CN114755107B - Switchable comprehensive mechanical load test equipment - Google Patents
Switchable comprehensive mechanical load test equipment Download PDFInfo
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- CN114755107B CN114755107B CN202210491018.0A CN202210491018A CN114755107B CN 114755107 B CN114755107 B CN 114755107B CN 202210491018 A CN202210491018 A CN 202210491018A CN 114755107 B CN114755107 B CN 114755107B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/08—Testing mechanical properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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Abstract
The application relates to switchable comprehensive mechanical load test equipment, and relates to the field of photovoltaics. The equipment comprises a profile outer frame, a dynamic and static load unit, a snow load unit and a component mounting unit are all positioned in a containing space formed by the profile outer frame, the dynamic and static load unit and the snow load unit are all connected with the upper part of the profile outer frame, the component mounting unit is movably arranged below the dynamic and static load unit and the snow load unit, and the photovoltaic component is movably mounted on the component mounting unit; the dynamic and static load units and the snow load units comprise a plurality of groups of test components; the snow load unit further comprises a lifting mechanism, wherein the lifting mechanism is used for driving one end of the component mounting unit, which is close to the snow load unit, to do lifting movement and driving the testing component of the snow load unit to synchronously lift; and a laser range finder is also arranged below the component mounting unit. The comprehensive load test equipment for the photovoltaic module, which is adjustable in pressure mode, capable of automatically controlling and collecting pressure and integrating static load, dynamic load and non-uniform load, is realized.
Description
Technical Field
The application relates to the technical field of photovoltaics, in particular to switchable comprehensive mechanical load test equipment.
Background
With the high-speed development of the photovoltaic industry, the increasingly mature solar industry begins to recognize that the reliability of the photovoltaic module is equally important as the power output; thus, high quality photovoltaic module manufacturers are integrating reliability testing into the design process and utilizing the test results to fine tune the module quality during mass production; one aspect of the reliability of the module is to resist the influence of external force, and as the installation region of the photovoltaic module comprises different countries and regions, the photovoltaic module is required to bear the examination of various climatic conditions, and besides the general climatic conditions, the photovoltaic module also comprises extreme climatic conditions such as hurricane, snow and ice coating; in order to ensure that the photovoltaic module can be used for a long time under the weather conditions, each detection mechanism provides a series of mechanical load test requirements.
At present, mechanical load tests on components mainly comprise uniform static mechanical load tests, uniform dynamic mechanical load tests and non-uniform mechanical load tests; wherein, uniform static mechanical load is that a certain pressure is applied to the front and the back respectively in a divided way, and the device is suitable for general outdoor climate conditions; the uniform dynamic mechanical load simulates the influence of strong wind on the photovoltaic module, applies pressure and tensile force to the surface of the module as one cycle, and tests 1000 cycles; the non-uniform mechanical load simulates the situation where snow accumulates on the bottom of the assembly under snowfall conditions, causing uneven pressure on the surface of the assembly, which requires the application of weight elements to the assembly, with uneven pressure applied varying from the bottom to the top of the assembly.
The static mechanical load test equipment in the related art mainly comprises three types of air bags, sucking discs and sand pressing; the sand pressure type and air bag type mechanical load equipment has low flexibility, and the air bag type component bears actual pressure and is controversial; the dynamic mechanical load equipment mainly comprises an air bag type device and a sucking disc type device; for the non-uniform snow load test, different test mechanisms provide different test equipment, and at present, a mode of applying pressure to the assembly by using metal sheets as weight elements is more common, each metal block is independently controlled by a chain, and the pressure applied to the assembly is changed by increasing the number of the metal sheets, but the operation is more complicated during the test in the mode. In summary, the disadvantages of the prior art are mainly as follows: on the one hand, at present, few devices capable of realizing non-uniform snow load are available; on the other hand, most of the existing non-uniform snow load test equipment utilizes metal sheet superposition to realize pressure change, the weight of the metal sheet for applying pressure by the equipment is too large, potential safety hazards exist for testers, the equipment is complicated to operate and control, the equipment cannot be controlled by a program, the cost is high, and the number of accessories to be configured when the size of the assembly is changed is also required to be changed; on the other hand, there is currently a lack of a comprehensive mechanical load test device that integrates static mechanical load, dynamic mechanical load tests, and non-uniform snow load.
Disclosure of Invention
The application aims to: in order to overcome the defects in the prior art, the application provides switchable comprehensive mechanical load test equipment, and aims to solve the technical problem of how to provide photovoltaic module comprehensive load test equipment which is adjustable in pressure mode, automatically controllable and collectable in pressure, and integrates static load, dynamic load and nonuniform load.
The technical scheme is as follows: in order to achieve the above purpose, the application adopts the following technical scheme:
the switchable comprehensive mechanical load test equipment comprises a profile outer frame, a dynamic and static load unit, a snow load unit, a component mounting unit and a photovoltaic component;
the profile outer frame is in a cuboid shape, the dynamic and static load unit, the snow load unit and the component mounting unit are all located in a containing space formed by the profile outer frame, the dynamic and static load unit and the snow load unit are connected with the upper portion of the profile outer frame, the dynamic and static load unit is located on one side of the snow load unit, the component mounting unit is movably arranged below the dynamic and static load unit and the snow load unit, and the photovoltaic component is movably mounted on the component mounting unit;
the static load unit and the snow load unit comprise a plurality of groups of test assemblies which are uniformly distributed at intervals, the test assemblies are vertically arranged, and the test assemblies correspond to the positions of the photovoltaic assemblies;
the snow load unit further comprises a lifting mechanism, wherein the lifting mechanism is used for driving one end of the component mounting unit, which is close to the snow load unit, to perform lifting movement and driving the test component of the snow load unit to synchronously lift;
and a laser range finder is also arranged below the component mounting unit.
In one possible implementation manner, a first mounting frame is connected to the top of the test assembly of the dynamic and static load unit, and the first mounting frame is fixedly connected with the upper part of the profile outer frame;
the top of the testing component of the snow load unit is connected with a second mounting frame, and the second mounting frame is connected with the upper portion of the profile outer frame in a lifting mode through the lifting mechanism.
In one possible implementation, the test assembly includes a cylinder, a telescopic rod, a pressure sensor, and a suction cup;
the lower end of the cylinder is connected with the telescopic rod, the lower end of the telescopic rod is connected with the pressure sensor, and the lower end of the pressure sensor is connected with the sucker;
the cylinder of the test assembly of the static and dynamic load unit is connected with the first mounting frame;
and the cylinder of the testing assembly of the snow load unit is connected with the second mounting frame.
In one possible implementation manner, the component mounting unit comprises a component mounting outer frame, two groups of width adjusting sliding rods which are symmetrically distributed are connected to the inner side of the component mounting outer frame, two groups of width adjusting sliding rods are connected to the two ends of the width adjusting sliding rods in a sliding manner through width adjusting sliding blocks, two groups of length adjusting sliding rods are parallel to each other, the length adjusting sliding rods are perpendicular to the width adjusting sliding rods, two groups of length adjusting sliding blocks are connected to the length adjusting sliding rods in a sliding manner, and four groups of length adjusting sliding blocks are connected with the photovoltaic component.
In one possible implementation, the lifting mechanism includes a driving mechanism, two sets of driving lifting mechanisms, and two sets of driven lifting mechanisms;
the second mounting frame is provided with a first mounting frame end, a second mounting frame end, a third mounting frame end and a fourth mounting frame end;
the driving mechanism is in transmission connection with two groups of active lifting mechanisms, the two groups of active lifting mechanisms are respectively in lifting connection with the first end of the mounting frame and the second end of the mounting frame, and the two groups of active lifting mechanisms are also detachably connected with the component mounting unit;
the third end of the mounting frame and the fourth end of the mounting frame are respectively connected with the upper part of the profile outer frame in a sliding mode along the vertical direction through two groups of driven lifting mechanisms.
In one possible implementation, the driving mechanism includes a driving motor, a speed reducer, and a power rotating rod;
the driving motor is arranged at the bottom of the profile outer frame, the power output end of the driving motor is connected with the speed reducer, the power output end of the speed reducer is connected with the power rotating rod, and the two ends of the power rotating rod are respectively connected with the two groups of driving lifting mechanisms in a transmission way.
In one possible implementation, the active lifting mechanism includes a worm gear assembly, a ball screw, a nut pair, a first connecting rod, a first slider, a first lifting slide rail, a hinge rod, and a connecting flange;
the turbine worm assembly is connected with the power rotating rod, the ball screw is in transmission connection with the turbine worm assembly, the nut pair is connected to the ball screw in a threaded manner, and the nut pair is connected with the second mounting frame;
the first end of the mounting frame and the second end of the mounting frame are respectively and correspondingly connected with a group of nut pairs;
the first lifting slide rail is vertically arranged on the profile outer frame, the first sliding block is connected with the nut pair through the first connecting rod, and the first sliding block is in sliding connection with the first lifting slide rail along the vertical direction;
the hinge rod is hinged with the first sliding block, one end, far away from the first sliding block, of the hinge rod is connected with the connecting flange, and the connecting flange is detachably connected with the component mounting unit.
In one possible implementation manner, the driven lifting mechanism comprises a second sliding block and a second lifting sliding rail, the second lifting sliding rail is installed on the profile outer frame along the vertical direction, and the second installation frame is in sliding connection with the second lifting sliding rail along the vertical direction through the second sliding block;
the third end of the mounting frame and the fourth end of the mounting frame are respectively and correspondingly connected with a group of second sliding blocks;
the driven lifting mechanism further comprises an auxiliary supporting rod, a first end of the auxiliary supporting rod is connected with the second sliding block, and a second end of the auxiliary supporting rod is connected with the first sliding block.
In one possible implementation manner, a first flange plate and a second flange plate are connected to two side walls of the component mounting unit, and the first flange plate is detachably connected with the connecting flange;
the both sides of subassembly installation unit all are equipped with the mounting flange seat, the mounting flange seat is installed on the section bar outer frame, the mounting flange seat with the connection can be dismantled to the second ring flange.
In one possible implementation manner, a horizontal sliding rail is further arranged below the component mounting unit, a plurality of groups of pulleys are further connected to the bottom of the component mounting unit, and the component mounting unit is in sliding connection with the horizontal sliding rail through the plurality of groups of pulleys.
The technical scheme provided by the application has the beneficial effects that at least:
on the one hand, through the matched connection of the component mounting unit, the testing component and the lifting mechanism, the pressure mode is adjustable, the pressure intensity can be automatically controlled and collected when the photovoltaic component performs mechanical load test, static load, dynamic load and nonuniform load are integrated, and the safety performance is high; on the other hand, the inclination angle of the component mounting unit is adjustable, and the device can adapt to component tests with different sizes, all test processes can be edited and controlled by adopting a program, and the operation is simple and convenient.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and together with the embodiments of the application, serve to explain the application. In the drawings:
FIG. 1 illustrates a schematic diagram of a front view of a switchable integrated mechanical load testing device according to an exemplary embodiment of the present application;
FIG. 2 illustrates a schematic diagram of a front view of another switchable integrated mechanical load testing device provided in accordance with an exemplary embodiment of the present application;
FIG. 3 shows a schematic view of the B-B cross-sectional structure of FIG. 2;
FIG. 4 shows a schematic view of the A-A cross-section of FIG. 2;
FIG. 5 illustrates a schematic diagram of a front view of another switchable integrated mechanical load testing device provided in accordance with an exemplary embodiment of the present application;
FIG. 6 illustrates a schematic top view of another switchable integrated mechanical load testing device provided in accordance with an exemplary embodiment of the present application;
FIG. 7 illustrates a schematic diagram of a front view of another switchable integrated mechanical load testing device provided in accordance with an exemplary embodiment of the present application;
in the figure:
1. switchable comprehensive mechanical load test equipment;
11. an outer frame of the section bar; 12. a dynamic and static load unit; 13. a snow load unit; 14. a component mounting unit; 15. a testing component; 16. a lifting mechanism; 17. a horizontal slide rail; 18. a first mounting frame; 19. a second mounting frame; 20. a photovoltaic module; 21. a laser range finder;
111. a fixed flange seat;
141. an assembly mounting outer frame; 142. a width adjusting slide bar; 143. a length adjusting slide bar; 144. a width adjustment slider; 145. a length adjusting slider; 146. a pulley; 147. a first flange; 148. a second flange;
151. a cylinder; 152. a telescopic rod; 153. a pressure sensor; 154. a suction cup;
161. a driving mechanism; 162. an active lifting mechanism; 163. a driven lifting mechanism;
1611. a driving motor; 1612. a speed reducer; 1613. a power rotating rod;
1621. a worm gear assembly; 1622. a ball screw; 1623. a nut pair; 1624. a first connecting rod; 1625. a first slider; 1626. a first lifting slide rail; 1627. a hinge rod; 1628. a connecting flange;
1631. a second slider; 1632. the second lifting slide rail; 1633. an auxiliary support rod;
1901. a mounting bracket first end; 1902. a second end of the mounting bracket; 1903. a third end of the mounting frame; 1904. and a fourth end of the mounting frame.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The application will be further described with reference to the drawings and examples.
First, the terms involved in the embodiments of the present application will be briefly described:
the worm wheel and worm is equivalent to a gear and a rack in a middle plane of the worm wheel and worm, the worm is similar to a screw in shape, and the intersection angle of the two axes of the worm wheel and the worm is usually 90 degrees; in order to improve the contact condition of the gear teeth, the worm wheel is made into an arc shape along the tooth width direction so as to wrap the worm part, and thus, the worm and the wheel are in line contact rather than point contact when being meshed.
The ball screw is in threaded connection with the nut pair, namely the external thread of the ball screw is in threaded connection with the internal thread of the nut pair, and the rotary motion of the ball screw is converted into linear motion of the nut pair.
Fig. 1 shows a schematic front view of a switchable comprehensive mechanical load test apparatus according to an exemplary embodiment of the present application, where the apparatus includes a profile outer frame 11, a static and dynamic load unit 12, a snow load unit 13, a component mounting unit 14, and a photovoltaic module 20; the profile outer frame 11 is cuboid, and sound year unit 12, snow year unit 13 and subassembly installation unit 14 all are located the accommodation space that profile outer frame 11 formed, and sound year unit 12 and snow year unit 13 all are connected with the upper portion of profile outer frame 11, and sound year unit 12 is located one side of snow year unit 13, and subassembly installation unit 14 activity sets up in the below of sound year unit 12 and snow year unit 13. Referring to fig. 4, the photovoltaic module 20 is movably mounted on the module mounting unit 14. Referring to fig. 2, each of the static and dynamic load units 12 and 13 includes a plurality of groups of test assemblies 15 distributed at equal intervals, the test assemblies 15 are vertically arranged, and the test assemblies 15 correspond to the positions of the photovoltaic assemblies 20; the snow load unit 13 further includes a lifting mechanism 16, where the lifting mechanism 16 is used to drive the component mounting unit 14 to make lifting movement near one end of the snow load unit 13, and drive the test component 15 of the snow load unit 13 to lift synchronously. Referring to fig. 3, a laser range finder 21 is also installed below the component mounting unit 14.
In the embodiment of the present application, the static mechanical load and dynamic mechanical load test of the photovoltaic module 20 is performed by the static and dynamic load units 12 on the left side of the device; the right side of the device is a snow load unit 13 for carrying out non-uniform snow load test; through the cooperation connection of the component mounting unit 14 and the lifting mechanism 16, the right side of the component mounting unit 14 can be lifted to enable the photovoltaic component 20 to be obliquely arranged, so that the driven static mechanical load test is conveniently switched to the non-uniform snow load test.
In the embodiment of the present application, the component mounting unit 14 can flexibly adjust and clamp according to the size of the photovoltaic component 20, and the angle of the lifting mechanism 16 driving the component mounting unit 14 to incline can be flexibly adjusted according to the working condition.
In one example, when the component mounting unit 14 is subjected to a non-uniform snow load test, the lifting mechanism 16 tilts the component mounting unit 14 by an angle of 37 degrees.
In one example, the test components 15 of the on-load unit 12 are 104 sets; the test assemblies 15 of the snow load unit 13 are in 40 groups.
In the embodiment of the present application, the laser rangefinder 21 below the component mounting unit 14 is used to track the deformation amount of the photovoltaic component 20 when the mechanical load test is performed.
In an embodiment of the application, the apparatus further comprises a control unit for controlling the movement of the test assembly 15, the lifting mechanism 16. Alternatively, the component mounting unit 14 may be manually adjusted in position and may be connected to a control unit for automated control.
In an alternative embodiment, referring to fig. 2, a first mounting frame 18 is connected to the top of the test assembly 15 of the static and dynamic unit 12, and the first mounting frame 18 is fixedly connected to the upper portion of the profile outer frame 11; the top of the test assembly 15 of the snow load unit 13 is connected with a second mounting frame 19, and the second mounting frame 19 is connected with the upper part of the profile outer frame 11 in a lifting manner through a lifting mechanism 16.
In the embodiment of the present application, the second mounting frame 19 is movable, and when a heterogeneous snow load test is required, the lifting mechanism 16 drives one end of the component mounting unit 14, which is close to the snow load unit 13, to lift, and simultaneously drives the second mounting frame 19 to lift, and the second mounting frame 19 drives the test component 15 of the snow load unit 13 to lift synchronously.
In an alternative embodiment, referring to FIG. 2, test assembly 15 includes a cylinder 151, a telescoping rod 152, a pressure sensor 153, and a suction cup 154; the lower end of the air cylinder 151 is connected with a telescopic rod 152, the lower end of the telescopic rod 152 is connected with a pressure sensor 153, and the lower end of the pressure sensor 153 is connected with a sucker 154; the cylinder 151 of the test assembly 15 of the static and dynamic unit 12 is connected with the first mounting frame 18; the cylinder 151 of the test assembly 15 of the snow load unit 13 is connected to the second mounting frame 19.
In the embodiment of the present application, the PLC of the device control unit controls the air pressure value of each air cylinder 151 and the feedback value of each pressure sensor 153, and then applies different pressure values to the photovoltaic module 20, and simultaneously the lower laser rangefinder 21 is used for tracking the deformation of the photovoltaic module 20 when the mechanical load test is performed.
In an alternative embodiment, referring to fig. 4, the component mounting unit 14 includes a component mounting frame 141, two groups of width adjustment sliding bars 142 symmetrically distributed are connected to the inner side of the component mounting frame 141, two ends of the two groups of width adjustment sliding bars 142 are slidably connected to length adjustment sliding bars 143 through width adjustment sliding bars 144, the two groups of length adjustment sliding bars 143 are parallel to each other, the length adjustment sliding bars 143 are perpendicular to the width adjustment sliding bars 142, two groups of length adjustment sliding bars 145 are slidably connected to the two groups of length adjustment sliding bars 143, and the four groups of length adjustment sliding bars 145 are connected to the photovoltaic component 20.
In the embodiment of the present application, the photovoltaic module 20 is fixed by four groups of length adjustment sliders 145, and the length adjustment sliders 145 and the width adjustment sliders 144 can be slid to be adapted according to the difference of the length and the width of the photovoltaic module 20.
Alternatively, the length adjustment slider 145 and the width adjustment slider 144 may be motorized or manually slidable and then secured in place by tightening a locking screw.
In an alternative embodiment, referring to fig. 5, 6 and 7, the lift mechanism 16 includes a drive mechanism 161, two sets of driving lift mechanisms 162, and two sets of driven lift mechanisms 163; the second mount 19 has a mount first end 1901, a mount second end 1902, a mount third end 1903, and a mount fourth end 1904; the driving mechanism 161 is in transmission connection with two groups of active lifting mechanisms 162, the two groups of active lifting mechanisms 162 are respectively connected with the first end 1901 of the mounting frame and the second end 1902 of the mounting frame in a lifting manner, and the two groups of active lifting mechanisms 162 are also detachably connected with the component mounting unit 14; the third end 1903 of the mounting frame and the fourth end 1904 of the mounting frame are respectively connected with the upper part of the profile outer frame 11 in a sliding manner along the vertical direction through two groups of driven lifting mechanisms 163.
In the embodiment of the present application, when the two sets of active lifting mechanisms 162 are in a working state, the two sets of active lifting mechanisms 162 drive one end of the component mounting unit 14, which is close to the snow load unit 13, to rise, the two sets of active lifting mechanisms 162 are respectively connected with the first end 1901 of the mounting frame and the second end 1902 of the mounting frame in a lifting manner, and the third end 1903 of the mounting frame and the fourth end 1904 of the mounting frame are respectively connected with the upper portion of the profile outer frame 11 in a sliding manner along the vertical direction through the two sets of driven lifting mechanisms 163, so that when a non-uniform snow load test is required, the lifting mechanism 16 drives one end of the component mounting unit 14, which is close to the snow load unit 13, to rise, and simultaneously drives the second mounting frame 19 to rise.
In an alternative embodiment, referring to FIG. 3, the drive mechanism 161 includes a drive motor 1611, a speed reducer 1612, and a power swivel 1613; the driving motor 1611 is installed at the bottom of the profile outer frame 11, the power output end of the driving motor 1611 is connected with the speed reducer 1612, the power output end of the speed reducer 1612 is connected with the power rotating rod 1613, and two ends of the power rotating rod 1613 are respectively connected with the two groups of driving lifting mechanisms 162 in a transmission manner.
In the embodiment of the present application, when the driving motor 1611 is in a working state, the speed reducer 1612 drives the power rotating rod 1613 to rotate, and the power rotating rod 1613 drives the two groups of active lifting mechanisms 162 to do lifting motion.
In an alternative embodiment, referring to fig. 5 and 7, the active lift mechanism 162 includes a worm gear assembly 1621, a ball screw 1622, a nut pair 1623, a first connecting rod 1624, a first slider 1625, a first lift rail 1626, a hinge rod 1627, and a connecting flange 1628; the turbine worm assembly 1621 is connected with the power rotating rod 1613, the ball screw 1622 is in transmission connection with the turbine worm assembly 1621, the ball screw 1622 is in threaded connection with a nut pair 1623, and the nut pair 1623 is connected with the second mounting frame 19; the first end 1901 of the mounting frame and the second end 1902 of the mounting frame are respectively and correspondingly connected with a group of nut pairs 1623; the first lifting slide rail 1626 is vertically arranged on the profile outer frame 11, the first sliding block 1625 is connected with the nut pair 1623 through a first connecting rod 1624, and the first sliding block 1625 is connected with the first lifting slide rail 1626 in a sliding manner along the vertical direction; the hinge lever 1627 is hinged to the first slider 1625, and one end of the hinge lever 1627 remote from the first slider 1625 is connected to a connection flange 1628, the connection flange 1628 being detachably connected to the component mounting unit 14.
In the embodiment of the application, when the driving mechanism 161 is in a working state, the power rotating rod 1613 of the driving mechanism 161 drives the ball screw 1622 to rotate through the worm gear component 1621, the ball screw 1622 drives the nut pair 1623 to do lifting motion, the nut pair 1623 drives the second mounting frame 19 and the first connecting rod 1624 to do lifting motion, the first connecting rod 1624 drives the first sliding block 1625 to slide on the first lifting sliding rail 1626 along the vertical direction, the first sliding block 1625 drives the hinge rod 1627 to do lifting motion, and when the connecting flange 1628 is connected with the component mounting unit 14, the hinge rod 1627 drives one end of the component mounting unit 14 close to the snow load unit 13 to do lifting motion.
In an alternative embodiment, referring to fig. 5 and 6, the driven lifting mechanism 163 includes a second slider 1631 and a second lifting slide rail 1632, the second lifting slide rail 1632 is mounted on the profile outer frame 11 in the vertical direction, and the second mounting frame 19 is slidably connected to the second lifting slide rail 1632 in the vertical direction through the second slider 1631; the third end 1903 of the mounting frame and the fourth end 1904 of the mounting frame are respectively and correspondingly connected with a group of second sliding blocks 1631; the driven elevating mechanism 163 further includes an auxiliary supporting rod 1633, and a first end of the auxiliary supporting rod 1633 is connected to the second slider 1631, and a second end is connected to the first slider 1625.
In the embodiment of the present application, when the driving lifting mechanism 162 works, the second mounting frame 19 is driven to do lifting movement with the assistance of the driven lifting mechanism 163; namely, the first end 1901 of the mounting frame and the second end 1902 of the mounting frame are driving ends, and the third end 1903 of the mounting frame and the fourth end 1904 of the mounting frame are driven ends.
In the embodiment of the application, the auxiliary supporting rod 1633 can make the lifting movement of the second mounting frame 19 more stable, and plays an auxiliary supporting role for the driven lifting mechanism 163.
In an alternative embodiment, referring to fig. 4 and 5, the first flange 147 and the second flange 148 are connected to both sidewalls of the component mounting unit 14, and the first flange 147 is detachably connected to the connection flange 1628; both sides of the assembly mounting unit 14 are provided with fixing flange seats 111, the fixing flange seats 111 are mounted on the profile outer frame 11, and the fixing flange seats 111 are detachably connected with the second flange plate 148. The lower part of the component mounting unit 14 is also provided with a horizontal sliding rail 17, the bottom of the component mounting unit 14 is also connected with a plurality of groups of pulleys 146, and the component mounting unit 14 is in sliding connection with the horizontal sliding rail 17 through the plurality of groups of pulleys 146.
In the embodiment of the present application, the fixed flange seat 111 and the second flange 148 are in a disassembled and unconnected state, and the first flange 147 and the connecting flange 1628 are in a disassembled and unconnected state when static mechanical load and dynamic mechanical load tests are performed; when the non-uniform snowload test is performed, the component mounting unit 14 is first slid on the horizontal slide rail 17 by the pulley 146, slid rightward to the fixed flange seat 111 may be coupled with the second flange 148, and the first flange 147 may be coupled with the coupling flange 1628. At this time, the lifting mechanism 16 may drive the right side of the component mounting unit 14 to be lifted so as to incline the photovoltaic component 20.
Next, an operation principle of a switchable comprehensive mechanical load test apparatus according to an embodiment of the present application will be described.
Firstly, a photovoltaic module is mounted on a module mounting unit, the photovoltaic module is fixed through four groups of length adjusting sliding blocks, and the length adjusting sliding blocks and the sliding width adjusting sliding blocks can be slid to be adapted and adjusted according to the difference of the length and the width of the photovoltaic module;
then, the static and dynamic load unit performs a test through 104 groups of test assemblies, the PLC of the equipment controls the air pressure value of each air cylinder and the feedback value of each pressure sensor, different pressure values are applied to the photovoltaic assemblies, and meanwhile, the lower laser range finders simultaneously track the deformation on the photovoltaic plates;
then, when a non-uniform snow load test is required, the component mounting unit slides on the horizontal sliding rail through the pulley, the component mounting unit slides to the right side until the fixed flange seat can be connected with the second flange plate, and the first flange plate can be connected with the connecting flange; when driving motor is in operating condition, the speed reducer drives the power bull stick rotatory, the power bull stick passes through turbine worm subassembly and drives ball screw rotatory, ball screw drives the nut pair and is elevating movement, the nut pair drives second mounting bracket and head rod and is elevating movement, the head rod drives first slider and slides along vertical direction on first lift slide rail, first slider drives articulated pole and is elevating movement, flange on the articulated pole drives the one end that the subassembly installation unit is close to the snow and carries the unit and be elevating movement, realize the position that photovoltaic module is 37 degrees with the angle of horizontal plane, the snow carries the unit and tests through 40 sets of test module, equipment is pressed down through PLC control and is risen, come cyclic test photovoltaic module's snow year performance in proper order.
In the embodiment of the application, when the lifting mechanism drives the component mounting unit to be at a position with an angle of 37 degrees with the horizontal plane in the non-uniform snow load test, a 37-degree diagonal support can be placed on the back surface of the component mounting unit, and a photovoltaic panel is locked by screws, so that the stability in the non-uniform snow load test is improved; and a 37-degree inclination pressing block is placed on the photovoltaic module, so that the consistency of angles is ensured.
For a better understanding of the present application, the following describes the operation of a switchable integrated mechanical load testing device according to an embodiment of the present application. It should be noted that the embodiments described in this specific embodiment are only some embodiments of the present application, and do not limit the scope of protection of the present application.
During operation of the device, the device is operated in strict accordance with the following steps.
1) The equipment is powered on, and the equipment needs to wait 1 to 2 minutes (the time required for starting a control system) after being powered on;
2) Opening airborne test software, entering a main interface after the software completes equipment self-inspection, and automatically opening a pull-up electromagnetic valve;
3) Clicking a synchronous rising button, and rising the cylinder;
4) The placing assembly, the fixing assembly and the cylinder position are adjusted;
5) Setting clicking parameters, inputting parameters (front pressure, back pressure and the like), and checking and starting an air cylinder;
6) Clicking a save button to finish parameter setting, and displaying a character of which parameters are set beside the main interface parameter setting button;
7) Clicking a start operation button, and clicking a pause/continue button to pause and continue testing after starting operation;
8) Clicking to stop operation, and ending the test;
9) And (3) completing the test;
10 After the release button is clicked to release the cylinder, the synchronous lifting button is clicked, and the cylinder is automatically lifted
11 And (3) taking out the assembly, and ending the test.
In summary, on the one hand, the application realizes that the pressure mode is adjustable, the pressure can be automatically controlled and collected when the photovoltaic module performs mechanical load test through the matching connection of the module mounting unit, the test module and the lifting mechanism, integrates static load, dynamic load and uneven load, and has high safety performance; on the other hand, the inclination angle of the component mounting unit is adjustable, and the device can adapt to component tests with different sizes, all test processes can be edited and controlled by adopting a program, and the operation is simple and convenient.
The foregoing is only a preferred embodiment of the application, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present application, and such modifications and adaptations are intended to be comprehended within the scope of the application.
Claims (6)
1. The switchable comprehensive mechanical load test equipment (1) is characterized by comprising a profile outer frame (11), a dynamic and static load unit (12), a snow load unit (13), a component mounting unit (14) and a photovoltaic component (20);
the profile outer frame (11) is in a cuboid shape, the static load unit (12), the snow load unit (13) and the component mounting unit (14) are all located in a containing space formed by the profile outer frame (11), the static load unit (12) and the snow load unit (13) are all connected with the upper part of the profile outer frame (11), the static load unit (12) is located at one side of the snow load unit (13), the component mounting unit (14) is movably arranged below the static load unit (12) and the snow load unit (13), and the photovoltaic component (20) is movably mounted on the component mounting unit (14);
the dynamic and static load units (12) and the snow load units (13) comprise a plurality of groups of test assemblies (15) which are uniformly distributed at intervals, the test assemblies (15) are vertically arranged, and the test assemblies (15) correspond to the photovoltaic assemblies (20);
the snow load unit (13) further comprises a lifting mechanism (16), and the lifting mechanism (16) is used for driving one end of the component mounting unit (14) close to the snow load unit (13) to do lifting motion and driving the test component (15) of the snow load unit (13) to synchronously lift;
a laser range finder (21) is also arranged below the component mounting unit (14);
the top of a test assembly (15) of the dynamic and static load unit (12) is connected with a first mounting frame (18), and the first mounting frame (18) is fixedly connected with the upper part of the profile outer frame (11); the top of the testing component (15) of the snow load unit (13) is connected with a second mounting frame (19), and the second mounting frame (19) is connected with the upper part of the profile outer frame (11) in a lifting manner through the lifting mechanism (16);
the test assembly (15) comprises a cylinder (151), a telescopic rod (152), a pressure sensor (153) and a sucker (154); the lower end of the air cylinder (151) is connected with the telescopic rod (152), the lower end of the telescopic rod (152) is connected with the pressure sensor (153), and the lower end of the pressure sensor (153) is connected with the sucker (154); the air cylinder (151) of the test assembly (15) of the static and dynamic unit (12) is connected with the first mounting frame (18); the cylinder (151) of the test assembly (15) of the snow load unit (13) is connected with the second mounting frame (19);
the assembly mounting unit (14) comprises an assembly mounting outer frame (141), two groups of width adjusting sliding rods (142) which are symmetrically distributed are connected to the inner side of the assembly mounting outer frame (141), two groups of width adjusting sliding rods (142) are connected with length adjusting sliding rods (143) in a sliding manner through width adjusting sliding blocks (144), the two groups of length adjusting sliding rods (143) are parallel to each other, the length adjusting sliding rods (143) are perpendicular to the width adjusting sliding rods (142), two groups of length adjusting sliding rods (145) are connected to the two groups of length adjusting sliding rods (143) in a sliding manner, and four groups of length adjusting sliding rods (145) are connected with the photovoltaic assembly (20);
the lifting mechanism (16) comprises a driving mechanism (161), two groups of driving lifting mechanisms (162) and two groups of driven lifting mechanisms (163); the second mounting frame (19) is provided with a first mounting frame end (1901), a second mounting frame end (1902), a third mounting frame end (1903) and a fourth mounting frame end (1904); the driving mechanism (161) is in transmission connection with two groups of active lifting mechanisms (162), the two groups of active lifting mechanisms (162) are respectively connected with the first end (1901) of the mounting frame and the second end (1902) of the mounting frame in a lifting manner, and the two groups of active lifting mechanisms (162) are also detachably connected with the component mounting unit (14); the third end (1903) of the installation frame and the fourth end (1904) of the installation frame are respectively connected with the upper part of the profile outer frame (11) in a sliding mode along the vertical direction through two groups of driven lifting mechanisms (163).
2. The switchable integrated mechanical load testing device (1) according to claim 1, characterized in that the drive mechanism (161) comprises a drive motor (1611), a speed reducer (1612) and a power swivel (1613);
the driving motor (1611) is mounted at the bottom of the profile outer frame (11), the power output end of the driving motor (1611) is connected with the speed reducer (1612), the power output end of the speed reducer (1612) is connected with the power rotating rod (1613), and two ends of the power rotating rod (1613) are respectively in transmission connection with the two groups of active lifting mechanisms (162).
3. The switchable integrated mechanical load testing device (1) according to claim 2, wherein the active lifting mechanism (162) comprises a worm gear assembly (1621), a ball screw (1622), a nut pair (1623), a first connecting rod (1624), a first slider (1625), a first lifting slide rail (1626), a hinge rod (1627) and a connecting flange (1628);
the turbine worm assembly (1621) is connected with the power rotating rod (1613), the ball screw (1622) is in transmission connection with the turbine worm assembly (1621), the nut pair (1623) is connected to the ball screw (1622) in a threaded manner, and the nut pair (1623) is connected with the second mounting frame (19);
the first end (1901) of the mounting frame and the second end (1902) of the mounting frame are respectively and correspondingly connected with a group of nut pairs (1623);
the first lifting slide rail (1626) is vertically arranged on the profile outer frame (11), the first sliding block (1625) is connected with the nut pair (1623) through the first connecting rod (1624), and the first sliding block (1625) is in sliding connection with the first lifting slide rail (1626) along the vertical direction;
the hinge rod (1627) is hinged with the first sliding block (1625), one end of the hinge rod (1627) away from the first sliding block (1625) is connected with the connecting flange (1628), and the connecting flange (1628) is detachably connected with the component mounting unit (14).
4. A switchable integrated mechanical load testing device (1) according to claim 3, characterized in that the driven lifting mechanism (163) comprises a second slider (1631) and a second lifting slide rail (1632), the second lifting slide rail (1632) being mounted on the profile outer frame (11) in a vertical direction, the second mounting frame (19) being in sliding connection with the second lifting slide rail (1632) in a vertical direction via the second slider (1631);
the third end (1903) of the mounting frame and the fourth end (1904) of the mounting frame are respectively and correspondingly connected with a group of second sliding blocks (1631);
the driven lifting mechanism (163) further comprises an auxiliary supporting rod (1633), a first end of the auxiliary supporting rod (1633) is connected with the second sliding block (1631), and a second end of the auxiliary supporting rod is connected with the first sliding block (1625).
5. A switchable integrated mechanical load testing device (1) according to claim 3, characterized in that a first flange (147) and a second flange (148) are connected to both side walls of the component mounting unit (14), the first flange (147) being detachably connected to the connecting flange (1628);
both sides of the assembly mounting unit (14) are respectively provided with a fixed flange seat (111), the fixed flange seats (111) are mounted on the profile outer frame (11), and the fixed flange seats (111) are detachably connected with the second flange plate (148).
6. The switchable comprehensive mechanical load test device (1) according to any one of claims 1 to 5, wherein a horizontal sliding rail (17) is further arranged below the component mounting unit (14), a plurality of groups of pulleys (146) are further connected to the bottom of the component mounting unit (14), and the component mounting unit (14) is slidably connected with the horizontal sliding rail (17) through the plurality of groups of pulleys (146).
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| CN202210491018.0A CN114755107B (en) | 2022-05-07 | 2022-05-07 | Switchable comprehensive mechanical load test equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115248162A (en) * | 2022-08-01 | 2022-10-28 | 江苏中信博新能源科技股份有限公司 | Wind-resistant load capacity testing device and method for photovoltaic support |
| CN115356214B (en) * | 2022-10-14 | 2022-12-16 | 山东奥客隆太阳能科技有限公司 | Photovoltaic module snow load detection device |
| CN115800919B (en) * | 2023-01-06 | 2023-05-09 | 英利能源发展有限公司 | Mechanical load performance test method and device for photovoltaic module |
| CN116642658B (en) * | 2023-06-14 | 2024-07-16 | 山东奥翔电力工程设计咨询有限公司 | Photovoltaic module dynamic wind load simulation test equipment and method |
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