CN117928985B - Heavy-duty car chassis strength test equipment - Google Patents
Heavy-duty car chassis strength test equipment Download PDFInfo
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- CN117928985B CN117928985B CN202410338360.6A CN202410338360A CN117928985B CN 117928985 B CN117928985 B CN 117928985B CN 202410338360 A CN202410338360 A CN 202410338360A CN 117928985 B CN117928985 B CN 117928985B
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- 238000012360 testing method Methods 0.000 title claims abstract description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 230000007246 mechanism Effects 0.000 claims abstract description 70
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 230000002146 bilateral effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/04—Monodirectional test stands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of automobile chassis detection, in particular to heavy-duty automobile chassis strength testing equipment, which comprises: place board, vibrator includes bilateral symmetry installs place two backup pads of board upper end, the connecting rod is installed to the backup pad upper end, two all install vibration mechanism jointly between the opposite tip of connecting rod, two be connected with water spray mechanism between the vibration mechanism. The vibration mechanism adopted by the invention can be used for testing independently, and can also be matched with the Shi Chongji mechanism and the water spraying mechanism respectively, in addition, the vibration mechanism, the weight applying mechanism and the water spraying mechanism can be matched with testing at the same time, and different combinations form different testing conditions, so that the diversity of testing of the automobile chassis is effectively increased, the testing is more fit and practical, the testing data are enriched, and the accuracy of the testing result is improved.
Description
Technical Field
The invention relates to the technical field of automobile chassis detection, in particular to heavy-duty automobile chassis strength testing equipment.
Background
The chassis of the heavy-duty car consists of four modules of a drive system, a running system, a steering system and a braking system. The chassis is used for supporting and installing an automobile engine and various parts and assemblies thereof, forming the integral shape of the automobile, receiving the power of the engine, enabling the automobile to move, ensuring normal running, and the chassis is made of steel, aluminum alloy and the like.
In the production process of automobile chassis, a chassis sample needs to be subjected to strength test to ensure that the quality of the mass-produced automobile chassis meets the requirements, and the strength test of the automobile chassis usually comprises the following parts. Material testing: the material strength of the chassis is a primary consideration to ensure that it meets relevant standards and strength requirements; static load test: the method is used for measuring the deformation condition of the chassis structure under the action of a fixed load, and evaluating the structural strength of the chassis structure by applying a static load on the chassis and measuring the deformation condition; dynamic load test: simulating vibration and impact of the vehicle under different road conditions to test the strength and durability of the chassis structure under dynamic load; fatigue test: simulating fatigue failure conditions in long-term use by repeatedly applying a load to test the durability of the chassis structure and evaluate whether it can withstand long-term vibration and load; high and low temperature testing: the chassis structure was tested in a high and low temperature environment to detect the strength and durability of the chassis structure. The test can be performed in a laboratory test, an analog simulation, a field test and the like, so that the strength and the durability of the chassis structure of the automobile can meet the design requirements.
When testing heavy-duty automobile chassis, the existing test equipment usually confirms that the test environment and equipment meet the safety standard, ensures that the chassis test equipment and instruments run normally, then determines the required load condition during testing according to the test requirement and standard, loads the appointed load onto the automobile chassis by using proper equipment, then carries out a series of dynamic tests on the automobile, records various parameters of the chassis during the test, and finally analyzes the data obtained during the test.
Disclosure of Invention
Based on this, it is necessary to provide a heavy-duty car chassis strength test device, which aims to solve the problems generated when testing the car chassis in the prior art.
In order to achieve the above purpose, the present invention is implemented by adopting the following technical scheme: a heavy-duty automotive chassis strength testing apparatus comprising: the plate is placed.
The vibrating device is installed place the board upper end, vibrating device is including bilateral symmetry installs place two backup pads of board upper end, the connecting rod is installed to the backup pad upper end, two all install vibration mechanism jointly between the opposite tip of connecting rod, two be connected with water spray mechanism between the vibration mechanism.
The vibration mechanism comprises a crawler belt conveying module arranged between the end parts of the connecting rods, a first driving motor is arranged on the crawler belt conveying module, a conveying belt is arranged on the crawler belt conveying module, a plurality of semicircular protrusions which are uniformly distributed are arranged on the conveying belt, semicircular recesses are arranged between every two adjacent semicircular protrusions, and a plurality of pushing protrusions which are uniformly distributed are arranged at one end, close to the supporting plate, of the conveying belt, which is located at the rear side.
The water spraying mechanism comprises a water collecting frame arranged between the two crawler belt conveying modules, two angle-adjusting branched chains are symmetrically arranged at the upper end of the water collecting frame, a water pump is arranged at the lower end of the water collecting frame, and an electric control branched chain is arranged at the position, close to the rear side, of the upper end of the water collecting frame.
The weighting device is installed the board upper end of placing, the weighting device is including being U type structure and opening install down place the support frame of board upper end, annular guide rail is installed to the horizontal segment lower extreme of support frame, and the horizontal segment middle part of support frame rotates and is connected with the I-shaped cylinder, I-shaped cylinder upper end fixedly connected with second driving motor's output shaft, and second driving motor installs the support frame upper end, I-shaped cylinder lower extreme is installed adjustable distance mechanism, is connected with the weight applying mechanism on the adjustable distance mechanism.
According to the embodiment of the invention, the vibration mechanism further comprises limiting blocks arranged at the opposite ends of the crawler belt conveying modules, and the upper ends of the limiting blocks are inserted with T-shaped plates.
According to the embodiment of the invention, the distance adjusting mechanism comprises a strip-shaped plate arranged at the lower end of the I-shaped cylinder, one end of the strip-shaped plate, which is far away from the I-shaped cylinder, is rotationally connected with the annular guide rail, a moving through hole is formed in the strip-shaped plate, an adjusting screw is rotationally connected inside the moving through hole, an output shaft of a third driving motor is arranged at one end, which is close to the center of the annular guide rail, of the adjusting screw, and the third driving motor is fixedly connected with the strip-shaped plate.
According to the embodiment of the invention, the Shi Chongji mechanism comprises a moving block which is connected with the adjusting screw in a threaded manner, the moving block is in sliding fit with the moving through hole, the lower end of the moving block is provided with a lifting module, the lower end of the lifting module is provided with a plurality of evenly distributed balancing weights, and two adjacent balancing weights are detachably connected.
According to the embodiment of the invention, the angle-adjusting branched chain comprises two mounting plates which are symmetrically arranged at the upper end of the water collecting frame from front to back, a rotating plate is rotatably connected between the two mounting plates, a plurality of water outlet pipes which are evenly distributed from front to back are arranged on the rotating plate in a penetrating manner, the lower ends of the water outlet pipes are fixedly connected and communicated with the water collecting frame, one end, close to the corresponding supporting plate, of the rotating plate is integrally formed with a rectangular plate, the lower end of the rectangular plate is hinged with an electric push rod, and the lower end of the electric push rod is hinged with the upper end of the water collecting frame.
According to the embodiment of the invention, the electric control branched chain comprises a rectangular column arranged at the upper end of the water collecting frame, a sliding counter bore is formed in the upper side of one end of the rectangular column, which is close to the rear side crawler belt conveying module, two electric contacts are symmetrically arranged on the vertical hole wall of the sliding counter bore, an L-shaped plate is connected in the sliding counter bore in a sliding mode, a connecting spring is arranged between the vertical section of the L-shaped plate and the rectangular column, a metal plate positioned in the sliding counter bore is arranged at the horizontal section of the L-shaped plate, and an arc-shaped bulge is arranged at one end of the L-shaped plate, which is close to the rear side crawler belt conveying module.
According to the embodiment of the invention, the electric contact is connected with a wire, and the wire penetrates through the rectangular column and is connected with the water pump.
According to the embodiment of the invention, the lower end of the water outlet pipe is provided with a corrugated structure, and the upper end of the water outlet pipe is provided with a nozzle.
In summary, the present invention includes at least one of the following beneficial effects: 1. the vibration device can jolt and vibrate the automobile chassis up and down, the strength of the automobile chassis under jolt and vibration can be tested, and the jolt and vibration degree can be adjusted, so that the strength of the automobile chassis under different speeds and different jolt degrees can be tested.
2. The vibration mechanism and the water spraying mechanism are matched, so that the situation when the automobile chassis passes through a hollow road section with a water pit can be simulated, the strength and the working condition of the automobile chassis under the situation can be tested, the testing diversity is improved, and the water contact position of the automobile chassis can be adaptively adjusted.
3. The weighting device adopted by the invention can apply different loads to different positions of the automobile chassis according to the requirement, and then is matched with the vibration mechanism, so that the function of testing the strength of the automobile chassis under different load conditions can be realized, the testing diversity is further increased, and the accuracy of the testing result is improved.
4. The vibration mechanism adopted by the invention can be used for testing independently, and can also be matched with the Shi Chongji mechanism and the water spraying mechanism respectively, in addition, the vibration mechanism, the weight applying mechanism and the water spraying mechanism can be matched with testing at the same time, and different combinations form different testing conditions, so that the diversity of testing of the automobile chassis is effectively increased, the testing is more fit and practical, the testing data are enriched, and the accuracy of the testing result is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic perspective view of a first perspective view of a chassis strength testing device for a heavy-duty car according to an embodiment of the present invention.
Fig. 2 is a schematic view showing a second perspective structure of a chassis strength testing apparatus for a heavy-duty car according to an embodiment of the present invention.
Fig. 3 shows a front view of a heavy-duty car chassis strength test apparatus provided according to an embodiment of the present invention.
Fig. 4 shows a left side view of a heavy-duty car chassis strength testing apparatus provided according to an embodiment of the present invention.
Figure 5 shows a cross-sectional view of A-A in figure 3.
Fig. 6 shows an enlarged view of the N region in fig. 5.
Fig. 7 shows a cross-sectional view of B-B in fig. 4.
Fig. 8 shows a schematic structural view of a water spraying mechanism of a heavy-duty car chassis strength testing apparatus according to an embodiment of the present invention.
Wherein the above figures include the following reference numerals: 1. placing a plate; 2. a vibration device; 21. a support plate; 22. a connecting rod; 23. a vibration mechanism; 231. a crawler belt transfer module; 232. a first driving motor; 233. a conveyor belt; 234. a limiting block; 235. t-shaped plates; 236. pushing the bulge; 24. a water spraying mechanism; 241. a water collecting frame; 242. angle modulation branched chain; 2421. an electric push rod; 2422. a rotating plate; 2423. a water outlet pipe; 2424. a mounting plate; 243. a water pump; 244. an electric control branched chain; 2441. rectangular columns; 2442. sliding counter bore; 2443. an electrical contact; 2444. an L-shaped plate; 2445. a connecting spring; 2446. a metal plate; 2447. a wire; 3. a weighting device; 31. a support frame; 32. an annular guide rail; 33. an I-shaped cylinder; 34. a second driving motor; 35. a distance adjusting mechanism; 351. a strip-shaped plate; 352. a moving through hole; 353. adjusting a screw; 354. a third driving motor; 36. a weight applying mechanism; 361. a moving block; 362. a lifting module; 363. and (5) balancing weights.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 4, a chassis strength testing apparatus for a heavy-duty car includes a placement plate 1.
Referring to fig. 1 and 7, the heavy-duty car chassis strength testing apparatus further includes a vibration device 2, the vibration device 2 is mounted at the upper end of the placement plate 1, the vibration device 2 includes two support plates 21 mounted at the upper end of the placement plate 1 in bilateral symmetry, a connecting rod 22 is mounted at the upper end of the support plates 21, vibration mechanisms 23 are mounted between opposite ends of the two connecting rods 22, and a water spraying mechanism 24 is connected between the two vibration mechanisms 23.
During specific work, the placing plate 1 is lifted through the existing lifting equipment, the placing plate 1 is lifted to a working position, and the placing plate 1 drives the vibration device 2 to move to the working position.
Referring to fig. 2 and 5, the vibration mechanism 23 includes a crawler module 231 installed between the ends of the two connecting rods 22, a first driving motor 232 installed on the crawler module 231, a conveyor belt 233 installed on the crawler module 231, a plurality of semicircular protrusions uniformly distributed on the conveyor belt 233, a semicircular recess between two adjacent semicircular protrusions, and a plurality of pushing protrusions 236 uniformly distributed on one end of the conveyor belt 233 near the supporting plate 21, which is located at the rear side.
Referring to fig. 1,2 and 5, the vibration mechanism 23 further includes a stopper 234 mounted at opposite ends of the crawler module 231, and a T-shaped plate 235 is inserted at an upper end of the stopper 234.
During specific work, the crawler belt conveying module 231 is existing crawler belt conveying equipment, the T-shaped plates 235 on the two sides are respectively in a separation state with the two limiting blocks 234 at the beginning, the automobile chassis to be tested is hung on the two conveying belts 233 through an existing crane, and then the two T-shaped plates 235 are inserted into the two limiting blocks 234, so that the front side and the rear side of the automobile chassis are limited, and the phenomenon that the automobile chassis falls off in the testing process is avoided. And then the automobile chassis is connected with the existing data acquisition system, various data generated in the testing process of the automobile chassis are monitored and recorded in real time through the data acquisition system, and the data generated in the working state of the automobile chassis before the testing is carried out are initial data.
Referring to fig. 1, 5 and 7, the water spraying mechanism 24 includes a water collecting frame 241 installed between the two crawler modules 231, two angle-adjusting branched chains 242 are symmetrically installed at the upper end of the water collecting frame 241, a water pump 243 is installed at the lower end of the water collecting frame 241, and an electric control branched chain 244 is installed at the upper end of the water collecting frame 241 near the rear side.
Referring to fig. 5, 7 and 8, the angle-adjusting branched chain 242 includes two mounting plates 2424 symmetrically mounted on the upper end of the water collecting frame 241, a rotating plate 2422 is rotatably connected between the two mounting plates 2424, a plurality of water outlet pipes 2423 uniformly distributed from front to back are mounted on the rotating plate 2422 in a penetrating manner, the lower ends of the water outlet pipes 2423 are fixedly connected and communicated with the water collecting frame 241, a rectangular plate is integrally formed at one end of the rotating plate 2422 close to the corresponding supporting plate 21, an electric push rod 2421 is hinged at the lower end of the rectangular plate, and the lower end of the electric push rod 2421 is hinged and matched with the upper end of the water collecting frame 241.
Referring to fig. 8, the lower end of the water outlet pipe 2423 is provided with a corrugated structure, and the upper end of the water outlet pipe 2423 is provided with a nozzle.
During specific operation, the water collecting frame 241 is fully filled with water at the beginning, the water pump 243 is connected with the existing water tank through the connecting pipe, after the automobile chassis is placed on the two conveying belts 233, two electric push rods 2421 are started, the electric push rods 2421 drive two rotating plates 2422 to rotate, the rotating plates 2422 drive a plurality of water outlet pipes 2423 to rotate, the corrugated structure on the water outlet pipes 2423 facilitates the rotation of the water outlet pipes 2423, and accordingly the water outlet direction of the water outlet pipes 2423 is changed, water sprayed by the water outlet pipes 2423 can reach the position where the automobile chassis turns, in the test process, water of the water outlet pipes 2423 is sprayed to the lower end of the automobile chassis, meanwhile, the automobile chassis is in a working state, data generated in the process are monitored and recorded through the existing data acquisition system, the recorded data are compared with initial data, the influence on each module of the automobile chassis is obtained under the condition of water spraying, in addition, the electric push rods 2421 can drive the water outlet pipes 2422 to rotate to other positions, and test is carried out on a plurality of positions of the symmetrical automobile chassis, so that the resistance strength of water at different positions of the automobile chassis is tested, and the accuracy of test results is improved.
Referring to fig. 5, 6 and 8, the electrically controlled branched chain 244 includes a rectangular column 2441 mounted at the upper end of the water collecting frame 241, a sliding counter bore 2442 is formed at the upper side of one end of the rectangular column 2441, which is close to the rear side crawler belt conveying module 231, two electrical contacts 2443 are symmetrically mounted on the vertical hole wall of the sliding counter bore 2442, an L-shaped plate 2444 is slidably connected in the sliding counter bore 2442, a connecting spring 2445 is mounted between the vertical section of the L-shaped plate 2444 and the rectangular column 2441, a metal plate 2446 positioned in the sliding counter bore 2442 is mounted at the horizontal section of the L-shaped plate 2444, and an arc-shaped protrusion is arranged at one end of the L-shaped plate 2444, which is close to the rear side crawler belt conveying module 231.
Referring to fig. 6 and 8, the electrical contact 2443 is connected with a wire 2447, and the wire 2447 penetrates the rectangular column 2441 and is connected with the water pump 243.
During specific operation, one of the wires 2447 is connected with the water pump 243 through the existing control switch and the power supply, and during bump test, the control switch is turned off. After the water outlet direction of the water outlet pipe 2423 is adjusted, two first driving motors 232 are started, the two first driving motors 232 drive two crawler belt conveying modules 231 to rotate, the crawler belt conveying modules 231 drive conveying belts 233 to rotate, the two conveying belts 233 drive the automobile chassis to move, semicircular bulges and semicircular hollows on the conveying belts 233 drive the automobile chassis to jolt and vibrate up and down, connection degrees among automobile chassis parts, plates and modules are observed, working data of the automobile chassis are recorded, initial data of the automobile chassis during testing are compared, and accordingly the function of testing the strength of the automobile chassis under jolt and vibrate is achieved, the rotation speed of the conveying belts 233 is controlled through the first driving motors 232, the strength of the automobile chassis under different speeds and different jolt and vibrate degrees is tested, and two T-shaped plates 235 limit the front side and the rear side of the automobile chassis, so that the automobile chassis is prevented from being separated from the two conveying belts 233 in the testing process.
If it is required to simulate the situation that an automobile passes through a hollow road section with a water pit, a control switch is turned on when the conveyor belt 233 rotates, the conveyor belt 233 positioned at the rear side drives a plurality of pushing protrusions 236 to rotate, after the pushing protrusions 236 move to the L-shaped plate 2444, arc protrusions on the L-shaped plate 2444 are pushed, the arc protrusions drive the L-shaped plate 2444 to slide towards the inside of the sliding counter bore 2442, the L-shaped plate 2444 drives the metal plate 2446 to move towards and contact with two electric contacts 2443, so that a complete electric loop is formed by a power supply, two wires 2447, the two electric contacts 2443, the metal plate 2446 and a water pump 243, water in a water tank is injected into a water collecting frame 241 by the water pump 243 after being electrified, and the water in the water collecting frame 241 is discharged onto an automobile chassis through a plurality of water outlet pipes 2423, at this moment, the L-shaped plate 2444 extrudes the connecting spring 2445, after the pushing protrusion 236 is separated from the arc protrusion, the extruded connecting spring 2445 drives the L-shaped plate 2444 to reset, the L-shaped plate 2444 drives the metal plate 2446 to be separated from the two electric contacts 2443, so that the water pump 243 is powered off, the water outlet pipe 2423 stops draining, the plurality of rotating pushing protrusions 236 are intermittently matched with the arc protrusion, the intermittent draining function of the water outlet pipe 2423 can be realized, the connection degree among automobile chassis parts, plates and all modules is observed, the working data of all modules of the automobile chassis is recorded, and the initial data of the automobile chassis is compared, so that the strength of the automobile chassis in bump vibration and water is tested.
Referring to fig. 1, 5 and 7, the chassis strength testing device for heavy-duty car further comprises a weighting device 3, the weighting device 3 is installed at the upper end of the placement plate 1, the weighting device 3 comprises a support frame 31 which is of a U-shaped structure and is installed at the upper end of the placement plate 1 with an opening facing downwards, a ring-shaped guide rail 32 is installed at the lower end of a horizontal section of the support frame 31, an I-shaped cylinder 33 is rotatably connected to the middle of the horizontal section of the support frame 31, an output shaft of a second driving motor 34 is fixedly connected to the upper end of the I-shaped cylinder 33, a second driving motor 34 is installed at the upper end of the support frame 31, a distance adjusting mechanism 35 is installed at the lower end of the I-shaped cylinder 33, and a Shi Chongji mechanism 36 is connected to the distance adjusting mechanism 35.
When the automobile chassis is tested, if the strength of the automobile chassis under different loading conditions is required to be tested, the second driving motor 34 is started according to the position of the automobile chassis required to be weighted, the second driving motor 34 drives the I-shaped cylinder 33 to rotate, the I-shaped cylinder 33 drives the distance adjusting mechanism 35 to rotate to the required position, then the distance adjusting mechanism 35 is started, the distance adjusting mechanism 35 drives the Shi Chongji mechanism 36 to move to the position above the position of the automobile chassis required to be weighted, and then the weight applying mechanism 36 and the Shi Chongji mechanism 36 are started to press the automobile chassis.
Referring to fig. 1,5 and 7, the distance adjusting mechanism 35 includes a strip plate 351 mounted at the lower end of the i-shaped cylinder 33, one end of the strip plate 351 far away from the i-shaped cylinder 33 is rotationally connected with the annular guide rail 32, a moving through hole 352 is formed in the strip plate 351, an adjusting screw 353 is rotationally connected in the moving through hole 352, an output shaft of a third driving motor 354 is mounted at one end of the adjusting screw 353 near the center of the annular guide rail 32, and the third driving motor 354 is fixedly connected with the strip plate 351.
Referring to fig. 1, 5 and 7, the Shi Chongji mechanism 36 includes a moving block 361 screwed on the adjusting screw 353, the moving block 361 is slidably matched with the moving through hole 352, a lifting module 362 is installed at the lower end of the moving block 361, a plurality of evenly distributed balancing weights 363 are installed at the lower end of the lifting module 362, and two adjacent balancing weights 363 are detachably connected.
In specific operation, according to the weight of the chassis of the automobile, the corresponding number of balancing weights 363 are selected and connected, the second driving motor 34 drives the I-shaped cylinder 33 to rotate, the I-shaped cylinder 33 drives the strip-shaped plate 351 to rotate, the strip-shaped plate 351 drives the moving block 361 to move through the adjusting screw 353, when the strip-shaped plate 351 moves to the required position, the second driving motor 34 is closed, then the third driving motor 354 is started, the third driving motor 354 drives the adjusting screw 353 to rotate, the adjusting screw 353 drives the moving block 361 to slide in the moving through hole 352, the moving block 361 drives the balancing weights 363 to move through the lifting module 362, when the balancing weights 363 move to the position above the required weighting position of the chassis of the automobile, the third driving motor 354 is closed and the lifting module 362 is started, the lifting module 362 is the existing lifting and lifting equipment, the lifting module 362 conveys corresponding balancing weights 363 downwards, so that corresponding balancing weights 363 fall onto the automobile chassis, at the moment, the uppermost balancing weights 363 are still connected with steel cables carried by the lifting module 362, but the steel cables are in an incomplete tightening state, then the two first driving motors 232 are started, the two first driving motors 232 drive the two crawler belt conveying modules 231 to rotate, the crawler belt conveying modules 231 drive the conveying belts 233 to rotate, semicircular bulges and semicircular recesses on the two conveying belts 233 drive the automobile chassis to jolt and vibrate up and down, the strength of the automobile chassis in the loading process is tested, the left side and the right side of the automobile chassis are limited by two sides of the supporting frame 31 with a U-shaped structure, the falling phenomenon of the automobile chassis in the detection process is avoided, the loading position of the automobile chassis can be adjusted randomly, and the diversity of test results is improved.
According to the requirement, only the vibration mechanism 23 can be started to perform bump test on the automobile chassis, the vibration mechanism 23 and the water spraying mechanism 24 can be matched for use, the condition that the automobile chassis passes through a pothole and is provided with a water pit road section is simulated, the strength of the automobile chassis under the condition is tested, the vibration mechanism 23 and the weight applying mechanism 36 can be matched for use, the automobile chassis is tested to perform bump test under the condition of load, and therefore the strength of the automobile chassis is tested, in addition, the vibration mechanism 23, the water spraying mechanism 24 and the Shi Chongji mechanism 36 can be matched for working simultaneously, different combinations form different test conditions, the test diversity of the automobile chassis is effectively improved, the test is more fit with reality, test data are enriched, and the accuracy of a test result is improved.
In the description of the embodiments of the present invention, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" or "a plurality" means two or more.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.
Claims (6)
1. The utility model provides a heavy-duty car chassis strength test equipment, includes places board (1), its characterized in that:
The vibrating device (2) is arranged at the upper end of the placing plate (1), the vibrating device (2) comprises two supporting plates (21) which are symmetrically arranged at the upper end of the placing plate (1), a connecting rod (22) is arranged at the upper end of each supporting plate (21), vibrating mechanisms (23) are jointly arranged between the opposite ends of the two connecting rods (22), and a water spraying mechanism (24) is connected between the two vibrating mechanisms (23);
The vibration mechanism (23) comprises a crawler belt conveying module (231) arranged between the end parts of the two connecting rods (22), a first driving motor (232) is arranged on the crawler belt conveying module (231), a conveying belt (233) is arranged on the crawler belt conveying module (231), a plurality of semicircular protrusions which are uniformly distributed are arranged on the conveying belt (233), semicircular pits are arranged between two adjacent semicircular protrusions, and a plurality of pushing protrusions (236) which are uniformly distributed are arranged at one end, close to the supporting plate (21), of the conveying belt (233) at the rear side;
The water spraying mechanism (24) comprises a water collecting frame (241) arranged between the two crawler belt conveying modules (231), two angle-adjusting branched chains (242) are symmetrically arranged at the upper end of the water collecting frame (241), a water pump (243) is arranged at the lower end of the water collecting frame (241), and an electric control branched chain (244) is arranged at the position, close to the rear side, of the upper end of the water collecting frame (241);
The electric control branched chain (244) comprises a rectangular column (2441) arranged at the upper end of the water collecting frame (241), a sliding counter bore (2442) is formed in the upper side of one end, close to the rear side crawler belt conveying module (231), of the rectangular column (2441), two electric contacts (2443) are symmetrically arranged on the vertical hole wall of the sliding counter bore (2442), an L-shaped plate (2444) is connected in a sliding mode in the sliding counter bore (2442), a connecting spring (2445) is arranged between the vertical section of the L-shaped plate (2444) and the rectangular column (2441), a metal plate (2446) positioned in the sliding counter bore (2442) is arranged on the horizontal section of the L-shaped plate (2444), and an arc-shaped bulge is arranged at one end, close to the rear side crawler belt conveying module (231), of the L-shaped plate (2444);
the electric contact (2443) is connected with a wire (2447), and the wire (2447) penetrates through the rectangular column (2441) and is connected with the water pump (243);
The weighting device (3) is installed the upper end of placing board (1), weighting device (3) is including being U type structure and opening install support frame (31) of placing board (1) upper end down, annular guide rail (32) are installed to the horizontal segment lower extreme of support frame (31), and the horizontal segment middle part rotation of support frame (31) is connected with I-shaped cylinder (33), and I-shaped cylinder (33) upper end fixedly connected with second driving motor (34)'s output shaft, second driving motor (34) are installed support frame (31) upper end, I-shaped cylinder (33) lower extreme are installed adjustable distance mechanism (35), are connected with on adjustable distance mechanism (35) and are executed heavy mechanism (36).
2. The heavy-duty car chassis strength testing apparatus of claim 1, wherein: the vibration mechanism (23) further comprises limiting blocks (234) arranged at the opposite ends of the crawler belt conveying modules (231), and T-shaped plates (235) are inserted into the upper ends of the limiting blocks (234).
3. The heavy-duty car chassis strength testing apparatus of claim 1, wherein: the adjustable distance mechanism (35) comprises a strip-shaped plate (351) arranged at the lower end of the I-shaped cylinder (33), one end, far away from the I-shaped cylinder (33), of the strip-shaped plate (351) is rotationally connected with the annular guide rail (32), a moving through hole (352) is formed in the strip-shaped plate (351), an adjusting screw (353) is rotationally connected inside the moving through hole (352), an output shaft of a third driving motor (354) is arranged at one end, close to the center of the annular guide rail (32), of the adjusting screw (353), and the third driving motor (354) is fixedly connected with the strip-shaped plate (351).
4. A heavy-duty car chassis strength testing apparatus according to claim 3, characterized in that: the weight applying mechanism (36) comprises a moving block (361) which is connected to the adjusting screw (353) in a threaded mode, the moving block (361) is in sliding fit with the moving through hole (352), a lifting module (362) is arranged at the lower end of the moving block (361), a plurality of evenly distributed balancing weights (363) are arranged at the lower end of the lifting module (362), and two adjacent balancing weights (363) are detachably connected.
5. The heavy-duty car chassis strength testing apparatus of claim 1, wherein: the angle modulation branched chain (242) is installed including fore-and-aft symmetry two mounting panels (2424) of catchment frame (241) upper end, two rotate between mounting panel (2424) and be connected with rotor plate (2422), run through on rotor plate (2422) and install a plurality of outlet pipes (2423) from front to back evenly distributed, the lower extreme and the catchment frame (241) fixed connection and the intercommunication of outlet pipe (2423), the one end integrated into one piece that rotor plate (2422) is close to corresponding backup pad (21) has the rectangular plate, the rectangular plate lower extreme articulates has electric putter (2421), the lower extreme of electric putter (2421) and catchment frame (241) upper end articulated cooperation.
6. The heavy-duty car chassis strength testing apparatus of claim 5, wherein: the lower end of the water outlet pipe (2423) is provided with a corrugated structure, and the upper end of the water outlet pipe (2423) is provided with a nozzle.
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