CN112636534B - Switched reluctance motor with power-off brake function for weaving machine - Google Patents
Switched reluctance motor with power-off brake function for weaving machine Download PDFInfo
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- CN112636534B CN112636534B CN202011464291.1A CN202011464291A CN112636534B CN 112636534 B CN112636534 B CN 112636534B CN 202011464291 A CN202011464291 A CN 202011464291A CN 112636534 B CN112636534 B CN 112636534B
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- 238000009941 weaving Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 111
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000004753 textile Substances 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
- H02K7/1023—Magnetically influenced friction brakes using electromagnets
- H02K7/1025—Magnetically influenced friction brakes using electromagnets using axial electromagnets with generally annular air gap
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/02—Details of stopping control
- H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/065—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a reluctance motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a switched reluctance motor with a power-off brake function for a weaving machine, which comprises a rotating shaft, wherein the middle part of the outer surface of the rotating shaft is inserted and movably connected with a first supporting mechanism, the rear part of the outer surface of the rotating shaft is inserted and movably connected with a second supporting mechanism, the middle rear part of the outer surface of the rotating shaft is inserted and fixedly connected with a transmission disc, the edge of the rear end of the transmission disc is fixedly connected with a brake ring, the middle part of the second supporting mechanism is inserted and fixedly connected with an electromagnetic driving mechanism, the electromagnetic driving mechanism is inserted and movably connected with the rotating shaft, and the edge of the front end of the second supporting mechanism is fixedly connected with a brake mechanism. The switched reluctance motor with the power-off brake function for the weaving machine is more reasonable and compact in structural arrangement, is more convenient for cooling the internal structure of the motor, is convenient and quick to brake and start, is convenient to connect by directly connecting the motor with the main shaft of the weaving machine due to the arrangement of the flange plate, avoids transmission loss and improves transmission efficiency.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a switched reluctance motor with a power-off brake function for a weaving machine.
Background
With the increasing of the rotating speed of the textile machine, the braking performance of the main transmission must be correspondingly improved so as to achieve the purpose of rapid and timely braking. In the prior art, a textile machine is driven by a three-phase asynchronous motor, a brake disc is used for braking, although the motor torque can be set randomly when the textile machine is started, the parking positioning precision is very low when the textile machine is braked, the parking precision is particularly important for the textile machine, and if the textile machine cannot be parked in time, a loom faucet can be in contact with a fabric in the parking buffering process, and further the fabric can be damaged.
Chinese patent application No. CN 201921635891.2 discloses a switched reluctance motor with power-off brake function for a loom, comprising: the casing, stator module and rotor subassembly, the pivot of rotor subassembly is located the outer one end of casing and links to each other with the drive shaft of loom, the pivot pass with casing inner wall fixed connection's stator module and another pot head at the pivot be equipped with the fan that carries out the cooling to the motor, the pivot is located the cover and is equipped with the outage brake equipment of dead to the dead braking of countershaft on the braking section between stator module and the fan.
The above patents suffer from the following disadvantages: 1. the internal structure of the motor is not compact, internal air is not easy to circulate, so that the cooling effect of the fan is poor, and the cooling effect of the fan on the internal structure of the motor is reduced; 2. when braking or starting, the braking or starting is inconvenient and quick; 3. the rotating shaft is not provided with a corresponding connecting mechanism, so that the connection between the rotating shaft of the motor and the main shaft of the loom is inconvenient. Therefore, a novel switched reluctance motor with a power-off brake function for a weaving machine is provided.
Disclosure of Invention
The invention mainly aims to provide a switched reluctance motor with a power-off brake function for a weaving machine, which can effectively solve the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a switched reluctance motor with a power-off braking function for a weaving machine comprises a rotating shaft, wherein a rotor is fixedly connected to the front part of the outer surface of the rotating shaft in an inserting mode, a supporting mechanism is movably connected to the middle part of the outer surface of the rotating shaft in an inserting mode, a supporting mechanism is movably connected to the rear part of the outer surface of the rotating shaft in an inserting mode, a transmission disc is fixedly connected to the middle part of the outer surface of the rotating shaft in an inserting mode, a braking ring is fixedly connected to the edge of the rear end of the transmission disc, an electromagnetic driving mechanism is fixedly connected to the middle part of the supporting mechanism in an inserting mode, the electromagnetic driving mechanism is movably connected with the rotating shaft in an inserting mode, a braking mechanism is fixedly connected to the edge of the front end of the supporting mechanism in a front mode, four braking mechanisms are distributed in an annular array mode, are fixedly connected with the electromagnetic driving mechanism, and are movably connected with the inner circumferential wall surface of the braking ring, the rear end of the rotating shaft is fixedly connected with a fan, the rear part of the outer circumferential wall surface of the first supporting mechanism and the outer circumferential wall surface of the second supporting mechanism are fixedly connected with a rear cover shell together, the front part of the outer circumferential wall surface of the first supporting mechanism is fixedly connected with a front enclosure shell, the front end of the front enclosure shell is fixedly connected with an end cover, the front end of the rotating shaft penetrates through the front end surface of the end cover and is fixedly connected with a flange plate, the rotating shaft and the front end cover are movably inserted, the inner circumferential wall surface of the front enclosure shell is fixedly connected with a stator, and the stator is enclosed outside the rotor;
the first support mechanism comprises a first support plate, a first bearing is fixedly connected to the middle of the first support plate in an inserting manner, a plurality of first through grooves are formed in the first support plate, a first connecting ring is fixedly connected to the outer circumferential wall surface of the first support plate, and the first bearing is fixedly connected with the rotating shaft in an inserting manner;
the second supporting mechanism comprises a second supporting plate, a connecting groove is formed in the middle of the second supporting plate, a second through groove is formed in the second supporting plate, a second connecting ring is fixedly connected to the outer circumferential wall surface of the second supporting plate, a connecting plate is fixedly connected to the front end of the second supporting plate, and a connecting hole is formed in the front portion of the connecting plate
As the further improvement of above-mentioned scheme, No. two lead to groove be provided with four and be annular array and distribute, the connecting plate is provided with four and is annular array and distributes, the connecting plate leads to the groove with No. two and is crisscross the distribution, the connecting plate sets up the front end outside edge at No. two supporting disks.
As a further improvement of the scheme, the electromagnetic driving mechanism comprises a first connecting disc and a second connecting disc, the second connecting disc is arranged behind the first connecting disc, the middle part of the first connecting disc is movably connected with a second bearing in an inserting way, the middle part of the second connecting disc is fixedly connected with a third bearing in an inserting way, the second bearing and the third bearing are fixedly connected with the rotating shaft in an inserting way, a first support connecting ring and a second support connecting ring are respectively and fixedly connected on the outer circumferential wall surface of the first connecting disc and the outer circumferential wall surface of the second connecting disc, the rear end of the first support connecting ring is connected with a second electromagnet in a clamping manner, the front end of the second support connecting ring is connected with a first electromagnet in a clamping manner, the front end of the second connecting disc is fixedly connected with a brake spring, the front end of the brake spring is fixedly connected with the rear end of the first connecting disc, and the second connecting disc is spliced and fixed in the connecting groove.
As a further improvement of the scheme, the first electromagnets are four and distributed in an annular array, the second electromagnets are four and distributed in an annular array, the first electromagnets correspond to the second electromagnets in position, and the braking springs are four and distributed in an annular array.
As a further improvement of the above scheme, four mounting grooves are formed in the outer circumferential wall surface of the first support connecting ring and distributed in an annular array, and the mounting grooves correspond to the second electromagnets in position.
As a further improvement of the above scheme, the brake mechanism includes a connection column and a brake block, the lower end of the connection column is fixedly connected with a guide pillar, the upper end of the brake block is provided with a first sliding groove, the bottom of the first sliding groove is provided with a second sliding groove, the lower part of the guide pillar is sequentially inserted into the first sliding groove and the second sliding groove to be slidably connected, a return spring is fixedly connected between the lower end of the connection column and the bottom of the first sliding groove together, the lower end of the brake block is slidably connected with a pushing block, the connection column is inserted and fixed in the connection hole, the lower part of the pushing block is inserted and fixed in the installation groove, and the front part of the outer surface of the brake block is movably connected with the inner circumferential wall surface of the brake ring.
As a further improvement of the above aspect, the outer surface of the brake pad is not in contact with the inner circumferential wall surface of the brake ring, and the maximum distance between the outer surface of the brake pad and the inner circumferential wall surface of the brake ring is smaller than the maximum longitudinal movement distance of the brake pad.
As a further improvement of the scheme, the second sliding groove is a rectangular through groove, and the diameter of the first sliding groove is larger than the diameter of a circumscribed circle of the second sliding groove.
As a further improvement of the scheme, the guide post is a cuboid, and the distance between the lower end face of the guide post and the lower end of the brake block is larger than the maximum distance between the outer surface of the brake block and the inner circumferential wall surface of the brake ring.
As a further improvement of the scheme, the longitudinal section of the brake block is in a right trapezoid shape, and the front part of the lower end surface of the brake block is inclined downwards.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the arrangement of the fan, the first supporting mechanism and the second supporting mechanism, when the fan rotates, air blown by the fan passes through the first supporting mechanism and the second supporting mechanism to cool the structure in the motor, so that the service performance and the service life of each structure of the motor are improved, the first supporting mechanism and the second supporting mechanism can separate and communicate the motion area of the motor rotor and the stator, the electromagnetic driving mechanism and the brake area with the motion area of the fan while playing a supporting and connecting role, the structural arrangement is more reasonable and more compact, and the cooling of the internal structure of the motor is more convenient.
2. According to the invention, through the arrangement of the brake braking mechanism, the electromagnetic driving mechanism, the brake ring and the driving ring, when the power is off, the electromagnetic mechanism does not generate magnetic force, the brake spring on the electromagnetic driving mechanism pushes the brake block to move, so that the brake block is in contact with the brake ring to generate friction force, and thus the brake braking effect can be realized.
3. In the invention, the flange plate is fixed at the front end of the motor rotating shaft, and the flange plate is directly connected with the main shaft of the loom by the method, so that the connection is convenient, the transmission loss is avoided, and the transmission efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a sectional view showing the overall construction of a switched reluctance motor with a power-off brake function for a loom according to the present invention;
FIG. 2 is an overall structural view of a switched reluctance motor with a power-off brake function for a loom according to the present invention;
FIG. 3 is a partial structural view of a switched reluctance motor with a power-off brake function for a loom according to the present invention;
FIG. 4 is a schematic structural diagram of a first supporting mechanism of a switched reluctance motor with a power-off braking function for a loom according to the present invention;
FIG. 5 is a schematic structural diagram of a second supporting mechanism of a switched reluctance motor with a power-off braking function for a loom according to the present invention;
FIG. 6 is a schematic structural diagram of an electromagnetic driving mechanism of a switched reluctance motor with a power-off brake function for a loom according to the present invention;
FIG. 7 is a schematic structural diagram of a brake braking mechanism of a switched reluctance motor with a power-off brake function for a loom according to the present invention;
FIG. 8 is an enlarged view of the structure at the position A of the switched reluctance motor with the power-off brake function for the loom according to the present invention;
FIG. 9 is a schematic view showing the connection between the brake block and the pushing block of a switched reluctance motor having a power-off brake function for a loom according to the present invention;
in the figure: 1. a rotating shaft; 2. a first supporting mechanism; 3. a second supporting mechanism; 4. a drive plate; 5. a brake ring; 6. an electromagnetic drive mechanism; 7. a brake mechanism; 8. a rotor; 9. a stator; 10. a fan; 11. a front enclosure shell; 12. a rear cover shell; 13. an end cap; 14. a flange plate; 21. a first support disc; 22. a first-order through groove; 23. a first connecting ring; 24. a first bearing; 31. a second support disc; 32. a second through groove; 33. a second connecting ring; 34. a connecting plate; 35. connecting holes; 36. connecting grooves; 61. a first connecting disc; 62. a second connecting disc; 631. a second bearing; 632. a third bearing; 64. the first support connecting ring; 65. a second support connecting ring; 66. a brake spring; 67. an electromagnet; 68. a second electromagnet; 69. mounting grooves; 71. connecting columns; 72. a brake pad; 73. a pushing block; 74. a guide post; 75. a return spring; 76. a first chute; 77. and a second sliding chute.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
A switched reluctance motor with power-off braking function for a weaving machine is shown in figures 1-5 and comprises a rotating shaft 1, wherein the front part of the outer surface of the rotating shaft 1 is fixedly connected with a rotor 8 in an inserting way, the middle part of the outer surface of the rotating shaft 1 is movably connected with a first supporting mechanism 2 in an inserting way, the rear part of the outer surface of the rotating shaft 1 is movably connected with a second supporting mechanism 3 in an inserting way, the middle rear part of the outer surface of the rotating shaft 1 is fixedly connected with a transmission disc 4 in an inserting way, the edge of the rear end of the transmission disc 4 is fixedly connected with a braking ring 5, the middle part of the second supporting mechanism 3 is fixedly connected with an electromagnetic driving mechanism 6 in an inserting way, the electromagnetic driving mechanism 6 is movably connected with the rotating shaft 1 in an inserting way, the edge of the front end of the second supporting mechanism 3 is fixedly connected with a braking mechanism 7, the braking mechanisms 7 are provided with four braking mechanisms which are distributed in an annular array, and the four braking mechanisms 7 are fixedly connected with the electromagnetic driving mechanism 6, the four brake braking mechanisms 7 are movably connected with the inner circumferential wall surface of the brake ring 5, the rear end of the rotating shaft 1 is fixedly connected with a fan 10, the rear part of the outer circumferential wall surface of the first supporting mechanism 2 and the outer circumferential wall surface of the second supporting mechanism 3 are fixedly connected with a rear cover shell 12 together, the front part of the outer circumferential wall surface of the first supporting mechanism 2 is fixedly connected with a front enclosure shell 11, the front end of the front enclosure shell 11 is fixedly connected with an end cover 13, the front end of the rotating shaft 1 penetrates through the front end surface of the end cover 13 and is fixedly connected with a flange 14, the rotating shaft 1 and the front end cover 13 are movably connected in a penetrating manner, the inner circumferential wall surface of the front enclosure shell 11 is fixedly connected with a stator 9, and the stator 9 is arranged outside the rotor 8 in a surrounding manner; the first supporting mechanism 2 comprises a first supporting plate 21, a first bearing 24 is fixedly connected to the middle of the first supporting plate 21 in an inserting mode, a plurality of first through grooves 22 are formed in the first supporting plate 21, a first connecting ring 23 is fixedly connected to the outer circumferential wall surface of the first supporting plate 21, and the first bearing 24 is fixedly connected with the rotating shaft 1 in an inserting mode; the second supporting mechanism 3 comprises a second supporting disc 31, the middle part of the second supporting disc 31 is provided with a connecting groove 36, the second supporting disc 31 is provided with a second through groove 32, the outer circumferential wall surface of the second supporting disc 31 is fixedly connected with a second connecting ring 33, the front end of the second supporting disc 31 is fixedly connected with a connecting plate 34, and the front part of the connecting plate 34 is provided with a connecting hole 35; no. two lead to groove 32 and be provided with four and be annular array and distribute, and connecting plate 34 is provided with four and is annular array and distributes, and connecting plate 34 is the staggered distribution with No. two lead to groove 32, and connecting plate 34 sets up the front end outside edge at No. two supporting discs 31.
In the specific use process of the embodiment, the spindle of the loom is fixedly connected with a transmission shaft of the loom through a flange 14, when the motor is electrically connected for use, a rotating shaft 1 of the motor drives a spindle of the loom to rotate, so that the loom carries out weaving operation, meanwhile, an electromagnetic driving mechanism 6 pulls a brake mechanism 7, so that the outer surface of the brake mechanism 7 is not contacted with the inner circumferential wall surface of a brake ring 5, the brake ring 5 is driven to rotate by the rotating shaft 1, so that the motor normally operates, when the power is cut off, the electromagnetic driving mechanism 6 pushes the brake mechanism 7 to expand outwards, so that the outer surface of the brake mechanism 7 is contacted with the inner circumferential wall surface of the brake ring 5, so as to form friction force, the rotation of the brake ring 5 is retarded, the outward expansion motion of the brake mechanism 7 is strengthened along with the increase of the pushing force of the electromagnetic driving mechanism 6, and the friction force is increased, so that the, thereby the rotating shaft 1 stops rotating rapidly and plays a role of power-off brake; in the process of rotating the rotating shaft 1, the rotating shaft 1 drives the fan 10 to rotate, so that the fan 10 blows air into the motor, the internal structure of the motor is cooled, the performance of the motor is improved, and the brake performance of the brake mechanism 7 is improved.
Example two
On the basis of the first embodiment, as shown in fig. 6-9, a switched reluctance motor with a power-off braking function for a weaving machine comprises a rotating shaft 1, wherein a rotor 8 is fixedly inserted and connected to the front part of the outer surface of the rotating shaft 1, a first supporting mechanism 2 is movably inserted and connected to the middle part of the outer surface of the rotating shaft 1, a second supporting mechanism 3 is movably inserted and connected to the rear part of the outer surface of the rotating shaft 1, a transmission disc 4 is fixedly inserted and connected to the middle rear part of the outer surface of the rotating shaft 1, a braking ring 5 is fixedly connected to the edge of the rear end of the transmission disc 4, an electromagnetic driving mechanism 6 is fixedly inserted and connected to the middle part of the second supporting mechanism 3, the electromagnetic driving mechanism 6 is movably connected to the rotating shaft 1, a braking mechanism 7 is fixedly connected to the edge of the front end of the second supporting mechanism 3, the braking mechanism 7 is provided with four braking mechanisms and distributed in an annular array, and the four braking mechanisms 7 are all fixedly connected to the electromagnetic driving mechanism 6, the four brake braking mechanisms 7 are movably connected with the inner circumferential wall surface of the brake ring 5, the rear end of the rotating shaft 1 is fixedly connected with a fan 10, the rear part of the outer circumferential wall surface of the first supporting mechanism 2 and the outer circumferential wall surface of the second supporting mechanism 3 are fixedly connected with a rear cover shell 12 together, the front part of the outer circumferential wall surface of the first supporting mechanism 2 is fixedly connected with a front enclosure shell 11, the front end of the front enclosure shell 11 is fixedly connected with an end cover 13, the front end of the rotating shaft 1 penetrates through the front end surface of the end cover 13 and is fixedly connected with a flange 14, the rotating shaft 1 and the front end cover 13 are movably connected in a penetrating manner, the inner circumferential wall surface of the front enclosure shell 11 is fixedly connected with; the first supporting mechanism 2 comprises a first supporting plate 21, a first bearing 24 is fixedly connected to the middle of the first supporting plate 21 in an inserting mode, a plurality of first through grooves 22 are formed in the first supporting plate 21, a first connecting ring 23 is fixedly connected to the outer circumferential wall surface of the first supporting plate 21, and the first bearing 24 is fixedly connected with the rotating shaft 1 in an inserting mode; the second supporting mechanism 3 comprises a second supporting disc 31, the middle part of the second supporting disc 31 is provided with a connecting groove 36, the second supporting disc 31 is provided with a second through groove 32, the outer circumferential wall surface of the second supporting disc 31 is fixedly connected with a second connecting ring 33, the front end of the second supporting disc 31 is fixedly connected with a connecting plate 34, and the front part of the connecting plate 34 is provided with a connecting hole 35; the electromagnetic driving mechanism 6 comprises a first connecting disc 61 and a second connecting disc 62, the second connecting disc 62 is arranged behind the first connecting disc 61, the middle of the first connecting disc 61 is movably connected with a second bearing 631 in an inserting mode, the middle of the second connecting disc 62 is fixedly connected with a third bearing 632 in an inserting mode, the second bearing 631 and the third bearing 632 are fixedly connected with the rotating shaft 1 in an inserting mode, a first supporting connecting ring 64 and a second supporting connecting ring 65 are fixedly connected to the outer circumferential wall surface of the first connecting disc 61 and the outer circumferential wall surface of the second connecting disc 62 respectively, the rear end of the first supporting connecting ring 64 is connected with a second electromagnet 68 in a clamping mode, the front end of the second supporting connecting ring 65 is connected with a first electromagnet 67 in a clamping mode, the front end of the second connecting disc 62 is fixedly connected with a brake spring 66, the front end of the brake spring 66 is fixedly connected with the rear end of the first connecting disc 61, and the second connecting disc 62 is fixedly connected in a connecting ring 36 in an inserting mode; the first electromagnets 67 are four and distributed in an annular array, the second electromagnets 68 are four and distributed in an annular array, the first electromagnets 67 correspond to the second electromagnets 68 in position, and the brake springs 66 are four and distributed in an annular array; the outer circumferential wall surface of the first support connecting ring 64 is provided with four mounting grooves 69 which are distributed in an annular array, and the mounting grooves 69 correspond to the second electromagnet 68; the brake braking mechanism 7 comprises a connecting column 71 and a brake block 72, wherein the lower end of the connecting column 71 is fixedly connected with a guide pillar 74, the upper end of the brake block 72 is provided with a first sliding groove 76, the bottom of the first sliding groove 76 is provided with a second sliding groove 77, the lower part of the guide pillar 74 is sequentially inserted into the first sliding groove 76 and the second sliding groove 77 in a sliding connection manner, a return spring 75 is fixedly connected between the lower end of the connecting column 71 and the bottom of the first sliding groove 76 together, the lower end of the brake block 72 is connected with a pushing block 73 in a sliding manner, the connecting column 71 is inserted and fixed in the connecting hole 35, the lower part of the pushing block 73 is inserted and fixed in the mounting groove 69, and the front part of the outer surface of the brake block 72 is movably connected with the inner circumferential wall surface of the brake ring 5; the outer surface of the brake shoe 72 is not in contact with the inner circumferential wall surface of the brake ring 5, and the maximum distance between the outer surface of the brake shoe 72 and the inner circumferential wall surface of the brake ring 5 is smaller than the maximum longitudinal movement distance of the brake shoe 72; the second sliding groove 77 is a rectangular through groove, and the diameter of the first sliding groove 76 is larger than the diameter of a circumscribed circle of the second sliding groove 77; the guide post 74 is a cuboid, and the distance from the lower end surface of the guide post 74 to the lower end of the brake block 72 is larger than the maximum distance between the outer surface of the brake block 72 and the inner circumferential wall surface of the brake ring 5; the brake shoe 72 has a right-angled trapezoidal cross-sectional shape, and the lower end surface of the brake shoe 72 is inclined downward in front.
In the specific use process of the embodiment, when the motor is used by powering, the first electromagnet 67 and the second electromagnet 68 respectively generate a magnetic field, the polarities of the two magnetic fields are opposite, the first electromagnet 67 pulls the second electromagnet 68 backwards, so that the rear end surface of the pushing block 73 and the rear end surface of the brake block 72 are on the same plane, at this time, the brake block 72 is not in contact with the brake ring 5, the brake spring 66 is in a compressed state, the return spring 75 is in a relaxed state, the state at this time is set as an initial state, when power failure occurs, the first electromagnet 67 and the second electromagnet 68 do not generate a magnetic field, at this time, the brake spring 66 pushes the first connecting disc 61 forwards, the first connecting disc 61 pushes the first support connecting ring 64 forwards, the first support connecting ring 64 drives the pushing block 73 to move forwards, in the process of pushing the pushing block 73, the brake block 72 is driven to move outwards along the guide post 74, the outer surface of the brake block 72 is contacted with the inner circumferential wall surface of the brake ring 5, thereby forming friction force, retarding the rotation of the brake ring 5, stopping the rotation of the rotating shaft 1, and playing the role of braking; in the process that the brake block 72 moves outwards, the return spring 75 is compressed, the return spring 75 accumulates elastic potential energy, when the electric power is recovered, the first electromagnet 67 and the second electromagnet 68 respectively generate a magnetic field again, the polarities of the two magnetic fields are opposite, the first electromagnet 67 pulls the second electromagnet 68 backwards, under the action of the return spring 75, the rear end face of the push block 73 and the rear end face of the brake block 72 are in the same plane again, the brake block 72 is in contact with the brake ring 5 again, and the brake spring 66 is in a compressed state to prepare for the next brake.
In the above embodiment, the brake mechanism 7, the electromagnetic driving mechanism 6, the brake ring 5 and the transmission disc 4 are arranged, so that the brake mechanism can perform a brake function when the power is off, and the brake mechanism 7 does not perform braking under the action of the electromagnetic driving mechanism 6 when the power is on and can prepare for the next braking.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A switched reluctance motor with a power-off brake function for a weaving machine comprises a rotating shaft (1), and is characterized in that: the front part of the outer surface of the rotating shaft (1) is fixedly connected with a rotor (8) in an inserting manner, the middle part of the outer surface of the rotating shaft (1) is fixedly connected with a first supporting mechanism (2) in an inserting manner, the rear part of the outer surface of the rotating shaft (1) is fixedly connected with a second supporting mechanism (3) in an inserting manner, the middle and rear parts of the outer surface of the rotating shaft (1) are fixedly connected with a transmission disc (4) in an inserting manner, the edge of the rear end of the transmission disc (4) is fixedly connected with a brake ring (5), the middle part of the second supporting mechanism (3) is fixedly connected with an electromagnetic driving mechanism (6) in an inserting manner, the electromagnetic driving mechanism (6) is movably connected with the rotating shaft (1) in an inserting manner, the edge of the front end of the second supporting mechanism (3) is fixedly connected with a brake mechanism (7), the brake mechanisms (7) are provided with four and distributed in an annular array manner, and the brake mechanisms (7) are fixedly connected with the electromagnetic driving mechanism (6), the four brake braking mechanisms (7) are movably connected with the inner circumferential wall surface of the braking ring (5), the rear end of the rotating shaft (1) is fixedly connected with a fan (10), the rear part of the outer circumferential wall surface of the first supporting mechanism (2) and the outer circumferential wall surface of the second supporting mechanism (3) are fixedly connected with a rear cover shell (12) together, the front part of the outer circumferential wall surface of the first supporting mechanism (2) is fixedly connected with a front enclosure shell (11), the front end of the front enclosure shell (11) is fixedly connected with an end cover (13), the front end of the rotating shaft (1) penetrates through the front end face of the end cover (13) and is fixedly connected with a flange plate (14), the rotating shaft (1) is movably connected with the front end cover (13) in a penetrating mode, a stator (9) is fixedly connected to the inner circumferential wall surface of the front enclosure shell (11), and the stator (9) is arranged outside the rotor (8) in an enclosing mode;
the first supporting mechanism (2) comprises a first supporting plate (21), a first bearing (24) is fixedly connected to the middle of the first supporting plate (21) in a penetrating mode, a plurality of first through grooves (22) are formed in the first supporting plate (21), a first connecting ring (23) is fixedly connected to the outer circumferential wall surface of the first supporting plate (21), and the first bearing (24) is fixedly connected with the rotating shaft (1) in a penetrating mode;
the second supporting mechanism (3) comprises a second supporting disc (31), a connecting groove (36) is formed in the middle of the second supporting disc (31), a second through groove (32) is formed in the second supporting disc (31), a second connecting ring (33) is fixedly connected to the outer circumferential wall surface of the second supporting disc (31), a connecting plate (34) is fixedly connected to the front end of the second supporting disc (31), and a connecting hole (35) is formed in the front portion of the connecting plate (34);
electromagnetic drive mechanism (6) include connection pad (61) and No. two connection pads (62), No. two connection pads (62) set up the rear at connection pad (61), the middle part of connection pad (61) all alternates swing joint has No. two bearing (631), the middle part of No. two connection pad (62) alternates No. three bearing (632) of fixedly connected with, No. two bearing (631) and No. three bearing (632) all alternate fixed connection with pivot (1), on the outer circumference wall of connection pad (61) and on the outer circumference wall of No. two connection pad (62) respectively fixedly connected with support go-between (64) and No. two support go-between (65), the rear end joint of a support go-between (64) has No. two electro-magnet (68), the front end joint of No. two support go-between (65) has an electro-magnet (67), the front end of the second connecting disc (62) is fixedly connected with a brake spring (66), the front end of the brake spring (66) is fixedly connected with the rear end of the first connecting disc (61), and the second connecting disc (62) is fixedly inserted into the connecting groove (36);
the first electromagnets (67) are four and distributed in an annular array, the second electromagnets (68) are four and distributed in an annular array, the first electromagnets (67) correspond to the second electromagnets (68), and the four braking springs (66) are arranged and distributed in an annular array;
the outer circumferential wall surface of the first support connecting ring (64) is provided with four mounting grooves (69), the mounting grooves (69) are distributed in an annular array, and the positions of the mounting grooves (69) correspond to those of the second electromagnet (68);
the brake mechanism (7) comprises a connecting column (71) and a brake block (72), the lower end of the connecting column (71) is fixedly connected with a guide column (74), the upper end of the brake block (72) is provided with a first sliding groove (76), the bottom of the first sliding groove (76) is provided with a second sliding groove (77), the lower part of the guide post (74) is sequentially inserted into the first sliding groove (76) and the second sliding groove (77) for sliding connection, a return spring (75) is fixedly connected between the lower end of the connecting column (71) and the bottom of the first sliding groove (76), the lower end of the brake block (72) is connected with a pushing block (73) in a sliding way, the connecting column (71) is inserted and fixed in the connecting hole (35), the lower part of the pushing block (73) is fixedly inserted into the mounting groove (69), and the front part of the outer surface of the brake block (72) is movably connected with the inner circumferential wall surface of the brake ring (5);
the outer surface of the brake block (72) is not contacted with the inner circumferential wall surface of the brake ring (5), and the maximum distance between the outer surface of the brake block (72) and the inner circumferential wall surface of the brake ring (5) is smaller than the maximum longitudinal moving distance of the brake block (72);
the second sliding groove (77) is a rectangular through groove, and the diameter of the first sliding groove (76) is larger than the diameter of a circumscribed circle of the second sliding groove (77);
the guide post (74) is a cuboid, and the distance from the lower end surface of the guide post (74) to the lower end of the brake block (72) is larger than the maximum distance between the outer surface of the brake block (72) and the inner circumferential wall surface of the brake ring (5);
the longitudinal section of the brake block (72) is in a right trapezoid shape, and the front part of the lower end face of the brake block (72) is inclined downwards.
2. The switched reluctance motor with power-off brake function for weaving machine according to claim 1, wherein: no. two lead to groove (32) be provided with four and be annular array and distribute, connecting plate (34) are provided with four and are annular array and distribute, connecting plate (34) are crisscross with No. two lead to groove (32) and distribute, connecting plate (34) set up the front end outside edge at No. two supporting disks (31).
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| CN202011464291.1A CN112636534B (en) | 2020-12-12 | 2020-12-12 | Switched reluctance motor with power-off brake function for weaving machine |
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| CN202011464291.1A CN112636534B (en) | 2020-12-12 | 2020-12-12 | Switched reluctance motor with power-off brake function for weaving machine |
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| CN112636534B true CN112636534B (en) | 2021-09-17 |
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Address after: 314001 2 building, Photovoltaic Science Park, 1288 Kang He road, Xiuzhou District, Jiaxing, Zhejiang. Applicant after: JIAXING University Address before: No. 118, JIAHANG Road, Nanhu District, Jiaxing City, Zhejiang Province, 314001 Applicant before: JIAXING University |
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