CN219639296U - Electromagnetic clutch of compressor - Google Patents
Electromagnetic clutch of compressor Download PDFInfo
- Publication number
- CN219639296U CN219639296U CN202320627690.8U CN202320627690U CN219639296U CN 219639296 U CN219639296 U CN 219639296U CN 202320627690 U CN202320627690 U CN 202320627690U CN 219639296 U CN219639296 U CN 219639296U
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- Prior art keywords
- compressor
- sleeve
- driving
- bushing
- electromagnetic clutch
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- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 108700041286 delta Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses an electromagnetic clutch of a compressor, which comprises a coil, a belt wheel assembly, a sucker assembly and a driving shaft extending out of an end cover of the compressor, wherein the coil is fixedly arranged on the front end surface of the end cover of the compressor, the belt wheel assembly is arranged at the front end of the end cover of the compressor through a bearing, and the sucker assembly comprises a sucker and a driving disc, and is characterized in that: the sucking disc is fixedly connected with the driving disc, and a sleeve is arranged in the middle of the driving disc; the sucker assembly further comprises a bushing, a sliding assembly and an elastic mechanism, wherein the bushing is sleeved on the driving shaft and fixedly connected with the driving shaft, a sleeve on the driving disc is sleeved on the bushing, and the sleeve is connected with the bushing through the sliding assembly and can move back and forth relative to the bushing; the elastic mechanism is arranged on the insert sleeve and is positioned between the insert sleeve and the sleeve. The electromagnetic clutch of the compressor reduces the number of parts, is convenient to assemble and can effectively improve the reliability of the electromagnetic clutch.
Description
Technical Field
The utility model relates to the technical field of compressor equipment, in particular to an electromagnetic clutch of a compressor.
Background
The electromagnetic clutch is a key component of the air conditioner compressor for the vehicle, and the operation of the compressor needs to be controlled through the electromagnetic clutch. The electromagnetic clutch consists of a coil, a belt wheel assembly and a sucker assembly, wherein the coil is fixed on the end face of the end cover of the compressor, and the belt wheel assembly is matched with the front end of the end cover of the compressor through a bearing; the sucker assembly comprises a driving disc, a sucker, an elastomer, a fixed gasket and an adjustable gasket, wherein a driving shaft of the compressor extends out of an end cover of the compressor, the driving disc is connected with the end surface of the driving shaft, the fixed gasket and the adjustable gasket are arranged between the driving disc and the driving shaft, and the sucker is connected with the driving disc through the elastomer; wherein, fixed gasket and adjustable gasket are used for adjusting the clearance delta between sucking disc and the terminal surface of band pulley in the band pulley subassembly. When the compressor is required to work, the coil is electrified, and the coil generates axial magnetic force lines to penetrate through the belt pulley and the sucker to enable the belt pulley to be magnetized to generate attraction force, so that the sucker overcomes the elastic force of the elastic body and then is contacted with the end face of the belt pulley, and when the belt pulley rotates, the driving disc can be sequentially driven to rotate through the sucker, and the driving shaft drives the compressor to operate; when the coil is powered off, the elastic body drives the sucker to restore to the original position and separate from the belt wheel, and the belt wheel idles at the moment, so that the compressor stops running.
In the structure, the clearance between the belt wheel and the sucker needs to be strictly controlled, so that the clearance is in a reasonable state; the elastic body is connected with the driving disc and the sucker, and is required to bear the effect of transmitting torque, so that the elastic body has higher elastic coefficient and higher rigidity, and if the gap is too large, the sucker can be adsorbed on the belt wheel only by overcoming higher elastic force, so that the load carrying capacity of the clutch is easily reduced, and the clutch is easy to slip under the condition of high load; if the clearance value is too small, the belt wheel is extremely easy to interfere with the sucker during idle running, so that the precision requirement of the clearance value is high. In order to ensure that the assembled clearance value delta meets the requirement, two matched sizes are detected in advance when the compressor is assembled, the thickness of the adjusting gasket is calculated according to the actually measured sizes, the adjusting gasket is assembled after being selected according to the calculated thickness (the two sizes are the distance L1 from the end face of the belt wheel to the end face of the driving shaft and the distance L2 from the end face of the sucking disc to the bottom face of the inner hole of the driving disc, and the thickness delta 2 of the adjustable gasket is calculated by combining the thickness delta 1 of the fixed gasket and the required clearance value delta between the belt wheel and the sucking disc, namely delta 2 = L1+L2+delta-delta 1). When the electromagnetic clutch is assembled by adopting the structure, the number of parts is more, the requirement on assembly precision is higher, and the reliability of the electromagnetic clutch is poorer.
Disclosure of Invention
The utility model aims to provide the electromagnetic clutch of the compressor, which reduces the number of parts, is convenient to assemble and can effectively improve the reliability of the electromagnetic clutch.
In order to solve the technical problems, the technical scheme adopted is as follows:
the utility model provides an electromagnetic clutch of compressor, includes coil, band pulley subassembly, sucking disc subassembly and certainly stretch out in the end cover of compressor the drive shaft, coil fixed mounting is on the preceding terminal surface of the end cover of compressor, and the band pulley subassembly passes through the front end of bearing mounting at the end cover of compressor, and the sucking disc subassembly includes sucking disc and driving disc, its characterized in that: the sucking disc is fixedly connected with the driving disc, and a sleeve is arranged in the middle of the driving disc; the sucker assembly further comprises a bushing, a sliding assembly and an elastic mechanism, wherein the bushing is sleeved on the driving shaft and fixedly connected with the driving shaft, a sleeve on the driving disc is sleeved on the bushing, and the sleeve is connected with the bushing through the sliding assembly and can move back and forth relative to the bushing; the elastic mechanism is arranged on the insert sleeve and is positioned between the insert sleeve and the sleeve.
When the electromagnetic clutch of the compressor works, the coil generates axial magnetic force lines to pass through the belt wheel assembly and the sucker and magnetize the belt wheel assembly and the sucker to generate suction force between the belt wheel assembly and the sucker and the driving disc, the whole sucker and the driving disc can overcome the elasticity of the elastic mechanism and slide towards the belt wheel assembly until the sucker is adsorbed on the belt wheel assembly, so that when the belt wheel assembly rotates, the belt wheel assembly can drive the driving disc to rotate through the sucker, and the driving shaft is driven to rotate through the insert sleeve, so that the compressor runs; under the condition that the coil is powered off, the sucking disc and the driving disc are far away from the belt wheel assembly under the action of the elastic mechanism, the belt wheel idles at the moment, and the compressor stops running. The electromagnetic clutch of the compressor adopts the elastic mechanism to replace the original parts such as the fixed gasket, the adjustable gasket, the elastic body, the rivet and the like, and the elastic mechanism does not need to bear the action of transmitting torque, so the elastic mechanism can adopt a structure with smaller elastic coefficient, the gap between the sucker and the belt wheel assembly can be properly enlarged, the precision requirement is lower, and simultaneously, the suction force and the friction force of the sucker and the belt wheel assembly during suction can be increased by adopting the mode, so that the whole clutch can not generate slipping phenomenon under the condition of high load.
In the preferred scheme, the elastic mechanism adopts a compression spring, the compression spring is sleeved on the insert sleeve, the rear end of the compression spring is connected with the insert sleeve, and the front end of the compression spring is connected with the rear end of the sleeve. When the coil is electrified, the whole sucker and the driving disc can overcome the elasticity of the compression spring, so that the sucker is adsorbed to the belt wheel assembly; when the coil is powered off, the sucking disc and the driving disc are far away from the belt wheel assembly under the action of the elastic force of the compression spring.
In the preferred scheme, the sliding assembly comprises a plurality of pin shafts arranged on the sleeve and a plurality of key grooves formed in the outer side wall of the insert sleeve, wherein the pin shafts are the same in number and correspond to the key grooves one by one, and the key grooves extend forwards and backwards; the sleeve on the driving disk is sleeved on the insert sleeve, and each pin shaft is respectively positioned in the corresponding key slot and can move back and forth along the key slot. When the coil is electrified, the whole sucker and the driving disc can overcome the elasticity of the elastic mechanism, and the pin shaft moves from front to back on the key slot, so that the sucker can be smoothly adsorbed on the belt wheel assembly; when the coil is powered off, the pin shaft moves forward from back to forth on the key slot under the elastic action of the elastic mechanism, so that the sucker is far away from the belt wheel assembly.
In the preferred scheme, the band pulley subassembly includes the band pulley, bearing and drive belt, the outer lane and the band pulley interference fit of bearing, the inner circle of bearing with the front end transition fit of the end cover of compressor, the drive belt cooperatees with the flank of tooth of band pulley. The external driving device drives the belt pulley to rotate through the transmission belt, and contacts with the end surface of the belt pulley when the sucker is adsorbed, and the sucker and the driving disc can rotate along with the belt pulley, so that the driving shaft is driven to rotate; when the suction cup is far away from the belt pulley, the belt pulley idles.
In general, the sucking disc and the driving disc are fixedly connected in an electric welding mode; the driving shaft is connected with the bushing through a spline and is fixed by a screw.
The utility model has the beneficial effects that: the electromagnetic clutch of the compressor reduces the number of parts, is convenient to assemble and can effectively improve the reliability of the electromagnetic clutch.
Drawings
FIG. 1 is a cross-sectional view of an electromagnetic clutch of a compressor in accordance with an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of a compressor of an embodiment of the present utility model when the electromagnetic clutch coil is energized;
FIG. 3 is an enlarged view of a portion of a compressor of an embodiment of the present utility model with the electromagnetic clutch coil de-energized;
FIG. 4 is a cross-sectional view of an embodiment of the utility model in place of a sleeve and insert.
Detailed Description
The utility model is further described with reference to the drawings and the specific embodiments below:
1-4, an electromagnetic clutch of a compressor comprises a coil 1, a belt pulley assembly 2, a suction disc assembly 3 and a driving shaft 5 extending from an end cover 4 of the compressor, wherein the coil 1 is fixedly arranged on the front end surface of the end cover 4 of the compressor, the belt pulley assembly 2 is arranged at the front end of the end cover 4 of the compressor through a bearing 202, the suction disc assembly 3 comprises a suction disc 301, a driving disc 302, a bushing 303, a sliding assembly 304 and an elastic mechanism 305, the suction disc 301 is fixedly connected with the driving disc 302, and a sleeve 3021 is arranged in the middle of the driving disc 302; the insert 303 is sleeved on the driving shaft 5 and is fixedly connected with the driving shaft 5, a sleeve 3021 on the driving disc 302 is sleeved on the insert 303, and the sleeve 3021 is connected with the insert 303 through a sliding assembly 304 and can move back and forth relative to the insert 303; the spring mechanism 305 is disposed on the insert 303 between the insert 303 and the sleeve 3021.
When the electromagnetic clutch of the compressor works, the coil 1 generates axial magnetic force lines to pass through the belt wheel assembly 2 and the suction disc 301 and magnetize the magnetic force lines under the condition of electrifying, so that suction force is generated between the belt wheel assembly 2 and the suction disc 301 and the driving disc 302, the whole suction disc 301 and the driving disc 302 can overcome the elastic force of the elastic mechanism 305 and slide towards the belt wheel assembly 2 until the suction disc 301 is adsorbed on the belt wheel assembly 2, and therefore, when the belt wheel assembly 2 rotates, the belt wheel assembly 2 can drive the driving disc 302 to rotate through the suction disc 301, and the driving shaft 5 is driven to rotate through the insert 303, so that the compressor runs; in the case of a power failure of the coil 1, the suction cup 301 and the driving disk 302 are separated from the pulley assembly 2 by the elastic mechanism 305, and at this time, the pulley 201 idles, and the compressor stops running. The electromagnetic clutch of the compressor adopts the elastic mechanism 305 to replace the original parts such as the fixed gasket, the adjustable gasket, the elastic body, the rivet and the like, and the elastic mechanism 305 does not need to bear the action of transmitting torque, so the elastic mechanism 305 can adopt a structure with smaller elastic coefficient, the gap between the sucker 301 and the belt wheel assembly 2 can be properly enlarged, the precision requirement is lower, and simultaneously, the suction force and the friction force of the sucker 301 and the belt wheel assembly 2 during suction can be increased by adopting the mode, so that the whole clutch can not generate a slipping phenomenon under the condition of high load.
The elastic mechanism 305 adopts a compression spring, the compression spring is sleeved on the insert 303, the rear end of the compression spring is connected with the insert 303, and the front end of the compression spring is connected with the rear end of the sleeve 3021. When the coil 1 is electrified, the whole of the sucker 301 and the driving disc 302 can overcome the elasticity of the compression spring, so that the sucker 301 is adsorbed to the belt wheel assembly 2; when the coil 1 is powered off, the suction cup 301 and the driving disk 302 are separated from the pulley assembly 2 by the elastic force of the compression spring.
The sliding assembly 304 comprises a plurality of pin shafts 3041 arranged on the sleeve 3021 and a plurality of key grooves 3042 formed in the outer side wall of the insert 303, wherein the pin shafts 3041 and the key grooves 3042 are the same in number and in one-to-one correspondence, and the key grooves 3042 run forwards and backwards; the sleeve 3021 of the drive plate 302 is fitted over the insert 303, and each pin 3041 is located in a corresponding key groove 3042 and is movable back and forth along the key groove 3042. When the coil 1 is electrified, the whole of the sucker 301 and the driving disc 302 can overcome the elastic force of the elastic mechanism 305, and the pin shaft 3041 moves on the key slot 3042 from front to back, so that the sucker 301 can be smoothly adsorbed on the belt wheel assembly 2; when the coil 1 is powered off, the pin 3041 moves back and forth on the key groove 3042 under the elastic force of the elastic mechanism 305, so that the suction cup 301 is far away from the pulley assembly 2.
The pulley assembly 2 comprises a pulley 201, a bearing 202 and a driving belt 203, wherein the outer ring of the bearing 202 is in interference fit with the pulley 201, the inner ring of the bearing 202 is in transition fit with the front end of the end cover 4 of the compressor, and the driving belt 203 is matched with the tooth surface of the pulley 201. The external driving device drives the belt pulley 201 to rotate through the transmission belt 203, when the sucker 301 is adsorbed, the sucker 301 contacts with the end surface of the belt pulley 201, and the sucker 301 and the driving disc 302 can rotate along with the belt pulley 201, so that the driving shaft 5 is driven to rotate; when the suction cup 301 is far from the pulley 201, the pulley 201 idles.
The sucker 301 and the driving disk 302 are fixedly connected in an electric welding mode; the drive shaft 5 is splined to the insert 303 and is secured with screws.
Claims (4)
1. The utility model provides an electromagnetic clutch of compressor, includes coil, band pulley subassembly, sucking disc subassembly and certainly stretch out in the end cover of compressor the drive shaft, coil fixed mounting is on the preceding terminal surface of the end cover of compressor, and the band pulley subassembly passes through the front end of bearing mounting at the end cover of compressor, and the sucking disc subassembly includes sucking disc and driving disc, its characterized in that: the sucking disc is fixedly connected with the driving disc, and a sleeve is arranged in the middle of the driving disc; the sucker assembly further comprises a bushing, a sliding assembly and an elastic mechanism, wherein the bushing is sleeved on the driving shaft and fixedly connected with the driving shaft, a sleeve on the driving disc is sleeved on the bushing, and the sleeve is connected with the bushing through the sliding assembly and can move back and forth relative to the bushing; the elastic mechanism is arranged on the insert sleeve and is positioned between the insert sleeve and the sleeve.
2. An electromagnetic clutch for a compressor as set forth in claim 1, wherein: the elastic mechanism adopts a compression spring which is sleeved on the insert sleeve, the rear end of the compression spring is connected with the insert sleeve, and the front end of the compression spring is connected with the rear end of the sleeve.
3. An electromagnetic clutch for a compressor as set forth in claim 1, wherein: the sliding assembly comprises a plurality of pin shafts arranged on the sleeve and a plurality of key grooves formed in the outer side wall of the insert sleeve, the pin shafts and the key grooves are the same in number and correspond to each other one by one, and the key grooves extend forwards and backwards; the sleeve on the driving disk is sleeved on the insert sleeve, and each pin shaft is respectively positioned in the corresponding key slot and can move back and forth along the key slot.
4. An electromagnetic clutch for a compressor as set forth in claim 1, wherein: the belt wheel assembly comprises a belt wheel, the bearing and a driving belt, the outer ring of the bearing is in interference fit with the belt wheel, the inner ring of the bearing is in transition fit with the front end of the end cover of the compressor, and the driving belt is matched with the tooth surface of the belt wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320627690.8U CN219639296U (en) | 2023-03-28 | 2023-03-28 | Electromagnetic clutch of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320627690.8U CN219639296U (en) | 2023-03-28 | 2023-03-28 | Electromagnetic clutch of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219639296U true CN219639296U (en) | 2023-09-05 |
Family
ID=87821686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320627690.8U Active CN219639296U (en) | 2023-03-28 | 2023-03-28 | Electromagnetic clutch of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219639296U (en) |
-
2023
- 2023-03-28 CN CN202320627690.8U patent/CN219639296U/en active Active
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| GR01 | Patent grant |