CN215567773U - Electromagnetic clutch belt pulley structure easy to maintain - Google Patents
Electromagnetic clutch belt pulley structure easy to maintain Download PDFInfo
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- CN215567773U CN215567773U CN202121946840.9U CN202121946840U CN215567773U CN 215567773 U CN215567773 U CN 215567773U CN 202121946840 U CN202121946840 U CN 202121946840U CN 215567773 U CN215567773 U CN 215567773U
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- belt pulley
- dust cover
- spring piece
- main shaft
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Abstract
The utility model discloses an electromagnetic clutch belt pulley structure easy to maintain. The novel electric fan comprises a main shaft, a first bearing is sleeved on the main shaft, a shell is sleeved on the first bearing, a coil assembly is arranged in the shell, a belt pulley is fixedly connected to the rear of the shell, the belt pulley is sleeved with the main shaft, a dust cover is connected to the belt pulley, a friction plate is arranged in the dust cover, a driving plate, a spring piece and a blowing device are arranged in the dust cover, the friction plate is arranged at the rear of the belt pulley and corresponds to the belt pulley, the driving plate is arranged at the rear of the friction plate and is fixedly connected with the friction plate, the driving plate is rotatably connected with the main shaft, the spring piece is arranged at the rear of the driving plate and is fixedly connected with the driving plate, the blowing device is arranged at the rear of the spring piece, the blowing device is fixedly connected with the side wall of the dust cover, and the dust cover is provided with a plurality of through holes penetrating through the upper surface and the lower surface. The utility model has the beneficial effects that: the dust cover is prevented from being filled with external dust and debris, and normal work of parts is ensured; reduce belt pulley lateral wall adhesion dust, easily maintain electromagnetic clutch.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to an electromagnetic clutch belt pulley structure easy to maintain.
Background
The electromagnetic clutch generally includes a coil assembly, a belt pulley and a driving disc, and the working process is as follows: when the coil assembly is electrified, the coil assembly generates magnetic force to attract the driving disc, so that the clutch is combined to drive a driven part (such as an air conditioner compressor) to work. When the roughness of the surface of the belt pulley is insufficient, the belt is easy to slide in the using process, and the normal use of the belt pulley is influenced. Meanwhile, if the belt pulley has no dustproof structure in the working process, once dust or debris enters parts, the normal operation of the belt pulley is affected, the belt pulley needs to be frequently disassembled, and the maintenance is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electromagnetic clutch belt pulley structure which is provided with a dustproof structure and can be maintained easily, and the defects that the normal operation of parts is affected and the parts are not easy to maintain because the belt pulley of the electromagnetic clutch in the prior art has no dustproof structure are overcome.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an easy-to-maintain electromagnetic clutch belt pulley structure comprises a main shaft, a first bearing is sleeved on the main shaft, the first bearing is sleeved with a shell, a coil assembly is arranged in the shell, a belt pulley is fixedly connected to the rear of the shell, the belt pulley is sleeved with the main shaft and is connected with a dust cover, a friction plate, a driving disc, a spring leaf and a blowing device are arranged in the dust cover, the friction plate is sleeved with the main shaft, the friction plate is positioned behind the belt pulley and corresponds to the belt pulley, the driving disk is positioned behind the friction plate and fixedly connected with the friction plate, the driving disk is rotationally connected with the main shaft, the spring piece is positioned behind the driving disc and is fixedly connected with the driving disc, the blowing device is positioned behind the spring piece, the blowing device is fixedly connected with the side wall of the dust cover, and the dust cover is provided with a plurality of through holes penetrating through the upper surface and the lower surface.
The shell connected with the first bearing is installed on the main shaft, the belt pulley is fixedly connected with the shell, when the belt pulley is connected with an engine through an external belt, the belt pulley is driven to rotate under the action of the engine, the belt pulley drives the coil assembly in the shell to rotate, when the coil assembly is powered on, a magnetic field generated by the coil assembly enables the spring piece to be tightly attached to the side wall of the driving disc so as to attract the driving disc, the friction plate fixedly connected with the driving disc is tightly attached to the side wall of the belt pulley at the moment, the driving disc is driven to rotate by the rotation of the belt pulley, the main shaft is driven to rotate by the rotation of the driving disc, and the main shaft is connected with an external automobile air conditioner compressor so as to enable the compressor to normally work. When the coil assembly is not electrified, the spring piece drives the driving disc to move towards the direction far away from the belt pulley, a gap is reserved between the belt pulley and the friction plate, the belt pulley idles, the driving disc and the main shaft do not rotate at the moment, the main shaft is connected with an external automobile air conditioner compressor, and the compressor does not work. The dust cover connected with the belt pulley can prevent dust or debris in the external environment from entering the connection part of the main shaft, the friction plate and the driving disc to influence the normal work of the driving disc and the friction plate. The heat that produces in not only can detaching the dust cover through blast apparatus in the dust cover, can avoid external dust or piece to enter into the dust cover simultaneously, and heat or dust, piece are discharged to the external world from the through-hole, through separating dust cover and belt pulley, can overhaul the spare part in the dust cover, are convenient for maintain electromagnetic clutch's normal use.
Preferably, the blowing device comprises fan blades, a rotating shaft and a motor, the motor is arranged outside the dust cover and fixedly connected with the outer wall of the dust cover, the motor is connected with one end of the rotating shaft, the rotating shaft penetrates through the side wall of the dust cover and then is connected with the fan blades, the fan blades are located inside the dust cover and are provided with a plurality of parts, the fan blades are uniformly distributed with the center of the rotating shaft, the other end of the rotating shaft is connected with a connecting rod, the other end of the connecting rod is connected with a baffle, the section length of the baffle is greater than the diameter of a main shaft, the sum of the diameter of the rotating shaft and the length of the fan blades is greater than the section length of the baffle, and the central axis of the baffle, the central axis of the rotating shaft and the central axis of the main shaft are coincided. When the electromagnetic clutch is worn seriously after being used for a long time and needs to be replaced by a new part, the part is replaced by separating the dust cover from the belt pulley, so that the electromagnetic clutch is easy to maintain; the motor control pivot rotates to the pivot drives the fan blade and rotates, blows the heat in the dust cover to the external world, and the wind in the dust cover can avoid external dust or piece to enter into the dust cover simultaneously, ensures that spare part in the dust cover normally works.
Preferably, the spring piece comprises a first spring piece and a second spring piece, the first spring piece and the second spring piece are integrally connected, two ends of the second spring piece are respectively connected with the first spring piece, the second spring piece is arched, the first spring piece is fixedly connected with a driving disc through a screw, the side wall of the driving disc is fixedly connected with a buffer piece, and the second spring piece corresponds to the buffer piece. When the coil assembly is powered off, the spring piece moves in a direction deviating from the belt pulley, a gap is reserved between the belt pulley and the friction plate, the belt pulley idles, the driving disc and the main shaft do not rotate at the moment, the main shaft is connected with an external automobile air conditioner compressor, and the compressor does not work; when the coil assembly is electrified, the first spring piece and the second spring piece are attracted, the first spring piece is firstly contacted with the driving disc when the first spring piece approaches to the direction of the belt pulley, and the second arched spring piece is firstly contacted with the buffer sheet when the second spring piece approaches to the belt pulley, so that the direct contact between the second spring piece and the driving disc is avoided, the service life of the second spring piece can be prolonged, and meanwhile, the noise in the working process can be reduced.
Preferably, the belt pulley is annular, the periphery of the belt pulley is provided with a protrusion with a saw-toothed section, one end of the protrusion is fixedly connected with the belt pulley, the other end of the protrusion is equal to the periphery of the belt pulley in height, the side wall of the driving disc is connected with a pressure spring, and the other end of the pressure spring is suspended and corresponds to the side wall of the belt pulley. When the external generator is connected with the belt pulley through the belt, the belt is in contact with the protrusions arranged on the periphery of the belt pulley, so that the friction force between the belt and the belt pulley can be increased, and the normal work of the belt pulley is facilitated; when the coil assembly is powered on and powered off, the magnetic field generated by the coil assembly or the magnetic field-free state enables the driving disc to drive the friction plate to be close to or far away from the belt pulley direction, and when the driving disc drives the friction plate to move towards the belt pulley direction, the pressure spring can buffer the impact force between the friction plate and the belt pulley, so that the service lives of the friction plate and the belt pulley are prolonged.
Preferably, the side wall of the belt pulley is connected with a connecting piece, one end of the connecting piece is in threaded connection with the shell, and the other end of the connecting piece is in threaded connection with the side wall of the belt pulley. The belt pulley drives the shell to rotate through the connecting piece, dust adhered to the side wall of the belt pulley can be reduced, and normal work of the belt pulley is facilitated.
Preferably, the cross section of the through hole is in a circular truncated cone shape, one end of the small opening of the through hole faces the outer portion of the dust cover, and one end of the large opening of the through hole faces the inner portion of the dust cover. When belt pulley working process and driving-disc drive friction disc and belt pulley contact drive driving-disc and main shaft rotate together, the heat that the working process produced can be under the blast apparatus's in the dust cover effect, blow the heat in the dust cover to the external environment in, avoid the too high spare part in the damage dust cover of heat, through-hole macrostoma one end is inside the dust cover, through-hole osculum one end is outside the dust cover, thereby blast apparatus can be to the outside transport of heat in the dust cover fast, be favorable to electromagnetic clutch's normal work.
The utility model has the beneficial effects that: the heat in the dust cover is blown to the outside, so that external dust or debris is prevented from entering the dust cover, and the parts are damaged due to overhigh heat in the dust cover, and the normal work of the parts is ensured; the service life of the second spring piece, the friction plate and the belt pulley is prolonged, and the noise in the working process is reduced; reduce belt pulley lateral wall adhesion dust, easily maintain electromagnetic clutch.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is an enlarged view at B in fig. 1.
In the figure: 1. the novel motor comprises a main shaft, 2 parts of a first bearing, 3 parts of a shell, 4 parts of a coil assembly, 5 parts of a belt pulley, 6 parts of a dust cover, 7 parts of a friction plate, 8 parts of a driving disc, 9 parts of a spring leaf, 10 parts of a blowing device, 11 parts of a through hole, 12 parts of a fan blade, 13 parts of a rotating shaft, 14 parts of a motor, 15 parts of a connecting rod, 16 parts of a baffle plate, 17 parts of a first spring leaf, 18 parts of a second spring leaf, 19 parts of a screw, 20 parts of a buffer plate, 21 parts of a bulge, 22 parts of a pressure spring and 23 parts of a connecting piece.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
Example 1:
as shown in fig. 1 and 2, an electromagnetic clutch pulley structure easy to maintain comprises a main shaft 1, a first bearing 2 is sleeved on the main shaft 1, a housing 3 is sleeved on the first bearing 2, a coil assembly 4 is arranged in the housing 3, a belt pulley 5 is fixedly connected to the rear of the housing 3, the belt pulley 5 is sleeved with the main shaft 1, a dust cover 6 is connected to the belt pulley 5, a friction plate 7, a driving disc 8, a spring leaf 9 and a blowing device 10 are arranged in the dust cover 6, the friction plate 7 is sleeved with the main shaft 1, the friction plate 7 is arranged behind the belt pulley 5 and corresponds to the belt pulley 5, the driving disc 8 is arranged behind the friction plate 7 and is fixedly connected to the friction plate 7, the driving disc 8 is rotatably connected to the main shaft 1, the spring leaf 9 is arranged behind the driving disc 8 and is fixedly connected to the driving disc 8, the blowing device 10 is arranged behind the spring leaf 9, and the blowing device 10 is fixedly connected to the side wall of the dust cover 6, the dust cover 6 is provided with a plurality of through holes 11 penetrating the upper and lower surfaces.
As shown in fig. 1 and 2, the blowing device 10 includes a fan blade 12, a rotating shaft 13, and a motor 14, the motor 14 is disposed outside the dust cover 6 and fixedly connected to an outer wall of the dust cover 6, the motor 14 is connected to one end of the rotating shaft 13, the rotating shaft 13 penetrates through a side wall of the dust cover 6 and is connected to the fan blade 12, the fan blade 12 is located inside the dust cover 6, the fan blade 12 is provided with a plurality of blades, the fan blade 12 is uniformly distributed in the center of the rotating shaft 13, the other end of the rotating shaft 13 is connected to a connecting rod 15, the other end of the connecting rod 15 is connected to a baffle 16, the sectional length of the baffle 16 is greater than the diameter of the spindle 1, the sum of the diameter of the rotating shaft 13 and the length of the fan blade 12 is greater than the sectional length of the baffle 16, and the central axis of the baffle 16, the central axis of the rotating shaft 13 and the central axis of the spindle 1 are all coincident.
As shown in fig. 1 and 3, the spring plate 9 includes a first spring plate 17 and a second spring plate 18, the first spring plate 17 and the second spring plate 18 are integrally connected, two ends of the second spring plate 18 are respectively connected with the first spring plate 17, the second spring plate 18 is arched, the first spring plate 17 is fixedly connected with the driving disc 8 through a screw 19, the side wall of the driving disc 8 is fixedly connected with a buffer plate 20, and the second spring plate 18 corresponds to the buffer plate 20.
As shown in fig. 1, the belt pulley 5 is annular, the periphery of the belt pulley 5 is provided with a protrusion 21 with a saw-toothed cross section, one end of the protrusion 21 is fixedly connected with the belt pulley 5, the other end of the protrusion 21 has the same height as the periphery of the belt pulley 5, the side wall of the driving disc 8 is connected with a pressure spring 22, and the other end of the pressure spring 22 is suspended and corresponds to the side wall of the belt pulley 5. The side wall of the belt pulley 5 is connected with a connecting piece 23, one end of the connecting piece 23 is in threaded connection with the shell 3, and the other end of the connecting piece 23 is in threaded connection with the side wall of the belt pulley 5.
As shown in fig. 1 and 2, the cross-sectional shape of the through-hole 11 is a truncated cone, the small-mouth end of the through-hole 11 faces the outside of the dust cover 6, and the large-mouth end of the through-hole 11 faces the inside of the dust cover 6.
The use process comprises the following steps: the shell 3 is firstly installed on the main shaft 1 through the first bearing 2, the belt pulley 5 is fixedly connected with the shell 3 through the connecting piece 23, when the belt pulley 5 is connected with an engine through an external belt, the belt pulley 5 is driven to rotate under the action of the engine, the belt pulley 5 drives the coil assembly 4 in the shell 3 to rotate, when the coil assembly 4 is electrified, a magnetic field generated by the coil assembly 4 enables the spring piece 9 to be tightly attached to the direction of the driving disc 8 so as to attract the driving disc 8, at the moment, the friction plate 7 fixedly connected with the driving disc 8 is tightly attached to the side wall of the belt pulley 5, the driving disc 8 is driven to rotate by the rotation of the belt pulley 5, the main shaft 1 is driven to rotate by the rotation of the driving disc 8, the main shaft 1 is connected with an external automobile air conditioner compressor, and the compressor can normally work. When the coil assembly 4 is not electrified, the spring piece 9 drives the driving disc 8 to move towards the direction far away from the belt pulley 5, a gap is reserved between the belt pulley 5 and the friction plate 7 at the moment, the belt pulley 5 idles, the driving disc 8 and the main shaft 1 do not rotate at the moment, the main shaft 1 is connected with an external automobile air conditioner compressor, and the compressor does not work. The dust cover 6 connected with the belt pulley 5 can prevent dust or debris in the external environment from entering the connection part of the main shaft 1, the friction plate 7 and the driving disc 8 to influence the normal work of the driving disc 8 and the friction plate 7.
Claims (6)
1. The utility model provides an easy electromagnetic clutch pulley structure of maintaining which characterized by: comprises a main shaft (1), a first bearing (2) is sleeved on the main shaft (1), a shell (3) is sleeved on the first bearing (2), a coil assembly (4) is arranged in the shell (3), a belt pulley (5) is fixedly connected with the rear of the shell (3), the belt pulley (5) is sleeved with the main shaft (1), the belt pulley (5) is connected with a dust cover (6), a friction plate (7), a driving disc (8), a spring leaf (9) and a blowing device (10) are arranged in the dust cover (6), the friction plate (7) is sleeved with the main shaft (1), the friction plate (7) is positioned at the rear of the belt pulley (5) and corresponds to the belt pulley (5), the driving disc (8) is positioned at the rear of the friction plate (7) and is fixedly connected with the friction plate (7), the driving disc (8) is rotatably connected with the main shaft (1), the spring leaf (9) is positioned at the rear of the driving disc (8) and is fixedly connected with the driving disc (8), the dust cover is characterized in that the blowing device (10) is located behind the spring piece (9), the blowing device (10) is fixedly connected with the side wall of the dust cover (6), and the dust cover (6) is provided with a plurality of through holes (11) penetrating through the upper surface and the lower surface.
2. An easy to maintain electromagnetic clutch pulley structure as claimed in claim 1, wherein: blowing device (10) include fan blade (12), pivot (13), motor (14), dust cover (6) outside and with dust cover (6) outer wall fixed connection are arranged in to motor (14), the one end of pivot (13) is connected in motor (14), connect fan blade (12) after dust cover (6) lateral wall is passed in pivot (13), fan blade (12) are located inside dust cover (6), fan blade (12) have a plurality of, fan blade (12) are with the center evenly distributed of pivot (13), the pivot (13) other end is connected with connecting rod (15), the other end of connecting rod (15) is connected with baffle (16), the cross-sectional length of baffle (16) is greater than main shaft (1) diameter, the diameter of pivot (13) and the length sum of fan blade (12) are greater than the cross-sectional length of baffle (16), the axis of baffle (16) and the axis of pivot (13), The central axes of the main shafts (1) are overlapped.
3. An easy-to-maintain electromagnetic clutch pulley structure as claimed in claim 1 or 2, characterized in that: the spring piece (9) comprises a first spring piece (17) and a second spring piece (18), the first spring piece (17) and the second spring piece (18) are integrally connected, the two ends of the second spring piece (18) are respectively connected with the first spring piece (17), the second spring piece (18) is arched, the first spring piece (17) is fixedly connected with the driving disc (8) through a screw (19) arranged on the first spring piece, the side wall of the driving disc (8) is fixedly connected with the buffer piece (20), and the second spring piece (18) corresponds to the buffer piece (20).
4. An easy to maintain electromagnetic clutch pulley structure as claimed in claim 3, wherein: belt pulley (5) shape is the annular, belt pulley (5) periphery is equipped with cross sectional shape and is protruding (21) of cockscomb structure, protruding (21) one end and belt pulley (5) fixed connection, protruding (21) other end and belt pulley (5) periphery are high equally, driving-disc (8) lateral wall is connected with pressure spring (22), pressure spring (22) other end is unsettled and corresponding with belt pulley (5) lateral wall.
5. An easy to maintain electromagnetic clutch pulley structure as set forth in claim 4, wherein: the side wall of the belt pulley (5) is connected with a connecting piece (23), one end of the connecting piece (23) is in threaded connection with the shell (3), and the other end of the connecting piece (23) is in threaded connection with the side wall of the belt pulley (5).
6. An easy to maintain electromagnetic clutch pulley structure as claimed in claim 1, wherein: the cross section of the through hole (11) is in a circular truncated cone shape, one end of a small opening of the through hole (11) faces the outer portion of the dust cover (6), and one end of a large opening of the through hole (11) faces the inner portion of the dust cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121946840.9U CN215567773U (en) | 2021-08-19 | 2021-08-19 | Electromagnetic clutch belt pulley structure easy to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121946840.9U CN215567773U (en) | 2021-08-19 | 2021-08-19 | Electromagnetic clutch belt pulley structure easy to maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215567773U true CN215567773U (en) | 2022-01-18 |
Family
ID=79839159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121946840.9U Active CN215567773U (en) | 2021-08-19 | 2021-08-19 | Electromagnetic clutch belt pulley structure easy to maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215567773U (en) |
-
2021
- 2021-08-19 CN CN202121946840.9U patent/CN215567773U/en active Active
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