CN220365886U

CN220365886U - Clutch and automobile

Info

Publication number: CN220365886U
Application number: CN202321811670.2U
Authority: CN
Inventors: 岳怡宁; 后亮; 郭明强
Original assignee: Sichuan Iat New Energy Automobile Co ltd
Current assignee: Sichuan Iat New Energy Automobile Co ltd
Priority date: 2023-07-11
Filing date: 2023-07-11
Publication date: 2024-01-19
Anticipated expiration: 2033-07-11

Abstract

The utility model relates to the technical field of electromagnetic clutches, in particular to a clutch and an automobile. The clutch provided by the utility model comprises: the magnetic piece, the first meshing disk, the second meshing disk and the main shaft; the first meshing disc and the second meshing disc are sleeved on the main shaft at intervals, the first meshing disc and the main shaft are fixed in the axial direction and the circumferential direction, and the second meshing disc and the main shaft can axially slide and circumferentially rotate; the magnetic piece is arranged on the periphery of the first meshing disk, and the second meshing disk is made of magnetic materials; the magnetic member is capable of generating magnetic force and driving the second engagement plate to move in a direction approaching the first engagement plate and to be combined with the first engagement plate. Because the second meshing disk is magnetic material, when the assembly, can set up the magnetic part in the periphery of first meshing disk, make its structure simpler to the axial dimension is smaller than current clutch, makes things convenient for the clutch to arrange on user equipment more.

Description

Clutch and automobile

Technical Field

The utility model relates to the technical field of electromagnetic clutches, in particular to a clutch and an automobile.

Background

Electromagnetic clutches are also called electromagnetic couplings for transmitting torque or power of an actuator from a drive shaft side to a driven shaft side.

Electromagnetic clutches generally include a main shaft, an electromagnetic coil, a driving disk, a driven disk, a push ring, and other structures. The driving disc, the driven disc and the pushing ring are all sleeved on the main shaft, and the electromagnetic coil, the driving disc, the pushing ring and the driven disc are sequentially arranged along the axial direction of the main shaft. When the electromagnetic driving device is used, the electromagnetic coil is driven to move the push ring, so that the driving disc moves towards the driven disc and is meshed with the driven disc.

However, the electromagnetic clutch is over-sized in the axial direction due to the fact that the electromagnetic coil, the driving disc, the pushing ring and the driven disc are sequentially arranged on the main shaft, and the pushing ring is complex in structure, so that the electromagnetic clutch is over-sized in parts, complex in overall structure and over-high in cost.

Disclosure of Invention

The utility model solves the problems that: the existing electromagnetic clutch has oversized axial dimension, complex structure and higher cost.

(II) technical scheme

In order to solve the above technical problems, an embodiment of an aspect of the present utility model provides a clutch, including: the magnetic piece, the first meshing disk, the second meshing disk and the main shaft;

the first meshing disc and the second meshing disc are sleeved on the main shaft at intervals, the first meshing disc and the main shaft are fixed in the axial direction and the circumferential direction, and the second meshing disc and the main shaft can axially slide and circumferentially rotate;

the magnetic piece is arranged on the periphery of the first meshing disk, and the second meshing disk is made of magnetic materials; the magnetic member is capable of generating magnetic force and driving the second engagement plate to move in a direction approaching to the first engagement plate and to be combined with the first engagement plate.

Further, a first limiting piece and a second limiting piece are arranged on the main shaft at intervals;

the first meshing disk is located between the first limiting piece and the second limiting piece, and two ends of the first meshing disk are respectively abutted against the first limiting piece and the second limiting piece.

Further, the first limiting piece is a shaft shoulder on the main shaft, or the first limiting piece is a limiting snap ring arranged on the main shaft;

the second limiting piece is a shaft shoulder on the main shaft, or the second limiting piece is a limiting snap ring arranged on the main shaft.

Further, the first engagement plate and the second engagement plate are both jaw plates.

Further, the magnetic element is an electromagnetic coil.

Further, the device also comprises a reset piece;

the reset piece is used for exerting a force on the second meshing disk, wherein the force moves away from the first meshing disk.

Further, the reset piece is a spring.

Further, the spring is sleeved on the main shaft, and the spring is located between the first meshing disc and the second meshing disc.

Further, the device also comprises a first gear;

the first gear is sleeved on the main shaft, and the first gear and the main shaft are axially fixed and circumferentially rotated;

the first gear is provided with a hub, a rim and a web, and the first meshing disc is sleeved on the hub, axially slides with the hub and is circumferentially fixed;

the first engagement disc is located in a space defined by the hub, the rim and the web.

According to another aspect of the utility model, an embodiment of an automobile is provided, which comprises the clutch according to any one of the embodiments.

The utility model has the beneficial effects that:

the present utility model provides a clutch, comprising: the magnetic piece, the first meshing disk, the second meshing disk and the main shaft; the first meshing disc and the second meshing disc are sleeved on the main shaft at intervals, the first meshing disc and the main shaft are fixed in the axial direction and the circumferential direction, and the second meshing disc and the main shaft can axially slide and circumferentially rotate; the magnetic piece is arranged on the periphery of the first meshing disk, and the second meshing disk is made of magnetic materials; the magnetic member is capable of generating magnetic force and driving the second engagement plate to move in a direction approaching to the first engagement plate and to be combined with the first engagement plate.

The working principle of the clutch is as follows: the initial state is set such that the first engagement disc and the second engagement disc are separated. When the first meshing disk and the second meshing disk are required to be connected, the magnetic piece starts to generate magnetic force, and the second meshing disk starts to slide on the main shaft towards the first meshing disk under the action of the magnetic force until the second meshing disk is connected with the first meshing disk due to the fact that the second meshing disk is made of magnetic materials.

Because the second meshing disk is magnetic material, when assembling, can set up the magnetic part in the periphery of first meshing disk, compare in prior art, abandoned the push ring structure, make its structure simpler, simultaneously because need not to set up the push ring to set up the magnetic part in the periphery of first meshing disk, make the axial dimension of clutch compare in current clutch littleer, make things convenient for the clutch to arrange on user equipment more.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a clutch according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a clutch according to an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a clutch provided by an embodiment of the present utility model.

Icon: 1-a magnetic member; 2-a first engagement disc; 3-a second engagement plate; 4-a main shaft; 51-a first limiting piece; 52-a second limiting piece; 6-a reset piece; 7-a first gear.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 3, one embodiment of the present utility model provides a clutch including: a magnetic member 1, a first engagement disc 2, a second engagement disc 3 and a spindle 4. The first meshing disc 2 and the second meshing disc 3 are sleeved on the main shaft 4 at intervals, the first meshing disc 2 and the main shaft 4 are fixed in the axial direction and the circumferential direction, and the second meshing disc 3 and the main shaft 4 can axially slide and circumferentially rotate. The magnetic piece 1 is arranged on the periphery of the first meshing disk 2, and the second meshing disk 3 is made of magnetic materials; the magnetic member 1 can magnetically drive the second engagement plate 3 to move in a direction approaching the first engagement plate 2 and is combined with the first engagement plate 2.

The clutch provided by the embodiment is used for controlling the on-off of torque transmission. The clutch comprises a first engagement disc 2, a second engagement disc 3 and a main shaft 4. The first meshing disk 2 and the second meshing disk 3 are sleeved on the main shaft 4, and the first meshing disk 2 and the second meshing disk 3 are arranged at intervals. The first engagement disc 2 is fixed to the spindle 4 both axially and circumferentially, i.e. the first engagement disc 2 cannot slide on the spindle 4 in the axial direction of the spindle 4 and cannot rotate on the spindle 4. The second meshing disk 3 is axially slidable and rotatable in the circumferential direction with respect to the spindle 4, that is, the second meshing disk 3 is slidable in the axial direction of the spindle 4 on the spindle 4 and rotatable on the spindle 4.

In the present embodiment, since the first engagement plate 2 and the second engagement plate 3 are provided at a distance and the second engagement plate is capable of sliding on the spindle, the clutch is capable of transmitting torque when the first engagement plate 2 is engaged with the second engagement plate 3, and torque is no longer transmitted when the first engagement plate 2 and the second engagement plate 3 are disengaged.

In this embodiment, the clutch further includes a magnetic member 1, where the magnetic member 1 is disposed on the periphery of the first engagement disc 2, and the magnetic member 1 is capable of generating magnetic force, and the second engagement disc 3 is made of magnetic material. When the magnetic member 1 generates magnetic force, the second engagement disk 3 slides in the direction of the magnetic member 1 by the magnetic force of the magnetic member 1 until it engages with the first engagement disk 2 located in the magnetic member 1. When the magnetic member 1 no longer generates magnetic force, the second meshing disk 3 is separated from the first meshing disk 2 by its own weight or other external force.

In this embodiment, the magnetic member 1 has a frame structure, and the magnetic member 1 is disposed at the periphery of the first engagement disc 2, that is, the first engagement disc 2 is disposed in a frame having a frame structure.

Alternatively, the magnetic member 1 is a circular ring.

The clutch provided in this embodiment has the principle that: the initial state is set such that the first engagement disc 2 and the second engagement disc 3 are separated. When the first engagement disc 2 and the second engagement disc 3 need to be engaged, the magnetic member 1 starts to generate magnetic force, and the second engagement disc 3 starts to slide on the spindle 4 in the direction of the first engagement disc 2 until the second engagement disc 3 engages with the first engagement disc 2 due to the magnetic material of the second engagement disc 3.

The clutch provided by the embodiment consists of a magnetic part 1, a first meshing disk 2, a second meshing disk 3, a main shaft 4 and the like. Because the second meshing disk 3 is magnetic material, when assembling, can set up the magnetic part 1 in the periphery of first meshing disk 2, compare in prior art, abandoned the push ring structure, make its structure simpler, simultaneously because need not to set up the push ring to set up the magnetic part 1 in the periphery of first meshing disk 2, make the axial size of clutch less than current clutch, make things convenient for the clutch to arrange on user equipment more.

As shown in fig. 1 to 3, in the clutch provided by the embodiment of the present utility model, a first limiting member 51 and a second limiting member 52 are disposed on the main shaft 4 at intervals; the first engagement disc 2 is located between the first limiting member 51 and the second limiting member 52, and two ends of the first engagement disc 2 are respectively abutted against the first limiting member 51 and the second limiting member 52.

In the present embodiment, the first stopper 51 and the second stopper 52 are used for axially restricting the first engagement disc 2.

Specifically, a first limiting member 51 and a second limiting member 52 are arranged on the main shaft 4 at intervals, and a limiting space for axially limiting the first meshing disk 2 is formed between the first limiting member 51 and the second limiting member 52. The first engaging disc 2 is sleeved on the main shaft 4 and is located in the limiting space, and two ends of the first engaging disc 2 are respectively abutted against the first limiting piece 51 and the second limiting piece 52.

Alternatively, in the present embodiment, the circumferential limitation of the first engagement disc 2 may be achieved by providing splines or flat keys or the like.

Alternatively, in the present embodiment, the first engagement disc 2 may be welded to the main shaft 4, so that both the axial direction and the circumferential direction between the first engagement disc 2 and the main shaft 4 may be fixed.

In the clutch provided by the embodiment of the present utility model, as shown in fig. 1 to 3, the first limiting member 51 is a shoulder on the main shaft 4, or the first limiting member 51 is a limiting snap ring disposed on the main shaft 4. The second limiting part 52 is a shoulder on the spindle 4, or the second limiting part 52 is a limiting snap ring disposed on the spindle 4.

In this embodiment, the first limiting member 51 may be a shoulder disposed on the spindle 4, or may be a limiting snap ring disposed on the spindle 4, and when the first limiting member 51 is a limiting snap ring, in order to improve the firmness of the limiting snap ring, a snap ring groove for mounting the limiting snap ring needs to be disposed on the spindle 4.

In this embodiment, the second limiting member 52 may be a shoulder disposed on the spindle 4, or may be a limiting snap ring disposed on the spindle 4, and when the second limiting member 52 is a limiting snap ring, in order to improve the firmness of the limiting snap ring, a snap ring groove for mounting the limiting snap ring needs to be disposed on the spindle 4.

Optionally, in an embodiment, the first limiting member 51 is a shaft shoulder, the second limiting member 52 is a limiting snap ring, and the spindle 4 is provided with a snap ring groove corresponding to the limiting snap ring.

Alternatively, in this embodiment, the first engagement disc 2 and the second engagement disc 3 are both jaw discs.

That is, in the present embodiment, the facing surfaces of the first engagement plate 2 and the second engagement plate 3 are each provided with tooth-shaped teeth, and the tooth-shaped teeth on the first engagement plate 2 correspond to the tooth-shaped teeth on the second engagement plate 3. When the tooth inserts on the first engagement disc 2 are engaged with the tooth inserts on the second engagement disc 3, torque can be transmitted through the first engagement disc 2 and the second engagement disc 3.

Alternatively, the clutch may be a friction type or a gear type.

In this embodiment, preferably, the magnetic member 1 is an electromagnetic coil, that is, the clutch in this embodiment is an electromagnetic clutch, which has a simple structure and mature and reliable technology.

In this embodiment, the electromagnetic coil assembly further includes a housing, the shape of the housing corresponds to that of the electromagnetic coil, a receiving cavity is formed in the housing, and the electromagnetic coil is disposed in the housing.

Alternatively, in this embodiment, the magnetic member 1 may be a magnet whose magnetism varies with temperature, and the magnetic force of the magnet is changed by the outside ambient temperature, so that the purpose of generating the magnetic force when the magnetic member 1 needs to attract the second engaging disc 3 in this embodiment can be achieved.

The clutch provided by the embodiment of the utility model, as shown in fig. 1 to 3, further comprises a reset piece 6.

The restoring element 6 serves to exert a force on the second engagement disk 3 in a direction away from the first engagement disk 2.

In the present embodiment, it has been mentioned that when the magnetic member 1 no longer generates a magnetic force, the second engagement plate 3 is separated from the first engagement plate 2 by gravity or other external force, and since the clutch is not arranged vertically, the reset member 6 needs to be provided to apply an external force to the second engagement plate 3 to be separated from the first engagement plate 2.

In this embodiment, when in use, the reset element 6 can apply a force to the second engagement disc 3 moving away from the first engagement disc 2, and after the magnetic element 1 no longer generates magnetic force, the second engagement disc 3 will be separated from the first engagement disc 2 under the action of the reset element 6, so as to realize the on-off function of the clutch.

Preferably, as shown in fig. 1 to 3, the restoring member 6 is a spring, which has a simple structure and a long service life.

It will be appreciated that in the present embodiment, the elastic member may also be rubber or the like having elasticity, which can also achieve the purpose of separating the first engagement disc 2 and the second engagement disc 3 after the magnetic member 1 no longer generates magnetic force in the present embodiment.

In the clutch provided by the embodiment of the utility model, as shown in fig. 1 to 3, the spring is sleeved on the main shaft 4, and the spring is positioned between the first meshing disk 2 and the second meshing disk 3.

In this embodiment, in order to reduce the volume of the clutch and facilitate the arrangement of the clutch, the spring is sleeved on the main shaft 4.

And, the spring is located between the first engagement plate 2 and the second engagement plate 3, and when the first engagement plate 2 is connected with the second engagement plate 3, the spring is compressed, and a force is applied to the second engagement plate 3 in a direction away from the first engagement plate 2.

Alternatively, one end of the spring is connected to the first engagement disc 2.

In this embodiment, the first engagement disc 2 is provided with a ring groove corresponding to the spring, one end of the spring is connected in the spring, the other end of the spring is suspended, and when the first engagement disc 2 is engaged with the second engagement disc 3, the suspended end of the spring abuts against the second engagement disc 3.

The clutch provided by the embodiment of the utility model further comprises a first gear 7. The first gear 7 is sleeved on the main shaft 4, and the first gear 7 and the main shaft 4 are axially fixed and circumferentially rotated. The first gear 7 is provided with a hub, a rim and a web, and the first meshing disk 2 is sleeved on the hub and axially slides and circumferentially fixed with the hub. The first engagement disc 2 is located in the space enclosed by the hub, the rim and the web.

In this embodiment, the first gear 7 is in transmission connection with the outside, and the first gear 7 is sleeved on the main shaft 4. The first gear 7 and the main shaft 4 are rotatable relative to each other, but the first gear 7 cannot slide on the main shaft 4.

In this embodiment, the first gear 7 has a hub provided with a through hole corresponding to the spindle 4, a rim provided with teeth, and a web located between the hub and the rim. The second meshing disk 3 is sleeved on the hub, and a spline or flat key structure is arranged between the second meshing disk 3 and the hub.

In this embodiment, the main shaft 4 is provided with an external spline sleeve, to which the hub of the gear is connected.

In the present embodiment, since the gear is rotatable on the main shaft 4 by the external spline shaft sleeve, that is, it is achieved that the second meshing disk 3 is rotatable with respect to the main shaft 4, and a spline or flat key structure is provided between the second meshing disk 3 and the hub, so that the second meshing disk 3 can slide on the hub, and the sliding direction of the second meshing disk 3 can also be defined.

When the clutch provided by the embodiment of the utility model is used, the first jaw (the first meshing disc 2) and the second jaw (the second meshing disc 3) are separated under the action of the spring (the elastic piece) when the electromagnetic coil (the magnetic piece 1) is not electrified, and torque cannot be transmitted through the first jaw and the second jaw. In this state, when the spindle 4 rotates, the first dog plate rotates with the spindle 4, but the second dog plate provided on the first gear 7 does not rotate with the spindle 4, and accordingly, the first gear 7 does not rotate with the spindle 4. When the electromagnetic coil is electrified, the electromagnetic coil generates magnetic force and adsorbs the second jaw disc, the second jaw disc is jointed with the first jaw disc against the elastic force of the spring, the spring is contracted into the annular groove, and one end of the spring, which is far away from the first jaw disc, is abutted against the second jaw disc. After the first jaw disc is engaged with the second jaw disc, torque can be transmitted through the first jaw disc and the second jaw disc, namely, the first jaw disc rotates along with the spindle 4, the first jaw disc drives the second jaw disc to rotate, and the second jaw disc drives the first gear 7 to rotate. When the electromagnetic coil is powered off, the first jaw plate and the second jaw plate are separated again under the action of the spring.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A clutch, comprising: a magnetic part (1), a first meshing disk (2), a second meshing disk (3) and a main shaft (4);

the first meshing disc (2) and the second meshing disc (3) are sleeved on the main shaft (4) at intervals, the first meshing disc (2) and the main shaft (4) are fixed in the axial direction and the circumferential direction, and the second meshing disc (3) and the main shaft (4) can axially slide and circumferentially rotate;

the magnetic piece (1) is arranged on the periphery of the first meshing disk (2), and the second meshing disk (3) is made of magnetic materials; the magnetic piece (1) can generate magnetic force and drive the second meshing disk (3) to move towards the direction close to the first meshing disk (2) and be combined with the first meshing disk (2).

2. Clutch according to claim 1, characterized in that the main shaft (4) is provided with a first stop (51) and a second stop (52) at intervals;

the first meshing disc (2) is located between the first limiting piece (51) and the second limiting piece (52), and two ends of the first meshing disc (2) are respectively abutted against the first limiting piece (51) and the second limiting piece (52).

3. Clutch according to claim 2, characterized in that the first stop (51) is a shoulder on the main shaft (4) or the first stop (51) is a stop collar provided on the main shaft (4);

the second limiting piece (52) is a shaft shoulder on the main shaft (4), or the second limiting piece (52) is a limiting snap ring arranged on the main shaft (4).

4. Clutch according to claim 1, characterized in that the first engagement disc (2) and the second engagement disc (3) are both claw discs.

5. Clutch according to claim 1, characterized in that the magnetic element (1) is an electromagnetic coil.

6. Clutch according to any of claims 1-5, further comprising a reset member (6);

the restoring element (6) is used for applying a force to the second engagement disk (3) in a direction away from the first engagement disk (2).

7. Clutch according to claim 6, characterized in that the return element (6) is a spring.

8. Clutch according to claim 7, characterized in that the spring is fitted over the main shaft (4) and is located between the first engagement disc (2) and the second engagement disc (3).

9. Clutch according to claim 1, further comprising a first gear (7);

the first gear (7) is sleeved on the main shaft (4), and the first gear (7) and the main shaft (4) are axially fixed and circumferentially rotated;

the first gear (7) is provided with a hub, a rim and a web, and the first meshing disc (2) is sleeved on the hub, and axially slides and circumferentially fixes with the hub;

the first engagement disc (2) is located in a space enclosed by the hub, the rim and the web.

10. An automobile comprising a clutch according to any one of claims 1 to 9.