CN212775250U

CN212775250U - Power assembly capable of completely disconnecting power and multi-plate clutch

Info

Publication number: CN212775250U
Application number: CN202021244961.4U
Authority: CN
Inventors: 王吉龙; 罗裕源
Original assignee: Chongqing Meiao Machinery Manufacturing Co ltd; Chongqing Longwang Electromechanical Co Ltd
Current assignee: Chongqing Meiao Machinery Manufacturing Co ltd; Chongqing Longwang Electromechanical Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-03-23
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a can thoroughly break off power's power component and multi-disc clutch, including the initiative piece and be used for being fixed in the epaxial resistance piece of clutch, during the clutch separation the initiative piece meshes and restricts the resistance piece and rotates with the resistance piece. The utility model discloses in when the clutch separation, the initiative piece axial moves right and prevents its pivoted effort with the resistance meshing and for the resistance provides, so that the resistance stall, and then prevents the rotation of main shaft, realizes power transmission's thorough interrupt between clutch housing and the main shaft, reaches the purpose of the thorough separation of clutch, has improved the response precision of clutch.

Description

Power assembly capable of completely disconnecting power and multi-plate clutch

Technical Field

The utility model relates to a clutch technical field especially relates to a can thoroughly break off power's power component and multiplate clutch.

Background

For a multi-plate friction clutch, the torque is transmitted from a driving shaft to a driven shaft by using mechanical friction force between friction surfaces, and a main engine can be engaged with or disengaged from the driven shaft according to working requirements; the friction plate and the steel sheet of the friction clutch are separated thoroughly, so that the influence on the transmission efficiency is large, the number of pairs of the friction plate and the driven plate of the conventional multi-disc friction clutch is large, the flexibility of the clutch is influenced, after the pressing force is removed, the gap between the friction plate and the steel sheet is small, oil film contact still exists, so that large oil resistance is caused, and the friction plate and the steel sheet still realize power transmission through the oil film in the rotating process, so that the power cannot be completely interrupted;

in view of the above, there is a need for a power assembly and multi-plate clutch that can completely disconnect power, and can completely interrupt power when the clutch is disengaged.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a power assembly and a multi-plate clutch capable of completely disconnecting power, which can completely interrupt power when the clutch is disengaged.

The utility model discloses a can thoroughly break off power's power component, including the initiative piece and be used for being fixed in the epaxial resistance piece of clutch, during the clutch separation the initiative piece meshes and restricts the resistance piece and rotates with the resistance piece.

Furthermore, the driving part is a sliding sleeve which can axially slide and is sleeved outside the main shaft and is in running fit with the main shaft, the sliding sleeve can axially slide singly, and the sliding sleeve is meshed with the resistance part through axial sliding.

Further, still include the fork, the sliding sleeve both ends correspond to clutch pressure disk and resistance piece respectively, the sliding sleeve is connected with the fork and can be driven the axial slip by the fork and mesh with the resistance piece in order to be close to and drive the pressure disk or keep away from the pressure disk.

Further, still including shifting fork and elastic component, shifting fork and clutch pressure disk cooperation drive pressure disk axial motion, shifting fork and sliding sleeve cooperation restriction sliding sleeve's rotation, the elastic component has and acts on the sliding sleeve and makes the sliding sleeve axial to slide and rather than the elastic force of meshing to being close to the resistance side.

Furthermore, the resistance piece is a resistance sleeve fixedly sleeved on the main shaft, and the axial opposite ends of the resistance sleeve and the sliding sleeve are provided with meshing surfaces matched with each other.

Furthermore, the engaging surface of the resistance sleeve and the sliding sleeve shaft is an inclined surface or a concave-convex surface which are matched with each other.

Furthermore, the resistance part is a pin shaft arranged on the main shaft, and one end of the sliding sleeve, which is axially close to the pin shaft, is provided with a limit groove which can enable the pin shaft to be radially embedded.

Further, the limiting groove is provided with a plurality of limiting grooves around the axis of the sliding sleeve.

Further, the sliding sleeve further comprises an elastic member which has an elastic force acting on the sliding sleeve and causing the sliding sleeve to axially slide toward the side close to the resistance member and to be engaged therewith.

The utility model also provides a multi-disc clutch, install the aforesaid in the clutch the power component of thoroughly breaking off power.

The utility model has the advantages that:

the utility model discloses in when the clutch separation, the initiative piece meshes with the resistance and provides for the resistance and prevents its pivoted effort to make resistance stall, and then prevent the rotation of main shaft, realize power transmission's thorough interrupt between clutch dustcoat and the main shaft, reach the purpose of the thorough separation of clutch, improved the response precision of clutch.

The utility model discloses a pull out fork and sliding sleeve cooperation and both can realize sliding sleeve and resistance piece meshing and realize the purpose that power thoroughly interrupted, also can drive the sliding sleeve and promote the purpose that the pressure disk reaches the closed transmission power of clutch, this structure cooperation is current pulls out the fork, has simplified whole power component's structure, has compromise the locking of main shaft and then reach the purpose of thoroughly interrupting the power through the drive of simpler institutional advancement promptly having also realized the pressure disk.

Drawings

The invention is further described with reference to the following figures and examples.

FIG. 1 is a schematic structural view of an embodiment 1 of the clutch;

FIG. 2 is a schematic structural view of embodiment 2 of the clutch;

FIG. 3 is a schematic view of a sliding sleeve structure;

FIG. 4 is a schematic view of a matching structure of a shifting fork and a sliding sleeve;

Detailed Description

FIG. 1 is a schematic structural view of an embodiment 1 of the clutch; FIG. 2 is a schematic structural view of embodiment 2 of the clutch; FIG. 3 is a schematic view of a sliding sleeve structure; FIG. 4 is a schematic view of a matching structure of a shifting fork and a sliding sleeve;

as shown in the drawings, the power assembly capable of completely disconnecting power in this embodiment is applied to a multi-plate clutch, which is described in this embodiment by taking the multi-plate clutch as an example, the multi-plate clutch includes a clutch outer cover 6, a left pressure plate 7, a right pressure plate 8, and steel sheets 9 and friction sheets 10 which are axially staggered, wherein the friction sheets are installed on the clutch outer cover as dynamic friction sheets and rotate synchronously with the clutch outer cover, the steel sheets are installed on the left pressure plate 7 as static friction sheets, the clutch outer cover is connected with external power equipment as a driving pair, the left pressure plate is in transmission fit with a main shaft 11 of the clutch as a driven pair, the structure and the assembly mode of the clutch components are the prior art, and detailed description is omitted;

the power assembly capable of completely disconnecting power comprises a driving part and a resistance part fixed on a clutch main shaft, wherein the driving part is meshed with the resistance part and limits the rotation of the resistance part when the clutch is separated; the clutch separation means that friction plates and steel sheets of the clutch are far away from each other to achieve a state that power is interrupted, the resistance piece is positioned at the right end of the right pressure plate and rotates along with the main shaft, the driving piece is arranged on the main shaft and positioned between the right pressure plate and the resistance piece, the driving piece can only axially slide and can not rotate, the driving piece and the resistance piece can be meshed in a mode similar to an internal spline and an external spline, or can be engaged by axial clamping or friction, when the clutch is separated, the driving part moves to the right in the axial direction to be meshed with the resistance part and provide acting force for preventing the resistance part from rotating so as to stop the resistance part from rotating, and further, the rotation of the main shaft is prevented, the complete interruption of power transmission between the clutch outer cover and the main shaft is realized, the purpose of completely separating the clutch is achieved, and the response precision of the clutch is improved.

In this embodiment, the driving member is a sliding sleeve 1 that is axially slidable and is sleeved on the main shaft and rotationally matched with the main shaft, the sliding sleeve is axially slidable in a single-free manner, and the sliding sleeve is engaged with the resistance member through axial sliding. The sliding sleeve can only axially slide singly, in addition, the sliding sleeve is in running fit with the main shaft, so that the main shaft can relatively rotate in the sliding sleeve, the specific sliding sleeve can be connected with external driving equipment to enable the sliding sleeve to axially slide in a single degree of freedom, the sliding sleeve is installed on a clutch main shaft, the axial sliding through the sliding sleeve can be close to or far away from a resistance piece, the main shaft is used as an installation part of the sliding sleeve by the structure, the installation and the driving of the sliding sleeve are convenient, and the right pressure plate can be driven to move through the axial sliding of.

In this embodiment, still include the fork 5, the sliding sleeve both ends correspond to clutch pressure disk and resistance piece respectively, the sliding sleeve is connected with the fork and can be driven the axial slip by the fork and mesh with the resistance piece in order to be close to and drive the pressure disk or keep away from the pressure disk. The end part of the shifting fork is provided with a semicircular groove, the sliding sleeve is positioned in the semicircular groove and is in running fit with the shifting fork, the structure of the shifting fork and the matching mode of the shifting fork and the sliding sleeve adopt the prior art, the shifting fork is matched with the sliding sleeve to limit the rotation of the sliding sleeve along the axis of the shifting fork, the shifting fork drives the sliding sleeve rightwards to enable the sliding sleeve to be meshed with the resistance piece, the resistance piece is prevented from rotating, the rotation of the main shaft is prevented, and the purpose of completely separating the clutch is achieved; when the shifting fork drives the sliding sleeve to slide leftwards, the sliding sleeve can push the right pressure plate to compress the friction plate and the steel sheet, and the sliding sleeve is far away from the resistance piece, so that the resistance piece and the main shaft can rotate freely, the purpose of transmitting power is achieved.

In this embodiment, still include fork 5 and elastic component 12, fork and clutch pressure disk cooperation drive pressure disk axial motion, fork and sliding sleeve cooperation restriction sliding sleeve's rotation, the elastic component has the elastic force that acts on the sliding sleeve and makes the sliding sleeve axial to slide and rather than meshing to being close to the resistance side. Referring to FIG. 4, two tangent planes are arranged on two sides of the excircle of the sliding sleeve, wherein the end of the shifting fork is in a U-shaped fork structure, the sliding sleeve interferes with the shifting fork when rotating along the self axis, the rotation of the sliding sleeve along the self axis is limited by the matching of the U-shaped fork and the two tangent planes of the sliding sleeve, and the tail end of the shifting fork does not interfere with the sliding sleeve when swinging axially, referring to FIG. 1, when the main shaft is assembled on the left pressure plate, the axial positioning on the left side of the left pressure plate is realized by the elastic clamping ring 13 arranged on the main shaft, in addition, the axial positioning on the right side of the right pressure plate is realized by the resistance sleeve, a thrust bearing is arranged between the right pressure plate and the resistance sleeve, wherein the elastic part adopts a cylindrical helical spring, of course, an elastic structure such as a disc spring, a wave spring and the like can also be adopted, the elastic part is, meanwhile, the elastic part is pre-compressed to a certain extent, and the elastic force of the elastic part acts on the sliding sleeve through the thrust bearing and the right pressure plate, so that the sliding sleeve has the tendency of being pressed on the resistance sleeve in a right sliding manner; when the shifting fork does not act on the sliding sleeve or the sliding sleeve is shifted to slide rightwards, the clutch outer cover rotates, the limiting sleeve is sleeved between the clutch shifting forks and cannot rotate, the sliding sleeve is pressed on the resistance sleeve under the action of the elastic part and applies axial force, and the sliding sleeve is meshed with the resistance sleeve to prevent the resistance sleeve from rotating, so that the rotation of the main shaft is prevented, and the aim of completely separating the clutch is fulfilled; when the shifting fork shifts the sliding sleeve to slide left, the sliding sleeve pushes the right pressure plate to slide left to compress the friction plate and the steel sheet, and meanwhile, the elastic part is compressed, and no axial force exists between the sliding sleeve and the resistance sleeve, so that the resistance sleeve and the main shaft can rotate freely, and the purpose of transmitting power is achieved;

in this embodiment, the resistance member is a resistance sleeve 2 fixed on the main shaft, and the axial opposite ends of the resistance sleeve and the sliding sleeve are provided with mutually matched meshing surfaces. Resistance cover and sliding sleeve have the cylindricality inner chamber, resistance cover and sliding sleeve foreign steamer profile can be the cylindricality, square or polygon structure, resistance cover accessible welding or spiro union realize with the fixed of main shaft, the internal diameter and the external diameter of resistance cover and sliding sleeve are the same in this embodiment, the two is identical to the meshing face shape relatively, do benefit to the reliable meshing of the two, utilize the main shaft as the installing component of resistance cover, the installation of the resistance cover of being convenient for, the resistance adopts sleeve structure and main shaft cooperation, circumference atress is even when can making the main shaft rotate, prevent the radial float that the atress inequality leads to.

In this embodiment, the engaging surface of the resistance sleeve and the sliding sleeve shaft is an inclined surface or a concave-convex surface which are matched with each other. The resistance torque opposite to the rotation direction of the main shaft is provided for the resistance sleeve through the engagement of the inclined surfaces, so that the rotation of the resistance sleeve is limited, and the rotation of the main shaft is further prevented; when the engaging surface is an inclined surface, the engaging surface can be a spiral inclined surface and a horizontal inclined cutting surface which are engaged with each other; when the meshing surface is a concave-convex surface, the meshing surface of the resistance sleeve and the sliding sleeve shaft is respectively provided with a protrusion and a pit, the protrusion and the pit can be in macroscopic structure or microscopic macroscopic structure, when the meshing surface is in microscopic structure, the size structure of the protrusion and the pit can be controlled by roughness, the protrusion and the pit can be in regular arrangement structure or disordered arrangement structure, the protrusion and the pit can be in circular structure, rectangular structure or other irregular structures, the meshing surface of the concave-convex surface is favorable for increasing the friction force when the protrusion and the pit are meshed, and further the resistance torque opposite to the rotation direction of the main shaft is provided for the resistance sleeve; for the application occasion with smaller transmission torque, the engagement surface of the resistance sleeve and the sliding sleeve shaft can also be set to be a radially extending plane structure, and the plane structure should ensure larger roughness, which is not described in detail; the meshing surface of the structure can apply resisting moment to the main shaft in real time, so that the main shaft stops rotating, and the purpose of completely separating the power of the clutch is achieved.

In this embodiment, the resistance member is a pin shaft 3 installed on the main shaft, and a limit groove 4 enabling the pin shaft to be radially embedded is axially arranged at one end of the sliding sleeve, which is close to the pin shaft. Referring to fig. 2 and 3, a schematic structural diagram of embodiment 2 is shown, and a difference between fig. 2 and fig. 1 lies in the structure of the resistance member and the structure of the sliding sleeve, where the resistance member in this embodiment is a pin shaft, the pin shaft radially penetrates through the main shaft, both axial ends of the pin shaft are exposed outside the main shaft, and when the sliding sleeve axially slides rightward, the pin shaft is radially embedded into the limit groove, and the main shaft is in transmission fit with the sliding sleeve through the fit between the pin shaft and the limit groove, so as to prevent the main shaft from rotating, as shown in fig. 3, the limit groove in this embodiment is preferably a semicircular groove, and may also be configured as a trapezoidal groove, a rectangular groove, and the like, and details are.

In this embodiment, the limiting groove is provided with a plurality of around the sliding sleeve axis. A plurality of spacing grooves are preferably evenly arranged around the axis of the sliding sleeve, timely matching with the pin shaft is achieved through the plurality of spacing grooves, power of the clutch is enabled to be rapidly interrupted, and response accuracy of the clutch is improved.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A power assembly capable of completely disconnecting power, characterized in that: the clutch comprises a driving part and a resistance part fixed on a clutch main shaft, wherein the driving part is meshed with the resistance part and limits the rotation of the resistance part when the clutch is separated.

2. A power pack capable of completely disconnecting power according to claim 1, wherein: the driving part is a sliding sleeve which can axially slide and is sleeved outside the main shaft and is in running fit with the main shaft, the sliding sleeve can axially slide singly, and the sliding sleeve is meshed with the resistance part through axial sliding.

3. A power pack capable of completely disconnecting power according to claim 2, wherein: still including shifting the fork, the sliding sleeve both ends correspond to clutch pressure disk and resistance piece respectively, the sliding sleeve is connected with shifting the fork and can be driven the axial slip by shifting the fork and mesh with the resistance piece in order to be close to and drive the pressure disk or keep away from the pressure disk.

4. A power pack capable of completely disconnecting power according to claim 2, wherein: still including shifting fork and elastic component, shift fork and clutch pressure disk cooperation drive pressure disk axial motion, shift fork and the rotation of sliding sleeve cooperation restriction sliding sleeve, the elastic component has and acts on the sliding sleeve and makes the sliding sleeve axial to be close to the resistance side slip and rather than the elastic force of meshing.

5. A power pack capable of completely disconnecting power according to claim 2, wherein: the resistance piece is a resistance sleeve fixedly sleeved on the main shaft, and the axial opposite ends of the resistance sleeve and the sliding sleeve are provided with meshing surfaces matched with each other.

6. A power pack capable of completely disconnecting power according to claim 5, wherein: the engaging surface of the resistance sleeve and the sliding sleeve shaft is an inclined surface or a concave-convex surface which are matched with each other.

7. A power pack capable of completely disconnecting power according to claim 2, wherein: the resistance piece is a pin shaft arranged on the main shaft, and one end of the sliding sleeve, which is axially close to the pin shaft, is provided with a limit groove which enables the pin shaft to be radially embedded.

8. A power pack capable of completely disconnecting power according to claim 7, wherein: the limiting groove is provided with a plurality of around the sliding sleeve axis.

9. A multiple-plate clutch, characterized by: the clutch is provided with a power assembly which can completely disconnect the power according to any one of claims 1 to 8.