CN216867346U

CN216867346U - Clutch release bearing assembly

Info

Publication number: CN216867346U
Application number: CN202122748649.XU
Authority: CN
Inventors: 张洛泽; 玉春锡
Original assignee: Shenyang Valeo Pyeong HWA Transmission Systems Co Ltd
Current assignee: Shenyang Valeo Pyeong HWA Transmission Systems Co Ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-07-01
Anticipated expiration: 2031-11-11

Abstract

The utility model relates to a clutch release bearing assembly which comprises a release bearing assembly arranged in a clutch, wherein the release bearing assembly comprises a release bearing and a sleeve body, the release bearing is abutted against a diaphragm arranged in the clutch, the sleeve body and the release bearing are coaxially arranged and are provided with a hook part matched with a release fork, one side of the sleeve body is provided with a hook part retreating cavity, the hook part retreating cavity is arranged below the hook part, the other side of the sleeve body is provided with an axial penetrating part, one side of the axial penetrating part forms a bearing contact surface, the other side of the axial penetrating part forms a fork contact surface, and the width of a second opening W2 at one end of the axial penetrating part close to the bearing contact surface is larger than the width of a first opening W1 at one end of the axial penetrating part close to the fork contact surface. The utility model can keep the stable assembly state between the hook part of the sleeve body and the separation shifting fork.

Description

Clutch release bearing assembly

Technical Field

The utility model relates to a clutch release bearing assembly.

Background

A clutch device, which is generally used for a vehicle, is installed between a crankshaft of an engine and an input shaft of a transmission and selectively supplies power generated from the engine to the input shaft of the transmission, i.e., controls power input to the transmission by being in contact with or not in contact with a flywheel.

In this case, the power interruption of the clutch is initiated by axial movement of the release bearing by the release fork, which causes contact between the pressure and driven plate assemblies and the flywheel to be broken, so that the power supplied to the transmission input shaft can be cut off.

Traditionally, the release bearing is coupled to the clutch release fork by a hook portion on the release bearing contacting an opening of the release fork. However, there is a problem that the hook portion of the release bearing is damaged by contacting the opening of the release fork during the assembly process.

In addition, in the conventional clutch, after the release bearing and the release fork are assembled, in the transportation process, the condition that the release fork is separated from the hook part or the end part is damaged due to insufficient meshing amount of the hook often occurs, and in the process of assembling the release bearing, the hook also can cause the deviation problem.

In order to solve the above problems, there have been proposed designs in which the length of the hook portion of the release bearing is increased or the rigidity is improved, but there are many limitations in design in consideration of the layout with other parts since the increase in the length of the hook portion correspondingly increases the overall length of the transmission.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clutch release bearing assembly, which can keep a stable assembly state between a hook part of a sleeve body and a release fork.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a clutch release bearing assembly, is including locating the release bearing assembly in the clutch, release bearing assembly includes release bearing and sleeve body, and wherein release bearing offsets with the diaphragm of locating in the clutch, and sleeve body and release bearing are coaxial to be equipped with release fork complex hook portion, sleeve body one side is equipped with hook portion and retreats the chamber, just hook portion below is located to hook portion in the chamber is retreated to hook portion, sleeve body opposite side is equipped with axial through-part, just axial through-part one side is equipped with bearing contact surface (37a), and the opposite side is equipped with shift fork contact surface (37), the second opening W2 width that axial through-part is close to bearing contact surface one end is greater than the first opening W1 width that is close to shift fork contact surface one end.

The sleeve body comprises an inner member, a middle member and an outer member, wherein the inner member is hollow, the middle member is arranged on the outer side of the circumference of the inner member, the outer member is arranged on the outer side of the circumference of the middle member, the hook part is arranged on the middle member, a hook part retreating cavity is formed between the hook parts of the inner member and the middle member, and an axial penetrating part is formed between the middle member and the outer member.

The clamping length of the hook part comprises the thickness H and the extra length C of the separation shifting fork.

The release bearing and the sleeve body are connected through a connecting washer.

A plurality of through holes are arranged between the inner member and the middle member along the circumferential direction.

The connecting washer comprises a washer body and washer convex parts which are uniformly distributed on the washer body along the circumferential direction, locking rib plates are arranged in the washer convex parts, the washer body is inserted into and fixed in an inner hole of the release bearing, and each washer convex part is respectively inserted into a corresponding through hole on the sleeve body and is clamped and fixed through the locking rib plates.

The separating bearing is characterized in that an outward protruding flange part is arranged on the gasket body, an elastic gasket is arranged between the inner ring of the separating bearing and the gasket body, the outer side of the elastic gasket is abutted against the inner ring, and the inner side of the elastic gasket is abutted against the flange part.

And a seam allowance is formed on the inner side of the hole wall of the through hole, and after the convex part of the gasket is inserted, the locking rib plate of the convex part of the gasket is clamped with the seam allowance.

The outer side of the hole wall of the through hole is provided with an inclined surface for guiding the insertion of the convex part of the gasket.

The utility model has the advantages and positive effects that:

1. according to the release bearing assembly, the sleeve body is provided with the hook part retreating cavity for being assembled and connected with the release fork, so that the hook part of the sleeve body and the release fork can be kept in a stable assembly state, the release fork can be prevented from being unnecessarily separated from the hook part even if the release fork is transferred after being assembled, and the hook part stiffness can meet the requirement without increasing the protruding length of the hook part relative to the sleeve body.

2. In the separation bearing assembly, a stable connection structure is formed between the separation bearing and the sleeve body through the connecting gasket, so that the stable assembly state of the whole assembly structure can be ensured, and the separation can not occur.

Drawings

Figure 1 is a schematic perspective view of the present invention,

figure 2 is an exploded schematic view of the present invention,

figure 3 is a half sectional view of the present invention,

figure 4 is a schematic view of the release bearing assembly of figure 1,

figure 5 is an exploded view of the separator bearing assembly of figure 4,

figure 6 is another exploded perspective view of the separator bearing assembly of figure 4,

fig. 7 is a full cross-sectional view of the release bearing assembly of fig. 4.

The clutch includes a clutch 1, a diaphragm 3, a release bearing assembly 5, a release fork 7, a pressure plate 9, a flywheel 11, a driven plate 13, an input shaft 15, a guide pipe 16, a spline hub 17, a release bearing 20, an inner ring 22, an outer ring 24, a sleeve body 30, a hook 31, an inner member 32, an intermediate member 33, an outer member 34, a hook escape cavity 35, an axial through portion 36, a fork contact surface 37, a bearing contact surface 37a, a through hole 38, a spigot 38a, an inclined surface 38b, a connection washer 40, a washer body 41, a flange 41, a washer projection 42, and a locking rib 43.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 7, the clutch device comprises a release bearing assembly 5 arranged in the middle of a clutch 1, wherein a diaphragm 3 is arranged in the clutch 1, the release bearing assembly 5 compresses or releases the diaphragm 3, and a release fork 7 is arranged on one side of the clutch 1 and used for applying pressure to the release bearing assembly 5 in the axial direction.

As shown in fig. 3, a pressure plate 9, a flywheel 11, a disc assembly 13, a spline hub 17 and other structures are arranged in the clutch 1, wherein the disc assembly 13 is installed on the flywheel 11, the spline hub 17 and the disc assembly 13 are interlocked and connected to an input shaft 15 of the transmission, the pressure plate 9 is arranged on the disc assembly 13, one side of the diaphragm 3 is connected with the pressure plate 9, the other side of the diaphragm abuts against the release bearing assembly 5, and the release bearing assembly 5 compresses or releases the diaphragm 3 along the axial direction under the action of a release fork 7. The above-described structure is well known in the art.

As shown in fig. 4 to 7, the release bearing assembly 5 includes a release bearing 20, a sleeve body 30 and a connection washer 40, wherein the sleeve body 30 is coaxially disposed with the input shaft 15 of the transmission, the release bearing 20 is disposed at one end of the sleeve body 30 and abuts against the diaphragm 3, the sleeve body 30 applies an external force through the release fork 7, and further applies an external force to the release bearing 20 to press or release the diaphragm 3, and the sleeve body 30 and the release bearing 20 are connected through the connection washer 40.

As shown in fig. 5 to 7, the release bearing 20 includes an inner ring 22, an outer ring 24 and a plurality of metal balls 26, and as shown in fig. 7, the metal balls 26 are disposed between the inner ring 22 and the outer ring 24, the metal balls 26 can roll in a cavity between the inner ring 22 and the outer ring 24 along a circumferential direction, as shown in fig. 3, the inner ring 22 elastically abuts against the diaphragm 3.

As shown in fig. 4 to 7, the sleeve body 30 is made of plastic by injection molding, and is coaxially disposed with the release bearing 20, and a hook 31 is disposed at one end of the sleeve body 30 away from the release bearing 20 for connecting with the release fork 7.

As shown in fig. 4 to 7, the sleeve body 30 includes an inner member 32, an intermediate member 33 and an outer member 34, wherein as shown in fig. 7, the inner member 32 is hollow, the intermediate member 33 is disposed on the outer circumferential side of the inner member 32, the outer member 34 is disposed on the outer circumferential side of the intermediate member 33, the hook portion 31 is disposed on the intermediate member 33, a hook portion escape cavity 35 is formed between the inner member 32 and the hook portion 31 of the intermediate member 33, and an axial penetration portion 36 is formed between the intermediate member 33 and the outer member 34, as shown in fig. 3, the inner member 32 of the sleeve body 30 is provided with the guide tube 16, and as shown in fig. 4 to 6, the inner member 32 is provided with serrations 32a on the entire circumferential inner wall facing the guide tube 16, the serrations 32a are provided along the axial direction of the inner member 32, may have a long axial extension, and a gap between the serrations 32a and the guide tube 16 may store a lubricant in a proper amount, as shown in fig. 4 to 7, the outer member 34 has a fork contact surface 37 formed on one side thereof to be in contact with the release fork 7 and a bearing contact surface 37a formed on the other side thereof to be in contact with the release bearing 20.

As shown in fig. 7, the distance between the inner end surface 35a of the hook retreat cavity 35 and the fork contact surface 37 of the outer member 34 is D, and the distance between the hook 31 and the fork contact surface 37 is H + C, according to the present invention, the hook retreat cavity 35 has a deeper depth, that is, the distance H + C may be set to be 1.2 to 1.4 times of the distance D, such that the hook 31 may be elastically pressed down toward the hook retreat cavity 35 side, as shown in fig. 2, an opening 7a is provided in the middle of the separation fork 7, the hook 31 may be elastically pressed down into the opening 7a first, and then elastically restored and lifted to block the edge of the opening 7a to achieve locking, and an appropriate extra length C may be left in the engagement length of the hook 31 with respect to the thickness H of the separation fork 7, such that the hook 31 and the separation fork 7 may stably support the opening when the separation fork 7 is combined, the distance of the release fork 7 at the rear side can be adjusted with an appropriate extra length C to ensure that such a stable supporting force does not cause an unnecessary separation of the release fork 7 from the sleeve body 30, especially during the transfer after the assembly of the release fork 7 with the release bearing assembly 5 on the clutch 1.

As shown in fig. 7, the axial through portion 36 is located between the intermediate member 33 and the outer member 34, and the width of the second opening W2 of the axial through portion 36 at the end near the bearing contact surface 37a is larger than the width of the first opening W1 at the end near the fork contact surface 37, so that the portion of the second opening W2 that changes rapidly to the first opening W1 has a gentle curvature. The widths of the second opening W2 and the first opening W1 may be designed to be equal.

The shape characteristics of the axial through portions 36 allow the insertion of core pins having a more solid structural shape, which can prevent the deformation of the product during the injection molding of the sleeve body 30 by high pressure injection pressure, helping to maintain a stable quality of the product. In addition, since the width of the second opening W2 of the axial penetration portion 36 is greater than the width of the first opening W1, the separation of the core pin after injection molding can be facilitated.

As shown in fig. 5 to 7, a plurality of through holes 38 are formed between the inner member 32 and the intermediate member 33 along the circumferential direction for mounting the connection washer 40, a plurality of locking ribs 43 tilted inward for preventing separation are formed on the connection washer 40, and the locking ribs 43 are inserted into the corresponding through holes 38 and clamped and fixed.

As shown in fig. 5 to 7, the connection washer 40 includes a washer body 41 and washer protrusions 42 uniformly distributed on the washer body 41 along a circumferential direction, the locking ribs 43 are disposed in the washer protrusions 42, the washer body 41 is inserted and fixed in an inner hole of the release bearing 20 during installation, the washer protrusions 42 are respectively inserted into corresponding through holes 38 on the sleeve body 30, the locking ribs 43 tilting inward in each washer protrusion 42 are clamped in the corresponding through holes 38 to limit axial movement for connection, and the through holes 38 can limit rotation of the washer protrusions 42.

As shown in fig. 5, the washer body 41 is provided with a flange portion 41a protruding outward, and as shown in fig. 7, an elastic washer 44 is provided between the inner ring 24 of the release bearing 20 and the washer body 41, and the outer side of the elastic washer 44 abuts against the inner ring 24 and the inner side abuts against the flange portion 41 a.

As shown in fig. 5 to 6, the washer protrusions 42 are uniformly distributed along the circumferential direction, as shown in fig. 7, the outer side of the hole wall of the through hole 38 is provided with an inclined surface 38b, and the inner side of the hole wall is provided with a spigot 38a, when the washer protrusions 42 are inserted into the corresponding through holes 38, the locking rib 43 firstly moves along the inclined surface 38b and smoothly enters the through hole 38, and then the locking rib 43 elastically restores to the original position and is engaged with the spigot 38a to prevent separation, so that the axial displacement of the locking rib 43 is limited, and the connection between the release bearing 20 and the sleeve body 30 is realized.

The working principle of the utility model is as follows:

the sleeve body 30 of the utility model comprises an inner member 32, a middle member 33 and an outer member 34, a hook part 31 matched with the separation fork 7 is arranged on the middle member 33, a hook part retreating cavity 35 is formed between the inner member 32 and the hook part 31, an opening 7a is arranged at the middle part of the separation fork 7, the hook part 31 can be firstly pressed down into the opening 7a elastically and then reset elastically to lift and block the edge of the opening 7a to realize locking, and the engagement length of the hook part 31 can be kept with a proper surplus length C relative to the thickness H of the separation fork 7, therefore, when the hook part 31 is combined with the separation fork 7, besides the opening for stably supporting the separation fork 7, the rear side of the separation fork 7 can be adjusted with a proper surplus length C to ensure that the stable supporting force can not generate unnecessary separation of the separation fork 7 and the sleeve body 30, especially during the transfer after assembly of the release fork 7 with the release bearing assembly 5 on the clutch 1. The utility model can ensure that the hook part 31 has the rigidity meeting the requirement under the condition of not increasing the protruding length of the hook part 31 relative to the sleeve body 30, and does not need to increase the total length of the protruding part caused by structures such as a transmission device and the like. In addition, in the separating bearing assembly, a stable connecting structure is formed between the separating bearing and the sleeve body through a connecting gasket, so that the stable assembling state of the whole assembly structure can be ensured, and the separating bearing assembly cannot be separated.

Claims

1. A clutch release bearing assembly characterized by: comprising a release bearing assembly (5) arranged in the clutch (1), the release bearing assembly (5) comprising a release bearing (20) and a sleeve body (30), wherein the release bearing (20) is pressed against a diaphragm (3) arranged in the clutch (1), the sleeve body (30) and the release bearing (20) are coaxially arranged, and is provided with a hook part (31) matched with the separation shifting fork (7), one side of the sleeve body (30) is provided with a hook part retreating cavity (35), the hook part retreating cavity (35) is arranged below the hook part (31), the other side of the sleeve body (30) is provided with an axial penetrating part (36), and one side of the axial penetrating part (36) is provided with a bearing contact surface (37a), the other side is provided with a shifting fork contact surface (37), the width of the second opening W2 at one end of the axial penetrating part (36) close to the bearing contact surface (37a) is larger than the width of the first opening W1 at one end close to the shift fork contact surface (37).

2. The clutch release bearing assembly of claim 1, wherein: the sleeve body (30) comprises an inner member (32), an intermediate member (33) and an outer member (34), wherein the inner member (32) is hollow, the intermediate member (33) is arranged on the outer side of the circumference of the inner member (32), the outer member (34) is arranged on the outer side of the circumference of the intermediate member (33), the hook part (31) is arranged on the intermediate member (33), a hook part retreating cavity (35) is formed between the inner member (32) and the hook part (31) of the intermediate member (33), and an axial penetrating part (36) is formed between the intermediate member (33) and the outer member (34).

3. The clutch release bearing assembly of claim 2, wherein: the clamping length of the hook part (31) comprises the thickness H and the extra length C of the separation shifting fork (7).

4. The clutch release bearing assembly of claim 2, wherein: the release bearing (20) and the sleeve body (30) are connected by a connecting washer (40).

5. The clutch release bearing assembly of claim 4, wherein: a plurality of through holes (38) are provided between the inner member (32) and the intermediate member (33) in the circumferential direction.

6. The clutch release bearing assembly of claim 5, wherein: the connecting washer (40) comprises a washer body (41) and washer bulges (42) uniformly distributed on the washer body (41) along the circumferential direction, locking rib plates (43) are arranged in the washer bulges (42), the washer body (41) is inserted and fixed in an inner hole of the separating bearing (20), and each washer bulge (42) is respectively inserted into a corresponding through hole (38) in the sleeve body (30) and is clamped and fixed through the locking rib plates (43).

7. The clutch release bearing assembly of claim 6, wherein: the separating bearing is characterized in that an outward protruding flange part (41a) is arranged on the gasket body (41), an elastic gasket (44) is arranged between the inner ring (24) of the separating bearing (20) and the gasket body (41), the outer side of the elastic gasket (44) is abutted against the inner ring (24), and the inner side of the elastic gasket (44) is abutted against the flange part (41 a).

8. The clutch release bearing assembly of claim 6, wherein: a spigot (38a) is formed on the inner side of the wall of the through hole (38), and after the washer projection (42) is inserted, the locking rib (43) of the washer projection (42) is clamped with the spigot (38 a).

9. The clutch release bearing assembly of claim 8, wherein: the outer side of the hole wall of the through hole (38) is provided with an inclined surface (38b) for guiding the insertion of the gasket protrusion (42).