CN110953259A

CN110953259A - Pull-type clutch separating device

Info

Publication number: CN110953259A
Application number: CN201911269410.5A
Authority: CN
Inventors: 杨俊峰; 严鉴铂; 刘义; 许先哲; 马明慧; 王李涛
Original assignee: Shaanxi Fast Gear Co Ltd
Current assignee: Shaanxi Fast Gear Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-04-03
Anticipated expiration: 2039-12-11
Also published as: CN110953259B

Abstract

The invention relates to a pull-type clutch separating device.A clutch housing is internally provided with an input shaft bearing cover along the axial direction, the input shaft bearing cover is connected with a speed changer body, a separating bearing is sleeved on the outer wall of the input shaft bearing cover, and the separating bearing is connected with a clutch separating finger; the upper bracket of the separation shifting fork bracket is positioned above the clutch shell, the lower bracket is arranged higher than the input shaft bearing cover and is arranged deep into the clutch shell, the lower bracket comprises two clamping arms which are arranged at intervals and in parallel, the upper end of the separation shifting fork is arranged in the upper bracket of the separation shifting fork bracket, the lower end of the separation shifting fork is a clamping piece, the middle part of the separation shifting fork is arranged in the clamping arms of the separation shifting fork bracket, and the separation shifting fork shaft penetrates through the clutch shell, the clamping arms of the separation shifting fork bracket and the middle part of the separation shifting fork; the clamping piece at the lower end of the release shifting fork is clamped on the release bearing, and the upper end of the release shifting fork is used for being connected with a clutch boosting wheel cylinder push rod. The size is smaller, and the problem of limited torque transmission function is solved.

Description

Pull-type clutch separating device

Technical Field

The invention relates to the technical field of clutches, in particular to a pull type clutch separating device.

Background

In the domestic heavy truck industry, when a whole vehicle is matched with a manual transmission, different types of clutches, namely pull clutches or push clutches, are often selected according to torque and cost. The two clutches have different characteristics, the push-type clutch has simple structure, lower manufacturing cost and installation cost and relatively limited torque transmission capacity; under the same separating force, the load born by the separating bearing of the pull type clutch separating device is smaller than that of the push type clutch, so the torque transferring capacity is stronger, the larger torque transferring requirement can be met, the lift is good, the separation is thorough, and the cost is relatively higher.

However, with the development of science and technology, the whole vehicle has a greater demand for power performance and power assembly space, the existing pull type clutch separating device can meet the matching requirement of large torque, but occupies a larger space, while the push type clutch has an arrangement form that the space meets the requirement, but the torque and the strength cannot meet the requirement, so the existing clutch separating device cannot meet the requirements of load and space arrangement at the same time.

Disclosure of Invention

Aiming at the problems in the prior art, the pull-type clutch separating device provided by the invention is smaller in size, can save part of installation space for the whole vehicle, is used for arranging other parts, and can also effectively improve the trafficability of the whole vehicle.

The invention is realized by the following technical scheme:

a pull-type clutch release device is characterized by comprising a clutch shell, a release fork bracket, a release fork shaft, a release bearing and an input shaft bearing cover;

the clutch shell is of a hemispherical structure, an input shaft bearing cover is axially arranged in the clutch shell, one end, extending into the clutch shell, of the input shaft bearing cover is used for being connected with the transmission body, the release bearing is sleeved on the outer wall of the input shaft bearing cover, and one end, opposite to the transmission body, of the release bearing is used for being connected with a clutch release finger;

the clutch device is characterized in that the separation shifting fork bracket comprises an upper bracket and a lower bracket, the upper bracket is positioned above the clutch shell, the lower bracket is arranged higher than the input shaft bearing cover, the lower bracket is arranged deep into the clutch shell, the lower bracket comprises two clamping arms which are arranged at intervals and in parallel, the upper end of the separation shifting fork is arranged in the upper bracket of the separation shifting fork bracket, the lower end of the separation shifting fork is a clamping piece, the middle part of the separation shifting fork is arranged in the clamping arms of the separation shifting fork bracket, and the separation shifting fork shaft penetrates through the clutch shell, the clamping arms of the separation shifting fork bracket and the middle part of the separation shifting fork;

the clamping piece at the lower end of the separation shifting fork is clamped on the separation bearing, and the upper end of the separation shifting fork is used for being connected with a clutch boosting wheel cylinder push rod.

Preferably, the clutch further comprises a joint bearing, and the joint bearing is arranged between the middle parts of the release fork shaft and the release fork.

Preferably, the clutch further comprises a hand hole cover arranged on the outer side of the clutch housing, and the hand hole cover is positioned below the input shaft bearing cover.

Preferably, a partition plate is arranged at the joint of the upper support and the lower support of the separation fork support and is fixed on the shell of the clutch shell through bolts.

Preferably, the release bearing is slidably disposed on an outer wall of the input shaft bearing cover.

Preferably, one end of the input shaft bearing cover, which extends into the clutch housing, is fixedly arranged with the transmission body through a bolt.

Preferably, the upper end of the separation shifting fork is provided with a groove with an opening facing the clutch boosting wheel cylinder push rod, and the clutch boosting wheel cylinder push rod is tightly propped against the groove at the upper end of the separation shifting fork.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the pull-type clutch separating device, the input shaft bearing cover arranged in the clutch shell along the axial direction can penetrate into one end of the clutch shell to be connected with the transmission body, and the release bearing is sleeved on the outer wall of the input shaft bearing cover and can be connected with the clutch release finger; the release fork support can be provided with a release fork, so that the release fork is assembled in the clutch shell through a release fork shaft, and the clamping piece at the lower end of the release fork can clamp the release bearing, so that under the pushing of the clutch boosting cylinder push rod, the release fork can push the release bearing to slide towards one side of the transmission body on the input shaft bearing cover, and the release bearing drives the clutch to move towards the same direction, so that the clutch is released. The pull type clutch separating device is smaller in size, can save part of installation space for the whole vehicle, is used for arranging other parts, can effectively improve the trafficability of the whole vehicle, and solves the problem that the function of transmitting torque of the push type clutch separating device is limited.

Drawings

Fig. 1 is a schematic view of the assembly of a clutch release device according to the present invention with a transmission body.

Fig. 2 is an exploded view of the clutch release apparatus according to the present invention.

Fig. 3 is a schematic view of the connection between the release fork and the release bearing according to the present invention.

In the figure: the clutch comprises a clutch shell 1, a release fork bracket 2, a release fork 3, a release fork shaft 4, a joint bearing 5, a release bearing 6, an input shaft bearing cover 7, a handhole cover 8 and a transmission body 9.

Detailed Description

The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.

The invention relates to a pull-type clutch separating device which is applied to an eight-gear gearbox, is assembled between a transmission and a clutch and can be matched with an eight-gear pull-type clutch of 1050-1300 Nm and above, and comprises a clutch shell 1, a separation fork bracket 2, a separation fork 3, a separation fork shaft 4, a joint bearing 5, a separation bearing 6, an input shaft bearing cover 7 and a handhole cover 8 as shown in figure 1;

the pull-type clutch release device connects the clutch housing 1 to the transmission body by a bolt. The separating shifting fork 3 is assembled on the separating shifting fork support 2 through a separating shifting fork shaft 4 and a joint bearing 5, the separating shifting fork shaft 4 is installed on the separating shifting fork support 1, the separating shifting fork 3 is installed on the separating shifting fork shaft 4, the joint bearing 5 is arranged between the separating shifting fork 3 and the separating shifting fork shaft 4, and the separating shifting fork 3 can axially swing in the input shaft bearing cover 7. The release fork support 2 is connected to the clutch housing 1 by bolts. One end of the input shaft bearing cover 7 is assembled to the transmission body 9 by a bolt. The release bearing 6 is sleeved on the input shaft bearing cover 7, further, the release bearing 6 is arranged on the outer wall of the input shaft bearing cover 7 in a sliding mode, the release bearing 6 can be driven to slide left and right on the input shaft bearing cover 7 through the swinging of the release fork 3, the release bearing 6 is connected with the clutch release finger, and therefore the release bearing 6 can be pushed through the release fork 3 to pull the clutch release finger. The handhole cover 8 facilitates clutch installation and adjustment of the clutch for after-market maintenance.

Specifically, the clutch housing 1 is of a hemispherical structure, an input shaft bearing cover 7 is axially arranged in the clutch housing 1, one end, extending into the clutch housing 1, of the input shaft bearing cover 7 is used for being connected with a transmission body 9, a release bearing 6 is sleeved on the outer wall of the input shaft bearing cover 7, and one end, opposite to the transmission body 9, of the release bearing 6 is used for being connected with a clutch release finger;

the clutch release device comprises a clutch shell 2, a clutch release fork support 2 and a clutch release fork, wherein the clutch release fork support 2 comprises an upper support and a lower support, the upper support is positioned above the clutch shell 1, the lower support is arranged higher than an input shaft bearing cover 7, the lower support is arranged deep into the clutch shell 1, the lower support comprises two clamping arms which are arranged at intervals and in parallel, the upper end of the clutch release fork 3 is arranged in the upper support of the clutch release fork support 2, the lower end of the clutch release fork 3 is a clamping piece, the middle part of the clutch release fork 3 is arranged in the clamping arms of the clutch release fork support 2, and a release fork shaft 4 penetrates through the clutch shell 1, the clamping arms of the clutch release fork support 2 and the;

the clamping piece at the lower end of the separation shifting fork 3 is clamped on the separation bearing 6, and the upper end of the separation shifting fork 3 is used for being connected with a clutch boosting wheel cylinder push rod.

In addition, the joint bearing 5 is arranged between the middle parts of the separating fork shaft 4 and the separating fork 3; the clutch cover further comprises a hand hole cover 8 arranged on the outer side of the clutch housing 1, and the hand hole cover 8 is positioned below the input shaft bearing cover 7. And a partition plate is arranged at the joint of the upper support and the lower support of the separation fork support 2 and is fixed on the shell of the clutch shell 1 through bolts. The upper end of the separation shifting fork 3 is provided with a groove with an opening facing the clutch boosting wheel cylinder push rod, and the clutch boosting wheel cylinder push rod is tightly propped in the groove at the upper end of the separation shifting fork 3.

When the release mechanism assembly of the present invention is in the position shown in FIG. 1, the clutch is engaged. When the whole vehicle needs to be separated from the clutch, the clutch boosting wheel cylinder push rod is required to push the separation shifting fork 3 to rotate, at the moment, the clutch boosting wheel cylinder push rod pushes the separation shifting fork 3 tightly from the orientation position of the uppermost ball socket of the separation shifting fork 3, the separation shifting fork 3 pushes the separation bearing 6 to slide to one side of the transmission body 9 on the input shaft bearing cover 7, and the separation bearing 6 drives the clutch to separate and point to the same direction to move, so that the clutch is separated.

Claims

1. A pull-type clutch release device is characterized by comprising a clutch housing (1), a release fork bracket (2), a release fork (3), a release fork shaft 4, a release bearing (6) and an input shaft bearing cover (7);

the clutch comprises a clutch shell (1), an input shaft bearing cover (7) is axially arranged in the clutch shell (1), one end, extending into the clutch shell (1), of the input shaft bearing cover (7) is used for being connected with a transmission body (9), a release bearing (6) is sleeved on the outer wall of the input shaft bearing cover (7), and one end, opposite to the transmission body (9), of the release bearing (6) is used for being connected with a clutch release finger;

the clutch is characterized in that the separation shifting fork bracket (2) comprises an upper bracket and a lower bracket, the upper bracket is positioned above the clutch housing (1), the lower bracket is arranged higher than the input shaft bearing cover (7), the lower bracket is arranged deep into the clutch housing (1), the lower bracket comprises two clamping arms which are arranged at intervals and in parallel, the upper end of the separation shifting fork (3) is arranged in the upper bracket of the separation shifting fork bracket (2), the lower end of the separation shifting fork (3) is a clamping piece, the middle part of the separation shifting fork (3) is arranged in the clamping arms of the separation shifting fork bracket (2), and the separation shifting fork shaft (4) penetrates through the clutch housing (1), the clamping arms of the separation shifting fork bracket (2) and the middle part of the separation shifting fork (3);

the clamping piece at the lower end of the separation shifting fork (3) is clamped on the separation bearing (6), and the upper end of the separation shifting fork (3) is used for being connected with a clutch boosting wheel cylinder push rod.

2. The pull-type clutch release device according to claim 1, further comprising a knuckle bearing (5), wherein the knuckle bearing (5) is provided between the release fork shaft (4) and the release fork (3) at a middle portion thereof.

3. The pull-type clutch release device according to claim 1, further comprising a hand hole cover (8) provided outside the clutch housing (1), wherein the hand hole cover (8) is located below the input shaft bearing cover (7).

4. The pull type clutch release device according to claim 1, wherein a partition plate is provided at a joint of an upper bracket and a lower bracket of the release fork bracket (2), and the partition plate is fixed to a housing of the clutch housing (1) by bolts.

5. The pull-type clutch release apparatus according to claim 1, wherein the release bearing (6) is slidably provided on an outer wall of the input shaft bearing cover (7).

6. The pull-type clutch release apparatus according to claim 1, wherein one end of the input shaft bearing cap (7) penetrating into the clutch housing (1) is fixedly provided to the transmission body (9) by a bolt.

7. The pull-type clutch release device according to claim 1, wherein the upper end of the release fork (3) is provided with a groove with an opening facing the clutch boosting cylinder push rod, and the clutch boosting cylinder push rod is tightly pressed in the groove at the upper end of the release fork (3).