CN216199980U

CN216199980U - Clutch guiding shaft structure

Info

Publication number: CN216199980U
Application number: CN202122640311.2U
Authority: CN
Inventors: 冯志远; 喻春光; 杨德; 廖勇
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-05
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a clutch guide shaft structure, which comprises a guide shaft and an input hub matched with the guide shaft, and is characterized in that: the edge of the end face of one end, matched with the input hub, of the guide shaft is provided with a protrusion, and a ring groove is formed in the position close to the end face and used for mounting a sealing ring; the inner wall of the input hub is provided with a groove and a clamping groove, and the groove is correspondingly matched with the protrusion on the end face of the guide shaft; the sealing ring is in interference fit with the inner wall of the input hub. The utility model can limit the relative rotation of the guide shaft and the input hub in the working process, ensure that the sealing component is not abnormally extruded and abraded, and improve the reliability of the transmission assembly.

Description

Clutch guiding shaft structure

Technical Field

The utility model relates to an automobile transmission, in particular to a clutch guide shaft structure, and particularly relates to an anti-rotation structure of a wet clutch guide shaft of an automatic transmission.

Background

In the working process of the wet clutch of the automatic transmission, due to the reasons of abnormal abrasion of other parts and the like caused by unbalanced rotation and deflection, a guide shaft of the clutch can extend into a crankshaft of an engine during design. As shown in figure 1, in the existing I-shaped clutch guide shaft structure, an I-shaped guide shaft 1 is in interference fit with a sealing ring 2, and after assembly, the I-shaped guide shaft 1 is in clearance fit with an I-shaped input hub 3 of a clutch. Because the cooperation of I type guiding axle and I type input hub is clearance fit, leads to in the course of the work, two components can produce relative rotation, and the sealing washer above the I type guiding axle can receive because of the rotatory unusual extrusion and the wearing and tearing that cause of I type guiding axle for the sealing washer inefficacy or oil leak increases after-sale complaint risk and cost of maintenance. As shown in fig. 2, in the existing guide shaft structure of the ii-type clutch, the ii-type guide shaft and the ii-type input hub are integrated, and the ii-type guide shaft 4 and the ii-type input hub 5 of the clutch are integrated, so that a seal ring is not used, and the problems of seal ring wear and oil leakage can be avoided. Accordingly, there is a need for improvements to existing clutch guide shaft configurations.

CN206918117U discloses an "internal and external mating clutch", comprising: the clutch comprises a clutch drum and a clutch shaft, wherein the middle of the clutch drum is of a convex structure, a through hole is formed in the center of the clutch drum, the clutch shaft is arranged at the through hole of the clutch drum, and a blade plate is arranged on the surface of the clutch shaft. Its simple structure can carry out the built-up connection with inside and outside two clutches through the clutch shaft, and the transmissibility is stronger, and structural stability is higher. But does not address the problem of mating with a guide shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clutch guide shaft structure which can limit relative rotation of a guide shaft and an input hub in the working process, ensure that a sealing component is not abnormally extruded and abraded, and improve the reliability of a transmission assembly.

The utility model relates to a clutch guide shaft structure, which comprises a guide shaft and an input hub matched with the guide shaft, and is characterized in that: the edge of the end face of one end, matched with the input hub, of the guide shaft is provided with a protrusion, and a ring groove is formed in the position close to the end face and used for mounting a sealing ring; the inner wall of the input hub is provided with a groove and a clamping groove, and the groove is correspondingly matched with the protrusion on the end face of the guide shaft; the sealing ring is in interference fit with the inner wall of the input hub.

Furthermore, the guide shaft is connected and matched with the input hub in a nesting mode and is matched with the clamping groove in the inner wall of the input hub through the clamping ring so as to realize axial limiting of the guide shaft.

Further, the shape of the protrusion on the end face of the guide shaft is rectangular, trapezoidal or circular; the shape of the groove on the inner wall of the input hub is matched with the shape of the bulge on the end face of the guide shaft.

Compared with the prior art, the utility model has the following advantages:

because the edge of the end face of one end, matched with the input hub, of the guide shaft is provided with the bulge, and the inner wall of the input hub is provided with the groove matched with the bulge in shape, the bulge is matched with the groove, so that the guide shaft and the input hub are limited to relatively rotate in the working process, the sealing component is prevented from being abnormally extruded and abraded, and the reliability of the transmission assembly is improved;

because the guide shaft and the input hub are of split structures, a bulge is added on the guide shaft and a groove is added on the input hub, no special process is needed for processing, and the manufacturing cost is low.

Drawings

FIG. 1 is a schematic structural diagram of a guide shaft of a conventional type I clutch;

FIG. 2 is a schematic view of a type II conventional clutch pilot shaft;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic view of the construction of the guide shaft of the present invention;

fig. 5 is a schematic view of the input hub structure of the present invention.

In the figure: 1-I type guide shaft, 2-sealing ring, 3-I type input hub, 4-II type guide shaft and 5-II type input hub;

6-guide shaft, 61-bulge, 62-ring groove, 63-sealing ring;

7-input hub, 71-groove, 72-slot;

8-a collar.

Detailed Description

The technical scheme of the utility model is explained in detail in the following with the accompanying drawings.

Referring to fig. 3, 4 and 5, a clutch guide shaft structure is shown, which comprises a guide shaft 6 and an input hub 7 matched with the guide shaft, and is characterized in that: the edge of the end face of one end of the guide shaft 6, which is matched with the input hub 7, is provided with a bulge 61, and the part close to the end face is provided with a ring groove 62, wherein the ring groove 62 is used for installing a sealing ring 63;

the inner wall of the input hub 7 is provided with a groove 71 and a clamping groove 72, and the groove 71 is correspondingly matched with the protrusion 61 on the end surface of the guide shaft 6; the sealing ring 63 is in interference fit with the inner wall of the input hub 7. Thereby rotate spacing to between guiding shaft and the input hub to guarantee that the sealing ring can not receive unusual extrusion and wearing and tearing, increase derailleur assembly structural reliability.

The guide shaft 6 is connected and matched with the input hub 7 in a nesting mode, and is matched with a clamping groove 72 on the inner wall of the input hub 7 through a clamping ring 8, so that the guide shaft 6 is axially limited, and the guide shaft is prevented from axially moving.

The shape of the projection 61 on the end face of the guide shaft 6 is rectangular, trapezoidal or circular; the shape of the inner wall groove 71 of the input hub 7 is adapted to the shape of the projection 61 on the end face of the guide shaft 6.

During the assembly, directly with protruding embedding in the recess of input hub on the guiding axle, this structure rotates spacing between with guiding axle and the input hub to guaranteed that the sealing washer can not receive unusual extrusion and wearing and tearing, increased derailleur assembly structural reliability.

Claims

1. A clutch guide shaft structure comprises a guide shaft (6) and an input hub (7) matched with the guide shaft, and is characterized in that: a bulge (61) is arranged on the edge of the end face of one end, matched with the input hub (7), of the guide shaft (6), a ring groove (62) is arranged at a position close to the end face, and the ring groove (62) is used for installing a sealing ring (63);

a groove (71) and a clamping groove (72) are formed in the inner wall of the input hub (7), and the groove (71) is correspondingly matched with a protrusion (61) on the end face of the guide shaft (6); sealing ring (63) and the inner wall interference fit of input hub (7) to rotate spacing between guiding shaft and the input hub, can not receive unusual extrusion and wearing and tearing in order to guarantee the sealing ring, increase derailleur assembly structural reliability.

2. The clutch guide shaft structure according to claim 1, wherein: the guide shaft (6) is connected and matched with the input hub (7) in a nesting mode, and is matched with a clamping groove (72) in the inner wall of the input hub (7) through a clamping ring (8) to realize axial limiting of the guide shaft (6).

3. The clutch guide shaft structure according to claim 1 or 2, wherein: the shape of the bulge (61) on the end face of the guide shaft (6) is rectangular, trapezoidal or circular; the shape of the inner wall groove (71) of the input hub (7) is matched with the shape of the protrusion (61) on the end face of the guide shaft (6).