CN218207760U

CN218207760U - Derailleur separation shift fork supporting mechanism and derailleur

Info

Publication number: CN218207760U
Application number: CN202220722875.2U
Authority: CN
Inventors: 郑俊峰; 王峰; 丁义亮; 黄轶明
Original assignee: Zhejiang Wanliyang Transmission Co Ltd
Current assignee: Zhejiang Wanliyang Transmission Co Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2023-01-03
Anticipated expiration: 2032-03-29

Abstract

The utility model provides a derailleur separation shift fork supporting mechanism includes separator casing and separation shift fork part at least, and in the separator casing was located to the separation shift fork part, be equipped with the screw hole on the separator casing, the screw hole was connected with the shift fork supporting pin, and the tip of shift fork supporting pin inserted the separator casing and is connected with separation shift fork part. The shifting fork supporting pin comprises a rod body part, and the outer surface of the rod body part is provided with an external thread matched with the threaded hole. In this scheme, the partial length that the shift fork supporting pin is located the separator casing is adjustable, realizes the function of adjusting the initial position of separation shift fork part to the engine of the different models of matching. This scheme still provides a derailleur, has installed above-mentioned derailleur separation shift fork supporting mechanism.

Description

Derailleur separation shift fork supporting mechanism and derailleur

Technical Field

The utility model relates to a derailleur field, concretely relates to derailleur separation shift fork supporting mechanism to and a derailleur.

Background

Because of the variety of engine types, the transmission types matched with the engine are also diverse. In the transmission, a release fork is connected with a release bearing, and the position of the release bearing can be adjusted by pushing the release fork, so that separation and reunion are realized.

The release fork is always provided with an initial position. In the prior art, a support pin is inserted into a transmission to support a release fork, thereby positioning an initial position of the release fork. However, since the original position of the separation fork is determined by the support pins, the original position of the separation fork needs to be adjusted by using support pins with different lengths to meet the requirements of different types of engines, which results in the need to install support pins with different lengths for different engine requirements, thereby resulting in complexity in the process. In addition, the support pin of the existing scheme is fixed with the transmission shell, and the initial position of the separation shifting fork is fixed after the support pin is fixed, so that the matching degree of the transmission and the engine is very single, and the universality is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in the existing transmission, the initial position of the separation fork is determined by the length of the supporting pin, the supporting pin with different length corresponds to different initial positions, so that the supporting pin with different length needs to be installed for matching different engines, the process is complex, and the initial position of the separation fork cannot be changed once the supporting pin is installed, so that the universality of the transmission is influenced.

In order to solve the technical problem, the utility model provides a technical scheme as follows:

the utility model provides a gearbox separation fork supporting mechanism, at least comprising a separator shell and a separation fork component, wherein the separation fork component is arranged in the separator shell, the separator shell is provided with a threaded hole, the threaded hole is connected with a fork supporting pin, and the end part of the fork supporting pin is inserted into the separator shell and is connected with the separation fork component; the shifting fork supporting pin comprises a rod body part, and external threads matched with the threaded hole are arranged on the outer surface of the rod body part.

Preferably, the outer surface of the rod body part is also provided with a plurality of scale grooves.

Preferably, the rod body is sleeved with a nut.

Further, the nut is a flange nut.

Preferably, a round head is arranged at the end of the shift fork supporting pin, a round hole matched with the round head is formed in the separation shift fork part, and the round head is connected with the round hole.

Preferably, a release bearing part is arranged in the separator housing, the release fork part is connected with the release bearing part, and an elastic cylindrical pin is connected between the release bearing part and the release fork part.

The advantage of above-mentioned scheme lies in, because threaded connection between shift fork supporting pin and the screw hole, consequently can screw in or screw out shift fork supporting pin, reaches the purpose of the length of adjustment shift fork supporting pin insertion separator casing, and then reaches the purpose of adjustment separation shift fork part initial position to the engine of the different models of adaptation. Therefore, the universality of the transmission is enhanced, a large number of support pins with different lengths do not need to be produced, and the production cost is saved.

The scheme also provides a transmission, which at least comprises the transmission release fork supporting mechanism.

Drawings

FIG. 1 illustrates a half sectional view of a preferred embodiment of a transmission release fork support mechanism;

FIG. 2 is a front view of the preferred embodiment;

FIG. 3 is a schematic view showing a structure of a fork support pin;

FIG. 4 is a schematic structural view of the backside of the preferred embodiment;

description of reference numerals: 1-separator housing, 11-threaded hole, 2-release bearing member, 21-elastic cylindrical pin, 3-release fork member, 31-support pin joint, 4-fork support pin, 40-round head, 41-rod body, 411-external thread, 412-scale groove, 42-hexagon socket, 5-nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, an integral connection, or a detachable connection; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention in specific situations.

As shown in fig. 1 and 2 and fig. 4, a preferred embodiment of the transmission release fork supporting mechanism includes a release case 1, a release fork member 3, a release bearing member 2, and a fork supporting pin 4. The release bearing part 2 is arranged in the separator shell 1, and the release fork part 3 is connected with the release bearing part 2. The specific structure of the release fork component 3 and the release bearing component 2 belongs to the prior art, and no further description is given here. The surface of the separator housing 1 is provided with a threaded hole 11, the structure of the fork support pin 4 is as shown in fig. 3, the outer surface of the rod body part 41 of the fork support pin 4 is provided with an external thread adapted to the threaded hole 11, and the fork support pin 4 is in threaded connection with the threaded hole 11. The end of the fork support pin 4 is inserted into the separator housing 1 and is fixedly coupled to the separator fork member 3. The fork support pin 4 can abut against the release fork member 3, thereby positioning the initial position of the release fork member 3. By rotating the fork support pin 4, the length of the part of the fork support pin 4 located inside the separator housing 1 can be adjusted, thereby functioning to adjust the initial position of the separator fork member 3.

In order to facilitate confirmation of the amount of rotation of the fork support pin 4, a scale groove 412 is further provided on the outer surface of the rod body portion 41. The amount of the screw-in of the fork support pin 4 may be determined with reference to the index represented by the scale groove 412, thereby confirming the initial position of the adjusted release fork member 3.

In order to prevent the shift fork supporting pin 4 from rotating to cause the shift fork member 3 to deviate, the rod body 41 is further externally sleeved with a nut 5, after the shift fork supporting pin 4 is adjusted, the nut 5 is screwed, the shift fork supporting pin 4 is locked by the nut 5, and the shift fork supporting pin 4 is effectively prevented from rotating. The nut 5 is preferably a flange nut, which helps to increase friction with the separator case 1, thereby enabling the fork support pin 4 to be locked more stably.

Considering that the fork support pin 4 needs to be rotated when adjusted, in order to avoid interference with the separation fork member 3 on the fork support pin 4 when the fork support pin 4 is rotated, the end of the fork support pin 4 is provided with a round head 40, and meanwhile, the separation fork member 3 is provided with a round hole adapted to the round head 40, and the round head 40 is connected in the round hole. The round head part 40 can freely rotate in the round hole, thereby ensuring that the release fork member 3 does not interfere with the rotation of the fork support pin 4 when the fork support pin 4 is rotated.

The separation fork component 3 is connected with the separation bearing component 2, and the separation fork component 3 can be pushed to adjust the specific position of the separation bearing component 2 in the speed changer, so that the separation of the clutch is realized. Considering that the clutch needs to be adjusted at any time, the release fork component 3 is connected with the release bearing component 2 through the elastic cylindrical pin, and the elastic cylindrical pin has better shearing resistance, so that the transmission release fork supporting mechanism has longer service life.

The transmission release fork supporting mechanism is arranged in a transmission, plays a role in clutch adjustment, and can adjust the initial position of the release fork component 3 by adjusting the screwing amount of the fork supporting pin 4, so that the clutch can be well matched with engines of different types, and the clutch has wider applicability.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission separation shifting fork supporting mechanism at least comprises a separator shell (1) and a separation shifting fork component (3), wherein the separation shifting fork component is arranged in the separator shell, and is characterized in that a threaded hole (11) is formed in the separator shell and is connected with a shifting fork supporting pin (4), and the end part of the shifting fork supporting pin is inserted into the separator shell and is connected with the separation shifting fork component; the shift fork supporting pin comprises a rod body (41), wherein an external thread (411) matched with the threaded hole is arranged on the outer surface of the rod body.

2. The transmission release fork support mechanism of claim 1, wherein the lever body further includes a plurality of scale grooves (412) formed on an outer surface thereof.

3. Transmission release fork support according to claim 1, characterized in that the rod body is provided with a nut (5) in a sleeve.

4. The transmission release fork support mechanism of claim 3, wherein the nut is a flange nut.

5. The transmission release fork support mechanism according to claim 1, wherein the fork support pin is provided at an end thereof with a round head (40), and the release fork member is provided with a round hole fitted with the round head, the round head being connected with the round hole.

6. A transmission release fork support mechanism according to any one of claims 1 to 5, wherein a release bearing part (2) is provided within the release housing, the release fork part being connected to the release bearing part, and a resilient cylindrical pin being connected between the release bearing part and the release fork part.

7. Transmission, characterized in that it comprises at least a transmission release fork support according to any of claims 1 to 6.