CN215830994U

CN215830994U - Cross axle type universal joint

Info

Publication number: CN215830994U
Application number: CN202122407345.7U
Authority: CN
Inventors: 王维康
Original assignee: Fujian Rong Shun Machinery Manufacturing Co ltd
Current assignee: Fujian Rong Shun Machinery Manufacturing Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-02-15
Anticipated expiration: 2031-10-08

Abstract

The utility model relates to a power transmission device, in particular to a cross axle type universal joint, which comprises a shaft body, a shaft neck and a shaft sleeve, wherein the inner side surface of the shaft sleeve is provided with an installation groove in a surrounding manner, and a roller pin is arranged in the installation groove; the outer side surface of the bottom of the journal is provided with a clamping groove in an annular structure, a sliding block in a U-shaped structure is arranged in the clamping groove in a matched mode, the sliding block comprises a sliding block main body matched with the clamping groove and two clamping rings with L-shaped cross sections in the vertical direction, the two clamping rings are arranged on the upper side surface and the lower side surface of the sliding block main body in the horizontal direction respectively, the bottom of the inner side surface of the shaft sleeve is provided with a sliding ring in a U-shaped structure, the sliding ring is matched and clamped with the clamping rings, and a U-shaped clamping block is arranged between the clamping rings at the bottom of the inner side of the journal; the utility model not only can effectively solve the sealing problem of lubricating grease between the shaft sleeve and the shaft neck, avoid the leakage phenomenon of the lubricating grease, but also effectively ensure the smooth rotating operation between the shaft sleeve and the shaft neck, simultaneously prolong the service life of the device and reduce the maintenance cost of a user on the device.

Description

Cross axle type universal joint

Technical Field

The utility model relates to a power transmission device, in particular to a cross shaft type universal joint.

Background

The cross-shaft type universal joint is an important application device in mechanical power transmission, and can effectively realize power transmission; the universal joint of the cross shaft type mainly comprises a shaft body main body, a shaft neck and a shaft sleeve, in order to ensure the smooth rotation between the shaft sleeve and the shaft neck, lubricating grease can be filled in the shaft sleeve and the shaft neck, the problem of leakage of the lubricating grease between the shaft sleeve and the shaft neck is solved, a soft rubber ring is arranged between the shaft sleeve and the shaft neck for sealing, however, along with the prolonging of the service life of the universal joint, the rubber ring is extremely easy to wear, the sealing performance is reduced, the lubricating grease leaks, the service life of the universal joint is further influenced, a user needs to go to a mechanical maintenance shop for maintenance or replacement, the labor hour cost of the mechanical maintenance shop is high, and the living cost of the user is increased.

Therefore, there is a need for a novel universal joint with a cross shaft, which can not only effectively solve the problem of sealing the lubricating grease between the shaft sleeve and the shaft neck, avoid the leakage of the lubricating grease, but also effectively ensure the smooth rotation operation between the shaft sleeve and the shaft neck, and at the same time, prolong the service life of the device and reduce the maintenance cost of the device for users.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a cross-axle type universal joint which can effectively solve the sealing problem of lubricating grease between a shaft sleeve and a shaft neck, avoid the leakage phenomenon of the lubricating grease, effectively ensure the smooth rotating operation between the shaft sleeve and the shaft neck, prolong the service life of the device and reduce the maintenance cost of a user on the device.

The utility model adopts the following technical scheme:

a cross axle type universal joint comprises a shaft body, a shaft neck connected with the shaft body and a shaft sleeve sleeved outside the shaft neck, wherein the inner side surface of the shaft sleeve is provided with a mounting groove in a surrounding manner, and a roller pin is arranged in the mounting groove; the lateral surface of axle journal bottom is equipped with the draw-in groove that is loop configuration, the adaptation is equipped with the slider that is "U" type structure in the draw-in groove, the slider includes that the vertical direction cross-section of locating slider main part upper and lower both sides face respectively with the slider main part and the horizontal direction of draw-in groove adaptation is two snap rings of "L" type structure, axle sleeve medial surface bottom is equipped with the sliding ring that is "U" type structure with snap ring adaptation block, the inboard bottom of axle journal is equipped with between the snap ring and is "U" type fixture block, a plurality of balls have been laid around even adaptation between slider and the fixture block.

Further, slider main part and snap ring are integrated into one piece structure, and the bottom of draw-in groove is the arc structure, and the arc structure is personally submitted to the inboard of fixture block.

Furthermore, the ball is of a sphere structure, the inner side surface of the fixture block is of an arc structure, and the radian of the inner side surface of the fixture block is identical to that of the ball.

Preferably, the slider body and the snap ring are both made of hard rubber.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the utility model makes the lubricating grease between the shaft sleeve and the shaft neck difficult to leak to the outside from a series of structural settings by arranging the clamping groove, the sliding block in the U-shaped structure, the sliding ring which is matched and clamped with the clamping ring in the sliding block, the sliding block main body, the clamping block and the rolling ball which is arranged between the sliding block main body and the clamping block, ensures the smooth operation of the shaft sleeve and the shaft neck in the rotating operation process, simultaneously reduces the abrasion between the clamping block and the sliding block to the maximum extent, prolongs the service life of the device and reduces the use and maintenance cost of a user by arranging the rolling ball.

Drawings

FIG. 1 is a schematic perspective view of the present invention 1;

FIG. 2 is a perspective view of FIG. 2;

FIG. 3 is a schematic sectional perspective view of FIG. 1;

FIG. 4 is a schematic cross-sectional perspective view of FIG. 2;

FIG. 5 is a schematic cross-sectional perspective view of FIG. 3;

FIG. 6 is an enlarged perspective view of the present invention in partial section.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1 to 6, a universal joint of cross shaft type includes a shaft body 1, a shaft neck 2 connected to the shaft body 1, and a shaft sleeve 3 sleeved outside the shaft neck 2, wherein an installation groove 31 is formed around an inner side surface of the shaft sleeve 3, and a roller pin 311 is arranged in the installation groove 31; the 2 bottom lateral surfaces of axle journal are equipped with draw-in groove 21 that is the loop configuration, the adaptation is equipped with the slider 4 that is "U" type structure in the draw-in groove 21, slider 4 includes and locates two snap rings 42 that the vertical direction cross-section of 4 main parts upper and lower both sides face is "L" type structure respectively with the slider 4 main part and the horizontal direction of draw-in groove 21 adaptation, 3 medial surface bottoms of axle sleeve are equipped with the sliding ring 5 that is "U" type structure with snap ring 42 adaptation block, 2 inboard bottoms of axle journal are equipped with between snap ring 42 and are "U" type fixture block 6, a plurality of balls 7 have been laid around even adaptation between slider 4 and the fixture block 6.

Referring to fig. 1 to 6, the main body of the slider 4 and the snap ring 42 are of an integrally formed structure, the bottom of the clamping groove 21 is of an arc structure, the ball 7 is of a sphere structure, the inner side surface of the snap ring 6 is of an arc structure, the radian of the inner side surface of the snap ring is identical to that of the ball 7, and the main body of the slider 4 and the snap ring 42 are made of hard rubber.

The working principle is as follows: the utility model forms a space between the main body of the sliding block 4 and the clamping block 6 and between the two clamping rings 42 by arranging the clamping rings 42 and the sliding ring 5 which are mutually matched and clamped, the ball 7 is distributed in the space, lubricating grease between the shaft sleeve 3 and the shaft neck 2 is difficult to pass through the clamping rings 42 and the sliding ring 5 which are mutually matched and clamped, and the space distributed with the ball 7 is arranged, so that even a small amount of lubricating grease seeps out from the clamping rings 42 and the sliding ring 5 which are mutually matched and clamped at the inner side position and can also enter the space distributed with the ball 7 to provide lubrication for the ball 7, the ball 7 in rolling lubrication consumes the small amount of lubricating grease, the probability that the lubricating grease leaks to the external environment through the clamping rings 42 and the sliding ring 5 which are mutually matched and clamped at the outer side position is greatly reduced, and the smooth running of the rotation between the shaft sleeve 3 and the shaft neck 2 is also ensured, the service life of the device is prolonged.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.

Claims

1. The utility model provides a cross shaft type universal joint, includes the axis body main part, overlaps with the axle journal that the axis body main part is connected and establishes the axle sleeve in the axle journal outside, characterized by: an installation groove is formed in the inner side face of the shaft sleeve in a surrounding mode, and a roller pin is arranged in the installation groove; the outer side surface of the bottom of the shaft neck is provided with a clamping groove in an annular structure, a sliding block in a U-shaped structure is arranged in the clamping groove in an adaptive mode, the sliding block comprises a sliding block body matched with the clamping groove and two clamping rings, the two clamping rings are arranged in the sliding block body in an adaptive mode, the vertical direction cross sections of the upper side surface and the lower side surface of the sliding block body are in an L-shaped structure, a sliding ring in the U-shaped structure is arranged at the bottom of the inner side surface of the shaft sleeve in an adaptive mode, the sliding ring is clamped with the clamping rings, a U-shaped clamping block is arranged between the clamping rings at the bottom of the inner side of the shaft neck, and a plurality of balls are distributed between the sliding block and the clamping block in an evenly adaptive mode in an encircling mode.

2. A universal joint cross according to claim 1, wherein: the slider main body and the snap ring are of an integrally formed structure.

3. A universal joint cross according to claim 1 or claim 2 wherein: the bottom of the clamping groove is of an arc-shaped structure.

4. A universal joint cross according to claim 1 or claim 2 wherein: the inner side surface of the clamping block is of an arc-shaped structure.

5. A universal joint cross according to claim 1 or claim 2 wherein: the ball is of a ball structure, the inner side face of the fixture block is of an arc structure, and the radian of the inner side face of the fixture block is identical to that of the ball.

6. A universal joint cross according to claim 1 or claim 2 wherein: the slider main body with the snap ring is the stereoplasm rubber material.