CN217152722U

CN217152722U - Non-roller pin type three-ball pin

Info

Publication number: CN217152722U
Application number: CN202220870453.XU
Authority: CN
Inventors: 陈严双
Original assignee: Taizhou Meilong Auto Parts Co ltd
Current assignee: Taizhou Meilong Auto Parts Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-08-09
Anticipated expiration: 2032-04-14

Abstract

The utility model discloses a three ball round pins of no roller pin formula belongs to ball round pin universal joint technical field. The utility model provides a no roller pin formula tripod, includes tripod, round pin axle, ball ring and rotating part, the round pin axle sets up the periphery side of tripod, just the quantity of round pin axle is three, the quantity of ball ring is three, and is three the ball ring overlaps respectively and establishes every the round pin epaxially, every the ball ring orientation one side inner wall of round pin axle has seted up the spacing groove, every the periphery side of round pin axle be equipped with two sets of with spacing groove complex rotating part, every rotating part includes two at least rotating component. The utility model discloses a three ball round pins have replaced the spacing mode of snap ring through rotating part's setting, make ball round pin installation dismantle more convenient, and reduced the friction when ball round pin operation, prolonged the life of ball round pin.

Description

Non-roller pin type three-ball pin

Technical Field

The utility model belongs to the technical field of the ball round pin universal joint, more specifically says, relates to a no roller pin formula tripod.

Background

The universal joint refers to a mechanical structure for realizing power transmission of different shafts by utilizing ball-type connection, and is a very common mechanical part at present. The tripod universal joint belongs to a common quasi-constant velocity universal joint, has the advantages of simple structure, light weight, low cost and the like, and is widely used.

The existing tripod universal joint utilizes the roller pin to realize the rotation of the ball ring on the pin shaft, and the ball ring on the pin shaft is limited by means of the snap ring, when the ball ring runs on the pin shaft, on one hand, the ball ring is easy to collide with the snap ring, so that the ball ring and the pin shaft are abraded, the snap ring is very inconvenient to install and disassemble, on the other hand, the ball ring is easy to cause the abrasion of the roller pin when colliding with the snap ring, because the roller pin is arranged in an integrated mode, the maintenance and the replacement are very inconvenient, and the service life of the pin shaft can be shortened by the worn ball.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a three ball round pins of no roller pin formula, it can make the ball round pin more convenient when installation and dismantlement, and life is longer.

The utility model discloses a no three ball of round pin formula, including tripod, round pin axle, ball ring and rotating part, the round pin axle sets up the periphery side of three ball round pin, just the quantity of round pin axle is three, the quantity of ball ring is three, and is three the ball ring overlaps respectively and establishes every sell epaxial, every the ball ring orientation the spacing groove has been seted up to one side inner wall of round pin axle, every the periphery side of round pin axle be equipped with two sets of with spacing groove complex rotating part, every the rotating part includes two at least runner assembly.

Preferably, the three pin shafts are arranged at equal intervals along the circumferential direction of the three-ball pin.

Preferably, the inner walls of the two sides of the limiting groove far away from the central line of the pin shaft are arranged in a fillet mode.

Preferably, a plurality of the rotating assemblies are arranged at equal intervals along the circumferential direction of the pin shaft.

Preferably, the rotating assembly comprises a cylindrical groove formed in the pin shaft, a wrapping block is connected in the cylindrical groove in a sliding mode, a compression spring is arranged between the wrapping block and the cylindrical groove, and a ball abutted against the limiting groove is arranged in the wrapping block.

Preferably, lubricating oil is filled between each ball and the corresponding wrapping block.

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

1. through the setting of rotatable parts, the cooperation between rotatable parts's ball and spacing groove has realized spacing between ball ring and round pin axle, has guaranteed the stability of ball ring at round pin epaxial installation, has replaced current snap ring locking mode, and the operation is more convenient.

2. The friction between the ball and the limiting groove is reduced by the aid of the wrapping blocks of the rotating parts and the addition of lubricating oil between the balls, abrasion between the ball and the limiting groove is reduced, and the service life of the ball pin is prolonged.

3. Each rotating component comprises at least two rotating assemblies, namely the ball ring is abutted with the pin shaft through at least two balls, when the ball ring runs on the pin shaft, even if one ball is abraded, other balls still keep the stability of sleeving between the ball ring and the pin shaft, and the service life of the ball pin is further prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2 according to the present invention.

The reference numbers in the figures illustrate:

10. a three-pin frame; 11. a ball pin; 12. a ball ring; 13. a limiting groove; 14. a cylindrical groove; 15. wrapping the block; 16. a ball bearing; 17. compressing the spring.

Detailed Description

The first embodiment is as follows: please refer to fig. 1-3, which illustrates a roller-pin-free tripod ball pin, including a tripod 10, three hinge pins 11 are equally spaced along the circumference of the tripod 10 on the outer circumference of the tripod 10, a ball ring 12 is sleeved on each hinge pin 11, a limiting groove 13 is formed on the inner wall of one side of each ball ring 12 facing the ball pin 11, the inner walls of two sides of the limiting groove 13 away from the center line of the hinge pin 11 are rounded, and two sets of rotating components matched with the limiting groove 13 are arranged on the outer circumference of each hinge pin 11.

In this embodiment, each of the rotating members includes at least two rotating assemblies, and the rotating assemblies are equally spaced with respect to the circumferential direction of the pin shaft 11.

Further, the rotating assembly comprises a cylindrical groove 14 formed in the pin shaft 11, the cylindrical groove 14 is formed by sinking the outer periphery of the pin shaft 11 towards the central line direction of the pin shaft 11, a wrapping block 15 is connected in each cylindrical groove 14 in a sliding mode, a compression spring is arranged between the wrapping block 15 and the bottom of the cylindrical groove 14, and a ball 16 abutted against the limiting groove 13 is arranged in the wrapping block 15;

further, lubricating oil is filled between each ball 16 and the corresponding wrapping block 15.

Before assembling the ball ring 12, coating lubricating oil on the inner wall of the wrapping block 15, embedding the balls 16 into the wrapping block 15, after the balls 16 are installed, installing the wrapping block 15 into the cylindrical groove 14, sleeving the ball ring 12 on the pin shaft 11, and when the limiting grooves 13 on the ball ring 12 are aligned with the balls 16 of the two rotating parts, pushing the wrapping block 15 by the compression springs 17 to drive the balls 16 to abut against the limiting grooves 13, so that the ball ring 12 is limited on the pin shaft 11;

through the arrangement of the rotating part, the ball 16 of the rotating part is matched with the limiting groove 13, so that the limiting between the ball ring 12 and the pin shaft 11 is realized, the stability of the installation of the ball ring 12 on the pin shaft 11 is ensured, the existing clamping ring locking mode is replaced, and the operation is more convenient;

the adding of lubricating oil between the wrapping block 15 and the ball 16 of the rotating part reduces the friction between the ball 16 and the limiting groove 13, reduces the abrasion between the ball 16 and the limiting groove 13, prolongs the service life of the ball pin, furthermore, each rotating part comprises at least two rotating assemblies, namely, the ball ring 12 is abutted to the pin shaft 11 through at least two balls 16, even if one ball 16 is abraded when the ball ring 12 runs on the pin shaft 11, the other balls 16 still keep the stability of the sleeving between the ball ring 12 and the pin shaft 11, and further prolongs the service life of the ball pin.

It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

Claims

1. A three ball pins of no roller pin formula which characterized in that: comprises a tripod (10), a pin shaft (11), a ball ring (12) and a rotating part;

the pin shafts (11) are arranged on the outer peripheral side of the three-pin frame (10), and the number of the pin shafts (11) is three;

the number of the ball rings (12) is three, the three ball rings (12) are respectively sleeved on each pin shaft (11), and a limiting groove (13) is formed in the inner wall of one side, facing the pin shaft (11), of each ball ring (12);

and two groups of rotating parts matched with the limiting grooves (13) are arranged on the peripheral side of each pin shaft (11), and each rotating part comprises at least two rotating assemblies.

2. The pinless tripod ball pin of claim 1 wherein: the three pin shafts (11) are arranged at equal intervals along the circumferential direction of the three pin frame (10).

3. The pinless tripod ball pin of claim 1 wherein: the inner walls of two sides of the limiting groove (13) far away from the central line of the pin shaft (11) are arranged in a rounding off mode.

4. The pinless tripod ball pin of claim 1 wherein: the rotating assemblies are arranged at equal intervals along the circumferential direction of the pin shaft (11).

5. The pinless tripod ball pin of claim 1 wherein: the rotating assembly comprises a cylindrical groove (14) formed in the pin shaft (11), a wrapping block (15) is connected to the cylindrical groove (14) in a sliding mode, a compression spring (17) is arranged between the wrapping block (15) and the cylindrical groove (14), and balls (16) abutted against the limiting groove (13) are arranged in the wrapping block (15).

6. The rollerless triple ball pin of claim 5 wherein: lubricating oil is filled between each ball (16) and the corresponding wrapping block (15).