Axially moving tripod constant velocity joint

Abstract

The utility model provides an axial movement tripod constant velocity universal joint, and relates to the technical field of universal joints, the axial movement tripod constant velocity universal joint comprises a housing, the inner side of the housing is provided with a three-column groove rubber pad used for damping, the three-column groove rubber pad is fixedly connected with a plurality of uniformly arranged connecting plates through bolts, and the connecting plates are fixedly connected with the housing through bolts. Pull ropes corresponding to the connecting plates one to one in position and number are slidably embedded in the side wall of the shell, clamping pins are arranged between the pull ropes and the corresponding connecting plates, a tripod universal joint is placed in a three-column-groove rubber pad, and when vibration impact is generated in work, the tripod universal joint is not prone to falling off when vibration impact is generated. The tripod universal joint firstly applies impact force to the three-column-groove rubber pad, the impact force is buffered, one end of the three-column-groove rubber pad is fixed through the clamping pin and the connecting plate, and the three-column-groove rubber pad can be prevented from falling off from the shell in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of universal joint, especially relates to axial movement three ball pin constant velocity universal joint. BACKGROUND

[0002] The axial movement three ball pin constant velocity universal joint is a kind of special universal joint, and the universal joint is mainly used in some transmission systems with complex working conditions.

[0003] Therefore, the axial movement three ball pin constant velocity universal joint structure of prior art, the publication number is: CN216975568U, mainly includes three column slot shell, shaft baffle, three ball pin universal joint, intermediate shaft and mobile end dust cover, the raceway of three column slot shell is provided with opening, three ball pin universal joint is installed on the raceway in three column slot shell;Three column slot shell is equipped with stamping sheath, three ball pin universal joint is sleeved on the center shaft and is limited by the raceway of three column slot shell baffle, is opened, not only realizes three column slot shell part lightweight design, and can realize three column slot shell part medium frequency heat treatment after using machining mode to eliminate heat treatment raceway deformation, realizes three column slot shell, three ball pin universal joint interchange requirement.Three column slot shell end face installs connecting sleeve, and connecting sleeve designs fender structure, solves three ball pin universal joint from three column slot shell raceway slip-off phenomenon.

[0004] The axial movement three ball pin constant velocity universal joint is composed of ball pin, raceway and the like, and can realize constant velocity transmission and axial movement, but when it moves, noise may be generated due to component friction and wear and vibration impact in work, which affects the use comfort and may indicate component failure. INVENTION CONTENTS

[0005] The utility model aims at solving the problems in prior art and provides an axial movement three ball pin constant velocity universal joint.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the axial movement three ball pin constant velocity universal joint, including the shell, the shell inner side is provided with three column slot rubber pad for shock absorption, the three column slot rubber pad is fixedly connected with a plurality of evenly arranged connecting plates through bolts, the shell side wall is slidably embedded with a plurality of pull ropes corresponding to the position and number of connecting plates, a clamping pin is arranged between the corresponding pull rope and the connecting plate, the clamping pin rod part is slidably inserted with the connecting plate, and the head is fixed with the pull rope one end, the pull rope other end is fixed with the hook slidably inserted with the shell, the other end of the three column slot rubber pad is provided with the sealing plate clamped with the shell, and a plurality of clamping rods for clamping with the hook are fixedly connected on the sealing plate.

[0007] Preferably, the head of the clamping pin is fixedly connected with a spring between the shell inner side, and the spring is installed in the pull rope sleeve.

[0008] Preferably, one end of the outer shell is fixedly connected to several uniformly arranged limiting plates. The limiting plates have limiting holes on the side facing the three-column groove rubber pad. The outer side of the sealing plate extends outward with several flanges that correspond one-to-one with the position and number of the limiting plates. The surface of the flanges extends outward to form protrusions for engaging with the limiting holes.

[0009] Preferably, an annular plate is provided between the sealing plate and the three-column groove rubber gasket, and a spring is also fixedly connected between the annular plate and the inner side of the outer shell.

[0010] Preferably, it also includes a central shaft, the sealing plate and the central shaft are sleeved and clearance-fitted, a sealing cover is provided between the sealing plate and the central shaft, a fixing ring is fixedly connected to the outer side of the sealing cover and fixedly connected to the sealing plate, and the inner side of the sealing cover is fixedly sleeved with the central shaft by a clamp.

[0011] Preferably, there are three connecting plates and three limiting plates.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a three-column groove rubber pad, the three-ball pin universal joint is placed inside the three-column groove rubber pad. When vibration and impact occur during operation, the three-ball pin universal joint will first apply the impact force to the three-column groove rubber pad, buffering the impact force and reducing the noise. Furthermore, by using the snap-fit ​​pin and connecting plate, one end of the three-column groove rubber pad is fixed, which can prevent the three-column groove rubber pad from falling out of the outer shell during use.

[0014] 2. In this utility model, the sealing plate can play a sealing role to prevent the lubricant from falling out of the shell. The locking rod fixed on it can lock the locking rod with the hook and drive the pull rope to move. The pull rope can pull the locking pin to move. When the locking pin moves up, the locking pin disengages from the connecting plate, so that the three-column groove rubber pad can be pulled out of the shell. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of the axially movable three-ball pin constant velocity universal joint proposed in this utility model is shown.

[0016] Figure 2 This is a three-dimensional structural diagram of the sealing plate in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the three-column groove rubber pad in this utility model;

[0018] Figure 4 In this utility model Figure 1 Cross-sectional view;

[0019] Figure 5 It is the three-dimensional structure schematic view of the flange in the utility model;

[0020] Figure 6 It is Figure 4 The enlarged view of A in the middle;

[0021] Figure 7 It is Figure 4 The enlarged view of B in the middle.

[0022] Legend: 1, center shaft; 2, shell; 3, sealing plate; 4, limiting plate; 5, sealing cover; 6, protruding block; 7, fixed ring; 8, limiting hole; 9, three-column groove rubber pad; 10, connecting plate; 11, hook; 12, pull rope; 13, spring; 14, ring plate; 15, flange; 16, clamping rod; 17, clamping pin. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples.It should be noted that the examples and features in the examples of the present application can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific examples disclosed in the following description.

[0025] As Figures 1-7 The axial movement three-ball pin constant velocity universal joint shown in the figure, including shell 2, the inner side of shell 2 is provided with three-column groove rubber pad 9 for damping, three-column groove rubber pad 9 is fixedly connected with a plurality of evenly arranged connecting plates 10 by bolts, the side wall of shell 2 is slidably embedded with pull rope 12 corresponding to the position and number of connecting plate 10, the corresponding pull rope 12 and connecting plate 10 are both provided with clamping pin 17, the rod part of clamping pin 17 is slidably inserted with connecting plate 10, the head is fixed with one end of pull rope 12, the other end of pull rope 12 is fixed with hook 11 slidably inserted with shell 2, the other end of three-column groove rubber pad 9 is provided with sealing plate 3 clamped with shell 2, sealing plate 3 is fixedly connected with a plurality of clamping rods 16 for clamping with hook 11, the head of clamping pin 17 and the inner side of shell 2 are fixedly connected with spring 13, and spring 13 and pull rope 12 are installed in a sleeve.

[0026] In the technical solution, the three-ball pin universal joint is placed in the three-column groove rubber pad 9, and when a shock occurs during work, the three-ball pin universal joint first bears the impact force on the three-column groove rubber pad 9, thereby buffering the impact force, and the outer lateral cross section of the three-column groove rubber pad 9 is matched with the inner lateral cross section of the shell 2, and the inner lateral cross section of the three-column groove rubber pad 9 is matched with the outer lateral cross section of the three-ball pin.

[0027] Further, the sealing plate 3 is provided, which can play a sealing role, and when counterclockwise rotation occurs, the clamping rod 16 is clamped with the hook 11, and the pull rope 12 is driven to move, the pull rope 12 can drive the clamping pin 17 to move, when the clamping pin 17 is lifted, the clamping pin 17 is separated from the connecting plate 10, so that the three-column groove rubber pad 9 can be pulled out of the shell 2.

[0028] As shown in Figure 3 and Figure 5 , the shell 2 is fixedly connected with a plurality of evenly arranged limiting plates 4 at one end, a limiting hole 8 is formed in the side of the limiting plate 4 facing the three-column groove rubber pad 9, a plurality of flanges 15 corresponding in position and number to the limiting plates 4 extend outward from the outer side of the sealing plate 3, the surface of the flange 15 extends outward to form a protrusion 6 for clamping with the limiting hole 8, and the ring plate 14 is arranged between the sealing plate 3 and the three-column groove rubber pad 9. The spring 13 is also fixedly connected between the ring plate 14 and the inner side of the shell 2.

[0029] In the technical solution, during installation, the flange 15 and the limiting plate 4 are placed in a staggered manner, and the ring plate 14 is pressed towards the direction of the three-ball pin universal joint, so that the spring 13 located at the ring plate 14 is contracted. At this time, the distance between the ring plate 14 and the limiting plate 4 is increased, the sealing plate 3 is rotated, the flange 15 is moved to coincide with the limiting plate 4, and the protrusion 6 is clamped into the limiting hole 8.

[0030] As shown in Figure 2 , it also includes a center shaft 1, the sealing plate 3 and the center shaft 1 are connected in a clearance fit, a sealing cover 5 is arranged between the sealing plate 3 and the center shaft 1, the sealing cover 5 is fixedly connected with the fixing ring 7 fixedly connected with the sealing plate 3 on the outer side, and the sealing cover 5 is fixedly sleeved with the center shaft 1 on the inner side through a clamp.

[0031] In the technical solution, the cooperation of the sealing cover 5 and the sealing plate 3 can make the center shaft 1 move in any direction.

[0032] As shown in Figure 2 , the connecting plate 10 and the limiting plate 4 are each provided with three.

[0033] Working principle: when installing, first put the three-column slot rubber pad 9 into the shell 2 and put the three-ball pin universal joint into the three-column slot rubber pad 9, pull the pull rope 12, drive the clamping pin 17 to lift, push the connecting plate 10 to the specified position, loosen the pull rope 12, the clamping pin 17 is clamped with the connecting plate 10 under the action of the spring 13, one end of the three-column slot rubber pad 9 is fixed, which can prevent the three-column slot rubber pad 9 from falling off from the shell 2 during use, and install the sealing plate 3 after the lubricating liquid is poured, when installing, first misplace the flange 15 and the limiting plate 4, press the ring plate 14 towards the three-ball pin universal joint, make the spring 13 and the three-column slot rubber pad 9 at the ring plate 14 shrink, rotate the sealing plate 3, make the flange 15 move to coincide with the limiting plate 4, and clamp the lug 6 into the limiting hole 8, so that the sealing plate 3 is installed.

[0034] It is further supplemented that the three-column slot rubber pad 9 is made of butyronitrile rubber material and is integrally die-cast into a three-column slot shape.

[0035] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the protection scope of the present application technical scheme.

Claims

1. An axially movable three-ball pin constant velocity universal joint, including a housing (2), characterized in that: The inner side of the outer shell (2) is provided with a three-column groove rubber pad (9) for shock absorption. The three-column groove rubber pad (9) is fixedly connected to several evenly arranged connecting plates (10) by bolts. The side wall of the outer shell (2) is slidably embedded with a pull rope (12) that corresponds to the position and number of the connecting plates (10). A locking pin (17) is provided between the corresponding pull rope (12) and the connecting plate (10). The rod of the locking pin (17) is slidably inserted into the connecting plate (10), and the head is fixed to one end of the pull rope (12). The other end of the pull rope (12) is fixed with a hook (11) that is slidably inserted into the outer shell (2). The other end of the three-column groove rubber pad (9) is provided with a sealing plate (3) that is locked into the outer shell (2). Several locking rods (16) for locking into the hook (11) are fixedly connected to the sealing plate (3).

2. The axially movable three-ball pin constant velocity universal joint according to claim 1, characterized in that: A spring (13) is fixedly connected between the head of the snap pin (17) and the inner side of the outer shell (2), and the spring (13) and the pull rope (12) are sleeved and installed.

3. The axially movable three-ball pin constant velocity universal joint according to claim 1, characterized in that: One end of the outer shell (2) is fixedly connected to several uniformly arranged limiting plates (4). The limiting plate (4) has a limiting hole (8) on the side facing the three-column groove rubber pad (9). The outer side of the sealing plate (3) has several flanges (15) that correspond one-to-one with the position and number of the limiting plate (4). The surface of the flange (15) extends outward to form a protrusion (6) for engaging with the limiting hole (8).

4. The axially movable three-ball pin constant velocity universal joint according to claim 1, characterized in that: A ring plate (14) is provided between the sealing plate (3) and the three-column groove rubber pad (9), and a spring (13) is also fixedly connected between the ring plate (14) and the inner side of the outer shell (2).

5. The axially movable three-ball pin constant velocity universal joint according to claim 1, characterized in that: It also includes a central shaft (1), the sealing plate (3) and the central shaft (1) are sleeved and gap-fitted, a sealing cover (5) is provided between the sealing plate (3) and the central shaft (1), a fixing ring (7) is fixedly connected to the outside of the sealing cover (5) and fixedly connected to the sealing plate (3), and the inside of the sealing cover (5) is fixedly sleeved with the central shaft (1) by a clamp.

6. The axially movable three-ball pin constant velocity universal joint according to claim 1, characterized in that: The connecting plate (10) and the limiting plate (4) are each provided in three parts.

Images