CN217873850U

CN217873850U - Novel no kingpin type cross universal joint

Info

Publication number: CN217873850U
Application number: CN202221919657.4U
Authority: CN
Inventors: 吴剑峰; 张子墩; 游强
Original assignee: Jinjiang Yuande Machinery Manufacturing Co ltd
Current assignee: Jinjiang Yuande Machinery Manufacturing Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-11-22
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses a novel universal joint without roller pins, belonging to the technical field of universal joints, comprising a shaft head of a universal joint and a shaft sleeve sleeved on the shaft head; be equipped with a plurality of annular bosss on the inner wall of axle sleeve, the bottom of boss with the spindle nose is contradicted, and is adjacent form the oil storage tank between the boss, be equipped with logical oil groove on the boss, it makes adjacent oil storage tank intercommunication to lead to the oil groove. The boss on the shaft sleeve directly props against the shaft head, the contact area is large (surface contact), the stress area is large, the bearing area is large, the stress is uniform, the abrasion is small, and the service life is prolonged. Owing to set up the oil storage tank, lead to lubricating oil in the oil storage tank, can lubricate the contact surface, reducing wear to the interval sets up the oil storage tank, and adjacent oil storage tank makes the lubrication more abundant through leading to the oil storage tank intercommunication.

Description

Novel no kingpin type cross universal joint

Technical Field

The utility model relates to a universal joint technical field especially relates to a novel no kingpin type cross axle universal joint.

Background

As is known, a universal joint pin is a mechanical transmission device connected between a power machine and a work machine for transmitting torque. The universal coupling has the advantages of large angle compensation capacity, large bearing capacity, high transmission efficiency and the like, and is widely applied to heavy machinery industries such as metallurgy, mines, petroleum, ships, coal, rubber, paper machinery and the like. In order to reduce the abrasion between the cross shaft and a connecting fork head, a needle bearing is usually arranged on a shaft neck of the cross shaft; the bearing is composed of a shaft sleeve and a needle roller arranged in the shaft sleeve. Because the diameter of the needle roller is small, the contact surface with the shaft neck or the inner wall of the shaft sleeve is small (line contact); therefore, the needle roller bears large load, is easy to wear and has short service life. Meanwhile, the gap between the shaft sleeve and the journal of the cross shaft is large after assembly, so that the shaft sleeve and the journal are stressed unevenly, generate heat easily and influence the service life.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to solve the technical problem of providing a novel no kingpin type universal joint, lubricated condition is good, wearing and tearing are slight, long service life, noise are little.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a novel universal joint without roller pins, which comprises a shaft head of a universal joint and a shaft sleeve sleeved on the shaft head; be equipped with a plurality of annular bosss on the inner wall of axle sleeve, the bottom of boss with the spindle nose is contradicted, and is adjacent form the oil storage tank between the boss, be equipped with logical oil groove on the boss, it makes adjacent oil storage tank intercommunication to lead to the oil groove.

The utility model discloses preferred technical scheme lies in, be equipped with on the terminal surface of spindle nose with lead to the slot of oil groove intercommunication.

The utility model discloses preferred technical scheme lies in, each the slot communicates each other through the cross oil duct of built-in.

The utility model discloses preferred technical scheme lies in, the interior terminal surface of axle sleeve is equipped with the oil feed chamber with the slot intercommunication, the outer terminal surface of axle sleeve is fixed with the glib talker with this oil feed chamber intercommunication.

The utility model discloses preferred technical scheme lies in, the opening part of axle sleeve is equipped with the oil blanket.

The utility model has the advantages that:

the utility model provides a pair of novel no kingpin type cross axle universal joint, boss on the axle sleeve directly contradicts on the spindle nose, and area of contact is big (face contact), and the area of stress is big, compares in kingpin, and the area of bearing is big, and the atress is even, and wearing and tearing are little to life has been improved. Owing to set up the oil storage tank, lead to lubricating oil in the oil storage tank, can lubricate the contact surface, reducing wear to the interval sets up the oil storage tank, and adjacent oil storage tank makes the lubrication more abundant through leading to oil tank intercommunication.

Drawings

Fig. 1 is a schematic view of an overall structure of a novel needle-free cross-pin universal joint according to an embodiment of the present invention;

in the figure:

1. a shaft head; 2. a shaft sleeve; 3. a boss; 4. an oil storage tank; 5. an oil groove is communicated; 6. a trench; 7. an oil passage; 8. an oil inlet cavity; 9. an oil injection nozzle; 10. and (7) oil sealing.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in the figure, the embodiment provides a novel universal joint without roller pins, which includes a shaft head 1 of a universal joint and a shaft sleeve 2 sleeved on the shaft head 1; be equipped with a plurality of annular bosss 3 on the inner wall of axle sleeve 2, when axle sleeve 2 cover is on spindle nose 1, the terminal surface and the spindle nose 1 contact of boss 3, because through the face-to-face contact, area of contact has been increased, avoid the line contact, thereby reduce wear, the atress is even, the life extension, be formed with oil storage tank 4 between the adjacent boss 3, logical oily lubricating oil in oil storage tank 4, when axle sleeve 2 rotates, can make the lubricating oil in the oil storage tank 4 lubricate spindle nose 1, thereby reduce the wearing and tearing between spindle nose 1 and the axle sleeve 2, be equipped with a plurality of logical oil grooves 5 on boss 3, logical oil groove 5 can make adjacent oil storage tank 4 intercommunication, make the lubricating oil in the oil storage tank 4 can flow to in logical oil groove 5, directly lubricate boss 3 and spindle nose 1 contact surface, it is that spindle nose 1 lubricates more abundant.

The end face of the shaft head 1 is provided with grooves 6 communicated with the oil through grooves 5, lubricating oil on two sides can be communicated through the grooves 6, the flowability of the lubricating oil is improved, the lubricating effect is improved, and the grooves 6 are communicated with each other through built-in cross-shaped oil ducts 7. Lubricating oil can flow from the spindle nose 1 with more lubricating oil to the spindle nose 1 with less lubricating oil through the oil duct 7, and each spindle nose 1 is guaranteed to have lubricating oil.

An oil inlet cavity 8 communicated with the groove 6 is formed in the inner end face of the shaft sleeve 2, and an oil injection nozzle 9 communicated with the oil inlet cavity 8 is fixed on the outer end face of the shaft sleeve 2. Lubricating oil is added into the oil inlet cavity 8 from the oil filling nozzle 9 and then flows into the oil storage tank 4 through the groove 6, and can flow to other shaft heads 1 through the oil duct 7, because the oil filling nozzle 9 is arranged at each shaft head 1, the lubricating oil can be added inwards from all directions, thereby being very convenient,

an oil seal 10 is arranged at the opening of the shaft sleeve 2. It is possible to prevent the lubricating oil from flowing to the outside from the opening of the sleeve 2.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a novel no kingpin type cross universal joint which characterized in that:

comprises a shaft head (1) of a cross shaft and an upper shaft sleeve (2) sleeved on the shaft head (1);

be equipped with a plurality of annular boss (3) on the inner wall of axle sleeve (2), the bottom of boss (3) with spindle nose (1) is contradicted, and is adjacent form oil storage tank (4) between boss (3), be equipped with logical oil groove (5) on boss (3), lead to oil groove (5) and make adjacent oil storage tank (4) intercommunication.

2. The novel needle-free type cross-pin universal joint according to claim 1, characterized in that:

the end face of the shaft head (1) is provided with a groove (6) communicated with the oil through groove (5).

3. The novel needle-free type cross-pin universal joint according to claim 2, characterized in that:

the grooves (6) are communicated with each other through a built-in cross-shaped oil passage (7).

4. The novel needle-free type cross-pin universal joint according to claim 2, characterized in that:

an oil inlet cavity (8) communicated with the groove (6) is formed in the inner end face of the shaft sleeve (2), and an oil injection nozzle (9) communicated with the oil inlet cavity (8) is fixed on the outer end face of the shaft sleeve (2).

5. The novel needle-free type cross-pin universal joint according to claim 1, characterized in that:

an oil seal (10) is arranged at the opening of the shaft sleeve (2).