CN211009631U

CN211009631U - Novel double-intermediate-shaft structure

Info

Publication number: CN211009631U
Application number: CN201921515743.7U
Authority: CN
Inventors: 胡安辉; 李秀梅; 相东; 李凯; 徐飞扬; 费二威
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-07-14
Anticipated expiration: 2029-09-12

Abstract

The utility model belongs to the technical field of the car, specific novel two jackshaft structure that says so. The intermediate shaft structure comprises a first section fork, a second section fork, a first section fork, a cross shaft, a section fork connecting structure and a spline shaft; one end of the spline shaft is welded with one end of the second yoke; any two ends of the second cross shaft are assembled with the two through holes at the other end of the second yoke and are riveted and fixed through a bearing cover; two ends of the first cross shaft are assembled with two through holes at one end of the first yoke and are riveted and fixed through a bearing cover; one end of the joint fork connecting structure is welded and fixed with the first joint fork, and the other end of the joint fork connecting structure is welded and fixed with the second joint fork; other both ends of first, the cross axle all with the through-hole assembly at linkage casing both ends to it is fixed to rivet through the bearing cap. The utility model discloses the friction condition of bulb with the ball cover has fully been considered, has very big improvement to the wearing and tearing problem to can compensate axial displacement, increase operating angle about 3, solved the wearing and tearing problem of the intermediate connection of current pair jackshaft.

Description

Novel double-intermediate-shaft structure

Technical Field

The utility model belongs to the technical field of the car, specific novel two jackshaft structure that says so.

Background

Referring to fig. 1, the existing duplex intermediate shaft at least has one duplex universal joint, the duplex universal joint is a duplex universal joint with a ball pair, the duplex universal joint comprises a first joint fork, an intermediate connection and a second joint fork, the first joint fork is provided with a ball head I11, the second joint fork is provided with a ball sleeve 12 matched with the ball head I11 of the first joint fork, the ball head I11 is directly contacted with a friction material in the ball sleeve 12, a linear motion pair is arranged between the ball head I11 and the friction material, and the gap problem generated after the friction material is abraded is not considered during design, so that the performance of the intermediate shaft is reduced, the transmission stability is reduced, noise is generated, and the quality of the whole vehicle is reduced.

Disclosure of Invention

The utility model provides a fully considered the friction condition of bulb and ball cover, there is very big improvement to the wearing and tearing problem to can compensate axial displacement, increase the novel two jackshaft structure about 3 of operating angle, solved the wearing and tearing problem that the intermediate junction of current pair jackshaft exists.

The technical scheme of the utility model is explained as follows with the attached drawings:

a novel double-intermediate-shaft structure comprises a first joint fork 1, a first cross shaft 2, a joint fork connecting structure 3, a second cross shaft 4, a second joint fork 5 and a spline shaft 6; one end of the spline shaft 6 is welded with one end of the second yoke 5, and the other end of the spline shaft is connected with the steering column through the yoke; any two ends of the second cross shaft 4 are assembled with the two through holes at the other end of the second yoke 5 and are riveted and fixed through bearing covers; any two ends of the first cross shaft 2 are assembled with two through holes at one end of the first yoke 1 and are riveted and fixed through a bearing cover; the other end of the first yoke 1 is connected with a steering gear through a spline shaft; one end of the joint fork connecting structure 3 is fixedly welded with the first joint fork 1, and the other end of the joint fork connecting structure is fixedly welded with the second joint fork 5; the other two ends of the first cross shaft 2 and the second cross shaft 4 are assembled with through holes at two ends of the linkage shell 10 and are riveted and fixed through bearing covers.

The joint fork connecting structure 3 comprises a ball head 7, a spherical sliding bearing 8 and a ball shell 9; the spherical shell 9 is coaxial with the spherical sliding bearing 8 and is in clearance fit with the spherical sliding bearing; the spherical sliding bearing 8 is internally provided with a spherical groove which is concentric with the ball head 7 and is in clearance fit with the ball head; the spherical shell 9 and the second yoke 5 are welded and fixed; and the ball head 7 is welded and fixed with the first section fork 1.

The utility model has the advantages that:

1) the utility model adopts a double cross joint intermediate shaft connecting structure, thus reducing the abrasion problem existing in the intermediate connection of the double intermediate shafts;

2) the utility model discloses a spherical sliding bearing has very big improvement to the wearing and tearing problem as the friction connection structure between first festival fork and the second festival fork to can compensate axial displacement, increase working angle is about 3.

3) The utility model discloses a pitch fork connection structure motion is vice for the face motion, and wherein rotary motion is to bulb and sphere sliding bearing, and meanwhile does the endwise slip between sphere sliding bearing and the spherical shell, turns into low vice by high pair, and the wearing and tearing condition between very big optimization bulb and the spherical shell guarantees to turn to the jackshaft under various states and has good transmission stationarity, is a transmission steadily, and the noise is little, and the working angle increase has good physical property's connection structure.

Drawings

FIG. 1 is a schematic structural diagram of a conventional twin countershaft;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a cross-sectional view of the middle joint yoke connecting structure of the present invention;

fig. 4 is an exploded view of the present invention.

In the figure: 1. a first yoke; 2. a first cross-shaft; 3. a yoke connecting structure; 4. a second cross-shaped shaft; 5. a second yoke; 6. a spline shaft; 7. a ball head; 8. a spherical sliding bearing; 9. a spherical shell; 10. a linkage housing; 11. a bulb I; 12. and (4) covering the ball.

Detailed Description

Referring to fig. 2 and 4, the novel double-intermediate shaft structure comprises a first yoke 1, a first cross shaft 2, a yoke connecting structure 3, a second cross shaft 4, a second yoke 5 and a spline shaft 6.

Referring to fig. 3, the joint yoke connecting structure 3 includes a ball head 7, a spherical sliding bearing 8 and a ball shell 9; the spherical shell 9 is coaxial with the spherical sliding bearing 8 and is in clearance fit with the spherical sliding bearing; the spherical sliding bearing 8 is internally provided with a spherical groove which is concentric with the ball head 7 and is in clearance fit with the ball head; the position relationship between the ball head 7 and the ball shell 5 is determined by a linkage shell 10.

Referring to fig. 4, the linkage shell 10 is formed by welding two identical structures, the structure is provided with two through holes matched with any two ends of the cross shaft in the radial direction, the through hole capable of placing the joint yoke connecting structure 3 is formed in the axial direction, and the welding plane is provided with a welding chamfer angle, so that the welding is convenient.

The kinematic pair of the joint fork connecting structure 3 is a surface kinematic pair, wherein the ball head 7 and the spherical sliding bearing 8 do rotation motion, and meanwhile, the spherical sliding bearing 8 and the spherical shell 9 do axial sliding. Compare with the linear motion pair of current structure, the utility model discloses the motion is turned into low vice by high pair, and the wearing and tearing condition between very big optimization bulb 7 and the spherical shell 5 guarantees to turn to the jackshaft under various states and has good transmission stationarity, is a transmission steady, and the noise is little, and the working angle increase has good physical properties's connection structure.

The utility model discloses assembly method as follows:

(1) welding and fixing the spline shaft 6 and the second yoke 5 at the correct position;

(2) assembling a cross shaft of a second cross shaft 4 and a second yoke 5, and then riveting and fixing a bearing cover;

(3) assembling a first cross shaft 2 and a first yoke 1, and then riveting and fixing a bearing cover;

(4) the spherical sliding bearing 8 is arranged in the spherical shell 9 to ensure the coaxiality of the spherical sliding bearing and the spherical shell;

(5) welding the spherical shell 9 with the second yoke 5;

(6) welding the ball head 7 with the first yoke 1;

(7) and respectively connecting the cross shafts in the assembled first yoke 1 and the assembled second yoke 5 with a linkage shell 10, and riveting and fixing through a bearing cover.

Claims

1. A novel double-intermediate-shaft structure is characterized by comprising a first yoke (1), a first cross shaft (2), a yoke connecting structure (3), a second cross shaft (4), a second yoke (5) and a spline shaft (6); one end of the spline shaft (6) is welded with one end of the second yoke (5), and the other end of the spline shaft is connected with the steering column through the yoke; any two ends of the second cross shaft (4) are assembled with the two through holes at the other end of the second yoke (5) and are riveted and fixed through a bearing cover; any two ends of the first cross shaft (2) are assembled with the two through holes at one end of the first yoke (1) and are riveted and fixed through a bearing cover; the other end of the first yoke (1) is connected with a steering gear through a spline shaft; one end of the joint fork connecting structure (3) is welded and fixed with the first joint fork (1), and the other end of the joint fork connecting structure is welded and fixed with the second joint fork (5); the other two ends of the first cross shaft (2) and the other two ends of the second cross shaft (4) are assembled with through holes at two ends of the linkage shell (10) and are riveted and fixed through bearing covers; the joint fork connecting structure (3) comprises a ball head (7), a spherical sliding bearing (8) and a ball shell (9); the spherical shell (9) is coaxial with the spherical sliding bearing (8) and is in clearance fit with the spherical sliding bearing; the spherical sliding bearing (8) is internally provided with a spherical groove which is concentric with the ball head (7) and is in clearance fit with the ball head; the spherical shell (9) is welded and fixed with the second yoke (5); the bulb (7) and the first section fork (1) are welded and fixed.