CN210265568U

CN210265568U - Three-joint universal joint

Info

Publication number: CN210265568U
Application number: CN201921217257.7U
Authority: CN
Inventors: 杨姚金
Original assignee: Yuhuan Wanhong Machinery Co Ltd
Current assignee: Yuhuan Wanhong Machinery Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-04-07
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a three-section universal joint belongs to motor vehicle machine parts field, has solved the assembly inconvenient to the problem of easy wearing and tearing, its technical scheme main points are including left connector, well connector, right connector and two universal joint, left side connector is through the one end of first universal joint erection joint in well connector, right side connector is through the other end of second universal joint erection joint in well connector, the universal joint includes central body and four axis bodies, the axis body threaded fixation is in four perpendicular positions of central body, the central point of central body puts and is provided with the pump nozzle, be provided with out the oil duct on the axis body, reached the assembly of being convenient for, improve life's effect.

Description

Three-joint universal joint

Technical Field

The utility model relates to a motor vehicle machine parts field especially relates to a three-section universal joint.

Background

The universal joint is a common mechanical accessory, is used on a plurality of devices such as automobiles or tractors and the like, but is mostly of a two-joint structure, mainly realizes swinging on at most two plane dimensions, and the swinging distance and the amplitude range are limited, so the range is relatively small, and the application is limited. For this reason, through design improvement, adopt three joint universal joint, but this has brought inconvenience and easy wearing and tearing on the trans-assembly, and life is not high. In particular, the spider portion is inconvenient to assemble and is easily worn.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. In view of this, the present invention provides a three-joint type universal joint, which has the advantages of easy assembly, effective reduction of wear, and prolonged service life.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a three-section universal joint, includes left connector, well connector, right connector and two universal joint, left side connector is through the one end of first universal joint body in, right side connector is through the other end of second universal joint body in, the universal joint includes central body and four axis bodies, axis body threaded fixation is in four perpendicular positions of central body, the central point of central body puts and is provided with the oil filler point, be provided with out the oil passageway on the axis body.

As a specific aspect of the present invention, it may be preferable that: the left connector comprises two shaft connecting end parts and an outer end part, the shaft connecting end parts are provided with step grooves, the shaft body penetrates through the step grooves and is assembled on the central body, and the outer end part is provided with an internal thread hole.

As a specific aspect of the present invention, it may be preferable that: the middle connecting body is provided with four symmetrical shaft connecting end parts, the two shaft connecting end parts are connected with two shaft bodies of one cross shaft respectively, and the shaft connecting end parts realize two-shaft rotation through each cross shaft.

As a specific aspect of the present invention, it may be preferable that: the right connector is provided with two shaft connection end parts and a flange disc part, and a reinforcing rib is arranged between the shaft connection end parts and the flange disc part.

As a specific aspect of the present invention, it may be preferable that: the outlet of the oil outlet channel is positioned on the side wall of the shaft body, and the outlet is provided with a plurality of outlets.

As a specific aspect of the present invention, it may be preferable that: the oil outlet channel is filled with a cotton core.

The utility model discloses technical effect mainly embodies in following aspect:

1. the cross shaft structure is designed into a detachable connection structure, so that the assembly and the connection are convenient, and the rotation installation of the shaft body on the left connecting body, the middle connecting body and the right connecting body is completed directly through the assembly of the shaft body and the central body in the assembly process;

2. the central body is provided with the oil filling nozzle and the oil outlet channel, so that lubricating oil can be added, the abrasion is reduced, and the service life is prolonged;

3. the cooperation in step groove further improves the connection reliability of axis body at the coupling tip, is difficult for breaking away from when can realizing the pivoted to and the design of strengthening rib makes structural strength improve, and improves and use the reliability.

Drawings

FIG. 1 is a front view of the structure of the embodiment;

FIG. 2 is a side view of the structure in the example;

FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 1;

FIG. 4 is a schematic diagram of a cross.

Reference numerals: 1. a left connector; 2. a middle linker; 3. a right connector; 4. a cross shaft; 41. a central body; 42. a shaft body; 43. an oil injection nozzle; 5. an oil outlet channel; 6. a journaling end; 7. an outer end portion; 8. a step groove; 9. an internally threaded bore; 10. a flange disk portion; 11. reinforcing ribs; 12. a cotton core.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention so that the technical solution of the present invention can be more easily understood and grasped, and should not be construed as limiting the present invention.

Example 1:

a three-joint universal joint, as shown in fig. 1 and 4, includes a left connecting body 1, a middle connecting body 2, a right connecting body 3, and two cross shafts 4. The left connecting body 1 is connected to one end of the middle connecting body 2 by a first cross 4, and the right connecting body 3 is connected to the other end of the middle connecting body 2 by a second cross 4. The cross 4 includes a central body 41, and four shaft bodies 42. The shaft body 42 is screwed to the central body 41 in four vertical directions, the central body 41 is provided with an oil nozzle 43 at the center position, and the shaft body 42 is provided with an oil outlet passage 5. The central body 41 and the shaft body 42 of the cross 4 are detachably constructed to facilitate the assembly thereof to the left connecting body 1, the middle connecting body 2 and the right connecting body 3. The central body 41 has four faces of a regular quadrangle, which are provided with screw holes for the shaft bodies 42 to be coupled. Meanwhile, the threaded hole is also provided with a channel which is connected with the oil filling nozzle 43 and can store oil, so that the channel can also be used as an oil outlet channel 5.

Referring to fig. 2 and 3, the left connection body 1 includes two coupling end portions 6 and an outer end portion 7, the coupling end portion 6 is provided with a stepped groove 8, the shaft body 42 passes through the stepped groove 8 and is assembled on the central body 41, and the outer end portion 7 has an internal threaded hole 9. The structure of the stepped groove 8 can be understood by the shape of the shaft body 42 in fig. 4, because the shape of the shaft body 42 is adapted to the stepped groove 8. The stepped groove 8 is annular, the outer end has a large caliber, the inner end has a small caliber, and the stepped groove and the inner end are transited through the stepped groove 8 and matched with a convex ring at the end part of the shaft body 42.

The middle connecting body 2 has four symmetrical coupling end parts 6, the two coupling end parts 6 are connected with two shaft bodies 42 of one cross shaft 4 respectively, and the coupling end parts 6 realize two-shaft rotation through each cross shaft 4.

The right connector 3 has two coupling end portions 6 and a flange portion 10, and a reinforcing rib 11 is provided between the coupling end portions 6 and the flange portion 10. Because the flange plate has a large surface and insufficient structural strength, the strength is improved by additionally welding the reinforcing ribs 11 between the flange plate and the flange plate.

In the embodiment illustrated in fig. 4, the outlet of the oil outlet passage 5 is located on the side wall of the shaft body 42, and there is one outlet. In other embodiments, the outlet may be multiple. The plurality may be circumferentially arranged.

The assembling process comprises the following steps: at this time, the cross 4 is disassembled, and each shaft body 42 of the cross 4 is firstly inserted into the shaft hole of the coupling end portion 6 in turn, and then the shaft bodies 42 are rotated to complete the threaded connection of the shaft bodies 42 to the central body 41, and each shaft body 42 is connected in this way, thereby completing the connection of all the structures. Therefore, the two cross shafts 4 are arranged to rotate in the working process, and during maintenance, oil can be injected and lubricated through the oil injection nozzle 43, so that the service life is prolonged. The replacement of parts and maintenance are also more convenient.

Example 2:

based on the embodiment 1, referring to fig. 4, the difference from the embodiment 1 is that the oil outlet channel 5 is filled with the cotton core 12. The cotton core 12 can reduce the oil outlet speed, so that the oil outlet is uniform.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a three-section universal joint, includes left connector, well connector, right connector and two universal joint, characterized by, left side connector is through the one end of first universal joint body in, right side connector is through the other end of second universal joint body in, the universal joint includes central body and four axis bodies, the axis body threaded fixation is in four perpendicular positions of central body, the central point of central body puts and is provided with the oil nozzle, be provided with out the oil passageway on the axis body.

2. The three-joint gimbal according to claim 1, wherein the left connecting body comprises two coupling end portions and an outer end portion, the coupling end portions are provided with stepped grooves, the shaft body passes through the stepped grooves and is fitted to the central body, and the outer end portion has an internally threaded hole.

3. The universal joint according to claim 2, wherein said intermediate coupling member has four symmetrical coupling end portions, each coupling end portion being connected to one of the two shaft portions of a cross, the coupling end portions effecting two-axis rotation through each of the cross.

4. The three-joint gimbal according to claim 3, wherein the right connecting body has two shaft-coupling end portions and a flange disk portion, and a reinforcing rib is provided between the shaft-coupling end portions and the flange disk portion.

5. The three-joint universal joint according to claim 1, wherein the outlet of the oil outlet passage is provided in a side wall of the shaft body, and the outlet is provided in plurality.

6. The three-joint gimbal according to claim 1, wherein the oil outlet passage is filled with a cotton core.