CN211550322U

CN211550322U - Novel transmission shaft

Info

Publication number: CN211550322U
Application number: CN201922434481.8U
Authority: CN
Inventors: 颜永生; 颜勇; 谭平; 高静闻
Original assignee: Chongqing Transmission Shaft Co ltd
Current assignee: Chongqing Transmission Shaft Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-22
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a novel transmission shaft, which comprises a spline shaft fork, a spline sleeve, a first shaft tube and a second shaft tube; the spline shaft yoke is connected with a spline sleeve in a sliding mode, the spline sleeve is connected with a first shaft tube, and a flexible universal joint is arranged at the end of the first shaft tube; the spline shaft yoke is connected with a universal joint yoke through a universal joint, the universal joint yoke is connected with a second shaft pipe, and the end part of the second shaft pipe is provided with a flexible universal joint; the flexible universal joint is composed of a flange connecting frame, a flange positioning sleeve and an injection molding flange, wherein the injection molding flange comprises a thermoplastic elastic material and non-metal particles dispersed in the thermoplastic material. The utility model provides a pair of novel transmission shaft, its is rational in infrastructure, and the transmission shaft tip sets up flexible universal joint, has effectively reduced the vibration of transmission shaft, has improved the performance of transmission shaft.

Description

Novel transmission shaft

Technical Field

The utility model belongs to the technical field of the car transmission, a novel transmission shaft is related to.

Background

The transmission shaft is an axle capable of transmitting power in the transmission shaft of the universal transmission device, and the automobile transmission shaft is an important part for transmitting power in an automobile transmission system, and has the function of transmitting the power of an engine to wheels together with a gearbox and a drive axle so as to enable an automobile to generate driving force.

In the prior art, the universal coupling of the transmission shaft has a complex structure and insufficient deflection, and the power transmission and the use effect of the transmission shaft are influenced to a certain extent.

Therefore, it is necessary to design a new transmission shaft to solve the existing technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the partial technical problem that exists among the prior art to a certain extent at least, the novel transmission shaft that provides, its is rational in infrastructure, and the transmission shaft tip sets up flexible universal joint, has effectively reduced the vibration of transmission shaft, has improved the performance of transmission shaft, has good spreading value.

In order to solve the technical problem, the utility model provides a novel transmission shaft, which comprises a spline shaft fork, a spline housing, a first shaft tube and a second shaft tube; the spline shaft yoke is connected with a spline sleeve in a sliding mode, the spline sleeve is connected with a first shaft tube, and a flexible universal joint is arranged at the end of the first shaft tube; the spline shaft yoke is connected with a universal joint yoke through a universal joint, the universal joint yoke is connected with a second shaft pipe, and the end part of the second shaft pipe is provided with a flexible universal joint; the flexible universal joint is composed of a flange connecting frame, a flange positioning sleeve and an injection molding flange.

In some embodiments, the injection molded flange is made from polybutadiene, natural rubber, ethylene-propylene rubber, butyl rubber, polyisobutylene, polyethylene-polybutylene, or amorphous polyethylene.

In some embodiments, the yoke end of the spline yoke is provided with an intermediate support assembly comprising a support assembly and a mounting plate, the support assembly consisting of a bearing and a support bracket.

In some embodiments, the sliding connection part of the spline shaft fork and the spline housing is provided with a protective cover, one end of the protective cover is clamped in the groove of the spline housing, and the other end of the protective cover is lapped on the outer peripheral side of the spline shaft fork.

In some embodiments, the shield includes a snap section, a corrugated section, and a lap section, all of which are integrally molded from rubber.

In some embodiments, the inner side surface of the clamping section is provided with a first protrusion, and the outer peripheral side of the first protrusion is provided with a first notch with a large section outer opening and a small section inner opening.

In some embodiments, the inner side surface of the overlapping section is provided with a second protrusion, and the outer peripheral side of the second protrusion is provided with a second notch with a small outer opening and a large inner opening.

The utility model discloses beneficial effect:

the utility model provides a pair of novel transmission shaft, its is rational in infrastructure, and the transmission shaft tip sets up flexible universal joint, has effectively reduced the vibration of transmission shaft, has improved the performance of transmission shaft.

Drawings

The above advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and do not limit the present invention, and in which:

fig. 1 is a schematic structural view of a novel transmission shaft according to the present invention;

FIG. 2 is a schematic structural view of a flexible gimbal according to the present invention;

FIG. 3 is an enlarged partial view of the dashed box of FIG. 1;

fig. 4 is a schematic structural diagram of the protective cover of the present invention.

In the drawings, the reference numerals denote the following components:

10. a spline shaft yoke;

20. a spline housing;

30. a first shaft tube;

40. a second shaft pipe;

50. a flexible gimbal; 51. a flange connecting frame; 52. a flange positioning sleeve; 53. injection molding a flange;

60. a universal joint yoke;

70. an intermediate support assembly; 71. a support assembly; 711. a bearing; 712. a support frame; 72. mounting a plate;

80. a protective cover; 81. a clamping section; 811. a first protrusion; 812. a first cut; 82. a corrugated section; 83. a lap joint section; 831. a second protrusion; 832. a second incision.

Detailed Description

Fig. 1 to 4 are related schematic views of a novel transmission shaft according to the present application, and the present invention is described in detail below with reference to specific embodiments and accompanying drawings.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.

Referring to fig. 1 and 2, the novel transmission shaft includes a spline shaft yoke 10, a spline housing 20, a first shaft tube 30 and a second shaft tube 40; the spline shaft fork 10 is connected with a spline housing 20 in a sliding mode, the spline housing 20 is connected with a first shaft pipe 30, and a flexible universal joint 50 is arranged at the end portion of the first shaft pipe 30; the spline shaft fork 10 is connected with a universal joint fork 60 through a universal joint, the universal joint fork 60 is connected with a second shaft pipe 40, and the end part of the second shaft pipe 40 is provided with a flexible universal joint 50; the flexible gimbal 50 is composed of a flange connection frame 51, a flange positioning sleeve 52 and an injection molding flange 53, as shown in fig. 2.

In the utility model, the injection molding flange 53 is made of thermoplastic elastic material, so as to effectively absorb the generated vibration and improve the service performance of the injection molding flange 53; the non-metal particles distributed in the thermoplastic elastic material can improve the wear resistance of the injection molding flange 53 and improve the service life of the injection molding flange 53.

As an example of the present invention, the injection flange 53 is made of polybutadiene (BR), Natural Rubber (NR), ethylene-propylene rubber (EPDM), butyl rubber (IIR), polyisobutylene, polyethylene-polybutene, or amorphous polyethylene. Preferably, the injection molded flange 53 is made of Natural Rubber (NR).

In the present invention, the shaft fork end of the spline shaft fork 10 is provided with the middle support component 70, as shown in fig. 3, which comprises a support assembly 71 and a mounting plate 72, wherein the support assembly 71 is composed of a bearing 711 and a support frame 712. In the embodiment shown in fig. 3, the supporting frame 712 is made of a non-metal material, and a metal rib is disposed inside the supporting frame 712 to enhance the strength of the supporting frame 712.

As an embodiment of the present invention, the sliding connection between the spline shaft yoke 10 and the spline housing 20 is provided with a protective cover 80, one end of which is clamped in the groove of the spline housing 20, and the other end of which is lapped on the outer peripheral side of the spline shaft yoke 10.

Fig. 4 is a schematic structural diagram of the protective cover of the present invention, wherein the protective cover 80 includes a clamping section 81, a corrugated section 82 and an overlapping section 83, and the three are integrally formed by rubber molding. The inner side surface of the clamping section 81 is provided with a first protrusion 811, and the outer periphery of the first protrusion 811 is provided with a first cut 812 with a large outer opening and a small inner opening in cross section. The cross-section of the first cutout 812 may be a triangular structure, which may also be other structures. The provision of the first cutout 812 is advantageous to promote better mounting of the first projection 811 to the groove of the spline housing 20.

In one aspect of the present embodiment, the inner side surface of the overlapping section 83 is provided with a second protrusion 831, and the outer peripheral side of the second protrusion 831 is provided with a second notch 832 having a small outer opening and a large inner opening. The second notch 832 is beneficial to enhancing the flexibility of the second protrusion 831, so as to control the gap between the second protrusion 831 and the spline shaft yoke 10, effectively prevent sundries from entering the sliding connection part between the spline shaft yoke 10 and the spline housing 20, and ensure the use performance of the transmission shaft.

Compared with the prior art, this application a novel transmission shaft, its is rational in infrastructure, and the transmission shaft tip sets up flexible universal joint, has effectively reduced the vibration of transmission shaft, has improved the performance of transmission shaft.

The present invention is not limited to the above embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is included in the technical solution that is the same as or similar to the present invention.

Claims

1. A novel transmission shaft is characterized by comprising a spline shaft yoke, a spline sleeve, a first shaft tube and a second shaft tube; the spline shaft yoke is connected with a spline sleeve in a sliding mode, the spline sleeve is connected with a first shaft tube, and a flexible universal joint is arranged at the end of the first shaft tube; the spline shaft yoke is connected with a universal joint yoke through a universal joint, the universal joint yoke is connected with a second shaft pipe, and the end part of the second shaft pipe is provided with a flexible universal joint; the flexible universal joint is composed of a flange connecting frame, a flange positioning sleeve and an injection molding flange.

2. The novel propeller shaft of claim 1 wherein said injection molded flange is made of polybutadiene, natural rubber, ethylene-propylene rubber, butyl rubber, polyisobutylene, polyethylene-polybutylene or amorphous polyethylene.

3. The novel propeller shaft of claim 1 wherein the yoke end of the spline yoke is provided with an intermediate support assembly comprising a support assembly and a mounting plate, the support assembly consisting of a bearing and a support bracket.

4. The novel transmission shaft according to claim 1, wherein a protective cover is arranged at the sliding connection position of the spline shaft yoke and the spline housing, one end of the protective cover is clamped in the groove of the spline housing, and the other end of the protective cover is lapped on the outer peripheral side of the spline shaft yoke.

5. The novel propeller shaft of claim 4 wherein the shield includes a snap section, a corrugated section and an overlapping section, all of which are molded from rubber.

6. The novel transmission shaft according to claim 5, wherein a first protrusion is arranged on the inner side surface of the clamping section, and a first notch with a large section outer opening and a small section inner opening is arranged on the outer peripheral side of the first protrusion.

7. The novel transmission shaft according to claim 5, wherein a second protrusion is provided on an inner side surface of the overlapping section, and a second notch having a smaller opening on an outer side and a larger opening on an inner side is provided on an outer peripheral side of the second protrusion.