CN216101527U

CN216101527U - Vehicle transmission semi-axis

Info

Publication number: CN216101527U
Application number: CN202122908802.0U
Authority: CN
Inventors: 熊浩成; 郭旭峰; 刘晓海; 王鑫瑞; 龙培
Original assignee: Sichuan Vocational and Technical College Communications
Current assignee: Sichuan Vocational and Technical College Communications
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-03-22
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a vehicle transmission half shaft, and belongs to the technical field of vehicle transmission systems. A vehicle drive axle shaft comprising: the carbon fiber pipe, the flange forks connected to the two ends of the carbon fiber pipe and the shaft sleeves sleeved on the two ends of the carbon fiber pipe; one end of the flange fork extends into the carbon fiber pipe, and a first bonding layer is arranged between the inner wall of the carbon fiber pipe and the outer wall of the flange fork. The middle part of the traditional half shaft is replaced by the carbon fiber pipe, and the carbon fiber pipe has the characteristics of high strength and light weight and is convenient for torque transmission; and the two ends of the carbon fiber pipe are connected with the flange fork through the first bonding layers, and the shaft sleeve is sleeved on the outer side of the carbon fiber pipe, so that the connection reliability of the carbon fiber pipe and the flange fork is ensured, and the working performance of the transmission half shaft is optimized.

Description

Vehicle transmission semi-axis

Technical Field

The utility model relates to the technical field of vehicle transmission systems, in particular to a vehicle transmission half shaft.

Background

At present, most of transmission shafts used in domestic automobile events are aluminum half shafts and steel half shafts, and in order to overcome deformation caused by torque, the manufactured or purchased half shafts are large in size and heavy in weight. At present, the application of carbon fiber materials on the half shaft is gradually increased, but the connection stability of the carbon fiber pipe and the flange forks at two ends is poor, so that the performance of the carbon fiber pipe in torque transmission is limited. Therefore, the prior art has the problem that the performance of the carbon fiber tube is limited when the carbon fiber tube transmits torque.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vehicle transmission half shaft to solve the problem that the performance of the existing carbon fiber pipe is limited when torque is transmitted.

The technical scheme for solving the technical problems is as follows:

a vehicle drive axle shaft comprising: the carbon fiber pipe, the flange forks connected to the two ends of the carbon fiber pipe and the shaft sleeves sleeved on the two ends of the carbon fiber pipe;

one end of the flange fork extends into the carbon fiber pipe, and a first bonding layer is arranged between the inner wall of the carbon fiber pipe and the outer wall of the flange fork.

The middle part of the traditional half shaft is replaced by the carbon fiber pipe, and the carbon fiber pipe has the characteristics of high strength and light weight and is convenient for torque transmission; and the two ends of the carbon fiber pipe are connected with the flange fork through the first bonding layers, and the shaft sleeve is sleeved on the outer side of the carbon fiber pipe, so that the connection reliability of the carbon fiber pipe and the flange fork is ensured, and the working performance of the transmission half shaft is optimized.

Further, a second adhesive layer is arranged on the inner side of the shaft sleeve, and the second adhesive layer is respectively contacted with the carbon fiber pipe and the flange fork.

According to the utility model, the second bonding layer is arranged on the inner side of the shaft sleeve, and the shaft sleeve is tightly connected with the carbon fiber tube and the flange fork on the inner side of the shaft sleeve through bonding characteristics.

Further, the inner wall of the shaft sleeve is stepped, and the shaft sleeve comprises: the small-diameter section is in contact with the outer wall of the carbon fiber pipe, and the large-diameter section is located on the outer side of the second bonding layer.

According to the utility model, the stepped shaft sleeve is arranged, the small-diameter section is clamped with the carbon fiber pipe, and the large-diameter section is fixed by bonding, so that the connection stability of two ends of the carbon fiber pipe is further ensured by two connection modes.

Further, the flange yoke includes: the fork body is arranged between the fork tail and the fork head, and the fork head is respectively provided with a through hole.

According to the utility model, the fork tail on the flange fork extends into the inner side of the carbon fiber tube, the fork body is positioned on the outer side of the carbon fiber tube and matched with the shaft sleeve, and the fork head is provided with the through hole, so that the flange fork can be reliably connected and can be connected with the universal joint through the through hole.

Further, the outer diameter of the fork body is larger than that of the fork tail, and the end face of the fork body is in contact with the end face of the carbon fiber pipe.

The end face of the fork body is in contact with the end face of the carbon fiber pipe, and the fixing device is used for ensuring the fixing of the bonding size of the flange fork and the carbon fiber pipe.

Further, the carbon fiber tube has a double-layer structure including: the inner layer that contacts with first bonding layer and the skin that is located the inlayer outside, inlayer and outer both ends are connected respectively to be equipped with hollow chamber between inlayer and the skin.

The carbon fiber pipe is of a double-layer structure with the hollow cavity, so that two ends of the carbon fiber pipe have higher torsional strength under the same mass, and the carbon fiber pipe is convenient to connect and transmit torque.

The utility model has the following beneficial effects:

Drawings

FIG. 1 is a schematic structural view of a vehicle transmission half shaft of the present invention;

FIG. 2 is an axial cross-sectional schematic view of the vehicle drive axle shaft of the present invention;

FIG. 3 is a schematic axial cross-sectional view of a carbon fiber tube of the present invention;

FIG. 4 is an axial cross-sectional view of the flange yoke of the present invention;

fig. 5 is a schematic axial cross-section of the sleeve of the present invention.

In the figure: 10-carbon fiber tubes; 11-an inner layer; 12-an outer layer; 13-a hollow cavity; 20-a flange yoke; 21-forked tail; 22-a fork body; 23-a jaw; 24-a through-hole; 30-shaft sleeve; 31-small diameter section; 32-a large diameter section; 41-a first adhesive layer; 42-second adhesive layer.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

Examples

Referring to FIG. 1, a vehicle drive axle shaft comprises: the carbon fiber tube comprises a carbon fiber tube 10, flange forks 20 connected to two ends of the carbon fiber tube 10 and shaft sleeves 30 sleeved on two ends of the carbon fiber tube 10.

Referring to fig. 3, the carbon fiber tube 10 is made of a carbon fiber material, and uses the characteristic of the carbon fiber material that the weight is light and the strength is high. And the carbon fiber tube 10 is a double-layer structure including: the inner layer 11 positioned on the inner side and the outer layer 12 positioned on the outer side, a hollow cavity 13 is further arranged between the inner layer 11 and the outer layer 12, and two ends of the inner layer 11 and two ends of the outer layer 12 are respectively connected. The carbon fiber tube 10 is designed into the specific structure, so that the carbon fiber tube has better torsion resistance under the premise of the same quality, and the two ends of the carbon fiber tube have higher strength so as to be convenient for connection and torque transmission.

Referring to fig. 2 and 4, flange yokes 20 are respectively attached to the inner sides of both ends of the carbon fiber tube 10, and respectively include: the fork tail 21 extending into the inner side of the carbon fiber tube 10, and the insert body 22 and the fork head 23 positioned on the outer side of the carbon fiber tube 10 are provided with a first bonding layer 41 between the outer wall surface of the fork tail 21 and the inner wall surfaces of the two ends of the carbon fiber tube 10, and the first bonding layer 41 is used for bonding and matching the two. The outer diameter of the fork body 22 is larger than that of the fork tail 21, and the end face of the fork body 22 is in direct contact with the end face of the carbon fiber tube 10, so as to ensure that the bonding position size of the flange fork 22 and the carbon fiber tube 10 is fixed. The fork head 23 is further provided with a through hole 24, the extending direction of the through hole 24 is perpendicular to the extending direction of the carbon fiber tube 10, and the flange fork 20 can be connected with universal joints at two ends of the transmission half shaft through the through hole 24.

Referring to fig. 2 and 5, the number of the shaft sleeves 30 is two, and the two shaft sleeves are respectively sleeved at two ends of the carbon fiber tube 10. The inner wall of the shaft sleeve 30 is stepped, and includes: the small-diameter section 31 that contacts with the outer wall of carbon fiber pipe 10 and the big-diameter section 32 that sets up with the outer wall interval of carbon fiber pipe 10 are provided with second adhesive linkage 42 between the inboard of big-diameter section 32 and the outer wall of carbon fiber pipe 10, and second adhesive linkage 42 still contacts with the outer wall of fork body 22 on flange fork 20 simultaneously. The small-diameter section 31 is connected with the carbon fiber tube 10 in a clamped mode, the large-diameter section 32 is fixed through bonding, the connection stability of the two ends of the carbon fiber tube 10 is further ensured through two connection modes, and the carbon fiber tube 10 can fully exert the performance advantages of the carbon fiber tube when serving as a half shaft body.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A vehicle drive axle shaft, comprising: the carbon fiber pipe comprises a carbon fiber pipe (10), flange forks (20) connected to two ends of the carbon fiber pipe (10) and shaft sleeves (30) sleeved at two ends of the carbon fiber pipe (10);

one end of the flange fork (20) extends into the carbon fiber pipe (10), and a first bonding layer (41) is arranged between the inner wall of the carbon fiber pipe (10) and the outer wall of the flange fork (20).

2. The vehicle driveshaft according to claim 1, characterized in that a second adhesive layer (42) is provided on the inside of the bushing (30), the second adhesive layer (42) being in contact with the carbon fiber tube (10) and the flange yoke (20), respectively.

3. The vehicle drive axle shaft according to claim 2, characterized in that the inner wall of the bushing (30) is stepped and comprises respectively: a small-diameter section (31) in contact with the outer wall of the carbon fiber tube (10) and a large-diameter section (32) positioned outside the second bonding layer (42).

4. The vehicle drive axle shaft according to claim 1, characterized in that the flange yoke (20) comprises: stretch into fork tail (21) and the fork body (22) and the jaw (23) that are located the carbon fiber pipe (10) outside stretch into carbon fiber pipe (10) inboard, fork body (22) are located fork tail (21) with between jaw (23), through hole (24) have been seted up on jaw (23) respectively.

5. The vehicle drive axle shaft according to claim 4, characterized in that the outer diameter of the yoke body (22) is larger than the outer diameter of the yoke tail (21), and the end face of the yoke body (22) is in contact with the end face of the carbon fiber tube (10).

6. The vehicle driveshaft according to any one of claims 1 to 5, characterized in that the carbon fiber tube (10) is of a double-layer structure comprising: the adhesive tape comprises an inner layer (11) in contact with the first adhesive layer (41) and an outer layer (12) located on the outer side of the inner layer (11), wherein two ends of the inner layer (11) and two ends of the outer layer (12) are connected respectively, and a hollow cavity (13) is formed between the inner layer (11) and the outer layer (12).