CN216969348U

CN216969348U - Liquid-filled type transmission shaft intermediate supporting device

Info

Publication number: CN216969348U
Application number: CN202123226848.0U
Authority: CN
Inventors: 沈晓庆; 俞鸿尧; 石伯妹
Original assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Current assignee: Wanxiang Qianchao Co Ltd; Wanxiang Group Corp
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-15
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a liquid-filled transmission shaft intermediate supporting device, which relates to the field of automobile transmission shafts and comprises an upper bracket, a rubber part, a dustproof part, a bearing, a lower bracket and an oil injection port, wherein the outer ring of the rubber part is respectively wrapped on the upper bracket and the lower bracket which are of symmetrical semicircular shell structures, and a support lug is arranged at the joint of the upper bracket and the lower bracket and is used for being fixed at the installation position of an automobile body; a bearing is arranged on the inner ring of the rubber component; form annular airbag between the inner circle of rubber part and the outer lane, set up the oiling mouth on rubber part with annular airbag is linked together, fills hydraulic oil for annular airbag through the oiling mouth. The beneficial effects of the utility model are as follows: the metal wire is added in the rubber layer of the air bag, so that the pressure which can be born by the rubber layer is improved, and the pressure adjusting range of the air bag is expanded; the pressure of the hydraulic oil is far greater than 0.8Mpa, and hydraulic oil is filled into the rubber part, so that the radial rigidity of the supporting assembly is increased, and the driving comfort of the whole vehicle is improved.

Description

Liquid-filled type transmission shaft intermediate supporting device

Technical Field

The utility model relates to the field of automobile transmission shafts, in particular to a liquid-filled transmission shaft intermediate supporting device.

Background

The transmission shaft is provided with an intermediate bearing during segmentation, the intermediate bearing is usually arranged on a frame cross beam and can compensate the installation errors of the transmission shaft in the axial direction and the angle direction and the displacement caused by the engine movement or frame deformation and the like in the running process of an automobile, and the intermediate bearing is usually provided with an elastic element to fulfill the functions.

An air bag type intermediate supporting device for a transmission shaft (Chinese patent No. CN 111873795A) adjusts the radial rigidity of a supporting assembly by adjusting the air pressure of an air bag. However, by inflating the annular bladder, the adjustment range of the radial stiffness of the support assembly is also small, since the pressure of the gas cannot be greater than 0.8 Mpa.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides the liquid-filled transmission shaft intermediate support device which can bear larger air pressure and expand the pressure adjusting range of an air bag, so that the radial rigidity of a support assembly is increased, and the driving comfort of the whole vehicle is improved.

The purpose of the utility model is achieved by the following technical scheme: the liquid-filled transmission shaft intermediate supporting device comprises an upper support, a rubber part, a dustproof part, a bearing, a lower support and an oil injection port, wherein the outer ring of the rubber part is respectively wrapped by the upper support and the lower support which are in symmetrical semicircular shell structures, and a support lug is arranged at the joint of the upper support and the lower support and is used for being fixed at the installation position of a vehicle body; a bearing is arranged on the inner ring of the rubber component; form annular gasbag between the inner circle of rubber part and the outer lane, set up on the rubber part oiling mouth with annular gasbag is linked together, fills hydraulic oil for annular gasbag through the oiling mouth.

According to a further technical scheme, a metal wire or a metal wire mesh is embedded in a rubber layer of the annular air bag.

As a further technical scheme, the annular air bag is filled with hydraulic oil or filled with hydraulic oil and air in a mixed mode.

As a further technical scheme, the support lug is provided with a mounting hole.

As a further technical scheme, a dustproof component is installed between the inner ring of the rubber component and the outer ring of the bearing.

The utility model has the beneficial effects that:

1. the metal wire is added in the rubber layer of the air bag, so that the pressure which can be borne by the rubber layer is improved, and the pressure adjusting range of the air bag is expanded;

2. the pressure of the hydraulic oil is far greater than 0.8Mpa, and hydraulic oil is filled into the rubber part, so that the radial rigidity of the supporting assembly is increased, and the driving comfort of the whole vehicle is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Description of the reference numerals: the device comprises an upper bracket 1, a rubber part 2, a dustproof part 3, a bearing 4, a lower bracket 5, an oil filling port 6, a support lug 7, an annular air bag 8 and a mounting hole 9.

Detailed Description

The utility model will be described in detail below with reference to the following drawings:

the embodiment is as follows: as shown in fig. 1 and 2, the liquid-filled transmission shaft intermediate supporting device comprises an upper bracket 1, a rubber part 2, a dustproof part 3, a bearing 4, a lower bracket 5 and an oil filling port 6. The outer ring of the rubber component 2 wraps the upper support 1 and the lower support 5 respectively, the upper support 1 and the lower support 5 are of mutually symmetrical semicircular shell structures, a supporting lug 7 is arranged at the joint of the upper support and the lower support, and the supporting lug 7 is provided with a corresponding mounting hole 9 for being fixed at the mounting position of a vehicle body. And a bearing 4 is arranged on the inner ring of the rubber component 2, and a dustproof component 3 is arranged between the inner ring of the rubber component 2 and the outer ring of the bearing 4. An annular air bag 8 is formed between the inner ring and the outer ring of the rubber component 2, and a metal wire or a metal wire mesh is embedded in the rubber layer of the annular air bag 8. An oil filling port 6 arranged on the rubber part 2 is communicated with the annular air bag 8, and hydraulic oil is filled into the annular air bag 8 through the oil filling port 6. Preferably, when the annular air bag 8 is filled with hydraulic oil, the hydraulic oil may be filled, or the hydraulic oil and air may be mixed. For the prior art, the gas pressure injected into the air bag cannot be larger than 0.8Mpa, so the adjustment range of the radial rigidity of the support assembly is smaller. For the utility model, the pressure of the hydraulic oil injected into the annular air bag 8 is far more than 0.8Mpa, so that the radial rigidity of the support assembly is increased, and the driving comfort of the whole vehicle is improved.

The metal wire or the metal wire mesh in the utility model can be put into the forming die of the annular air bag 8 in advance, and the annular air bag 8 is embedded into the annular air bag after being formed. The metal wire mesh is added in the rubber layer of the annular air bag, so that the pressure which can be borne by the rubber layer is improved, and the pressure adjusting range of the air bag is expanded, thereby increasing the radial rigidity of the supporting assembly and improving the driving comfort of the whole vehicle.

It should be understood that equivalent alterations and modifications of the technical solution and the inventive concept of the present invention by those skilled in the art should fall within the scope of the appended claims.

Claims

1. A liquid-filled transmission shaft intermediate support device is characterized in that: the automobile oil injection device comprises an upper support (1), a rubber part (2), a dustproof part (3), a bearing (4), a lower support (5) and an oil injection port (6), wherein the outer ring of the rubber part (2) wraps the upper support (1) and the lower support (5) respectively, the upper support (1) and the lower support (5) are of mutually symmetrical semicircular shell structures, and a support lug (7) is arranged at the joint of the upper support and the lower support and is used for being fixed at the installation position of an automobile body; a bearing (4) is arranged on the inner ring of the rubber component (2); form annular gasbag (8) between the inner circle of rubber part (2) and the outer lane, set up oiling mouth (6) on rubber part (2) with annular gasbag (8) are linked together, fill annular gasbag (8) through oiling mouth (6) and annotate hydraulic oil.

2. The liquid-filled drive shaft intermediate bearing device of claim 1, wherein: and a metal wire or a metal wire mesh is embedded in the rubber layer of the annular air bag (8).

3. A liquid-filled propeller shaft intermediate bearing device according to claim 1 or 2 wherein: and hydraulic oil or hydraulic oil and air are injected into the annular air bag (8) in a mixed mode.

4. The liquid-filled driveshaft intermediate support device of claim 1, wherein: and the support lug (7) is provided with a mounting hole (9).

5. The liquid-filled driveshaft intermediate support device of claim 1, wherein: and a dustproof component (3) is arranged between the inner ring of the rubber component (2) and the outer ring of the bearing (4).