CN112339872A

CN112339872A - Connecting bearing between cab and frame

Info

Publication number: CN112339872A
Application number: CN201910728835.1A
Authority: CN
Inventors: 夏勇; 彭立华; 郭春杰; 路英竹
Original assignee: Bogo Rubber Plastic Zhuzhou Co ltd
Current assignee: Bogo Rubber Plastic Zhuzhou Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2021-02-09

Abstract

The invention discloses a connecting bearing between a cab and a frame, which comprises a framework, a wear-resistant sleeve arranged on the inner periphery of the framework, a vibration damping sleeve arranged on the outer periphery of the framework and an inner sleeve arranged on the inner periphery of the wear-resistant sleeve, wherein the hardness of the wear-resistant sleeve is greater than that of the vibration damping sleeve, the framework, the wear-resistant sleeve and the vibration damping sleeve are connected into a whole, and the inner sleeve and the wear-resistant sleeve can rotate relatively. The invention has the advantages of simple structure, capability of realizing cab turnover, contribution to isolating frame vibration and the like.

Description

Connecting bearing between cab and frame

Technical Field

The invention relates to a commercial vehicle, in particular to a connecting bearing between a cab and a frame.

Background

At present, most commercial vehicles are 'flathead vehicles', namely, the whole front part of a vehicle head is approximately vertical to the ground, parts such as an engine are arranged below a cab, and when the parts such as the engine are maintained and overhauled, the cab needs to be turned over to the front part by a certain angle, so that a certain operation space is formed between the cab and a vehicle frame. Meanwhile, in order to ensure the comfort of drivers, passengers and the like, the vibration of the frame is required to be isolated as much as possible. The existing connecting bearing can realize the overturning of a cab, but has poor isolation on the vibration of a frame, and cannot meet the requirement of comfort.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a connecting bearing between a cab and a frame, which has a simple structure, can realize cab turnover and is beneficial to isolating frame vibration.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a connection bearing between driver's cabin and frame, includes the skeleton, locate the wear-resisting cover of skeleton internal periphery, locate the damping cover of skeleton periphery and locate the interior endotheca of wear-resisting cover internal periphery, the hardness of wear-resisting cover is greater than the hardness of damping cover, skeleton, wear-resisting cover and damping cover connect into whole, the endotheca with can rotate relatively between the wear-resisting cover.

As a further improvement of the above technical solution: the abrasion-resistant sleeve and the vibration damping sleeve are rubber sleeves, and the framework, the abrasion-resistant sleeve and the vibration damping sleeve are vulcanized into a whole.

As a further improvement of the above technical solution: the inner sleeve is in interference fit with the wear-resistant sleeve.

As a further improvement of the above technical solution: and a lubricating layer is arranged between the inner sleeve and the wear-resistant sleeve.

As a further improvement of the above technical solution: the wear-resisting cover is T type structure, and the great one end of diameter is equipped with first seal lip.

As a further improvement of the above technical solution: the one end that wear-resisting cover diameter is less is equipped with the second seal lip, and wear-resisting cover inner wall is equipped with a plurality of oil storage tanks along circumference, each the oil storage tank is located both ends between first seal lip and the second seal lip.

Compared with the prior art, the invention has the advantages that: the connecting bearing between the cab and the frame, disclosed by the invention, has the advantages that the framework, the wear-resistant sleeve and the vibration damping sleeve are connected into a whole, the inner sleeve and the wear-resistant sleeve can rotate relatively, and after the connecting bearing finishes loading, the vibration damping sleeve and the inner sleeve are respectively connected with the frame and the cab, so that the cab can be overturned relative to the frame; the wear-resisting cover hardness sets up great, or harder, and the wearability is good to be favorable to the relative rotation between endotheca and the wear-resisting cover, and then make the frame transmit the vibration of endotheca difficult further transmission to wear-resisting cover, the damping cover hardness sets up less, or softer, is favorable to keeping apart the vibration of frame, improves the travelling comfort in the driver's cabin.

Drawings

Fig. 1 is a schematic sectional view showing a first embodiment of a connection bearing between a cab and a vehicle frame according to the present invention.

Fig. 2 is a schematic sectional view of a second embodiment of a connection bearing between a cab and a vehicle frame according to the present invention.

Fig. 3 is a schematic structural view of the present invention with the inner sleeve removed.

Fig. 4 is a side view schematically showing the construction of the connection bearing between the cab and the vehicle frame according to the present invention.

The reference numerals in the figures denote: 1. a framework; 2. a wear-resistant sleeve; 21. a first sealing lip; 22. an oil storage tank; 23. a second sealing lip; 3. a damping sleeve; 4. an inner sleeve; 5. and a lubricating layer.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples of the specification.

Fig. 1 to 4 show an embodiment of a connection bearing between a cab and a vehicle frame according to the present invention, the connection bearing between the cab and the vehicle frame of the present embodiment includes a frame 1, a wear-resistant sleeve 2 disposed on an inner periphery of the frame 1, a damping sleeve 3 disposed on an outer periphery of the frame 1, and an inner sleeve 4 disposed on an inner periphery of the wear-resistant sleeve 2, a hardness of the wear-resistant sleeve 2 is greater than a hardness of the damping sleeve 3, the frame 1, the wear-resistant sleeve 2, and the damping sleeve 3 are integrally connected, and the inner sleeve 4 and the wear-resistant sleeve 2 can rotate relatively.

The connecting bearing between the cab and the frame, the framework 1, the wear-resistant sleeve 2 and the damping sleeve 3 are connected into a whole, the inner sleeve 4 and the wear-resistant sleeve 2 can rotate relatively, and after the connecting bearing finishes loading, the damping sleeve 3 and the inner sleeve 4 are respectively connected with the frame and the cab, so that the cab can be overturned relative to the frame; the 2 hardness settings of wear-resisting cover great, or harder, the wearability is good to be favorable to endotheca 4 and the relative rotation between wear-resisting cover 2, and then make the frame transmit to the difficult further transmission of the vibration of endotheca 4 to wear-resisting cover 2, the 3 hardness settings of damping cover is less, or softer, is favorable to keeping apart the vibration of frame, improves the travelling comfort in the driver's cabin.

As a preferred technical scheme, in this embodiment, the wear-resistant sleeve 2 and the damping sleeve 3 are both rubber sleeves, the framework 1, the wear-resistant sleeve 2 and the damping sleeve 3 are vulcanized into a whole, and the framework 1, the wear-resistant sleeve 2 and the damping sleeve 3 have good structural stability, high strength and low manufacturing cost. After the framework 1, the wear-resistant sleeve 2 and the damping sleeve 3 are vulcanized into a whole, the inner sleeve 4 can be installed in a pressing-in mode. In the vulcanization process, the condition that mixed rubber channeling does not exist between the inner layer rubber and the outer layer rubber is required to be ensured, and the performance difference between the wear-resistant sleeve 2 and the damping sleeve 3 is ensured. The materials of the framework 1 and the inner sleeve 4 can be the same as those of the existing various connecting bearings, and the structure and the size of the inner sleeve 4 can be adjusted according to different requirements; the outer diameter of the damping sleeve 3 is sized to ensure that the damping sleeve 3 and the bracket do not slide relative to each other when the cab is turned over.

As a preferable technical solution, in this embodiment, the inner sleeve 4 and the wear-resistant sleeve 2 are in interference fit.

Further, in the present embodiment, a lubricating layer 5 is provided between the inner sleeve 4 and the wear-resistant sleeve 2. The lubricating layer 5 may be, for example, grease having a high viscosity, and has good retainability and is less likely to spill. The lubricating layer 5 is arranged to reduce the friction torque between the inner sleeve 4 and the wear-resistant sleeve 2, so that the inner sleeve 4 can rotate freely, the vibration of the inner sleeve 4 is not easy to be transmitted to the wear-resistant sleeve 2, and the comfort in a cab is further improved.

Furthermore, in the present embodiment, the wear-resistant sleeve 2 has a T-shaped structure, and the end with the larger diameter is provided with a first sealing lip 21. The wear-resistant sleeve 2 and the inner sleeve 4 are sealed through the first sealing lip 21, the structure is simple and reliable, lubricating grease leakage is prevented, and reliability after long-time use is guaranteed.

Furthermore, in the present embodiment, a second sealing lip 23 is disposed at the end of the wear-resistant sleeve 2 with a smaller diameter, a plurality of oil storage grooves 22 are disposed on the inner wall of the wear-resistant sleeve 2 along the circumferential direction, and each oil storage groove 22 is located between the first sealing lip 21 and the second sealing lip 23. The grease can be stored in the respective oil reservoirs 22, and leakage of the stored grease can be prevented by the seal structures at both ends. As a preferable mode, the seal lip may be, for example, a combination of an arc surface and a slope surface, a combination of an arc surface and an arc surface, or the like.

The connecting bearing between the cab and the frame of the embodiment can effectively support the cab, realize the follow-up and turnover of the cab and simultaneously isolate the vibration of the frame; because the slip moment between the inner sleeve and the wear-resistant sleeve is small, the random small-angle rotation of the cab during normal work is favorably realized, and the comfort is improved.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. The utility model provides a connection bearing between driver's cabin and frame which characterized in that: including skeleton (1), locate skeleton (1) interior week wear-resisting cover (2), locate skeleton (1) periphery damping cover (3) and locate wear-resisting interior endotheca (4) of covering (2) interior week, the hardness of wear-resisting cover (2) is greater than the hardness of damping cover (3), skeleton (1), wear-resisting cover (2) and damping cover (3) connect into whole, endotheca (4) with can rotate relatively between wear-resisting cover (2).

2. A connection bearing between a cab and a frame according to claim 1, characterized in that: the wear-resistant sleeve (2) and the vibration damping sleeve (3) are rubber sleeves, and the framework (1), the wear-resistant sleeve (2) and the vibration damping sleeve (3) are vulcanized into a whole.

3. A connection bearing between a cab and a frame according to claim 1, characterized in that: the inner sleeve (4) is in interference fit with the wear-resistant sleeve (2).

4. A connection bearing between a cab and a frame according to claim 1, 2 or 3, characterized in that: and a lubricating layer (5) is arranged between the inner sleeve (4) and the wear-resistant sleeve (2).

5. A connection bearing between a cab and a frame according to claim 4, characterized in that: the wear-resistant sleeve (2) is of a T-shaped structure, and a first sealing lip (21) is arranged at one end with a larger diameter.

6. A connection bearing between a cab and a frame according to claim 5, characterized in that: the one end that wear-resisting cover (2) diameter is less is equipped with second seal lip (23), and wear-resisting cover (2) inner wall is equipped with a plurality of oil storage tanks (22) along circumference, each oil storage tank (22) are located between first seal lip (21) and second seal lip (23).