CN207848276U

CN207848276U - A kind of automotive buffer block

Info

Publication number: CN207848276U
Application number: CN201820030273.4U
Authority: CN
Inventors: 陈守义; 韦祥程; 林杰
Original assignee: Liuzhou Risun Automobile Shock Absorption Technology Co Ltd
Current assignee: Liuzhou Risun Automobile Shock Absorption Technology Co Ltd
Priority date: 2018-01-09
Filing date: 2018-01-09
Publication date: 2018-09-11
Anticipated expiration: 2028-01-09

Abstract

The utility model discloses a kind of automotive buffer block, including rubber spring and gasket, the gasket is mounted on the lower part of the rubber spring, is the chamber for installing casing, the equal undulate of inner and outer wall of the rubber spring inside the rubber spring；And summit, the peak valley of waveform inner wall are corresponding with the peak value of waveform outer wall, peak valley undulation location.Advantageous effect is：The buffer stopper uses corrugated structure, can effectively limit the deflection of rubber spring, ensures static rigidity, reduces the compressive deformation of product, increase the shear-deformable of product, effectively improve fatigue strength.

Description

A kind of automotive buffer block

Technical field

The utility model is related to auto parts fields, and in particular to a kind of automotive buffer block.

Background technology

With the raising of human living standard and the development of auto industry, demand of the mankind to automobile is not merely only made For the level of walking-replacing tool, its comfort more paid close attention to now i.e. NVH performances, as the rubber component on automobile, master It is exactly to seal to want function, and dust-proof, vibration damping, buffering etc., wherein vibration damping, buffering are its main function and the most direct body of NVH It is existing.

Buffer stopper is usually mounted on vehicle longeron, as vibration damping, a kind of rubber component of buffering when being jumped on vehicle When lower jump, bridge portion after hitting, for limiting, buffering and vibration damping.Its damping property should be considered for the product, examined again Consider its fatigue behaviour (durability).The limiting buffer block in many vehicles is substantially rectangular or conical at present, the type Simple in structure, convenient for manufacture, but the rigidity of such product is relatively low, and fatigue reliability is poor, therefore we design a kind of automatic buffer Block improves the fatigue strength of product.

Utility model content

The purpose of this utility model is that solve the above-mentioned problems and provides a kind of automotive buffer block, using the structure Buffer stopper can realize the requirement of buffering and limit, when being compressed axially, product is mainly deformed in shear direction, is effectively carried The high fatigue strength of product.

The utility model is achieved through the following technical solutions above-mentioned purpose：

A kind of automotive buffer block, including rubber spring and gasket, the gasket are mounted on the lower part of the rubber spring, institute It states inside rubber spring as the chamber for installing casing, the equal undulate of inner and outer wall of the rubber spring；

And summit, the peak valley of waveform inner wall are corresponding with the peak value of waveform outer wall, peak valley undulation location.

Preferably, the rubber spring includes upper buffer body and lower buffer body, and the upper buffer body with it is described lower slow Rush body by integral forming.

Preferably, offering third limiting section on the outside of the upper buffer body and the lower buffer body link position.

Preferably, offering the first limiting section on the inside of the upper buffer body.

Preferably, the lower buffer body includes lower buffering phosphor bodies and card convex, the lower buffering phosphor bodies and card convex one It is body formed；

The lower buffering phosphor bodies and the inner wall below the card convex and offer mounting groove, the peace between the card convex Tankage is connected with gasket vulcanization, and the mounting groove is cylindrical groove；

The lower buffering phosphor bodies and the inner wall above the card convex and offer the second limiting section between the card convex.

Preferably, the bore dia that the card convex is formed is more than the diameter of trepanning among the gasket.

Preferably, first limiting section, second limiting section and the third limiting section are ring-shaped depression knot Structure；

And first limiting section is located at the peak valley position of the upper buffer body waveform inner wall；

Second limiting section is located at the peak valley position of the lower buffer body waveform inner wall；

The third limiting section is located at the summit position of the rubber spring outer wall.

Preferably, first limiting section, the second limiting section and third limiting section are arc transition.

Preferably, offering the card slot of twice strip above the upper buffer body.

Preferably, the lateral surface of the upper buffer body is smooth arc surface, the lateral surface of the lower buffer body is circle The combination of cylinder and the conical surface.

Using the above structure, the inner and outer wall of the rubber spring is processed as waveform, and formed the first limiting section, Second limiting section and third limiting section, can be when being compressed axially, and rubber spring is shear-deformable, first limiting section, second Limiting section and third limiting section can limit the deflection of buffering, reduce the compressive deformation of product.

To sum up, the beneficial effects of the utility model are：The buffer stopper uses corrugated structure, can effectively limit The deflection of rubber spring ensures static rigidity, reduces the compressive deformation of product, increase the shear-deformable of product, effectively carry High-fatigue strength.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, other drawings may also be obtained based on these drawings.

Fig. 1 is the vertical view of the utility model；

Fig. 2 is the A-A cross-section diagrams of Fig. 1.

The reference numerals are as follows：

1, rubber spring；101, upper buffer body；102, lower buffer body；1021, lower buffering phosphor bodies；1022, card convex； 1023, mounting groove；103, the first limiting section；104, third limiting section；105, the second limiting section；2, gasket.

Specific implementation mode

It, below will be to the technology of the utility model to keep the purpose of this utility model, technical solution and advantage clearer Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work Obtained all other embodiment is put, the range that the utility model is protected is belonged to.

Shown in Fig. 1-Fig. 2, the utility model provides a kind of automotive buffer block, including rubber spring 1 and gasket 2, The gasket 2 is mounted on the lower part of the rubber spring 1, and 1 inside of the rubber spring is the chamber for installing casing, described The equal undulate of inner and outer wall of rubber spring 1；

And summit, the peak valley of waveform inner wall are corresponding with the peak value of waveform outer wall, peak valley undulation location, can be formed The limiting section of recess is limited for the deflection to rubber spring 1.

For convenience of molding, and fatigue strength being improved, the rubber spring 1 includes upper buffer body 101 and lower buffer body 102, And the upper buffer body 101 is integrally formed with the lower buffer body 102.

Preferably, offering third limit on the outside of the upper buffer body 101 and 102 link position of lower buffer body Portion 104；The inside of the upper buffer body 101 offers the first limiting section 103.

The lower buffer body 102 includes lower buffering phosphor bodies 1021 and card convex 1022, lower 1021 He of buffering phosphor bodies Card convex 1022 is integrally formed；The lower buffering phosphor bodies 1021 and positioned at the inner wall and the card convex 1022 of the lower section of card convex 1022 it Between offer mounting groove 1023, the mounting groove 1023 is connected with the vulcanization of the gasket 2, can effectively avoid existing bonding side Formula fails, and improves installation strength；The mounting groove 1023 is cylindrical groove；The lower buffering phosphor bodies 1021 and be located at card convex The second limiting section 105 is offered between the inner wall and the card convex 1022 of 1022 tops.

First limiting section 103, the second limiting section 105 and third limiting section 104 can effective buffer limit, take into account Vibration damping and fatigue behaviour.

For convenience of the casing that installation is used to support, the bore dia that the card convex 1022 is formed, which is more than among the gasket 2, to be opened The diameter in hole.

For that can improve the performance of limit, first limiting section 103, second limiting section 105 and the third limit Position portion 104 is ring-shaped depression structure；

And first limiting section 103 is located at the peak valley position of 101 waveform inner wall of the upper buffer body；

Second limiting section 105 is located at the peak valley position of 102 waveform inner wall of the lower buffer body；

The third limiting section 104 is located at the summit position of 1 outer wall of the rubber spring.

To improve fatigue strength, first limiting section 103, the second limiting section 105 and third limiting section 104 are circular arc Transition.

For convenience of installation, 101 top of the upper buffer body offers the card slot of twice strip.

To improve cushion performance, the lateral surface of the upper buffer body 101 is smooth arc surface, the lower buffer body 102 Lateral surface be cylindrical surface and the conical surface combination.

Using the above structure, the inner and outer wall of the rubber spring 1 is processed as waveform, and forms the first limiting section 103, the second limiting section 105 and third limiting section 104, can be when being compressed axially, and rubber spring 1 is shear-deformable, and described first Limiting section 103, the second limiting section 105 and third limiting section 104 can limit the deflection of buffering, and the compression for reducing product becomes Shape.

Static rigidity and endurance to the buffer stopper carry out experiment detection：

1, static rigidity

Technology requires：Axial along buffer stopper applies load, when decrement is 46mm, force value 6747.3N- 9128.7N。

Test result is：When decrement is 46mm, the force value tested three times is respectively：8004.25N、8151.30N、 8382.89N being satisfied by technology requirement.

2, endurance

Technology requires：Axial along buffer stopper applies load, amplitude 0-30mm, frequency 3Hz, it is desirable that 500,000 experiments Product is without apparent crackle or deformity afterwards；

Test result is：Without cracking, abnormal phenomenon after 500,000 experiments, meet technology requirement.

Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power Subject to the protection domain that profit requires.

Claims

1. a kind of automotive buffer block, it is characterised in that：Including rubber spring and gasket, the gasket is mounted on the rubber spring Lower part, be the chamber for installing casing inside the rubber spring, the inner and outer wall of the rubber spring is in wave Shape；

2. automotive buffer block according to claim 1, it is characterised in that：The rubber spring includes upper buffer body and lower buffering Body, and the upper buffer body and the lower buffering body by integral forming.

3. automotive buffer block according to claim 2, it is characterised in that：The upper buffer body and the lower buffer body connection position The outside set offers third limiting section.

4. automotive buffer block according to claim 3, it is characterised in that：The first limit is offered on the inside of the upper buffer body Portion.

5. automotive buffer block according to claim 4, it is characterised in that：The lower buffer body includes lower buffering phosphor bodies and card Convex, the lower buffering phosphor bodies and card convex are integrally formed；

The lower buffering phosphor bodies and the inner wall below the card convex and offer mounting groove, the mounting groove between the card convex Vulcanize with the gasket and connect, the mounting groove is cylindrical groove；

6. automotive buffer block according to claim 5, it is characterised in that：The bore dia that the card convex is formed is more than the gasket The diameter of intermediate trepanning.

7. automotive buffer block according to claim 6, it is characterised in that：First limiting section, second limiting section with The third limiting section is ring-shaped depression structure；

8. automotive buffer block according to claim 7, it is characterised in that：First limiting section, the second limiting section and third Limiting section is arc transition.

9. according to any automotive buffer blocks of claim 2-8, it is characterised in that：Twice are offered above the upper buffer body The card slot of strip.

10. automotive buffer block according to claim 9, it is characterised in that：The lateral surface of the upper buffer body is smooth circle Cambered surface, the lateral surface of the lower buffer body are the combination on cylindrical surface and the conical surface.