CN219242056U

CN219242056U - Connection assembly

Info

Publication number: CN219242056U
Application number: CN202222553774.XU
Authority: CN
Inventors: 高欣; 蔡海杰; 王建航; 王珊
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-06-23
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to the technical field of engines, in particular to a connecting component. The coupling assembly includes: suspension bolts, washers and shock pads; the gasket is provided with an accommodating cavity, the shock pad is fixedly arranged in the accommodating cavity, and the suspension bolt penetrates through the gasket and the shock pad. The coupling assembling in this application for solve among the correlation technique when the space is not enough, can't satisfy the problem of the size demand of shock pad.

Description

Connection assembly

Technical Field

The utility model relates to the technical field of engines, in particular to a connecting component.

Background

In the prior art, in order to reduce NVH (Noise Vibration Harshness, noise, vibration and harshness) of an engine, a groove is required to be formed in a cylinder head cover of the engine, and a shock pad can be arranged in the groove, and a suspension bolt fixes the cylinder head cover through the shock pad and the groove, so that the purpose of reducing NVH of a transmitter is achieved. In this way, the grooves on the cylinder head cover are required to be matched with the size of the shock pad, the cylinder head cover is made of plastic, the shock pad is of a single structure, the space requirement is relatively large in order to meet the requirement of noise reduction, and the size requirement of the shock pad cannot be met when the space is insufficient.

Disclosure of Invention

In view of the above, the embodiment of the utility model provides a connection assembly. The damping cushion is used for solving the problem that the size requirement of the damping cushion can not be met when the space is insufficient in the related art.

The connecting component provided by the embodiment of the utility model comprises: suspension bolts, washers and shock pads;

the gasket is provided with an accommodating cavity, the shock pad is fixedly arranged in the accommodating cavity, and the suspension bolt penetrates through the gasket and the shock pad.

The coupling assembling in this application is provided with on the packing ring and holds the chamber, with the shock pad setting in holding the chamber, and can calculate the compressibility and the filling rate of shock pad earlier, in order to design into suitable size with holding the chamber, wherein, the shock pad is fixed to be set up in holding the chamber, suspension bolt wears to establish at shock pad and packing ring, shock pad and packing ring can carry out spacingly to suspension bolt, and the recess on the cylinder head cover can also be replaced in the setting of packing ring and shock pad, in order to realize shock attenuation, give sound insulation, buffering, absorb the effect of impact and isolation vibrations.

In one possible embodiment, a gap is present between the outer contour of the shock absorber mat and the inner wall of the receiving chamber.

In one possible embodiment, the gasket is integrally formed with the shock pad.

In one possible embodiment, the bottom wall of the accommodating cavity is provided with a first opening, the shock pad is provided with a second opening, the first opening and the second opening are coaxially arranged, and the suspension bolt sequentially passes through the second opening and the first opening.

In one possible embodiment, the suspension bolt comprises a head and a threaded rod fixedly connected to the head, the threaded rod passing through the first and second openings, the head being located on one side of the opening of the receiving cavity.

In one possible embodiment, the suspension bolt further comprises a sleeve, the sleeve is sleeved on the screw rod, and one end of the sleeve is connected with the head.

In one possible embodiment, the material of the shock pad is ethylene acrylate rubber.

Drawings

Fig. 1 is a schematic structural diagram of a connection assembly according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of fig. 1.

Icon: 10-suspending bolts; 11-head; 12-sleeve; 13-a screw; 20-washers; 30-a shock pad; 40-gap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The following describes a connection assembly according to an embodiment of the present utility model with reference to the accompanying drawings.

Referring to fig. 1 and 2, a connection assembly provided in an embodiment of the present utility model includes: suspension bolts 10, washers 20 and shock pads 30;

the washer 20 is provided with a containing cavity, the shock pad 30 is fixedly arranged in the containing cavity, and the suspension bolt 10 passes through the washer 20 and the shock pad 30.

The coupling assembling in this application is provided with on packing ring 20 and holds the chamber, with the shock pad 30 setting in holding the chamber, and can calculate the compressibility and the packing ratio of shock pad 30 earlier, with the chamber design of holding for suitable size, wherein, the fixed setting of shock pad 30 is holding in the chamber, suspension bolt 10 wears to establish at shock pad 30 and packing ring 20, shock pad 30 and packing ring 20 can carry out spacingly to suspension bolt 10, and the recess on the cylinder head cover is still replaced to the setting of packing ring 20 and shock pad 30, need not to set up the recess on the cylinder head cover promptly, suspension bolt 10 is when fixing the cylinder head cover, the packing ring 20 and the shock pad 30 in the coupling assembling can play shock attenuation, give sound insulation, buffering, absorb the effect of impact and isolation vibrations.

In the above embodiment, a gap 40 exists between the outer contour of the shock pad 30 and the inner wall of the receiving chamber. When the suspension bolt 10 is used for fixing the cylinder head cover, the suspension bolt 10 can apply pressure to the shock pad 30, the shock pad 30 can be compressed under the action of the pressure, and the gap 40 can enable the shock pad 30 to be stably arranged in the accommodating cavity after being compressed.

In the above embodiment, the gasket 20 is integrally formed with the shock pad 30. Specifically, the gasket 20 and the shock pad 30 may be integrally vulcanized, so that the application range of the connecting assembly is wider.

The material of the gasket 20 may be metal, so that the gasket 20 has better comprehensive performance, the metal gasket 20 is also more rigid than plastic, and the metal gasket 20 is not easy to crack and generate cracks during operation.

The material of the shock pad 30 can be rubber, in particular ethylene acrylic rubber, which has good environmental stress cracking resistance and excellent electrical performance, and extrusion lamination temperature is 316-322 ℃.

When the washer 20 and the shock pad 30 are specifically provided, in order to facilitate the suspension bolt 10 to pass through the washer 20 and the shock pad 30, a first opening may be provided on the bottom wall of the accommodating cavity of the washer 20, a second opening may be provided on the shock pad 30, and the first opening and the second opening are coaxially provided, and after the suspension bolt 10 passes through the second opening and the first opening in sequence, the suspension bolt is connected with other parts.

In the above embodiment, the suspension bolt 10 may specifically include the head 11, the screw 13 and the sleeve 12, wherein the screw 13 passes through the sleeve 12, and both the screw 13 and the sleeve 12 can pass through the second opening and the first opening, and the length of the screw 13 is greater than that of the sleeve 12, the head 11 is located at one side of the opening of the receiving cavity, and the projection of the head 11 on the shock pad 30 covers all of the first opening and the second opening, so that the head 11 can contact the shock pad 30 and/or the washer 20 for limiting.

It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present utility model without departing from the spirit and scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A connection assembly, comprising: suspension bolts, washers and shock pads;

2. The connection assembly of claim 1, wherein a gap exists between an outer profile of the shock pad and an inner wall of the receiving cavity.

3. The connection assembly of claim 1, wherein the gasket is integrally formed with the shock pad.

4. The connection assembly of claim 1, wherein the bottom wall of the receiving chamber is provided with a first opening, the shock pad is provided with a second opening, the first opening and the second opening are coaxially disposed, and the suspension bolt sequentially passes through the second opening and the first opening.

5. The connection assembly of claim 4, wherein the suspension bolt includes a head and a shank fixedly connected to the head, the shank passing through the first and second openings, the head being located on one side of the opening of the receiving cavity.

6. The connection assembly of claim 5, wherein the suspension bolt further comprises a sleeve, wherein the sleeve is sleeved on the screw, and wherein one end of the sleeve is connected with the head.

7. The connection assembly according to any one of claims 1 to 6, wherein the material of the shock pad is ethylene acrylate rubber.