CN111927911A

CN111927911A - Gasket structure for leaf spring

Info

Publication number: CN111927911A
Application number: CN202010586668.4A
Authority: CN
Inventors: 高苗; 石朝阳; 刘安全; 张碧军
Original assignee: Dongfeng Motor Chassis Systems Co Ltd
Current assignee: Dongfeng Motor Chassis Systems Co Ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2020-11-13

Abstract

A gasket structure for a leaf spring relates to the field of assembly of the leaf spring in automobile parts, and is arranged between an upper leaf spring and a lower leaf spring and comprises a gasket body; the gasket comprises a gasket body, at least two positioning pins and a positioning pin, wherein the positioning pins are fixed on the lower end surface of the gasket body; the wear-resistant layer is fixed on the upper end face of the gasket body; the wear-resistant layer is internally provided with a hollow unit; through carrying out structural design to the gasket between the leaf spring from top to bottom to mutually support with lower leaf spring, for the stability that traditional gasket structure can effectual assurance gasket installation, stop the emergence of rotation phenomenon, effectively prolonged its life.

Description

Gasket structure for leaf spring

Technical Field

The invention relates to the field of assembly of a steel plate spring in an automobile part, in particular to a gasket structure for the steel plate spring.

Background

The conventional spacer structure provided between the upper plate spring 100 and the lower plate spring 200 is shown in fig. 1, and is installed by forming a positioning hole at the end of the lower plate spring 200 and installing a spacer having only one pin in the positioning hole to realize single hole positioning.

Just because the locating is the haplopore, the easy rotation phenomenon that takes place of gasket when the leaf spring during operation for continuous friction between the terminal surface of gasket and the leaf spring from top to bottom further accelerates the wearing and tearing of gasket, leads to the life-span to reduce.

Disclosure of Invention

Aiming at the problems, the invention provides a novel gasket structure scheme to solve the problems of easy rotation and accelerated abrasion of the gasket.

The technical scheme provided by the invention is as follows:

a gasket structure for a steel plate spring is arranged between an upper plate spring and a lower plate spring and comprises a gasket body; the gasket comprises a gasket body, at least two positioning pins and a positioning pin, wherein the positioning pins are fixed on the lower end surface of the gasket body; the wear-resistant layer is fixed on the upper end face of the gasket body; the wear-resistant layer is internally provided with a hollow unit.

Furthermore, the hollow units are multiple, the hollow units are arranged in the wear-resistant layer in an array mode, and each hollow unit extends along the width direction of the wear-resistant layer.

Further, a heat insulation layer is further stacked between the wear-resistant layer and the gasket body.

Further, the heat insulation layer is a nylon gasket.

Further, a buffer layer is further arranged between the heat insulation layer and the gasket body in an overlapping mode.

Furthermore, the wear-resistant layer, the heat-insulating layer and the buffer layer are fixed with the gasket body through bolt locking.

The beneficial effect that adopts this technical scheme to reach does:

through carrying out structural design to the gasket between the leaf spring from top to bottom to mutually support with lower leaf spring, for the stability that traditional gasket structure can effectual assurance gasket installation, stop the emergence of rotation phenomenon, effectively prolonged its life.

Drawings

Fig. 1 is a structural view of a conventional spacer mounting.

Fig. 2 is a perspective view of the gasket structure of the present invention.

Fig. 3 is a sectional view of a-a in fig. 2.

Fig. 4 is an installation structure view of the gasket structure of the present invention.

Wherein: 10 gasket bodies, 20 positioning pins, 30 wear-resistant layers, 31 hollowed-out units, 40 heat insulation layers, 50 buffer layers, 100 upper plate springs and 200 lower plate springs.

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 invention.

The invention provides a gasket structure for a steel plate spring, which is arranged between an upper plate spring 100 and a lower plate spring 200, and the gasket is arranged between the upper plate spring and the lower plate spring, so that the direct friction of the upper plate spring and the lower plate spring during working can be avoided, and the effect of reducing noise can be achieved through the gasket, therefore, the gasket provided by the invention is also called as a noise reduction sheet in the prior art.

In the embodiment of the present invention, the gasket structure includes a gasket body 10, and the gasket body 10 is a common metal wear plate; at least two positioning pins 20 are disposed on the lower end surface of the gasket body 10, and the positioning pins 20 are used to be inserted into positioning holes disposed on the lower leaf spring 200 and perform clearance fit with the positioning holes to ensure smooth connection between the positioning pins 20 and the positioning holes.

The specific number of the positioning pins 20 is not consistent with the number of the positioning holes arranged on the lower leaf spring 200; for example, two positioning holes are provided on the lower plate spring 200, but the number of the positioning pins 20 should be two; instead, three positioning holes are provided in the plate spring 200, and the number of the positioning pins 20 may be three or two, and the two positioning pins 20 should correspond to two of the three positioning holes.

In this embodiment, the lower plate spring 200 is provided with two positioning holes, and the central connecting line of the two positioning holes is the same as the length direction of the lower plate spring 200; the number of the positioning pins 20 provided here is also two, and the arrangement structure of the two positioning pins 20 is the same as that of the two positioning holes.

The stability of gasket installation has been realized through the mode that adopts the diplopore location, compares in current haplopore location, can fundamentally stop the pivoted phenomenon of gasket, has reduced the gasket wear rate simultaneously.

In order to further reduce the wear rate of the gasket and prolong the service life of the gasket, the embodiment further provides a wear-resistant layer 30 on the upper end surface of the gasket body 10, the wear-resistant layer 30 directly contacts with the upper plate spring 100, and the hollow unit 31 is arranged in the wear-resistant layer 30.

Through carrying out the fretwork design to wearing layer 30 to leaf spring 100's stability is gone up in the assurance, avoids appearing wearing layer 30 local wear too big slope that leads to going up leaf spring 100 appearance part, and fretwork unit 31's setting can play better buffering shock attenuation effect, thereby effectively reduces the friction frequency between gasket body 10 and lower leaf spring 200.

In this embodiment, the plurality of hollow units 31 are arranged in the wear-resistant layer 30 in an array, and each hollow unit 31 extends along the width direction of the wear-resistant layer 30.

In specific design and use, a plurality of fretwork units 31 also can not be arranged in array, can be arranged in disorder, and only in manufacturing, the fretwork unit 31 that the array set up makes things convenient for the manufacturing of grinding apparatus, does benefit to the manufacturing cost who reduces the enterprise.

In this embodiment, a heat insulation layer 40 is further stacked between the wear-resistant layer 30 and the gasket body 10, and the heat insulation layer 40 is arranged to prevent heat transfer caused by friction between the upper plate spring 100 and the wear-resistant layer 30, so that the impact of the heat transfer at high temperature is reduced to a certain extent while the cushioning effect is achieved.

Preferably, the heat insulation layer 40 is a nylon gasket, and the nylon gasket is widely applied to various industrial fields and has the characteristics of excellent insulating property, no magnetism, heat insulation, light weight and the like.

In this embodiment, a buffer layer 50 is further stacked between the thermal insulation layer 40 and the gasket body 10, and the buffer layer 50 is used to sufficiently reduce the transmission of vibration of the upper and lower plate springs in the working process, so as to ensure the stability of the upper and lower plate springs; meanwhile, the design of the buffer layer 50 is beneficial to ensuring the stress uniformity of the whole gasket structure, and the phenomenon that the service life of the gasket body 10 is influenced by excessive abrasion caused by local oscillation is avoided.

In this embodiment, in order to ensure that the wear-resistant layer 30, the thermal insulation layer 40 and the buffer layer 50 which are stacked one on another can be stably and fixedly mounted on the gasket body 10, bolts are passed through bolt through holes which are respectively formed in the wear-resistant layer 30, the thermal insulation layer 40 and the buffer layer 50 and are locked with the gasket body 10, so that the wear-resistant layer 30, the thermal insulation layer 40 and the buffer layer 50 are locked and fixed; of course, in a specific use, the wear-resistant layer 30, the thermal insulation layer 40 and the buffer layer 50 can be fixed to each other and adhered to the gasket body 10 by means of an adhesive, so as to form the gasket structure.

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 invention, 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 spacer structure for a leaf spring, the spacer structure being provided between an upper leaf spring (100) and a lower leaf spring (200), characterized in that the spacer structure comprises

A gasket body (10);

the gasket comprises at least two positioning pins (20), wherein the positioning pins (20) are fixed on the lower end face of the gasket body (10); and

the wear-resistant layer (30) is fixed on the upper end face of the gasket body (10); the wear-resistant layer (30) is internally provided with a hollow unit (31).

2. The pad structure according to claim 1, wherein the plurality of the hollow units (31) are arranged in an array in the wear-resistant layer (30), and each of the hollow units (31) extends along the width direction of the wear-resistant layer (30).

3. A shim structure according to claim 1, characterized in that a thermal insulating layer (40) is further superimposed between the wear layer (30) and the shim body (10).

4. A gasket construction according to claim 3, characterised in that the insulating layer (40) is a nylon gasket.

5. Gasket construction according to claim 3 or 4, characterised in that a cushioning layer (50) is further superimposed between the thermally insulating layer (40) and the gasket body (10).

6. The gasket structure of claim 5, wherein the wear layer (30), the thermal insulation layer (40) and the buffer layer (50) are locked and fixed with the gasket body (10) through bolts.