Suspension shaft sleeve

Abstract

The utility model provides an MT3700B suspension shaft sleeve which comprises a sleeve body, a first step extending outwards in the radial direction is arranged on the outer wall of one end of the sleeve body, the first step serves as an outer ring clamp spring, and an inner clamp spring groove is machined in the inner wall of the end of the sleeve body. A second step extending inwards in the radial direction is arranged on the inner wall of the other end of the sleeve body and serves as an inner side clamping spring. An oil injection hole is formed in the middle of the sleeve body. The structure of the suspension shaft sleeve is redesigned, reliable installation of the suspension shaft sleeve can be achieved only by installing one clamping spring, cost is saved, and meanwhile the service life of the suspension shaft sleeve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of suspension shaft sleeves for electric wheel vehicles, in particular to a suspension shaft sleeve. Background Art

[0002] The installation quantity of MT3700 electric wheel vehicle suspension bushings is 20 pieces per vehicle. Each suspension bushing is originally designed with 4 retaining ring grooves (such as Figure 1 As shown), they are located at both ends of the inner wall and the outer wall of the sleeve, the retaining spring is installed in the retaining spring groove, the sleeve is installed in the seat hole of the mounting seat, and the two ends are clamped and limited by two external retaining springs, the rocker sleeve is installed inside the sleeve, and the rocker sleeve is clamped and limited by two internal retaining springs; due to the high precision of the retaining spring processing, all of them are imported. Electric wheel vehicles are frequently replaced during the maintenance process, and because the use environment of electric wheel vehicles is a mine, the road is bumpy, and the environment is poor, the retaining spring is very easy to deform during use, causing the suspension sleeve and the rocker sleeve to move, resulting in blockage of the lubricating oil channel, damage to the joint bearing and the seat holes of various parts, and increase the amount of broken repairs.

[0003] Therefore, a new type of suspension sleeve is needed, which is not easy to move out of place and does not block the lubricating oil channel during use, and protects the joint bearings and seat holes of various parts. Utility Model Content

[0004] In order to solve the above technical problems, a suspension bushing is provided.

[0005] The technical means adopted by the utility model are as follows:

[0006] A suspension sleeve comprises a sleeve body, wherein the outer wall of one end of the sleeve body is provided with a first step extending radially outward, the first step serves as an outer ring retaining spring, and the end face of the first step serves as an abutting end face abutting against the end face of a seat hole, and an inner retaining spring groove is processed at the inner wall of the sleeve body at this end;

[0007] The inner wall of the other end of the sleeve body is provided with a second step extending radially inward, the second step serving as an inner retaining spring, and the outer wall of this end of the sleeve body is used for welding with the end face of the seat hole;

[0008] An oil filling hole is arranged in the middle of the sleeve body.

[0009] Preferably, the height of the first step protruding from the outer wall of the casing body is 12 mm to 30 mm, and the width of the first step is 5 mm to 30 mm.

[0010] Preferably, the height of the second step protruding from the inner wall of the sleeve is 10 mm to 20 mm, and the width of the second step is 20 mm to 30 mm.

[0011] Preferably, the inner retaining ring groove has a groove depth of 3 mm and a groove width of 2.6 to 3 mm.

[0012] Preferably, the distance between the outer edge of the inner retaining ring groove and the end of the sleeve body is 4 mm to 5 mm.

[0013] Preferably, the diameter of the oil filling hole is 9 mm to 15 mm.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model directly sets a first step on the sleeve body to replace the structure of setting a retaining spring groove and retaining spring on one end of the outer wall of the sleeve body in the original design, and the outer wall of the other end of the sleeve body of the utility model is directly fixed by passing through the seat hole of the mounting seat and welding with the seat hole of the mounting seat, without the need to use the structure of setting a retaining spring and retaining spring groove on the outer wall, thereby ensuring the reliable connection between the sleeve body and the mounting seat, and the sleeve body does not need to be replaced in the absence of major accidents. The utility model sets a second step on the inner wall of the other end of the sleeve body to replace the retaining spring groove and retaining spring set on the other end of the inner wall of the sleeve body in the original design, directly realizing the direct abutment between the swing arm sleeve and the sleeve body end, without the need to re-set the retaining spring for positioning and limiting, and setting a retaining spring groove on the inner wall of the other end facilitates the disassembly of the swing arm sleeve. In summary, the utility model redesigns the structure of the sleeve body, and only needs to install one retaining spring to realize the reliable installation of the suspension sleeve, saving costs while extending the service life of the suspension sleeve.

[0016] Based on the above reasons, the utility model can be widely promoted in the fields of suspension sleeves and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the suspension sleeve structure in the prior art of the utility model.

[0019] Figure 2 It is a schematic diagram of a suspension sleeve structure in a specific implementation manner of the utility model. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0024] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0026] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0027] like Figure 2 As shown, a suspension sleeve comprises a sleeve body;

[0028] The outer wall of one end of the sleeve is provided with a first step 1 extending radially outward, the first step 1 serves as an outer ring retaining ring, and the end face of the first step 1 serves as an abutting end face against the end face of the seat hole, and an inner retaining ring groove 2 is processed on the inner wall of this end of the sleeve; the height of the first step 1 protruding from the outer wall of the sleeve is 12mm to 30mm, and the width of the first step 1 is 5mm to 30mm. The groove depth of the inner retaining ring groove 2 is 3mm, and the groove width is 2.6 to 3mm. The outer edge of the inner retaining ring groove 2 is 4mm to 5mm away from the end of the sleeve.

[0029] The inner wall of the other end of the sleeve is arranged with a second step 3 extending radially inward, the second step 3 serves as an inner retaining spring, and the outer wall of this end of the sleeve is used for welding with the end face of the seat hole; the height of the second step 3 protruding from the inner wall of the sleeve is 10mm~20mm, and the width of the second step 3 is 20mm~30mm.

[0030] The middle part of the sleeve body is provided with an oil injection hole 4. The diameter of the oil injection hole 4 is 9 mm to 15 mm.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A suspension sleeve, comprising a sleeve body, characterized in that: The outer wall of one end of the sleeve body is provided with a first step extending radially outward, the first step serves as an outer ring retaining ring, and the end face of the first step serves as an abutting end face abutting against the end face of the seat hole, and an inner retaining ring groove is processed at the inner wall of this end of the sleeve body; The inner wall of the other end of the sleeve body is arranged with a second step extending radially inward, the second step serves as an inner retaining spring, and the outer wall of this end of the sleeve body is used for welding with the end face of the seat hole; An oil filling hole is arranged in the middle of the sleeve body.

2. A suspension bushing according to claim 1, characterized in that: The height of the first step protruding from the outer wall of the casing body is 12 mm to 30 mm, and the width of the first step is 5 mm to 30 mm.

3. A suspension bushing according to claim 1, characterized in that: The height of the second step protruding from the inner wall of the sleeve is 10 mm to 20 mm, and the width of the second step is 20 mm to 30 mm.

4. A suspension bushing according to claim 1, characterized in that: The inner retaining ring groove has a groove depth of 3 mm and a groove width of 2.6 to 3 mm.

5. A suspension bushing according to claim 1, characterized in that: The distance between the outer edge of the inner retaining ring groove and the end of the sleeve body is 4 mm to 5 mm.

6. A suspension bushing according to claim 1, characterized in that: The diameter of the oil filling hole is 9 mm to 15 mm.

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