Device for mounting and dismounting air spring

Abstract

The invention discloses a device for mounting and dismounting an air spring, and belongs to the technical field of mounting and dismounting of air springs. The problem that in the prior art, an air spring disassembling and assembling device is complex in structure and inconvenient to carry, and consequently the air spring is inconvenient to disassemble and assemble when people go out is solved. Comprising a sleeve, a supporting piece is arranged on the outer side wall of the sleeve, at least two positioning holes distributed in the circumferential direction of the sleeve are formed in the supporting piece, and the positioning holes and the sleeve are coaxial. The device for mounting and dismounting the air spring is simple in structure and convenient to carry, when the air spring is mounted and dismounted, a bolt at the end of the air spring penetrates through a positioning hole, a sleeve is arranged at the end of the air spring in a sleeving mode, a nut is tightened, the device moves downwards, a gasket is driven to be compressed downwards, and the air spring is mounted and dismounted. The steel cable baffle ring can be mounted or dismounted when a space is reserved for the steel cable baffle ring or the steel cable baffle ring is loosened, so that convenience is brought to mounting and dismounting of the air spring, and the air spring dismounting tool is particularly suitable for mounting and dismounting of the air spring when people go out.

Description

Technical Field

[0001] The invention belongs to the technical field of air spring disassembly and assembly, and in particular relates to a device for installing and disassembling an air spring. Background Art

[0002] In the automotive industry, air springs, as an important suspension component, have a significant impact on the stability and safety of vehicles. During the research and development stage of air springs, air springs need to be frequently assembled and disassembled for various tests and adjustments. However, due to performance and product structure reasons, the disassembly and installation of air spring struts encapsulated with wire retaining rings requires the use of special equipment to eliminate the influence of internal prestress on the wire retaining rings before the wire retaining rings can be disassembled and installed, and the wire retaining rings must be removed before the next disassembly work can be carried out. When going out for testing and adjustment, due to the lack of special equipment for installing and disassembling air springs, it is necessary to find equipment resources or return to the factory to carry out the work. Therefore, it is imperative to develop a simple and portable device for installing and disassembling air springs. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a device for installing and disassembling an air spring, which has a simple structure, is easy to carry, and is convenient to use. It is particularly suitable for installing and disassembling an air spring when going out.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The present invention discloses a device for installing and removing an air spring, comprising a sleeve, wherein an outer wall of the sleeve is provided with a support member, the support member is provided with at least two positioning holes distributed along the circumference of the sleeve, and the positioning holes are coaxial with the sleeve.

[0006] Furthermore, the positioning hole is a waist hole, and the waist hole is arranged along the radial direction of the sleeve.

[0007] Furthermore, the support member is a support plate, a support rod or a support arm.

[0008] Furthermore, the support member is a support arm, the support arm corresponds to the positioning hole one by one, the positioning hole is arranged on the support arm, and the support arm is distributed along the circumference of the sleeve.

[0009] Furthermore, the number of the positioning holes is three, and the three positioning holes are respectively arranged on the three support arms.

[0010] Furthermore, two of the three support arms are symmetrically arranged relative to the other support arm.

[0011] Furthermore, the angle between the two symmetrically arranged support arms is 100°, 110° or 120°.

[0012] Furthermore, the angle between the two symmetrically arranged support arms is 120°.

[0013] Furthermore, the sleeve and the support member are structural members made of steel, aluminum alloy or PA66.

[0014] Furthermore, the upper end surface of the support arm is coplanar with the upper end surface of the sleeve, and the distance between the lower end surface of the support arm and the lower end surface of the sleeve is not less than the sum of the distance between the pressure-bearing end surface and the upper end surface of the air spring and the distance of the compression stroke of the gasket for eliminating internal prepressure.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present application provides a device for installing and removing an air spring, which is composed of a sleeve and a support member on the outer wall of the sleeve. The support member is provided with a positioning hole, has a simple structure, low manufacturing cost, and is easy to carry. When installing the air spring, the wire retaining ring is sleeved on the outer side of the washer, and the device for installing and removing the air spring is placed above the end of the air spring. The bolts at the end of the air spring pass through the corresponding positioning holes of the support member, and the sleeve is sleeved on the end of the air spring. The sleeve contacts the washer, and the nuts are screwed on the bolts. The nuts are gradually tightened in sequence to move the device downward. The sleeve applies pressure to the washer to overcome the internal stress of the air spring, so that the washer is compressed and moved downward, making room for the wire retaining ring to be installed, and the wire retaining ring is sleeved and installed in the made-up installation space. The nuts are loosened and removed, and the device is removed to complete the installation of the air spring. When disassembling the air spring, place the device for installing and disassembling the air spring above the end of the air spring, the bolt at the end of the air spring passes through the positioning hole corresponding to the support, the sleeve is sleeved on the end of the air spring, the sleeve contacts the washer, the bolt is screwed on the nut, and the nuts are gradually tightened in sequence to move the device downward, the sleeve applies pressure to the washer, overcomes the internal stress of the air spring, compresses the washer downward and moves, the wire retaining ring is loosened, the wire retaining ring is taken out of the installation space, the nut is loosened and removed, the device is removed, the wire retaining ring is taken out, and the next step of disassembling the air spring is performed to complete the disassembly of the air spring. The device for installing and disassembling the air spring of the present application has a simple structure, low manufacturing cost, is easy to carry, simple to operate, and convenient to use. It can very conveniently complete the installation and disassembly of the wire retaining ring, which brings convenience to the installation and disassembly of the air spring, and is particularly suitable for installing and disassembling the air spring when going out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention 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 only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a top view of a device for installing and removing an air spring provided by an embodiment of the present invention;

[0019] Figure 2 is a front cross-sectional view of a device for installing and removing an air spring provided by an embodiment of the present invention;

[0020] Figure 3 It is a partial cross-sectional view of a device for installing and removing an air spring provided by an embodiment of the present invention, showing a usage state of installing and removing an air spring.

[0021] Figure numerals: sleeve 1, support arm 2, positioning hole 3, nut 4, bolt 5, wire retaining ring 6, washer 7, air spring 8. DETAILED DESCRIPTION

[0022] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides a device for installing and removing an air spring, including a sleeve 1, the outer wall of the sleeve 1 is provided with a support member, the support member is provided with at least two positioning holes 3 distributed along the circumference of the sleeve 1, and the positioning holes 3 are coaxial with the sleeve 1. The sleeve 1 and the support member are fixedly connected by integral molding or welding. The number of positioning holes 3 arranged along the circumference of the sleeve 1 is two or three or more integers, and the specific number is set according to needs. The positioning hole 3 is a round hole or a waist hole or a slotted hole, which can be matched with the bolt 5 at the upper end of the air spring 8 to pass through.

[0025] A device for installing and removing air springs based on the above structure is composed of a sleeve 1 and a support member on the outer wall of the sleeve 1. The support member is provided with a positioning hole 3. The structure is simple, the manufacturing cost is low, and the device for installing and removing air springs is placed above the end of the air spring 8. The bolt 5 at the end of the air spring 8 passes through the corresponding positioning hole 3 of the support member. The sleeve 1 is sleeved on the end of the air spring 8. The sleeve 1 contacts the washer 7. The bolt 5 is screwed on the nut 4. The nuts 4 are gradually tightened in sequence to move the device downward. The sleeve 1 applies pressure to the washer 7 to overcome the internal stress of the air spring 8, so that the washer 7 is compressed and moved downward to make installation space for the wire retaining ring 6. The wire retaining ring 6 is inserted and installed in the vacated installation space. The nut 4 is loosened and removed. The device is removed to complete the installation of the air spring 8. When installing and removing the air spring 8, place the device for installing and removing the air spring above the end of the air spring 8, the bolt 5 at the end of the air spring 8 passes through the positioning hole 3 corresponding to the support, the sleeve 1 is sleeved on the end of the air spring 8, the sleeve 1 contacts the washer 7, the bolt 5 is screwed on the nut 4, and the nut 4 is gradually tightened in sequence to move the device downward, the sleeve 1 applies pressure to the washer 7, overcomes the internal stress of the air spring 8, and compresses the washer 7 downward to move the washer 7, loosens the wire retaining ring 6, removes the wire retaining ring 6 from the installation space, loosens the nut 4 and removes it, removes the device, takes out the wire retaining ring 6, and performs the next step of disassembling the air spring 8 to complete the disassembly of the air spring 8. The device for installing and removing the air spring of the present application has a simple structure, low manufacturing cost, is easy to carry, simple to operate, and convenient to use. It can very conveniently complete the installation and removal of the wire retaining ring 6, which brings convenience to the installation and removal of the air spring 8, and is particularly suitable for installing and removing the air spring 8 when going out.

[0026] As an implementation method, Figure 1 , Figure 3 As shown, the positioning hole 3 is a waist hole, and the waist hole is arranged along the radial direction of the sleeve 1.

[0027] The positioning hole 3 is set as a waist hole, and the length direction of the waist hole is set along the radial direction of the sleeve 1. The waist hole is coaxial with the sleeve 1, so that the device for installing and removing the air spring of the present application has better adaptability and versatility, and can be used on air springs 8 with different circumferential diameters but the same circumferential angle arrangement position of the upper end bolt 5. Among them, the width of the waist hole is set according to the outer diameter of the bolt 5 at the upper end of the air spring 8. For example, if the width of the waist hole is 12.2mm or 14.2mm, the width of the waist hole is 12.2mm, which is suitable for bolts 5 with an outer diameter of 12.2mm or less; the width of the waist hole is 14.2mm, which is suitable for bolts 5 with an outer diameter of 14.2mm or less.

[0028] Wherein, the support member is a support plate or a support rod or a support arm 2.

[0029] The support member can be set in various forms such as a support plate, a support rod, or a support arm 2. The position and shape of the support member can be set according to the outer diameter and position of the end bolt 5 of the air spring 8 to ensure that when the device for installing and removing the air spring of the present application is placed, the positioning hole 3 passes through the bolt 5 corresponding to the end of the air spring 8.

[0030] As an implementation method, Figure 1 As shown, the support member is a support arm 2 , the support arm 2 corresponds to the positioning holes 3 one by one, the positioning holes 3 are arranged on the support arm 2 , and the support arm 2 is distributed along the circumference of the sleeve 1 .

[0031] The support member is configured as a support arm 2, which reduces the manufacturing material of the support member, reduces the mass of the device for installing and removing the air spring of the present application, facilitates carrying, and reduces the manufacturing cost.

[0032] As an implementation method, Figure 1 As shown, the number of the positioning holes 3 is three, and the three positioning holes 3 are respectively arranged on the three support arms 2 .

[0033] When installing and removing the air spring, the three positioning holes 3 are respectively sleeved on the bolts 5 corresponding to the ends of the air spring 8, and the nuts 4 on the bolts 5 are tightened in turn. The sleeve 1 exerts better pressure on the washer 7, which is conducive to making room for the installation and removal of the wire retaining ring 6.

[0034] As an implementation method, two of the three support arms 2 are symmetrically arranged relative to the other support arm 2 .

[0035] If the first support arm 2 and the second support arm 2 are symmetrically arranged relative to the third support arm 2, during the process of tightening the nut 4, the sleeve 1 exerts a relatively uniform pressure on the washer 7, and the sleeve 1 presses the washer 7 down relatively synchronously, which is conducive to making room for the installation and removal of the wire retaining ring 6.

[0036] Preferably, the angle between the two symmetrically arranged support arms 2 is 100°, 110° or 120°.

[0037] For example, the angle between the symmetrically arranged first support arm 2 and the second support arm 2 is 100°, 110° or 120°, and the sleeve 1 exerts uniform pressure on the washer 7, and the sleeve 1 presses the washer 7 down synchronously, which is more conducive to making room for the installation and removal of the wire retaining ring 6.

[0038] As an implementation method, Figure 1 As shown, the angle between the two symmetrically arranged support arms 2 is 120°.

[0039] The angle between the first support arm 2 and the second support arm 2 is 120°, the first support arm 2 and the second support arm 2 are symmetrically arranged relative to the third support arm 2, the angle between the first support arm 2 and the third support arm 2 is 120°, and the angle between the second support arm 2 and the third support arm 2 is 120°, that is, the three support arms 2 are evenly distributed along the circumference of the sleeve 1, and the angle between two adjacent support arms 2 is 120°. The sleeve 1 exerts better and more uniform pressure on the gasket 7, and the sleeve 1 applies pressure to the gasket 7 to further press it down synchronously and evenly, which is further conducive to making room for the installation and disassembly of the wire retaining ring 6.

[0040] Wherein, the sleeve 1 and the support member are structural members made of steel or aluminum alloy or PA66.

[0041] The sleeve 1 and the support member made of materials such as steel, aluminum alloy, or PA66 have the characteristics of high hardness and high strength, which improves the service life of the device for installing and removing the air spring of the present application.

[0042] As an implementation method, Figure 3 As shown, the upper end surface of the support arm 2 is coplanar with the upper end surface of the sleeve 1, and the distance between the lower end surface of the support arm 2 and the lower end surface of the sleeve 1 is not less than the sum of the distance between the pressure-bearing end surface and the upper end surface of the air spring 8 and the distance of the compression stroke of the gasket 7 for eliminating the internal prepressure.

[0043] The distance between the lower end surface of the support arm 2 and the lower end surface of the sleeve 1 is set to ensure that there is enough space to install the wire retaining ring 6 when installing the air spring 8, so as to facilitate the installation of the wire retaining ring 6; or to ensure that there is enough space to remove the wire retaining ring 6 from the air spring 8 when disassembling the air spring 8, so as to facilitate the disassembly of the wire retaining ring 6. The distance between the lower end surface of the support arm 2 and the lower end surface of the sleeve 1 is specifically determined according to the sum of the distance between the pressure-bearing end surface and the upper end surface of the air spring 8 when the air spring 8 is disassembled and the compression stroke for eliminating the internal pre-pressure of the air spring 8.

[0044] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for installing and removing an air spring, characterized in that: It comprises a sleeve (1), the outer side wall of the sleeve (1) is provided with a support member, the support member is provided with at least two positioning holes (3) distributed along the circumference of the sleeve (1), and the positioning holes (3) are coaxial with the sleeve (1).

2. A device for installing and removing an air spring according to claim 1, characterized in that: The positioning hole (3) is a waist hole, and the waist hole is arranged along the radial direction of the sleeve (1).

3. A device for installing and removing an air spring according to claim 1, characterized in that: The support member is a support plate or a support rod or a support arm (2).

4. A device for installing and removing an air spring according to claim 3, characterized in that: The support member is a support arm (2), the support arm (2) corresponds one-to-one to the positioning hole (3), the positioning hole (3) is arranged on the support arm (2), and the support arm (2) is distributed along the circumference of the sleeve (1).

5. A device for installing and removing an air spring according to claim 4, characterized in that: The number of the positioning holes (3) is three, and the three positioning holes (3) are respectively arranged on the three support arms (2).

6. A device for installing and removing an air spring according to claim 5, characterized in that: Two of the three support arms (2) are symmetrically arranged relative to the other support arm (2).

7. A device for installing and removing an air spring according to claim 6, characterized in that: The angle between the two symmetrically arranged support arms (2) is 100°, 110° or 120°.

8. A device for installing and removing an air spring according to claim 7, characterized in that: The angle between the two symmetrically arranged support arms (2) is 120°.

9. The device for installing and removing an air spring according to claim 1, characterized in that: The sleeve (1) and the support member are structural members made of steel, aluminum alloy or PA66.

10. The device for installing and removing an air spring according to claim 4, characterized in that: The upper end surface of the support arm (2) is coplanar with the upper end surface of the sleeve (1), and the distance between the lower end surface of the support arm (2) and the lower end surface of the sleeve (1) is not less than the sum of the distance between the pressure-bearing end surface and the upper end surface of the air spring (8) and the distance of the compression stroke of the gasket (7) for eliminating internal preload.

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