Dust cover fixing support of air spring

Abstract

According to the dust cover fixing support of the air spring, on the basis of the structure of a common annular support, the integrated supporting ring structure is additionally arranged, the matching area between the support and an aluminum pile casing is increased through the additional ring structure, the inner side face of the supporting ring is a flat arc face, and the shape of the supporting ring is matched with the outer circumferential face of the aluminum pile casing in a concave-convex mode. The inner circumferential face of the supporting ring is fixedly attached to the outer circumferential face of the aluminum pile casing, due to the fact that a vent hole needs to be reserved in the support body, it is difficult to guarantee that the supporting attaching face between the support body and the aluminum pile casing is large enough, and it is difficult to guarantee flatness, and the situation can be effectively solved through the additional supporting ring. The supporting and positioning effect between the support body and the aluminum pile casing is effectively enhanced through the supporting ring, the firmness degree of positioning is guaranteed in cooperation with gluing, the situation that when the support body deforms to a certain degree, the dust cover support is disengaged from the preset position of the surface of the aluminum pile casing is avoided, and abnormal working sound of the air spring is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, specifically, relates to a dust cover fixing support of air spring. BACKGROUND

[0002] Air spring is filled with compressed air in a sealed container, and the elasticity is realized by using the compressibility of gas. Air spring has ideal nonlinear elastic characteristics. After installing height adjusting device, the height of the vehicle body does not change with the increase and decrease of load, the spring stiffness can be designed to be lower, and the ride comfort is good. The existing air spring is insufficient in structure ventilation, and the air spring air bag skin contraction is unstable during operation. In order to solve the problem of insufficient structure ventilation, a fixed support is used to control the ventilation of air spring. The fixed support is installed on the outer peripheral surface of one end of the air bag skin, and a clamp is arranged on the outer edge of the support to control the ventilation and fix the dust cover.

[0003] The existing support cannot strongly fix the aluminum protection cylinder and the dust cover due to the structure, and abnormal noise will be generated during driving. In order to solve the abnormal noise, the aluminum protection cylinder and the dust cover support are strongly fixed to achieve the effect of integrity. In this process, the dust cover support plays the role of strongly fixing the dust cover and the aluminum protection cylinder; the air spring dust cover fixing is composed of aluminum protection cylinder, dust cover support and dust cover, and needs to work in the naked environment with dust at-40 DEG C to 80 DEG C. The dust cover support plays the role of fixing the dust cover and providing breathing capacity, ensures that the dust cover does not produce wear and tear on the bag skin during the working of air spring, and the dust cover does not produce the risk of suction. The existing dust cover support is basically fixed by being clamped in the aluminum protection cylinder slot. Considering the working environment of the support, the support material shrinks and deforms in low temperature environment, resulting in the failure of the fitting positioning between the dust cover support and the aluminum protection cylinder, so that the dust cover support will move up and down during work, thereby producing the risk of abnormal noise.

[0004] In summary, the dust cover support of the existing air spring for automobile has the technical problem that the support structure is easy to deform, resulting in abnormal noise during the working of air spring. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the dust cover support of the existing air spring for automobile has the technical problem that the support structure is easy to deform, resulting in abnormal noise during the working of air spring.

[0006] In order to solve the above problems, the utility model provides a dust cover fixing support of air spring, including the support main part of circular ring structure, the aluminium bushing of air spring is pasted to the inner peripheral surface of support main part, the outer peripheral surface of support main part is pasted and fixed with the inner edge surface of air spring dust cover, both sides of support main part are provided with vent hole, one side end surface of support main part is provided with support ring, the support ring is circular ring and is integrally connected with support main part, the inner peripheral wall of support ring is in static cooperation with the outer peripheral wall of aluminium bushing, and the support ring is used for pasting and supporting fixed with the outer peripheral surface of aluminium bushing.

[0007] The novel dust cover fixing support increases the integrated support ring structure on the basis of the structure of the general annular support, increases the cooperation area between the support and the aluminium bushing through the additional ring structure, the inner side surface of the support ring is a smooth circular surface, the shape is matched with the concave-convex surface of the outer peripheral surface of the aluminium bushing, the inner peripheral surface of the support ring is pasted and fixed with the outer peripheral surface of the aluminium bushing, because the vent hole needs to be reserved on the support main body, it is difficult to ensure that the support pasting surface between the support main body and the aluminium bushing is large enough, and it is difficult to ensure that it is smooth, and the additional support ring can effectively solve this situation, the support positioning effect between the support main body and the aluminium bushing is effectively enhanced through the support ring, and the firmness of positioning is ensured through the cooperation of glue, so that the dust cover support is prevented from being separated from the preset position on the surface of the aluminium bushing when the support main body is deformed to a certain extent, and the abnormal noise of the air spring during work is effectively avoided.

[0008] As a preferred scheme, the aluminium bushing is provided with a circular ring-shaped groove structure corresponding to the installation position of the support main body, the side edge of the support main body is sunk into the groove structure to form a concave-convex cooperation, and the area where the support ring is pasted with the aluminium bushing is located outside the groove structure. This design further optimizes the positioning between the support and the aluminium bushing, the groove structure is arranged at the installation position of the support main body on the aluminium bushing, the size of the groove structure corresponds to the support main body, and the support main body is installed in the groove through the concave-convex cooperation, so that the firmness of mutual fixation between the support main body and the aluminium bushing is further ensured.

[0009] As a preferred scheme, a stepped surface transition structure is arranged at the transition position of the inner edge surface of the support main body and the support ring, and the height of the stepped surface transition structure matches the groove depth of the groove structure. On the basis of the above-mentioned structure of the aluminium bushing provided with the groove, the structure of the support ring is optimized, the stepped surface transition structure is arranged at the transition position between the support main body and the support ring, the height of the step matches the groove depth, the support main body can be clamped into the groove through the structure, and the corresponding support ring is pasted to the aluminium bushing outside the groove structure, so that the tightness of the support pasting with the aluminium bushing is further improved.

[0010] As a preferred scheme, the spacing between the outer edge of the support body and the inner edge of the sink structure is in the range of 0.4mm-0.6mm, and the groove depth of the sink structure is in the range of 0.4mm-0.6mm. This design optimizes the fit size of the concave-convex fit between the support body and the sink, and the optimal spacing value is 0.5mm, and the groove depth is 0.5mm, which can ensure that the support body and the sink are tightly fitted and easy to assemble.

[0011] As a preferred scheme, a 3M adhesive pad is provided between the inner edge surface of the support ring and the aluminum sleeve. This design optimizes the fixed manner between the inner edge surface of the support ring and the aluminum sleeve, and the two are bonded by a 3M adhesive pad. The material properties of the 3M pad can ensure that the bonding connection can guarantee good fitting effect at normal environmental temperature of-40℃-80℃, and the implementation is easy to operate and simple to operate.

[0012] As a preferred scheme, the width of the 3M adhesive pad is in the range of 8mm-12mm. This design optimizes the bonding width of the 3M adhesive pad, and the optimal pad width is 10mm, which ensures the tightness of the bonding.

[0013] As a preferred scheme, the air hole on the side of the support body connected with the support ring is located between the inner edge surface of the support body and the outer edge surface of the support ring. This design optimizes the air hole design of the combined position of the support body and the support ring. Through such air hole position design, the structure of the air hole can avoid damaging the flatness of the inner side surface of the side support body, and can effectively ensure the fit between the support and the outer side surface of the aluminum sleeve.

[0014] As a preferred scheme, the support body includes two half-ring members that are connected to each other at the end positions, and each half-ring member is integrally connected with a half-ring support ring. This mechanism optimizes the overall design of the support body, and adopts a design of two half-rings that are connected to each other to form a complete ring. This structure is suitable for the fixing design of the dust cover support, and avoids the difficulty of installing the support body with a complete ring structure and the possibility of causing scratches during installation.

[0015] As a preferred scheme, one end of the half-ring member is provided with a socket structure, and the other end is provided with a plug structure, and the two half-ring members are connected to each other in a complete ring shape through the plug structure and the socket structure. This design optimizes the connection method between the two half-ring members, and both adopt a design of one end provided with a plug structure and the other end provided with a socket structure. The plug of one end of the half-ring member is inserted into the socket of the other half-ring member to fix them. This design is simple in structure, easy to install, firm in fixation, and suitable for the elastic material of the support body itself.

[0016] As a preferred scheme, the outer peripheral surface of the support body is provided with a circular ring-shaped clamping groove structure for cooperating with the clamping and fixing of the clamping hoop structure. This design further optimizes the support body design. The outer periphery of the support body is provided with a ring-shaped clamping groove structure which is recessed inwardly and can form a concave-convex cooperation with the clamping hoop for fixing the support body, thereby increasing the combined tightness between the support body and the clamping hoop and avoiding the clamping hoop from falling off after being buckled and fixed to the outer periphery of the support body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 An assembly position overall structure schematic diagram of the dust cover fixing support of the air spring is provided in the utility model.

[0018] Figure 2 An overall structure schematic diagram of the dust cover fixing support of the air spring is provided in the utility model.

[0019] Figure 3 For Figure 2 A partial structure of the dust cover fixing support of the air spring is provided in the utility model.

[0020] Figure 4 For Figure 2 A cross-sectional structure schematic diagram of the dust cover fixing support of the air spring is provided in the utility model.

[0021] Among them, Figures 1-4 Among them:

[0022] 1, support body; 2, support ring; 3, air hole; 4, clamping groove structure; 5, aluminum protection tube; 6, bolt structure; 7, socket structure. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model will be further described in combination with specific embodiments.

[0024] Before the working principle of the utility model is described in detail, the description of the utility model needs to be further explained: in the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term '' install '', '' set up '', '' connect '' and the like, should do broad sense understanding, for example '' connect '', can be fixed connection, also can be detachable connection, or integral connection, can be mechanical connection, can be direct connection, can indirectly connect through intermediate medium, also can be two elements welded connection. For ordinary skilled person in the art, the above-mentioned term can be understood as the specific meaning in the utility model.

[0026] Reference Figures 1-4 The following examples are described as follows, Figure 1 The utility model provides a kind of overall structure schematic diagram of assembly position of dust cover fixing support of air spring; Figure 2 The utility model provides a kind of overall structure schematic diagram of dust cover fixing support of air spring; Figure 3 For Figure 2 Partial structure of dust cover fixing support of hollow air spring; Figure 4 For Figure 2 Sectional structure schematic diagram of dust cover fixing support of hollow air spring.

[0027] The dust cover fixing support of air spring provided in the embodiment, including the support body 1 of circular ring structure, the aluminum cylinder 5 of air spring is attached to the inner peripheral surface of support body 1, the inner peripheral surface of support body 1 is attached and fixed with the inner edge surface of air spring dust cover, the air hole 3 is arranged on both sides of support body 1, the support ring 2 is arranged on one side end surface of support body 1, the support ring 2 is circular ring and is integrally connected with support body 1, the inner peripheral wall of support ring 2 is in static cooperation with the outer peripheral wall of aluminum cylinder 5, and the support ring 2 is used for supporting and fixing with the outer peripheral surface of aluminum cylinder 5.

[0028] The novel dust cover fixing support is based on the structure of general annular support, and the integrated support ring 2 structure is added, the matching area between the support and the aluminum cylinder 5 is increased by the additional ring structure, the inner side surface of the support ring 2 is a smooth arc surface, the shape is matched with the outer peripheral surface of the aluminum cylinder 5, the inner peripheral surface of the support ring 2 is attached and fixed with the outer peripheral surface of the aluminum cylinder 5, since the air hole 3 needs to be reserved on the support body 1, it is difficult to ensure that the support attachment surface between the support body 1 and the aluminum cylinder 5 is large enough, and it is difficult to ensure smoothness, and the additional support ring 2 can effectively solve this situation, the support and positioning effect between the support body 1 and the aluminum cylinder 5 is effectively enhanced by the support ring 2, and the firmness of positioning is ensured by cooperating with glue, so that the dust cover support is prevented from being out of the preset position on the surface of the aluminum cylinder 5 when the support body 1 deforms, and the abnormal noise of the air spring is effectively avoided.

[0029] In the technical scheme provided by the embodiment, the aluminum protector 5 is provided with a circular groove structure corresponding to the position of the support body 1, the side edge of the support body 1 is sunken into the groove structure to form a concave-convex cooperation, and the area where the support ring 2 is attached to the aluminum protector 5 is located outside the groove structure. This design further optimizes the positioning between the support and the aluminum protector 5. The groove structure is provided at the position corresponding to the installation position of the support body 1 of the aluminum protector 5, and the size of the groove structure corresponds to the support body 1. When installed, the support body 1 is fitted into the groove through the concave-convex cooperation, further ensuring the firmness of the mutual fixation between the support body 1 and the aluminum protector 5.

[0030] In the technical scheme provided by the embodiment, a step surface transition structure is arranged at the transition position of the inner edge surface of each of the support body 1 and the support ring 2, and the height of the step surface transition structure matches the groove depth of the groove structure. Based on the structure of the above-mentioned aluminum protector 5 provided with a groove, the structure of the support ring 2 is optimized accordingly. The step height and the groove depth are matched, the support body 1 can be clamped into the groove through this structure, and the corresponding support ring 2 is attached to the aluminum protector 5 outside the groove structure, further improving the tightness of the attachment of the support to the aluminum protector 5.

[0031] In the technical scheme provided by the embodiment, the distance between the outer side edge of the support body 1 and the inner side edge of the groove structure is in the range of 0.4mm-0.6mm, and the groove depth of the groove structure is in the range of 0.4mm-0.6mm. This design optimizes the cooperation size of the concave-convex cooperation between the support body 1 and the groove. The optimal distance is 0.5mm and the optimal groove depth is 0.5mm, which can ensure the tight cooperation of the support body 1 and the groove, and easy assembly.

[0032] In the technical scheme provided by the embodiment, a 3M adhesive pad is arranged between the inner edge surface of the support ring 2 and the aluminum protector 5. This design optimizes the attachment and fixation method between the inner edge surface of the support ring 2 and the aluminum protector 5. The 3M adhesive pad is used for bonding between the two, and the material properties of the 3M adhesive pad can ensure good attachment effect at normal environmental temperature of-40℃-80℃, and the implementation is easy to operate, simple to operate and low in material cost.

[0033] In the technical scheme provided by the embodiment, the width of the 3M adhesive pad is in the range of 8mm-12mm. This design optimizes the bonding width of the 3M adhesive pad, and the optimal adhesive pad width is 10mm, which ensures the tightness of the bonding.

[0034] In the technical scheme provided by the embodiment, the ventilation hole 3 on the side where the support body 1 is connected with the support ring 2 is located between the inner edge surface of the support body 1 and the outer edge surface of the support ring 2. This design optimizes the design of the ventilation hole 3 at the joint position of the support body 1 and the support ring 2. Through such a position design of the ventilation hole 3, the flatness of the inner side surface of the support body 1 on this side can be avoided from being damaged by the structure of the air hole, and the fit between the support and the outer side surface of the aluminum protector 5 can be effectively ensured.

[0035] In the technical scheme provided by the embodiment, the support body 1 includes two half-ring members that are connected with each other at the end positions, and each half-ring member is integrally connected with a half-ring-shaped support ring 2. This mechanism optimizes the overall design of the support body 1. The two half-rings are connected with each other to form a complete ring. This structure is suitable for the fixing design of the dust cover support and avoids the difficulty in installing the support body 1 in an integral ring structure and the possibility of causing scratches during the installation process.

[0036] In the technical scheme provided by the embodiment, one end of the half-ring member is provided with a socket structure 7, and the other end is provided with a plug structure 6. The two half-ring members are connected in a complete ring through the plug connection of the plug structure 6 and the socket structure 7. This design optimizes the connection mode between the two half-ring members. Both of them are designed with a plug structure 6 at one end and a socket structure 7 at the other end. The plug at one end of the half-ring member is inserted into the socket at the other end of the other half-ring member. This design is simple, convenient to install, firmly fixed, and suitable for the elastic material of the support body 1 itself.

[0037] In the technical scheme provided by the embodiment, the outer peripheral surface of the support body 1 is provided with a circular ring-shaped clamping groove structure 4 for cooperation with the clamping of the clamp structure. This design further optimizes the design of the support body 1. The outer peripheral edge of the support body 1 is provided with a ring-shaped clamping groove structure 4. The clamping groove structure 4 is recessed inward and can form a concave-convex cooperation with the clamp for fixing the support body 1. This increases the tightness of the combination between the support body 1 and the clamp and avoids the clamp from falling off after being clamped and fixed to the outer edge of the support body 1.

[0038] Although the present application discloses the above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present utility model.

Claims

1. An air spring dust cover fixing support, comprising a support body (1) in a circular ring structure, the inner circumferential surface of the support body (1) is attached to the aluminum sleeve (5) of the air spring, the outer circumferential surface of the support body (1) is attached and fixed to the inner edge surface of the air spring dust cover, and air holes (3) are arranged on both sides of the support body (1), characterized in that, The side end face of the support body (1) is provided with a support ring (2), the support ring (2) is annular and is integrally connected with the support body (1), the inner peripheral wall of the support ring (2) is in static fit with the outer peripheral wall of the aluminum casing (5), and the support ring (2) is used for supporting and fixing the aluminum casing (5) in external fit.

2. The dust cover fixing bracket of the air spring according to claim 1, characterized by, The aluminum casing (5) is provided with an annular groove structure corresponding to the position of the support body (1), the side edge of the support body (1) is sunken into the groove structure to form a concave-convex fit, and the area where the support ring (2) is in fit with the aluminum casing (5) is located outside the groove structure.

3. The dust cover fixing bracket of the air spring according to claim 2, characterized by, The inner edge face transition positions of the support body (1) and the support ring (2) are provided with a step face transition structure, and the height of the step face transition structure matches the groove depth of the groove structure.

4. The dust cover fixing bracket of the air spring according to claim 3, characterized by The spacing value between the outer side edge of the support body (1) and the inner side edge of the groove structure is 0.4mm-0.6mm, and the groove depth value of the groove structure is 0.4mm-0.6mm.

5. The dust cover securing bracket for air springs of claim 1, wherein, A 3M adhesive rubber pad is arranged between the inner edge face of the support ring (2) and the aluminum casing (5).

6. The dust cover securing bracket for air springs of claim 5, wherein, The width value of the 3M adhesive rubber pad is 8mm-12mm.

7. The dust cover securing bracket for air springs of claim 1, wherein, The air hole (3) on the side connected with the support ring (2) of the support body (1) is located between the inner edge face of the support body (1) and the outer edge face of the support ring (2).

8. The dust cover securing bracket for air springs of claim 1, wherein, The support body (1) comprises two half-ring members which are buckled at both ends, and each half-ring member is integrally connected with a half-ring-shaped support ring (2).

9. The dust cover securing bracket for air springs of claim 8, wherein, One end of the half-ring member is provided with a socket structure (7), and the other end is provided with a plug structure (6), and the two half-ring members are connected into a complete ring through the plug-in connection of the plug structure (6) and the socket structure (7).

10. The dust cover securing bracket for air springs of claim 2, wherein, The outer peripheral face of the support body (1) is provided with an annular clamping groove structure (4) for clamping and fixing the clamp structure.

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