Air suspension connected with axle through multiple U-shaped bolts

Abstract

The air suspension comprises a guide arm, an air bag and a shock absorber, the guide arm is in a Z-shaped strip shape, a lifting lug support is installed at one end of the guide arm, the other end of the guide arm is bent downwards to form an air bag base used for installing the air bag, and the axle is fixedly installed in the middle of the guide arm through a pressing plate, a supporting plate and the U-shaped bolts which are matched with each other. According to the guide arm assembly, the situation that the guide arm is connected with the axle through the welding technology is avoided, the four U-shaped bolts are adopted for connection and positioning, and the driving risk is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air suspension for trucks, and in particular to a method of

[0002] An air suspension connected by multiple U-bolts, especially an air suspension for a semi-trailer. Background Art

[0003] The function of the vehicle suspension shock absorber is to reduce the vibration caused by poor road conditions and enhance the adhesion between the vehicle and the ground when the vehicle makes a sharp turn or brakes suddenly. The air suspension shock absorber has the advantages of low stiffness, nonlinear and adjustable stiffness, adjustable air suspension height, light weight and low noise. It is increasingly widely used in various vehicles, especially high-end buses and precision trucks. At the same time, the application of air suspension in luxury off-road vehicles is also increasing rapidly. In some special vehicles, such as instrument vehicles with high shockproof requirements, special military vehicles and container transport vehicles with adjustable height, air suspension is almost the only choice. The guide arm of the general air suspension is fastened to the axle by welding or two bow clamps, which will mostly cause many faults such as axle displacement, loosening, and desoldering, and affect the risk of driving safety. Summary of the invention

[0004] The technical problem to be solved by the utility model is to solve the above-mentioned problems.

[0005] Air suspension connected by multiple U-bolts.

[0006] The embodiment of the present application is implemented as follows:

[0007] The present application provides an air suspension connected to an axle by a plurality of U-bolts, characterized in that it comprises a guide arm, an airbag and a shock absorber, wherein the guide arm is in a Z-shaped strip, one end of which is provided with a hanging ear bracket, and the other end is bent downward to form an airbag base for installing the airbag.

[0008] The middle part of the guide arm is fixedly mounted on the axle through a correspondingly configured pressing plate, a supporting plate and a U-shaped bolt, and the two end heads of the shock absorber are respectively connected and mounted with the hanging ear bracket and the pressing plate.

[0009] In some optional embodiments, the horizontal projection of the central axis of the shock absorber coincides with the central axis of the guide arm.

[0010] In some optional implementation schemes, the number of the U-shaped bolts is greater than two, and the pressure plate and the support plate are provided with corresponding connecting screw holes, which are symmetrically arranged on the left and right.

[0011] In some optional embodiments, a mounting support is provided on the pressure plate at a central position corresponding to one side of the ear bracket, and one end of the shock absorber is connected to the mounting support.

[0012] In some optional embodiments, the bottom surface of the support plate is a concave structure that matches the outer profile of the axle, and the support plate and the U-shaped bolt form a mounting ring cavity for the axle.

[0013] In some optional embodiments, a plurality of positioning protrusions are provided on the top surface of the support plate, and a positioning groove corresponding to the positioning protrusions is provided on the middle bottom surface of the guide arm.

[0014] In some optional embodiments, a bushing hole is provided at one end of the guide arm and is connected to the lifting ear bracket by bolts.

[0015] In some optional embodiments, the top and bottom of the airbag are respectively provided with a mounting top plate and a mounting bottom plate, and are connected to the vehicle frame via the mounting top plate, and are connected to the guide arm via the mounting bottom plate.

[0016] In some optional embodiments, an airbag safety rope is connected between the airbag top plate and the airbag bottom plate.

[0017] The beneficial effects of the present application are as follows: the present application provides an air suspension that is connected to the axle by multiple U-bolts, which connects and fixes the axle and the guide arm by multiple U-bolts, thereby improving the reliability of the connection and avoiding the use of welding. The small number of U-bolts and overload will cause early fatigue and breakage, thereby preventing desoldering and axle shifting failures and reducing driving risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A front view of an air suspension according to an embodiment of the present application;

[0020] Figure 2 A top view of an air suspension according to an embodiment of the present application;

[0021] Figure 3 An exploded view of an air suspension according to an embodiment of the present application;

[0022] Figure 4This is a top view of the guide arm of an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0031] like Figure 1-Figure 3 As shown, the utility model proposes an air suspension connected to the axle by multiple U-shaped bolts, including a guide arm 1, an air bag 2 and a shock absorber 3. The guide arm is in a Z-shaped strip, one end of which is equipped with a hanging ear bracket 4, and the other end is bent downward to form an air bag base 5 for installing the air bag. The middle part of the guide arm is connected to the axle by a corresponding pressure plate 6, a support plate 7 and a U-shaped bolt.

[0032] The bolt 8 is used to fix the axle 9, and the two ends of the shock absorber are connected and installed with the hanging ear bracket and the pressure plate respectively.

[0033] The horizontal projection of the center axis of the shock absorber coincides with the center axis of the guide arm.

[0034] Example 1

[0035] There are multiple U-shaped bolts, and multiple specifically refers to more than two. The pressure plate and the support plate are provided with corresponding connecting screw holes, which are symmetrically arranged on the left and right. Preferably, based on considerations of installation stability and installation space, four U-shaped bolts are symmetrically arranged in groups of two on both sides of the guide arm to improve the connection reliability between the guide arm and the axle. At the same time, avoid welding installation to prevent desoldering and axle shifting.

[0036] A mounting support 10 is provided on the pressing plate at a central position corresponding to one side of the lifting ear bracket, and one end of the shock absorber is connected to the mounting support.

[0037] The bottom surface of the support plate is a concave structure, which is compatible with the outer contour of the axle. The support plate and the U-bolt form a mounting ring cavity for the axle, which can limit the axle and improve the installation stability.

[0038] A positioning protrusion 11 is provided on the top surface of the support plate, and a positioning groove 12 corresponding to the positioning protrusion is provided on the bottom surface of the middle part of the guide arm (see Figure 4 ), improve the connection stability.

[0039] One end of the guide arm is provided with a bushing hole, which is connected to the lifting ear bracket by bolts.

[0040] A mounting top plate 13 and a mounting bottom plate 14 are respectively arranged on the top and bottom of the airbag, which are connected to the vehicle frame via the mounting top plate and connected to the guide arm via the mounting bottom plate.

[0041] An airbag safety rope 15 is connected between the airbag top plate and the airbag bottom plate to limit the position of the airbag.

[0042] The guide arm is provided with a bushing hole 16, which is connected to the suspension lug through a lug bolt.

[0043] The above is only a preferred embodiment of the present intellectual achievement, but the present intellectual achievement should not be limited to the contents disclosed in the embodiment and the drawings. All equivalents or modifications completed without departing from the spirit disclosed in the present utility model shall fall within the scope of protection of the present utility model.

Claims

1. An air suspension connected to an axle by multiple U-bolts, characterized in that: It includes a guide arm, an airbag and a shock absorber. The guide arm is in a Z-shaped strip, one end of which is equipped with a lifting ear bracket, and the other end is bent downward to form an airbag base for installing the airbag. The middle part of the guide arm is fixed to the axle through a corresponding pressure plate, a support plate and a U-shaped bolt. The two end heads of the shock absorber are respectively connected and installed with the lifting ear bracket and the pressure plate.

2. An air suspension connected to the axle by multiple U-bolts as claimed in claim 1, characterized in that The horizontal projection of the central axis of the shock absorber coincides with the central axis of the guide arm.

3. The air suspension according to claim 2, wherein the air suspension is connected to the axle by a plurality of U-bolts. The number of the U-shaped bolts is greater than two, and the pressing plate and the supporting plate are provided with corresponding connecting screw holes, which are arranged symmetrically on the left and right.

4. An air suspension connected to the axle by multiple U-bolts as claimed in claim 2 or 3, characterized in that A mounting support is provided on the pressing plate at a central position corresponding to one side of the hanging ear bracket, and one end of the shock absorber is connected to the mounting support.

5. The air suspension according to claim 4, wherein the air suspension is connected to the axle by a plurality of U-bolts. The bottom surface of the support plate is a concave structure, which is matched with the outer profile of the axle, and the support plate and the U-shaped bolt form a mounting ring cavity of the axle.

6. The air suspension according to claim 5, wherein the air suspension is connected to the axle by a plurality of U-bolts. A plurality of positioning protrusions are arranged on the top surface of the support plate, and a positioning groove corresponding to the positioning protrusions is arranged on the middle bottom surface of the guide arm.

7. An air suspension connected to the axle by multiple U-bolts as claimed in claim 1 or 6, characterized in that One end of the guide arm is provided with a bushing hole, which is connected to the lifting ear bracket by bolts.

8. An air suspension connected to the axle by multiple U-bolts as claimed in claim 1 or 6, characterized in that The top and bottom of the airbag are respectively provided with a mounting top plate and a mounting bottom plate, which are connected to the vehicle frame via the mounting top plate and connected to the guide arm via the mounting bottom plate.

9. An air suspension connected to the axle by multiple U-bolts as claimed in claim 8, characterized in that An airbag safety rope is connected between the airbag top plate and the airbag bottom plate.

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