Anti-roll air suspension system

Abstract

The utility model relates to an anti-roll air suspension system which comprises an axle, an air suspension mechanism and a bracket assembly are symmetrically arranged at two ends of the axle, the air suspension mechanism comprises a guide arm assembly, a support and an air spring, the guide arm assembly comprises a first guide arm, a fixed arm and a second guide arm, the first guide arm is rotatably connected with the support, and the fixed arm is rotatably connected with the bracket. The second guide arm is fixedly connected with an air spring, a pressing plate is arranged at the bottom of the fixing arm, a shock absorber is obliquely arranged between the pressing plate and the support, the fixing arm, the bracket assembly and the pressing plate are fixedly connected with an axle through a fixing assembly, and fasteners are arranged at the two side ends, making contact with the bracket assembly, of the fixing arm correspondingly. The fastener is used for fixing the bracket assembly and the fixing arm, and a positioning pin for positioning the fixing arm and the bracket assembly is arranged between the pressing plate and the fixing arm.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle suspension, in particular to an anti-rolling air suspension system. Background Art

[0002] In recent years, air suspension has been widely used in the automotive field due to its good comfort and stability, low impact on roads and bridges, and the ability to extend the service life of automobiles and their parts. The air suspension system in the prior art usually includes an axle, a guide arm, a bracket assembly, a support, an air spring and a pressure plate. The two ends of the guide arm are respectively connected to the bracket and the air spring, and the guide arm is connected to the bracket assembly, the axle and the pressure plate through a fixing assembly. At present, vehicles using this air suspension system will generate a large lateral force when encountering continuous turns, bumps and other road conditions, causing the guide arm to loosen, resulting in problems such as axle displacement. At the least, the parts will be damaged, and at the worst, the safety of vehicles, cargo and personnel will be affected. Utility Model Content

[0003] The utility model aims to solve the technical problem of providing an anti-rolling air suspension system, which not only solves the problem that the guide arm is easy to loosen, but also improves the anti-rolling performance.

[0004] The utility model adopts the following technical solution to solve the technical problem: an anti-roll air suspension system, comprising an axle, air suspension mechanisms and bracket assemblies are symmetrically arranged at both ends of the axle, the air suspension mechanism comprises a guide arm assembly, a bracket and an air spring, the guide arm assembly comprises a first guide arm, a fixed arm and a second guide arm, the first guide arm is rotatably connected to the bracket, the second guide arm is fixedly connected to the air spring, the bracket assembly is wound around the axle, the fixed arm is located at the lower end of the axle and the bracket assembly, a pressure plate is arranged at the bottom of the fixed arm, a shock absorber is obliquely arranged between the pressure plate and the bracket, one end of the shock absorber is hinged to the bracket, and the other end of the shock absorber is hinged to the pressure plate.

[0005] The fixed arm, the bracket assembly and the pressure plate are fixedly connected to the axle via the fixed assembly, and fasteners are respectively provided at the two side ends of the fixed arm in contact with the bracket assembly, and the fasteners are used to fix the bracket assembly and the fixed arm, and a positioning pin is provided between the pressure plate and the fixed arm for positioning the fixed arm and the bracket assembly.

[0006] The anti-roll air suspension system is provided with fasteners at the two side ends where the fixed arm contacts the bracket assembly, and the fasteners are used to tighten and fix the fixed arm and the bracket assembly, and a positioning pin is provided at the bottom of the fixed arm to position the fixed arm and the bracket assembly. The fasteners at both side ends and the positioning pin form a three-point stable structure, which ensures the overall rigidity of the air suspension system, thereby ensuring the anti-roll performance of the vehicle.

[0007] In one embodiment, the support assembly of the anti-roll air suspension system includes an upper support, a lower support and two connecting plates, the upper support is installed on the top of the axle, the lower support is installed on the bottom of the axle, the two connecting plates are respectively installed on the two side ends of the axle, and a buffer block is arranged on the upper support.

[0008] In one of the embodiments, the upper bracket, the lower bracket and the two connecting plates of the anti-roll air suspension system are welded to the top, the bottom and the two side ends of the axle respectively.

[0009] In one embodiment, the fixing assembly of the anti-roll air suspension system includes two U-shaped bolts and four first fastening nuts, and the two U-shaped bolts pass through the upper bracket, the lower bracket and the two ends of the pressure plate respectively and are connected to the first fastening nuts.

[0010] In one of the embodiments, a wear-resistant plate is provided on the fixed arm of the anti-roll air suspension system, the wear-resistant plate is wrapped around the top and bottom of the fixed arm, and the positioning pin passes through the wear-resistant plate to position the fixed arm and the lower bracket.

[0011] In one of the embodiments, the fasteners of the anti-roll air suspension system are side top bolts, and the side top bolts are threadedly connected to the lower bracket and the fixed arm respectively.

[0012] In one embodiment, two ends of the shock absorber of the anti-roll air suspension system are hinged to the pressure plate and the bracket respectively.

[0013] In one of the embodiments, a bushing is provided at the front end of the first guide arm of the anti-roll air suspension system, and a bolt assembly is provided on the bracket, and the bolt assembly is used to connect the bracket and the bushing of the first guide arm.

[0014] The beneficial effects of this application are:

[0015] The present application provides an anti-roll air suspension system, which arranges fasteners at two side ends where a fixed arm contacts a lower support seat. The fasteners at both side ends strengthen the fixing effect of the lower support seat and the fixed arm, and eliminate the gap between the lower support seat and the guide arm, thereby ensuring the guiding property of the guide arm when lateral road conditions occur.

[0016] A positioning pin is also provided at the bottom of the fixed arm to position the fixed arm and the lower bracket. The fasteners on both sides and the positioning pin form a three-point stable structure, which ensures the overall rigidity of the air suspension system, thereby ensuring the anti-roll performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of an anti-roll air suspension system according to an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of a guide arm assembly, a lower bracket, a fastener and a locating pin of an anti-roll air suspension system according to an embodiment of the present application.

[0019] in:

[0020] 1. Axle; 2. Air suspension mechanism; 21. Guide arm assembly; 211. First guide arm; 212. Fixed arm; 213. Second guide arm; 22. Bracket; 23. Air spring; 24. Pressure plate; 25. Shock absorber; 26. Fixing assembly; 261. U-bolt; 262. First fastening nut; 27. Fastener; 28. Locating pin; 29. ​​Wear-resistant plate; 3. Support assembly; 31. Upper support; 32. Lower support; 33. Connecting plate; 34. Buffer block; 100. Bushing; 101. Bolt assembly. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides an anti-roll air suspension system, including an axle 1, with air suspension mechanisms 2 and bracket assemblies 3 symmetrically arranged at both ends of the axle 1, the air suspension mechanism 2 including a guide arm assembly 21, a bracket 22 and an air spring 23, the guide arm assembly 21 including a first guide arm 211, a fixed arm 212 and a second guide arm 213, the first guide arm 211 is rotatably connected to the bracket 22, the second guide arm 213 is fixedly connected to the air spring 23, the bracket assembly 3 is wound around the axle 1, the fixed arm 212 is located at the lower end of the axle 1 and the bracket assembly 3, a pressure plate 24 is arranged at the bottom of the fixed arm 212, a shock absorber 25 is obliquely arranged between the pressure plate 24 and the bracket 22, one end of the shock absorber 25 is hinged to the bracket 22, and the other end of the shock absorber 25 is hinged to the pressure plate 24.

[0023] The fixed arm 212, the bracket assembly 3 and the pressure plate 24 are fixedly connected to the axle 1 via the fixing assembly 26. The two side ends of the fixed arm 212 in contact with the bracket assembly 3 are respectively provided with fasteners 27, and the fasteners 27 are used to fix the bracket assembly 3 and the fixed arm 212. A positioning pin 28 for positioning the fixed arm 212 and the bracket assembly 3 is provided between the pressure plate 24 and the fixed arm 212.

[0024] Specifically, the first guide arm 211 of the guide arm assembly 21 is rotatably connected to the bracket 22 through the bolt assembly 101, the upper end of the bracket 22 is welded to the frame, the upper end of the second guide arm 213 is fixedly connected to the bottom of the air spring 23, the top of the air spring 23 is connected to the frame, the bracket assembly 3 is fixedly connected to the four end faces of the axle 1 respectively, the fixed arm 212 is located at the lower end of the bracket assembly 3 and the axle 1, and the pressure plate 24 is located at the lower end of the fixed arm 212. The two U-bolts 261 of the fixing assembly 26 pass through the bracket assembly 3, the axle 1, the fixed arm 212 and the two ends of the pressure plate 24 from top to bottom, and the four components are tightly fixed together through the first fastening nut 262. The lower bracket 32 ​​of the bracket assembly 3 contacts the fixed arm 212, and the two fasteners 27 pass through the two side ends of the lower bracket 32 ​​and are fixedly connected to the fixed arm 212. A positioning pin 28 is provided between the pressing plate 24 and the fixed arm 212 , and the positioning pin 28 positions the fixed arm 212 and the lower bracket 32 ​​of the bracket assembly 3 , and the fixing assembly 26 presses the pressing plate 24 onto the positioning pin 28 and the fixed arm 212 .

[0025] In the above structure, the fasteners 27 at both ends strengthen the fixing effect of the lower support seat 32 and the fixed arm 212, eliminate the gap between the lower support seat 32 and the guide arm, and ensure the guiding performance of the guide arm when a lateral road condition occurs. The fasteners 27 at both ends and the positioning pin 28 form a three-point stable structure, which ensures the overall rigidity of the air suspension system, thereby ensuring the anti-roll performance of the vehicle.

[0026] like Figure 1 As shown, in one embodiment, the support assembly 3 of the anti-roll air suspension system includes an upper support 31, a lower support 32 and two connecting plates 33, the upper support 31 is installed on the top of the axle 1, the lower support 32 is installed on the bottom of the axle 1, the two connecting plates 33 are respectively installed on the two side ends of the axle 1, and a buffer block 34 is arranged on the upper support 31.

[0027] Specifically, the bottom of the upper support seat 31 is wrapped around the top of the axle 1, and grooves for accommodating the U-bolts 261 are provided at both ends of the top of the upper support seat 31, and a buffer block 34 is provided in the middle of the upper support seat 31. The top of the lower support seat 32 is wrapped around the bottom of the axle 1, and the bottom of the lower support seat 32 is wrapped on the fixed arm 212, and grooves for accommodating the lower part of the U-bolts 261 are provided at both ends of the lower support seat 32. Two connecting plates 33 are fixedly connected to the two side ends of the axle 1 respectively.

[0028] The above arrangement facilitates the fixing of the U-bolt 261 and also facilitates the fixing and cooperation with the fixing arm 212 .

[0029] like Figure 1As shown, in one embodiment, the upper bracket 31, the lower bracket 32 ​​and the two connecting plates 33 of the anti-roll air suspension system are welded to the top, the bottom and the two side ends of the axle 1 respectively.

[0030] Specifically, the upper support seat 31, the lower support seat 32 and the two connecting plates 33 are firmly welded to the axle 1. This arrangement is not prone to loosening or damage of the upper support seat 31, the lower support seat 32 and the two connecting plates 33 under various road conditions.

[0031] like Figure 1 As shown, in one embodiment, the fixing assembly 26 of the anti-roll air suspension system includes two U-shaped bolts 261 and four first fastening nuts 262, and the two U-shaped bolts 261 pass through the upper bracket 31, the lower bracket 32 ​​and the two ends of the pressure plate 24 and are connected to the first fastening nuts 262.

[0032] Specifically, two U-bolts 261 pass through the upper bracket 31, the lower bracket 32 ​​and the pressure plate 24 from top to bottom, and finally the two U-bolts are tightened by four second first fastening nuts 262, so that the pressure plate 24, the fixed arm 212, the bracket assembly 3 and the axle 1 are firmly fixed together.

[0033] This arrangement facilitates the fixing of the pressure plate 24, the fixing arm 212, the bracket assembly 3 and the axle 1, and they are not prone to loosening when road conditions occur.

[0034] like Figure 2 As shown, in one embodiment, a wear-resistant plate 29 is provided on the fixed arm 212 of the anti-roll air suspension system, and the wear-resistant plate 29 is wrapped around the top and bottom of the fixed arm 212. The positioning pin 28 passes through the wear-resistant plate 29 to position the fixed arm 212 and the lower bracket 32.

[0035] Specifically, the wear-resistant plate 29 is half wrapped around the fixed arm 212, the top of the wear-resistant plate 29 is located between the fixed arm 212 and the lower support seat 32, the bottom of the wear-resistant plate 29 is located between the fixed arm 212 and the pressure plate 24, and the positioning pin 28 passes through the wear-resistant plate 29, the fixed arm 212 and the lower support seat 32 to position the wear-resistant plate 29, the fixed arm 212 and the lower support seat 32.

[0036] The provision of the wear-resistant plate 29 is convenient for increasing the friction between the fixed arm 212 and the pressure plate 24 and the lower bracket 32, and improving the anti-slip coefficient of the guide arm and the axle 1 when road conditions occur.

[0037] like Figure 2 As shown, in one embodiment, the fastener 27 of the anti-roll air suspension system is a side top bolt, and the side top bolt is threadedly connected to the lower bracket 32 ​​and the fixed arm 212 respectively.

[0038] Specifically, the side top bolts are respectively connected to the lower support seat 32 and the fixed arm 212 by threads. This arrangement can eliminate the gap between the lower support seat 32 and the fixed arm 212 of the guide arm, and the guiding property of the guide arm can be maintained when road conditions occur.

[0039] like Figure 1 As shown, in one embodiment, the two ends of the shock absorber 25 of the anti-roll air suspension system are respectively hinged to the pressure plate 24 and the bracket 22. Rubber bushings 100 are respectively provided at the two ends of the shock absorber 25, so that there is a certain displacement when the shock absorber 25 rotates with the pressure plate 24 and the bracket 22. This arrangement facilitates the shock absorption effect on the vehicle.

[0040] like Figure 1 As shown, in one embodiment, a bushing 100 is provided at the front end of the first guide arm 211 of the anti-roll air suspension system, and a bolt assembly 101 is provided on the bracket 22, and the bolt assembly 101 is used to connect the bracket 22 and the bushing 100 of the first guide arm 211.

[0041] Specifically, the bolt assembly 101 includes a bolt and a second fastening nut. A rubber bushing 100 is arranged in the ring ear at the front end of the first guide arm 211, and the ring ear is located in the bracket 22. The bolt of the bolt assembly 101 passes through the bracket 22 and the ring ear, and finally the bolt is fixed to the bracket 22 by the second fastening nut. The ring ear at the front end of the first guide arm 211 can rotate around the bolt, and the rubber bushing 100 can resist the displacement of the ring ear during rotation, playing a buffering role.

[0042] This arrangement facilitates the rotational connection between the first guide arm 211 and the bracket 22 .

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An anti-roll air suspension system, characterized in that: The invention comprises an axle (1), wherein two ends of the axle (1) are symmetrically provided with an air suspension mechanism (2) and a bracket assembly (3), the air suspension mechanism (2) comprises a guide arm assembly (21), a bracket (22) and an air spring (23), the guide arm assembly (21) comprises a first guide arm (211), a fixed arm (212) and a second guide arm (213), the first guide arm (211) is rotatably connected to the bracket (22), the second guide arm (213) is fixedly connected to the air spring (23), the bracket assembly (3) is wound around the axle (1), the fixed arm (212) is located at the lower ends of the axle (1) and the bracket assembly (3), A pressing plate (24) is provided at the bottom of the fixed arm (212), a shock absorber (25) is obliquely provided between the pressing plate (24) and the bracket (22), one end of the shock absorber (25) is hinged to the bracket (22), and the other end of the shock absorber (25) is hinged to the pressing plate (24). The fixed arm (212), the bracket assembly (3) and the pressure plate (24) are fixedly connected to the axle (1) via a fixed assembly (26); two side ends of the fixed arm (212) in contact with the bracket assembly (3) are respectively provided with fasteners (27); the fasteners (27) are used to fix the bracket assembly (3) and the fixed arm (212); and a positioning pin (28) is provided between the pressure plate (24) and the fixed arm (212) for positioning the fixed arm (212) and the bracket assembly (3).

2. The anti-roll air suspension system according to claim 1, characterized in that: The support seat assembly (3) comprises an upper support seat (31), a lower support seat (32) and two connecting plates (33); the upper support seat (31) is mounted on the top of the axle (1); the lower support seat (32) is mounted on the bottom of the axle (1); the two connecting plates (33) are respectively mounted on two side ends of the axle (1); and a buffer block (34) is arranged on the upper support seat (31).

3. The anti-roll air suspension system according to claim 2, characterized in that: The upper supporting seat (31), the lower supporting seat (32) and the two connecting plates (33) are respectively welded to the top, the bottom and the two side ends of the axle (1).

4. The anti-roll air suspension system according to claim 2, characterized in that: The fixing assembly (26) comprises two U-shaped bolts (261) and four first fastening nuts (262), and the two U-shaped bolts (261) respectively pass through the upper bracket (31), the lower bracket (32) and the two ends of the pressure plate (24) to be connected to the first fastening nuts (262).

5. The anti-roll air suspension system according to claim 2, characterized in that: The fixed arm (212) is provided with a wear-resistant plate (29), which wraps around the top and bottom of the fixed arm (212), and the positioning pin (28) passes through the wear-resistant plate (29) to position the fixed arm (212) and the lower bracket (32).

6. The anti-roll air suspension system according to claim 2, characterized in that: The fastener (27) is a side top bolt, which is threadedly connected to the lower bracket (32) and the fixed arm (212) respectively.

7. The anti-roll air suspension system according to claim 1, characterized in that: The two ends of the shock absorber (25) are respectively hinged to the pressing plate (24) and the bracket (22).

8. The anti-roll air suspension system according to claim 1, characterized in that: A bushing (100) is provided at the front end of the first guide arm (211), and a bolt assembly (101) is provided on the bracket (22). The bolt assembly (101) is used to connect the bracket (22) and the bushing (100) of the first guide arm (211).

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