Air suspension with shock absorbers arranged below spring arms

Abstract

The utility model discloses an air suspension with a shock absorber arranged below a spring arm. The air suspension comprises a lifting lug support, the end part of the spring arm is inserted into the inner side of the lifting lug bracket in a penetrating manner, a first mounting fulcrum is arranged at the end part of the spring arm, and the spring arm is connected with the lifting lug bracket through the first mounting fulcrum; mounting the device; the shaft tube is arranged below the spring arm, and the shaft tube is connected with the spring arm through a mounting device; and the shock absorber is mounted between the lifting lug bracket and the mounting device. The arrangement mode that the spring arms and the shock absorbers are matched is utilized, a triangular supporting structure among the lifting lug support, the spring arms and the shock absorbers is embodied, the triangular supporting structure can effectively disperse force acting on the shock absorbers and the spring arms, local stress concentration is reduced, and therefore abrasion and the fault occurrence rate are reduced, and the service life of the lifting lug support is prolonged. According to the design, the reliability of the suspension system is improved, the service life is prolonged, the frequency of maintenance and replacement is reduced, and the use cost of a user is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of air suspension, especially relates to an air suspension with shock absorber placed below spring arm. BACKGROUND

[0002] In the existing air suspension system, the traditional layout is usually adopted, wherein the arrangement mode of the hanger bracket, spring arm and shock absorber often fails to fully consider the optimization of structure and the transmission efficiency of force, for example, the shock absorber, spring arm and hanger bracket are arranged in the traditional linear structure, which has the following problems in actual application:

[0003] Unreasonable gravity layout: in the traditional structure, the installation position of the shock absorber is often parallel to or higher than the spring arm, which fails to effectively reduce the gravity, resulting in insufficient stability of the vehicle during driving and affecting the control performance and ride comfort.

[0004] Insufficient combination of shock absorber and spring arm: in the existing design, the arrangement mode of the upper and lower shock absorbers fails to present reasonable inclined support, resulting in insufficient support of the shock absorber on the spring arm, thereby limiting the lightweight design of the spring arm and affecting the performance of the overall suspension system.

[0005] Weight and reliability problems: due to the failure of the spring arm to fully utilize the support of the shock absorber, additional materials and structures are often needed to ensure the strength and stability, resulting in increased overall weight and inability to realize lightweight design, which affects the fuel efficiency and control performance of the vehicle. In addition, the traditional design is prone to failure during use, which reduces the reliability and service life of the system. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an air suspension with shock absorber placed below spring arm to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an air suspension with shock absorber placed below spring arm, comprising:

[0008] A hanger bracket is used to connect the suspension system and the vehicle body.

[0009] A spring arm is hingedly connected to the hanger bracket at one end through a first mounting fulcrum.

[0010] An installation device is fixed on the spring arm to provide a support connection position.

[0011] A shaft tube is arranged below the spring arm and connected to the spring arm through the installation device.

[0012] At least one shock absorber is arranged between the lug bracket and the mounting device in an inclined manner and forms a triangular support structure with the spring arm.

[0013] The triangular support structure is used to disperse the force of the spring arm and the shock absorber and reduce local stress concentration.

[0014] Preferably, the mounting device comprises:

[0015] A cover plate is arranged on the top of the spring arm.

[0016] A mounting bracket is arranged on the bottom of the spring arm.

[0017] A U-shaped bolt is wrapped outside the spring arm and the shaft tube, and the end of the U-shaped bolt is locked and fixed by a nut by penetrating the mounting bracket and the cover plate.

[0018] A connecting bracket is arranged on one side of the cover plate and the mounting bracket, respectively.

[0019] Preferably, one end of the shock absorber is provided with a second mounting fulcrum, the shock absorber is connected with the lug bracket through the second mounting fulcrum, and the other end of the shock absorber is provided with a third mounting fulcrum, and the third mounting fulcrum is connected with the connecting bracket.

[0020] Preferably, the lug bracket is arranged in a U-shaped manner.

[0021] Preferably, the upper end mounting position of the shock absorber is lower than the hinge center of the spring arm, so as to reduce the overall gravity center of the suspension system.

[0022] Preferably, the position of the shaft tube is lower than the lug bracket, so that the inclination angle of the shock absorber is 15°-60°.

[0023] Preferably, when two shock absorbers are used, the right-angled triangle structure is used to uniformly distribute the impact force from the road, so as to realize the anti-roll support of the suspension system.

[0024] The technical effects and advantages of the utility model are as follows:

[0025] (1) The utility model discloses a spring arm and shock absorber cooperate with each other, in embodiment 1, the installation position of the upper end of shock absorber is designed to be lower than spring arm, the design of the upper end of shock absorber is lower than spring arm can effectively reduce the gravity center of overall suspension system, and the utilization of space is optimized. This design not only helps the low gravity center layout of vehicle, but also can provide more flexibility for the configuration of other components, cooperate with the setting mode of the upper and lower two shock absorbers in embodiment 2, the spring arm is supported effectively, the working efficiency of shock absorber is improved significantly, so that shock absorber can better absorb and attenuate road impact in the working process, effectively improve the shock absorption effect, and the two kinds of implementation modes, all embody the triangular support structure between the lug support, spring arm and shock absorber, the triangular support structure can effectively disperse the force acting on shock absorber and spring arm, reduce local stress concentration, thereby reducing the abrasion and failure rate, the reliability of suspension system is improved, the service life is prolonged, the frequency of maintenance and replacement is reduced, and the use cost of user is reduced;

[0026] (2) The utility model discloses a spring arm and shock absorber cooperate with each other, benefit from the inclined support of shock absorber, the design of spring arm can be more lightweight, and the use of material is reduced. This lightweight design not only reduces the overall weight of suspension system, but also improves the fuel efficiency and handling performance of vehicle, further optimizes the performance index of whole vehicle;

[0027] (3) The utility model discloses a mounting device and shock absorber cooperate with each other, the mounting device is vertically bound and installed to the relative position between spring arm and shaft pipe, which is convenient for providing fulcrum for the installation of shock absorber, so that shock absorber can be supported in an inclined state, the burden of shock absorber is evenly distributed, and local stress concentration is reduced. ACCURACY OF DRAWINGS

[0028] Figure 1 It is one of the front structure schematic drawings of the utility model.

[0029] Figure 2 It is the second front structure schematic drawing of the utility model.

[0030] Figure 3 It is the overall structure schematic drawing of the utility model.

[0031] Figure 4 It is the overhead structure schematic drawing of the utility model.

[0032] In the drawing: 1, lug support;2, spring arm;21, first mounting fulcrum;3, mounting device;31, cover plate;32, mounting frame;33, U-shaped bolt;34, connecting frame;4, shaft pipe;5, shock absorber;51, second mounting fulcrum;52, third mounting fulcrum. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] This utility model provides, for example Figures 1-4 An air suspension with a shock absorber positioned below a spring arm, as shown, includes: a hanger bracket 1, which is arranged in a Z-shape; a spring arm 2, the end of which is inserted into the inner side of the hanger bracket 1, and the end of the spring arm 2 is provided with a first mounting point 21, through which the spring arm 2 is connected to the hanger bracket 1; a mounting device 3, which is mounted on the spring arm 2; a shaft tube 4, which is located below the spring arm 2 and is connected to the spring arm 2 through the mounting device 3; and a shock absorber 5, which is installed between the hanger bracket 1 and the mounting device 3, and is inclinedly supported between the hanger bracket 1 and the spring arm 2 to form a triangular support, so that the shock absorber 5 can effectively absorb shocks. The spring arm 2 provides support, significantly improving the working efficiency of the shock absorber 5. This allows the shock absorber 5 to better absorb and dampen road impacts during operation, effectively improving the shock absorption effect. Both implementations feature a triangular support structure between the hanger bracket 1, the spring arm 2, and the shock absorber 5. This triangular support structure effectively disperses the forces acting on the shock absorber 5 and the spring arm 2, reducing local stress concentration and thus lowering wear and failure rates. This design improves the reliability of the suspension system, extends its service life, reduces the frequency of maintenance and replacement, and lowers user costs. Thanks to the tilting support of the shock absorber 5, the spring arm 2 can be designed to be lighter, reducing material usage. This lightweight design not only reduces the overall weight of the suspension system but also improves vehicle fuel efficiency and handling performance, further optimizing the overall vehicle performance indicators. The mounting device 3 enables vertical binding of the relative positions of the spring arm 2 and the axle tube 4, providing a fulcrum for the installation of the shock absorber 5. This allows the shock absorber 5 to be supported in a tilted state, distributing the load evenly and reducing local stress concentration.

[0035] Further, the mounting device 3 comprises a cover plate 31 arranged on the top of the spring arm 2, a mounting bracket 32 arranged on the bottom of the spring arm 2, a U-shaped bolt 33 wrapped outside the spring arm 2 and the shaft tube 4, and the end of the U-shaped bolt 33 penetrates the mounting bracket 32 and the cover plate 31 and is locked and fixed by a nut, and a connecting bracket 34 is arranged on one side of the cover plate 31 and the mounting bracket 32 respectively, the mounting bracket 32 is arranged in a Z shape, and the cover plate 31 and the mounting bracket 32 provide installation space for the installation of the connecting bracket 34, and the U-shaped bolt 33 is inserted between the cover plate 31 and the mounting bracket 32, which facilitates the installation and fixation of the relative position between the spring arm 2 and the shaft tube 4, and since the shaft tube 4 is arranged below the spring arm 2, the position of the shaft tube 4 is lower than that of the lifting lug bracket 1, which facilitates the installation of the shock absorber 5 in an inclined state between the lifting lug bracket 1 and the mounting device 3.

[0036] Among them, one end of the shock absorber 5 is provided with a second mounting fulcrum 51, the shock absorber 5 is connected with the lifting lug bracket 1 through the second mounting fulcrum 51, and the other end of the shock absorber 5 is provided with a third mounting fulcrum 52, and the third mounting fulcrum 52 is connected with the connecting bracket 34.

[0037] Embodiment 1

[0038] Among them, the shock absorber 5 is located below the spring arm 2, and the installation position of the upper end of the shock absorber 5 is designed to be lower than the spring arm 2, and the design that the upper end position of the shock absorber 5 is lower than the spring arm 2 can effectively reduce the gravity center of the whole suspension system and optimize the use of space. This design not only helps the low gravity center layout of the vehicle, but also provides more flexibility for the configuration of other components, and the position of the shaft tube 4 is lower than that of the lifting lug bracket 1, so that the inclination angle of the shock absorber 5 is 15°-60°.

[0039] Embodiment 2

[0040] Two shock absorbers 5 are arranged above and below the spring arm 2 respectively, and the two shock absorbers 5 are inclinedly supported at the center of the spring arm 2, so that the lug support 1, the mounting device 3, the spring arm 2 and the shock absorber 5 form two upside-down triangles, the two shock absorbers 5 are inclinedly supported at the center of the spring arm 2 to form the upside-down triangle structure, so that the shock absorber 5 can evenly share the vibration and impact force from the road, the working angle of the shock absorber 5 is optimized, the shock absorption efficiency is significantly improved, the riding comfort and the control stability of the vehicle are improved, the upside-down triangle structure optimizes the mechanical distribution between the shock absorber 5 and the spring arm 2, so that the suspension system can more efficiently absorb and buffer the vibration and impact from the road, the shock absorption effect is significantly improved, the riding comfort and the driving stability of the vehicle are further improved, and the upside-down triangle structure significantly enhances the anti-roll ability of the suspension system, which can provide better support when the vehicle turns or changes lanes, effectively improves the driving safety and the control performance of the vehicle.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An air suspension with a shock absorber placed below a spring arm, characterized in that, The application relates to a suspension system, comprising: a hanger bracket (1) for connecting a suspension system with a vehicle body; a spring arm (2) hinged at one end to the hanger bracket (1) through a first mounting fulcrum (21); a mounting device (3) fixed to the spring arm (2) for providing a support connection position; a shaft tube (4) arranged below the spring arm (2) and connected to the spring arm (2) through the mounting device (3); at least one shock absorber (5) arranged obliquely between the hanger bracket (1) and the mounting device (3) and forming a triangular support structure with the spring arm (2); wherein the triangular support structure is used for dispersing the stress of the spring arm (2) and the shock absorber (5) and reducing local stress concentration.

2. An air suspension according to claim 1, wherein, The mounting device (3) comprises: a cover plate (31) arranged on the top of the spring arm (2); a mounting frame (32) arranged on the bottom of the spring arm (2); a U-shaped bolt (33) wrapped outside the spring arm (2) and the shaft tube (4), and the end of the U-shaped bolt (33) penetrates through the mounting frame (32) and the cover plate (31) and is locked and fixed through a nut; a connecting frame (34) mounted on one side of the cover plate (31) and the mounting frame (32) respectively.

3. An air suspension according to claim 2, wherein, One end of the shock absorber (5) is provided with a second mounting fulcrum (51), the shock absorber (5) is connected to the hanger bracket (1) through the second mounting fulcrum (51), and the other end of the shock absorber (5) is provided with a third mounting fulcrum (52) connected to the connecting frame (34).

4. The air suspension of claim 1, wherein the shock absorber is positioned below the spring arm. The hanger bracket (1) is arranged in a U-shaped manner.

5. The air suspension of claim 1, wherein the shock absorber is positioned below the spring arm. The upper end mounting position of the shock absorber (5) is lower than the hinged center of the spring arm (2), so as to reduce the overall gravity center of the suspension system.

6. An air suspension according to claim 5, wherein, The position of the shaft tube (4) is lower than the hanger bracket (1), so that the inclination angle of the shock absorber (5) is 15-60 degrees.

7. The air suspension of claim 1, wherein the shock absorber is positioned below the spring arm. When two shock absorbers (5) are adopted, the right-angled triangle structure is used for uniformly distributing the impact force from the road surface, so as to realize the anti-roll support of the suspension system.

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