Multi-axle vehicle hydrogas balance suspension

Abstract

The utility model discloses a kind of multi-axle vehicle oil-gas balance suspension, belong to balance suspension technical field, including suspension main body, suspension main body is equipped with mounting seat, and mounting seat is equipped with oil-gas spring main body, oil-gas spring main body is composed of oil storage cylinder and gas cylinder. Sealing assembly is used, the special-shaped groove with trapezoidal section is arranged on the plug-in lining and the limiting protrusion, cooperate sealing gasket is used, when oil storage cylinder and gas cylinder are connected and assembled, sealing gasket is extruded and deformed, can better adhere to the inner wall of special-shaped groove, ensure sealing effect, through the heat dissipation component set, heat dissipation fin is used with heat conduction sleeve to heat dissipation, the heat of oil storage cylinder and gas cylinder can be quickly dissipated, the service life of entire oil-gas spring is extended to a certain extent, first heat conduction sleeve and second heat conduction sleeve are used, cooperate connecting bolt is used, the disassembly and assembly of heat dissipation component can be quickly completed, simultaneously, the normal injection and discharge of oil and high-pressure gas are not affected.

Description

Technical Field

[0001] This utility model relates to the field of balanced suspension technology, and in particular to an oil-gas balanced suspension for multi-axle vehicles. Background Technology

[0002] The hydro-gas balance suspension is an advanced suspension system that uses hydro-gas spring technology and is designed in accordance with the principle of balance suspension. Its core is to use inert gas (such as nitrogen) as an elastic medium and hydraulic oil as a force transmission medium to balance multi-axle loads through mechanical or hydraulic means, so as to achieve stable driving and height adjustment of the vehicle under complex working conditions.

[0003] In existing hydropneumatic suspension systems, during operation, the hydraulic fluid in the hydropneumatic spring moves within the oil reservoir, driving the floating piston. This, combined with the high-pressure gas in the air chamber, creates a spring effect, achieving a buffering and balancing function. However, in hydropneumatic springs, the oil reservoir and the cylinder containing the air chamber are fixed together using a connecting flange and sealed with a sealing ring. However, the sealing ring uses an annular groove at the mating point for sealing. This conventionally designed annular groove results in poor contact between the sealing ring and the sidewall of the groove after compression, easily leading to a deterioration in sealing performance over time, thus affecting the overall performance. Furthermore, the movement of the hydraulic fluid and gas during operation generates heat, which is rapidly dissipated, impacting the lifespan of the suspension. Utility Model Content

[0004] The main objective of this invention is to provide a multi-axle vehicle oil-gas balance suspension that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-axle vehicle hydropneumatic balance suspension includes a suspension body, a mounting seat on the suspension body, and a hydropneumatic spring body on the mounting seat. The hydropneumatic spring body consists of an oil reservoir and an air reservoir. The oil reservoir has an oil chamber inside and a piston rod connected to the oil reservoir. The air reservoir has an air chamber inside. A sealing component is provided at the connection between the oil reservoir and the air reservoir. A heat dissipation component is provided on the outside of the oil reservoir and the air reservoir.

[0007] Preferably, a connecting flange is provided at the connection between the oil storage cylinder and the air storage cylinder, and a floating piston is provided in the air chamber of the air storage cylinder.

[0008] Preferably, a damping valve is fixed on the oil storage cylinder, and the damping valve is provided with a damping orifice.

[0009] Preferably, the lower end of the piston rod is provided with a first connecting seat, and the first connecting seat is rotatably connected to the mounting seat, and the upper end of the gas storage cylinder is provided with a second connecting seat.

[0010] Preferably, the oil storage cylinder is provided with an oil inlet and an oil outlet, and the air storage cylinder is provided with an air inlet and an air outlet.

[0011] Preferably, the sealing assembly includes an insert liner, a limiting protrusion, a shaped groove, and a sealing gasket. The insert liner is fixed to the end of the oil reservoir and inserted into the air reservoir. The limiting protrusion is fixed inside the air reservoir. The two shaped grooves are respectively formed on the insert liner and the limiting protrusion. The sealing gasket is embedded in the shaped groove.

[0012] Preferably, the heat dissipation assembly includes a first heat-conducting sleeve, a second heat-conducting sleeve, heat dissipation fins, a connecting plate, and a connecting bolt. The heat dissipation fins are disposed on the first heat-conducting sleeve and the second heat-conducting sleeve. The connecting plate is installed at the end position of the first heat-conducting sleeve and the second heat-conducting sleeve, and the connecting plate is provided with a round hole. The connecting bolt passes through the round hole, and the end of the connecting bolt is provided with a nut.

[0013] Compared with the prior art, this utility model has the following beneficial effects: The multi-axle vehicle oil-air balance suspension adopts a sealing component, and a trapezoidal groove is set on the insert liner and the limiting protrusion, which is used in conjunction with the sealing gasket. When the oil cylinder and the air cylinder are connected and assembled, the sealing gasket is squeezed and deformed, which can better fit the inner wall of the groove and ensure the sealing effect. Through the heat dissipation component, the heat dissipation is carried out by the heat conducting sleeve and the heat dissipation fins, which can quickly dissipate the heat of the oil cylinder and the air cylinder, and extend the service life of the entire oil-air spring to a certain extent. The use of the first heat conducting sleeve and the second heat conducting sleeve, together with the connecting bolts, allows for quick disassembly and assembly of the heat dissipation component, without affecting the normal injection and discharge of oil and high-pressure gas. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the oil reservoir of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the main body of the gas spring of this utility model;

[0017] Figure 4 This is a schematic diagram of the sealing assembly of this utility model;

[0018] Figure 5 This is a schematic diagram of the heat dissipation component of this utility model.

[0019] In the diagram: 1. Suspension body; 2. Mounting seat; 3. Oil reservoir; 4. Air reservoir; 5. Oil chamber; 6. Piston rod; 7. Air chamber; 8. Connecting flange; 9. Sealing assembly; 901. Insert liner; 902. Limiting protrusion; 903. Irregular groove; 904. Sealing gasket; 10. Floating piston; 11. First connecting seat; 12. Second connecting seat; 13. Oil inlet; 14. Oil outlet; 15. Heat dissipation assembly; 1501. First heat conduction sleeve; 1502. Second heat conduction sleeve; 1503. Heat dissipation fins; 1504. Connecting plate; 1505. Connecting bolt; 16. Air inlet; 17. Air outlet. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-5 As shown, a multi-axle vehicle hydropneumatic balance suspension includes a suspension body 1, a mounting seat 2 on the suspension body 1, and a hydropneumatic spring body on the mounting seat 2. The hydropneumatic spring body is composed of an oil reservoir 3 and an air reservoir 4. The oil reservoir 3 has an oil chamber 5 inside and a piston rod 6 connected to the oil reservoir 3. The air reservoir 4 has an air chamber 7 inside. A sealing component 9 is provided at the connection between the oil reservoir 3 and the air reservoir 4. A heat dissipation component 15 is provided on the outside of the oil reservoir 3 and the air reservoir 4.

[0022] A connecting flange 8 is provided at the connection between the oil reservoir 3 and the air reservoir 4, and a floating piston 10 is provided in the air chamber 7 of the air reservoir 4. A damping valve is fixed on the oil reservoir 3, and the damping valve is provided with a damping orifice. The lower end of the piston rod 6 is provided with a first connecting seat 11, and the first connecting seat 11 is rotatably connected to the mounting seat 2. The upper end of the air reservoir 4 is provided with a second connecting seat 12. The oil reservoir 3 is provided with an oil inlet 13 and an oil outlet 14, and the air reservoir 4 is provided with an air inlet 16 and an air outlet 17.

[0023] When using the hydropneumatic balance suspension, the wheels are mounted on the suspension body 1. The first connecting seat 11 of the entire hydropneumatic spring is set on the mounting seat 2, and the second connecting seat 12 is connected to the vehicle frame. An appropriate amount of oil is injected into the oil reservoir 3 through the oil inlet 13, and high-pressure nitrogen is injected into the air reservoir 4 through the air inlet 16. Then, the corresponding holes are sealed using a plug. During use, when the car is driving on an uneven road surface, the wheels move upward when passing over a bump, thereby moving the piston rod 6 upward. The oil in the oil chamber 5 is compressed and forced to enter the air chamber 7 through the damping valve. Under the action of the oil, the floating piston 10 in the air chamber 7 moves upward and compresses the high-pressure nitrogen to store energy. When the ground is level, the compressed nitrogen expands and applies force, pushing the floating piston 10 to reset. Thus, the oil pushes the piston rod 6 to reset relative to the ground, thereby forming a spring effect for buffering. During the entire buffering process, the movement of the oil and the compression of the gas will generate heat. The heat is discharged through the heat dissipation component 15, ensuring the long-term use of the hydropneumatic spring. When needed, oil can be discharged through oil outlet 14 and high-pressure nitrogen can be discharged through air outlet 17, which facilitates maintenance work.

[0024] According to the above implementation scheme, the sealing component 9 includes an insert liner 901, a limiting protrusion 902, a shaped groove 903, and a sealing gasket 904. The insert liner 901 is fixed to the end of the oil reservoir 3 and is inserted into the air reservoir 4. The limiting protrusion 902 is fixed inside the air reservoir 4. Two shaped grooves 903 are respectively opened on the insert liner 901 and the limiting protrusion 902. The sealing gasket 904 is embedded in the shaped groove 903.

[0025] When assembling the oil reservoir 3 and the air reservoir 4, the sealing gasket 904 is placed in the irregular groove 903 on the insert liner 901. After the air reservoir 4 is installed on the oil reservoir 3, the insert liner 901 is connected inside the air reservoir 4 and contacts the limiting protrusion 902. At this time, the upper part of the sealing gasket 904 is located in the irregular groove 903 on the limiting protrusion 902. At the same time, the sealing gasket 904 is squeezed and undergoes elastic deformation, thereby conforming to the inner wall of the irregular groove 903, which can increase the sealing effect.

[0026] According to the above implementation scheme, the heat dissipation assembly 15 includes a first heat-conducting sleeve 1501, a second heat-conducting sleeve 1502, heat dissipation fins 1503, a connecting plate 1504, and a connecting bolt 1505. The heat dissipation fins 1503 are disposed on the first heat-conducting sleeve 1501 and the second heat-conducting sleeve 1502. The connecting plate 1504 is installed at the end position of the first heat-conducting sleeve 1501 and the second heat-conducting sleeve 1502, and the connecting plate 1504 is provided with a round hole. The connecting bolt 1505 passes through the round hole, and the end of the connecting bolt 1505 is provided with a nut.

[0027] When installing the heat dissipation assembly 15 on the oil reservoir 3, the first heat-conducting sleeve 1501 and the second heat-conducting sleeve 1502 are attached to the oil reservoir 3. The connecting bolt 1505 passes through the round hole on the connecting plate 1504, and a nut is set at the end of the connecting bolt 1505 to complete the fixing of the heat-conducting sleeve. The heat dissipation assembly 15 on the air reservoir 4 is installed in the same manner, and then it can be used. During the use of the gas spring, the heat generated inside the oil reservoir 3 and the air reservoir 4 is transferred to the heat dissipation fins 1503 through the heat-conducting sleeves, and then dissipated into the air, achieving a rapid heat dissipation effect and ensuring the normal operation of the gas spring.

[0028] It should be noted that the sealing component 9 is used, and a trapezoidal groove 903 is set on the insert liner 901 and the limiting protrusion 902. It is used in conjunction with the sealing gasket 904. When the oil cylinder 3 and the air cylinder 4 are connected and assembled, the sealing gasket 904 is compressed and deformed, which can better fit the inner wall of the groove 903 and ensure the sealing effect. Through the heat dissipation component 15, the heat dissipation is carried out by the heat-conducting sleeve and the heat dissipation fins 1503. The heat of the oil cylinder 3 and the air cylinder 4 can be quickly dissipated, which can extend the service life of the entire oil-gas spring to a certain extent. The first heat-conducting sleeve 1501 and the second heat-conducting sleeve 1502 are used in conjunction with the connecting bolt 1505. The heat dissipation component 15 can be quickly disassembled and assembled without affecting the normal injection and discharge of oil and high-pressure gas.

[0029] The foregoing describes the working principle, features, and beneficial effects of this utility model. Those skilled in the art will understand from the foregoing that it does not limit the utility model. The embodiments and description above illustrate the basic principles and features of this utility model. Various changes and improvements can be made to this utility model while remaining consistent with its concept, and all such improvements should fall within the scope of protection claimed by this utility model.

Claims

1. A multi-axle vehicle hydropneumatic balance suspension, comprising a suspension body (1), wherein a mounting seat (2) is provided on the suspension body (1), and a hydropneumatic spring body is provided on the mounting seat (2), wherein the hydropneumatic spring body is composed of an oil reservoir (3) and an air reservoir (4), characterized in that: The oil storage cylinder (3) has an oil chamber (5) inside and a piston rod (6) connected to the oil storage cylinder (3). The air storage cylinder (4) has an air chamber (7) inside. The part where the oil storage cylinder (3) and the air storage cylinder (4) are connected is provided with a sealing component (9). The oil storage cylinder (3) and the air storage cylinder (4) are provided with a heat dissipation component (15) on the outside.

2. The multi-axle vehicle hydropneumatic balance suspension according to claim 1, characterized in that: The oil storage cylinder (3) is connected to the air storage cylinder (4) by a connecting flange (8), and a floating piston (10) is provided in the air chamber (7) on the air storage cylinder (4).

3. The multi-axle vehicle hydropneumatic balance suspension according to claim 2, characterized in that: A damping valve is fixed on the oil storage cylinder (3), and a damping hole is provided on the damping valve.

4. A multi-axle vehicle hydropneumatic balance suspension according to claim 3, characterized in that: The piston rod (6) is provided with a first connecting seat (11) at its lower end, and the first connecting seat (11) is rotatably connected to the mounting seat (2). The gas storage cylinder (4) is provided with a second connecting seat (12) at its upper end.

5. A multi-axle vehicle hydropneumatic balance suspension according to claim 4, characterized in that: The oil storage cylinder (3) is provided with an oil inlet (13) and an oil outlet (14), and the air storage cylinder (4) is provided with an air inlet (16) and an air outlet (17).

6. A multi-axle vehicle hydropneumatic balance suspension according to claim 5, characterized in that: The sealing assembly (9) includes an insert liner (901), a limiting protrusion (902), a groove (903), and a sealing gasket (904). The insert liner (901) is fixed to the end of the oil reservoir (3) and is inserted into the air reservoir (4). The limiting protrusion (902) is fixed inside the air reservoir (4). The two grooves (903) are respectively opened on the insert liner (901) and the limiting protrusion (902). The sealing gasket (904) is embedded in the groove (903).

7. A multi-axle vehicle hydropneumatic balance suspension according to claim 6, characterized in that: The heat dissipation assembly (15) includes a first heat-conducting sleeve (1501), a second heat-conducting sleeve (1502), heat dissipation fins (1503), a connecting plate (1504), and a connecting bolt (1505). The heat dissipation fins (1503) are disposed on the first heat-conducting sleeve (1501) and the second heat-conducting sleeve (1502). The connecting plate (1504) is installed at the end position of the first heat-conducting sleeve (1501) and the second heat-conducting sleeve (1502), and the connecting plate (1504) is provided with a round hole. The connecting bolt (1505) passes through the round hole, and the end of the connecting bolt (1505) is provided with a nut.

Images