Suspension hydro-pneumatic spring support and suspension structure

Abstract

The utility model provides a suspension hydro-pneumatic spring support and a suspension structure, and belongs to the technical field of vehicle suspensions. According to the technical scheme, the suspension hydro-pneumatic spring support comprises a support bottom plate body, the support bottom plate body is fixedly connected with an axle, the end, opposite to the axle, of the support bottom plate body is provided with two lug plate bodies distributed at intervals in the first direction, the lug plate bodies are provided with fixing holes, the fixing holes extend in the second direction, and the fixing holes can be connected with hydro-pneumatic springs through fixing pin bodies. The first direction is perpendicular to the second direction. The extension direction of the fixing hole is perpendicular to the interval direction of the two lug plate bodies, so that the connecting direction of the fixing hole and the hydro-pneumatic spring is consistent with the load transmission direction, the load applied by the hydro-pneumatic spring is effectively transmitted and dispersed, stress deformation and breakage of the support are effectively avoided, the structural strength of the support is improved, and the service life of the support is prolonged. The compression resistance and the stability are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle suspension technical field especially relates to a suspension oil gas spring support and suspension structure. BACKGROUND

[0002] The main function of the suspension system is to transmit the force and torque between the wheel and the axle, and to buffer the impact and vibration from the uneven road to the axle or the vehicle body, so as to ensure the smooth driving of the vehicle, and among them, the oil gas suspension is also called oil gas spring suspension and hydraulic air suspension, which is a kind of suspension device using oil gas spring. The oil gas spring can be an independent suspension or a non-independent suspension, which uses gas as elastic medium and liquid as force transmission medium, not only has good buffering capacity, but also has damping effect, and can also adjust the height of the vehicle frame. When the load increases, the distance between the vehicle frame and the axle shortens, the piston moves up to reduce the volume of the inner cavity filled with working fluid, forcing the working fluid to move the oil gas diaphragm to the nitrogen chamber with a certain pressure, reducing the volume of the chamber, increasing the nitrogen pressure, increasing the spring stiffness, and slowly lowering the vehicle frame. When the load decreases, the oil gas diaphragm moves to the oil chamber side under the action of high-pressure nitrogen pressure, pushing the piston to move down, thereby reducing the spring stiffness, increasing the distance between the vehicle frame and the axle, and slowing down the vehicle frame.

[0003] The oil gas spring support is a device for installing the oil gas spring suspension, and has certain requirements for its structure, function and stress. In the existing support, two ear seats are usually provided, mounting holes are arranged on the ear seats, and the oil gas spring is connected with the oil gas spring through bolts. The extension direction of the mounting hole is usually consistent with the thickness direction of the ear seat, and the oil gas spring cross arm is between the two ear seats. In order to reduce the dead weight, the thickness of the ear seat is small. When used in large-tonnage engineering vehicles, the oil gas spring will apply a large load perpendicular to the axis of the mounting hole to the support, so that the support is prone to breakage at the mounting hole, and the bolt is prone to bending or breaking, thereby affecting the normal use of the oil gas spring suspension. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of suspension oil gas spring supports and suspension structures for the insufficient strength of current oil gas spring support at the connection with oil gas spring, prone to breakage due to large load.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of suspension oil gas spring support, including support bottom plate body, support bottom plate body is fixedly connected with axle, and the end of support bottom plate body is along first direction with two ear seat plate bodies of interval distribution relative to axle, and ear seat plate body is equipped with fixed hole, fixed hole is along second direction extension, fixed hole can be connected with oil gas spring by fixed pin body, and first direction and second direction are perpendicular.

[0007] Further, the ear seat plate body is provided with a support part and a fixed part connected in sequence, one end of the support part is fixedly connected with the support base plate body, the fixed part is fixedly connected at the end of the support part away from the support base plate body, and the fixed part is provided with an opening penetrating through the body along the second direction to form a fixed hole.

[0008] Further, the cross-sectional length of the support part gradually decreases outward from the support base plate body along the extension direction of the support part, and the length of the fixed part is not less than the cross-sectional length of the end of the support part away from the support base plate body.

[0009] Further, the end of the fixed part away from the support part is a circular arc transition structure.

[0010] Further, the thickness of the ear seat plate body is greater than the thickness of the support base plate body.

[0011] Further, a reinforcing rib plate extending along the first direction is arranged between the two ear seat plate bodies, the two ends of the reinforcing rib plate along the first direction are fixedly connected with the two ear seat plate bodies respectively, and the end of the reinforcing rib plate adjacent to the ear seat plate body is fixedly connected with the support base plate body.

[0012] Further, an accommodation space is arranged between the end of the reinforcing rib plate away from the support base plate body and the axis of the fixed hole in the extension direction of the ear seat plate body, and the accommodation space can be passed through by part of the oil gas spring.

[0013] Further, the support base plate body is provided with at least two installation assemblies arranged at intervals along the second direction, each installation assembly is provided with a plurality of installation holes uniformly distributed along the first direction, and the installation holes can be connected with the axle through fixing bolts.

[0014] Further, the support base plate body is provided with a positioning pin hole between the two installation assemblies, and the positioning pin hole is used for positioning installation with the axle.

[0015] The utility model also provides a kind of suspension structure, including axle, oil gas spring body and a kind of suspension oil gas spring support of any one in above-mentioned, support base plate body is fixedly connected with axle, oil gas spring body is provided with first ball pin and second ball pin at two ends along its own axial direction respectively, first ball pin is connected with axle, and second ball pin is connected with fixed hole.

[0016] Through the above technical scheme, the advantages of the utility model are as follows:

[0017] The utility model makes the extension direction of fixed hole and the interval direction of two ear seat plate bodies perpendicular, so that the connecting direction of fixed hole and oil gas spring is consistent with load transmission direction, effectively transmits and disperses the load applied by oil gas spring, effectively avoids that the support is deformed and fractured under stress, improves the structural strength of the support, and enhances the compression resistance and stability. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the technical scheme of the utility model more clear, the following will briefly introduce the drawings needed to be used in the description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is the first visual angle structural schematic view of the support in an embodiment of the utility model;

[0020] Figure 2 It is the second visual angle structural schematic view of the support in an embodiment of the utility model;

[0021] Figure 3 It is the third visual angle structural schematic view of the support in an embodiment of the utility model;

[0022] Figure 4 It is the mounting structural schematic view of the support and axle in an embodiment of the utility model.

[0023] Main drawing mark explanation:

[0024] 100, axle;200, oil gas spring body;210, second ball pin;310, support base plate body;311, mounting hole;312, positioning pin hole;320, ear seat plate body;321, fixed hole;322, support part;323, fixed part;330, reinforcing rib plate. Specific embodiment

[0025] In order to make the purpose, feature, advantage of the utility model more obvious and easy to understand, the following will combine the drawings in the specific embodiment, and the technical scheme in the utility model is clearly and completely described, obviously, the following described embodiment is only a part of the embodiment of the utility model, and not all the embodiments. Based on the embodiment in the patent, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the patent protection.

[0026] Embodiment 1

[0027] Please refer to Figures 1-3 A suspension oil gas spring support, including support base plate body 310, support base plate body 310 and axle 100 fixed connection, support base plate body 310 relative axle 100 one end along the first direction and be equipped with two ear seat plate body 320 of interval distribution, ear seat plate body 320 is equipped with fixed hole 321, fixed hole 321 along the second direction extension, fixed hole 321 can be connected with oil gas spring through fixed pin body, first direction and second direction are perpendicular.

[0028] In the embodiment, as Figure 1As shown, the support bottom plate body 310 is a rectangular plate structure, and when installed, the support bottom plate body 310 is fixed on the axle 100 in the vertical direction, wherein the first direction is the width direction of the support bottom plate body 310, the second direction is the length direction of the support, the first direction and the second direction are perpendicular, two lug plate bodies 320 are connected to one end of the support bottom plate body 310 away from the axle 100, the two lug plate bodies 320 are spaced apart along the width direction of the support bottom plate body 310, the thickness direction of the lug plate body 320 is the width direction of the support plate body, and the distance between the two lug plate bodies 320 is determined according to the size of the connected oil gas spring, wherein the extension direction of the lug plate body 320 is perpendicular to the extension direction of the support bottom plate body 310, and a fixing hole 321 is arranged on each of the two lug plate bodies 320, the extension direction of the fixing hole 321 is the length direction of the support bottom plate body 310, so that when the support bottom plate body 310 is fixed on the axle 100, the fixing hole 321 extends in the vertical direction, and when installed, the oil gas spring is arranged in the vertical direction, the oil gas spring is inserted into the ball pin at one end, and the two ends of the ball pin are connected to the fixing holes 321 on the two lug plate bodies 320 through the fixing pin body, so that the oil gas spring is connected between the two lug plate bodies 320, and the fixing pin body can be a bolt structure. When in use, the oil gas spring transmits the vertical load to the support, and the fixing holes 321 connected to the oil gas spring extend in the vertical direction, so as to be consistent with the load direction, which can effectively transmit and disperse the load borne by the support.

[0029] In the above structure, by making the extension direction of the fixing hole 321 perpendicular to the spacing direction of the two lug plate bodies 320, the connection direction of the fixing hole 321 and the oil gas spring is consistent with the load transmission direction, so as to effectively transmit and disperse the load applied by the oil gas spring, effectively avoid the deformation and fracture of the support under stress, improve the structural strength of the support, and enhance the compression resistance and stability.

[0030] In the specific structure of the lug plate body 320, as shown in Figure 1 the lug plate body 320 is provided with a support portion 322 and a fixing portion 323 connected in sequence, one end of the support portion 322 is fixedly connected to the support bottom plate body 310, the fixing portion 323 is fixedly connected to the end of the support portion 322 away from the support bottom plate body 310, and the fixing portion 323 is provided with an opening penetrating through the body thereof in the second direction to form the fixing hole 321. The cross-sectional length of the support portion 322 gradually decreases outward from the support bottom plate body 310 along the extension direction thereof, and the length of the fixing portion 323 is not less than the cross-sectional length of the end of the support portion 322 away from the support bottom plate body 310. The end of the fixing portion 323 away from the support portion 322 is a circular arc transition structure. The thickness of the lug plate body 320 is greater than the thickness of the support bottom plate body 310.

[0031] In this embodiment, the two ear-mount plates 320 have the same structure. Taking a single ear-mount plate 320 as an example, the ear-mount plate 320 includes a support part 322 and a fixing part 323 that are fixedly connected in sequence. The support part 322 is a plate-shaped structure. The tail end of the support part 322 is fixedly connected to the support base plate 310, and the top end of the support part 322 is fixedly connected to the fixing part 323. The fixing part 323 can be a cuboid structure, and its length direction is consistent with the length direction of the support base plate 310. A fixing hole 321 is provided inside the fixing part 323, which extends through the body along its length direction, so that the fixing hole 321 extends along the width direction of the support part 322, thereby increasing the thickness of the fixing hole 321 in the connection direction and further improving the strength and rigidity of the fixing hole 321. By supporting the fixing part 323 through the support part 322, the support part 322 can effectively support the gas spring and disperse the load applied by the gas spring, ensuring the connection stability.

[0032] Specifically, the cross-sectional length of the support portion 322 gradually decreases from the support base plate 310 towards the extending direction, forming a "narrower at the top and wider at the bottom" structure. This structure helps reduce its own weight while increasing the connection strength with the support base plate 310, further improving the stability and load-bearing capacity of the connection. Furthermore, the length of the fixing portion 323 is slightly greater than or equal to the length of the top of the support portion 322, effectively preventing interference between the support portion 322 and the gas spring during installation. The top of the fixing portion 323 has a rounded transition structure, resulting in more even force distribution and better stress distribution. The fixing portion 323 can also be a tubular structure.

[0033] Specifically, the thickness of the ear plate 320 is greater than the thickness of the support base plate 310, thereby improving the structural strength and rigidity of the support, effectively enhancing the load-bearing capacity of the gas spring under vertical load, and ensuring connection stability.

[0034] In addition, such as Figure 2 As shown, a reinforcing rib 330 extending along a first direction is provided between the two ear plate bodies 320. Both ends of the reinforcing rib 330 along the first direction are fixedly connected to the two ear plate bodies 320 respectively. One end of the reinforcing rib 330 adjacent to the ear plate body 320 is fixedly connected to the support base plate body 310. A receiving space is provided between the end of the reinforcing rib 330 away from the support base plate body 310 and the axis of the fixing hole 321 in the extending direction of the ear plate body 320. This receiving space allows a portion of the gas spring to pass through.

[0035] In the embodiment, the two ear seat plate bodies 320 are also fixedly connected with a transversely arranged reinforcing rib plate 330. The reinforcing rib plate 330 is in a rectangular plate structure, the length direction of the reinforcing rib plate 330 is the width direction of the seat bottom plate body 310, the width direction of the reinforcing rib plate 330 is the length direction of the seat bottom plate body 310, the height direction of the reinforcing rib plate 330 is the extension direction of the support part 322, the two ends of the reinforcing rib plate 330 along the length direction are fixedly connected with the side ends of the support part 322 respectively, and the bottom end of the reinforcing rib plate 330 is fixedly connected with the seat bottom plate body 310, thereby providing transverse supporting force for the two ear seat bodies, effectively transmitting and dispersing the transverse load applied by the oil gas spring, increasing the structural strength and rigidity of the ear seat plate body 320, effectively avoiding the deformation of the ear seat body due to transverse torsion, and further improving the stability and service life of the seat.

[0036] The height of the reinforcing rib plate 330 is less than the height between the axis of the fixing hole 321 and the seat bottom plate body 310, so that there is a certain height difference between the reinforcing rib plate 330 and the axis of the fixing hole 321 to form an accommodation space, thereby effectively avoiding the interference between the reinforcing rib plate 330 and the oil gas spring when the oil gas spring is connected with the ear seat plate body 320, and improving the compactness of the structure of the seat.

[0037] In the specific structure of the seat bottom plate body 310, as shown in Figure 3 The seat bottom plate body 310 is provided with at least two spaced installation assemblies in the second direction, each installation assembly is provided with a plurality of installation holes 311 uniformly distributed in the first direction, and the installation holes 311 can be connected with the axle 100 through fixing bolts. The seat bottom plate body 310 is provided with a positioning pin hole 312 between the two installation assemblies, and the positioning pin hole 312 is used at least for positioning installation with the axle 100.

[0038] In the embodiment, the second direction is the length direction of the seat bottom plate body 310, and the first direction is the width direction of the seat bottom plate body 310. In the connection structure of the axle 100, two installation assemblies are arranged on the seat bottom plate body 310, the two installation assemblies are distributed on the two side ends of the seat bottom plate body 310 in the length direction of the seat bottom plate body 310, each installation assembly includes installation holes 311 uniformly distributed in the width direction of the seat bottom plate body 310, in the installation, a fixing pin body passes through the installation holes 311 and the axle 100, thereby fixedly connecting the seat bottom plate body 310 with the axle 100, the fixing pin body can be a bolt, to ensure the firmness and stability of the connection. In addition, the seat bottom plate body 310 is designed to be thickened to improve the bending and compression resistance, increase the structural rigidity, enhance the load bearing capacity and durability, and the seat bottom plate body 310 is provided with a plurality of installation holes 311 to disperse the stress points, thereby improving the strength and anti-deformation capacity of the connection between the seat bottom plate body 310 and the axle 100.

[0039] In addition, the positioning pin hole 312 is arranged at the middle position of the end surface of the support bottom plate body 310 close to the axle 100, and the relative position of the support and the axle 100 can be quickly determined through the cooperation of the positioning pin hole 312 and the positioning pin on the axle 100, so that the connection efficiency is improved, and the cooperation of the positioning pin and the positioning pin hole 312 can provide additional support and fixation to prevent relative displacement and loosening of the components during operation, thereby enhancing the stability and reliability of the overall structure.

[0040] Embodiment 2

[0041] Please refer to Figure 4 The utility model also provides a suspension structure which comprises an axle 100, an oil gas spring body 200 and a suspension oil gas spring support according to any one of the above, the support bottom plate body 310 is fixedly connected with the axle 100, the oil gas spring body 200 is provided with a first ball pin and a second ball pin 210 at both ends along the axial direction thereof, the first ball pin is connected with the axle 100, and the second ball pin 210 is connected with the fixed hole 321.

[0042] In the embodiment, the support bottom plate body 310 is fixedly connected with the axle 100 through bolts, the oil gas spring body 200 extends in the vertical direction, and is provided with a first ball pin and a second ball pin 210 at both ends along the axial direction thereof, wherein the first ball pin at the top side is connected with the axle 100, and the second ball pin 210 at the bottom side is connected with the fixed hole 321 on the lug plate body 320 through bolts, so that the cross push is installed on the support, and the installation mode of the support, the axle 100 and the oil gas spring body 200 can uniformly transmit the vertical load and other loads from the oil gas spring body 200 to the frame, ensure the balance and stability of the structure under the stress condition, and improve the carrying capacity.

[0043] In addition, the second ball pin 210 is connected with the lug plate body 320 through bolts, the ball pin structure is free and flexible, so that the oil gas spring can freely rotate and tilt in all directions to adapt to the road surface changes and the movement of the suspension system during vehicle driving, and the connecting structure is simpler, and the oil gas spring can be connected with the support only through bolts without the need of a spacer to limit the left-right displacement of the oil gas spring. In addition, a grease filling port is designed at the installation position of the second ball pin 210, the hinge position is well lubricated, the friction and resistance of the suspension system are reduced, the suspension performance and driving comfort of the vehicle are improved, and the transmission of noise and vibration is also reduced. The fixing surfaces of the second ball pin 210 and the bolts are located on the lug plate bodies 320 on both sides of the structure, the oil gas spring body 200 is installed above the support, the load is directly transmitted to the support through the second ball pin 210, and the connecting bolts of the oil gas spring body 200 are basically not stressed, so that the bolt connection failure is avoided.

[0044] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A suspension hydrogas spring bearing, characterized in that, The support base plate body is fixedly connected with an axle, and two lug base plate bodies are arranged at one end of the support base plate body in a first direction, the lug base plate bodies are provided with fixing holes extending in a second direction, the fixing holes are connected with oil gas springs through fixing pins, and the first direction is perpendicular to the second direction.

2. The oil gas suspension strut of claim 1, wherein The lug base plate body is provided with a support part and a fixing part connected in sequence, one end of the support part is fixedly connected with the support base plate body, the fixing part is fixedly connected at an end of the support part away from the support base plate body, and the fixing part is provided with an opening penetrating through the body in the second direction to form the fixing hole.

3. The oil gas suspension strut of claim 2, wherein, The cross-sectional length of the support part gradually decreases outward from the support base plate body along the extension direction of the support part, and the length of the fixing part is not less than the cross-sectional length of the end of the support part away from the support base plate body.

4. The oil gas suspension strut of claim 2, wherein, The end of the fixing part away from the support part is a circular arc transition structure.

5. A suspension hydro-pneumatic spring bearing according to any one of claims 2-4, characterized in that, The thickness of the lug base plate body is greater than the thickness of the support base plate body.

6. The hydro-pneumatic suspension unit according to claim 1, characterized in that A reinforcing rib plate extending in the first direction is arranged between the two lug base plate bodies, the two ends of the reinforcing rib plate in the first direction are fixedly connected with the two lug base plate bodies respectively, and one end of the reinforcing rib plate adjacent to the lug base plate body is fixedly connected with the support base plate body.

7. The hydro-pneumatic suspension unit according to claim 6, characterized in that The end of the reinforcing rib plate away from the support base plate body is provided with an accommodation space in the extension direction of the lug base plate body between the axis of the fixing hole, and the accommodation space is used for accommodating part of the oil gas spring.

8. The hydro-pneumatic suspension unit according to claim 1, characterized in that The support base plate body is provided with at least two mounting assemblies arranged at intervals in the second direction, each mounting assembly is provided with a plurality of mounting holes uniformly arranged at intervals in the first direction, and the mounting holes are connected with the axle through fixing bolts.

9. The hydro-pneumatic suspension unit according to claim 8, characterized in that The support base plate body is provided with a positioning pin hole between the two mounting assemblies, and the positioning pin hole is used for positioning installation with the axle.

10. A suspension structure characterized by, The suspension oil gas spring support is fixedly connected with an axle, the oil gas spring body is provided with a first ball pin and a second ball pin at two ends in the axial direction respectively, the first ball pin is connected with the axle, and the second ball pin is connected with the fixing hole.

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