Vehicle swing arm mounting structure

Abstract

The utility model discloses a vehicle swing arm mounting structure, which relates to the technical field of vehicle engineering application, and comprises a rotating component and a buffer component, the rotating component comprises a shaft head and a rotating piece, and the rotating piece is rotatably sleeved on the shaft head. The buffering assembly comprises a buffering piece, the buffering piece comprises an elastic ring and a rigid ring, the shaft head is sleeved with an inner ring of the elastic ring, an outer ring of the elastic ring is connected with the rigid ring, and the peripheral side of the rigid ring is connected with the rotating piece. The vehicle swing arm installation structure can be used for being installed on an off-road vehicle and other large equipment vehicles for use, when the rotating part encounters large load pressure, the rotating part can transmit the pressure to the elastic ring through the rigid ring, and due to the fact that the elastic ring has certain buffering capacity, the pressure borne by the rotating part can be buffered, and the service life of the rotating part is prolonged. Pressure is prevented from directly acting on the shaft head, abrasion to the shaft head can be reduced, and the service life of the shaft head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle engineering applications, in particular to a vehicle swing arm installation structure. Background Art

[0002] For some larger equipment vehicles such as off-road vehicles, there is often relative swing between the elastic element and the swing arm of the vehicle, and wear between the elastic element and the swing arm is inevitable. Bearings are generally used to provide a kinematic pair. However, when the axle load is large, how to reduce bearing wear and increase bearing service life while taking into account the rapid disassembly of various components for easy maintenance has become an important issue for large equipment vehicles.

[0003] The prior art with the announcement number CN106891682A discloses a structure of a lightweight balance shaft assembly, including: a shaft head, a bracket, a shaft housing, an end cover and a thrust washer. Specifically, the bracket is connected to the shaft housing, the bracket is provided with an inner hole, the shaft head is provided in the inner hole of the bracket, and the outer circle of one end of the shaft head is connected with the inner hole of the bracket by thermal interference fit; one end of the shaft head is provided with a shaft shoulder, and the shaft head and the bracket are positioned by the shaft shoulder; the shaft housing is provided with an inner hole, and the other end of the shaft head extends into the inner hole of the shaft housing, and the end face of the other end of the shaft head is provided with a stepped hole, and the stepped hole includes a cylindrical pin hole and a threaded hole.

[0004] However, this prior art still has defects, for example, its axle housing is connected to the axle head through a composite bushing, and the composite bushing does not have a large buffering capacity. When the transport vehicle carries heavy goods or travels on uneven places such as speed bumps, the axle housing will encounter a large load pressure, resulting in severe wear of the axle housing and the axle head, and a significant reduction in service life. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and propose a vehicle swing arm installation structure to solve the technical problem that the shaft housing of the balance shaft assembly structure in the prior art is connected to the shaft head through a composite bushing, and the composite bushing does not have a large buffering capacity. When the transport vehicle carries heavy goods or travels on uneven locations such as speed bumps, the shaft housing will encounter a large load pressure, resulting in serious wear of the shaft housing and the shaft head, and a significant reduction in service life.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a vehicle swing arm installation structure, comprising:

[0008] A rotating assembly comprises a shaft head and a rotating member, wherein the rotating member is rotatably sleeved on the shaft head; and

[0009] The buffer assembly comprises a buffer member, wherein the buffer member comprises an elastic ring and a rigid ring, wherein the inner ring of the elastic ring is sleeved on the shaft head, the rigid ring is connected to the outer ring of the elastic ring, and the outer peripheral side of the rigid ring is connected to the rotating member.

[0010] In some embodiments, an annular groove is formed on the outer ring of the elastic ring, and the rigid ring is clamped in the annular groove.

[0011] In some embodiments, the rotating member includes a bearing and a supporting member, the bearing is rotatably sleeved on the shaft head, the supporting member is connected to the bearing and the left and right sides of the supporting member extend out from the left and right sides of the bearing respectively to form two accommodating gaps, and there are two buffer members, which are respectively located in the two accommodating gaps.

[0012] In some embodiments, the two buffer members seal the two accommodating gaps respectively.

[0013] In some embodiments, the buffer assembly further includes a first retaining spring, which is sleeved on the shaft head and clamped on the supporting member, and the first retaining spring is located on a side of the buffer member facing away from the bearing.

[0014] In some embodiments, the buffer assembly further includes a second retaining spring, the second retaining spring is sleeved on the shaft head and clamped on the bearing component, and the second retaining spring is located between the buffer component and the bearing.

[0015] In some embodiments, a through hole is opened at the end of the shaft head, and the vehicle swing arm mounting structure also includes a bracket, a slotted nut and a washer, the shaft head is inserted into the bracket, the washer is sleeved on the shaft head, and the slotted nut is threadedly connected to the end of the shaft head and drives the washer to abut against the bracket.

[0016] In some embodiments, the buffer assembly further includes a sleeve, the sleeve is sleeved on the shaft head, the elastic ring is sleeved on the sleeve, and the sleeve is used to limit the axial position of the buffer.

[0017] In some embodiments, the shaft head is provided with an oil inlet passage, the inlet of the oil inlet passage is located at the end of the shaft head, and the outlet of the oil inlet passage is located at the connection between the shaft head and the rotating member.

[0018] In some embodiments, the shaft head is provided with multiple stepped shafts along its axial direction, and the outer diameters of the multiple stepped shafts decrease successively.

[0019] Compared with the prior art, the vehicle swing arm mounting structure provided by the utility model can be installed on some larger equipment vehicles such as off-road vehicles. When the rotating part encounters a large load pressure, the rotating part can transfer the pressure to the elastic ring through the rigid ring. Since the elastic ring has a certain buffering capacity, it can buffer the pressure borne by the rotating part, avoid the pressure directly acting on the shaft head, reduce the wear on the shaft head, and extend the service life of the shaft head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the vehicle swing arm installation structure provided by an embodiment of the utility model;

[0021] Figure 2 It is a disassembly schematic diagram of the buffer provided by the embodiment of the utility model;

[0022] Figure 3 It is a cross-sectional schematic diagram of a vehicle swing arm mounting structure provided by an embodiment of the utility model;

[0023] Figure 4 It is a cross-sectional schematic diagram of the shaft head provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In order to solve the technical problem that the shaft housing of the balance shaft assembly structure in the prior art is connected to the shaft head through a composite bushing, and the composite bushing does not have a large buffering capacity. When the transport vehicle carries heavy goods or travels on uneven locations such as speed bumps, the shaft housing will encounter a large load pressure, resulting in serious wear of the shaft housing and the shaft head, and a significant reduction in service life, the utility model provides a vehicle swing arm installation structure, which can realize that when the rotating part encounters a large load pressure, the rotating part can transfer the pressure to the elastic ring through the rigid ring. Since the elastic ring has a certain buffering capacity, it can buffer the pressure borne by the rotating part, avoid the pressure directly acting on the shaft head, reduce the wear on the shaft head, and extend the service life of the shaft head.

[0026] It should be noted that the vehicle swing arm mounting structure described in the utility model is used for but not limited to off-road vehicles, etc. For the convenience of explanation, in the utility model, only the vehicle swing arm mounting structure applied to off-road vehicles is used as an example for explanation, and the principle of applying the vehicle swing arm mounting structure to other types of equipment is essentially the same as the principle applied to off-road vehicles, which will not be repeated here.

[0027] See also Figure 1 , Figure 1 The schematic diagram of the structure of the vehicle swing arm mounting structure in one embodiment of the utility model comprises a rotating assembly and a buffer assembly, wherein the rotating assembly comprises a shaft head 1 and a rotating member 2, and the rotating member 2 is rotatably sleeved on the shaft head 1. The buffer assembly comprises a buffer member 3, and the buffer member 3 comprises an elastic ring 31 and a rigid ring 32, wherein the inner ring of the elastic ring 31 is sleeved on the shaft head 1, the outer ring of the elastic ring 31 is connected to the rigid ring 32, and the outer peripheral side of the rigid ring 32 is connected to the rotating member 2. In this embodiment, the rotating member 2 is used to connect the load of the vehicle so that the load can move through the rotating member 2. When the vehicle encounters a bumpy road condition, for example, when the vehicle passes a speed bump at a high speed, the rotating member 2 will be subjected to a large load pressure instantly, and the rotating member 2 transfers the pressure to the elastic ring 31 through the rigid ring 32 for buffering, so as to avoid the shaft head 1 being directly subjected to the rigid force, which is beneficial to protecting the shaft head 1 and extending the service life of the shaft head 1. The elastic ring 31 of this embodiment is made of rubber material, so that the elastic ring 31 has a good buffering capacity.

[0028] In one embodiment, see Figure 2 The outer ring of the elastic ring 31 is provided with an annular groove 311, and the rigid ring 32 is clamped in the annular groove 311, so that the elastic ring 31 and the rigid ring 32 are easy to disassemble and replace. In other embodiments, the elastic ring 31 and the rigid ring 32 can also be connected by other methods, such as hot pressing and bonding. The rigid ring 32 can be made of metal, such as stainless steel, so that the rigid ring 32 has good anti-deformation ability.

[0029] In one embodiment, see Figure 3 The rotating member 2 includes a bearing 21 and a bearing member 22. The bearing 21 is rotatably sleeved on the shaft head 1. The bearing 21 and the bearing member 22 are interference fit. The bearing member 22 has strong elasticity and is used to directly bear the load pressure of the vehicle. In addition, the bearing member 22 is rotatably connected to the shaft head 1 through the bearing 21, so that the bearing member 22 can rotate relative to the shaft head 1. The left and right sides of the bearing member 22 extend from the left and right sides of the bearing 21 respectively to form two accommodating gaps (not shown in the figure). There are two buffer members 3, and the two buffer members 3 are respectively located in the two accommodating gaps, so that the two buffer members 3 can buffer the bearing member 22 at the same time. In addition, the two buffer members 3 respectively seal the two accommodating gaps, which can prevent external dust from contacting the bearing 21 and protect the bearing 21.

[0030] In one embodiment, see Figure 3The buffer assembly also includes a first retaining spring 4, which is sleeved on the shaft head 1 and clamped on the bearing 22. The first retaining spring 4 is located on the side of the buffer 3 facing away from the bearing. In this embodiment, the first retaining spring 4 can not only play an elastic buffering role on the bearing 22, but also limit the buffer 3 to prevent the buffer 3 from being separated from the accommodating notch. In this embodiment, two first retaining springs 4 are provided, and the two first retaining springs 4 are respectively arranged on the left and right sides of the bearing 21, and are both clamped on the bearing 22 in the circumferential direction. The two first retaining springs 4 can play a buffering role on the bearing 22 at the same time, and can also limit the two buffers 3.

[0031] In one embodiment, see Figure 3 The buffer assembly further includes a second retaining spring 5, which is sleeved on the shaft head 1 and clamped on the bearing 22, and is located between the buffer 3 and the bearing 21. In this embodiment, the second retaining spring 5 can not only further buffer the bearing 22, but also limit the bearing 21. There are two second retaining springs 5 ​​in this embodiment, and the two second retaining springs 5 ​​are respectively located on the left and right sides of the bearing 21, and the two second retaining springs 5 ​​are clamped on the bearing 22 in the circumferential direction to fix the two second retaining springs 5.

[0032] In one embodiment, see Figure 1 The vehicle swing arm mounting structure further includes a bracket 6, the bracket 6 has an axial hole and a movable groove 61, and the shaft head 1 is installed through the axial hole. The rotating member 2 is rotatably connected to the shaft head 1 in the movable groove 61. The bracket 6 can be made of aluminum alloy, so that the bracket 6 not only has sufficient hardness, but also is light in weight, and the bracket 6 can be installed on the vehicle quickly and conveniently.

[0033] In one embodiment, see Figure 3 The buffer assembly further includes a sleeve 7, which is sleeved on the shaft head 1, and the elastic ring 31 is sleeved on the sleeve 7. The sleeve 7 is used to axially limit the buffer 3. In this embodiment, the sleeve 7 includes an integrally formed collar 71 and a flange 72. The collar 71 is sleeved on the shaft head 1, and the elastic ring 31 is sleeved on the collar 71. One side of the flange 72 abuts against the elastic ring 31, and the other side of the flange 72 abuts against the bracket 6, so that the sleeve 7 limits the buffer 3. In this embodiment, there is only one sleeve 7, which is located on one side of the bearing 21.

[0034] In one embodiment, see Figure 3The shaft head 1 is provided with an oil inlet passage 11, the entrance of which is located at the end of the shaft head 1, and the outlet of the oil inlet passage 11 is located at the connection between the shaft head 1 and the rotating member 2, specifically, the connection between the shaft head 1 and the bearing 21. In this embodiment, an oil nozzle 8 is provided at the end of the shaft head 1, and the oil nozzle 8 is used to connect an external oil supply device. The oil supply device can supply oil to the oil inlet passage 11 through the oil nozzle 8, and the oil flows to the connection between the shaft head 1 and the bearing 21, which can play a lubricating role and prevent excessive wear of the shaft head 1 and the bearing 21.

[0035] In one embodiment, see Figure 4 , the shaft head 1 is provided with multiple stepped shafts along its axial direction, and the outer diameters of the multiple stepped shafts decrease in sequence. In this embodiment, the shaft head 1 is provided with a total of five stepped shafts, which are divided into the first stepped shaft 12, the second stepped shaft 13, the third stepped shaft 14, the fourth stepped shaft 15 and the fifth stepped shaft 16 in descending order according to the outer diameter. The first stepped shaft 12 is a flange surface, and a limit step is machined at the end. The first stepped shaft 12 is non-cylindrical and is used to achieve a clamping connection with the bracket 6 to prevent the shaft head 1 and the bracket 6 from rotating relative to each other. The second stepped shaft 13 and the fourth stepped shaft 15 are installation support shafts, which serve as the main support of the assembly structure and are used to rotate and connect the bracket 6. The third stepped shaft 14 is the main force-bearing shaft used to cooperate with the bearing 21 and bear the force transmitted by the bearing 22. The fifth stepped shaft 16 is an external threaded structure, which is used to cooperate with the slotted nut 17, and a washer 18 is provided between the slotted nut 17 and the bracket 6. The bracket 6 can be tightened by the threaded connection of the slotted nut 17 in cooperation with the first stepped shaft 12 .

[0036] When disassembling the shaft head 1, the slotted nut 17 can be disassembled first, the washer 18 can be taken out, and the shaft head 1 can be pulled out from the stepped shaft in the direction of increasing outer diameter. Since the stepped shaft outer diameter of the shaft head 1 is set from small to large, it is very smooth to pull out the shaft head 1, which improves the work efficiency for later maintenance.

[0037] The end of the shaft head 1 is provided with a through hole 19, and the slotted nut 17 is also provided with a corresponding hole. When the slotted nut 17 is installed, a latch 20 can be used to insert the slotted nut and penetrate the through hole 19 to position the slotted nut 17, thereby preventing the slotted nut from loosening.

[0038] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the utility model is described in detail:

[0039] The vehicle swing arm mounting structure provided by the utility model can be installed on some larger equipment vehicles such as off-road vehicles. When the rotating part 2 encounters a large load pressure, the rigid ring 32, the first retaining spring 4 and the second retaining spring 5 jointly bear the pressure, and the rigid ring 32 transfers part of the pressure to the elastic ring 31. The elastic ring 31 has a certain buffering capacity and can buffer the pressure borne by the rotating part, avoiding the pressure from directly acting on the shaft head 1, reducing the wear on the shaft head 1, and helping to extend the service life of the shaft head 1. The buffer 3 composed of the elastic ring 31 and the rigid ring 32 completely blocks the bearing 21, which can prevent sand from contacting the bearing 21 and protect the bearing 21.

[0040] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A vehicle swing arm mounting structure, characterized in that: include: The rotating assembly comprises a shaft head and a rotating member, wherein the rotating member is rotatably sleeved on the shaft head; and The buffer assembly comprises a buffer member, wherein the buffer member comprises an elastic ring and a rigid ring, wherein the inner ring of the elastic ring is sleeved on the shaft head, the rigid ring is connected to the outer ring of the elastic ring, and the outer peripheral side of the rigid ring is connected to the rotating member.

2. The vehicle swing arm mounting structure according to claim 1, characterized in that: The outer ring of the elastic ring is provided with an annular groove, and the rigid ring is clamped in the annular groove.

3. The vehicle swing arm mounting structure according to claim 1, characterized in that: The rotating member includes a bearing and a supporting member, the bearing is rotatably sleeved on the shaft head, the supporting member is connected to the bearing and the left and right sides of the supporting member extend out from the left and right sides of the bearing respectively to form two accommodating gaps, and there are two buffer members, which are respectively located in the two accommodating gaps.

4. The vehicle swing arm mounting structure according to claim 3, characterized in that: The two buffer members seal the two accommodating gaps respectively.

5. The vehicle swing arm mounting structure according to claim 3, characterized in that: The buffer assembly further includes a first retaining spring, which is sleeved on the shaft head and clamped on the bearing component, and the first retaining spring is located on a side of the buffer component facing away from the bearing.

6. The vehicle swing arm mounting structure according to claim 3, characterized in that: The buffer assembly also includes a second retaining spring, which is sleeved on the shaft head and clamped on the bearing component, and the second retaining spring is located between the buffer component and the bearing.

7. The vehicle swing arm mounting structure according to claim 1, characterized in that: A through hole is provided at the end of the shaft head, and the vehicle swing arm mounting structure also includes a bracket, a slotted nut and a washer. The shaft head is inserted into the bracket, the washer is sleeved on the shaft head, and the slotted nut is threadedly connected to the end of the shaft head and drives the washer to abut against the bracket.

8. The vehicle swing arm mounting structure according to claim 1, characterized in that: The buffer assembly also includes a shaft sleeve, the shaft sleeve is sleeved on the shaft head, the elastic ring is sleeved on the shaft sleeve, and the shaft sleeve is used to limit the axial position of the buffer component.

9. The vehicle swing arm mounting structure according to claim 1, characterized in that: The shaft head is provided with an oil inlet passage, the inlet of the oil inlet passage is located at the end of the shaft head, and the outlet of the oil inlet passage is located at the connection between the shaft head and the rotating member.

10. The vehicle swing arm mounting structure according to claim 1, characterized in that: The shaft head is provided with multiple stepped shafts along its axial direction, and the outer diameters of the multiple stepped shafts decrease in sequence.

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