Guiding arm adjusting structure and axle
By setting a stop and an eccentric hole structure with an adjustment ring on the outer wall of the bracket, the guide arm adjustment process is simplified, solving the problem of high cost caused by complex structure in the prior art, and realizing convenient wheelbase adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG FUWA HEAVY IND
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-29
AI Technical Summary
The existing guide arm adjustment structure of heavy vehicle suspension is complex, which increases costs.
The new structure adopts a guide arm, bracket and adjustment assembly. The bracket has a stop on the outer wall and the adjustment ring has an eccentric hole along the axis to cooperate with the bolt. The wheelbase is adjusted by rotating the adjustment ring to drive the bolt to move.
This design achieves simple and easy-to-operate guide arm adjustment, reducing costs.
Smart Images
Figure CN224296955U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive axle suspension technology, specifically to a guide arm adjustment structure and an axle. Background Technology
[0002] Existing heavy-duty vehicle suspensions include guide arms for connecting to the axle, brackets connected to the guide arms, and adjustment components. The brackets are connected to the end of the guide arms away from the axle and have a mounting hole along the axle axis of the heavy-duty vehicle. The adjustment components are used to adjust the wheelbase of the axle and include a wear-resistant grooved sleeve that mates with the mounting hole, a grooved adjustment plate that mates with the wear-resistant grooved sleeve, a square sleeve that mates with the grooved adjustment plate, and a pin bolt. The pin bolt passes sequentially through the square sleeve, the grooved adjustment plate, and the wear-resistant grooved sleeve on one side of the bracket body, and exits from the wear-resistant grooved sleeve, the grooved adjustment plate, and the square sleeve on the other side of the bracket body. When the wheelbase needs to be adjusted, the wheelbase is adjusted by moving the grooved adjustment plate up and down. However, the above structure is complex, which leads to increased costs. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a guide arm adjustment structure and axle that are simple in structure and easy to operate.
[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:
[0005] The guide arm adjustment structure includes a guide arm, a bracket, and an adjustment assembly;
[0006] The guide arm has a connecting end for connecting to the axle, and a mounting end opposite to the connecting end, wherein the mounting end has a through mounting hole along the axial direction of the axle.
[0007] The bracket is connected to the mounting end and its outer side wall is provided with a through hole corresponding to the mounting hole along the axial direction of the axle. The through hole extends along the radial direction of the axle. The outer side wall of the bracket is also provided with two stops located on opposite sides of the through hole.
[0008] The adjusting assembly includes a bolt and an adjusting ring. One end of the bolt passes through the through hole and the mounting hole to connect the bracket and the guide arm. The adjusting ring is located between the two stops and has an eccentric hole along its axial direction. The eccentric hole is offset relative to the axis of the adjusting ring and has a clearance fit with the other end of the bolt. The adjusting ring can abut against the stops.
[0009] Furthermore, the adjusting ring is recessed inward on the outer surface away from the bracket to form a groove, and an eccentric hole is formed inward near the bottom wall of the bracket, the eccentric hole penetrating the adjusting ring.
[0010] Furthermore, the other end of the bolt has a head, the diameter of which is larger than the diameter of the eccentric hole. The groove accommodates the head and the two are in clearance fit. The inner surface of the adjusting ring and the bottom wall of the groove abut against the outer wall of the bracket and the inner end face of the head, respectively.
[0011] Furthermore, the two ends of the groove respectively penetrate the opposite sides of the adjusting ring, and the bottom wall of the groove is also provided with an operating hole that is misaligned with the bolt, the operating hole penetrating the inner surface of the adjusting ring.
[0012] Furthermore, the two stops extend in the vertical direction and have a gap with the adjusting ring. An operating hole is opened inward on the outer surface of the adjusting ring, and the operating hole is located above the bolt.
[0013] Furthermore, a shock-absorbing sleeve is fitted inside the mounting hole, and a bushing is fitted inside the shock-absorbing sleeve. The bushing extends along the axial direction of the axle. There is a gap between the two opposite inner sidewalls of the bracket and the two ends of the bushing. The through hole is a waist hole, and the middle part between the two ends of the bolt fits with the bushing.
[0014] Furthermore, a sleeve is fixed to the mounting end, the axis of the sleeve is parallel to the axis of the axle, the inner hole of the sleeve forms the mounting hole, the bracket has two side plates, the two side plates are respectively located outside the two ends of the sleeve, and the first outer side wall of the two plates respectively forms an outer side wall of the bracket, the through hole penetrates through the two first outer side walls to form a through hole on each side plate, and the two stops are respectively located outside the opposite sides of the through hole.
[0015] Furthermore, the bracket has a connecting plate connecting the two side plates. The connecting plate is located on the side of the sleeve away from the axle. The two end faces of the shock absorber sleeve respectively protrude to form annular protrusions. A gasket is provided between the inner side wall of each side plate and one end face of the corresponding sleeve. The inner hole of one gasket is clearance-fitted with one of the protrusions. The end of the bolt away from the adjusting ring is located outside the side plate and is threaded with a nut. A washer is sleeved between the nut and the side plate on the bolt to abut against the nut and the side plate.
[0016] The guide arm adjustment structure of this utility model has two stops located on opposite sides of the through hole on the outer wall of the bracket, and an adjustment ring located between the two stops. The adjustment ring has an eccentric hole along its axial direction, which is clearance-fitted with the other end of the bolt. The adjustment ring can also abut against the stops. When the wheelbase of the axle is adjusted, the adjustment ring rotates and abuts against the stops to drive the bolt to move along the through hole. The bolt drives the guide arm to move, thereby realizing the wheelbase adjustment. That is, the guide arm adjustment structure is not only simple in structure but also convenient to operate.
[0017] This utility model embodiment also provides an axle, including the guide arm adjustment structure described in any of the above embodiments. Attached Figure Description
[0018] Figure 1 This is a partial exploded perspective view of the guide arm adjustment structure according to an embodiment of the present invention;
[0019] Figure 2 for Figure 1 A schematic diagram of local decomposition;
[0020] Figure 3 for Figure 1 A combination diagram;
[0021] Figure 4 for Figure 3 A sectional view. Detailed Implementation
[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:
[0023] like Figures 1 to 4 As shown, this utility model embodiment provides a guide arm adjustment structure, which is applied to the air suspension of a heavy vehicle axle. The guide arm adjustment structure includes a guide arm 1, a bracket 2 and an adjustment component 3, with the bracket 2 and the adjustment component 3 connected to the guide arm 1.
[0024] like Figure 1 , Figure 4 As shown, the guide arm 1 has a connecting end 11 for connecting to the axle 100, and a mounting end 12 opposite to the connecting end 11. The mounting end 12 has a through mounting hole 121 along the axial direction of the axle 100. Specifically, the connecting end 11 has a through shaft hole along the axial direction of the axle 100, and the shaft hole mates with the axle 100. A sleeve 15 is fixed to the mounting end 12 by welding. The axis of the sleeve 15 is parallel to the axis of the axle 100. The inner hole of the sleeve 15 forms the mounting hole 121. A shock-absorbing sleeve 13 is tightly fitted inside the mounting hole 121. The shock-absorbing sleeve 13 is provided with rubber to achieve shock absorption, and a bushing 14 is fitted inside it with clearance. The bushing 14 extends along the axial direction of the axle 100.
[0025] like Figure 1 , Figure 2 As shown, the bracket 2 is connected to the mounting end 12, and its outer side wall has a through hole 21 corresponding to the mounting hole 121, which extends inward along the axial direction of the axle 100. The through hole 21 extends in the radial direction of the axle 100. Specifically, the through hole 21 is located at the lower end of the bracket 2 and is a waist hole. More specifically, the bracket 2 has two side plates 23 and a connecting plate 24 connecting the two side plates 23. The two side plates 23 are located outside the two ends of the sleeve 15, and their first outer side walls 231 respectively form an outer side wall of the bracket 2. The through hole 21 penetrates the two first outer side walls 231. A waist-shaped through hole is formed on each side plate 23, that is, the through hole is a through hole 21. The connecting plate 24 is located on the side of the sleeve 15 away from the axle 100 and the two side plates 23 are integrally formed. The two opposite inner side walls of the bracket 2 have a gap between them and the two ends of the bushing 14 to facilitate installation. The outer side wall of the bracket 2 is also provided with two blocks 22 located on opposite sides of the through hole 21. More specifically, the two blocks 22 are located on opposite sides of the through hole. In this embodiment, the two blocks 22 extend in the vertical direction and have a gap between them and the adjusting ring 32.
[0026] like Figures 2 to 4 As shown, the adjusting assembly 3 includes a bolt 31 and an adjusting ring 32. One end of the bolt 31 passes through the through hole 21 and the mounting hole 121 to connect the bracket 2 and the guide arm 1. The other end of the bolt 31 has a head 311 for axially limiting the bolt 31. The diameter of the head 311 is larger than the diameter of the eccentric hole 321. The middle part between the two ends of the bolt 31 is clearance-fitted with the bushing 14. The adjusting ring 32 is located between the two stops 22 and has an eccentric hole 321 along its axial direction. The eccentric hole 321 is offset relative to the axis of the adjusting ring 32 and is clearance-fitted with the other end of the bolt 31. The adjusting ring 32 can abut against the stops 22. When adjusting the wheelbase of the axle 100, the adjusting ring 32 rotates and abuts against the stops 22 to drive the bolt 31 to move along the through hole 21. The bolt 31 drives the guide arm 1 to move, thereby realizing the wheelbase adjustment. That is, the guide arm adjusting structure is not only simple in structure but also convenient to operate.
[0027] like Figure 2 , Figure 4As shown, the outer surface of the adjusting ring 32 away from the bracket 2 is recessed inward to form a groove 322. An eccentric hole 321 is formed inward from the bottom wall of the groove 322 near the bracket 2, penetrating the adjusting ring 32. The groove 322 accommodates the head 311, and the two are fitted with a clearance to radially limit the bolt 31, preventing it from loosening. The inner surface of the adjusting ring 32 and the bottom wall of the groove 322 abut against the outer wall of the bracket 2 and the inner end face of the head 311, respectively, thus locking the adjusting ring 32 to the bracket 2. To facilitate rotation of the adjusting ring 32, an operating hole 323, offset from the bolt 31, is formed inward from the outer surface of the adjusting ring 32. The operating hole 323 is located above the bolt 31. When adjusting the wheelbase, an operating tool is inserted into the operating hole 323 and rotates the adjusting ring 32, thus achieving wheelbase adjustment, simplifying the operation. To simplify the processing, preferably, the two ends of the groove 322 pass through the opposite sides of the adjusting ring 32, and the bottom wall of the groove 322 is also provided with an operating hole 323, which passes through the inner surface of the adjusting ring 32.
[0028] like Figure 1 , Figure 4 As shown, the two ends of the shock-absorbing sleeve 13 respectively protrude to form annular protrusions 131. A gasket 16 for protection is provided between the inner wall of each side plate 23 and one end face of the corresponding sleeve 15. The inner hole of the gasket 16 is clearance-fitted with a protrusion 131 to achieve its radial limit. The end of the bolt 31 away from the adjusting ring 32 is located outside the side plate 23 and is threaded with a nut 33. A washer 4 is sleeved between the nut 33 and the side plate 23 on the bolt 31, which abuts against the nut 33 and the side plate 23. The bolt 31 locks the bracket 2 and the adjusting ring 32 to the mounting end 12 through the nut 33.
[0029] The guide arm adjustment structure of this utility model has two stops located on opposite sides of the through hole on the outer wall of the bracket, and an adjustment ring located between the two stops. The adjustment ring has an eccentric hole along its axial direction, which is clearance-fitted with the other end of the bolt. The adjustment ring can also abut against the stops. When the wheelbase of the axle is adjusted, the adjustment ring rotates and abuts against the stops to drive the bolt to move along the through hole. The bolt drives the guide arm to move, thereby realizing the wheelbase adjustment. That is, the guide arm adjustment structure is not only simple in structure but also convenient to operate.
[0030] This utility model embodiment also provides an axle (not shown), including an air suspension (not shown) and the guide arm adjustment structure described in any of the above embodiments, wherein the guide arm adjustment structure is installed on the guide arm of the air suspension.
[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A guide arm adjustment structure, characterized in that, Includes guide arms, brackets, and adjustment components; The guide arm has a connecting end for connecting to the axle, and a mounting end opposite to the connecting end, wherein the mounting end has a through mounting hole along the axial direction of the axle. The bracket is connected to the mounting end and its outer side wall is provided with a through hole corresponding to the mounting hole along the axial direction of the axle. The through hole extends along the radial direction of the axle. The outer side wall of the bracket is also provided with two stops located on opposite sides of the through hole. The adjusting assembly includes a bolt and an adjusting ring. One end of the bolt passes through the through hole and the mounting hole to connect the bracket and the guide arm. The adjusting ring is located between the two stops and has an eccentric hole along its axial direction. The eccentric hole is offset relative to the axis of the adjusting ring and has a clearance fit with the other end of the bolt. The adjusting ring can abut against the stops.
2. The guide arm adjustment structure as described in claim 1, characterized in that, The adjusting ring is recessed inward on the outer surface away from the bracket to form a groove, and an eccentric hole is formed inward near the bottom wall of the bracket, the eccentric hole penetrating the adjusting ring.
3. The guide arm adjustment structure as described in claim 2, characterized in that, The other end of the bolt has a head, the diameter of which is larger than the diameter of the eccentric hole. The groove accommodates the head and the two are in clearance fit. The inner surface of the adjusting ring and the bottom wall of the groove abut against the outer wall of the bracket and the inner end face of the head, respectively.
4. The guide arm adjustment structure as described in claim 2, characterized in that, The two ends of the groove pass through the opposite sides of the adjusting ring, and the bottom wall of the groove is also provided with an operating hole that is misaligned with the bolt. The operating hole passes through the inner surface of the adjusting ring.
5. The guide arm adjustment structure as described in claim 1, characterized in that, The two stops extend vertically and have a gap with the adjusting ring. The outer surface of the adjusting ring has an operating hole facing inward, and the operating hole is located above the bolt.
6. The guide arm adjustment structure as described in claim 1, characterized in that, A shock-absorbing sleeve is fitted inside the mounting hole, and a bushing is fitted inside the shock-absorbing sleeve. The bushing extends along the axial direction of the axle. There is a gap between the two opposite inner sidewalls of the bracket and the two ends of the bushing. The through hole is a waist hole, and the middle part between the two ends of the bolt fits with the bushing.
7. The guide arm adjustment structure as described in claim 6, characterized in that, A sleeve is fixed to the mounting end, the axis of the sleeve is parallel to the axis of the axle, the inner hole of the sleeve forms the mounting hole, the bracket has two side plates, the two side plates are respectively located outside the two ends of the sleeve, and the first outer side wall of the two side plates respectively forms an outer side wall of the bracket, the through hole penetrates through the two first outer side walls to form a through hole on each side plate, and the two stops are respectively located outside the opposite sides of the through hole.
8. The guide arm adjustment structure as described in claim 7, characterized in that, The bracket has a connecting plate connecting the two side plates. The connecting plate is located on the side of the sleeve away from the axle. The two end faces of the shock absorber sleeve respectively protrude to form annular protrusions. A gasket is provided between the inner side wall of each side plate and one end face of the corresponding sleeve. The inner hole of one gasket is clearance-fitted with one of the protrusions. The end of the bolt away from the adjusting ring is located outside the side plate and is threaded with a nut. A washer is sleeved between the nut and the side plate on the bolt to abut against the nut and the side plate.
9. An axle, characterized in that, Includes the guide arm adjustment structure as described in any one of claims 1 to 8.