CN217753398U - Maintenance-free balanced suspension assembly - Google Patents
Maintenance-free balanced suspension assembly Download PDFInfo
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- CN217753398U CN217753398U CN202221441155.5U CN202221441155U CN217753398U CN 217753398 U CN217753398 U CN 217753398U CN 202221441155 U CN202221441155 U CN 202221441155U CN 217753398 U CN217753398 U CN 217753398U
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- rubber sleeve
- spring seat
- plate spring
- balance shaft
- maintenance
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Abstract
The utility model discloses a maintenance-free balanced suspension assembly, which comprises a bracket, a connecting shaft, a balancing shaft and a plate spring seat, wherein a rubber sleeve is arranged between the plate spring seat and the balancing shaft, the rubber sleeve consists of a sleeve and a side retaining ring, a supporting steel pipe is pre-embedded at the position of the sleeve close to an inner ring, and a steel plate is pre-embedded in the side retaining ring; an end cover is arranged at the outer side end of the balance shaft to press the rubber sleeve and the plate spring seat on the bracket. The utility model adopts the polyurethane rubber sleeve, increases the pressing force on the plate spring seat, reduces the impact force on the balance shaft, and greatly prolongs the service life of the balance shaft; meanwhile, the strength of the rubber sleeve is enhanced by embedding the steel pipe and the steel plate in the rubber sleeve, so that the rubber sleeve has a larger expansion space towards the plate spring seat, the rubber sleeve is more tightly attached, the rubber sleeve and the plate spring seat cannot rotate relatively during working, the rubber sleeve and the balance shaft rotate relatively, the rubber sleeve can play a better buffering role on the balance shaft, and the service lives of the balance shaft and the rubber sleeve are prolonged.
Description
Technical Field
The utility model discloses balanced suspension field of car especially relates to a maintenance-free balanced suspension assembly.
Background
Multi-axle vehicles typically employ a balanced suspension configuration to ensure equal vertical loads on the wheels of the intermediate and rear axles. The car is at the driving in-process for the road surface jolts, makes the car shock load increase in the twinkling of an eye, and the performance requirement to balanced suspension assembly this moment is higher, in the balanced suspension assembly of using at present, sets up bearing or copper sheathing or nylon cover between leaf spring seat and the balanced axle, because of nylon cover intensity or buffering effect are too poor, the off tracking that weares and teares easily for long-term friction between balanced axle and the support, balanced axle is extremely easy to break. The copper bush or the bearing needs grease and gear oil lubrication, and also needs to be provided with loss parts such as an oil seal, so that maintenance work such as grease addition and gear oil lubrication or oil seal replacement is frequently required, and the workload is large.
Disclosure of Invention
The utility model aims at providing an exempt from to maintain balanced suspension assembly, its simple structure can improve the life of balanced axle greatly, reduces balanced suspension's maintenance frequency simultaneously.
The utility model provides a technical problem can adopt following technical scheme to realize:
a maintenance-free balanced suspension assembly comprises a support, a connecting shaft, a balancing shaft and a plate spring seat, wherein the support is fixedly arranged at two ends of the connecting shaft, the balancing shaft and the support are fixed in a tight fit manner, and the plate spring seat is sleeved on the part of the balancing shaft, which is exposed out of the support;
a rubber sleeve is arranged between the plate spring seat and the balance shaft and consists of a sleeve and a side retaining ring, a supporting steel pipe is embedded in the position, close to an inner ring, of the sleeve, and a steel plate is embedded in the side retaining ring; the two ends of the plate spring seat are respectively provided with the rubber sleeves, and the sleeves of the two rubber sleeves are oppositely sleeved in the plate spring seat, and a gap is reserved between the sleeves; an end cover is arranged at the outer side end of the balance shaft and used for pressing the rubber sleeve and the plate spring seat on the support.
Preferably, the rubber sleeve is made of a polyurethane material.
Preferably, the steel plates have three layers and are annular plates, two layers of the steel plates are close to two ends of the side check ring, and the other layer of the steel plates is arranged in the middle of the side check ring.
Preferably, the support steel pipe and the steel plate are provided with holes.
Preferably, a gasket is arranged between the rubber sleeve close to the inner side and the bracket.
Preferably, a step is arranged on the front end face of the balance shaft.
Preferably, the end cover is boss-shaped, is provided with a boss which is locked and fixed with the balance shaft, and is also provided with a side retaining ring with a cover edge tightly attached to the rubber sleeve.
Compared with the prior art, the utility model beneficial effect be:
1. the polyurethane rubber sleeve is adopted to replace the existing bearing, copper sleeve or nylon sleeve, the pressing force on the plate spring seat is increased by utilizing the compression and expansion performance of polyurethane, the impact force on the balance shaft is reduced, and the service life of the balance shaft is greatly prolonged; the polyurethane has strong rigidity, good stability and long service life;
2. the steel pipe is embedded in the rubber sleeve, so that the strength of the rubber sleeve is enhanced, and meanwhile, the steel pipe is embedded at a position close to the balance shaft, so that the rubber sleeve has a larger expansion space towards the direction of the plate spring seat, the rubber sleeve is more tightly attached, the rubber sleeve and the plate spring seat cannot rotate relatively during working, the rubber sleeve and the balance shaft rotate relatively, the rubber sleeve can play a better buffering role on the balance shaft, and the service lives of the balance shaft and the rubber sleeve are prolonged;
3. the steel plate is arranged in the rubber sleeve, so that the plate spring seat can be well pressed, the relative sliding of the plate spring seat and the rubber sleeve is avoided, the strength of the rubber sleeve can be enhanced, and the service life of the rubber sleeve is prolonged;
4. the polyurethane rubber sleeve is adopted to replace the existing bearing or sleeve, an oil seal is not required to be installed, grease is not required to be beaten on duty or gear oil lubrication is not required to be added on duty, the maintenance work is avoided, the maintenance frequency is greatly reduced, the labor intensity is reduced, and the damage to the suspension caused by disassembly and assembly is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the present invention.
Fig. 3 is a partial cross-sectional view of the present invention.
Fig. 4 is a schematic cross-sectional view of the gum cover.
In the figure, a support 1, a connecting shaft 2, a balance shaft 3, a plate spring seat 4, a rubber sleeve 5, a gasket 6, an end cover 7, a step 31, a sleeve 51, a side retainer ring 52 and a side retainer ring 53 support steel pipes, a steel plate 54, a boss 71 and a cover 72.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Fig. 1-4 are the preferred scheme of the utility model, balanced suspension includes support 1, connecting axle 2, balance shaft 3 and leaf spring seat 4, and support 1 is fixed to be set up at the both ends of connecting axle 2, and balance shaft 3 is fixed through the tight fit with support 1, and the preceding terminal surface of balance shaft 3 is equipped with a step 31, and the external diameter of step 31 is greater than the internal diameter of the balance shaft mounting hole (not shown in the figure) of support 1, prevents that balance shaft 3 from deviating from support 1, and leaf spring seat 4 covers is established on balance shaft 3 exposes the part of support 1.
A rubber sleeve 5 is arranged between the plate spring seat 4 and the balance shaft 3, the rubber sleeve 5 is made of a polyurethane material, the rubber sleeve 5 is composed of a sleeve 51 and a side retaining ring 52, a supporting steel pipe 53 is pre-embedded in the position, close to an inner ring, of the sleeve 51 so as to enhance the strength of the rubber sleeve 5, a plurality of steel plates 54 are pre-embedded in the side retaining ring 52, the number of layers of the steel plates 54 is designed according to the thickness of the side retaining ring 52, three layers of steel plates 54 are pre-embedded in the embodiment, the steel plates 54 are annular plates, two layers of the steel plates 54 are close to two ends of the side retaining ring 52, and the other layer is located in the middle of the side retaining ring 52. The supporting steel pipes 53 and the steel plates 54 are pre-embedded in the forming mold cavity of the rubber sleeve 5 and are formed together with polyurethane, and a plurality of small holes (not shown in the figure, the size and the number of the holes are set according to the size of the unfolded surfaces of the steel pipes 53 and the steel plates 54) are formed in the supporting steel pipes 53 and the steel plates 54, so that the supporting steel pipes 53 and the steel plates 54 can be better and firmer wrapped by the polyurethane during forming.
The two ends of the plate spring seat 4 are respectively provided with a rubber sleeve 5, which is respectively defined as a rubber sleeve 5a and a rubber sleeve 5b, the rubber sleeves 5a and the rubber sleeves 5b are oppositely arranged (namely, the sleeves 51 of the two rubber sleeves 5 are respectively sleeved in the two ends of the plate spring seat 4, the two side retaining rings 52 are respectively clamped on the two end faces of the plate spring seat 4), and a gap is left between the two sleeves 51 of the rubber sleeves 5a and the rubber sleeves 5b, namely, the reserved compression amount. The rubber sleeve 5a is close to the bracket 1, and a gasket 6 is arranged between the rubber sleeve and the bracket 1; the rubber sleeve 5b is arranged at the outer side end of the balance shaft 3, the outer side end of the balance shaft 3 is provided with an end cover 7, the end cover 7 is in a boss shape, the boss 71 and the balance shaft 3 are locked and fixed by a bolt, and the cover edge 72 is tightly attached to the outer end of the side baffle ring 52 of the rubber sleeve 5b to tightly press the rubber sleeve 5 and the plate spring seat 4 on the support 1. Because the steel plate 54 is arranged in the side retainer ring 52 of the rubber sleeve 5, the plate spring seat 4 can be better pressed.
After installation, under the pressing force of the end cover 7, the rubber sleeve 5 expands, the inner ring of the rubber sleeve 5 is provided with the supporting steel pipe 53, the expansion amount of the outer ring is larger than that of the inner ring after compression, so the friction force between the outer ring and the plate spring seat 4 is large, the plate spring seat 4 and the rubber sleeve 5 are relatively static during work, the balance shaft 3 and the rubber sleeve 5 move relatively, the polyurethane rubber sleeve 5 plays a role in buffering after the plate spring seat 4 is stressed to impact the balance shaft 3, the impact load on the balance shaft 3 is reduced or reduced, and the balance shaft 3 is prevented from being broken.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still belong to the protection scope of the present invention.
Claims (7)
1. A maintenance-free balanced suspension assembly comprises a support, a connecting shaft, a balancing shaft and a plate spring seat, wherein the support is fixedly arranged at two ends of the connecting shaft, the balancing shaft and the support are fixed in a tight fit manner, and the plate spring seat is sleeved on a part of the balancing shaft, which is exposed out of the support;
the method is characterized in that: a rubber sleeve is arranged between the plate spring seat and the balance shaft and consists of a sleeve and a side retaining ring, a supporting steel pipe is embedded in the position, close to an inner ring, of the sleeve, and a steel plate is embedded in the side retaining ring; the rubber sleeves are arranged at two ends of the plate spring seat, sleeves of the two rubber sleeves are oppositely sleeved in the plate spring seat, and a gap is reserved between the sleeves; an end cover is arranged at the outer side end of the balance shaft and tightly presses the rubber sleeve and the plate spring seat on the support.
2. The maintenance-free balanced suspension assembly of claim 1, wherein: the rubber sleeve is made of polyurethane materials.
3. The maintenance-free balanced suspension assembly of claim 1, wherein: the steel sheet has the three-layer, is the annular plate, wherein two-layer the steel sheet is close to the both ends of side retaining ring, and another layer the steel sheet is established the middle part position of side retaining ring.
4. The maintenance-free balanced suspension assembly of claim 1, wherein: the supporting steel pipes and the steel plates are provided with holes.
5. The maintenance-free balanced suspension assembly of claim 1, wherein: and a gasket is arranged between the rubber sleeve close to the inner side and the bracket.
6. The maintenance-free balanced suspension assembly of claim 1, wherein: the front end face of the balance shaft is provided with a step.
7. The maintenance-free balanced suspension assembly of claim 1, wherein: the end cover is in a boss shape, is provided with a boss and is locked and fixed with the balance shaft, and is also provided with a side retaining ring with a cover edge clinging to the rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221441155.5U CN217753398U (en) | 2022-06-10 | 2022-06-10 | Maintenance-free balanced suspension assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221441155.5U CN217753398U (en) | 2022-06-10 | 2022-06-10 | Maintenance-free balanced suspension assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217753398U true CN217753398U (en) | 2022-11-08 |
Family
ID=83891835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221441155.5U Active CN217753398U (en) | 2022-06-10 | 2022-06-10 | Maintenance-free balanced suspension assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217753398U (en) |
-
2022
- 2022-06-10 CN CN202221441155.5U patent/CN217753398U/en active Active
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