CN113958636A - Hydro-pneumatic suspension composite guide sleeve - Google Patents
Hydro-pneumatic suspension composite guide sleeve Download PDFInfo
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- CN113958636A CN113958636A CN202111257413.4A CN202111257413A CN113958636A CN 113958636 A CN113958636 A CN 113958636A CN 202111257413 A CN202111257413 A CN 202111257413A CN 113958636 A CN113958636 A CN 113958636A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
- B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
- B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/24—Fluid damper
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses an oil-gas suspension composite guide sleeve, and belongs to the technical field of oil-gas composite elastic suspension devices. The oil-gas composite guide device is characterized by comprising an oil-gas composite guide device, wherein the oil-gas composite guide device comprises an oil-gas composite piston cylinder, a cylinder piston and an oil cylinder piston, the upper end of the oil-gas composite piston cylinder is fixed on a first mounting plate, and the lower end of the oil-gas composite piston cylinder is fixed on a second mounting plate; the middle part of the oil-gas composite piston cylinder is provided with an elastic diaphragm which divides the interior of the oil-gas composite piston cylinder into a cylinder cavity and an oil cylinder cavity which are not communicated with each other; the upper end of the oil-gas composite piston cylinder is inserted with a cylinder piston, and the cylinder piston is hermetically inserted into a cylinder cavity; the lower end of the oil-gas composite piston cylinder is inserted with an oil cylinder piston, and the oil cylinder piston is hermetically inserted into an oil cylinder cavity; the cylinder piston and the oil cylinder piston are connected and interacted through a linkage device.
Description
Technical Field
The invention belongs to the technical field of hydro-pneumatic composite elastic suspension devices, and particularly relates to a hydro-pneumatic suspension composite guide sleeve assembly.
Background
Hydro-pneumatic suspensions are important elastic buffer parts of heavy vehicles, when the vehicles are loaded with heavy loads, the elastic buffer capacity directly influences the running stability and comfort of the vehicles, and hydro-pneumatic suspension components with insufficient quality or performance can also influence the running safety of the vehicles. The traditional oil-gas suspension has many problems, such as that an oil-gas buffer system operates relatively independently, and the synergistic effect cannot be realized. In addition, the damping effect of the vehicle is intensively reflected in a single-wheel local area, the whole vehicle linkage shock absorption cannot be realized, and severe accidents such as side turning and the like are easy to occur when strong shock is suddenly encountered.
In view of this, the applicant designs an oil gas suspension composite guide sleeve, can solve the technical problem, makes pneumatic shock absorption and oil pressure shock absorption coordinate the linkage, promotes vehicle operation's stationarity and security. In addition, the device can also realize four-wheel linkage shock absorption of the whole vehicle, and further guarantee the driving safety.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the oil-gas suspension composite guide sleeve, which can enable pneumatic shock absorption and oil pressure shock absorption to be cooperatively linked, and improve the running stability and safety of a vehicle. In addition, the device can also realize four-wheel linkage shock absorption of the whole vehicle, and further guarantee the driving safety.
In order to solve the technical problems, the technical scheme of the invention is as follows: the oil-gas suspension composite guide sleeve is characterized by comprising an oil-gas composite guide device, wherein the oil-gas composite guide device comprises an oil-gas composite piston cylinder, a cylinder piston and an oil cylinder piston, the upper end of the oil-gas composite piston cylinder is fixed on a first mounting plate, and the lower end of the oil-gas composite piston cylinder is fixed on a second mounting plate; the middle part of the oil-gas composite piston cylinder is provided with an elastic diaphragm which divides the interior of the oil-gas composite piston cylinder into a cylinder cavity and an oil cylinder cavity which are not communicated with each other; the upper end of the oil-gas composite piston cylinder is inserted with a cylinder piston, and the cylinder piston is hermetically inserted into a cylinder cavity; the lower end of the oil-gas composite piston cylinder is inserted with an oil cylinder piston, and the oil cylinder piston is hermetically inserted into an oil cylinder cavity; the cylinder piston and the oil cylinder piston are connected and interacted through a linkage device.
Preferably, the side wall of the cylinder cavity of the oil-gas composite piston cylinder is provided with an air outlet hole, and an air outlet pipe is inserted into the air outlet hole.
Preferably, an oil filling hole is formed in the side wall of the oil cylinder cavity of the oil-gas composite piston cylinder.
Preferably, the oil cylinder piston comprises a piston body and a piston rod, the piston body is mounted at the front end of the piston rod, an oil return containing groove is formed in the piston rod, three communicating holes are formed in the piston body, the upper ends of the three communicating holes are communicated with the oil cylinder cavity, and the lower ends of the three communicating holes are communicated with the oil return containing groove; one of the two holes is a fixed damping hole, and a compression valve and an expansion valve are respectively arranged in the other two communicating holes.
Preferably, the piston rod is sleeved with a return spring, the upper end of the return spring abuts against the lower annular surface of the piston body, and the lower end of the return spring abuts against the lower inner annular surface of the oil cylinder cavity.
Preferably, a floating piston is arranged in the oil return containing groove, a sealed air chamber is arranged below the floating piston, and inert gas is filled into the air chamber.
Preferably, the linkage device comprises a linkage cross rod, and the middle part of the linkage cross rod is connected with the upper end of the cylinder piston; the linkage cross rod is transversely arranged, and a first linkage longitudinal rod and a second linkage longitudinal rod are respectively and vertically connected to two ends of the linkage cross rod; a first longitudinal rod upper jack and a second longitudinal rod upper jack are respectively arranged on the left side and the right side of the first mounting plate, and a first longitudinal rod lower jack and a second longitudinal rod lower jack are respectively arranged on the left side and the right side of the second mounting plate; the lower end of the first linkage longitudinal rod sequentially penetrates through the first longitudinal rod upper insertion hole and the first longitudinal rod lower insertion hole downwards and then is hinged to the upper end of the first telescopic lever structure, and the lower end of the first telescopic lever structure is hinged to the lower end of the oil cylinder piston; the lower end of the second linkage longitudinal rod sequentially penetrates through a second longitudinal rod upper insertion hole and a second longitudinal rod lower insertion hole downwards and then is hinged with the upper end of a second telescopic lever structure, and the lower end of the second telescopic lever structure is hinged with the lower end of the oil cylinder piston;
the first linkage longitudinal rod and the second linkage longitudinal rod between the first mounting plate and the second mounting plate are respectively provided with a first spring baffle and a second spring baffle, the first linkage longitudinal rod between the first spring baffle and the second mounting plate is sleeved with a first spring, and the second linkage longitudinal rod between the second spring baffle and the second mounting plate is sleeved with a second spring.
Preferably, the first telescopic lever structure comprises a first telescopic lever and a first hinge shaft, a first lever chute is formed in the first telescopic lever, a first lever slide block is arranged in the first lever chute, the first lever slide block is hinged to the lower end of a first lever slide block supporting arm, and the upper end of the first lever slide block supporting arm is fixed on the second mounting plate; the second telescopic lever structure comprises a second telescopic lever and a second hinge shaft, a second lever chute is formed in the second telescopic lever, a second lever sliding block is arranged in the second lever chute, the second lever sliding block is hinged to the lower end of a second lever sliding block supporting arm, and the upper end of the second lever sliding block supporting arm is fixed on the second mounting plate.
Preferably, the number of the oil-gas composite guiding devices is four, and the oil-gas composite guiding devices are respectively a front left composite guiding device, a front right composite guiding device, a rear left composite guiding device and a rear right composite guiding device; the front left composite guide device, the front right composite guide device, the rear left composite guide device and the rear right composite guide device are respectively arranged on a front left wheel shaft, a front right wheel shaft, a rear left wheel shaft and a rear right wheel shaft of the vehicle; the air outlet pipes of the front left composite guide device, the front right composite guide device, the rear left composite guide device and the rear right composite guide device are respectively a front left air outlet pipe, a front right air outlet pipe, a rear left air outlet pipe and a rear right air outlet pipe; the pneumatic linkage air pressure distribution device comprises a pneumatic linkage air pressure distribution main chamber, a pneumatic linkage air pressure distribution main chamber and a pneumatic linkage air pressure distribution main chamber, wherein the pneumatic linkage air pressure distribution main chamber comprises a first linkage cavity and a second linkage cavity;
the front left air outlet pipe is hermetically inserted in the air inlet of the front left linkage air cavity, the front right air outlet pipe is hermetically inserted in the air inlet of the front right linkage air cavity, the rear left air outlet pipe is hermetically inserted in the air inlet of the rear left linkage air cavity, and the rear right air outlet pipe is hermetically inserted in the air inlet of the rear right linkage air cavity.
Preferably, a front left spring is arranged between the front left air outlet pipe and the first linkage piston plate, and a rear right spring is arranged between the rear right air outlet pipe and the first linkage piston plate; a front right spring is arranged between the front right air outlet pipe and the second linkage piston plate, and a rear left spring is arranged between the rear left air outlet pipe and the second linkage piston plate.
Compared with the prior art, the invention has the beneficial effects that:
the invention can realize the cooperative linkage of pneumatic shock absorption and oil pressure shock absorption, and improve the running stability and safety of the vehicle. In addition, the device can also realize four-wheel linkage shock absorption of the whole vehicle, and further guarantee the driving safety.
Drawings
FIG. 1 is a schematic structural view of an oil and gas composite guide device of the present invention;
FIG. 2 is a schematic view of the mounting positions and interconnection structures of the front left composite guide device, the front right composite guide device, the rear left composite guide device, the rear right composite guide device and the linkage air pressure distribution total chamber on the vehicle;
FIG. 3 is a schematic view of the structure of a linkage air pressure distribution manifold;
the labels in the figure are:
1. a first linkage longitudinal rod; 2. an upper jack of the first longitudinal rod; 3. an elastic diaphragm; 4. a cylinder chamber; 5. a compression valve; 6. a first spring retainer; 7. a piston body; 8. a first spring; 9. a return spring; 10. an oil return containing groove; 11. a second mounting plate; 12. a first vertical rod lower jack; 13. a first telescopic lever; 14. a first lever slider support arm; 15. a first lever slider; 16. a first lever chute; 17. an air chamber; 18. a cylinder piston; 19. a floating piston; 20. a second lever chute; 22. a second lever slider; 23. a second telescopic lever; 24. a piston rod; 25. a second vertical rod lower jack; 26. a valve is extended; 27. a second spring; 28. a second spring retainer; 29. fixing the damping hole; 30. an air outlet pipe; 31. an upper jack of the second longitudinal rod; 32. a second linkage longitudinal bar; 33. an air outlet; 34. a cylinder cavity; 35. a cylinder piston; 36. a linkage cross bar; 37. a linkage air pressure distribution main chamber; 38. a rear left compound guide device; 39. a rear left outlet duct; 40. a rear right outlet duct; 41. a rear right composite guide device; 42. a front and right compound guide device; 43. a front right air outlet pipe; 44. a front-left compound guide; 45. a front left outlet duct; 46. a rear right linkage air cavity; 47. a rear right spring; 48. a first linked piston plate; 49. a front left spring; 50. a front left linkage air cavity; 51. a front-right linkage air cavity; 52. a front right spring; 53. a second linkage piston plate; 54. a rear left spring; 55. the back and the right are linked with the air cavity.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1, the hydro-pneumatic suspension composite guide sleeve comprises a hydro-pneumatic composite guide device, wherein the hydro-pneumatic composite guide device comprises a hydro-pneumatic composite piston cylinder, a cylinder piston and a cylinder piston, the upper end of the hydro-pneumatic composite piston cylinder is fixed on a first mounting plate, and the lower end of the hydro-pneumatic composite piston cylinder is fixed on a second mounting plate; the middle part of the oil-gas composite piston cylinder is provided with an elastic diaphragm which divides the interior of the oil-gas composite piston cylinder into a cylinder cavity and an oil cylinder cavity which are not communicated with each other; the upper end of the oil-gas composite piston cylinder is inserted with a cylinder piston, and the cylinder piston is hermetically inserted into a cylinder cavity; the lower end of the oil-gas composite piston cylinder is inserted with an oil cylinder piston, and the oil cylinder piston is hermetically inserted into an oil cylinder cavity; the cylinder piston and the oil cylinder piston are connected and interacted through a linkage device.
An air outlet hole is arranged on the side wall of the cylinder cavity of the oil-gas composite piston cylinder, and an air outlet pipe is inserted in the air outlet hole.
An oil filling hole is arranged on the side wall of the oil cylinder cavity of the oil-gas composite piston cylinder.
The oil cylinder piston comprises a piston body and a piston rod, the front end of the piston rod is provided with the piston body, an oil return containing groove is formed in the piston rod, three communicating holes are formed in the piston body, the upper ends of the three communicating holes are communicated with the oil cylinder cavity, and the lower ends of the three communicating holes are communicated with the oil return containing groove; one of the two holes is a fixed damping hole, and a compression valve and an expansion valve are respectively arranged in the other two communicating holes.
The piston rod is sleeved with a return spring, the upper end of the return spring abuts against the lower annular surface of the piston body, and the lower end of the return spring abuts against the lower inner annular surface of the oil cylinder cavity.
A floating piston is arranged in the oil return containing groove, a sealed air chamber is arranged below the floating piston, and inert gas is filled into the air chamber.
The linkage device comprises a linkage cross rod, and the middle part of the linkage cross rod is connected with the upper end of the cylinder piston; the linkage cross rod is transversely arranged, and a first linkage longitudinal rod and a second linkage longitudinal rod are respectively and vertically connected to two ends of the linkage cross rod; a first longitudinal rod upper jack and a second longitudinal rod upper jack are respectively arranged on the left side and the right side of the first mounting plate, and a first longitudinal rod lower jack and a second longitudinal rod lower jack are respectively arranged on the left side and the right side of the second mounting plate; the lower end of the first linkage longitudinal rod sequentially penetrates through the first longitudinal rod upper insertion hole and the first longitudinal rod lower insertion hole downwards and then is hinged to the upper end of the first telescopic lever structure, and the lower end of the first telescopic lever structure is hinged to the lower end of the oil cylinder piston; the lower end of the second linkage longitudinal rod sequentially penetrates through the second longitudinal rod upper insertion hole and the second longitudinal rod lower insertion hole downwards and then is hinged with the upper end of a second telescopic lever structure, and the lower end of the second telescopic lever structure is hinged with the lower end of the oil cylinder piston.
The first linkage longitudinal rod and the second linkage longitudinal rod between the first mounting plate and the second mounting plate are respectively provided with a first spring baffle and a second spring baffle, the first linkage longitudinal rod between the first spring baffle and the second mounting plate is sleeved with a first spring, and the second linkage longitudinal rod between the second spring baffle and the second mounting plate is sleeved with a second spring.
The first telescopic lever structure comprises a first telescopic lever and a first hinge shaft, a first lever chute is formed in the first telescopic lever, a first lever slide block is arranged in the first lever chute, the first lever slide block is hinged to the lower end of a first lever slide block supporting arm, and the upper end of the first lever slide block supporting arm is fixed on the second mounting plate; the second telescopic lever structure comprises a second telescopic lever and a second hinge shaft, a second lever chute is formed in the second telescopic lever, a second lever sliding block is arranged in the second lever chute, the second lever sliding block is hinged to the lower end of a second lever sliding block supporting arm, and the upper end of the second lever sliding block supporting arm is fixed on the second mounting plate.
When the hydraulic cylinder is actually used, the first mounting plate and the second mounting plate can be fixed at the bottom of the frame, and the lower end of the cylinder piston is mounted on a wheel shaft of a vehicle. When wheels of a vehicle bump in the running process, an oil cylinder piston is impacted firstly and moves towards an oil cylinder cavity, and the impact force penetrates through the oil cylinder cavity and an elastic diaphragm and is led to the air cylinder cavity; meanwhile, the oil cylinder piston also drives the lower ends of the first telescopic lever and the second telescopic lever to move upwards, the upper ends of the first telescopic lever and the second telescopic lever respectively rotate around the first lever slide block and the second lever slide block to move downwards and contract, the first linkage longitudinal rod, the second linkage longitudinal rod and the linkage transverse rod are driven to move downwards, and then the air cylinder piston is pressed downwards into the air cylinder cavity; the gas in the cylinder cavity is impacted by the upper and lower sides, and the impact force is absorbed by compressing the volume of the gas in the cylinder cavity. In this embodiment, the air outlet hole in the cylinder cavity can be in a normally closed state or a pressure switch valve is installed. When the vehicle runs normally, the impact force can be absorbed and buffered by compressed gas; when the impact force is large, the oil body in the oil cylinder cavity can enter the oil return containing groove through the compression valve and the fixed damping hole, and the returned oil body can downwards extrude the floating piston to further compress the gas in the air chamber, so that the impact force is absorbed. When the load or impact force is reduced, the floating piston moves upwards under the driving force of compressed gas in the air chamber, and oil is forced to flow back to the oil cylinder cavity through the extension valve and the fixed damping hole. When the impact force exceeds the limit range, the pressure switch valve can be forced to open, instantaneous exhaust is realized, and the shock absorption system is prevented from being damaged.
Example two
As shown in fig. 2 and 3, in the present embodiment, the number of the oil-gas composite guiding devices is four, which are respectively a front left composite guiding device, a front right composite guiding device, a rear left composite guiding device and a rear right composite guiding device; the front left composite guide device, the front right composite guide device, the rear left composite guide device and the rear right composite guide device are respectively arranged on a front left wheel shaft, a front right wheel shaft, a rear left wheel shaft and a rear right wheel shaft of the vehicle; the air outlet pipes of the front left composite guide device, the front right composite guide device, the rear left composite guide device and the rear right composite guide device are respectively a front left air outlet pipe, a front right air outlet pipe, a rear left air outlet pipe and a rear right air outlet pipe; the pneumatic distribution device is characterized by further comprising a linkage pneumatic distribution main chamber, wherein the linkage pneumatic distribution main chamber comprises a first linkage cavity and a second linkage cavity, a first linkage piston plate and a second linkage piston plate are arranged in the first linkage cavity and the second linkage cavity respectively, the first linkage cavity is divided into a front left linkage air cavity and a rear right linkage air cavity by the first linkage piston plate, and the second linkage cavity is divided into a front right linkage air cavity and a rear left linkage air cavity by the second linkage piston plate.
The front left air outlet pipe is hermetically inserted in the air inlet of the front left linkage air cavity, the front right air outlet pipe is hermetically inserted in the air inlet of the front right linkage air cavity, the rear left air outlet pipe is hermetically inserted in the air inlet of the rear left linkage air cavity, and the rear right air outlet pipe is hermetically inserted in the air inlet of the rear right linkage air cavity.
A front left spring is arranged between the front left air outlet pipe and the first linkage piston plate, and a rear right spring is arranged between the rear right air outlet pipe and the first linkage piston plate; a front right spring is arranged between the front right air outlet pipe and the second linkage piston plate, and a rear left spring is arranged between the rear left air outlet pipe and the second linkage piston plate.
The embodiment can balance the instantaneous shock resistance of the front and rear four wheels of the vehicle, for example, when the front left wheel axle is impacted, the gas in the cylinder cavity of the front left composite guide device can enter the front left linkage air cavity from the left front air outlet pipe and push the first linkage piston plate to move towards the rear right linkage air cavity, and the shock resistance and the buffer stroke of the front left wheel are enhanced for a short time by sacrificing part of the shock resistance of the rear left composite guide device. Therefore, when wheels at different positions suddenly encounter impact, the stress capacity can be improved in a large range, and the condition of rollover or buffer failure is avoided.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and any person skilled in the art may make any combination, change or modification of the above-described embodiments using the technical content disclosed in the above description. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. An oil-gas suspension composite guide sleeve is characterized by comprising an oil-gas composite guide device, wherein the oil-gas composite guide device comprises an oil-gas composite piston cylinder, a cylinder piston and a cylinder piston, the upper end of the oil-gas composite piston cylinder is fixed on a first mounting plate, and the lower end of the oil-gas composite piston cylinder is fixed on a second mounting plate; the middle part of the oil-gas composite piston cylinder is provided with an elastic diaphragm which divides the interior of the oil-gas composite piston cylinder into a cylinder cavity and an oil cylinder cavity which are not communicated with each other; the upper end of the oil-gas composite piston cylinder is inserted with a cylinder piston, and the cylinder piston is hermetically inserted into a cylinder cavity; the lower end of the oil-gas composite piston cylinder is inserted with an oil cylinder piston, and the oil cylinder piston is hermetically inserted into an oil cylinder cavity; the cylinder piston and the oil cylinder piston are connected and interacted through a linkage device.
2. The hydro-pneumatic suspension composite guide sleeve as defined in claim 1, wherein: an air outlet hole is arranged on the side wall of the cylinder cavity of the oil-gas composite piston cylinder, and an air outlet pipe is inserted in the air outlet hole.
3. The hydro-pneumatic suspension composite guide sleeve as defined in claim 2, wherein: an oil filling hole is arranged on the side wall of the oil cylinder cavity of the oil-gas composite piston cylinder.
4. The hydro-pneumatic suspension composite guide sleeve as defined by claim 3 wherein: the oil cylinder piston comprises a piston body and a piston rod, the front end of the piston rod is provided with the piston body, an oil return containing groove is formed in the piston rod, three communicating holes are formed in the piston body, the upper ends of the three communicating holes are communicated with the oil cylinder cavity, and the lower ends of the three communicating holes are communicated with the oil return containing groove; one of the two holes is a fixed damping hole, and a compression valve and an expansion valve are respectively arranged in the other two communicating holes.
5. The hydro-pneumatic suspension composite guide sleeve as defined in claim 4, wherein: the piston rod is sleeved with a return spring, the upper end of the return spring abuts against the lower annular surface of the piston body, and the lower end of the return spring abuts against the lower inner annular surface of the oil cylinder cavity.
6. The hydro-pneumatic suspension composite guide sleeve as defined in claim 5, wherein: a floating piston is arranged in the oil return containing groove, a sealed air chamber is arranged below the floating piston, and inert gas is filled into the air chamber.
7. The hydro-pneumatic suspension composite guide sleeve as defined in claim 6, wherein: the linkage device comprises a linkage cross rod, and the middle part of the linkage cross rod is connected with the upper end of the cylinder piston; the linkage cross rod is transversely arranged, and a first linkage longitudinal rod and a second linkage longitudinal rod are respectively and vertically connected to two ends of the linkage cross rod; a first longitudinal rod upper jack and a second longitudinal rod upper jack are respectively arranged on the left side and the right side of the first mounting plate, and a first longitudinal rod lower jack and a second longitudinal rod lower jack are respectively arranged on the left side and the right side of the second mounting plate; the lower end of the first linkage longitudinal rod sequentially penetrates through the first longitudinal rod upper insertion hole and the first longitudinal rod lower insertion hole downwards and then is hinged to the upper end of the first telescopic lever structure, and the lower end of the first telescopic lever structure is hinged to the lower end of the oil cylinder piston; the lower end of the second linkage longitudinal rod sequentially penetrates through a second longitudinal rod upper insertion hole and a second longitudinal rod lower insertion hole downwards and then is hinged with the upper end of a second telescopic lever structure, and the lower end of the second telescopic lever structure is hinged with the lower end of the oil cylinder piston;
the first linkage longitudinal rod and the second linkage longitudinal rod between the first mounting plate and the second mounting plate are respectively provided with a first spring baffle and a second spring baffle, the first linkage longitudinal rod between the first spring baffle and the second mounting plate is sleeved with a first spring, and the second linkage longitudinal rod between the second spring baffle and the second mounting plate is sleeved with a second spring.
8. The hydro-pneumatic suspension composite guide sleeve as defined in claim 7, wherein: the first telescopic lever structure comprises a first telescopic lever and a first hinge shaft, a first lever chute is formed in the first telescopic lever, a first lever slide block is arranged in the first lever chute, the first lever slide block is hinged to the lower end of a first lever slide block supporting arm, and the upper end of the first lever slide block supporting arm is fixed on the second mounting plate; the second telescopic lever structure comprises a second telescopic lever and a second hinge shaft, a second lever chute is formed in the second telescopic lever, a second lever sliding block is arranged in the second lever chute, the second lever sliding block is hinged to the lower end of a second lever sliding block supporting arm, and the upper end of the second lever sliding block supporting arm is fixed on the second mounting plate.
9. The hydro-pneumatic suspension composite guide sleeve as defined in claim 8, wherein: the number of the oil-gas composite guiding devices is four, and the oil-gas composite guiding devices are respectively a front left composite guiding device, a front right composite guiding device, a rear left composite guiding device and a rear right composite guiding device; the front left composite guide device, the front right composite guide device, the rear left composite guide device and the rear right composite guide device are respectively arranged on a front left wheel shaft, a front right wheel shaft, a rear left wheel shaft and a rear right wheel shaft of the vehicle; the air outlet pipes of the front left composite guide device, the front right composite guide device, the rear left composite guide device and the rear right composite guide device are respectively a front left air outlet pipe, a front right air outlet pipe, a rear left air outlet pipe and a rear right air outlet pipe; the pneumatic linkage air pressure distribution device comprises a pneumatic linkage air pressure distribution main chamber, a pneumatic linkage air pressure distribution main chamber and a pneumatic linkage air pressure distribution main chamber, wherein the pneumatic linkage air pressure distribution main chamber comprises a first linkage cavity and a second linkage cavity;
the front left air outlet pipe is hermetically inserted in the air inlet of the front left linkage air cavity, the front right air outlet pipe is hermetically inserted in the air inlet of the front right linkage air cavity, the rear left air outlet pipe is hermetically inserted in the air inlet of the rear left linkage air cavity, and the rear right air outlet pipe is hermetically inserted in the air inlet of the rear right linkage air cavity.
10. The hydro-pneumatic suspension composite guide sleeve as defined in claim 9 wherein: a front left spring is arranged between the front left air outlet pipe and the first linkage piston plate, and a rear right spring is arranged between the rear right air outlet pipe and the first linkage piston plate; a front right spring is arranged between the front right air outlet pipe and the second linkage piston plate, and a rear left spring is arranged between the rear left air outlet pipe and the second linkage piston plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111257413.4A CN113958636B (en) | 2021-10-27 | 2021-10-27 | Composite guide sleeve for hydro-pneumatic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111257413.4A CN113958636B (en) | 2021-10-27 | 2021-10-27 | Composite guide sleeve for hydro-pneumatic suspension |
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| Publication Number | Publication Date |
|---|---|
| CN113958636A true CN113958636A (en) | 2022-01-21 |
| CN113958636B CN113958636B (en) | 2023-05-16 |
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| CN202111257413.4A Active CN113958636B (en) | 2021-10-27 | 2021-10-27 | Composite guide sleeve for hydro-pneumatic suspension |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687187A (en) * | 1984-07-05 | 1987-08-18 | Silvano Bellapadrona | Oleopneumatic suspension for vehicles, suitable in particular for motorcycles |
| SU1749576A2 (en) * | 1990-10-30 | 1992-07-23 | Войсковая часть 63539 | Hydraulic and pneumatic spring |
| CN103775555A (en) * | 2012-10-23 | 2014-05-07 | 长春孔辉汽车科技有限公司 | Push rod type stiffness stepless adjustment hydro-pneumatic spring |
| CN104047987A (en) * | 2014-06-18 | 2014-09-17 | 江苏大学 | Novel hydro-pneumatic spring |
| CN105179554A (en) * | 2015-10-16 | 2015-12-23 | 厦门铠睿智能科技有限公司 | Novel mixed connected type oil gas damping device with double gas chambers |
| CN108547907A (en) * | 2018-07-09 | 2018-09-18 | 阮忠诚 | A kind of damper for electric vehicle |
| CN110206842A (en) * | 2019-06-06 | 2019-09-06 | 苗军 | A kind of single cylinder cylinder double chamber hydragas spring |
| CN110296175A (en) * | 2019-07-19 | 2019-10-01 | 娄底市中兴液压件有限公司 | Pneumatic cylinder and vehicle |
| CN211231384U (en) * | 2019-11-26 | 2020-08-11 | 济南润祥新材料科技有限公司 | Automobile shock absorption balancer |
-
2021
- 2021-10-27 CN CN202111257413.4A patent/CN113958636B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687187A (en) * | 1984-07-05 | 1987-08-18 | Silvano Bellapadrona | Oleopneumatic suspension for vehicles, suitable in particular for motorcycles |
| SU1749576A2 (en) * | 1990-10-30 | 1992-07-23 | Войсковая часть 63539 | Hydraulic and pneumatic spring |
| CN103775555A (en) * | 2012-10-23 | 2014-05-07 | 长春孔辉汽车科技有限公司 | Push rod type stiffness stepless adjustment hydro-pneumatic spring |
| CN104047987A (en) * | 2014-06-18 | 2014-09-17 | 江苏大学 | Novel hydro-pneumatic spring |
| CN105179554A (en) * | 2015-10-16 | 2015-12-23 | 厦门铠睿智能科技有限公司 | Novel mixed connected type oil gas damping device with double gas chambers |
| CN108547907A (en) * | 2018-07-09 | 2018-09-18 | 阮忠诚 | A kind of damper for electric vehicle |
| CN110206842A (en) * | 2019-06-06 | 2019-09-06 | 苗军 | A kind of single cylinder cylinder double chamber hydragas spring |
| CN110296175A (en) * | 2019-07-19 | 2019-10-01 | 娄底市中兴液压件有限公司 | Pneumatic cylinder and vehicle |
| CN211231384U (en) * | 2019-11-26 | 2020-08-11 | 济南润祥新材料科技有限公司 | Automobile shock absorption balancer |
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| CN113958636B (en) | 2023-05-16 |
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