CN2454171Y - Oil-gas suspension mechanism - Google Patents
Oil-gas suspension mechanism Download PDFInfo
- Publication number
- CN2454171Y CN2454171Y CN 00232541 CN00232541U CN2454171Y CN 2454171 Y CN2454171 Y CN 2454171Y CN 00232541 CN00232541 CN 00232541 CN 00232541 U CN00232541 U CN 00232541U CN 2454171 Y CN2454171 Y CN 2454171Y
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- oil cylinder
- valve
- hanging oil
- shaped frame
- oleo
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Abstract
The utility model relates to an oil-gas suspension mechanism, which is suitable for locking the running and buffering operation of an engineering machine. The utility model is composed of a guide rod system, an elastic element, a damping element, and a control element. The front end of a horizontal U-shaped frame of the oil-gas suspension mechanism is connected with a vehicle frame; the rear part is connected with a suspension oil cylinder; one side of the U-shaped frame is fixedly connected with a vertical rod which is connected to the vehicle frame through a horizontal pull rod connected with the vertical rod; the tail end of the cylinder of the suspension oil cylinder is respectively connected with a vehicle frame, and each connecting point is evenly provided with a connecting structure of a spherical pair. The utility model has the advantages that when running is conducted, the suspension mechanism is opened; the guide rod system can automatically move along with height change of road surfaces, and the running is caused to be smooth. When the operation is conducted, the suspension mechanism is locked, and the vehicle can display the maximum tractive force.
Description
The utility model relates to a kind of shock absorption device that is applicable to power actuated vehicle, especially a kind of oleo-pneumatic suspension mechanism that can be locked again when playing cushioning effect, operation when construction machinery and equipment is run at high speed that is applicable to.
As everyone knows, be provided with shock absorption device on the automobile, modal be between vehicle bridge and vehicle frame the mounting spring steel plate as shock absorption device.And the car weight of construction machinery and equipment is generally all big than automobile, usually at tens tons to tens tons weights, the road surface is uneven and the vibration that causes is not very very big to driver's driver behavior influence when they travel at a slow speed, so at present most of products of construction machinery and equipment all only rely on the elastic shock-absorbing device between operator's compartment and the vehicle frame or the shock absorption device of driver's seat to eliminate the influence of road vibration to the driver, do not use shockproof suspension mechanism.Along with the development of society, the moving velocity of construction machinery and equipment more and more receives publicity.In order to improve construction machinery and equipment fast reserve ability, accelerate transfer velocity, later-model construction machinery and equipment has all improved moving velocity, but for construction machinery and equipment, when speed per hour surpasses 40km/h, when especially reaching 50-55km/h, if do not take suitable glissando, the road surface is uneven and jolting of causing will make the driver be difficult to carry out the pulsation-free driver behavior.And for the construction machinery and equipment of tens tons of car weights, if adopt the shock absorption device of spring plate when travelling, the scantling of structure of this device will design very hugely undoubtedly, and this is difficult to again realize on overall dimension is arranged.Secondly, spring plate bears and pitches all rightly, but should not bear transverse load.Turn to owing to be subjected to the restriction in operation place, construction machinery and equipment often to be designed to pivotally connected frame, so that reduce turn radius as far as possible.But rapid minor-circle turn can produce very big transverse load again, and this will make the spring plate shock absorption device damage easily.Moreover, for construction machinery and equipments such as wheel dozer, loaders, often needing while walking operation, therefore need when operation, suspended shock absorbing mechanism be locked again, so that maximum tractive force or the digging force of mechanical energy performance.If adopt spring plate as shock absorption device, to its design latch-up structure, this will be again very difficult again.
To be exactly that design-calculated is a kind of in order to overcome weak point that above-mentioned prior art exists can satisfy construction machinery and equipment play cushioning effect when running at high speed the purpose of this utility model, and the oleo-pneumatic suspension mechanism that when operation, can be locked.
The purpose of this utility model realizes by following scheme: this oleo-pneumatic suspension mechanism comprises horizontally disposed U-shaped frame, intermediate rod, is connected to two hanging oil cylinder of U-shaped frame rear open end and energy storage, the damped valve that is connected with two hanging oil cylinder respectively, and is arranged on the change-over valve between pipeline; Wherein, U-shaped frame front end center connects to ground, and its two middle side part intersects vertically with vehicle bridge respectively and fastening the connection, is connected with a montant in any side of U-shaped frame, and the montant upper end is connected on the vehicle frame by coupled intermediate rod; The cylinder tail end of described two hanging oil cylinder is connected with vehicle frame respectively, two hanging oil cylinder are communicated with energy storage by change-over valve and damped valve respectively, be connected by pipeline and the change-over valve that is arranged between pipeline between two hanging oil cylinder, and be provided with a shutoff valve on this connecting pipeline, above-mentioned each junction is the spherical pair connection structure.
Elastic medium in hanging oil cylinder described in the utility model and the energy storage is respectively high-voltage oil liquid and high-pressure inert gas, and its principle is to consume the road vibration energy with flowing mutually of elastic medium, makes vehicle at the damping smooth running that travels; Damped valve is combined by flow regulating valve and check valve, and installation direction is that oil can only flow to energy storage by check valve from hanging oil cylinder, and purpose is to prevent that hanging oil cylinder from being sprained bad when piston rod is withdrawn rapidly; Change-over valve can be solenoid directional control valve, also can be hand change over valve; Spherical pair all adopts plain radial bearing; Between vehicle frame and horizontal U-shaped frame, be provided with the elasticity limit element, contact with rigidity between the vehicle frame to avoid rod member.
Because the spatial linkage that guiding leverage of the present utility model is made up of intermediate rod, montant, U-shaped frame, vehicle bridge and hanging oil cylinder, when the road surface is uneven when producing vertical loads or producing transverse load because of turn inside diameter, this spatial linkage can move in the scope of design code, and each rod member of entire mechanism all can produce corresponding sports.Because each rod member is to do space motion,, each rod member all adopt spherical pair to connect (being plain radial bearing) so connecting.Hanging oil cylinder be the component part of guiding leverage be again the component part of elastic element, it forms elastic element with energy storage, absorbs and consumes the vibrational energy of road surface to the construction machinery and equipment generation.When about vehicle bridge, up-and-down movement or when swing, hanging oil cylinder is corresponding stretches out or bounce back, the corresponding release fluid of energy storage makes in the air cavity air pressure descend or is charged into fluid and make air pressure increase in the air cavity.In the hydraulic tubing of connection hanging oil cylinder and energy storage damping element being installed is bumper, and it is combined by flow regulating valve and check valve, can make the very fast decay trend of vibration of vehicle steadily; The installation direction of check valve makes oil to flow to energy storage from hanging oil cylinder, when backing down check valve when the oil liquid pressure rising, fluid flows through check valve and consumed energy, and the effect of flow regulating valve is that oil flow is slowed down, and makes vibrational energy be converted into the heat of oily temperature rise.It is change-over valve and shutoff valve that control element also is installed in this hydraulic tubing, can be by the driver according to travelling or the needs of operation control that hitch is opened or locking.Be flexible connection between vehicle frame and the vehicle bridge under the hitch opening, can play damping effect during vehicle ', engineer machinery operation can be brought into play tractive force limit and digging force under the hitch lock-out state.
Because there are doube bridge or many bridge constructions in the engineering machinery walking system, and oleo-pneumatic suspension mechanism guiding leverage is being installed between a bridge and the vehicle frame at least, also can be installed between each bridge and the vehicle frame.Same construction machinery and equipment is if install oleo-pneumatic suspension mechanism between bridge more than two and vehicle frame, then the parameters such as accumulator volume of the installation site size of the rod member number of their guiding leverage, rod member shape, rod member connection location, hanging oil cylinder, oil cylinder specification and elastic element also should be done corresponding adjustment.
The advantage that the utility model is compared with prior art possessed is: owing to adopt hanging oil cylinder and energy storage as damping, hitch is opened when travelling, the guiding leverage can just change with ground-surface automatically and moves, and absorbs vibrational energy, makes to travel steadily; Hitch locking when operation, vehicle can be brought into play its tractive force limit.In addition, it is reasonable that the utility model also has mechanism design, and operation control is simple and easy to do, damping, locks well behaved advantage.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the utility model principle schematic.
Fig. 2 is that the K of Fig. 1 is to topology view.
Fig. 3 is that the L of Fig. 1 is to topology view.
The utility model is made its principle of work and structure thereof below in conjunction with embodiment (accompanying drawing) and being described in further detail:
As Fig. 1, Fig. 2, shown in Figure 3: this oleo-pneumatic suspension mechanism is made up of vehicle bridge (12), wheel (11), horizontal U-shaped frame (1), intermediate rod (2), hanging oil cylinder (4), damped valve (6), two-position four-way solenoid directional control valve (7) (9) (10) and shutoff valve (8).Vehicle bridge (12) intersects vertically with horizontal U-shaped frame (1) and is fastenedly connected, and this is the driving member of hitch guiding leverage.Montant (3) above intermediate rod (2) and the horizontal U-shaped frame (1) is connected by plain radial bearing, and it and hanging oil cylinder (4) all are the lead driven members of leverage of hitch.Transverse force effect when vehicle bridge (12) and wheel (11) are subjected to the rugged vertical reaction in ground as the driving member in the guiding leverage of hitch or turn and when moving, because guiding leverage spatial linkage, so each rod member of entire mechanism all can produce corresponding space motion.Horizontal U-shaped frame (1) is connected by oscillating bearing at the A point with vehicle frame, montant (3) above the horizontal U-shaped frame (1) is connected by oscillating bearing at the B point with intermediate rod (2) again, therefore horizontal U-shaped frame (1) is subjected to the restriction of intermediate rod (2), can rotate around the AC line with intermediate rod (2), hanging oil cylinder (4), can only rotate around the AB line again with hanging oil cylinder (4).This shows, two rotational freedoms are arranged though the utility model has only a driving link.So the motion of spatial linkage of the present utility model is uncertain, be random variation along with the variation of pavement conditions.Horizontal U-shaped frame (1) is when doing space motion, and D point and E point are followed together motion, makes the length respective change of hanging oil cylinder (4) GE and FD, and promptly the piston rod of hanging oil cylinder stretches out or bounces back.Because hanging oil cylinder (4) is connected by oscillating bearing with the G point at F point with vehicle frame, thus in above-mentioned D point and the E motion of ordering and GE and the FD length variations process just hanging oil cylinder (4) do front and back or swing around the F of vehicle frame point and G point.
When hanging oil cylinder (4) when piston rod stretches out, the oil of energy storage (5) lining is under the promotion of air cavity high pressure nitrogen, flow to oil cylinder by damped valve (6) and solenoid directional control valve (7) (10), when the effect that is subjected to ground reaction force, during the piston rod retraction, oil in the oil cylinder flows to the oil pocket of energy storage (5) by solenoid directional control valve (7) (10) and damped valve (6), and make the air cavity volume diminish and the air pressure increase, therebetween when the oil pressure in the oil cylinder during greater than the response pressure of the check valve in the damped valve (6), fluid can also flow to energy storage (5) from check valve, like this hanging oil cylinder (4) can be in length shortens process do not sprained bad, thereby guaranteed the regular event of guiding leverage.May be to extend simultaneously or shortening simultaneously in above-mentioned hanging oil cylinder length variations, also may be that side elongation opposite side shortens.Fluid is the road surface kinetic energy of oil flow and the heat that the oil temperature rises to the vibration of vehicle Conversion of energy the flowing of pipeline, flow regulating valve and check valve in the whole process.Also consume vibrational energy in the process that the volume of the high pressure nitrogen in energy storage (5) air cavity constantly changes simultaneously, and be converted into the gas heating.Because the effect of damped valve (6), also make the very fast decay of vibration, the whole hitch state that tends to be steady.Therefore this hitch plays a part damping when construction machinery and equipment travels.
Three two-position four-way solenoid directional control valves (7) (9) (10) and shutoff valve (8) in the pipeline are handled control as required by the driver, make oleo-pneumatic suspension mechanism be in certain particular state then.
Hang opening when travelling, shutoff valve (8) is closed, and change-over valve (7), (10) are connected, change-over valve (9) is obstructed, with about two oil cylinder oil circuits cut off, side-by-side mounting oil cylinder (4) is connected by change-over valve (7), (10) respectively with homonymy energy storage (5), whole hitch plays cushioning effect.
Hang lock-out state during operation, shutoff valve (8) is closed, and side-by-side mounting oil cylinder (4) is communicated with by change-over valve (9), vehicle bridge (12) still can about float.But side-by-side mounting oil cylinder (4) is cut off by change-over valve (7), (10) respectively with homonymy energy storage (5), does not play the suspension cushioning effect.
Hang lock-out state during operation, two change-over valves (7) (10) all are in obstructed position, and change-over valve (9) is connected, and shutoff valve (8) is opened, and can replenish fluid to two hanging oil cylinder.
The automotive servicing state, shutoff valve (8) is opened and is connected, homonymy hanging oil cylinder (4) is connected by change-over valve (7), (10) respectively with energy storage (5), and two hanging oil cylinder can discharge the fluid in whole suspension pipeline, the element as service mode also by change-over valve (9) connection at this moment.
Elasticity limit element (13) is installed on the horizontal U-shaped frame, when the guiding leverage moves to when making that elasticity limit element (13) contacts with the vehicle frame main beam lower plane, the stroke of hanging oil cylinder (4) also remains a little, so both avoided rod member to contact, and left certain leeway for again simultaneously guiding leverage proper motion with rigidity between the vehicle frame.
Montant (3) also can be arranged in opposite side shown in Figure 1, and intermediate rod this moment (2) is connected at the C point with montant (3), and intermediate rod (2) is connected at the B point with vehicle frame.
Claims (5)
1, a kind of oleo-pneumatic suspension mechanism, it is characterized in that: it comprises horizontally disposed U-shaped frame (1), intermediate rod (2), be connected to two hanging oil cylinder (4) of U-shaped frame (1) rear open end and the energy storage (5) that is connected with two hanging oil cylinder (4) respectively, damped valve (6), and is arranged on change-over valve (7), (9), (10) between pipeline; Wherein, U-shaped frame (1) front end center connects to ground, its two middle side part intersects vertically and fastening the connection with vehicle bridge (12) respectively, is connected with a montant (3) in any side of U-shaped frame (1), and montant (3) upper end is connected on the vehicle frame by coupled intermediate rod (2); The cylinder tail end of described two hanging oil cylinder (4) is connected with vehicle frame respectively, two hanging oil cylinder (4) are communicated with energy storage (5) by change-over valve (7), (10) and damped valve (6) respectively, be connected by pipeline and the change-over valve (9) that is arranged between pipeline between two hanging oil cylinder (4), and be provided with a shutoff valve (8) on this connecting pipeline, above-mentioned each point of connection place is the spherical pair connection structure.
2, oleo-pneumatic suspension according to claim 1 mechanism, it is characterized in that: the elastic medium in hanging oil cylinder (4) and the energy storage (5) is respectively high-voltage oil liquid and high-pressure inert gas.
3, oleo-pneumatic suspension according to claim 1 mechanism, it is characterized in that: damped valve (6) is combined by flow regulating valve and check valve, and installation direction is that fluid can only flow to energy storage (5) by check valve from hanging oil cylinder (4).
4, oleo-pneumatic suspension according to claim 1 mechanism, it is characterized in that: spherical pair all adopts plain radial bearing.
5, oleo-pneumatic suspension according to claim 1 mechanism is characterized in that: be provided with elasticity limit element (13) between vehicle frame and horizontal U-shaped frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00232541 CN2454171Y (en) | 2000-12-07 | 2000-12-07 | Oil-gas suspension mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00232541 CN2454171Y (en) | 2000-12-07 | 2000-12-07 | Oil-gas suspension mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2454171Y true CN2454171Y (en) | 2001-10-17 |
Family
ID=33595145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00232541 Expired - Lifetime CN2454171Y (en) | 2000-12-07 | 2000-12-07 | Oil-gas suspension mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2454171Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368218C (en) * | 2006-03-20 | 2008-02-13 | 中国人民解放军总后勤部建筑工程研究所 | Spring suspension self locking mechanism |
| CN101618669B (en) * | 2008-06-30 | 2010-12-08 | 徐州重型机械有限公司 | Multi-axle vehicle hydro-pneumatic suspension system and crane |
| CN102059929A (en) * | 2010-12-20 | 2011-05-18 | 三一汽车起重机械有限公司 | Hydro-pneumatic suspension system and wheeled vehicle with same |
| CN103612548A (en) * | 2013-12-08 | 2014-03-05 | 武汉天捷重型装备股份有限公司 | Hydro-pneumatic suspension mechanism for engineering vehicle |
| CN105751848A (en) * | 2016-03-24 | 2016-07-13 | 中国北方车辆研究所 | Energy accumulator vibration attenuation valve group with locking function |
| CN106080257A (en) * | 2016-08-03 | 2016-11-09 | 西南交通大学 | High temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106080256A (en) * | 2016-08-03 | 2016-11-09 | 西南交通大学 | A kind of improve the method for vehicle magnetic suspension performance, high temperature superconducting magnetic suspension system and magnetic suspension train |
-
2000
- 2000-12-07 CN CN 00232541 patent/CN2454171Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368218C (en) * | 2006-03-20 | 2008-02-13 | 中国人民解放军总后勤部建筑工程研究所 | Spring suspension self locking mechanism |
| CN101618669B (en) * | 2008-06-30 | 2010-12-08 | 徐州重型机械有限公司 | Multi-axle vehicle hydro-pneumatic suspension system and crane |
| CN102059929A (en) * | 2010-12-20 | 2011-05-18 | 三一汽车起重机械有限公司 | Hydro-pneumatic suspension system and wheeled vehicle with same |
| CN103612548A (en) * | 2013-12-08 | 2014-03-05 | 武汉天捷重型装备股份有限公司 | Hydro-pneumatic suspension mechanism for engineering vehicle |
| CN105751848A (en) * | 2016-03-24 | 2016-07-13 | 中国北方车辆研究所 | Energy accumulator vibration attenuation valve group with locking function |
| CN105751848B (en) * | 2016-03-24 | 2018-08-21 | 中国北方车辆研究所 | Accumulator vibration damping valve group with blocking function |
| CN106080257A (en) * | 2016-08-03 | 2016-11-09 | 西南交通大学 | High temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106080256A (en) * | 2016-08-03 | 2016-11-09 | 西南交通大学 | A kind of improve the method for vehicle magnetic suspension performance, high temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106080257B (en) * | 2016-08-03 | 2018-10-09 | 西南交通大学 | High temperature superconducting magnetic suspension system and magnetic suspension train |
| CN106080256B (en) * | 2016-08-03 | 2018-12-25 | 西南交通大学 | A kind of method, high temperature superconducting magnetic suspension system and magnetic suspension train improving vehicle magnetic suspension performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU YUTONG HEAVY INDUSTRIES CO. Free format text: FORMER OWNER: ZHENGZHOU ZHENGGONG MACHINERY GROUP CO.LTD. Effective date: 20080815 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080815 Address after: No. 8, Chun Yang Road, Zhengzhou hi tech Development Zone, Henan, Zhengzhou, China: 450001 Patentee after: Zhengzhou Yutong Heavy Industry Co., Ltd. Address before: No. 23, Tuen Mun Road, Zhongyuan District, Henan, Zhengzhou: 450051 Patentee before: Zhenggong Mechanical Group Co., Ltd., Zhengzhou |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20101207 Granted publication date: 20011017 |