CN102434528A - Variable-damping oil gas suspension cylinder controlled by switch - Google Patents
Variable-damping oil gas suspension cylinder controlled by switch Download PDFInfo
- Publication number
- CN102434528A CN102434528A CN2011104047272A CN201110404727A CN102434528A CN 102434528 A CN102434528 A CN 102434528A CN 2011104047272 A CN2011104047272 A CN 2011104047272A CN 201110404727 A CN201110404727 A CN 201110404727A CN 102434528 A CN102434528 A CN 102434528A
- Authority
- CN
- China
- Prior art keywords
- external
- damping
- oil hole
- oil
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a variable-damping oil gas suspension cylinder controlled by a switch, belonging to the field of a dumper for an off-highway mine. In the invention, a cylinder barrel is provided with an upper oil hole and a lower oil hole, wherein the upper oil hole is communicated with a hydraulic oil tank at the upper part of a piston, the lower oil hole is communicated with an inner cushion cavity, the upper oil hole and the lower oil hole are connected through an external oil passage, the external oil passage is provided with an adjustable orifice and an electromagnetic valve, the adjustable orifice and the electromagnetic valve form on external cushion cavity on the external oil passage and within the stroke range of the cylinder barrel, and the electromagnetic valve is connected with the control switch. According to the invention, as the control switch controls the switching on and off of the external cushion chamber under different working conditions, the changes of the damping of the suspension cylinder under different working conditions are realized, and further, the best traveling smoothness and operation stability are realized.
Description
Technical field
The present invention relates to a kind of adaptive damping oleo-pneumatic suspension cylinder, belong to non-highway quarry tipper field.
Background technique
In order to make vehicle have good run smoothness and control stability, the stroke of suspension cylinder and rigidity were less when empty wagons went, and required to have lower damping; And when the vehicle full load, the stroke of suspension cylinder and rigidity are all bigger, require to have higher damping; But the traditional non-highway quarry tipper oleo-pneumatic suspension cylinder of selling in the market and using, damping all are definite constant, and its size is to be determined by the form of the damping hole on the piston rod, diameter and quantity; Traditional decide the requirement that damping oil gas suspension cylinder can't satisfy the unloaded and full load different damping of automobile.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, compact, control is convenient, reliable, can satisfy the unloaded and adaptive damping oleo-pneumatic suspension cylinder fully loaded different damping characteristic requirements, that shock-absorbing capacity is good of non-highway quarry tipper.
Technical solution:
The present invention includes: piston rod, cylinder barrel, piston, the annulus that piston and inner wall of cylinder and piston rod outer wall surround is the internal damping chamber; Cylinder barrel is provided with upper oil hole and following oilhole; Upper oil hole communicates with piston top hydraulic oil container; Following oilhole is communicated with the internal damping chamber, and upper oil hole is connected through external oil duct with following oilhole, and external oil duct is provided with regulates discharge orifice and solenoid valve; On the external oil duct, regulate discharge orifice and solenoid valve forms the external buffer chamber in the travel range of cylinder barrel, solenoid valve is connected with control switch.
When vehicle was unloaded, the driver pressed control switch, and the external oil duct of electromagnetic valve is opened, and worked simultaneously in external buffer chamber and internal damping chamber; Damping hole quantity increases, and automobile obtains less damping; When the vehicle full load, driver's closing control switch, the external oil duct of electromagnetic valve is closed, and has only the internal damping chamber to work; Damping hole quantity reduces, and automobile obtains bigger damping.Regulate the big I of discharge orifice and the requirement of outside buffer cavity damping size is regulated, to reach best run smoothness and operation stabilization according to the oleo-pneumatic suspension system.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Be with piston 4 on the piston rod 1 of the present invention; Hydraulic oil 5 is equipped with on piston 4 tops, is filled with dry nitrogen 6 above the oil reservoir of hydraulic oil 5, and piston 4 surrounds an annulus with cylinder barrel 2 inwalls and piston rod 1 outer wall; Be called the internal damping chamber; Also be full of hydraulic oil 5 in the internal damping chamber, established a plurality of radially fixing damping holes 7 on the piston rod 1, in two symmetrical definite value damping holes 7 therein one-way valve 3 has been housed.Cylinder barrel 2 is provided with upper oil hole and following oilhole; Upper oil hole communicates with piston 4 top hydraulic oil containers; Following oilhole is communicated with the internal damping chamber, and upper oil hole is connected through external oil duct 11 with following oilhole, and external oil duct 11 is provided with regulates discharge orifice 10 and solenoid valve 9; External oil duct 1, regulate discharge orifice 10 and solenoid valve 9 forms the external buffer chamber in the travel range of cylinder barrel 2, solenoid valve 9 and control switch 8 are connected through lead.Regulating the big I of discharge orifice 10 regulates the requirement of outside buffer cavity damping size according to the oleo-pneumatic suspension system.
Control switch 8 of the present invention is arranged in the operator cabin, and when vehicle was unloaded, the driver pressed control switch 8, and control electromagnetic valve 9 is opened, and open in the external buffer chamber, and external oil duct 11 is communicated with the internal damping chamber., vehicle falls when winnowing with a dustpan piston rod 1 stressed stretching out, outwards motion under the promotion of compressed nitrogen when running into; Hydraulic oil in the inner jogging chamber is through the inner chamber of a plurality of radially definite value damping holes 7 on the piston rod 1 as passage entering piston rod 1; Hydraulic oil in the external oil duct 11 also gets into the inner chamber of piston rod 1 through the damping hole of regulating discharge orifice 10.Because inside and outside buffer cavity is opened simultaneously, damping hole quantity increases, and automobile obtains less damping.
When the vehicle full load, driver's closing control switch 8, control electromagnetic valve 9 is closed, and the external buffer chamber is closed, and external oil duct 11 breaks off with the internal damping chamber., vehicle falls when winnowing with a dustpan piston rod 1 stressed stretching out, outwards motion under the promotion of compressed nitrogen when running into; Hydraulic oil in the inner jogging chamber is through the inner chamber of a plurality of radially definite value damping holes 7 on the piston rod 1 as passage entering piston rod 1.Because only open in the internal damping chamber, damping hole quantity reduces, and automobile obtains bigger damping.
The present invention connects under different operating modes and closes through control switch 8 control external buffer chambeies, is implemented in the variation of suspension cylinder damping under the different operating modes, to realize best run smoothness and control stability.
Claims (1)
1. the change damping oil gas suspension cylinder of switch control comprises: piston rod, cylinder barrel, piston, and the annulus of piston and inner wall of cylinder and the formation of piston rod outer wall is the internal damping chamber; It is characterized in that; Cylinder barrel is provided with upper oil hole and following oilhole, and upper oil hole communicates with piston top hydraulic oil container, and following oilhole is communicated with the internal damping chamber; Upper oil hole is connected through external oil duct with following oilhole; External oil duct is provided with regulates discharge orifice and solenoid valve, and on the external oil duct, regulate discharge orifice and solenoid valve forms the external buffer chamber in the travel range of cylinder barrel, solenoid valve is connected with control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104047272A CN102434528A (en) | 2011-11-26 | 2011-11-26 | Variable-damping oil gas suspension cylinder controlled by switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104047272A CN102434528A (en) | 2011-11-26 | 2011-11-26 | Variable-damping oil gas suspension cylinder controlled by switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434528A true CN102434528A (en) | 2012-05-02 |
Family
ID=45982803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104047272A Pending CN102434528A (en) | 2011-11-26 | 2011-11-26 | Variable-damping oil gas suspension cylinder controlled by switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434528A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704441A (en) * | 2015-07-31 | 2017-05-24 | 张宏如 | Hydro-pneumatic suspension cylinder with controllable stroke |
| CN106744148A (en) * | 2017-02-09 | 2017-05-31 | 苏州莱茵电梯股份有限公司 | Liquid phase two-pass buffer of elevator |
| CN111775648A (en) * | 2020-07-22 | 2020-10-16 | 徐州徐工矿业机械有限公司 | Semi-active hydro-pneumatic suspension control system and control method for mining dump truck |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4241816A (en) * | 1977-11-10 | 1980-12-30 | Quiri | Self-locking shock absorber with volume compensation |
| EP0381774A1 (en) * | 1988-07-29 | 1990-08-16 | Kabushiki Kaisha Komatsu Seisakusho | Suspension cylinder control system of vehicles |
| US5080392A (en) * | 1990-04-26 | 1992-01-14 | Cb Auto Design Inc. | Suspension unit |
| CN2462121Y (en) * | 2000-12-26 | 2001-11-28 | 张圳结 | Single-circulating pressure speed regulating oil pressure cylinder |
| CN101370704A (en) * | 2006-03-01 | 2009-02-18 | 古斯塔夫·马根韦尔斯有限及两合公司 | Faurecia kunststoffe automobil |
| CN201198853Y (en) * | 2008-05-15 | 2009-02-25 | 内蒙古北方重型汽车股份有限公司 | Buffering device of automobile hanging cylinder |
| CN201202702Y (en) * | 2008-06-05 | 2009-03-04 | 张宏如 | Empty / full load self-adapting oil gas hanging cylinder |
| CN201730890U (en) * | 2010-06-04 | 2011-02-02 | 张宏如 | No-load/full-load self-adaptive pressure compensation type hydro-pneumatic suspension cylinder |
| CN201908888U (en) * | 2010-10-28 | 2011-07-27 | 张宏如 | Pressure-controlled empty/full load, self-adaption hydro-pneumatic cylinder |
| CN202348821U (en) * | 2011-11-26 | 2012-07-25 | 内蒙古北方重型汽车股份有限公司 | Variable damping oil gas suspension cylinder with switch control |
-
2011
- 2011-11-26 CN CN2011104047272A patent/CN102434528A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4241816A (en) * | 1977-11-10 | 1980-12-30 | Quiri | Self-locking shock absorber with volume compensation |
| EP0381774A1 (en) * | 1988-07-29 | 1990-08-16 | Kabushiki Kaisha Komatsu Seisakusho | Suspension cylinder control system of vehicles |
| US5080392A (en) * | 1990-04-26 | 1992-01-14 | Cb Auto Design Inc. | Suspension unit |
| CN2462121Y (en) * | 2000-12-26 | 2001-11-28 | 张圳结 | Single-circulating pressure speed regulating oil pressure cylinder |
| CN101370704A (en) * | 2006-03-01 | 2009-02-18 | 古斯塔夫·马根韦尔斯有限及两合公司 | Faurecia kunststoffe automobil |
| CN201198853Y (en) * | 2008-05-15 | 2009-02-25 | 内蒙古北方重型汽车股份有限公司 | Buffering device of automobile hanging cylinder |
| CN201202702Y (en) * | 2008-06-05 | 2009-03-04 | 张宏如 | Empty / full load self-adapting oil gas hanging cylinder |
| CN201730890U (en) * | 2010-06-04 | 2011-02-02 | 张宏如 | No-load/full-load self-adaptive pressure compensation type hydro-pneumatic suspension cylinder |
| CN201908888U (en) * | 2010-10-28 | 2011-07-27 | 张宏如 | Pressure-controlled empty/full load, self-adaption hydro-pneumatic cylinder |
| CN202348821U (en) * | 2011-11-26 | 2012-07-25 | 内蒙古北方重型汽车股份有限公司 | Variable damping oil gas suspension cylinder with switch control |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704441A (en) * | 2015-07-31 | 2017-05-24 | 张宏如 | Hydro-pneumatic suspension cylinder with controllable stroke |
| CN106744148A (en) * | 2017-02-09 | 2017-05-31 | 苏州莱茵电梯股份有限公司 | Liquid phase two-pass buffer of elevator |
| CN111775648A (en) * | 2020-07-22 | 2020-10-16 | 徐州徐工矿业机械有限公司 | Semi-active hydro-pneumatic suspension control system and control method for mining dump truck |
| CN111775648B (en) * | 2020-07-22 | 2023-08-29 | 徐州徐工矿业机械有限公司 | Semi-active hydro-pneumatic suspension control system and control method for mining dump truck |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103644245A (en) | Automatic control variable damping oil-gas suspension cylinder | |
| US9004500B2 (en) | Vehicle height control device for motorcycle | |
| US9016700B2 (en) | Vehicle height control device for motorcycle | |
| CN103802626B (en) | Vehicle suspension system | |
| CN104613123A (en) | Two-stage pressure type hydro-pneumatic spring and working method | |
| CN103527697A (en) | Hydro-pneumatic spring suspension cylinder | |
| CN202348821U (en) | Variable damping oil gas suspension cylinder with switch control | |
| US20070175718A1 (en) | Self-pumping hydropneumatic spring strut | |
| CN203186023U (en) | Commercial vehicle suspension lowering device | |
| CN102434528A (en) | Variable-damping oil gas suspension cylinder controlled by switch | |
| CN204284289U (en) | A kind of amplitude selects vibration damper | |
| CN106704442B (en) | Hydro-pneumatic spring | |
| CN201202702Y (en) | Empty / full load self-adapting oil gas hanging cylinder | |
| CN101837716B (en) | Suspension device for mining dump truck | |
| CN102454657A (en) | Pressure-controlled zero/full-load self-adapting oil vapor hanging cylinder | |
| CN201908888U (en) | Pressure-controlled empty/full load, self-adaption hydro-pneumatic cylinder | |
| CN105889392A (en) | Suspension cylinder of mining dump truck | |
| CN201982410U (en) | Single acting piston-cylinder with upper buffer function | |
| CN110303845A (en) | A kind of rocker arm suspension back pressure chamber carrying buffer unit | |
| CN106536965B (en) | Shock absorber | |
| CN208669918U (en) | The double gas chamber plunger type accumulators of hydro pneumatic suspension | |
| CN204004159U (en) | Road spring damper mechanism | |
| CN107489726A (en) | A kind of damper | |
| JPS58183306A (en) | Car height adjusting device | |
| KR102152027B1 (en) | Shock absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |