CN202348821U - Variable damping oil gas suspension cylinder with switch control - Google Patents
Variable damping oil gas suspension cylinder with switch control Download PDFInfo
- Publication number
- CN202348821U CN202348821U CN2011205075294U CN201120507529U CN202348821U CN 202348821 U CN202348821 U CN 202348821U CN 2011205075294 U CN2011205075294 U CN 2011205075294U CN 201120507529 U CN201120507529 U CN 201120507529U CN 202348821 U CN202348821 U CN 202348821U
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- oil
- cylinder
- solenoid valve
- hole
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Abstract
The utility model relates to a variable damping oil gas suspension cylinder with switch control, belonging to the field of a non-road mining dumper. According to the utility model, an upper oil hole and a lower oil hole are arranged on the cylinder; 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 internal buffer chamber; the upper oil hole and the lower oil hole are connected with each other through an external oil path; an adjusting flow hole and a solenoid valve are arranged on the external oil path; the adjusting flow hole and the solenoid valve form an external buffer chamber on the external oil path within a stroke range of the cylinder; and the solenoid valve is connected with a control switch. The variable damping oil gas suspension cylinder controls the external buffer chamber to be switched on and off through the control switch according to different work conditions, so as to realize damping variation of the suspension cylinder on the different work conditions. Therefore, the optical riding comfort and the optical operation stability can be achieved.
Description
Technical field:
The utility model relates to a kind of adaptive damping oleo-pneumatic suspension cylinder, belongs 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.
The model utility content
It is a kind of simple in structure, compact that the purpose of the utility model is to provide, and 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 utility model comprises: piston rod, cylinder barrel, piston, and 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 the utility model structural representation.
Embodiment
Be with piston 4 on the utility model piston rod 1; 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.
The utility model control switch 8 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 utility model is connected under different operating modes and is closed 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 |
|---|---|---|---|
| CN2011205075294U CN202348821U (en) | 2011-11-26 | 2011-11-26 | Variable damping oil gas suspension cylinder with switch control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205075294U CN202348821U (en) | 2011-11-26 | 2011-11-26 | Variable damping oil gas suspension cylinder with switch control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348821U true CN202348821U (en) | 2012-07-25 |
Family
ID=46537828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205075294U Expired - Fee Related CN202348821U (en) | 2011-11-26 | 2011-11-26 | Variable damping oil gas suspension cylinder with switch control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348821U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434528A (en) * | 2011-11-26 | 2012-05-02 | 内蒙古北方重型汽车股份有限公司 | Variable-damping oil gas suspension cylinder controlled by switch |
| CN103644245A (en) * | 2013-09-26 | 2014-03-19 | 内蒙古北方重型汽车股份有限公司 | Automatic control variable damping oil-gas suspension cylinder |
| CN107299922A (en) * | 2017-08-03 | 2017-10-27 | 安徽科海压缩机制造有限公司 | A kind of buffering hydraulic cylinder |
-
2011
- 2011-11-26 CN CN2011205075294U patent/CN202348821U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434528A (en) * | 2011-11-26 | 2012-05-02 | 内蒙古北方重型汽车股份有限公司 | Variable-damping oil gas suspension cylinder controlled by switch |
| CN103644245A (en) * | 2013-09-26 | 2014-03-19 | 内蒙古北方重型汽车股份有限公司 | Automatic control variable damping oil-gas suspension cylinder |
| CN107299922A (en) * | 2017-08-03 | 2017-10-27 | 安徽科海压缩机制造有限公司 | A kind of buffering hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20201126 |