CN2172364Y - Pressure adaptation multi-way orientable valve - Google Patents
Pressure adaptation multi-way orientable valve Download PDFInfo
- Publication number
- CN2172364Y CN2172364Y CN 93219418 CN93219418U CN2172364Y CN 2172364 Y CN2172364 Y CN 2172364Y CN 93219418 CN93219418 CN 93219418 CN 93219418 U CN93219418 U CN 93219418U CN 2172364 Y CN2172364 Y CN 2172364Y
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- Prior art keywords
- valve
- pressure
- valve body
- oil
- shuttle
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- Expired - Fee Related
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Abstract
The utility model provides a pressure adaptation multi-way change valve, being suitable for the get-on steering control of the hydraulic truck crane. The utility model is composed of multiple valve plates, comprising the pressure adaptation valve plate and the hoisting reversing valve plate, etc., wherein, the pressure adaptation valve plate is composed of a valve body which is provided with an oil feed cavity and an oil scavenge cavity, and a springloaded PC-valve which is arranged on the valve body; the hoisting reversing valve plate is composed of a shuttle valve which is formed by the method that a shuttle valve sleeve, a shuttle valve seat and a steel ball are pressed into the valve body through a screw plug, and a change valve which is composed of a valve rod provided with a valve cover and arranged on the valve body and a spring seat used for containing a spring and arranged in the valve cover. The utility model solves the problem of the follow-up control in which the hydraulic system supply pressure follows the loading pressure, and satisfies the matching requirement of 16T-40T truck crane.
Description
The utility model provides a kind of pressure adaptation multiple directional control valve, belongs to the multiple-way valve that each valve has an actuating element and is interconnected to form, and is applicable to the manipulation control of getting on the bus of 16T to 40T hydraulic mobile crane.
At present, domestic owing to be subjected to element limits, the system level of hydraulic mobile crane is with abroad there is a big difference, though the product level of some combination of technology and trade is very high, its multi-way valve mainly solves by import, domestic existing product is ZL series and ZFS series multiple directional control valve, all be combined by general Reversing valve plate and relief valve, major defect is: the meticulous adjustment range of flow is little, does not have the pressure adaptation function, so function is few, volume is big, and power loss is big, and axial seal is unreasonable, phenomenon easily leaks outside, and external similar advanced technology product has only a few countries to have, such as the D series of the interior field oil pressure of the SM series of the BOSCH-REXROTH company of Germany and Japan, though advanced technology, function ratio is more complete, but because its complex structure, the manufacture cost height can't be accepted homemade main frame, so domestic hydraulic mobile crane industry presses for the control valve of getting on the bus with advanced function that solves 16T～40T.
It is a kind of on the basis of international like product technology that the purpose of this utility model is to provide, create novel hydraulic multi-way valve with advanced function, its task is to improve the Flow-rate adjustment characteristic of existing multi-way valve, make the change in pressure of the charge oil pressure adaptation load of hydraulic system, thereby realize the servo-actuated control of hydraulic system, improve the power consumpiton condition of level pressure hydraulic system, the function that has Energy Saving Control under rated load satisfies the supporting requirement of domestic hydraulic mobile crane 16T～40T.
The utility model is realized with following technological scheme: comprise by main relief valve and be provided with pressure and shake the control mouth, pressure tap, the oil-feed valve block that the valve body of pressure oil import is formed, the luffing Reversing valve plate of forming by three six-way transfer valves of Y type and straight moving overload valve, by three six-way transfer valves of Y type and two flexible Reversing valve plates that anti-cavitation erosion overload valve is formed, the slewing directional control valve sheet that constitutes by three six-way transfer valves of Y type, by the pressure adaptation valve block that pressure tap is set on the valve block, the elevator Reversing valve plate of forming by selector valve and shuttle valve, shake the control mouth by being provided with on its valve body, return opening, the interflow valve block that the interflow valve body of pressure oil import and main relief valve are formed, each road valve block is connected in series clamping successively by bolt, for preventing the valve opening distortion, clamping place pad dress aluminium pool packing ring between valve block.Whole oil circuit adopts oil circuit in parallel, and valve body is the casting runner.Described pressure adaptation valve block is by installing mounting spring on PC valve, the PC valve on valve body, the valve body, valve body is provided with input pressure chamber and oil back chamber, screw plug, Sealing and valve bonnet, damper is set on the valve bonnet constitutes.Described elevator Reversing valve plate is equipped with shuttle valve sleeve, shuttle valve seat, steel ball by the neutral position of valve body, two active chambers in valve body top, and be pressed into the shuttle valve that valve body is formed by plug screw, via oil sealing and pressure adaptation valve block link and by valve body on the lower side portion install by valve rod, valve rod end valve bonnet be installed, on the valve rod of valve bonnet inside spring seat is housed, the selector valve that dress technology Sealing stifled and junction point constitutes on mounting spring, the valve body on the spring seat is formed.
The utility model is compared institute and is had beneficial effect fruit with background technique: 1, because structural innovation, when by P
1During the mouth oil-feed, be in the meta state at valve rod, pressure oil enters the cavity of resorption of the PC spool of pressure adaptation element, overcomes spring force and makes the pressure off-load, and pressure unloading is 0.8MPa, and when handling the valve rod commutation, pressure oil enters A
1Or B
1At this moment the selection induced pressure of the pressure signal by shuttle valve enters the spring chamber of pressure adaptation element, input pressure and induced pressure servo-actuated are relatively set up, this is that the pressure adaptation process is also by following test, verified that induced pressure changes its charge oil pressure servo-actuated and changes, thereby improved the Flow-rate adjustment characteristic of selector valve, made it under the operating mode of selector valve when induced pressure changes arbitrarily, working flow only changes with the variation of its opening.Test as follows: one, the test of the function of pressure adaptation element and adaptation pressure reduction: test comprises that induced pressure changes the constitution test of constant constitution test of rate of discharge and the variation of induced pressure change system pressure adaptation, test method: P
1The mouth oil-feed, by the flow 50L/min and the 100L/min of valve, handling the selector valve stroke is that 3mm fixes respectively, and the regulating system relief valve makes variation in pressure, test result sees the following form: it is constant that induced pressure changes working flow, and induced pressure change system pressure adaptation changes.
Flow to P1 → B1 → K
System pressure WPa 3.2 5.2 7.2
Flow system flow l/min 100 (50)
Valve rod travel mm 3
Working flow test knot amount: 35.29l/min
Induced pressure measurement result: WPa 2.1 4.1 6.1
They are two years old, the dynamic test of the pressure adaptation characteristic of pressure adaptation element: this test is carried out on hydraulic mobile crane, operating mode is: in the process that hoists of hoist, the dynamic process of (16T) from unloaded lotus to load rating, test result is as follows: P1 is an input pressure along with the variation of induced pressure Pa changes, thereby realize the servo-actuated control of hydraulic system, improve the power consumpiton condition of hydraulic system, the dynamic response sensitivity, it is stable to adapt to pressure reduction, as seen improved the function of host hydraulic system, the utility model provides the novel hydraulic element for the technological progress of China's engineering machinery, can satisfy domestic hydraulic mobile crane 16T～40T gets on the bus and handles the supporting demand of control, this model utility belongs to general hydraulic element, can be widely used in engineering machinery and other running mechanism, is desirable update product.The pressure adaptation curve is as follows:
2, because the pressure adaptation element has energy-conservationly, more conventional hydraulic system is energy-conservation 10～20%, and obvious social is arranged.3, valve body all adopts the casting runner, and it is little to have a volume, and compact structure is realized the machine integrated hydraulic element of electric liquid of composition operation and servo-actuated control.
Describe the utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the plan view of pressure adaptation multiple directional control valve;
Fig. 2 is the plan view of pressure adaptation multiple directional control valve;
Fig. 3 is the B-B cross section view of pressure adaptation multiple directional control valve;
Fig. 4 is the A-A cross section view of pressure adaptation multiple directional control valve;
Fig. 5 is the whole hydraulic schematic diagram of pressure adaptation multiple directional control valve.
Fig. 1～Fig. 5 has provided a kind of most preferred embodiment of the present utility model.The pressure adaptation multiple directional control valve is made of the multichannel valve block, wherein: oil-feed valve block P
2Be made up of CYF20G master's relief valve and oil-feed valve body, the oil-feed valve body is provided with pressure and shakes control mouthful V
2, pressure tap G
2, pressure oil import P
2Luffing Reversing valve plate A
4, B
4Three six-way transfer valves and the directly moving overload valve of CZYF20E by the Y type meta function that is provided with throttling function are formed.Flexible Reversing valve plate A
3, B
3Three six-way transfer valves and two the anti-cavitation erosion of CFYF20G overload valves by the Y type meta function that is provided with throttling function are formed.Slewing directional control valve sheet A
2, B
2Three six-way transfer valves by Y type meta function are formed.By pressure adaptation element and interflow one-way valve and pressure tap G is set
1The pressure adaptation valve block.Elevator Reversing valve plate A
1, B
1Be made up of selector valve and shuttle valve, its valve body is by the Y valve body that is provided with throttling function.Interflow valve block T is made up of interflow valve body and CYF25G master's relief valve, and valve body is provided with and shakes control mouthful V
1, return opening t
1And t
2, pressure oil import P
1And oil return inlet T.This each valve block of pressure adaptation multiple directional control valve is connected in series successively and is clamped by bolt.Clamp the local deformation of rear valve body for the construction bolt that solves the chip multiple directional control valve, cause the problem of valve opening distortion, present embodiment has adopted the measure of new anti-valve opening distortion, and promptly aluminium pool packing ring 11 has been set up in clamping place between valve block, and its function is the local deformation of eliminating valve body.Whole oil circuit adopts the oil circuit in parallel that is provided by Fig. 5, and employing double pump fuel feeding, the output unit of interflow and moment limit square device electrical signal in the valve, valve body all adopts the casting runner, has that volume is little, compact structure, and can realize the machine integrated hydraulic element of electric liquid that composition operation and servo-actuated are controlled.Above-mentioned said pressure adaptation valve block is by installing PC valve 2 on valve body 1, the valve body 1, install on mounting spring 3, the valve body 1 on the PC valve 2 valve bonnet 5, valve bonnet 5 be provided with input pressure chamber P, oil back chamber T, screw plug 8 and junction point Sealing 4, Sealing 7 are set on damper 6, the valve body 1, Sealing 9 constitutes.Described elevator Reversing valve plate A
1, B
1Form by selector valve and shuttle valve, wherein, valve body 10 also is equipped with shuttle valve sleeve 21, shuttle valve seat 24, steel ball 22 in two the active chamber neutral position in valve body 10 tops, and is pressed into valve body 10 by plug screw 20 and constitutes shuttle valve, and shuttle valve sleeve 21 external sealeds wherein adopt Sealing 23 sealings; And can be O type circle and the pressure adaptation valve block links by oil sealing.Valve body 10 is equipped with the spring seat 13 that is limited its position by jump ring 14 on the valve rod 12 of portion's installation by valve rod 12, valve rod 12 ends installation valve gap 25, valve bonnet 16, valve bonnet 16 inside on the lower side, on the spring seat 13 on mounting spring 15, the valve body 10 Sealing 19 of mounting process stifled 18 and junction point constitute selector valves, valve rod 12 axle heads are provided with composite seal 17 sealings.The nominal pressure of this pressure adaptation multiple directional control valve is 25MPa, and nominal flow rate is 300L/min, and adaptation pressure reduction is 0.8～1.2MPa.Its working principle: A1 or B1 active chamber by selector valve are selected high voltage control signal by shuttle valve, enter the spring chamber of PC spool, in order to improve this valve antijamming capability, two-stage damping, pump oil-feed have been designed below guiding valve, spring force and input pressure P1 compare in addition by working pressure Pa or Pb, thereby realize the servo-actuated control of its pressure, its pressure balance equation is as follows:
Pa（Pb）＋Pt＝P1
In the formula: Pa(Pb)-working pressure
The Pt-spring force
The P1-input pressure
The design adapts to pressure reduction: 0.8～1.2MPa
Be input pressure P1=(0.8～1.2) Pa.
Claims (1)
1, a kind of pressure adaptation multiple directional control valve, comprise by main relief valve and be provided with pressure and shake the control mouth, pressure tap, the oil-feed valve block that the valve body of pressure oil import is formed, the luffing Reversing valve plate of forming by three six-way transfer valves of Y type and straight moving overload valve, by three six-way transfer valves of Y type and two flexible Reversing valve plates that anti-cavitation erosion overload valve is formed, the slewing directional control valve sheet of forming by three six-way transfer valves of Y type, the elevator Reversing valve plate of forming by selector valve and shuttle valve, shake the control mouth by being provided with on its valve body, return opening, the interflow valve block that the interflow valve body of pressure oil import and main relief valve are formed, each road valve block is connected in series clamping successively by bolt, whole oil circuit is in parallel, valve body is the casting runner, it is characterized in that:
A, the pressure adaptation valve block that between slewing directional control valve sheet and elevator Reversing valve plate, is installed on it and is provided with pressure tap, it is provided with and on input pressure chamber, oil back chamber, screw plug, Sealing and valve bonnet, the valve bonnet damper is set and constitutes by mounting spring, valve body are installed on valve body, the valve body on PC valve, the PC valve;
B, elevator Reversing valve plate are equipped with shuttle valve sleeve, shuttle valve seat, steel ball by the neutral position of valve body, two active chambers in valve body top, and be pressed into the shuttle valve that valve body is formed by plug screw, via oil sealing and pressure adaptation valve block link and valve body on the lower side portion install to install and on the valve rod of valve bonnet, valve bonnet inside the selector valve that dress technology Sealing stifled and junction point constitutes on mounting spring, the valve body on spring seat, the spring seat be housed and form by valve rod, valve rod end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219418 CN2172364Y (en) | 1993-09-22 | 1993-09-22 | Pressure adaptation multi-way orientable valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219418 CN2172364Y (en) | 1993-09-22 | 1993-09-22 | Pressure adaptation multi-way orientable valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2172364Y true CN2172364Y (en) | 1994-07-20 |
Family
ID=33798810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93219418 Expired - Fee Related CN2172364Y (en) | 1993-09-22 | 1993-09-22 | Pressure adaptation multi-way orientable valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2172364Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294362C (en) * | 2005-02-09 | 2007-01-10 | 张思学 | Programme-controlled differential multiple unit valve |
| CN100378345C (en) * | 2003-10-27 | 2008-04-02 | 纳博特斯克株式会社 | Washer and multi-gang valve with said washer |
| CN101498375B (en) * | 2008-02-03 | 2010-10-06 | 徐福刚 | Integral manual multiple-way valve |
| CN101435445B (en) * | 2007-11-16 | 2011-01-12 | 上海立新液压有限公司 | Liquid-controlled non-return valve |
| CN101600999B (en) * | 2006-10-16 | 2012-07-04 | 艾利奥特公司 | Direct acting hydraulic trip block with majority voting |
| CN101498328B (en) * | 2009-03-13 | 2012-07-25 | 南京高精船用设备有限公司 | Ship hydraulic station for realizing automatic cycle cooling |
| CN102674210A (en) * | 2012-05-14 | 2012-09-19 | 浙江海宏液压科技股份有限公司 | Lift converging multiway valve |
| CN103899588A (en) * | 2014-01-17 | 2014-07-02 | 徐州徐工随车起重机有限公司 | Lorry-mounted crane multi-way reversing device and straight arm lorry-mounted crane |
| CN105672385A (en) * | 2016-02-24 | 2016-06-15 | 徐州徐工挖掘机械有限公司 | Excavator bucket rod confluent control device |
| CN108516465A (en) * | 2018-06-01 | 2018-09-11 | 浙江三装备有限公司 | hydraulic system and crane |
| CN108547817A (en) * | 2018-07-02 | 2018-09-18 | 北京华海基业机械设备有限公司 | Two-way repid cut-off valve |
| CN110131230A (en) * | 2019-06-12 | 2019-08-16 | 泸州众大科技液压件有限公司 | A kind of load-sensitive pile-up valve of digital control state no interference signal and anti-saturation flow |
-
1993
- 1993-09-22 CN CN 93219418 patent/CN2172364Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100378345C (en) * | 2003-10-27 | 2008-04-02 | 纳博特斯克株式会社 | Washer and multi-gang valve with said washer |
| CN1294362C (en) * | 2005-02-09 | 2007-01-10 | 张思学 | Programme-controlled differential multiple unit valve |
| CN101600999B (en) * | 2006-10-16 | 2012-07-04 | 艾利奥特公司 | Direct acting hydraulic trip block with majority voting |
| CN101435445B (en) * | 2007-11-16 | 2011-01-12 | 上海立新液压有限公司 | Liquid-controlled non-return valve |
| CN101498375B (en) * | 2008-02-03 | 2010-10-06 | 徐福刚 | Integral manual multiple-way valve |
| CN101498328B (en) * | 2009-03-13 | 2012-07-25 | 南京高精船用设备有限公司 | Ship hydraulic station for realizing automatic cycle cooling |
| CN102674210A (en) * | 2012-05-14 | 2012-09-19 | 浙江海宏液压科技股份有限公司 | Lift converging multiway valve |
| CN102674210B (en) * | 2012-05-14 | 2014-11-05 | 浙江海宏液压科技股份有限公司 | Lift converging multiway valve |
| CN103899588A (en) * | 2014-01-17 | 2014-07-02 | 徐州徐工随车起重机有限公司 | Lorry-mounted crane multi-way reversing device and straight arm lorry-mounted crane |
| CN105672385A (en) * | 2016-02-24 | 2016-06-15 | 徐州徐工挖掘机械有限公司 | Excavator bucket rod confluent control device |
| CN105672385B (en) * | 2016-02-24 | 2018-02-09 | 徐州徐工挖掘机械有限公司 | A kind of excavator boom collaborates control device |
| CN108516465A (en) * | 2018-06-01 | 2018-09-11 | 浙江三装备有限公司 | hydraulic system and crane |
| CN108547817A (en) * | 2018-07-02 | 2018-09-18 | 北京华海基业机械设备有限公司 | Two-way repid cut-off valve |
| CN110131230A (en) * | 2019-06-12 | 2019-08-16 | 泸州众大科技液压件有限公司 | A kind of load-sensitive pile-up valve of digital control state no interference signal and anti-saturation flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |