CN106678103A - Novel big-arm flow collecting valve - Google Patents
Novel big-arm flow collecting valve Download PDFInfo
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- CN106678103A CN106678103A CN201510750434.8A CN201510750434A CN106678103A CN 106678103 A CN106678103 A CN 106678103A CN 201510750434 A CN201510750434 A CN 201510750434A CN 106678103 A CN106678103 A CN 106678103A
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- valve
- oil groove
- flow collecting
- logical oil
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Abstract
The invention relates to a novel big-arm flow collecting valve. Through the integrated creative design of a valve body and a valve core, the problems that a conventional big-arm flow collecting valve is poor in control characteristic, complicated in structure and high in processing cost are solved, and unification of high performance and low cost is realized. The novel big-arm flow collecting valve particularly comprises the valve body (1) and the valve core (2), and is characterized in that the valve body (1) integrates valve bodies of a big-arm main valve and a flow collecting valve, the valve core (2) integrates valve cores of the big-arm main valve and the flow collecting valve, the valve core (2) can move in the axial direction, and the movable valve core (2) is arranged in the valve body (1) in a sleeved manner and an interference fit manner. The novel big-rm flow collecting valve has the advantages of simple structure, reasonable design, high flow collecting control precision, compact structure and the like. As the integrated valve core and a slide valve structure are adopted, the processing and the manufacturing are simple, and the structure is compact. The whole flow collecting synchronous control precision can be improved. The novel big-arm flow collecting valve is completely suitable for big-arm controlled hydraulic working conditions of excavators.
Description
Technical field
The invention belongs to hydraulic transmission technology field, and in particular to a kind of new large arm converging valve.
Background technology
In excavator hydraulic control system, large arm rises due to the requirement of speed, needs by double
Pump combines fuel feeding, and traditional converging valve and large arm main valve is two separate valves, is risen when large arm is needed
When, the pilot pressure signal that joystick sends, converging valve is acted on the first pilot power of large arm main valve
Under be synchronized with the movement, the valve port of main valve is opened with the valve port of converging valve, the flow that two hydraulic pumps are produced
Respectively by converging in large arm converging valve and main valve, and the runner after valve port, realize that large arm rises
Double pump joint fuel feeding, complete large arm interflow function.When large arm needs to decline, joystick is sent out
Go out pilot pressure signal, towards counter motion, converging valve is not changed pilot pressure signal shadow to large arm main valve
Ring, converging valve valve port is closed, and is not collaborated.Traditional converging valve is due to being to divide with large arm main valve
Body structure, the precision that both are synchronized with the movement is low, and control characteristic is poor, while fabricating high cost.
The content of the invention
The purpose of the present invention is：It is an object of the invention to provide a kind of large arm converging valve, by valve body
The integrated innovation design of structure and valve element, the existing large arm interflow control characteristic of solution is poor, structure is multiple
Miscellaneous and high processing costs problems, this reach larger high-performance and low cost unification.
The technical scheme is that：
A kind of new large arm converging valve, including valve body (1) and valve element (2), it is characterised in that valve
Body (1) is integrated with the valve body of large arm main valve and converging valve, valve element (2) be integrated with large arm main valve and
The valve element of converging valve, valve element (2) is axially movable, what movable valve element (2) was coordinated with gap
Mode is enclosed within valve body (1)；It is provided with valve element (2) and at the position of valve body (1) cooperation
Indent a (2-a), balancing slit b (2-b), balancing slit c (2-c), balancing slit d (2-d),
Indent e (2-e), balancing slit f (2-f), balancing slit g (2-g)；Open in valve body (1) internal valve opening
Have logical oil groove a (1-a), logical oil groove b (1-b), logical oil groove c (1-c), logical oil groove d (1-d),
Logical oil groove e (1-e), logical oil groove f (1-f), logical oil groove g (1-g)；Be drilled with valve body (1) with
Each logical oil groove identical hydraulic fluid port, wherein logical oil groove a (1-a) is communicated with interflow pump oil-in (3),
Logical oil groove b (1-b) communicates with interflow mouth (4), leads to oil groove c (1-c) and oil return B mouths (5)
Communicate, logical oil groove d (1-d) is communicated with load B mouths (6), leads to oil groove e (1-e) and main pump
Oil-in (7) is communicated, logical oil groove f (1-f) load A mouths (8) communicates, logical oil groove g (1-g)
Oil return A mouths (9) is communicated；
It is an advantage of the invention that：
The present invention has simple, reasonable in design valve body structure, interflow control accuracy height, compact conformation
The advantages of.The valve element of integrated form is present invention employs, slide-valve structure, processing and manufacturing is simple, knot
Structure is compact；The present invention can improve the control accuracy of whole interflow Synchronization Control.The present invention is fitted completely
For the hydraulic pressure operating mode that big arm of digger is manipulated.
Description of the drawings
Fig. 1 is schematic structural view of the invention
In figure, logical oil groove c, the 1-d of logical oil groove b, the 1-c of logical oil groove a, the 1-b of 1 valve body, 1-a leads to
The logical oil groove g of logical oil groove f, the 1-g of logical oil groove e, the 1-f of oil groove d, 1-e, 2 valve elements, 2-a balancing slits
A, 2-b balancing slit b, 2-c balancing slit c, 2-d balancing slit d, 2-e balancing slit e, 2-f annular groove
F, 2-g annular groove g, 2-h annular groove h, 2-i annular groove i, 3 interflow pump oil-ins, 4 interflow mouths, 5
It is oil return B mouths, 6 load B mouths, 7 main pump oil-ins, 8 load A mouths, 9 oil return A mouths, 10 big
Arm upward leader hydraulic fluid port, 11 large arm decline guide's hydraulic fluid port.
Specific embodiment
Below in conjunction with the accompanying drawings, by specific embodiment, the present invention is described in detail.
The invention provides the large arm converging valve that a kind of excavator hydraulic control system is used, such as Fig. 1
Shown, it constitutes a kind of new large arm converging valve by valve body 1 and valve element 2, including valve body (1) and
Valve element (2), it is characterised in that valve body (1) is integrated with the valve body of large arm main valve and converging valve, valve
Core (2) is integrated with the valve element of large arm main valve and converging valve, and valve element (2) is axially movable, movably
Valve element (2) be enclosed within valve body (1) in the way of the cooperation of gap；On valve element (2) and valve body
(1) coordinate position at be provided with balancing slit a (2-a), balancing slit b (2-b), balancing slit c (2-c),
Balancing slit d (2-d), balancing slit e (2-e), balancing slit f (2-f), balancing slit g (2-g)；
Be provided with valve body (1) internal valve opening logical oil groove a (1-a), logical oil groove b (1-b), logical oil groove c (1-c),
Logical oil groove d (1-d), logical oil groove e (1-e), logical oil groove f (1-f), logical oil groove g (1-g)；
It is drilled with valve body (1) and each logical oil groove identical hydraulic fluid port, wherein logical oil groove a (1-a) and interflow pump
Oil-in (3) is communicated, and logical oil groove b (1-b) is communicated with interflow mouth (4), leads to oil groove c (1-c)
Communicate with oil return B mouths (5), logical oil groove d (1-d) is communicated with load B mouths (6), logical oil groove
E (1-e) is communicated with main pump oil-in (7), logical oil groove f (1-f) load A mouths (8) communicates,
Logical oil groove g (1-g) oil return A mouths (9) communicates；
Lead to back when large arm converging valve both sides large arm upward leader hydraulic fluid port 10, large arm declines guide's hydraulic fluid port 11
During oily release of pressure, valve element 2 is in neutral position.Collaborate pump oil-in 3 to be hindered by valve element with interflow mouth 4
Disconnected, main pump oil-in 7 is blocked with load A mouths 8, load B mouths 6 by valve element, the flow of pump output
Valve body 1 can not be collaborated by large arm and enter big arm hydraulic cylinder, large arm remains stationary.
When pilot pressure signal is applied in large arm upward leader hydraulic fluid port 10, large arm declines guide's hydraulic fluid port 11
During logical oil return, valve element 2 enters valve body 1 towards left movement, the fluid Jing main pumps oil-in 7 from main pump
Interior logical oil groove e (1-e), by the valve port of valve element 2 logical oil groove d (1-d) is entered, then from load B
Mouth 6 flows to big arm cylinder lower end；Meanwhile, collaborate the fluid of pump from the interflow mouth of interflow pump oil-in 3
Into logical oil groove a (1-a), logical oil groove b (1-b) is entered by the valve port of valve element 2, then from interflow
Mouth 4 flows to big arm cylinder lower end to collaborate with main pump；Cylinder upper end fluid is because extruding is from load A mouths 8
Into, fuel tank is flowed back to by the valve port Jing oil return A mouths 9 of valve element 2, realize that the double pump that large arm rises is closed
Stream, the rate of climb is ensured.
Apply pilot pressure signal, large arm upward leader hydraulic fluid port 10 when guide's hydraulic fluid port 11 is declined in large arm
During logical oil return, valve element 2 enters valve body 1 towards right motion, the fluid Jing main pumps oil-in 7 from main pump
Interior logical oil groove e (1-e), by the valve port of valve element 2 logical oil groove f (1-f) is entered, then from load A
Mouth 8 flows to big arm cylinder upper end；Meanwhile, collaborate the fluid of pump because valve port is closed, it is impossible to from conjunction
Stream pump oil-in 3 flows into big arm cylinder；Oil cylinder lower end fluid is entered due to extruding from load B mouths 6,
Fuel tank is flowed back to by the valve port Jing oil return B mouths 5 of valve element 2, realizes that large arm declines single oil pump feed, prevented
Decline hypervelocity.
Finally it should be noted that listed above is only specific embodiment of the invention.Obviously,
The invention is not restricted to above example, additionally it is possible to have many variations.One of ordinary skill in the art
The all deformations that can directly derive from present disclosure or associate, are considered as this
The protection domain of invention.
Operation principle：
Large arm converging valve includes the two guide's hydraulic fluid ports in left and right, when the logical oil of the right large arm upward leader hydraulic fluid port,
When left side large arm declines guide's hydraulic fluid port release of pressure, to left movement under action of hydraulic force, main pump enters valve element
Hydraulic fluid port is connected with load port, meanwhile, interflow pump oil-in is connected with interflow mouth, and two pump oil liquid are able to
Collaborate outside valve, two pumps promote together large arm to rise.As the logical oil of left side guide's hydraulic fluid port, the right guide
During hydraulic fluid port release of pressure, valve element is moved right under action of hydraulic force, promotes main pump oil-in negative with another
Mouth connection is carried, interflow pump oil-in is closed all the time, and large arm is able to move downward will not exceed the speed limit.
Claims (1)
1. a kind of new large arm converging valve, including valve body (1) and valve element (2), it is characterised in that
Valve body (1) is integrated with the valve body of large arm main valve and converging valve, and valve element (2) is integrated with large arm main valve
With the valve element of converging valve, valve element (2) is axially movable, and movable valve element (2) is with gap cooperation
Mode be enclosed within valve body (1)；It is provided with valve element (2) and at the position of valve body (1) cooperation
Balancing slit a (2-a), balancing slit b (2-b), balancing slit c (2-c), balancing slit d (2-d),
Balancing slit e (2-e), balancing slit f (2-f), balancing slit g (2-g)；In valve body (1) internal valve opening
Be provided with logical oil groove a (1-a), logical oil groove b (1-b), logical oil groove c (1-c), logical oil groove d (1-d),
Logical oil groove e (1-e), logical oil groove f (1-f), logical oil groove g (1-g)；Be drilled with valve body (1) with
Each logical oil groove identical hydraulic fluid port, wherein logical oil groove a (1-a) is communicated with interflow pump oil-in (3),
Logical oil groove b (1-b) communicates with interflow mouth (4), leads to oil groove c (1-c) and oil return B mouths (5)
Communicate, logical oil groove d (1-d) is communicated with load B mouths (6), leads to oil groove e (1-e) and main pump
Oil-in (7) is communicated, logical oil groove f (1-f) load A mouths (8) communicates, logical oil groove g (1-g)
Oil return A mouths (9) is communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510750434.8A CN106678103A (en) | 2015-11-06 | 2015-11-06 | Novel big-arm flow collecting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510750434.8A CN106678103A (en) | 2015-11-06 | 2015-11-06 | Novel big-arm flow collecting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678103A true CN106678103A (en) | 2017-05-17 |
Family
ID=58857694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510750434.8A Pending CN106678103A (en) | 2015-11-06 | 2015-11-06 | Novel big-arm flow collecting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678103A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114013417A (en) * | 2021-09-13 | 2022-02-08 | 中国北方车辆研究所 | Constant-proportion pressure distribution valve with variable width of pressure equalizing groove |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989127A (en) * | 1995-09-22 | 1997-03-31 | Hirose Valve Kogyo Kk | Valve for dividing and collecting flow |
| CN201714731U (en) * | 2010-07-19 | 2011-01-19 | 浙江苏强格液压有限公司 | Valve rod of confluent valve for multiway valve |
| CN201763713U (en) * | 2010-05-31 | 2011-03-16 | 临海市海克力机械有限公司 | Improved preferable flow-amplification interflow valve |
| CN102864799A (en) * | 2012-10-22 | 2013-01-09 | 三一重机有限公司 | Bucket rod regeneration structure and excavator |
| CN203272299U (en) * | 2013-03-20 | 2013-11-06 | 锦州市力特缸泵阀液压制造有限公司 | Double-pump two-way confluence multiple directional control valve |
| CN203685740U (en) * | 2014-01-17 | 2014-07-02 | 安徽金达利液压有限公司 | Flow amplification valve |
| CN104235095A (en) * | 2013-08-19 | 2014-12-24 | 江苏恒立液压有限公司 | Dual-control multi-position reversing hydraulic device |
| CN204493770U (en) * | 2015-01-16 | 2015-07-22 | 徐工集团工程机械股份有限公司 | Changeover valve core, commutation connection and load sensing multi-way valve |
| CN204572602U (en) * | 2014-12-31 | 2015-08-19 | 徐州徐工挖掘机械有限公司 | Plug-in type interflow diverter valve group |
-
2015
- 2015-11-06 CN CN201510750434.8A patent/CN106678103A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0989127A (en) * | 1995-09-22 | 1997-03-31 | Hirose Valve Kogyo Kk | Valve for dividing and collecting flow |
| CN201763713U (en) * | 2010-05-31 | 2011-03-16 | 临海市海克力机械有限公司 | Improved preferable flow-amplification interflow valve |
| CN201714731U (en) * | 2010-07-19 | 2011-01-19 | 浙江苏强格液压有限公司 | Valve rod of confluent valve for multiway valve |
| CN102864799A (en) * | 2012-10-22 | 2013-01-09 | 三一重机有限公司 | Bucket rod regeneration structure and excavator |
| CN203272299U (en) * | 2013-03-20 | 2013-11-06 | 锦州市力特缸泵阀液压制造有限公司 | Double-pump two-way confluence multiple directional control valve |
| CN104235095A (en) * | 2013-08-19 | 2014-12-24 | 江苏恒立液压有限公司 | Dual-control multi-position reversing hydraulic device |
| CN203685740U (en) * | 2014-01-17 | 2014-07-02 | 安徽金达利液压有限公司 | Flow amplification valve |
| CN204572602U (en) * | 2014-12-31 | 2015-08-19 | 徐州徐工挖掘机械有限公司 | Plug-in type interflow diverter valve group |
| CN204493770U (en) * | 2015-01-16 | 2015-07-22 | 徐工集团工程机械股份有限公司 | Changeover valve core, commutation connection and load sensing multi-way valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114013417A (en) * | 2021-09-13 | 2022-02-08 | 中国北方车辆研究所 | Constant-proportion pressure distribution valve with variable width of pressure equalizing groove |
| CN114013417B (en) * | 2021-09-13 | 2023-01-13 | 中国北方车辆研究所 | Constant-proportion pressure distribution valve with variable width of pressure equalizing groove |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |
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| WD01 | Invention patent application deemed withdrawn after publication |