CN104454722B - A kind of hydraulic multitandem valve - Google Patents
A kind of hydraulic multitandem valve Download PDFInfo
- Publication number
- CN104454722B CN104454722B CN201410587249.7A CN201410587249A CN104454722B CN 104454722 B CN104454722 B CN 104454722B CN 201410587249 A CN201410587249 A CN 201410587249A CN 104454722 B CN104454722 B CN 104454722B
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- Prior art keywords
- valve
- oil
- control valve
- commutation
- oil duct
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- 239000000446 fuel Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 124
- 239000010720 hydraulic oil Substances 0.000 description 22
- 230000007246 mechanism Effects 0.000 description 15
- 239000012530 fluid Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Abstract
The present invention relates to a kind of hydraulic valve, more particularly, to a kind of hydraulic multitandem valve.It is mainly solve combine hydraulic valve existing for prior art can not be while the technical problem for controlling the work simultaneously of Liang Ge executing agencies, inefficiency, handling difference, high energy consumption, caloric value big etc..The present invention is included into oil control valve（1）, described enters oil control valve（1）First work linkage control valve is connected with turn by pipeline（2）, low-pressure control valve（3）, the follow-up work linkage control valve of more than 1（4）, oil return valve body（5）, the oil return oil duct T connections of valve are respectively controlled, oil inlet P is connected into oil control valve（1）, first work linkage control valve（2）, low-pressure control valve（3）.
Description
Technical field
The present invention relates to a kind of hydraulic valve, more particularly, to a kind of hydraulic multitandem valve.
Background technology
At present, the hydraulic valve of known control united reaper executing agency mainly has：1st, banked direction control valves, the banked direction control valves is not
Liang Ge operating mechanisms can be simultaneously controlled to work simultaneously；Only one of which safety valve, and it is required during the work of united reaper upper header
Operating pressure when operating pressure works compared with mechanisms such as steering, winder, unloadings is higher by more, thus the banked direction control valves operating efficiency
Relatively low, handling poor, high energy consumption, caloric value are big.2nd, multiple hydraulic valves, including ceding of Taiwan steering control valve, winder control valve,
Unloading control etc., system connects many fluid pressure lines, installation complexity, can not simultaneously control Liang Ge executing agencies while works, system
Hydraulic slip is big, and high energy consumption, caloric value are big, and functional reliability is poor.
The content of the invention
The present invention is to provide a kind of hydraulic multitandem valve, and it is mainly the combine liquid solved existing for prior art
What pressure valve can not simultaneously control the work simultaneously of Liang Ge executing agencies, inefficiency, handling difference, high energy consumption, caloric value big etc.
Technical problem.
Above-mentioned technical problem of the invention is mainly what is be addressed by following technical proposals：
A kind of hydraulic multitandem valve of the invention, including enter oil control valve, the described oil control valve that enters is connected successively by pipeline
The first work linkage control valve, low-pressure control valve, the follow-up work linkage control valve of more than 1, oil return valve body are connected to, each control valve
Oil return oil duct T is connected, and oil inlet P is connected into oil control valve, the first work linkage control valve, low-pressure control valve.The present invention can be realized
First job linkage control valve works simultaneously with any one work linkage control valve below, controls corresponding executing agency work simultaneously
Make.When single mechanism's work is performed, the hydraulic oil from hydraulic pump all supplies the work linkage control valve of work at present, control
Current executing agency's work, when first job linkage control valve and other any one work linkage control valves work simultaneously, liquid
Press pump carries out fuel feeding simultaneously to corresponding work linkage control valve respectively by the flow of setting, and corresponding executing agency's work is controlled respectively
Make.The banked direction control valves is provided with high-pressure safety valve and low-pressure safety valve, and high-pressure safety valve setting has first compared with high workload pressure
Work the maximum working pressure for joining, and carries out overload protection to first job linkage control valve；Low-pressure safety valve sets below
The maximum working pressure of control valve is heard in work, and carries out overload protection to work linkage control valve below.The banked direction control valves can be simultaneously
Control Liang Ge operating mechanisms work simultaneously, high working efficiency, handling good, are provided with high-pressure safety valve and low-pressure safety valve, energy-conservation
The good, caloric value of property is few.
Difficult point of the invention is that a kind of hydraulic multitandem valve sets high/low pressure safety valve simultaneously, and height system works simultaneously
When need the flow of setting different.To solve, the difficult point is ad hoc to set low pressure control valve, and high pressure and low-pressure system are separated, and sets and adjusts
The flow consistently lower than high-pressure system of low-pressure system fast valve causes that high and low pressure system works simultaneously when.The design of low-pressure control valve is dashed forward
Existing design concept is broken.
Preferably, the described oil control valve that enters includes oil-feed valve body, flow speed control valve connection oil-feed is provided with inlet valve body
Mouth P, flow speed control valve includes speed governing valve element and the first spring, and flow speed control valve is connected with high-pressure safety valve by oil circuit.High-pressure safety valve
Being mainly used in setting has the maximum working pressure of the linkage control valve that worked compared with the first of high workload pressure and provides overload protection,
Flow speed control valve be mainly used in when first job join with any operative below in conjunction with when work when, work connection rearwards provides permanent
Fixed hydraulic fluid flow rate.
Preferably, the first described work linkage control valve includes the first commutation valve body, it is provided with the first reversal valve body
First commutation valve rod, hydraulic lock, the first end cap, the second end are respectively equipped with the first commutation valve body at the first commutation valve rod two ends
Lid, the first commutation valve rod is connected with second spring, and second spring is withstood on the first spring base, the two ends where the first commutation valve rod
Valve pocket has been respectively communicated with oil return oil duct T, and the middle valve pocket where the first commutation valve rod has been sequentially communicated oil duct c, oil duct a, oil duct
B, oil duct c are connected valve pocket where actuator port B, hydraulic lock and are connected with valve pocket where the first commutation valve rod by oil duct b, and liquid
Valve pocket connection actuator port A where pressure lock.
Moved to the left when commutation valve rod is manipulated, the oil duct a communicated with oil inlet P and oil duct b is connected, from oil inlet P
Hydraulic oil through oil duct a enter oil duct b, then through the right hydraulic lock enter actuator port A, executing agency is entered by A actuator ports
One end of control cylinder, at the same time, oil duct c and oil return oil duct T is connected, the liquid of the other end from actuating mechanism controls oil cylinder
Force feed enters actuator port B, then hydraulic lock through the left side is communicated with oil duct c, through oil duct c and oil return oil duct T connection oil returns；If
Manipulate commutation valve rod to move right, then the hydraulic oil from oil inlet P enters the another of actuating mechanism controls oil cylinder through actuator port B
One end, the hydraulic oil of the one end from actuating mechanism controls oil cylinder enters actuator port A, and through actuator port A oil returns, work joint control
Valve processed controls executing agency to work like this.
Preferably, described low-pressure control valve includes low voltage control valve body, two two are provided with low-pressure control valve body
Port valve, 2/2-way valve includes 2/2-way valve element and the 3rd spring, and the end of 2/2-way valve element is provided with low-pressure safety valve,
Valve pocket two ends connection oil return oil duct T where 2/2-way valve element, the valve pocket middle part where 2/2-way valve element has been respectively communicated with
Oil duct P1, oil duct P2,
When the first work linkage control valve does not work, when follow-up work linkage control valve works, oil inlet P is communicated with oil duct P2,
When follow-up work linkage control valve commutation work, the passage of oil duct P2 to oil return is closed, while this hydraulic oil is acted on, is pushed away to the left
Dynamic 2/2-way valve element, connects oil duct P2 and oil duct P1, and the hydraulic oil from hydraulic pump all supplies follow-up work joint control system
Valve, now follow-up work linkage control valve is direct sets maximum working pressure and provides overload protection by low-pressure safety valve；When first
Work linkage control valve and any one follow-up work linkage control valve work simultaneously when, now all the way hydraulic oil by oil inlet P through oil-feed
Flow speed control valve on control valve is communicated with oil duct P1, gives follow-up work linkage control valve fuel feeding, and oil inlet P and oil duct P2 are by the first work
Make linkage control valve closing, the passage of oil duct P2 to oil return is closed, and oil duct P1 is communicated after 2/2-way throttling spool with oil duct P2,
This hydraulic oil acts on 2/2-way valve element right-hand member, promotes 2/2-way valve element to left movement, connects oil duct P1 and oil duct P2,
Thus realize that high-pressure safety valve of the first work linkage control valve by entering on oil control valve sets maximum working pressure and provide safety
Protection, follow-up work linkage control valve is by the low-pressure safety valve setting maximum working pressure on low-pressure control valve and provides overload guarantor
Shield.
Preferably, described follow-up work linkage control valve includes the second commutation valve body, it is provided with the second reversal valve body
Second commutation valve rod, bidirectional hydraulic lock, the 3rd end cap, the 4th are respectively equipped with the second commutation valve body at the second commutation valve rod two ends
End cap, the second commutation valve rod is connected with the 4th spring, the 4th spring top on second spring seat, where the second commutation valve rod two
End valve chamber has been respectively communicated with oil return oil duct T, and the middle valve pocket where the first commutation valve rod has been sequentially communicated oil duct e, oil duct P1, oil
Road d, the two ends valve pocket where bidirectional hydraulic lock is connected by oil duct e, oil duct d with valve pocket where the second commutation valve rod respectively, and
And it is respectively communicated with actuator port A, actuator port B to the two ends valve pocket where hydraulic lock.
Moved to the left when commutation valve rod is manipulated, the oil duct P1 communicated with oil inlet P and oil duct d is connected, from oil inlet P
Hydraulic oil through oil duct P1 enter oil duct d, then through the right hydraulic lock enter actuator port A, executing agency is entered by actuator port A
One end of control cylinder, at the same time, oil duct e and oil return oil duct T is connected, the liquid of the other end from actuating mechanism controls oil cylinder
Force feed enters actuator port B, then hydraulic lock through the left side is communicated with oil duct e, through oil duct e and oil return oil duct T connection oil returns；If
Manipulate commutation valve rod to move right, then the hydraulic oil from oil inlet P enters the another of actuating mechanism controls oil cylinder through actuator port B
One end, the hydraulic oil of the one end from actuating mechanism controls oil cylinder enters actuator port A, and through actuator port A oil returns, work joint control
Valve processed controls executing agency to work like this.
Therefore, the present invention can realize that first job linkage control valve works simultaneously with any operative linkage control valve below,
Existing hydraulic valve can well be solved can not be while control Liang Ge executing agencies work, inefficiency, handling difference, energy simultaneously
Consumption is high, caloric value, simple and reasonable for structure.
Brief description of the drawings
Accompanying drawing 1 is a kind of principle schematic of the invention；
Accompanying drawing 2 is a kind of structural representation that the present invention enters oil control valve；
Accompanying drawing 3 is a kind of structural representation of the work linkage control valve of the present invention first；
Accompanying drawing 4 is a kind of structural representation of low-pressure control valve of the present invention；
Accompanying drawing 5 is a kind of structural representation of follow-up work linkage control valve of the present invention.
Parts, position and numbering in figure：Enter the work of oil control valve 1, first linkage control valve 2, low-pressure control valve 3, follow-up
Work linkage control valve 4, oil return valve body 5, oil-feed valve body 6, flow speed control valve 7, speed governing valve element 8, the first spring 9, high-pressure safety valve 10, the
The one commutation commutation of valve body 11, first valve rod 12, hydraulic lock 13, the first end cap 14, the second end cap 15, second spring 16, the first bullet
Spring abutment 17, low voltage control valve body 18,2/2-way valve 19,2/2-way valve element 20, the 3rd spring 21, low-pressure safety valve 22,
The two commutation commutation of valve bodies 23, second valve rods 24, bidirectional hydraulic lock 25, the 3rd end cap 26, the 4th end cap 27, the 4th spring 28, the
Two spring bases 29.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment：A kind of hydraulic multitandem valve of this example, such as Fig. 1, including enter oil control valve 1, enter oil control valve by pipeline
It is connected with the first work linkage control valve 2, low-pressure control valve 3,3 follow-up work linkage control valves 4, oil return valve bodies 5 in turn, each control
The oil return oil duct T connections of valve, oil inlet P is connected into the work of oil control valve 1, first linkage control valve 2, low-pressure control valve 3.
Such as Fig. 2, enter oil control valve and include oil-feed valve body 6, the connection oil inlet P of flow speed control valve 7, speed governing are provided with inlet valve body
Valve includes the spring 9 of speed governing valve element 8 and first, and flow speed control valve is connected with high-pressure safety valve 10 by oil circuit.
As Fig. 3, the first work linkage control valve 2 include the first commutation valve body 11, being provided with first in the first reversal valve body changes
To valve rod 12, hydraulic lock 13, the first end cap 14, the second end cap are respectively equipped with the first commutation valve body at the first commutation valve rod two ends
15, the first commutation valve rod is connected with second spring 16, and second spring is withstood on the first spring base 17, where the first commutation valve rod
Two ends valve pocket has been respectively communicated with oil return oil duct T, the middle valve pocket where the first commutation valve rod be sequentially communicated oil duct c, oil duct a,
Oil duct b, oil duct c are connected valve pocket where actuator port B, hydraulic lock and are connected with valve pocket where the first commutation valve rod by oil duct b, and
And valve pocket connection actuator port A where hydraulic lock.
Such as Fig. 4, low-pressure control valve 3 includes low voltage control valve body 18,2/2-way valve 19 is provided with low-pressure control valve body,
2/2-way valve includes the spring 21 of 2/2-way valve element 20 and the 3rd, and the end of 2/2-way valve element is provided with low-pressure safety valve
22, the valve pocket two ends connection oil return oil duct T where 2/2-way valve element, the valve pocket middle part where 2/2-way valve element is respectively communicated with
There are oil duct P1, oil duct P2,
As Fig. 5, follow-up work linkage control valve 4 include the second commutation valve body 23, being provided with second in the second reversal valve body changes
To valve rod 24, bidirectional hydraulic lock 25, the 3rd end cap the 26, the 4th is respectively equipped with the second commutation valve body at the second commutation valve rod two ends
End cap 27, the second commutation valve rod is connected with the 4th spring 28, the 4th spring top on second spring seat 29, the second commutation valve rod institute
Two ends valve pocket be respectively communicated with oil return oil duct T, the middle valve pocket where the first commutation valve rod has been sequentially communicated oil duct e, oil
Road P1, oil duct d, the two ends valve pocket where bidirectional hydraulic lock is respectively by oil duct e, oil duct d and valve pocket where the second commutation valve rod
Connection, and it is respectively communicated with actuator port A, actuator port B to the two ends valve pocket where hydraulic lock.
1st, when hydraulic system does not work, each work linkage control valve all in neutral position, the liquid that hydraulic pump is provided
Force feed is through banked direction control valves oil return.
2nd, when hydraulic system is in running order, one or two work linkage control valve commutation work, oil inlet P to return
The oil circuit of oil duct T is closed, and the hydraulic oil from hydraulic pump is through the work linkage control valve of work at present to operating mechanism's fuel feeding.1）
When the first work 2 independent commutation work of linkage control valve, the hydraulic oil from hydraulic pump is closed with oil return circuit, wherein liquid all the way
Force feed is through the first work linkage control valve 2 to respective execution mechanisms fuel feeding, control respective execution mechanisms work, another road hydraulic oil warp
Flow speed control valve 7, low-pressure control valve 3 lead to each follow-up work linkage control valve 4 below, and now this road hydraulic oil only has little some
Through on low-pressure control valve 3 2/2-way valve 19 throttle after oil return, thus nearly all hydraulic oil from hydraulic pump all to work as
Operating mechanism's fuel feeding of preceding work, sets maximum working pressure and provides overload by the high-pressure safety valve 10 entered on oil control valve 1
Protection.2）When a follow-up work 4 independent commutation work of linkage control valve below, hydraulic oil and oil return oil from hydraulic pump
Road is closed, wherein all the way hydraulic oil through flow speed control valve 7, another road acts on the right-hand member of 2/2-way valve 19, promote 2/2-way valve
19 are moved to the left, and open 2/2-way valve 19, collaborate with that road hydraulic oil through flow speed control valve 7, to the work joint control of work at present
Valve fuel feeding processed, controls executing agency's work of work at present, now sets highest by the low-pressure safety valve 22 on low-pressure control valve 3
Operating pressure simultaneously provides overload protection.3）When simultaneously the first work linkage control valve 2 and any one follow-up work linkage control valve 4 work
When, wherein all the way hydraulic oil through the rearwards work at present of flow speed control valve 7 work linkage control valve fuel feeding, for controlling corresponding execution
Mechanism works, and another road hydraulic oil enters the first work linkage control valve 2, controls corresponding executing agency's work.Now first
Connection work linkage control valve 2 sets maximum working pressure and provides overload protection by the high-pressure safety valve 10 entered on oil control valve 1.Through
Speed governing that hydraulic oil is a part of all the way throttled through 2/2-way valve 19 after act on the right-hand member of 2/2-way valve, promote two two
Port valve is moved to the left, and opens 2/2-way valve, is communicated with the oil inlet of low-pressure safety valve 22 on low-pressure control valve 3, thus below
The maximum working pressure of follow-up work linkage control valve 4 set by low-pressure safety valve and overload protection be provided.
Specific embodiment of the invention is the foregoing is only, but architectural feature of the invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among the scope of the claims of the invention by the change or modification made.
Claims (3)
1. a kind of hydraulic multitandem valve, including enter oil control valve（1）, it is characterised in that described enters oil control valve（1）By pipeline
It is connected with the first work linkage control valve in turn（2）, low-pressure control valve（3）, the follow-up work linkage control valve of more than 1（4）, oil return
Valve body（5）, the oil return oil duct T connections of valve are respectively controlled, oil inlet P is connected into oil control valve（1）, first work linkage control valve（2）、
Low-pressure control valve（3）；Described low-pressure control valve（3）Include low voltage control valve body（18）, two are provided with low-pressure control valve body
Position two-way valve（19）, 2/2-way valve includes 2/2-way valve element（20）With the 3rd spring（21）, the end of 2/2-way valve element
Portion is provided with low-pressure safety valve（22）, the valve pocket two ends connection oil return oil duct T where 2/2-way valve element, where 2/2-way valve element
Valve pocket middle part be respectively communicated with oil duct P1, oil duct P2;The first described work linkage control valve（2）Include the first commutation valve body
（11）, the first commutation valve rod is provided with the first reversal valve body（12）, hydraulic lock（13）, first commutation at the first commutation valve rod two ends
The first end cap is respectively equipped with valve body（14）, the second end cap（15）, first commutation valve rod be connected with second spring（16）, the second bullet
Spring withstands on the first spring base（17）On, the two ends valve pocket where the first commutation valve rod has been respectively communicated with oil return oil duct T, the first commutation
Middle valve pocket where valve rod has been sequentially communicated oil duct c, oil duct a, oil duct b, oil duct c connection actuator port B, valve where hydraulic lock
Chamber is connected by oil duct b with valve pocket where the first commutation valve rod, and valve pocket connection actuator port A where hydraulic lock.
2. a kind of hydraulic multitandem valve according to claim 1, it is characterised in that described enters oil control valve（1）Include into
Fuel tap body（6）, flow speed control valve is provided with inlet valve body（7）Connection oil inlet P, flow speed control valve includes speed governing valve element（8）And first bullet
Spring（9）, flow speed control valve is connected with high-pressure safety valve by oil circuit（10）.
3. a kind of hydraulic multitandem valve according to claim 1 and 2, it is characterised in that described follow-up work linkage control valve
（4）Include the second commutation valve body（23）, the second commutation valve rod is provided with the second reversal valve body（24）, bidirectional hydraulic lock（25）,
The 3rd end cap is respectively equipped with the second commutation valve body at the second commutation valve rod two ends（26）, the 4th end cap（27）, the second reversal valve
Bar is connected with the 4th spring（28）, the 4th spring top is in second spring seat（29）On, the two ends valve pocket where the second commutation valve rod
Oil return oil duct T has been respectively communicated with it, the middle valve pocket where the first commutation valve rod has been sequentially communicated oil duct e, oil duct P1, oil duct d, double
Connected with valve pocket where the second commutation valve rod by oil duct e, oil duct d respectively to the two ends valve pocket where hydraulic lock, and to liquid
Two ends valve pocket where pressing lock is respectively communicated with actuator port A, actuator port B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587249.7A CN104454722B (en) | 2014-10-29 | 2014-10-29 | A kind of hydraulic multitandem valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587249.7A CN104454722B (en) | 2014-10-29 | 2014-10-29 | A kind of hydraulic multitandem valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454722A CN104454722A (en) | 2015-03-25 |
| CN104454722B true CN104454722B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410587249.7A Active CN104454722B (en) | 2014-10-29 | 2014-10-29 | A kind of hydraulic multitandem valve |
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| Country | Link |
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| CN (1) | CN104454722B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370655B (en) * | 2015-12-16 | 2017-08-29 | 日照海卓液压有限公司 | The double oil circuit electric-hydraulic proportion overflowing and speed valves of multi-mode |
| CN106382273A (en) * | 2016-11-08 | 2017-02-08 | 合肥协力液压科技有限公司 | Reversing valve integrated with hydraulic control locks |
| CN107218413A (en) * | 2017-07-05 | 2017-09-29 | 圣邦集团有限公司 | A kind of banked direction control valves with hydraulic pressure lock function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201574992U (en) * | 2009-11-10 | 2010-09-08 | 三一重工股份有限公司 | Multi-way valve, hydraulic device and concrete pump vehicle |
| CN102287413B (en) * | 2011-09-29 | 2014-01-01 | 卢宇 | Proportional multi-way valve with turning load feedback function |
| CN103711740B (en) * | 2013-12-25 | 2016-02-10 | 新魁液压技术有限公司 | A kind of combine-harvester hydraulic control system |
| CN103742682B (en) * | 2014-01-24 | 2017-01-25 | 浙江海宏液压科技股份有限公司 | Multiway valve for harvesters |
| CN103727267B (en) * | 2014-01-24 | 2016-02-10 | 浙江海宏液压科技股份有限公司 | Reaper multi-way valve |
| CN204299998U (en) * | 2014-10-29 | 2015-04-29 | 浙江阿凡特精密设备制造有限公司 | A kind of hydraulic multitandem valve |
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Address after: No. 4387 Jianshe Fourth Road, Xinjie Street, Xiaoshan District, Hangzhou City, Zhejiang Province, 311217 Patentee after: Zhejiang Avant Hydraulic Technology Co.,Ltd. Address before: 311217 Yuansha Village, Xinjie Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG AFANTE PREC EQUIPMENT MFG Co.,Ltd. |
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