CN204299998U - A kind of hydraulic multitandem valve - Google Patents
A kind of hydraulic multitandem valve Download PDFInfo
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- CN204299998U CN204299998U CN201420629961.4U CN201420629961U CN204299998U CN 204299998 U CN204299998 U CN 204299998U CN 201420629961 U CN201420629961 U CN 201420629961U CN 204299998 U CN204299998 U CN 204299998U
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Abstract
The utility model relates to a kind of hydraulic valve, especially relates to a kind of hydraulic multitandem valve.Its mainly solve combine hydraulic valve existing for prior art can not simultaneously control Liang Ge executing agency work simultaneously, inefficiency, handling difference, energy consumption is high, caloric value is large etc. technical problem.The utility model comprises oil-feed control valve (1), described oil-feed control valve (1) is connected with the first work linkage control valve (2), low-pressure control valve (3), follow-up work linkage control valve (4), the oil return valve body (5) of more than 1 in turn by pipeline, the oil return oil duct T of each control valve is communicated with, and oil inlet P is communicated with oil-feed control valve (1), the first work linkage control valve (2), low-pressure control valve (3).
Description
Technical field
The utility model relates to a kind of hydraulic valve, especially relates to a kind of hydraulic multitandem valve.
Background technology
At present, the hydraulic valve of known control united reaper executing agency mainly contains: 1, banked direction control valves, and this banked direction control valves can not control Liang Ge operating mechanism work simultaneously simultaneously; Only has a safety valve, and during the work of united reaper upper header required operating pressure comparatively turn to, winder, the institution staff such as unloading time operating pressure exceed more, thus this banked direction control valves operating efficiency compared with low, handling poor, energy consumption is high, caloric value is large.2, multiple hydraulic valve, comprise ceding of Taiwan steering control valve, winder control valve, unloading control etc., system connect fluid pressure line many, install complicated, can not control Liang Ge executing agency works simultaneously simultaneously, system hydraulic slip is large, energy consumption is high, caloric value is large, and functional reliability is poor.
Utility model content
The utility model is to provide a kind of hydraulic multitandem valve, its mainly solve combine hydraulic valve existing for prior art can not simultaneously control Liang Ge executing agency work simultaneously, inefficiency, handling difference, energy consumption is high, caloric value is large etc. technical problem.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of hydraulic multitandem valve of the present utility model, comprise oil-feed control valve, described oil-feed control valve is connected with the first work linkage control valve, low-pressure control valve, follow-up work linkage control valve, the oil return valve body of more than 1 in turn by pipeline, the oil return oil duct T of each control valve is communicated with, and oil inlet P is communicated with oil-feed control valve, the first work linkage control valve, low-pressure control valve.The utility model can realize first job linkage control valve and work with any one linkage control valve that works below simultaneously, controls corresponding executing agency and works simultaneously.When performing single institution staff, 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 linkage control valve that works work simultaneously, hydraulic pump carries out fuel feeding by the flow of setting respectively to corresponding work linkage control valve simultaneously, controls the work of corresponding executing agency respectively.This banked direction control valves is provided with high-pressure safety valve and low-pressure safety valve, and high-pressure safety valve setting has the maximum working pressure joined compared with the first job of high workload pressure, and carries out overload protection to first job linkage control valve; The maximum working pressure of control valve is heard in low-pressure safety valve setting work below, and carries out overload protection to work linkage control valve below.This banked direction control valves can control Liang Ge operating mechanism work simultaneously simultaneously, and operating efficiency is high, handling good, is provided with high-pressure safety valve and low-pressure safety valve, and good energy saving property, caloric value are few.
Difficult point of the present utility model is, a kind of hydraulic multitandem valve arranges high/low pressure safety valve simultaneously, needs the flow of setting different when height system works simultaneously.In order to solve, this difficult point is ad hoc sets low pressure control valve, high pressure and low-pressure system is separated, arranges the flow of low-pressure system when flow speed control valve makes high and low pressure system work simultaneously all the time lower than high-pressure system.The design of low-pressure control valve breaches existing design concept.
As preferably, described oil-feed control valve includes oil-feed valve body, and be provided with flow speed control valve in oil-feed valve body and be communicated with oil inlet P, flow speed control valve includes speed governing spool and the first spring, and flow speed control valve is connected with high-pressure safety valve by oil circuit.High-pressure safety valve is mainly used in setting the maximum working pressure that has compared with the first work linkage control valve of high workload pressure and provides overload protection; flow speed control valve be mainly used in when first job connection and any operative below join work simultaneously time, work rearwards joins provides constant hydraulic fluid flow rate.
As preferably, the first described work linkage control valve includes the first commutation valve body, the first commutation valve rod is provided with in first commutation valve body, hydraulic lock, the first commutation valve body at the first commutation valve rod two ends is respectively equipped with the first end cap, second end cap, first commutation valve rod is connected with the second spring, second spring top is on the first spring base, the two ends valve pocket at the first commutation valve rod place is communicated with oil return oil duct T respectively, the middle valve pocket at the first commutation valve rod place is communicated with oil duct c successively, oil duct a, oil duct b, oil duct c is communicated with actuator port B, hydraulic lock place valve pocket is communicated with by oil duct b and the first valve rod place valve pocket that commutates, and hydraulic lock place valve pocket is communicated with actuator port A.
When manipulation commutation valve rod moves left, the oil duct a communicated with oil inlet P and oil duct b connects, hydraulic oil from oil inlet P enters oil duct b through oil duct a, hydraulic lock again through the right enters actuator port A, is entered one end of actuating mechanism controls oil cylinder, meanwhile by A actuator port, oil duct c and oil return oil duct T connects, hydraulic oil from the other end of actuating mechanism controls oil cylinder enters actuator port B, then the hydraulic lock through the left side communicates with oil duct c, connects oil return through oil duct c and oil return oil duct T; If handle commutation valve rod to move right, then enter the other end of actuating mechanism controls oil cylinder through actuator port B from the hydraulic oil of oil inlet P, hydraulic oil from one end of actuating mechanism controls oil cylinder enters actuator port A, through actuator port A oil return, work linkage control valve controls executing agency's work like this.
As preferably, described low-pressure control valve includes low voltage control valve body, 2/2-way valve is provided with in low voltage control valve body, 2/2-way valve includes 2/2-way spool and the 3rd spring, the end of 2/2-way spool is provided with low-pressure safety valve, the valve pocket two ends at 2/2-way spool place are communicated with oil return oil duct T, are communicated with oil duct P1, oil duct P2 in the middle part of the valve pocket at 2/2-way spool place respectively
When the first work linkage control valve does not work, during the work of follow-up work linkage control valve, oil inlet P communicates with oil duct P2, when follow-up work linkage control valve commutation work, oil duct P2 is to the pathway closure of oil return, and this hydraulic oil acts on simultaneously, promote 2/2-way spool left, oil duct P2 and oil duct P1 is connected, and the hydraulic oil from hydraulic pump all supplies follow-up work linkage control valve, and now follow-up work linkage control valve directly sets maximum working pressure by low-pressure safety valve and provides overload protection, when the first work linkage control valve and any one follow-up work linkage control valve work simultaneously, now a road hydraulic oil is communicated with oil duct P1 by the flow speed control valve of oil inlet P on oil-feed control valve, to follow-up work linkage control valve fuel feeding, and oil inlet P and oil duct P2 are closed by first linkage control valve that works, oil duct P2 is to the pathway closure of oil return, oil duct P1 communicates with oil duct P2 after 2/2-way throttling spool, this hydraulic oil acts on 2/2-way spool right-hand member, promote 2/2-way spool to left movement, oil duct P1 and oil duct P2 is connected, thus realize the first work linkage control valve set maximum working pressure by the high-pressure safety valve on oil-feed control valve and safeguard protection is provided, follow-up work linkage control valve sets maximum working pressure by the low-pressure safety valve on low-pressure control valve and provides overload protection.
As preferably, described follow-up work linkage control valve includes the second commutation valve body, the second commutation valve rod is provided with in second commutation valve body, bidirectional hydraulic lock, the second commutation valve body at the second commutation valve rod two ends is respectively equipped with the 3rd end cap, 4th end cap, second commutation valve rod is connected with the 4th spring, 4th spring top is on the second spring base, the two ends valve pocket at the second commutation valve rod place is communicated with oil return oil duct T respectively, the middle valve pocket at the first commutation valve rod place is communicated with oil duct e successively, oil duct P1, oil duct d, the two ends valve pocket at bidirectional hydraulic lock place is respectively by oil duct e, oil duct d and the second valve rod place valve pocket that commutates is communicated with, and be communicated with actuator port A respectively to the two ends valve pocket at hydraulic lock place, actuator port B.
When manipulation commutation valve rod moves left, the oil duct P1 communicated with oil inlet P and oil duct d connects, hydraulic oil from oil inlet P enters oil duct d through oil duct P1, hydraulic lock again through the right enters actuator port A, is entered one end of actuating mechanism controls oil cylinder, meanwhile by actuator port A, oil duct e and oil return oil duct T connects, hydraulic oil from the other end of actuating mechanism controls oil cylinder enters actuator port B, then the hydraulic lock through the left side communicates with oil duct e, connects oil return through oil duct e and oil return oil duct T; If handle commutation valve rod to move right, then enter the other end of actuating mechanism controls oil cylinder through actuator port B from the hydraulic oil of oil inlet P, hydraulic oil from one end of actuating mechanism controls oil cylinder enters actuator port A, through actuator port A oil return, work linkage control valve controls executing agency's work like this.
Therefore, the utility model can realize first job linkage control valve and work with any operative linkage control valve below simultaneously, can solve that existing hydraulic valve can not control Liang Ge executing agency works simultaneously simultaneously, inefficiency, handling difference, energy consumption are high, caloric value, simple and reasonable for structure well.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of principle schematic of the present utility model;
Accompanying drawing 2 is a kind of structural representations of the utility model oil-feed control valve;
Accompanying drawing 3 is that the utility model first works a kind of structural representation of linkage control valve;
Accompanying drawing 4 is a kind of structural representations of the utility model low-pressure control valve;
Accompanying drawing 5 is a kind of structural representations of the utility model follow-up work linkage control valve.
Parts in figure, position and numbering: oil-feed control valve 1, first work 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 spool 8, first spring 9, high-pressure safety valve 10, first commutation valve body 11, first commutation valve rod 12, hydraulic lock 13, first end cap 14, second end cap 15, second spring 16, first spring base 17, low voltage control valve body 18, 2/2-way valve 19, 2/2-way spool 20, 3rd spring 21, low-pressure safety valve 22, second commutation valve body 23, second commutation valve rod 24, bidirectional hydraulic lock 25, 3rd end cap 26, 4th end cap 27, 4th spring 28, second spring base 29.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of hydraulic multitandem valve of this example, as Fig. 1, comprise oil-feed control valve 1, oil-feed control valve 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 by pipeline, the oil return oil duct T of each control valve is communicated with, and oil inlet P is communicated with the work of oil-feed control valve 1, first linkage control valve 2, low-pressure control valve 3.
As Fig. 2, oil-feed control valve includes oil-feed valve body 6, is provided with flow speed control valve 7 and is communicated with oil inlet P in oil-feed valve body, and flow speed control valve includes speed governing spool 8 and the first spring 9, and flow speed control valve is connected with high-pressure safety valve 10 by oil circuit.
As Fig. 3, first work linkage control valve 2 includes the first commutation valve body 11, the first commutation valve rod 12 is provided with in first commutation valve body, hydraulic lock 13, the first commutation valve body at the first commutation valve rod two ends is respectively equipped with the first end cap 14, second end cap 15, first commutation valve rod is connected with the second spring 16, second spring top is on the first spring base 17, the two ends valve pocket at the first commutation valve rod place is communicated with oil return oil duct T respectively, the middle valve pocket at the first commutation valve rod place is communicated with oil duct c successively, oil duct a, oil duct b, oil duct c is communicated with actuator port B, hydraulic lock place valve pocket is communicated with by oil duct b and the first valve rod place valve pocket that commutates, and hydraulic lock place valve pocket is communicated with actuator port A.
As Fig. 4, low-pressure control valve 3 includes low voltage control valve body 18,2/2-way valve 19 is provided with in low voltage control valve body, 2/2-way valve includes 2/2-way spool 20 and the 3rd spring 21, the end of 2/2-way spool is provided with low-pressure safety valve 22, the valve pocket two ends at 2/2-way spool place are communicated with oil return oil duct T, are communicated with oil duct P1, oil duct P2 in the middle part of the valve pocket at 2/2-way spool place respectively
As Fig. 5, follow-up work linkage control valve 4 includes the second commutation valve body 23, the second commutation valve rod 24 is provided with in second commutation valve body, bidirectional hydraulic lock 25, the second commutation valve body at the second commutation valve rod two ends is respectively equipped with the 3rd end cap 26, 4th end cap 27, second commutation valve rod is connected with the 4th spring 28, 4th spring top is on the second spring base 29, the two ends valve pocket at the second commutation valve rod place is communicated with oil return oil duct T respectively, the middle valve pocket at the first commutation valve rod place is communicated with oil duct e successively, oil duct P1, oil duct d, the two ends valve pocket at bidirectional hydraulic lock place is respectively by oil duct e, oil duct d and the second valve rod place valve pocket that commutates is communicated with, and be communicated with actuator port A respectively to the two ends valve pocket at hydraulic lock place, actuator port B.
1, when hydraulic system does not work, each work linkage control valve is all in neutral position, and the hydraulic oil that hydraulic pump provides is through banked direction control valves oil return.
2, when hydraulic system is in running order, one or two work linkage control valve commutation work, oil inlet P is closed to the oil circuit of oil return oil duct T, from the hydraulic oil of hydraulic pump through the work linkage control valve of work at present to operating mechanism's fuel feeding.1) when the first work linkage control valve 2 separately commutation work time, close from the hydraulic oil of hydraulic pump and oil return circuit, wherein a road hydraulic oil works linkage control valve 2 to respective execution mechanisms fuel feeding through first, control respective execution mechanisms works, another road hydraulic oil is through flow speed control valve 7, low-pressure control valve 3 leads to each follow-up work linkage control valve 4 below, now this road hydraulic oil only has seldom a part of oil return after 2/2-way valve 19 throttling on low-pressure control valve 3, thus nearly all hydraulic oil from hydraulic pump is all to operating mechanism's fuel feeding of work at present, set maximum working pressure by the high-pressure safety valve 10 on oil-feed control valve 1 and overload protection is provided.2) when the independent commutation work of the follow-up work linkage control valve 4 of below; close from the hydraulic oil of hydraulic pump and oil return circuit; wherein a road hydraulic oil is 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 to be moved to the left; open 2/2-way valve 19; collaborate with that road hydraulic oil through flow speed control valve 7; to the work linkage control valve fuel feeding of work at present; control executing agency's work of work at present, now set maximum working pressure by the low-pressure safety valve 22 on low-pressure control valve 3 and overload protection is provided.3) when the first work linkage control valve 2 works with any one follow-up work linkage control valve 4 simultaneously, wherein a road hydraulic oil is through the work linkage control valve fuel feeding of flow speed control valve 7 work at present rearwards, be used for controlling the work of corresponding executing agency, another road hydraulic oil enters the first work linkage control valve 2, controls the work of corresponding executing agency.Now the first work linkage control valve 2 is set maximum working pressure by the high-pressure safety valve 10 on oil-feed control valve 1 and is provided overload protection.After 2/2-way valve 19 throttling, the right-hand member of 2/2-way valve is acted on through speed governing Na mono-road hydraulic oil some; promote 2/2-way valve to be moved to the left; open 2/2-way valve; communicate with low-pressure safety valve 22 oil-in on low-pressure control valve 3, thus the maximum working pressure of follow-up work linkage control valve 4 is below set by low-pressure safety valve and provides overload protection.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed among the scope of the claims of the present utility model.
Claims (5)
1. a hydraulic multitandem valve, comprise oil-feed control valve (1), it is characterized in that described oil-feed control valve (1) is connected with the first work linkage control valve (2), low-pressure control valve (3), follow-up work linkage control valve (4), the oil return valve body (5) of more than 1 in turn by pipeline, the oil return oil duct T of each control valve is communicated with, and oil inlet P is communicated with oil-feed control valve (1), the first work linkage control valve (2), low-pressure control valve (3).
2. a kind of hydraulic multitandem valve according to claim 1, it is characterized in that described oil-feed control valve (1) includes oil-feed valve body (6), be provided with flow speed control valve (7) in oil-feed valve body and be communicated with oil inlet P, flow speed control valve includes speed governing spool (8) and the first spring (9), and flow speed control valve is connected with high-pressure safety valve (10) by oil circuit.
3. a kind of hydraulic multitandem valve according to claim 1 and 2, it is characterized in that the first described work linkage control valve (2) includes the first commutation valve body (11), the first commutation valve rod (12) is provided with in first commutation valve body, hydraulic lock (13), the first commutation valve body at the first commutation valve rod two ends is respectively equipped with the first end cap (14), second end cap (15), first commutation valve rod is connected with the second spring (16), second spring top is on the first spring base (17), the two ends valve pocket at the first commutation valve rod place is communicated with oil return oil duct T respectively, the middle valve pocket at the first commutation valve rod place is communicated with oil duct c successively, oil duct a, oil duct b, oil duct c is communicated with actuator port B, hydraulic lock place valve pocket is communicated with by oil duct b and the first valve rod place valve pocket that commutates, and hydraulic lock place valve pocket is communicated with actuator port A.
4. a kind of hydraulic multitandem valve according to claim 1 and 2, it is characterized in that described low-pressure control valve (3) includes low voltage control valve body (18), 2/2-way valve (19) is provided with in low voltage control valve body, 2/2-way valve includes 2/2-way spool (20) and the 3rd spring (21), the end of 2/2-way spool is provided with low-pressure safety valve (22), the valve pocket two ends at 2/2-way spool place are communicated with oil return oil duct T, are communicated with oil duct P1, oil duct P2 in the middle part of the valve pocket at 2/2-way spool place respectively.
5. a kind of hydraulic multitandem valve according to claim 1 and 2, it is characterized in that described follow-up work linkage control valve (4) includes the second commutation valve body (23), the second commutation valve rod (24) is provided with in second commutation valve body, bidirectional hydraulic lock (25), the second commutation valve body at the second commutation valve rod two ends is respectively equipped with the 3rd end cap (26), 4th end cap (27), second commutation valve rod is connected with the 4th spring (28), 4th spring top is on the second spring base (29), the two ends valve pocket at the second commutation valve rod place is communicated with oil return oil duct T respectively, the middle valve pocket at the first commutation valve rod place is communicated with oil duct e successively, oil duct P1, oil duct d, the two ends valve pocket at bidirectional hydraulic lock place is respectively by oil duct e, oil duct d and the second valve rod place valve pocket that commutates is communicated with, and be communicated with actuator port A respectively to the two ends valve pocket at hydraulic lock place, actuator port B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629961.4U CN204299998U (en) | 2014-10-29 | 2014-10-29 | A kind of hydraulic multitandem valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420629961.4U CN204299998U (en) | 2014-10-29 | 2014-10-29 | A kind of hydraulic multitandem valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299998U true CN204299998U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420629961.4U Expired - Fee Related CN204299998U (en) | 2014-10-29 | 2014-10-29 | A kind of hydraulic multitandem valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN204299998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454722A (en) * | 2014-10-29 | 2015-03-25 | 浙江阿凡特精密设备制造有限公司 | Hydraulic multi-way valve |
-
2014
- 2014-10-29 CN CN201420629961.4U patent/CN204299998U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454722A (en) * | 2014-10-29 | 2015-03-25 | 浙江阿凡特精密设备制造有限公司 | Hydraulic multi-way valve |
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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: 20150429 Termination date: 20191029 |