CN202040138U - Multichannel reversing valve - Google Patents
Multichannel reversing valve Download PDFInfo
- Publication number
- CN202040138U CN202040138U CN2011201185384U CN201120118538U CN202040138U CN 202040138 U CN202040138 U CN 202040138U CN 2011201185384 U CN2011201185384 U CN 2011201185384U CN 201120118538 U CN201120118538 U CN 201120118538U CN 202040138 U CN202040138 U CN 202040138U
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- oil
- valve
- retreat
- control mouthful
- hydraulic motor
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Abstract
The utility model discloses a multichannel reversing valve which comprises an oil in-return valve body component and reversing plate valves and is the plate-type combined valve formed by combining a plurality of reversing valves and a plurality of overflow valves, wherein the reversing valves and the overflow valves can be combined into a multichannel valve group within 10 connections according to the requirement of a working mechanism. The multichannel reversing valve has the advantages that the working pressure is high, the structure is compact, the performance of a safety valve is good, the reliability is high, the universality is strong, etc. In addition, overload valves or oil filling valves can be arranged between any working cavity and any oil return cavity according to the requirement of a user, so as to form a parallel oil way, a series oil way or a series-parallel oil way; and the multi channel reversing valve has various slide valve functions and the positioning, resetting and controlling methods, can use a gap bridge valve body or an external oil port to provide oil source to other mechanisms and widely meets the requirements of different main machines.
Description
Technical field
The utility model relates to a kind of multiple directional control valve, mainly is applicable to the hydraulic system of engineering machinery such as loader, mini-excavator, rig.
Technical background
Selector valve is the valve class that changes the break-make relation that is connected the last oil duct of valve body by the relative movement between spool and the valve body.The combination brake switch and proporting that multiple directional control valve is is main body by two above selector valves.According to different job requirements, can also make up subsidiary valves such as safety overflow valve, one-way valve and Fill valve.
Present domestic multiple directional control valve, valve body is big, the intensification degree is low, difficulty is installed, and asphalt channel is little, obstruction easily, the pressure loss is big, and energy consumption is big, and system easily generates heat, and working life is low, influences user's ordinary production, and causes economic loss easily.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of working pressure height, compact structure, the safety valve performance is good, reliability is high, the multiple directional control valve of highly versatile.
For achieving the above object, a kind of multiple directional control valve that the utility model provides, comprise oil inlet and oil return valve body parts, commutation plate valve, wherein, described oil inlet and oil return valve body parts is made up of the big pump oil inlet P of series connection gear pump, the little pump oil inlet P 1 of series connection gear pump, total oil return inlet T, and fluid flows into selector valve a, b by big pump oil inlet P, simultaneously, fluid flows into selector valve c by little pump oil inlet P 1, and flows back to fuel tank by total oil return inlet T;
Described commutation plate valve 2 is by selector valve a, b, c forms, selector valve a comprises oil hydraulic motor clockwise and anticlockwise control mouthful A1, B1, selector valve b comprises fast advance and retreat control mouthful A2, B2, selector valve c comprises normal advance and retreat control mouthful A3, B3, wherein, described clockwise and anticlockwise control mouthful A1, B1 connects oil hydraulic motor, fluid is by clockwise and anticlockwise control mouthful A1, B1 flows into oil hydraulic motor, be the oil hydraulic motor fuel feeding, the clockwise and anticlockwise of control oil hydraulic motor, described fast advance and retreat control mouthful A2, B2 connects quick drilling rod, oil hydraulic motor is controlled the fast advance and retreat of quick drilling rod by the series connection gear, described normal advance and retreat control mouthful A3, B3 connects normal advance and retreat drilling rod, and oil hydraulic motor is also controlled the normal advance and retreat of normal drilling rod by the series connection gear.
According to a kind of preferred version of the present utility model, described oil hydraulic motor clockwise and anticlockwise control mouthful A1, total oil return inlet T are respectively equipped with relief valve 3, and the flow of 3 pairs of A1 mouths of described relief valve and T mouth turnover oil is controlled, when flow is excessive, relief valve 3 is opened, and makes unnecessary oil mass flow back to fuel tank.
According to a kind of preferred version of the present utility model, described fast advance and retreat control mouthful A2, B2 pass a bridge through P1 mouth place with normal advance and retreat control mouthful A3, B3 and are provided with the through hole that communicates, and fast advance and retreat control mouthful A2, B2 adopt identical oil inlet and oil return road with normal advance and retreat control mouthful A3, B3.
Technique effect of the present utility model is: it is the chip combination brake switch and proporting that is combined by a plurality of selector valves and relief valve, can be combined as 10 according to operation mechanism's needs connects with interior multi-way valve group, it has the working pressure height, compact structure, the safety valve performance is good, the reliability height, advantages such as highly versatile, in addition, can be according to user's needs, overload valve or Fill valve are installed between arbitrary active chamber and oil back chamber, form in parallel, series connection or series parallel connection oil circuit, and multiple slide valve function arranged, the location, reset mode and control mode, also can utilize gap bridge valve body or outer oil-collecting hole to provide oil sources, satisfy the needs of different main frames widely to other mechanisms.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is a side view of the present utility model;
Fig. 3 is asphalt principle figure of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
As shown in Figure 1, 2, a kind of multiple directional control valve, comprise oil inlet and oil return valve body parts 1, commutation plate valve 2, wherein, oil inlet and oil return valve body parts 1 is made up of the big pump oil inlet P of series connection gear pump, the little pump oil inlet P 1 of series connection gear pump, total oil return inlet T, and fluid flows into selector valve a, b by big pump oil inlet P, simultaneously, fluid flows into selector valve c by little pump oil inlet P 1, and flows back to fuel tank by total oil return inlet T; Commutation plate valve 2 is by selector valve a, b, c forms, selector valve a comprises oil hydraulic motor clockwise and anticlockwise control mouthful A1, B1, selector valve b comprises fast advance and retreat control mouthful A2, B2, selector valve c comprises normal advance and retreat control mouthful A3, B3, wherein, described clockwise and anticlockwise control mouthful A1, B1 connects oil hydraulic motor, fluid is by clockwise and anticlockwise control mouthful A1, B1 flows into oil hydraulic motor, be the oil hydraulic motor fuel feeding, the clockwise and anticlockwise of control oil hydraulic motor, described fast advance and retreat control mouthful A2, B2 connects quick drilling rod, oil hydraulic motor is controlled the fast advance and retreat of quick drilling rod by the series connection gear, described normal advance and retreat control mouthful A3, B3 connects normal advance and retreat drilling rod, and oil hydraulic motor is also controlled the normal advance and retreat of normal drilling rod by the series connection gear.
As shown in Figure 3, a kind of working oil path of multiple directional control valve, fluid flows into selector valve a by big pump oil inlet P, b, flow into selector valve c by little pump oil inlet P 1, selector valve a is provided with oil hydraulic motor clockwise and anticlockwise control mouthful A1, B1, b is provided with fast advance and retreat control mouthful A2, B2, c is provided with normal advance and retreat control mouthful A3, B3, A1, B1 connects oil hydraulic motor, the control motor positive and inverse, fast advance and retreat control mouthful A2, B2 connects quick drilling rod, normal advance and retreat control mouthful A3, B3 connects normal drilling rod, the clockwise and anticlockwise of oil hydraulic motor is by the fast advance and retreat of series connection gear drilling rod, normal advance and retreat, mouthful A2 of fast advance and retreat control simultaneously, B2 and normal advance and retreat control mouthful A3, passing a bridge through P1 mouth place of B3 is provided with the through hole that communicates, fast advance and retreat adopts identical oil inlet and oil return road with normal advance and retreat, in addition at oil hydraulic motor clockwise and anticlockwise control mouthful A1, total oil return inlet T is respectively equipped with relief valve 3, the flow of 3 pairs of A1 mouths of relief valve and T mouth turnover oil is controlled, when flow is excessive, relief valve 3 is opened, and makes unnecessary oil mass flow back to fuel tank.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (3)
1. a multiple directional control valve comprises oil inlet and oil return valve body parts (1), commutation plate valve (2), it is characterized in that:
Described oil inlet and oil return valve body parts (1) is made up of the big pump oil inlet P of series connection gear pump, the little pump oil inlet P 1 of series connection gear pump, total oil return inlet T, fluid flows into selector valve a, b by big pump oil inlet P, simultaneously, fluid flows into selector valve c by little pump oil inlet P 1, and flows back to fuel tank by total oil return inlet T;
Described commutation plate valve (2) is by selector valve a, b, c forms, selector valve a comprises oil hydraulic motor clockwise and anticlockwise control mouthful A1, B1, selector valve b comprises fast advance and retreat control mouthful A2, B2, selector valve c comprises normal advance and retreat control mouthful A3, B3, wherein, described clockwise and anticlockwise control mouthful A1, B1 connects oil hydraulic motor, fluid is by clockwise and anticlockwise control mouthful A1, B1 flows into oil hydraulic motor, be the oil hydraulic motor fuel feeding, the clockwise and anticlockwise of control oil hydraulic motor, described fast advance and retreat control mouthful A2, B2 connects quick drilling rod, oil hydraulic motor is controlled the fast advance and retreat of quick drilling rod by the series connection gear, described normal advance and retreat control mouthful A3, B3 connects normal advance and retreat drilling rod, and oil hydraulic motor is also controlled the normal advance and retreat of normal drilling rod by the series connection gear.
2. a kind of multiple directional control valve according to claim 1, it is characterized in that: described oil hydraulic motor clockwise and anticlockwise control mouthful A1, total oil return inlet T are respectively equipped with relief valve (3), described relief valve (3) is controlled the flow of A1 mouth and T mouth turnover oil, when flow is excessive, relief valve (3) is opened, and makes unnecessary oil mass flow back to fuel tank.
3. a kind of multiple directional control valve according to claim 1, it is characterized in that: described fast advance and retreat control mouthful A2, B2 pass a bridge through P1 mouth place with normal advance and retreat control mouthful A3, B3 and are provided with the through hole that communicates, and fast advance and retreat control mouthful A2, B2 adopt identical oil inlet and oil return road with normal advance and retreat control mouthful A3, B3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201185384U CN202040138U (en) | 2011-04-20 | 2011-04-20 | Multichannel reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201185384U CN202040138U (en) | 2011-04-20 | 2011-04-20 | Multichannel reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040138U true CN202040138U (en) | 2011-11-16 |
Family
ID=44967584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201185384U Expired - Fee Related CN202040138U (en) | 2011-04-20 | 2011-04-20 | Multichannel reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040138U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161780A (en) * | 2013-03-20 | 2013-06-19 | 李瑞川 | Multi-way reversing valves based on single-ended oil source control body |
| CN106762921A (en) * | 2017-03-31 | 2017-05-31 | 泸州国邦机械有限公司 | Dual-pump flow-converging rig valve |
-
2011
- 2011-04-20 CN CN2011201185384U patent/CN202040138U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161780A (en) * | 2013-03-20 | 2013-06-19 | 李瑞川 | Multi-way reversing valves based on single-ended oil source control body |
| CN106762921A (en) * | 2017-03-31 | 2017-05-31 | 泸州国邦机械有限公司 | Dual-pump flow-converging rig valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20140420 |