CN202100551U - Multi-way reversing valve - Google Patents
Multi-way reversing valve Download PDFInfo
- Publication number
- CN202100551U CN202100551U CN2011201185596U CN201120118559U CN202100551U CN 202100551 U CN202100551 U CN 202100551U CN 2011201185596 U CN2011201185596 U CN 2011201185596U CN 201120118559 U CN201120118559 U CN 201120118559U CN 202100551 U CN202100551 U CN 202100551U
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- China
- Prior art keywords
- oil
- valve
- hydraulic motor
- retreat
- control mouthful
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- Expired - Fee Related
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Abstract
The utility model discloses a multi-way reversing valve, comprising an oil inlet/return valve body part and reversing piece valves, wherein oil liquid enters into the reversing piece valve through an oil inlet opening of the oil inlet/return valve body, the reversing piece valves comprise three reversing valves (a, b and c), the oil liquid flows into a hydraulic motor through a control opening of the reversing valve (a) to supply oil to the hydraulic motor and control the hydraulic motor to forwardly and oppositely rotate, control openings of the reversing valve (b) and the reversing valve (c) are respectively connected with a quick drill rod and a normal advancing/regressing drill rod, and the hydraulic motor controls the advancing/regressing of the drill rod by a plurality of gears connected in series. The multi-way reversing valve has the beneficial effects that a multi-way valve set which is more 10 ways can be assembled according to the requirement of a work mechanism, an overload valve or an oil compensating valve can be arranged between any one of work cavities and an oil returning cavity according to the requirement of a user to form an in-parallel oil way, an in-series oil way or an in-series/in-parallel oil way, and an oil source can be provided to other mechanisms by a gap bridge valve body or an external oil opening, so that the multi-way reversing valve widely meets the requirements of different host 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 the different working requirement, 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, low, the difficult installation of intensification degree, and asphalt channel is little, easy blocking, the pressure loss is big, and energy consumption is big, and system is prone to heating, and working life is low, influences user's ordinary production, and causes economic loss easily.
The model utility content
The purpose of the utility model is to overcome the deficiency of existing technology, a kind of working pressure height, compact structure is provided, 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 comprises oil inlet and oil return valve body parts, switching-over plate valve; Wherein, Said oil inlet and oil return valve body parts is made up of through the post-decompression oil inlet P of pressure limiting diverter valve C2 1, total oil return inlet T series connection gear pump oil inlet P, gear pump oil sources, and fluid is through oil inlet P inflow selector valve a, b, simultaneously; Fluid flows into selector valve c through the gear pump oil sources through the post-decompression oil inlet P 1 of pressure limiting diverter valve C2, and flows back to fuel tank through total oil return inlet T;
Said switching-over plate valve 2 is made up of selector valve a, b, c, and selector valve a comprises oil hydraulic motor clockwise and anticlockwise control mouthful A1, B1, and 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, said clockwise and anticlockwise control mouthful A1, B1 connect oil hydraulic motor, and fluid flows into oil hydraulic motor through clockwise and anticlockwise control mouthful A1, B1; Be the oil hydraulic motor fuel feeding; The clockwise and anticlockwise of control oil hydraulic motor, said fast advance and retreat control mouthful A2, B2 connect quick drilling rod, and oil hydraulic motor is controlled the fast advance and retreat of quick drilling rod through the series connection gear; Said normal advance and retreat control mouthful A3, B3 connect normal advance and retreat drilling rod, and oil hydraulic motor is also controlled the normal advance and retreat of normal drilling rod through the series connection gear.
A kind of preferred version according to the utility model; Said 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 said 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.
A kind of preferred version according to the utility model; Said 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.
According to a kind of preferred version of the utility model, said series connection gear pump oil inlet P is provided with pressure limiting diverter valve C1.
The technique effect of the 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 and connect with interior multi-way valve group, advantages such as it has working pressure height, compact structure, the safety valve performance is good, reliability is high, 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, are formed parallel connection, series connection or series parallel connection oil circuit, and multiple slide valve function, location, reset mode and control mode are arranged; Gap bridge valve body also capable of using or outer oil-collecting hole provide oil sources to other mechanisms, have satisfied the needs of different main frames widely.
Description of drawings
Fig. 1 is the plan view of the utility model;
Fig. 2 is the side view of the utility model;
Fig. 3 is the asphalt principle figure of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Like Fig. 1, shown in 2, a kind of multiple directional control valve comprises oil inlet and oil return valve body parts 1, switching-over plate valve 2; Wherein, Oil inlet and oil return valve body parts 1 is made up of through the post-decompression oil inlet P of pressure limiting diverter valve C2 1, total oil return inlet T series connection gear pump oil inlet P, gear pump oil sources, and fluid is through oil inlet P inflow selector valve a, b, simultaneously; Fluid flows into selector valve c through the gear pump oil sources through the post-decompression oil inlet P 1 of pressure limiting diverter valve C2, and flows back to fuel tank through total oil return inlet T; Switching-over plate valve 2 is made up of selector valve a, b, c, and selector valve a comprises oil hydraulic motor clockwise and anticlockwise control mouthful A1, B1, and 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, said clockwise and anticlockwise control mouthful A1, B1 connect oil hydraulic motor, and fluid flows into oil hydraulic motor through clockwise and anticlockwise control mouthful A1, B1; Be the oil hydraulic motor fuel feeding; The clockwise and anticlockwise of control oil hydraulic motor, said fast advance and retreat control mouthful A2, B2 connect quick drilling rod, and oil hydraulic motor is controlled the fast advance and retreat of quick drilling rod through the series connection gear; Said normal advance and retreat control mouthful A3, B3 connect normal advance and retreat drilling rod, and oil hydraulic motor is also controlled the normal advance and retreat of normal drilling rod through 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, b through oil inlet P; Flow into selector valve c through the gear pump oil sources through the post-decompression oil inlet P 1 of pressure limiting diverter valve C2, selector valve a is provided with oil hydraulic motor clockwise and anticlockwise control mouthful A1, B1, and b is provided with fast advance and retreat control mouthful A2, B2; C is provided with normal advance and retreat control mouthful A3, B3, and A1, B1 connect oil hydraulic motor, the control motor positive and inverse; Fast advance and retreat control mouthful A2, B2 connect quick drilling rod, and normal advance and retreat control mouthful A3, B3 connect normal drilling rod, and the clockwise and anticlockwise of oil hydraulic motor is through 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 are provided with the through hole that communicates with passing a bridge through P1 mouth place of normal advance and retreat control mouthful A3, B3, and fast advance and retreat adopts identical oil inlet and oil return road with normal advance and retreat, is respectively equipped with relief valve 3 in oil hydraulic motor clockwise and anticlockwise control mouthful A1, total oil return inlet T in addition; The flow of 3 pairs of A1 mouths of relief valve and T mouth turnover oil is controlled; When flow was excessive, relief valve 3 was opened, and makes unnecessary oil mass flow back to fuel tank; Simultaneously; Series connection gear pump oil inlet P, P1 are respectively equipped with pressure limiting diverter valve C1, C2, and when the oil pressure of oil inlet P, P1 was excessive, pressure limiting diverter valve C1, C2 made the fluid shunting.
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 (4)
1. a multiple directional control valve comprises oil inlet and oil return valve body parts (1), switching-over plate valve (2), it is characterized in that:
Said oil inlet and oil return valve body parts (1) is made up of through the post-decompression oil inlet P of pressure limiting diverter valve C2 1, total oil return inlet T series connection gear pump oil inlet P, gear pump oil sources; Fluid flows into selector valve a, b through oil inlet P; Simultaneously; Fluid flows into selector valve c through the gear pump oil sources through the post-decompression oil inlet P 1 of pressure limiting diverter valve C2, and flows back to fuel tank through total oil return inlet T;
Said switching-over plate valve (2) is made up of selector valve a, b, c, and selector valve a comprises oil hydraulic motor clockwise and anticlockwise control mouthful A1, B1, and 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, said clockwise and anticlockwise control mouthful A1, B1 connect oil hydraulic motor, and fluid flows into oil hydraulic motor through clockwise and anticlockwise control mouthful A1, B1; Be the oil hydraulic motor fuel feeding; The clockwise and anticlockwise of control oil hydraulic motor, said fast advance and retreat control mouthful A2, B2 connect quick drilling rod, and oil hydraulic motor is controlled the fast advance and retreat of quick drilling rod through the series connection gear; Said normal advance and retreat control mouthful A3, B3 connect normal advance and retreat drilling rod, and oil hydraulic motor is also controlled the normal advance and retreat of normal drilling rod through the series connection gear.
2. a kind of multiple directional control valve according to claim 1; It is characterized in that: said oil hydraulic motor clockwise and anticlockwise control mouthful A1, total oil return inlet T are respectively equipped with relief valve (3); Said relief valve (3) is monitored the flow of A1 mouth and T mouth turnover oil; When flow was excessive, relief valve (3) was 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: said 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.
4. a kind of multiple directional control valve according to claim 1 is characterized in that: said series connection gear pump oil inlet P is provided with pressure limiting diverter valve C1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201185596U CN202100551U (en) | 2011-04-20 | 2011-04-20 | Multi-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201185596U CN202100551U (en) | 2011-04-20 | 2011-04-20 | Multi-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100551U true CN202100551U (en) | 2012-01-04 |
Family
ID=45386566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201185596U Expired - Fee Related CN202100551U (en) | 2011-04-20 | 2011-04-20 | Multi-way reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100551U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536942A (en) * | 2012-02-13 | 2012-07-04 | 中联重科股份有限公司 | Throttle loop |
| 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 CN2011201185596U patent/CN202100551U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536942A (en) * | 2012-02-13 | 2012-07-04 | 中联重科股份有限公司 | Throttle loop |
| CN102536942B (en) * | 2012-02-13 | 2014-08-13 | 中联重科股份有限公司 | Throttle loop |
| 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: 20120104 Termination date: 20140420 |