CN201344163Y - Improved hydraulic multichannel conversion valve - Google Patents
Improved hydraulic multichannel conversion valve Download PDFInfo
- Publication number
- CN201344163Y CN201344163Y CNU2009201139143U CN200920113914U CN201344163Y CN 201344163 Y CN201344163 Y CN 201344163Y CN U2009201139143 U CNU2009201139143 U CN U2009201139143U CN 200920113914 U CN200920113914 U CN 200920113914U CN 201344163 Y CN201344163 Y CN 201344163Y
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- valve
- valve rod
- end cap
- spring seat
- spring
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Abstract
The utility model provides an improved hydraulic multichannel conversion valve and belongs to the technical field of machinery. The improved hydraulic multichannel conversion valve solves the problems of multiple fault points, poor operational stability, and complicated structure of the prior hydraulic multichannel conversion valve. The hydraulic multichannel conversion valve comprises a valve body, wherein, the valve body is provided with a plurality of oil channels arranged therein, a valve rod capable of slipping from the left to the right is connected in the interior of the valve body; the on/off state of the different oil channels can be realized after the slippage of the valve rod; an end cover is fixedly connected with the valve body; a resetting mechanism capable of resetting after the slippage of valve rod is arranged between the valve rod and the end cover; and an oil port is formed at the end cover. The improved hydraulic conversion valve has the advantages of high stability, long service life, simple and compact structure, and simple and convenient operation.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the hydraulic multichannel conversion valve of a kind of selector valve, particularly a kind of improvement.
Background technique
With the highly pressurised liquid is the manipulation and the control of the mechanical device of power, normally realizes by the hydraulic multichannel conversion valve that is installed on the mechanical device.At present, the equipment hydraulic system of homemade wheel loader also adapted has the hydraulic control multiple directional control valve, for example blocks special multi-way valve D32.
Above-mentioned hydraulic multichannel conversion valve will be realized realizing when multidigit is floated that because the control port of Pilot operated check valve is smaller, impurity is easy to be blocked in control port place, influences the normal use of hydraulic multichannel conversion valve by Pilot operated check valve.Obviously, above-mentioned valve contamination resistance in the course of the work is more weak, and the unsteady malfunctioning phenomenon of appearance, and its system easily connects also more complicated, has increased the cost of this valve.
Generally speaking, existing hydraulic multichannel conversion valve fault point is many, stability in use is relatively poor, complex structure.
Summary of the invention
The purpose of this utility model is at existing in prior technology the problems referred to above, and a kind of hydraulic multichannel conversion valve of simple in structure, improvement that stability in use is high is provided.
The purpose of this utility model can realize by following technical proposal: a kind of hydraulic multichannel conversion valve of improvement, comprise a valve body, has some roads fluid passage in the described valve body, also be connected with a valve rod that can horizontally slip in the valve body, and after valve stem slides, can make different fluid passages be in conducting or closing state, it is characterized in that, also be fixed with end cap on the described valve body, be provided with the resetting-mechanism that after valve stem slides, can reset between described valve rod and the end cap, have hydraulic fluid port on the described end cap.
After hydraulic oil was entered by hydraulic fluid port, the oil pressure between valve rod and the end cap increased.Oil pressure is big to a certain degree promoting valve rod, and valve rod is moved.Valve rod moves the back just can make the interior different fluid passage of valve body be in conducting or closing state.
In case stop behind hydraulic fluid port input hydraulic pressure oil, under the effect of resetting-mechanism, making valve rod return back to initial position.
In the hydraulic multichannel conversion valve of above-mentioned improvement, the quantity of described end cap is two: end cap one and end cap two, end cap one is corresponding with the position of valve rod one end, end cap two is corresponding with the position of the valve rod the other end, be provided with the resetting-mechanism one that valve rod is resetted between end cap one and valve rod one end when valve rod, be provided with the resetting-mechanism two that valve rod is resetted between the end cap two and the valve rod the other end when valve rod, have filler opening on the described end cap one, have oil outlet on the described end cap two.
When hydraulic oil is entered by the filler opening at end cap one place, move to valve gap two places at the effect lower valve rod of oil pressure.After moving, valve rod make different fluid passages be in conducting or closing state.In case stop to filler opening input hydraulic pressure when oil, return back to original position at the effect lower valve rod of resetting-mechanism one.
When hydraulic oil is entered by the oil outlet at end cap two places, move to end cap two places at the effect lower valve rod of oil pressure.After moving, valve rod make different fluid passages be in conducting or closing state.In case stop to oil outlet input hydraulic pressure when oil, return back to original position at the effect lower valve rod of resetting-mechanism two.
In the hydraulic multichannel conversion valve of above-mentioned improvement, described resetting-mechanism one is a spring, and the two ends of spring act on respectively on valve rod and the end cap one.Remain certain distance between the elastic force effect lower valve rod of spring and end cap one, valve rod can overcome the elastic force of this spring and move to end cap one place when the oil-feed of oil outlet place.
In the hydraulic multichannel conversion valve of above-mentioned improvement, described resetting-mechanism one also comprises a spring seat one, has valve rod base recessed and that be complementary with the valve rod end shape on the spring seat one, the valve rod base of spring seat one is enclosed within the valve rod end, and the two ends of above-mentioned spring act on respectively on spring seat one and the end cap one.
Have the convex shoulder that contacts with spring end on the spring seat one, after spring seat one was enclosed within on the valve rod, an end of spring was enclosed within on the spring seat one and the end of spring is resisted against on the convex shoulder firmly.Make that like this valve rod end construction is simple.Particularly, the elastic force pusher flexible spring seat one that oil pressure overcomes spring moves, and drives valve rod in spring seat one moving process and together moves.
In the hydraulic multichannel conversion valve of above-mentioned improvement, described resetting-mechanism two is a spring, and the two ends of spring act on respectively on valve rod and the end cap two.
Remain certain distance between the elastic force effect lower valve rod of spring and end cap one, valve rod can overcome the elastic force of this spring and move to end cap one place when the oil-feed of oil outlet place.
In the hydraulic multichannel conversion valve of above-mentioned improvement, described resetting-mechanism two also comprises a spring seat two, has valve seat recessed and that be complementary with the valve rod end shape on the spring seat two, the valve seat of spring seat two is enclosed within the valve rod end, and the two ends of above-mentioned spring act on respectively on spring seat two and the end cap two.
Have the convex shoulder that contacts with spring end on the spring seat two, after spring seat two was enclosed within on the valve rod, an end of spring was enclosed within on the spring seat two and the end of spring is resisted against on the convex shoulder firmly.Make the simple in structure of valve rod the other end like this.Particularly, the elastic force pusher flexible spring seat two that oil pressure overcomes spring moves, and drives valve rod in spring seat two moving process and together moves.
In the hydraulic multichannel conversion valve of above-mentioned improvement, described spring seat two is made up of one-level spring seat and two-level spring seat, above-mentioned valve seat is positioned on the one-level spring seat, the one-level spring socket sleeve is provided with spring between one-level spring seat and end cap one on valve rod, the two-level spring seat is connected on the end cap two, on the two-level spring seat, be provided with little spring, one end of little spring is resisted against on the two-level spring seat, and after valve rod drive one-level spring seat moved, the other end of little spring can contact with the one-level spring seat.
After the oil pressure of hydraulic oil overcame the elastic force of spring, valve rod moved to end cap two places after driving the elastic force that the one-level spring seat overcomes spring, until an end in contact of one-level spring seat and little spring.After oil pressure continued to increase, valve gap continued to move to end cap two places, makes the one-level spring seat also overcome the elastic force of little spring when overcoming the elastic force of spring, makes one-level spring seat and two-level spring seated connection touch.Obviously, this moment, valve rod continued to have moved a segment distance to end cap two places, that is to say to make valve rod in end cap two place's moving process, have two stop places, thereby make valve rod can both make different fluid passages be in conducting or closing state twice stop place.
In the hydraulic multichannel conversion valve of above-mentioned improvement, be connected with block on the described one-level spring seat, the two ends of above-mentioned little spring act on respectively on one-level spring seat and the block, and after valve rod drive one-level spring seat moved, block can contact with the one-level spring seat.
After the two ends of little spring act on block and the two-level spring seat respectively, just can little spring is spacing firmly, prevent that little spring from coming off from the two-level spring seat.
In the hydraulic multichannel conversion valve of above-mentioned improvement, be provided with Sealing between described end cap one and the valve body.
Can make between end cap one and the valve body by Sealing and to have good sealing property.
In the hydraulic multichannel conversion valve of above-mentioned improvement, be provided with Sealing between described end cap two and the valve body.
Can make between end cap two and the valve body by Sealing and to have good sealing property.
Compared with prior art, the hydraulic multichannel conversion valve of this improvement effectively overcome card valve phenomenon, so its stability in use is than higher owing to be with valve spring retainer on the valve rod.And hydraulic oil is directly got final product by the input of filler opening or oil outlet, and only needs smaller oil pressure can drive valve rod to move, and therefore, it is easy to operation.In addition,, so also effectively reduced the wearing and tearing between corresponding part, made that the hydraulic multichannel conversion valve of this improvement is long working life, simple and compact for structure because spring seat abuts on the valve rod all the time.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the hydraulic multichannel conversion valve of this improvement.
Fig. 2 is along the A-A sectional structure schematic representation among Fig. 1.
Among the figure, 1, valve body; 2, fluid passage; 3, valve rod; 4, end cap one; 4a, filler opening; 5, end cap two; 5a, oil outlet; 6, Sealing; 7, spring seat one; 8, spring; 9, one-level spring seat; 10, two-level spring seat; 11, block; 12, little spring.
Embodiment
As depicted in figs. 1 and 2, the hydraulic multichannel conversion valve of this improvement comprises a valve body 1, has some roads fluid passage 2 in valve body 1.In valve body 1, also be connected with a valve rod that can horizontally slip 3, after valve rod 3 horizontally slips, can make different fluid passages 2 be in conducting or closing state.
On valve body 1, be fixed with two end caps: end cap 1 and end cap 25.End cap 1 is corresponding with the position of valve rod 3 one ends, and end cap 25 is corresponding with the position of valve rod 3 the other ends, and is being provided with Sealing 6 between end cap 1 and the valve body 1 and between end cap 25 and the valve body 1, and what Sealing 6 adopted is the seal ring that rubber material is made.Have the filler opening 4a that runs through on the end cap 1, have the oil outlet 5a that runs through on the end cap 25.
Between end cap 1 and valve rod 3 one ends, be provided with resetting-mechanism one, between the end cap 25 and valve rod 3 the other ends, be provided with resetting-mechanism two.
Resetting-mechanism one is made up of spring seat 1 and spring 8, has recessed valve rod base on the spring seat 1, and the shape at valve rod base place and valve rod 3 end shapes are complementary.The valve rod base place of spring seat 1 just is enclosed within valve rod 3 ends.Also be provided with spring 8 between end cap 1 and the spring seat 1, spring 8 is to be enclosed within on the spring seat 1 and two ends spring 8 act on respectively on spring seat 1 and the end cap 1.
Resetting-mechanism two is made up of spring seat two and spring 8 etc., and wherein spring seat two is made up of one-level spring seat 9 and two-level spring seat 10, has a valve seat that is complementary with valve rod 3 end shapes on one-level spring seat 9.The valve seat place of one-level spring seat 9 is enclosed within valve rod 3 ends, is provided with spring 8 between one-level spring seat 9 and end cap 25, and spring 8 is enclosed within on the one-level spring seat 9 and the two ends of spring 8 act on respectively on one-level spring seat 9 and the end cap 25.
One end of two-level spring seat 10 is connected on the end cap 25, and the other end of two-level spring seat 10 is with block 11, is with little spring 12 on two-level spring seat 10, and the size of little spring 12 is less than spring 8 sizes.The two ends of little spring 12 act on respectively on two-level spring seat 10 and the block 11.After valve rod 3 drive one-level spring seats 9 moved, block 11 can contact with one-level spring seat 9.
In the hydraulic multichannel conversion valve working procedure of this improvement, hydraulic oil is entered by the filler opening 4a at end cap one 4 places, and oil pressure is greatly after to a certain degree, and valve rod 3 overcomes the elastic force of spring 8 and drives one-level spring seat 7 and moves to end cap 25 places.After valve rod 3 moved to a certain degree, one-level spring seat 9 was resisted against on the block 11.At this moment, the valve rod 3 after moving makes that different fluid passages is in conducting or closing state in the valve body 1.When hydraulic oil continued import by filler opening 4a, oil pressure increased, and makes valve rod 3 overcome the elastic force of little spring 12, and valve rod 3 drives one-level spring seats 9 and block 11 1, and end cap 25 is mobile once more in the same way.At this moment, the valve rod 3 after moving changes the on state of fluid passages different in the valve body 1 once more.In case when stopping by filler opening 4a input hydraulic pressure oil, oil pressure weakens, spring 8 and little spring 12 overcome oil pressure makes valve rod 3 return back to initial position.
On the contrary, when hydraulic oil was entered by oil outlet 5a, oil pressure acted on the valve rod 3, and the elastic force that makes valve rod 3 overcome spring 8 moves to end cap one 4 places.Valve rod 3 after moving makes that the on state of different fluid passages changes once more in the valve body 1.In case stop by oil outlet 5a input hydraulic pressure when oil, reset at the elastic force effect lower valve rod 3 of spring 8.
Claims (10)
1, a kind of hydraulic multichannel conversion valve of improvement, comprise a valve body (1), have some road fluid passages (2) in the described valve body (1), also be connected with a valve rod that can horizontally slip (3) in the valve body (1), and after sliding, valve rod (3) can make different fluid passages (2) be in conducting or closing state, it is characterized in that, described valve body also is fixed with end cap on (1), be provided with the resetting-mechanism that after valve rod (3) slides, can reset between described valve rod (3) and the end cap, have hydraulic fluid port on the described end cap.
2, the hydraulic multichannel conversion valve of improvement according to claim 1, it is characterized in that, the quantity of described end cap is two: end cap one (4) and end cap two (5), end cap one (4) is corresponding with the position of valve rod (3) one ends, end cap two (5) is corresponding with the position of valve rod (3) the other end, be provided with the resetting-mechanism one that after end cap one (4) moves, valve rod (3) is resetted between end cap one (4) and valve rod (3) one ends when valve rod (3), be provided with the resetting-mechanism two that after end cap two (5) moves, valve rod (3) is resetted between the end cap two (5) and valve rod (3) the other end when valve rod (3), have filler opening (4a) on the described end cap one (4), have oil outlet (5a) on the described end cap two (5).
3, the hydraulic multichannel conversion valve of improvement according to claim 2 is characterized in that, described resetting-mechanism one is a spring (8), and the two ends of spring (8) act on respectively on valve rod (3) and the end cap one (4).
4, the hydraulic multichannel conversion valve of improvement according to claim 3, it is characterized in that, described resetting-mechanism one also comprises a spring seat one (7), has valve rod base recessed and that be complementary with valve rod (3) end shape on the spring seat one (7), the valve rod base of spring seat one (7) is enclosed within valve rod (3) end, and the two ends of above-mentioned spring (8) act on respectively on spring seat one (7) and the end cap one (4).
According to the hydraulic multichannel conversion valve of claim 2 or 3 or 4 described improvement, it is characterized in that 5, described resetting-mechanism two is spring (8), the two ends of spring (8) act on respectively on valve rod (3) and the end cap two (5).
6, the hydraulic multichannel conversion valve of improvement according to claim 5, it is characterized in that, described resetting-mechanism two also comprises a spring seat two, has valve seat recessed and that be complementary with valve rod (3) end shape on the spring seat two, the valve seat of spring seat two is enclosed within valve rod (3) end, and the two ends of above-mentioned spring (8) act on respectively on spring seat two and the end cap two (5).
7, the hydraulic multichannel conversion valve of improvement according to claim 6, it is characterized in that, described spring seat two is made up of one-level spring seat (9) and two-level spring seat (10), above-mentioned valve seat is positioned on the one-level spring seat (9), one-level spring seat (9) is enclosed within on the valve rod (3), between one-level spring seat (9) and end cap one (4), be provided with spring (8), two-level spring seat (10) is connected on the end cap two (5), on two-level spring seat (10), be provided with little spring (11), one end of little spring (11) is resisted against on the two-level spring seat (10), and after valve rod (3) drive one-level spring seat (9) moved, the other end of little spring (11) can contact with one-level spring seat (9).
8, the hydraulic multichannel conversion valve of improvement according to claim 7, it is characterized in that, be connected with block (11) on the described one-level spring seat (9), the two ends of above-mentioned little spring (11) act on respectively on one-level spring seat (9) and the block (11), and after valve rod (3) drive one-level spring seat (9) moved, block (11) can contact with one-level spring seat (9).
9, according to the hydraulic multichannel conversion valve of claim 2 or 3 or 4 described improvement, it is characterized in that, be provided with Sealing (6) between described end cap one (4) and the valve body (1).
10, according to the hydraulic multichannel conversion valve of claim 2 or 3 or 4 described improvement, it is characterized in that, be provided with Sealing (6) between described end cap two (5) and the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201139143U CN201344163Y (en) | 2009-02-13 | 2009-02-13 | Improved hydraulic multichannel conversion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201139143U CN201344163Y (en) | 2009-02-13 | 2009-02-13 | Improved hydraulic multichannel conversion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344163Y true CN201344163Y (en) | 2009-11-11 |
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ID=41275745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201139143U Expired - Fee Related CN201344163Y (en) | 2009-02-13 | 2009-02-13 | Improved hydraulic multichannel conversion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344163Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936316A (en) * | 2010-09-30 | 2011-01-05 | 临海市海克力机械有限公司 | Positive flow control engineering machinery multi-path reversing valve |
| CN108799237A (en) * | 2018-08-29 | 2018-11-13 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve |
-
2009
- 2009-02-13 CN CNU2009201139143U patent/CN201344163Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936316A (en) * | 2010-09-30 | 2011-01-05 | 临海市海克力机械有限公司 | Positive flow control engineering machinery multi-path reversing valve |
| CN101936316B (en) * | 2010-09-30 | 2013-01-23 | 浙江海克力液压有限公司 | Positive flow control engineering machinery multi-path reversing valve |
| CN108799237A (en) * | 2018-08-29 | 2018-11-13 | 黎明液压有限公司 | A kind of electro-hydraulic directional control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG HERCULES HYDRAULIC CO., LTD. Free format text: FORMER NAME: LINHAI HERCULES PUMP CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 317000 Zhejiang Taizhou coastal economic development zone (Luohe River) Patentee after: Zhejiang Hercules Hydraulic Co., Ltd. Address before: 317000 Zhejiang 317000 coastal economic development zone (Luohe) coastal Hercules Machinery Co. Ltd. Patentee before: Linhai City Haikeli Machinery Co., Ltd. |
|
| 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: 20091111 Termination date: 20170213 |