CN205173105U - Governing valve - Google Patents
Governing valve Download PDFInfo
- Publication number
- CN205173105U CN205173105U CN201521012736.7U CN201521012736U CN205173105U CN 205173105 U CN205173105 U CN 205173105U CN 201521012736 U CN201521012736 U CN 201521012736U CN 205173105 U CN205173105 U CN 205173105U
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- chamber
- load
- oil
- throttling
- valve
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Abstract
The utility model belongs to the hydrovalve field, concretely relates to governing valve, including the valve body, be provided with oil feed chamber, throttle chamber in the valve body, go out the oil pocket, the oil feed chamber and go out the oil pocket respectively with throttle chamber intercommunication, the throttle case is installed to the throttle intracavity, the valve body in still be provided with the off -load chamber, the off -load case is installed to the off -load intracavity, off -load case lower extreme is provided with the spring, the off -load case forms swing joint with the help of spring and off -load chamber, off -load chamber upper end is with the help of off -load passageway and throttle chamber intercommunication, off -load chamber lateral wall is provided with return path, has set up back tracking oil return chamber, back tracking oil return intracavity is provided with one -way valve core, one -way valve core forms swing joint with the help of spring and back tracking oil return chamber, oil feed chamber and go out the oil pocket with the help of back tracking oil return chamber intercommunication. Execute component return stroke fluid roof pressure one -way valve core gets into back tracking oil return chamber from going out the oil pocket, with the help of oil feed chamber outflow valve body, avoids setting for choke valve and unloading valve again, has realized the steady safety work of execute component, the safe convenient effect of regulation and control.
Description
Technical field
The utility model belongs to hydrovalve field, is specifically related to a kind of series flow control valve.
Background technique
General series flow control valve is made up of Fixed differential reducing valve and throttle valve two-part, in work, two-part are with the use of the smooth running of guarantee executive component, when induced pressure is excessive and executive component return, when exceeding Fixed differential reducing valve setting value, reduction valve setting value guarantee flow need be readjusted and do not change because of load variations.
Model utility content
The utility model is in order to solve above-mentioned problems of the prior art, the utility model provides a kind of series flow control valve, there is manual speed regulation capacity easily, the convenient operating rate regulating executive component, the stationarity that regulates and stability can be ensured, in the reciprocating hydraulic equipments such as oil cylinder, play the effect of level pressure, stable system load and convenient speed governing.
The concrete technological scheme that the utility model adopts is:
A kind of series flow control valve, comprise valve body, oil suction chamber is provided with in valve body, throttling chamber, go out oil pocket, oil suction chamber and go out oil pocket and be communicated with throttling chamber respectively, throttling is provided with throttling valve core in chamber, also unloading cavity is provided with in described valve body, off-load spool is installed in unloading cavity, off-load spool lower end is provided with spring, off-load spool to be formed with unloading cavity by spring and is flexibly connected, unloading cavity upper end is communicated with throttling chamber by unloading channel, unloading cavity sidewall is provided with drainback passage, have additional return oil back chamber, nonreturn valve core is provided with in return oil back chamber, nonreturn valve core to be formed with return oil back chamber by spring and is flexibly connected, oil suction chamber and go out oil pocket and be communicated with by return oil back chamber.
Described throttling valve core is arranged in throttling chamber by throttling valve pocket, and throttling valve core is connected by thread seal with throttling valve pocket.
Described throttling valve core end is equiped with adjusting handle.
Described nonreturn valve core is conical needle valve structure, nonreturn valve core be positioned at return oil back chamber with go out oil pocket be communicated with end.
The beneficial effects of the utility model are:
The utility model, set up one-way valve at valve inner, ensured executive component smooth running in to-and-fro motion, the utility model controls the to-and-fro motion of oil cylinder, when needs regulate executive component motion speed, only need regulate throttle valve, unnecessary fluid is discharged by unloading valve, executive component backhaul fluid top pressure nonreturn valve core, fluid enters return oil back chamber from going out oil pocket, finally flow out valve body by oil suction chamber, achieve the steady trouble free service of executive component, regulation and control safe and convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In accompanying drawing, 1, valve body, 2, oil suction chamber, 3, throttling chamber, 4, go out oil pocket, 5, throttling valve core, 6, unloading cavity, 7, off-load spool, 8, unloading channel, 9, drainback passage, 10, return oil back chamber, 11, nonreturn valve core, 12, throttling valve pocket, 13, adjusting handle.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail:
Specific embodiment as shown in Figure 1, the utility model is a kind of series flow control valve, comprise valve body 1, oil suction chamber 2 is provided with in valve body 1, throttling chamber 3, go out oil pocket 4, oil suction chamber 2 and go out oil pocket 4 and be communicated with throttling chamber 3 respectively, throttling valve core 5 is installed in throttling chamber 3, unloading cavity 6 is also provided with in described valve body 1, off-load spool 7 is installed in unloading cavity 6, off-load spool 7 lower end is provided with spring, off-load spool 7 to be formed with unloading cavity 6 by spring and is flexibly connected, unloading cavity 6 upper end is communicated with throttling chamber 3 by unloading channel 8, unloading cavity 6 sidewall is provided with drainback passage 9, have additional return oil back chamber 10, nonreturn valve core 11 is provided with in return oil back chamber 10, nonreturn valve core 11 to be formed with return oil back chamber 10 by spring and is flexibly connected, oil suction chamber 2 and go out oil pocket 4 and be communicated with by return oil back chamber 10.
Described throttling valve core 5 is arranged in throttling chamber by throttling valve pocket 12, and throttling valve core 5 is connected by thread seal with throttling valve pocket 12.
Described throttling valve core 5 end is equiped with adjusting handle 13.
Described nonreturn valve core 11 is conical needle valve structure, nonreturn valve core 11 be positioned at return oil back chamber 10 with go out oil pocket 4 be communicated with end.
The utility model, one-way valve has been set up at valve inner, ensure executive component smooth running in to-and-fro motion, the utility model controls the to-and-fro motion of oil cylinder, when needs regulate executive component motion speed, only need be regulated the throttling valve core 5 of throttle valve by adjusting handle 13, unnecessary fluid top pressure off-load spool 7, is discharged by off-load valve pocket 6;
During executive component process, fluid flows into from oil suction chamber 2, enters fuel-displaced chamber 4 behind throttling chamber 3, thus drives and the executive component going out oil pocket 4 and be connected;
Fluid backflow during executive component backhaul, fluid top pressure nonreturn valve core 11, nonreturn valve core 11 is opened, fluid enters return oil back chamber 10 from going out oil pocket 4, final importing oil suction chamber 2 flows back to fuel tank, controls the troublesome operation of executive component, avoid resetting throttle valve and unloading valve compared to prior art, achieve the steady trouble free service of executive component, the effect of regulation and control safe and convenient.
Claims (4)
1. a series flow control valve, comprise valve body (1), oil suction chamber (2) is provided with in valve body (1), throttling chamber (3), go out oil pocket (4), oil suction chamber (2) and go out oil pocket (4) and be communicated with throttling chamber (3) respectively, throttling valve core (5) is installed in throttling chamber (3), unloading cavity (6) is also provided with in described valve body (1), off-load spool (7) is installed in unloading cavity (6), off-load spool (7) lower end is provided with spring, off-load spool (7) to be formed with unloading cavity (6) by spring and is flexibly connected, unloading cavity (6) upper end is communicated with throttling chamber (3) by unloading channel (8), unloading cavity (6) sidewall is provided with drainback passage (9), it is characterized in that: have additional return oil back chamber (10), nonreturn valve core (11) is provided with in return oil back chamber (10), nonreturn valve core (11) to be formed with return oil back chamber (10) by spring and is flexibly connected, oil suction chamber (2) and go out oil pocket (4) and be communicated with by return oil back chamber (10).
2. a kind of series flow control valve according to claim 1, it is characterized in that: described throttling valve core (5) is arranged in throttling chamber (3) by throttling valve pocket (12), and throttling valve core (5) is connected by thread seal with throttling valve pocket (12).
3. a kind of series flow control valve according to claim 1, is characterized in that: described throttling valve core (5) end is equiped with adjusting handle (13).
4. a kind of series flow control valve according to claim 1, it is characterized in that: described nonreturn valve core (11) is conical needle valve structure, nonreturn valve core (11) be positioned at return oil back chamber (10) with go out oil pocket (4) be communicated with end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521012736.7U CN205173105U (en) | 2015-12-08 | 2015-12-08 | Governing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521012736.7U CN205173105U (en) | 2015-12-08 | 2015-12-08 | Governing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173105U true CN205173105U (en) | 2016-04-20 |
Family
ID=55737107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521012736.7U Active CN205173105U (en) | 2015-12-08 | 2015-12-08 | Governing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109312764A (en) * | 2016-06-23 | 2019-02-05 | Smc株式会社 | Speed control |
| CN110630578A (en) * | 2019-08-26 | 2019-12-31 | 中联重科股份有限公司 | Control valve and hydraulic control circuit |
-
2015
- 2015-12-08 CN CN201521012736.7U patent/CN205173105U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109312764A (en) * | 2016-06-23 | 2019-02-05 | Smc株式会社 | Speed control |
| CN109312764B (en) * | 2016-06-23 | 2020-09-25 | Smc株式会社 | Speed controller |
| TWI706090B (en) * | 2016-06-23 | 2020-10-01 | 日商Ｓｍｃ股份有限公司 | Speed controller |
| CN110630578A (en) * | 2019-08-26 | 2019-12-31 | 中联重科股份有限公司 | Control valve and hydraulic control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |