CN203627355U - Double-speed-valve control system capable of achieving forced high speed or forced low speed - Google Patents
Double-speed-valve control system capable of achieving forced high speed or forced low speed Download PDFInfo
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- CN203627355U CN203627355U CN201320733289.9U CN201320733289U CN203627355U CN 203627355 U CN203627355 U CN 203627355U CN 201320733289 U CN201320733289 U CN 201320733289U CN 203627355 U CN203627355 U CN 203627355U
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- Prior art keywords
- speed
- valve
- double
- solenoid directional
- directional control
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- 230000001960 triggered effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 34
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Abstract
The utility model discloses a double-speed-valve control system capable of achieving a forced high speed or a forced low speed. The system comprises a shuttle valve, a double-speed motor, an automatic double-speed switching valve, a high-speed oil circuit and a low-speed oil circuit and further comprises a first electromagnetic reversing valve and a second electromagnetic reversing valve, wherein the high-speed oil circuit between the first electromagnetic reversing valve and the automatic double-speed switching valve is provided with a first hydraulic normal-open valve, the low-speed oil circuit between the first electromagnetic reversing valve and the automatic double-speed switching valve is provided with a second hydraulic normal-open valve, the on-off state of the first hydraulic normal-open valve and the on-off state of the second hydraulic normal-open valve are controlled through the second electromagnetic reversing valve, the first electromagnetic reversing valve and the second electromagnetic reversing valve are triggered, an oil circuit flowing to the automatic double-speed switching valve is cut off through the first hydraulic normal-open valve and the second hydraulic normal-open valve, the first electromagnetic reversing valve is communicated with the low-speed oil circuit and the high-speed oil circuit, the shuttle valve is connected with the double-speed motor through the first electromagnetic reversing valve, and accordingly the double-speed motor is only in a low-speed state or a high-speed state during operation.
Description
Technical field
The utility model relates to a kind of double speed valve control system of forcing at a high speed or forcing low speed.
Background technique
The control system of double speed valve generally comprises shuttle valve, double-speed motor, Fixed differential reducing valve, pressure measuring tie-in, automatic dual-speed switching valve and is communicated with high-speed circuit and the low speed oil circuit of double-speed motor and automatic dual-speed switching valve.When work, pressure oil flows into from R end and the L end of shuttle valve respectively, after the oil pressure of contrast R end and L end, the pressure oil of one end of high oil pressure flow to automatic dual-speed switching valve, the work of automatic dual-speed switching valve, the setting oil pressure contrast of this end oil pressure and automatic dual-speed switching valve, when this end oil pressure is higher than setting when oil pressure, pressure oil X mouth from double-speed motor after low speed oil circuit flows into, from the Y mouth of double-speed motor flows out high-speed circuit, flow to oil sump tank through automatic dual-speed switching valve, double-speed motor is in low-speed running state; When this end oil pressure is lower than setting when oil pressure, the work of automatic dual-speed switching valve, pressure oil Y mouth from double-speed motor after high-speed circuit flows into, and from the X mouth of double-speed motor flows out low speed oil circuit, flow to oil sump tank through automatic dual-speed switching valve, and double-speed motor is in the state of running up.The switching of this oil pressure speed can automatically regulate and complete in loop, but in speed handoff procedure at work, due to the impact of stormy waves, load meeting changes along with rocking of boats and ships, cause speed to be switched suddenly and motor output torque occurs cannot support the danger of weight, at this moment just need to force speed functions control, only provide the function of low-speed big to guarantee safety.And, because automatic dual-speed switching valve switches the working state of oil circuit by the restriction of working pressure in oil circuit, when some only need high-speed functions, due to being limited in scope of double speed valve setting value, in needs high speed operation and load when larger, system oil pressure higher, the work of automatic dual-speed switching valve, motor is switched in high speed and low speed, and motor can not move in fast state always.In order addressing this problem, to be badly in need of increasing in double speed valve control system and to force at a high speed and force speed functions.
Model utility content
The purpose of this utility model, is to provide a kind of double speed valve control system of forcing at a high speed or forcing low speed.
The solution that the utility model solves its technical problem is: the double speed valve control system of forcing at a high speed or force low speed, comprise shuttle valve, double-speed motor, high-speed circuit and the low speed oil circuit of automatic dual-speed switching valve and connection double-speed motor and automatic dual-speed switching valve, the input end of described automatic dual-speed switching valve is communicated with shuttle valve, also comprise the first solenoid directional control valve and the second solenoid directional control valve that are arranged in parallel with automatic dual-speed switching valve, on high-speed circuit between described the first solenoid directional control valve and automatic dual-speed switching valve, arrange and can cut off first of connected state between the Y mouth of double-speed motor and the automatic dual-speed switching valve normally open valve that surges, on low speed oil circuit between the first solenoid directional control valve and automatic dual-speed switching valve, arrange and can cut off second of connected state between the X mouth of double-speed motor and the automatic dual-speed switching valve normally open valve that surges, described first normally open valve and second that surges surges the open and-shut mode of normally open valve by the second solenoid directional control valve control.
As the further improvement of technique scheme, described the first solenoid directional control valve is between automatic dual-speed switching valve and double-speed motor, and described the second solenoid directional control valve is between the first solenoid directional control valve and automatic dual-speed switching valve.
As the further improvement of technique scheme, the A end of described the first solenoid directional control valve is communicated with high-speed circuit, the B end of the first solenoid directional control valve is communicated with low speed oil circuit, and the P end of the first solenoid directional control valve is communicated with shuttle valve, and the T end of the first solenoid directional control valve is communicated with double-speed motor.
As the further improvement of technique scheme, described the first solenoid directional control valve being provided with can make that the A end of the first solenoid directional control valve is communicated with T end, B end holds with P the first electromagnet being communicated with, and the first solenoid directional control valve being provided with can make the A of the first solenoid directional control valve hold to hold with P to be communicated with, B holds and holds with T the second electromagnet being communicated with.
The beneficial effects of the utility model are: the utility model is by first normally open valve and second normally open valve that surges that surges, in the time that double-speed motor needs stable operation at fast state or lower-speed state, touch the first solenoid directional control valve and the second solenoid directional control valve, first normally open valve and second normally open valve that surges that surges cuts off and flows to the oil circuit of automatic dual-speed switching valve, the first solenoid directional control valve is communicated with low speed oil circuit and high-speed circuit, like this, be communicated with shuttle valve and double-speed motor by the first solenoid directional control valve, make double-speed motor only in lower-speed state or fast state work.The utility model is simple in structure, and double-speed motor can be moved in lower-speed state or fast state, on the basis of automatic dual-speed control function, has expanded speed controlling function.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than whole embodiment, and those skilled in the art is not paying under the prerequisite of creative work, can also obtain other design proposals and accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Embodiment
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is clearly and completely described, to understand fully the purpose of this utility model, feature and effect.Obviously; described embodiment is a part of embodiment of the present utility model, rather than whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite of not paying creative work, all belong to the scope that the utility model is protected.In addition, all connection/annexations of mentioning in literary composition, not singly refer to that member directly joins, and refer to and can, according to concrete performance, connect auxiliary by adding or reducing, and form more excellent connecting structure.
With reference to Fig. 1, force the double speed valve control system of high speed or pressure low speed, comprise shuttle valve 2, double-speed motor 1, high-speed circuit 61 and the low speed oil circuit 62 of automatic dual-speed switching valve 6 and connection double-speed motor 1 and automatic dual-speed switching valve 6, the input end of described automatic dual-speed switching valve 6 is communicated with shuttle valve 2, also comprise the first solenoid directional control valve 3 and the second solenoid directional control valve 5 that are arranged in parallel with automatic dual-speed switching valve 6, on high-speed circuit between described the first solenoid directional control valve 3 and automatic dual-speed switching valve 6, arrange and can cut off first of connected state between the Y mouth of double-speed motor 1 and automatic dual-speed switching valve 6 normally open valve 41 that surges, on low speed oil circuit between the first solenoid directional control valve 3 and automatic dual-speed switching valve 6, arrange and can cut off second of connected state between the X mouth of double-speed motor 1 and automatic dual-speed switching valve 6 normally open valve 42 that surges, described first the surge open and-shut mode of normally open valve 42 of normally open valve 41 and second that surges is controlled by the second solenoid directional control valve 5.
Be further used as preferred embodiment, described the first solenoid directional control valve 3 is between automatic dual-speed switching valve 6 and double-speed motor 1, and described the second solenoid directional control valve 5 is between the first solenoid directional control valve 3 and automatic dual-speed switching valve 6.
Be further used as preferred embodiment, the A end of described the first solenoid directional control valve 3 is communicated with high-speed circuit 61, the B end of the first solenoid directional control valve 3 is communicated with low speed oil circuit 62, and the P end of the first solenoid directional control valve 3 is communicated with shuttle valve 2, and the T end of the first solenoid directional control valve 3 is communicated with double-speed motor 1.
Be further used as preferred embodiment, described the first solenoid directional control valve 3 is provided with and can makes that the A end of the first solenoid directional control valve 3 is communicated with T end, B end holds with P the first electromagnet being communicated with, and the first solenoid directional control valve 3 is provided with can be made the A of the first solenoid directional control valve 3 hold to hold with P to be communicated with, B holds and holds with T the second electromagnet being communicated with.
When the normal work of double-speed motor 1, the first solenoid directional control valve 3 and the second solenoid directional control valve 5 be in normally off, and first normally open valve 41 and second that surges surges normally open valve 42 in opening state, and double-speed motor 1 is in automatic speed change state.
Need double-speed motor 1 always in the time of fast state or lower-speed state, touch the first solenoid directional control valve 3 and the corresponding button of the second solenoid directional control valve 5, the first solenoid directional control valve 3 is in connected state, the second solenoid directional control valve 5 makes first normally open valve 41 and second that surges surge normally open valve 42 in closed state, cuts off the oil circuit that leads to automatic dual-speed switching valve 6.The first electromagnet obtains electric, double-speed motor is in the time of lower-speed state, high pressure oil flows into the P end of the first solenoid directional control valve 3 from shuttle valve 2, from the B end of the first solenoid directional control valve 3 flows into low speed oil circuit 62, enter the X mouth of double-speed motor 1, from the Y mouth of double-speed motor 1 flows out, flow to oil sump tank through the A of the first solenoid directional control valve 3 end and T end; The second electromagnet obtains electric, double-speed motor is in the time of fast state, high pressure oil flows into the P end of the first solenoid directional control valve 3 from shuttle valve 2, from the A end of the first solenoid directional control valve 3 flows into high-speed circuit 61, enter the Y mouth of double-speed motor 1, from the X mouth of double-speed motor 1 flows out, flow to oil sump tank through the B of the first solenoid directional control valve 3 end and T end.
More than that preferred embodiments of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to the utility model spirit, and the modification that these are equal to or replacement are all included in the application's claim limited range.
Claims (4)
1. force the double speed valve control system of high speed or pressure low speed, comprise shuttle valve, double-speed motor, high-speed circuit and the low speed oil circuit of automatic dual-speed switching valve and connection double-speed motor and automatic dual-speed switching valve, the input end of described automatic dual-speed switching valve is communicated with shuttle valve, it is characterized in that: also comprise the first solenoid directional control valve and the second solenoid directional control valve that are arranged in parallel with automatic dual-speed switching valve, on high-speed circuit between described the first solenoid directional control valve and automatic dual-speed switching valve, arrange and can cut off first of connected state between the Y mouth of double-speed motor and the automatic dual-speed switching valve normally open valve that surges, on low speed oil circuit between the first solenoid directional control valve and automatic dual-speed switching valve, arrange and can cut off second of connected state between the X mouth of double-speed motor and the automatic dual-speed switching valve normally open valve that surges, described first normally open valve and second that surges surges the open and-shut mode of normally open valve by the second solenoid directional control valve control.
2. the double speed valve control system of forcing at a high speed or forcing low speed according to claim 1, it is characterized in that: described the first solenoid directional control valve is between automatic dual-speed switching valve and double-speed motor, and described the second solenoid directional control valve is between the first solenoid directional control valve and automatic dual-speed switching valve.
3. the double speed valve control system of forcing at a high speed or forcing low speed according to claim 1, it is characterized in that: the A end of described the first solenoid directional control valve is communicated with high-speed circuit, the B end of the first solenoid directional control valve is communicated with low speed oil circuit, the P end of the first solenoid directional control valve is communicated with shuttle valve, and the T end of the first solenoid directional control valve is communicated with double-speed motor.
4. the double speed valve control system of forcing at a high speed or forcing low speed according to claim 3, it is characterized in that: described the first solenoid directional control valve being provided with can make that the A end of the first solenoid directional control valve is communicated with T end, B end holds with P the first electromagnet being communicated with, the first solenoid directional control valve being provided with can make the A of the first solenoid directional control valve hold to hold with P to be communicated with, B holds and holds with T the second electromagnet being communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733289.9U CN203627355U (en) | 2013-11-19 | 2013-11-19 | Double-speed-valve control system capable of achieving forced high speed or forced low speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733289.9U CN203627355U (en) | 2013-11-19 | 2013-11-19 | Double-speed-valve control system capable of achieving forced high speed or forced low speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627355U true CN203627355U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320733289.9U Expired - Lifetime CN203627355U (en) | 2013-11-19 | 2013-11-19 | Double-speed-valve control system capable of achieving forced high speed or forced low speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627355U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736489A (en) * | 2014-12-08 | 2016-07-06 | 佛山市恒力泰机械有限公司 | Movable-beam speed-regulation oil way structure of hydraulic pressing machine |
| CN106593984A (en) * | 2016-12-23 | 2017-04-26 | 宁波斯达弗液压传动有限公司 | Hydraulic integrated valve group with automatic double speed belt load balance |
-
2013
- 2013-11-19 CN CN201320733289.9U patent/CN203627355U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736489A (en) * | 2014-12-08 | 2016-07-06 | 佛山市恒力泰机械有限公司 | Movable-beam speed-regulation oil way structure of hydraulic pressing machine |
| CN105736489B (en) * | 2014-12-08 | 2018-01-05 | 佛山市恒力泰机械有限公司 | A kind of dynamic beam speed governing oil channel structures of hydraulic press |
| CN106593984A (en) * | 2016-12-23 | 2017-04-26 | 宁波斯达弗液压传动有限公司 | Hydraulic integrated valve group with automatic double speed belt load balance |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |