CN106402070B - Spool position reset device - Google Patents
Spool position reset device Download PDFInfo
- Publication number
- CN106402070B CN106402070B CN201610817434.XA CN201610817434A CN106402070B CN 106402070 B CN106402070 B CN 106402070B CN 201610817434 A CN201610817434 A CN 201610817434A CN 106402070 B CN106402070 B CN 106402070B
- Authority
- CN
- China
- Prior art keywords
- spool
- valve
- piston
- hydraulic fluid
- fluid port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Check Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of spool position reset devices, including valve body and it is set to the intracorporal spool of valve, spool end is equipped with valve pocket, cone valve is connected on spool, piston is equipped on the inside of valve pocket, piston is set to cone valve one end, and the positioning ball for positioning and resetting spool is equipped between valve pocket and piston, positioning ball, which is pressed on valve pocket, positions spool, and positioning ball, which is pressed on piston, makes spool automatically reset.By the above-mentioned means, spool position reset device of the present invention, after spool commutation, spool can rest on operating position, and when system pressure is excessively high, spool can automatically reset, to protect executing agency.
Description
Technical field
The present invention relates to Hydraulic Elements fields, more particularly to a kind of spool position reset device.
Background technique
Reversal valve is a kind of Hydraulic Elements widely used in hydraulic system, is mainly used for the switching of medium flow direction.It changes
It generally all include following components: reversing mechanism, sealing element, valve body, spool, resetting-mechanism or positioning mechanism to valve.It is multiple
Position mechanism is used for after reversal valve executes commutation action, and spool is made to return to initial bit.Positioning mechanism is used to change in reversal valve execution
To after movement, reversal valve is made to be fixed on the working condition or operation range of certain determination.In prior art, reversal valve is provided only with
Spring return mechanism is provided only with positioning mechanism.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of spool position reset devices, after spool commutation, spool energy
Operating position is enough rested on, when system pressure is excessively high, spool can automatically reset, to protect executing agency.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of spool position reset dress is provided
It sets, including valve body and is set to the intracorporal spool of valve, the spool end is equipped with valve pocket, is connected with cone valve on the spool, institute
It states and is equipped with piston on the inside of valve pocket, the piston is set to cone valve one end, is equipped between the valve pocket and piston for positioning and resetting
The positioning ball of spool, the positioning ball, which is pressed on valve pocket, positions spool, and positioning ball, which is pressed on piston, keeps spool automatically multiple
Position.
In a preferred embodiment of the present invention, the hydraulic oil that the valve body enters opens cone valve and piston is pushed to move
Dynamic, positioning ball is pressed on piston by spool effect makes valve core reset.
In a preferred embodiment of the present invention, the first spring is arranged on the piston, the piston is by the first spring
Pressure by position ball be pressed on valve pocket, be automatically positioned spool.
In a preferred embodiment of the present invention, the cone valve is equipped with second spring, the hydraulic oil that the valve body enters
Pressure be greater than second spring pressure when, cone valve open.
In a preferred embodiment of the present invention, cavity A, cavity B, hydraulic fluid port P and hydraulic fluid port T are equipped in the valve body, it is described
Spool has left working position, middle working position, right working position and floating bit, switch when the spool is located at different operating position cavity A,
Connected relation between cavity B, hydraulic fluid port P and hydraulic fluid port T.
In a preferred embodiment of the present invention, the valve pocket is equipped with the first valve pocket groove, the second valve pocket groove and the
Three valve pocket grooves have piston channel on the piston, and the positioning ball, which is pressed in piston channel, positions spool, described fixed
Position ball, which is pressed on the first valve pocket groove, the second valve pocket groove or third valve pocket groove, keeps the spool in different operating position fixed
Position.
In a preferred embodiment of the present invention, the spool is located at left working position hydraulic fluid port P and is connected to cavity A, hydraulic fluid port T and
Cavity B connection, piston, which will position ball and be pressed in the first valve pocket groove, makes spool be located in left working position, the pressure that hydraulic fluid port P enters
Power oil is acted on cone valve by intracorporal first oil duct of valve, the first oil hole and the second oil hole, and cone valve is opened, and positioning ball exists
It is pressed in the piston channel of piston under spool effect, spool automatically resets.
In a preferred embodiment of the present invention, the spool is located at middle working position hydraulic fluid port P and is connected to hydraulic fluid port T, and spool is logical
Third spring force centering is crossed, intracorporal first oil hole of valve and third oil hole are closed.
In a preferred embodiment of the present invention, the spool is connected in right working position, hydraulic fluid port P with cavity B, cavity A with
Hydraulic fluid port T connection, piston, which will position ball and be pressed in the second valve pocket groove, makes spool be located in right working position, the pressure that hydraulic fluid port P enters
Power oil is acted on cone valve by intracorporal second oil duct of valve, third oil hole and the second oil hole, and cone valve is opened, and positioning ball exists
It is pressed in the piston channel of piston under spool effect, spool automatically resets.
In a preferred embodiment of the present invention, the spool is in floating working position, hydraulic fluid port P, cavity A, cavity B with oil
Mouth T connection, piston is pressed in third valve pocket groove in positioning ball makes spool be located in floating working position, the pressure that hydraulic fluid port P enters
Power oil cannot open cone valve by intracorporal first oil duct of valve, the second oil hole, third oil hole, the pressure of the second oil hole,
Spool works in floating bit.
The beneficial effects of the present invention are: spool position reset device of the present invention, after spool commutation, spool can rest on work
Make position, when system pressure is excessively high, spool can automatically reset, to protect executing agency.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of one preferred embodiment of spool position reset device of the present invention；
Fig. 2 be shown in spool position reset device shown in Fig. 1 schematic diagram；
Fig. 3 is the partial structural diagram of another working condition of the device of spool position reset shown in Fig. 1；
Fig. 4 is the schematic diagram of shown spool position reset device shown in Fig. 2；
Fig. 5 is the partial structural diagram of another working condition of the device of spool position reset shown in Fig. 1；
Fig. 6 is the schematic diagram of shown spool position reset device shown in Fig. 5；
Fig. 7 is the partial structural diagram of another working condition of the device of spool position reset shown in Fig. 1；
Fig. 8 is the schematic diagram of shown spool position reset device shown in Fig. 6；
The components in the drawings are labeled as follows: 1, spool, 2, valve body, 3, valve pocket, 4, cone valve, the 5, first spring, 6, positioning
Ball, 7, piston, 8, second spring, 9, third spring, the 11, first oil hole, the 12, second oil hole, 13, third oil hole, 21,
First oil duct, the 22, second oil duct, cavity A, cavity B, hydraulic fluid port P, hydraulic fluid port T, hydraulic fluid port T2, the 31, first valve pocket oil groove, the 32, second valve
Set groove, 33, third valve pocket groove, 71, piston channel, 101, left working position, 102, middle working position, 103, right working position,
104, floating working position.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, a kind of spool position reset device, the spool 1 including valve body 2 and in valve body 2, spool 1
End is equipped with valve pocket 3, and cone valve 4 is connected on spool 1, piston 7 is equipped on the inside of valve pocket 3, piston 7 is set to 4 one end of cone valve, valve pocket 3
The positioning ball 6 for positioning and resetting spool is equipped between piston 7, positioning ball 6, which is pressed on valve pocket 3, positions spool 1, fixed
Position ball 6, which is pressed on piston 7, makes spool 1 automatically reset.
In addition, the hydraulic oil that valve body 2 enters opens cone valve 4 and pushes piston 7 mobile, positioning ball 6 is acted on by spool 1 and being pressed
Tightly reset on piston 7 spool 1.
In addition, being arranged with the first spring 5 on piston 7, piston 7 is pressed on valve pocket for ball 6 is positioned by the pressure of the first spring 5
On 3, position spool 1.
In addition, cone valve 4 is equipped with second spring 8, when the pressure for the hydraulic oil that valve body 2 enters is greater than 8 pressure of second spring,
Cone valve 4 is opened.
In addition, being equipped with cavity A, cavity B, hydraulic fluid port P and hydraulic fluid port T in valve body 2, spool 1 has left working position 101, middle work
Position 102, right working position 103 and floating bit 104, switching cavity A, cavity B, hydraulic fluid port P and hydraulic fluid port when spool 2 is located at different operating position
Connected relation between T.
In addition, valve pocket 3 is equipped with the first valve pocket groove 31, the second valve pocket groove 32 and third valve pocket groove 33, on piston 7
With piston channel 71, positioning ball 6 and being pressed in piston channel 71 positions spool, and positioning ball 6 is pressed on the first valve pocket groove
31, position the spool 1 in different operating position on the second valve pocket groove 32 or third valve pocket groove 33.
It is connected in addition, spool 1 is located at left 101 hydraulic fluid port P of working position with cavity A, hydraulic fluid port T is connected to cavity B, and piston 7 will be determined
Position ball 6, which is pressed in the first valve pocket groove 31, makes spool 1 be located in left working position 101, and the pressure oil that hydraulic fluid port P enters passes through valve body
The first oil duct 21, the first oil hole 11 and the second oil hole 12 in 2 act on cone valve 4, and cone valve 4 is opened, and position ball 6 in valve
Core 1 is pressed in the piston channel 71 of piston 7 under acting on, and spool 1 automatically resets.
It is connected in addition, spool 1 is located at middle 102 hydraulic fluid port P of working position with hydraulic fluid port T, spool 1 passes through the 9 power centering of third spring, valve
The first oil hole 11 and third oil hole 13 in body 2 are closed.
In addition, spool 1, in right working position 103, hydraulic fluid port P is connected to cavity B, and cavity A is connected to hydraulic fluid port T, piston 7 will be positioned
Ball 6, which is pressed in the second valve pocket groove 32, makes spool 1 be located in right working position 103, and the pressure oil that hydraulic fluid port P enters passes through valve body 2
Interior the second oil duct 22, third oil hole 13 and the second oil hole 12 acts on cone valve 4, and cone valve 4 is opened, and positions ball 6 in valve
Core 1 is pressed in the piston channel 71 of piston 7 under acting on, and spool 1 automatically resets.
In addition, spool 1, in floating working position 104, hydraulic fluid port P, cavity A, cavity B are connected to hydraulic fluid port T, and piston 7 is positioning
Ball 6, which is pressed in third valve pocket groove 33, makes spool 1 be located in floating working position 104, and the pressure oil that hydraulic fluid port P enters passes through valve body
The first oil hole 11, the second oil hole 12, third oil hole 13 in 2 are connected to oil duct T2, and the pressure of the second oil hole 12 is not
Cone valve 4, working position 102 in the reply of spool 1 can be opened.
The specific working principle is as follows by the present invention:
Fig. 1 and Fig. 2, the work of spool 1 is in the logical oil of left 101 hydraulic fluid port P of working position and cavity A, cavity B and the logical oil of hydraulic fluid port T.Piston
7 under the action of the first spring 5, positioning ball 6 are pressed in the first valve pocket groove 31 of valve pocket 3, spool 1 is located in left work
Position 101.Hydraulic fluid port P pressure oil acts on cone valve 4 through the first oil duct 21, the first oil hole 11, the second oil hole 12, when pressure reaches
When to the first 5 setting value of spring, cone valve 4 is opened, and cavity A sets up pressure, and piston 7 is pushed to move right, and positions ball 6 in spool
It is expressed in the piston channel 71 of piston 7 under the effect of 1 reset force by valve pocket 3, spool 1 automatically resets.
Fig. 3 and Fig. 4, the work of spool 1 is in middle working position 102, hydraulic fluid port P and the logical oil of hydraulic fluid port T.Spool 1 is right by third spring 9
In.First oil hole 11, third oil hole 13 are covered, are not attached to lead to each hydraulic fluid port.
Fig. 5 and Fig. 6, the work of spool 1 is in the logical oil of right 103 hydraulic fluid port P of working position and cavity B, cavity A and the logical oil of hydraulic fluid port T.Piston
7 under the action of second spring 8, positioning ball 6 are pressed in the second valve pocket groove 32 of valve pocket 3, spool 1 is located in right work
Position 103.Hydraulic fluid port P pressure oil acts on cone valve 4 through the second oil duct 22, third oil hole 13, the second oil hole 12, when pressure reaches
When to the first 5 setting value of spring, cone valve 4 is opened, and cavity A sets up pressure, and piston 7 is pushed to move right, and positions ball 6 in spool
It is extruded in the piston channel 71 of piston 7 under the effect of 1 reset force, spool 1 automatically resets.
Fig. 7 and Fig. 8, the work of spool 1 is in floating bit 104, hydraulic fluid port P and the logical oil of hydraulic fluid port T, cavity A and the logical oil of hydraulic fluid port T, cavity B
With the logical oil of hydraulic fluid port T, positioning ball 6 is pressed in the third valve pocket groove 33 of valve pocket 3 by piston 7 under the action of second spring 8,
Spool 1 is located in floating working position 104.Hydraulic fluid port P pressure oil is through the first oil hole 11, the second oil hole 12, third oil hole 13
Be connected to oil duct T2, the insufficient pressure in the second oil hole 12 to open cone valve 4, spool 1 can only outer active force next time in
Working position 102.
It is different from the prior art, spool position reset device of the present invention, after spool commutation, spool can rest on working position
It sets, when system pressure is excessively high, spool can automatically reset, to protect executing agency.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (8)
1. a kind of spool position reset device, which is characterized in that including valve body and be set to the intracorporal spool of valve, the spool end
End is equipped with valve pocket, and cone valve is connected on the spool, piston is equipped on the inside of the valve pocket, the piston is set to cone valve one end, institute
The positioning ball being equipped between valve pocket and piston for positioning and resetting spool is stated, the positioning ball, which is pressed on valve pocket, determines spool
Position, positioning ball, which is pressed on piston, makes spool automatically reset, and the valve pocket is equipped with the first valve pocket groove, the second valve pocket groove
With third valve pocket groove, there is piston channel, the positioning ball, which is pressed in piston channel, makes valve core reset, institute on the piston
Stating positioning ball and being pressed on the first valve pocket groove, the second valve pocket groove or third valve pocket groove makes the spool in different operating position
Positioning, the spool are connected to hydraulic fluid port T in floating working position, hydraulic fluid port P, cavity A, cavity B, and piston is pressed in positioning ball
Spool is set to be located in floating working position in third valve pocket groove, the pressure oil that hydraulic fluid port P enters passes through intracorporal first oil duct of valve, the
Two oil holes, third oil hole, the pressure of the second oil hole cannot open cone valve, and spool works in floating bit.
2. spool position reset device according to claim 1, which is characterized in that the hydraulic oil that the valve body enters makes to bore
Valve is opened, and high pressure oil pushes piston mobile, and positioning ball is pressed on piston by the effect of valve core reset power, with piston move to right steel ball to
Piston radial is mobile, and steel ball is pressed in piston channel, positioning lift between steel ball and valve pocket, valve core reset.
3. spool position reset device according to claim 2, which is characterized in that the piston is equipped with the first spring,
The piston is pressed on valve pocket by the pressure of the first spring by ball is positioned, and spool is positioned.
4. spool position reset device according to claim 2, which is characterized in that the cone valve is equipped with second spring,
When the pressure for the hydraulic oil that the valve body enters is greater than second spring pressure, cone valve is opened.
5. according to any spool position reset device of claim 2-4, which is characterized in that be equipped with cavity in the valve body
A, cavity B, hydraulic fluid port P and hydraulic fluid port T, the spool have left working position, middle working position, right working position and floating bit, the spool
Switch the connected relation between cavity A, cavity B, hydraulic fluid port P and hydraulic fluid port T when positioned at different operating position.
6. spool position reset device according to claim 1, which is characterized in that the spool is located at left working position hydraulic fluid port
P is connected to cavity A, and hydraulic fluid port T is connected to cavity B, and piston, which will position ball and be pressed in the first valve pocket groove, makes spool be located in a left side
Working position, the pressure oil that hydraulic fluid port P enters act on cone valve by intracorporal first oil duct of valve, the first oil hole and the second oil hole
On, cone valve is opened, and in the piston channel that positioning ball is pressed on piston under spool effect, spool automatically resets.
7. spool position reset device according to claim 1, which is characterized in that the spool is located at middle working position hydraulic fluid port
P is connected to hydraulic fluid port T, and by the centering of third spring, intracorporal first oil hole of valve and third oil hole are closed spool.
8. spool position reset device according to claim 1, which is characterized in that the spool is in right working position, hydraulic fluid port P
It is connected to cavity B, cavity A is connected to hydraulic fluid port T, and piston, which will position ball and be pressed in the second valve pocket groove, makes spool be located in right work
Make position, the pressure oil that hydraulic fluid port P enters acts on cone valve by intracorporal second oil duct of valve, third oil hole and the second oil hole
On, when pressure reaches setting value, cone valve is opened, and high pressure oil acts on the left of piston and piston is pushed to move right, and positions ball
Steel ball is moved to right to piston radial movement with piston by the effect of valve core reset power, and positioning ball is pressed in the piston channel of piston, valve
Core automatically resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817434.XA CN106402070B (en) | 2016-09-13 | 2016-09-13 | Spool position reset device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610817434.XA CN106402070B (en) | 2016-09-13 | 2016-09-13 | Spool position reset device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106402070A CN106402070A (en) | 2017-02-15 |
| CN106402070B true CN106402070B (en) | 2019-04-09 |
Family
ID=57999515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610817434.XA Active CN106402070B (en) | 2016-09-13 | 2016-09-13 | Spool position reset device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402070B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838376A (en) * | 2017-02-17 | 2017-06-13 | 中国人民解放军军事交通学院 | A kind of three-position electromagnetic high voltage pulse reversal valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936422A (en) * | 2010-08-19 | 2011-01-05 | 合肥长源液压件有限责任公司 | Positioning and resetting structure of hand-operated direction valve |
| CN203500562U (en) * | 2013-08-13 | 2014-03-26 | 河北日升液压技术有限公司 | Load feedback self-resetting reversing valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1110013B (en) * | 1954-04-30 | 1961-06-29 | Franz Schmidt | Pressure medium control for the pressure medium inflow and outflow to a hydraulic servo motor |
| DE3436567C2 (en) * | 1984-10-05 | 1995-04-13 | Teves Gmbh Alfred | Hydraulic brake system with slip control |
| CN2924107Y (en) * | 2006-03-27 | 2007-07-18 | 泸州市江阳区长江液压配件总厂 | Oil-circuit converter |
| CN201262166Y (en) * | 2008-05-19 | 2009-06-24 | 浙江临海海宏集团有限公司 | Integral multichannel reversal valve of loader |
| CN206092558U (en) * | 2016-09-13 | 2017-04-12 | 江苏恒立液压科技有限公司 | Case location resetting means |
-
2016
- 2016-09-13 CN CN201610817434.XA patent/CN106402070B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936422A (en) * | 2010-08-19 | 2011-01-05 | 合肥长源液压件有限责任公司 | Positioning and resetting structure of hand-operated direction valve |
| CN203500562U (en) * | 2013-08-13 | 2014-03-26 | 河北日升液压技术有限公司 | Load feedback self-resetting reversing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106402070A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111173800B (en) | Electrohydraulic control valve for hydraulic operating mechanism and electromagnetic pilot valve and pilot valve thereof | |
| CN110131433B (en) | Switching valve capable of increasing response time | |
| CN106402070B (en) | Spool position reset device | |
| CN106051186B (en) | Flow type balanced valve with pooling feature | |
| CN204344559U (en) | A kind of changeover valve core | |
| CN109764018B (en) | Multi-way valve with unloading and oil return logic functions in working piece | |
| CN204677802U (en) | There is the on-off seat globe valve of quick locking structure | |
| CN108266431B (en) | Two-stage pressure bidirectional overflow valve | |
| CN203823107U (en) | Valve core component and electromagnetic valve adopting same | |
| CN106837921B (en) | Pressurizing cylinder | |
| CN106051185B (en) | A kind of balanced valve built in pooling feature | |
| CN206092558U (en) | Case location resetting means | |
| KR101448429B1 (en) | Cylinder loaded type opening and shutting valve | |
| CN201348062Y (en) | Pneumatic reversal valve | |
| CN105201947A (en) | Electrohydraulic reversing valve capable of maintaining valve position under hydraulic pressure | |
| CN105443486A (en) | Direct-acting type proportional throttle valve | |
| CN205036666U (en) | Hydraulic pressure keeps electro -hydraulic reversing valve of valve position | |
| CN205956446U (en) | Switching -over valve system of axial structure | |
| CN110805725A (en) | Direct-acting electromagnetic one-way valve | |
| CN104653537B (en) | Lockable reversing valve | |
| CN104454725B (en) | A kind of reversing valve core | |
| CN211082934U (en) | Ball type valve core electromagnetic valve device | |
| CN103836016A (en) | Electric hydraulic control check valve | |
| CN108413085B (en) | Pressure reducing one-way valve | |
| CN203488466U (en) | Dual-control multi-position reversing hydraulic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |