CN202251200U - Manual operation proportional direction flow control valve - Google Patents
Manual operation proportional direction flow control valve Download PDFInfo
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- CN202251200U CN202251200U CN 201120336324 CN201120336324U CN202251200U CN 202251200 U CN202251200 U CN 202251200U CN 201120336324 CN201120336324 CN 201120336324 CN 201120336324 U CN201120336324 U CN 201120336324U CN 202251200 U CN202251200 U CN 202251200U
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- hole
- gear
- spool
- flow control
- valve body
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Abstract
The utility model discloses a manual operation proportional direction flow control valve, which comprises a valve body, a valve core, a front cover, a rear cover and a control device. The valve core is arranged inside the valve body, and the front cover and the rear cover are distributed at two ends of the valve body and connected with the valve body. The control device is arranged inside the front cover and matched with the valve core for use. The manual operation proportional direction flow control valve is simple in structure and convenient to use.
Description
Technical field
The utility model relates to a kind of hydraulic control valve, particularly a kind of hand behaviour proportion directional flow control valve.
Background technique
In some hydraulic system, typically like the testing machine hydraulic system, often use the rise and fall speed that servovalve is controlled the testing apparatus oil cylinder, and the size of control load pressure.
Referring to shown in Figure 1, adopt the hydraulic system principle of servovalve; From the hydraulic oil that oil sources 11 is come, its pressure is regulated relief valve 12 and is limited, and oil supply pressure table 13 is used to observe oil sources 11 pressure.Piston motion direction and piston oil-cylinder 15 lower ends that servovalve 16 is used to control oil cylinder 15 are the pressure of rod chamber, and oil cylinder 15 pressure are observed with oil cylinder working-pressure table 14.3 positions, 16 fens left, center, right of servovalve are controlled by electric signal.During meta, separate the path of oil sources 11 and oil cylinder 15, it is motionless that oil cylinder 15 pistons keep, and 15 times cavity pressures of oil cylinder remain unchanged; During position, a left side, oil cylinder 15 cavity of resorptions are communicated with fuel tank, and piston descends, and pressure reduces, and regulate the input electrical signal size and can regulate rate of descent and pressure; In the time of right, oil cylinder 15 cavity of resorptions are communicated with oil sources 11, and piston rises, and pressure increases, and regulate the input electrical signal size and can regulate the rate of climb and pressure.
Servovalve has the speed of response that is exceedingly fast, but complex structure costs an arm and a leg, and oil cleanliness is required high, otherwise stuck easily, so the servo applications system will be equipped with the high filter plant of filter precision, the working service cost is high.
The model utility content
For solving the problems of the technologies described above, the purpose of the utility model is to provide a kind of overall structure and processing technology simple, is convenient to mounting or dismounting and maintenance, the hand behaviour proportion directional flow control valve that manufacture cost is lower.
For achieving the above object, the technological scheme of the utility model is following:
A kind of hand behaviour proportion directional flow control valve, said control valve comprises a valve body, a spool, a protecgulum, a bonnet and a control gear; Said spool is placed in the inside of said valve body, and said protecgulum and bonnet are distributed in said two ends of valve body, and is connected with said valve body; It is inner that said control gear is placed in said protecgulum, and the use that matches with said spool.
Preferably, said protecgulum is connected with said valve body through screw with bonnet, and the below of said screw also is provided with spring washer.
Preferably, said valve body comprises main valve hole, filler opening, actuator port, return opening, drain tap; Said filler opening, actuator port, return opening is connected with said main valve hole, and the use that matches.
Preferably, said main valve hole comprises a small through hole and a straight hole, and said small through hole is arranged on the below of said main valve hole, and said straight hole is arranged on the top of said main valve hole.
Preferably, said control gear comprises gear, gear pole, tooth bar and rack bar.
Preferably, said gear is provided with a gear hole, and said gear pole is connected with said gear through gear hole, and the use that matches.
Preferably, an end of said spool is provided with a T-slot, and said spool is connected with said rack bar through said T-slot, and the use that matches.
Preferably, said spool is provided with a throttling groove.
Through technique scheme, the beneficial effect of the utility model is:
The utility model comes driven gear that the spool in the valve body is moved through the gear pole on the control device for pivoting; When the utility model spool during in right position, turn clockwise through gear, make spool be moved to the left; Filler opening communicates with actuator port, and actuator port and return opening are obstructed.It is to make through the triangle throttling groove on the spool to communicate with the actuator port of valve body that filler opening communicates with actuator port.Spool is pushed into high order end, and the opening of throttling groove is big more, and the flow of actuator port is just big more, and the speed that oil cylinder rises is just got over piece, when realizing switching-over, realizes the function of flow control.
When the utility model spool in a when position left side, this valve is rotated counterclockwise through gear, makes spool move right, filler opening and actuator port, return opening are obstructed, actuator port communicates with return opening.It is to make through the triangle throttling groove on the spool to communicate with the actuator port of valve body that actuator port communicates with return opening.Spool is pushed into low order end, and the opening of throttling groove is big more, and the flow of actuator port is just big more, and the speed that oil cylinder descends is just got over piece, when realizing switching-over, realizes the function of flow control.The opening of throttling groove is big more, and the flow of actuator port is just big more, thereby realizes the function of flow control, and the angle of the size of flow and gear pole swing is proportional.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing technology servovalve hydraulic system structure figure.
Fig. 2 is the utility model internal structure schematic representation.
Fig. 3 is the utility model control gear internal structure schematic representation.
Fig. 4 is the structural representation of the utility model spool.
Fig. 5 is the utility model embodiment 1 structural representation.
Fig. 6 is the utility model embodiment 2 structural representations.
Fig. 7 is the utility model embodiment 3 structural representations.
The numeral corresponding part title represented among the figure with letter:
1. chamber, valve body 1-b. main valve hole 1-b1. small through hole 1-c. oil-in 1-d. actuator port 1-e. oil return opening 1-f. drain tap 1-g. straight hole 2. spool 2-a. compensating groove 2-b. throttling channels 3. protecgulum 3-a. rack bar hole 3-c. groove 3-d. right chamber 3-e. screw 3-f. spring washer 4. a bonnet 4-a. left side 5. control device 5-a. gear 5-b. rack 5-c. tooth bar 5-d. rack bar 5-e. gear holes, 6. copper sheathings, 11. oil sources, 12. overflow valves, 13. oil supply pressure table 14. oil cylinder working-pressure table 15. oil cylinders, 16. servo valves.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Referring to shown in Figure 2, a kind of hand behaviour proportion directional flow control valve, Placement is for being threaded, and said control valve comprises a valve body 1, a spool 2, a protecgulum 3, a bonnet 4 and a control gear 5; Said spool 2 is placed in the inside of said valve body 1, and said protecgulum 3 and bonnet 4 are distributed in the two ends of said valve body 1, and is connected with said valve body 1; Said control gear 5 is placed in said protecgulum 3 inside, and the use that matches with said spool 2.
Referring to shown in Figure 2, valve body 1 has comprised main valve hole 1-b, filler opening 1-c, actuator port 1-d, return opening 1-e and drain tap 1-f.Main valve hole 1-b is the main aperture of valve body 1 for this reason, produces the main valve hole 1-b of valve body 1 and three inside grooves (not marking among the figure) on the main valve hole 1-b through Vehicle Processing.Filler opening 1-c, actuator port 1-d, return opening 1-e and drain tap 1-f are connected with externally connected pipe respectively; Simultaneously filler opening 1-c, actuator port 1-d, return opening 1-e respectively with main valve hole 1-b on three inside grooves (not marking among the figure) be connected; Can make pressure oil promote spool 2 and move back and forth, realize the switching of oil circuit.Drain tap 1-f communicates with the straight hole 1-g of main valve hole 1-b below.Its effect is to let the internal leakage oil in the draining chamber flow back to fuel tank, removes the back pressure of spool 2, to guarantee the reliability of working state.The top of main valve hole 1-b is provided with a small through hole 1-b1.The left end of valve body 1 and right-hand member are provided with tapped hole (not marking among the figure), and it is used to install bonnet 4 and protecgulum 3.
Referring to shown in Figure 2, end and intermediate portion are provided with compensating groove 2-a about spool 2, and its effect one is the minute impurities that stores in the fluid, prevents that spool 2 is stuck; The 2nd, but self-aligning, and under the effect of oil pressure, spool 2 will be very even with the oil film in the main valve hole 1-b matching gap, can slow down wearing and tearing, also can reduce internal leakage.On spool 2, establish a triangle throttling groove 2-b, can regulate fluid through spool 2 move left and right and flow through the area size, realize the function of throttling.The left end of spool 2 is fitted in the main valve hole 1-b.
Referring to Fig. 2 and shown in Figure 3, control gear 5 comprises gear 5-a, gear pole 5-b, tooth bar 5-c and rack bar 5-d; One end of said spool 2 is provided with a T-slot 2-c, and said spool 2 is connected with said rack bar 5-d through said T-slot 2-c.
Referring to Fig. 2 and shown in Figure 3, protecgulum 3 integral cast moulding, machining rack bar hole 3-a is used to place rack bar 5-d.The below of rack bar hole 3-a makes the protecgulum aperture and two holes communicate.Groove 3-c is made in the left side of protecgulum 3, places seal ring in the groove 3-c and carries out effective seal.The neutral position of groove 3-c is made right chamber 3-d and is communicated with the straight hole 1-g and the main valve hole 1-b of valve body 1.Protecgulum 3 is installed in the right side of valve body 1, and 3-e fixes through screw.The below of screw 3-e is provided with a spring washer 3-f, can play locking effect.Said gear 5-a is provided with a gear hole 5-e, and in gear pole 5-b load hole, tooth bar 5-c and gear 5-a cooperatively interact and can make spool 2 move left and right.Copper sheathing 6 is inserted in gear pole 5-b, on copper sheathing 6, makes tapped hole, fixing with screw 3-e and protecgulum 3, simultaneously also can spacing and fixed gear bar 5-b.At the cylindrical and the inside groove of copper sheathing 6, all make groove 3-c and be used to place seal ring, can effectively prevent the leakage of fluid like this.
Referring to shown in Figure 2, make groove 3-c at the right-hand member of bonnet 4, place seal ring and carry out effective seal.The neutral position of groove 3-c is made left chamber 4-a and is communicated with the small through hole 1-b1 and the main valve hole 1-b of valve body 1.Bonnet 4 is installed in the left side of valve body 1, and 3-e fixes through screw.The below of screw 3-e is provided with a spring washer 3-f, can play locking effect.
Embodiment 1:
Referring to shown in Figure 5, the utility model spool 2 is when meta, and filler opening 1-c and actuator port 1-d, return opening 1-e and actuator port 1-d and return opening 1-e are obstructed.
Embodiment 2:
Referring to Fig. 3 and shown in Figure 6, the utility model spool 2 is when right position, and 5-a turns clockwise through gear, makes spool 2 be moved to the left, and filler opening 1-c communicates with actuator port 1-d, and actuator port 1-d and return opening 1-e are obstructed.It is to make through the triangle throttling groove 2-b on the spool 2 to communicate with the actuator port 1-d of valve body 1 that filler opening 1-c communicates with actuator port 1-d.Spool 2 is pushed into high order end, and the opening of throttling groove 2-b is big more, and the flow of actuator port 1-d is just big more, and the speed that oil cylinder rises is just got over piece, when realizing switching-over, realizes the function of flow control.
Embodiment 3:
Referring to Fig. 3 and shown in Figure 7, the utility model spool 2 is in a when position left side, and 5-a is rotated counterclockwise through gear, makes spool 2 move right, and filler opening 1-c and actuator port 1-d, return opening 1-e are obstructed, and actuator port 1-d communicates with return opening 1-e.It is to make through the triangle throttling groove 2-b on the spool 2 to communicate with the actuator port 1-d of valve body 1 that actuator port 1-d communicates with return opening 1-e.Spool 2 is pushed into low order end, and the opening of throttling groove 2-b is big more, and the flow of actuator port 1-d is just big more, and the speed that oil cylinder descends is just got over piece, when realizing switching-over, realizes the function of flow control.
Referring to Fig. 2 and shown in Figure 3, the angle of the size of flow and gear pole 5-b swing is proportional.The effect of drain tap 1-f is to let the internal leakage oil among left chamber 4-a and the right chamber 3-d flow back to fuel tank through small through hole 1-b1 and straight hole 1-g, removes the back pressure of spool 2, to guarantee the reliability of working state.
More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (8)
1. a hand behaviour proportion directional flow control valve is characterized in that said control valve comprises a valve body, a spool, a protecgulum, a bonnet and a control gear; Said spool is placed in the inside of said valve body, and said protecgulum and bonnet are distributed in said two ends of valve body, and is connected with said valve body; It is inner that said control gear is placed in said protecgulum, and the use that matches with said spool.
2. a kind of hand behaviour proportion directional flow control valve according to claim 1, it is characterized in that: said protecgulum is connected with said valve body through screw with bonnet, and the below of said screw also is provided with spring washer.
3. a kind of hand behaviour proportion directional flow control valve according to claim 1, it is characterized in that: said valve body comprises main valve hole, filler opening, actuator port, return opening, drain tap; Said filler opening, actuator port, return opening is connected with said main valve hole, and the use that matches.
4. a kind of hand behaviour proportion directional flow control valve according to claim 3, it is characterized in that: said main valve hole comprises a small through hole and a straight hole, and said small through hole is arranged on the below of said main valve hole, and said straight hole is arranged on the top of said main valve hole.
5. a kind of hand behaviour proportion directional flow control valve according to claim 1, it is characterized in that: said control gear comprises gear, gear pole, tooth bar and rack bar.
6. a kind of hand behaviour proportion directional flow control valve according to claim 5, it is characterized in that: said gear is provided with a gear hole, and said gear pole is connected with said gear through gear hole, and the use that matches.
7. according to claim 1 or 5 described a kind of hand behaviour proportion directional flow control valves, it is characterized in that: an end of said spool is provided with a T-slot, and said spool is connected with said rack bar through said T-slot, and the use that matches.
8. a kind of hand behaviour proportion directional flow control valve according to claim 1, it is characterized in that: said spool is provided with a throttling groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120336324 CN202251200U (en) | 2011-09-08 | 2011-09-08 | Manual operation proportional direction flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120336324 CN202251200U (en) | 2011-09-08 | 2011-09-08 | Manual operation proportional direction flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251200U true CN202251200U (en) | 2012-05-30 |
Family
ID=46112450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120336324 Expired - Fee Related CN202251200U (en) | 2011-09-08 | 2011-09-08 | Manual operation proportional direction flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996541A (en) * | 2011-09-08 | 2013-03-27 | 上海立新液压有限公司 | Manual proportional directional flow control valve |
-
2011
- 2011-09-08 CN CN 201120336324 patent/CN202251200U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996541A (en) * | 2011-09-08 | 2013-03-27 | 上海立新液压有限公司 | Manual proportional directional flow control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20160908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |