CN103644365A - Limiting adjusting device for opening of cartridge valve - Google Patents
Limiting adjusting device for opening of cartridge valve Download PDFInfo
- Publication number
- CN103644365A CN103644365A CN201310652450.4A CN201310652450A CN103644365A CN 103644365 A CN103644365 A CN 103644365A CN 201310652450 A CN201310652450 A CN 201310652450A CN 103644365 A CN103644365 A CN 103644365A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- spacing mandril
- housing
- spool
- cartridge valve
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
- F16K1/523—Means for additional adjustment of the rate of flow for limiting the maximum flow rate, using a stop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/12—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened
- F16K1/126—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with streamlined valve member around which the fluid flows when the valve is opened actuated by fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention relates to a limiting adjusting device for the opening of a cartridge valve. The limiting adjusting device for the opening of the cartridge valve comprises a shell, a driving mechanism, a main shaft, a limiting ejector rod, a valve plug and a valve sleeve, wherein the driving mechanism is fixedly connected with one end of the main shaft, the other end of the main shaft is connected with one end of the limiting ejector rod through a thread transmission pair, the other end of the limiting ejector rod is inserted into a control cavity of the valve plug, and a rotation stopping mechanism is arranged between the shell and the limiting ejector rod. Pilot hydraulic oil enters the control cavity of the valve plug through an oil circuit on the shell, the limiting ejector rod is completely immersed in the hydraulic oil in the control cavity of the cartridge valve, and the borne hydraulic pressure can automatically achieve the balance; all bearings and the thread transmission pair arranged between the main shaft and the limiting ejector rod are immersed in the oil, self lubrication is achieved, the service life of the components is prolonged, and adjusting accuracy of the components is improved.
Description
Technical field
The invention belongs to hydrovalve technical field, relate to a kind of cartridge valve aperture means for adjusting limit of movement.
Background technique
Between traditional cartridge valve spacing mandril and the cover plate of cartridge valve, directly adopt and be threaded, by rotary spacing push rod, regulate it with respect to the position of plug-in mounting spool, thereby change the maximum opening of cartridge valve.The shortcoming of this mode is: only some is immersed in the hydraulic pressure cavity volume being communicated with plug-in mounting spool control chamber spacing mandril, suffered hydraulic coupling does not have complete equilibrium, when therefore in cartridge valve control chamber, oil liquid pressure is higher, on push rod, bear larger axial force, this axial force acts directly on the screw pair that transmission uses, and causes the rotational resistance of spacing mandril to increase, and screw thread transmission is wearing and tearing and locked easily, be not suitable for driving with motor, cannot realize automatic control.
Summary of the invention
Object of the present invention, for the deficiencies in the prior art, provides a kind of cartridge valve aperture means for adjusting limit of movement.
Apparatus of the present invention comprise housing, driving mechanism, main shaft, spacing mandril, spool, valve pocket; By mounting bracket, bell jar, base plate, be fixedly connected with from top to bottom the housing that forms apparatus of the present invention; In housing, be provided with successively from top to bottom main shaft, spacing mandril, the output shaft of driving mechanism is fixedly connected with one end of main shaft, the other end of main shaft is connected with one end of spacing mandril by screw thread transmission, the other end of spacing mandril inserts the control chamber of spool, for limiting spool with respect to the maximum opening of valve pocket, guide's hydraulic oil enters the control chamber of cartridge valve by housing.Spool is located at valve pocket inside, and the bottom of valve pocket has actuator port A, and side has actuator port B.When the oil pressure of spool control chamber is during higher than the oil pressure of actuator port A and actuator port B, spool moves downward, and cuts off the oil circuit between actuator port A and actuator port B.When the oil pressure of spool control chamber is during lower than the oil pressure of actuator port A and actuator port B, spool moves upward under the oil pressure effect of actuator port A and actuator port B, until contact with spacing mandril, impel the valve port between actuator port A and actuator port B to open, the maximum opening of valve port is determined by the position of spacing mandril.
Between housing and spacing mandril, be provided with rotation preventive mechanism, for preventing that spacing mandril from following main shaft and rotating, spacing mandril can only be along its axial motion.Can be the mode of following two kinds of realizations: first kind of way is driven vertically guiding groove on spacing mandril, the while installs standstill locking pin or realizes the structure of identical guide function on housing; The second way is on housing, to drive guiding groove, standstill locking pin is installed on spacing mandril or is realized the structure of identical guide function.
Guide's hydraulic oil can be entered by the oil circuit on housing cartridge valve and control chamber.This oil circuit can have two kinds of forms: a kind of is to control guide's hydraulic oil directly by the pilot control hydraulic fluid port C on housing, to be connected with spool control chamber; Another kind is to be connected with guide's oil-feed port X or guide's return opening Y by the selector valve control spool control chamber being arranged on housing.
Main shaft is connected with bell jar by the first radial bearing, the second radial bearing, to reduce the rotational resistance of main shaft; Main shaft is connected with bell jar by thrust-bearing, for bearing the suffered axial pressure of main shaft, to reduce the rotational resistance of main shaft.
Between main shaft and bell jar, bell jar and base plate, base plate and valve pocket, be equipped with seal ring, for sealing device structure.
Guide's hydraulic oil enters the control chamber of spool by the oil circuit on housing, spacing mandril is immersed in cartridge valve completely and controls in the hydraulic oil in chamber, and suffered hydraulic coupling reaches balance automatically.
Described driving mechanism can adopt manually, stepper motor or with the motor of angular displacement feedback, can be with or not be with speed reducer.When driving mechanism adopts stepper motor to drive, angle of eccentricity is that open loop is controlled.When driving mechanism adopts with the motor of angular displacement feedback, angle of eccentricity is closed loop control.
The regulating method that utilizes said apparatus to carry out spacing mandril is:
Driving mechanism drives main shaft rotation, and main shaft drives spacing mandril to axially move by screw thread transmission, and the whirl-stop device between spacing mandril and housing can only move along its axis spacing mandril and can not rotate with main shaft; The range of spacing mandril is determined by screw thread transmission; By controlling the corner of driving mechanism, regulate Spindle rotation angle degree, indirectly control the axial displacement of spacing mandril.The offset qualification of spacing mandril the maximum opening of valve port.
The invention has the beneficial effects as follows:
By spacing mandril being immersed in completely to cartridge valve, control in the hydraulic oil in chamber, make the suffered hydraulic coupling autobalance of spacing mandril, make the resistance to motion of screw thread transmission not be subject to cartridge valve to control the impact of chamber oil pressure.In addition, the suffered responsive to axial force of main shaft is on thrust-bearing.By above-mentioned measure, greatly reduce the adjusting resistance at high oil pressure lower limit push rod, thereby can adopt the motor of smaller power to realize the automatic adjusting of spacing mandril.
Screw thread transmission between all bearings, main shaft and spacing mandril is all immersed in hydraulic oil, has realized selflubricating, has improved working life and the degree of regulation of these parts.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the structural representation of the another kind of device of the present invention.
embodiment
Below in conjunction with accompanying drawing, the present invention is further analyzed.
As shown in Figure 1, apparatus of the present invention comprise housing, driving mechanism 1, main shaft 2, spacing mandril 3, spool 4, valve pocket 5;
By mounting bracket 6, bell jar 7, base plate 8, be fixedly connected with from top to bottom the housing that forms apparatus of the present invention; In housing, be provided with successively from top to bottom main shaft 2, spacing mandril 3, the output shaft of driving mechanism 1 is fixedly connected with one end of main shaft 2, the other end of main shaft 2 is connected with one end of spacing mandril 3 by screw thread transmission, the other end of spacing mandril 3 inserts the control chamber 9 of spool 4, for limiting spool 4 with respect to the range of valve pocket 5.Spool 4 is located at valve pocket 5 inside, and the bottom of valve pocket 5 has actuator port A, and side has two symmetrical actuator port B.The state of spool On/Off is determined jointly by the oil pressure of control chamber and the oil pressure of actuator port A and actuator port B.When the oil pressure ratio actuator port A of control chamber and the oil pressure of actuator port B are when high, spool moves downward, until the oil circuit between actuator port A and actuator port B is cut off completely.When the oil pressure ratio actuator port A of control chamber and the low fuel pressure of actuator port B, spool moves upward, until contact with spacing mandril, impels the valve port between actuator port A and actuator port B to open, and the maximum opening of valve port is determined by the position of spacing mandril.
Between housing and spacing mandril 3, be provided with rotation preventive mechanism, for preventing that spacing mandril 3 from following main shaft 2 and rotating, restriction spacing mandril 3 can only be along its axial motion.Can be the mode of following two kinds of realizations: first kind of way is driven vertically guiding groove on spacing mandril 3, the while installs standstill locking pin or realizes the structure of identical guide function on housing; The second way is on housing, to drive guiding groove, standstill locking pin is installed on spacing mandril 3 or is realized the structure of identical guide function.
Guide's hydraulic oil can be entered by the oil circuit on base plate 8 cartridge valve and control chamber 9.This oil circuit can have two kinds of forms: a kind of form as shown in Figure 1, has pilot control hydraulic fluid port C and is directly connected with spool control chamber on base plate 8, and guide's hydraulic oil is directly introduced spool control chamber by pilot control hydraulic fluid port C; Another kind of form as shown in Figure 2, on base plate 8, have guide's oil-feed port X(high pressure) and guide's return opening Y(low pressure), guide's oil-feed port X is not directly connected with spool control chamber with guide's return opening Y, by selector valve 14 control loops, be that guide's oil-feed port X is connected with control chamber during position as shown in the figure, control chamber connects high pressure oil, after selector valve 14 commutations, guide's return opening Y is connected with control chamber, and control chamber connects low pressure oil, to realize off-load.
Between main shaft 2 and bell jar 7, bell jar 7 and base plate 8, base plate 8 and valve pocket 5, be equipped with seal ring, for sealing device structure.
Described driving mechanism 1 can adopt manually, stepper motor or with the motor of angular displacement feedback, can be with or not be with speed reducer.When driving mechanism 1 adopts stepper motor to drive, main shaft 2 corners are that open loop is controlled.When driving mechanism 1 adopts with the motor of angular displacement feedback, main shaft 2 corners are closed loop control.
The regulating method that utilizes said apparatus to carry out spacing mandril 3 is:
Driving mechanism 1 drives main shaft 2 rotations, and main shaft 2 drives spacing mandril 3 to axially move by screw thread transmission; Whirl-stop device prevents that spacing mandril 3 from following main shaft 2 and rotating, and can only move along its axis; The range of spacing mandril 3 is determined by screw thread transmission; By controlling the corner of driving mechanism 1, regulate main shaft 2 angle of swing, indirectly control the axial displacement of spacing mandril 3.
The bottom filler opening A of valve pocket 5 is connected with oil circuit, oil circuit will be sent into hydraulic oil the side oil outlet B of valve pocket 5 under the effect of pressure, makes spool 4 be subject to active force upwards, impels spool 4 to move up, until spool 4 touches spacing mandril 3, reach maximum opening.
Above-described embodiment is not that the present invention is not limited only to above-described embodiment for restriction of the present invention, as long as meet requirement of the present invention, all belongs to protection scope of the present invention.
Claims (3)
1. a cartridge valve aperture means for adjusting limit of movement, is characterized in that comprising housing, driving mechanism, main shaft, spacing mandril, spool, valve pocket;
By mounting bracket, bell jar, base plate, be fixedly connected with from top to bottom the housing that forms this device; In housing, be provided with successively from top to bottom main shaft, spacing mandril; The output shaft of driving mechanism is fixedly connected with one end of main shaft, and the other end of main shaft is connected with one end of spacing mandril by screw thread transmission, and the other end of spacing mandril inserts the control chamber of spool, for limiting spool with respect to the range of valve pocket; Between housing and spacing mandril, be provided with rotation preventive mechanism, restriction spacing mandril can only be along its axial motion.
2. a kind of cartridge valve aperture means for adjusting limit of movement as claimed in claim 1, is characterized in that: during work, main shaft only rotates around its axis, not along its axial motion; Between main shaft and housing, thrust-bearing is installed, for bearing the suffered axial pressure of main shaft, with reduce main shaft rotational resistance.
3. a kind of cartridge valve aperture means for adjusting limit of movement as claimed in claim 1, it is characterized in that: guide's hydraulic oil enters the control chamber of spool by the oil circuit on housing, spacing mandril is immersed in cartridge valve completely and controls in the hydraulic oil in chamber, and suffered hydraulic coupling reaches balance automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652450.4A CN103644365B (en) | 2013-12-05 | 2013-12-05 | Limiting adjusting device for opening of cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652450.4A CN103644365B (en) | 2013-12-05 | 2013-12-05 | Limiting adjusting device for opening of cartridge valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103644365A true CN103644365A (en) | 2014-03-19 |
| CN103644365B CN103644365B (en) | 2017-01-18 |
Family
ID=50249624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310652450.4A Active CN103644365B (en) | 2013-12-05 | 2013-12-05 | Limiting adjusting device for opening of cartridge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103644365B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179347A (en) * | 2015-08-13 | 2015-12-23 | 广东伊之密精密机械股份有限公司 | Device capable of adjusting opening degree of cartridge valve automatically |
| CN105570222A (en) * | 2016-02-17 | 2016-05-11 | 武汉市航天汉诺优科技有限公司 | Numerical-control spinning-core type proportional cartridge valve |
| CN109027273A (en) * | 2018-10-23 | 2018-12-18 | 广州达意隆包装机械股份有限公司 | A kind of flow-limiting valve and filling apparatus |
| CN110792787A (en) * | 2018-08-02 | 2020-02-14 | 浙江盾安禾田金属有限公司 | Stop valve |
| CN110848192A (en) * | 2019-10-30 | 2020-02-28 | 宁波斯达弗液压传动有限公司 | Manual reversing valve with middle position resetting function |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794651A (en) * | 1996-03-13 | 1998-08-18 | General Hydraulics Corporation | Valve adaptor cap |
| CN201787099U (en) * | 2010-09-29 | 2011-04-06 | 山东泰丰液压股份有限公司 | Dynamic interposing valve having stroke limitation |
| CN201972986U (en) * | 2011-02-22 | 2011-09-14 | 宁波铝台精机有限公司 | Flow controllable cartridge valve |
| CN202048040U (en) * | 2011-04-29 | 2011-11-23 | 佛山市顺德区震德塑料机械有限公司 | Novel hydraulic safety valve |
| CN102635583A (en) * | 2012-03-27 | 2012-08-15 | 西安交通大学 | Combined type flow valve for liquid of high-pressure large-flow alternating current servo direct-drive machine |
| CN102705286A (en) * | 2012-05-25 | 2012-10-03 | 西安交通大学 | Balanced high-pressure large-current AC (Alternating Current) servo direct-driven cartridge valve |
| CN202768014U (en) * | 2012-07-27 | 2013-03-06 | 福建中天建工机械有限公司 | Lining trolley for emergency parking strip |
| CN203641655U (en) * | 2013-12-05 | 2014-06-11 | 杭州泛康科技有限公司 | Cartridge valve opening limit regulator |
-
2013
- 2013-12-05 CN CN201310652450.4A patent/CN103644365B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794651A (en) * | 1996-03-13 | 1998-08-18 | General Hydraulics Corporation | Valve adaptor cap |
| CN201787099U (en) * | 2010-09-29 | 2011-04-06 | 山东泰丰液压股份有限公司 | Dynamic interposing valve having stroke limitation |
| CN201972986U (en) * | 2011-02-22 | 2011-09-14 | 宁波铝台精机有限公司 | Flow controllable cartridge valve |
| CN202048040U (en) * | 2011-04-29 | 2011-11-23 | 佛山市顺德区震德塑料机械有限公司 | Novel hydraulic safety valve |
| CN102635583A (en) * | 2012-03-27 | 2012-08-15 | 西安交通大学 | Combined type flow valve for liquid of high-pressure large-flow alternating current servo direct-drive machine |
| CN102705286A (en) * | 2012-05-25 | 2012-10-03 | 西安交通大学 | Balanced high-pressure large-current AC (Alternating Current) servo direct-driven cartridge valve |
| CN202768014U (en) * | 2012-07-27 | 2013-03-06 | 福建中天建工机械有限公司 | Lining trolley for emergency parking strip |
| CN203641655U (en) * | 2013-12-05 | 2014-06-11 | 杭州泛康科技有限公司 | Cartridge valve opening limit regulator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179347A (en) * | 2015-08-13 | 2015-12-23 | 广东伊之密精密机械股份有限公司 | Device capable of adjusting opening degree of cartridge valve automatically |
| CN105570222A (en) * | 2016-02-17 | 2016-05-11 | 武汉市航天汉诺优科技有限公司 | Numerical-control spinning-core type proportional cartridge valve |
| CN105570222B (en) * | 2016-02-17 | 2017-09-22 | 武汉市汉诺优电控有限责任公司 | Core type proportional cartridge valve is revolved in a kind of numerical control |
| CN110792787A (en) * | 2018-08-02 | 2020-02-14 | 浙江盾安禾田金属有限公司 | Stop valve |
| CN110792787B (en) * | 2018-08-02 | 2022-06-17 | 浙江盾安禾田金属有限公司 | Stop valve |
| CN109027273A (en) * | 2018-10-23 | 2018-12-18 | 广州达意隆包装机械股份有限公司 | A kind of flow-limiting valve and filling apparatus |
| CN110848192A (en) * | 2019-10-30 | 2020-02-28 | 宁波斯达弗液压传动有限公司 | Manual reversing valve with middle position resetting function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103644365B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103644365A (en) | Limiting adjusting device for opening of cartridge valve | |
| CN202501178U (en) | Lubricating oil pump | |
| CN105179335A (en) | Hydraulic steering engine control system | |
| CN103671093A (en) | Displacement-variable impeller pump | |
| CN204042397U (en) | Multiple exit positive displacement grease distributor | |
| CN203641655U (en) | Cartridge valve opening limit regulator | |
| CN106762913B (en) | Servo forges valve and servo system fastly | |
| CN105179706B (en) | High-pressure pressure regulating valve and its assembly method | |
| CN103216478A (en) | Digital hydraulic motor | |
| CN103758809A (en) | Flow control reversing valve | |
| CN109296579B (en) | Balance valve and hydraulic motor | |
| CN201650907U (en) | Zero position holding mechanism of 2D digital servo valve | |
| CN107893702B (en) | Fuel oil adjusting device of gas turbine | |
| CN107317252B (en) | Switchgear | |
| CN107448381B (en) | Power device | |
| CN106143840A (en) | A kind of underwater robot ultra-deep ballast automatic releasing device | |
| CN202360491U (en) | Flow control valve for hydraulic valve plate of automatic transmission | |
| CN102506100B (en) | Hydraulic brake device | |
| CN106382272B (en) | A kind of output flow is not by the proportion directional flow rotary valve of load disturbance | |
| CN100354532C (en) | Hydraulic and automatic flow control valve | |
| CN204986342U (en) | Multi -functional electronic grease lubrication pump | |
| CN107489612B (en) | Motor power device | |
| CN112959132A (en) | Automatic speed-regulating spraying milling center | |
| CN209163892U (en) | A kind of control pressurer system based on fixed displacement lubricating oil pump | |
| CN104533740A (en) | Servo variable swash plate piston pump and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |