CN1360156A - Combination valve - Google Patents
Combination valve Download PDFInfo
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- CN1360156A CN1360156A CN 01130179 CN01130179A CN1360156A CN 1360156 A CN1360156 A CN 1360156A CN 01130179 CN01130179 CN 01130179 CN 01130179 A CN01130179 A CN 01130179A CN 1360156 A CN1360156 A CN 1360156A
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- Prior art keywords
- valve
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- air
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- 230000009467 reduction Effects 0.000 claims description 26
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 230000006837 decompression Effects 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000006870 function Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 3
- 230000009471 action Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
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Abstract
A composite valve is composed of a valve body with air inlet and central air inlet, throttle valves on the air inlet and air return pipelines, and an automatic compensating pressure-reducing valve on the valve body. The invention has scientific design and reasonable structure, skillfully combines the throttle valve and the pressure reducing valve together, integrates the functions of the throttle valve and the pressure reducing valve into a whole, has good throttling effect and good compensation effect, and can ensure that the working cylinder is always in a working balance state when being applied to pneumatic equipment so as to meet the air path control requirement of the pneumatic equipment. The device also has the advantages of small volume, simple structure, convenient operation, installation and adjustment, stable and reliable use and the like. The composite valve is a novel structure composite valve which is very suitable for pneumatic control of pneumatic equipment pipelines.
Description
Technical field
What the present invention relates to is the improvement of valve arrangement, especially a kind of combination valve that is used for pneumatic control/equipment.
Technical background
In factory's material flows automation and industrial manufacturing equipment field, adopt the equipment of pure pneumatic control and system a lot, as cable-styled balace weight a kind of agravic haulage equipment of pure pneumatic control.This equipment is very high to operating positioning requirements.The existing control gas circuit design that is used for pure pneumatic control equipments such as cable-styled balace weight is all undesirable always, needs in the whole gas circuit a plurality of throttle valve are installed, and disposes the agravic carrying function that a plurality of reduction valve and other valve body could be realized pneumatic cable-styled balace weight.Because link is many, leak and loss many, make often job insecurity of system, it is leading sometimes to lag behind sometimes, excessive velocities sometimes, speed is very slow sometimes, is difficult to accurate location, effect is not fine; And because control is complicated in the whole gas circuit, any one joint goes wrong, and all can influence the proper functioning of system, and mass production is continuous, the needs of reliably working thereby be difficult to satisfy; Also brought the inconvenience in the maintenance.
Summary of the invention
The objective of the invention is deficiency at above-mentioned throttle valve, reduction valve control system, a kind of combination valve is provided, this combination valve has the function of general throttle valve and has the decompression function of compensation automatically, can realize the uniform motion and the accurate location of cable-styled balace weight.
Combination valve of the present invention, comprise: valve body, valve body is provided with suction port valve pocket of installing for the throttling valve core assembly and the return-air mouth valve pocket of installing for the throttling valve core assembly, the throttling valve core assembly is installed respectively in the valve pocket, the suction port valve pocket is provided with the middle suction port that communicates with suction port, return-air mouth valve pocket is provided with the middle return-air mouth that communicates with the return-air mouth, constitutes two throttle valve that are respectively applied for middle outlet pipe of control and middle return line inner high voltage air mass flow; Also be provided with one on the valve body and compensate reduction valve automatically, described automatic compensation reduction valve suction port communicates with middle air outlet, and the outlet pipe that compensates reduction valve automatically communicates with middle return-air mouth, is provided with one-way valve in the outlet pipe.
The design principle of combination valve of the present invention is: according to the working principle and the structural feature of existing throttle valve, reduction valve, to compensate reduction valve automatically and be designed to one with throttle valve dexterously, and utilize the automatic compensation reduction valve between the air inlet pipeline throttle valve and middle outlet pipe throttle valve in the middle of being arranged on to realize to the automatic decompression of middle air inlet pipeline inner high voltage air with to the automatic compensation of middle return line inner high voltage air.Earlier pressure regulating screw is adjusted to the position that makes automatic compensation reduction valve and working cylinder institute bringing onto load coupling, this moment, valve was in the half-open state that closes, high-pressure air in the middle suction port will be by middle suction port (and the manual control suction valve of forming cable-styled balace weight, accompanying drawing does not show) and compensate the middle return-air mouth of reduction valve arrival automatically, then enter working cylinder through the return-air mouth, when the pressure in the working cylinder acquires a certain degree, the cylinder action, this moment, compensation reduction valve steam outlet pipe internal check valve cut out automatically, realize the quick startup of cylinder, then control air inflow separately and change uniform motion or low-speed motion over to by middle suction port; When middle suction port stops air feed or air demand deficiency, owing to leak, cylinder is with stop motion or reversing motion, the pressure in the middle of in case the pressure in the middle return-air mouth is lower than in the air outlet, automatically compensation reduction valve steam outlet pipe internal check valve is opened, automatically compensate, thereby guarantee the easy motion of cable-styled balace weight and stop, and thoroughly avoid not having the reversing motion (pressure regulating screw of regulating reduction valve can also be realized slowly travelling forward of cylinder in such cases to certain suitable degree) of cable-styled balace weight under the situation of air feed at middle suction port.
When middle suction port stops air feed and middle return-air mouth when beginning to atmospheric exhaust, the gas that is compressed in the cylinder is discharged by return-air mouth and return-air mouth throttle valve, this action will be finished (accompanying drawing does not show) by the manual control outlet valve of forming cable-styled balace weight, the size of air displacement is regulated under the fixed situation in return-air mouth throttle flow rate, the rollback speed that will come the Control work cylinder by the openings of sizes of control manual exhaust valve; When the rollback excessive velocities, pressure in the middle of pressure in the middle return-air mouth will be lower than in the suction port, the one-way valve opens of the feasible recuperation valve of decompression automatically outlet, thus realize automatic compensation, prevent the too fast rollback motion of working cylinder, guarantee working cylinder when rollback at the uniform velocity, motion reposefully.It is to finish the defining of full admission amount and maximum air displacement that two throttle valve at suction port and return-air mouth place mainly act on, and has promptly defined advancing the soonest of working cylinder and rollback speed fully by regulating this two valve.
Combination valve design science of the present invention, rational in infrastructure, it combines throttle valve and reduction valve dexterously, integrate throttle valve and relief valve function, both had good restriction effect, has good compensation effect again, its application on pneumatic equipment can make working cylinder be in a kind of work state of equilibrium all the time, to satisfy pneumatic equipment gas circuit control requirement.This valve has also that volume is little, simple in structure, and operation and installation are easy to adjust, use advantages such as reliable and stable.It is a kind of brand new combination valve that is highly suitable for the control of pneumatic equipment pipeline air pressure.
The concrete structure of combination valve of the present invention is provided in detail by the following drawings and embodiment.
Description of drawings
Fig. 1 is the structural representation of combination valve.
Embodiment
Can be clear that from Fig. 1 the valve body 1 of combination valve is provided with suction port valve pocket of installing for the throttling valve core assembly 2 and the return-air mouth valve pocket of installing for the throttling valve core assembly 3, suction port valve pocket 2 is provided with suction port 8 and middle suction port 9, and return-air mouth valve pocket 3 is provided with return-air mouth 10 and middle return-air mouth 11; The throttling valve core assembly of installing respectively in air outlet valve pocket 2 and the return-air mouth valve pocket 3 comprises: throttling awl 4,5 and seal ring 6,7, for screw-thread fit is connected, constitute suction port throttle valve and return-air mouth throttle valve respectively between described throttling awl 4,5 and air outlet valve pocket 2 and return-air mouth 3 walls.Also be provided with one between the air outlet valve pocket 2 of valve body 1 and the return-air mouth valve pocket 3 for compensating the valve pocket 12 that the relief pressure valve cartridge assembly is installed automatically, valve pocket 12 is provided with air inlet pipeline 18 that communicates with middle air outlet 9 and the outlet pipe 22 that communicates with middle return-air mouth 11; Described automatic compensation decompression valve pocket assembly comprises: the pressure regulating screw 13 that is connected with valve pocket 12 port screw-thread fit, be arranged on the pressing spring 15 of 14 of pressure regulating screw 13 and movable push rods, be used for the butterfly RunddichtringO 16 that is sealed and matched between movable push rod 14 and valve pocket 12 walls, be used for the positioning screwn 17 that movable push rod 14 location cooperate, be arranged on the valve 19 that positioning screwn 17 belows are used to control the air-flow size of valve pocket 2 and 12 pipelines 18 of valve pocket, the pressing spring 20 of valve 19 belows, be used for the sealing gasket 21 that is sealed and matched between positioning screwn 17 and valve pocket 12 walls, set one-way valves 23 are by the steel ball 25 that is arranged on valve port 24 places in the outlet pipe 22 be used to stop that the back-up ring 26 that steel ball 25 falls forms in the outlet pipe 22 on valve pocket 12 left sides.Valve pocket 12 and each parts of installing within it constitute compensation reduction valve automatically.
Between described positioning screwn 17 and valve pocket 12 walls for being threaded.Described throttling awl 4,5 and pressure regulating screw 13 all can rely on its relation that is threaded with 1 of valve body to carry out the adjusting of air pressure.Described movable push rod 14 can move up and down in valve pocket 12.Movable push rod 14 freely slides up and down in the valve pocket 12 of valve body 1, and by 16 sealings of butterfly seal ring, by pressure regulating screw 4 can adjusting activity push rod 14 the stroke that moves up and down, thereby the size of control compensation pressurized gas realizes compensate for sensitivity, in the pressing spring 15 established have automatic regulatory function; Movable push rod 14 control valve 19 folding sizes, valve 19 is adjusted the position by pressing spring 20, pressing spring 20 relies on valve body 1 to support, when movable push rod 14 headed into downwards, valve 19 was opened, head into more more open big more, when movable push rod 14 upwards withdraws from, because the effect of pressing spring 20 turns down valve, returns to half-open semi-closure state.
The working procedure of combination valve is: earlier pressure regulating screw 13 is adjusted to the position that makes automatic compensation reduction valve and working cylinder institute bringing onto load coupling, this moment, valve 19 was in the half-open state that closes, return-air mouth 11 in the middle of high-pressure air in the middle suction port 9 will arrive by middle suction port 9 and automatic compensation reduction valve, then enter working cylinder through return-air mouth 10, when the pressure in the working cylinder acquires a certain degree, the cylinder action, this moment, compensation reduction valve outlet pipe 22 internal check valves 23 cut out (steel ball 25 stops valve port 24) automatically, realize the quick startup of cylinder, then control air inflow separately and change uniform motion or low-speed motion over to by middle suction port 9; When middle suction port 9 stops air feed or air demand deficiency, owing to leak, cylinder is with stop motion or reversing motion, the pressure in the middle of in case the pressure in the middle return-air mouth 11 is lower than in the air outlet 9, automatically compensation reduction valve outlet pipe 22 internal check valves 23 are opened (steel ball 25 breaks away from valve port 24), automatically compensate, thereby guarantee the easy motion of cable-styled balace weight and stop, and thoroughly avoid the reversing motion of cable-styled balace weight under the situation of middle suction port 9 no air feed; Regulate the pressure regulating screw 13 of reduction valve and can also realize slowly travelling forward of cylinder in such cases to certain suitable degree.
When middle suction port 9 stops air feed and middle return-air mouth 11 beginning during to atmospheric exhaust, the gas that is compressed in the cylinder is discharged by return-air mouth 10 and return-air mouth throttle valve, this action will be finished (accompanying drawing does not show) by the manual control outlet valve of forming cable-styled balace weight, the size of air displacement is regulated under the fixed situation in return-air mouth throttle flow rate, the rollback speed that will come the Control work cylinder by the openings of sizes of control manual exhaust valve; When the rollback excessive velocities, pressure in the middle of pressure in the middle return-air mouth 11 will be lower than in the suction port 9, make the one-way valve 23 on the automatic decompression recuperation valve export pipeline 22 open (steel ball 25 breaks away from valve ports 24), thereby realize compensation automatically, prevent the too fast rollback motion of working cylinder, guarantee working cylinder when rollback at the uniform velocity, motion reposefully.
Claims (5)
1, a kind of combination valve, comprise: valve body, valve body is provided with suction port valve pocket of installing for the throttling valve core assembly and the return-air mouth valve pocket of installing for the throttling valve core assembly, the throttling valve core assembly is installed respectively in the valve pocket, the suction port valve pocket is provided with the middle suction port that communicates with suction port, return-air mouth valve pocket is provided with the middle return-air mouth that communicates with the return-air mouth, constitutes two throttle valve that are respectively applied for middle outlet pipe of control and middle return line inner high voltage air mass flow; Also be provided with one on the valve body and compensate reduction valve automatically, described automatic compensation reduction valve suction port communicates with middle air outlet, and the outlet pipe that compensates reduction valve automatically communicates with middle return-air mouth, is provided with one-way valve in the outlet pipe.
2, combination valve according to claim 1 is characterized in that: the throttling valve core assembly comprises throttling awl (4), (5) and sealing snare (6), (7), and throttling is bored between (4), (5) and valve pocket (2), (3) wall to being threaded.
3, combination valve according to claim 1 and 2 is characterized in that: compensate reduction valve automatically and form by being arranged on automatic compensation decompression valve pocket (12) on the valve body (1) and the automatic compensation reduction valve assembly of installing within it.
4, combination valve according to claim 3, it is characterized in that: compensate the reduction valve assembly automatically and comprise: the pressure regulating screw (13) that is connected with automatic compensation decompression valve pocket (12) port screw-thread fit, be arranged on the pressing spring (15) between pressure regulating screw (13) and movable push rod (14), be used for the butterfly RunddichtringO (16) that is sealed and matched between movable push rod (14) and valve pocket (12) wall, be used for the positioning screwn (17) that movable push rod (14) location cooperates, be arranged on the valve (19) that positioning screwn (17) below is used to control air inlet pipeline (18) between the valve pocket (2) of compensate for sensitivity and valve pocket (12), the pressing spring (20) of valve (19) below is used for the sealing gasket (21) that is sealed and matched between positioning screwn (17) and valve pocket (12) wall.
5, combination valve according to claim 1 and 2 is characterized in that: one-way valve (23) is by being arranged on the steel ball (25) that the interior valve port of outlet pipe (22) (24) locates and being used to stop that the back-up ring (26) that steel ball (25) falls forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130179 CN1360156A (en) | 2001-12-30 | 2001-12-30 | Combination valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130179 CN1360156A (en) | 2001-12-30 | 2001-12-30 | Combination valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1360156A true CN1360156A (en) | 2002-07-24 |
Family
ID=4669803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01130179 Pending CN1360156A (en) | 2001-12-30 | 2001-12-30 | Combination valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1360156A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349148B (en) * | 2008-08-13 | 2011-11-23 | 中国海洋石油总公司 | Double-feedback fluid-control one-way throttle velocity modulation composite valve |
| CN101858368B (en) * | 2010-05-13 | 2013-06-05 | 山东泰丰液压股份有限公司 | Multiple directional control valve system for return oil throttle control with load sensitive pressure compensation |
| CN106979362A (en) * | 2017-04-21 | 2017-07-25 | 浙江亿日气动科技有限公司 | The Pneumatic reversal valve of automatic compensation air pressure |
-
2001
- 2001-12-30 CN CN 01130179 patent/CN1360156A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349148B (en) * | 2008-08-13 | 2011-11-23 | 中国海洋石油总公司 | Double-feedback fluid-control one-way throttle velocity modulation composite valve |
| CN101858368B (en) * | 2010-05-13 | 2013-06-05 | 山东泰丰液压股份有限公司 | Multiple directional control valve system for return oil throttle control with load sensitive pressure compensation |
| CN106979362A (en) * | 2017-04-21 | 2017-07-25 | 浙江亿日气动科技有限公司 | The Pneumatic reversal valve of automatic compensation air pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |