CN202194881U - Combined pneumatic-control multi-way reversing valve group - Google Patents
Combined pneumatic-control multi-way reversing valve group Download PDFInfo
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- CN202194881U CN202194881U CN2011203154713U CN201120315471U CN202194881U CN 202194881 U CN202194881 U CN 202194881U CN 2011203154713 U CN2011203154713 U CN 2011203154713U CN 201120315471 U CN201120315471 U CN 201120315471U CN 202194881 U CN202194881 U CN 202194881U
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Abstract
A combined pneumatic-control multi-way reversing valve group is composed of an oil inlet valve body (1), a large flow reversing valve body A (5), a shunting valve body (18), a small flow reversing valve body B (11) and an oil return valve body (17) which are combined into a whole in an overlying way by connecting bolts, wherein the oil inlet valve body is provided with an oil inlet P, a main safety valve (4) is arranged in the oil inlet valve body, and hydraulic oil enters from an oil inlet valve P to provide oil sources for the large flow reversing valve body A (5) and the shunting valve body (18); the shunting valve body (18) is a single-way stable flow divider, the hydraulic oil shunts according to a set flow after passing through the flow divider so as to provide stable oil sources for the small flow reversing valve body B (11), and the redundant hydraulic oil flows back to an oil tank through an oil return opening T arranged on the flow divider; and an inserted type safety valve (25) is arranged on the shunting valve body for adjusting and controlling the pressure of the low flow hydraulic oil being shunted. The valve group effectively solve the problems of a multifunction special vehicle of the large energy lost and abnormal heating of a hydraulic system when adopting a single pump to supply oil as well as high cost, complex oil way, complicated installation, inconvenient maintenance, etc. when adopting a multi-connecting pump; and the valve group can be widely applied to the hydraulic system of the multifunction special vehicle and the hydraulic system of projects and mines to perform difference control of the flow and the pressure required by an actuating mechanism.
Description
Technical field
The utility model belongs to the hydrovalve technology.
Background technique
It is to realize the functional inevitable choice of special car that hydraulics is applied in the special car, and also to be that special car better embodies functional, the important channel of practicability, convenience.Special purpose vehicle is divided into logistics transportation special car and Engineering special use usually
Car.The application of hydraulics is seen everywhere on logistics transportation special car, has all used hydraulics in the systems such as driver's cab turnover, semitrailer traction seat height and angular adjustment function, vehicle bridge lifting, vehicle frame self-level(l)ing, compartment tail ladder, tailgate folding and unfolding; The application of hydraulics is just more extensive in the Engineering special car.Special cars such as traditional dumping car, self-loading type dumping car, truck-mounted crane, powder material truck, oil field unloading vehicle, power plant's cinder car, bulk grain car, road sweeper, snowslinger, rocking arm type refuse collection vehicle, compression type garbage truck, road obstacle clearing vehicle, high-altitude operation vehicle, hydraulics has played the functionalization central role therein.
In the special car of simple function, required hydraulic system is fairly simple, and general hydraulic parts generally can both satisfy usage requirement.Only require the compartment lifting to dump goods such as traditional dumping car; Its hydraulic lifting system is made up of hydraulic element such as a lifting pump, lifting valve, lifting cylinder, limited valves usually; The lifting pump delivery is by the required flow decision of lifting cylinder, and the Maximum operating pressure of hydraulic system is by the safety valve setting on the lifting valve.Whole hydraulic system oil circuit is simple, easy arrangement.In multi-functional special car; Adopt general hydraulic parts to constitute hydraulic system, its oil circuit is arranged relatively difficulty with regard to more complicated on vehicle; More such as its function action of compression type garbage truck; Pour rubbish in the compartment envelope into after the refuse container that rubbish will be housed with mechanism is lifted to certain altitude, another mechanism scrapes rubbish in the storage railway carriage or compartment and compresses, and is provided with executive components such as elevating ram, skateboard tank, scraper plate oil cylinder, push pedal oil cylinder in this hydraulic system; The specification parameter of these oil cylinders is different; The flow that required hydraulic system provides is also inequality, and in order to solve the problem of the required differentiation flow of oil cylinder, a lot of manufacturing enterprises adopt following two kinds of methods to solve: first method is that working pump adopts duplex pump; Control valve adopts the multiple directional control valve of two different sizes, and the pressure oil of the front pump of big discharge capacity output is through the oil cylinders such as multi-way valve control push pedal of big specification in the duplex pump; The pressure oil of the back pump output of the medium and small discharge capacity of duplex pump is through the oil cylinders such as multi-way valve control scraper plate of small dimension, and this method hydraulic element purchase cost is higher, and oil circuit is complicated, and energy loss is bigger, and its schematic diagram is seen Fig. 1; Second method is that working pump is taked single pump; The work pump delivery is confirmed by the required flow of big specification oil cylinder; Control valve adopts a multiple directional control valve to control different oil cylinders; The pressure oil flow that throttle valve (one-way throttle valve) control gets into oil cylinder is installed in the pipeline of multi-way valve and oil cylinder, is reached the purpose of differentiation flow control.This method hydraulic element purchase cost is lower, but energy loss is very big, becomes small flow fuel feeding cylinder working after the throttling of high-volume hydraulic oil process throttle valve, can satisfy the smooth working of the oil cylinder institution where he works.But hydraulic oil can convert heat energy flows into hydraulic system with hydraulic oil each link to through a large amount of hydraulic pressure behind the throttle valve; Cause the hydraulic system abnormal heating; Quicken the Sealing aged in the hydraulic element, reduce the working life of hydraulic parts, its schematic diagram is seen Fig. 2.
Along with the development of special car functional diversities, the narrow limitation that general hydraulic parts uses in the special car hydraulic system will be more and more outstanding.
Hydraulics is inseparable with the development of special purpose vehicle, and hydraulics must be integrated with technology through continuous technological progress, and combines with automatic control technology, could constantly satisfy the growth requirement of the present and the future's special purpose vehicle.The developing direction of special purpose vehicle hydraulics should be high efficiency, low energy consumption, more environmental protection, more reliable from now on.Mechanical energy converts the hydraulic pressure ability in hydraulics; Hydraulic pressure can convert in the process of mechanical energy and all have the energy loss problem; Adopt modern accurate manufacturing technology, improve the accuracy of manufacturing of hydraulic parts, can effectively reduce the internal leakage and the pressure loss of hydraulic parts; Thereby the minimizing power loss improves the reliability of hydraulic parts simultaneously; The integrated design of hydraulic element can make the reduced distances between the element, reduces the length of runner, reduces pressure loss in piping; Hydraulic system avoids adopting throttling method to regulate energy, can reduce and eliminate the restriction loss of hydraulic system and the spill losses of non-security needs; The result that high efficiency, low energy consumption bring is exactly more environmental protection.
Summary of the invention
The purpose of the utility model is to propose a kind of concentrated output of diversity flux, pressure and multiple directional control valve of control realized to the deficiency of existing technology existence.
The technological scheme of the utility model is following:
A kind of combination gas control multiple directional control valve group, it is one by oil-feed valve body (1), high flow directional control valve body A (5), shunting valve body (18), small flow switching-over valve B (11) and oil return valve body (17) through the connecting bolt stack combinations; It is characterized in that:
Said oil-feed valve body is provided with oil inlet P, built-in main safety valve (4), and hydraulic oil gets into the back by oiling valve P mouth and to high flow directional control valve body A (5) and shunting valve body (18) oil sources is provided;
Said shunting valve body (18) is stablized diverter valve for single channel, is made up of flow divider valve core (20), shunting spring (22), limited post A (19), limited post (23), cover plate (24), diverter valve safety valve (25) etc.; Hydraulic oil is through flow is shunted and to small flow switching-over valve B (11) stable oil sources is provided by setting behind the diverter valve, and the oil return inlet T that unnecessary hydraulic oil is provided with on diverter valve flows back to fuel tank; Shunting is designed with plug-in type diverter valve safety valve (25) on the valve body, is used to regulate and control the small flow hydraulic fluid pressure after the shunting.
Said big flow reversing control valve constitutes the 3-position 4-way structure by switching-over valve A (5) with guiding valve A (6); Guiding valve A (6) is connected with piston A (10) again and connects to form the gas control commutation controlling mechanism with cylinder block A (9), and the other end and Returnning spring A (7) and spring cup A (8) connect to form resetting-mechanism.
Said small flow reversing control valve constitutes the 3-position 4-way structure by selector valve B (11) and guiding valve B (12); Guiding valve B (12) is connected with piston B (16) again and connects to form the gas control commutation controlling mechanism with cylinder block B (15), and the other end and Returnning spring B (13) and spring cup B (14) connect to form resetting-mechanism.
The advantage of the utility model is following:
Problem and shortage such as the energy loss that the utility model exists when adopting general hydraulic parts to solve the required flow of actuator, pressure difference alienation control to current multi-functional heavily loaded special car hydraulic system is big, line arrangement very complicated, installation and maintenance inconvenience; Adopt the know-why of diverter valve to solve actuator's required difference in flow alienation problem, substitute throttle valve adjustment flow size with diverter valve and solve the energy loss problem.(working principle of diverter valve is utilize to get into the pressure oil of diverter valve through forming pressure difference at the spool two ends behind the spool damping hole, promotes spool and overcomes spring force and move and regulate shunting oil duct openings of sizes.When the pressure oil flow that gets into diverter valve increases; The pressure difference that pressure oil forms at the spool two ends is along with increase; The shunting oil duct opening that promotes after spool moves also increases, and the flow of increase is flowed out from the shunting oil duct, and invariable through the pressure oil of spool damping hole.Diverter valve is usually used in the engineering machinery hydraulic steering system; Guaranteeing that the required regime flow of hydraulic steering gear does not change with the oil hydraulic pump output flow) multiple directional control valve and diverter valve carry out integrated design; The pipeline that reduces between the hydraulic element connects; Reduce pressure loss in piping, make the installation of hydraulic system simple and direct, maintaining is easy.Multiple directional control valve and diverter valve adopt slice structure; Can confirm the couplet number of multiple directional control valve according to the needs of actuator; Be designed with the diverter valve safety valve of plug-in type on selector valve and the diverter valve valve body; Be used to regulate the required pressure of execution architecture, selector valve and diverter valve are carried out different combinations, reach actuator's flow, pressure gap to the purpose of controlling.
The successful development of this product has effectively solved multi-functional special car and has adopted that single oil pump feed energy loss is big, hydraulic system is different
Normal heating problem with adopt that the multiplex pump cost is high, oil circuit is complicated, installations is loaded down with trivial details, safeguard problem such as inconvenience, can be widely used in the multi-functional special car hydraulic system and engineering, mine hydraulic system in the required flow of actuator, pressure are carried out difference to control.Product design figure sees Fig. 5.
Description of drawings
Fig. 1 is the schematic diagram of the multiple directional control valve that adopts of present first kind of mode;
Fig. 2 is the schematic diagram of the multiple directional control valve of present second way employing;
Fig. 3 is the structural representation of the utility model;
Fig. 4 is the schematic diagram of the utility model;
Fig. 5 is the outline drawing of the utility model.
Among the figure: 1-oil-feed valve body, 2-nonreturn valve core, 3-main valve plug, 4-main safety valve 5-commutation valve body A6-guiding valve A7-back-moving spring A8-spring cup A9-cylinder block A10-piston A11-commutation valve body B12-guiding valve B13-back-moving spring B14-spring cup B15-cylinder block B16-piston B17-oil return valve body 18-shunting valve body 19-limited post A20-flow divider valve core 21-damping hole 22-flow divider spring 23-limited post B24-cover plate 25-flow divider group safety valve.
Embodiment
Further specify the structure and the working method of valve below in conjunction with accompanying drawing:
Referring to Fig. 2, this selector valve group is one by oil-feed valve body (1), high flow directional control valve body A (5), shunting valve body (18), small flow switching-over valve B (11) and oil return valve body (17) through the connecting bolt stack combinations.Wherein, the oil-feed valve body is provided with oil inlet P, built-in main safety valve (4), and hydraulic oil gets into the back by oiling valve P mouth and to high flow directional control valve body A (5) and shunting valve body (18) oil sources is provided; Shunting valve body (18) is stablized diverter valve for single channel, and hydraulic oil is through flow is shunted and to small flow switching-over valve B (11) stable oil sources is provided by setting behind the diverter valve, and the oil return inlet T that unnecessary hydraulic oil is provided with on diverter valve flows back to fuel tank.Shunt valve is designed with diverter valve cartridge valve (25) for regulating the triage of small flow of hydraulic oil pressure.
Big flow reversing control valve constitutes the 3-position 4-way structure by switching-over valve A (5) with guiding valve A (6); Guiding valve A (6) is connected with piston A (10) again and connects to form the gas control commutation controlling mechanism with cylinder block A (9), and the other end and Returnning spring A (7) and spring cup A (8) connect to form resetting-mechanism.Shunting valve body (18) is made up of flow divider valve core (20), shunting spring (22), limited post A (19), limited post (23), cover plate (24), diverter valve safety valve (25) etc.The small flow reversing control valve constitutes the 3-position 4-way structure by selector valve B (11) and guiding valve B (12); Guiding valve B (12) is connected with piston B (16) again and connects to form the gas control commutation controlling mechanism with cylinder block B (15), and the other end and Returnning spring B (13) and spring cup B (14) connect to form resetting-mechanism.
Working principle of the present invention is seen Fig. 4, and selector valve group system pressure oil is by the oil-feed of oil-feed valve body (1) P mouth (each hydraulic fluid port sign is seen Fig. 5), diverter valve (18) top oil return inlet T oil return.When the selector valve group mediated, pressure oil flows back to fuel tank through leakage passage L opened and off-load main valve plug.
When gas control commutation controlling mechanism K1 (or K2) on the switching-over valve A (5) of selector valve group and pressurized air connection work; Guiding valve A (6) upwards (or downwards) moves; Pressure oil through leakage passage L is cut off by main valve plug (3), and pressure oil is promptly realized P → A1 (or P → B1) through nonreturn valve core (2) oil-feed to actuator port A1 (or B1) fuel feeding.
When gas control commutation controlling mechanism K5 (or K6) on the switching-over valve B (11) of selector valve group and pressurized air connection work; Guiding valve B (12) upwards (or downwards) moves; Pressure oil through leakage passage L is cut off by main valve plug (3); Pressure oil forms pressure difference by its two ends, damping hole (21) back that runner P1 mouth gets into flow divider valve core (20); Stressed its openings of sizes that moves down the spring force adjusting current stabilization oil duct CF that overcomes diverter valve spring (22) that makes in flow divider valve core (20) upper end, when the pressure oil flow that gets into flow divider valve core (20) increased, the pressure difference that pressure oil forms at the spool two ends was along with increase; The opening that promotes the shunting oil duct EF after spool moves also increases; The flow that makes increase flows out from shunting oil duct EF, and invariable through the pressure oil of flow divider valve core damping hole (21), and it is P → A3 (or P → B3) that constant small flow pressure oil exports actuator port A3 (or B3) to through current stabilization oil duct CF.Realize that actuator's flow, pressure gap are to the function of controlling.
Claims (1)
1. one kind is made up gas control multiple directional control valve group, and it is one by oil-feed valve body (1), high flow directional control valve body A (5), shunting valve body (18), small flow switching-over valve B (11) and oil return valve body (17) through the connecting bolt stack combinations; It is characterized in that:
Said oil-feed valve body is provided with oil inlet P, built-in main safety valve (4), and hydraulic oil gets into the back by oiling valve P mouth and to high flow directional control valve body A (5) and shunting valve body (18) oil sources is provided;
Said shunting valve body (18) is stablized diverter valve for single channel, is made up of flow divider valve core (20), shunting spring (22), limited post A (19), limited post (23), cover plate (24), diverter valve safety valve (25) etc.; Hydraulic oil is through flow is shunted and to small flow switching-over valve B (11) stable oil sources is provided by setting behind the diverter valve, and the oil return inlet T that unnecessary hydraulic oil is provided with on diverter valve flows back to fuel tank; Shunting is designed with plug-in type diverter valve safety valve (25) on the valve body, is used to regulate and control the small flow hydraulic fluid pressure after the shunting;
Said big flow reversing control valve constitutes the 3-position 4-way structure by switching-over valve A (5) with guiding valve A (6); Guiding valve A (6) is connected with piston A (10) again and connects to form the gas control commutation controlling mechanism with cylinder block A (9), and the other end and Returnning spring A (7) and spring cup A (8) connect to form resetting-mechanism;
Said small flow reversing control valve constitutes the 3-position 4-way structure by selector valve B (11) and guiding valve B (12); Guiding valve B (12) is connected with piston B (16) again and connects to form the gas control commutation controlling mechanism with cylinder block B (15), and the other end and Returnning spring B (13) and spring cup B (14) connect to form resetting-mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203154713U CN202194881U (en) | 2011-08-26 | 2011-08-26 | Combined pneumatic-control multi-way reversing valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203154713U CN202194881U (en) | 2011-08-26 | 2011-08-26 | Combined pneumatic-control multi-way reversing valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194881U true CN202194881U (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203154713U Expired - Fee Related CN202194881U (en) | 2011-08-26 | 2011-08-26 | Combined pneumatic-control multi-way reversing valve group |
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| CN (1) | CN202194881U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982479A (en) * | 2013-12-17 | 2014-08-13 | 焦让 | Plug-in type pneumatic high-speed differential switch valve |
| CN104454727A (en) * | 2014-12-01 | 2015-03-25 | 山西北方机械制造有限责任公司 | Method for changing non-bridge-crossing-channel type valve to bridge-crossing-channel type valve |
| CN105757026A (en) * | 2016-04-22 | 2016-07-13 | 青神格林维尔流体动力控制技术有限公司 | Hydraulic system controlling rise and fall of automobile tailboard |
| CN109915628A (en) * | 2019-03-07 | 2019-06-21 | 深圳市华腾精密机械有限公司 | The integrated inserting valve group in water route and vulcanization mechanomotive force water system |
| CN114517801A (en) * | 2021-12-28 | 2022-05-20 | 江苏天佑液压科技有限公司 | Angle-adjustable multi-way reversing valve |
-
2011
- 2011-08-26 CN CN2011203154713U patent/CN202194881U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982479A (en) * | 2013-12-17 | 2014-08-13 | 焦让 | Plug-in type pneumatic high-speed differential switch valve |
| CN103982479B (en) * | 2013-12-17 | 2016-06-22 | 焦让 | A kind of plug-in Pneumatic high-speed differential switch valve |
| CN104454727A (en) * | 2014-12-01 | 2015-03-25 | 山西北方机械制造有限责任公司 | Method for changing non-bridge-crossing-channel type valve to bridge-crossing-channel type valve |
| CN105757026A (en) * | 2016-04-22 | 2016-07-13 | 青神格林维尔流体动力控制技术有限公司 | Hydraulic system controlling rise and fall of automobile tailboard |
| CN109915628A (en) * | 2019-03-07 | 2019-06-21 | 深圳市华腾精密机械有限公司 | The integrated inserting valve group in water route and vulcanization mechanomotive force water system |
| CN114517801A (en) * | 2021-12-28 | 2022-05-20 | 江苏天佑液压科技有限公司 | Angle-adjustable multi-way reversing valve |
| CN114517801B (en) * | 2021-12-28 | 2022-11-22 | 江苏天佑液压科技有限公司 | Angle-adjustable multi-way reversing 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: 20120418 Termination date: 20140826 |
|
| EXPY | Termination of patent right or utility model |