CN103486291B - A kind of hand behaviour control valve - Google Patents
A kind of hand behaviour control valve Download PDFInfo
- Publication number
- CN103486291B CN103486291B CN201310401456.4A CN201310401456A CN103486291B CN 103486291 B CN103486291 B CN 103486291B CN 201310401456 A CN201310401456 A CN 201310401456A CN 103486291 B CN103486291 B CN 103486291B
- Authority
- CN
- China
- Prior art keywords
- pilot valve
- control valve
- valve
- drain pan
- main control
- 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
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
-
- 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
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of hand behaviour control valve, belong to field of hydraulic control.Described hand behaviour control valve, comprise main control valve and pilot valve, cavity is provided with in spool, slide in cavity and be provided with pilot valve, pilot valve is provided with the second drain pan, the spool two ends of main control valve arrange the first drain pan respectively, one end of first drain pan is communicated with main control valve hydraulic fluid port, when pilot valve is in initial position, two main control valve hydraulic fluid ports are communicated with two pilot valve hydraulic fluid ports respectively, the other end of the first drain pan is by the closed front of pilot valve, when pilot valve moves to ultimate range to side, be communicated with the second drain pan with the other end of the first drain pan of pilot valve moving direction homonymy, the other end of described first drain pan of tossing about with described pilot valve moving direction is by the closed front of described pilot valve, pilot valve is provided with the through hole be communicated with main control valve return opening with the second drain pan respectively.Hand behaviour control valve provided by the invention adds pilot valve structure, can realize the manipulation of staff, without the need to changing whole main control valve or installing decompressor additional.
Description
Technical field
The present invention relates to field of hydraulic control, particularly a kind of hand behaviour control valve.
Background technique
Hand behaviour control valve, as the control unit of hydraulic system, requires that it controls accurately, compact structure and simple to operate usually.
At present, generally grasp by hand control and hand the handle that the crank mechanism of control valve inside or shifting fork mechanism be connected, directly overcome the hydraulic power in the valve core movement process of hand behaviour's control valve frictional force in the course of the work, clamping force, spring restoring force and hand behaviour control valve with manpower, and then realize the Non-follow control of hand behaviour control valve.When the main body parameter (as flow and pressure etc.) of hydraulic system requires less, the spool size of hand behaviour control valve is less, making a concerted effort of the frictional force of valve member, clamping force, spring restoring force and hydraulic power is relative also less, and the strength of the hand of people can overcome, and realizes hand behaviour.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Along with improving constantly of hydraulic system main body parameter, the physical dimension of hand behaviour control valve also constantly strengthens, reposition force and the hydraulic power of the frictional force produced during its work, clamping force, spring all significantly improve, now, staff direct manipulation hand behaviour control valve, just needs to use very large steering force, if will reduce this steering force, just need very huge effort-saving mechanism, so can not meet again hand behaviour control valve to the requirement of compactedness.Therefore, with the increase setting about the physical dimension manipulating valve processed, conventional hand manipulation valve arrangement processed be difficult to meet steering force little while compact structure again requirement.
Summary of the invention
Compactedness and the little problem of steering force can not be met in order to solve the behaviour of hand in prior art control valve simultaneously, embodiments providing a kind of hand behaviour control valve.Described technological scheme is as follows:
The invention provides a kind of hand behaviour control valve, comprise main control valve and operating grip, described main control valve comprises: housing, protecgulum, bonnet and the spool be arranged in described housing that slides, the rear and front end of described spool forms two main control valve hydraulic fluid ports with described protecgulum and described bonnet respectively, it is characterized in that, cavity is provided with in described spool, slide in described cavity and be provided with pilot valve, described pilot valve and described operating grip are in transmission connection, described pilot valve is provided with the second drain pan, the spool two ends of described main control valve arrange the first drain pan respectively, one end of described first drain pan is communicated with described main control valve hydraulic fluid port, when described pilot valve is in initial position, two described main control valve hydraulic fluid ports respectively pilot valve hydraulic fluid port described with two are communicated with, the other end of described first drain pan is by the closed front of described pilot valve, when described pilot valve moves to ultimate range to side, be communicated with described second drain pan with the other end of described first drain pan of described pilot valve moving direction homonymy, the other end of described first drain pan of tossing about with described pilot valve moving direction is by the closed front of described pilot valve, described pilot valve is provided with the through hole be communicated with main control valve return opening with described second drain pan respectively.
Alternatively, the minimum range of the notch of described first drain pan and the notch of described second drain pan is X
1, the minimum range of the spool of the hydraulic fluid port of described pilot valve and the described main control valve of homonymy is X
0, and X
0> X
1.
Alternatively, when described spool is positioned at initial position, the cross sectional area equal and opposite in direction of two described main control valve hydraulic fluid ports and corresponding described pilot valve hydraulic fluid port connectivity part.
Alternatively, be provided with for the automatically reset valve core reseting spring assembly of described spool between described protecgulum and described spool, one end of described valve core reseting spring assembly band spring is fixedly mounted on the end face of described spool, and the described valve core reseting spring assembly the other end is actively plugged in described protecgulum.
Alternatively, described valve core reseting spring assembly is two.
Alternatively, be provided with for the automatically reset pilot valve return spring assembly of described pilot valve between described protecgulum and described pilot valve, one end of described pilot valve return spring assembly band spring is fixedly mounted in described pilot valve, and the described pilot valve return spring assembly the other end is actively plugged in described protecgulum.
Alternatively, described protecgulum is provided with the first Remote mouth, the front end of described pilot valve is positioned at described first Remote mouth, described bonnet is provided with the second Remote mouth, and the rear end of described pilot valve is positioned at described second Remote mouth.
Alternatively, described first drain pan is L-type.
Alternatively, described second drain pan is arranged on the outer surface of described pilot valve.
Alternatively, described pilot valve and described operating grip are in transmission connection by transmitting assemblies, described transmitting assemblies comprises thrust link, connecting rod and crank, one end of described thrust link is inserted in described pilot valve, the other end of described thrust link through the interlayer of described bonnet and one end of described connecting rod hinged, the other end of described connecting rod and one end of described crank hinged, the other end of described crank and the connecting end of described operating grip hinged.
The beneficial effect that the technological scheme that the embodiment of the present invention provides is brought is: hand behaviour control valve provided by the invention by adding pilot valve structure in the hollow cavity of main control valve, high pressure oil is incorporated into the two ends of main control valve, force balance, the high pressure oil at main control valve two ends is sent back to low pressure port T again by pilot valve, thus the controlled movement realizing main control valve is in pilot valve, because pilot valve structure is little stressed little, handle simple, therefore hand behaviour control valve provided by the invention meet steering force little while compact structure again requirement.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is hand manipulation valve processed that the embodiment of the present invention provides structural representation when being positioned at initial position;
Fig. 2 is hand manipulation valve processed that the embodiment of the present invention provides structural representation when being positioned at positive operation;
Fig. 3 is hand manipulation valve processed that the embodiment of the present invention provides structural representation when being positioned at reverse operating.
In figure: 1-main control valve, the spool of 101-main control valve, 2-pilot valve, 3-protecgulum, 4-bonnet, 5-first drain pan, 6-second drain pan, 7-through hole, 8-valve core reseting spring assembly, 9-pilot valve return spring assembly, 10-thrust link, 11-connecting rod, 12-crank, 13-operating grip, 14-one-way valve, 15-throttle valve, 16-pilot valve stop collar, 17-housing, X-first Remote mouth, Y-second Remote mouth, P-system filler opening, P1-main control valve hydraulic fluid port, P2-pilot valve hydraulic fluid port, T-main control valve return opening.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
The embodiment of the present invention provides a kind of hand to grasp control valve, as Fig. 1, shown in Fig. 2 and Fig. 3, this hand behaviour control valve comprises main control valve 1 and operating grip 13, main control valve 1 comprises: housing 17, protecgulum 3, bonnet 4 and the spool 101 be arranged in housing 17 that slides, the rear and front end of spool 101 forms two main control valve hydraulic fluid port P1 respectively with protecgulum 3 and bonnet 4, cavity is provided with in spool 101, slide in this cavity and be provided with pilot valve 2, pilot valve 2 and operating grip 13 are in transmission connection, pilot valve 2 is provided with the second drain pan 6, the two ends of spool 101 are respectively arranged with the first drain pan 5, one end of first drain pan 5 is communicated with main control valve hydraulic fluid port P1, when pilot valve 2 is in initial position, two main control valve hydraulic fluid port P1 are communicated with two pilot valve hydraulic fluid port P2 of pilot valve 2 respectively, wherein, pilot valve hydraulic fluid port P2 is by determining the position that pilot valve 2 moves, determine that pilot valve hydraulic fluid port P2 is for being communicated with or closing again, the other end of the first drain pan 5 is by the closed front of pilot valve 2, when pilot valve 2 moves to ultimate range to side, be communicated with the second drain pan 6 with the other end of the first drain pan 5 of pilot valve 2 moving direction homonymy, the other end of first drain pan 5 of tossing about with pilot valve 2 moving direction is by the closed front of pilot valve 2, pilot valve 2 is provided with the through hole 7 passing through with the second drain pan 6 and main control valve oil return inlet T to be respectively communicated with, wherein through hole 7 can realize being communicated with by connecting pipeline with main control valve oil return inlet T, mode of communicating also should not be only limitted to pipeline connection herein.In addition, the initial position of pilot valve 2 refers to: position during pilot valve hydraulic fluid port P2 non-oil-feed residing for pilot valve 2.
Preferably, this first drain pan 5 is four, and the second drain pan 6 is two simultaneously.In addition, this second drain pan 6 also can be one, and this second drain pan 6 is along the outer wall circumference of pilot valve 2, and meanwhile, the first drain pan 5 can be arranged symmetrically with on the spool 101 of main control valve 1.
Alternatively, as shown in Figure 2, the minimum range of the first drain pan 5 and the second drain pan 6 is X
1, the minimum range of the main control valve hydraulic fluid port P1 of pilot valve hydraulic fluid port P2 and homonymy is X
0, and X
0> X
1.Only have and work as X
0> X
1during valve port, the first drain pan 5 just may be linked up with the second drain pan 6, and the spool 101 of main control valve 1 is moved with pilot valve 2.
Alternatively, when spool 101 is positioned at initial position, two main control valve hydraulic fluid port P1 are equal with the cross sectional area of corresponding pilot valve hydraulic fluid port P2 connectivity part.Wherein, the neutral position during oil-feed non-for main control valve hydraulic fluid port P1 of the initial position of spool 101 residing for spool 101, operating grip 13 now is also positioned at neutral position.
Alternatively, be provided with for the automatically reset valve core reseting spring assembly 8 of spool 101 between protecgulum 3 and spool 101, valve core reseting spring assembly 8 one end with spring is fixedly mounted on the end face of spool 101, and valve core reseting spring assembly 8 the other end is actively plugged in protecgulum 3.
Alternatively, valve core reseting spring assembly 8 is two.Valve core reseting spring assembly 8 can guarantee that spool 101 also gets back to initial position automatically exactly.
Alternatively, be provided with for the automatically reset pilot valve return spring assembly 9 of pilot valve 2 between protecgulum 3 and pilot valve 2, pilot valve return spring assembly 9 one end with spring is fixedly mounted in pilot valve 2, and pilot valve return spring assembly 9 the other end is actively plugged in protecgulum 3.
Alternatively, protecgulum 3 is provided with the first Remote mouth X, the front end of pilot valve 2 is positioned at the first Remote mouth X, bonnet 4 is provided with the second Remote mouth Y, and the rear end of pilot valve 2 is positioned at the second Remote mouth Y.First Remote mouth X and the second Remote mouth Y and pilot valve 2 are all tightly connected, first Remote mouth X, when not using remote control, can be communicated with the second Remote mouth Y or take back fuel tank separately respectively by the first Remote mouth X and the second Remote mouth Y; When needs Remote controls, this Remote interface access remote control hydraulic system just can be realized the manually-operable that long-range hydraulic control replaces machine other.
Alternatively, the first drain pan 5 is L-type.
Alternatively, the second drain pan 6 is arranged on the outer surface of pilot valve 2.
Alternatively, pilot valve 2 and operating grip 13 are in transmission connection by transmitting assemblies, transmitting assemblies comprises thrust link 10, connecting rod 11 and crank 12, one end of thrust link 10 is inserted in pilot valve 2, the other end of thrust link 10 through the interlayer of bonnet 4 and one end of connecting rod 11 hinged, the other end of connecting rod 11 and one end of crank 12 hinged, the other end of crank 12 and the connecting end of operating grip 13 hinged.In addition, connecting rod 11, crank 12 and operating grip 13 are positioned at main control valve oil return inlet T.
Alternatively, the surface of contact of pilot valve 2 and the second Remote mouth Y is provided with pilot valve stop collar 16.
The control valve of being grasped by hand that the embodiment of the present invention provides is connected in pressure duct, and its working principle is as follows:
As shown in Figure 2, two main control valve hydraulic fluid port P1 are communicated with pressure duct respectively, the positive operation of hand behaviour control valve, pilot valve 2 is driven to move to the left operating grip 13, now first drain pan 5 in left side is communicated with the second drain pan 6, first drain pan 5 on right side is by the closed front of pilot valve 2, high pressure oil in main control valve hydraulic fluid port P1 so flows through the first drain pan 5 successively, second drain pan 6 and through hole 7 enter in the main control valve oil return inlet T of low pressure, thus spool 101 stress balance is broken, make spool 101 with pilot valve 2 to left movement, achieving manipulation pilot valve 2 drives spool 101 to the object of left movement.
As shown in Figure 3, the reverse operating of hand behaviour control valve, pilot valve 2 is driven to move to the right operating grip 13, now first drain pan 5 on right side is communicated with the second drain pan 6, first drain pan 5 in left side is by the closed front of pilot valve 2, high pressure oil in pressure duct flows into the pilot valve hydraulic fluid port P2 on the right side of pilot valve 2 by the main control valve hydraulic fluid port P1 on right side, high pressure oil in main control valve hydraulic fluid port P1 so flows through the first drain pan 5 successively, second drain pan 6 and through hole 7 enter in the main control valve oil return inlet T of low pressure, thus spool 101 stress balance is broken, the spool 101 of main control valve 1 is moved right with pilot valve 2, achieve and handle the object of spool 101 to left movement that pilot valve 2 drives main control valve 1.
When pilot valve 2 moves to certain position, now, the steering force of people no longer applies, due to, the existence of pilot valve return spring assembly 9, pilot valve 2 meeting positive return, the spool 101 that equally also can order about main control valve 1 moves and resets.If spool 101 movement travel of main control valve 1 exceedes pilot valve 2, stressed meeting again balances or hinders it to travel forward further, make the spool 101 of main control valve 1 must according to the movement position equilibrium establishment position of pilot valve 2, now, if pilot valve 2 is when no longer moving in a certain position, the spool 101 of main control valve 1 will follow its corresponding position of moving, and under the effect of high pressure oil rebalancing ensure that two main control valve hydraulic fluid port P1 are not all communicated with main control valve oil return inlet T.For ensureing that the spool 101 of main control valve 1 also can automatically return to initial position, avoids initial start-up misoperation, and in addition, main valve Returnning spring group 8 also can guarantee that main control valve 1 automatically returns to initial position under illogical high pressure oil condition.First Remote mouth X, when not using remote control, can be communicated with the second Remote mouth Y or take back fuel tank alone respectively by the first Remote mouth X and the second Remote mouth Y; When needs Remote controls, this Remote interface X, Y are accessed remote control hydraulic system and just can realize the other manually-operable of long-range hydraulic control replacement machine.
Hand behaviour's control valve application in practice that the embodiment of the present invention provides:
The specified through-current capability of main control valve 1 is 6000L/min, maximum delivery pressure 8Mpa, and the range of main control valve 1 is 60mm, the end face diameter of the spool 101 of main control valve 1 is 250mm, flow velocity ν=5.7m/s, spool 101 is conducted oneself with dignity 160KG, and the meta of main control valve 1 is H type Median Function.
Particularly, the stressed F of main control valve 1
mainbe made up of following components:
F
main=F
reset+ F
clamping force+ F
hydraulic power+ F
frictional force
F
reset---the return spring force of main control valve 1, is specially 3000N;
F
clamping force---the oil pressure caused because of the valve body of main control valve 1 and the foozle (circularity and straightness error) of valve opening (this valve opening makes a general reference the hole that main control valve 1 is offered) clamps, cannot directly calculate, in the computational methods that related domain is conventional, estimate by 10% of spring restoring force, actual value is here 300N;
F
hydraulic power---mainly refer to the steady-state fluid force of the spool 101 of main control valve 1.
F
frictional force---when the spool 101 of main control valve 1 moves, the surface friction drag of the valve body of main control valve 1 and valve opening (because the surface roughness of valve opening and spool 101 Action of Gravity Field of main control valve 1 produce).
Substitute into formula: F
hydraulic power=ρ q ν cos α, wherein:
The density of ρ---high pressure oil is 800kg/m here
3;
Q---flowing through the flow of the valve port of main control valve 1, is 6000L/min here;
ν---flow velocity, gets ν=5.7m/s here;
The valve port efflux angle of α---main control valve 1, generally gets α=69 °;
By calculating:
F
hydraulic power=163N
F
frictional force=μm g
Spool 101 and the friction factor of housing 17 of μ---main control valve 1, get 0.3 here;
The spool 101 of m---main control valve 1 is conducted oneself with dignity, and is 160KG here;
Substitution calculates: F
frictional force=470N
Stress balance according to motion obtains:
The end face diameter of the spool 101 of d---main control valve 1 is 250mm here;
Δ p---drive main control valve 1 motion to need the pressure difference value produced by draining;
Substitution calculates: Δ p=0.08MPa.
In actual use, because high pressure oil all will by the throttling of main control valve 1, then will inevitably produce certain pressure loss could flow out, usually this pressure loss value is at 0.3-0.5Mpa, and when there is load in main control valve 1, this pressure loss value can considerably beyond 0.3-0.5Mpa, therefore, needs fully to meet main control valve 1 in actual use and to move required pressure reduction.
The same main valve of force analysis of pilot valve 2:
F
main=f
reset+ f
clamping force+ f
hydraulic power+ f
frictional force
Because pilot valve 2 does not have high pressure oil effect substantially, therefore hydraulic power can not be considered, the maximum reset power of pilot valve return spring assembly 9 is 500N here, and the weight of pilot valve 2 is 30kg, and substituting into calculating has: f
main=638N, assuming that the velocity ratio of crank mechanism is definite value, from above-mentioned calculating, the steering force not adopting the hand control valve of pilot valve 2 to need is 6.2 times of the hand control valve adopting pilot valve 2, i.e. F
main/ f
main≈ 6.2.As can be seen here, hand provided by the invention behaviour control valve is adopted significantly can to reduce the size of steering force.
The hand behaviour control valve that the embodiment of the present invention provides by adding pilot valve structure in the hollow cavity of main control valve, high pressure oil is incorporated into the two ends of main control valve, force balance, the high pressure oil at main control valve two ends is sent back to low pressure port again by pilot valve, thus the controlled movement realizing main control valve is in pilot valve, because pilot valve structure is little stressed little, handle simple, therefore hand provided by the invention behaviour control valve meet steering force little while compact structure again requirement, simultaneously, the manipulation that pilot valve can realize staff is installed additional at existing main control valve, without the need to changing whole main control valve or installing decompressor additional, the hand behaviour control valve that the embodiment of the present invention provides, if the spool size of main control valve increases a lot, the operating mechanism of its main control valve still can meet the requirement of manipulation without the need to corresponding increase.In addition, hand that the embodiment of the present invention provides behaviour control valve, the position at the spool place of the reaction main control valve that the position of operating grip can be similar to, i.e. the aperture of valve port, and without the need to extra power equipment, reduce cost.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a hand behaviour control valve, comprise main control valve and operating grip, described main control valve comprises: housing, protecgulum, bonnet and the spool be arranged in described housing that slides, the rear and front end of described spool forms two main control valve hydraulic fluid ports with described protecgulum and described bonnet respectively, it is characterized in that, cavity is provided with in described spool, slide in described cavity and be provided with pilot valve, described pilot valve and described operating grip are in transmission connection, described pilot valve is provided with the second drain pan, the spool two ends of described main control valve arrange the first drain pan respectively, one end of described first drain pan is communicated with described main control valve hydraulic fluid port, when described pilot valve is in initial position, two described main control valve hydraulic fluid ports respectively pilot valve hydraulic fluid port described with two are communicated with, the other end of described first drain pan is by the closed front of described pilot valve, when described pilot valve moves to ultimate range to side, be communicated with described second drain pan with the other end of described first drain pan of described pilot valve moving direction homonymy, the other end of described first drain pan of tossing about with described pilot valve moving direction is by the closed front of described pilot valve, described pilot valve is provided with the through hole be communicated with main control valve return opening with described second drain pan respectively.
2. hand behaviour control valve according to claim 1, it is characterized in that, the minimum range of the notch of described first drain pan and the notch of described second drain pan is X
1, the minimum range of the spool of the hydraulic fluid port of described pilot valve and the described main control valve of homonymy is X
0, and X
0> X
1.
3. hand according to claim 1 behaviour control valve, is characterized in that, when described spool is positioned at initial position, and the cross sectional area equal and opposite in direction of two described main control valve hydraulic fluid ports and corresponding described pilot valve hydraulic fluid port connectivity part.
4. hand behaviour control valve according to claim 1, it is characterized in that, be provided with for the automatically reset valve core reseting spring assembly of described spool between described protecgulum and described spool, one end of described valve core reseting spring assembly band spring is fixedly mounted on the end face of described spool, and the described valve core reseting spring assembly the other end is actively plugged in described protecgulum.
5. hand behaviour control valve according to claim 4, it is characterized in that, described valve core reseting spring assembly is two.
6. hand behaviour control valve according to claim 1, it is characterized in that, be provided with for the automatically reset pilot valve return spring assembly of described pilot valve between described protecgulum and described pilot valve, one end of described pilot valve return spring assembly band spring is fixedly mounted in described pilot valve, and the described pilot valve return spring assembly the other end is actively plugged in described protecgulum.
7. hand behaviour control valve according to claim 1, it is characterized in that, described protecgulum is provided with the first Remote mouth, the front end of described pilot valve is positioned at described first Remote mouth, described bonnet is provided with the second Remote mouth, the rear end of described pilot valve is positioned at described second Remote mouth.
8. hand behaviour control valve according to claim 1, it is characterized in that, described first drain pan is L-type.
9. hand behaviour control valve according to claim 1, it is characterized in that, described second drain pan is arranged on the outer surface of described pilot valve.
10. hand behaviour control valve according to claim 1, it is characterized in that, described pilot valve and described operating grip are in transmission connection by transmitting assemblies, described transmitting assemblies comprises thrust link, connecting rod and crank, one end of described thrust link is inserted in described pilot valve, the other end of described thrust link through the interlayer of described bonnet and one end of described connecting rod hinged, the other end of described connecting rod and one end of described crank hinged, the other end of described crank and the connecting end of described operating grip hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401456.4A CN103486291B (en) | 2013-09-05 | 2013-09-05 | A kind of hand behaviour control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401456.4A CN103486291B (en) | 2013-09-05 | 2013-09-05 | A kind of hand behaviour control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103486291A CN103486291A (en) | 2014-01-01 |
| CN103486291B true CN103486291B (en) | 2016-02-17 |
Family
ID=49826765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310401456.4A Active CN103486291B (en) | 2013-09-05 | 2013-09-05 | A kind of hand behaviour control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486291B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776075B (en) * | 2014-01-14 | 2019-02-05 | 卡特彼勒（青州）有限公司 | Hydraulic valve and loading machine including the hydraulic valve |
| CN106438538A (en) * | 2016-07-11 | 2017-02-22 | 润琛液压机械南通有限公司 | Hydraulic valve for caterpillar band harvester |
| CN108105189B (en) * | 2017-11-09 | 2020-04-14 | 武汉船用机械有限责任公司 | Proportional direction valve |
| CN114060344B (en) * | 2021-11-22 | 2023-06-02 | 山东临工工程机械有限公司 | Pilot handle valve, hydraulic system of excavator and control method of hydraulic system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236015A (en) * | 1989-12-13 | 1993-08-17 | Hydrolux S.A.R.L. | Position-controlled proportional directional valve |
| CN1766384A (en) * | 2004-10-25 | 2006-05-03 | Smc株式会社 | Electromagnetic pilot type directional control valve |
| JP4052881B2 (en) * | 2002-06-04 | 2008-02-27 | 株式会社テージーケー | 3-way selector valve |
| CN201269329Y (en) * | 2008-08-21 | 2009-07-08 | 上海立新液压有限公司 | Three-way pressure reducing valve |
| CN201851708U (en) * | 2010-10-29 | 2011-06-01 | 胡安方 | Double-power switching valve |
-
2013
- 2013-09-05 CN CN201310401456.4A patent/CN103486291B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236015A (en) * | 1989-12-13 | 1993-08-17 | Hydrolux S.A.R.L. | Position-controlled proportional directional valve |
| JP4052881B2 (en) * | 2002-06-04 | 2008-02-27 | 株式会社テージーケー | 3-way selector valve |
| CN1766384A (en) * | 2004-10-25 | 2006-05-03 | Smc株式会社 | Electromagnetic pilot type directional control valve |
| CN201269329Y (en) * | 2008-08-21 | 2009-07-08 | 上海立新液压有限公司 | Three-way pressure reducing valve |
| CN201851708U (en) * | 2010-10-29 | 2011-06-01 | 胡安方 | Double-power switching valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103486291A (en) | 2014-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103486291B (en) | A kind of hand behaviour control valve | |
| CN204553385U (en) | Valve core of multiway valve, load sensing multi-way valve and excavator | |
| CN105864139A (en) | Hydraulic operated directional control valve | |
| CN205859196U (en) | The valve body of regulating flow quantity | |
| CN103062444B (en) | Water pressure plug-in type three-position four-way electromagnetic directional valve | |
| CN107965607A (en) | A kind of deep-sea ball valve control system | |
| CN205207307U (en) | Magnetic exchange valve | |
| CN203442298U (en) | Axial-flow type regulating valve | |
| CN113969913A (en) | High-frequency large-flow electro-hydraulic servo valve | |
| WO2019128131A1 (en) | Hydraulic oil cylinder with anti-shear structure | |
| CN201714731U (en) | Valve rod of confluent valve for multiway valve | |
| CN208474553U (en) | A kind of hand-operated direction valve | |
| CN205190837U (en) | Magenetic exchange valve's structure | |
| CN203879835U (en) | Balance valve, counterweight oil cylinder hydraulic control system and vertical support leg oil cylinder hydraulic control system | |
| CN104653537B (en) | Lockable reversing valve | |
| CN104315204A (en) | One-way throttle valve | |
| CA2813109A1 (en) | Pneumatic cylinder with pressure moderator | |
| CN203614820U (en) | Rotation pedal brake valve | |
| CN208089656U (en) | Hydraulic valve bank and drilling machine | |
| TW201723323A (en) | Rotary hydraulic valve for easily changing flowing direction and effectively controlling flow volume in rotary manner | |
| CN106402078B (en) | Order ram control valve | |
| CN205896351U (en) | Gas accuse multiple unit valve | |
| CN201225500Y (en) | Lubrication structure of decelerator connection shaft | |
| CN205136194U (en) | Changeable switching -over valve of meso position function | |
| US1999505A (en) | Twin by-pass valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 |