CN2476673Y - Pressure balance type hydraulic multichannel change valve operated by single bar - Google Patents
Pressure balance type hydraulic multichannel change valve operated by single bar Download PDFInfo
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- CN2476673Y CN2476673Y CN 99256629 CN99256629U CN2476673Y CN 2476673 Y CN2476673 Y CN 2476673Y CN 99256629 CN99256629 CN 99256629 CN 99256629 U CN99256629 U CN 99256629U CN 2476673 Y CN2476673 Y CN 2476673Y
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Abstract
The utility model is a pressure balance type hydraulic pressure multi-channel directional conversion valve operated by single bar, mainly consisting of a positioning plate(1), a main valve rod(3), a valve(4) and an unilateral valve core(17). The proposal of the utility model is to provide a suitable three-channel three position three-way manual directional conversion vale for the grain combine device hydraulic pressure system. The valve is a mono-lever control integrated multi-channel directional conversion valve. A control rod(2) drives the main valve rod(3) to rotate along the circumferential direction and to move along the axial direction. The unilateral valve core(17) of any channel is opened and closed by the inclined table(G) of the main valve rod(3) to achieve the ascending and descending of the one-way oil cylinder. The utility model has the advantages of compact structure, no leakage, stable conversion, reliable operation, long service life and easy operation. The utility model is an ideal new directional conversion valve.
Description
The utility model discloses a kind of mono-lever control pressure balance type hydraulic multichannel conversion valve, belong to hydraulic transmission control technique field.
At present, multiple directional control valve commonly used mostly is sliding valve structure, as hydraulic electromagnetic change valve, hydraulic manual selector valve etc.Let out greatlyyer in these valves, and physical dimension is bigger, is not suitable in the system of positioning requirements strictness.Though cone valve structure is arranged, be generally multiple combined-type, exist between sheet and leak, complex structure, volume is bigger than normal, handles inconvenience.
The purpose of this utility model is to provide a kind of three road suitable 3-position-3-way hand-operated direction valves for the grain combine hydraulic system.This valve is mono-lever control, integral multi-way reversing valve.
Mono-lever control pressure balance type hydraulic multichannel conversion valve is by positioning plate (1), main valve stem (3), valve body (4), the device that nonreturn valve core (17) and steel ball (19) etc. are formed, valve body (4) is the cylinder shape valve of integrated steel, its center is provided with an axial valve opening, interior dress main valve stem (3), it is advancing of three one-way cylinders that valve body (4) end face has three working holes (Z), oil outlet, having three radially unidirectional valve openings (C) on the cross section of valve body (4) communicates with the center valve opening, communicate with working hole (Z) by oil duct (d) again, valve body (4) radially has filler opening (R) and return opening (S) again, respectively by annular groove (P), (T) communicate with the center valve opening.There is a thin neck (N) at main valve stem (3) middle part, respectively there are three sloping platforms (G) and three grooves (H) in thin neck (N) both sides, the said structure both sides of the corresponding main valve stem of valve body (4) (3) have circular groove (P) and (T) respectively, valve body (4) is provided with three unidirectional valve openings (C) on the cross section of the thin neck (N) in corresponding main valve stem (3) middle part, steel ball (19), nonreturn valve core (17), O shape circle (18), spring seat (16), spring (15) and cover cap (14) all are housed in each unidirectional valve opening (C).Oil duct (f) is communicated with circular groove (P) with the oil pocket (B) that is surrounded by valve body (4), nonreturn valve core (17) and cover cap (14).
The utility model is a kind of futuramic integrated type selector valve, and volume is less, and is easy to operate, has realized with three one-way cylinders of an operating handle control.Simple in structure, manufacturability is better, and cone valve structure is used at main position.The transposition of the utility model operating handle and push pull maneuver scope be by positioning plate restriction and location, drives the keying of three nonreturn valve cores of main valve stem action control by operating handle, realizes control to three one-way cylinders with this.The transposition of main valve stem realizes switching carries out oil cylinder, and it moves axially the rise and fall of control oil cylinder.This nonreturn valve core adopts cone valve structure, has two kinds of functions of one-way valve and hydraulic lock concurrently.It is strong to have contamination resistance, and speed of response is fast, simple in structure, compact, reliable performance, advantages such as life-span length.Overcome the hydraulic pressure stuck phenomenon of general selector valve, this poppet valve core is the leak free new design of a kind of balanced type.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a longitudinal profile structural drawing of the present utility model.
Fig. 2 is the right elevation of the utility model Fig. 1.
Fig. 3 is the transverse cross-sectional view of the utility model Fig. 1.
Among Fig. 1; 1, positioning plate; 2, operating handle; 3, main valve stem; 4, valve body; 5, safe spool; 6, Safety valve body; 7, safety valve spring seat; 8, safety valve spring; 9, safe bonnet; 10, lid; 11, return spring seat; 12, return spring; 13, bearing pin; 14, cover cap; 15, spring; 16, spring seat; 17, nonreturn valve core; 18, O shape circle; 19, steel ball.
The utility model is to be provided with an axial valve opening at the center of the cylinder shape valve of an integrated steel (4), interior dress main valve stem (3) is seen accompanying drawing 2: valve body (4) end face has three working holes (Z), be three one-way cylinders into and out of hydraulic fluid port, see accompanying drawing 3: have three unidirectional valve openings (C) radially on the cross section of valve body (4), communicate with the center valve opening, see accompanying drawing 1; Communicate with working hole (z) by oil duct (d) again, steel ball (19), nonreturn valve core (17), O shape circle (18), spring seat (16), spring (15) and cover cap (14) are housed in the unidirectional valve opening (C), and valve body (4) is seen accompanying drawing 3: the footpath upwards has filler opening (R) again and return opening (S) is seen accompanying drawing 1; Radially inclined hole (f) on the valve body (4) comes oil to guide to the rear end oil pocket (B) of nonreturn valve core (17) pump, oil duct (e) between main valve stem (3) neck (N) and valve body (4) comes oil to guide to nonreturn valve core (17) lower end again pump, nonreturn valve core (17) targeting part diameter equates with the seat bore dia of unidirectional valve opening (C), therefore, the inside and outside pressure balance of nonreturn valve core (17).Open shoulder nonreturn valve core (17) as long as overcome the power of spring (15).There is a thin neck (N) at main valve stem (3) middle part.Main valve stem (3) is when being in the neutral position, and steel ball (19) floats between thin neck (N) and the nonreturn valve core (17).Respectively there are three sloping platforms (G) and three grooves (H) in thin neck (N) both sides.During the neutral position, oil suction chamber (P) communicates with oil back chamber (T) by the passage (e) between thin neck (N) and valve opening, at this moment, and pump place unloading condition.Nonreturn valve core (17) is pressed on the valve body (4) by spring (15), has sealed working hole (Z), makes controlled oil cylinder be locked in select location.When main valve stem (3) when being moved to the left, its upper shoulder (M) cuts off the passage (e) between oil suction chamber (P) and oil back chamber (T) earlier, sloping platform (G) promotes steel ball (19), progressively backs down nonreturn valve core (17) then, make fluid enter working hole (Z), controlled oil cylinder is risen through oil suction chamber (P), oil duct (f), oil pocket (B), unidirectional valve opening (C) and oil duct (d).The steel ball (19) of two-way floats in the groove (H) of main valve stem (3) in addition, and its controlled oil cylinder still is positioned at lock state.This valve configuration damped type safety valve plays overload protective function.When main valve stem (3) when moving right, oil suction chamber (P) is still communicated with oil back chamber (T) by passage (e), and the oil return opening increases, the sloping platform in left side progressively promotes steel ball (19) and backs down nonreturn valve core (17), make controlled oil cylinder inner fluid enter oil pocket (P) through working hole (Z), oil duct (d), unidirectional valve opening (C), oil pocket (B) and oil duct (f), come oil to flow back to fuel tank with pump, make controlled oil cylinder under action of gravity, realize descending.Repeat above-mentioned action after the each transposition of main valve stem (3), can make the controlled oil cylinder of other two-way produce identical action.Therefore, can realize controlling whole actions of three one-way cylinders by an operating handle (2) by this valve.
The utility model is seen accompanying drawing 1; Be one and control the purpose that three nonreturn valve cores (17) realize handling three executive components respectively by main valve stem (3) with integrated type valve body (4) with by an operating handle (2).This valve is equivalent to the function of three 3-position-3-way valves, and adopts cone valve structure, can accomplish not have to leak.Compare with spool-type valves, interior discharge significantly reduces, and the weight and volume of comparing with combined type multipotency selector valve all can reduce 25%, and the operating space is little, simple installation.
Claims (3)
1. mono-lever control pressure balance type hydraulic multichannel conversion valve, be by positioning plate (1), main valve stem (3), valve body (4), the device that nonreturn valve core (17) and steel ball (19) etc. are formed, it is characterized in that: valve body (4) is the cylinder shape valve of integrated steel, its center is provided with an axial valve opening, interior dress main valve stem (3), it is advancing of three one-way cylinders that valve body (4) end face has three working holes (Z), oil outlet, having three radially unidirectional valve openings (C) on the cross section of valve body (4) communicates with the center valve opening, communicate with working hole (Z) by oil duct (d) again, valve body (4) radially has filler opening (R) and return opening (S) again, (T) communicates with the center valve opening by annular groove (P) respectively.
2. according to claim 1, mono-lever control pressure balance type hydraulic multichannel conversion valve, it is characterized in that: there is a thin neck (N) at main valve stem (3) middle part, respectively there are three sloping platforms (G) and three grooves (H) in thin neck (N) both sides, the said structure both sides of the corresponding main valve stem of valve body (4) (3) have circular groove (P) and (T) respectively, valve body (4) is provided with three unidirectional valve openings (C) on the cross section of the thin neck (N) in corresponding main valve stem (3) middle part, in each unidirectional valve opening (C) steel ball (19) is housed all, nonreturn valve core (17), O shape circle (18), spring seat (16), spring (15) and cover cap (14).
3. according to claim 1, mono-lever control pressure balance type hydraulic multichannel conversion valve is characterized in that: oil duct (f) is with circular groove (P) and by valve body (4), and the oil pocket (B) that nonreturn valve core (17) and cover cap (14) are surrounded is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256629 CN2476673Y (en) | 1999-12-07 | 1999-12-07 | Pressure balance type hydraulic multichannel change valve operated by single bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256629 CN2476673Y (en) | 1999-12-07 | 1999-12-07 | Pressure balance type hydraulic multichannel change valve operated by single bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2476673Y true CN2476673Y (en) | 2002-02-13 |
Family
ID=34039702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99256629 Expired - Fee Related CN2476673Y (en) | 1999-12-07 | 1999-12-07 | Pressure balance type hydraulic multichannel change valve operated by single bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2476673Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235832B (en) * | 2007-02-02 | 2010-04-21 | 上海立新液压有限公司 | Hand-driven change valve |
| CN106982591A (en) * | 2017-04-27 | 2017-07-28 | 浙江亿森机械有限公司 | A kind of baby combine transfer |
| CN108223479A (en) * | 2018-01-31 | 2018-06-29 | 邹城市益凯德液压有限公司 | The high flow manual reversal valve of included overload protection |
| CN110486344A (en) * | 2019-08-01 | 2019-11-22 | 烟台中宇航空液压有限公司 | Integral single valve-stem high-pressure multi-way directional block valve |
-
1999
- 1999-12-07 CN CN 99256629 patent/CN2476673Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235832B (en) * | 2007-02-02 | 2010-04-21 | 上海立新液压有限公司 | Hand-driven change valve |
| CN106982591A (en) * | 2017-04-27 | 2017-07-28 | 浙江亿森机械有限公司 | A kind of baby combine transfer |
| CN108223479A (en) * | 2018-01-31 | 2018-06-29 | 邹城市益凯德液压有限公司 | The high flow manual reversal valve of included overload protection |
| CN108223479B (en) * | 2018-01-31 | 2024-03-29 | 山东益凯德液压股份有限公司 | Large-flow manual reversing valve with overload protection |
| CN110486344A (en) * | 2019-08-01 | 2019-11-22 | 烟台中宇航空液压有限公司 | Integral single valve-stem high-pressure multi-way directional block valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |