CN103727267B - Reaper multi-way valve - Google Patents

Reaper multi-way valve Download PDF

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Publication number
CN103727267B
CN103727267B CN201410035887.8A CN201410035887A CN103727267B CN 103727267 B CN103727267 B CN 103727267B CN 201410035887 A CN201410035887 A CN 201410035887A CN 103727267 B CN103727267 B CN 103727267B
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China
Prior art keywords
ceding
taiwan
oil
standing grain
valve block
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CN103727267A (en
Inventor
何贤剑
陈净生
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ZHEJIANG HAIHONG HYDRAULIC TECHNOLOGY Co Ltd
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ZHEJIANG HAIHONG HYDRAULIC TECHNOLOGY Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/20Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
    • F16K11/22Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D69/00Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/03Driving mechanisms or parts thereof for harvesters or mowers fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The invention provides a kind of reaper multi-way valve, belong to technical field of hydraulic pressure.It solve the problem that existing reaper multi-way valve affects reaper harvesting grain efficiency.This reaper multi-way valve comprises ceding of Taiwan valve block, group standing grain valve block and has the first oiling valve block of the first oil suction chamber, and described ceding of Taiwan valve block has ceding of Taiwan spool, ceding of Taiwan main passage and ceding of Taiwan oil inlet passage; Ceding of Taiwan main passage is connected with ceding of Taiwan oil inlet passage, dials standing grain valve block and has group standing grain spool, group standing grain main passage and dial standing grain oil inlet passage; Ceding of Taiwan main passage Single port is connected with the first oil suction chamber, dials standing grain main passage Single port and dial standing grain oil inlet passage to be all connected with the another port of ceding of Taiwan main passage; This multi-way valve also comprises the oil mass distribution structure dialling standing grain oil inlet passage inner fluid amount that can control to enter when the action of ceding of Taiwan spool and dial standing grain valve block.This reaper multi-way valve can make the ceding of Taiwan link with group standing grain two actions; According to circumstances can also realize whole action interlock; Effectively improve the working efficiency of reaper thus.

Description

Reaper multi-way valve
Technical field
The invention belongs to technical field of hydraulic pressure, relate to a kind of multi-way valve, particularly a kind of reaper multi-way valve.
Background technique
Reaper is the machinery of integration harvesting crops.It is disposable completes harvesting, threshing, and grain is focused on repository, is then being transported on transport vehicle by grain by line belt.
Reaper has a set of hydraulic system, is mainly used in controlling the ceding of Taiwan, winder, left steering, right steering and unloading.At present, grain hydraulic system of harvesting machine adopts hydraulic system as shown in Figure 10 always.It is made up of 4 operating valve blocks, comprises unloading valve block, dials standing grain valve block, ceding of Taiwan switching valve block and steering oil cylinder valve block.Can find out from the hydraulic schematic diagram shown in Figure 10, the operating valve block of this hydraulic system adopts oil pipe to be connected with between operating valve block, causes pipeline to connect many, complex structure.There are 5 safety valves in this hydraulic system, need reserved a lot of installing space at assembling reaper, have a strong impact on whole productive temp.
Analyzing from Hydraulic System Principle, there is the potential safety hazard of a pressure piling in this hydraulic system.This hydraulic system belongs to train, the work oil return of previous action can enter oil-feed place of next action, cause hydraulic system back pressure very high, pressure is maximum reaches more than 30MPa, often causes booster, fluid leaks outside, a series of consequence such as working efficiency reduction.Steering force needed for this hydraulic system is large, so there is the large problem of driver's labor intensity.The ceding of Taiwan in this hydraulic system only can successively be carried out with group standing grain two actions, and then affects the working efficiency of whole reaper; In other words, the reaper harvesting grain with above-mentioned hydraulic system is adopted to there is the low problem of harvesting efficiency.The oil pressure that this hydraulic system is defeated by grain barrel-removing increases along with the operating time and reduces, and then causes grain barrel-removing often to fall down, and there is certain potential safety hazard.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of reaper multi-way valve, the technical problem to be solved in the present invention how to improve the efficiency of reaper harvesting grain.
Object of the present invention realizes by following technical proposal: a kind of reaper multi-way valve, comprise ceding of Taiwan valve block and dial standing grain valve block, it is characterized in that, this multi-way valve also comprises the first oiling valve block with the first oil suction chamber, and described ceding of Taiwan valve block has ceding of Taiwan spool, ceding of Taiwan main passage and ceding of Taiwan oil inlet passage; Ceding of Taiwan main passage is connected with ceding of Taiwan oil inlet passage, dials standing grain valve block and has group standing grain spool, group standing grain main passage and dial standing grain oil inlet passage; The Single port of ceding of Taiwan main passage is connected with the first oil suction chamber, and Single port and group standing grain oil inlet passage of dialling standing grain main passage are all connected with the another port of ceding of Taiwan main passage; This multi-way valve also comprises the oil mass distribution structure dialling standing grain oil inlet passage inner fluid amount that can control to enter when the action of ceding of Taiwan spool and dial standing grain valve block.
When ceding of Taiwan spool or when dialling standing grain spool single movement, fluid all enters accordingly in valve block, has realized the ceding of Taiwan or winder action.When ceding of Taiwan spool and oil mass distribution structure when dialling the equal action of standing grain spool ensure that a large amount of fluid has gone ceding of Taiwan action, fraction fluid has gone to dial standing grain action; And then ceding of Taiwan action can be made to link with group standing grain action; The harvesting function thus with this multi-way valve improves the efficiency of harvesting grain.
In above-mentioned reaper multi-way valve, described ceding of Taiwan valve block comprises valve body, and ceding of Taiwan main passage is opened on valve body, and ceding of Taiwan spool penetrates in valve body; Ceding of Taiwan main passage comprises three logical oil pockets, and three logical oil pockets pass through relative to the axis of ceding of Taiwan spool and are followed successively by logical oil pocket one, logical oil pocket two, logical oil pocket three; Logical oil pocket one is all connected with the first oil suction chamber of the first oiling valve block with logical oil pocket three; The Single port dialling standing grain main passage is all connected with logical oil pocket two with group standing grain oil inlet passage; Oil mass distribution structure comprises and is positioned on ceding of Taiwan spool and makes the throttle orifice that logical oil pocket one makes when ceding of Taiwan spool is positioned at right position logical oil pocket three be connected with logical oil pocket two with logical oil pocket two-phase connected sum when ceding of Taiwan spool is positioned at left position.
When ceding of Taiwan spool is positioned at left position or right position, fluid only flows to by throttle orifice and dials standing grain main passage; In other words, oil mass allocation proportion is determined by the pore size of throttle orifice, and the aperture of throttle orifice is less, enters the fluid dialling standing grain main passage fewer.Specifically, ceding of Taiwan spool outer side surface has the logical oil groove of the first annular logical oil pocket one being connected when ceding of Taiwan spool is positioned at meta with logical oil pocket two and the logical oil groove of the second annular that logical oil pocket three is connected with logical oil pocket two; Throttle orifice makes the logical oil groove of the first annular be connected with the logical oil groove of the second annular.Throttle orifice is the inclined hole be obliquely installed relative to ceding of Taiwan spool shaft axis.
In above-mentioned reaper multi-way valve, this reaper multi-way valve also comprises switching valve block and unloading valve block; Switching valve block has and turns to main passage and turn to oil inlet passage; Unloading valve block has unloading main passage and unloading oil inlet passage; Ceding of Taiwan main passage, turn to main passage, dial standing grain main passage be connected successively with unloading main passage; Oil inlet passage and unloading oil inlet passage is turned to all to be connected with the another port of ceding of Taiwan main passage.This reaper multi-way valve can complete the ceding of Taiwan action of reaper and dial standing grain action, can realize again go to action and the unloading action of reaper; Therefore this reaper multi-way valve has multiple functional advantage.
In above-mentioned reaper multi-way valve, be provided with the second oiling valve block with the second oil suction chamber between described ceding of Taiwan valve block and group standing grain valve block, ceding of Taiwan main passage is connected by the second oil suction chamber with turning to main passage; Turn to oil inlet passage, dial standing grain oil inlet passage unloading oil inlet passage be all connected with the second oil suction chamber.According to actual conditions, can to fuel feeding in the second oiling valve block, also can without the need to fuel feeding.Fuel feeding in the second oiling valve block and when ceding of Taiwan action, effectively ensures to feed and dials standing grain valve block, fluid between switching valve block and unloading valve block, improve the performance of hydraulic system, can realize the ceding of Taiwan, winder, turn to and all link with unloading.
In above-mentioned reaper multi-way valve, in described valve body, have work oil duct, described work oil duct is in series with one-way valve, in valve body, is provided with the unlocking structure removing one-way valve one-way flow.When the operation ceding of Taiwan is risen, ceding of Taiwan valve block is in out oil condition, and fluid is entered in ceding of Taiwan oil cylinder by one-way valve.Arrange ceding of Taiwan oil cylinder when one-way valve avoids reaper to be in harvesting crop slowly to reset under ceding of Taiwan Action of Gravity Field, cause the ceding of Taiwan naturally drop, and then impact is normally gathered in.When the operation ceding of Taiwan declines, manipulation unlocking structure removes one-way valve one-way flow, pushes back work oil duct, and then discharge from drainback passage at the in-oil cylinder fluid of ceding of Taiwan Action of Gravity Field lower cutting table.
In above-mentioned reaper multi-way valve, described unlocking structure comprises the slide bar chamber and pressure oil duct that are positioned at valve body, and being provided with in slide bar chamber can slide bar in axial sliding, and the one end in slide bar chamber is connected with pressure oil duct, and the other end is connected with work oil duct.When ceding of Taiwan valve block is in out oil condition, work oil duct is connected with ceding of Taiwan oil inlet passage, and slide bar slides to away from inner elements of check valve direction.When ceding of Taiwan valve block is in oil return state, pressure oil duct is connected with ceding of Taiwan oil inlet passage, and the high-voltage oil liquid in ceding of Taiwan main passage promotes slide bar and slides near inner elements of check valve direction, and then promotes the spool of one-way valve, forces one-way valve opens; Therefore fluid refluxes by one-way valve.
In above-mentioned reaper multi-way valve, described unlocking structure comprises push rod and electromagnet, on electromagnet fixed valve body, push rod is fixedly connected with iron core, when ceding of Taiwan valve block is in oil return state, controls electromagnet action, and then drive push rod move and promote the spool of one-way valve, force one-way valve opens; Therefore fluid refluxes by one-way valve.
In above-mentioned reaper multi-way valve, described oil mass distribution structure comprises the throttling control valve being connected on and dialling the Single port of standing grain main passage and the another port of ceding of Taiwan main passage and be connected in oil circuit.When dialling standing grain spool single movement, throttling control valve can be in primary flux state, also can be in large flux state.When the action equal to group standing grain spool of ceding of Taiwan spool, throttling control valve is in primary flux state, and ensure that a large amount of fluid has gone ceding of Taiwan action, the fluid of fraction has gone winder action.
In above-mentioned reaper multi-way valve, described throttling control valve is between ceding of Taiwan valve block and the second oiling valve block.
Compared with prior art, this reaper multi-way valve is made up of polylith valve block, without the need to being connected by pipeline between adjacent valve block, has the advantage that structure is simple and compact thus.Ceding of Taiwan valve block in this reaper multi-way valve, dial standing grain valve block, switching valve block and unloading valve block and be all arranged in parallel, eliminate the potential safety hazard of pressure piling, stop booster, fluid leaks outside and the problem such as inefficiency.
This reaper multi-way valve only need arrange safety valve in oiling valve block, in other words, safety valve is integrated in the first oiling valve block and the second oiling valve block, in assembling reaper, without the need to the space of reserved mounting safety valve, the space of effectively saving reaper thus and the impact eliminated productive temp.
This reaper multi-way valve at least can make the ceding of Taiwan link with group standing grain two actions; According to circumstances can also realize whole action interlock; Effectively improve the working efficiency of reaper thus.
This reaper multi-way valve arranges one-way valve in ceding of Taiwan valve block, effectively stops the problem that the ceding of Taiwan drops naturally.
This reaper multi-way valve is arranged on the dirty of ceding of Taiwan valve block by dialling standing grain valve block, more meets the operating habit of driver, convenient manipulation; Be more conducive to distribute oil mass and manufacture and design oil mass distribution structure simultaneously.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of this reaper multi-way valve embodiment one.
Fig. 2 is the main TV structure schematic diagram of this reaper multi-way valve embodiment one.
Fig. 3 is the sectional structure schematic diagram of A-A in Fig. 2.
Fig. 4 is the sectional structure schematic diagram of B-B in Fig. 2.
Fig. 5 is the hydraulic schematic diagram of this reaper multi-way valve embodiment two.
Fig. 6 is the perspective view of this reaper multi-way valve embodiment two.
Fig. 7 is the main TV structure schematic diagram of this reaper multi-way valve embodiment two.
Fig. 8 is the sectional structure schematic diagram of C-C in Fig. 7.
Fig. 9 is the sectional structure schematic diagram of D-D in Fig. 8.
Figure 10 is the hydraulic schematic diagram of existing grain hydraulic system of harvesting machine.
In figure, the 1, first oiling valve block; 1a, the first oil suction chamber; 2, ceding of Taiwan valve block; 2a, ceding of Taiwan spool; 2b, ceding of Taiwan main passage; 2b1, logical oil pocket one; 2b2, logical oil pocket two; 2b3, logical oil pocket three; 2c, ceding of Taiwan oil inlet passage; 2d, valve body; 2e, the logical oil groove of the first annular; 2f, the logical oil groove of the second annular; 2g, throttle orifice; 2h, work oil duct; 2i, drainback passage; 2j, one-way valve; 2k, pressure oil duct; 2m, slide bar; 3, the second oiling valve block; 3a, the second oil suction chamber; 4, switching valve block; 4a, turn to main passage; 4b, turn to oil inlet passage; 5, standing grain valve block is dialled; 5a, group standing grain main passage; 5b, group standing grain oil inlet passage; 6, unloading valve block; 6a, unloading main passage; 6b, unloading oil inlet passage; 7, scavenger valve block; 8, bolt and nut.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
Embodiment one
As shown in Figure 1 to Figure 3, this reaper multi-way valve comprises the first oiling valve block 1, ceding of Taiwan valve block 2, dials standing grain valve block 5 and scavenger valve block 7.Above-mentioned four pieces of valve blocks are established by the first oiling valve block 1, ceding of Taiwan valve block 2, group standing grain valve block 5 and scavenger valve block 7 are folded successively, and above-mentioned four pieces of valve blocks are fixedly connected with by bolt and nut 8.
First oiling valve block 1 has the first oil suction chamber 1a.Ceding of Taiwan valve block 2 has ceding of Taiwan spool 2a, ceding of Taiwan main passage 2b and ceding of Taiwan oil inlet passage 2c; Ceding of Taiwan main passage 2b is connected with ceding of Taiwan oil inlet passage 2c.Dial standing grain valve block 5 there is group standing grain spool, group standing grain main passage 5a and dial standing grain oil inlet passage 5b; Dial standing grain main passage 5a to be connected with group standing grain oil inlet passage 5b.The Single port of ceding of Taiwan main passage 2b is connected with the first oil suction chamber 1a, and the Single port dialling standing grain main passage 5a is connected with the another port of ceding of Taiwan main passage 2b; The another port of dialling standing grain main passage 5a is return opening.Known by analytical structure, the working oil path of ceding of Taiwan valve block 2 is arranged in parallel with the working oil path dialling standing grain valve block 5.This multi-way valve also comprises the oil mass distribution structure dialling standing grain main passage 5a inner fluid amount that can control to enter when the equal action of ceding of Taiwan spool 2a and dial standing grain valve block 5.Ensureing that a large amount of fluid enters ceding of Taiwan oil inlet passage 2c by arranging oil mass distribution structure, namely having ensured ceding of Taiwan action; Fraction fluid enters dials standing grain oil inlet passage 5b, also can ensure to dial standing grain action.
As shown in Figure 3 and Figure 4, the concrete structure of oil mass distribution structure is as follows: ceding of Taiwan valve block 2 comprises valve body 2d, and ceding of Taiwan main passage 2b is opened on valve body 2d, and ceding of Taiwan spool 2a penetrates in valve body 2d; Ceding of Taiwan main passage 2b comprises three logical oil pockets, and three logical oil pockets pass through relative to the axis of ceding of Taiwan spool 2a and are followed successively by logical oil pocket one 2b1, logical oil pocket two 2b2, logical oil pocket three 2b3; Logical oil pocket one 2b1 is all connected with the first oil suction chamber 1a of the first oiling valve block 1 with logical oil pocket three 2b3; The Single port dialling standing grain main passage 5a is connected with logical oil pocket two 2b2.Ceding of Taiwan spool 2a outer side surface has the logical oil groove 2e of the first annular logical oil pocket one 2b1 being connected when ceding of Taiwan spool 2a is positioned at meta with logical oil pocket two 2b2 and the logical oil groove 2f of the second annular that logical oil pocket three 2b3 is connected with logical oil pocket two 2b2.Ceding of Taiwan spool 2a is provided with the throttle orifice 2g that the logical oil groove 2e of the first annular is connected with the logical oil groove 2f of the second annular; And throttle orifice 2g makes logical oil pocket one 2b1 be connected with logical oil pocket two 2b2 to make logical oil pocket three 2b3 be connected with logical oil pocket two 2b2 with the throttle orifice 2g when ceding of Taiwan spool 2a is positioned at right position when ceding of Taiwan spool 2a is positioned at left position.
Also have work oil duct 2h and drainback passage 2i in valve body 2d, work oil duct 2h is in series with one-way valve 2j, in valve body 2d, is provided with the unlocking structure can removed one-way valve 2j one-way flow and fluid is refluxed.Unlocking structure comprises the slide bar chamber and pressure oil duct 2k that are positioned at valve body 2d, and being provided with in slide bar chamber can slide bar 2m in axial sliding, and the one end in slide bar chamber is connected with pressure oil duct 2k, and the other end is connected with work oil duct 2h.
By describing the action of the ceding of Taiwan spool 2a of ceding of Taiwan valve block 2, introduce function and the advantage of this reaper multi-way valve further: the ceding of Taiwan spool 2a of ceding of Taiwan valve block 2 is positioned at meta state as shown in Figure 4; Under this state, work oil duct 2h is all connected with drainback passage 2i with pressure oil duct 2k, and the spool of one-way valve 2j is in cut-off state under spring force effect, avoids the fluid in executive component to reflux; Logical oil pocket one 2b1 is connected by the logical oil groove 2e of the first annular with logical oil pocket two 2b2, and logical oil pocket three 2b3 is connected by the logical oil groove 2f of the second annular with logical oil pocket two 2b2.
When the ceding of Taiwan spool 2a of ceding of Taiwan valve block 2 moves to left position state, work oil duct 2h is connected with ceding of Taiwan oil inlet passage 2c; The pressure of fluid overcomes the spring force in one-way valve 2j, backs down the spool of one-way valve 2j, and fluid is discharged from the port of work oil duct 2h by one-way valve 2j; In other words, enter in the executive component be connected with the oil duct 2h that works.Pressure oil duct 2k is connected with drainback passage 2i.Logical oil pocket three 2b3 and logical oil pocket two 2b2 is in cut-off state, and logical oil pocket one 2b1 is connected by throttle orifice 2g with logical oil pocket two 2b2; By controlling the size of throttle orifice 2g, regulate the flow entered in logical oil pocket two 2b2; In other words, control to enter the oil mass dialled in standing grain main passage.
When the ceding of Taiwan spool 2a of ceding of Taiwan valve block 2 moves to right position state, work oil duct 2h is connected with drainback passage 2i.Pressure oil duct 2k is connected with ceding of Taiwan oil inlet passage 2c; The pressure of fluid promotes slide bar 2m and moves, and slide bar 2m overcomes the spring force in one-way valve 2j, backs down the spool of one-way valve 2j, and fluid to be returned from the port of work oil duct 2h by one-way valve 2j and stays, until discharge from drainback passage 2i; In other words, the fluid being positioned at executive component is discharged from drainback passage 2i by one-way valve 2j and work oil duct 2h.Logical oil pocket one 2b1 and logical oil pocket two 2b2 is in cut-off state, and logical oil pocket three 2b3 is connected by throttle orifice 2g with logical oil pocket two 2b2.
Embodiment two
The present embodiment with the structure of embodiment one and principle substantially identical, different place is: as shown in Figures 5 to 9, and this reaper multi-way valve also comprises switching valve block 4, unloading valve block 6 and the second oiling valve block 3.Above-mentioned seven pieces of valve blocks are established by the first oiling valve block 1, ceding of Taiwan valve block 2, second oiling valve block 3, switching valve block 4, group standing grain valve block 5, unloading valve block 6 and scavenger valve block 7 are folded successively.Switching valve block 4, dial between standing grain valve block 5 and these three pieces of valve blocks of unloading valve block 6 position can mutually exchange.
Switching valve block 4 has and turns to main passage 4a and turn to oil inlet passage 4b.Unloading valve block 6 has unloading main passage 6a and unloading oil inlet passage 6b.Second oiling valve block 3 has the second oil suction chamber 3a.
Logical oil pocket two 2b2 of ceding of Taiwan main passage 2b is connected with the second oil suction chamber 3a.Group standing grain main passage 5a turning to main passage 4a, dial standing grain valve block 5 of switching valve block 4, the unloading main passage 6a of unloading valve block 6 are communicated with successively.The main passage 4a that turns to of switching valve block 4 is connected with the second oil suction chamber 3a.The unloading oil inlet passage 6b of the unloading oil inlet passage 6b of switching valve block 4, group standing grain oil inlet passage 5b of group standing grain valve block 5, unloading valve block 6 is all connected with the second oil suction chamber 3a.
Embodiment three
The present embodiment with the structure of embodiment one and principle substantially identical, different place is: unlocking structure comprises push rod and electromagnet, on electromagnet fixed valve body 2d, push rod is fixedly connected with iron core, when ceding of Taiwan valve block 2 is in right position, control electromagnet action, and then drive push rod move and promote the spool of one-way valve 2j, force one-way valve 2j to open; Therefore fluid refluxes by one-way valve 2j.
Embodiment four
The present embodiment with the structure of embodiment one and principle substantially identical, different place is: oil mass distribution structure comprises the throttling control valve being connected on and dialling the Single port of standing grain main passage 5a and the another port of ceding of Taiwan main passage 2b and be connected in oil circuit.Throttling control valve is between ceding of Taiwan valve block 2 and the second oiling valve block 3.

Claims (10)

1. a reaper multi-way valve, comprise ceding of Taiwan valve block (2) and dial standing grain valve block (5), it is characterized in that, this multi-way valve also comprises the first oiling valve block (1) with the first oil suction chamber (1a), and described ceding of Taiwan valve block (2) has ceding of Taiwan spool (2a), ceding of Taiwan main passage (2b) and ceding of Taiwan oil inlet passage (2c); Ceding of Taiwan main passage (2b) is connected with ceding of Taiwan oil inlet passage (2c), dials standing grain valve block (5) and has group standing grain spool, group standing grain main passage (5a) and dial standing grain oil inlet passage (5b); The Single port of ceding of Taiwan main passage (2b) is connected with the first oil suction chamber (1a), and Single port and group standing grain oil inlet passage (5b) of dialling standing grain main passage (5a) are all connected with the another port of ceding of Taiwan main passage (2b); This multi-way valve also comprises the oil mass distribution structure dialling standing grain oil inlet passage (5b) inner fluid amount that can control to enter when ceding of Taiwan spool (2a) action and dial standing grain valve block (5).
2. reaper multi-way valve according to claim 1, is characterized in that, described reaper multi-way valve also comprises switching valve block (4) and unloading valve block (6); Switching valve block (4) has and turns to main passage (4a) and turn to oil inlet passage (4b); Unloading valve block (6) has unloading main passage (6a) and unloading oil inlet passage (6b); Ceding of Taiwan main passage (2b), turn to main passage (4a), dial standing grain main passage (5a) be connected successively with unloading main passage (6a); Oil inlet passage (4b) and unloading oil inlet passage (6b) is turned to all to be connected with the another port of ceding of Taiwan main passage (2b).
3. reaper multi-way valve according to claim 2, it is characterized in that, be provided with the second oiling valve block (3) with the second oil suction chamber (3a) between described ceding of Taiwan valve block (2) and group standing grain valve block (5), ceding of Taiwan main passage (2b) is connected by the second oil suction chamber (3a) with turning to main passage (4a); Turn to oil inlet passage (4b), dial standing grain oil inlet passage (5b) unloading oil inlet passage (6b) be all connected with the second oil suction chamber (3a).
4. the reaper multi-way valve according to claim 1 or 2 or 3, is characterized in that, described ceding of Taiwan valve block (2) comprises valve body (2d), and ceding of Taiwan main passage (2b) is opened on valve body (2d), and ceding of Taiwan spool (2a) penetrates in valve body (2d); Ceding of Taiwan main passage (2b) comprises three logical oil pockets, and three logical oil pockets pass through relative to the axis of ceding of Taiwan spool (2a) and are followed successively by logical oil pocket one (2b1), logical oil pocket two (2b2), logical oil pocket three (2b3); Logical oil pocket one (2b1) is all connected with first oil suction chamber (1a) of the first oiling valve block (1) with logical oil pocket three (2b3); The Single port dialling standing grain main passage (5a) is all connected with logical oil pocket two (2b2) with group standing grain oil inlet passage (5b); Oil mass distribution structure comprises that to be positioned at ceding of Taiwan spool (2a) upper and make logical oil pocket one (2b1) be connected and the throttle orifice (2g) making logical oil pocket three (2b3) be connected with logical oil pocket two (2b2) when ceding of Taiwan spool (2a) is positioned at right position with logical oil pocket two (2b2) when ceding of Taiwan spool (2a) is positioned at left position.
5. reaper multi-way valve according to claim 4, it is characterized in that, described ceding of Taiwan spool (2a) outer side surface has the logical oil groove (2e) of the first annular logical oil pocket one (2b1) being connected with logical oil pocket two (2b2) when ceding of Taiwan spool (2a) is positioned at meta and the logical oil groove (2f) of the second annular that logical oil pocket three (2b3) is connected with logical oil pocket two (2b2); Throttle orifice (2g) makes the logical oil groove (2e) of the first annular be connected with the logical oil groove (2f) of the second annular.
6. reaper multi-way valve according to claim 4, it is characterized in that, have work oil duct (2h) in described valve body (2d), described work oil duct (2h) is in series with one-way valve (2j), in valve body (2d), is provided with the unlocking structure removing one-way valve (2j) one-way flow.
7. reaper multi-way valve according to claim 6, it is characterized in that, described unlocking structure comprises the slide bar chamber and pressure oil duct (2k) that are positioned at valve body (2d), being provided with in slide bar chamber can slide bar (2m) in axial sliding, the one end in slide bar chamber is connected with pressure oil duct (2k), and the other end is connected with work oil duct (2h).
8. reaper multi-way valve according to claim 6, is characterized in that, described unlocking structure comprises push rod and electromagnet, and on electromagnet fixed valve body, push rod is fixedly connected with iron core.
9. reaper multi-way valve according to claim 3, is characterized in that, described oil mass distribution structure comprises the throttling control valve being connected on and dialling the Single port of standing grain main passage (5a) and the another port of ceding of Taiwan main passage (2b) and be connected in oil circuit.
10. reaper multi-way valve according to claim 9, is characterized in that, described throttling control valve is positioned between ceding of Taiwan valve block (2) and the second oiling valve block (3).
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CN104454738B (en) * 2014-12-22 2017-02-22 浙江海宏液压科技股份有限公司 Agriculture machine control valve
CN108930679B (en) * 2017-05-27 2024-08-13 江苏沃得农业机械股份有限公司 Synchronous valve for controlling harvester steering and header lifting
CN107420367B (en) * 2017-09-26 2023-06-30 浙江海宏液压科技股份有限公司 Manual control valve of harvester
CN107620812B (en) * 2017-10-30 2024-04-19 圣邦集团有限公司 Multi-way valve with valve rod interlocking positioning function
CN108180182A (en) * 2018-01-15 2018-06-19 河北工程大学 A kind of all hydraulic caterpillar reverse circulation engineering drilling rig dedicated integrated valve group

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