CN103727267A - Multi-way valve of harvesting machine - Google Patents
Multi-way valve of harvesting machine Download PDFInfo
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- CN103727267A CN103727267A CN201410035887.8A CN201410035887A CN103727267A CN 103727267 A CN103727267 A CN 103727267A CN 201410035887 A CN201410035887 A CN 201410035887A CN 103727267 A CN103727267 A CN 103727267A
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- ceding
- taiwan
- oil
- valve
- main passage
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- 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
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-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
- F16K11/22—Multiple-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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/03—Driving mechanisms or parts thereof for harvesters or mowers fluid
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention provides a multi-way valve of a harvesting machine, which belongs to the field of hydraulic technique, and solves the problem that an existing multi-way valve of a harvesting machine can influence the grain harvesting efficiency of the harvesting machine. The multi-way valve of the harvesting machine comprises a header valve block, a seedling shifting valve block, a first oil inlet valve block with a first oil inlet cavity, and an oil mass distribution structure, wherein the header valve block is provided with a header valve core, a header main channel and a header oil inlet channel; the header main channel and the header oil inlet channel are communicated, and the seeding shifting valve block is provided with a seeding shifting valve core, a seeding shifting main channel and a seeding shifting oil inlet channel; an end opening of the header main channel is communicated with the first oil inlet cavity, and an end opening of the seeding shifting main channel and the seeding shifting oil inlet channel are both communicated with the other end opening of the header main channel; the oil mass distribution structure can control the oil volume in the seeding shifting oil inlet channel of the seeding shifting valve block when the header valve core moves. The multi-way valve of the harvesting machine provided by the invention has the advantages that the header movement and the seeding shifting movement are linked, all the movements can be linked according to the condition, and thus the work efficiency of the harvesting machine is effectively improved.
Description
Technical field
The invention belongs to hydraulics field, relate to a kind of multi-way valve, particularly a kind of reaper multi-way valve.
Background technique
Reaper is the machinery of integrated harvesting crops.It is disposable completes harvesting, threshing, and grain is focused on to repository, then by line belt, grain is being transported on transport vehicle.
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 comprised of 4 operating valve pieces, comprises unloading valve piece, dials standing grain valve piece, ceding of Taiwan switching valve piece and steering oil cylinder valve piece.From the hydraulic schematic diagram shown in Figure 10, can find out, between the operating valve piece of this hydraulic system and operating valve piece, adopt oil pipe to be connected, cause pipeline to connect many, complex structure.In this hydraulic system, there are 5 safety valves, at assembling reaper, need to reserve a lot of installing spaces, have a strong impact on whole productive temp.
From Hydraulic System Principle, analyzing, there is the potential safety hazard of a pressure piling in this hydraulic system.This hydraulic system belongs to train, the work oil return meeting of previous action enters oil-feed place of next action, cause hydraulic system back pressure very high, more than pressure maximum can reach 30MPa, tend to cause a series of consequences such as booster, fluid leak outside, working efficiency reduction.The required steering force of this hydraulic system is large, so exist the problem that driver's labor intensity is large.The ceding of Taiwan in this hydraulic system only can successively be carried out with group two actions of standing grain, and then affects the working efficiency of whole reaper; In other words, adopt the reaper harvesting grain with above-mentioned hydraulic system to exist the problem that harvesting efficiency is low.This hydraulic system is defeated by the oil pressure of grain barrel-removing along with the operating time increases and reduces, and then causes grain barrel-removing often to fall down, and has certain potential safety hazard.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed a kind of reaper multi-way valve, the technical problem to be solved in the present invention is how to improve the efficiency of reaper harvesting grain.
Object of the present invention can realize by following technical proposal: a kind of reaper multi-way valve, comprise ceding of Taiwan valve piece and dial standing grain valve piece, it is characterized in that, this multi-way valve also comprises the first oiling valve piece with the first oil suction chamber, and described ceding of Taiwan valve piece has ceding of Taiwan spool, ceding of Taiwan main passage and ceding of Taiwan oil inlet passage; Ceding of Taiwan main passage and ceding of Taiwan oil inlet passage are connected, and dial standing grain valve piece and have the standing grain spool of dialling, dial standing grain main passage and dial standing grain oil inlet passage; One port of ceding of Taiwan main passage is connected with the first oil suction chamber, dials a port of standing grain main passage 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 can control the oil mass distribution structure that enters group standing grain oil inlet passage inner fluid amount of dialling standing grain valve piece when ceding of Taiwan spool moves.
When ceding of Taiwan spool or dial during standing grain spool single movement, fluid all enters accordingly in valve piece, has realized the ceding of Taiwan or winder and has moved.When ceding of Taiwan spool all moves with group standing grain spool, oil mass distribution structure guarantees that a large amount of fluid has gone ceding of Taiwan action, and fraction fluid has gone to dial standing grain action; And then can make ceding of Taiwan action and dial standing grain action interlock; 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 piece 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 and are followed successively by logical oil pocket one, logical oil pocket two, logical oil pocket three with respect to the axis of ceding of Taiwan spool; Logical oil pocket one and logical oil pocket three are all connected with the first oil suction chamber of the first oiling valve piece; Dial a port of standing grain main passage and dial standing grain oil inlet passage and be all connected with logical oil pocket two; Oil mass distribution structure comprises and is positioned on ceding of Taiwan spool and when ceding of Taiwan spool is positioned at left position, makes logical oil pocket one and logical oil pocket two-phase connected sum make to lead to when ceding of Taiwan spool is positioned at the throttle orifice that oil pocket three is connected with logical oil pocket two right time.
When ceding of Taiwan spool is positioned at left position or right position, fluid only can be flowed to and be dialled standing grain main passage by throttle orifice; In other words, oil mass allocation proportion can be definite by the pore size of throttle orifice, and the aperture of throttle orifice is less, and the fluid that enters group standing grain main passage is fewer.Specifically, on ceding of Taiwan spool outer side surface, have the logical oil groove of the first annular that makes logical oil pocket one be connected 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 when ceding of Taiwan spool is positioned at meta; 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 being obliquely installed with respect to ceding of Taiwan spool shaft axis.
In above-mentioned reaper multi-way valve, this reaper multi-way valve also comprises switching valve piece and unloading valve piece; Switching valve piece has the main passage of turning to and turns to oil inlet passage; Unloading valve piece has unloading main passage and unloading oil inlet passage; Ceding of Taiwan main passage, turn to main passage, dial standing grain main passage and unloading main passage and be connected successively; Turn to oil inlet passage and unloading oil inlet passage to be all 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 advantages of multiple functional.
In above-mentioned reaper multi-way valve, between described ceding of Taiwan valve piece and group standing grain valve piece, be provided with the second oiling valve piece with the second oil suction chamber, ceding of Taiwan main passage is connected by the second oil suction chamber with turning to main passage; Turn to oil inlet passage, group standing grain oil inlet passage unloading oil inlet passage to be all connected with the second oil suction chamber.According to actual conditions, can be to fuel feeding in the second oiling valve piece, also can be without fuel feeding.To fuel feeding in the second oiling valve piece and when the ceding of Taiwan is moved, effectively guarantee to feed the fluid of dialling between standing grain valve piece, switching valve piece and unloading valve piece, improve the performance of hydraulic system, can realize the ceding of Taiwan, winder, turn to unloading and all link.
In above-mentioned reaper multi-way valve, in described valve body, have work oil duct, on described work oil duct, be in series with one-way valve, in valve body, be provided with the unlocking structure that can remove one-way valve one-way flow.When the operation ceding of Taiwan is risen, ceding of Taiwan valve piece is in going out oil condition, and fluid enters in ceding of Taiwan oil cylinder by one-way valve.One-way valve is set and avoids reaper ceding of Taiwan oil cylinder when harvesting crop slowly to reset under ceding of Taiwan Action of Gravity Field, cause the ceding of Taiwan naturally to drop, and then the normal harvesting of impact.When the operation ceding of Taiwan declines, manipulation unlocking structure is removed 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 the pressure oil duct that are positioned at valve body, is provided with slide bar in axial sliding in slide bar chamber, and the one end in slide bar chamber is connected with pressure oil duct, and the other end is connected with work oil duct.Ceding of Taiwan valve piece is when going out oil condition, and work oil duct is connected with ceding of Taiwan oil inlet passage, and slide bar is to sliding away from inner elements of check valve direction.When ceding of Taiwan valve piece is during 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 to sliding near inner elements of check valve direction, and then promotes the spool of one-way valve, forces one-way valve opens; Therefore fluid can reflux 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 piece is during in oil return state, controls electromagnet action, and then drive push rod to move and promote the spool of one-way valve, force one-way valve opens; Therefore fluid can reflux by one-way valve.
In above-mentioned reaper multi-way valve, described oil mass distribution structure comprises being connected on dials the throttling control valve that a port of standing grain main passage and the another port of ceding of Taiwan main passage are connected in oil circuit.When dialling during standing grain spool single movement, throttling control valve can be in primary flux state, also can be in large flux state.When ceding of Taiwan spool all moves with group standing grain spool, throttling control valve, in primary flux state, guarantees that a large amount of fluid has gone ceding of Taiwan action, and 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 piece and the second oiling valve piece.
Compared with prior art, this reaper multi-way valve is comprised of polylith valve piece, between adjacent valve block, without being connected by pipeline, has advantages of thus simple in structure and compact.Ceding of Taiwan valve piece in this reaper multi-way valve, dial standing grain valve piece, switching valve piece and unloading valve piece and be all arranged in parallel, eliminate the potential safety hazard of pressure piling, stop that booster, fluid leak outside and the problem such as inefficiency.
This reaper multi-way valve only need arrange safety valve in oiling valve piece, in other words, safety valve is integrated in the first oiling valve piece and the second oiling valve piece, in assembling reaper, without the space of reserved mounting safety valve, effectively save thus the space of reaper and eliminate the impact on productive temp.
This reaper multi-way valve at least can make the ceding of Taiwan and dial two action interlocks of standing grain; According to circumstances can also realize whole action interlocks; Effectively improve thus the working efficiency of reaper.
This reaper multi-way valve arranges one-way valve in ceding of Taiwan valve piece, 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 piece by dialling standing grain valve piece, more meets driver's operating habit, convenient manipulation; Be more conducive to distribute oil mass and manufacture and design oil mass distribution structure simultaneously.
Accompanying drawing explanation
Fig. 1 is this reaper multi-way valve embodiment one hydraulic schematic diagram.
Fig. 2 is 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 this reaper multi-way valve embodiment two hydraulic schematic diagram.
Fig. 6 is this reaper multi-way valve embodiment two perspective view.
Fig. 7 is 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, 1, the first oiling valve piece; 1a, the first oil suction chamber; 2, ceding of Taiwan valve piece; 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 piece; 3a, the second oil suction chamber; 4, switching valve piece; 4a, turn to main passage; 4b, turn to oil inlet passage; 5, dial standing grain valve piece; 5a, group standing grain main passage; 5b, group standing grain oil inlet passage; 6, unloading valve piece; 6a, unloading main passage; 6b, unloading oil inlet passage; 7, scavenger valve piece; 8, bolt and nut.
Embodiment
Be below specific embodiments of the invention 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 piece 1, ceding of Taiwan valve piece 2, dials standing grain valve piece 5 and scavenger valve piece 7.Above-mentioned four valve pieces are by the first oiling valve piece 1, ceding of Taiwan valve piece 2, group standing grain valve piece 5 and scavenger valve piece 7 successively folded establishing, and above-mentioned four valve pieces are fixedly connected with by bolt and nut 8.
The first oiling valve piece 1 has the first oil suction chamber 1a.Ceding of Taiwan valve piece 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 and ceding of Taiwan oil inlet passage 2c are connected.Dial standing grain valve piece 5 and there is the standing grain spool of dialling, dial standing grain main passage 5a and dial standing grain oil inlet passage 5b; Dial standing grain main passage 5a and dial standing grain oil inlet passage 5b and be connected.A port of ceding of Taiwan main passage 2b is connected with the first oil suction chamber 1a, and a port of 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 piece 2 is arranged in parallel with the working oil path of dialling standing grain valve piece 5.This multi-way valve also comprises can control the oil mass distribution structure that enters group standing grain main passage 5a inner fluid amount of dialling standing grain valve piece 5 when ceding of Taiwan spool 2a all moves.By oil mass distribution structure is set, guarantee that a large amount of fluid enters ceding of Taiwan oil inlet passage 2c, guaranteed ceding of Taiwan action; Fraction fluid enters dials standing grain oil inlet passage 5b, also can guarantee 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 piece 2 comprises valve body 2d, and it is upper that ceding of Taiwan main passage 2b is opened in 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 and are followed successively by logical oil pocket one 2b1, logical oil pocket two 2b2, logical oil pocket three 2b3 with respect to the axis of ceding of Taiwan spool 2a; Logical oil pocket one 2b1 and logical oil pocket three 2b3 are all connected with the first oil suction chamber 1a of the first oiling valve piece 1; A port of dialling standing grain main passage 5a is connected with logical oil pocket two 2b2.On ceding of Taiwan spool 2a outer side surface, have the logical oil groove 2e of the first annular that makes logical oil pocket one 2b1 be connected with logical oil pocket two 2b2 and the logical oil groove 2f of the second annular that logical oil pocket three 2b3 are connected with logical oil pocket two 2b2 when ceding of Taiwan spool 2a is positioned at meta.On ceding of Taiwan spool 2a, be 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 to lead to oil pocket three 2b3 and is connected with logical oil pocket two 2b2 when ceding of Taiwan spool 2a is positioned at that throttle orifice 2g made logical oil pocket one 2b1 be connected with logical oil pocket two 2b2 and work as ceding of Taiwan spool 2a and be positioned at right left when position.
In valve body 2d, also have work oil duct 2h and drainback passage 2i, on work oil duct 2h, be in series with one-way valve 2j, in valve body 2d, be provided with and can remove the unlocking structure that one-way valve 2j one-way flow refluxes fluid.Unlocking structure comprises the slide bar chamber and the pressure oil duct 2k that are positioned at valve body 2d, is provided with slide bar 2m in axial sliding in slide bar chamber, 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 ceding of Taiwan spool 2a of ceding of Taiwan valve piece 2, further introduce function and the advantage of this reaper multi-way valve: the ceding of Taiwan spool 2a of ceding of Taiwan valve piece 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 in cut-off state, avoids the fluid in executive component to reflux under spring force effect; 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 are 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 piece 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 being 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 are 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 entering in logical oil pocket two 2b2; In other words, control and enter the oil mass of dialling in standing grain main passage.
When the ceding of Taiwan spool 2a of ceding of Taiwan valve piece 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 is returned and stays from the port of work oil duct 2h by one-way valve 2j, until discharge from drainback passage 2i; In other words, the fluid that is 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 are in cut-off state, and logical oil pocket three 2b3 are connected by throttle orifice 2g with logical oil pocket two 2b2.
Embodiment two
The present embodiment is basic identical with embodiment one structure and principle, and different place is: as shown in Figures 5 to 9, this reaper multi-way valve also comprises switching valve piece 4, unloading valve piece 6 and the second oiling valve piece 3.Above-mentioned seven valve pieces are by the first oiling valve piece 1, ceding of Taiwan valve piece 2, the second oiling valve piece 3, switching valve piece 4, group standing grain valve piece 5, unloading valve piece 6 and scavenger valve piece 7 successively folded establishing.Between switching valve piece 4, group standing grain valve piece 5 and unloading valve piece 6 these three valve pieces, position can be exchanged mutually.
Switching valve piece 4 has the main passage of turning to 4a and turns to oil inlet passage 4b.Unloading valve piece 6 has unloading main passage 6a and unloading oil inlet passage 6b.The second oiling valve piece 3 has the second oil suction chamber 3a.
Logical oil pocket two 2b2 of ceding of Taiwan main passage 2b are connected with the second oil suction chamber 3a.The unloading main passage 6a that dials standing grain main passage 5a, unloading valve piece 6 that turns to main passage 4a, group standing grain valve piece 5 of switching valve piece 4 is communicated with successively.The main passage 4a that turns to of switching valve piece 4 is connected with the second oil suction chamber 3a.Unloading oil inlet passage 6b, group standing grain oil inlet passage 5b that dials standing grain valve piece 5, the unloading oil inlet passage 6b of unloading valve piece 6 of switching valve piece 4 are all connected with the second oil suction chamber 3a.
Embodiment three
The present embodiment is basic identical with embodiment one structure and principle, 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 piece 2 is in right when position, the action of control electromagnet, and then drive push rod to move and promote the spool of one-way valve 2j, force one-way valve 2j to open; Therefore fluid can reflux by one-way valve 2j.
Embodiment four
The present embodiment is basic identical with embodiment one structure and principle, and different place is: oil mass distribution structure comprises being connected on dials the throttling control valve that a port of standing grain main passage 5a and the another port of ceding of Taiwan main passage 2b are connected in oil circuit.Throttling control valve is between ceding of Taiwan valve piece 2 and the second oiling valve piece 3.
Claims (10)
1. a reaper multi-way valve, comprise ceding of Taiwan valve piece (2) and dial standing grain valve piece (5), it is characterized in that, this multi-way valve also comprises the first oiling valve piece (1) with the first oil suction chamber (1a), and described ceding of Taiwan valve piece (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) and ceding of Taiwan oil inlet passage (2c) are connected, and dial standing grain valve piece (5) and have the standing grain spool of dialling, dial standing grain main passage (5a) and dial standing grain oil inlet passage (5b); One port of ceding of Taiwan main passage (2b) is connected with the first oil suction chamber (1a), dials a port of standing grain main passage (5a) and dial standing grain oil inlet passage (5b) to be all connected with the another port of ceding of Taiwan main passage (2b); This multi-way valve also comprises can control the oil mass distribution structure that enters group standing grain oil inlet passage (5b) the inner fluid amount of dialling standing grain valve piece (5) when ceding of Taiwan spool (2a) moves.
2. reaper multi-way valve according to claim 1, is characterized in that, described reaper multi-way valve also comprises switching valve piece (4) and unloading valve piece (6); Switching valve piece (4) has the main passage of turning to (4a) and turns to oil inlet passage (4b); Unloading valve piece (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) and unloading main passage (6a) and be connected successively; Turn to oil inlet passage (4b) and unloading oil inlet passage (6b) to be all 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, between described ceding of Taiwan valve piece (2) and group standing grain valve piece (5), be provided with the second oiling valve piece (3) with the second oil suction chamber (3a), 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), group standing grain oil inlet passage (5b) unloading oil inlet passage (6b) to be all connected with the second oil suction chamber (3a).
4. according to the reaper multi-way valve described in claim 1 or 2 or 3, it is characterized in that, described ceding of Taiwan valve piece (2) comprises valve body (2d), and it is upper that ceding of Taiwan main passage (2b) is opened in 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 and are followed successively by logical oil pocket one (2b1), logical oil pocket two (2b2), logical oil pocket three (2b3) with respect to the axis of ceding of Taiwan spool (2a); Logical oil pocket one (2b1) and logical oil pocket three (2b3) are all connected with first oil suction chamber (1a) of the first oiling valve piece (1); Dial a port of standing grain main passage (5a) and dial standing grain oil inlet passage (5b) and be all connected with logical oil pocket two (2b2); Oil mass distribution structure comprises being positioned at ceding of Taiwan spool (2a) above and when ceding of Taiwan spool (2a) is positioned at left position, making to lead to oil pocket one (2b1) and is connected with logical oil pocket two (2b2) and works as the throttle orifice (2g) that when ceding of Taiwan spool (2a) is positioned at right position, logical oil pocket three (2b3) is connected with logical oil pocket two (2b2).
5. reaper multi-way valve according to claim 4, it is characterized in that, on described ceding of Taiwan spool (2a) outer side surface, have and when ceding of Taiwan spool (2a) is positioned at meta, make the first annular that logical oil pocket one (2b1) is connected with logical oil pocket two (2b2) lead to oil groove (2e) and make to lead to the logical oil groove (2f) of the second annular that 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, in described valve body (2d), have work oil duct (2h), on described work oil duct (2h), be in series with one-way valve (2j), in valve body (2d), be provided with the unlocking structure that can remove 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 the pressure oil duct (2k) that are positioned at valve body (2d), in slide bar chamber, be provided with 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 being connected on dials the throttling control valve that a port of standing grain main passage (5a) and the another port of ceding of Taiwan main passage (2b) are 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 piece (2) and the second oiling valve piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410035887.8A CN103727267B (en) | 2014-01-24 | 2014-01-24 | Reaper multi-way valve |
Applications Claiming Priority (1)
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| CN104454738A (en) * | 2014-12-22 | 2015-03-25 | 浙江海宏液压科技股份有限公司 | Agriculture machine control valve |
| CN104454722A (en) * | 2014-10-29 | 2015-03-25 | 浙江阿凡特精密设备制造有限公司 | Hydraulic multi-way valve |
| CN107420367A (en) * | 2017-09-26 | 2017-12-01 | 浙江海宏液压科技股份有限公司 | A kind of harvester hand control valve |
| CN107620812A (en) * | 2017-10-30 | 2018-01-23 | 圣邦集团有限公司 | A kind of banked direction control valves 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 |
| CN108930679A (en) * | 2017-05-27 | 2018-12-04 | 江苏沃得农业机械有限公司 | A kind of synchronous valve turned to for controlling harvester with taiwan cut off and landing |
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| CN104454722A (en) * | 2014-10-29 | 2015-03-25 | 浙江阿凡特精密设备制造有限公司 | Hydraulic multi-way valve |
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| CN108930679A (en) * | 2017-05-27 | 2018-12-04 | 江苏沃得农业机械有限公司 | A kind of synchronous valve turned to for controlling harvester with taiwan cut off and landing |
| CN107420367A (en) * | 2017-09-26 | 2017-12-01 | 浙江海宏液压科技股份有限公司 | A kind of harvester hand control valve |
| CN107620812A (en) * | 2017-10-30 | 2018-01-23 | 圣邦集团有限公司 | A kind of banked direction control valves with valve rod interlocking positioning function |
| 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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