CN105276279B - The integrated inserting combination valve of pilot-type two-port with position detection - Google Patents
The integrated inserting combination valve of pilot-type two-port with position detection Download PDFInfo
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- CN105276279B CN105276279B CN201510437404.1A CN201510437404A CN105276279B CN 105276279 B CN105276279 B CN 105276279B CN 201510437404 A CN201510437404 A CN 201510437404A CN 105276279 B CN105276279 B CN 105276279B
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of integrated inserting combination valve of the pilot-type two-port with position detection, it includes spool position detector, pilot valve, main valve control loop, check valve, work oil ducts headstock gear；The main valve control loop contains main valve body, piston, bushing, and check valve is made up of spring base, spring, valve element, sealing ring, valve seat, and work oil ducts headstock gear is made up of transit joint, poppet valve core, sleeve, stage clip and press spring base, connecting rod.Advantages of the present invention：The connecting rod of the present invention, poppet valve core, piston use split type connection Combination Design, make the structure of valve more compact, while reduce the processing request and manufacturing cost of valve.The setting of inclined hole allows enough control fluid to quickly fill with the bottom surface of piston on piston only, improves the responding ability of valve.The control border structure that poppet valve core cup-shaped outer rim improves valve in contraction-like and bottom the conical surface greatly reduces valve in hydraulic shock caused by keying, and the harm of hydraulic shock is reduced into minimum.
Description
Technical field：
The present invention relates to a kind of system by fluid movement, more particularly, to a kind of pilot-type two-port with position detection
Integrated inserting combination valve.
Background technology：
In the prior art, pilot-type two-port inserting combination valve is connected with two-way plug-in valve and formed by pilot valve, check valve,
The opening and closing of two-way plug-in valve is guided by the action of pilot valve.Because structure limits, ensureing the same guiding of two-way plug-in valve
Area, the flow that existing pilot-type two-port inserting combination valve passes through are smaller so that and under the higher occasion of flow, pressure drop is big,
Heating is high.The weak point of this structure type is that degree of integration is low, and the connection between each valve need to rely on external pipe connection, no
It is only bulky, and pipeline flow resistance is big, crushing is big, because tie point excessively causes the possibility of seepage also to greatly increase.Especially
It is in the systems such as injection machine, rubber forming machine and Die-casting Machines, not only fluid strides forward towards high pressure, big flow direction, also right
The security of equipment proposes higher requirement.It is required that being active in one's movements, reacting fast, adaptation high pressure, big flow, crushing are small, integrate
Change height, small volume, safe and reliable all kinds of hydraulic valves.Obviously, existing pilot-type two-port inserted valve can not meet market
Demand, have much room for improvement.
The content of the invention：
The purpose of the present invention is to provide a kind of opening and closing response soon for prior art weak point, big by flow, collection
The high integrated inserting combination valve of the pilot-type two-port with position detection of Cheng Hua, standardization level.
The purpose of the present invention is realized by following measures：A kind of integrated inserting of the pilot-type two-port with position detection is multiple
Valve is closed, it includes spool position detector, pilot valve, it is characterised in that：Also main valve control loop, check valve, working oil
Road headstock gear；Wherein：
The main valve control loop contains main valve body (3), piston (4), bushing (5)；Wherein：
The axle center of the main valve body (3) is provided with the cavity (6) of the up/down perforation for piston sliding, the upper/lower terminal of cavity
It is respectively equipped with the internal thread (7) of fittings body (64) connection for installation spool position detector (1), is connected with transit joint (45)
Internal thread (8), the interlude of cavity is provided with annular oil-recovery tank (9), annular guiding oil groove (10), and the lower surface of main valve body is provided with
Oily access aperture (11), oil return is controlled to portal (12), the second cavity (13) for installing check valve；Second cavity (13) it is interior
Wall is provided with annular oil groove (14), annular seal groove (15), and the orifice end of the second cavity (13) is provided with connection screw thread (16)；Main valve
Oilhole (17) of one side wall of body (3) provided with the screw hole for installation pilot valve (2) and connection pilot valve (2) oil inlet P chamber,
The oilhole (18) of actuator port A chambers, the oilhole (19) of oil return inlet T chamber, oily access aperture (11) place of control are provided with oil-feed oil duct
(20), oil-feed oil duct (20) bifurcates：One branch road leads to the annular oil groove (14) of the second cavity (13) by oil duct (74)；
Another branch road leads directly to the internal thread (7) of main valve body (3) cavity (6), and the oil return (12) place of portalling is logical provided with oil duct (21)
Toward the annular oil-recovery tank (9) of cavity (6), annular oil-recovery tank (9) is provided with the oilhole that oil duct (22) leads to the side wall of main valve body one
(19), second cavity (13) is provided with the oilhole (17) that oil duct (23) leads to the side wall of main valve body one, the annular guiding of cavity (6)
Oil groove (10) is provided with the oilhole (18) that oil duct (24) leads to the side wall of main valve body one；
For the piston (4) containing body, oil inlet passage, drainback passage, body is in step-like concentric big cylinder
(25), small cylinder (26), big cylinder (25) outer rim, small cylinder (26) outer rim are interior with main valve body (3) cavity (6) respectively
Wall, the inwall of bushing (5) are in contact, and body is provided with the footpath of the axially extending bore and fixed connecting rod (29) for connecting rod (29) insertion
To through hole (34), the upper end of axially extending bore is provided with seal groove (30), and the interlude of axially extending bore is provided with first annular groove (31),
The lower end of axially extending bore is provided with seal groove (32), the support shaft shoulder (33), and the oil inlet passage is to be laid on big cylinder (25)
Some ducts (27) put, each duct (27) communicate with the annular guiding oil groove (10) of main valve body (3), and each duct (27) passes through
Inclined hole (28) on body leads to the bottom surface of piston (4), the drainback passage be first annular groove (31), with it is first annular recessed
Radial hole (35) that groove (31) communicates, the annular oil-recovery tank (9) of main valve body (3)；
The check valve is made up of spring base (36), spring (37), valve element (38), sealing ring (39), valve seat (40), institute
State and set through hole (41) at spring base (36) axle center, its former is evenly equipped with some oilholes (42), set at valve seat (40) axle center logical
Hole (43), through hole are stepped, be major diameter close to the through hole of valve seat end face, and the through hole of remote valve seat end face is minor diameter, valve
Seat outer rim is provided with annular groove at annular oil groove (14) place of corresponding second cavity (13), and the radial equipartition of annular groove has some
Oilhole (44), the external end edge of valve seat are provided with connection screw thread；The spring base (36), spring (37), valve element (38), sealing ring
(39), valve seat (40) is sequentially placed into the second cavity (13) of main valve body (3), and valve seat is screwed at second by external end edge
In cavity, the radial direction oil hole of valve seat is located at annular oil groove (14) place of the second cavity；
The work oil ducts headstock gear is by transit joint (45), poppet valve core (46), sleeve (47), stage clip (48) and pressure
Spring abutment (49), connecting rod (29) composition, wherein：
Transit joint (45) upper end outer rim is provided with external screw thread corresponding with main valve body (3) cavity (6) internal thread (8),
Transit joint (45) axle center is provided with slides and accommodates press spring base (49) and stage clip (48), the rank of sleeve (47) for connecting rod (29)
Ladder type cavity, the cavity inner wall of receiving sleeve (47) are provided with the positioning wire groove of fixes sleeve；
The sleeve (47) is in hollow form, and the inserting paragraph outer rim of sleeve insertion transit joint (45) is provided with corresponding position
Positioning wire groove, overhanging section of sleeve (47) is provided with radially uniform some work oilholes (50), under sleeve (47) hollow form
Port is provided with shoulder shape valve seat (51), work oil export (52)；
The poppet valve core (46) is cup-shaped, and its outer rim cylinder is in contact with the hollow form inwall of sleeve (47), outer rim post
Face is provided with balancing slit, and cup-shaped outer rim lower end is in contraction-like, and cup like bottom is provided with cone disc valve face (53), and cup-shaped inner chamber, which is provided with, to hold
Receive the staged cavity of the heads of connecting rod (29), press spring base (49) and stage clip (48), accommodate the cavity of connecting rod (29) head
Inwall is provided with steel wire trough on correspondence position；
The connecting rod (29) is made up of head, shaft, and head, which is provided with connection, makes what spool position detector (1) opened and closed
The internal thread of induction rod (58), shaft are provided with connecting hole (57), to taking on service jobs in corresponding piston (4) radial direction through hole (34) corresponding position
Steel wire trough (59) is provided with plug (4) the support shaft shoulder, is provided with spacing inclined-plane (69) in head and shaft junction, and shaft is provided with oil return
Through hole (54), the radial hole (56) communicated with the first annular groove (31) of piston (4) and sleeve (47), transit joint (45)
The radial hole (55) that the inner chamber formed with poppet valve core (46) communicates；
The connecting rod (29) head insertion poppet valve core (46) staged cavity bottom, and by grommet (99), insert
Enter the axial movement that the elastic spring (60) in the steel wire trough of poppet valve core staged cavity places restrictions on connecting rod, press spring base (49) and
Stage clip (48) is put into the staged cavity of poppet valve core (46) staged cavity, transit joint (45), compression press spring (48), will
The axial movement of sleeve (47) is placed restrictions on corresponding to elastic spring (61) insertion sleeve (47) and transit joint (45) in steel wire trough,
Make poppet valve core (46) bore disc valve face (53) simultaneously to be in close contact with sleeve (47) hollow form lower port shoulder shape valve seat (51),
It is protruding that the shaft of connecting rod (29) wears transit joint；
The joint screw thread section of the fittings body of the spool position detector (1) goes out in corresponding main valve body internal thread (7) oil duct
The radial hole for opening up annular oil groove at mouthful and communicating therewith；
The work oil ducts headstock gear is provided with elastic spring at steel wire trough (59) place of connecting rod (29) shaft outer rim
(75) fixed position of piston (4) is supported, piston (4) is fixed in connecting rod by spring catch (62) and steady pin (63), work
The transit joint (45) for making oil duct headstock gear is screwed into the internal thread (8) of main valve control loop main valve body (3) cavity (6) lower end
Interior, the bushing (5) of main valve control loop is placed in the upper end of main valve body (3) cavity (6), opens and closes spool position detector (1)
Induction rod (58) be threadedly attached in the shaft head internal thread of connecting rod (29), spool position detector (1) connects
Head body (64) is screwed into the internal thread (7) of main valve control loop main valve body (3) cavity (6) upper end, and the oil duct on internal thread (7) goes out
Mouth communicates with the annular oil groove of spool position detector (1) fittings body (64), and pilot valve (2) is fixed by screws in main valve body
In one side wall.
Compared with prior art, it is compound to employ the integrated inserting of the pilot-type two-port with position detection proposed by the present invention
Valve, have the following advantages that：1) connecting rod of the invention, poppet valve core, piston use split type connection Combination Design, make the knot of valve
Structure is more compact, while reduces the processing request and manufacturing cost of valve.The setting of inclined hole allows enough control on piston only
Fluid quickly fills with the bottom surface of piston, improves the responding ability of valve.Poppet valve core cup-shaped outer rim is in contraction-like and bottom cone
The control border structure that face improves valve greatly reduces valve in hydraulic shock caused by keying, reduces crushing, it would be possible to produce
The harm of raw hydraulic shock is reduced to minimum degree.2) present invention opens and closes dress in main valve control loop, check valve, work oil ducts
Pressure is significantly reduced to increase the structure of circulation area using annular groove and uniform radial hole at the oil duct conversion put
Damage, improve the responding ability of valve, increasing fluid handling capacity serves critical effect；3) main valve control loop of the present invention
Piston be provided with oil inlet passage and drainback passage, the control oil duct of main valve body is simplified, for the minimizing of product, integrated offer
May；4) one-way valve structures of the invention are improved, and the handling capacity of increase, are reduced pressure drop, are improved the sound of valve
Should be able to power, while play guiding control pilot valve design and installation in the side of main valve body.So the overall volume of valve is significantly
Reduce, weight saving, cost reduces, energy-conserving and environment-protective, and control is flexible, performance boost.The present invention achieves compared with conventional art
Breakthrough progress.
Brief description of the drawings：
Fig. 1 is one embodiment overall structure diagram proposed by the present invention.
Fig. 2 is the schematic diagram of Fig. 1 embodiments main valve body and guiding valve mounting surface.
Fig. 3 is the schematic diagram of Fig. 1 embodiments main valve body and work oil ducts headstock gear mounting surface.
Fig. 4 is Fig. 3 A-A profiles.
Fig. 5 is Fig. 1 embodiment one-way valve structures schematic diagrames.
Fig. 6 is Figure 1B portions enlarged drawing.
Fig. 7 is Figure 1A portions enlarged drawing.
Embodiment：
Embodiment is elaborated below in conjunction with the accompanying drawings：Fig. 1~Fig. 7 shows the implementation of the present invention
Example.In figure, a kind of integrated inserting combination valve of the pilot-type two-port with position detection, it includes：Spool position detector 1, lead
Draw valve 2, main valve control loop, check valve, work oil ducts headstock gear；Wherein：
The main valve control loop contains main valve body (3), piston (4), bushing (5)；Wherein：
The axle center of the main valve body (3) is provided with the cavity (6) of the up/down perforation for piston sliding, the upper/lower terminal of cavity
It is respectively equipped with the internal thread (7) of fittings body (64) connection for installation spool position detector (1), is connected with transit joint (45)
Internal thread (8), the interlude of cavity is provided with annular oil-recovery tank (9), annular guiding oil groove (10), and the lower surface of main valve body is provided with
Oily access aperture (11), oil return is controlled to portal (12), the second cavity (13) for installing check valve；Second cavity (13) it is interior
Wall is provided with annular oil groove (14), annular seal groove (15), and the orifice end of the second cavity (13) is provided with connection screw thread (16)；Main valve
Oilhole (17) of one side wall of body (3) provided with the screw hole for installation pilot valve (2) and connection pilot valve (2) oil inlet P chamber,
The oilhole (18) of actuator port A chambers, the oilhole (19) of oil return inlet T chamber, oily access aperture (11) place of control are provided with oil-feed oil duct
(20), oil-feed oil duct (20) bifurcates：One branch road leads to the annular oil groove (14) of the second cavity (13) by oil duct (74)；
Another branch road leads directly to the internal thread (7) of main valve body (3) cavity (6).The oil return (12) place of portalling is logical provided with oil duct (21)
Toward the annular oil-recovery tank (9) of cavity (6), annular oil-recovery tank (9) is provided with the oilhole that oil duct (22) leads to the side wall of main valve body one
(19), second cavity (13) is provided with the oilhole (17) that oil duct (23) leads to the side wall of main valve body one, the annular guiding of cavity (6)
Oil groove (10) is provided with the oilhole (18) that oil duct (24) leads to the side wall of main valve body one.
For the piston (4) containing body, oil inlet passage, drainback passage, body is in step-like concentric big cylinder
(25), small cylinder (26), big cylinder (25) outer rim, small cylinder (26) outer rim are interior with main valve body (3) cavity (6) respectively
Wall, the inwall of bushing (5) are in contact, and body is provided with the footpath of the axially extending bore and fixed connecting rod (29) for connecting rod (29) insertion
To through hole (34), the upper end of axially extending bore is provided with seal groove (30), and the interlude of axially extending bore is provided with first annular groove (31),
The lower end of axially extending bore is provided with seal groove (32), the support shaft shoulder (33), and the oil inlet passage is to be laid on big cylinder (25)
Some ducts (27) put, each duct (27) communicate with the annular guiding oil groove (10) of main valve body (3), and each duct (27) passes through
Inclined hole (28) on body leads to the bottom surface of piston (4), the drainback passage be first annular groove (31), with it is first annular recessed
Radial hole (35) that groove (31) communicates, the annular oil-recovery tank (9) of main valve body (3).
The main valve control loop of the present invention mainly undertakes to be opened with spool position detector, pilot valve, check valve, work oil ducts
The connection of device is closed, because the component being related to is more, if can certainly be complete by circuit board by all oil circuits of traditional design
Into task, but whole device volume can become very huge, and the flow resistance loss of pipeline can also increase, and the responding ability of valve weakens.
Part oil duct is transferred on piston by the present invention, and the oil duct in main valve body mainly undertakes to be connected with the component of outside, piston
Action completed by the oil duct of piston itself, achieve unexpected effect, for the minimizing of product, integrated provide
May.In addition, the inclined hole that the big face of cylinder of piston is set, allows enough control fluid to quickly fill with the bottom surface of piston, improves valve
Responding ability.
The check valve is made up of spring base (36), spring (37), valve element (38), sealing ring (39), valve seat (40), institute
State and set through hole (41) at spring base (36) axle center, its former is evenly equipped with some oilholes (42), set at valve seat (40) axle center logical
Hole (43), through hole are stepped, be major diameter close to the through hole of valve seat end face, and the through hole of remote valve seat end face is minor diameter, valve
Seat outer rim is provided with annular groove at annular oil groove (14) place of corresponding second cavity (13), and the radial equipartition of annular groove has some
Oilhole (44), the external end edge of valve seat are provided with connection screw thread；The spring base (36), spring (37), valve element (38), sealing ring
(39), valve seat (40) is sequentially placed into the second cavity (13) of main valve body (3), and valve seat is screwed at second by external end edge
In cavity, the radial direction oil hole of valve seat is located at annular oil groove (14) place of the second cavity.The present invention is carried out to the structure of check valve
Improvement, the annular oil groove of the second cavity and the annular groove of valve seat increase the inflow area of fluid, and spring base former is evenly equipped with
Some oilholes also increase the outflow area of fluid, effectively reduce restriction loss.The valve seat increase of check valve, is also beneficial to
Improve the responding ability of valve.
The work oil ducts headstock gear is by transit joint (45), poppet valve core (46), sleeve (47), stage clip (48) and pressure
Spring abutment (49), connecting rod (29) composition, wherein：
Transit joint (45) upper end outer rim is provided with external screw thread corresponding with main valve body (3) cavity (6) internal thread (8),
Transit joint (45) axle center is provided with slides and accommodates press spring base (49) and stage clip (48), the rank of sleeve (47) for connecting rod (29)
Ladder type cavity, the cavity inner wall of receiving sleeve (47) are provided with the positioning wire groove of fixes sleeve.
The sleeve (47) is in hollow form, and the inserting paragraph outer rim of sleeve insertion transit joint (45) is provided with corresponding position
Positioning wire groove, overhanging section of sleeve (47) is provided with radially uniform some work oilholes (50), under sleeve (47) hollow form
Port is provided with shoulder shape valve seat (51), work oil export (52).Transit joint is determined with sleeve by what both sides were set in this structure
Position steel wire trough insertion positioning wire is connected to one, and its inner chamber is to accommodate spring, press spring base, poppet valve core, connecting rod
Space.
The poppet valve core (46) is cup-shaped, and its outer rim cylinder is in contact with the hollow form inwall of sleeve (47), outer rim post
Face is provided with balancing slit, and cup-shaped outer rim lower end is in contraction-like, and cup like bottom is provided with cone disc valve face (53), and cup-shaped inner chamber, which is provided with, to hold
Receive the staged cavity of the heads of connecting rod (29), press spring base (49) and stage clip (48), accommodate the cavity of connecting rod (29) head
Inwall is provided with steel wire trough on correspondence position.
The connecting rod (29) is made up of head, shaft, and head, which is provided with connection, makes what spool position detector (1) opened and closed
The internal thread of induction rod (58), shaft are provided with connecting hole (57), to taking on service jobs in corresponding piston (4) radial direction through hole (34) corresponding position
Steel wire trough (59) is provided with plug (4) the support shaft shoulder, is provided with spacing inclined-plane (69) in head and shaft junction, and shaft is provided with oil return
Through hole (54), the radial hole (56) communicated with the first annular groove (31) of piston (4) and sleeve (47), transit joint (45)
The radial hole (55) that the inner chamber formed with poppet valve core (46) communicates.
The connecting rod (29) head insertion poppet valve core (46) staged cavity bottom, and by grommet (99), insert
Enter the axial movement that the elastic spring (60) in the steel wire trough of poppet valve core staged cavity places restrictions on connecting rod, press spring base (49) and
Stage clip (48) is put into the staged cavity of poppet valve core (46) staged cavity, transit joint (45), compression press spring (48), will
The axial movement of sleeve (47) is placed restrictions on corresponding to elastic spring (61) insertion sleeve (47) and transit joint (45) in steel wire trough,
Make poppet valve core (46) bore disc valve face (53) simultaneously to be in close contact with sleeve (47) hollow form lower port shoulder shape valve seat (51),
It is protruding that the shaft of connecting rod (29) wears transit joint.The connection of connecting rod and poppet valve core is using grommet, steel in this structure
Silk back-up ring is simultaneously spacing by spacing inclined-plane, on the one hand can prevent the axial float caused by mismachining tolerance, on the other hand form hinge
Latch structure, the structure energy automatic centering, improve the force-bearing situation of connecting rod.Piston, connecting rod, the poppet valve core of the present invention is adopted
With split type connection Combination Design, the manufacturing cost that the structure of valve is more compact, reduces valve is made.The structure ensure that poppet valve
The opening of core is sufficiently large, and there are enough guiding areas the bottom surface for not influenceing piston.In this structure, the pressure of poppet valve core outer rim
Groove can prevent the clamping stagnation of poppet valve.Poppet valve core cup-shaped outer rim improves the control border knot of valve in contraction-like and bottom the conical surface
Structure greatly reduces valve in hydraulic shock caused by keying, reduces crushing, it would be possible to which the harm of caused hydraulic shock is reduced
To minimum degree.
The joint screw thread section of the fittings body of the spool position detector (1) goes out in corresponding main valve body internal thread (7) oil duct
Annular oil groove and the radial hole communicated therewith are provided with mouthful.
The work oil ducts headstock gear is provided with elastic spring at steel wire trough (59) place of connecting rod (29) shaft outer rim
(75) fixed position of piston (4) is supported, piston (4) is fixed in connecting rod by spring catch (62) and steady pin (63).Steel
The fixed position of silk back-up ring support piston, it can be ensured that there are enough guiding areas piston bottom surface.Work oil ducts headstock gear
Transit joint (45) is screwed into the internal thread (8) of main valve control loop main valve body (3) cavity (6) lower end, main valve control loop
Bushing (5) is placed in the upper end of main valve body (3) cavity (6), the induction rod (58) that spool position detector (1) opens and closes is passed through spiral shell
Line is connected in the shaft head internal thread of connecting rod (29), and the fittings body (64) of spool position detector (1) is screwed into main valve control
In the internal thread (7) of loop main valve body (3) cavity (6) upper end processed, oil passage outlet and spool position detector on internal thread (7)
(1) annular oil groove of fittings body (64) is communicated, and pilot valve (2) is fixed by screws in a side wall of main valve body.
The present invention so works：
1) present invention is located at closed mode：
The poppet valve core (46) of work oil ducts headstock gear of the present invention is located on the valve seat (51) of sleeve (47), working oil
Can not flow out outlet (52) by poppet valve core, working oil by the control oil access aperture (11) of main valve control loop main valve body,
Two-way is divided into by oil-feed oil duct (20), a-road-through oil channel (74) enters in the annular oil groove (14) of check valve, pushes up opening one-way
Valve core (38), the oilhole (17) of the side wall of main valve body (3) one is entered by oil duct (23), flow to the oil inlet P of pilot valve (2)
Chamber, pilot valve (2) are closed, and working oil can not enter pilot valve (2)；Another way enters main valve by oil duct (23)
The internal thread (7) of body (3) cavity (6), then the effect of the annular oil groove for the fittings body for passing through spool position detector (1), radial hole
In the roundlet column end of main valve control loop piston (4), piston (4) is held motionless, connecting rod (29) position by the pressure of working oil
In in situ motionless, the induction rod (58) being connected with connecting rod (29) is also positioned in situ motionless, spool position detector not sender,
Judge that main valve is closed.
2) when the present invention activates to open：
Control device provides signal and opens pilot valve (2), and the oil inlet P chamber of working oil from pilot valve (2) is transferred to work
Hydraulic fluid port A chambers, oilhole (18), oil duct (24) through the side wall of main valve body (3) one enter the annular guiding oil groove (10) of main valve body (3),
Lead to piston (4) big cylindrical end through piston (4) mounting hole (27), inclined hole (28) again, act on the big cylindrical end of piston (4)
Working oil pressure is more than the working oil pressure of piston (4) roundlet column end, therefore promotes piston (4) to rise, and drives connecting rod
(29), poppet valve core is moved up so that oil inlet (50) is connected with oil-out (52), while connecting rod (29) rises drive valve
The sensory rod (58) of core position detector enters trigger signal position, and spool position detector judges that main valve is in normally-open
State.
3) when the present invention starts closing：
Control device provides signal-off pilot valve (2), and pilot valve (2) closes actuator port A chambers, cuts off piston (4) bottom
The working oil in portion, the oil pressure of piston small column end face are more than the oil pressure in the big cylindrical end face of piston (4), and piston (4) is descending, and order carries
Valve element (46) is descending to be in close contact with the valve seat of sleeve (47) (51) so that oil inlet (50) disconnects with oil-out (52), with this
Meanwhile connecting rod (29), sensory rod (58) leave spool position, detector valve element detector not sender, judge that main valve is in and close
Closed state.
No matter the piston that main valve controls back rises or falls, or valve internal leak, oil return can be all produced, oil return liquid can all converge
Combine in main valve body (3) cavity (6) annular oil-recovery tank (9), then unify to discharge by oil duct (21), oil return oilhole (12), here
Do not repeat one by one.
Embodiments of the present invention are described above in conjunction with accompanying drawing, the structure that embodiment provides is not formed to the present invention's
Limitation, those skilled in the art in the art make various deformations or amendments in protection model within the scope of the appended claims
In enclosing.
Claims (1)
1. a kind of integrated inserting combination valve of the pilot-type two-port with position detection, it includes spool position detector, pilot valve,
It is characterized in that：Also main valve control loop, check valve, work oil ducts headstock gear；Wherein：
The main valve control loop contains main valve body (3), piston (4), bushing (5)；Wherein：
The axle center of the main valve body (3) is provided with the cavity (6) of the up/down perforation for piston sliding, the upper/lower terminal difference of cavity
Internal thread (7) provided with fittings body (64) connection for installation spool position detector (1), be connected with transit joint (45) it is interior
Screw thread (8), the interlude of cavity are provided with annular oil-recovery tank (9), annular guiding oil groove (10), and the lower surface of main valve body is provided with control
Oily access aperture (11), oil return are portalled (12), the second cavity (13) for installing check valve；On the inwall of second cavity (13)
Provided with annular oil groove (14), annular seal groove (15), the orifice end of the second cavity (13) is provided with connection screw thread (16)；Main valve body
(3) a side wall is provided with oilhole (17), the work of the screw hole and connection pilot valve (2) oil inlet P chamber for installation pilot valve (2)
Make oilhole (18), the oilhole (19) of oil return inlet T chamber of hydraulic fluid port A chambers, oily access aperture (11) place of control is provided with oil-feed oil duct
(20), oil-feed oil duct (20) bifurcates：One branch road leads to the annular oil groove (14) of the second cavity (13) by oil duct (74)；Separately
One branch road leads directly to the internal thread (7) of main valve body (3) cavity (6), and the oil return (12) place of portalling leads to provided with oil duct (21)
The annular oil-recovery tank (9) of cavity (6), annular oil-recovery tank (9) are provided with the oilhole (19) that oil duct (22) leads to the side wall of main valve body one, institute
State the oilhole (17) that the second cavity (13) leads to the side wall of main valve body one provided with oil duct (23), the annular guiding oil groove of cavity (6)
(10) it is provided with the oilhole (18) that oil duct (24) leads to the side wall of main valve body one；
The piston (4) is containing body, oil inlet passage, drainback passage, and body is in step-like concentric big cylinder (25), small
Cylinder (26), big cylinder (25) outer rim, small cylinder (26) outer rim inwall, bushing with main valve body (3) cavity (6) respectively
(5) inwall is in contact, and body is provided with the radial direction through hole of the axially extending bore and fixed connecting rod (29) for connecting rod (29) insertion
(34), the upper end of axially extending bore is provided with seal groove (30), and the interlude of axially extending bore is provided with first annular groove (31), axially logical
The lower end in hole is provided with seal groove (32), the support shaft shoulder (33), the oil inlet passage be big cylinder (25) if on be uniformly arranged
Dry hole road (27), each duct (27) communicate with the annular guiding oil groove (10) of main valve body (3), and each duct (27) is by body
Inclined hole (28) lead to piston (4) bottom surface, the drainback passage be first annular groove (31), with first annular groove (31) phase
Logical radial hole (35), the annular oil-recovery tank (9) of main valve body (3)；
The check valve is made up of spring base (36), spring (37), valve element (38), sealing ring (39), valve seat (40), the spring
Seat (36) axle center at set through hole (41), its former is evenly equipped with some oilholes (42), set at valve seat (40) axle center through hole (43),
Through hole is stepped, and the through hole close to valve seat end face is major diameter, and the through hole away from valve seat end face is minor diameter, and valve seat outer rim exists
Annular oil groove (14) place of corresponding second cavity (13) is provided with the second annular groove, and the radial equipartition of the second annular groove has some
Oilhole (44), the external end edge of valve seat are provided with connection screw thread；The spring base (36), spring (37), valve element (38), sealing ring
(39), valve seat (40) is sequentially placed into the second cavity (13) of main valve body (3), and valve seat is screwed at second by external end edge
In cavity, the radial direction oil hole of valve seat is located at annular oil groove (14) place of the second cavity；
The work oil ducts headstock gear is by transit joint (45), poppet valve core (46), sleeve (47), stage clip (48) and press spring base
(49), connecting rod (29) forms, wherein：
Transit joint (45) upper end outer rim is provided with external screw thread corresponding with main valve body (3) cavity (6) internal thread (8), transition
Joint (45) axle center is provided with slides and accommodates press spring base (49) and stage clip (48), the staged sky of sleeve (47) for connecting rod (29)
Chamber, the cavity inner wall of receiving sleeve (47) are provided with the positioning wire groove of fixes sleeve；
The sleeve (47) is in hollow form, and the inserting paragraph outer rim of sleeve insertion transit joint (45) is provided with positioning at corresponding position
Steel wire trough, overhanging section of sleeve (47) are provided with radially uniform some work oilholes (50), sleeve (47) hollow form lower port
Provided with shoulder shape valve seat (51), work oil export (52)；
The poppet valve core (46) is cup-shaped, and its outer rim cylinder is in contact with the hollow form inwall of sleeve (47), and outer rim cylinder is set
There is balancing slit, cup-shaped outer rim lower end is in contraction-like, and cup like bottom is provided with cone disc valve face (53), and cup-shaped inner chamber, which is provided with, accommodates connection
The staged cavity of the head of bar (29), press spring base (49) and stage clip (48), the cavity inner wall for accommodating connecting rod (29) head exist
Correspondence position is provided with steel wire trough；
The connecting rod (29) is made up of head, shaft, and head is provided with the induction rod that connection opens and closes spool position detector (1)
(58) internal thread, shaft are provided with connecting hole (57) in corresponding piston (4) radial direction through hole (34) corresponding position, in corresponding piston (4)
Steel wire trough (59) is provided with the support shaft shoulder, is provided with spacing inclined-plane (69) in head and shaft junction, and shaft is provided with oil return through-hole
(54) radial hole (56) that, is communicated with the first annular groove (31) of piston (4), with sleeve (47), transit joint (45) and carrying
The radial hole (55) that the inner chamber that movable valve plug (46) is formed communicates；
Head insertion poppet valve core (46) staged cavity bottom of the connecting rod (29), and carried by grommet (99), insertion
Elastic spring (60) in the steel wire trough of movable valve plug staged cavity places restrictions on the axial movement of connecting rod, press spring base (49) and stage clip
(48) it is put into the staged cavity of poppet valve core (46) and transit joint (45) composition, by elastic spring (61) insertion sleeve
(47) axial movement of sleeve (47) and corresponding to transit joint (45) is placed restrictions in steel wire trough, while makes poppet valve core (46) circular cone
Face valve face (53) is in close contact with sleeve (47) hollow form lower port shoulder shape valve seat (51), and the shaft of connecting rod (29) passed through
It is protruding to cross joint；
The joint screw thread section of the fittings body of the spool position detector (1) is at corresponding main valve body internal thread (7) oil passage outlet
The radial hole for opening up annular oil groove and communicating therewith；
The work oil ducts headstock gear is provided with elastic spring (75) at steel wire trough (59) place of connecting rod (29) shaft outer rim
The fixed position of piston (4) is supported, piston (4) is fixed in connecting rod by spring catch (62) and steady pin (63), working oil
The transit joint (45) of road headstock gear is screwed into the internal thread (8) of main valve control loop main valve body (3) cavity (6) lower end, main
The bushing (5) of valve control loop is placed in the upper end of main valve body (3) cavity (6), the sensing for opening and closing spool position detector (1)
Bar (58) is threadedly attached in the shaft head internal thread of connecting rod (29), the fittings body of spool position detector (1)
(64) be screwed into the internal thread (7) of main valve control loop main valve body (3) cavity (6) upper end, the oil passage outlet on internal thread (7) with
The annular oil groove of spool position detector (1) fittings body (64) communicates, and pilot valve (2) is fixed by screws in the side of main valve body
On wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437404.1A CN105276279B (en) | 2015-07-23 | 2015-07-23 | The integrated inserting combination valve of pilot-type two-port with position detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437404.1A CN105276279B (en) | 2015-07-23 | 2015-07-23 | The integrated inserting combination valve of pilot-type two-port with position detection |
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| CN105276279A CN105276279A (en) | 2016-01-27 |
| CN105276279B true CN105276279B (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510437404.1A Active CN105276279B (en) | 2015-07-23 | 2015-07-23 | The integrated inserting combination valve of pilot-type two-port with position detection |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110701138B (en) * | 2019-10-25 | 2024-06-11 | 山东泰丰智能控制股份有限公司 | Novel structure capable of monitoring state of large-stroke hydraulic valve |
| CN113153853B (en) * | 2021-04-14 | 2023-05-16 | 中国中信有限公司 | Pipeline control device, valve body and liquid path control system for pile hammer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH664805A5 (en) * | 1982-01-16 | 1988-03-31 | Ebara Corp | PRESSURE REGULATOR AND OIL SUPPLY SYSTEM EQUIPPED WITH THIS. |
| JP3357624B2 (en) * | 1999-03-23 | 2002-12-16 | 豊興工業株式会社 | On-off valve |
| CN203363410U (en) * | 2013-07-15 | 2013-12-25 | 涌镇液压机械（上海）有限公司 | Valve core assembly for guide type two-way cartridge valve |
| CN203516293U (en) * | 2013-10-11 | 2014-04-02 | 涌镇液压机械（上海）有限公司 | Axial-type connecting structure for valve core position detector and electro-hydraulic directional valve |
| CN203548995U (en) * | 2013-11-08 | 2014-04-16 | 涌镇液压机械（上海）有限公司 | Improved electro-hydraulic reversing valve with valve element position sensor |
| CN204962003U (en) * | 2015-07-23 | 2016-01-13 | 涌镇液压机械（上海）有限公司 | Integrated cartridge combination valve of guide's formula bi -pass of taking position to detect |
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