CN104389831B - A kind of spool-type valves - Google Patents
A kind of spool-type valves Download PDFInfo
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- CN104389831B CN104389831B CN201410468869.9A CN201410468869A CN104389831B CN 104389831 B CN104389831 B CN 104389831B CN 201410468869 A CN201410468869 A CN 201410468869A CN 104389831 B CN104389831 B CN 104389831B
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- valve
- main valve
- pressing plate
- rotating shaft
- annular chamber
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Classifications
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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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- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
Abstract
A kind of spool-type valves, belongs to hydraulic efficiency slide valve, solves the problem that existing hydraulicdirectional control valve exists internal leakage.The present invention includes main valve, the first pilot valve, the second pilot valve, Shou Cao mechanism and electric coupler, first pilot valve and the second pilot valve are fixed on main valve upper surface, Shou Cao mechanism covers on the outside of the first pilot valve and the second pilot valve, and is fastened on main valve upper surface.The valve member of several functions integrates by the present invention, simplify hydraulic system, adopt two No leakage Solenoid ball valves as pilot valve, the commutation function of main valve is controlled, main valve inside is integrated with the parts such as dual hydraulic control one-way valve and main valve plug, the high pressure oil entering main valve is carried out No leakage and closes by dual hydraulic control one-way valve before entering main valve plug, the Combination application of guide's Solenoid ball valve and dual hydraulic control one-way valve, ensure that No leakage function, reduce added power dissipation when hydraulic system is run, improve the Security that hydraulic system is run.
Description
Technical field
The invention belongs to hydraulic efficiency slide valve, be specifically related to a kind of spool-type valves, for carrying out switching switching to the liquid stream of each branch road in hydraulic system, the flow direction of liquid stream in hydraulic control system.
Background technique
Hydraulicdirectional control valve is common component in hydraulic system, by means of changing the position of spool, realizes switching on and off between several oil circuits of being connected with valve body.Existing hydraulicdirectional control valve is generally sliding valve structure, spool and valve body (or valve pocket) are clearance seal, structure is simple, be easy to processing, but there is internal leakage, both reduced performance and the hydraulicefficiency of hydraulic system, brought again the problems such as system heating, internal leakage is excessive causes exterior operator misoperation sometimes, causes device damage and casualties time serious.In marine hydraulic system, for reducing energy consumption, hydraulic oil is avoided to produce unnecessary temperature rise, prevent the excessive misoperation caused of internal leakage, guarantee equipment and personal security, require flow indicator in selector valve in hydraulic system very strict, even require that selector valve is without internal leakage in some hydraulic system, so be badly in need of the domestic No leakage selector valve of development, to adapt to the requirement of marine hydraulic system and other special hydraulic system.
Summary of the invention
The invention provides a kind of spool-type valves, solve the problem that existing hydraulicdirectional control valve exists internal leakage, to improve system effectiveness, to reduce hydraulic pressure temperature rise, prevent external agency's misoperation.
A kind of spool-type valves provided by the present invention, comprise main valve, the first pilot valve, the second pilot valve, Shou Cao mechanism and electric coupler, first pilot valve and the second pilot valve are screwed at main valve upper surface, Shou Cao mechanism covers on the outside of the first pilot valve and the second pilot valve, and be fastened on main valve upper surface, it is characterized in that:
A, described main valve comprise main valve body, main valve plug, left spring seat, left spring, right spring seat, right spring and one-way valve, main valve body axially has main valve plug mounting hole parallel to each other and one-way valve mounting hole, be respectively used to install main valve plug and one-way valve, there are filler opening, return opening and A actuator port, B actuator port in main valve body bottom surface;
There is in described main valve plug mounting hole the first outwardly convex annular chamber, the second convex annular chamber, the 3rd convex annular chamber, the 4th convex annular chamber, the 5th convex annular chamber, the 6th convex annular chamber, the 7th convex annular chamber from left to right successively; 3rd convex annular chamber is communicated with the B actuator port of main valve body bottom surface, and the 4th convex annular chamber is communicated with the filler opening of main valve body bottom surface, and the 5th convex annular chamber is communicated with the A actuator port of main valve body bottom surface, and the 6th convex annular chamber is communicated with the return opening of main valve body bottom surface;
Described main valve plug is solid of rotation, and its surface has the first annular boss, the second annular boss, the 3rd annular boss, the 4th annular boss from left to right successively;
Described main valve plug is positioned at described main valve plug mounting hole, the left end of main valve plug is provided with left spring seat and left spring, the right-hand member of main valve plug is provided with right spring seat and right spring, first screw plug, the second screw plug respectively with described main valve plug mounting hole two ends screw-thread fit, be arranged on two ends, main valve plug left and right, close main valve plug mounting hole, and limit the stroke of main valve plug;
There is in described one-way valve mounting hole the first outwardly convex annular chamber, the second convex annular chamber, the 3rd convex annular chamber, the 4th convex annular chamber from left to right successively; First convex annular chamber is communicated with the filler opening of main valve body bottom surface, and the 4th convex annular chamber is communicated with the return opening of main valve body bottom surface by the duct in main valve body;
Described one-way valve is positioned at described one-way valve mounting hole, and described one-way valve is included in oil cylinder bonnet, cylinder tube, left piston, right piston, oil cylinder front cover, cone valve, poppet valve core, cone valve spring, the cone valve end cap installed successively from left to right in one-way valve mounting hole;
Described cylinder tube outer wall has three road annular grooves, and oil cylinder bonnet and oil cylinder front cover are respectively charged into the left and right end of cylinder tube, and left piston and right piston divide left and right be positioned at described cylinder tube and coordinate with cylinder tube clearance seal;
Described cone valve is cylindrical shape, its left end has circular valve port, cone valve outer wall has one annular groove, there is bottom annular groove the oil-through hole be uniformly distributed along the circumference, cone valve is built with the poppet spool valve be sealed and matched with its gap, poppet spool valve is the hollow cylinder that left end is closed, poppet spool valve outer wall has the oil through being communicated with interior space, poppet spool valve is built with cone valve spring, poppet spool valve left part is conical, coordinate with the circular valve port of described cone valve and form sealing surface, cone valve end cap loads cone valve right-hand member and withstands described cone valve spring; The piston rod of described right piston is through oil cylinder front cover and circular valve port; 3rd screw plug, the 4th screw plug respectively with described one-way valve mounting hole two ends screw-thread fit, be arranged on two ends, one-way valve left and right, closed check valve mounting hole;
B, described first pilot valve are identical with the second pilot valve structure, separately by shell, wire board, lining, armature, upper steel ball, coil, middle ball seat, lower steel ball, lower ball base, lower spring, bottom, upper ball base, coil carrier, gland, upper spring, push rod composition;
Described shell is cylindrical shape, and its top has central through bore; Described coil winding is on coil carrier, coil carrier is enclosed within lining, described lining is cylindrical shape, there is in its barrel the axial spill port and work oilhole that are communicated with endoporus, the endoporus of lining is provided with lower ball base, middle ball seat, upper ball base and armature from bottom to top successively, described armature is the cylindrical body with axial oilhole, and its bottom end center has boss; Have the cylindrical body of axial circular hole centered by described middle ball seat, the upper aperture of axial circular hole, lower aperture are respectively as upper valve port and lower valve port, and middle ball seat sidewall has the radial direction oil hole being communicated with described axial circular hole; Described upper ball base center hole is built-in with movable upper steel ball, and the boss of described armature stretches into upper ball base center hole to upper steel-ball limiting, and upper steel ball and upper valve port coordinate formation sealing surface; Described lower ball base center hole is built-in with movable lower steel ball; After described lining upper end loads gland, load in shell from described shell bottom together with coil is overall, bottom is connected by screw in described shell bottom, withstands described lower ball base by lower spring, and lower steel ball and lower valve port coordinate formation sealing surface; Described bottom center has pressure oil port P1, and pressure oil port P1 both sides have oil return inlet T 1 and actuator port A1, and described oil return inlet T 1 and actuator port A1 are communicated with the oilhole that works with the spill port on lining respectively;
Described gland has central through bore, penetrate from the central through bore of described gland after upper spring is inserted in described push rod lower end, stop collar center hole is stretched out in described push rod upper end, and described stop collar is positioned at the central through bore of described housing top end, be connected with described gland by screw, spacing to described push rod;
C, described Shou Cao mechanism, comprise housing, left pressing plate rotating shaft, right pressing plate rotating shaft, left connecting base, right connecting base, left pressing plate, right pressing plate, connection rotating shaft, cam, Foldable handle, left positioning block, right positioning block;
Described left pressing plate rotating shaft, right pressing plate rotating shaft are parallel to each other, be arranged in housing along housing fore-and-aft direction interference fit, in described left pressing plate rotating shaft and right pressing plate rotating shaft, cover has the left connecting base be rotatably assorted, right connecting base respectively, and left pressing plate, right pressing plate are fixed on left connecting base, right connecting base respectively by screw;
When described first pilot valve and the second pilot valve are placed in after in housing, described left pressing plate, right pressing plate lay respectively at above the first pilot valve and the second pilot valve, align the push rod of corresponding first pilot valve and the second pilot valve;
Described connection rotating shaft between described left pressing plate rotating shaft and right pressing plate rotating shaft, and left pressing plate rotating shaft, right pressing plate shaft parallel and be installed in housing in same level, coordinate with housing into rotation; Described connection rotating shaft one end mill squarely axle, this end end face center has tapped hole, affixed cam on the axle body of connection rotating shaft; Fixed plate is connected by screw to be fixed on housing and to be stuck in described square shaft and limits axial displacement, prevents connection rotating shaft from deviating from housing;
Described Foldable handle is made up of handle head, conversion adapter and bearing pin, handle head is rotationally connected by one end of bearing pin and conversion adapter, the other end of conversion adapter has square opening, the conversion adapter of described Foldable handle is connected by the square shaft of described square opening and described connection rotating shaft, and be threaded with the tapped hole of set screw and described connection rotating shaft, limit described conversion adapter axial displacement;
Described left positioning block and right positioning block are fixed on housing upper-end surface by screw, and the handle head of Foldable handle snaps between left positioning block and right positioning block when folding;
When described left connecting base and left pressing plate work with left pressing plate rotating shaft for running shaft rotates, when described right connecting base and right pressing plate work with right pressing plate rotating shaft for running shaft rotates;
D, described electric coupler are standard electrical apparatus element, and electric coupler is connected with main valve by screw, and external control cable access electric coupler, controls the first pilot valve or the second pilot valve action.
Working procedure of the present invention is: after pressure oil enters main valve body from P mouth, be divided into three tunnels: a road enters the first pilot valve, a road enters the second pilot valve, and the 3rd tunnel enters one-way valve.When the first pilot valve and the second pilot valve all do not have action, two control chambers of one-way valve are communicated with oil return inlet T by the first pilot valve and the second pilot valve, one-way valve is in closed condition under the effect of P mouth high pressure oil, the high pressure oil entering main valve body from P mouth, by unidirectional valve closure, does not enter main valve plug; Main valve plug left end control chamber and main valve plug right-hand member control chamber are communicated with oil return inlet T by the first pilot valve and the second pilot valve, and main valve plug is in meta under left spring and right spring action, and now actuator port A and actuator port B communicates with oil return inlet T.When electronic or means handle the first pilot valve action, the high pressure oil being entered main valve body by P mouth enters the control chamber of main valve plug left end control chamber and one-way valve simultaneously by the first pilot valve, one-way valve is opened, main valve plug moves right to " left side " working position, namely P mouth high pressure oil by one-way valve laggard enter main valve plug, export high pressure oil by main valve plug inner passage from A again, hydraulic fluid port B and oil return inlet T are connected simultaneously.When electronic or means handle the second pilot valve action, the high pressure oil being entered main valve body by P mouth enters the control chamber of main valve plug right-hand member control chamber and one-way valve simultaneously by the second pilot valve, one-way valve is opened, main valve plug moves to left " right side " working position, namely P mouth high pressure oil by one-way valve laggard enter main valve plug, export high pressure oil by main valve plug inner passage from B again, hydraulic fluid port A and oil return inlet T are connected simultaneously.
The present invention has two kinds of maneuverability patterns, both can remote electrically controlledly handle, also can manual control on the spot; Manual manipulation mode is: when the Foldable handle of Shou Cao mechanism rotates, band dynamic pressure plate or pressing plate move downward, drive the hand behaviour push rod action of pilot valve or the first pilot valve, i.e. manually opened selector valve, electricity behaviour mode is: pilot valve accepts action after electrical signal, promote main valve plug action, realize opening selector valve.
The valve member of several functions integrates by the present invention, simplify hydraulic system, adopt two No leakage Solenoid ball valves as pilot valve, the commutation function of main valve is controlled, main valve inside is integrated with the parts such as dual hydraulic control one-way valve and main valve plug, the high pressure oil entering main valve is carried out No leakage and closes by dual hydraulic control one-way valve before entering main valve plug, the Combination application of guide's Solenoid ball valve and dual hydraulic control one-way valve, ensure that No leakage function, reduce added power dissipation when hydraulic system is run, improve the Security that hydraulic system is run.
Accompanying drawing explanation
The appearance schematic diagram that Fig. 1 (A) is the embodiment of the present invention;
Fig. 1 (B) removes the left view after Shou Cao mechanism for Fig. 1 (A);
The plan view that Fig. 2 (A) is main valve;
The worm's eye view that Fig. 2 (B) is Fig. 2 (A);
Fig. 2 (C) is the A-A sectional view of Fig. 2 (A);
Fig. 2 (D) is the B-B sectional view of Fig. 2 (A);
Fig. 2 (E) is main valve plug structure of mounting hole schematic diagram;
Fig. 2 (F) is main valve plug structural representation;
Fig. 2 (G) is one-way valve structure of mounting hole schematic diagram;
Fig. 2 (H) is one-way valve structures schematic diagram;
Fig. 3 is pilot valve structural representation;
Fig. 4 (A) is Shou Cao mechanism plan view;
The worm's eye view that Fig. 4 (B) is Fig. 4 (A);
Fig. 4 (C) is the A-A sectional view of Fig. 4 (A);
Fig. 4 (D) is the B-B sectional view of Fig. 4 (B)
Fig. 4 (E) is connection rotating shaft structural representation;
Fig. 4 (F) is Foldable handle structural representation.
Embodiment
Below in conjunction with drawings and Examples to the detailed description of the invention:
As shown in Fig. 1 (A) and Fig. 1 (B), the present invention includes main valve 10, first pilot valve 20, second pilot valve 30, Shou Cao mechanism 40 and electric coupler 50, first pilot valve 20 and the second pilot valve 30 are screwed at main valve 10 upper surface, Shou Cao mechanism 40 covers on the outside of the first pilot valve 20 and the second pilot valve 30, and is fastened on main valve 10 upper surface;
As shown in Fig. 2 (A) ~ Fig. 2 (D), described main valve 10 comprises main valve body 11, main valve plug 12, left spring seat 13, left spring 14, right spring seat 15, right spring 16 and one-way valve 17, main valve body 11 axially has main valve plug mounting hole 11-1 parallel to each other and one-way valve mounting hole 11-2, be respectively used to install main valve plug 12 and one-way valve 17, there are filler opening 11-3, return opening 11-4 and A actuator port 11-5, B actuator port 11-6 in main valve body 11 bottom surface;
As shown in Fig. 2 (E), there is in described main valve plug mounting hole 11-1 the first outwardly convex annular chamber 11-1A, the second convex annular chamber 11-1B, the 3rd convex annular chamber 11-1C, the 4th convex annular chamber 11-1D, the 5th convex annular chamber 11-1E, the 6th convex annular chamber 11-1F, the 7th convex annular chamber 11-1G from left to right successively; 3rd convex annular chamber 11-1C is communicated with the B actuator port 11-6 of main valve body 11 bottom surface, 4th convex annular chamber 11-1D is communicated with the filler opening 11-3 of main valve body 11 bottom surface, 5th convex annular chamber 11-1E is communicated with the A actuator port 11-5 of main valve body 11 bottom surface, and the 6th convex annular chamber 11-1F is communicated with the return opening 11-4 of main valve body 11 bottom surface;
As shown in Fig. 2 (F), described main valve plug 12 is solid of rotation, and its surface has the first annular boss 12A, the second annular boss 12B, the 3rd annular boss 12C, the 4th annular boss 12D from left to right successively,
As shown in Fig. 2 (C), described main valve plug 12 is positioned at described main valve plug mounting hole 11-1, the left end of main valve plug 12 is provided with left spring seat 13 and left spring 14, the right-hand member of main valve plug 12 is provided with right spring seat 15 and right spring 16, first screw plug 18A, the second screw plug 18B respectively with described main valve plug mounting hole 11-1 two ends screw-thread fit, be arranged on main valve plug about 12 two ends, close main valve plug mounting hole 11-1, and limit the stroke of main valve plug 12;
As shown in Fig. 2 (G), there is in described one-way valve mounting hole 11-2 the first outwardly convex annular chamber 11-2A, the second convex annular chamber 11-2B, the 3rd convex annular chamber 11-2C, the 4th convex annular chamber 11-2D from left to right successively; First convex annular chamber 11-2A is communicated with the filler opening 11-3 of main valve body 11 bottom surface, and the 4th convex annular chamber 11-2D is communicated with the return opening 11-4 of main valve body 11 bottom surface by the duct in main valve body 11;
Described one-way valve 17 is positioned at described one-way valve mounting hole 11-2, as shown in Fig. 2 (H), described one-way valve 17 be included in install successively from left to right in one-way valve mounting hole 11-2 oil cylinder bonnet 17-2, cylinder tube 17-1, left piston 17-4, right piston 17-5, oil cylinder front cover 17-3, cone valve 17-6, poppet valve core 17-7, cone valve spring 17-8, cone valve end cap 17-9;
Described cylinder tube 17-1 outer wall has three road annular grooves, oil cylinder bonnet 17-2 and oil cylinder front cover 17-3 is respectively charged into the left and right end of cylinder tube 17-1, and left piston 17-4 and right piston 17-5 divides left and right be positioned at described cylinder tube 17-1 and coordinate with cylinder tube 17-1 clearance seal;
Described cone valve 17-6 is cylindrical shape, its left end has circular valve port 17-6A, cone valve outer wall has one annular groove 17-6B, there is bottom annular groove 17-6B the oil-through hole 17-6C be uniformly distributed along the circumference, cone valve 17-6 is built with the poppet spool valve 17-7 be sealed and matched with its gap, poppet spool valve 17-7 is the hollow cylinder that left end is closed, poppet spool valve outer wall has the oil through 17-7A being communicated with interior space, poppet spool valve is built with cone valve spring 17-8, poppet spool valve 17-7 left part is conical, coordinate with the circular valve port 17-6A of described cone valve 17-6 and form sealing surface, cone valve end cap 17-9 loads cone valve 17-6 right-hand member and withstands described cone valve spring 17-8, the piston rod of described right piston 17-5 is through oil cylinder front cover 17-3 and circular valve port 17-6A, 3rd screw plug 18C, the 4th screw plug 18D respectively with described one-way valve mounting hole 11-2 two ends screw-thread fit, be arranged on one-way valve about 17 two ends, closed check valve mounting hole 11-2,
B, as shown in Figure 3, described first pilot valve 20 is identical with the second pilot valve 30 structure, form by shell 2-2, wire board 2-1, lining 2-3, armature 2-4, upper steel ball 2-5, coil 2-6, middle ball seat 2-7, lower steel ball 2-8, lower ball base 2-9, lower spring 2-10, bottom 2-11, upper ball base 2-12, coil carrier 2-13, gland 2-14, upper spring 2-15, push rod 2-16 separately
Described shell 2-2 is cylindrical shape, and its top has central through bore; Described coil 2-6 is wound on coil carrier 2-13, coil carrier 2-13 is enclosed within lining 2-3, described lining 2-3 is cylindrical shape, there is in its barrel the axial spill port 2-3A and work oilhole 2-3B that are communicated with endoporus, the endoporus of lining is provided with lower ball base 2-9, middle ball seat 2-7, upper ball base 2-12 and armature 2-4 from bottom to top successively, described armature 2-4 is the cylindrical body with axial oilhole 2-4A, and its bottom end center has boss 2-4B; Have the cylindrical body of axial circular hole centered by described middle ball seat 2-7, the upper aperture of axial circular hole, lower aperture are respectively as upper valve port 2-7B and lower valve port 2-7A, and middle ball seat 2-7 sidewall has the radial direction oil hole being communicated with described axial circular hole; Described upper ball base 2-12 center hole is built-in with movable upper steel ball 2-5, and it is spacing to upper steel ball 2-5 that the boss 2-4B of described armature 2-4 stretches into upper ball base 2-12 center hole, and upper steel ball 2-5 and upper valve port 2-7B coordinates and forms sealing surface; Described lower ball base 2-9 center hole is built-in with movable lower steel ball 2-8; After described lining 2-3 upper end loads gland 2-14, load in shell together with coil 2-6 is overall from described shell 2-2 bottom, bottom 2-11 is connected by screw in described shell 2-2 bottom, withstand described lower ball base 2-9 by lower spring 2-10, lower steel ball 2-8 and lower valve port 2-7A coordinates formation sealing surface; Described bottom 2-11 center has pressure oil port P1, and pressure oil port P1 both sides have oil return inlet T 1 and actuator port A1, and described oil return inlet T 1 and actuator port A1 are communicated with the oilhole 2-3B that works with the spill port 2-3A on lining 2-3 respectively;
Described gland 2-14 has central through bore, penetrate from the central through bore of described gland 2-14 after upper spring 2-15 is inserted in described push rod 2-16 lower end, stop collar 2-17 center hole is stretched out in described push rod 2-16 upper end, described stop collar 2-17 is positioned at the central through bore on described shell 2-2 top, be connected with described gland 2-14 by screw, spacing to described push rod 2-16;
C, as shown in Fig. 4 (A) ~ Fig. 4 (F), described Shou Cao mechanism 40, comprises housing 4-1, left pressing plate rotating shaft 4-6, right pressing plate rotating shaft 4-11, left connecting base 4-5, right connecting base 4-12, left pressing plate 4-7, right pressing plate 4-10, connection rotating shaft 4-9, cam 4-8, Foldable handle 4-3, left positioning block 4-2, right positioning block 4-4;
As shown in Fig. 4 (C), described left pressing plate rotating shaft 4-6, right pressing plate rotating shaft 4-11 are parallel to each other, be arranged in housing 4-1 along housing 4-1 fore-and-aft direction interference fit, on described left pressing plate rotating shaft 4-6 and right pressing plate rotating shaft 4-11, cover has left connecting base 4-5, right connecting base 4-12, left pressing plate 4-7, the right pressing plate 4-10 be rotatably assorted to be fixed on left connecting base 4-5, right connecting base 4-12 respectively by screw respectively;
When described first pilot valve 20 and the second pilot valve 30 are placed in after in housing 4-1, described left pressing plate 4-7, right pressing plate 4-10 lay respectively at above the first pilot valve 20 and the second pilot valve 30, align the push rod 2-16 of corresponding first pilot valve 20 and the second pilot valve 30;
Described connection rotating shaft 4-9 is between described left pressing plate rotating shaft 4-6 and right pressing plate rotating shaft 4-11, and with left pressing plate rotating shaft 4-6, right pressing plate rotating shaft 4-11 is parallel and be installed in housing 4-1 in same level, is rotatably assorted with housing 4-1; As shown in Fig. 4 (E), described connection rotating shaft 4-9 mono-end mill squarely axle 4-9A, this end end face center has tapped hole 4-9B, as shown in Fig. 4 (D), affixed cam 4-8 on the axle body of connection rotating shaft 4-9; Fixed plate 4-13 is connected by screw to be fixed on housing 4-1 and to be stuck on described square shaft 4-9A and limits axial displacement, prevents connection rotating shaft 4-9 from deviating from housing 4-1;
As shown in Fig. 4 (F), described Foldable handle 4-3 is made up of handle head 4-3A, conversion adapter 4-3B and bearing pin 4-3C, handle head 4-3A is rotationally connected by one end of bearing pin 4-3C and conversion adapter 4-3B, the other end of conversion adapter 4-3B has square opening, the conversion adapter 4-3B of described Foldable handle 4-3 is connected by the square shaft 4-9A of described square opening and described connection rotating shaft 4-9, and be threaded with the tapped hole 4-9B of set screw 4-14 and described connection rotating shaft 4-9, limit described conversion adapter 4-3B axial displacement;
As shown in Fig. 4 (A), described left positioning block 4-2 and right positioning block 4-4 is fixed on housing 4-1 upper-end surface by screw, and the handle head 4-3A of Foldable handle 4-3 snaps between left positioning block 4-2 and right positioning block 4-4 when folding;
When described left connecting base 4-5 and left pressing plate 4-7 works with left pressing plate rotating shaft 4-6 for running shaft rotates, when described right connecting base 4-12 and right pressing plate 4-10 works with right pressing plate rotating shaft 4-11 for running shaft rotates;
D, described electric coupler 50 are standard electrical apparatus element, and electric coupler 50 is connected with main valve 10 by screw, and external control cable access electric coupler 50, controls the first pilot valve 20 or the second pilot valve 30 action.
Claims (1)
1. a spool-type valves, comprise main valve (10), the first pilot valve (20), the second pilot valve (30), Shou Cao mechanism (40) and electric coupler (50), first pilot valve (20) and the second pilot valve (30) are screwed at main valve (10) upper surface, Shou Cao mechanism (40) covers on the outside of the first pilot valve (20) and the second pilot valve (30), and be fastened on main valve (10) upper surface, it is characterized in that:
A, described main valve (10) comprises main valve body (11), main valve plug (12), left spring seat (13), left spring (14), right spring seat (15), right spring (16) and one-way valve (17), main valve body (11) axially has main valve plug mounting hole (11-1) parallel to each other and one-way valve mounting hole (11-2), be respectively used to main valve plug (12) and one-way valve (17) are installed, there is filler opening (11-3) main valve body (11) bottom surface, return opening (11-4) and A actuator port (11-5), B actuator port (11-6),
There is in described main valve plug mounting hole (11-1) the first outwardly convex annular chamber (11-1A), the second convex annular chamber (11-1B), the 3rd convex annular chamber (11-1C), the 4th convex annular chamber (11-1D), the 5th convex annular chamber (11-1E), the 6th convex annular chamber (11-1F), the 7th convex annular chamber (11-1G) from left to right successively; 3rd convex annular chamber (11-1C) is communicated with the B actuator port (11-6) of main valve body (11) bottom surface, 4th convex annular chamber (11-1D) is communicated with the filler opening (11-3) of main valve body (11) bottom surface, 5th convex annular chamber (11-1E) is communicated with the A actuator port (11-5) of main valve body (11) bottom surface, and the 6th convex annular chamber (11-1F) is communicated with the return opening (11-4) of main valve body (11) bottom surface;
Described main valve plug (12) is solid of rotation, its surface has the first annular boss (12A), the second annular boss (12B), the 3rd annular boss (12C), the 4th annular boss (12D) from left to right successively
Described main valve plug (12) is positioned at described main valve plug mounting hole (11-1), the left end of main valve plug (12) is provided with left spring seat (13) and left spring (14), the right-hand member of main valve plug (12) is provided with right spring seat (15) and right spring (16), first screw plug (18A), the second screw plug (18B) respectively with described main valve plug mounting hole (11-1) two ends screw-thread fit, be arranged on main valve plug (12) two ends, left and right, close main valve plug mounting hole (11-1), and limit the stroke of main valve plug (12);
There is in described one-way valve mounting hole (11-2) the first outwardly convex annular chamber (11-2A), the second convex annular chamber (11-2B), the 3rd convex annular chamber (11-2C), the 4th convex annular chamber (11-2D) from left to right successively; First convex annular chamber (11-2A) is communicated with the filler opening (11-3) of main valve body (11) bottom surface, and the 4th convex annular chamber (11-2D) is communicated with the return opening (11-4) of main valve body (11) bottom surface by the duct in main valve body (11);
Described one-way valve (17) is positioned at described one-way valve mounting hole (11-2), and described one-way valve (17) is included in oil cylinder bonnet (17-2), cylinder tube (17-1), left piston (17-4), right piston (17-5), oil cylinder front cover (17-3), cone valve (17-6), poppet valve core (17-7), cone valve spring (17-8), the cone valve end cap (17-9) installed successively from left to right in one-way valve mounting hole (11-2);
Described cylinder tube (17-1) outer wall has three road annular grooves, oil cylinder bonnet (17-2) and oil cylinder front cover (17-3) are respectively charged into the left and right end of cylinder tube (17-1), and left piston (17-4) and right piston (17-5) point left and right are positioned at described cylinder tube (17-1) and coordinate with cylinder tube (17-1) clearance seal;
Described cone valve (17-6) is cylindrical shape, its left end has circular valve port (17-6A), cone valve outer wall has one annular groove (17-6B), annular groove (17-6B) bottom has the oil-through hole (17-6C) be uniformly distributed along the circumference, cone valve (17-6) is built with the poppet spool valve (17-7) be sealed and matched with its gap, the hollow cylinder that poppet spool valve (17-7) is closed for left end, poppet spool valve outer wall has the oil through (17-7A) being communicated with interior space, poppet spool valve is built with cone valve spring (17-8), poppet spool valve (17-7) left part is conical, coordinate with the circular valve port (17-6A) of described cone valve (17-6) and form sealing surface, cone valve end cap (17-9) loads cone valve (17-6) right-hand member and withstands described cone valve spring (17-8), the piston rod of described right piston (17-5) is through oil cylinder front cover (17-3) and circular valve port (17-6A), 3rd screw plug (18C), the 4th screw plug (18D) respectively with described one-way valve mounting hole (11-2) two ends screw-thread fit, be arranged on one-way valve (17) two ends, left and right, closed check valve mounting hole (11-2),
B, described first pilot valve (20) are identical with the second pilot valve (30) structure, separately by shell (2-2), wire board (2-1), lining (2-3), armature (2-4), upper steel ball (2-5), coil (2-6), middle ball seat (2-7), lower steel ball (2-8), lower ball base (2-9), lower spring (2-10), bottom (2-11), upper ball base (2-12), coil carrier (2-13), gland (2-14), upper spring (2-15), push rod (2-16) composition;
Described shell (2-2) is cylindrical shape, and its top has central through bore; Described coil (2-6) is wound on coil carrier (2-13), coil carrier (2-13) is enclosed within lining (2-3), described lining (2-3) is cylindrical shape, there is in its barrel the axial spill port (2-3A) and work oilhole (2-3B) that are communicated with endoporus, the endoporus of lining is provided with lower ball base (2-9), middle ball seat (2-7), upper ball base (2-12) and armature (2-4) from bottom to top successively, described armature (2-4) is for having the cylindrical body of axial oilhole (2-4A), and its bottom end center has boss (2-4B); There is centered by described middle ball seat (2-7) cylindrical body of axial circular hole, the upper aperture of axial circular hole, lower aperture are respectively as upper valve port (2-7B) and lower valve port (2-7A), and middle ball seat (2-7) sidewall has the radial direction oil hole being communicated with described axial circular hole; Described upper ball base (2-12) center hole is built-in with movable upper steel ball (2-5), it is spacing to upper steel ball (2-5) that the boss (2-4B) of described armature (2-4) stretches into upper ball base (2-12) center hole, and upper steel ball (2-5) and upper valve port (2-7B) coordinate and form sealing surface; Described lower ball base (2-9) center hole is built-in with movable lower steel ball (2-8); After described lining (2-3) upper end loads gland (2-14), load in shell together with coil (2-6) is overall from described shell (2-2) bottom, bottom (2-11) is connected by screw in described shell (2-2) bottom, withstand described lower ball base (2-9) by lower spring (2-10), lower steel ball (2-8) and lower valve port (2-7A) coordinate formation sealing surface; Described bottom (2-11) center has pressure oil port P1, pressure oil port P1 both sides have oil return inlet T 1 and actuator port A1, and described oil return inlet T 1 and actuator port A1 are communicated with the oilhole (2-3B) that works with the spill port (2-3A) on lining (2-3) respectively;
Described gland (2-14) has central through bore, penetrate from the central through bore of described gland (2-14) after upper spring (2-15) is inserted in described push rod (2-16) lower end, stop collar (2-17) center hole is stretched out in described push rod (2-16) upper end, described stop collar (2-17) is positioned at the central through bore on described shell (2-2) top, be connected with described gland (2-14) by screw, spacing to described push rod (2-16);
C, described Shou Cao mechanism (40), comprise housing (4-1), left pressing plate rotating shaft (4-6), right pressing plate rotating shaft (4-11), left connecting base (4-5), right connecting base (4-12), left pressing plate (4-7), right pressing plate (4-10), connection rotating shaft (4-9), cam (4-8), Foldable handle (4-3), left positioning block (4-2), right positioning block (4-4);
Described left pressing plate rotating shaft (4-6), right pressing plate rotating shaft (4-11) are parallel to each other, be arranged in housing (4-1) along housing (4-1) fore-and-aft direction interference fit, in described left pressing plate rotating shaft (4-6) and right pressing plate rotating shaft (4-11), cover has the left connecting base (4-5) be rotatably assorted, right connecting base (4-12) respectively, and left pressing plate (4-7), right pressing plate (4-10) are fixed on left connecting base (4-5), right connecting base (4-12) respectively by screw;
When described first pilot valve (20) and the second pilot valve (30) are placed in after in housing (4-1), described left pressing plate (4-7), right pressing plate (4-10) lay respectively at the first pilot valve (20) and the second pilot valve (30) top, align the push rod (2-16) of corresponding first pilot valve (20) and the second pilot valve (30);
Described connection rotating shaft (4-9) is positioned between described left pressing plate rotating shaft (4-6) and right pressing plate rotating shaft (4-11), with left pressing plate rotating shaft (4-6), right pressing plate rotating shaft (4-11) is parallel and be installed in housing (4-1) in same level, is rotatably assorted with housing (4-1); Described connection rotating shaft (4-9) one end mill squarely axle (4-9A), this end end face center has tapped hole (4-9B), affixed cam (4-8) on the axle body of connection rotating shaft (4-9); Fixed plate (4-13) is connected by screw and is fixed on housing (4-1) and goes up and be stuck in described square shaft (4-9A) and limit axial displacement, prevents connection rotating shaft (4-9) from deviating from housing (4-1);
Described Foldable handle (4-3) is by handle head (4-3A), conversion adapter (4-3B) and bearing pin (4-3C) are formed, handle head (4-3A) is rotationally connected by bearing pin (4-3C) one end with conversion adapter (4-3B), the other end of conversion adapter (4-3B) has square opening, the conversion adapter (4-3B) of described Foldable handle (4-3) is connected by the square shaft (4-9A) of described square opening and described connection rotating shaft (4-9), and be threaded with the tapped hole (4-9B) of set screw (4-14) and described connection rotating shaft (4-9), limit described conversion adapter (4-3B) axial displacement,
Described left positioning block (4-2) and right positioning block (4-4) are fixed on housing (4-1) upper-end surface by screw, and the handle head (4-3A) of Foldable handle (4-3) snaps between left positioning block (4-2) and right positioning block (4-4) when folding;
When described left connecting base (4-5) and left pressing plate (4-7) work with left pressing plate rotating shaft (4-6) for running shaft rotates, when described right connecting base (4-12) and right pressing plate (4-10) work with right pressing plate rotating shaft (4-11) for running shaft rotates;
D, described electric coupler (50) are standard electrical apparatus element, electric coupler (50) is connected with main valve (10) by screw, external control cable access electric coupler (50), controls the first pilot valve (20) or the second pilot valve (30) action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468869.9A CN104389831B (en) | 2014-09-16 | 2014-09-16 | A kind of spool-type valves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468869.9A CN104389831B (en) | 2014-09-16 | 2014-09-16 | A kind of spool-type valves |
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| Publication Number | Publication Date |
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| CN104389831A CN104389831A (en) | 2015-03-04 |
| CN104389831B true CN104389831B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410468869.9A Active CN104389831B (en) | 2014-09-16 | 2014-09-16 | A kind of spool-type valves |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110307191B (en) * | 2019-06-25 | 2024-03-26 | 威海华东数控股份有限公司 | Hydraulic control automatic compensation type supercharging device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662783A (en) * | 1970-02-02 | 1972-05-16 | Parker Hannifin Corp | Spool valve assembly |
| US3964505A (en) * | 1975-02-10 | 1976-06-22 | Sperry Rand Corporation | Power transmission |
| CN85103856A (en) * | 1985-04-29 | 1987-05-13 | 浙江省瑞安永久机电研究所 | Multifunctional electromagnetic valves |
| CN1434219A (en) * | 2003-02-21 | 2003-08-06 | 华中科技大学 | Three-position three-way hydraulic change valve |
| CN201582236U (en) * | 2009-12-21 | 2010-09-15 | 中冶南方工程技术有限公司 | Manual and electric dual-control hydraulic reversing valve |
-
2014
- 2014-09-16 CN CN201410468869.9A patent/CN104389831B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662783A (en) * | 1970-02-02 | 1972-05-16 | Parker Hannifin Corp | Spool valve assembly |
| US3964505A (en) * | 1975-02-10 | 1976-06-22 | Sperry Rand Corporation | Power transmission |
| CN85103856A (en) * | 1985-04-29 | 1987-05-13 | 浙江省瑞安永久机电研究所 | Multifunctional electromagnetic valves |
| CN1434219A (en) * | 2003-02-21 | 2003-08-06 | 华中科技大学 | Three-position three-way hydraulic change valve |
| CN201582236U (en) * | 2009-12-21 | 2010-09-15 | 中冶南方工程技术有限公司 | Manual and electric dual-control hydraulic reversing valve |
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| CN104389831A (en) | 2015-03-04 |
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