CN104358748B - Motor return flushing valve and its control method - Google Patents
Motor return flushing valve and its control method Download PDFInfo
- Publication number
- CN104358748B CN104358748B CN201410610452.1A CN201410610452A CN104358748B CN 104358748 B CN104358748 B CN 104358748B CN 201410610452 A CN201410610452 A CN 201410610452A CN 104358748 B CN104358748 B CN 104358748B
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- valve
- oil duct
- flushing
- valve body
- hole
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims description 19
- 238000013016 damping Methods 0.000 claims abstract description 47
- 239000003921 oil Substances 0.000 claims description 190
- 238000007789 sealing Methods 0.000 claims description 30
- 125000003003 spiro group Chemical group 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 238000003801 milling Methods 0.000 claims description 6
- 238000003032 molecular docking Methods 0.000 claims description 4
- 239000010426 asphalt Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/62—Cooling or heating means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Valve Housings (AREA)
Abstract
Motor return flushing valve, including valve component, rinses valve seat, wherein, valve component is arranged on flushing valve seat, and valve component includes valve block, is provided with flushing valve element installing hole in valve block, rinse valve element to be installed in flushing valve element installing hole, flushing valve in-core is provided with flushing damping fin；Rinse and valve element damping hole is provided with valve element, valve element damping hole is connected with valve element axial direction oil duct, valve element axial direction oil duct is connected with valve element radial direction oil；Valve block top is provided with valve body and rinses oil duct and four road valve body commutation control oil ducts；Left valve seat commutation control oil duct oil duct left with valve component is connected, right valve seat commutation control oil duct oil duct right with valve component is connected, rinse and the upper valve base flushing oil duct being interconnected and lower valve base flushing oil duct are additionally provided with valve seat, the oil duct of lower valve base flushing simultaneously rinses oil duct with valve body and docks.The present invention is applied to hydraulic motor and not only reduces hand labor intensity, and cooling and motor operating conditions realize Dynamic Matching, effectively improve the operation stability of motor.
Description
Technical field
The present invention relates to hydraulic system execution components and parts technical field, more particularly, to a kind of motor return flushing valve and its control
Method processed.
Background technology
Hydraulic motor hydraulic oil shuttling movement during by hydraulic energy transfer for mechanical energy, creates huge heat,
If heat sheds not in time, hydraulic motor temperature rise will be led to too high, affect its service life and working characteristicses, serious will be even straight
Connect and cause parts damages；And flushing valve is selectable unit in the hydraulic motor using at present, to hydraulic motor cooling backwashing manner it is
Operator control external flush pipe that hydraulic motor is carried out with cooling flushing, and not only hand labor intensity is big, and cooling can not
The dynamic needs of adaptation condition, can not become Real-time and Dynamic to mate with the operating condition of motor.
Content of the invention
Technical problem solved by the invention is to provide a kind of motor return flushing valve and its control method, on solving
State the shortcoming in background technology.
Technical problem solved by the invention employs the following technical solutions to realize：
Motor return flushing valve, including valve component, rinses valve seat, and wherein, valve component is arranged on flushing valve seat, valve
Body assembly includes valve block, is provided with flushing valve element installing hole in valve block, rinses valve element and is assembled by valve element and cylindrical is installed on flushing
Valve element installs in the hole, and spacing with valve block positioned internal shoulder contact by valve element assembling positioning end face, and flushing valve in-core is installed
There is flushing damping fin, rinse and be provided with flushing damping hole on damping fin, limit for flushing flow rate during motor high-speed cruising, lead to
Cross and change various sizes of flushing damping hole, can get different high speed flushing flow rate；Rinse and valve element damping is provided with valve element
Hole, limits for flushing flow rate during motor low cruise, and valve element damping hole is connected with valve element axial direction oil duct, valve element axial direction oil duct
Connect with valve element radial direction oil, valve element radial direction oil is used for supercharging excessively stream during motor high-speed cruising, and valve block is additionally provided with punching
Wash spiro pluging hole, left commutation spiro pluging hole and right commutation spiro pluging hole, and rinse plug screw in the hole and valve body upper end plug screw is installed, left commutation spiral shell
Valve body left end plug screw is installed in consent, right commutation plug screw in the hole is provided with valve body right-hand member plug screw, and sets in the plug screw of valve body upper end
It is equipped with flushing pressure spring, rinse pressure spring one end and withstand on flushing valve element, the other end withstands on valve by pressure adjusting pad piece
The inwall of body upper end plug screw, can adjust, by adjusting the thickness of pressure adjusting pad piece, the precompression rinsing pressure spring；Valve block
Inside it is provided with the reversing valve core installing hole for installing reversing valve core, and be respectively arranged with commutation damping at the two ends of reversing valve core
Cylindrical, and the cylindrical equal milling of damping that commutates has damping plane, when reversing valve core loads the reversing valve core installing hole of valve block, institute
Inner circle forms gap to the damping plane of milling therewith, and this gap supplies hydraulic oil to pass through to control reversing valve core commutation, and in reversal valve
Core two ends bottom is fitted with commutation spring base respectively；Valve block top be provided with valve body rinse oil duct, valve body commutation control oil duct one,
Valve body commutation control oil duct two, valve body commutation control oil duct three and valve body commutation control oil duct four, and valve body commutation control oil duct
First, valve body commutation control oil duct two, valve body commutation control oil duct three and valve body commutation control oil duct four are the control of reversing valve core
Oil circuit is also to rinse oil circuit simultaneously, and it is individually to rinse oil circuit that valve body rinses oil duct；Rinse the left valve seat commutation of setting on valve seat
Oil duct oil duct left with valve component is controlled to be connected, the oil for the left oil duct of valve component passes through left valve seat commutation control oil duct transmission
To valve component, the right valve seat commutation control oil duct oil duct right with valve component rinsing setting on valve seat is connected, for valve body group
The oil of the right oil duct of part is transferred to valve component by right valve seat commutation control oil duct, rinses to be additionally provided with valve seat and is interconnected
Upper valve base rinses oil duct and rinses oil duct with lower valve base, and lower valve base is rinsed oil duct and docked with valve body flushing oil duct simultaneously, and valve body commutates
Oil duct three is controlled to dock with left valve seat commutation control oil duct, valve body commutation control oil duct one and right valve seat commutation control oil duct pair
Connect, the oil that valve body rinses oil duct output is delivered to upper valve base flushing oil duct through lower valve base flushing oil duct, and is conveyed to follow-up correlation
Parts are to rinse motor；Additionally, the left kidney-shaped hydraulic fluid port corresponding with the kidney-shaped hydraulic fluid port on oil distribution casing is provided with flushing valve seat
With right kidney-shaped hydraulic fluid port, for the hydraulic oil of system circuit being supplied to oil distribution casing and the oil return of oil distribution casing being transmitted back to system.
In the present invention, valve component is arranged on flushing valve seat by valve body trip bolt.
In the present invention, flushing valve in-core is provided with and keeps off for being fixed spacing hole opening to flushing damping fin
Circle.
In the present invention, it is provided with the left commutation back-moving spring resetting for reversing valve core in valve body left end plug screw.
In the present invention, it is provided with the right commutation back-moving spring resetting for reversing valve core in valve body right-hand member plug screw.
In the present invention, valve body upper end plug screw is set with sealing ring, and sealing ring is installed on flushing plug screw in the hole.
In the present invention, valve body left end plug screw is set with sealing ring, and sealing ring is installed on left commutation plug screw in the hole.
In the present invention, valve body left end plug screw is set with sealing ring, and sealing ring is installed on right commutation plug screw in the hole.
In the present invention, valve body commutation control oil duct three exit is provided with seal groove, and is provided with close for docking
The O-ring of envelope.
In the present invention, valve body commutation control oil duct one exit is provided with seal groove, and is provided with close for docking
The O-ring of envelope.
In the present invention, valve body rinses and is provided with seal groove at oil passage outlet, and is provided with O-shaped for Butt sealing
Circle.
In the present invention, rinse and be provided with flushing valve seat mounting screw holes on valve seat, for rinsing valve seat and motor shell
Connection fastening.
In the present invention, rinse valve seat side and be provided with four valve seat internal thread holes, be used for being fastenedly connected valve component.
In the present invention, valve block bottom is provided with left technique spiro pluging hole and right technique spiro pluging hole, and left sealing plug is installed
In left technique plug screw in the hole, right sealing plug is installed on right technique plug screw in the hole.
In the present invention, rinse and be provided with oil distribution casing dowel hole on valve seat, be fixedly mounted on flushing valve seat for spacing
On oil distribution casing.
The control method of motor return flushing valve, the right oil duct of valve component entered a pressure oil part is through rinsing inside valve seat
Oil duct is delivered to oil distribution casing driving cylinder scapus plug, and another part is conveyed to valve component through right valve seat commutation control oil duct, and warp
Reversing valve core is promoted at valve body left end plug screw end after valve body commutation control oil duct one, valve body commutation control oil duct two and damping clearance
Left lateral, thus open valve body commutation control oil duct four and the asphalt channel rinsing valve element installing hole；The right oil duct of valve component is entered
Pressure oil returns oil piping system after oil distribution casing driving cylinder scapus plug, flows back to the left oil of valve component through rinsing the oil circuit on valve seat
Road, is delivered to valve component through left valve seat commutation control oil duct simultaneously, and through valve body commutation control oil duct three, valve body commutation control
Oil duct four and rinse valve element installing hole and be delivered to flushing valve element, after defeated after the flushing damping hole damping on damping fin through rinsing
Go out, and rinse oil duct output through valve body and be delivered to upper valve base flushing oil duct through lower valve base flushing oil duct, to realize motor pressure oil
Flushing；Can ensure that the cleaning of hydraulic oil in performance loop by application backflow flushing valve in hydraulic motor or Hydrostatic drive
Degree, significantly improves the quality of circuit system hydraulic oil, and then extends the life-span of associated components in drive system；Not only reduce people
Work labor intensity, and cooling and motor operating conditions realize Dynamic Matching, effectively improve the operation stability of motor.
Beneficial effect：The present invention can ensure that performance loop by application backflow flushing valve in hydraulic motor or Hydrostatic drive
The cleannes of middle hydraulic oil, significantly improve the quality of circuit system hydraulic oil, and then extend the longevity of associated components in drive system
Life；Not only reduce hand labor intensity, and cooling and motor operating conditions realize Dynamic Matching, the operation effectively improving motor is steady
Qualitative.
Brief description
Fig. 1 is the structural representation of presently preferred embodiments of the present invention.
Fig. 2 is the valve component front view in presently preferred embodiments of the present invention.
Fig. 3 is the valve block top view in presently preferred embodiments of the present invention.
Fig. 4 is sectional view at C-C in Fig. 3.
Fig. 5 is sectional view at H in Fig. 3.
Fig. 6 is the valve block front view in presently preferred embodiments of the present invention.
Fig. 7 is the valve component top view in presently preferred embodiments of the present invention.
Fig. 8 is sectional view at C-C in Fig. 7.
Fig. 9 is the reversing valve core front view in presently preferred embodiments of the present invention.
Figure 10 is sectional view at E-E in Fig. 9.
Figure 11 is the flushing valve core structure schematic diagram in presently preferred embodiments of the present invention.
Figure 12 is the flushing damping fin structural representation in presently preferred embodiments of the present invention.
Figure 13 is the flushing valve seat front view in presently preferred embodiments of the present invention.
Figure 14 is the flushing valve seat rearview in presently preferred embodiments of the present invention.
Figure 15 is valve component and flushing valve seat scheme of installation in presently preferred embodiments of the present invention.
Figure 16 is sectional view at D-D in Figure 15.
Figure 17 is presently preferred embodiments of the present invention schematic diagram.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to the motor return flushing valve of Fig. 1～Figure 17, including valve component 1, valve body trip bolt 1-1, valve body upper end
Plug screw 1-2, valve body left end plug screw 1-3, valve body right-hand member plug screw 1-4, left sealing plug 1-5, right sealing plug 1-6, valve block 1-7,
Valve block mounting screw holes 1-7-1, flushing spiro pluging hole 1-7-2, left commutation spiro pluging hole 1-7-3, right commutation spiro pluging hole 1-7-4, flushing
Valve element installing hole 1-7-5, valve body commutation control oil duct one 1-7-6, valve body commutation control oil duct two 1-7-7, valve body commutation control
Oil duct three 1-7-8, valve body commutation control oil duct four 1-7-9, left technique spiro pluging hole 1-7-10, right technique spiro pluging hole 1-7-11, valve
Body rinses oil duct 1-7-12, seal groove one 1-7-13, seal groove two 1-7-14, seal groove three 1-7-15, reversing valve core
Installing hole 1-7-16, flushing damping fin 1-8, flushing damping hole 1-8-1, flushing valve element 1-9, valve element damping hole 1-9-1, valve element footpath
Assemble cylindrical 1-9-3, valve element axial direction oil duct 1-9-4, valve element assembling positioning end face 1-9-5, reversal valve to oil duct 1-9-2, valve element
Core 1-10, commutation damp a cylindrical 1-10-1, commutation damps cylindrical two 1-10-2, damp plane 1-10-3, O-ring one 1-11, O
Type circle two 1-12, O-ring three 1-13, pressure adjusting pad piece 1-14, sealing ring one 1-15, flushing pressure spring 1-16, sealing ring
Two 1-17, left commutation back-moving spring 1-18, commutation spring base one 1-19, right commutation back-moving spring 1-20, sealing ring three 1-21, change
To spring base two 1-22, hole split washer 1-23, rinse valve seat 2, rinse valve seat mounting screw holes 2-1, valve seat internal thread hole
2-2, lower valve base rinse oil duct 2-3, left valve seat commutation control oil duct 2-4, right valve seat commutation control oil duct 2-5, oil distribution casing positioning
Pin-and-hole 2-6, upper valve base rinse oil duct 2-7, valve component right oil duct external oil pipe fastening thread hole 2-8, the left oil duct of valve component
External oil pipe fastening thread hole 2-9, left kidney-shaped hydraulic fluid port 2-10, right kidney-shaped hydraulic fluid port 2-11, valve seat mounting screw 3, valve component are right
Oil duct A and valve component left oil duct B.
In the present embodiment, the main supporting body of valve component 1 part is valve block 1-7, and remaining part is mounted on valve block
On 1-7, rinse and flushing damping hole 1-8-1 be provided with damping fin 1-8, limit for flushing flow rate during motor high-speed cruising,
By changing various sizes of flushing damping hole 1-8-1, can get different high speed flushing flow rate, rinse and arrange on valve element 1-9
There is valve element damping hole 1-9-1, limit for flushing flow rate during motor low cruise, rinse the valve element footpath of setting on valve element 1-9
It is used for supercharging excessively stream during motor high-speed cruising to oil duct 1-9-2, rinse damping fin 1-8 and be installed in flushing valve element 1-9, and lead to
Via split washer 1-23 fixes spacing, rinses valve element 1-9 and assembles cylindrical 1-9-3 by valve element and be installed on rushing of valve block 1-7
Wash in valve element installing hole 1-7-5, and assemble the positioned internal shoulder contact limit of positioning end face 1-9-5 and valve block 1-7 by valve element
Valve element 1-9 is rinsed in position, valve body upper end plug screw 1-2 is set with sealing ring one 1-15 and is installed in flushing spiro pluging hole 1-7-2, valve
It is provided with flushing pressure spring 1-16 in the plug screw 1-2 of body upper end, rinse pressure spring 1-16 one end and withstand on flushing valve element 1-9,
The other end withstands on the inwall of valve body upper end plug screw 1-2 by pressure adjusting pad piece 1-14, by adjusting pressure adjusting pad piece 1-14
Thickness can adjust rinse pressure spring 1-16 precompression；And it is respectively arranged with commutation resistance at the two ends of reversing valve core 1-10
The cylindrical 1-10-1 of Buddhist nun and commutation damp cylindrical two 1-10-2, and at two, cylindrical equal milling has damping plane 1-10-3, when changing
Load to valve element 1-10 valve block 1-7 reversing valve core installing hole 1-7-16 when, damping plane 1-10-3 of institute's milling can with
Circle forms gap, and this gap supplies hydraulic oil to pass through to control reversing valve core 1-10 commutation, and reversing valve core 1-10 loads reversing valve core peace
After dress hole 1-7-16, two ends are fitted with commutation spring base one 1-19 and commutation spring base two 1-22, valve body left end plug screw 1-3 respectively
On be set with sealing ring two 1-17 and be installed in left commutation spiro pluging hole 1-7-3, and be provided with a left side in valve body left end plug screw 1-3 and change
It is used for reversing valve core 1-10 to back-moving spring 1-18 to reset, valve body right-hand member plug screw 1-4 is set with sealing ring three 1-21 and installs
In right commutation spiro pluging hole 1-7-4, and it is provided with right commutation back-moving spring 1-20 in valve body right-hand member plug screw 1-4 for reversing valve core
1-10 resets, and left sealing plug 1-5 is installed in left technique spiro pluging hole 1-7-10, and right sealing plug 1-6 is installed on right technique spiral shell
In consent 1-7-11；On valve block 1-7, valve body commutation control oil duct three 1-7-8 exit is provided with seal groove one 1-7-13,
And O-ring three 1-13 being installed for Butt sealing, valve body commutation control oil duct one 1-7-6 exit is provided with seal groove two
1-7-14, and O-ring one 1-11 is installed for Butt sealing, valve body rinses oil duct 1-7-12 exit and is provided with seal groove
Three 1-7-15, and O-ring two 1-12 is installed for Butt sealing；On valve block 1-7, valve block mounting screw holes 1-7-1 of setting is used
Installation in valve body trip bolt 1-1 is fixed, valve body commutation control oil duct one 1-7-6 of setting, valve body commutation control on valve block 1-7
Liquefaction road two 1-7-7, valve body commutation control oil duct three 1-7-8 and valve body commutation control oil duct four 1-7-9 are reversing valve core 1-10
Oil circuit control be also to rinse oil circuit simultaneously, it is single to rinse oil circuit that valve body rinses oil duct 1-7-12；Valve component 1 and flushing
After valve body trip bolt 1-1 installation, valve body is rinsed oil duct 1-7-12 and is docked with lower valve base flushing oil duct 2-3 valve seat 2, valve body
Commutation control oil duct three 1-7-8 is docked with left valve seat commutation control oil duct 2-4, valve body commutation control oil duct one 1-7-6 and right valve
Seat commutation control oil duct 2-5 docking.
In the present embodiment, rinse and be provided with flushing valve seat mounting screw holes 2-1 on valve seat 2, for rinsing valve seat 2 and horse
Reach the connection fastening of housing, the side rinsing valve seat 2 is provided with four valve seat internal thread hole 2-2, is used for being fastenedly connected valve body group
Part 1, the left valve seat commutation control oil duct 2-4 rinsing setting on valve seat 2 is connected with valve component left oil duct B, for valve component
The oil of left oil duct B can be transferred to valve component 1 by left valve seat commutation control oil duct 2-4, equally, rinses setting on valve seat 2
Right valve seat commutation control oil duct 2-5 is connected with valve component right oil duct A, and the oil for valve component right oil duct A can pass through right valve
Seat commutation control oil duct 2-5 is transferred to valve component 1, and the lower valve base flushing oil duct 2-3 rinsing setting on valve seat 2 can be by through valve body
The oil of assembly 1 transmits to upper valve base flushing oil road 2-7, and is conveyed to follow-up related components to rinse motor, rinses on valve seat 2
The oil distribution casing dowel hole 2-6 of setting is used for the spacing oil distribution casing being fixedly mounted on and rinsing on valve seat 2, and rinses institute on valve seat 2
The left kidney-shaped hydraulic fluid port 2-10 of setting and right kidney-shaped hydraulic fluid port 2-11 is corresponding with the kidney-shaped hydraulic fluid port on oil distribution casing, by the liquid of system circuit
Force feed is supplied to oil distribution casing and the oil return of oil distribution casing is transmitted back to system.
In the present embodiment, the control method of motor return flushing valve, with valve component right oil duct A oil-feed, valve component
As a example left oil duct B oil return, the right oil duct of valve component entered a pressure oil part is delivered to oil distribution casing through rinsing valve seat 2 internal galleries
Driving cylinder scapus plug, another part is conveyed to valve component 1 through right valve seat commutation control oil duct 2-5, and through valve body commutation control
Reversal valve is promoted at valve body left end plug screw 1-3 end after oil duct one 1-7-6, valve body commutation control oil duct two 1-7-7 and damping clearance
Core 1-10 left lateral, thus open valve body commutation control oil duct four 1-7-9 and the asphalt channel rinsing valve element installing hole 1-7-5；Valve
The entered pressure oil of the right oil duct of body assembly oil return system after oil distribution casing driving cylinder scapus plug, and through rinsing the oil circuit stream on valve seat 2
Return the left oil duct of valve component, be delivered to valve component 1 through left valve seat commutation control oil duct 2-4 simultaneously, and through valve body commutation control
Oil duct three 1-7-8, valve body commutation control oil duct four 1-7-9 and flushing valve element installing hole 1-7-5 are delivered to flushing valve element 1-9, warp
Export after the flushing damping hole 1-8-1 damping being installed on the flushing damping fin 1-8 rinsing in valve element 1-9, and rinse through valve body
Oil duct 1-7-12 output is rinsed oil duct 2-3 through lower valve base and is delivered to upper valve base flushing oil duct 2-7, to realize rushing of motor pressure oil
Wash；Right oil duct A is fuel-displaced for valve component left oil duct B oil-feed, valve component, and circuit is contrary.
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its
Equivalent thereof.
Claims (10)
1. motor return flushing valve, including valve component, rinses valve seat it is characterised in that valve component is arranged on flushing valve seat
On, valve component includes valve block, is provided with flushing valve element installing hole in valve block, rinses valve element and assembles cylindrical being installed on by valve element
Rinse in valve element installing hole, and, flushing valve in-core spacing with valve block positioned internal shoulder contact by valve element assembling positioning end face
Flushing damping fin is installed, rinses and be provided with flushing damping hole on damping fin；Rinse and be provided with valve element damping hole, valve element on valve element
Damping hole is connected with valve element axial direction oil duct, and valve element axial direction oil duct is connected with valve element radial direction oil, and valve block is additionally provided with flushing spiral shell
Consent, left commutation spiro pluging hole and right commutation spiro pluging hole, and rinse plug screw in the hole and valve body upper end plug screw is installed, left commutation spiro pluging hole
Valve body left end plug screw is inside installed, right commutation plug screw in the hole is provided with valve body right-hand member plug screw, and is provided with the plug screw of valve body upper end
Rinse pressure spring, rinse pressure spring one end and withstand on flushing valve element, the other end is withstood on valve body by pressure adjusting pad piece
The inwall of end plug screw；It is provided with the reversing valve core installing hole for installing reversing valve core in valve block, and the two ends in reversing valve core
It is respectively arranged with commutation damping cylindrical, and the cylindrical equal milling of damping that commutates has damping plane, when reversing valve core loads valve block
During reversing valve core installing hole, inner circle forms gap to the damping plane of institute's milling therewith, is commutated by control for hydraulic oil in this gap
Valve element commutates, and is fitted with commutation spring base respectively in reversing valve core two ends bottom；Valve block top be provided with valve body rinse oil duct,
Valve body commutation control oil duct one, valve body commutation control oil duct two, valve body commutation control oil duct three and valve body commutation control oil duct four；
The left valve seat commutation control oil duct oil duct left with valve component rinsing setting on valve seat is connected, and rinses the right valve seat of setting on valve seat
Commutation control oil duct oil duct right with valve component is connected, rinse be additionally provided with valve seat the upper valve base that is interconnected rinse oil duct with
Lower valve base rinses oil duct, and lower valve base rinses oil duct and valve body and rinses oil duct and docks simultaneously, valve body commutation control oil duct three and left valve
Seat commutation control oil duct docking, valve body commutation control oil duct one is docked with right valve seat commutation control oil duct；Additionally, on flushing valve seat
It is provided with the left kidney-shaped hydraulic fluid port corresponding with the kidney-shaped hydraulic fluid port on oil distribution casing and right kidney-shaped hydraulic fluid port.
2. motor return flushing valve according to claim 1 is it is characterised in that flushing valve in-core is provided with for flushing
Damping fin is fixed spacing hole split washer.
3. motor return flushing valve according to claim 1 is it is characterised in that be provided with for changing in valve body left end plug screw
Left commutation back-moving spring to valve core reset.
4. motor return flushing valve according to claim 1 is it is characterised in that be provided with for changing in valve body right-hand member plug screw
Right commutation back-moving spring to valve core reset.
5. motor return flushing valve according to claim 1 is it is characterised in that be set with sealing on the plug screw of valve body upper end
Circle, and sealing ring is installed on flushing plug screw in the hole.
6. motor return flushing valve according to claim 1 is it is characterised in that be set with sealing on valve body left end plug screw
Circle, and sealing ring is installed on left commutation plug screw in the hole.
7. motor return flushing valve according to claim 1 is it is characterised in that be set with sealing on valve body right-hand member plug screw
Circle, and sealing ring is installed on right commutation plug screw in the hole.
8. motor return flushing valve according to claim 1 is it is characterised in that valve block bottom is provided with left technique spiro pluging hole
With right technique spiro pluging hole, and left sealing plug is installed on left technique plug screw in the hole, and right sealing plug is installed on right technique spiro pluging hole
Interior.
9. motor return flushing valve according to claim 1 is provided with oil distribution casing positioning it is characterised in that rinsing on valve seat
Pin-and-hole.
10. the control method of motor return flushing valve is it is characterised in that the right oil duct of valve component entered a pressure oil part is through punching
Wash valve seat internal galleries and be delivered to oil distribution casing driving cylinder scapus plug, another part is conveyed to valve body through right valve seat commutation control oil duct
Assembly, and push away at valve body left end plug screw end after valve body commutation control oil duct one, valve body commutation control oil duct two and damping clearance
Dynamic reversing valve core left lateral, thus open valve body commutation control oil duct four and the asphalt channel rinsing valve element installing hole；Valve component
The entered pressure oil of right oil duct returns oil piping system after oil distribution casing driving cylinder scapus plug, flows back to valve through rinsing the oil circuit on valve seat
The left oil duct of body assembly, is delivered to valve component through left valve seat commutation control oil duct simultaneously, and through valve body commutation control oil duct three, valve
Body commutation control oil duct four and rinse valve element installing hole and be delivered to flushing valve element, after through rinsing the flushing damping hole on damping fin
Export after damping, and rinse oil duct output through valve body and be delivered to upper valve base flushing oil duct through lower valve base flushing oil duct, to realize horse
Reach the flushing of pressure oil.
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| CN201410610452.1A CN104358748B (en) | 2014-11-03 | 2014-11-03 | Motor return flushing valve and its control method |
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| CN104358748A CN104358748A (en) | 2015-02-18 |
| CN104358748B true CN104358748B (en) | 2017-03-01 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389836A (en) * | 2014-11-29 | 2015-03-04 | 南京萨伯工业设计研究院有限公司 | Motor flushing valve seat and machining method thereof |
| CN104454746B (en) * | 2014-11-29 | 2017-03-22 | 南京萨伯工业设计研究院有限公司 | Motor flushing valve block and machining method thereof |
| CN105041784A (en) * | 2015-06-24 | 2015-11-11 | 海特克液压有限公司 | Flushing valve |
| CN113864273A (en) * | 2021-10-18 | 2021-12-31 | 山东泰丰智能控制股份有限公司 | Flushing valve for closed pump |
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| CN204200772U (en) * | 2014-11-03 | 2015-03-11 | 南京萨伯工业设计研究院有限公司 | Motor return flushing valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101709795A (en) * | 2009-12-11 | 2010-05-19 | 上海诺玛液压系统有限公司 | Flushing valve |
| DE102010006464B4 (en) * | 2010-02-01 | 2021-02-18 | Robert Bosch Gmbh | Hydraulic arrangement |
| CN202517588U (en) * | 2012-05-04 | 2012-11-07 | 浙江德克玛液压制造有限公司 | Hydraulic driving device for stirring cylinder of concrete stirring and transporting vehicle |
| CN203412858U (en) * | 2013-08-12 | 2014-01-29 | 龙工（上海）精工液压有限公司 | Flushing valve for hydraulic motor of closed system |
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| CN204200772U (en) * | 2014-11-03 | 2015-03-11 | 南京萨伯工业设计研究院有限公司 | Motor return flushing valve |
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Effective date of registration: 20240424 Address after: Room 1-8024, No. 789 Xiangcheng Avenue, Yuanhe Street, Xiangcheng District, Suzhou City, Jiangsu Province, 215131 Patentee after: Gangchuan Industrial Technology (Suzhou) Co.,Ltd. Country or region after: China Address before: Building 12, No. 2 Hecheng Street, Chunxi Town, Gaochun District, Nanjing City, Jiangsu Province, 211300 Patentee before: NANJING SABO IND DESIGN RES INST Co.,Ltd. Country or region before: China |