CN107504222A - Two magnetic valves of self-locking type - Google Patents
Two magnetic valves of self-locking type Download PDFInfo
- Publication number
- CN107504222A CN107504222A CN201710821558.XA CN201710821558A CN107504222A CN 107504222 A CN107504222 A CN 107504222A CN 201710821558 A CN201710821558 A CN 201710821558A CN 107504222 A CN107504222 A CN 107504222A
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- China
- Prior art keywords
- flat key
- hydraulic fluid
- plane
- fluid ports
- guide groove
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0704—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising locking elements
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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
- F16K31/44—Mechanical actuating means
- F16K31/56—Mechanical actuating means without stable intermediate position, e.g. with snap action
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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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
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/524—Mechanical actuating means with crank, eccentric, or cam with a cam
- F16K31/52475—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a sliding valve
- F16K31/52483—Mechanical actuating means with crank, eccentric, or cam with a cam comprising a sliding valve comprising a multiple-way sliding valve
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to magnetic valve, to solve the shortcomings that working position of existing magnetic valve needs magnet coil to be persistently powered to maintain；Two magnetic valves of self-locking type are provided, including magnet coil, valve body, main valve stem is provided with valve body, main valve stem right-hand member is provided with left position back-moving spring, main valve stem left end is provided with the right position self-locking mechanism of valve element, and self-locking mechanism includes push rod, swingle, guide groove cylinder, and guide groove cylinder is provided with some guide grooves, push rod is provided with the high flat key slided in guide groove and low flat key, swingle are provided with flat key；The locking inclined-plane of guide groove cylinder right-hand member zigzag arrangement, axially straight plane, unblock inclined-plane, high flat key or low flat key right-hand member contact with flat key end chamfer when push rod moves right produces cross component force, and flat key end chamfer is identical with the incline direction on locking inclined-plane and unblock inclined-plane.The right working position of the valve is persistently powered not against magnet coil and produces thrust to maintain, solenoid ON pulse current transformation working position.Its life, fault rate reduce, and reliability improves.
Description
Technical field
The present invention relates to a kind of magnetic valve, more specifically to a kind of two magnetic valves of self-locking type.
Background technology
Magnetic valve is moved to working position by magnet coil driving valve element, and allows magnet coil to be persistently powered to make the valve of magnetic valve
Core is maintained at the working position, and after the magnet coil power-off of magnetic valve, valve element then automatically resets to another working position.Such as
The electromagnetism stopping brake valve used on loading machine.The main valve stem of electromagnetism stopping brake valve makes its function position by magnet coil power on/off
Switching, and the switching of function position still needs to magnet coil and is persistently powered afterwards in place, ensures main valve stem to produce lasting electromagnetic push
Some function position is fixed on, so as to release stopping brake, therefore loading machine, in working condition, magnet coil is powered always,
Because long-time energization can cause magnet coil persistent fever and the phenomenon of the failure burnt out finally occurs, therefore electromagnetism stopping brake valve
Magnet coil burn out and always be mechanical loader braking system fault rate highest phenomenon of the failure.
The content of the invention
The technical problem to be solved in the present invention is powered by magnet coil for existing magnetic valve and keeps its working position
Problem, and two magnetic valves of self-locking type that a kind of magnet coil keeps its working position without being powered are provided.
The present invention is such to realize the technical scheme of its purpose：A kind of two magnetic valves of self-locking type, including electricity are provided
Magnetic coil, valve body, the valve body is interior to be provided with main valve stem, and main valve stem right-hand member is provided with left position back-moving spring, it is characterised in that main valve stem
Left end is provided with the right position self-locking mechanism of valve element, and the right position self-locking mechanism of valve element includes what is moved right by magnet coil driving axial
Push rod, it is coaxially disposed with push rod and the corresponding swingle contacted with mandrel ends and main valve stem left end in both ends, is set in the top
Bar and rotation boom end and the guide groove cylinder being fixedly connected with the valve body, the push rod, swingle, guide groove cylinder and main valve stem are coaxially set
Put；Circumferential some uniform axially directed grooves are provided with the barrel of guide groove cylinder, are set on the cylindrical side of the push rod
There is the high flat key slided in the guide groove, quantity and the guide groove quantity phase are provided with the cylindrical side of swingle
Flat key that is same and being slided in the guide groove, the circumscribed circle diameter of the flat key are more than the internal diameter of the guide groove cylinder；It is described
Guide groove cylinder right-hand member is provided with the locking inclined-plane slid on for the flat key on the end face between two adjacent guide grooves
With unblock inclined-plane, low flat key is provided with the circumference side of the push rod, the right-hand member end face of the low flat key and slide into locking
Flat key end at inclined-plane final position is axially opposing；When the push rod moves right, the right side of the high flat key or low flat
The right side of key contacts with the flat key end chamfer of the swingle；The high flat key, low the flat key end contacted relative with flat key
There is the inclined-plane of the generation cross component force in flat key end chamfer, flat key end chamfer and locking inclined-plane on face and unlock inclined-plane
Incline direction is identical, and the locking inclined-plane and unblock inclined-plane junction are the straight planes in axial direction, locking inclined-plane, axially straight plane, are solved
Lock inclined-plane is serrated arrangement.
In above-mentioned two magnetic valves of self-locking type, the right-hand member end face of the low flat key and high flat key is the flat key end chamfer
Incline direction identical inclined-plane or carinate end face.
In above-mentioned two magnetic valves of self-locking type, the push rod right-hand member end face is provided with cylindrical cavity, the swingle left end
Sleeve is in the hole of the push rod right-hand member.
In above-mentioned two magnetic valves of self-locking type, the right-hand member of the high flat key and low flat key protrudes the right-hand member end of the push rod
Face.
In above-mentioned two magnetic valves of self-locking type, be provided with outer sleeve in the valve body, the outer wall of the guide groove cylinder with
Valve body interference fit, the outer wall of guide groove cylinder and the inwall interference fit of outer sleeve.
In above-mentioned two magnetic valves of self-locking type, the inner chamber of described outer sleeve is provided with step, and the interior intracavitary of outer sleeve is set
It is equipped with inner sleeve, the outer wall of inner sleeve and the inwall interference fit of outer sleeve, the right side of inner sleeve and the platform of outer sleeve
Rank end contact, left side flush with the left side of outer sleeve, and the diameter of bore of the inner sleeve is less than Gao Ping on the push rod
The external diameter of a circle of key.
In above-mentioned two magnetic valves of self-locking type, two magnetic valves of self-locking type are stopping brake valve, are provided with and are used on valve body
Connect the P hydraulic fluid ports of replenishing valve oil-out, the T hydraulic fluid ports for connecting hydraulic oil container, A hydraulic fluid ports for connecting accumulator and for even
The B hydraulic fluid ports of the brake piston cylinder of brake clamp are connect, when the main valve stem is in left position, the A hydraulic fluid ports turn on P hydraulic fluid ports, B hydraulic fluid ports
Turned on T hydraulic fluid ports.End between the A hydraulic fluid ports, P hydraulic fluid ports and B hydraulic fluid ports and T hydraulic fluid ports；When the main valve stem is in right position, the A
Hydraulic fluid port, P hydraulic fluid ports, B hydraulic fluid ports mutual conduction and with T hydraulic fluid ports end.
In above-mentioned two magnetic valves of self-locking type, connected in valve body and check valve is provided with the oil circuit of P hydraulic fluid ports, the A oil
Mouth oil duct is located at after check valve.
In above-mentioned two magnetic valves of self-locking type, the oil pocket and valve rod cavity in main valve stem left and right ends face are provided with oil
Road communicates with valve body T hydraulic fluid port oil ducts.
The present invention compared with prior art, in two magnetic valves of self-locking type of the present invention, including magnet coil, valve body, valve body
Interior to be provided with main valve stem, main valve stem right-hand member is provided with left position back-moving spring, and main valve stem left end is provided with the right position self-locking mechanism of valve element, self-locking
Mechanism includes push rod, swingle, guide groove cylinder, and guide groove cylinder is provided with some guide grooves, and push rod is provided with what is slided in guide groove
High flat key and low flat key, swingle are provided with flat key；The locking inclined-plane of guide groove cylinder right-hand member zigzag arrangement, axially straight plane, solution
Inclined-plane is locked, high flat key or low flat key right-hand member contact with flat key end chamfer when push rod moves right produces cross component force, flat key end
Portion inclined-plane is identical with the incline direction on locking inclined-plane and unblock inclined-plane.After magnet coil is powered, push rod promotes swingle and main valve
Bar is moved right, and valve is worked in right position, and after the flat key of swingle skids off from the guide groove in guide groove cylinder, swingle is put down
Key is slided on the locking inclined-plane of guide groove cylinder end, and after now magnet coil power-off, swingle is in the presence of back-moving spring, rotation
The end of flat key slides into final position (the swingle generation turn on locking inclined-plane on the locking inclined-plane of guide groove cylinder end on bull stick
It is dynamic), so as to which main valve stem is locked in into right position, after now magnet coil power-off, the valve is still in right position；When magnet coil leads to again
After electricity, push rod promotes swingle and valve rod to move right, and the flat key of swingle is along connection locking inclined-plane and the axle for unlocking inclined-plane
To straight planar movement, after flat key is moved to the axially end of straight plane, after magnet coil power-off, in the effect of back-moving spring
Under, the end face of flat key slides on unblock inclined-plane and slides on (swingle rotation), the axle that flat key is slid on guide groove cylinder
Axially moved into guide groove and along guide groove, main valve stem is also moved to the left, and the valve rod for being returns in the presence of back-moving spring
To left position.In the present invention, magnet coil only needs to be powered when changing the working position of valve, without logical after the working position change of valve
Electricity maintains, and improves the safety and reliability of valve.
Brief description of the drawings
Fig. 1 is the structural representation of two magnetic valves of self-locking type of the present invention.
Fig. 2 is the schematic diagram of two magnetic valves of self-locking type of the present invention.
Fig. 3 is the appearance schematic diagram of push rod in two magnetic valves of self-locking type of the present invention.
Fig. 4 is the appearance schematic diagram of guide groove cylinder in two magnetic valves of self-locking type of the present invention.
Fig. 5 is the structural representation of swingle in two magnetic valves of self-locking type of the present invention.
Fig. 6 is the partial enlarged drawing at guide groove cylinder in Fig. 1.
Parts title and sequence number in figure：
Magnet coil 1, seal assembly 2, left end cap 3, push rod 4, high flat key 41, low flat key 42, guide groove cylinder 5, guide groove 51,
Locking inclined-plane 52, axially unblock inclined-plane 53, straight plane 54, retainer ring 55, swingle 6, flat key 61, end chamfer 611, main valve stem
7th, valve body 8, back-moving spring 9, spring base 10, right end cap 11, sealing ring 12, screw 13, check valve 15, outer sleeve 16, inner sleeve
17th, oil duct 22 between sealing ring 19, screw 20, closure 21, chamber.
Embodiment
Illustrate specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, two magnetic valves of self-locking type in the present embodiment are a kind of loading machine stopping brake valves, it includes electricity
Magnetic coil 1, valve body 8, are provided with valve pocket in valve body 8, and main valve stem 7 is provided with valve pocket, valve pocket right-hand member by right end cap 11,
Sealing ring 12, screw 13 are sealed, and spring base 10 and left position back-moving spring 9 are provided with the chamber of the right-hand member of main valve stem 7, left
One end of position back-moving spring 9 is sleeved on spring base 10, and the other end contacts connection with the right-hand member of main valve stem 7.It is provided with valve body 8
For connecting the P hydraulic fluid ports of replenishing valve oil-out, the T hydraulic fluid ports for connecting hydraulic oil container, the A hydraulic fluid ports for connecting accumulator and use
In the B hydraulic fluid ports of the brake piston cylinder of connection brake clamp, when main valve stem 7 is in left position, A hydraulic fluid ports turn on P hydraulic fluid ports, B hydraulic fluid ports and T
Hydraulic fluid port turns on, and A hydraulic fluid ports and P hydraulic fluid ports end between B hydraulic fluid ports and T hydraulic fluid ports；When main valve stem 7 is in right position, P hydraulic fluid ports to A hydraulic fluid ports,
The oil circuit conducting of B hydraulic fluid ports, T hydraulic fluid ports end with other hydraulic fluid ports.Check valve 15 is provided with the oil circuit of connection P hydraulic fluid ports in valve body 8,
A hydraulic fluid ports oil duct is located at after check valve 15.The oil pocket and valve rod cavity in the left and right ends face of main valve stem 7 are provided with oil duct 22 between chamber
Communicated with valve body T hydraulic fluid port oil ducts.
Swingle 6 and push rod 4 are sequentially installed with to the left in the right-hand member of main valve stem 7, in the junction of push rod 4 and swingle 6
Provided with guide groove cylinder 5, the left side of guide groove cylinder 5 is provided with outer sleeve 16, and 16 are provided with inner sleeve 17, the left end of inner sleeve 17 in overcoat
With the big planes align of left end of outer sleeve 16, left end cap 3 is provided with the left side of valve body 8, the left end of push rod 4 is from left end cap 3, sealing
Component 2, closure 21 hole stretch out, be connected with magnet coil 1, magnet coil 1 be powered when, magnet coil 1 drive push rod 4 to
Move right.
As shown in fig. 6, the outer wall of guide groove cylinder 5 and the interference fit of valve body 1, the outer wall of guide groove cylinder 5 with it is outer
The inwall interference fit of sleeve 16, and the right-hand member of outer sleeve 16 withstands the retainer ring 55 on guide groove cylinder 5 in the axial direction.Outside
The internal face of sleeve 16 is provided with step, and inner sleeve 17 is assemblied in the inner chamber of outer sleeve 16, the outer wall and outer sleeve of inner sleeve 17
16 inwall is interference fit, and the left end end face of inner sleeve 17 contacts with the step end face of outer sleeve 17.
As shown in figure 4, guide groove cylinder 5 is cylindrical, there is the retainer ring 55 around guide groove cylinder, in guide groove cylinder in its outside wall surface
The guide groove 51 of four axial directions is provided with 5 internal face, the depth of guide groove can be equal to the wall thickness (guide groove of guide groove cylinder
Through the side wall of guide groove cylinder, as shown in figure 4, the depth of guide groove can also be less than the wall thickness of guide groove cylinder), guide groove 51 is around week
To being evenly arranged.Locking inclined-plane 52 is provided with end face on the right side of guide groove cylinder 5 between two guide grooves to conciliate
Inclined-plane 53 is locked, the starting point on locking inclined-plane 53 is located at the end of guide groove 51, is then gradually tilted to the left, the end on locking inclined-plane 52
There is self-locking inclined-plane terminal to the axially extending straight plane 54 in unblock inclined-plane 53 at point, in the final position of axially straight plane 54
It is the starting point for unlocking inclined-plane 53, unblock inclined-plane extends to another guide groove from the oblique left side of starting point.
As shown in figure 3, push rod 4 is in cylinder, it socializes on side close to right-hand member is evenly equipped with four high flat key 41 and four
Low flat key 42, the circumscribed circle of four high flat key 41 are more than the internal diameter of guide groove cylinder 5, axially directed groove of the high flat key 41 on guide groove cylinder
It in 51, can be slided along guide groove 51, there is a low flat key 42 between the adjacent high flat key 41 of each two, four low flat keys 42
Circumscribed circle is less than or equal to the internal diameter of guide groove cylinder 5, and the external diameter of a circle of low flat key 42 can also be more than the internal diameter of guide groove cylinder, but this
When should be opened up in the inwall of guide groove cylinder and accommodate the axial notch of low flat key, the depth of axial notch can not be more than the barrel of guide groove cylinder
Wall thickness.The end of high flat key 41 and low flat key 42 protrudes the right-hand member end face of push rod 4, and the end face of high flat key 41 and low flat key 42 is in
The ridge of radial protrusion takes the form of inclined plane, the incline direction phase of the incline direction and locking inclined-plane 52 or unblock inclined-plane 53 on the inclined-plane
Together.The cavity of cylinder is provided with the right-hand member end face of push rod 4.
As shown in figure 5, circumferential on the cylindrical side of swingle 6 be provided with four axial flat keys 61, four flat keys in uniform way
61 circumscribed circle is greater than the internal diameter of guide groove cylinder 5, and the left end end face of flat key 61 is end chamfer 611, its incline direction and locking
Inclined-plane 52 is identical with the incline direction on unblock inclined-plane 53.Swingle 6 is located at the right side that flat key left end is inserted into push rod 4 with the part on a left side
In the cylindrical cavity for holding end face, and the right-hand member of the high flat key 41 of push rod 4 and low flat key 42 can be with the flat key on swingle 6
61 left end end chamfers 611 contact.
In the present embodiment, the right-hand member of push rod is located in guide groove cylinder, and the high flat key 41 on push rod 4 is located in guide groove, rotation
The left end of bull stick 6 is connected with the right-hand member sleeve of push rod 4, also is located in guide groove cylinder 5.When complete machine is in stopped status, on swingle 6
Flat key 61 when also being located in the guide groove 51 on guide groove cylinder 5, the back-moving spring 9 of the right-hand member of main valve stem 7 promotes main valve stem 7, rotation
Bar 6, push rod 4 are moved to the left so that main valve stem 7 is in ultra-Left position, and the loading machine stopping brake valve is in left position, now P oil
Mouth turns on A hydraulic fluid ports, and B hydraulic fluid ports turn on T hydraulic fluid ports, but P hydraulic fluid ports and A hydraulic fluid ports end to the oil circuit of B hydraulic fluid ports and T hydraulic fluid ports, hydraulic oil
Accumulator can only be entered from P hydraulic fluid ports, check valve 15, A hydraulic fluid ports.Because B hydraulic fluid ports communicate with T hydraulic fluid ports, the braking for the clamp that brakes is lived
Hydraulic oil in plug cylinder flows back to hydraulic oil container through T mouths, then the tight brake block of brake clip clamp, i.e. complete machine realizes stopping brake.
When driver needs to release parking braking, parking brake switch is pressed, magnet coil 1 has a transient pulse
Electric current, when magnet coil 1 is powered, driving push rod 4 moves right, and push rod 4 promotes swingle 6 and main valve stem 7 to move right and press
The back-moving spring 9 of contracting right-hand member, after the flat key 61 on swingle 6 skids off guide groove 51, due to the left end end chamfer of flat key 61
611 be inclined-plane, is contacted with the high flat key 41 on push rod 4 when offseting, and an oblique component, this point can be produced on swingle 6
Push dynamic swingle 6 to rotate so that the end chamfer of flat key 61 is slid on locking inclined-plane 52, now the pulse on magnet coil
Electric current terminates, and in the presence of back-moving spring 9, the left end end chamfer of flat key 61 is slided on locking inclined-plane 52 on swingle 6
And finally slide into the final position on locking inclined-plane 52.The left end end chamfer 61 of flat key 6 stops guide groove cylinder 5 on swingle 6
On locking inclined-plane 52 on right side, so that main valve stem 7 is maintained at right position, now T hydraulic fluid ports and A hydraulic fluid ports, B hydraulic fluid ports, P hydraulic fluid ports
By the hydraulic oil of brake pump output enters A hydraulic fluid ports and B hydraulic fluid ports through P hydraulic fluid ports, through check valve 15, and hydraulic oil enters from B mouths
The brake piston cylinder of brake clamp, opens clamp, i.e., complete machine releases stopping brake.If P hydraulic fluid ports do not have hydraulic oil input,
Check valve 15 is closed, and the fluid in accumulator enters B hydraulic fluid ports, and clamp is opened, i.e., complete machine releases stopping brake.
When driver's pull-up parking brake switch again, magnet coil 1 has pulse current again, and magnet coil 1 produces
Raw thrust makes push rod 4 move right, the left end end chamfer 611 of the right-hand member of low flat key 42 on push rod 4 and flat key on swingle 6
Contact, push rod 4 promotes swingle 6, main valve stem 7 to move right a small distance, when the flat key 61 of swingle 6 is close to locking inclined-plane
Axially straight plane 54 between 52 and unblock inclined-plane 53 moves, when being moved to the axially end of straight plane 54, the low right-hand member of flat key 42
Caused oblique component causes swingle 6 to rotate in the left end end chamfer 611 of flat key 61, the flat key end on swingle 6
Portion inclined-plane 611 is slid on unblock inclined-plane 53, and now the electric current on magnet coil 1 terminates, and swingle 6 is in back-moving spring 9 and master
Under the promotion of valve rod 7, entered along the unblock rotational slide of inclined-plane 53 in guide groove 51, the flat key 61 on swingle 6 again lead by edge
Slided to the left to groove 51, main valve stem 7 also slides back into ultra-Left position to the left in the process, and the loading machine stopping brake valve is in
Zuo Wei, now P hydraulic fluid ports turned on A hydraulic fluid ports, B hydraulic fluid ports turn on T hydraulic fluid ports, but P hydraulic fluid ports and A hydraulic fluid ports are to B hydraulic fluid ports and the oil circuit of T hydraulic fluid ports
Cut-off, hydraulic oil can only enter accumulator from P hydraulic fluid ports, check valve 15, A hydraulic fluid ports.Because B hydraulic fluid ports communicate with T hydraulic fluid ports, brake clip
Hydraulic oil in the brake piston cylinder of pincers flows back to hydraulic oil container through T mouths, then the tight brake block of brake clip clamp, i.e., complete machine realizes parking
Braking.
In the present invention, the right working position of stopping brake valve does not rely on magnet coil and is persistently powered caused thrust to tie up
Hold, but contact and keep with the right side of guide groove cylinder by swingle, solenoid ON pulse current realizes the work of valve
Make the transformation of position.Electromagnet is due to need not persistently be powered, therefore its life-span greatly prolongs, and fault rate reduces, and reliability improves.
Magnetic valve in the present embodiment is the loading machine stopping brake valve used in engineering machinery, for people in the art
For member, can also be set as needed on valve body and valve rod corresponding to hydraulic fluid port and valve port, to be formed with corresponding function
Right position self-locking type electromagnetic valve.
Claims (9)
1. a kind of two magnetic valves of self-locking type, including magnet coil, valve body, the valve body is interior to be provided with main valve stem, main valve stem right-hand member
Provided with left position back-moving spring, it is characterised in that main valve stem left end is provided with the right position self-locking mechanism of valve element, the right position self-locking of valve element
Push rod that mechanism includes being moved right by magnet coil driving axial, it is coaxially disposed with push rod and both ends are corresponding and mandrel ends and master
The swingle of valve rod left end contact, it is set in the push rod and rotates boom end and the guide groove cylinder being fixedly connected with the valve body, it is described
Push rod, swingle, guide groove cylinder and main valve stem are coaxially disposed；Circumferential some uniform axial directions are provided with the barrel of guide groove cylinder
Guide groove, the high flat key slided in the guide groove is provided with the cylindrical side of the push rod, in the cylindrical side of swingle
Be provided with the flat key that quantity is identical with the guide groove quantity and can be slided in the guide groove on face, the flat key it is external
Circular diameter is more than the internal diameter of the guide groove cylinder；The guide groove cylinder right-hand member is provided with the end face between two adjacent guide grooves
For the locking inclined-plane that the flat key slides on and unblock inclined-plane, low flat key, institute are provided with the circumference side of the push rod
The right-hand member end face for stating low flat key is axially opposing with sliding into the flat key end at locking inclined-plane final position；The push rod moves right
When dynamic, the right side of the high flat key or the right side of low flat key contact with the flat key end chamfer of the swingle；The height
Flat key, low flat key have the inclined-plane that cross component force is produced in flat key end chamfer, flat key on the end face contacted relative with flat key
End chamfer is identical with the incline direction on locking inclined-plane and unblock inclined-plane, and the locking inclined-plane and unblock inclined-plane junction are axially
Straight plane, locking inclined-plane, axially straight plane, unblock inclined-plane are serrated arrangement.
2. two magnetic valves of self-locking type according to claim 1, it is characterised in that the right-hand member of the low flat key and high flat key
End face is the flat key end chamfer incline direction identical inclined-plane or carinate end face.
3. two magnetic valves of self-locking type according to claim 1, it is characterised in that the push rod right-hand member end face is provided with cylinder
Shape hole, the swingle left end sleeve is in the hole of the push rod right-hand member.
4. two magnetic valves of self-locking type according to claim 3, it is characterised in that the right-hand member of the high flat key and low flat key
Protrude the right-hand member end face of the push rod.
5. two magnetic valves of self-locking type according to any one of claim 1 to 4, it is characterised in that set in the valve body
Have an outer sleeve, outer wall and the valve body interference fit of the guide groove cylinder, the outer wall of guide groove cylinder and outer sleeve it is interior
Wall interference fit.
6. two magnetic valves of self-locking type according to claim 5, it is characterised in that the inner chamber of described outer sleeve is provided with
Step, the interior intracavitary of outer sleeve are provided with inner sleeve, the outer wall of inner sleeve and the inwall interference fit of outer sleeve, inner sleeve
Right side contacted with the step end face of outer sleeve, left side flushes with the left side of outer sleeve, and the endoporus of the inner sleeve is straight
Footpath is less than the high external diameter of a circle of flat key on the push rod.
7. two magnetic valves of self-locking type according to any one of claim 1 to 4, it is characterised in that two electromagnetism of self-locking type
Valve is stopping brake valve, and the P hydraulic fluid ports for being used to connect replenishing valve oil-out, the T oil for connecting hydraulic oil container are provided with valve body
The B hydraulic fluid ports of mouth, the A hydraulic fluid ports for connecting accumulator and the brake piston cylinder for connecting brake clamp, the main valve stem are in
During left position, the A hydraulic fluid ports turn on P hydraulic fluid ports, and B hydraulic fluid ports turn on T hydraulic fluid ports.The A hydraulic fluid ports, P hydraulic fluid ports and B hydraulic fluid ports and T hydraulic fluid ports it
Between end；When the main valve stem is in right position, the A hydraulic fluid ports, P hydraulic fluid ports, B hydraulic fluid ports mutual conduction and with T hydraulic fluid ports end.
8. two magnetic valves of self-locking type according to claim 7, it is characterised in that on the oil circuit that P hydraulic fluid ports are connected in valve body
Check valve is provided with, the A hydraulic fluid ports oil duct is located at after check valve.
9. two magnetic valves of self-locking type according to claim 7, it is characterised in that the oil in main valve stem left and right ends face
Chamber and valve rod cavity are provided with oil duct and communicated with valve body T hydraulic fluid port oil ducts.
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| CN201710821558.XA CN107504222B (en) | 2017-09-13 | 2017-09-13 | Two solenoid valves of self-locking type |
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| CN201710821558.XA CN107504222B (en) | 2017-09-13 | 2017-09-13 | Two solenoid valves of self-locking type |
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| CN107504222B CN107504222B (en) | 2019-11-19 |
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| CN109330430A (en) * | 2018-09-03 | 2019-02-15 | 宣城市欧帝斯卫浴有限公司 | A kind of monolithic devices bathtub |
| CN109707888A (en) * | 2019-02-19 | 2019-05-03 | 新乡市德恩智能工业有限公司 | A kind of hydraulic trigger-type automatic reset mechanism |
| CN113028051A (en) * | 2019-12-09 | 2021-06-25 | 比亚迪股份有限公司 | Hydraulically driven parking mechanism, brake caliper and vehicle |
| CN114673798A (en) * | 2022-05-30 | 2022-06-28 | 亿昇(天津)科技有限公司 | Inching type air emptying valve |
| CN116792432A (en) * | 2023-08-28 | 2023-09-22 | 采埃孚汽车科技(张家港)有限公司 | Multi-cylinder brake caliper with variable cylinder diameter, brake control method and brake control device |
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| CN114673798A (en) * | 2022-05-30 | 2022-06-28 | 亿昇(天津)科技有限公司 | Inching type air emptying valve |
| CN116792432A (en) * | 2023-08-28 | 2023-09-22 | 采埃孚汽车科技(张家港)有限公司 | Multi-cylinder brake caliper with variable cylinder diameter, brake control method and brake control device |
| CN116792432B (en) * | 2023-08-28 | 2023-11-14 | 采埃孚汽车科技(张家港)有限公司 | Multi-cylinder brake caliper with variable cylinder diameter, brake control method and brake control device |
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|---|---|
| CN107504222B (en) | 2019-11-19 |
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Effective date of registration: 20200622 Address after: 545007 the Guangxi Zhuang Autonomous Region Liuzhou City Liu Tai Road No. 1 Co-patentee after: Guangxi Zhi Tuo Technology Co.,Ltd. Patentee after: GUANGXI LIUGONG MACHINERY Co.,Ltd. Address before: 545007 the Guangxi Zhuang Autonomous Region Liuzhou City Liu Tai Road No. 1 Patentee before: GUANGXI LIUGONG MACHINERY Co.,Ltd. |