CN209115768U - Using the electronic major-minor oil tank changeover valve of linear stepping motor - Google Patents
Using the electronic major-minor oil tank changeover valve of linear stepping motor Download PDFInfo
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- CN209115768U CN209115768U CN201821488333.3U CN201821488333U CN209115768U CN 209115768 U CN209115768 U CN 209115768U CN 201821488333 U CN201821488333 U CN 201821488333U CN 209115768 U CN209115768 U CN 209115768U
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- stepping motor
- fuel tank
- linear stepping
- valve
- spool
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Abstract
A kind of electronic major-minor oil tank changeover valve using linear stepping motor.Its composition of this product includes: shield (16), the shield (16) is provided with linear stepping motor (4), the linear stepping motor (4) is connected by connector sleeve (26) with spool mechanism, it is fixed between the connector sleeve (26) and linear stepping motor by spring catch (38), the linear stepping motor (4) controls start and stop by motor control panel (21) and limit switch (7), the limit switch (7) passes through screw A(23) it is installed on L-type mounting plate (5), the linear stepping motor (4) and the limit switch (7) is installed by L-type mounting plate (5).The utility model is used for electronic major-minor oil tank changeover valve.
Description
Technical field
The utility model relates to automobile fuel system parts fields, and in particular to a kind of electricity using linear stepping motor
Dynamic major-minor oil tank changeover valve.
Background technique
Electronic major-minor oil tank changeover valve is mainly used for the heavy-duty car of double fuel tanks, and conventional conversion valve is cut using manual operation
It changes, operate inconvenience.Existing reversal valve locking device is steel ball machinery positioning, Yi Fasheng clamping stagnation.Existing electronic major-minor oil
Case switching valve uses ordinary motor+screw-nut structure, and structure is complicated, and control difficulty is high, poor reliability.Existing electric switching valve
Valve hole part mostly uses greatly plastic material, easy to wear, poor reliability.
Summary of the invention
Electronic control mode is used the purpose of the utility model is to provide a kind of, operation is more simple, reliability is higher
Using the electronic major-minor oil tank changeover valve of linear stepping motor.
Above-mentioned purpose is realized by following technical scheme:
A kind of electronic major-minor oil tank changeover valve using linear stepping motor, composition includes: shield (16), described
Shield (16) be provided with linear stepping motor (4), the linear stepping motor (4) passes through connector sleeve (26) and spool machine
Structure is connected, and is fixed between the connector sleeve (26) and linear stepping motor by spring catch (38), the straight line step
Start and stop are controlled by motor control panel (21) and limit switch (7) into motor (4), the limit switch (7) passes through screw A
(23) it is installed on L-type mounting plate (5), the linear stepping motor (4) and the limit switch (7) are pacified by L-type
Loading board (5) is installed；
The motor control panel (21) is installed on L-type mounting plate (5) back side, the motor control panel (21) and L-type
It is provided between mounting plate (5) insulation spacer (22), the L-type mounting plate (5) is solid by studs (3) and nut (24)
Due on valve body (1), the motor control panel (21) connects valve rod (2), described in the linear stepping motor (4) connection
Limit switch (7)；The spool mechanism includes the valve rod (2), is provided between the valve rod (2) and valve body (1)
Lower cover (32), the lower cover (32) top are provided with upper press cover (33), and the valve rod (2) one end is equipped with spool
(31), the valve rod other end is connect by crossbeam (10) with guide rod (28), is set between the valve rod (2) and crossbeam (10)
It is equipped with buffer spring (9), is provided with sliding block (11) on the side crossbeam (10) of the valve body (1), the L-type mounting plate
(5) it is machined with guide rail structure, sliding rail is located on the inside of L-type mounting plate, and the sliding block (11) moves up and down in sliding rail；
The guide rod (28) is connected through a screw thread with connector sleeve (26), and the spool is provided with O-shaped sealing on (31)
It encloses (30), is connect between the guide rod (28) and valve body (1) by lower cover (32) and upper press cover (33)；The valve body
(1) lower cover (32), the upper press cover (33) are housed, the lower cover (32) is provided with O-ring A(34) and O
Type circle B(35);The side of the valve body (1) is equipped with shield (16), the shield (16) and the valve body (1) it
Between be sealed by upper rubber mat (15), the shield (16) pass through screw F(12), spring washer F(13), plain cushion F(14) with
Valve body (1) connection, switching valve are connect with external cabling by pinboard (39).
The electronic major-minor oil tank changeover valve using linear stepping motor, valve body (1) are provided with shield (16), and two
By being threadedly coupled between person, the top rubber mat of sealing surface (15) is sealed, and upper rubber mat (15) is positioned by valve body boss；Protection
It is provide with and is equipped with terminal plate (17), terminal plate (17) is sealed by filling and sealing glue, and terminal plate (17) depends on screw E(18) installation is extremely
On shield (16), terminal plate one end is directly inserted on motor control panel (21).
The electronic major-minor oil tank changeover valve using linear stepping motor, the valve body (1) are provided with oil tank joint
Mouth A1, fuel tank interface B1, fuel tank interface A2, fuel tank interface B2, fuel tank interface P1, fuel tank interface P2, wherein the first spool (01)
The on and off of control fuel tank interface A1, fuel tank interface B1 and fuel tank interface P1, the second spool (02) control fuel tank interface A2,
Fuel tank interface B2 and P2 mouthfuls of fuel tank interface of on and off, are moved up and down by spool and realize the on and off of hydraulic fluid port.
The utility model has the advantages that
1. the utility model is moved up and down using linear stepping motor driving spool, pass through valve core sealed cover and valve seal
The contact in face has 6 hydraulic fluid ports, main oil with the conducting and closing realized between major-minor fuel tank hydraulic fluid port and engine oil port, the valve is separated
Case oil inlet with oil return is one each, auxiliary fuel tank oil inlet and oil return are one each, engine oil inlet and oil return each one, pass through straight line stepping
Motor action realizes that main fuel tank and auxiliary fuel tank oil inlet and oil return and engine oil inlet and oil return switch, to realize main fuel tank
It arbitrarily switches with auxiliary fuel tank to engine fuel circuit, realization can be cut simultaneously when another fuel tank of an oil tank fuel afterburnt
Enter, the vehicle single mileage travelled of increase, in addition, user can cut required label according to demand when two fuel tank label differences
Fuel oil.
The linear stepping motor low-speed big of the utility model exports, and switch speed is moderate, and easily controllable, straight line step
High into motor integrated level, performance is stablized, and high reliablity is widely used to Vehicle Industry.
The used step motor control plate of the utility model has self-protection program function, when limit microswitch failure or
When motor rotation blockage phenomenon caused by executing agency's clamping stagnation occurs, protective program can come into operation, and control linear stepping motor stops
Operation, can effectively prevent the damage of linear stepping motor and motor control panel.
The utility model accurately controls linear stepping motor stroke end positions using microswitch, and reliability is higher；It is micro-
Dynamic switch trigger gear is equipped with sliding rail, and control precision is high.
The utility model uses O-ring sealing structure, and sealing effect is good, can effectively prevent engine charge failure.
The utility model can be realized electronic, the reliable conversion of major-minor fuel tank, operate more convenient.
The utility model uses buffer spring, gives the reliable pretightning force of spool one, keeps spool reliably close with valve body sealing surface
Fitting, sealing effect are more outstanding.
Detailed description of the invention
Attached drawing 1 is the schematic illustration of this product.
Attached drawing 2 is the first visual angle three-dimensional figure of this product.
Attached drawing 3 is the second visual angle of this product three-dimensional figure.
Attached drawing 4 is this product top view.
Attached drawing 5 is the A-A cross section view of attached drawing 4.
Attached drawing 6 is the B-B cross section view of attached drawing 4.
Attached drawing 7 is this product circuit diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
Embodiment 1
A kind of electronic major-minor oil tank changeover valve using linear stepping motor, composition includes: shield 16, described
Shield 16 is provided with linear stepping motor 4, and the linear stepping motor 4 is connected by connector sleeve 26 with spool mechanism, institute
It is fixed between the connector sleeve 26 stated and linear stepping motor by spring catch 38, the linear stepping motor 4 passes through electricity
Machine control panel 21 and limit switch 7 control start and stop, and the limit switch 7 is installed on L-type mounting plate 5 by screw A23,
The linear stepping motor 4 and the limit switch 7 are installed by L-type mounting plate 5；Circuit board is installed on L-type
Back is installed, the mounting plate is fixed on valve body 1 by studs 3.
The motor control panel 21 is installed on 5 back side of L-type mounting plate, the motor control panel 21 and L-type mounting plate 5
Between be provided with insulation spacer 22, the L-type mounting plate 5 is fixed on valve body 1 by studs 3 and nut 24, described
Motor control panel 21 connect valve rod 2, the linear stepping motor 4 connects the limit switch 7；The spool mechanism
Comprising the valve rod 2, lower cover 32 is provided between the valve rod 2 and valve body 1,32 top of lower cover is provided with
Upper press cover 33, described 2 one end of valve rod are equipped with spool 31, and the valve rod other end is connect by crossbeam 10 with guide rod 28, institute
It is provided with buffer spring 9 between the valve rod 2 stated and crossbeam 10, sliding block 11, institute are provided on the side crossbeam 10 of the valve body 1
The L-type mounting plate 5 stated is machined with guide rail structure, and sliding rail is located on the inside of L-type mounting plate, and the sliding block 11 is transported up and down in sliding rail
It is dynamic；
The guide rod 28 is connected through a screw thread with connector sleeve 26, and O-ring seal 30, institute are provided on the spool 31
It is connected between the guide rod 28 stated and valve body 1 by lower cover 32 and upper press cover 33；The valve body 1 is equipped with the lower cover
32, the upper press cover 33, the lower cover 32 are provided with O-ring A34 and O-ring B35;The side of the valve body 1 fills
There is shield 16, is sealed between the shield 16 and the valve body 1 by upper rubber mat 15, the shield 16
It is connect by screw F12, spring washer F13, plain cushion F14 with valve body 1, switching valve is connect with external cabling by pinboard 39.
The electronic major-minor oil tank changeover valve using linear stepping motor, valve body 1 are provided with shield 16, the two it
Between by being threadedly coupled, the top rubber mat 15 of sealing surface is sealed, and upper rubber mat 15 is positioned by valve body boss；Shield is provided with
Terminal plate 17, terminal plate 17 are sealed by filling and sealing glue, and terminal plate 17 is installed by screw E18 to shield 16, wiring
Plate one end is directly inserted to motor control panel 21.
The electronic major-minor oil tank changeover valve using linear stepping motor, the valve body 1 are provided with fuel tank interface
A1, fuel tank interface B1, fuel tank interface A2, fuel tank interface B2, fuel tank interface P1, fuel tank interface P2, wherein the first spool 01 controls
The on and off of fuel tank interface A1, fuel tank interface B1 and fuel tank interface P1, the second spool 02 control fuel tank interface A2, oil tank joint
Mouth B2 and P2 mouthfuls of fuel tank interface of on and off, pass through the on and off that hydraulic fluid port is realized in spool up and down motion.
The linear stepping motor 4 uses built-in leadscrew-nut mechanism (prior art), spool stroke 12.5mm；In electricity
Stretching retraction movement is done under the driving of machine driving plate 21；The limit switch 7 is located at the two of about 4 stroke of linear stepping motor
A terminal, when linear stepping motor 4 moves to one of terminal, the sliding block 11 on spool mechanism dragged by motor bar is touched
Limit switch is sent out, linear stepping motor 4 is out of service and self-locking；Sliding block 11 is run in L-type mounting plate sliding rail, and sliding block 11 uses
Nylon material.
Spool mechanism described in the switching valve uses girder structure, above and below the dragging spool 31 of linear stepping motor 4
Movement, the spool 31 include the first spool 01, the second spool 02；2 spools are by the crossbeam 10 and described lead
Bar 28 is attached, and 2 spools are moved at the same time by the dragging of linear stepping motor 4；One linear stepping motor drags 2 simultaneously
A spool movement；When the first spool 01 and 02 side of the second spool are closed, the other side is opened, an only oil in the course of work
Case and engine engagement switch major-minor fuel tank；The first valve opening, the second valve opening are machined in the valve body 1, respectively with first
Spool 01, the second spool 02 are cooperated, and 2 spools move up and down in valve opening, and the first spool 01 is upper and lower in the first valve opening
Movement, the second spool 02 move up and down in the second valve opening.
The switching valve use 4 controls of linear stepping motor+limit switch, 7 control mode, positioning linear stepper motor it is exhausted
To position, after being abnormal power-off and re-powering, remain to work normally；The motor control panel 21 has defencive function, when because of limit
When bit switch failure or executing agency's clamping stagnation, it can cut off the power in time, keep linear stepping motor out of service, to effectively protect
It protects linear stepping motor and circuit board is not damaged.
Buffer spring 9 is provided at the switching valve valve rod, plain cushion 8 is arranged in both ends of the spring, after making spool and valve body contact, directly
Line stepper motor still runs 1mm stroke, this can compress valve core spring in the process, is bonded spool sufficiently with valve body 1；The switching valve
Spool 31 use cone valve structure.
Embodiment 2
Electronic major-minor oil tank changeover valve described in embodiment 1 using linear stepping motor, the spool mechanism include
Valve rod 2, described 2 one end of valve rod be equipped with spool 31, the valve rod other end by crossbeam 10 connect with guide rod 28 described in
It is provided with buffer spring 9 between valve rod 2 and crossbeam, sliding block 11, the guide rod 28 and company are provided on the side crossbeam
Female connector 26 is connected through a screw thread, and O-ring seal 30 is provided on the spool 31, is led between the guide rod 28 and valve body 1
It is realized to by lower cover 32 and upper press cover 33.
Embodiment 3
Electronic major-minor oil tank changeover valve described in embodiment 1 using linear stepping motor, valve body 1 equipped with lower cover 32 with
Upper press cover 33, the lower cover 32 are provided with O-ring A34 and O-ring B35.1 side of valve body is equipped with shield 16,
It is sealed between the shield 16 and valve body 1 by upper rubber mat 15.The switching valve and external cabling passes through wiring
Plate 39 is realized.
Embodiment 4
It, should using the electronic major-minor oil tank changeover valve of linear stepping motor described in above-described embodiment the embodiment described 1
Switching valve there are two operating position, respectively with motor bar to extend and retract two states corresponding.When motor bar stretches out, the valve
In main fuel tank working position, when motor bar retracts backward, which is in auxiliary fuel tank working position.
Further, which uses linear stepping motor 4, by the accurate control of motor control panel 21, to drag
The up and down action of spool 31, spool 31 include the first spool 01, the second spool 02.2 spools by crossbeam 10 and guide rod 28 into
Row connection, to guarantee that 2 spools are moved at the same time by the dragging of linear stepping motor 4.Realize a linear stepping motor 4
2 spool movements of dragging simultaneously.Guarantee when the first spool 01 and 02 side of the second spool are closed, other side open state, from
And realize in the course of work and only have a fuel tank and engine engagement, to realize the switching of major-minor fuel tank.
Further, 2 spools move up and down in valve opening, when spool runs to valve opening sealing surface, are pasted with sealing surface
After conjunction, the sealing of valve opening and engine oil port is realized by the O-ring being arranged on spool.When spool is moved far from sealing surface
When, it realizes valve opening and is connected with engine oil port.Being turned on and off for oil pipe is passed in and out to realize fuel tank oil pipe with engine,
And then realize the switching of major-minor fuel tank.
Further, linear stepping motor 4 carries out start-up and shut-down control, motor by motor control panel 21 and limit switch 7
Control panel 21 is responsible for driving linear stepping motor 4 and is moved, and limit switch 7 is responsible for cutting power supply, realizes that linear stepping motor 4 is expert at
The stopping of journey terminal acts.Upper microswitch, lower microswitch is respectively set in two terminals of stroke in the switching valve.Work as driving
When room control switch is located at main fuel tank position, motor bar is retracted, and dragging sliding block moves downward, until triggering lower microswitch, directly
Line stepper motor 4 is out of service for being electrically cut off.No. 01 spool, the conducting of No. 02 spool upper end, thus realize main fuel tank pipeline with
Engine is connected into, oil return line, and main fuel tank is in running order at this time, and the linear stepping motor 4 has self-locking function, avoids
Because spool position caused by the reasons such as vibration on vehicle changes.Otherwise when driver's rotary control switch to auxiliary fuel tank position
When, motor bar stretches out, and dragging sliding block moves upwards, until triggering upper microswitch, linear stepping motor 4 stops for being electrically cut off
Operation.No. 01 spool, the conducting of No. 02 spool lower end at this time connect to realize auxiliary fuel tank pipeline and engine into, oil return line
Logical, auxiliary fuel tank is in running order at this time, while self-locking, until subsequent operation.
The switching valve driving motor is controlled using high-precision, high reliability linear stepping motor 4, in linear stepping motor 4
Portion is leadscrew-nut mechanism, and motor bar does stretching motion up and down, do not make rotating motion, is in this way integrated into the mechanism that spool is gone up and down
Inside linear stepping motor 4, integrated level is higher, and the mechanical structure of the spool lifting greatly simplified, reliability greatly increases.And it is straight
4 thrust output of line stepper motor and pulling force 100N or so, thrust needed for dragging much larger than spool and pulling force, redundancy is higher, makes
4 failure rate of linear stepping motor substantially reduces.The linear stepping motor 4 takes full advantage of the low-speed big of linear stepping motor
Region, linear stepping motor 4 design small and exquisite, workmanship exquisiteness, and in Vehicle Industry large-scale use, have passed through practical for a long time
The verifying of application, high reliablity.
The switching valve spool mechanism uses beam type design structure, is connect by guide rod 28 with crossbeam 10, and 10 both ends of crossbeam connect
A valve rod 2 is connect, spool 31 is in the periphery of position valve rod 2, thus connects two spools, realizes a straight line step
Two spool synchronization actions are driven simultaneously into motor 4.
The switching valve uses 4 controls of linear stepping motor+microswitch, 7 control mode, and it is disconnected to compensate for linear stepping motor 4
The deficiency that absolute position can not be determined after electricity remains to accurate even if making switching valve in the case where abnormal power-down after re-powering
Positioning.The switching valve microswitch trigger device is provided with sliding rail at L-type mounting plate 5, increases limit switch triggering device
The positioning accuracy of sliding block 11.
Buffer spring 9 is provided at the switching valve valve rod, after making spool and valve body contact, linear stepping motor is still run
1mm stroke, this can compress valve core spring in the process, be bonded spool sufficiently with valve body, sealing effect is more preferably.The valve core 31 is adopted
With cone valve structure, there is good air-tightness, engine charge is effectively prevent to lead to engine failure.
Embodiment 5
Using the electronic major-minor oil tank changeover valve of linear stepping motor described in above-described embodiment the embodiment described 1,
Composition includes: main valve body, and the main valve body connects shield.
Motor-driven mechanism is housed on the inside of the shield, the motor-driven mechanism include linear stepping motor,
The linear stepping motor is fixed on motor mounting plate, and the motor mounting plate is connected to main valve body by stud.
The motor mounting plate is machined with sliding rail, and the sliding block does linear motion up and down, the straight line stepping electricity in guide rail
Machine is driven by motor control panel, and two working positions respectively arrange a microswitch to linear stepping motor up and down, passes through motor control
The start and stop campaign of linear stepping motor is realized in the collaborative work of plate and microswitch, and the shield is provided with mounting hole and is used for
The integral installation of valve, the shield are provided with electric interfaces, and the electric interfaces with vehicle control system for docking.
The motor bar and spool mechanism is realized by connector sleeve to be connected, and described connector sleeve one end is connected by spring catch
It is connected to motor bar, one end is connected through a screw thread mode and is connected to spool mechanism.
The spool mechanism includes crossbeam, and the sliding block is installed on crossbeam, and the crossbeam is connected by circlip
To guide rod, the guide rod connects valve rod, and buffer spring, the valve rod connection valve are provided between the crossbeam and valve rod
Core is provided with O-ring seal on the spool.
Hydraulic fluid port and valve opening be set on the main valve body, the valve opening is provided with upper and lower gland, the upper press cover and
O-ring seal is provided among lower cover.
The course of work:
As shown in Fig. 7, which is controlled by a double-point double-throw switch, and when E connects power cathode, D is connect
When positive pole, position as shown in Fig. 7.4 bar of linear stepping motor retracts at this time, and motor bar drives spool mechanism to transport downwards
Dynamic, auxiliary fuel tank spool and valve body are sealed by sealing ring, and auxiliary fuel tank oil circuit is closed at this time, the conducting of main fuel tank oil circuit, i.e. main fuel tank
Fuel oil enters engine by the switching valve, due to can't burn completely into engine fuel, so oil inlet and oil return need to be arranged
Two oil circuits.When main fuel tank oil after-flame or other reasons need to switch to auxiliary fuel tank, change-over swith for fuel tanks, No. 1, No. 6 ends are converted
Son powers on, i.e. E connects positive pole, and when D connects power cathode, as shown in Fig. 7, motor bar stretches out at this time, while driving valve
Core mechanism moves upwards, and main fuel tank spool and valve body are sealed by valve core seal ring, and main fuel tank oil circuit is closed at this time, auxiliary fuel tank oil
Road conducting, i.e., auxiliary fuel tank fuel oil enters engine by the switching valve, and equally, auxiliary fuel tank oil circuit contains oil inlet pipe and oil return simultaneously
Pipeline, this two pipelines are to switch simultaneously, i.e., auxiliary fuel tank toward main fuel tank switch when, oil inlet pipe by auxiliary fuel tank oil inlet pipe switch based on
Fuel tank oil inlet pipe, oil return pipe are switched to main fuel tank oil return pipe by auxiliary fuel tank oil return pipe.Vice versa.The also convertible fuel level gauge of the valve
Display, i.e., when which platform fuel tank is devoted oneself to work, fuel level gauge show be current fuel tank oil mass value, this function is by being integrated in electricity
Fuel-quantity transducer change-over switch on the plate of road is realized.
It is above-described, the only preferable specific embodiment of the utility model, but the protection scope of the utility model is simultaneously
Not limited to this, anyone skilled in the art within the technical scope disclosed by the utility model, can think easily
The change or replacement arrived, should be covered within the scope of the utility model.
Claims (3)
1. a kind of electronic major-minor oil tank changeover valve using linear stepping motor, composition includes: shield (16), feature
Be: the shield (16) is provided with linear stepping motor (4), and the linear stepping motor (4) passes through connector sleeve (26)
It is connected with spool mechanism, is fixed between the connector sleeve (26) and linear stepping motor by spring catch (38), it is described
Linear stepping motor (4) start and stop, the limit switch (7) are controlled by motor control panel (21) and limit switch (7)
It is installed on L-type mounting plate (5) by screw A(23), the linear stepping motor (4) and the limit switch (7)
It is installed by L-type mounting plate (5)；
The motor control panel (21) is installed on L-type mounting plate (5) back side, and the motor control panel (21) and L-type are installed
It is provided between plate (5) insulation spacer (22), the L-type mounting plate (5) is fixed on by studs (3) and nut (24)
On valve body (1), the motor control panel (21) connects valve rod (2), the linear stepping motor (4) the connection limit
It switchs (7)；The spool mechanism includes the valve rod (2), is provided with pushing between the valve rod (2) and valve body (1)
It covers (32), the lower cover (32) top is provided with upper press cover (33), and the valve rod (2) one end is equipped with spool (31), institute
The valve rod other end stated is connect by crossbeam (10) with guide rod (28), is provided between the valve rod (2) and crossbeam (10) slow
It rushes spring (9), is provided with sliding block (11) on the side crossbeam (10) of the valve body (1), L-type mounting plate (5) processing
There is guide rail structure, sliding rail is located on the inside of L-type mounting plate, and the sliding block (11) moves up and down in sliding rail；
The guide rod (28) is connected through a screw thread with connector sleeve (26), and the spool is provided with O-ring seal on (31)
(30), it is connect between the guide rod (28) and valve body (1) by lower cover (32) and upper press cover (33)；The valve body (1)
Equipped with the lower cover (32), the upper press cover (33), the lower cover (32) is provided with O-ring A(34) and O-ring
B(35);The side of the valve body (1) is equipped with shield (16), leads between the shield (16) and the valve body (1)
Cross rubber mat (15) to be sealed, the shield (16) passes through screw F(12), spring washer F(13), plain cushion F(14) and valve body
(1) it connects, switching valve is connect with external cabling by pinboard (39).
2. the electronic major-minor oil tank changeover valve according to claim 1 using linear stepping motor, it is characterized in that: valve body
(1) shield (16) are provided with, between the two by being threadedly coupled, the top rubber mat of sealing surface (15) is sealed, upper rubber mat (15)
It is positioned by valve body boss；Shield is provided with terminal plate (17), and terminal plate (17) is sealed by filling and sealing glue, wiring
Plate (17) depends on screw E(18) it installs on shield (16), terminal plate one end is directly inserted on motor control panel (21).
3. the electronic major-minor oil tank changeover valve according to claim 1 using linear stepping motor, it is characterized in that: described
Valve body (1) is provided with fuel tank interface A1, fuel tank interface B1, fuel tank interface A2, fuel tank interface B2, fuel tank interface P1, fuel tank interface
P2, wherein the on and off of the first spool (01) control fuel tank interface A1, fuel tank interface B1 and fuel tank interface P1, the second spool
(02) on and off for controlling fuel tank interface A2, fuel tank interface B2 with P2 mouthfuls of fuel tank interface, is moved up and down by spool and is realized
The on and off of hydraulic fluid port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821488333.3U CN209115768U (en) | 2018-09-12 | 2018-09-12 | Using the electronic major-minor oil tank changeover valve of linear stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821488333.3U CN209115768U (en) | 2018-09-12 | 2018-09-12 | Using the electronic major-minor oil tank changeover valve of linear stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115768U true CN209115768U (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821488333.3U Active CN209115768U (en) | 2018-09-12 | 2018-09-12 | Using the electronic major-minor oil tank changeover valve of linear stepping motor |
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| Country | Link |
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| CN (1) | CN209115768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519584A (en) * | 2018-09-12 | 2019-03-26 | 太重集团榆次液压工业(济南)有限公司 | Using the electronic major-minor oil tank changeover valve and application method of linear stepping motor |
-
2018
- 2018-09-12 CN CN201821488333.3U patent/CN209115768U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519584A (en) * | 2018-09-12 | 2019-03-26 | 太重集团榆次液压工业(济南)有限公司 | Using the electronic major-minor oil tank changeover valve and application method of linear stepping motor |
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