CN109519584A - Using the electronic major-minor oil tank changeover valve and application method of linear stepping motor - Google Patents
Using the electronic major-minor oil tank changeover valve and application method of linear stepping motor Download PDFInfo
- Publication number
- CN109519584A CN109519584A CN201811061278.4A CN201811061278A CN109519584A CN 109519584 A CN109519584 A CN 109519584A CN 201811061278 A CN201811061278 A CN 201811061278A CN 109519584 A CN109519584 A CN 109519584A
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- China
- Prior art keywords
- stepping motor
- spool
- linear stepping
- valve
- fuel tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/046—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor with electric means, e.g. electric switches, to control the motor or to control a clutch between the valve and the motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
-
- 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
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K2015/03118—Multiple tanks, i.e. two or more separate tanks
- B60K2015/03131—Systems for filling dual tanks
Abstract
A kind of integrated 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 present invention is used for electronic major-minor oil tank changeover valve.
Description
Technical field
The present invention relates to automobile fuel system parts fields, and in particular to a kind of integration using linear stepping motor
Electronic 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, it is inconvenient.Existing reversal valve locking device is steel ball machinery positioning, Yi Fasheng clamping stagnation.Existing electronic major-minor fuel tank conversion
Valve uses ordinary motor+screw-nut structure, and structure is complicated, control difficulty is high, poor reliability.Existing electric switching valve spool portion
Part mostly uses greatly plastic material, easy to wear, poor reliability.
Summary of the invention
Electronic control mode is used the object of the present invention is to provide a kind of, operates more simple, the higher use of reliability
The integrated electronic major-minor oil tank changeover valve of linear stepping motor.
Above-mentioned purpose is realized by following technical scheme:
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor, composition includes: shield (16),
The shield (16) is provided with linear stepping motor (4), and the linear stepping motor (4) passes through connector sleeve (26) and valve
Core mechanism is connected, and is fixed between the connector sleeve (26) and linear stepping motor by spring catch (38), described is straight
Line stepper motor (4) controls start and stop by motor control panel (21) and limit switch (7), and 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) pass through L
Type mounting plate (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 (3), is provided between the valve rod (3) 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).
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor, the straight line stepping
Motor (4) uses built-in leadscrew-nut mechanism (prior art), spool stroke 12.5mm；Under the driving of motor driving plate (21)
Do stretching retraction movement；The limit switch (7) is located at two terminals of linear stepping motor (4) stroke up and down, works as straight line
When stepper motor (4) moves to one of terminal, sliding block (11) the triggering limit on spool mechanism dragged by motor bar is opened
It closes, 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 Buddhist nun
Imperial material.
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor, described in the switching valve
Spool mechanism uses girder structure, using the up and down action of linear stepping motor (4) dragging spool (31), the spool (31)
Include the first spool (01), the second spool (02)；2 spools are connected by the crossbeam (10) and the guide rod (28)
It connects, 2 spools are moved at the same time by the dragging of linear stepping motor (4)；It is dynamic that one linear stepping motor drags 2 spools simultaneously
Make；When the first spool (01) and the second spool (02) side are closed, the other side is opened, in the course of work an only fuel tank with
Engine engagement switches major-minor fuel tank；Is machined with the first valve opening, the second valve opening in the valve body (1), respectively with the first valve
Core (01), the second spool (02) are cooperated, and 2 spools move up and down in valve opening, and the first spool (01) is in the first valve opening
It moves up and down, the second spool (02) moves up and down in the second valve opening.
The switching valve uses linear stepping motor (4) control+limit switch (7) control mode, positioning linear stepper motor
Absolute position remain to work normally after being abnormal power-off and re-powering；The motor control panel (21) has defencive function,
When because of limit switch failure or executing agency's clamping stagnation, it can cut off the power in time, keep linear stepping motor out of service, thus
Effective protection linear stepping motor and circuit board are not damaged.
Buffer spring (9) are provided at the switching valve valve rod, plain cushion (8) are arranged in both ends of the spring, make spool and valve body contact
Afterwards, linear stepping motor still runs 1mm stroke, this can compress valve core spring in the process, is bonded spool sufficiently with valve body (1)；
The spool (31) of the switching valve uses cone valve structure.
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor, valve body (1) are provided with
Shield (16), between the two by being threadedly coupled, the top rubber mat of sealing surface (15) is sealed, and upper rubber mat (15) leans on valve body boss
It is positioned；Shield is provided with terminal plate (17), and terminal plate (17) is sealed by filling and sealing glue, and terminal plate (17) leans on spiral shell
Follow closely E(18) it installs on shield (16), terminal plate one end is directly inserted on motor driving plate (21).
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor, the valve body (1)
It 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
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
Liquefaction case 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 hydraulic fluid port
On and off.
The utility model has the advantages that
1. the present invention is moved up and down using linear stepping motor driving spool, the contact by valve core sealed cover with valve body sealing surface
With separate the conducting and closing realized between major-minor fuel tank hydraulic fluid port and engine oil port, which has 6 hydraulic fluid ports, main fuel tank 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, dynamic by linear stepping motor
Make, realize 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 and pair oil
Case is arbitrarily switched to engine fuel circuit, and can cutting simultaneously when another fuel tank of an oil tank fuel afterburnt for realization increases
Big vehicle single mileage travelled, in addition, user can cut the combustion of required label according to demand when two fuel tank label differences
Oil.
Linear stepping motor low-speed big output of the invention, switch speed is moderate, and easily controllable, straight line stepping electricity
Machine integrated level is high, and performance is stablized, and high reliablity is widely used to Vehicle Industry.
The used step motor control plate of the present invention has self-protection program function, when the failure of limit microswitch or executes
When motor rotation blockage phenomenon caused by mechanism clamping stagnation occurs, protective program can come into operation, and control linear stepping motor is out of service,
It can effectively prevent the damage of linear stepping motor and motor control panel.
The present invention accurately controls linear stepping motor stroke end positions using microswitch, and reliability is higher；Fine motion is opened
It closes trigger device and is equipped with sliding rail, control precision is high.
The present invention uses O-ring sealing structure, and sealing effect is good, can effectively prevent engine charge failure.
The present invention can be realized electronic, the reliable conversion of major-minor fuel tank, operate more convenient.
The present invention uses buffer spring, gives the reliable pretightning force of spool one, fits closely spool reliably with valve body sealing surface,
Sealing effect is 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 this product top view.
Attached drawing 4 is the A-A cross section view of attached drawing 3.
Attached drawing 5 is the B-B cross section view of attached drawing 3.
Attached drawing 6 is this product circuit diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Embodiment 1
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor, composition includes: shield 16, institute
The shield 16 stated is provided with linear stepping motor 4, and the linear stepping motor 4 passes through connector sleeve 26 and spool mechanism phase
Even, connection is realized by spring catch 38 between the connector sleeve 26 and linear stepping motor 4, the linear stepping motor 4
Start and stop are controlled by motor control panel 21 and microswitch 7, the linear stepping motor 4 and microswitch 7 pass through L-type
Mounting plate 5 is installed, and the circuit board is installed on L-type installation back, and the mounting plate is solid by studs 3
Due on valve body 1.
Embodiment 2
Spool mechanism described in embodiment 1 includes valve rod 2, and described 2 one end of valve rod is equipped with spool 31, the valve rod other end
It is connected by crossbeam 10 and guide rod 28 and is provided with buffer spring 9 between the valve rod 2 and crossbeam, set on the side crossbeam
It is equipped with sliding block 11, the guide rod 28 is connected through a screw thread with connector sleeve 26, is provided with O-ring seal on the spool 31
30, it is directed through lower cover 32 between the guide rod 28 and valve body 1 and upper press cover 33 is realized.
Embodiment 3
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor 4, valve body 1 is equipped with lower cover 32 and upper pressure
Lid 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, described
Shield 16 and valve body 1 between be sealed by upper rubber mat 15.The switching valve and external cabling passes through terminal plate 39
It realizes.
Embodiment 4
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor 4, the conversion described in above-described embodiment
Valve there are two operating position, respectively with motor bar to extend and retract two states corresponding.When motor bar stretches out, which is in
Auxiliary fuel tank working position, when motor bar retracts backward, which is in main 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 4
A kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor 4 described in above-described embodiment, composition
It include: main valve body, 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
Plate driving is driven by motor in machine, 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. 6, which is controlled by a double-point double-throw switch, and when E connects power cathode, D connects power supply
When positive, position as shown in Fig. 6.4 bar of linear stepping motor retracts at this time, and motor bar drives spool mechanism to move downward, secondary
Fuel tank spool and valve body are sealed by sealing ring, and auxiliary fuel tank oil circuit is closed at this time, and the conducting of main fuel tank oil circuit, i.e. main fuel tank fuel oil are logical
It crosses the switching valve and enters engine, due to can't burn completely into engine fuel, so two oil circuit of oil inlet and oil return need to be arranged.
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 terminals connections are converted
Power supply, i.e. E connect positive pole, and when D connects power cathode, as shown in Fig. 6, motor bar stretches out at this time, while driving spool mechanism
It moves upwards, 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, and auxiliary fuel tank oil circuit is led
Logical, 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 pipe simultaneously
Road, 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 oil
Case 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
It has been shown that, 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 circuit
Fuel-quantity transducer change-over switch on plate is realized.
It is above-described, it is merely preferred embodiments of the present invention, but protection scope of the present invention is not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, the variation that can readily occur in or replaces
It changes, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor, composition includes: shield
(16), it is characterized in that: the shield (16) is provided with linear stepping motor (4), the linear stepping motor (4) passes through
Connector sleeve (26) is connected with spool mechanism, is carried out between the connector sleeve (26) and linear stepping motor by spring catch (38)
Fixed, the linear stepping motor (4) controls start and stop, the limit by motor control panel (21) and limit switch (7)
Bit switch (7) passes through screw A(23) it is installed on L-type mounting plate (5), the linear stepping motor (4) and the limit
Bit switch (7) is installed by L-type mounting plate (5).
2. motor control panel (21) described in is installed on L-type mounting plate (5) back side, and the motor control panel (21) and L-type are pacified
It is provided between loading board (5) insulation spacer (22), the L-type mounting plate (5) is fixed by studs (3) and nut (24)
In on valve body (1), the motor control panel (21) connects valve rod (2), the linear stepping motor (4) the connection limit
Bit switch (7)；The spool mechanism includes the valve rod (3), is provided with down between the valve rod (3) and valve body (1)
Gland (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 provided between the valve rod (2) and crossbeam (10)
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) plus
Work has guide rail structure, and sliding rail is located on the inside of L-type mounting plate, and the sliding block (11) moves up and down in sliding rail.
3. guide rod (28) described in 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).
4. a kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor according to claim 1,
Be characterized in: the linear stepping motor (4) uses built-in leadscrew-nut mechanism (prior art), spool stroke 12.5mm；?
Stretching retraction movement is done under the driving of motor driving plate (21)；The limit switch (7) is located at linear stepping motor (4) up and down
Two terminals of stroke, when linear stepping motor (4) moves to one of terminal, on the spool mechanism that dragged by motor bar
Sliding block (11) trigger limit switch, linear stepping motor (4) is out of service and self-locking；Sliding block (11) is in L-type mounting plate sliding rail
Interior operation, sliding block (11) use nylon material.
5. a kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor according to claim 1,
Be characterized in: spool mechanism described in the switching valve uses girder structure, using the upper of linear stepping motor (4) dragging spool (31)
Lower movement, the spool (31) include the first spool (01), the second spool (02)；2 spools pass through the crossbeam (10)
It is attached with the guide rod (28), 2 spools are moved at the same time by the dragging of linear stepping motor (4)；One straight line step
Drag 2 spool movements simultaneously into motor；When the first spool (01) and the second spool (02) side are closed, the other side is opened,
Only have a fuel tank and engine engagement in the course of work, switches major-minor fuel tank；The first valve is machined in the valve body (1)
Hole, the second valve opening, respectively with the first spool (01), the second spool (02) cooperated, and 2 spools move up and down in valve opening,
First spool (01) moves up and down in the first valve opening, and the second spool (02) moves up and down in the second valve opening.
6. the switching valve uses linear stepping motor (4) control+limit switch (7) control mode, positioning linear stepper motor
Absolute position remains to work normally after being abnormal power-off and re-powering；The motor control panel (21) has defencive function, when
When because of limit switch failure or executing agency's clamping stagnation, it can cut off the power in time, keep linear stepping motor out of service, to have
Effect protection linear stepping motor and circuit board are not damaged.
7. being provided with buffer spring (9) at the switching valve valve rod, plain cushion (8) are arranged in both ends of the spring, after making spool and valve body contact,
Linear stepping motor still runs 1mm stroke, this can compress valve core spring in the process, is bonded spool sufficiently with valve body (1)；This turn
The spool (31) of valve is changed using cone valve structure.
8. a kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor according to claim 1,
Be characterized in: valve body (1) is provided with shield (16), and between the two by being threadedly coupled, the top rubber mat of sealing surface (15) is sealed,
Upper rubber mat (15) is positioned by valve body boss；Shield is provided with terminal plate (17), terminal plate (17) by filling and sealing glue into
Row sealing, terminal plate (17) depend on screw E(18) it installs on shield (16), terminal plate one end is directly inserted to motor driving plate
(21) on.
9. a kind of integrated electronic major-minor oil tank changeover valve using linear stepping motor according to claim 1,
Be characterized in: the valve body (1) is provided with fuel tank interface A1, fuel tank interface B1, fuel tank interface A2, fuel tank interface B2, oil tank joint
Mouth P1, fuel tank interface P2, wherein the conducting of the first spool (01) control fuel tank interface A1, fuel tank interface B1 and fuel tank interface P1
And cut-off, the second spool (02) control the on and off of fuel tank interface A2, fuel tank interface B2 with P2 mouthfuls of fuel tank interface, pass through valve
Core, which moves up and down, realizes the on and off of hydraulic fluid port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811061278.4A CN109519584A (en) | 2018-09-12 | 2018-09-12 | Using the electronic major-minor oil tank changeover valve and application method of linear stepping motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061278.4A CN109519584A (en) | 2018-09-12 | 2018-09-12 | Using the electronic major-minor oil tank changeover valve and application method of linear stepping motor |
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| CN109519584A true CN109519584A (en) | 2019-03-26 |
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| CN201811061278.4A Pending CN109519584A (en) | 2018-09-12 | 2018-09-12 | Using the electronic major-minor oil tank changeover valve and application method of linear stepping motor |
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| CN113022298A (en) * | 2021-03-24 | 2021-06-25 | 湖北中生汽车电器有限公司 | Fuel oil conversion valve of main and auxiliary fuel tanks for vehicle and conversion control method |
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