CN206106946U - Throttle control running -board assembly - Google Patents
Throttle control running -board assembly Download PDFInfo
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- CN206106946U CN206106946U CN201621031897.5U CN201621031897U CN206106946U CN 206106946 U CN206106946 U CN 206106946U CN 201621031897 U CN201621031897 U CN 201621031897U CN 206106946 U CN206106946 U CN 206106946U
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Abstract
The utility model discloses a throttle control running -board assembly, including the footboard mount pad, articulate the footboard body on the footboard mount pad, and the throttle control device, the throttle control device is including enabling the canceling release mechanical system that the subtended angle between footboard body and the footboard mount pad resets, and control engine throttle and subtended angle one -tenth proportional change's throttle opening -degree control mechanism, and oily subtended angle becomes proportional change with the hydraulic fluid of drive road speed related organization. The utility model discloses wait under the state in that the driving plus -minus is fast, operator person only need step on the combination valve control part can realize that throttle opening -degree is big more, and hydraulic pressure traveling system fuel feeding is more, and the speed of a motor vehicle is fast more, simultaneous control walking directional control solenoid valve powered on with cut off the power supply realize promptly the car advance, move back with the neutral gear state, this kind be more humanized to be controlled the mode and can adapt to navigating mate, the operator person custom of driving, brings very big convenience, be adapted to the operation under complicated road conditions, the abominable operation environment very much, travelling comfort, the security that still can further improve states such as driving, work.
Description
Technical field
The utility model is related to a kind of pedal of the engineering trucks such as wheel excavator, and more particularly to a kind of Throttle Opening Control is ridden
Plate assembly.
Background technology
The engineering trucks such as current wheel excavator, under the driving states such as driving, parking, acceleration, deceleration, human pilot,
Operating personnel is while corresponding operation need in time be made, the size of control throttle, to adapt to the change of driving states, also needs to make on one side
Gear shift, adjustment direction disk etc. are hung in corresponding operation, not only operate inconvenience, and operability also awaits further improvement.
Road conditions are complicated, operating environment it is severe in the case of, this just to human pilot, operating personnel bring it is very big not
Just, or even safety in production is had influence on.
Therefore, for this operation inconvenience of the engineering trucks such as wheel excavator, it is necessary to research and develop a kind of more humane behaviour
Control structure, operation is again plus convenient, and adapts to the custom of driving of human pilot, operating personnel, and then improves the shapes such as driving, work
The comfortableness of state, security.
Utility model content
In view of this, the purpose of this utility model is that a kind of throttle of offer and travelling control combination valve assembly combination valve are total
Into, can by accelerator open degree, direction of traffic, the organic association of road speed three and operator run jointly car custom.
In order to reach above-mentioned purpose, solution of the present utility model is：
Throttle Opening Control pedal assembly, including pedal mounting seat, the pedal body being hinged in pedal mounting seat, and oil
Controlling device for doors；
Accelerator control device includes the resetting-mechanism that the subtended angle between pedal body and pedal mounting seat can be made to reset, and
The accelerator open degree controlling organization of control engine throttle change proportional to subtended angle；And oily subtended angle associates machine with road speed is driven
The proportional change of hydraulic fluid of structure.
The resetting-mechanism includes pedal back-moving spring or pedal reduction torsion spring, pedal back-moving spring or pedal reduction torsion spring
Directly or indirectly withstand on the pedal mounting seat and the pedal body.
The accelerator open degree controlling organization includes mechanical accelerator open degree controlling organization.
The accelerator open degree controlling organization includes the reverse rod assembly of throttle, and reverse rod assembly directly or indirectly withstands on
In the pedal mounting seat and the pedal body, and reversely rod assembly is connected throttle related organization.
The accelerator open degree controlling organization includes electronic type accelerator opening controlling mechanism.
The accelerator open degree controlling organization includes control wire harness and rheostat, rheostat include winding, sliding contact end and
Slip exit；Slip exit contacts the pedal mounting seat with energy roll mode, and slip exit can drive slip to touch
Point end is slided on the contact road of winding, and winding can electrically connect the control wire harness, the control wire harness electrical connection throttle association
The control end of mechanism.
The company of slip between roller, and roller and the pedal mounting seat is provided with energy rotation mode on the slip exit
Connect.
After such scheme, the utility model has the advantages that：The utility model is in shapes such as driving acceleration and deceleration
Under state, operating personnel only need to step on combination valve control unit i.e. be capable of achieving accelerator open degree it is bigger, hydraulic travel system fuel feeding is more, speed
It is faster, while car forward and back and neutral position state are realized in control direction of travel control solenoid valves and power-off；It is this more humane
Control mode adapts to human pilot, operating personnel and drives to be accustomed to, and brings great convenience；It is particularly adapted to complex road condition, severe
Operation under operating environment, also can further improve comfortableness, the security of the states such as driving, work.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structural representation of the present utility model two.
Fig. 3 is structural representation of the present utility model three.
Fig. 4 is A-A in this Fig. 2 to sectional view.
Fig. 5 is combination valve core structural representation of the present utility model.
Fig. 6 is the B-B direction sectional view in this Fig. 3.
Fig. 7 is the C-C in Fig. 3 to sectional view.
Fig. 8 is the D-D in Fig. 3 to sectional view.
Fig. 9 is the E-E in Fig. 4 to sectional view.
Figure 10 is the F-F in Fig. 6 to sectional view.
Figure 11 hydraulic schematic diagrams of the present utility model.
In figure：
Pedal mounting seat 100, pedal body 200, throttle and travelling control combination valve 300,
Accelerator control device 400, accelerator open degree controlling organization 420, control wire harness 421, rheostat 422, slip exit
423rd, roller 424,
Travelling control combination valve 500,
Combinaing valve body, outer valve 510, inner valve body 511, inner valve body through hole 511a,
Combination valve oil suction chamber 510a, combination valve core cavity 510b, combination valve branch chamber 510c, combination valve go out oil pocket A, combination valve
Go out oil pocket B, combination valve oil back chamber 510d,
Combination valve import P, combination valve core mouth, combination valve outlet port A, combination valve outlet port B, combination valve oil return inlet T,
Combination valve core 512, outer valve element 5121, inner spool 5122, inner spool trip segment 5122a, inner spool convex platform
5122d, inner spool recess 5122c, inner spool lower convex platform 5122e,
Combination back-moving spring 513, outer back-moving spring 5131, interior back-moving spring 5132,
Combination valve control unit 514, compressing tablet 5141,
Direction of travel control magnetic valve 600,
Electromagnetic valve body 610, magnetic valve import 611, electromagnetic valve outlet 612, electromagnetic valve oil return mouth 613,
Electromagnetic valve core 620, electromagnetic valve core lower convex platform 621, electromagnetic valve core recess 622, electromagnetic valve core boss 623, cylindrical section
623a, conical section 623b, electromagnetism back-moving spring 624.
Specific embodiment
In order to the technical solution of the utility model is explained further, the utility model is entered below by specific embodiment
Row is elaborated.
Embodiment one
As shown in Figure 1 to 11, in the present embodiment, throttle and travelling control combination valve assembly mainly include pedal mounting seat
100th, pedal body 200, throttle and travelling control combination valve 300.
Throttle and travelling control combination valve 300 mainly include accelerator control device 400, travelling control combination valve 500, walking
Direction controlling magnetic valve 600.
Accelerator control device 400 mainly includes resetting-mechanism, accelerator open degree controlling organization 420.
Travelling control combination valve 500 mainly includes outer valve 510, combination valve core 512, combination back-moving spring 513 and combination
Valve control unit 514.
Direction of travel control magnetic valve 600 mainly includes electromagnetic valve body 610, electromagnetic valve core 620, electromagnetism back-moving spring 624
With solenoid valve control portion.
It is preferred that throttle and travelling control combination valve assembly mainly include the Throttle Opening Control pin of control engine throttle opening
Pedal assembly, controls the travelling control combination valve of advance and retreat speed, and control is advanced, the direction of travel of direction of retreat controls electromagnetism
Valve；Three configures as follows：When direction of travel control magnetic valve is switched under the state of moving forward and backward, accelerator open degree is controlled with Jing walkings
Combination valve processed is communicated to the proportional change of flow of the hydraulic fluid of driving related organization.Here ratio can be direct proportion,
Can also be inverse proportion, mainly according to the setting of accelerator open degree controlling organization 420 depending on, when automatically controlled or mechanism controls mechanism
When control variable quantity increases, accelerator open degree also becomes therewith, is direct proportion change.Conversely, working as automatically controlled or mechanism controls mechanism
Control variable quantity increase when, accelerator open degree but diminishes therewith, i.e., inverse proportion change.
Throttle Opening Control pedal assembly includes：Pedal mounting seat 100, the pedal body 200 being hinged in pedal mounting seat,
And accelerator control device 400；
Accelerator control device 400 includes the reset machine that the subtended angle between pedal body 200 and pedal mounting seat can be made to reset
Structure, and control engine throttle is directly proportional the accelerator open degree controlling organization of change to subtended angle；And accelerator open degree controlling organization is such as
Underdrive connects travelling control combination valve：From large to small, travelling control combination valve correspondence cut-out combination valve oil back chamber is connected subtended angle
Combination valve branch chamber, and the flow of the hydraulic fluid of combination valve branch chamber is directly proportional change to subtended angle.Certainly also can be inversely proportional
Change, the set-up mode of the subtended angle change being primarily to see between pedal body 200 and pedal mounting seat.
Resetting-mechanism includes pedal back-moving spring or pedal reduction torsion spring, and pedal back-moving spring or pedal reduction torsion spring are direct
Or withstand on indirectly on pedal mounting seat and pedal body；And/or
Accelerator open degree controlling organization includes mechanical accelerator open degree controlling organization, and it includes the reverse rod assembly of throttle, instead
Directly or indirectly withstand in pedal mounting seat and pedal body to rod assembly, and reversely rod assembly is connected throttle pass
Online structure；And/or
Accelerator open degree controlling organization includes electronic type accelerator opening controlling mechanism, and it includes controlling wire harness and rheostat, becomes
Resistance device includes winding, sliding contact end and slip exit；Slip exit is slided with energy roll mode contact pedal mounting seat
Dynamic exit can drive sliding contact end to slide on the contact road of winding, and winding can electrically connect control wire harness, control wire harness electricity
The control end of connection throttle related organization.
Travelling control combination valve includes that combination valve control unit 514, combination valve branch chamber, combination valve oil suction chamber, combination valve are returned
Oil pocket, combination valve core 512 and combination back-moving spring 513；
Combination valve core 512 includes the inside and outside inner spool 5122 for being correspondingly arranged and interlocking and outer valve element 5121, combines reset bullet
Spring 513 includes the inside and outside corresponding interior back-moving spring 5132 being arranged and outer back-moving spring 5131；
Accelerator open degree controlling organization is connected combination valve control unit 514, correspondence compression and discharges outer back-moving spring 5131,
And then make the cut-out of the correspondence of outer valve element 5121 and connect combination valve oil back chamber；Back-moving spring 5132 in correspondence compression and release, and then
By the connection of the correspondence of inner spool 5122 and cut-out combination valve branch chamber；And the flow and internal valve of the hydraulic fluid of combination valve branch chamber
The impulse stroke of core 5122 is directly proportional.
Travelling control combination valve includes the inside and outside inner valve body being correspondingly arranged and outer valve；From top to bottom set on inner spool 5122
It is equipped with the trip segment of inner spool 5122, the convex platform of inner spool 5122, the recess of inner spool 5122, the lower convex platform of inner spool 5122；
The one end of combination valve control unit 514 stretches out in 512 mouthfuls of combination valve core on outer valve, and directly or indirectly withstands on and step on
On plate body；
The other end of combination valve control unit 514 is put in the chamber of combination valve core 512 in outer valve, and is pushed up by compressing tablet 5141
On the upper free end of interior back-moving spring 5132 and outer back-moving spring 5131；The lower free end of outer back-moving spring 5131 withstands on internal valve
On body, the lower free end of interior back-moving spring 5132 is withstood on the convex platform of inner spool 5122；
When inner spool 5122 moves to operating position, the convex platform of inner spool 5122 cut-out combination valve oil back chamber, inner spool 5122
Recess connects combination valve branch chamber；When inner spool 5122 moves to reset position, the cut-out combination valve shunting of the lower convex platform of inner spool 5122
Chamber, the recess of inner spool 5122 connection combination valve oil back chamber.
The combination valve that connection combination valve branch chamber is provided with combinaing valve body goes out oil pocket A and combination valve goes out oil pocket B, and combination valve goes out
Oil pocket A goes out oil pocket B and connects driving related organization with combination valve；Combination valve goes out oil pocket A and combination valve goes out oil pocket B and is respectively communicated with one
Direction of travel controls magnetic valve 600；
Direction of travel control magnetic valve 600 includes electromagnetic valve body 610, electromagnetic valve core 620, electromagnetism back-moving spring and magnetic valve
Control unit,
Solenoid valve control portion controls electromagnetic valve core 620 when operating position and reset position are back and forth moved, and correspondence is connected and cut
Disconnected combination valve goes out oil pocket A or combination valve goes out oil pocket B.
Electromagnetic valve core 620 includes from the bottom to top the lower convex platform of electromagnetic valve core 620, the recess of electromagnetic valve core 620 and electromagnetic valve core 620
Convex platform；
The freely up and down end of electromagnetism back-moving spring corresponds to withstand on electromagnetic valve body 610 and the lower convex platform of electromagnetic valve core 620 respectively
On；
When electromagnetic valve core 620 moves to operating position respectively, the recess of institute's electromagnetic valve core 620 is respectively communicated with combination valve and goes out oil pocket
A or combination valve go out oil pocket B；
When electromagnetic valve core 620 moves to reset position respectively, it is fuel-displaced that the convex platform of institute's electromagnetic valve core 620 cuts off respectively combination valve
Chamber A or combination valve go out oil pocket B.
By way of example said mechanism is described in detail respectively below.
Throttle Opening Control pedal assembly embodiment one
As shown in Figure 1 to Figure 3, in the utility model, Throttle Opening Control pedal assembly mainly include pedal mounting seat 100,
Pedal body 200 and accelerator control device 400.Throttle Opening Control mainly includes resetting-mechanism, accelerator open degree controlling organization 420.
Pedal mounting seat 100 can adopt existing structure.
Pedal body 200 is hinged in pedal mounting seat 100 by structures such as hinges.
Resetting-mechanism can make subtended angle between pedal body 200 and pedal mounting seat 100 from large to small.Resetting-mechanism is main
Including pedal back-moving spring or pedal reduction torsion spring, two effect ends of pedal back-moving spring or pedal reduction torsion spring directly withstand on
In pedal mounting seat 100 and pedal body 200.Between two effect ends of pedal back-moving spring or pedal reduction torsion spring can also pass through
Ground connection is withstood in pedal mounting seat 100 and pedal body 200.
Accelerator open degree controlling organization 420 can control engine throttle and change from small to big.Accelerator open degree controlling organization 420 is mainly wrapped
Control wire harness 421 and rheostat 422 are included, rheostat 422 includes winding, sliding contact end and slip exit.Slip exit
With energy roll mode contact pedal mounting seat 100, and slip exit can drive sliding contact end sliding on the contact road of winding
Dynamic, winding can electrically connect control wire harness 421.
It is preferred that on slip exit with can rotation mode be provided with roller 423, and roller 423 and pedal mounting seat 100 it
Between be slidably connected.Specific as follows, rheostat 422 adopts slide wire resistor, slide wire resistance to be arranged at pedal mounting seat 100 and pedal
Between body 200.Slide wire resistor includes winding, sliding contact end and slip exit.Slip exit by roller 423 with
Pedal mounting seat 100 is slidably connected, and slip exit can drive sliding contact end to slide on the contact road of winding, winding energy
Electrical connection control wire harness 421.
Certainly, except using above-mentioned electric-controlled type accelerator control device 400, can also adopt mechanical accelerator control device 400,
For example with reverse Tiebar structure.That that's about the size of it is described for concrete manipulating principle.
Throttle Opening Control pedal assembly embodiment two
In the present embodiment, the lower section of pedal mounting seat 100 is additionally provided with travelling control combination valve 500, travelling control combination valve 500
Mainly include outer valve 510, and the combination valve control unit 514 for being arranged at keying on outer valve 510.Combination valve control 514
Stretch out the end outside outer valve and be directly or indirectly connected pedal body 200 in portion.
It is preferred that combination valve control unit stretches out the end sleeve rubber sleeve or rubber cap of outer valve, so, with buffering pedal
Impact is trampled between bottom and combination valve control unit.
In the present embodiment, either driving is advanced, or under driving fallback state, is stepped on pedal and can just be controlled throttle and open
Spend, and accelerator open degree is directly proportional to the flow of the hydraulic fluid in travelling control combination valve 500, specifically in rear embodiment in detail
State.
Throttle Opening Control pedal assembly embodiment three
The present embodiment is used for wheel excavator, and Throttle Opening Control pedal assembly is supported the use with travelling control combination valve 500,
Pedal mounting seat 100 and pedal body 200 are arranged on the top of travelling control combination valve, and pedal body 200 can be with walking control
The combination valve control unit of combination valve processed is interlocked.For example, pedal body 200 can directly or indirectly withstand on combination valve control unit and stretch
The end gone out outside outer valve.
When advance accelerates, the pedal body 200 of control pedal assembly of stepping on the gas downwards.Pedal body 200 is pacified with pedal
Subtended angle between dress seat 100 diminishes, and just correspondence controls engine to the accelerator open degree controlling organization 420 of Throttle Opening Control pedal assembly
Throttle changes from small to big, and the mechanical throttle of engine, E-Gas are controlled and operation principle can adopt existing structure, here no longer go to live in the household of one's in-laws on getting married
State.Specifically, roller 423 is slided backward, and the slip exit for making rheostat 422 drives sliding contact end in the contact of winding
Slide on road, change the size of resistance value.Because variable resistive value is changed, correspondingly variable signal is entered by control wire harness 421
And the throttle for controlling engine becomes big.When accelerator open degree is increased, the inlet flow rate of hydraulic motor is synchronously increased, and speed is faster.
Conversely, when advance is slowed down, only need to slightly unclamp pedal body 200.When accelerator open degree reduces, hydraulic motor
Inlet flow rate synchronously reduces, and speed is slower.
Travelling control combination valve embodiment one
As shown in Figures 1 to 6, in the present embodiment, travelling control combination valve 500 mainly includes outer valve 510, inner valve body
511st, combination valve core 512, combination back-moving spring 513 and combination valve control unit 514.
Combination valve oil suction chamber 510a, combination valve core cavity 510b, the combination valve branch chamber being interconnected is provided with outer valve
510c, combination valve go out oil pocket A, combination valve and go out oil pocket B and combination valve oil back chamber 510d.Correspondence is provided with connection combination valve on outer valve
The combination valve import P of oil suction chamber 510a, connects the combination valve core mouth of combination valve core cavity 510b, connects combination valve branch chamber 510c
Combination valve outlet port A, B, and the combination valve oil return inlet T of connection combination valve oil back chamber 510d.
Wherein, combining valve outlet port can arrange multiple, it is preferred that combination valve outlet port is two, combination valve outlet port A, combination valve
Outlet B corresponds to respectively oil-in, the oil-out of the related organizations such as UNICOM's hydraulic motor.
Combination valve core 512 includes outer valve element 5121 and the inner spool 5122 for interlocking, in inner spool 5122 and outer valve element 5121
It is correspondingly arranged outward.
Combination back-moving spring 513 includes outer back-moving spring 5131 and interior back-moving spring 5132, interior back-moving spring 5132 and outer
Back-moving spring 5131 is inside and outside to be correspondingly arranged.
By pushes pedals body 200, pedal body 200 is pressed downward combination valve control unit 514, combination valve control unit
514 push down on outer valve element 5121, and while the outer back-moving spring 5131 of compression and interior back-moving spring 5132.Now, outer valve element
5121 move down, correspondence cut-out combination valve oil back chamber 510d.
When combination valve control unit 514 continues to move down, by compression in back-moving spring 5132, drive inner spool 5122 to
Lower movement, when inner spool 5122 moves to operating position, at inner valve body through hole 511a, i.e., inner spool lower convex platform 5122e gets lodged in
Cut off from combination valve import P and, the passage between combination valve oil return inlet T, that is to say, that secondary stage is carried out by inner spool 5122
Control, to cut off combination valve oil return inlet T.
Now, combination valve branch chamber 510c is connected, and hydraulic fluid is entered from combination valve import P, from inner valve body 511
Passage enter, the annulus between the inner spool recess 5122c and inner valve body 511 of Jing inner spools 5122 then up, then from
Downwards, the passage from inner valve body through hole 511a downwards, enters back into combination valve branch chamber 510c to inner valve body through hole 511a.
Conversely,
Inner spool 5122 is moved upward to reset position under the active force of interior back-moving spring 5132, convex under inner spool
Platform 5122e cuts off combination valve branch chamber 510c, and the hydraulic fluid entered from combination valve import P can not pass through above-mentioned annulus
Into combination valve branch chamber 510c.
Inner spool convex platform 5122d is also from inner valve body through hole 511a prolapse upwards.
Outer valve element 5121 is moved upward to reset position under the active force of outer back-moving spring 5131, and connection combination valve is returned
Hydraulic fluid port T.
So form way to cycle oil.
Travelling control combination valve embodiment two
Originally applying example also includes inner valve body 511, and inner valve body 511 is located in combination valve core cavity 510b, outer back-moving spring 5131
Another free end is withstood on inner valve body 511.By inner valve body 511 can connect combination valve oil suction chamber 510a, combination valve core cavity 510b,
Combination valve branch chamber 510c and combination valve oil back chamber 510d.
It is preferred that the top of inner valve body 511 is provided with the inner valve body through hole 5123a being adapted with inner spool 5122, inner spool
5122 inner spool lower convex platform 5122e is put in inner valve body 511, the inner spool recess of inner spool 5122, inner spool convex platform
5122d can be passed freely through in inner valve body through hole 5123a.When inner spool 5122 moves down to operating position, inner spool convex platform
5122d is located exactly in inner valve body through hole 5123a, and inner spool convex platform 5122d cuts off combination valve oil back chamber 510d and combines
Passage between valve oil suction chamber 510a, that is, close inner valve body through hole 5123a.
Travelling control combination valve embodiment three
In the present embodiment, tubular of the combination valve control unit 514 in one end closing, the closing end of combination valve control unit 514
Combination valve core mouth is stretched out, the openend of combination valve control unit 514 is located in combination valve core cavity 510b.
Inner spool 5122 includes from top to bottom arranging inner spool trip segment 5122a, inner spool convex platform 5122d, inner spool
Recess 5122c, inner spool lower convex platform 5122e.Inner spool convex platform 5122d and inner spool lower convex platform 5122e respectively with inner valve body
511 inwall sliding contact.
It is preferred that axial dimension of the axial dimension of inner spool trip segment 5122a more than inner spool convex platform 5122d.
The top surface of compressing tablet 5141 is withstood on outer valve element 5121, the upper freedom of outer back-moving spring 5131 and interior back-moving spring 5132
End withstands on the bottom surface of compressing tablet 5141.
Travelling control combination valve example IV
In the present embodiment, mainly include pedal mounting seat 100, pedal body 200, resetting-mechanism and travelling control combination valve
500.Wherein, travelling control combination valve 500 can be using such as any one front travelling control combination valve 500, something in common, and here is not
Repeat again.
Pedal mounting seat 100 can adopt existing structure.
Pedal body 200 is hinged in pedal mounting seat 100 by structures such as hinges.
Resetting-mechanism can make subtended angle between pedal body 200 and pedal mounting seat 100 from large to small.Resetting-mechanism is main
Including pedal back-moving spring or pedal reduction torsion spring, two effect ends of pedal back-moving spring or pedal reduction torsion spring directly withstand on
In pedal mounting seat 100 and pedal body 200.Between two effect ends of pedal back-moving spring or pedal reduction torsion spring can also pass through
Ground connection is withstood in pedal mounting seat 100 and pedal body 200.
Pedal body 200 is directly or indirectly connected combination valve control unit 514.
Travelling control combination valve embodiment five
The present embodiment is used for the hydraulic control of wheel excavator, and travelling control combination valve 500 is total with Throttle Opening Control pedal
Support the use into, two direction of travel control magnetic valves 600.Open up on the outer valve bottom surface of walking control combination valve 500
Two combinations valve outlet port A, B are correspondingly arranged respectively direction of travel control electromagnetic valve I, a direction of travel and control magnetic valve
II。
The oil-in UNICOM of combination valve outlet port A and hydraulic motor, valve outlet port B is fuel-displaced with hydraulic motor for another combination
Mouth UNICOM.The combination valve oil return inlet T of travelling control combination valve 500 and the oil-out of hydraulic motor.
(1) travelling control combination valve 500 controls electromagnetic valve I from combination by combination valve import P oil-feeds, Jing direction of travel
Valve outlet port A is fuel-displaced, and the oil-in of UNICOM's hydraulic motor.Driving is advanced, acceleration mode is associated as follows：
When advance accelerates, the pedal body 200 of control pedal assembly of stepping on the gas downwards.Pedal body 200 is pacified with pedal
Subtended angle between dress seat 100 diminishes, and just correspondence controls engine to the accelerator open degree controlling organization 420 of Throttle Opening Control pedal assembly
Throttle changes from small to big.When advance is slowed down, only pedal body 200 need to be slightly unclamped.
While pushing pedal body 200, pedal body 200 is directly or indirectly pressed downward combination valve control unit 514, group
Closing valve control unit 514 promotes outer valve element 5121 to move down, one-level cut-out combination valve oil back chamber 510d, while driving compressing tablet 5141
Also outer back-moving spring 5131 is compressed downwards.
Continue firmly to step on, pedal body 200 continues to lower swing, compressing tablet 5141 compresses interior back-moving spring 5132, drive interior
Valve element 5122 is moved downward to operating position.Inner spool convex platform just blocks inner valve body through hole 5123a, two grades of cut-out combination valves
Oil back chamber 510d.
Hydraulic fluid is entered in combination valve core cavity 510b, inner valve body 511 from combination valve import P, combination valve branch chamber
510c, combination valve go out oil pocket A.Now direction of travel control electromagnetic valve I has obtained electric-opening combination valve outlet port A.
The magnetic valve import of hydraulic fluid and then Jing direction of travel control electromagnetic valve I is entered in electromagnetic valve body, from magnetic valve
Outlet combination of flow valve outlet port A, the oil-in of hydraulic motor, and then hydraulic motor is driven, realize that driving is advanced.
(2) travelling control combination valve 500 is by combination valve oil return inlet T oil return, and with advance braking action of vehicle, parking, parking
State is associated as follows：
As above reversely manipulate, trample when loosening slightly, resetting-mechanism 410 of the pedal body 200 in accelerator control device 400
Active force under, be raised above, loosen the pressure to combination valve control unit 514, then outer valve element 5121, inner spool 5122 correspondence exists
Under outer back-moving spring 5131, the elastic acting force of interior back-moving spring 5132, reset position is moved upwardly into.Now inner valve body 511 is cut
Disconnected combination valve branch chamber 510c, the connection combination valve oil back chamber 510d of outer valve 510.
When inner spool convex platform is deviate from from inner valve body through hole 5123a, that is, turn on combination valve oil suction chamber 510a and combine
Valve oil back chamber 510d a, part enters combination valve oil return from the hydraulic fluid that combination valve import P comes in from inner valve body through hole 5123a
Chamber 510d.The hydraulic fluid for so flowing into hydraulic motor oil-in from combination valve outlet port A is accordingly reduced, and drives hydraulic motor power
Reduce, car also just slowly slows down.
(3) by combination valve import P oil-feeds, Jing direction of travel controls electromagnetic valve II from combination to travelling control combination valve 500
Valve outlet port B is fuel-displaced, and associates as follows with driving retrogressing, acceleration mode：
The process of the manipulation combination valve outlet port B of travelling control combination valve 500 is roughly the same with combination valve outlet port A is flowed through,
This is repeated no more.
Combination valve outlet port A is cut off, and direction of travel control electromagnetic valve II opens combination valve outlet port B, when hydraulic fluid is from row
The combination valve import P for walking control combination valve 500 is entered, combined valve branch chamber 510c, direction of travel control electromagnetic valve II, then from
Electromagnetic valve outlet flows to the combination valve outlet port B of travelling control combination valve 500, and the oil-out of last UNICOM's hydraulic pressure horse motor is realized
Driving is retreated.
Conversely, correspondence manipulation electromagnetic valve core reverse movement can close electromagnetic valve outlet, that is to say, that correspondence closes combination
Valve outlet port B, corresponding related organization stops corresponding actions.
(4) by combination valve oil return inlet T oil return, the hydraulic motor of associated stops moving travelling control combination valve 500
Make, realize parking, parking.
Direction of travel control magnetic valve embodiment one
As shown in Figure 1 to Figure 3, in the present embodiment, direction of travel control magnetic valve mainly includes electromagnetic valve body 610, electromagnetism
Valve element 620, electromagnetism back-moving spring 624 and solenoid valve control portion.
Electromagnetic valve body 610 can be adopted in existing structure, electromagnetic valve body 610 and be provided with the electromagnetic valve work chamber being interconnected
614 and electromagnetic valve oil return chamber 615.Correspondence is provided with the magnetic valve import 611 in connection electromagnetic valve work chamber 614 on electromagnetic valve body 610
With electromagnetic valve outlet 612, and the electromagnetic valve oil return mouth 613 in connection electromagnetic valve oil return chamber 615.By solenoid valve control portion and electricity
Magnetic reset spring 624 can be such that electromagnetic valve core moves between electromagnetic valve work chamber 614 and electromagnetic valve oil return chamber 615, correspondence UNICOM
Electromagnetic valve outlet 612 and cut-out electromagnetic valve oil return mouth 613.When electromagnetic valve core obtain it is electric back and forth move to operating position when, can correspondingly join
Three-way electromagnetic valve outlet 612 and cut-out electromagnetic valve oil return mouth 613.UNICOM's switching of walk motor with hydraulic pressure oil-in, oil-out is realized,
And then realize the advance of vehicle and retreat.
Direction of travel control magnetic valve embodiment two
In the present embodiment, electromagnetic valve core includes that electromagnetic valve core lower convex platform 621, electromagnetic valve core recess 622 and electromagnetic valve core are convex
Platform 623.
Electromagnetism back-moving spring 624, and two free ends of electromagnetism back-moving spring 624 point are arranged on electromagnetic valve core lower convex platform 621
Do not withstand on electromagnetic valve core and the inwall of electromagnetic valve body 610 on.
Electromagnetic valve core recess 622 forms hydraulic medium from magnetic valve import 611 to electromagnetism together with electromagnetic valve work chamber 614
The passage of valve outlet port 612, and an oil return stroke of electromagnetic valve core is equal to the operating compression distance of electromagnetism back-moving spring 624.
Electromagnetic valve core boss 623 is arranged as follows：When electromagnetic valve core moves to the operating position of oil return stroke, electromagnetic valve core is convex
Platform 623 can block electromagnetic valve oil return mouth 613.
It is preferred that electromagnetic valve core boss 623 includes cylindrical section 623a and conical section 623b.Cylindrical section 623a is near magnetic valve
Core recess 622, cylindrical section 623a is located between magnetic valve import 611 and electromagnetic valve outlet 612, and cylindrical section 623a can UNICOM's electricity
Magnet valve import 611 and electromagnetic valve outlet 612.Conical section 623b is away from electromagnetic valve core recess 622.When electromagnetic valve core recess 622 is moved
To oil return stroke operating position when, the joining place of cylindrical section 623a and conical section 623b can block electromagnetic valve outlet 612 just.
It is preferred that electromagnetic valve body 610 is in hollow cylindrical shape, the axis along electromagnetic valve body 610 arranges electromagnetic valve work chamber
614 and electromagnetic valve oil return chamber 615.Magnetic valve import 611 is multiple, body wall of multiple magnetic valve imports 611 along electromagnetic valve body 610
It is arranged to a circle.Electromagnetic valve outlet 612 may also set up multiple, and multiple electromagnetic valve outlets 612 also set along the body wall of electromagnetic valve body 610
It is set to a circle.So, a circle magnetic valve import 611 and a circle electromagnetic valve outlet 612 are set equivalent to along electromagnetic valve body 610.
It is preferred that electromagnetic valve core is in ladder undergauge shape, one section of thick undergauge is correspondingly formed electromagnetic valve core lower convex platform 621, carefully
One section of undergauge at be correspondingly formed electromagnetic valve core recess 622.The end of electromagnetic valve core is in bullet-shaped, is correspondingly formed electromagnetic valve core
Boss 623.
Solenoid valve control portion is electromagnetic control structure, makes electromagnetic valve core in the energized state in the He of electromagnetic valve work chamber 614
Move between electromagnetic valve oil return chamber 615, solenoid valve control portion can adopt existing structure, will not be described here.
Direction of travel control magnetic valve embodiment three
The present embodiment is used for the hydraulic control of wheel excavator, supports the use with pedal mounting seat 100, pedal body 200.
Two direction of travel control magnetic valves 600 are supported the use respectively with a travelling control combination valve 500, in walking control combination valve
Two combinations valve outlet port A, the B opened up on 500 outer valve bottom surface, combination valve outlet port A, B are correspondingly arranged respectively a walking side
Electromagnetic valve II is controlled to control electromagnetic valve I, a direction of travel.
Combination valve outlet port A, combination valve outlet port B are associated respectively with the associated therewith of driving, i.e. walk motor with hydraulic pressure.
(1) direction of travel control electromagnetic valve I is associated as follows with driving forward travel state：
Combination valve oil return inlet T is closed, and the oil pressure of electromagnetic valve oil return mouth 613 is reduced.
Hydraulic fluid is entered from the combination valve import P of travelling control combination valve, and Jing magnetic valves import 611 enters electromagnetic valve body
In 610, push up electromagnetic valve core recess 622, and compress electromagnetism back-moving spring 624, warhead shape electromagnetic valve core boss 623 i.e. to
Electromagnetic valve outlet 612 is close.
Under the active force of endlessly hydraulic fluid, conical section 623b of warhead shape electromagnetic valve core boss 623 is crossed
Electromagnetic valve outlet 612, and the lower end edge of cylindrical section 623a is just just past electromagnetic valve outlet 612.So, hydraulic fluid is from walking
The combination valve import P of control combination valve is entered in electromagnetic valve body 610, then flows to travelling control combination valve from electromagnetic valve outlet 612
Combination valve outlet port A, and UNICOM's walk motor with hydraulic pressure oil-in, and then realize advancing.
Conversely, correspondence manipulation electromagnetic valve core reverse movement can close electromagnetic valve outlet 612, that is to say, that correspondence is closed
Combination valve outlet port A, corresponding related organization stops corresponding actions.
(2) direction of travel control electromagnetic valve II is associated as follows with driving fallback state：
The process of direction of travel control electromagnetic valve II controls differring primarily in that for electromagnetic valve I, walking side with direction of travel
Combination valve outlet port B is assemblied in control electromagnetic valve II.Other are same as described above, will not be described here.
So, hydraulic fluid is entered in electromagnetic valve body 610, then from electromagnetism from the combination valve import P of travelling control combination valve
Valve outlet port 612 flows to the combination valve outlet port B of travelling control combination valve, and then UNICOM, the oil-out of walk motor with hydraulic pressure, after realization
Move back.
Conversely, correspondence manipulation electromagnetic valve core reverse movement can close electromagnetic valve outlet 612, that is to say, that correspondence is closed
Combination valve outlet port B, corresponding related organization stops corresponding actions.
(3) direction of travel control electromagnetic valve I, direction of travel control electromagnetic valve II are as follows with parking, parking, job state
Association：
If described two direction of travel control magnetic valves are in off-position, the fluid of combination valve import P will be direct
By T mouth oil returns, vehicle will be in parking, parking or job state.
Above-described embodiment and accompanying drawing and non-limiting product form of the present utility model and style, any art
Appropriate change or modification that those of ordinary skill is done to it, all should be regarded as without departing from patent category of the present utility model.
Claims (7)
1. Throttle Opening Control pedal assembly, it is characterised in that：
Including pedal mounting seat, the pedal body being hinged in pedal mounting seat, and accelerator control device；
Accelerator control device includes the resetting-mechanism that the subtended angle between pedal body and pedal mounting seat can be made to reset, and control
The accelerator open degree controlling organization of engine throttle change proportional to subtended angle；And oily subtended angle and driving road speed related organization
The proportional change of hydraulic fluid.
2. Throttle Opening Control pedal assembly as claimed in claim 1, it is characterised in that：The resetting-mechanism resets including pedal
Spring or pedal reduction torsion spring, pedal back-moving spring or pedal reduction torsion spring directly or indirectly withstand on the pedal mounting seat and
On the pedal body.
3. Throttle Opening Control pedal assembly as claimed in claim 2, it is characterised in that：The accelerator open degree controlling organization includes
Mechanical accelerator open degree controlling organization.
4. Throttle Opening Control pedal assembly as claimed in claim 3, it is characterised in that：The accelerator open degree controlling organization includes
The reverse rod assembly of throttle, reverse rod assembly is directly or indirectly withstood on the pedal mounting seat and the pedal body,
And reversely rod assembly is connected throttle related organization.
5. Throttle Opening Control pedal assembly as claimed in claim 1, it is characterised in that：The accelerator open degree controlling organization includes
Electronic type accelerator opening controlling mechanism.
6. Throttle Opening Control pedal assembly as claimed in claim 5, it is characterised in that：The accelerator open degree controlling organization includes
Control wire harness and rheostat, rheostat includes winding, sliding contact end and slip exit；Slip exit is with energy roll mode
The pedal mounting seat is contacted, and slip exit can drive sliding contact end to slide on the contact road of winding, winding can electricity
Connect the control wire harness, the control end of the control wire harness electrical connection throttle related organization.
7. Throttle Opening Control pedal assembly as claimed in claim 6, it is characterised in that：Can rotate on the slip exit
Mode is provided between roller, and roller and the pedal mounting seat and is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621031897.5U CN206106946U (en) | 2016-08-31 | 2016-08-31 | Throttle control running -board assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621031897.5U CN206106946U (en) | 2016-08-31 | 2016-08-31 | Throttle control running -board assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206106946U true CN206106946U (en) | 2017-04-19 |
Family
ID=58518647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621031897.5U Active CN206106946U (en) | 2016-08-31 | 2016-08-31 | Throttle control running -board assembly |
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| Country | Link |
|---|---|
| CN (1) | CN206106946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040495A1 (en) * | 2016-08-31 | 2018-03-08 | 泉州鑫豪工程机械科技有限公司 | Throttle and traveling control combined valve assembly |
-
2016
- 2016-08-31 CN CN201621031897.5U patent/CN206106946U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040495A1 (en) * | 2016-08-31 | 2018-03-08 | 泉州鑫豪工程机械科技有限公司 | Throttle and traveling control combined valve assembly |
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