CN207864605U - A kind of electrichydraulic control walking steerable system of crawler dozer - Google Patents
A kind of electrichydraulic control walking steerable system of crawler dozer Download PDFInfo
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- CN207864605U CN207864605U CN201820069493.8U CN201820069493U CN207864605U CN 207864605 U CN207864605 U CN 207864605U CN 201820069493 U CN201820069493 U CN 201820069493U CN 207864605 U CN207864605 U CN 207864605U
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- electric
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- valve
- reducing valve
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Abstract
The utility model discloses a kind of electrichydraulic control of crawler dozer walking steerable systems comprising：Electric-hydraulic proportion gear shift valve group；Electric-hydraulic proportion braking in a turn valve group；Speed-change and gearshift controller, the speed-change and gearshift controller are connect with electric-hydraulic proportion gear shift valve group；Skid steer controller, the skid steer controller are connect with electric-hydraulic proportion braking in a turn valve group；Electric control handle, the electric control handle are connect with speed-change and gearshift controller and skid steer controller respectively；Gear indicator, the gear indicator are connect with electric control handle；Electric control braking pedal, the electric control braking pedal are connect with electric-hydraulic proportion braking in a turn valve group.The utility model has the advantages of convenient installation, and performance is stablized, and fast response time can effectively reduce the generation of idle stroke problem, and in terms of maneuverability, more convenient, laborsaving compared with mechanical handling pull rod, flexible axle and pedal, so that pilot control is got up more comfortable.
Description
Technical field
Walk steerable system the utility model is related to a kind of electrichydraulic control, and in particular to a kind of crawler dozer it is electro-hydraulic
Control walking steerable system.
Background technology
In the prior art, the traveling steerable system of crawler dozer includes gear change, handling maneuver and braking maneuver
Three parts use pushing-pulling flexible shaft, connecting rod to manipulate substantially.
The defects of there are steering forces for above-mentioned traveling steerable system greatly, arrangement is inconvenient, maintenance and debugging is difficult.
Utility model content
To solve the above-mentioned problems, the electrichydraulic control to provide a kind of crawler dozer is walked to be manipulated the utility model
System.
In order to achieve the above objectives, the technical solution of the utility model is as follows：
A kind of electrichydraulic control walking steerable system of crawler dozer, the electrichydraulic control walking steerable system include：
The gearbox of electric-hydraulic proportion gear shift valve group, the electric-hydraulic proportion gear shift valve group and crawler dozer connects
It connects；
Electric-hydraulic proportion braking in a turn valve group, the electric-hydraulic proportion braking in a turn valve group respectively with the steering of crawler dozer
Clutch is connected with brake booster；
Speed-change and gearshift controller, the speed-change and gearshift controller are connect with electric-hydraulic proportion gear shift valve group；
Skid steer controller, the skid steer controller are connect with electric-hydraulic proportion braking in a turn valve group；
Electric control handle, the electric control handle are connect with speed-change and gearshift controller and skid steer controller respectively；
Gear indicator, the gear indicator are connect with electric control handle；
Electric control braking pedal, the electric control braking pedal are connect with electric-hydraulic proportion braking in a turn valve group.
In a preferred embodiment of the utility model, the electric control handle includes that electric control handle seat and electric control handle shake
Bar, the electric control handle rocking bar are arranged on electric control handle seat in which can rock from side to side, the electric control handle rocking bar be equipped with advance,
It retreats switching switch, shift-up button, downshift button, turn to enabled switch and emergency stop button.
In a preferred embodiment of the utility model, the electric-hydraulic proportion gear shift valve group includes overflow valve,
One grade of electro-hydraulic proportional reducing valve, second gear electro-hydraulic proportional reducing valve, third gear electro-hydraulic proportional reducing valve, fourth speed electric-hydraulic proportion subtract
The torque-converters of pressure valve and fifth speed electro-hydraulic proportional reducing valve, the overflow valve and crawler dozer connects, first grade of electro-hydraulic ratio
Example pressure reducing valve, second gear electro-hydraulic proportional reducing valve, third gear electro-hydraulic proportional reducing valve, fourth speed electro-hydraulic proportional reducing valve and the 5th
Shelves electro-hydraulic proportional reducing valve is connect with speed-change and gearshift controller respectively.
In a preferred embodiment of the utility model, the electric-hydraulic proportion braking in a turn valve group includes the first electro-hydraulic ratio
Example pressure reducing valve, the second electro-hydraulic proportional reducing valve, third electro-hydraulic proportional reducing valve, the 4th electro-hydraulic proportional reducing valve, the first electromagnetism change
To valve and the second solenoid directional control valve, first electro-hydraulic proportional reducing valve, the second electro-hydraulic proportional reducing valve, third electric-hydraulic proportion subtract
Pressure valve, the 4th electro-hydraulic proportional reducing valve, the first solenoid directional control valve and the second solenoid directional control valve are helped with steering cluth, braking respectively
Power device connects.
In a preferred embodiment of the utility model, the electric control braking pedal travel is 0 °~19 °, generation 0~
The pressure of the voltage control hydraulic braking system of 15V, realizes different brake force.
The utility model has the beneficial effects that：
The utility model has the advantages of convenient installation, and performance is stablized, and fast response time can effectively reduce the generation of idle stroke problem, and
It is more convenient, laborsaving compared with mechanical handling pull rod, flexible axle and pedal and in terms of maneuverability, so that pilot control is got up more easypro
It is suitable.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of electric control handle；
Fig. 3 is the structural schematic diagram of electric-hydraulic proportion gear shift valve group；
Fig. 4 is the structural schematic diagram of electric-hydraulic proportion braking in a turn valve group.
Specific implementation mode
In order to make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to Fig. 1 to Fig. 4, the electrichydraulic control walking steerable system of crawler dozer provided by the utility model, packet
Electric control handle 100, electric control braking pedal 200, speed-change and gearshift controller 300, skid steer controller 400, electric-hydraulic proportion is included to become
Quick change keep off valve group 500, electric-hydraulic proportion braking in a turn valve group 600 into gearshift display device 700.
Electric control handle 100 is the operating terminal of the application, respectively with speed-change and gearshift controller 300 and skid steer
Controller 400 connects, and operation signal can be sent respectively to speed-change and gearshift controller 300 and skid steer controller 400.
Electric control handle 100 specifically includes electric control handle seat 101 and electric control handle rocking bar 102, electric control handle rocking bar 102
Be arranged on electric control handle seat 101 with can rocking from side to side, electric control handle seat 101 and electric control handle rocking bar 102 in the prior art
Handle set it is identical with handle rocker.
It is equipped on electric control handle rocking bar 101 and advances, retreat switching switch 11, shift-up button 12, downshift button 13, turn to
Enabled switch 14 and emergency stop button 15.
When that will advance, retreat switching switch 11 by the position " F ", bull-dozer is switched to drive shift at this time；Will advance, after
Switching switch 11 is moved back by the position " R ", bull-dozer is switched to reverse drive gear at this time, will advance, retreat switching switch 11 by the position " N "
When setting, bull-dozer is neutral gear at this time.
The switch 12 that shifts up is clicked, bull-dozer current gear increases by one grade, and highest adds to third gear；Click downshift switch
13, bull-dozer current gear reduces one grade；
It pins steering and enables switch 14, electric control handle rocking bar 102 is pushed to the left, bull-dozer can turn left；By electric control handle
Rocking bar 102 pushes to the right, and bull-dozer can turn right.
The stroke or so of electric control handle rocking bar 102 is 25 °.
When pinning emergency stop button 15, bull-dozer emergency braking, release then releases braking.
In addition, being also associated with gearshift display device 700 on electric control handle 100, gearshift display device 700 is for showing current soil-shifting
The working condition of machine gear information and speed-change and gearshift controller 300.
Speed-change and gearshift controller 300 is connect with electric-hydraulic proportion gear shift valve group 500, is for receiving automatically controlled hand
Gear shifting signal on handle 100, and electric-hydraulic proportion gear shift valve group 500 is controlled according to the gear shifting signal received, from
And realize the flexible engagement of each gear clutch of speed-varying box of bulldozer, separation process.
Skid steer controller 400 is connect with electric-hydraulic proportion braking in a turn valve group 600, is for receiving automatically controlled hand
Electronic signal on handle 100, and electric-hydraulic proportion braking in a turn valve group 600 is controlled according to the electronic signal received, from
And realize the engagement of bull-dozer steering cluth and brake, release process.
Electric-hydraulic proportion gear shift valve group 500, connect with the gearbox of crawler dozer, can be according to speed-change and gearshift
The control signal of controller 300, operates the gearbox of crawler dozer.
Electric-hydraulic proportion gear shift valve group 500 includes that overflow valve 26, first grades of electro-hydraulic proportional reducing valves 23, second gears are electro-hydraulic
Proportional pressure-reducing valve 21, third gear electro-hydraulic proportional reducing valve 22, fourth speed electro-hydraulic proportional reducing valve 24 and fifth speed electric-hydraulic proportion subtract
Pressure valve 25.
Overflow valve 26 is connect with the torque-converters of crawler dozer, and overflow valve 26 can control this system safe pressure to be
3.0Mpa, after reaching this pressure, overflow valve 26 can be opened to torque-converters fuel feeding.
First grade of electro-hydraulic proportional reducing valve 23 sets pressure as 1.25Mpa, second gear electro-hydraulic proportional reducing valve 21, third gear
Electro-hydraulic proportional reducing valve 22, fourth speed electro-hydraulic proportional reducing valve 24 and fifth speed electro-hydraulic proportional reducing valve 25 set pressure as
2.0Mpa。
It is electric that gear shift knobs in operation electric-hydraulic proportion gear shift valve group 500 can be such that each shelves electro-hydraulic proportional reducing valve obtains, oil
Liquid enters each shelves clutch by the spool of electric-hydraulic proportion gear shift valve group 500.If pressure is more than setting value, respectively keep off electro-hydraulic
The in-line of proportional pressure-reducing valve is closed, and the fluid in each shelves clutch can rush down in gearbox body, and pressure is made to drop to setting value；Pressure
Power is less than setting value, and each electro-hydraulic proportional reducing valve oil return line that keeps off is closed, and in-line is again turned on, and pressure rises；In this under state,
Pressure stability ensures the combination for being respectively discharged to clutch in setting value.After each gear electro-hydraulic proportional reducing valve reaches setting pressure, overflow valve
26 open to torque-converters fuel feeding.
Electric-hydraulic proportion braking in a turn valve group 600, respectively with the steering cluth of crawler dozer and brake booster
Connection.
Electric-hydraulic proportion braking in a turn valve group 600 include the first electro-hydraulic proportional reducing valve 33, the second electro-hydraulic proportional reducing valve 34,
Third electro-hydraulic proportional reducing valve 35, the 4th electro-hydraulic proportional reducing valve 36, the first solenoid directional control valve 31 and the second solenoid directional control valve 32,
First electro-hydraulic proportional reducing valve 33, the second electro-hydraulic proportional reducing valve 34, third electro-hydraulic proportional reducing valve 35, the 4th electric-hydraulic proportion subtract
Pressure valve 36, the first solenoid directional control valve 31 and the second solenoid directional control valve 32 are connect with steering cluth, brake booster respectively.
When to the right or when electric control handle 100 is moved on a left side, skid steer controller 400 can control third electro-hydraulic proportional reducing valve
35 or the 4th electro-hydraulic proportional reducing valve 36 it is electric, the oil circuit of fluid to steering cluth is opened, and pressure is with electric control handle rocking bar
102 angles moved become larger and become larger so that act to clutch part；
When electric control handle rocking bar 102, which moves angle, reaches 12.5 degree, when clutch pressure reaches maximum 1.57Mpa, from
Clutch is completely disengaged.When moving electric control handle rocking bar 102 again, the first electro-hydraulic proportional reducing valve 33 or the second electro-hydraulic proportional reducing valve
34 must be electric, until the oil circuit of brake booster is opened, pressure is as the angle that electric control handle rocking bar 102 is moved becomes larger and becomes larger, knot
Fruit generates braking action；
When electric control handle rocking bar 102 moves stroke terminal to (25 degree), return pressure 1.66Mpa completes brake operating.
Similarly when stepping on the generation braking action of electric control braking pedal 200, the first electro-hydraulic proportional reducing valve 33 or the second
Electro-hydraulic proportional reducing valve 34 must be electric, until the oil circuit of brake booster is opened, pressure becomes larger with the stroke of electric control braking pedal 200
And become larger, as a result generate braking action；
When pressing the emergency stop button 15 on electric control handle rocking bar 102, the first solenoid directional control valve 31 and the second electromagnetism
32 energized action of reversal valve, fluid are directly entered brake booster from pump, and oil pressure is 2.16Mpa at this time.
200 stroke of electric control braking pedal is 0~19 °, generates the pressure of the voltage control hydraulic braking system of 0~5V, real
Existing different brake force.
Here is the specific work process of the utility model：
When control electric control handle 100, will advance, retrogressing switching switch 11 is switched to advance by the position " F ", bull-dozer is arrived
Shelves；It will advance, and retreat switching switch 11 and press and arrive the position " R ", bull-dozer is switched to reverse drive gear, will advance, and retreat and switch switch 11
By to the position " N ", being neutral gear；The switch 12 that shifts up is clicked, bull-dozer current gear increases by one grade, and highest adds to third gear；By one
Lower downshift switch 13, bull-dozer current gear reduce one grade, corresponding gear information will be shown on gearshift display device 700；It presses
Switch 14 is firmly enabled, rocking bar is pushed to the left, bull-dozer turns left；Rocking bar is pushed to the right, bull-dozer is turned right.Electric control handle 100
Left and right is 25 °；Emergency stop button 15, bull-dozer emergency braking are pinned, release then releases braking.When control electric control braking is stepped on
Plate 200 realizes different brake force according to the stroke of brake pedal.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (5)
- The steerable system 1. a kind of electrichydraulic control of crawler dozer is walked, which is characterized in that the electrichydraulic control walking manipulates System includes：The gearbox of electric-hydraulic proportion gear shift valve group, the electric-hydraulic proportion gear shift valve group and crawler dozer connects；Electric-hydraulic proportion braking in a turn valve group, the electric-hydraulic proportion braking in a turn valve group respectively with the steering clutch of crawler dozer Device is connected with brake booster；Speed-change and gearshift controller, the speed-change and gearshift controller are connect with electric-hydraulic proportion gear shift valve group；Skid steer controller, the skid steer controller are connect with electric-hydraulic proportion braking in a turn valve group；Electric control handle, the electric control handle are connect with speed-change and gearshift controller and skid steer controller respectively；Gear indicator, the gear indicator are connect with electric control handle；Electric control braking pedal, the electric control braking pedal are connect with electric-hydraulic proportion braking in a turn valve group.
- The steerable system 2. a kind of electrichydraulic control of crawler dozer according to claim 1 is walked, which is characterized in that institute It includes electric control handle seat and electric control handle rocking bar to state electric control handle, and the electric control handle rocking bar is arranged automatically controlled in which can rock from side to side On handle set, the electric control handle rocking bar, which is equipped with, to advance, retreats switching switch, shift-up button, downshift button, turns to enabled open Pass and emergency stop button.
- The steerable system 3. a kind of electrichydraulic control of crawler dozer according to claim 1 is walked, which is characterized in that institute It includes overflow valve, first grade of electro-hydraulic proportional reducing valve, second gear electro-hydraulic proportional reducing valve, to state electric-hydraulic proportion gear shift valve group Third gear electro-hydraulic proportional reducing valve, fourth speed electro-hydraulic proportional reducing valve and fifth speed electro-hydraulic proportional reducing valve, the overflow valve and shoe The torque-converters of belt bull-dozer connects, the electro-hydraulic ratio of first grade of electro-hydraulic proportional reducing valve, second gear electro-hydraulic proportional reducing valve, third gear Example pressure reducing valve, fourth speed electro-hydraulic proportional reducing valve and fifth speed electro-hydraulic proportional reducing valve connect with each gear clutch of gearbox respectively It connects.
- The steerable system 4. a kind of electrichydraulic control of crawler dozer according to claim 1 is walked, which is characterized in that institute It includes the first electro-hydraulic proportional reducing valve, the second electro-hydraulic proportional reducing valve, third electric-hydraulic proportion to state electric-hydraulic proportion braking in a turn valve group Pressure reducing valve, the 4th electro-hydraulic proportional reducing valve, the first solenoid directional control valve and the second solenoid directional control valve, the first electric-hydraulic proportion decompression Valve, the second electro-hydraulic proportional reducing valve, third electro-hydraulic proportional reducing valve, the 4th electro-hydraulic proportional reducing valve, the first solenoid directional control valve and Second solenoid directional control valve is connect with steering cluth, brake booster respectively.
- The steerable system 5. a kind of electrichydraulic control of crawler dozer according to claim 1 is walked, which is characterized in that institute It is 0 °~19 ° to state electric control braking pedal travel, generates the pressure of the voltage control hydraulic braking system of 0~15V, realizes different Brake force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069493.8U CN207864605U (en) | 2018-01-16 | 2018-01-16 | A kind of electrichydraulic control walking steerable system of crawler dozer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069493.8U CN207864605U (en) | 2018-01-16 | 2018-01-16 | A kind of electrichydraulic control walking steerable system of crawler dozer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864605U true CN207864605U (en) | 2018-09-14 |
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ID=63461776
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820069493.8U Expired - Fee Related CN207864605U (en) | 2018-01-16 | 2018-01-16 | A kind of electrichydraulic control walking steerable system of crawler dozer |
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| CN (1) | CN207864605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811813A (en) * | 2019-02-28 | 2019-05-28 | 山推工程机械股份有限公司 | A kind of electric control handle, bull-dozer and bull-dozer ambulation control method |
| CN114251444A (en) * | 2021-12-17 | 2022-03-29 | 徐州徐工传动科技有限公司 | Electric control gearbox, control system thereof and digging and loading machine thereof |
-
2018
- 2018-01-16 CN CN201820069493.8U patent/CN207864605U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811813A (en) * | 2019-02-28 | 2019-05-28 | 山推工程机械股份有限公司 | A kind of electric control handle, bull-dozer and bull-dozer ambulation control method |
| CN114251444A (en) * | 2021-12-17 | 2022-03-29 | 徐州徐工传动科技有限公司 | Electric control gearbox, control system thereof and digging and loading machine thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220216 Address after: 201306 room 786, building a, No. 888, Huanhu West 2nd Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: Pushler (Shanghai) mechanical equipment Co.,Ltd. Address before: 201306 room 505, plant 12, No. 600, Xinyuan South Road, Nicheng Town, Pudong New Area, Shanghai Patentee before: SHANGHAI PENGPU MACHINE BUILDING PLANT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20220116 |