CN207191153U - A kind of aerial work platform 4-wheel Steering Control System - Google Patents
A kind of aerial work platform 4-wheel Steering Control System Download PDFInfo
- Publication number
- CN207191153U CN207191153U CN201721044199.3U CN201721044199U CN207191153U CN 207191153 U CN207191153 U CN 207191153U CN 201721044199 U CN201721044199 U CN 201721044199U CN 207191153 U CN207191153 U CN 207191153U
- Authority
- CN
- China
- Prior art keywords
- magnetic valve
- hydraulic cylinder
- oil
- dt2b
- dt1b
- 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.)
- Expired - Fee Related
Links
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
A kind of aerial work platform 4-wheel Steering Control System, including magnetic valve DT1a, magnetic valve DT1b, magnetic valve DT3, magnetic valve DT2a and magnetic valve DT2b, 5 magnetic valves are connected with control device, and 5 magnetic valves and high pressure hydraulic fluid port, oil inlet, oil-out, preceding left hydraulic cylinder, rear left hydraulic cylinder, front right hydraulic cylinder, rear right hydraulic cylinder, low-pressure oil return pipe road is corresponding connects；Two travel switches are respectively equipped with propons and back axle, four travel switches are connected with control device, and four travel switches are normally off or normally open when propons and back axle are in back middle position.This configuration avoids vehicle bridge stress structure is destroyed, avoid and cause the harm such as vehicle bridge damage and fracture, ensure that the good steering behaviour of vehicle, vehicle operating experience is good, extends service life, while avoiding causes human pilot to come to harm.
Description
Technical field：
It the utility model is related to a kind of aerial work platform 4-wheel Steering Control System.
Background technology：
At present, the aerial work platform of four-wheel steering driving is when carrying out various steering operation switchings, if without returning
Middle position centering, carry out repeatedly turn to handover operation after, can be produced between propons left and right wheels, back axle left and right wheels and front-rear axle by
Power, accumulative stress can destroy vehicle bridge stress structure, cause vehicle bridge to damage and the harm such as fracture, influence the steering behaviour, whole of vehicle
Car operating experience, service life is shortened, while easily cause human pilot to come to harm.
Utility model content：
The utility model provides a kind of aerial work platform 4-wheel Steering Control System, avoids and destroys vehicle bridge stress
Structure, avoiding and cause the harm such as vehicle bridge damage and fracture, ensure that the good steering behaviour of vehicle, vehicle operating experience is good,
Service life is extended, while avoiding causes human pilot to come to harm, and solves problems of the prior art.
The utility model is that technical scheme is used by solving above-mentioned technical problem：
A kind of aerial work platform 4-wheel Steering Control System, including magnetic valve DT1a, magnetic valve DT1b, magnetic valve
DT3, magnetic valve DT2a and magnetic valve DT2b, magnetic valve DT1a, magnetic valve DT1b, magnetic valve DT3, magnetic valve DT2a and magnetic valve
DT2b is connected with control device, and the oil inlet of the magnetic valve DT1a and magnetic valve DT1b are connected with high pressure hydraulic fluid port, magnetic valve
DT1a oil-out is connected with preceding left hydraulic cylinder, and magnetic valve DT1b oil-out is connected with magnetic valve DT2a oil inlet,
Magnetic valve DT2a oil-out is connected with rear left hydraulic cylinder, and magnetic valve DT2b oil inlet is connected with front right hydraulic cylinder, electricity
Magnet valve DT2b oil-out is connected with rear right hydraulic cylinder, and magnetic valve DT3 oil-out is connected with low-pressure oil return pipe road, oil inlet
It is connected with the pipeline between front right hydraulic cylinder and magnetic valve DT2b oil inlet；Two rows are respectively equipped with propons and back axle
Cheng Kaiguan, four travel switches are connected with control device, and when propons and back axle are in back middle position, four travel switches are normal
Closed state or normally open.
The utility model is avoided using said structure and destroys vehicle bridge stress structure, is avoided and is caused vehicle bridge to damage and be broken
Deng harm, the good steering behaviour of vehicle is ensure that, vehicle operating experience is good, extends service life, while avoids and cause
Human pilot comes to harm.
Brief description of the drawings：
Fig. 1 is structure principle chart of the present utility model.
Embodiment：
For the technical characterstic for illustrating this programme can be understood, below by embodiment, and its accompanying drawing is combined, to this reality
It is described in detail with new.
As shown in figure 1, a kind of aerial work platform 4-wheel Steering Control System, including magnetic valve DT1a, magnetic valve
DT1b, magnetic valve DT3, magnetic valve DT2a and magnetic valve DT2b, magnetic valve DT1a, magnetic valve DT1b, magnetic valve DT3, magnetic valve
DT2a and magnetic valve DT2b are connected with control device, oil inlet and the high pressure hydraulic fluid port of the magnetic valve DT1a and magnetic valve DT1b
It is connected, magnetic valve DT1a oil-out is connected with preceding left hydraulic cylinder, magnetic valve DT1b oil-out and entering for magnetic valve DT2a
Hydraulic fluid port is connected, and magnetic valve DT2a oil-out is connected with rear left hydraulic cylinder, magnetic valve DT2b oil inlet and front right hydraulic pressure
Cylinder is connected, and magnetic valve DT2b oil-out is connected with rear right hydraulic cylinder, magnetic valve DT3 oil-out and low-pressure oil return pipe road
It is connected, the pipeline between oil inlet and front right hydraulic cylinder and magnetic valve DT2b oil inlet is connected；Divide on propons and back axle
Not She You two travel switches, four travel switches are connected with control device, when propons and back axle are in back middle position four
Travel switch is normally off or normally open.
By oblique steering to the right, exemplified by travel switch is normally off, it is oblique to the right when, vehicle bridge presses the near front wheel, left back
Travel switch is taken turns, switch switchs to off-state, and control device judges the working condition of now each magnetic valve, so as to judge now
Steering state；When operator switches steering direction, first carry out acting during four-wheel returns, when four switches are all in normally off
When, system judges that vehicle is in back middle state；Commutation action is performed again in next step.
Above-mentioned embodiment cannot function as the limitation to scope of protection of the utility model, for the skill of the art
For art personnel, any alternate modification or conversion made to the utility model embodiment all fall within guarantor of the present utility model
In the range of shield.
Part is not described in detail for the utility model, is the known technology of those skilled in the art of the present technique.
Claims (1)
- A kind of 1. aerial work platform 4-wheel Steering Control System, it is characterised in that：Including magnetic valve DT1a, magnetic valve DT1b, magnetic valve DT3, magnetic valve DT2a and magnetic valve DT2b, magnetic valve DT1a, magnetic valve DT1b, magnetic valve DT3, magnetic valve DT2a and magnetic valve DT2b are connected with control device, oil inlet and the high pressure hydraulic fluid port of the magnetic valve DT1a and magnetic valve DT1b It is connected, magnetic valve DT1a oil-out is connected with preceding left hydraulic cylinder, magnetic valve DT1b oil-out and entering for magnetic valve DT2a Hydraulic fluid port is connected, and magnetic valve DT2a oil-out is connected with rear left hydraulic cylinder, magnetic valve DT2b oil inlet and front right hydraulic pressure Cylinder is connected, and magnetic valve DT2b oil-out is connected with rear right hydraulic cylinder, magnetic valve DT3 oil-out and low pressure return line It is connected, the pipeline between oil inlet and front right hydraulic cylinder and magnetic valve DT2b oil inlet is connected；Divide on propons and back axle Not She You two travel switches, four travel switches are connected with control device, when propons and back axle are in back middle position four Travel switch is normally off or normally open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721044199.3U CN207191153U (en) | 2017-08-18 | 2017-08-18 | A kind of aerial work platform 4-wheel Steering Control System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721044199.3U CN207191153U (en) | 2017-08-18 | 2017-08-18 | A kind of aerial work platform 4-wheel Steering Control System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207191153U true CN207191153U (en) | 2018-04-06 |
Family
ID=61794031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721044199.3U Expired - Fee Related CN207191153U (en) | 2017-08-18 | 2017-08-18 | A kind of aerial work platform 4-wheel Steering Control System |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207191153U (en) |
-
2017
- 2017-08-18 CN CN201721044199.3U patent/CN207191153U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2927093B1 (en) | Follow-up steering control system of multi-axle automobile crane and multi-axle automobile crane | |
| RU2604466C1 (en) | Multimode steering valve with electric control, hydraulic steering system and wheel-type valve | |
| CN104002784A (en) | Brake control system of multi-wheel-train brake machine wheel | |
| CN105523177A (en) | Aircraft brake ground protection system and method thereof | |
| CN102582605A (en) | Automotive distributed electronic hydraulic braking system with pressure retaining valves | |
| CN203766749U (en) | Electro-hydraulic composite braking upper-layer controller based on integrated brake master cylinder | |
| CN207191153U (en) | A kind of aerial work platform 4-wheel Steering Control System | |
| CN105292248A (en) | Automobile rear wheel steering electromagnetic alignment cylinder and use method thereof | |
| CN110371186B (en) | Integrated chassis four-wheel steering device, working method and multifunctional working vehicle | |
| CN105564639A (en) | Dual-redundancy nose-wheel steering and shimmy-damping system | |
| CN106795899B (en) | Three-position cylinder and method for controlling three-position cylinder | |
| CN204222964U (en) | Wagon drill | |
| CN201826840U (en) | Double-heightening system of coal-winning machine | |
| CN204124120U (en) | The emergency brake system of full hydraulic drive roller | |
| CN102328686A (en) | Multi-axle dispersed power steering system for load-carrying vehicle | |
| CN104015797A (en) | Gadding car | |
| CN102390428A (en) | Control method of steering central shaft and hydraulic control system | |
| CN103541935B (en) | Hydraulic system and vehicle comprising same | |
| CN208102101U (en) | Special purpose vehicle and its all-wheel control system | |
| CN202152068U (en) | Dispersed power steering system for multi-axle load-carrying vehicle | |
| CN205706644U (en) | The clematis stem road ABS control system mated with ECAS lift bridge and vehicle | |
| CN205149967U (en) | Two front axle are multiloop hydrostatic steering system for heavy -duty car | |
| CN103802816B (en) | The fork truck of full suspension type body frame structure for automotive | |
| CN103600738A (en) | Automobile brake control system | |
| CN206254995U (en) | A kind of vapour drags all-in-one brake system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20200818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |