CN201408352Y

CN201408352Y - Aerial working platform control system

Info

Publication number: CN201408352Y
Application number: CN2009200391419U
Authority: CN
Inventors: 徐其军; 魏红林; 王贤荣
Original assignee: NANJING AEROSUN-SOOSAN ELECTRO-HYDRAULIC SPECIAL-PURPOSE VEHICLE Co Ltd
Current assignee: NANJING AEROSUN-SOOSAN ELECTRO-HYDRAULIC SPECIAL-PURPOSE VEHICLE Co Ltd
Priority date: 2009-04-28
Filing date: 2009-04-28
Publication date: 2010-02-17
Anticipated expiration: 2019-04-28

Abstract

The utility model relates to an aerial working platform control system and belongs to the field of aerial working facilities control technology. The control system comprises at least one PLVC controller. An operation input end of the PLVC controller is respectively connected with a corresponding control switch and a corresponding operating handle. A sensor input end of the PLVC controller is respectively connected with corresponding linear, angle and inclination sensors. An alarm indication output end of the PLVC controller is respectively connected with a corresponding indicating lamp and analarm device. An actuating mechanism control output end of the PLVC controller is respectively connected with a corresponding actuating mechanism control valve. Adopting the utility model can realizevarious required automatic operations control and at the same time can guarantee aloft work safe and reliable so as to satisfy the requirements for the aerial working platform in various industries, such as shipbuilding industry, construction industry, electric power industry, airport industry, harbour machines manufacture industry and the like.

Description

The aerial work platform control system

Technical field

The utility model relates to a kind of control system, and especially a kind of aerial work platform control system belongs to work high above the ground facility control technology field.

Background technology

Along with developing rapidly of market economy, aerial work platform is made industry and has been obtained using widely building shipping agency industry, building trade, power industry, airport industry and port machine, especially in building the shipping agency industry, around hull, take a circle framing scaffold and need expend a large amount of time, different outboard shapes have nothing in common with each other, so whenever repair, make a ship, framing scaffold all must be built again.And build operating efficiency is significantly improved by aerial work platform.

The control of existing aerial work platform is perfect inadequately, for building ship and so on circumstance complication and abominable work high above the ground environment, the unavoidable hidden danger that has influence stability and reliability and job safety.

The utility model content

The purpose of this utility model is: at prior art improve part inadequately, propose a kind ofly to realize that various required automatic mistakes do control and can guarantee the aerial work platform control system that work high above the ground is safe and reliable.

In order to reach above purpose, the basic technical scheme of the utility model aerial work platform control system is: comprise controller, described controller is at least one PLVC (FPGA (Field Programmable Gate Array) valve positioner) controller, the operation input end of described PLVC controller connects corresponding manipulation of switches and operating grip respectively, the sensing input end connects corresponding length, angle and inclination sensor respectively, the warning indication output end connects corresponding pilot lamp and alarm appliance respectively, and the actuating mechanism controls output terminal connects corresponding actuating mechanism controls valve respectively.

During work, the PLVC controller can be controlled corresponding valve according to the input of each manipulation of switches and operating grip, realizes the operational motion of required aerial work platform; By extension elongation, fluctuating angle and the tilt condition of sensor aerial work platform, when noting abnormalities, in time send warning simultaneously.This shows, after adopting the utility model, can realize that various required automatic mistakes do control, can guarantee that work high above the ground is safe and reliable simultaneously, thereby satisfy the demand of industries such as shipping agency industry, building trade, power industry, airport industry and port machine manufacturing of building aerial work platform.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the control circuit schematic diagram of an embodiment of the utility model.

Among the figure: 1, revolving bed PLVC controller 2, operation slot PLVC controller 3, the working arm ratio handle 4 that stretches, working arm fluctuating/rotation ratio handle 5, walking/ratio of turning handle 6, hummer 7, inclination pilot lamp 8, scope of work restriction pilot lamp 9, system failure pilot lamp 10, operation slot rotary switch 11, operation slot leveling switch 12, walking speed-sensitive switch 13, foot-switch 14, engine acceleration switch 15, horn switch 16, emergency stop switch 17, linear transducer 18, angular transducer 19, very color liquid

crystal touch screen

20,5 degree inclination sensors 21, working arm 0 degree is following near switch 22, the working arm withdrawal puts in place near switch 23, walking switch 24, pole changer 25, working arm fluctuating switch 26, working arm rotary switch 27, the working arm switch 28 that stretches, operation slot rotary switch 29, operation slot leveling switch 30, revolving bed and operation slot operation switch 31, walking proportioning valve 32, ratio of turning valve 33, working arm fluctuating proportioning valve 34, working arm rotation proportioning valve 35, the working arm proportioning valve 36 that stretches, operation slot rotation proportioning valve 37, operation slot leveling proportioning valve 38, engine accelerating relay 39, oil circuit solenoid directional control valve 40, alarm 41, inclination pilot lamp 42, tire stretches out and detects travel switch 43, emergency stop switch 44, program is downloaded debugging interface 45, program is downloaded debugging interface

Embodiment

Embodiment one

The aerial work platform control system of present embodiment as shown in Figure 1, contain two PLVC controllers---revolving bed PLVC controller 1 and operation slot PLVC controller 2, two PLVC controllers are located at respectively on the revolving bed and operation slot of aerial work platform, at revolving bed PLVC controller 1 place and operation slot PLVC controller 2 places respectively and connect 120 ohm terminal resistance, adopt the CAN-BUS bus communication to connect each other, follow the CANopen agreement.

The operation input end of operation slot PLVC controller 2 connects following each manipulation of switches and operating grip respectively---operation slot rotary switch 10, operation slot leveling switch 11, walking speed-sensitive switch 12, foot-switch 13, engine acceleration switch 14, horn switch 15, emergency stop switch 16, working arm stretch ratio handle 3, working arm fluctuating/rotation ratio handle 4, walking/ratio of turning handle 5, its warning indication output end connect hummer 6, inclination pilot lamp 7, scope of work restriction pilot lamp 8, system failure pilot lamp 9 respectively.

The operation input end of revolving bed PLVC controller 1 connects following the withdrawal near switch 21, working arm of working arm 0 degree respectively and puts in place near switch 22, walking switch 23, pole changer 24, working arm fluctuating switch 25, working arm rotary switch 26, the flexible switch 27 of working arm, operation slot rotary switch 28, operation slot leveling switch 29, revolving bed and operation slot operation switch 30; The linear transducer 17 that its sensing input end connects respectively,

angular transducer

18,5 degree inclination sensors 20; Its warning indication output end is device 40 taking alarm and inclination pilot lamp 41 respectively, and its actuating mechanism controls output terminal connects walking proportioning valve 31, ratio of turning valve 32, working arm fluctuating proportioning valve 33, working arm rotation proportioning valve 34, the flexible proportioning valve 35 of working arm, operation slot rotation proportioning valve 36, operation slot leveling proportioning valve 37, engine accelerating relay 38, oil circuit solenoid directional control valve 39 respectively.

Walking switch 23, pole changer 24, working arm fluctuating switch 25, working arm rotary switch 26, the working arm switch 27 that stretches, operation slot rotary switch 28, operation slot leveling switch 29 is used for the operational motion signal of revolving bed operator's console is input to the digital quantity input port DN1 of revolving bed PLVC controller 1, DN2, DN 3, DN4, DN5, DN6, DN7, DN8, DN9, DN10, DN11, DN12, DN13, DN14, revolving bed and operation slot operation switch 30 are used for controlling the priority of revolving bed operator's console and operation slot operator's console, if revolving bed and operation slot operation switch 30 be transformed into revolving bed then the action of revolving bed operator's console effectively and operation slot operator's console exercise void, then revolving bed operator's console exercise void and the action of operation slot operator's console be effectively if revolving bed and operation slot operation switch 30 are transformed into operation slot.Revolving bed PLVC controller 1 is according to the transition status of revolving bed and operation slot operation switch 30 and according to walking switch 23, pole changer 24, working arm fluctuating switch 25, working arm rotary switch 26, the working arm switch 27 that stretches, operation slot rotary switch 28, the actuating signal of operation slot leveling switch 29 is with the corresponding walking proportioning valve 31 that drives of PWM current closed-loop mode, ratio of turning valve 32, working arm fluctuating proportioning valve 33, working arm rotation proportioning valve 34, the working arm proportioning valve 35 that stretches, operation slot rotation proportioning valve 36, operation slot leveling proportioning valve 37.

In addition, when revolving bed and operation slot operation switch 30 is transformed into operation slot and foot-switch 13 actions, the operation element arm ratio handle 3 that stretches, working arm fluctuating/rotation ratio handle 4, walking/ratio of turning handle 5, operation slot rotary switch 10, operation slot leveling switch 11, its handle and switching signal are delivered to operation slot PLVC controller 2, operation slot PLVC controller 2 sends to revolving bed PLVC controller 1 by the CAN-BUS bus with actuating signal, drives walking proportioning valve 31 by revolving bed PLVC controller 1 with PWM current closed-loop mode correspondence, ratio of turning valve 32, working arm fluctuating proportioning valve 33, working arm rotation proportioning valve 34, the working arm proportioning valve 35 that stretches, operation slot rotation proportioning valve 36, operation slot leveling proportioning valve 37 carries out each action.

Linear transducer 17 is installed in the working arm side and is used for testing arm extension elongation, angular transducer 18 is installed in and is used for testing arm fluctuating angle on the working arm, linear transducer 17, the analog quantity input AN1 of angular transducer 18 and revolving bed PLVC controller 1, the AN2 connection is input to detected length and angle signal in the revolving bed PLVC controller 1 respectively, whether four tires stretch out and detect travel switch 42 and be installed in respectively and be used for surveying four tires on four tire telescopic shafts and all stretch out, stretch out entirely with any one according to four tires and not stretch out this two states entirely, signal according to linear transducer 17 and angular transducer 18, revolving bed PLVC controller 1 calculates the current scope of work of car load, control by relatively working arm being moved with the permission safety work scope of program inner setting, realize the automatic control of safety work scope, when reaching the maximum operation scope, scope of work restriction pilot lamp 8 is bright, hummer 6 and alarm 40 sound, working arm can only be withdrawn and rise.

5 degree inclination sensors 20 are connected with the digital quantity input port DN18 of revolving bed PLVC controller 1, be installed in and be used for detecting the car load angle of inclination on the aerial work platform underframe, surpass 5 when spending when detecting angle, inclination pilot lamp 7 is bright, hummer 6 and alarm 40 sound, working arm can only be withdrawn and descend, and the car load speed of travel becomes the operation speed of travel (0.5km/h) automatically.

Working arm 0 degree is following, and withdrawal puts in place and is connected with DN16 with the digital quantity input port DN17 of revolving bed PLVC controller 1 respectively near switch 22 with working arm near switch 21, oil circuit solenoid directional control valve 39 is connected with the PWM delivery outlet PWM8 of revolving bed PLVC controller 1, have only when working arm 0 degree is following and put in place when all moving near switch 22 near switch 21 and working arm withdrawal, the aerial work platform speed of travel just is 2km/h, otherwise the speed of travel is 0.5km/h automatically, action row is walked high speed switch 12 when the aerial work platform speed of travel is 2km/h, revolving bed PLVC controller 1 drives 39 actions of oil circuit solenoid directional control valve, and the speed of travel becomes 4km/h.

The PLVC control system of present embodiment detects linear transducer 17, angular transducer 18 and CAN-BUS fault automatically, and system failure pilot lamp 9 is bright during fault, hummer 6 and alarm 40 sound, and everything does not have.

Emergency stop switch 16 and emergency stop switch 43 are normally closed switch, be connected respectively to promptly stopping on the interface EM1 of operation slot PLVC controller 2 and revolving bed PLVC controller 1, when emergency stop switch is moved, all of operation slot PLVC controller 2 and revolving bed PLVC controller 1 are output as 0, and everything stops.

Very color liquid crystal touch screen 19 and revolving bed PLVC controller 1 are connected by the RS232 serial ports, very color liquid crystal touch screen 19 can be programmed, the technical parameter of aerial work platform, dynamically job state and data, the system failure and warning message daily record be can show with the mode of touch button chooser picture, can the system failure and warning message be presented in the mode of dynamic Chinese the below of screen.

After adopting present embodiment, can satisfy safe, the work high above the ground requirement efficiently of aerial work platform fully, improve advance, the reliability of aerial work platform in the control technology field.

Claims

1. aerial work platform control system, comprise controller, it is characterized in that: described controller is an at least one PLVC controller, the operation input end of described PLVC controller connects corresponding manipulation of switches and operating grip respectively, the sensing input end connects corresponding length, angle and inclination sensor respectively, the warning indication output end connects corresponding pilot lamp and alarm appliance respectively, and the actuating mechanism controls output terminal connects corresponding actuating mechanism controls valve respectively.

2. aerial work platform control system according to claim 1, it is characterized in that: described PLVC controller comprises revolving bed and revolving bed PLVC controller on the operation slot and the operation slot PLVC controller that is placed in aerial work platform respectively, adopts the CAN-BUS bus communication to connect between the described two PLVC controllers.

3. aerial work platform control system according to claim 2 is characterized in that: described manipulation of switches comprises operation slot rotary switch, operation slot leveling switch, walking speed-sensitive switch, foot-switch, engine acceleration switch, horn switch, emergency stop switch.

4. aerial work platform control system according to claim 3 is characterized in that: described operating grip comprises working arm stretch ratio handle, working arm fluctuating/rotation ratio handle, walking/ratio of turning handle.

5. aerial work platform control system according to claim 4 is characterized in that: described actuating mechanism controls valve comprises walking proportioning valve, ratio of turning valve, working arm fluctuating proportioning valve, working arm rotation proportioning valve, the flexible proportioning valve of working arm, operation slot rotation proportioning valve, operation slot leveling proportioning valve, oil circuit solenoid directional control valve.