CN102529783A - Safety control system of power takeoff of dump truck - Google Patents
Safety control system of power takeoff of dump truck Download PDFInfo
- Publication number
- CN102529783A CN102529783A CN2011104434222A CN201110443422A CN102529783A CN 102529783 A CN102529783 A CN 102529783A CN 2011104434222 A CN2011104434222 A CN 2011104434222A CN 201110443422 A CN201110443422 A CN 201110443422A CN 102529783 A CN102529783 A CN 102529783A
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- China
- Prior art keywords
- control valve
- valve body
- power takeoff
- control system
- decline chamber
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- Safety Valves (AREA)
Abstract
The invention discloses a safety control system of a power takeoff of a dump truck, which comprises a pneumatic control valve and a ganged rocker control switch. The pneumatic control valve is connected with the ganged rocker control switch by an external electric wire, the other end of the ganged rocker control switch is connected with a central control unit and 30 always-on live wires of a chassis of the dump truck, the pneumatic control valve consists of a pneumatic control valve body, a microswitch, a gear-off spool, a descending cavity and an operating handle, the operating handle is arranged at the upper end of the pneumatic control valve body, the lower end of the pneumatic control valve body is connected with a cam in a threaded manner, the descending cavity is disposed below the cam, a through hole is arranged between a cavity with the gear-off spool and the descending cavity, and the microswitch is arranged on the top of the pneumatic control valve body and corresponds to the gear-off spool. The safety control system of the power takeoff of the dump truck effectively solves that problems that a switch of the power takeoff of the dump truck is out of control to easily cause accidents.
Description
Technical field
The invention belongs to vehicle safety control system, be specifically related to a kind of dumping car power takeoff safety control system.
Background technology
At present; Two types of domestic dumping car chassis great majority all are that the power takeoff on-off controlling system has been installed on the chassis, and according to operating instruction, power take-off valve should be closed when lifting/step-down operation finishes; If chaufeur is forgotten when driving or former thereby power take-off valve is not thrown off for " saving trouble " etc.; Automobile is under the situation of running at high speed, and oil pump causes compartment " automatically " lifting with the hydraulic oil pressure feed liquor cylinder pressure of certain pressure, and there is very big potential safety hazard in it.Dumping car compartment in the process of moving is prone to " automatically " lifting, and accidents caused easily, social influence is abominable, and more many families have brought misfortune.
Summary of the invention
In order to overcome the problems referred to above that the prior art field exists, the objective of the invention is to, a kind of dumping car power takeoff safety control system is provided, it is out of control to solve the dumping car power take-off valve, easily accidents caused problem.
Dumping car power takeoff safety control system provided by the invention; It comprises Pneumatic valve, duplex seesaw master cock; Said Pneumatic valve is connected the Central Processing Unit (CPU) on the duplex seesaw master cock other end and dumping car chassis through external cord with duplex seesaw master cock.
Said Pneumatic valve comprises gas control valve body, micro-switch, spool out of stock, decline chamber, operating handle; Operating handle is arranged on gas control valve body upper end; Its lower end is threaded with cam, and the decline chamber is arranged on below the cam, is provided with through hole between the cavity at spool out of stock place and decline chamber; Micro-switch is arranged on gas control valve body top, and is corresponding with spool out of stock; Said decline chamber also comprises decline chamber air extractor duct, decline chamber piston, and decline chamber air extractor duct is arranged on the bottom of gas control valve body; It also comprises rubber gasket, and its lower end is provided with support spring, is arranged on gas control valve body bottom, and is corresponding with the decline chamber.
Dumping car power takeoff safety control system provided by the invention; Its beneficial effect is; This control system utilization decline gas circuit automatic guidance power takeoff breaks off and overcurrent control duplex rocker switch automatically resets and locking; Actv. has solved the power take-off valve that compartment " automatically " lifting and artificial origin cause does not throw off, and guarantees the safety of driving, the possibility that the reduction accident takes place.
Description of drawings
Fig. 1 is the integral structure scheme drawing of the embodiment of the invention;
Fig. 2 is the integral structure scheme drawing of Pneumatic valve 14 among Fig. 1;
Fig. 3 is the electric control theory figure of the embodiment of the invention.
Mark among the figure:
1. spool out of stock; 2. external cord; 3. cam; 4. micro-switch; 5. operating handle; 6. decline chamber piston; 7. rubber gasket; 8. gas control valve body; 9. decline chamber air extractor duct; 10. duplex seesaw master cock; 11. dumping car chassis Central Processing Unit (CPU); 12.30 normal open live wire; 13. through hole; 14. Pneumatic valve; SA1. coupled twin switch; SA2. micro-switch; Y1. power takeoff electromagnetic valve.
The specific embodiment
With reference to the accompanying drawings, in conjunction with embodiment,, carry out detailed explanation to dumping car power takeoff safety control system provided by the invention.
Embodiment
With reference to Fig. 1-Fig. 3; The dumping car power takeoff safety control system of present embodiment; It comprises Pneumatic valve 14, duplex seesaw master cock 10; Said Pneumatic valve 14 is connected with duplex seesaw master cock 10 through external cord 2, and duplex seesaw master cock 10 other ends are connected with Central Processing Unit (CPU) 11, the 30 normal open live wires 12 on dumping car chassis; Said Pneumatic valve comprises gas control valve body 8, micro-switch 4, spool out of stock 1, decline chamber, operates in handle 5; Operating handle 5 is arranged on gas control valve body 8 upper ends; Its lower end is threaded with cam 3, and the decline chamber is arranged on below the cam 3, is provided with through hole 13 between the cavity at spool out of stock 1 place and decline chamber; Micro-switch 4 is arranged on gas control valve body 8 tops, and is corresponding with spool out of stock 1; Said decline chamber also comprises decline chamber air extractor duct 9, decline chamber piston 6, and decline chamber air extractor duct 9 is arranged on the bottom of gas control valve body 8; It also comprises rubber gasket 7, and its lower end is provided with support spring, is arranged on gas control valve body 8 bottoms, and is corresponding with the decline chamber.
Dumping car rotates through operating handle 5 when descending, and drives the cam 3 that links into an integrated entity with tool and rotates; Depress decline chamber piston 6; Decline chamber piston 6 presses down rubber gasket 7 and pushes open, and the gas that gas control valve body 8 lower ends are inserted will get into the decline chamber, and gets into the decline chamber of dumping car lifting valve through decline chamber air extractor duct 9; The switching-over of control lifting valve, body of tipper carriage descends; The pressed gas that descends simultaneously in the chamber gets into the vestibule at spool out of stock 1 place through through hole 13, and it is up to promote spool out of stock 1, and spool 1 out of stock is connected micro-switch 4 contact disks, forms turning circuits through external cord 2.
Claims (4)
1. dumping car power takeoff safety control system; It is characterized in that: it comprises Pneumatic valve, duplex seesaw master cock; Said Pneumatic valve is connected with duplex seesaw master cock through external cord, and the duplex seesaw master cock other end is connected with dumping car chassis Central Processing Unit (CPU).
2. dumping car power takeoff safety control system according to claim 1; It is characterized in that: said Pneumatic valve comprises gas control valve body, micro-switch, spool out of stock, decline chamber, operating handle, and operating handle is arranged on gas control valve body upper end, and its lower end is threaded with cam; The decline chamber is arranged on below the cam; Be provided with through hole between the cavity at spool out of stock place and decline chamber, micro-switch is arranged on gas control valve body top, and is corresponding with spool out of stock.
3. dumping car power takeoff safety control system according to claim 2, it is characterized in that: said Pneumatic valve also comprises rubber gasket, its lower end is provided with support spring, is arranged on gas control valve body bottom, and is corresponding with the decline chamber.
4. dumping car power takeoff safety control system according to claim 2 is characterized in that: the decline chamber of said Pneumatic valve also comprises decline chamber air extractor duct, decline chamber piston, and decline chamber air extractor duct is arranged on the bottom of gas control valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110443422.2A CN102529783B (en) | 2011-12-17 | 2011-12-17 | Safety control system of power takeoff of dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110443422.2A CN102529783B (en) | 2011-12-17 | 2011-12-17 | Safety control system of power takeoff of dump truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102529783A true CN102529783A (en) | 2012-07-04 |
| CN102529783B CN102529783B (en) | 2014-04-02 |
Family
ID=46338216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110443422.2A Active CN102529783B (en) | 2011-12-17 | 2011-12-17 | Safety control system of power takeoff of dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102529783B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60179346A (en) * | 1984-02-25 | 1985-09-13 | Isuzu Motors Ltd | Safety device of dump truck |
| CN2588104Y (en) * | 2002-11-28 | 2003-11-26 | 重汽集团专用汽车公司 | Speed adjusting type pneumatically controlled distribution valve |
| CN202413558U (en) * | 2011-12-17 | 2012-09-05 | 中国重汽集团青岛重工有限公司 | Safe control system for power takeoff of self-dumping truck |
-
2011
- 2011-12-17 CN CN201110443422.2A patent/CN102529783B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60179346A (en) * | 1984-02-25 | 1985-09-13 | Isuzu Motors Ltd | Safety device of dump truck |
| CN2588104Y (en) * | 2002-11-28 | 2003-11-26 | 重汽集团专用汽车公司 | Speed adjusting type pneumatically controlled distribution valve |
| CN202413558U (en) * | 2011-12-17 | 2012-09-05 | 中国重汽集团青岛重工有限公司 | Safe control system for power takeoff of self-dumping truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102529783B (en) | 2014-04-02 |
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