CN102529783B - Safety control system of power takeoff of dump truck - Google Patents
Safety control system of power takeoff of dump truck Download PDFInfo
- Publication number
- CN102529783B CN102529783B CN201110443422.2A CN201110443422A CN102529783B CN 102529783 B CN102529783 B CN 102529783B CN 201110443422 A CN201110443422 A CN 201110443422A CN 102529783 B CN102529783 B CN 102529783B
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- control valve
- valve body
- decline chamber
- dump truck
- power takeoff
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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 safety control system of power takeoff of dump truck.
Background technology
At present, two domestic class self-dumping undercarriage for automobile great majority are all that power takeoff on-off controlling system has been installed on chassis, according to operating instruction, power take-off valve should be closed when lifting/step-down operation is complete, if chaufeur is forgotten when driving or for " saving trouble " etc. is former thereby power take-off valve is not thrown off, automobile is in the situation that running at high speed, and oil pump causes compartment " automatically " lifting by the hydraulic oil pressure inlet hydraulic cylinder of certain pressure, and it exists very large potential safety hazard.Dumping car in the process of moving compartment is prone to " automatically " lifting, and easily accidents caused, social influence is severe, and more many families have brought misfortune.
Summary of the invention
The problems referred to above that exist in order to overcome prior art field, the object of the invention is to, and a kind of safety control system of power takeoff of dump truck is provided, and solve dumper power takeoff switch out of control, easily accidents caused problem.
Safety control system of power takeoff of dump truck provided by the invention, it comprises Pneumatic valve, duplex seesaw master cock, described Pneumatic valve is connected with duplex seesaw master cock by external cord, the Central Processing Unit (CPU) of the duplex seesaw master cock other end and self-dumping undercarriage for automobile.
Described 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, decline chamber is arranged on below cam, between the cavity at spool out of stock place and decline chamber, be provided with through hole, micro-switch is arranged on gas control valve body top, corresponding with spool out of stock; Described 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, corresponding with decline chamber.
Safety control system of power takeoff of dump truck provided by the invention, its beneficial effect is, this control system utilization decline gas circuit automatically controls power takeoff disconnection 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 and has not thrown off, guarantee the safety of driving, the possibility that reduction accident occurs.
Accompanying drawing explanation
Fig. 1 is the integral structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the integral structure schematic diagram of Pneumatic valve 14 in Fig. 1;
Fig. 3 is the electric control theory figure of the embodiment of the present invention.
In figure, mark:
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. self-dumping undercarriage for automobile Central Processing Unit (CPU)s; 12.30 normal open live wire; 13. through holes; 14. Pneumatic valves; SA1. coupled twin switch; SA2. micro-switch; Y1. power takeoff electromagnetic valve.
The specific embodiment
With reference to the accompanying drawings,, to safety control system of power takeoff of dump truck provided by the invention, be described in detail in conjunction with the embodiments.
Embodiment
With reference to Fig. 1-Fig. 3, the safety control system of power takeoff of dump truck of the present embodiment, it comprises Pneumatic valve 14, duplex seesaw master cock 10, described Pneumatic valve 14 is connected with duplex seesaw master cock 10 by 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 of self-dumping undercarriage for automobile; Described 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, decline chamber is arranged on below cam 3, between the cavity at spool out of stock 1 place and decline chamber, be provided with through hole 13, micro-switch 4 is arranged on gas control valve body 8 tops, corresponding with spool 1 out of stock; Described 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, corresponding with decline chamber.
Dumping car is when declining, by operating handle 5, rotate, drive the cam 3 linking into an integrated entity with tool to rotate, depress decline chamber piston 6, decline chamber piston 6 presses down rubber gasket 7 to push open, and the gas of gas control valve body 8 lower end accesses will enter decline chamber, and by decline chamber air extractor duct 9, enters the decline chamber of tipper lift valve, the commutation of control lifting valve, body of tipper carriage declines; The pressed gas simultaneously declining in chamber enters the vestibule at spool out of stock 1 place by through hole 13, promote spool 1 out of stock up, and spool 1 out of stock is connected micro-switch 4 contact disks, by external cord 2, forms turning circuit.
Claims (1)
1. a safety control system of power takeoff of dump truck, it is characterized in that: it comprises Pneumatic valve, duplex seesaw master cock, described Pneumatic valve is connected with duplex seesaw master cock by external cord, and the duplex seesaw master cock other end is connected with self-dumping undercarriage for automobile Central Processing Unit (CPU), 30 normal open live wires; Described 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, decline chamber is arranged on below cam, between the cavity at spool out of stock place and decline chamber, be provided with through hole, micro-switch is arranged on gas control valve body top, corresponding with spool out of stock; Described 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; Described Pneumatic valve also comprises rubber gasket, and its lower end is provided with support spring, is arranged on gas control valve body bottom, corresponding with decline chamber.
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 CN102529783A (en) | 2012-07-04 |
| CN102529783B true 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60179346A (en) * | 1984-02-25 | 1985-09-13 | Isuzu Motors Ltd | Safety device of dump truck |
-
2011
- 2011-12-17 CN CN201110443422.2A patent/CN102529783B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP昭60-179346A 1985.09.13 |
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| Publication number | Publication date |
|---|---|
| CN102529783A (en) | 2012-07-04 |
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