CN2780546Y - Pneumatic control switch of autounloading car rear box plate and hydraulic protection device - Google Patents
Pneumatic control switch of autounloading car rear box plate and hydraulic protection device Download PDFInfo
- Publication number
- CN2780546Y CN2780546Y CN 200520016260 CN200520016260U CN2780546Y CN 2780546 Y CN2780546 Y CN 2780546Y CN 200520016260 CN200520016260 CN 200520016260 CN 200520016260 U CN200520016260 U CN 200520016260U CN 2780546 Y CN2780546 Y CN 2780546Y
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- pipeline
- hydraulic
- compartment
- control
- hook
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Abstract
The utility model discloses a pneumatic control switch of an autounloading car rear box plate and a hydraulic protection device, which comprises an air storage tank, a control pipeline and a rear box hook. The air storage tank comprises a front air storage tank and a rear air storage tank, and the pipeline that the front air storage tank is connected with is provided with a general control valve and a relay valve. The pipeline between the general control valve and the relay valve is connected with a hydraulic control handle, and the other end of the hydraulic control handle is connected with a hydraulic pump force taking device via the pipeline. The middle part of the hydraulic control handle is connected with a hydraulic distributor via the pipeline. One end of the relay valve is connected with the rear air storage tank via the pipeline, and the other end is connected with a rear box hook control pump via the pipeline. The inner part of the rear box hook control pump comprises a spring and a piston, and a piston rod on the piston is connected with the rear box hook. When the general control valve of the utility model is closed, a hydraulic system doesn't control the air pressure, so rising or falling down can not happen. Consequently, the general control valve not only automatically opens and closes the rear box hook, but also insures the hydraulic system. The device has the advantages of simple structure, reliable performance, safety and practicality.
Description
Affiliated technical field
The utility model relates to a kind of autocontrol switch and hydraulic protector, relates to a kind of dumping car back carriage plate gas control switch and hydraulic protector specifically.
Background technology
In road project or other field, load and transport material with dumping car, load and unload more convenient.The dumping car of prior art adopts basically by hydraulic efficiency gear control automatic hook and opens or closes, and controls self-discharging carriage.But the automatic hook of this hydraulic efficiency gear control exists the defective in the design, and when causing dumping car to be unloaded in the hillside fields easily, because lifting angle deficiency, automatic hook is not opened, thereby causes the vehicle hypsokinesis; And when heavy duty and Uneven road, occur sometimes that back carriage plate opens voluntarily or opened by the top.These situations all cause the accident easily.Present dumping car hydraulic efficiency pressure system, sometimes hydraulic control lever or electromagnetic valve switch are run in the tired or work carelessness of comparison because chaufeur is worked at night because of carelessness, make vehicle in the process of moving, automatically rise, cause accidents such as the electric wire of breaking the road sky, optical cable.
Summary of the invention
For overcoming the deficiencies in the prior art, the utility model provides a kind of dumping car back carriage plate gas control switch and hydraulic protector, and this apparatus structure is simple, and in-use performance is reliable, and safety of operation is stable.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of dumping car back carriage plate gas control switch and hydraulic protector; comprise air tank; pilot piping and railway carriage or compartment, back hook; its structural feature is: air tank and back air tank before said air tank comprises; overhead control valve and relay valve are installed on the pipeline that air tank connects before said; on the pipeline between overhead control valve and the relay valve, connect hydraulic control lever; this hydraulic control lever other end connects the Hydraulic Pump power takeoff by pipeline; connect pressure distributor by pipeline in the middle of the hydraulic control lever; said relay valve one end connects said back air tank by pipeline; the other end connects railway carriage or compartment, back hook control pump by pipeline; comprise spring and piston in this railway carriage or compartment, back hook control pump, the piston rod on the said piston connects railway carriage or compartment, said back hook.During work, supply with hydraulic control lever air pressure by connecting the overhead control valve, hydraulic control lever promotes by railway carriage or compartment, Hydraulic Pump power takeoff control back, the overhead control valve is supplied with relay valve control air pressure simultaneously, makes relay valve work, and the back air tank is connected with railway carriage or compartment, back hook control pump, under the effect of air pressure, with the length of spring compressed in the hook control pump of railway carriage or compartment, back, move behind the piston rod, drive railway carriage or compartment, back hook and open automatically.Fall after rise in railway carriage or compartment, bonded assembly pressure distributor control back on the hydraulic control lever, when the compartment is fallen fully, close the master control valve, hydraulic control lever and relay valve while this moment get out of hand air pressure, relay valve cuts off working line simultaneously, with the piston reach, piston drives railway carriage or compartment, the tight back of hook lock, railway carriage or compartment, back to back railway carriage or compartment hook control pump under the effect of spring.
Mounting bush or bearing between the railway carriage or compartment shell lug of the back carriage plate above the hook of railway carriage or compartment, said back and the bearing pin, said bearing pin is provided with oil hole.Owing to be provided with lining or bearing between railway carriage or compartment shell lug and the bearing pin, make it to carry out daily attention, reduce wearing and tearing, it is excessive that tolerance clearance is difficult for, therefore further improve the order of accuarcy of back railway carriage or compartment hook, when guaranteeing under any railways and mineies, to travel, railway carriage or compartment, the back hook phenomenon that gets loose can not occur.
On said relay valve, connect warning device.After the overhead control valve was connected, the alarm switch on the relay valve was connected, and warning device begins to report to the police.Close the master control valve, the alarm switch on the relay valve cuts out, and warning device stops to report to the police.
The beneficial effects of the utility model are, the utility model is by connecing the structure that overhead control valve and relay valve, relay valve connect a back air tank again on the preceding air tank, when the overhead control valve cuts out, hydraulic efficiency pressure system is not owing to control air pressure, so can not lifting or whereabouts, so the overhead control valve not only has the effect of railway carriage or compartment hook behind the automatic switch, and hydraulic efficiency pressure system is also played safety effect.The utility model overcomes the drawback of original technology, and is simple in structure, and in-use performance is reliable, and the phenomenon that railway carriage or compartment, back hook is opened voluntarily can not appear in high safety, can effectively avoid the accident of property damage and personal casualty to take place.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Air tanks before 1. among the figure, 2. overhead control valve, 3. pilot piping, 4. pressure distributor, 5. hydraulic control lever, 6. back air tank, 7. Hydraulic Pump power takeoff, 8. relay valve, 9. warning device, 10. railway carriage or compartment, back hook control pump, railway carriage or compartment, 11. back hook, railway carriage or compartment, 12. back hanger, 13. linings.
The specific embodiment
As shown in Figure 1; a kind of dumping car back carriage plate gas control switch and hydraulic protector; comprise air tank; pilot piping 2 and railway carriage or compartment, back hook 11; air tank 1 and back air tank 6 before said air tank comprises; overhead control valve 2 and relay valve 8 are installed on the pipeline that air tank connects before said; on the pipeline between overhead control valve and the relay valve, connect hydraulic control lever 5; this hydraulic control lever other end connects Hydraulic Pump power takeoff 7 by pipeline; connect pressure distributor 4 by pipeline in the middle of the hydraulic control lever; said relay valve one end connects said back storage tube by pipeline; the other end connects railway carriage or compartment, back hook control pump 10 by pipeline; comprise spring and piston in this railway carriage or compartment, back hook control pump; piston rod on the said piston connects railway carriage or compartment, said back hook 11; mounting bush 13 or bearing between the railway carriage or compartment shell lug 12 of the back carriage plate above the hook of railway carriage or compartment, said back and the bearing pin; said bearing pin is provided with oil hole, connects warning device on said relay valve.
Claims (3)
1; a kind of dumping car back carriage plate gas control switch and hydraulic protector; comprise air tank; pilot piping (2) and back railway carriage or compartment hook (11); it is characterized in that: said air tank comprises preceding air tank (1) and back air tank (6); overhead control valve (2) and relay valve (8) are installed on the pipeline that air tank connects before said; on the pipeline between overhead control valve and the relay valve, connect hydraulic control lever (5); this hydraulic control lever other end connects Hydraulic Pump power takeoff (7) by pipeline; connect pressure distributor (4) by pipeline in the middle of the hydraulic control lever; said relay valve one end connects said back air tank by pipeline; the other end connects back railway carriage or compartment hook control pump (10) by pipeline; comprise spring and piston in this railway carriage or compartment, back hook control pump, the piston rod on the said piston connects said back railway carriage or compartment hook (11).
2, dumping car back carriage plate gas control switch according to claim 1 and hydraulic protector; it is characterized in that: mounting bush (13) or bearing between the railway carriage or compartment shell lug (12) of the back carriage plate above the hook of railway carriage or compartment, said back and the bearing pin, said bearing pin is provided with oil hole.
3, dumping car back carriage plate gas control switch according to claim 1 and hydraulic protector is characterized in that: connect warning device (11) on said relay valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520016260 CN2780546Y (en) | 2005-04-05 | 2005-04-05 | Pneumatic control switch of autounloading car rear box plate and hydraulic protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520016260 CN2780546Y (en) | 2005-04-05 | 2005-04-05 | Pneumatic control switch of autounloading car rear box plate and hydraulic protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2780546Y true CN2780546Y (en) | 2006-05-17 |
Family
ID=36761744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520016260 Expired - Fee Related CN2780546Y (en) | 2005-04-05 | 2005-04-05 | Pneumatic control switch of autounloading car rear box plate and hydraulic protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2780546Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108189730A (en) * | 2017-12-29 | 2018-06-22 | 周依依 | A kind of great tonnage hydraulic tablet self unloading machine |
-
2005
- 2005-04-05 CN CN 200520016260 patent/CN2780546Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108189730A (en) * | 2017-12-29 | 2018-06-22 | 周依依 | A kind of great tonnage hydraulic tablet self unloading machine |
| CN108189730B (en) * | 2017-12-29 | 2019-10-11 | 南理工泰兴智能制造研究院有限公司 | A kind of large-tonnage plate self unloading machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |