CN203570382U - Automatic control protection valve for lubricating oil pressure of diesel engine - Google Patents
Automatic control protection valve for lubricating oil pressure of diesel engine Download PDFInfo
- Publication number
- CN203570382U CN203570382U CN201320757722.2U CN201320757722U CN203570382U CN 203570382 U CN203570382 U CN 203570382U CN 201320757722 U CN201320757722 U CN 201320757722U CN 203570382 U CN203570382 U CN 203570382U
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- valve
- diesel engine
- chamber
- hydraulic control
- gas
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- Expired - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
- Safety Valves (AREA)
Abstract
The utility model relates to an automatic control protection valve for the lubricating oil pressure of a diesel engine. A valve body comprises a hydraulic control cavity and a gas working cavity, which are arranged to be one above the other, the wall of the hydraulic control cavity is respectively provided with an oil inlet and an exhaust port, and a piston which is in slide fit with the hydraulic control cavity is installed inside the hydraulic control cavity; the bottom of the gas working cavity is provided with an adjusting screw, the upper part and the lower part of the side surface of the wall of the gas working cavity are respectively provided with a gas inlet and a gas outlet, a valve seat is installed in the gas working cavity, the valve seat is provided with a valve core, the upper part of the valve core is connected with the piston through a piston rod, the lower part of the valve core is provided with a lug boss, and the lug boss pushes against the adjusting screw through the spring. The automatic control protection valve is installed on a diesel engine main lubricating oil pipeline, the minimal value pressure protection is set, when the oil pressure drops to the pressure protection value, the air source supplying the gas to an air tire clutch air tire is disconnected through the working of an adjustable pressure valve, an alarm is issued, the reverse pulling force on a malfunctioned diesel engine is disconnected through the air tire clutch, the diesel engine is automatically stopped, and the protection purpose can be realized.
Description
Technical field
The utility model belongs to oil drilling apparatus field, is specially a kind of diesel lubrication oil pressure automatic protection valve.
Background technique
Present each drilling company job site power equipment used, except electronic, majority is 12V190 serial diesel engine.Although 190 serial diesel engines are all equipped with unit low fuel pressure automatic stopping protective gear, when low fuel pressure, can automatically stop to Fuel Injection Mechanism of Diesel Engine, thus automatic stopping; But the output of the power of existing diesel completes by tire type clutch, in construction, many diesel engine belts of working condition requirement car running, when if a diesel engine under this operating mode wherein occurs that lubrication system breaks down, existing unit low fuel pressure automatic stop device can be done this diesel engine fuel cut-off action, but because air clutch own is not separated, just there will be car band car phenomenon, make fault diesel engine stop not getting off, thus cause lubrication system fault diesel engine generation scuffing of cylinder bore, axis tile, break the body major accident such as hurt sb.'s feelings.Although some diesel engines are equipped with bracing wire between low fuel pressure automatic stopping handle and Clutch Control air cock handle own in addition.When oil pressure of lubricating system is too low, utilize lever principle to pull air cock handle cut-off clutch.But each drilling team installs without unified standard, and material and technology service and attitude are paid attention to the reasons such as inadequate, just sent out a lot of in recent years raw scuffing of cylinder bore, axis tile, broke the major accidents such as body, golden nearly 1,000,000 yuan of direct economic loss.
Model utility content
For the diesel engine that existing diesel automatic stop device can not be realized and car moves, realize and stopping; prevent the drawback of car band car operation, the utility model provides a kind of can realization to make diesel engine remove the diesel lubrication oil pressure automatic protection valve that air clutch extension closes.
The technical solution of the utility model is: valve body comprises the gentle body running chamber, hydraulic control chamber of upper and lower layout, is respectively equipped with filler opening and relief opening, the inner piston being slidably matched of installing in chamber on the chamber wall in described hydraulic control chamber; The top and the bottom that the bottom of described gas active chamber is provided with adjusting screw, wall side, chamber are provided with respectively suction port and air outlet, the inner valve seat of installing in chamber, valve seat is provided with spool, and the top of spool by piston rod be connected with piston, bottom is provided with plush copper and plush copper by spring and adjusting screw against.
The utility model has installed automatic protection valve additional on diesel engine main delivery pipe line; set minimum value pressure protect; diesel engine oil pressure is detected constantly; when oil pressure drops to pressure protect value; adjustable pressure valve work is cut off to air clutch pneumatic tyre air feed source of the gas own and is reported to the police; air clutch disconnects the anti-towing tension to fault diesel engine, and diesel engine automatic stopping reaches protection object.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment's of the utility model structural representation;
In figure: 801. adjusting screw, 802. suction ports, 803. air outlets, 804. piston rods, 805. pistons, 806. filler openings, 807. valve bodies, 808. relief openings, 809. valve seats, 810. spools, 811. springs, 812. hydraulic control chambeies, 813. gas active chambers, plush copper 814.
Embodiment
Referring to Fig. 1, a kind of diesel lubrication oil pressure automatic protection valve, valve body 807 comprises the gentle body running chamber, hydraulic control chamber 812 813 of upper and lower layout, is respectively equipped with filler opening 806 and relief opening 808, the inner piston 805 being slidably matched of installing in chamber on the chamber wall in hydraulic control chamber 812; The top and the bottom that the bottom of gas active chamber 813 is provided with adjusting screw 801, wall side, chamber are provided with respectively suction port 802 and air outlet 803, the inner valve seat 809 of installing in chamber, valve seat 809 is provided with spool 810, and the top of spool 810 by piston rod 804 be connected with piston 805, bottom is provided with plush copper 814 and plush copper 814 by spring 811 and adjusting screw 801 against.
Working principle is: when oil pressure is normal, it is descending that piston 805 promotes spools 810 by piston rod 804 under oil pressure effect, plush copper 814 spring 811 that gradually reduces now, and when spool 810 and valve seat 809 contact and form while sealing, hydrovalve 8 is closed; When the protection value of low fuel pressure and setting, spring 811 is that reverse push movable valve plug 810 is separated with valve seat 809, and now hydrovalve 8 is switched on.According to actual needs, by adjusting screw 801 just regulate can regulator solution pressure valve 8 pressure retention value.
Because diesel lubrication oil pressure automatic protection valve is used for cutting out or conducting gas pipeline; therefore design the gas supply line of suitable air clutch; just can be by control inflation and the venting of air clutch by diesel lubrication oil pressure automatic protection valve, thus to hanging to close with contacting, hang the object of closing.
For those skilled in the art, do not departing under the prerequisite of the utility model principle, likely to concrete size, or partial structurtes make some improvements and modifications, and these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. a diesel lubrication oil pressure automatic protection valve, it is characterized in that, valve body (807) comprises the gentle body running chamber, hydraulic control chamber (812) (813) of upper and lower layout, is respectively equipped with filler opening (806) and relief opening (808), the inner piston (805) being slidably matched of installing in chamber on the chamber wall in described hydraulic control chamber (812); The top and the bottom that the bottom of described gas active chamber (813) is provided with adjusting screw (801), wall side, chamber are provided with respectively suction port (802) and air outlet (803), the inner valve seat (809) of installing in chamber, valve seat (809) is provided with spool (810), and the top of spool (810) by piston rod (804) be connected with piston (805), bottom is provided with plush copper (814) and plush copper (814) by spring (811) and adjusting screw (801) against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757722.2U CN203570382U (en) | 2013-11-27 | 2013-11-27 | Automatic control protection valve for lubricating oil pressure of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757722.2U CN203570382U (en) | 2013-11-27 | 2013-11-27 | Automatic control protection valve for lubricating oil pressure of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570382U true CN203570382U (en) | 2014-04-30 |
Family
ID=50538116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320757722.2U Expired - Fee Related CN203570382U (en) | 2013-11-27 | 2013-11-27 | Automatic control protection valve for lubricating oil pressure of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570382U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632492A (en) * | 2014-12-31 | 2015-05-20 | 中国煤炭科工集团太原研究院有限公司 | Engine oil protection starting device of explosion-proof diesel engine and gas starting system |
| CN110761757A (en) * | 2019-11-29 | 2020-02-07 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
-
2013
- 2013-11-27 CN CN201320757722.2U patent/CN203570382U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632492A (en) * | 2014-12-31 | 2015-05-20 | 中国煤炭科工集团太原研究院有限公司 | Engine oil protection starting device of explosion-proof diesel engine and gas starting system |
| CN110761757A (en) * | 2019-11-29 | 2020-02-07 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
| CN110761757B (en) * | 2019-11-29 | 2021-08-06 | 李杨 | Multi-pipe type high-efficiency stratified water injection adjusting device for balancing water injection quantity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20141127 |
|
| EXPY | Termination of patent right or utility model |