CN218151170U - Emergency stop device and diesel engine thereof - Google Patents
Emergency stop device and diesel engine thereof Download PDFInfo
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- CN218151170U CN218151170U CN202221950449.0U CN202221950449U CN218151170U CN 218151170 U CN218151170 U CN 218151170U CN 202221950449 U CN202221950449 U CN 202221950449U CN 218151170 U CN218151170 U CN 218151170U
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Abstract
The utility model discloses an emergency stop device and diesel engine thereof. Emergency stop device, belong to diesel engine technical field, emergency stop device's parking piston cylinder includes the casing and is located the piston core of casing inner chamber, the piston core can be separated the inner chamber of parking piston cylinder for oil pocket and the atmospheric air chamber of intercommunication, the one end fixedly connected with that the piston core is located the air chamber stretches out the throttle pull rod of casing, set up on the casing with the communicating piston cylinder oil inlet of oil pocket, two-position three way solenoid valve is provided with the solenoid valve oil inlet, solenoid valve oil-out and solenoid valve draining port, the solenoid valve oil inlet passes through the main engine oil duct on the oil pipe connection diesel engine organism, the solenoid valve oil-out passes through oil pipe intercommunication piston cylinder oil inlet. The emergency stopping device takes oil from the main oil duct of the diesel engine body, and the pressure of the engine oil pushes the piston core to enable the accelerator pull rod to move towards the stopping direction, so that the aim of emergency stopping of the diesel engine is fulfilled. And a compressed air interface and a pressure reducing valve required by pneumatic emergency stop do not need to be provided by a user, so that the cost is reduced.
Description
Technical Field
The utility model relates to a diesel engine technical field, concretely relates to emergency stop device and diesel engine thereof.
Background
The diesel engine is a machine (1000 rpm) which runs at a high speed, when the diesel engine works abnormally, the rotating speed exceeds 1000 rpm, the rotating speed of the diesel engine cannot be reduced, the rotating speed continues to be increased, the condition is called 'runaway', and at the moment, safety accidents are easily caused to equipment and personnel by the work of the diesel engine.
In the prior art, when the diesel engine is in runaway, an electric control pneumatic fuel cut-off runaway prevention device is generally adopted to prevent runaway, and comprises a compressed air source, a two-phase three-way pneumatic control valve and a compressed air pipeline, wherein the two-phase three-way pneumatic control valve is arranged between a fuel tank and a fuel pump, the two-phase three-way pneumatic control valve is communicated with a compressed air bottle through the compressed air pipeline, and an electromagnetic valve is arranged on the compressed air pipeline.
The working principle of the electric control pneumatic oil-cut anti-runaway device is as follows:
the monitor gives a signal solenoid valve according to the overspeed phenomenon, and the solenoid valve automatically controls the action of the two-phase three-way pneumatic control valve, so that the supply of fuel oil can be accurately and timely cut off. Because the compressed air source of the pneumatic fuel cut-off anti-runaway device is usually provided with a compressed air bottle, a pressure reducing valve and the like, and the compressed air bottle, the pressure reducing valve and other equipment need to be self-provided by users, the use cost is increased, and some users started by electricity do not know or do not want to use the pneumatic emergency stop function, so that potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect of prior art, the utility model aims to solve the first technical problem that an emergency stop device is provided uses the machine oil of diesel engine self area pressure to replace compressed air and make emergency stop mechanism work, need not user's required compressed air interface and relief pressure valve of pneumatic emergency stop of oneself, reduces user use cost.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an emergency stop device, comprising: a parking piston cylinder, a two-position three-way electromagnetic valve and an oil pipe,
the parking piston cylinder comprises a shell and a piston core positioned in an inner cavity of the shell, the piston core can divide the inner cavity of the parking piston cylinder into an oil cavity and an air cavity communicated with the atmosphere, one end of the piston core positioned in the air cavity is fixedly connected with an accelerator pull rod extending out of the shell, a piston cylinder oil inlet communicated with the oil cavity is formed in the shell,
the two-position three-way electromagnetic valve is provided with an electromagnetic valve oil inlet, an electromagnetic valve oil outlet and an electromagnetic valve oil drain port,
the oil inlet of the electromagnetic valve is connected with a main oil duct on the diesel engine body through an oil pipe, and the oil outlet of the electromagnetic valve is communicated with the oil inlet of the piston cylinder through an oil pipe.
Preferably: and the oil drain port of the solenoid valve of the two-position three-way solenoid valve is communicated with the oil pan through an oil pipe.
Preferably: and the electromagnetic valve oil drain port of the two-position three-way electromagnetic valve is communicated with the atmosphere through an oil pipe.
Preferably: and an engine oil filter is arranged on the oil pipe between the diesel engine body and the two-position three-way electromagnetic valve.
Preferably: the diesel engine body is provided with a supporting plate, and the two-position three-way electromagnetic valve and the engine oil filter are fixedly arranged on the supporting plate respectively.
Preferably, the following components: the oil pipe is provided with a plurality of pipe clamps, and the pipe clamps are used for fixing the oil pipe to the diesel engine body and the supporting plate respectively.
Preferably: the parking piston cylinder is fixedly arranged on the diesel engine body.
The utility model aims to solve the second technical problem that a diesel engine is provided, including foretell emergency stop device, use the machine oil of diesel engine self area pressure to replace compressed air and make emergency stop mechanism work, retrench the structure, reduce user use cost.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the utility model discloses an emergency stop device, its parking piston cylinder include the casing and be located the piston core of casing inner chamber, and the piston core can separate the inner chamber of parking piston cylinder for the oil pocket and communicate atmospheric air chamber, and the one end fixedly connected with that the piston core is located the air chamber stretches out the throttle pull rod of casing has seted up on the casing with the communicating piston cylinder oil inlet of oil pocket, and two-position three way solenoid valve is provided with solenoid valve oil inlet, solenoid valve oil-out and solenoid valve draining port, and the solenoid valve oil inlet passes through the host oil duct on the oil pipe connection diesel engine organism, and the solenoid valve oil-out passes through oil pipe intercommunication piston cylinder oil inlet. When the diesel engine runs and coasts over speed, the two-position three-way electromagnetic valve is opened, an electromagnetic valve oil inlet of the two-position three-way electromagnetic valve is communicated with an electromagnetic valve oil outlet, engine oil sucked from a main oil duct on a diesel engine body enters an oil cavity of the parking piston cylinder through the oil pipe and the filter and then the two-position three-way electromagnetic valve, the engine oil in the oil cavity of the parking piston cylinder pushes the piston core and the accelerator pull rod to move towards a zero position (parking) direction, a rack of the oil injection pump is pulled down to the oil parking position, the oil injection pump does not supply oil any more, and the purpose of emergency parking of the diesel engine is achieved.
The utility model discloses an emergency stop device gets oil from the main oil duct of diesel engine organism, and the pressure by machine oil promotes the piston core and makes the throttle pull rod toward the direction of parking motion, reaches the purpose of letting the diesel engine emergency stop. The pneumatic emergency stop system replaces the traditional mode of driving by using compressed air, a user does not need to be provided with a compressed air interface and a pressure reducing valve required by pneumatic emergency stop, the use cost of the user is reduced, and the potential safety hazard caused by the fact that the user does not connect the pneumatic emergency stop for saving cost or no compressed air exists in an air bottle is avoided.
Drawings
Fig. 1 is a schematic structural view of the emergency stop device of the present invention;
FIG. 2 is a schematic cross-sectional view of the parking piston cylinder of FIG. 1;
in the figure:
1. a parking piston cylinder; 101. a housing; 1011. an oil inlet of the piston cylinder; 102. a piston core; 103. a throttle lever; 2. a two-position three-way electromagnetic valve; 3. an engine oil filter; A. an oil chamber; B. an air chamber; 4. a support plate; 5. a pipe clamp; 6. an oil pipe; 7. an injection pump.
Detailed Description
The following detailed description of the embodiments of the present invention will be provided in conjunction with the accompanying drawings and specific embodiments for further understanding the objects, aspects and functions of the present invention, but not for limiting the scope of the appended claims.
The emergency stop device as shown in fig. 1 to 2 includes: the parking piston cylinder 1 comprises a casing 101 and a piston core 102 positioned in an inner cavity of the casing 101, the piston core 102 can divide the inner cavity of the parking piston cylinder 1 into an oil cavity A and an air cavity B communicated with the atmosphere, one end B, positioned in the air cavity, of the piston core 102 is fixedly connected with an accelerator pull rod 103 extending out of the casing 101, and a piston cylinder oil inlet 1011 communicated with the oil cavity A is formed in the casing 101.
The two-position three-way electromagnetic valve 2 is provided with an electromagnetic valve oil inlet, an electromagnetic valve oil outlet and an electromagnetic valve oil drainage port, the electromagnetic valve oil inlet is connected with a main oil duct on the diesel engine body C through an oil pipe, and the electromagnetic valve oil outlet is communicated with the piston cylinder oil inlet 1011 through the oil pipe.
And the electromagnetic valve oil drain port of the two-position three-way electromagnetic valve 2 is communicated with the oil pan through an oil pipe. Or the oil drain port of the solenoid valve of the two-position three-way solenoid valve 2 is communicated with the atmosphere through an oil pipe. The utility model discloses well two-position three way solenoid valve 2 is the normal close state. When the two-position three-way electromagnetic valve 2 is opened, an electromagnetic valve oil inlet of the two-position three-way electromagnetic valve 2 is communicated with an electromagnetic valve oil outlet; when the two-position three-way electromagnetic valve 2 is closed, the electromagnetic valve oil inlet of the two-position three-way electromagnetic valve 2 is communicated with the electromagnetic valve oil drain port.
And an engine oil filter 3 is arranged on the oil pipe between the diesel engine body C and the two-position three-way electromagnetic valve 2.
The diesel engine body is provided with a supporting plate 4, and the two-position three-way electromagnetic valve 2 and the engine oil filter 3 are fixedly arranged on the supporting plate 4 respectively. And the parking piston cylinder 1 is fixedly arranged on the diesel engine body C. Be equipped with a plurality of pipe strap 5 on the oil pipe, pipe strap 5 will oil pipe is fixed in respectively diesel engine organism C and backup pad 4 prevent that the diesel engine during operation from producing vibration damage the utility model discloses an emergency stop device.
The utility model discloses a diesel engine includes above-mentioned emergency stop device, can be quick become the stop state with the diesel engine from the motion state, shortens emergency stop time, can make the diesel engine make the parking reaction faster under emergency, has improved the security of diesel engine during operation.
The working process of the emergency stop device is as follows:
when the diesel engine runs and coasts in an overspeed manner, the two-position three-way electromagnetic valve 2 is opened, the electromagnetic valve oil inlet of the two-position three-way electromagnetic valve 2 is communicated with the electromagnetic valve oil outlet, engine oil sucked from a main oil duct on a diesel engine body enters an oil cavity of a parking piston cylinder through the oil pipe, the engine oil filter 3 and the two-position three-way electromagnetic valve 2, the engine oil in the oil cavity of the parking piston cylinder pushes a piston core and an accelerator pull rod to move towards a zero position (parking) direction, a rack of the oil injection pump 7 is pulled down to the oil parking position, the oil injection pump 7 does not supply oil any more, and the aim of emergency parking of the diesel engine is fulfilled.
When the two-position three-way electromagnetic valve 2 is reset, the electromagnetic valve oil outlet of the two-position three-way electromagnetic valve 2 is communicated with the electromagnetic valve oil drain port, the engine oil flowing through the two-position three-way electromagnetic valve 2 is drained into the oil pan (or the outside), the accelerator pull rod can be pushed to reset at the moment, and the diesel engine can be started normally.
The utility model discloses an emergency stop device gets oil from the main oil duct of diesel engine organism, and the pressure by machine oil promotes the piston core and makes the throttle pull rod toward the direction of parking motion, reaches the purpose of letting the diesel engine emergency stop. The pneumatic emergency stop system replaces the traditional mode of driving by using compressed air, a user does not need to be provided with a compressed air interface and a pressure reducing valve required by pneumatic emergency stop, the use cost of the user is reduced, and the potential safety hazard caused by the fact that the user does not connect the pneumatic emergency stop for saving cost or no compressed air exists in an air bottle is avoided.
The utility model discloses not confine above-mentioned embodiment to, all be based on the utility model discloses a conceive, principle, structure and method, all kinds of improvements made are all within the scope of protection of the utility model.
Claims (8)
1. An emergency stop device, comprising: a parking piston cylinder, a two-position three-way electromagnetic valve and an oil pipe,
the parking piston cylinder comprises a shell and a piston core positioned in an inner cavity of the shell, the piston core can divide the inner cavity of the parking piston cylinder into an oil cavity and an air cavity communicated with the atmosphere, one end of the piston core positioned in the air cavity is fixedly connected with an accelerator pull rod extending out of the shell, a piston cylinder oil inlet communicated with the oil cavity is formed in the shell,
the two-position three-way electromagnetic valve is provided with an electromagnetic valve oil inlet, an electromagnetic valve oil outlet and an electromagnetic valve oil drain port,
the oil inlet of the electromagnetic valve is connected with a main oil duct on the diesel engine body through an oil pipe, and the oil outlet of the electromagnetic valve is communicated with the oil inlet of the piston cylinder through an oil pipe.
2. The emergency stop device according to claim 1, wherein: and the electromagnetic valve oil drain port of the two-position three-way electromagnetic valve is communicated with an oil pan through an oil pipe.
3. The emergency stop device according to claim 1, wherein: and the electromagnetic valve oil drain port of the two-position three-way electromagnetic valve is communicated with the atmosphere through an oil pipe.
4. Emergency stop device according to claim 2 or 3, characterized in that: and an engine oil filter is arranged on the oil pipe between the diesel engine body and the two-position three-way electromagnetic valve.
5. The emergency stop apparatus according to claim 4, wherein: the diesel engine body is provided with a supporting plate, and the two-position three-way electromagnetic valve and the engine oil filter are fixedly arranged on the supporting plate respectively.
6. The emergency stop apparatus according to claim 5, wherein: the oil pipe is provided with a plurality of pipe clamps, and the pipe clamps are used for fixing the oil pipe to the diesel engine body and the supporting plate respectively.
7. The emergency stop device according to claim 1, wherein: the parking piston cylinder is fixedly arranged on the diesel engine body.
8. A diesel engine, characterized by: including an emergency stop device according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221950449.0U CN218151170U (en) | 2022-07-27 | 2022-07-27 | Emergency stop device and diesel engine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221950449.0U CN218151170U (en) | 2022-07-27 | 2022-07-27 | Emergency stop device and diesel engine thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218151170U true CN218151170U (en) | 2022-12-27 |
Family
ID=84595521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221950449.0U Active CN218151170U (en) | 2022-07-27 | 2022-07-27 | Emergency stop device and diesel engine thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218151170U (en) |
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2022
- 2022-07-27 CN CN202221950449.0U patent/CN218151170U/en active Active
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