CN2246713Y - Automatic engine-stopping device on diesel engine oil pressure failure - Google Patents

Abstract

The utility model discloses an engine oil pressure failure automatic stop device for a diesel engine. The utility model comprises an engine oil pressure failure automatic stop valve body which is provided with a valve core, a valve body wall is provided with an oil hole corresponding to a through hole which is arranged on the valve core, a spring is arranged between the lower end of the valve core and the valve body, the point of the outside of the valve body corresponding to the oil hole is sheathed with a joint capable of connecting with the oil path of diesel oil, one end of the valve body is provided with an upper end cover which is connected with the pipe line of engine oil and is communicated with the valve body; a lower end cover of the other end of the valve body is communicated with the valve body and is connected with an oil pipe of a high-pressure oil pump, and the high-pressure oil pump is communicated with a starting oil circuit. The utility model has the advantages of small volume, long service life, and high safety; the utility model can be conveniently used for the diesel engine with various types.

Description

Diesel engine lubricating oil decompression automatic stop arrangement

The utility model relates to a kind of engine health device, specifically a kind of diesel engine lubricating oil decompression automatic stop arrangement.

China's medium and small-scale diesel engine does not also have installation capability reliable at present; automatic shutdown protection device after the easy to operate machine oil decompression; if diesel engine when work because of the machine oil tracheal rupture; mat washes out; oil pump is damaged and is caused the machine oil loss to make engine oil pressure descend until there not being pressure; and operator fail in time to find and shut down; diesel engine will have an accident so; gently then burn bearing shell; crankshaft journal; connnecting rod big end crumples; heavy then connecting rod screw is broken; body is broken; it is calculated that; the diesel engine rehabilitation expense of a 12V135 just reaches more than 30,000 yuan, and economic loss is bigger.If marine fishing boat, cargo ship run into strong wind in motion and the machine oil deperssurization emergency takes place suddenly again run out of steam, personnel's lives and properties just have very big danger so.On the marine marine diesel engine more than the minority 200KW solenoid valve is housed at present, the protective gear of electromagnet, and automatically controlled alarm, but all undesirable.According to user reflection, automatically controlled protective gear has following shortcoming: 1) because river, sea and coastal area humidity, salt fog are serious, the easy oxidation in terminal and contact causes bad connection, influences electric conductivity, thereby causes that control valve is malfunctioning.2) diesel engine is very big in when work vibrations, and terminal is very easily because of vibrations phenomenon such as become flexible, come off, break.3) after electromagnet got rusty, each parts was easily stuck, Control Failure.Alarm can only play the warning effect, can not shut down, generation that can not the prevention accident, and also have above-mentioned shortcoming.

The purpose of this utility model is: provide a kind of volume little, easy to use, the technological scheme of the diesel engine lubricating oil decompression automatic stop arrangement that the life-span is long.

The technical solution of the utility model is: diesel engine lubricating oil decompression automatic stop arrangement includes a machine oil decompression autostop valve body, spool is housed in the valve body, valve body wall has the oilhole corresponding with through hole on the spool, between spool lower end and valve body lower end spring is housed, the valve body outside is set with the joint that can connect the diesel oil road with the oilhole corresponding part; Valve body one end is equipped with upper end cap, and the machine oil pipeline in upper end cap and the body joins, and the machine oil pipeline communicates with this end cap inner valve body; The other end of valve body is equipped with lower end cap, and the interface that communicates with valve body is arranged on the lower end cap, and interface joins with the oil pipe that leads to high pressure oil pump, and a starting diesel oil oil circuit and the above-mentioned oil pipe that leads to high pressure oil pump are connected; Starting diesel oil oil circuit and starting mechanism join.

An interface of the above-mentioned joint that is sleeved on the valve body outside is logical with a termination of starting mechanism, and another interface is connected with diesel oil oil circuit pipe, the other end of starting mechanism and the connection of the interface of lower end cap, and communicate with oil pipe towards high pressure oil pump.

Above-mentioned starting mechanism comprises the switch starter body that an interface with the joint in the above-mentioned valve body outside is connected, the oil through that is contained in the switch awl core in the switch body is corresponding with the conical core hole of switch body, handle is equipped with in the upper end of switch awl core, the other end of switch starter body is equipped with the hollow screw that connects hollow oil connection, the lower end of hollow oil pipe joins by another hollow oil connection, hollow screw and lower end cap interface, and communicates with the oil pipe that leads to high pressure oil pump.

The above-mentioned spool outside is fluted, and the cross through hole on the spool is positioned at groove.

Above-mentioned valve body upper end inwall is useful on and stops the excessively descending step hole of spool and the step of spool to match.

Between lower end and the spring spring seat is arranged in the above-mentioned valve body.

The utility model has the advantages that: because the main working parts spool of this device is to slide in valve body, spool is worked in machine oil and diesel oil oil circuit all the time, does not therefore have problem of rustiness, also can not cause the malfunctioning problem of device because of getting rusty, safety, reliable, the life-span is long.This device volume is little, can satisfy the different model diesel engine and use, and installation and use are all very convenient.Because this device utilizes pressure difference to control the diesel oil oil circuit; in a single day the machine oil deperssurization emergency takes place in the diesel engine of full load or high speed operation; diesel engine is shut down in second at 5-10; highly sensitive; as long as note cleaning up when installing; free from dust foreign material, water etc. enter in oil pipe and the joint, can guarantee that this installs long-term proper functioning, and is safe and reliable.Cheap is that this installs another advantage, and every device is in 300 yuan, and the general user can both bear, and can extensively promote the use of like this.

Further specify the technical solution of the utility model below in conjunction with drawings and Examples:

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is right elevations of accompanying drawing 1.

With reference to accompanying drawing 1,2, spool 5 is contained in the valve body 6, spring 13 is contained in the lower end valve body 6 of spool 5, spring seat 20 is contained in the lower end of valve body 6, there is internal and external threads the lower end of valve body 6, there is outside thread the upper end, lower end cap 18 usefulness screw threads are installed in the lower end of valve body 6, a packing ring 14 is equipped with in the centre, one two pass joint 19 of outside cover of valve body 6, on, under packing ring 14 is arranged, upper end cap 4 screw threads are connected on valve body 6 upper ends, in the middle of the upper end cap 4 tapped through hole is arranged, adorn a hollow screw 1 in the tapped through hole, a hollow through hole of going up is arranged on the hollow screw 1, pipe joint 2 is socketed in the last through hole of hollow screw 1, there is packing ring 3 at pipe joint 2 two ends, and machine oil pipe 22 and pipe joint 2 welding make the interior engine oil pressure of body act on the top of spool 5 by machine oil pipe 22.Starting mechanism comprises a switch starter body 9, its outside thread one end is contained on the joint 19, there is packing ring 3 centre, switch awl core 7 vertically interts in the conical core hole of switch body 9, a handle 8 is equipped with in the upper end, a spring 11 is equipped with in the lower end, there are packing ring 10 and cotter pin 12 in the two ends of spring 11, hollow screw is contained in the interior threaded hole of switch body 9, pipe joint 23 is sleeved on the through hole of hollow screw, there is packing ring at two ends, are enclosed within on the nylon tube 15 and following pipe joint 24 on the pipe joint 23, and there is packing ring on pipe joint 24 both sides, the hollow screw screw thread that is with pipe joint 24 is connected in the hollow screw 16, hollow screw 16 screw threads are connected in the oilhole of lower end cap, and there is packing ring 17 on the oilhole both sides, and hollow screw 16 joins with high pressure oil pump.

Above-mentioned starting diesel oil oil circuit also can communicate the starting diesel engine with one pair of diesel fuel tanks and an oil passage control valve with the oil pipe that leads to high pressure oil pump.

Claims (6)

1, diesel engine lubricating oil decompression automatic stop arrangement, it is characterized in that: a machine oil decompression autostop valve body is arranged, spool is housed in the valve body, valve body wall has the oilhole corresponding with through hole on the spool, between spool lower end and valve body lower end spring is housed, the valve body outside is set with the joint that can connect the diesel oil road with the oilhole corresponding part; Valve body one end is equipped with upper end cap, and the machine oil pipeline in upper end cap and the body joins, and the machine oil pipeline communicates with this end cap inner valve body; The other end of valve body is equipped with lower end cap, and the interface that communicates with valve body is arranged on the lower end cap, and interface joins with the oil pipe that leads to high pressure oil pump, and a starting diesel oil oil circuit and the above-mentioned oil pipe that leads to high pressure oil pump are connected; Starting diesel oil oil circuit and starting mechanism join.

2, diesel engine lubricating oil decompression automatic stop arrangement according to claim 1; it is characterized in that: a described interface that is sleeved on the joint in the valve body outside leads to a termination of starting mechanism; another interface and diesel oil oil circuit are connected; the other end of starting mechanism and the interface of lower end cap are connected, and communicate with the oil pipe that leads to high pressure oil pump.

3, diesel engine lubricating oil decompression automatic stop arrangement according to claim 1; it is characterized in that: described starting mechanism comprises the switch starter body that an interface with the joint in the above-mentioned valve body outside is connected; the oil through that is contained in the switch awl core in the switch body is corresponding with the conical core hole of switch body; handle is equipped with in the upper end of switch awl core; the other end of switch starter body is equipped with the hollow screw that connects hollow oil connection; the lower end of hollow oil pipe joins by another hollow oil connection, hollow screw and lower end cap interface, and communicates with the oil pipe that leads to high pressure oil pump.

4, according to claim 2 or 3 described diesel engine lubricating oil decompression automatic stop arrangements, it is characterized in that: the described spool outside is fluted, and the cross through hole on the spool is positioned at groove.

5, diesel engine lubricating oil decompression automatic stop arrangement according to claim 4 is characterized in that: described valve body upper end inwall is useful on and stops the excessively descending step hole of spool and the step of spool to match.

6, diesel engine lubricating oil decompression automatic stop arrangement according to claim 5 is characterized in that: between lower end and the spring spring seat is arranged in the described valve body.

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