CN204326145U - The comprehensive flame-out protection device of loader - Google Patents
The comprehensive flame-out protection device of loader Download PDFInfo
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- CN204326145U CN204326145U CN201420775227.9U CN201420775227U CN204326145U CN 204326145 U CN204326145 U CN 204326145U CN 201420775227 U CN201420775227 U CN 201420775227U CN 204326145 U CN204326145 U CN 204326145U
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Abstract
The utility model relates to the comprehensive flame-out protection device of a kind of loader, level sensor connects flame-out relay by control element, during for cooling water tank of engine lack of water to certain water level, control element sends the flame-out instruction of engine misses, flame-out relay makes flame-out power switch power-off, and lack of water indicator lamp is lighted; Pyrostat is started to connect flame-out relay by control element, exceed the temperature of setting for engine temperature after, control element sends the instruction that motor stops working immediately automatically, and flame-out relay makes flame-out power switch power-off, and makes motor cross high temperature indicator lamp to light; Engine oil pressure pickup connects flame-out relay by control element, and time too low for engine oil pressure, control element sends engine misses flame-out instruction immediately automatically, and flame-out relay makes flame-out power switch power-off, and inorganic oil pressure indicator light is lighted.This device can be monitored indexs such as loader water tank water level, engine oil pressure, engine temperatures.
Description
Technical field
The utility model relates to a kind of loader, the comprehensive flame-out protection device of especially a kind of loader.
Background technology
Water cooling system, be the key link controlling engine temperature, water cooling system fault is one of major failure of loader engine overheat scuffing of cylinder bore always, causes the situation of this fault a lot:
(1) when water tank lacks water, work on;
(2) in water-cooling circulating system, water tank upper and lower conduit comes off or radiator leak, causes cistern water level to decline rapidly;
(3) when lack of water indicator lamp shows unclear, rainy day radiator leak can not Timeliness coverage;
(4) driver fails timely reporting fault, causes failure propagation;
(5) fresh driver is unfamiliar with operating process, when forgetting inspection cistern water level, directly starts working, has neglected the loader of part water tank lacks water.
Loader is through cistern water level of being everlasting is lower when, and the work of high load capacity ground, motor loses temperature and controls, and exacerbates engine overheat, have impact on the application life of motor widely, causes the faults such as engine scuffing damage frequently to have generation.But old-fashioned water level induction can not meet nowadays driver's requirements of one's work.
Open (bulletin) number CN201250704Y of patent, disclose a kind of car engine temperature, oil pressure overload protection arrangement, be made up of coolant temperature monitor and engine oil pressure monitor, the power input of coolant temperature monitor is connected with automobile storage battery anode and automobile storage battery negative terminal, the output control terminal of coolant temperature monitor is connected with the output control terminal of engine oil pressure monitor, the power input of engine oil pressure monitor and automobile storage battery anode, automobile storage battery negative terminal is connected with automobile current generator output live wire, the output control terminal of engine oil pressure monitor is also connected with the power inleting terminal of vehicle fuel electromagnetic valve.The utility model structure is simple, reliable operation, once coolant temperature exceedes system design pressure in car engine cooling system, or when in automobile engine lubricating oil system, engine oil pressure is on the low side, automatically cut off the power supply of vehicle fuel electromagnetic valve immediately, engine stop work, avoid scuffing of cylinder bore, axis tile fault occur, automobile can not be travelled by tape jam, eliminate driving accident hidden danger.
Open (bulletin) number CN202007702U of patent, disclose a kind of automatic power-off protection device at excessive engine temperature, its structure is made up of controller, temperature pick up.It is characterized in that: the signal end of controller is connected with temperature pick up, the switch terminals of controller is connected with the line trigger signal of igniter.The beneficial effects of the utility model are: have and detect engine operating temperature and the function that can control engine misses.
Open (bulletin) number CN201090557Y of patent, disclose a kind of crawler loader operating oil way no-voltage protection system, it comprises fuel tank, the oil filter be connected with fuel tank successively, oil pump and crawler-type loader work working connection, it is characterized in that: also comprise and be arranged on pressure sensor in working connection and electro-hydraulic reversing valve, and the main control circuit to be electrically connected with pressure sensor and electro-hydraulic reversing valve, wherein: the input of electro-hydraulic reversing valve is connected with oily delivery side of pump, an output of electro-hydraulic reversing valve is connected with work working connection, another output is directly connected with fuel tank.When working connection decompression, the analog signal of decompression is converted to data signal input main control circuit by pressure sensor, and then drive reversal valve work, cut-out work working connection, connect tank oiling channel oil, make hydraulic oil return fuel tank from fuel tank again through reversal valve, when flame-out, prevent the generation of leakage of oil, and operator can drive machinery exits high-temperature operation environment immediately and place under repair.
Above-mentioned patent detects domestic automobile engine temperature, oil pressure overload etc. only; but do not integrate water level detecting, engine oil pressure detects, indicating oven temp. of engine detects integrated protection; loader water tank lack of water of boiling cannot be applicable to and cause engine overheat; due to the adverse circumstances of operating mode; the busy driver's reaction of the work that adds not in time; water-level alarm, and old water temperature alarm module can not well be finished the work task dispatching.Therefore, the motor comprehensive protection device designing a kind of Novel water collection position, oil pressure, engine high-temperature is needed.
Summary of the invention
In order to improve the situation having a strong impact on loader service life of aeroengine, reducing the running cost of Liu work loader, improving loader operating efficiency, adapt to the requirement that front work is produced, the utility model provides a kind of loader comprehensive flame-out protection device.
The technical solution of the utility model is: the comprehensive flame-out protection device of a kind of loader; comprise level sensor, flame-out relay, engine oil pressure pickup, start pyrostat, lack of water indicator lamp, inorganic oil pressure indicator light, motor to cross high temperature indicator lamp, flame-out power switch, control element, its feature is:
Level sensor connects flame-out relay by control element, during for cooling water tank of engine lack of water to certain water level, the time delay 60-80 that control element sends engine misses to stop working instruction second, and flame-out relay makes flame-out power switch power-off, and lack of water indicator lamp is lighted;
Pyrostat is started to connect flame-out relay by control element, exceed the temperature of setting for engine temperature after, control element sends the flame-out instruction of engine misses automatically, and flame-out relay makes flame-out power switch power-off, and makes motor cross high temperature indicator lamp to light;
Engine oil pressure pickup connects flame-out relay by control element, time too low for engine oil pressure, the time delay 60-80 that control element sends engine misses automatically to stop working instruction second, and flame-out relay makes flame-out power switch power-off, and inorganic oil pressure indicator light is lighted.
Control element is triple-pole switch pipe.
The triple-pole switch pipe base stage of level sensor connection control element, when low water stage or the open circuit of cooling water tank of engine being detected for level sensor, the detection induction internal resistance of level sensor increases, triple-pole switch management and control pole tension is raised at a slow speed by electric capacity, flame-out relay is obtained electric, flameout electromagnetic valve hold-in winding dead electricity, engine misses, lack of water indicator lamp Chang Liang.
Engine oil pressure pickup is by the triple-pole switch pipe of machine oil gauge tap connection control element, when motor inner engine oil hypotony or signal open circuit being detected for engine oil pressure pickup, engine oil pressure pickup exports control signal to machine oil gauge tap by the switch that machine oil is under-voltage or with no pressure, machine oil gauge tap control relay is made to obtain electric, triple-pole switch pipe open base and base voltage raise, flame-out relay obtains electric, flameout electromagnetic valve hold-in winding dead electricity, engine misses, low oil pressure indicator lamp Chang Liang.
Engine temperature sensing unit is by the triple-pole switch pipe of engine temperature gauge tap connection control element, when indicating oven temp. of engine or signal open circuit being detected for engine temperature sensing unit, temperature pick up passes through the signal of indicating oven temp. of engine or open circuit, send temp control switch pipe to, make temp control switch pipe, at open-circuit condition, relay obtains electric, thus make flame-out relay electricly direct immediately, flameout electromagnetic valve hold-in winding dead electricity, engine misses, indicating oven temp. of engine indicator lamp Chang Liang.
This loader comprehensive protection device can detect three sensor signal lines dropping situations automatically.Come off if any signal lamp line.Just can automatically flame-out relay be obtained electric, vehicle is stopped working, and make corresponding indicator lamp bright.
Delay function: in water tank lacks water situation, can after dispatching a car again, and within the time of time delay, the feasible place added water that sails to is carried out adding water and eliminate vehicle and to be jolted water tank lacks water misoperation, has also hidden the low oil pressure starting state before dispatching a car simultaneously.
The beneficial effects of the utility model are:
The utility model collection water level detecting, engine oil pressure detect, indicating oven temp. of engine is detected as one, and this device can be monitored multinomial key technical index such as loader water tank water level, engine oil pressure, engine temperatures.Once a certain index exceeds preset value, this device immediately by loader engine misses, can reach the object preventing failure propagation.Improve the situation having a strong impact on loader service life of aeroengine, reduce the running cost of Liu work loader, improve loader operating efficiency, and the requirement of front work production can be adapted to.
Accompanying drawing explanation
Fig. 1 is detection control block diagram of the present utility model;
Fig. 2 is structure chart of the present utility model.
Detailed description of the invention
As Fig. 1; shown in 2; the comprehensive flame-out protection device of a kind of loader, comprises level sensor R, flame-out relay J and flame-out power switch, engine oil pressure pickup S, starts pyrostat H, lack of water indicator lamp D5, inorganic oil pressure indicator light D6, motor to cross high temperature indicator lamp D7, control element etc.Control element is triple-pole switch pipe.
Level sensor R connects flame-out relay J by control element, and during for cooling water tank of engine lack of water to certain water level, control element sends the flame-out instruction of engine misses, and flame-out relay J makes flame-out power switch power-off, and lack of water indicator lamp D5 is lighted; Pyrostat H is mobilized to connect flame-out relay J by control element, exceed the temperature of setting for engine temperature after, control element sends the flame-out instruction of engine misses automatically, and flame-out relay J makes flame-out power switch power-off, and makes motor cross high temperature indicator lamp to light D7; Engine oil pressure pickup S connects flame-out relay J by control element, and time too low for engine oil pressure, control element sends the flame-out instruction of engine misses automatically, and flame-out relay J makes flame-out power switch power-off, and inorganic oil pressure indicator light D6 is lighted.
The effect that each element of the utility model mainly plays is:
1. when cooling water tank of engine lack of water is to certain water level, send the flame-out instruction of engine misses, lack of water indicator lamp also lights simultaneously.
2. water level is low, and water level detecting induction internal resistance increases, then raise control element triple-pole switch pipe electromotive force, play on-off action, make executive component lack of water relay obtain electric.Relay obtains and electricly causes flameout electromagnetic valve hold-in winding dead electricity, engine misses.Lack of water indicator lamp Chang Liang.
3. when engine oil pressure is too low, loader works on also can cause engine damage, so plant here situation generation in order to anti-, this module is also considered and is given signal by the under-voltage switch of machine oil, allow the power-off of machine oil gauge tap, thus play equally and raise control element triple-pole switch pipe base voltage, in like manner play flameout electromagnetic valve hold-in winding dead electricity, engine misses, the effect of low oil pressure indicator lamp Chang Liang.
4., for preventing engine overheat, mounting temperature sensor on the engine, after engine temperature exceedes the temperature of module setting, controller sends the flame-out instruction of engine misses automatically, and engine overheat indicator lamp lights simultaneously.
Claims (5)
1. the comprehensive flame-out protection device of loader; comprise level sensor, flame-out relay, engine oil pressure pickup, start pyrostat, lack of water indicator lamp, inorganic oil pressure indicator light, motor to cross high temperature indicator lamp, flame-out power switch, control element, it is characterized in that:
Described level sensor connects flame-out relay by control element, during for cooling water tank of engine lack of water to certain water level, the time delay 60-80 that control element sends engine misses to stop working instruction second, and flame-out relay makes flame-out power switch power-off, and lack of water indicator lamp is lighted;
The described pyrostat that starts connects flame-out relay by control element, exceed the temperature of setting for engine temperature after, control element sends the instruction that motor stops working immediately automatically, and flame-out relay makes flame-out power switch power-off, and makes motor cross high temperature indicator lamp to light;
Described engine oil pressure pickup connects flame-out relay by control element, time too low for engine oil pressure, the time delay 60-80 that control element sends engine misses automatically to stop working instruction second, and flame-out relay makes flame-out power switch power-off, and inorganic oil pressure indicator light is lighted.
2. the comprehensive flame-out protection device of loader according to claim 1, is characterized in that: described control element is triple-pole switch pipe.
3. the comprehensive flame-out protection device of loader according to claim 2; it is characterized in that: the triple-pole switch pipe base stage of described level sensor connection control element; when low water stage or the signal open circuit of cooling water tank of engine being detected for level sensor; the detection induction internal resistance of level sensor increases; triple-pole switch management and control pole tension is raised at a slow speed by electric capacity, makes flame-out relay time delay obtain electric, flameout electromagnetic valve hold-in winding dead electricity; engine misses, lack of water indicator lamp Chang Liang.
4. the comprehensive flame-out protection device of loader according to claim 2, it is characterized in that: described engine oil pressure pickup is by the triple-pole switch pipe of machine oil gauge tap connection control element, when motor inner engine oil hypotony or signal open circuit being detected for engine oil pressure pickup, engine oil pressure pickup exports control signal to machine oil gauge tap by the switch that machine oil is under-voltage or with no pressure, machine oil gauge tap control relay is made to obtain electric, triple-pole switch pipe open base and base voltage raise, flame-out relay obtains electric, flameout electromagnetic valve hold-in winding dead electricity, engine misses, low oil pressure indicator lamp Chang Liang.
5. the comprehensive flame-out protection device of loader according to claim 2, it is characterized in that: described engine temperature sensing unit is by the triple-pole switch pipe of engine temperature gauge tap connection control element, when indicating oven temp. of engine or signal open circuit being detected for engine temperature sensing unit, temperature pick up passes through the signal of indicating oven temp. of engine or open circuit, send temp control switch pipe to, make temp control switch pipe, at open-circuit condition, relay obtains electric, thus make flame-out relay electricly direct immediately, flameout electromagnetic valve hold-in winding dead electricity, engine misses, indicating oven temp. of engine indicator lamp Chang Liang.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775227.9U CN204326145U (en) | 2014-12-10 | 2014-12-10 | The comprehensive flame-out protection device of loader |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420775227.9U CN204326145U (en) | 2014-12-10 | 2014-12-10 | The comprehensive flame-out protection device of loader |
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| CN204326145U true CN204326145U (en) | 2015-05-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014653A (en) * | 2016-07-08 | 2016-10-12 | 重庆大江动力设备制造有限公司 | Low-fuel-oil-level flameout control device and method for diesel generator set |
| CN113494110A (en) * | 2020-03-19 | 2021-10-12 | 斗山英维高株式会社 | Construction machine |
| CN116949907A (en) * | 2023-07-25 | 2023-10-27 | 陕西中环机械有限责任公司 | Automatic methane detection protection system for mining milling machine and implementation method |
-
2014
- 2014-12-10 CN CN201420775227.9U patent/CN204326145U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014653A (en) * | 2016-07-08 | 2016-10-12 | 重庆大江动力设备制造有限公司 | Low-fuel-oil-level flameout control device and method for diesel generator set |
| CN113494110A (en) * | 2020-03-19 | 2021-10-12 | 斗山英维高株式会社 | Construction machine |
| CN116949907A (en) * | 2023-07-25 | 2023-10-27 | 陕西中环机械有限责任公司 | Automatic methane detection protection system for mining milling machine and implementation method |
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