CN102425521A - Starting system and method of aboard self-contained engine of crane in low temperature environment - Google Patents
Starting system and method of aboard self-contained engine of crane in low temperature environment Download PDFInfo
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- CN102425521A CN102425521A CN2011103675522A CN201110367552A CN102425521A CN 102425521 A CN102425521 A CN 102425521A CN 2011103675522 A CN2011103675522 A CN 2011103675522A CN 201110367552 A CN201110367552 A CN 201110367552A CN 102425521 A CN102425521 A CN 102425521A
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- hydraulic
- self
- starting
- engine
- hydraulic pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/38—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with separate prime movers for crane and vehicle
Abstract
The invention discloses a starting system of an aboard self-contained engine of a crane in a low temperature environment. The starting system comprises an aboard hydraulic system provided with an aboard hydraulic oil pump, a hydraumatic auxiliary start-up system with a hydraumatic auxiliary starting motor, a pressure oil source for providing power to the hydraumatic start-up system, and a control valve used for controlling the hydraumatic auxiliary starting motor. The invention discloses a starting method of the aboard self-contained engine of the crane in the low temperature environment. The starting system and method provided by the invention have the beneficial effects that even in a place which lacks of resources in the low environmental temperature, the aboard self-contained engine can be started up without spending a good deal of manpower and material resources and time; only one person can finish starting the aboard self-contained engine in the low temperature environment without consuming external resources; and only the crane can rapidly, smoothly, securely finish starting of the aboard engine.
Description
Technical field
The present invention relates to engineering machinery field, relate in particular to help the system and method that the crane self-contained engine starts under low temperature environment.
Background technique
At present, on hoister in large tonnage, getting on and off all has independently engine system, especially in the engine system of getting on the bus.Owing to receive the restriction in space, motor directly links to each other with hydraulic-pressure pump.So in the process of engine start, motor not only will overcome the resisting moment of motor self, also will overcome hydraulic-pressure pump system initial resistance square.Under the situation that particularly ambient temperature is low in the winter time,, cause the resisting moment of motor self and the resisting moment of hydraulic-pressure pump system to increase because the stickiness of hydraulic oil, lubricant oil is higher.Along with the continuous reduction of ambient temperature, this resisting moment can increase exponentially, thereby causes under the environment of low temperature, and last car engine can't start rapidly or can not start.
Along with the hoist user to operating ambient temperature require increasingly high, for example in extremely cold regional operation, thus press for now a kind of for low temperature start down on the method for car engine, thereby the hydraulic system proper functioning is provided convenience.
Current, in order to solve the startup problem of car engine, generally adopt three kinds of methods:
First kind, break off being connected of motor and hydraulic-pressure pump system for setting up clutch between last car engine and the oil pump.Through solving the cold-starting problem of motor self, make engine start earlier, drive the running of hydraulic-pressure pump system again.The defective of this method is: under the ultralow temperature situation, the hydraulic oil stickiness is too high, and the primer fluid oil-pressing pump damages hydraulic element easily by force, thereby very easily causes the system failure.
Second kind, change high-quality hydraulic oil, thereby with the smooth ato unit of the resisting moment that reduces the hydraulic-pressure pump system.The defective of this method is: change hydraulic oil and need lot of manpower and material resources, and in the very big different regions operation of the temperature difference, hoist work efficient has very big difference, thereby also possibly cause that the rotten of hydraulic oil causes any property loss simultaneously.
The third, manual work is crane engine system, hydraulic system heating, as placing electric oven, on motor, oil pump, fuel tank and hydraulic pipe line, adding hot water.Be that CN201020235304.3, patent name are to disclose in a kind of hoist cold-starting technology in the patent document of engine cold-starting preheating and operator cabin heating system for example in the patent No.; Its method that adopts mainly is the circulatory mediator process heat exchange through engine cooling system; Improve the temperature of engine cylinder-body and lubricating oil; The heater of operator cabin is under the effect of radiator, and the temperature that making gets on the bus keeps certain supplies motor under low temperature condition, can start.Be that CN200720039751.X, patent name are in the patent document of engine cold-starting Preheating unit for example again in the patent No.; Its method that adopts mainly is through on the basis of former engine start circuit arrangement, setting up insurance, relay, automatic reset switch and coil; And the termination battery positive voltage that will insure, the other end is connected with an end of relay contact and an end of automatic reset switch.Under the low-temperature condition, the main switch of closed storage battery and automatic reset switch, electric current is through the coil at insurance, relay contact and middle cold air suction port place, thus the coil heating heated air, the air after the heating gets into start-up system, to promote engine start.The defective of those methods is: need great amount of manpower and material resources, cost is high; Needing extra power simultaneously is that it provides heat, like power supply, the article that can supply burn, WATER AS FLOW MEDIUM etc.It just can't start to motor itself at low temperatures, and the starting torque of minimizing is few, does not consider the moment of torsion that hydraulic system increases at all.
In view of this, but be badly in need of providing a kind of in the crane system and can make the clean boot and need not to expend the startup method of higher manpower and materials under low temperature condition of crane self-contained engine system.
Summary of the invention
But the invention discloses and a kind ofly can make the clean boot and need not to expend the start-up system of higher manpower and materials under low temperature condition of crane self-contained engine system, be difficult in a difficult problem quick under the low temperature environment, convenient, smooth and easy startup to solve existing crane self-contained engine system.
Goal of the invention of the present invention realizes through following technical proposals:
The start-up system of a kind of crane self-contained engine under low temperature environment comprises the last vehicle hydraulic system that has the hydraulic-pressure pump of getting on the bus, and the said self-contained engine of getting on the bus comprises the driving axis, it is characterized in that: said start-up system also comprises:
The hydraulic pressure auxiliary starting system, said hydraulic pressure auxiliary starting system comprises hydraulic pressure assistant starting motor, and said hydraulic pressure assistant starting motor is connected on the driving axis of the self-contained engine of getting on the bus or in the startup belt system of the self-contained engine of getting on the bus;
For said hydraulic pressure auxiliary starting system provides the pressure oil-source of power, said pressure oil-source is communicated with said hydraulic pressure auxiliary starting system hydraulic pipe line, and
Be used to control the control valve of said hydraulic pressure assistant starting motor, said control valve is connected with said hydraulic pressure auxiliary starting system.
Preferably, said pressure oil-source is the power pumping plant of the following vehicle hydraulic system of said hoist, and further, said pressure oil-source is for providing the small-sized hydraulic system of quick pressure oil-source.
Preferably, last car engine comprises flywheel, and the rear of said flywheel directly connects the power source hydraulic-pressure pump in the vehicle hydraulic system.Control valve in the said assistant starting hydraulic system is installed on the car engine, and links to each other with following vehicle hydraulic system with rapid pipe joint through flexible pipe.
The invention also discloses the startup method of a kind of crane self-contained engine under low temperature environment, said hoist comprises the last vehicle hydraulic system that has the hydraulic-pressure pump of getting on the bus, and the said self-contained engine of getting on the bus comprises the driving axis, and said method comprises:
Start the hydraulic pressure auxiliary starting system, said hydraulic pressure auxiliary starting system comprises hydraulic pressure assistant starting motor, and said hydraulic pressure assistant starting motor is connected on the driving axis of the self-contained engine of getting on the bus or in the startup belt system of the self-contained engine of getting on the bus;
Start the starting electrical machinery on the said self-contained engine of getting on the bus, so that said starting electrical machinery and said assistant starting motor provide starting torque to the said self-contained engine of getting on the bus simultaneously;
Control the rotation of said hydraulic pressure assistant starting motor through hydraulic pressure assistant starting control valve, thereby stop moment of torsion being provided to the said self-contained engine of getting on the bus;
Control transformation through said hydraulic pressure assistant starting control valve; The said vehicle hydraulic system of going up provides stable low-pressure hydraulic oil sources to think said assistant starting motor fuel feeding, thereby makes said assistant starting hydraulic system be full of fluid to guarantee that motor does not receive system failure and prevents that the motor emptying phenomenon from taking place.
Beneficial effect of the present invention: when ambient temperature is low,, also need not to spend great amount of manpower and material resources and great amount of time and can start the self-contained engine of getting on the bus even if in the place that lacks resource; The self-contained engine of getting on the bus that only needs a people just can accomplish under low temperature environment starts, and need not to expend external resource, only needs hoist itself just can accomplish the startup of going up car engine quick, smooth and easy, safely.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the theory structure schematic representation of the start-up system of crane self-contained engine according to the invention under low temperature environment;
Fig. 2 is the startup structural drawing of getting on the bus of the start-up system of crane self-contained engine according to the invention under low temperature environment.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technological scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Shown in Fig. 1-2, the start-up system of crane self-contained engine according to the invention under low temperature environment, comprise one have a hydraulic-pressure pump of getting on the bus last vehicle hydraulic system, the said self-contained engine 1 of getting on the bus comprises the driving axis.Said start-up system also comprises: the hydraulic pressure auxiliary starting system, and for said hydraulic pressure auxiliary starting system provides the pressure oil-source of power and control valve 3.
Said hydraulic pressure auxiliary starting system comprises hydraulic pressure assistant starting motor 2, and said hydraulic pressure assistant starting motor 2 is connected on the driving axis of the self-contained engine 1 of getting on the bus or in the startup belt system of the self-contained engine of getting on the bus.Said pressure oil-source is communicated with said hydraulic pressure auxiliary starting system hydraulic pipe line.Said control valve 3 is used to control said hydraulic pressure assistant starting motor 2, and said control valve 3 is connected with said hydraulic pressure auxiliary starting system.The said hydraulic pressure assistant starting motor 2 said hydraulic pressure assistant starting control valve 3 that is connected; Through the running of said hydraulic pressure assistant starting control valve 3 control hydraulic pressure assistant starting motors 2, the starting torque that increases last car engine is to reach the purpose of car engine in the smooth startup.
Said hydraulic pressure assistant starting motor 2 provides pressure oil-source by the following vehicle hydraulic system of said hoist, perhaps by small-sized power pumping plant and can provide the small-sized hydraulic system of quick pressure oil-source that pressure oil-source is provided.
Further, the rear of the flywheel of last car engine directly connects the power source hydraulic-pressure pump in the vehicle hydraulic system.Control valve 3 in the assistant starting hydraulic system is installed on the car engine, and links to each other with following vehicle hydraulic system with rapid pipe joint through flexible pipe.
For the startup method of crane self-contained engine under low temperature environment, the P on the at first said hydraulic pressure assistant starting control valve 3, T mouth according to as the Placement among Fig. 1, through 20MPa solenoid valve and use hydraulic oil pipe and insert time specific hydraulic oil port of vehicle hydraulic system.Start the rocker switch that is installed in the control cab of getting on the bus, thereby the signal of ato unit is issued controller.Said controller comprises vehicle controller, following vehicle controller.Said controller is used to receive actuating signal and the output after treatment that rocker switch sends, and wherein one the tunnel DT1, DT2 is got.DT1, DT2 get electric after, starting electrical machinery on the said self-contained engine of getting on the bus and said hydraulic pressure assistant starting motor 2 provide starting torque to start the said self-contained engine of getting on the bus simultaneously.
After the said self-contained engine of getting on the bus started, DT1, DT2 obtained dead electricity behind the dead electricity signal of said controller, the rotation under the effect of said hydraulic pressure assistant starting control valve 3 of said hydraulic pressure assistant starting motor 2 this moment, thus lose the effect that starting torque is provided.Simultaneously said upward vehicle hydraulic system provides stable low pressure oil sources from the P ' mouth of said assistant starting control valve 3 to said hydraulic pressure assistant starting motor 2, causes said hydraulic pressure assistant starting motor 2 to damage to prevent said hydraulic pressure assistant starting motor 2 because of inhaling sky.Arrive this, the said self-contained engine of getting on the bus normally starts.
Start the rocker switch that is installed in the control cab of getting on the bus, thereby the signal of ato unit is issued vehicle controller.Last vehicle controller divides two-way to send signal.Wherein, riches all the way goes out signal to the following vehicle controller and the engine start motor of getting on the bus; Riches all the way goes out electrical signal DT1, DT2 is got.The engine start motor of getting on the bus like this obtains signal, thereby the starting torque ato unit is provided for motor.Simultaneously, following vehicle hydraulic system is that auxiliary hydraulic system provides pressure oil-source, is that motor provides starting torque thereby make through the motor in the assistant starting hydraulic system.Get on the bus behind the engine start to last vehicle hydraulic system provides the motivational drive hydraulic system oil pump work of getting on the bus, promptly can provide constant low pressure oil sources to prevent that motor from inhaling emptyly after the engine start, increase the starting torque of motor simultaneously, make the engine start difficulty.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the start-up system of a crane self-contained engine under low temperature environment comprises the last vehicle hydraulic system that has the hydraulic-pressure pump of getting on the bus, and the said self-contained engine of getting on the bus comprises the driving axis, it is characterized in that, said start-up system also comprises:
The hydraulic pressure auxiliary starting system, said hydraulic pressure auxiliary starting system comprises hydraulic pressure assistant starting motor, and said hydraulic pressure assistant starting motor is connected on the driving axis of the self-contained engine of getting on the bus;
For said hydraulic pressure auxiliary starting system provides the pressure oil-source of power, said pressure oil-source is communicated with said hydraulic pressure auxiliary starting system hydraulic pipe line, and
Be used to control the control valve of said hydraulic pressure assistant starting motor, said control valve is connected with said hydraulic pressure auxiliary starting system.
2. the start-up system of crane self-contained engine as claimed in claim 1 under low temperature environment is characterized in that: said pressure oil-source is the power pumping plant of the following vehicle hydraulic system of said hoist.
3. the start-up system of crane self-contained engine as claimed in claim 2 under low temperature environment is characterized in that: said pressure oil-source is for providing the small-sized hydraulic system of quick pressure oil-source.
4. the start-up system of crane self-contained engine as claimed in claim 1 under low temperature environment is characterized in that: the said car engine of going up comprises flywheel, and the rear of said flywheel directly connects the pressure oil-source in the vehicle hydraulic system.
5. the start-up system of crane self-contained engine as claimed in claim 1 under low temperature environment, it is characterized in that: said control valve is installed on the car engine, and links to each other with following vehicle hydraulic system with rapid pipe joint through flexible pipe.
6. the startup method of a crane self-contained engine under low temperature environment, said hoist comprises the last vehicle hydraulic system that has the hydraulic-pressure pump of getting on the bus, and the said self-contained engine of getting on the bus comprises the driving axis, and said method comprises:
Start the hydraulic pressure auxiliary starting system, said hydraulic pressure auxiliary starting system comprises hydraulic pressure assistant starting motor, and said hydraulic pressure assistant starting motor is connected on the driving axis of the self-contained engine of getting on the bus;
Start the starting electrical machinery on the said self-contained engine of getting on the bus, so that said starting electrical machinery and said assistant starting motor provide starting torque to the said self-contained engine of getting on the bus simultaneously;
Control the rotation of said hydraulic pressure assistant starting motor through hydraulic pressure assistant starting control valve, thereby stop moment of torsion being provided to the said self-contained engine of getting on the bus;
Control transformation through said hydraulic pressure assistant starting control valve; The said vehicle hydraulic system of going up provides stable low-pressure hydraulic oil sources to think said assistant starting motor fuel feeding, thereby makes said assistant starting hydraulic system be full of fluid to guarantee that motor does not receive system failure and prevents that the motor emptying phenomenon from taking place.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103675522A CN102425521A (en) | 2011-11-18 | 2011-11-18 | Starting system and method of aboard self-contained engine of crane in low temperature environment |
| PCT/CN2012/074224 WO2013071733A1 (en) | 2011-11-18 | 2012-04-17 | Starting system and method of upper crane self-contained engine of crane in low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103675522A CN102425521A (en) | 2011-11-18 | 2011-11-18 | Starting system and method of aboard self-contained engine of crane in low temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102425521A true CN102425521A (en) | 2012-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103675522A Pending CN102425521A (en) | 2011-11-18 | 2011-11-18 | Starting system and method of aboard self-contained engine of crane in low temperature environment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102425521A (en) |
| WO (1) | WO2013071733A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078819A1 (en) * | 2011-11-28 | 2013-06-06 | 湖南三一智能控制设备有限公司 | Engineering truck and driving system thereof |
| CN103321811A (en) * | 2013-05-30 | 2013-09-25 | 三一汽车起重机械有限公司 | Engineering machinery and engine starting ignition system thereof |
| CN103588115A (en) * | 2013-10-25 | 2014-02-19 | 三一汽车起重机械有限公司 | Engineering machine and machine transmission system thereof |
| CN103674363A (en) * | 2012-09-18 | 2014-03-26 | 重庆长安汽车股份有限公司 | Test system for low-temperature starting resisting moment of engine |
| CN103935898A (en) * | 2014-04-23 | 2014-07-23 | 马云鹏 | Ultralow-temperature-resistant crane moment limiter |
| CN111101553A (en) * | 2020-01-14 | 2020-05-05 | 徐州徐工矿业机械有限公司 | Electric control rotary brake release system of hydraulic excavator and use method |
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| JPS5920564A (en) * | 1982-07-26 | 1984-02-02 | Hitachi Constr Mach Co Ltd | Engine starter |
| JPH1181384A (en) * | 1997-09-01 | 1999-03-26 | Hitachi Constr Mach Co Ltd | Construction machine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013078819A1 (en) * | 2011-11-28 | 2013-06-06 | 湖南三一智能控制设备有限公司 | Engineering truck and driving system thereof |
| CN103674363A (en) * | 2012-09-18 | 2014-03-26 | 重庆长安汽车股份有限公司 | Test system for low-temperature starting resisting moment of engine |
| CN103321811A (en) * | 2013-05-30 | 2013-09-25 | 三一汽车起重机械有限公司 | Engineering machinery and engine starting ignition system thereof |
| CN103321811B (en) * | 2013-05-30 | 2015-07-08 | 三一汽车起重机械有限公司 | Engineering machinery and engine starting ignition system thereof |
| CN103588115A (en) * | 2013-10-25 | 2014-02-19 | 三一汽车起重机械有限公司 | Engineering machine and machine transmission system thereof |
| WO2015058704A1 (en) * | 2013-10-25 | 2015-04-30 | 三一汽车起重机械有限公司 | Engineering machinery and upper transmission system thereof |
| CN103588115B (en) * | 2013-10-25 | 2015-08-12 | 三一汽车起重机械有限公司 | Construction machinery and equipment and machine transmission system thereof |
| CN103935898A (en) * | 2014-04-23 | 2014-07-23 | 马云鹏 | Ultralow-temperature-resistant crane moment limiter |
| CN103935898B (en) * | 2014-04-23 | 2016-02-17 | 马云鹏 | A kind of crane torque limiter of resistance to ultralow temperature |
| CN111101553A (en) * | 2020-01-14 | 2020-05-05 | 徐州徐工矿业机械有限公司 | Electric control rotary brake release system of hydraulic excavator and use method |
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| Publication number | Publication date |
|---|---|
| WO2013071733A1 (en) | 2013-05-23 |
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Application publication date: 20120425 |