CN208486934U - Power transmission for engineering machinery is classified cooling system and its articulated truck - Google Patents
Power transmission for engineering machinery is classified cooling system and its articulated truck Download PDFInfo
- Publication number
- CN208486934U CN208486934U CN201820317163.6U CN201820317163U CN208486934U CN 208486934 U CN208486934 U CN 208486934U CN 201820317163 U CN201820317163 U CN 201820317163U CN 208486934 U CN208486934 U CN 208486934U
- Authority
- CN
- China
- Prior art keywords
- cooling
- unit
- heat exchanger
- engine
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 153
- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 98
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 239000002826 coolant Substances 0.000 claims abstract description 32
- 230000001105 regulatory effect Effects 0.000 claims description 47
- 238000010792 warming Methods 0.000 claims description 44
- 230000007246 mechanism Effects 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 description 27
- 230000017525 heat dissipation Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000036413 temperature sense Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 210000000635 valve cell Anatomy 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a kind of power transmissions for engineering machinery to be classified cooling system and its articulated truck, including first order cooling unit and second level cooling unit；The first order cooling unit is configured as absorbing heat from engine and distribute；The second level cooling unit is configured as absorbing heat from gearbox and distribute；Coolant liquid control unit is configured as changing the priority of the cooling of flow direction and gearbox and engine of the coolant liquid in cooling unit according to the height for going out liquid temperature for absorbing the coolant liquid after heat；It further include chilled(cooling) water supply (CWS) unit and heat-sink unit.Cooling system in the utility model uses hierarchy system, and respectively engine and gearbox radiates, and engine and gearbox can be made to work in suitable temperature simultaneously.Only one air-cooled radiator, at low cost in the cooling system, can be opened or closed according to operating condition needs for water pump, the fan in cooling system, more energy saving.
Description
Technical field
The utility model belongs to engineering machinery articulated truck field, and in particular to a kind of power for engineering machinery
Transmission classification cooling system and its articulated truck.
Background technique
Hinged type self-discharging automobile refers to the Transport Machinery between driver's cabin and car body with hinge joint and pendular ring.Articulator
Design philosophy originate from late 1960s Northern Europe, at that time the operating condition of bad weather and limited space there is an urgent need to
A kind of shovel soil transporting equipment between conventional rigid rear-unloading type carrier and scraper, this equipment is exactly present hinge
Connect formula dumper.Its purposes by initial gradually development and application of repairing the roads to mining industry, hydroelectric project, railway engineering and airport etc. no
In engineering project of the same trade, the type of transported material mainly has the transport of the loose unpacked materials such as soil, rock, sawdust and rubbish.
For being used for articulated truck power drive system, engine using in-line 6 cylinders or 8 cylinder type of V column, power from
200-400kw etc..Due to the road conditions very severe of operation, in order to improve the power performance of vehicle, transmission system is usual
Match the automatic gear-box with fluid torque-converter.Fluid torque-converter is the elasticity member between engine and gearbox train
Part, the hydrodynamic unit being made of pump impeller, turbine, guide wheel；Pump impeller is connected with engine flywheel, the gear shaft phase of turbine and gearbox
Even, the shell of turbine and gearbox is connected；Internal working fluid is gear box oil.
Under bending moment operating condition, fluid torque-converter can play the role of transmitting engine speed and torque, while generate big
Calorimetric amount, heating power generally in the 5%-25% that it transmits power, need to be equipped with corresponding cooling device, so that gear box oil
In 90-95 DEG C of optimum working temperature.Under bending moment operating condition, engine intercooler, water jacket heat dissipation are in maximum heat dissipation capacity demand, hair
Motivation water pump inlet temperature is 93 DEG C, and leaving water temperature is 100 DEG C after cooling each component of engine.
If only there are two types of selections by engine radiating and torque-converters heat dissipation series design.Selection one: torque-converters is radiated
It is placed in water inflow of the engine end, meets the cooling of torque-converters and requires, but will lead to that water inflow of the engine resistance is big, inflow temperature is higher than
It is required it is required that being unsatisfactory for the cooling of engine；Selection two: torque-converters is placed in engine water outlet end, because of engine outlet water temperature
It is 100 DEG C, then cannot reaches the cooling of torque-converters and require.Therefore power transmission common at present design uses double-radiator side
Case, engine radiator and gearbox radiator are mutually indepedent, and engine and gearbox have respective cooling water channel, are able to satisfy change
The cooling requirements of square operating condition.
Under operating condition of walking or drive slowly, the Retarder that articulated truck gearbox is equipped with is enabled, so that vehicle safety is steady
Lower long slope.Retarder is to generate damping using agitation gear box oil to produce the device for reaching retarded acting, is converted kinetic energy into
The thermal energy of gear box oil, this partial heat energy are also required to cooling system absorption.Under this operating condition, engine intercooler, water jacket heat dissipation
In minimum heat demand.Under normal conditions, fluid power jogging maximum power can reach or approach engine power rating, corresponding to dissipate
Hot device size is larger.
In current double-radiator scheme, only gearbox radiator participates in work, engine radiator under operating condition of walking or drive slowly
In idle state, significant wastage is generated.And double-radiator scheme weight is larger, occupied space causes difficult arrangement, it is at high cost,
Poor reliability.
That attempts to solve the problems, such as this has Chinese utility model patent CN200720046839: gearbox is cooling and one
The gearbox air-cooled radiator of small size is connected in series in engine radiating water route, can reduce the ruler of gearbox air-cooled radiator
It is very little.But there is problems in that one, since gearbox air-cooled radiator always can be cooling to gearbox, cause TOT Transmission Oil Temperature
Too low or heating is slow.TOT Transmission Oil Temperature is too low, and oil liquid is sticky, will cause insufficient lubrication and shift valve attonity, opens in vehicle
In dynamic process, it is desirable that TOT Transmission Oil Temperature energy rapid increase.Two, the cooling water in gearbox cooling circuit carries water by engine
Pump driving, it is excessive to will cause cooling circuit resistance.
Utility model content
In view of the above-mentioned problems, the power transmission that the utility model proposes a kind of for engineering machinery be classified cooling system and its
Articulated truck.
It realizes above-mentioned technical purpose, reaches above-mentioned technical effect, the utility model is achieved through the following technical solutions:
A kind of power transmission classification cooling system for engineering machinery, comprising:
Cooling unit, including first order cooling unit and second level cooling unit；
The first order cooling unit is configured as absorbing heat from engine and distribute；
The second level cooling unit is configured as absorbing heat from gearbox and distribute；
Coolant liquid control unit is configured as being changed cold according to the height for going out liquid temperature of the coolant liquid after absorption heat
But the priority of the cooling of flow direction and gearbox and engine of the liquid in cooling unit；
It further include chilled(cooling) water supply (CWS) unit and heat-sink unit, the heat-sink unit is configured as being connected with cooling unit and incite somebody to action
The device that the heat absorbed distributes.
The chilled(cooling) water supply (CWS) unit is expansion tank, the expansion as a further improvement of the utility model,
Water tank passes through interface 1a, 1c and 1d respectively and is connected respectively with heat-sink unit, the first cooling unit and the second cooling unit, further includes
Water main inlet port 1b；
The heat-sink unit includes radiator and the fan for radiator heat-dissipation, and the fan passes through fan clutch
Device is connected with engine, the radiator include two independent cooling water paths, respectively with the first cooling unit and second
Cooling unit is connected.
The cooling unit includes warming regulating valuve unit and water pump list as a further improvement of the utility model,
Member, the warming regulating valuve unit include an entrance and two outlets, go out liquid temperature according to the coolant liquid after absorption heat
High low adjustment fluid path；
Fluid path when liquid temperature is greater than given threshold out, between the warming regulating valuve unit connection and radiator
Be connected；When liquid temperature is less than given threshold out, the warming regulating valuve unit is connected in cooling unit by water pump mechanism
Circulating liquid access.
The threshold value of the temperature-sensitive regulating valve setting of the first order cooling unit is greater than the temperature-sensitive tune of second level cooling unit
The threshold value of valve setting is saved, gearbox is cooled down prior to engine.
The first order cooling unit includes the first warming regulating valve and the as a further improvement of the utility model,
One water pump, the entrance 2b of the first warming regulating valve are connected with the outlet 4b of engine, export under 2c and radiator
End interface 4b is connected, and outlet 2a is connected by the first water pump with the interface 4a of engine.
The second level cooling unit includes the second warming regulating valve and the as a further improvement of the utility model,
Two water pumps further include heat exchanger unit, the entrance 13b of the second warming regulating valve and the outlet 8b of heat exchanger unit
It is connected, outlet 13c is connected with the lower end interface 4d of radiator, and outlet 4a passes through entering for the second water pump and heat exchanger unit
Mouth 9a is connected.
Described as a further improvement of the utility model, include gearbox includes torque-converters and retarder, corresponding
The heat exchanger unit includes torque-converters heat exchanger and retarder heat exchanger；Alternatively, the torque-converters heat exchange
Device and retarder heat exchanger are the same heat exchanger；
The heat exchanger unit includes the oil circuit access being connected with gearbox and is connected with second level cooling unit
Cooling water path.
As a further improvement of the utility model, in the oil circuit access, the torque-converters heat exchanger it is upper
End interface 9c is connected with the oil circuit entrance 7-1a of torque-converters, the lower end interface 8d of the retarder heat exchanger and retarder
Oil circuit exports 7-2d and is connected；The upper end interface 8c of the retarder heat exchanger is connected with the oil circuit entrance 7-2c of retarder,
The lower end interface 8d of the retarder heat exchanger is connected with the oil circuit of retarder outlet 7-2d；
In the water route access, the cooling water is flowed out from the outlet end of the second water pump, passes sequentially through torque-converters heat
End interface 8a, lower end interface 8b on the water route of end interface 9a, lower end interface 9b, retarder heat exchanger on the water route of exchanger,
Finally access the entrance 13b of the second warming regulating valve.
The second level cooling unit further includes that bindiny mechanism and temperature pass as a further improvement of the utility model,
Sensor, the bindiny mechanism are arranged between engine and the second water pump, control power between the second water pump and engine
On-off or revolving speed；The bindiny mechanism is connected with temperature sensor, and the temperature sensor is cold according to the detected second level
But the size of unit absorbs the cooling water after heat temperature and given threshold issues on-off signal, the company to bindiny mechanism
Connection mechanism includes Water pump clutch or proportioning valve.
The first order cooling unit further includes and the first pump outlet as a further improvement of the utility model,
Connected control valve and heating volume, the heating volume is connected with radiator.
It as a further improvement of the utility model, include using the power transmission for engineering machinery described above point
Grade cooling system.
The utility model has the beneficial effects that the cooling system in the utility model uses hierarchy system, respectively engine
It radiates with gearbox, and engine and gearbox can be made to work in suitable temperature simultaneously.In the cooling system only
There is an air-cooled radiator, it is at low cost, it is easy to arrange, can be opened according to operating condition needs for water pump, the fan in cooling system
It opens or closes, it is more energy saving.
Detailed description of the invention
Fig. 1 power transmission is classified cooling one system pie graph of embodiment；
Each component connector explanation of Fig. 2；
Fig. 3 power transmission is classified one start operating performance schematic diagram of cooling system embodiment；
Fig. 4 power transmission is classified one bending moment operating condition schematic diagram of cooling system embodiment；
Fig. 5 power transmission is classified the jogging operating condition schematic diagram of cooling system embodiment one；
Fig. 6 power transmission is classified cooling system embodiment two system and constitutes figure；
Fig. 7 power transmission is classified two start operating performance schematic diagram of cooling system embodiment；
The torque-converters and retarder type of attachment of Fig. 8 power transmission classification second of embodiment of cooling system；
Wherein: 1- expansion tank, 2- the first warming regulating valve, the first water pump of 3-, 4- engine, 5- control valve, 6- heating
Volume, 7- gearbox, 7-1 torque-converters, 7-2 retarder, 8- retarder heat exchanger, 9- torque-converters heat exchanger, the second water of 10-
Pump, 11- Water pump clutch, 12- temperature sense controller, 13- the second warming regulating valve, 14- fan clutch, 15 fans, 16-
Radiator, 17- proportioning valve.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
The application principle of the utility model is explained in detail with reference to the accompanying drawing.
The power transmission for engineering machinery as shown in figures 1-8 is classified cooling system, the structure including following main body:
Cooling unit, including first order cooling unit and second level cooling unit；The first order cooling unit, is matched
It is set to and absorbs heat from engine 4 and distribute；The second level cooling unit is configured as absorbing heat from gearbox 7
It measures and is distributing；The first order cooling unit is connected with second level cooling unit by bindiny mechanism, the company
Connection mechanism is configured as the coolant liquid after absorbing the first cooling unit heat being selectively delivered in the second cooling unit.
Coolant liquid control unit is configured as being changed cold according to the height for going out liquid temperature of the coolant liquid after absorption heat
But flow direction of the liquid in cooling unit.
It further include chilled(cooling) water supply (CWS) unit and heat-sink unit, the heat-sink unit is configured as being connected with cooling unit and incite somebody to action
The device that the heat absorbed distributes.
Wherein, the chilled(cooling) water supply (CWS) unit is expansion tank 1, and the water level of system is arranged in the expansion tank 1
Highest point, including water main inlet port 1b, further include respectively by interface 1a, 1c and 1d respectively with heat-sink unit, the first cooling unit
System being connected to the second cooling unit, cooling water being provided, the diameter of the above-mentioned pipeline being connected with three units is much smaller than system
In the diameters of other pipelines play the role of protection system for the gas in removal system.
The heat-sink unit includes radiator 16 and is used for 16 cooling fan 15 of radiator, and the fan 15 passes through
Fan clutch 14 is connected with engine 4.
In order to guarantee cooling effect, while ensuring that the heat for making full use of engine 4 and gearbox 7 to be distributed makes its work
Make at a suitable temperature, warming regulating valuve unit and pump unit to be provided in the cooling unit, the warming is adjusted
Valve cell includes an entrance and two outlets, and the high low adjustment liquid for going out liquid temperature according to the coolant liquid after absorption heat is logical
Road；When liquid temperature is greater than given threshold out, the fluid path is connected with radiator 16, scattered into carrying out in radiator 16
Temperature is cooling；When liquid temperature is less than given threshold out, the fluid path is recycled in cooling unit by water pump mechanism and is carried out
Recycling.While the priority of cooling is adjusted by the threshold size that temperature control valve (TCV) is set, it is described in the utility model
First order cooling unit temperature-sensitive regulating valve setting threshold value be greater than second level cooling unit temperature-sensitive regulating valve set threshold
Value, gearbox 7 are cooled down prior to engine 4.
Specific implementation process is, includes the first warming regulating valve 2 and the first water pump in the first order cooling unit
3, the two is built in engine 4, and the entrance 2b of the first warming regulating valve 2 is connected with the outlet 4b of engine 4, is gone out
Mouth 2c is connected with the lower end interface 4b of radiator 16, and outlet 2a is connected by the first water pump 3 with the interface 4a of engine 4.It is cold
But during, the flow direction of coolant liquid is that 3 water outlet of the first water pump flows out to 4a mouthfuls of engine, into engine 4 inside carry out it is cold
But, 2b mouthfuls of the first warming regulating valve is flowed out to from 4b mouthfuls of engine, if the temperature of coolant liquid is adjusted less than the first warming at this time
The threshold temperature T01 of valve 2, the b mouth of the first warming regulating valve 2 are connected with a mouthfuls, flow back into 3 water inlet of the first water pump；If at this time
The temperature of coolant liquid is greater than the threshold temperature T01 of the first warming regulating valve 2, and the b mouth of the first warming regulating valve 2 is connected with c mouthfuls, flows
Enter into radiator 16 and radiates.
Include the second warming regulating valve 13 and the second water pump 10 in the second level cooling unit, further includes heat exchanger
Unit, the entrance 13b of the second warming regulating valve 13 are connected with the outlet 8b of heat exchanger unit, export 13c and dissipate
The lower end interface 4d of hot device 16 is connected, and outlet 4a is connected by the second water pump 10 with the entrance 9a of heat exchanger unit.
The piping connection of the second level cooling unit includes following according to the structure of heat exchanger unit and gearbox 7
Two kinds of specific connection types.
It include that gearbox 7 includes torque-converters 7-1 and retarder 7-2 described in the first embodiment as shown in Figure 7, it is corresponding
The heat exchanger unit include torque-converters heat exchanger 9 and retarder heat exchanger 8；The heat exchanger unit packet
Include the oil circuit access being connected with gearbox 7 and the cooling water path being connected with second level cooling unit.In the oil circuit access,
The upper end interface 9c of the torque-converters heat exchanger 9 is connected with the oil circuit entrance 7-1a of torque-converters, and the retarder heat is handed over
The lower end interface 8d of parallel operation 8 is connected with the oil circuit of retarder outlet 7-2d；The upper end interface 8c of the retarder heat exchanger 8
It is connected with the oil circuit entrance 7-2c of retarder, the lower end interface 8d of the retarder heat exchanger 8 and the oil circuit of retarder go out
Mouth 7-2d is connected.In the water route access, the cooling water is flowed out from the outlet end of the second water pump 10, passes sequentially through bending moment
End interface 8a, lower termination on the water route of end interface 9a, lower end interface 9b, retarder heat exchanger 8 on the water route of device heat exchanger 9
Mouth 8b, finally accesses the entrance 13b of the second warming regulating valve 13.
During as shown in Figure 8 second is implemented, the heat exchanger unit only includes a heat exchanger, the change
The oil circuit outlet of torque-converters 7-1 is connected with the oil circuit entrance of retarder 7-2 in fast case 7, the oil circuit entrance of the torque-converters 7-1
It is connected with the outlet of the upper end oil circuit of heat exchanger, the oil circuit outlet of the retarder 7-2 and the upper end oil circuit of heat exchanger enter
Mouth is connected.
It is preferred using the first reality as described in Figure 7 in order to reach preferably classification cooling effect in the utility model
Apply example.
The bindiny mechanism is arranged between engine 4 and the second water pump 10, and two kinds of realities are used in the utility model
Applying method controls the flowing of the coolant liquid between first order cooling unit and second level cooling unit.Including using as shown in Figure 1
Water pump clutch 11, the Water pump clutch 11 by control engine 4 and the second water pump 10 between signal on-off
Control the operating of the second water pump 10.The on-off of the Water pump clutch 11 described in the temperature sensor 12 by controlling
, the temperature sensor 12 is used to detect the temperature for the cooling water that second level cooling unit absorbs after heat, the water
Pump clutch 11 is connected with temperature sensor 12, the temperature sense controller as threshold value T02 of the temperature T2 of detection lower than setting
12 issue shutoff signal, and the second water pump 10 of cutting of Water pump clutch 11 is connected by power with engine 4, so that the second water pump 10 stops
It only operates, reaches energy-efficient effect.
Working cycle process under start operating performance as shown in Figures 2 and 3, engine 4 are in idling work state, need
It is rapidly heated；Gearbox 7 is also required to be rapidly heated.At this point, coolant liquid is in the shape circulated in first order cooling system
State, cooling water enable engine 4 to be rapidly heated without radiator 16.In the second level cooling system, coolant liquid
Flow direction be 10 water outlet of the second water pump flow to 9a mouthfuls of torque-converters heat exchanger, 9b mouthfuls of torque-converters heat exchanger flow out to retarder
8a mouthfuls of heat exchanger, 8b mouthfuls of retarder heat exchanger flow out to b mouthfuls of the second warming regulating valve, and the temperature of coolant liquid is less than at this time
The threshold temperature T of the setting of two warming regulating valves 1302, the b mouth of the second warming regulating valve 13 is connected with a mouthfuls, flow back into the second water
10 water inlets are pumped, coolant liquid realizes being rapidly heated for speed changer 7 without radiator 16.
The working cycle process under displacement operating condition as shown in fig. 4 and fig. 2, engine 4 are in power output working condition,
The heat dissipation capacity needed is Q1；The work of gearbox 7 generates heat Q in bending moment operating condition, torque-converters 7-12, retarder 7-2 do not work, produces
Heat amount is 0.At this point, the temperature of the first warming regulating valve 2 is greater than the threshold temperature T of setting in first order cooling system01, even
The logical access between radiator 16 flow back into 3 water inlet of the first water pump by 16c mouthfuls of radiator after cooling, and carries out
Repeat cooling cycle.
In the cooling system of the second level, the oil circuit access flows to torque-converters heat exchanger 9d by torque-converters 7-1b mouthfuls
Mouthful, cool down after with coolant liquid heat exchange occurs for 9 inside of torque-converters heat exchanger, then flowed back to by 9b mouthfuls of torque-converters heat exchanger
7-1a mouthfuls of torque-converters, retarder 7-2 inner fluid flows to 8d mouthfuls of retarder heat exchanger by 7-2d mouthfuls, then is handed over by retarder heat
8c mouthfuls of parallel operation flow back to retarder 7-2.Coolant liquid, which specifically flows to, flows to torque-converters heat exchanger 9a for 10 water outlet of the second water pump
Mouthful, 9b mouthfuls of torque-converters heat exchanger flow out to 8b mouthfuls of retarder heat exchanger, and 8b mouthfuls of retarder heat exchanger flow out to the second temperature
Regulating valve b mouthfuls of sense, the temperature of coolant liquid is greater than the given threshold T of the second warming regulating valve 13 at this time02, the second warming regulating valve 13
B mouth be connected with c mouthfuls, flow to 16d mouthfuls of radiator, after cooling, by 16a mouthfuls of radiator flow back into the second water pump 10 into
The mouth of a river.Temperature sense controller 12 detects 8b mouthfuls of the retarder heat exchanger coolings flowed out between the second warming regulating valve b
Liquid temperature is higher than T02, adjusting Water pump clutch 11 is linkage status, so that 10 revolving speed of water pump is equal to engine speed, accelerates cooling
The flow velocity of liquid enhances heat dissipation effect.In the cooling system of the second level, fan clutch 14 goes out wind-warm syndrome by detection radiator 16
Degree can make the connection of fan 15 be connected by power with engine 4, so that fan 15 be made to run, the heat dissipation of strong radiator 16 is imitated
Fruit.The heat dissipation capacity of radiator 16 is Q=Q at this time1+Q2。
Such as the working cycle process under Fig. 5 and slow operating condition shown in Fig. 2, engine 4 is in the work towed by gearbox
Make state, stop fuel oil injection, the heat dissipation capacity needed is 0；The work of gearbox 7 generates heat 0 in slow operating condition, torque-converters 7-1,
Retarder 7-2 work, generation heat are Q3.At this point, in first order cooling system, the b mouth and a mouthfuls of phases of the first warming regulating valve 2
Even, it is flow back into 3 water inlet of the first water pump, coolant liquid avoids engine 4 by 16 temperature fluctuation of radiator without radiator 16
Influence.
In the cooling system of the second level, torque-converters 7-1 inner fluid flows to 9d mouthfuls of torque-converters heat exchanger by 7-1b mouthfuls, then leads to
It crosses 9b mouthfuls of torque-converters heat exchanger and flows back to 7-1a mouthfuls of torque-converters.Retarder 7-2 inner fluid flows to retarder heat by 7-2d mouthfuls and hands over
8d mouthfuls of parallel operation, cool down after with coolant liquid heat exchange occurs for 8 inside of retarder heat exchanger, then pass through retarder heat exchanger 8c
Mouth flows back to retarder 7-2.In the cooling system of the second level, the flow direction of coolant liquid is that 10 water outlet of the second water pump flows to the friendship of torque-converters heat
9a mouthfuls of parallel operation, 9b mouthfuls of torque-converters heat exchanger flow out to 8a mouthfuls of retarder heat exchanger, and 8b mouthfuls of retarder heat exchanger flow out to
Second b mouthfuls of warming regulating valve, the temperature of coolant liquid is greater than the given threshold T of the second warming regulating valve 13 at this time02, the second warming tune
The b mouth of section valve 13 is connected with c mouthfuls, flows to 16d mouthfuls of radiator, after cooling, flow back into the second water by 16a mouthfuls of radiator
Pump 10 water inlets.Temperature sense controller 12 detects 8b mouthfuls of retarder heat exchanger and flows out between the second warming regulating valve b
Coolant temperature be higher than T02, adjusting Water pump clutch 11 is that linkage status adds so that 10 revolving speed of water pump is equal to engine speed
The flow velocity of fast coolant liquid, enhances heat dissipation effect.In the cooling system of the second level, fan clutch 14 is gone out by detection radiator 16
Air temperature can make the connection of fan 15 be connected by power with engine 4, so that fan 15 be made to run, strong radiator 16 it is scattered
Thermal effect.The heat dissipation capacity Q=Q3 of radiator 16 at this time.
In order to guarantee to be precisely controlled to cooling effect, the control mechanism can be used second as shown in FIG. 6
Embodiment controls to adjust the coolant liquid in pipeline using proportioning valve 17.
First order cooling unit described in the utility model further includes the control valve 5 being connected with 3 outlet end of the first water pump
With heating volume 6, the heating volume 6 is connected with radiator 16, and heat caused by the engine 4 made full use of is to cushion equipotential
It sets and is heated, i.e., it is energy saving, and improve cooling cooling effect
It is described by the above it is found that the fan 15, the first water pump 3 and the second water pump 10 are all connected with engine 4
Engine 4 be their powered rotation.
Cooling system is classified by the above-described power transmission for engineering machinery to be applied in engineering machinery, it is made
A kind of standby articulated truck, in the articulated truck, the power output of gearbox 7 is for driving vehicle bridge, wheel
It is equipped in vehicle bridge, carrying is transmitted between ground and vehicle bridge.Transmission shaft is for transmitting torque and revolving speed.
Under start operating performance, gearbox 7 is exported without torque, and wheel is stationary state, and cooling system ensures that system quickly rises
Temperature.
Under bending moment operating condition, the torque and revolving speed that gearbox 7 exports pass through transmission shaft, vehicle bridge, are transmitted to wheel, so that vehicle
Wheel rotation provides driving force for articulated truck, and cooling system provides cooling.
Under operating condition of walking or drive slowly, the reactive torque that gearbox 7 exports passes through transmission shaft, vehicle bridge, is transmitted to wheel, hinders wheel
Movement, provide jogging and brake force for articulated truck, cooling system provides cooling.
Claims (10)
1. a kind of power transmission for engineering machinery is classified cooling system characterized by comprising
Cooling unit, including first order cooling unit and second level cooling unit；
The first order cooling unit is configured as absorbing heat from engine (4) and distribute；
The second level cooling unit is configured as absorbing heat from gearbox (7) and distribute；
Coolant liquid control unit is configured as changing coolant liquid according to the height for going out liquid temperature of the coolant liquid after absorption heat
The priority of the cooling of flow direction and gearbox (7) and engine (4) in cooling unit；
It further include chilled(cooling) water supply (CWS) unit and heat-sink unit, the heat-sink unit, which is configured as being connected with cooling unit, to be inhaled
The device that the heat of receipts distributes.
2. the power transmission according to claim 1 for engineering machinery is classified cooling system, it is characterised in that:
The chilled(cooling) water supply (CWS) unit is expansion tank (1), and the expansion tank (1) passes through interface 1a, 1c and 1d respectively
It is connected respectively with heat-sink unit, the first cooling unit and the second cooling unit, further includes water main inlet port 1b；
The heat-sink unit includes radiator (16) and for radiator (16) cooling fan (15), the fan (15)
It is connected by fan clutch (14) with engine (4), the radiator (16) includes two independent cooling water paths, point
It is not connected with the first cooling unit and the second cooling unit.
3. the power transmission according to claim 1 or 2 for engineering machinery is classified cooling system, it is characterised in that: institute
The cooling unit stated includes warming regulating valuve unit and pump unit, and the warming regulating valuve unit includes an entrance and two
Outlet, according to the high low adjustment fluid path for going out liquid temperature of the coolant liquid after absorption heat；
Fluid path when liquid temperature is greater than given threshold out, between the warming regulating valuve unit connection and radiator (16)
Be connected；When liquid temperature is less than given threshold out, the warming regulating valuve unit is connected in cooling unit by water pump mechanism
Circulating liquid access；
The threshold value of the temperature-sensitive regulating valve setting of the first order cooling unit is greater than the temperature-sensitive regulating valve of second level cooling unit
The threshold value of setting, gearbox (7) are cooled down prior to engine (4).
4. the power transmission according to claim 3 for engineering machinery is classified cooling system, it is characterised in that: described
First order cooling unit includes the first warming regulating valve (2) and the first water pump (3), and first warming regulating valve (2) enter
Mouth 2b is connected with the outlet 4b of engine (4), and outlet 2c is connected with the lower end interface 4b of radiator (16), and outlet 2a passes through
First water pump (3) is connected with the interface 4a of engine (4).
5. the power transmission according to claim 3 for engineering machinery is classified cooling system, it is characterised in that: described
Second level cooling unit includes the second warming regulating valve (13) and the second water pump (10), further includes heat exchanger unit, described
The entrance 13b of second warming regulating valve (13) is connected with the outlet 8b of heat exchanger unit, outlet 13c and radiator (16)
Lower end interface 4d is connected, and outlet 4a is connected by the second water pump (10) with the entrance 9a of heat exchanger unit.
6. the power transmission according to claim 5 for engineering machinery is classified cooling system, it is characterised in that: described
It include torque-converters (7-1) and retarder (7-2) including gearbox (7), the corresponding heat exchanger unit includes torque-converters
Heat exchanger (9) and retarder heat exchanger (8)；Alternatively, the torque-converters heat exchanger (9) and retarder heat exchanger
It (8) is the same heat exchanger；
The heat exchanger unit includes the oil circuit access being connected with gearbox (7) and is connected with second level cooling unit cold
But water passage.
7. the power transmission according to claim 6 for engineering machinery is classified cooling system, it is characterised in that: described
In oil circuit access, the upper end interface 9c of the torque-converters heat exchanger (9) is connected with the oil circuit entrance 7-1a of torque-converters, described
The oil circuit outlet 7-2d of lower end interface 8d and retarder of retarder heat exchanger (8) be connected；The retarder heat exchange
The upper end interface 8c of device (8) is connected with the oil circuit entrance 7-2c of retarder；
In the cooling water path, the cooling water is flowed out from the outlet end of the second water pump (10), passes sequentially through torque-converters
End interface 8a, lower end on the water route of end interface 9a, lower end interface 9b, retarder heat exchanger (8) on the water route of heat exchanger (9)
Interface 8b finally accesses the entrance 13b of the second warming regulating valve (13).
8. the power transmission according to claim 5 for engineering machinery is classified cooling system, it is characterised in that: described
Second level cooling unit further includes bindiny mechanism and temperature sensor (12), bindiny mechanism's setting in engine (4) and
Between second water pump (10), the on-off or revolving speed of power between the second water pump (10) and engine (4) are controlled；The connection machine
Structure is connected with temperature sensor (12), after the temperature sensor (12) absorbs heat according to detected second level cooling unit
The temperature of cooling water and the size of given threshold issue on-off signal to bindiny mechanism, the bindiny mechanism include water pump from
Clutch (11) or proportioning valve (17).
9. the power transmission according to claim 1 for engineering machinery is classified cooling system, it is characterised in that: described
First order cooling unit further includes the control valve (5) being connected with the first water pump (3) outlet end and heating volume (6), the heating
Volume (6) is connected with radiator (16).
10. a kind of articulated truck, it is characterised in that: including described in any item for work using according to claim 1-9
The power transmission of journey machinery is classified cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317163.6U CN208486934U (en) | 2018-03-07 | 2018-03-07 | Power transmission for engineering machinery is classified cooling system and its articulated truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317163.6U CN208486934U (en) | 2018-03-07 | 2018-03-07 | Power transmission for engineering machinery is classified cooling system and its articulated truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208486934U true CN208486934U (en) | 2019-02-12 |
Family
ID=65254783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820317163.6U Withdrawn - After Issue CN208486934U (en) | 2018-03-07 | 2018-03-07 | Power transmission for engineering machinery is classified cooling system and its articulated truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208486934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331653A (en) * | 2018-03-07 | 2018-07-27 | 徐州徐工矿山机械有限公司 | Power transmission for engineering machinery is classified cooling system and its articulated truck |
-
2018
- 2018-03-07 CN CN201820317163.6U patent/CN208486934U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331653A (en) * | 2018-03-07 | 2018-07-27 | 徐州徐工矿山机械有限公司 | Power transmission for engineering machinery is classified cooling system and its articulated truck |
| CN108331653B (en) * | 2018-03-07 | 2024-01-23 | 徐州徐工矿业机械有限公司 | Power transmission staged cooling system for engineering machinery and hinged dumper thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108331653A (en) | Power transmission for engineering machinery is classified cooling system and its articulated truck | |
| CN104279306B (en) | Hybrid power automobile gearbox unit cooling system and cooling method | |
| CN205399533U (en) | Large -duty loader formula cooling air automatic regulating system that induced drafts | |
| CN109515728B (en) | Aircraft thermal management system and method with auxiliary hot tank circuit | |
| CN201090283Y (en) | Cooling device for double-circulating watercourse double-fan crane | |
| CN206221051U (en) | A kind of engine split independent cooling system | |
| CN203335218U (en) | Automobile engine intelligent cooling system | |
| EP2935821B1 (en) | Cooling system for a mechanically and hydraulically powered hybrid vehicle | |
| CN106931058A (en) | A kind of cooling system for matching Retarder | |
| CN105697120B (en) | A kind of cooling flow match control method based on engine intelligent cooling system | |
| CN104533592A (en) | Engine cooling system control method for passenger car | |
| CN206017679U (en) | A kind of transmission oil temperature control system | |
| CN206221102U (en) | Make the device of diesel engine for combusting low-grade diesel under low temperature environment | |
| CN109723532A (en) | An intelligent thermal control system for engineering vehicles based on dual-cycle cooling circuits | |
| CN208486934U (en) | Power transmission for engineering machinery is classified cooling system and its articulated truck | |
| CN105257385A (en) | Improved cooling system structure with double-expansion water kettle | |
| CN106286790B (en) | A kind of heat dissipating method of combined radiating device for wind-power electricity generation reduction gear box | |
| CN206158839U (en) | Automobile engine cooling circulation system of temperature saver is put to outband | |
| CN207905911U (en) | Articulated truck dynamical system intelligent control cooling system | |
| CN101875301A (en) | Crane and controllable radiation system thereof | |
| CN108301911A (en) | Articulated truck dynamical system intelligent control cooling system and its control method | |
| CN207005142U (en) | A kind of cooling system for matching Retarder | |
| CN211082036U (en) | Pilot-controlled hydraulic retarder cooling system for commercial vehicle | |
| CN105179062A (en) | Improved structure of double-circulation cooling system with double expansion water tanks | |
| CN105201618A (en) | Dual cycle cooling system including auxiliary water pumps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221000 39 Gaoxin Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee after: XUZHOU XCMG MINING MACHINERY Co.,Ltd. Address before: 221000 39 Gaoxin Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee before: XUZHOU XCMG MINING MACHINERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190212 Effective date of abandoning: 20240123 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190212 Effective date of abandoning: 20240123 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |