CN114876623A - Diesel engine cooling system - Google Patents
Diesel engine cooling system Download PDFInfo
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- CN114876623A CN114876623A CN202210458825.2A CN202210458825A CN114876623A CN 114876623 A CN114876623 A CN 114876623A CN 202210458825 A CN202210458825 A CN 202210458825A CN 114876623 A CN114876623 A CN 114876623A
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- train
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- 238000001816 cooling Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims description 23
- 239000000498 cooling water Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 12
- 230000002441 reversible effect Effects 0.000 abstract description 7
- 230000017525 heat dissipation Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 206010024796 Logorrhoea Diseases 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 244000037666 field crops Species 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/04—Pump-driving arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/04—Pump-driving arrangements
- F01P5/043—Pump reversing arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/026—Thermostatic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
- F01P7/081—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a cooling system of a diesel engine, which relates to the technical field of diesel engines and comprises an inner wheel train and an outer wheel train, wherein a first outer wheel of the outer wheel train is coaxially connected with a first inner wheel of the inner wheel train, and the first outer wheel is used for driving a cooling fan of the diesel engine to rotate; the cooling fan further comprises a first clutch mechanism for driving the first outer wheel to be in clutch with the first inner wheel, and the first clutch mechanism, the outer gear train and the inner gear train are configured to be capable of controlling the cooling fan to rotate forwards or backwards. In the invention, the first outer wheel of the outer wheel train of the first clutch mechanism is clutched with the first inner wheel of the inner wheel train, so that the heat radiation fan is respectively driven by the inner wheel train or the outer wheel train to realize the forward rotation or the reverse rotation of the heat radiation fan, the heat radiation fan blows air to the water tank radiator of the diesel engine when in forward rotation, and the heat radiation fan sucks air to the water tank radiator of the diesel engine when in reverse rotation, thereby sucking away attachments on the water tank radiator and improving the heat exchange efficiency of the water tank.
Description
Technical Field
The invention relates to the technical field of diesel engines, in particular to a cooling system of a diesel engine.
Background
When the non-road harvesting machine works in the field, due to the particularity of the working environment, the crushed field crops are attached to a water tank radiator of the diesel engine along with the suction force of the fan, so that the water tank is blocked, the heat exchange efficiency of the water tank is reduced, the high temperature of the diesel engine is caused, the water temperature of the diesel engine is caused to boil, and the conditions of diesel engine failure and incapability of normal work of the whole vehicle are easily caused.
In the prior art, it is common to use a method of periodically and manually cleaning attachments on a radiator of a water tank of a diesel engine, and also use a mechanical cleaning method, for example: 1. the fan with hydraulic or electromagnetic steering function has complex structure, more accessories, high cost and poor working reliability, and can not realize high-speed reversing without stopping; 2. the structure that the lever mechanism is adopted to control back flushing is complex, light-weight arrangement of the diesel engine is not facilitated, working reliability cannot be guaranteed, high-speed reversing without stopping cannot be realized, and the working intensity of workers is high during working; 3. the existing system adopting an electromagnetic clutch structure has limited transmission power, cannot meet the requirement of a large fan, and has high working noise, quick belt abrasion and low reliability; 4. mechanical control or on-off control is adopted, the automation and intelligence degree is low, and the working condition of the system cannot be accurately controlled.
Disclosure of Invention
The invention aims to provide a cooling system of a diesel engine, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: a cooling system of a diesel engine comprises an inner wheel train and an outer wheel train, wherein a first outer wheel of the outer wheel train is coaxially connected with a first inner wheel of the inner wheel train, and the first outer wheel is used for driving a cooling fan of the diesel engine to rotate; the cooling fan further comprises a first clutch mechanism for driving the first outer wheel to be in clutch with the first inner wheel, and the first clutch mechanism, the outer gear train and the inner gear train are configured to be capable of controlling the cooling fan to rotate forwards or backwards.
The inner side wheel train further comprises a driving wheel, a second inner wheel, a double-sided poly-wedge belt and a first tensioning wheel, the driving wheel is arranged on a crankshaft of the diesel engine, the inner side of the double-sided poly-wedge belt is sleeved on the driving wheel and the first inner wheel, the outer side of the double-sided poly-wedge belt is sleeved on the second inner wheel, the first tensioning wheel is used for tensioning the double-sided poly-wedge belt, and the first inner wheel is used for driving a heat dissipation water pump of the diesel engine to operate; the outer wheel train further comprises a second outer wheel and a transmission assembly, the second outer wheel is coaxially connected with the second inner wheel, and the transmission assembly is in transmission connection with the second outer wheel and the first outer wheel; the second clutch mechanism drives the second outer wheel to be in clutch with the second inner wheel; when only the first clutch mechanism is attracted, the first inner wheel drives the cooling fan to rotate through the first outer wheel to blow air to the water tank radiator of the diesel engine; when only the second clutch mechanism is actuated, the outer wheel train is driven by the second inner wheel to enable the radiating fan to reversely rotate to suck air towards a radiator of a water tank of the diesel engine.
Further, the transmission assembly comprises a belt and a second tensioning wheel, the belt is sleeved on the first outer wheel and the second outer wheel, and the second tensioning wheel is used for tensioning the belt.
Further, the belt is a V-shaped single wedge belt.
Further, the first tensioning wheel is sleeved on the inner side or the outer side of the double-sided V-ribbed belt.
Furthermore, the generator is driven by the inner wheel train.
Further, a rotating shaft of the generator is fixedly connected with the first tensioning wheel coaxially, and the generator is movably arranged relative to the first inner wheel so that the first tensioning wheel can tension the double-sided V-ribbed belt.
Furthermore, the double-sided V-ribbed belt comprises an annular middle belt body, and a plurality of V-ribbed edges are arranged on the inner side and the outer side of the middle belt body in a staggered mode.
Further, the first clutch mechanism is a first electromagnetic clutch.
The temperature sensor is used for detecting the temperature of a water tank of the diesel engine, and when the temperature of the water tank received by the ECU module is smaller than a preset value, the ECU module controls the first clutch mechanism to be closed and the second clutch mechanism to be disconnected; when the water tank temperature received by the ECU module is not less than the preset value, the ECU module controls the first clutch mechanism to be disconnected and the second clutch mechanism to be sucked.
In the technical scheme, according to the diesel engine cooling system provided by the invention, the first outer wheel of the outer wheel train of the first clutch mechanism is in clutch connection with the first inner wheel of the inner wheel train, so that the cooling fan is driven by the inner wheel train or the outer wheel train respectively to realize forward rotation or reverse rotation of the cooling fan, the cooling fan blows air to the water tank radiator of the diesel engine when rotating forwards, and the cooling fan sucks air to the water tank radiator of the diesel engine when rotating reversely, so that attachments on the water tank radiator are sucked away, and the heat exchange efficiency of the water tank is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIGS. 1-2 are schematic structural diagrams provided in accordance with embodiments of the present invention;
FIG. 3 is a schematic diagram of a partial structure provided in an embodiment of the present invention;
figures 4-5 are schematic structural views of a first outer wheel provided in accordance with another embodiment of the present invention;
FIG. 6 is a cross-sectional view of the structure of FIG. 5 taken along line A-A in accordance with an embodiment of the present invention;
figures 7 to 8 are schematic structural views of a second outer wheel according to a further embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a driving member according to an embodiment of the present invention;
fig. 10-11 are schematic structural diagrams of an ECU module according to an embodiment of the present invention.
Description of reference numerals:
1. an inner wheel train; 1.1, a first inner wheel; 1.2, driving wheels; 1.3, a second inner wheel; 1.4, double-sided V-ribbed belts; 1.5, a first tensioning wheel; 2. an outer wheel train; 2.1, a first outer wheel; 2.11, a rotating part; 2.12, a belt wheel; 2.13, a clamping structure; 2.131, a first clamping part; 2.132, a second clamping part; 2.2, a second outer wheel; 2.21, rotating the disc; 2.22, rotating the toothed roller; 2.23, a driving piece; 2.231, a first cone pulley; 2.232 and a second cone pulley; 2.233, hydraulic cylinders; 2.24, connecting rod; 2.25, an elastic unit; 2.3, a transmission component; 2.31, a belt; 2.32, a second tensioning wheel; 3. a heat radiation fan; 4. a heat-dissipating water pump; 5. a first clutch mechanism; 5.1, armature iron; 6. a second clutch mechanism; 7. a generator; 8. an ECU module.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1-11, a cooling system for a diesel engine according to an embodiment of the present invention includes an inner wheel train 1 and an outer wheel train 2, wherein a first outer wheel 2.1 of the outer wheel train 2 is coaxially connected to a first inner wheel 1.1 of the inner wheel train 1, and the first outer wheel 2.1 is used for driving a cooling fan 3 of the diesel engine to rotate; the radiator fan further comprises a first clutch mechanism 5 for driving the first outer wheel 2.1 to be in clutch with the first inner wheel 1.1, and the first clutch mechanism 5, the outer gear train 2 and the inner gear train 1 are configured to control the radiator fan 3 to rotate forwards or backwards.
The invention provides a diesel engine cooling system, wherein an inner gear train 1 receives forward rotation drive, an outer gear train 2 receives reverse rotation drive, when the forward rotation and the reverse rotation are relatively speaking, when a first clutch mechanism 5 enables a first inner wheel 1.1 and a first outer wheel 2.1 to be attracted, a heat radiation fan 3 rotates forward, and when the first clutch mechanism 5 enables the first inner wheel 1.1 and the first outer wheel 2.1 to be detached from the attraction, the heat radiation fan 3 rotates reversely. First clutch mechanism 5 the first foreign steamer 2.1 of outside train 2 and the separation and reunion of the first interior wheel 1.1 of inboard train 1 to make radiator fan 3 accept inboard train 1 drive or outside train 2 drive respectively in order to realize radiator fan 3 corotation or reversal, the radiator fan 3 is blown to the water tank radiator of diesel engine when corotation, the radiator fan 3 is induced drafted to the water tank radiator of diesel engine when reversing, thereby inhale the attachment away on the water tank radiator, improve the heat exchange efficiency of water tank.
As a preferable technical solution of this embodiment, the inner wheel train 1 further includes a driving wheel 1.2, a second inner wheel 1.3, a double-sided poly-wedge belt 1.4, and a first tension wheel 1.5, the driving wheel 1.2 is disposed on a crankshaft of the diesel engine, an inner side of the double-sided poly-wedge belt 1.4 is sleeved on the driving wheel 1.2 and the first inner wheel 1.1, an outer side of the double-sided poly-wedge belt 1.4 is sleeved on the second inner wheel 1.3, the first tension wheel 1.5 is used for tensioning the double-sided poly-wedge belt 1.4, the first tension wheel 1.5 is sleeved on the inner side or the outer side of the double-sided poly-wedge belt 1.4, and the first inner wheel 1.1 is used for driving the heat-dissipating water pump 4 of the diesel engine to operate; the outer wheel train 2 also comprises a second outer wheel 2.2 and a transmission component 2.3, the second outer wheel 2.2 is coaxially connected with the second inner wheel 1.3, and the transmission component 2.3 is in transmission connection with the second outer wheel 2.2 and the first outer wheel 2.1; the clutch mechanism also comprises a second clutch mechanism 6 for driving the second outer wheel 2.2 to be clutched with the second inner wheel 1.3; when only the first clutch mechanism 5 is absorbed, the first inner wheel 1.1 drives the cooling fan 3 to rotate through the first outer wheel 2.1 to blow air to the water tank radiator of the diesel engine; when only the second clutch mechanism 6 is actuated, the outer wheel train 2 is driven by the second inner wheel 1.3 to make the heat radiation fan 3 reversely suck air to a radiator of a water tank of the diesel engine.
In this technical scheme, inboard train 1 compares and is close to the diesel engine body more in outside train 2, and the drive of the bent axle of diesel engine is accepted through drive wheel 1.2 to inboard train 1, then through two-sided polywedge bet 1.4 transmission to first interior wheel 1.1, and first interior wheel 1.1 drive diesel engine's heat dissipation water pump 4 operation, dispels the heat for the diesel engine. When the first clutch mechanism 5 is actuated, namely the first clutch mechanism 5 actuates the first inner wheel 1.1 to be actuated with the first outer wheel 2.1, and the second clutch mechanism 6 is disengaged from the actuation, the inner wheel train 1 drives the first outer wheel 2.1 to rotate through the first inner wheel 1.1 while driving the heat dissipation water pump 4 to operate, and the first outer wheel 2.1 drives the heat dissipation fan 3 to rotate forward to blow air to the water tank radiator, thereby accelerating the heat exchange between the water tank radiator and the air. The process that radiator fan 3 bloied to the water tank radiator lasts longer time after, can lead to the garrulous end of crop to be attached to the water tank radiator of diesel engine gradually, when the garrulous end of crop on the water tank radiator accumulated a certain amount, though radiator fan 3 bloies to the water tank radiator, still can lead to the heat of water tank radiator in can't giving off the air. Therefore, at this time, the first clutch mechanism 5 needs to be disengaged from the first clutch mechanism, the transmission between the first outer wheel 2.1 and the first inner wheel 1.1 is disconnected, after the cooling fan 3 stops rotating under wind resistance (the process needs about 5 seconds approximately), the second clutch mechanism 6 is engaged, the second outer wheel 2.2 and the second inner wheel 1.3 are in transmission, the outer side of the double-sided multi-wedge belt 1.4 is sleeved on the second inner wheel 1.3, so that the rotating direction of the second inner wheel 1.3 is opposite to that of the first inner wheel 1.1, the rotating direction of the second outer wheel 2.2 is opposite to that of the first inner wheel 1.1, the second outer wheel 2.2 drives the first outer wheel 2.1 to rotate through the transmission assembly 2.3, the cooling fan 3 is enabled to suck air to reversely towards the water tank radiator, crop attached to the water tank radiator is crushed, heat exchange efficiency between the water tank radiator and air is promoted, and the diesel engine is enabled to be stopped, The crop dust on the radiator of the water tank is cleaned under the condition that the heat dissipation water pump 4 does not stop. After the crop dust attached to the radiator of the water tank is completely sucked, the second clutch mechanism 6 is separated from the suction and the first clutch mechanism 5 is sucked, so that the cooling fan 3 rotates forwards.
Preferably, the transmission assembly 2.3 includes a belt 2.31 and a second tensioning wheel 2.32, the belt 2.31 is sleeved on the first outer wheel 2.1 and the second outer wheel 2.2, the second tensioning wheel 2.32 is used for tensioning the belt 2.31, and the belt 2.31 is preferably a V-shaped single wedge belt. Preferably, the drive assembly 2.3 is a sprocket chain assembly. Preferably, the transmission assembly 2.3 is a gear set. The transmission does not change the rotation direction of the first outer wheel 2.1 and the second outer wheel 2.2, i.e. the rotation direction of the first outer wheel 2.1 and the second outer wheel 2.2 is identical.
As preferred, two-sided polywedge bet 1.4 is including the annular intermediate band body, and the inside and outside dislocation of intermediate band body is provided with many wedges arris, compares with the both sides wedges arris symmetrical arrangement of traditional intermediate band body, and two-sided polywedge bet 1.4 in this scheme can enough realize two-sided polywedge bet 1.4 two-sided transmission, the effect that prevents to skid, can increase its intensity again, makes two-sided polywedge bet 1.4 difficult fracture, has improved two-sided polywedge bet 1.4's life greatly.
Preferably, the first clutch mechanism 5 is preferably a first electromagnetic clutch; the second clutch mechanism 6 is preferably a second electromagnetic clutch.
As a preferable configuration of the present embodiment, the present invention further includes a generator 7, and the generator 7 generates power by being driven by the inner gear train 1. Furthermore, the rotating shaft of the first generator 7 is fixedly connected with the first tensioning wheel 1.5 in a coaxial mode, the generator 7 is arranged in a moving mode relative to the first inner wheel 1.1, the generator 7 and the first tensioning wheel 1.5 form a whole tensioning mechanism, so that the double-sided multi-wedge belt 1.4 can be tensioned, power can be generated, the inner side wheel train 1 does not need to be additionally provided with other tensioning wheels, and the structure of the inner side wheel train 1 is greatly simplified. The generator 7 can provide electric energy for the first electromagnetic clutch and the second electromagnetic clutch, and can also charge a storage battery equipped on the diesel engine.
In another embodiment provided by the present invention, referring to fig. 4 to 6, the first outer wheel 2.1 includes a rotating part 2.11 and a belt pulley 2.12, the belt pulley 2.12 is rotatably connected to the rotating part 2.11, the heat dissipation fan 3 is fixedly installed on the rotating part 2.11, the rotating part 2.11 is coaxially and rotatably connected to the first inner wheel 1.1, the rotating part 2.11 is slidably connected to the armature 5.1 of the first electromagnetic clutch, the sliding direction is the axial direction of the rotating part 2.11, and a clamping structure 2.13 is arranged between the armature 5.1 of the first electromagnetic clutch and the end surface of the belt pulley 2.12; when the first electromagnetic clutch is disconnected (disengaged from actuation), the armature 5.1 of the first electromagnetic clutch slides to approach the belt wheel 2.12 under the elastic force of the return spring of the armature so as to clamp the clamping structure 2.13; when the first electromagnetic clutch is engaged, the engagement structure 2.13 is disengaged.
Preferably, the engaging structure 2.13 includes at least one first engaging portion 2.131 fixedly connected to the armature 5.1 of the first electromagnetic clutch, and at least one second engaging portion 2.132 fixedly connected to the end face of the pulley 2.12, and when the first electromagnetic clutch is disconnected, the first engaging portion 2.131 engages with the second engaging portion 2.132.
In the embodiment, when the first clutch mechanism 5 (first electromagnetic clutch) is engaged, the engaging mechanism is disengaged, the first inner wheel 1.1 drives the cooling fan 3 to rotate forward through the rotating part 2.11 to blow air to the radiator of the water tank, only the rotating part 2.11 in the outer wheel train 2 rotates, and other components including the belt wheel 2.12 do not rotate, so that the transmission power of the inner wheel train 1 can be saved, and the energy consumption of a diesel engine can be saved; when the heat dissipation performance of the water tank radiator is reduced after a large amount of crop debris is attached to the water tank radiator, the first clutch mechanism 5 is disengaged from actuation, the armature 5.1 of the first electromagnetic clutch slides to be close to the belt pulley 2.12 under the elastic force of the return spring of the first electromagnetic clutch so as to enable the clamping structure 2.13 to be clamped, and at the moment, the residual rotational inertia of the heat dissipation fan 3 overcomes wind resistance and drives the originally static outer wheel train 2 to rotate, so that the stop of the heat dissipation fan 3 can be accelerated (the stop can be carried out in about 2 seconds), and the time that the heat dissipation fan 3 does not carry out heat dissipation operation on the water tank radiator is shortened; when the cooling fan 3 stops rotating, the second clutch mechanism 6 is actuated, the second inner wheel 1.3 drives the outer wheel train 2 to rotate through the second outer wheel 2.2, and the belt wheel 2.12 of the first outer wheel 2.1 drives the rotating part 2.11 to rotate, so that the cooling fan 3 is driven to reversely rotate to suck air to the water tank radiator.
In yet another embodiment of the present invention, referring to fig. 7-9, the second external wheel 2.2 comprises a rotating disc 2.21 and a driving member 2.23, when the second clutch mechanism 6 is engaged, the rotating disc 2.21 is driven by the second inner wheel 1.3, a plurality of rotating toothed rollers 2.22 distributed radially are arranged on the rotating disc 2.21 in a sliding manner along the radial direction, specifically, a guide rail is arranged on the rotating disc 2.21 along the radial direction, a connecting rod 2.24 is arranged on the rotating toothed rollers 2.22 in a rotating manner, the connecting rod 2.24 is arranged on the guide rail in a sliding manner, so that rotate fluted roller 2.22 and radially slide along rolling disc 2.21, each rotates fluted roller 2.22 and constitutes an annular wheel, and transmission assembly 2.3 of outside train 2 includes toothed belt and second take-up pulley 2.32, and the toothed belt cover is located on annular wheel and first foreign steamer 2.1, and driving piece 2.23 is used for driving each and rotates fluted roller 2.22 and slide in step in order to adjust the diameter of annular wheel, and second take-up pulley 2.32 can the automatic tensioning toothed belt.
In the above technical solution, the rotating disc 2.21 is driven by the second inner wheel 1.3 to rotate, the driving element 2.23 drives the rotating toothed rollers 2.22 on the rotating disc 2.21 to synchronously slide and adjust the diameter of the annular wheel, the second tension wheel 2.32 automatically tensions the toothed belt, so as to adjust the rotation speed of the first outer wheel 2.1 and the radiator fan 3, and to adjust the accelerator of the diesel engine only according to the requirement of the harvester without actively adjusting the rotation speed of the inner wheel train 1 (the power of the inner wheel train 1 comes from the crankshaft of the diesel engine, the output power of the crankshaft is mainly used for field operation of the harvester, and the accelerator of the diesel engine cannot be adjusted according to the requirement of the radiator fan 3, and the main power output of the inner wheel train 1 is provided for the operation of the radiator water pump 4 and the generator 7, so that the power output from the inner wheel train 1 to the second outer wheel 2.2 cannot be actively adjusted according to the requirement of the reverse rotation speed of the radiator fan 3, the inner wheel train 1 can be generally understood as a constant rotating speed), the diameter of the annular wheel is adjusted through the driving part 2.23, the instantaneous speed of reverse rotation of the heat radiation fan 3 can be increased, the instantaneous suction force of the heat radiation fan 3 is improved, and crop scraps which are tightly attached to a water tank radiator are sucked away.
As a preferable technical solution of this embodiment, the driving element 2.23 includes a plurality of first cone pulleys 2.231, second cone pulleys 2.232, and a driving unit, wherein each first cone pulley 2.231 is connected with each link 2.24 in a one-to-one rotating manner, each second cone pulley 2.232 is simultaneously in rolling contact with the conical surface of each first cone pulley 2.231, the driving unit is configured to drive the second cone pulleys 2.232 to move along the axial direction of the rotating disc 2.21, preferably, the driving unit includes a hydraulic cylinder 2.233, the open end of the hydraulic rod of the hydraulic cylinder 2.233 is fixedly connected with the second cone pulleys 2.232, and the hydraulic rod can drive the second cone pulleys 2.232 to move by stretching; the driving member 2.23 further includes an elastic unit 2.25, the elastic force of the elastic unit 2.25 acts on each rotating toothed roller 2.22 toward the center of the annular wheel, the elastic unit 2.25 is preferably an elastic ring, the elastic ring is sleeved on the annular structure formed by each connecting rod 2.24, and specifically, the elastic ring is a rubber band or an annular spring. When the second cone pulley 2.232 moves closer to the rotating disc 2.21, the second cone pulley 2.232 simultaneously presses each first cone pulley 2.231, so that each first cone pulley 2.231 is radially dispersed, thereby increasing the diameter of the annular wheel composed of the rotating gears, and further increasing the rotating speed of the first outer wheel 2.1; when the second cone pulley 2.232 moves away from the rotating disc 2.21, the elastic force of the elastic unit 2.25 drives the rotating toothed rollers 2.22 to slide and close, thereby reducing the diameter of the annular wheel and further reducing the rotating speed of the first outer wheel 2.1. The driving part 2.23 realizes that the diameter of the annular wheel is adjusted under the condition that the second outer wheel 2.2 does not stop rotating, and the instantaneous rotating speed of the heat radiation fan 3 is improved in the process that the outer wheel train 2 and the heat radiation fan 3 run at high speed.
In still another embodiment provided by the present invention, referring to fig. 10-11, the present invention further includes an ECU module 8 and a temperature sensor, the temperature sensor is used for detecting the temperature of the water tank of the diesel engine, when the temperature of the water tank received by the ECU module 8 is less than a preset value, the ECU module 8 controls the first clutch mechanism 5 to be closed and the second clutch mechanism 6 to be opened; when the water tank temperature received by the ECU module 8 is not less than the preset value, the ECU module 8 controls the first clutch mechanism 5 to be disconnected and the second clutch mechanism 6 to be attracted.
In this embodiment, through the water tank temperature signal of gathering the diesel engine, but the operating condition of the first electromagnetic clutch mechanism of accurate control and electromagnetic clutch mechanism is handled through ECU module 8, and ECU module 8 automatic intelligent control can intelligent clearance heat dissipation water tank go up adnexed crop garrulous end, realizes the radiating accurate control of diesel engine. Further set up parts such as speed sensor to gather signals such as temperature, rotational speed, the service condition of diesel engine, carry out comprehensive treatment through ECU module 8 and judge, can realize the heat dissipation control to the diesel engine more accurately. The specific design process is as follows: confirming the diameter requirement of the cooling fan 3 through a finished automobile thermal balance test, checking the tip speed of the cooling fan 3, adjusting the speed ratio, testing the consumed power of the cooling fan 3 at different rotating speeds during positive and negative rotation, and calculating the matching parameters of the first electromagnetic clutch and the second electromagnetic clutch according to the power; after confirming the structural parameters of key parts, starting the arrangement of gear trains, confirming the wedge number of the double-sided poly-wedge belt 1.4 and the wrap angle of each gear train according to the requirement of minimum driving force, and finishing the structural arrangement by combining the use boundary of the whole machine; through gathering whole car field in-service use operating mode and bench test data, the water tank plug clearance interval requirement, first electromagnetic clutch, second electromagnetic clutch separation time and radiator fan 3 positive and negative rotation stop start time, write control program into in ECU module 8, make ECU module 8 through gathering the temperature in the course of the work, the rotational speed, the operating mode, factor automatic judgement such as time triggers the blowback function, reach the purpose of clearing up the water tank radiator, avoid the emergence of whole car high temperature, can also prolong whole car life, reduce diesel engine fuel consumption.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A diesel engine cooling system, comprising:
an inner wheel train;
the first outer wheel of the outer wheel train is coaxially connected with the first inner wheel of the inner wheel train, and the first outer wheel is used for driving a cooling fan of the diesel engine to rotate;
the cooling fan further comprises a first clutch mechanism for driving the first outer wheel to be in clutch with the first inner wheel, and the first clutch mechanism, the outer gear train and the inner gear train are configured to be capable of controlling the cooling fan to rotate forwards or backwards.
2. The cooling system of claim 1, wherein the inner wheel train further comprises a driving wheel, a second inner wheel, a double-sided poly-v belt and a first tension wheel, the driving wheel is disposed on a crankshaft of the diesel engine, an inner side of the double-sided poly-v belt is sleeved on the driving wheel and the first inner wheel, an outer side of the double-sided poly-v belt is sleeved on the second inner wheel, the first tension wheel is used for tensioning the double-sided poly-v belt, and the first inner wheel is used for driving a cooling water pump of the diesel engine to operate;
the outer wheel train further comprises a second outer wheel and a transmission assembly, the second outer wheel is coaxially connected with the second inner wheel, and the transmission assembly is in transmission connection with the second outer wheel and the first outer wheel;
the second clutch mechanism drives the second outer wheel to be in clutch with the second inner wheel;
when only the first clutch mechanism is attracted, the first inner wheel drives the cooling fan to rotate through the first outer wheel to blow air to the water tank radiator of the diesel engine; when only the second clutch mechanism is actuated, the outer wheel train is driven by the second inner wheel to enable the radiating fan to reversely rotate to suck air towards a radiator of a water tank of the diesel engine.
3. The diesel engine cooling system of claim 2 wherein the transmission assembly includes a belt and a second tension pulley, the belt being disposed around the first outer wheel and the second outer wheel, the second tension pulley being configured to tension the belt.
4. The diesel engine cooling system of claim 3 wherein said belt is a V-belt.
5. The diesel engine cooling system of claim 1, wherein the first tensioning wheel is sleeved on the inner side or the outer side of the double-sided V-ribbed belt.
6. A diesel engine cooling system as claimed in claim 2 further comprising a generator driven by the inner wheel train.
7. The diesel engine cooling system of claim 6 wherein said third generator has a shaft fixedly coupled to a first tensioning wheel, said generator being movably disposed relative to said first inner wheel such that said first tensioning wheel tensions said double-sided v-ribbed belt.
8. The diesel engine cooling system of claim 2, wherein the double-sided V-ribbed belt comprises an annular intermediate belt body, and a plurality of V-ribbed ribs are arranged on the inner side and the outer side of the intermediate belt body in a staggered manner.
9. The cooling system of claim 1, wherein the first clutch mechanism is a first electromagnetic clutch.
10. The cooling system of the diesel engine according to claim 1, further comprising an ECU module and a temperature sensor, wherein the temperature sensor is used for detecting the temperature of the water tank of the diesel engine, and when the temperature of the water tank received by the ECU module is less than a preset value, the ECU module controls the first clutch mechanism to be closed and the second clutch mechanism to be opened; when the water tank temperature received by the ECU module is not less than the preset value, the ECU module controls the first clutch mechanism to be disconnected and the second clutch mechanism to be sucked.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458825.2A CN114876623B (en) | 2022-04-27 | 2022-04-27 | Diesel engine cooling system |
| LU503851A LU503851B1 (en) | 2022-04-27 | 2023-03-03 | Diesel engine cooling system |
| PCT/CN2023/079601 WO2023207334A1 (en) | 2022-04-27 | 2023-03-03 | Diesel engine cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458825.2A CN114876623B (en) | 2022-04-27 | 2022-04-27 | Diesel engine cooling system |
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| Publication Number | Publication Date |
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| CN114876623A true CN114876623A (en) | 2022-08-09 |
| CN114876623B CN114876623B (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210458825.2A Active CN114876623B (en) | 2022-04-27 | 2022-04-27 | Diesel engine cooling system |
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| Country | Link |
|---|---|
| CN (1) | CN114876623B (en) |
| LU (1) | LU503851B1 (en) |
| WO (1) | WO2023207334A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023207334A1 (en) * | 2022-04-27 | 2023-11-02 | 安徽全柴动力股份有限公司 | Diesel engine cooling system |
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- 2022-04-27 CN CN202210458825.2A patent/CN114876623B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114876623B (en) | 2022-12-20 |
| WO2023207334A1 (en) | 2023-11-02 |
| LU503851B1 (en) | 2023-11-06 |
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