CN211543246U - Hybrid double-clutch automatic transmission suitable for tractor - Google Patents
Hybrid double-clutch automatic transmission suitable for tractor Download PDFInfo
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- CN211543246U CN211543246U CN202020074438.5U CN202020074438U CN211543246U CN 211543246 U CN211543246 U CN 211543246U CN 202020074438 U CN202020074438 U CN 202020074438U CN 211543246 U CN211543246 U CN 211543246U
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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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
Abstract
A hybrid double-clutch automatic transmission suitable for a tractor comprises a main input shaft, a main output shaft, a power output shaft PTO, a speed reducing motor, a power coupling device, a central transmission part and a driving hub, wherein the main input shaft is connected to a crankshaft of an engine in a transmission manner and used for inputting power, the main output shaft is used for outputting power to the central transmission part, the power output shaft PTO is used for outputting power by a load, and the double-clutch automatic transmission also comprises a double-clutch automatic; the double-clutch automatic transmission comprises a clutch shell in transmission connection with an output shaft of an engine, a clutch C1 for controlling heavy load first gear, medium load first gear and first gear transportation, a clutch C2 for controlling heavy load second gear, light load second gear and second gear transportation, a solid input shaft and a hollow input shaft; and gear selecting and shifting gear sets are arranged between the corresponding sections of the input shaft and the output shaft of the clutch C1 and the clutch C2. The utility model discloses increased three kinds of drive operation modes, optimized the work area of engine, improved the utilization efficiency of energy, can realize the target of the energy-conserving and environmental protection operation of tractor.
Description
Technical Field
The utility model belongs to the technical field of the tractor, a hybrid double clutch automatic gearbox suitable for tractor is related to.
Background
At present, the technology of the automatic transmission is developed very rapidly, particularly, the double-clutch automatic transmission has a very good development trend, the technology of the automatic transmission is mature, the problem of transmission interruption of gear shifting power can be well solved, and the automatic transmission is applied more and more widely in recent years.
The double-clutch automatic transmission applied to the high and medium horsepower tractor comprises a main input shaft used for being connected with a power source, a double clutch in transmission connection with the main input shaft, an intermediate shaft and a main output shaft, wherein the double clutch comprises an input end in coaxial transmission connection with the main input shaft, an odd-numbered gear transmission shaft, an even-numbered gear transmission shaft and a clutch mechanism used for selecting the input end to be in transmission connection with the odd-numbered gear transmission shaft or the even-numbered gear transmission shaft. Odd-even gear transmission shafts and even-even gear transmission shafts are arranged between the corresponding sections of the intermediate shafts, and corresponding odd-even gear sets and corresponding odd-even gear synchronizers are arranged between the odd-even gear transmission shafts and the even-even gear transmission shafts. Because one clutch in the double clutches corresponds to an odd gear and the other clutch corresponds to an even gear, when the vehicle is shifted into one gear, the other clutch and the corresponding next gear are already in a preparation state through the corresponding synchronizer, and the next gear can be immediately engaged as long as the current gear is separated, so that the gear selecting and shifting speed of the double-clutch transmission is very high, and the problem of power transmission interruption can be well solved.
However, although the dual clutch automatic transmission in the prior art can better solve the problem of power transmission interruption, when the dual clutch automatic transmission is used on a tractor driven by a diesel engine, the power of the engine cannot be fully utilized due to the reasons that the tractor is complex in use condition, more in gear requirement, large in pollution emission and the like, and serious energy waste and exhaust emission are caused. The hybrid power system tractor is additionally provided with the motor, so that the working area of the engine can be optimized, the energy utilization rate is improved, and the method is an effective method for realizing energy conservation and environmental protection of the tractor.
SUMMERY OF THE UTILITY MODEL
In view of this, for solving above-mentioned prior art not enough, the utility model aims at providing a hybrid double clutch automatic gearbox suitable for tractor has increased three kinds of drive operation modes through the matching work of hybrid double clutch automatic gearbox mechanical transmission and motor, has optimized the work area of engine, has improved the utilization efficiency of energy, can realize the target of the energy-conserving and environmental protection operation of tractor.
In order to achieve the above object, the utility model adopts the following technical scheme:
a hybrid double-clutch automatic transmission suitable for a tractor comprises a main input shaft, a main output shaft, a power output shaft PTO, a speed reducing motor, a power coupling device, a central transmission part and a driving hub, wherein the main input shaft is connected to a crankshaft of an engine in a transmission manner and used for inputting power, the main output shaft is used for outputting power to the central transmission part, the power output shaft PTO is used for outputting power by a load, and the double-clutch automatic transmission also comprises a double-clutch automatic;
the output end of the engine is coaxially connected with the input end of the double-clutch automatic transmission, two pairs of low-speed PTO gear pair and high-speed PTO gear pair used for operating agricultural implements with different rotating speeds are arranged on the output shaft of the engine, the low-speed PTO gear pair and the high-speed PTO gear pair are coaxially connected with the power output shaft PTO, and the power output shaft PTO is connected with a power output shaft synchronizer positioned between the low-speed PTO gear pair and the high-speed PTO gear pair;
the double-clutch automatic transmission comprises a clutch shell in transmission connection with an output shaft of an engine, a clutch C1 for controlling heavy load first gear, medium load first gear and first gear transportation, a clutch C2 for controlling heavy load second gear, light load second gear and second gear transportation, a solid input shaft and a hollow input shaft; all be equipped with between the corresponding section of clutch C1, clutch C2's input shaft and output shaft and select the gear train of shifting, the correspondence is equipped with hollow shaft driving gear, hollow shaft driven gear on the hollow input shaft, the last gear train of shifting of selecting of hollow input shaft includes that heavy load keeps off the gear pair, well load keeps off the gear pair, transportation and keeps off the gear pair, the last gear train of shifting of selecting of solid input shaft includes that heavy load keeps off the gear pair, well load keeps off the gear pair, transportation two keep off the gear pair.
Furthermore, the heavy-load first-gear pair and the transportation first-gear pair are arranged in pairs, a heavy-load first-gear synchronizer and a transportation first-gear synchronizer which are used for selecting one gear pair to be connected with the output shaft and the other gear pair to continuously keep an empty sleeve are arranged between the heavy-load first-gear pair and the transportation first-gear synchronizer, the transportation first-gear pair and the middle-load first-gear pair are arranged in pairs, a middle-load first-gear synchronizer is arranged between the transportation first-gear pair and the middle-load first-gear pair, the middle-load first-gear pair is connected with the hollow shaft driven gear, the heavy-load first-gear pair is respectively connected with the transmission output shaft driving gear and the transmission output shaft driven gear.
Further, the second gear pair of centre load and the second gear pair of transportation are arranged in pairs and are equipped with the second synchronizer of centre load between the two, the second gear pair of transportation and the second gear pair of heavy load are arranged in pairs and are equipped with the second synchronizer of transportation and heavy load between the two, the second gear pair of heavy load links to each other with gear motor's power coupling device.
Further, the solid input shaft is in a solid shaft form, the hollow input shaft is in a hollow shaft sleeve form coaxially sleeved on the solid input shaft, the clutch C2 is used for controlling the solid input shaft to be connected, and the clutch C1 is used for controlling the hollow input shaft to be connected.
Further, the output end of the speed reducing motor is coaxially connected with the tail end of a solid input shaft of the double-clutch automatic transmission; the speed reducing motor comprises an input shaft, an output shaft synchronously arranged on the same axis and a power coupling device integrated inside.
Furthermore, the power coupling device is a planetary gear type rotating speed coupling system, a sun gear of the power coupling device is connected with a solid input shaft of the double-clutch automatic transmission, an inner gear ring is connected with an output shaft of the speed reducing motor, and a planetary gear is connected with a heavy-load secondary gear pair.
Further, the tractor using the hybrid double clutch automatic transmission has the driving operation modes that: an Electric Vehicle (EV) operation mode, a hybrid operation mode, and an engine operation mode; the pure electric drive operation mode (EV) is as follows: when the hybrid power double-clutch automatic transmission tractor is in light-load operation and the running speed is not high, the motor is used for driving the tractor to run; the hybrid power driving operation mode is as follows: when the tractor works in a heavy-load gear and a medium-load gear and the required power is high, the engine and the motor simultaneously drive the tractor to run; the engine driving operation mode is as follows: when the tractor works in the transport gear and the required power is appropriate, the engine provides the tractor working power and simultaneously provides additional generating power for the motor to charge the battery pack.
The utility model has the advantages that:
the torque transmitted by the engine of the utility model is transmitted to the PTO gear selecting and shifting synchronizer as the load power output of the tractor through the high-speed and low-speed PTO gear pair on one hand through the crankshaft; on the other hand, power is transmitted to a subsequent double-clutch automatic transmission through an output end, the double-clutch automatic transmission outputs the rotating speed which is the same as the gear of the corresponding gear selecting and shifting gear set to a power output shaft PTO through a multi-plate clutch, the corresponding gear selecting and shifting gear set and a synchronizer, then transmits torque to a central transmission part through an output gear pair on the power output shaft PTO, and finally reaches a driving hub of a tractor to drive the tractor to run under load;
use the utility model discloses a tractor of this hybrid double clutch automatic gearbox possess three kinds of drive operation modes, including pure electric drive operation mode (EV), hybrid drive operation mode, engine drive operation mode. The automatic transmission control unit TCU can automatically switch a driving operation mode according to the operation working condition of the tractor; through the matching work of the mechanical transmission and the motor of the hybrid power double-clutch automatic transmission, three driving operation modes are added, the working area of an engine is optimized, the utilization efficiency of energy is improved, and the aims of energy saving and environment-friendly operation of a tractor can be fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a transmission structure of an embodiment of a hybrid dual clutch automatic transmission of the present invention;
FIG. 2 is a schematic diagram of the operation of the hybrid drive mode of operation;
the labels in the figure are: 1. the gear transmission comprises an engine, 2, a low-speed PTO gear pair, 3, a high-speed PTO gear pair, 4, a clutch C2, 5, a clutch C1, 6, a hollow shaft driving gear, 7, a medium-load two-gear pair, 8, a medium-load two-gear synchronizer, 9, a transportation two-gear pair, 10, a transportation two-gear and heavy-load two-gear synchronizer, 11, a heavy-load two-gear pair, 12, a power coupling device, 13, a speed reducing motor, 14, a transmission output shaft driving gear, 15, a driving hub, 16, a central transmission part, 17, a transmission output shaft driven gear, 18, a heavy-load one-gear pair, 19, a heavy-load one-gear and transportation one-gear synchronizer, 20, a transportation one-gear pair, 21, a medium-load one-gear synchronizer, 22, a medium-load one-gear pair, 23, a hollow shaft driven gear, 24, a.
Detailed Description
The following provides specific embodiments, which will further clearly, completely and specifically explain the technical solutions of the present invention. The present embodiment is the best embodiment based on the technical solution of the present invention, but the scope of the present invention is not limited to the following embodiments.
A kind of hybrid double clutch automatic speed variator suitable for tractor, including the main input shaft for power input that the transmission links to the crankshaft of the engine 1, the main output shaft for power output to the central drive part 16, the power take-off shaft PTO24 for the load output power, the gear motor 13, the power coupling device 12, the central drive part 16, drive the hub 15, also include the double clutch automatic speed variator;
the output end of the engine 1 is coaxially connected with the input end of the double-clutch automatic transmission, two pairs of low-speed PTO gear pair 2 and high-speed PTO gear pair 3 used for operating agricultural implements with different rotating speeds are arranged on the output shaft of the engine 1, the low-speed PTO gear pair 2 and the high-speed PTO gear pair 3 are coaxially connected with the power output shaft PTO24, and the power output shaft PTO24 is connected with a power output shaft synchronizer 25 positioned between the low-speed PTO gear pair 2 and the high-speed PTO gear pair 3;
the double-clutch automatic transmission comprises a clutch shell in transmission connection with an output shaft of the engine 1, a clutch C15 for controlling heavy load first gear, medium load first gear and first gear transportation, a clutch C24 for controlling heavy load second gear, light load second gear and second gear transportation, a solid input shaft and a hollow input shaft; as shown in fig. 1, gear selecting and shifting gear sets are arranged between corresponding sections of the input shaft and the output shaft of the clutch C15 and the clutch C24, a hollow shaft driving gear 6 and a hollow shaft driven gear 23 are correspondingly arranged on the hollow input shaft, the gear selecting and shifting gear sets on the hollow input shaft comprise a heavy-load first-gear pair 18, a medium-load first-gear pair 22 and a transportation first-gear pair 20, and the gear selecting and shifting gear sets on the solid input shaft comprise a heavy-load second-gear pair 11, a medium-load second-gear pair 7 and a transportation second-gear pair 9. Furthermore, the gears of the gear selecting and shifting gear set are arranged from big to small according to the transmission in sequence as follows: heavy load first gear, heavy load second gear, medium load first gear, medium load second gear, light load gear, first transport gear and second transport gear; furthermore, the idle gears in the gear selecting and shifting gear set are adjacently arranged in pairs in a one-to-one corresponding relationship according to the set gear selecting and shifting gears; a synchronizer used for selecting one of the pair of the idle gears to be fixedly connected with the shaft and continuously keeping the other idle gear idle is arranged between the two idle gears.
Further, the clutch C15 controls the engagement of the first gear for heavy load, the first gear for medium load and the first gear for transport, and the clutch C24 controls the engagement of the second gear for heavy load, the second gear for light load and the second gear for transport. Furthermore, the double-clutch automatic transmission is two groups of multi-plate clutches which are coaxially arranged together and are arranged in a closed oil cavity filled with hydraulic oil, and the structure has better adjusting capacity and excellent hot melting property and can transmit larger torque.
Further, the heavy-load first-gear pair 18 and the transportation first-gear pair 20 are arranged in pairs, a heavy-load first-gear synchronizer 19 used for selecting one gear pair to be connected with the output shaft and continuously keeping the other gear pair empty and a transportation first-gear synchronizer 19 are arranged between the heavy-load first-gear pair 18 and the transportation first-gear pair 20, the transportation first-gear pair 20 and the medium-load first-gear pair 22 are arranged in pairs, a medium-load first-gear synchronizer 21 is arranged between the transportation first-gear pair 20 and the medium-load first-gear pair 22, the medium-load first-gear pair 22 is connected with the hollow shaft driven gear 23, the heavy-load first-gear pair 18 is respectively connected with the transmission output shaft driving gear 14 and the transmission output shaft driven gear 17, the transmission.
Further, second gear pair 7 of centre load and second gear pair 9 of transportation are arranged in pairs and are equipped with second synchronizer 8 of centre load between the two, second gear pair 9 of transportation and second gear pair 11 of heavy load are arranged in pairs and are equipped with second synchronizer 10 of transportation and heavy load between the two, second gear pair 11 of heavy load links to each other with gear motor 13's power coupling device 12.
Further, the solid input shaft is in a solid shaft form, the hollow input shaft is in a hollow shaft sleeve form coaxially sleeved on the solid input shaft, the clutch C24 is used for controlling the solid input shaft to be connected, and the clutch C15 is used for controlling the hollow input shaft to be connected.
Further, the output end of the speed reducing motor 13 is coaxially connected with the tail end of a solid input shaft of the double-clutch automatic transmission; the speed reducing motor 13 comprises an input shaft, an output shaft synchronously arranged on the same axis, and a power coupling device 12 integrally arranged inside.
Further, the power coupling device 12 is a planetary gear type rotational speed coupling system, a sun gear of the power coupling device is connected with a solid input shaft of the double-clutch automatic transmission, an inner gear ring is connected with an output shaft of the speed reducing motor 13, and a planetary gear is connected with the heavy-load secondary gear pair 11.
Further, the tractor using the hybrid double clutch automatic transmission has the driving operation modes that: an Electric Vehicle (EV) operation mode, a hybrid operation mode, and an engine operation mode; the electronic control unit TCU of the gearbox can automatically switch the driving operation mode according to the operation working condition of the tractor; the pure electric drive operation mode (EV) is as follows: when the hybrid power double-clutch automatic transmission tractor is in light-load operation and the running speed is not high, the motor is used for driving the tractor to run; the hybrid power driving operation mode is as follows: when the tractor works in a heavy-load gear and a medium-load gear and the required power is high, the engine 1 and the motor simultaneously drive the tractor to run; the engine driving operation mode is as follows: when the tractor works in the transport gear and the required power is appropriate, the engine 1 provides the tractor working power and simultaneously provides additional generating power for the motor to charge the battery pack.
The utility model discloses a hybrid double clutch automatic gearbox suitable for tractor, in the actual use method, this tractor still includes the automatic gear shift control system, and the automatic gear shift control system includes automatic transmission control unit TCU, sensor system, signal processing part and actuating mechanism; further, the sensor system is used for a sensor for detecting the rotation speed of PTO24 of the power output shaft and a sensor for detecting the rotation speed of the crankshaft of the engine; the automatic transmission control unit TCU is used for acquiring rotating speed information of a rotating speed sensor and controlling the rotating speed of the power output shaft PTO24 according to the rotating speed information, a signal output end of the rotating speed sensor is connected with a signal input end of the automatic transmission control unit TCU, and the automatic transmission control unit TCU is in control connection with a hydraulic control system of the tractor; the automatic transmission control unit TCU receives the vehicle running state information detected by the sensor system and the intervention information given by the driver to carry out comparison operation, then sends out a control command according to a set rule, and controls the transmission to work through a corresponding execution mechanism; the electronic control unit TCU of the gearbox can automatically switch the driving operation mode according to the operation working condition of the tractor; the sensor system is used for testing the running state of the vehicle, converting the mechanical quantity of the running state information of the vehicle into an electric signal and providing a reference basis for gear shifting opportunity; the actuating mechanism comprises a gear shifting electromagnetic valve and a pressure regulating electromagnetic valve and is used for receiving a control command of the automatic transmission control unit TCU and then carrying out automatic gear switching and oil pressure regulation on the double clutches;
further, the automatic gear shifting control method of the hybrid double-clutch automatic transmission applicable to the tractor comprises the following steps of:
s1: when the tractor load power output shaft PTO24 works, the automatic transmission control unit TCU controls the power output shaft synchronizer 25 to select a proper rotating speed gear by receiving a rotating speed signal of the engine 1 and a rotating speed signal of the PTO, so that the PTO keeps constant rotating speed and outputs stable power;
s2: the automatic gearbox control unit TCU detects a driving operation mode required by the tractor, the sensor system controls the on-off of the clutch C15 and the clutch C24 by detecting the rotating speed of the solid input shaft or the hollow input shaft, and simultaneously controls the on-off of the speed reducing motor 13, and each synchronizer is connected;
s3: the power transmission route is as follows: the engine 1 transmits power to the high-speed PTO gear pair 3 or the low-speed PTO gear pair 2 through the main input shaft, selects a required rotating speed gear through the power output shaft synchronizer 25, and transmits torque to the power output shaft PTO24, so that the power output shaft PTO24 can keep constant rotating speed and output stable power outwards; on the other hand, power is transmitted to the following dual-clutch automatic transmission through the output end, the dual-clutch automatic transmission outputs the same rotating speed as the gear of the corresponding gear selecting and shifting gear set to the power output shaft PTO through the clutch C15, the clutch C24, the corresponding gear selecting and shifting gear set and the synchronizer, then transmits torque to the central transmission part 16 through the output gear pair on the power output shaft PTO, and finally reaches the driving hub 15 of the tractor to drive the tractor to run under load.
Further, the sensor system comprises a rotation speed sensor, a pressure sensor, a temperature sensor and a position sensor, and the sensor system is used for detecting the vehicle speed, the rotation speed of the input shaft and the rotation speed of the output shaft of the transmission, the pressure on the double clutches and the state signals.
When the tractor works, the torque transmission routes of all gears of the double-clutch automatic transmission are similar, and the transmission principles are the same. The following specifically describes states and power transmission routes of various components in a hybrid drive operation mode of a hybrid dual clutch automatic transmission for a tractor:
as shown in fig. 2, hybrid drive operation mode: the automatic gearbox control unit TCU detects that the tractor needs heavy-load gear operation, the sensor system controls the clutch C15 of the hollow input shaft to be jointed by detecting the rotating speed of the hollow input shaft, the heavy-load first-gear and first-gear transportation synchronizer 19 is jointed according to the right side of the figure, meanwhile, the speed reduction motor 13 is started, and the second-gear and heavy-load second-gear transportation synchronizer 10 is jointed according to the right side of the figure. The power transmission route is as follows: on one hand, the torque transmitted by the engine 1 is transmitted to the power output shaft synchronizer 25 through the low-speed PTO gear pair 2 on the engine output shaft, and finally is taken as the load power output of the tractor through the power output shaft PTO 24; on the other hand, the torque transmitted from the engine 1 is transmitted to the clutch C15 of the hollow input shaft through the engine input shaft, and then transmitted to the heavy-duty first-gear pair 18 through the hollow driving gear 6 and the hollow driven gear 23 on the hollow input shaft. At this time, the electric energy is transmitted to the speed reducing motor 13 through the storage battery and the inverter, the driving force is transmitted from the speed reducing motor 13 to the heavy-duty second gear pair 11 through the power coupling device 12, the power is coupled at the driven gear in the heavy-duty first gear pair 18, and then transmitted to the transmission output shaft driving gear 14 through the transmission main output shaft, the power is transmitted to the central transmission part 16 through the transmission output shaft driven gear 17, and finally the power is distributed to the driving hub 15 through the internal gear mechanism of the central transmission part 16, so that the tractor is driven to move forward.
To sum up, the utility model discloses an holistic approximate theory of operation does: the torque transmitted by the engine of the utility model is transmitted to the PTO gear selecting and shifting synchronizer as the load power output of the tractor through the high-speed and low-speed PTO gear pair on one hand through the crankshaft; on the other hand, power is transmitted to a subsequent double-clutch automatic transmission through an output end, the double-clutch automatic transmission outputs the rotating speed which is the same as the gear of the corresponding gear selecting and shifting gear set to a power output shaft PTO through a multi-plate clutch, the corresponding gear selecting and shifting gear set and a synchronizer, then transmits torque to a central transmission part through an output gear pair on the power output shaft PTO, and finally reaches a driving hub of a tractor to drive the tractor to run under load;
in addition, use the utility model discloses a tractor of this hybrid double clutch automatic gearbox possesses three kinds of drive operation modes, including pure electric drive operation mode (EV), hybrid drive operation mode, engine drive operation mode. The automatic transmission control unit TCU can automatically switch a driving operation mode according to the operation working condition of the tractor; through the matching work of the mechanical transmission and the motor of the hybrid power double-clutch automatic transmission, three driving operation modes are added, the working area of an engine is optimized, the utilization efficiency of energy is improved, and the aims of energy saving and environment-friendly operation of a tractor can be fulfilled.
The essential features, the basic principle and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that the present invention can be modified in various ways according to the actual situation without departing from the spirit and scope of the present invention, and these modifications and improvements are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A hybrid double clutch automatic transmission suitable for a tractor comprises a main input shaft, a main output shaft, a power output shaft PTO (24), a speed reducing motor (13), a power coupling device (12), a central transmission part (16) and a driving hub (15), wherein the main input shaft is connected to a crankshaft of an engine (1) in a transmission mode and used for power input, the main output shaft is used for outputting power to the central transmission part (16), the power output shaft PTO (24) is used for outputting power by a load, and the speed reducing motor is characterized in that: the double-clutch automatic transmission also comprises a double-clutch automatic transmission;
the output end of the engine (1) is coaxially connected with the input end of the double-clutch automatic transmission, two pairs of low-speed PTO gear pair (2) and high-speed PTO gear pair (3) used for operating agricultural implements with different rotating speeds are arranged on the output shaft of the engine (1), the low-speed PTO gear pair (2) and the high-speed PTO gear pair (3) are coaxially connected with the power output shaft PTO (24), and the power output shaft PTO (24) is connected with a power output shaft synchronizer (25) positioned between the low-speed PTO gear pair (2) and the high-speed PTO gear pair (3);
the double-clutch automatic transmission comprises a clutch shell in transmission connection with an output shaft of an engine (1), a clutch C1 (5) for controlling a heavy-load first gear, a medium-load first gear and a first-gear transportation, a clutch C2 (4) for controlling a heavy-load second gear, a light-load second gear and a second-gear transportation, a solid input shaft and a hollow input shaft; all be equipped with between the corresponding section of the input shaft of clutch C1 (5), clutch C2 (4) and output shaft and select the gear train of shifting, the correspondence is equipped with hollow shaft driving gear (6), hollow shaft driven gear (23) on the hollow input shaft, the epaxial gear train of shifting of selecting of hollow input includes heavy load first gear pair (18), well load first gear pair (22), transportation first gear pair (20), the epaxial gear train of shifting of selecting of solid input includes heavy load second gear pair (11), well load second gear pair (7), transportation second gear pair (9).
2. A hybrid dual clutch automatic transmission for a tractor as defined in claim 1 wherein: the heavy-load first-gear pair (18) and the transportation first-gear pair (20) are arranged in pairs, a heavy-load first-gear synchronizer and a transportation first-gear synchronizer (19) used for selecting one gear pair to be connected with an output shaft and continuously keeping the empty sleeve are arranged between the heavy-load first-gear pair and the transportation first-gear synchronizer, the transportation first-gear pair (20) and the medium-load first-gear pair (22) are arranged in pairs, a medium-load first-gear synchronizer (21) is arranged between the transportation first-gear pair and the medium-load first-gear pair (22), the medium-load first-gear pair (22) is connected with the hollow shaft driven gear (23), the heavy-load first-gear pair (18) is respectively connected with the transmission output shaft driving gear (14) and the transmission output shaft driven gear (17), the transmission output shaft driving gear (14) and the transmission output.
3. A hybrid dual clutch automatic transmission for a tractor as defined in claim 1 wherein: two gear pair (7) of centre load and transportation two gear pair (9) are arranged in pairs and are equipped with two synchronizers (8) of centre load between the two, two gear pair (9) of transportation and two gear pair (11) of heavy load are arranged in pairs and are equipped with two gears of transportation and two gears of heavy load synchronizer (10) between the two, two gear pair (11) of heavy load link to each other with power coupling device (12) of gear motor (13).
4. A hybrid dual clutch automatic transmission for a tractor as defined in claim 1 wherein: the solid input shaft is in a solid shaft form, the hollow input shaft is in a hollow shaft sleeve form coaxially sleeved on the solid input shaft, the clutch C2 (4) is used for controlling the solid input shaft to be connected, and the clutch C1 (5) is used for controlling the hollow input shaft to be connected.
5. A hybrid dual clutch automatic transmission for a tractor as defined in claim 1 wherein: the output end of the speed reducing motor (13) is coaxially connected with the tail end of a solid input shaft of the double-clutch automatic transmission; the speed reducing motor (13) comprises an input shaft, an output shaft synchronously arranged on the same axis and a power coupling device (12) integrally arranged inside.
6. A hybrid dual clutch automatic transmission for a tractor as defined in claim 5 wherein: the power coupling device (12) is a planetary gear type rotating speed coupling system, a sun gear of the power coupling device is connected with a solid input shaft of the double-clutch automatic transmission, an inner gear ring is connected with an output shaft of a speed reducing motor (13), and a planetary gear is connected with a heavy-load secondary gear pair (11).
7. A hybrid dual clutch automatic transmission for a tractor as defined in claim 1 wherein: the tractor using the hybrid double-clutch automatic transmission has the following driving operation modes: an Electric Vehicle (EV) operation mode, a hybrid operation mode, and an engine operation mode; the pure electric drive operation mode (EV) is as follows: when the hybrid power double-clutch automatic transmission tractor is in light-load operation and the running speed is not high, the motor is used for driving the tractor to run; the hybrid power driving operation mode is as follows: when the tractor works in a heavy-load gear and a medium-load gear and the required power is high, the engine (1) and the motor simultaneously drive the tractor to run; the engine driving operation mode is as follows: when the tractor works in the transport gear and the required power is appropriate, the engine (1) provides the tractor working power and simultaneously provides additional generated power for the motor to charge the battery pack.
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| CN202020074438.5U CN211543246U (en) | 2020-01-14 | 2020-01-14 | Hybrid double-clutch automatic transmission suitable for tractor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112378656A (en) * | 2020-11-06 | 2021-02-19 | 西安交通大学 | Wet-type double clutch coupling performance detects structure |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378656A (en) * | 2020-11-06 | 2021-02-19 | 西安交通大学 | Wet-type double clutch coupling performance detects structure |
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Effective date of registration: 20221013 Address after: No.39 Xiyuan Road, Jianxi District, Luoyang City, Henan Province Patentee after: LUOYANG TRACTOR RESEARCH INSTITUTE Co.,Ltd. Address before: 471000 No. 48, Xiyuan Road, Jianxi District, Henan, Luoyang Patentee before: HENAN University OF SCIENCE AND TECHNOLOGY |