CN217994126U - Hybrid transmission system of engineering machinery - Google Patents
Hybrid transmission system of engineering machinery Download PDFInfo
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- CN217994126U CN217994126U CN202221044824.5U CN202221044824U CN217994126U CN 217994126 U CN217994126 U CN 217994126U CN 202221044824 U CN202221044824 U CN 202221044824U CN 217994126 U CN217994126 U CN 217994126U
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Abstract
The utility model discloses an engineering machine tool thoughtlessly moves transmission system, it belongs to engineering machine tool technical field. The gearbox solves the defect that the traditional large or mining land leveler in the prior art is high in cost. The main structure of the power generation system comprises an engine, a generator, an energy storage device, a first motor, a speed reducer, a rear axle and a controller, wherein the engine is connected with the generator, the controller is respectively connected with the generator, the energy storage device, the first motor and the speed reducer, and the rear axle is connected with the first motor and the speed reducer. The utility model discloses mainly used engineering machine tool is last.
Description
Technical Field
The utility model belongs to the technical field of engineering machine tool, specifically speaking especially relates to an engineering machine tool thoughtlessly moves transmission system.
Background
The grader is a typical traction type working machine, a working device is pushed by traction force of the machine walking, and at present, the grader mostly adopts three transmission routes: the hydraulic transmission of an engine, a hydraulic torque converter, a gearbox and a rear axle is realized; secondly, mechanical transmission of an engine, a gearbox and a rear axle is adopted; and thirdly, the hydrostatic drive of an engine, a pump, a motor, a gearbox and a drive axle is adopted. The maximum traction of the land leveler is only determined by the load of rear axle wheels and an adhesion coefficient, and because the load of a front axle of the land leveler generally accounts for about 30% of the weight of the land leveler, the traction of the land leveler is not exerted by about 30%, so that most of the land leveler is provided with a front wheel auxiliary driving hydraulic system on the front axle, modes such as full driving, front wheel independent driving and the like are realized, the traction of the land leveler is improved, the front wheels are independently driven when fine leveling operation conditions are realized, and the rear wheels are prevented from damaging a road surface which is leveled by the road surface.
Under the working conditions of mines and the like, the land leveler can effectively remove scattered materials of a transportation road, leveling road ruts and the like, so that the tire abrasion in the transportation process of the mine car is greatly reduced, the operation resistance is reduced, the transportation speed is increased, the operation efficiency is greatly improved, the use cost is reduced, along with the large-scale transportation of the material mine car, the large-scale trend of the land leveler for effectively leveling the transportation road is obvious, but if a traditional transmission route is adopted by the large-scale or mining land leveler, a large-scale gearbox is needed, the cost of the gearbox is high on the one hand, the professional level of the large-scale gearbox is high on the other hand, the industrial resources are limited, and the supply chain is limited, so that the transmission system of the domestic large-scale or mining land leveler is limited by the large-scale gearbox and the like, and the development is limited.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide an engineering machine tool hybrid transmission system, its simple structure is convenient for realize the rear-guard, drive and operating mode such as front wheel independent drive entirely, and can carry out certain energy recuperation.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model provides an engineering machine tool thoughtlessly moves transmission system, includes engine, generator, energy memory, first motor and speed reducer, rear axle and controller, the engine is connected with the generator, and the controller is connected with generator, energy memory and first motor and speed reducer respectively, and the rear axle is connected with first motor and speed reducer.
Preferably, the hybrid transmission system of the engineering machinery further comprises a third motor and speed reducer, a fourth motor and speed reducer, and the controller is connected with the third motor and speed reducer, the fourth motor and speed reducer respectively.
Preferably, the hybrid transmission system of the engineering machinery further comprises a second motor and a hydraulic system pump, and the controller is connected with the second motor and the hydraulic system pump.
Preferably, a transfer case is arranged between the engine and the generator, and the engine is further connected with the hydraulic system pump through the transfer case.
Preferably, the first motor and the speed reducer comprise a first motor, a first clutch, a second clutch, a first gear, a second gear, a third gear, a fourth gear, an input shaft and a speed reducer output shaft, the output end of the first motor is connected with the input shaft, the first clutch, the second clutch, the first gear and the fourth gear are all installed on the input shaft, the second gear and the third gear are all installed on the speed reducer output shaft, the first gear is in meshing transmission connection with the second gear, the third gear is in meshing transmission connection with the fourth gear, and the speed reducer output shaft is further connected with the rear axle.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the gearbox in the utility model has simple structure, the large-scale or mining land leveler does not need a special gearbox, the problem of limited large-scale or mining gearbox in the industry is solved, and compared with hydrostatic transmission, hydraulic parts such as a high-pressure large-displacement pump and a motor are not needed;
2. the working modes of rear drive, full drive, independent drive of front wheels and the like are convenient to realize;
3. a certain energy recovery can be performed.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 3 is a schematic structural diagram of the first motor and the speed reducer of the present invention.
In the figure: 1. an engine; 2. a generator; 3. an energy storage device; 4. a second motor and a hydraulic system pump; 5. a first motor and a speed reducer; 6. a rear axle; 7. a controller; 8. a third motor and a speed reducer; 9. a fourth motor and a speed reducer; 10. a transfer case; 11. a hydraulic system pump; 501. a first motor; 502. a first clutch; 503. a second clutch; 504. a first gear; 505. a second gear; 506. a third gear; 507. a fourth gear; 508. an input shaft; 509. and a reducer output shaft.
Detailed Description
The present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example 1:
as shown in fig. 1, an engineering machinery hybrid transmission system includes an engine 1, a generator 2, an energy storage device 3, a first motor and speed reducer 5, a rear axle 6, a controller 7, a third motor and speed reducer 8, and a fourth motor and speed reducer 9, where the engine 1 is connected with the generator 2, the controller 7 is connected with the generator 2, the energy storage device 3, the first motor and speed reducer 5, the third motor and speed reducer 8, and the fourth motor and speed reducer 9, respectively, and the rear axle 6 is connected with the first motor and speed reducer 5.
The second motor and hydraulic system pump 4 is used for controlling and providing pressure oil for the land leveler working device, steering and braking, the first motor and speed reducer 5 drives the rear axle 6, and the third motor and speed reducer 8, the fourth motor and speed reducer 9 are arranged on the left front wheel and the right front wheel.
Example 2:
as shown in fig. 1, the hybrid transmission system of the engineering machine further includes a second motor and a hydraulic system pump 4, and the controller 7 is connected to the second motor and the hydraulic system pump 4. The other portions are the same as in example 1.
Example 3:
as shown in FIG. 2, in the hybrid transmission system of the engineering machinery, a transfer case 10 is arranged between an engine 1 and a generator 2, and the engine 1 is further connected with a hydraulic system pump 11 through the transfer case 10. The other portions are the same as in example 1.
Example 4:
as shown in fig. 3, the first motor and speed reducer 5 includes a first motor 501, a first clutch 502, a second clutch 503, a first gear 504, a second gear 505, a third gear 506, a fourth gear 507, an input shaft 508 and a speed reducer output shaft 509, an output end of the first motor 501 is connected with the input shaft 508, the first clutch 502, the second clutch 503, the first gear 504 and the fourth gear 507 are all installed on the input shaft 508, the second gear 505 and the third gear 506 are all installed on the speed reducer output shaft, the first gear 504 is in meshing transmission connection with the second gear 505, the third gear 506 is in meshing transmission connection with the fourth gear 507, and the speed reducer output shaft 509 is further connected with the rear axle 6.
When the first clutch 502 is engaged and the second clutch 503 is disengaged, the output power of the first motor 501 is output to the rear axle 6 through the input shaft 508, the first clutch 502, the fourth gear 507, the third gear 506 and the reducer output shaft 509, so that a large transmission ratio output is formed; when the first clutch 502 is disengaged and the second clutch 503 is engaged, the output power of the first motor 501 is output to the rear axle 6 through the input shaft 508, the second clutch 503, the first gear 504, the second gear 505 and the reducer output shaft 509, and a low transmission ratio output is formed. The other portions are the same as in example 2 or 3.
The utility model discloses a theory of operation does:
in a default working mode, the land leveler is in a rear-wheel-drive driving mode, the controller 7 controls the third motor and the speed reducer 8, the fourth motor and the speed reducer 9 to be in a non-driving torque state, the left front wheel and the right front wheel are in a free wheel state, the engine 1 drives the generator 2 to generate electricity, part of electric energy of the controller 7 drives the second motor and the hydraulic system pump 4 to provide hydraulic oil for the whole machine working device, the steering system and the braking system, and part of electric energy drives the first motor and the speed reducer 5 and the rear axle 6 to realize rear-wheel driveMoving; meanwhile, the speed sensor of the first motor and the speed reducer 5 outputs a rotating speed signal to the controller 7 and calculates the rotating speed n of the vehicle 1 And vehicle speed V 1 Therefore, the coupling and decoupling of the first clutch 502 and the second clutch 503 in the first motor and reducer 5 is controlled according to the vehicle speed and the traction force, and low-speed large torque output or high-speed small torque output is realized. When the controller 7 recognizes that the pressure of the whole braking hydraulic system is higher than the value a, the controller 7 judges the braking state of the whole machine, at the moment, the controller 7 controls the first motor and the speed reducer 5 to be in a power generation mode, the first motor and the speed reducer 5 realize power generation through the back dragging of the rear axle 6, and the generated electric energy is stored in the energy storage device 3; in the driving mode, the electric energy in the energy storage device 3 can be used for driving the first motor and speed reducer 5, the third motor and speed reducer 8, and the fourth motor and speed reducer 9 through the controller 7.
When the whole machine driving mode is in an all-wheel driving mode, the engine 1 drives the generator 2 to generate electricity, a part of electric energy drives the second motor and the hydraulic system pump 4 through the controller 7 to provide hydraulic oil for the whole machine working device, the steering system and the braking system, a part of electric energy drives the first motor, the speed reducer 5 and the rear axle 6 to realize rear-wheel driving, and a part of electric energy drives the left front wheel and the right front wheel respectively through driving the third motor, the speed reducer 8, the fourth motor and the speed reducer 9 to realize full driving; the speed sensor of the first motor and reducer 5 outputs a rotation speed signal to the controller 7 and calculates the wheel rotation speed n 1 And vehicle speed V 1 So as to control the combination and the separation of the first clutch 502 and the second clutch 503 in the first motor and speed reducer 5 according to the vehicle speed and the traction force, realize low-speed large torque output or high-speed small torque output, and simultaneously the speed sensors of the third motor and speed reducer 8 and the fourth motor and speed reducer 9 output rotating speed signals to the controller 7 and calculate the rotating speed n of the left front wheel 2 Right front wheel speed n 3 Meanwhile, the controller 7 collects a front wheel steering angle beta and a front frame and rear frame hinging angle gamma, and then the controller 7 controls the rotating speeds of the first motor 501, the third motor and the fourth motor to realize the matching of the speeds of all wheels during all-wheel driving, so that the loss of parasitic circulating power is avoided.
When the driving mode is an all-wheel driving mode, the lead rate of the front wheel driving speed and the rear wheel driving speed can be adjusted through the lead rate according to different working condition requirements, the circulating power loss is reduced, the controller 7 calculates the speeds required by the left front wheel and the right front wheel through the speed sensor connected with the first motor and the speed reducer 5 and the lead rate set value B, and then the controller 7 controls the speed changes of the third motor and the speed reducer 8 and the fourth motor and the speed reducer 9 to realize the lead rate adjustment and the all-wheel driving speed matching.
When the driving mode is the front wheel driving mode, the controller 7 controls the first motor and the speed reducer 5 to be in a non-output state, the rear axle 6 is in a free state, and the controller 7 controls the third motor and the speed reducer 8, and the fourth motor and the speed reducer 9 to respectively drive the left front wheel and the right front wheel to drive so as to realize front wheel driving.
Claims (5)
1. The utility model provides an engineering machine tool thoughtlessly moves transmission system which characterized in that: the energy-saving control system comprises an engine (1), a generator (2), an energy storage device (3), a first motor, a speed reducer (5), a rear axle (6) and a controller (7), wherein the engine (1) is connected with the generator (2), the controller (7) is respectively connected with the generator (2), the energy storage device (3), the first motor and the speed reducer (5), and the rear axle (6) is connected with the first motor and the speed reducer (5).
2. The hybrid transmission system of construction machinery according to claim 1, wherein: the engineering machinery hybrid transmission system further comprises a third motor and speed reducer (8) and a fourth motor and speed reducer (9), and the controller (7) is connected with the third motor and speed reducer (8) and the fourth motor and speed reducer (9) respectively.
3. The hybrid power transmission system for construction machinery according to claim 2, wherein: the engineering machinery hybrid transmission system further comprises a second motor and a hydraulic system pump (4), and the controller (7) is connected with the second motor and the hydraulic system pump (4).
4. The hybrid transmission system of construction machinery according to claim 2, wherein: a transfer case (10) is arranged between the engine (1) and the generator (2), and the engine (1) is further connected with a hydraulic system pump (11) through the transfer case (10).
5. The hybrid transmission system of construction machinery according to claim 3 or 4, wherein: the first motor and speed reducer (5) comprises a first motor (501), a first clutch (502), a second clutch (503), a first gear (504), a second gear (505), a third gear (506), a fourth gear (507), an input shaft (508) and a speed reducer output shaft (509), wherein the output end of the first motor (501) is connected with the input shaft (508), the first clutch (502), the second clutch (503), the first gear (504) and the fourth gear (507) are all installed on the input shaft (508), the second gear (505) and the third gear (506) are all installed on the speed reducer output shaft (509), the first gear (504) is in meshing transmission connection with the second gear (505), the third gear (506) is in meshing transmission connection with the fourth gear (507), and the output shaft (509) is further connected with a rear axle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221044824.5U CN217994126U (en) | 2022-04-22 | 2022-04-22 | Hybrid transmission system of engineering machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221044824.5U CN217994126U (en) | 2022-04-22 | 2022-04-22 | Hybrid transmission system of engineering machinery |
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| CN217994126U true CN217994126U (en) | 2022-12-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115653031A (en) * | 2022-12-27 | 2023-01-31 | 徐州徐工矿业机械有限公司 | Power system of large-scale positive shovel type mining excavator |
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2022
- 2022-04-22 CN CN202221044824.5U patent/CN217994126U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115653031A (en) * | 2022-12-27 | 2023-01-31 | 徐州徐工矿业机械有限公司 | Power system of large-scale positive shovel type mining excavator |
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