CN111075901A - Stepless speed change transmission mechanism of boat tractor - Google Patents
Stepless speed change transmission mechanism of boat tractor Download PDFInfo
- Publication number
- CN111075901A CN111075901A CN202010058545.3A CN202010058545A CN111075901A CN 111075901 A CN111075901 A CN 111075901A CN 202010058545 A CN202010058545 A CN 202010058545A CN 111075901 A CN111075901 A CN 111075901A
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- gear
- tractor
- transmission
- shaft
- speed change
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 140
- 230000008859 change Effects 0.000 title claims abstract description 58
- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 5
- 244000309464 bull Species 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B71/00—Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/06—Combinations of engines with mechanical gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
- F16H3/22—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially
- F16H3/30—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial
- F16H3/32—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial and an additional shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention relates to a stepless speed change transmission mechanism of a boat tractor, belonging to the technical field of transmission equipment of boat tractor. The stepless speed change transmission mechanism of the boat tractor comprises a diesel engine, a hydraulic stepless speed change device and an output speed reducer; one end of the tractor-ploughing boat frame is fixedly provided with a diesel engine; an input shaft is arranged in a boat tractor frame at one end of the diesel engine; one end of the input shaft is connected with the output end of the diesel engine; a hydraulic stepless speed change device is fixedly arranged on the tractor-ploughing boat frame on one side of the input shaft; the stepless speed change transmission mechanism of the boat tractor is specially designed according to the use characteristics of the boat tractor, can realize stepless speed change of the boat tractor at each gear, does not influence the output of the power of the boat tractor, solves the problem that the prior boat tractor cannot normally operate during speed reduction, and meets the use requirements of people.
Description
Technical Field
The invention relates to a stepless speed change transmission mechanism of a boat tractor, belonging to the technical field of transmission equipment of boat tractor.
Background
The boat tractor is an ideal machine for implementing the protective cultivation of paddy fields, the bottom of the boat tractor slides along the ground surface, the boat tractor has the characteristics of no deep ploughing, no ditch grinding and no damage to the soil structure level, and the boat tractor is suitable for the operation of basic farmlands, deep mud-foot fields, the bottoms of culture ponds and aquatic vegetable fields and can also be used as a traction machine for mud flats and marshland.
The existing boat tractor is a gear boat tractor, which is not only operated at one or more fixed speeds, but also can be decelerated only by reducing the accelerator under special conditions, and the output power is reduced inevitably when the accelerator is reduced, so that the problem that the boat tractor cannot normally operate when the speed is reduced is solved; therefore, there is a need to develop a stepless speed change transmission mechanism, so that the boat tractor can realize stepless speed change, and further solve the above problems of the existing boat tractor.
Disclosure of Invention
The invention aims to: the stepless speed change transmission mechanism of the boat tractor is compact in structure and ingenious in design and solves the problem that the existing boat tractor cannot normally operate during speed reduction.
The technical scheme of the invention is as follows:
a stepless speed change transmission mechanism of a boat tractor comprises a diesel engine, a hydraulic stepless speed change device and an output speed reducer; the method is characterized in that: one end of the tractor-ploughing boat frame is fixedly provided with a diesel engine; an input shaft is arranged in a boat tractor frame at one end of the diesel engine; one end of the input shaft is connected with the output end of the diesel engine; a hydraulic stepless speed change device is fixedly arranged on the tractor-ploughing boat frame on one side of the input shaft; a transmission shaft A is arranged on the frame of the tractor-ploughing boat at one side of the stepless speed change device; one end of the transmission shaft A is connected with the input end of the stepless speed change device; the other end of the transmission shaft A is connected with one end of the input shaft through a bevel gear pair; the output end of the stepless speed change device is connected with a transmission shaft B; a transmission shaft C, a transmission shaft D and a transmission shaft E are arranged on the frame of the boat tractor on one side of the transmission shaft B at intervals; the transmission shaft B is connected with the transmission shaft C through a straight gear pair; a triple gear is arranged on the transmission shaft C in a sliding way through a shifting fork B; a high-speed gear, a medium-speed gear and a low-speed gear are fixedly arranged on the transmission shaft D at intervals; the triple gear is in intermittent meshing connection with the high-speed gear, the medium-speed gear and the low-speed gear; a transmission gear A is fixedly arranged on the transmission shaft E; the transmission gear A is meshed with the high-speed gear; the transmission shafts E at the two sides of the transmission gear A are respectively provided with a steering clutch gear through a shifting fork C; a return spring is arranged on the transmission shaft E at one side of the steering clutch gear; a double gear is symmetrically arranged on the tractor-ploughing boat frame on one side of the transmission shaft E through the transmission shaft F; the big gear of the duplicate gear is meshed with the corresponding steering clutch gear, and a transmission gear B is symmetrically and fixedly arranged on the frame of the boat tractor on one side of the transmission shaft F through two groups of transmission shafts H; the transmission gear B is meshed with a pinion of the corresponding duplicate gear; output speed reducers are symmetrically arranged on two sides of the tail end of the tractor-ploughing boat frame; the input end of the output speed reducer is connected with one end of the corresponding transmission shaft H; the output end of the output speed reducer is connected with wheels.
The input shaft is provided with a duplex transmission gear A in a sliding way through a shifting fork A; an external force output shaft is arranged on the boat tractor frame on one side of the input shaft; a speed change large gear and a speed change small gear are fixedly arranged on the external force output shaft at intervals; a pinion on the duplex transmission gear A is intermittently meshed and connected with a speed change gearwheel; a large gear on the duplex transmission gear A is intermittently meshed and connected with a speed change pinion; the external force output shaft extends to the rear end of the frame of the boat tractor to provide power for the agricultural implements hung at the rear end of the frame of the boat tractor.
The invention has the advantages that:
the stepless speed change transmission mechanism of the boat tractor is specially designed according to the use characteristics of the boat tractor, can realize stepless speed change of the boat tractor at each gear, does not influence the output of the power of the boat tractor, solves the problem that the prior boat tractor cannot normally operate during speed reduction, and meets the use requirements of people.
The attached drawings of the specification:
FIG. 1 is a schematic diagram of the mechanism of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is an enlarged schematic view of a portion B in fig. 1.
In the figure: 1. the hydraulic power transmission device comprises a diesel engine, 2, a hydraulic stepless speed change device, 3, an output speed reducer, 4, a tractor-ploughing boat frame, 5, an input shaft, 6, transmission shafts A, 7, a bevel gear pair, 8, shifting forks A, 9, a duplex transmission gear A, 10, an external force output shaft, 11, an agricultural implement, 12, a shifting gear wheel, 13, a shifting pinion, 14, a transmission shaft B, 15, a transmission shaft C, 16, a transmission shaft D, 17, a straight gear pair, 18, a shifting fork B, 19, a triple gear, 20, a high-speed gear, 21, a middle-speed gear, 22, a low-speed gear, 23, a transmission shaft E, 24, a transmission gear A, 25, a shifting fork C, 26, a steering clutch gear, 27, a duplex gear, 28, a transmission shaft F, 29, a transmission shaft H, 30, a transmission gear B, 31.
Detailed Description
The stepless speed change transmission mechanism of the boat tractor comprises a diesel engine 1, a hydraulic stepless speed change device 2 and an output speed reducer 3.
One end of a tractor-ploughing boat frame 4 is fixedly provided with a diesel engine 1 (see the attached figure 1 in the specification); an input shaft 5 is arranged in a tractor-ploughing boat frame 4 at one end of the diesel engine 1; one end of the input shaft 5 is connected with the output end of the diesel engine 1. When the diesel engine 1 works, the input shaft 5 can be driven to rotate synchronously.
A hydraulic stepless speed change device 2 is fixedly arranged on the tractor-ploughing boat frame 4 on one side of the input shaft 5;
the hydraulic stepless speed change device 2 is a purchased equipment which realizes stepless speed change by combining a hydraulic pump and a hydraulic motor, and is of a model number LY-HPVMF-37-L-02C.
A transmission shaft A6 (see the attached figure 1 in the specification) is arranged on the tractor-ploughing boat frame 4 at one side of the stepless speed change device 2; one end of the transmission shaft A6 is connected with the input end of the stepless speed change device 2; the other end of the transmission shaft A6 is connected with one end of the input shaft 5 through a bevel gear pair 7; when the diesel engine 1 drives the input shaft 5 to operate, power is transmitted to the continuously variable transmission 2 through the bevel gear pair 7 and the transmission shaft a 6.
The output end of the stepless speed change device 2 is connected with a transmission shaft B14; the machine ploughing boat frame 4 on one side of the transmission shaft B14 is provided with a transmission shaft C15, a transmission shaft D16 and a transmission shaft E23 at intervals (see the attached figure 1 in the specification).
The transmission shaft B14 is connected with the transmission shaft C15 through a spur gear pair 17; when the stepless speed change device 2 works, the transmission shaft C15 can be driven to rotate through the transmission shaft B14 and the spur gear pair 17.
A driving shaft C15 is provided with a triple gear 19 (see the description and the attached drawing 1) in a sliding way through a shifting fork B18; under the action of an external operating rod, the shifting fork B18 can drive the triple gear 19 to move transversely along the transmission shaft C15.
A high-speed gear 20, a medium-speed gear 21 and a low-speed gear 22 are fixedly arranged on the transmission shaft D16 at intervals; the triple gear 19 is in intermittent meshing connection with a high-speed gear 20, a medium-speed gear 21 and a low-speed gear 22; when the shifting fork B18 works, the corresponding gear of the triple gear 19 can be driven to be meshed with the high-speed gear 20, the medium-speed gear 21 or the low-speed gear 22; therefore, the conversion of the gear of the boat tractor can be realized by utilizing the difference of the transmission ratio of each engaged gear. In addition, since the power output by the diesel engine 1 is the same when the diesel engine is normally operated, the torque is smaller when the gear of the transmission mechanism is higher; the lower the gear, the greater the torque. So this drive mechanism can use low gear to climb to satisfy the use needs of boat tractor.
A transmission gear A24 is fixedly arranged on the transmission shaft E23; the transmission gear A24 is meshed with the high-speed gear 20 (referring to the figure 3 in the specification, the transmission gear A24 is meshed with the high-speed gear 20 in any gear position); therefore, when the transmission shaft D16 rotates, the transmission shaft D16 can drive the transmission shaft E23 to rotate synchronously through the high-speed gear 20 and the transmission gear A24.
A steering clutch gear 26 is respectively arranged on the transmission shaft E23 at two sides of the transmission gear A24 through a shifting fork C25 (refer to the attached figure 3 in the specification); under the action of an external operating rod, the shifting fork C25 can drive the steering clutch gear 26 to move along the transmission shaft E23; a return spring 32 is arranged on the transmission shaft E23 on one side of the steering clutch gear 26 (see the description and the attached figure 3); the steering clutch gear 26 always has a tendency to return to the operating position under the influence of the spring force of the return spring 32.
A double-linked gear 27 is symmetrically arranged on the tractor-ploughing boat frame 4 at one side of the transmission shaft E23 through a transmission shaft F28; the big gear of the duplicate gear 27 is meshed with the corresponding steering clutch gear 26; when the transmission shaft E23 rotates, the dual gear 27 can be driven to rotate synchronously through the steering clutch gear 26.
A driving gear B30 is symmetrically and fixedly arranged on the tractor-ploughing boat frame 4 at one side of the driving shaft F28 through two groups of driving shafts H29 (see the attached figure 1 of the specification); the transmission gear B30 is in meshing connection with the pinion of the corresponding duplicate gear 27. When the dual gear 27 works, the transmission gear B30 can drive the transmission shaft H29 to rotate.
The input shaft 5 is provided with a duplex transmission gear A9 in a sliding way through a shifting fork A8; an external force output shaft 10 is arranged on the tractor-ploughing boat frame 4 on one side of the input shaft 5; a large speed change gear 12 and a small speed change gear 13 are fixedly arranged on the external force output shaft 10 at intervals; a pinion on the duplex transmission gear A9 is intermittently meshed with the gear change gearwheel 12; a gearwheel on the duplex transmission gear A9 is in intermittent meshing connection with the change gear pinion 13 (see the description and the attached figure 2); the external force output shaft 10 extends to the rear end of the tractor plough ship frame 4 to provide power for an agricultural implement 11 suspended at the rear end of the tractor plough ship frame 4 (see the attached figure 1 in the specification).
Under the action of the shifting fork A8, when the large gear on the duplex transmission gear A9 is meshed and connected with the speed change pinion 13, the high-rotation-speed output of the external force output shaft 10 can be realized; when the pinion on the duplex transmission gear A9 is meshed with the gear change gearwheel 12, the low-speed output of the external force output shaft 10 can be realized; when the duplex transmission gear A9 is not connected with the gear change gearwheel 12 and the gear change pinion 13, the unpowered output of the external force output shaft 10 can be realized.
When the stepless speed change transmission mechanism of the boat tractor works, the diesel engine 1 transmits power to the stepless speed change device 2 through the input shaft 5, the bevel gear pair 7 and the transmission shaft A6. The continuously variable transmission 2 rotates the transmission shaft C15 via the transmission shaft B14 and the spur gear set 17.
In the rotating process of the transmission shaft C15, the shifting mode of the triple gear 19 can be controlled by the shifting fork B18, and the triple gear is meshed and connected with the corresponding gear and the high-speed gear 20, the medium-speed gear 21 or the low-speed gear 22; therefore, the transmission shaft C15 can drive the transmission shaft D16 to rotate through the triple gear 19 and the meshed gears; therefore, the conversion of high-speed, medium-speed and low-speed gears of the boat tractor can be realized by utilizing the difference of transmission ratios of all the engaged gears.
The transmission shaft D16 drives the transmission shaft E23 to synchronously rotate through the high-speed gear 20 and the transmission gear A24. The transmission shaft E23 can drive the dual gear 27 to synchronously rotate through the steering clutch gear 26 in the rotating process.
When the duplicate gear 27 works, the transmission gear B30, the transmission shaft H29 and the output speed reducer 3 drive the wheels 31 to rotate, so that the power output of the boat tractor can be realized.
In the process, if the boat tractor needs to turn left, people can drive the left steering clutch gear 26 to be separated from the contact with the transmission gear A24 by controlling the left shifting fork C25, so that the left wheel 31 can lose power, and the aim of turning the boat tractor left is fulfilled. When the boat tractor needs to turn right, people can control the right shifting fork C25 to drive the right steering clutch gear 26 to be separated from the contact with the transmission gear A24, so that the boat tractor can turn right.
When the boat tractor works normally and needs to be decelerated, people can operate the stepless speed change device 2 to achieve the aim of deceleration in a stepless speed reduction mode. When the stepless speed change device 2 is used for stepless speed reduction, the power output is not affected, so that the action of the boat tractor is not affected.
The stepless speed change transmission mechanism of the boat tractor is specially designed according to the use characteristics of the boat tractor, can realize stepless speed change of the boat tractor at each gear, does not influence the output of the power of the boat tractor, solves the problem that the prior boat tractor cannot normally operate during speed reduction, and meets the use requirements of people.
Claims (2)
1. A stepless speed change transmission mechanism of a boat tractor comprises a diesel engine (1), a hydraulic stepless speed change device (2) and an output speed reducer (3); the method is characterized in that: one end of the tractor-ploughing boat frame (4) is fixedly provided with a diesel engine (1); an input shaft (5) is arranged in a tractor-ploughing boat frame (4) at one end of the diesel engine (1); one end of the input shaft (5) is connected with the output end of the diesel engine (1); a hydraulic stepless speed change device (2) is fixedly arranged on the tractor-ploughing boat frame (4) on one side of the input shaft (5); a transmission shaft A (6) is arranged on the tractor-ploughing boat frame (4) at one side of the stepless speed change device (2); one end of the transmission shaft A (6) is connected with the input end of the stepless speed change device (2); the other end of the transmission shaft A (6) is connected with one end of the input shaft (5) through a bevel gear pair (7); the output end of the stepless speed change device (2) is connected with a transmission shaft B (14); a driving shaft C (15), a driving shaft D (16) and a driving shaft E (23) are arranged on the tractor-ploughing boat frame (4) at one side of the driving shaft B (14) at intervals; the transmission shaft B (14) is connected with the transmission shaft C (15) through a straight gear pair (17); a triple gear (19) is arranged on the transmission shaft C (15) in a sliding way through a shifting fork B (18); a high-speed gear (20), a medium-speed gear (21) and a low-speed gear (22) are fixedly arranged on the transmission shaft D (16) at intervals; the triple gear (19) is in intermittent meshing connection with the high-speed gear (20), the medium-speed gear (21) and the low-speed gear (22); a transmission gear A (24) is fixedly arranged on the transmission shaft E (23); the transmission gear A (24) is meshed with the high-speed gear (20); a steering clutch gear (26) is respectively arranged on the transmission shafts E (23) at the two sides of the transmission gear A (24) through a shifting fork C (25); a return spring (32) is arranged on the transmission shaft E (23) at one side of the steering clutch gear (26); a double gear (27) is symmetrically arranged on the tractor-ploughing boat frame (4) at one side of the transmission shaft E (23) through a transmission shaft F (28); the big gear of the duplicate gear (27) is in intermittent meshing connection with the corresponding steering clutch gear (26); a transmission gear B (30) is symmetrically and fixedly arranged on the tractor-ploughing boat frame (4) at one side of the transmission shaft F (28) through two groups of transmission shafts H (29); the transmission gear B (30) is meshed with the pinion of the corresponding duplicate gear (27); the two sides of the tail end of the boat tractor frame (4) are symmetrically provided with output speed reducers (3); the input end of the output speed reducer (3) is connected with one end of the corresponding transmission shaft H (29); the output end of the output speed reducer (3) is connected with wheels (31).
2. The continuously variable transmission mechanism of a boat tractor according to claim 1, wherein: the input shaft (5) is provided with a duplex transmission gear A (9) in a sliding way through a shifting fork A (8); an external force output shaft (10) is arranged on the tractor-ploughing boat frame (4) on one side of the input shaft (5); a speed change gearwheel (12) and a speed change pinion (13) are fixedly arranged on the external force output shaft (10) at intervals; a pinion on the duplex transmission gear A (9) is intermittently meshed and connected with a speed change gearwheel (12); a bull gear on the duplex transmission gear A (9) is intermittently meshed and connected with a speed change pinion (13); the external force output shaft (10) extends to the rear end of the tractor-ploughing boat frame (4) to provide power for an agricultural implement (11) hung at the rear end of the tractor-ploughing boat frame (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010058545.3A CN111075901B (en) | 2020-01-19 | 2020-01-19 | Stepless speed change transmission mechanism of boat tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010058545.3A CN111075901B (en) | 2020-01-19 | 2020-01-19 | Stepless speed change transmission mechanism of boat tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111075901A true CN111075901A (en) | 2020-04-28 |
| CN111075901B CN111075901B (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010058545.3A Active CN111075901B (en) | 2020-01-19 | 2020-01-19 | Stepless speed change transmission mechanism of boat tractor |
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| Country | Link |
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| CN (1) | CN111075901B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203285925U (en) * | 2013-04-28 | 2013-11-13 | 夏宏森 | Gearbox used for boat tractor |
| CN205089929U (en) * | 2015-10-22 | 2016-03-16 | 吉首市宗南重工制造有限公司 | Machine liquid hybrid -driven formula gearbox |
| CN106195146A (en) * | 2016-10-10 | 2016-12-07 | 湖南润田农机装备科技股份有限公司 | Crawler tractor infinitely variable speeds third gear box assembly |
| JP2019110815A (en) * | 2017-12-22 | 2019-07-11 | 株式会社クボタ | Paddy field implement |
| CN211550442U (en) * | 2020-01-19 | 2020-09-22 | 湖北首兴机械股份有限公司 | Stepless speed change transmission mechanism of boat tractor |
-
2020
- 2020-01-19 CN CN202010058545.3A patent/CN111075901B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203285925U (en) * | 2013-04-28 | 2013-11-13 | 夏宏森 | Gearbox used for boat tractor |
| CN205089929U (en) * | 2015-10-22 | 2016-03-16 | 吉首市宗南重工制造有限公司 | Machine liquid hybrid -driven formula gearbox |
| CN106195146A (en) * | 2016-10-10 | 2016-12-07 | 湖南润田农机装备科技股份有限公司 | Crawler tractor infinitely variable speeds third gear box assembly |
| JP2019110815A (en) * | 2017-12-22 | 2019-07-11 | 株式会社クボタ | Paddy field implement |
| CN211550442U (en) * | 2020-01-19 | 2020-09-22 | 湖北首兴机械股份有限公司 | Stepless speed change transmission mechanism of boat tractor |
Non-Patent Citations (1)
| Title |
|---|
| 朱镇;高翔;曹磊磊;潘道远;朱彧: "液压机械无级变速器设计方案分析", 机械传动, no. 12, 15 December 2015 (2015-12-15), pages 203 - 207 * |
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| Publication number | Publication date |
|---|---|
| CN111075901B (en) | 2024-06-04 |
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