CN115589854A - Driving speed reduction transmission mechanism for mower walking wheel - Google Patents
Driving speed reduction transmission mechanism for mower walking wheel Download PDFInfo
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- CN115589854A CN115589854A CN202211207495.6A CN202211207495A CN115589854A CN 115589854 A CN115589854 A CN 115589854A CN 202211207495 A CN202211207495 A CN 202211207495A CN 115589854 A CN115589854 A CN 115589854A
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- Prior art keywords
- planet carrier
- planet
- transmission
- input shaft
- wheel
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/06—Gearings
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
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Abstract
The invention relates to a driving speed reduction transmission mechanism for a traveling wheel of a mower, which comprises an input shaft, wherein a first planet carrier which is coaxial with the input shaft is arranged on the outer side of the circumference of the input shaft, the input shaft can rotate around an axis, an output section which penetrates through the first planet carrier and extends outwards and is coaxial with the input shaft is arranged on the end surface of the input shaft, a second planet carrier which is coaxial with the output section is arranged on the outer side of the circumference of the output section, a sun gear which is coaxial with the output section is arranged at the end part of the output section, a first planet gear which is meshed with the sun gear for transmission is arranged in the second planet carrier, a fixed gear ring is arranged on the outer side of the circumference of the second planet carrier, and the second planet carrier is in transmission connection with an output gear ring outside the first planet carrier. The invention has the characteristics of shortening the axial length of the mechanism, ensuring low rotating speed and high torque of the motor, reducing the whole volume of the mechanism, reducing the cost, reducing the limitation of output torque and the like.
Description
Technical Field
The invention belongs to a speed reduction transmission mechanism, and particularly relates to a driving speed reduction transmission mechanism for a traveling wheel of a mower.
Background
With the development of urban greening, the area of lawns and gardens is increased, and for trimming and maintaining the lawns, the lawnmowers are generally adopted to reduce the burden of gardeners, and the working mode of the lawnmowers is mostly that a motor is provided with an electrified variable speed reduction box and a clutch drives a travelling wheel.
Chinese patent application with publication number CN213404193U discloses a driving device of a mower and a sealing structure of the driving device, the patent includes a reduction gearbox and a motor casing, and a planetary gear set and a transmission member which are arranged in the reduction gearbox, the motor casing is directly connected to the reduction gearbox, a motor shaft is coaxially connected with a sun gear of the planetary gear set, the transmission member is connected with a small planetary gear, a mounting opening of the motor casing and upper and lower openings of the reduction gearbox are respectively provided with a spacing plug of a blocking member, and a ventilation duct for heat dissipation is left between the blocking members between the motor casing and the reduction gearbox.
In the patent, the travelling wheels need to drive the whole mower to travel, so that a larger torque is needed, and the selected motor is usually a motor with low rotating speed and high torque; a motor with a small volume is required to be matched with a speed reducing mechanism to lift torque, and then the speed reducing mechanism is generally in multi-stage transmission and has a long axial length, so that the volume is further increased.
Disclosure of Invention
The invention aims to provide a driving speed reduction transmission mechanism for a mower travelling wheel, which solves the problems of large volume, high cost, limited output torque and the like in the prior art.
The technical purpose of the invention is mainly solved by the following technical scheme: a driving speed reduction transmission mechanism for a traveling wheel of a mower comprises an input shaft, wherein a first planet carrier which is coaxial with the input shaft is arranged on the outer side of the circumference of the input shaft, the input shaft can rotate around an axis, an output section which penetrates through the first planet carrier to extend outwards and is coaxial with the input shaft is arranged on the end face of the input shaft, a second planet carrier which is coaxial with the output section is arranged on the outer side of the circumference of the output section, a sun gear which is coaxial with the output section is arranged at the end part of the output section, a first planet gear which is in meshing transmission with the sun gear is arranged in the second planet carrier, a fixed gear ring which is in meshing transmission with the first planet gear and is coaxial with the second planet carrier is arranged on the outer side of the circumference of the second planet carrier, and the second planet carrier is in transmission connection with an output gear ring outside the first planet carrier; the first planet carrier can fix the input shaft, the input shaft can be driven to rotate by an external driving piece, the input shaft drives the second planet carrier to realize integral transmission, the input shaft can drive the second planet carrier to fix the gear ring through the matching transmission of the sun gear and the first planet gear, the sun gear and the first planet gear are both positioned inside the first planet carrier, the axial arrangement of the sun gear and the first planet gear can be avoided, the integral axial length of the speed reducing and accelerating mechanism can be increased, the normal transmission and the stable transmission of the speed reducing and transmitting mechanism can be ensured, and under the condition of shortening the axial length, higher torque is ensured, the volume of the device is effectively reduced, the improvement of output torque is ensured, the structure is simple, and the cost is reduced.
Preferably, an input cavity for accommodating an input shaft is arranged on the end face of the first planet carrier, and at least one first bearing connected with the outer wall of the input shaft is arranged on the inner wall of the input cavity; the input chamber of above-mentioned first planet carrier can hold the input shaft, and has guaranteed the rotation of input shaft, and the input shaft pivoted stability and smooth and easy nature have been strengthened in the setting of first bearing.
Preferably, the second planet carrier comprises a transmission frame for fixing the first planet wheel, the transmission frame is coaxially arranged with the input shaft, and the side wall of the transmission frame is connected with the first planet carrier through at least one second bearing; the transmission frame can support and fix the first planet wheel, ensures stable transmission of the first planet wheel, and can rotate around the axis of the input shaft through the second bearing so as to form transmission with the output gear ring.
Preferably, a first transmission cavity for accommodating the sun gear and the first planet gear is arranged in the transmission frame, the sun gear and the second planet carrier are coaxially arranged, the first planet gear is arranged on the peripheral side of the sun gear, and a wheel shaft of the first planet gear is connected with the second planet carrier; the setting of above-mentioned first transmission chamber can hold first planet wheel and sun gear for first planet wheel and sun gear all are located inside the first planet carrier, thereby reduce the occupation space of first planet wheel and sun gear, shorten the axial length of mechanism, reduce the volume, and the cooperation of the first planet wheel of accessible and sun gear realizes the steady drive to the transmission frame simultaneously.
Preferably, an end cover fixedly connected with the first planet carrier is arranged on the outer side of the circumference of the second planet carrier, the fixed gear ring is arranged between the first planet carrier and the end cover and is fixedly connected with the second planet carrier, and the first planet gear is arranged on the inner side of the fixed gear ring and is in meshing transmission with the fixed gear ring; the end cover is fixedly connected with the first planet carrier, the fixed gear ring is fixed between the first planet carrier and the end cover, and the first planet wheel is meshed with the fixed gear ring, so that the sun wheel can drive the first planet wheel to rotate around the axis of the input shaft, the meshing of the first planet wheel and the fixed gear ring is realized, and the stable transmission of the second planet carrier can be realized while the axial length of the mechanism is reduced.
Preferably, the second planet carrier comprises a transmission cylinder which is connected with the transmission frame and sleeved on the periphery of the output section, at least one second planet wheel is arranged on the periphery of the transmission cylinder, and the side wall of the transmission cylinder can be in meshing transmission with the second planet wheel; the setting of above-mentioned transmission cylinder can realize the rotation of transmission cylinder through the rotation of transmission frame, and the transmission of second planet wheel accessible transmission cylinder rotates to can stabilize the transmission to the output ring gear, realize multistage speed reduction transmission's effect.
Preferably, a second transmission cavity is formed in the first planet carrier corresponding to the outer side of the transmission cylinder, the second planet wheel is arranged in the second transmission cavity, and a wheel shaft of the second planet wheel is fixedly connected with the second transmission cavity; the setting in above-mentioned second transmission chamber can hold the second planet wheel, increases the accommodation space of second planet wheel, carries out the outrigger to the transmission of second planet wheel, further shortens the axial length of mechanism, reduces the volume, guarantees the stability of speed reduction transmission function simultaneously.
Preferably, an output gear ring capable of rotating around the axis of the input shaft is arranged on the side wall of the first planet carrier, the output gear ring is connected with the side wall of the first planet carrier through at least one third bearing, and the inner side of the output gear ring is in meshing transmission with the second planet gear; the output gear ring can rotate through the transmission of the second planet gear, and can rotate on the first planet carrier through the third bearing, so that the effect of stable transmission is effectively ensured.
Therefore, the invention has the characteristics of shortening the axial length of the mechanism, ensuring low rotating speed and high torque of the motor, reducing the whole volume of the mechanism, reducing the cost, reducing the limit of output torque and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
As shown in fig. 1, a driving reduction transmission mechanism for a traveling wheel of a mower includes an input shaft 1, a first planet carrier 2 coaxially disposed with the input shaft 1 is disposed on an outer circumferential side of the input shaft 1, the input shaft 1 is rotatable around an axis, an output section 11 passing through the first planet carrier 2 and extending outward and coaxially disposed with the input shaft 1 is disposed on an end surface of the input shaft 1, a second planet carrier 3 coaxially disposed with the output section 11 is disposed on an outer circumferential side of the output section 11, a sun gear 12 coaxially disposed with the output section 11 is disposed at an end portion of the output section 11, a first planet gear 31 meshed with the sun gear 12 and driven by the sun gear 31 is disposed inside the second planet carrier 3, a fixed ring gear 33 meshed with the first planet gear 31 and coaxially disposed with the second planet carrier 3 is disposed on an outer circumferential side of the second planet carrier 3, the second planet carrier 3 is in transmission connection with an output ring gear 4 outside the first planet carrier 2, an input cavity 21 for accommodating the input shaft 1 is disposed on an end surface of the first planet carrier 2, and at least one first bearing 13 connected with an outer wall of the input cavity 21 is disposed on an inner wall of the input cavity.
The input shaft is connected with an output shaft of an external driving piece, the input shaft rotates, the position of the input shaft is fixed by the first planet carrier, the first planet carrier can rotate around the axis of the input shaft, the output section of the input shaft drives the sun wheel positioned in the second planet carrier to synchronously rotate, the rotation of the sun wheel can drive the first planet wheel to rotate, the first planet wheel is respectively in meshing transmission with the fixed gear ring and the sun wheel, the fixed gear ring is coaxially arranged with the sun wheel, therefore, when the sun wheel drives the first planet wheel to rotate, the first planet wheel rotates along the meshing tooth of the fixed gear ring, the fixed gear ring is fixed and does not rotate, when the first planet wheel rotates, the second planet carrier can be driven to synchronously rotate around the axis of the sun wheel, and the output gear ring rotates along with the rotation of the second planet carrier.
As shown in fig. 1, the second planet carrier 3 includes a transmission frame 32 for fixing the first planet gear 31, the transmission frame 32 is disposed coaxially with the input shaft 1, a side wall of the transmission frame 32 is connected with the first planet carrier 2 through at least one second bearing 13, a first transmission cavity 321 for accommodating the sun gear 12 and the first planet gear 31 is disposed inside the transmission frame 32, the sun gear 12 is disposed coaxially with the second planet carrier 3, the first planet gear 31 is disposed on a peripheral side of the sun gear 12, a wheel shaft of the first planet gear 31 is connected with the second planet carrier 3, an end cover 5 fixedly connected with the first planet carrier 2 is disposed on a peripheral outer side of the second planet carrier 3, the fixed ring gear 33 is disposed between the first planet carrier 2 and the end cover 5 and fixedly connected with the second planet carrier 2, and the first planet gear 31 is disposed on an inner side of the fixed ring gear 33 and is engaged with the fixed ring gear 33 for transmission.
The transmission frame is directly connected with the transmission cylinder, the transmission cylinder is sleeved on the periphery of the output section of the input shaft and is not in direct contact with the input shaft, the transmission frame can rotate on the inner side of the first planet frame through the second bearing, the first planet wheel rotates in the first transmission cavity and keeps meshed with the sun wheel, the end cover seals the first planet frame, the end cover, the fixed gear ring and the first planet frame are sequentially connected and fixed through bolts, and when the first planet wheel rotates, the first planet wheel can revolve around the sun wheel while rotating along the inner ring of the fixed gear ring fixed on the first planet frame.
As shown in fig. 1, the second planet carrier 3 includes a transmission cylinder 34 connected to the transmission frame 32 and sleeved on the periphery of the output section 11, at least one second planet wheel 23 is disposed on the periphery of the transmission cylinder 34, a side wall of the transmission cylinder 34 is capable of being in meshing transmission with the second planet wheel 23, a second transmission cavity 22 is disposed on the first planet carrier 2 corresponding to the outside of the transmission cylinder 34, the second planet wheel 23 is disposed in the second transmission cavity 22, a wheel shaft of the second planet wheel 23 is fixedly connected to the second transmission cavity 22, an output ring gear 4 capable of rotating around the axis of the input shaft 1 is disposed on the side wall of the first planet carrier 2, the output ring gear 4 is connected to the side wall of the first planet carrier 2 through at least one third bearing 41, and the inside of the output ring gear 4 is in meshing transmission with the second planet wheel 23.
The transmission cylinder is sleeved on the periphery of the output section of the input shaft, the side wall of the transmission cylinder is provided with a tooth meshed with the second planet wheel, the second planet wheel can be driven to rotate, the transmission frame rotates around the axis of the input section under the matching of the first planet wheel and the fixed gear ring, the transmission cylinder rotates along with the rotation of the transmission frame and the cylinder wall, the rotation of the transmission cylinder drives the second planet wheel to rotate around the axis of the input shaft, meanwhile, the second planet wheel is in meshed transmission with the output gear ring, because the first planet wheel frame is fixed, and the second planet wheel rotates around the self wheel shaft, therefore, the rotation of the second planet wheel can drive the output gear ring to synchronously rotate through meshed transmission, thereby realizing integral speed reduction transmission, the sun wheel, the first planet wheel, the second planet wheel and the transmission cylinder are both located in the first planet wheel frame and the second planet wheel frame, the axial length of the mechanism is effectively shortened, and the size of the mechanism is reduced.
Claims (8)
1. The utility model provides a lawn mower walking wheel is with drive reduction gears which characterized in that: including input shaft (1), the circumference outside of input shaft (1) is equipped with first planet carrier (2) with the coaxial setting of input shaft (1), input shaft (1) can rotate around the axis, be equipped with on the terminal surface of input shaft (1) and pass first planet carrier (2) and extend outwards and with output section (11) the coaxial setting of input shaft (1) output section (11), the circumference outside of output section (11) is equipped with second planet carrier (3) with output section (11) coaxial setting, the tip of output section (11) is equipped with sun gear (12) with output section (11) coaxial setting, second planet carrier (3) inside be equipped with sun gear (12) meshing driven first planet gear (31), the circumference outside of second planet carrier (3) is equipped with first planet gear (31) meshing transmission and with second planet carrier (3) coaxial setting fixed ring gear (33), second planet carrier (3) are connected with the transmission of first planet carrier (2) outside output ring gear (4).
2. The drive reduction transmission mechanism for the road wheel of a mower according to claim 1, wherein: the end face of the first planet carrier (2) is provided with an input cavity (21) for accommodating the input shaft (1), and the inner wall of the input cavity (21) is provided with at least one first bearing (13) connected with the outer wall of the input shaft (1).
3. The drive reduction transmission mechanism for the road wheel of a mower according to claim 1, wherein: the second planet carrier (3) comprises a transmission frame (32) for fixing the first planet carrier (31), the transmission frame (32) and the input shaft (1) are coaxially arranged, and the side wall of the transmission frame (32) is connected with the first planet carrier (2) through at least one second bearing (13).
4. The drive reduction transmission mechanism for the road wheel of a mower according to claim 3, wherein: the inside first transmission chamber (321) that is used for holding sun gear (12) and first planet wheel (31) that is equipped with of transmission frame (32), sun gear (12) and second planet carrier (3) coaxial arrangement, the week side of sun gear (12) is located in first planet wheel (31), the shaft and the second planet carrier (3) of first planet wheel (31) are connected.
5. The drive reduction transmission mechanism for a mower road wheel according to claim 1, wherein: the circumference outside of second planet carrier (3) is equipped with end cover (5) with first planet carrier (2) fixed connection, fixed ring gear (33) are located between first planet carrier (2) and end cover (5) and with second planet carrier (2) fixed connection, fixed ring gear (33) are located to first planet wheel (31) inboard and with fixed ring gear (33) meshing transmission.
6. The drive reduction transmission mechanism for a mower road wheel according to claim 3, wherein: second planet carrier (3) include and are connected and overlap transmission cylinder (34) of locating output section (11) week side with transmission frame (32), the week side of transmission cylinder (34) is equipped with at least one second planet wheel (23), the lateral wall of transmission cylinder (34) can mesh the transmission with second planet wheel (23).
7. The drive reduction transmission mechanism for a mower road wheel according to claim 6, wherein: a second transmission cavity (22) is formed in the first planet carrier (2) corresponding to the outer side of the transmission cylinder (33), the second planet wheel (23) is arranged in the second transmission cavity (22), and a wheel axle of the second planet wheel (23) is fixedly connected with the second transmission cavity (22).
8. The drive reduction transmission mechanism for the road wheel of a mower according to claim 6 or 7, wherein: the planetary gear transmission mechanism is characterized in that an output gear ring (4) capable of rotating around the axis of the input shaft (1) is arranged on the side wall of the first planet carrier (2), the output gear ring (4) is connected with the side wall of the first planet carrier (2) through at least one third bearing (41), and the inner side of the output gear ring (4) is in meshing transmission with the second planet gear (23).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211207495.6A CN115589854A (en) | 2022-09-30 | 2022-09-30 | Driving speed reduction transmission mechanism for mower walking wheel |
| PCT/CN2023/103218 WO2024066558A1 (en) | 2022-09-30 | 2023-06-28 | Driving reduction gear mechanism for locomotion wheels of mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211207495.6A CN115589854A (en) | 2022-09-30 | 2022-09-30 | Driving speed reduction transmission mechanism for mower walking wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115589854A true CN115589854A (en) | 2023-01-13 |
Family
ID=84845519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211207495.6A Pending CN115589854A (en) | 2022-09-30 | 2022-09-30 | Driving speed reduction transmission mechanism for mower walking wheel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115589854A (en) |
| WO (1) | WO2024066558A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066558A1 (en) * | 2022-09-30 | 2024-04-04 | 浙江联宜电机有限公司 | Driving reduction gear mechanism for locomotion wheels of mower |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204372062U (en) * | 2014-09-30 | 2015-06-03 | 湖南中联重科车桥有限公司 | Wheel reductor, driving vehicle bridge and vehicle |
| TWM524409U (en) * | 2016-03-25 | 2016-06-21 | Sesame Motor Corp | Speed reducer having central supporting bearing division |
| CN212616133U (en) * | 2020-08-24 | 2021-02-26 | 东莞市卓蓝自动化设备有限公司 | Planetary reducer running gear |
| CN216078154U (en) * | 2021-11-17 | 2022-03-18 | 格力博(江苏)股份有限公司 | Garden tool walking driving mechanism and garden tool |
| CN216812723U (en) * | 2022-01-13 | 2022-06-24 | 牧川精密传动(浙江)有限公司 | Two-section type gear ring rotary speed reducer |
| CN217301458U (en) * | 2022-04-06 | 2022-08-26 | 湖北科峰智能传动股份有限公司 | Two-stage walking speed reducer |
| CN115589854A (en) * | 2022-09-30 | 2023-01-13 | 东阳市联宜机电有限公司（Cn） | Driving speed reduction transmission mechanism for mower walking wheel |
-
2022
- 2022-09-30 CN CN202211207495.6A patent/CN115589854A/en active Pending
-
2023
- 2023-06-28 WO PCT/CN2023/103218 patent/WO2024066558A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066558A1 (en) * | 2022-09-30 | 2024-04-04 | 浙江联宜电机有限公司 | Driving reduction gear mechanism for locomotion wheels of mower |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024066558A1 (en) | 2024-04-04 |
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