CN220748942U - Hub speed reducer - Google Patents
Hub speed reducer Download PDFInfo
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- CN220748942U CN220748942U CN202321713438.5U CN202321713438U CN220748942U CN 220748942 U CN220748942 U CN 220748942U CN 202321713438 U CN202321713438 U CN 202321713438U CN 220748942 U CN220748942 U CN 220748942U
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- gear
- planet carrier
- wheel
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- ring
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000010073 coating (rubber) Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model provides a hub speed reducer which comprises a motor, a transmission shaft, a planet wheel and a planet carrier, wherein a first gear is sleeved at the output end of the motor, a second gear is sleeved at one end of the transmission shaft, the second gear is externally meshed with the first gear, a sun wheel is connected with the other end of the transmission shaft, the sun wheel is externally meshed with the planet wheel, a cavity is arranged in one end of the planet carrier, the planet wheel is positioned in the cavity and rotatably connected with the planet carrier, a rotatable annular gear is sleeved at the outer wall of the planet carrier, the annular gear is internally meshed with the planet wheel, and an encapsulated wheel matched with external equipment is sleeved at the outer wall of the annular gear. The utility model has compact structure and effectively and reasonably utilizes the limited space on the premise of ensuring the working efficiency.
Description
Technical Field
The utility model relates to the technical field of mechanical transmission equipment, in particular to a hub speed reducer.
Background
The walking speed reducer is an industrial product with wide application, can reduce the rotating speed of a motor and increase output torque, and can be used as a matching component for industries such as lifting, excavating, transporting, building and the like. For example, when using on the AGV dolly, with the continuous development of industry, the degree of automation requirement of AGV dolly is higher and higher, and at present the AGV dolly also requires the AGV dolly size to be less and less when satisfying bearing capacity, also requires the reduction gearbox size to be shorter and shorter, and this reduction gearbox adopts parallel shaft to combine planetary structure, can control axial dimension very short, can also stagger motor and wheel installation axis parallel, has saved installation space, so has obtained extensive application at present.
Disclosure of Invention
In view of the above, in order to solve the above technical problems, an embodiment of the present utility model provides a hub reducer.
The hub speed reducer comprises a motor, a transmission shaft, a planet wheel and a planet carrier, wherein a first gear is sleeved at the output end of the motor, a second gear is sleeved at one end of the transmission shaft, the second gear is externally meshed with the first gear, a sun wheel is connected and arranged at the other end of the transmission shaft, the sun wheel is externally meshed with the planet wheel, a cavity is formed in one end of the planet carrier, the planet wheel is located in the cavity and rotatably connected with the planet carrier, a rotatable annular gear is sleeved at the outer wall of the planet carrier, the annular gear is internally meshed with the planet wheel, and an encapsulated wheel matched with external equipment is sleeved at the outer wall of the annular gear.
Further, the planet carrier is far away from the rotatable fixed cover of one end of cavity is equipped with first ring flange, ring gear one end with the planet carrier is kept away from the rotatable fixed connection of one end of first ring flange, the other end pass through the retaining member with the detachable fixed connection of first ring flange.
Further, the outer wall of the inner gear ring is sleeved with a protection cylinder, the rubber coating wheel is sleeved on the outer wall of the protection cylinder and fixedly connected with the outer wall of the protection cylinder, and one end of the inner wall of the protection cylinder is detachably and fixedly connected with the first flange plate through a locking piece.
Further, the fixing frame in the cavity is provided with a central shaft, the axis of the central shaft is parallel to the axis of the transmission shaft, the planet wheel is rotatably and fixedly sleeved on the central shaft, and one end, fixedly provided with the sun wheel, of the transmission shaft is positioned in the cavity and does not interfere with the planet carrier.
Further, a second flange plate is rotatably and fixedly sleeved on one end, close to the sun gear, of the transmission shaft, one side face of the second flange plate is detachably and fixedly connected with one end, far away from the first flange plate, of the planet carrier through a locking piece, and the other side face of the second flange plate is far away from the planet carrier.
Further, the planetary frame further comprises a third flange, a groove is formed in the center of one side face of the third flange, one end, provided with the second gear, of the transmission shaft is inserted into the groove and is fixedly connected with the third flange in a rotatable mode, one side face, provided with the groove, of the third flange is detachably and fixedly connected with one side face, away from the planet frame, of the second flange through a locking piece, and the other side face of the third flange abuts against the motor body.
Further, each locking member is a locking screw.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that: the hub speed reducer has the advantages that firstly, the parallel shafts are combined with the planetary structure, the internal structure is novel and diversified, and the axial size can be controlled to be very short; secondly, in the speed reducer, the first gear is supported by the motor shaft, so that the structure is simplified, the cost is saved, and the axial size is shortened; thirdly, the speed reducer is a two-stage speed reducer, the speed ratio is large, the output torque is large, and the axial size is short; fourth, the input and output parts of the speed reducer are staggered in parallel in space, so that the axial distance is shortened, and the limited space is reasonably utilized.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a hub reduction gear according to the present utility model.
In the figure: 1-motor, 2-output shaft, 3-first gear, 4-second gear, 5-transmission shaft, 6-sun gear, 7-planet wheel, 8-ring gear, 9-first ring flange, 10-protection cylinder, 11-rubber covered wheel, 12-second ring flange, 13-third ring flange, 14-planet carrier, 15-cavity, 16-center shaft, 17-first single-row deep groove ball bearing, 18-second single-row deep groove ball bearing, 19-third single-row deep groove ball bearing, 20-fourth single-row deep groove ball bearing, 21-needle bearing, 22-first screw, 23-second screw, 24-third screw, 25-fourth screw.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present utility model provides a hub reduction gear, which includes a motor 1, a sun gear 6, a transmission shaft 5, a planet wheel 7, and a planet carrier 14.
In this embodiment, the output shaft 2 of the motor 1 is fixedly sleeved with the first gear 3, and the output shaft 2 of the motor 1 is horizontally arranged, so that the first gear 3 can be driven to rotate by the driving of the motor 1; the transmission shaft 5 is located the top of motor 1, and the axis of transmission shaft 5 is parallel to each other with the axis of motor 1's output shaft 2, and motor 1 is kept away from to transmission shaft 5 one end near motor 1, the other end, and the fixed cover in one end that transmission shaft 5 is close to motor 1 is equipped with second gear 4, and second gear 4 and first gear 3 external engagement just so can drive second gear 4 when first gear 3 rotates.
The end part of the transmission shaft 5, which is close to the motor 1, is provided with a third flange 13, one side surface of the third flange 13 is close to the second gear 4, the other side surface of the third flange 13 is propped against and fixed with a machine body of the motor 1, a groove is formed in the center of one side surface of the third flange 13, which is close to the second gear 4, the corresponding end of the transmission shaft 5 is accommodated in the groove, one end of the transmission shaft 5 accommodated in the groove is sleeved with a first single-row deep groove ball bearing 17, the inner ring of the first single-row deep groove ball bearing 17 is fixedly connected with the outer wall of the corresponding end of the transmission shaft 5, and the outer ring is fixedly connected with the wall surface of the groove, so that the corresponding end of the transmission shaft 5 and the third flange 13 can be relatively and rotatably and fixedly connected; it should be noted that, in this embodiment, the third flange 13 may also be regarded as a protective cover plate, which may serve the purpose of protecting the second gear 4 and the transmission shaft 5.
The middle part of the transmission shaft 5 is sleeved with a second flange plate 12, one side surface of the second flange plate 12 is close to the second gear 4, the other side surface of the second flange plate is far away from the second gear 4, a second single-row deep groove ball bearing 18 is sleeved on the middle part of the transmission shaft 5 and is connected with the second flange plate 12 through the second single-row deep groove ball bearing 18, an inner ring of the second single-row deep groove ball bearing 18 is fixedly connected with the middle wall surface of the transmission shaft 5, and an outer ring of the second single-row deep groove ball bearing 18 is fixedly connected with the second flange plate 12, so that the transmission shaft 5 and the second flange plate 12 can be relatively and rotatably fixedly connected; in addition, a side surface of the second flange 12, which is close to the second gear 4, is detachably and fixedly connected with a side surface of the third flange 13, which is close to the second gear 4, through a locking member, and in the embodiment, the locking member is a fourth screw 25; meanwhile, the second flange plate 12 can also be mutually matched with the third flange plate 13 to play a certain role in protecting the second gear 4 and the transmission shaft 5; in the present embodiment, the output shaft 2 of the motor 1 extends through the third flange 13 to the middle of the third flange 13 and the second flange 12, and the first gear 3 is also located between the third flange 13 and the second flange 12, so that the third flange 13 and the second flange 12 can also protect the first gear 3.
A planet carrier 14 is arranged on one side surface of the second flange plate 12 far away from the second gear 4, and one end of the planet carrier 14 close to the second flange plate 12 is detachably and fixedly connected with the second flange plate 12 through a locking member, wherein in the embodiment, the locking member is a third screw 24; a cavity 15 is arranged in one end of the planet carrier 14 close to the second flange plate 12, one end of the transmission shaft 5 far away from the second gear 4 penetrates through the second flange plate 12 and extends into the cavity 15, and it is to be noted that corresponding avoidance holes are arranged on the planet carrier 14 so that the corresponding ends of the transmission shaft 5 can pass through and extend into the cavity 15; the end part of one end of the transmission shaft 5 positioned in the cavity 15 is fixedly provided with a sun gear 6, the rotation axis of the sun gear 6 coincides with the axis of the transmission shaft 5, a central shaft 16 is arranged in a fixed frame in the cavity 15, the central shaft 16 is positioned above the sun gear 6, the axis of the central shaft 16 is parallel to the axis of the transmission shaft 5, the central shaft 16 is provided with a planet wheel 7, and the planet wheel 7 is rotatably and fixedly connected with the central shaft 16 through a needle bearing 21, so that the planet wheel 7 can rotate on the central shaft 16; the sun gear 6 is externally meshed with the planet gears 7, so that when the transmission shaft 5 rotates, the sun gear 6 is driven to rotate, and the planet gears 7 are driven to rotate; here, the upper part of the chamber 15 is likewise provided with a relief opening, so that the lower part of the planet wheel 7 extends into the chamber 15 and over the planet carrier 14, which is only necessary for a reasonable setting of the position of the central shaft 16.
The outer wall of the planet carrier 14 is sleeved with an inner gear ring 8, one end of the inner gear ring 8 is close to the second flange plate 12, the other end of the inner gear ring 8 is far away from the second flange plate 12, the inner wall of one end of the inner gear ring 8 close to the second flange plate 12 is connected with the outer wall of the planet carrier 14 through a third single-row deep groove ball bearing 19, the inner ring of the third single-row deep groove ball bearing 19 is fixedly sleeved on the planet carrier 14, the outer ring is fixedly connected with the inner wall of the corresponding end of the inner gear ring 8, and the outer teeth of the planet gears 7 are meshed with the inner teeth of the inner gear ring 8, so that the inner gear ring 8 can be driven to rotate when the planet gears 7 rotate.
The planet carrier 14 is provided with a first flange 9 in a sleeved mode at one end, far away from the second flange 12, of the planet carrier 14, the first flange 9 is connected with the planet carrier 14 through a fourth single-row deep groove ball bearing 20, an inner ring of the fourth single-row deep groove ball bearing 20 is fixedly sleeved on a corresponding end of the planet carrier 14, an outer ring of the fourth single-row deep groove ball bearing 20 is fixedly connected with the first flange 9, the first flange 9 is fixedly connected with one end, far away from the second flange 12, of the inner gear ring 8 through a locking piece, in the embodiment, the locking piece is a first screw 22, and therefore the first flange 9 synchronously rotates when the inner gear ring 8 rotates.
The outer wall of the inner gear ring 8 is sleeved with a protection cylinder 10 which is fixedly connected with the first flange plate 9 and the inner gear ring 8 through a locking piece, in the embodiment, the locking piece is a second screw 23, so that the inner gear ring 8 can be stable in rotation, and the protection cylinder 10 can synchronously rotate when the inner gear ring 8 rotates; in this embodiment, the outer wall of the protection cylinder 10 is fixedly sleeved with the rubber coating wheel 11, and the rubber coating wheel 11 cooperates with external equipment, so that the protection cylinder 10 can drive the rubber coating wheel 11 to work.
The working mode of the hub speed reducer in the embodiment is as follows: the first gear 3 is driven to rotate through the motor 1, the second gear 4 is driven to rotate through gear engagement, the transmission shaft 5 is driven to rotate, the sun wheel 6 rotates along with the rotation, the planet wheel 7 is driven to rotate, the inner gear ring 8 is driven to rotate through the planet wheel 7, and the rubber coating wheel 11 is driven to rotate.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The utility model provides a wheel hub speed reducer which characterized in that: including motor (1), transmission shaft (5), planet wheel (7) and planet carrier (14), wherein motor (1) output cover is equipped with first gear (3), transmission shaft (5) one end cover is equipped with second gear (4) just second gear (4) with first gear (3) external engagement, the other end connection is equipped with sun gear (6) just sun gear (6) with planet wheel (7) external engagement, planet carrier (14) one end inside is equipped with cavity (15), planet wheel (7) are located cavity (15) and with planet carrier (14) rotatable coupling, planet carrier (14) outer wall cover is equipped with rotatable ring gear (8), just ring gear (8) with planet wheel (7) internal engagement, ring gear (8) outer wall cover is equipped with rubber coating wheel (11) with external equipment cooperation work.
2. A hub reduction gear as defined in claim 1, wherein: the planet carrier (14) is far away from the rotatable fixed cover of one end of cavity (15) is equipped with first ring flange (9), ring gear (8) one end with planet carrier (14) are kept away from the rotatable fixed connection of one end of first ring flange (9), the other end pass through the retaining member with the detachable fixed connection of first ring flange (9), transmission shaft (5) are close to rotatable fixed cover is equipped with second ring flange (12) on one end of sun gear (6), ring gear (8) are close to the one end inner wall of second ring flange (12) through third list deep groove ball bearing (19) with planet carrier (14) external wall connection, the inner circle fixed cover of third list deep groove ball bearing (19) is established on planet carrier (14), outer lane with ring gear (8) corresponding end inner wall fixed connection.
3. A hub reduction gear as defined in claim 2, wherein: the inner gear ring (8) is sleeved with a protection cylinder (10), the rubber coating wheel (11) is sleeved on the outer wall of the protection cylinder (10) and fixedly connected with the protection cylinder, and one end of the inner wall of the protection cylinder (10) is detachably and fixedly connected with the first flange plate (9) through a locking piece.
4. A hub reduction gear as defined in claim 1, wherein: the inner fixing frame of the cavity (15) is provided with a central shaft (16), the axis of the central shaft (16) is parallel to the axis of the transmission shaft (5), the planet wheel (7) is rotatably and fixedly sleeved on the central shaft (16), and one end of the transmission shaft (5) fixedly provided with the sun wheel (6) is positioned in the cavity (15) and does not interfere with the planet carrier (14).
5. A hub reduction gear as claimed in claim 3, wherein: one side surface of the second flange plate (12) is detachably and fixedly connected with one end, far away from the first flange plate (9), of the planet carrier (14) through a locking piece, and the other side surface of the second flange plate is far away from the planet carrier (14).
6. A hub reduction gear as defined in claim 5, wherein: the novel planetary gear rack is characterized by further comprising a third flange plate (13), a groove is formed in the center of one side face of the third flange plate (13), one end of the second gear (4) is inserted into the groove and is fixedly connected with the third flange plate (13) in a rotatable mode, one side face of the third flange plate (13) provided with the groove is detachably and fixedly connected with one side face of the second flange plate (12) away from the planet carrier (14) through a locking piece, and the other side face of the second flange plate is abutted to a machine body of the motor (1).
7. A hub reduction gear as defined in claim 6, wherein: each locking piece is a locking screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321713438.5U CN220748942U (en) | 2023-06-30 | 2023-06-30 | Hub speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321713438.5U CN220748942U (en) | 2023-06-30 | 2023-06-30 | Hub speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220748942U true CN220748942U (en) | 2024-04-09 |
Family
ID=90562901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321713438.5U Active CN220748942U (en) | 2023-06-30 | 2023-06-30 | Hub speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220748942U (en) |
-
2023
- 2023-06-30 CN CN202321713438.5U patent/CN220748942U/en active Active
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