CN210479918U - Planetary gear reducer and external electric roller - Google Patents
Planetary gear reducer and external electric roller Download PDFInfo
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- CN210479918U CN210479918U CN201921474866.0U CN201921474866U CN210479918U CN 210479918 U CN210479918 U CN 210479918U CN 201921474866 U CN201921474866 U CN 201921474866U CN 210479918 U CN210479918 U CN 210479918U
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Abstract
The utility model discloses a planetary gear reducer and an external electric roller adopting the planetary gear reducer, which reduces the volume of the reducer by optimizing a planetary gear transmission structure in the reducer; and by means of the structural characteristics of the speed reducer, the connection mode and the transmission structure among the roller, the motor and the speed reducer are simplified, the overall structure of the electric roller is simpler, and the problems that the existing electric roller is complex in structure, needs to consume a large amount of oil liquid to cool and is inconvenient to maintain are solved.
Description
Technical Field
The utility model relates to an electric cylinder technical field, in particular to planetary gear reducer and adopt this planetary gear reducer's external electric cylinder.
Background
In recent years, electric drums have been widely used in fields such as mining, metallurgy, chemical industry, coal, building materials, electric power, transportation, and the like, as power for equipment such as belt conveyors and lifts. The electric roller is one of the important forms of power source of the belt conveyor, and is mainly used for driving the belt of the belt conveyor to rotate so as to play a role in conveying materials.
The existing electric roller is usually in two structural forms of an external motor or an internal motor, a left shaft structure and a right shaft structure are usually adopted on a transmission structure of the roller, and the right shaft is connected with a gearbox to drive a roller body of the roller to rotate. The existing external electric roller structure is generally characterized in that a shaft coupler is sleeved on a motor to drive a transmission shaft to rotate, the transmission shaft drives a roller body to rotate through a speed change gear set, and the whole speed change gear set is arranged inside the roller body; the difference lies in that the motor in the built-in electric roller is arranged in the roller body, and the engine oil in the roller body is used for cooling the motor and lubricating the gear; the motor in the external electric roller is arranged outside the roller body and adopts a vertical motor, and the gear in the roller is lubricated by engine oil. Therefore, no matter the structure is an external structure or an internal structure, because the internal space of the roller cylinder is large, a large amount of engine oil is often required to be filled in the cylinder to cool the motor and lubricate the gear; generally, a roller with the diameter of 500mm and the length of 1000mm needs to be filled with 80 liters of engine oil, and the engine oil needs to be replaced once in 6 months at most, so that the use cost of the roller is greatly increased, the waste engine oil has great pollution to the environment, and the recycling cost is high. Meanwhile, the speed change gear set of the electric roller is completely arranged inside the roller, so that the electric roller is pulled out from the belt for maintenance after the belt tensioning device needs to be loosened during maintenance, the maintenance is inconvenient, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to solve the technical problems in the prior art, and provide a planetary gear reducer suitable for an external electric roller, and an external electric roller adopting the planetary gear reducer, and the size of the reducer is reduced by optimizing the planetary gear transmission structure; and by means of the structural characteristics of the speed reducer, the connection mode among the roller, the motor and the speed reducer is simplified, the transmission structure among the motor, the speed reducer and the roller is optimized, the overall structure of the electric roller is simpler, and the problems that a large amount of oil needs to be consumed for cooling and the maintenance is inconvenient are solved.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a planetary gear reducer comprises a base, end covers arranged on two sides of the base, an input shaft, an output shaft, a first planetary assembly and a second planetary assembly, wherein a transmission shaft is horizontally arranged in the base and is rotatably connected with the base through a bearing;
the first planetary assembly comprises a first central wheel, a first planetary wheel, a first inner gear ring and a first planetary frame, the first central wheel is fixedly sleeved on the input shaft, the first inner gear ring is fixedly arranged on the base, the first planetary wheel is arranged between the first inner gear ring and the first central wheel and is respectively meshed with the first inner gear ring and the first central wheel, a first transmission pin is arranged on the first planetary wheel, one end of the first planetary frame is fixedly sleeved on the transmission shaft, and the other end of the first planetary frame is sleeved on the first transmission pin and is rotationally connected with the first transmission pin;
the second planetary assembly comprises a second central wheel, a second planetary wheel, a second inner gear ring and a second planetary carrier, the second central wheel is fixedly sleeved on the transmission shaft, the second inner gear ring is fixedly arranged on the base, the second planetary wheel is arranged between the second inner gear ring and the second central wheel and is respectively meshed with the second inner gear ring and the second central wheel, a second transmission pin is arranged on the second planetary wheel, one end of the second planetary carrier is sleeved on the second transmission pin and is rotatably connected with the second transmission pin, and the other end of the second planetary carrier is fixedly sleeved on the output shaft.
In the above technical scheme, further, a connecting seat is fixedly arranged in the base, the connecting seat is arranged on the inner wall of the base, connecting plates are respectively arranged at the outer edges of the first inner gear ring and the second inner gear ring, and the first inner gear ring and the second inner gear ring are respectively fixedly arranged on the end surfaces of the left end and the right end of the connecting seat through the connecting plates.
Among the above-mentioned technical scheme, furtherly, be provided with the supporting seat on the connecting seat, supporting seat one end is fixed to be set up on the connecting seat, and the other end is fixed and is provided with the bearing housing, the transmission shaft sets up in the bearing housing, and is connected through the bearing between the bearing housing.
In the above technical scheme, further, the number of the first planet gears and the second planet gears is three, and the first planet gears and the second planet gears are respectively and uniformly distributed on the first planet carrier and the second planet carrier.
In the above technical scheme, further, the first transmission pin is connected with the first planet wheel, and the second transmission pin is connected with the second planet wheel through bearings.
Through carrying out the optimal design to the planetary gear drive structure among the planetary gear speed reducer, the connection between the planetary gear drive structure is compacter, has reduced the whole volume size of speed reducer greatly, makes it can be applied to external motorized pulley's speed reduction and transmission well.
The transmission shaft is arranged in the speed reducer to realize transmission between the first planet wheel and the second planet wheel, so that the connection among the first planet carrier, the second planet carrier and the transmission shaft in the speed reducer and the arrangement of the first planet carrier, the second planet carrier and the transmission shaft in the base are simpler, the integral structure of the speed reducer is simpler, and the installation and the maintenance of the speed reducer are facilitated.
Combine above-mentioned planetary gear reducer, the utility model discloses in still relate to an external motorized pulley who adopts above-mentioned planetary gear reducer, the technical scheme of adoption as follows:
an external electric roller comprises a roller, a speed reducer and a motor, wherein the speed reducer and the motor are sequentially arranged on one side of the roller;
the speed reducer comprises a base, a left end cover and a right end cover which are arranged on two sides of the base, a first planetary assembly and a second planetary assembly, wherein a transmission shaft is horizontally arranged in the base, the transmission shaft is rotatably connected with the base through a bearing, and the first planetary assembly and the second planetary assembly are arranged in the base and are respectively positioned on two sides of the transmission shaft;
the motor rotating shaft penetrates through the right end cover and extends into the base, the motor rotating shaft is connected with the first planetary assembly and drives the first planetary assembly to move in the base, the first planetary assembly is connected with one end of the transmission shaft and drives the transmission shaft to rotate, the other end of the transmission shaft is connected with the second planetary assembly and drives the second planetary assembly to move in the base, a bearing seat is arranged at one end of the roller rotating shaft, the other end of the roller rotating shaft extends into the left end cover and is connected with the left end cover through a bearing, one end of the roller rotating shaft extending into the left end cover is connected with the second planetary assembly, and the roller rotating shaft is driven to rotate when the second planetary assembly moves; the motor rotating shaft, the transmission shaft and the roller rotating shaft are positioned on the same axis.
In the above technical solution, further, the first planetary assembly includes a first center wheel, a first planet wheel, a first inner gear ring and a first planet carrier, the first center wheel is fixedly sleeved on the motor shaft, the first inner gear ring is fixedly disposed on the base, the first planet wheel is disposed between the first inner gear ring and the first center wheel and respectively engaged with the first inner gear ring and the first center wheel, a first transmission pin is disposed on the first planet wheel, one end of the first planet carrier is fixedly sleeved on the transmission shaft, and the other end of the first planet carrier is sleeved on the first transmission pin and rotatably connected with the first transmission pin;
the second planet assembly comprises a second central wheel, a second planet wheel, a second inner gear ring and a second planet carrier, the second central wheel is fixedly sleeved at the other end of the transmission shaft, the second inner gear ring is fixedly arranged on the base, the second planet wheel is arranged between the second inner gear ring and the second central wheel and is respectively meshed with the second inner gear ring and the second central wheel, a second transmission pin is arranged on the second planet wheel, one end of the second planet carrier is sleeved on the second transmission pin and is rotatably connected with the second transmission pin, and the other end of the second planet carrier is fixedly sleeved on the rotary shaft of the roller.
Among the above-mentioned technical scheme, further, right-hand member lid one end fixed connection is on the frame, and other end fixed connection is on the motor, is connected through the bearing between motor shaft and the right-hand member lid.
Among the above-mentioned technical scheme, furtherly, the left end lid is tubaeform cross-section structure, including horizontal part and opening, opening end face fixed connection is on the frame, is provided with the bearing group in the horizontal part, passes through the bearing group link between cylinder pivot and the left end lid.
The utility model discloses the beneficial effect that external motorized pulley had does:
1) the motor and the speed reducer are arranged outside the roller, so that the problem that the motor and the speed reducer are cooled by a large amount of oil liquid in the conventional electric roller is solved, and the maintenance of each part of the electric roller is more convenient;
2) based on the structural characteristics of the planetary gear reducer, the motor rotating shaft and the roller rotating shaft can be directly connected with the reducer and respectively used as an input shaft and an output shaft of the reducer, so that the transmission among the motor, the reducer and the roller is more stable and reliable; meanwhile, the motor and the speed reducer and the roller and the speed reducer are connected without adopting additional couplers, so that the integral structure of the motorized roller is further simplified.
Drawings
Fig. 1 is the schematic structural diagram of the planetary gear reducer of the present invention.
Fig. 2 is a schematic view of the external electric roller of the present invention.
In the figure: 101. the device comprises a base 102, an end cover 103, an input shaft 104, an output shaft 105, a transmission shaft 106, a connecting seat 107, a connecting plate 108, a supporting seat 109, a bearing sleeve 110 and a bearing;
201. a first center wheel, 202, a first planet wheel, 203, a first ring gear, 204, a first planet carrier, 205, a first driving pin;
301. a second central wheel 302, a second planet wheel 303, a second inner gear ring 304, a second planet carrier 341, a connecting sleeve 342, a connecting lantern ring 305 and a second transmission pin;
401. the device comprises a motor 411, a motor rotating shaft 402, a roller 421, a roller rotating shaft 422, a connecting disc 423, a cylinder 403, a speed reducer 431, a left end cover 432, a right end cover 433, a horizontal part 434, an opening part 404 and a bearing seat.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1, the planetary gear reducer in this embodiment includes a base 101, end covers 102 disposed at two sides of the base, an input shaft 103, an output shaft 104, a first planetary assembly and a second planetary assembly, wherein a transmission shaft 105 is horizontally disposed in the base 101, the transmission shaft 105 is rotatably connected with the base through a bearing 110, and the transmission shaft is located on a central axis of the base; the first planetary assembly and the second planetary assembly are arranged in the base 101 and are respectively located on two sides of the transmission shaft, the input shaft 103 and the output shaft 104 are respectively arranged on the end covers 102 on two sides and are respectively connected with the end covers 102 through bearings 110, and the input shaft 103, the transmission shaft 105 and the output shaft 104 are located on the same axis.
The first planetary assembly comprises a first central wheel 201, a first planet wheel 202, a first inner gear ring 203 and a first planet carrier 204, wherein the first central wheel 201 is fixedly sleeved on the input shaft 103 and is connected with the input shaft in a key mode; the first ring gear 203 is fixedly arranged on the base 101, the input shaft extends into the base to enable the first central wheel to be positioned in the first ring gear, the first planet wheel 202 is arranged between the first ring gear 203 and the first central wheel 201 and is respectively meshed with the first ring gear 203 and the first central wheel 201, the first planet wheel 202 is provided with a first transmission pin 206, one end of the first planet carrier 204 is fixedly sleeved on the transmission shaft 105, and the other end of the first planet carrier is sleeved on the first transmission pin 206 and is in rotational connection with the first transmission pin.
The input shaft drives the first central wheel to rotate, the first central wheel drives the first planet wheel to do circular motion in the first inner gear ring along the inner circumference of the first inner gear ring when rotating, and the first planet wheel drives the transmission shaft to rotate on the rack through the first planet carrier when moving.
The second planetary assembly comprises a second central wheel 301, a second planetary wheel 302, a second ring gear 303 and a second planetary carrier 304, the second central wheel 301 is fixedly sleeved at the other end of the transmission shaft 105, the second ring gear 303 is fixedly arranged on the base 101, the transmission shaft extends into the second ring gear to enable the second central wheel to be positioned in the second ring gear, the second planetary wheel 302 is arranged between the second ring gear 303 and the second central wheel 301 and respectively meshed with the second ring gear 303 and the second central wheel 301, a second transmission pin 305 is arranged on the second planetary wheel 302, one end of the second planetary carrier 304 is sleeved on the second transmission pin 305 and is rotatably connected with the second transmission pin 305, and the other end of the second planetary carrier is fixedly sleeved on the output shaft 103 and is connected with the output shaft in a key mode.
The input shaft drives the transmission shaft to rotate through the first planetary assembly when rotating, the transmission shaft drives the second central wheel to rotate when rotating, the second central wheel drives the second planetary wheel to do circular motion in the second inner gear ring along the inner circumference of the second inner gear ring when rotating, and the second planetary wheel drives the output shaft to rotate through the second planetary carrier when rotating, so that the transmission between the input shaft and the output shaft is realized.
In this embodiment, a connecting seat 106 is fixedly disposed in the base 101, the connecting seat 106 is disposed on an inner wall of the base, connecting plates 107 are disposed at outer edges of the first inner gear ring 203 and the second inner gear ring 303, respectively, and the first inner gear ring 203 and the second inner gear ring 303 are fixedly disposed on end surfaces of left and right ends of the connecting seat through the connecting plates 107, respectively. The connecting seat is arranged in the base, so that the first inner gear ring and the second inner gear ring are connected on the base, and the first inner gear ring and the second inner gear ring are oppositely arranged on two sides of the base, so that the base is simpler in structure, and meanwhile, the fixed installation of the first inner gear ring and the second inner gear ring on the base is simplified.
The support seat 108 is arranged on the connection seat 106, one end of the support seat 108 is fixedly arranged on the connection seat 106, the other end of the support seat 108 is fixedly provided with the bearing sleeve 109, the transmission shaft is arranged in the bearing sleeve 109 and is connected with the bearing sleeve through a bearing, the transmission shaft is rotatably connected in the base, and at the moment, the first planetary assembly and the second planetary assembly are respectively positioned on two sides of the support seat.
In this embodiment, the connection structures on the first planet carrier 204, which connect the transmission shaft and the first planet gears respectively, are inclined connecting rod cross-sectional structures, where the inclined connecting rod cross-sectional structures may be one or more according to the number of the first planet gears, and the inclined connecting rod cross-sectional structures are uniformly distributed along the circumferential direction at one end of the transmission shaft. The first planet carrier is used for connecting the first planet wheel and the transmission shaft, transmitting the circular motion of the first planet wheel to the transmission shaft and driving the transmission shaft to rotate. Specifically, two ends of a connecting structure of the first planet carrier are respectively provided with a horizontal sleeve, one sleeve at one end is sleeved on the first transmission pin, and the other sleeve at the other end is sleeved on one end of the transmission shaft and is in key connection with the transmission shaft, so that transmission connection between the first planet wheel and the transmission shaft is realized; the inclined connecting rod section structure of the first planet carrier enables the first planet assembly to have the advantages of being simple and compact in structure and stable in transmission.
In this embodiment, the second planet carrier functions substantially the same as the first planet carrier, and both structures are substantially the same, and includes a connection sleeve 341 and one or more connection sleeve rings 342 disposed on the outer edge of the connection sleeve, the number of the connection sleeve rings is the same as the number of the second planet gears, the connection sleeve rings are uniformly disposed along the outer circumference of the connection sleeve, the connection sleeve 304 is sleeved on the output shaft 104 and is in key connection with the output shaft, and the connection sleeve ring 342 is sleeved on the second transmission pin 305. The second planet carrier is used for connecting the second planet wheel and the output shaft, transmitting the circular motion of the second planet wheel to the output shaft and driving the output shaft to rotate; also, the second planet carrier is arranged to enable the second planet component to have the characteristics of simple and compact structure and stable transmission.
Preferably, the number of the first planet gears 202 and the second planet gears 302 is three, and the first planet gears 202 and the second planet gears 302 are respectively and uniformly distributed on the outer circumferences of the first planet carrier 204 and the second planet carrier 304. At the moment, three inclined connecting rod section structures are uniformly distributed on the first planet carrier along the outer circumference direction of the sleeve, and the other end of each inclined connecting rod section structure is connected with the sleeve respectively and is used for being connected with the three first planet gears respectively; similarly, three connecting lantern rings are uniformly distributed on the second planet carrier along the outer edge of the connecting sleeve and are respectively connected with the three second planet wheels; the planet wheels are arranged into three or more parts for improving the stability of the operation of the planet assembly. Of course, here the number of first planet wheel, second planet wheel is not limited to three, can set up as required to one, two, four or more, all is in the scope of the utility model to the change of planet wheel quantity on the basis of planet subassembly function.
Preferably, the first transmission pin 205 and the first planet wheel 202 and the second transmission pin 305 and the second planet wheel 302 are connected through the bearing 110.
Through carrying out the optimal design to the planetary gear drive structure among the planetary gear speed reducer, the input of speed reducer, output and transmission connection structure are simpler, and the connection between the planetary gear drive structure is compacter, has reduced the whole volume size of speed reducer greatly, makes its speed reduction and the transmission that can be applied to external motorized pulley well.
Example two
With reference to the planetary gear reducer in the above embodiment, the present invention also relates to an external motorized pulley using the planetary gear reducer, and the structure of the external motorized pulley is described in detail with reference to the following specific embodiments.
As shown in fig. 2, the external motorized roller in this embodiment includes a roller 402, a speed reducer 403 and a motor 401 sequentially disposed on one side of the roller.
The roller 402 in this embodiment includes a roller shaft 421, a flange 422 and a cylinder 423, the flange 422 is sleeved on the roller shaft 421 and is connected with the roller shaft by a key, and the outer edge of the flange 422 is welded to the inner wall of the cylinder, so as to realize the rotation drive of the roller shaft to the cylinder.
The structure of the speed reducer refers to the structure in the first embodiment, and as shown in fig. 1 and 2 in particular, the speed reducer 403 includes a base 101, a left end cover 431 and a right end cover 432 disposed on both sides of the base, a first planetary assembly and a second planetary assembly, wherein a transmission shaft 105 is horizontally disposed in the base 101, the transmission shaft 105 is rotatably connected with the base 101 through a bearing, so that the transmission shaft rotates in the base along an axis thereof, and the first planetary assembly and the second planetary assembly are disposed in the base 101 and located on both sides of the transmission shaft 105 respectively.
Preferably, as shown in fig. 1, the first planetary assembly includes a first central gear 201, a first planet gear 202, a first ring gear 203, and a first carrier 204, the first central gear 201 is fixedly sleeved on the motor shaft 411, the first ring gear 203 is fixedly disposed on the base, the first planet gear 202 is disposed between the first ring gear 203 and the first central gear 201 and respectively engaged with the first ring gear 203 and the first central gear 201, the first planet gear 202 is provided with a first transmission pin 205, one end of the first carrier 204 is fixedly sleeved on the transmission shaft 105, and the other end of the first carrier 204 is sleeved on the first transmission pin 205 and is rotatably connected with the first transmission pin.
The second planetary assembly comprises a second central wheel 301, a second planetary gear 302, a second ring gear 303 and a second planetary carrier 304, the second central wheel 301 is fixedly sleeved at the other end of the transmission shaft 105, the second ring gear 303 is fixedly arranged on the base, the second planetary gear 302 is arranged between the second ring gear 303 and the second central wheel 301 and is respectively meshed with the second ring gear and the second central wheel, a second transmission pin 305 is arranged on the second planetary gear 302, one end of the second planetary carrier 304 is sleeved on the second transmission pin 305 and is rotatably connected with the second transmission pin, and the other end of the second planetary carrier is fixedly sleeved on the rotary shaft 421 of the rotary drum.
Based on the structure of the planetary gear reducer, the motor rotating shaft and the roller rotating shaft can be directly connected with the reducer and can be respectively used as an input shaft and an output shaft of the reducer, so that the transmission among the motor, the reducer and the roller is more stable and reliable; meanwhile, the motor and the speed reducer and the roller and the speed reducer are connected without adopting additional couplers, so that the integral structure of the motorized roller is further simplified. Here, the driving process of the motor to the drum through the speed reducer is the same as the driving process between the input shaft and the output shaft in the speed reducer, and details are not repeated here.
In this embodiment, one end of the right end cover 432 is fixedly connected to the base 101, the other end is fixedly connected to the motor 401, and the motor shaft 411 is connected to the right end cover 432 through a bearing. At the moment, the right end cover is used as a part of the motor and a part of the speed reducer, and can also play a role in connecting the speed reducer and the motor, so that the whole structure of the electric roller is more compact; the right end cover can refer to the structure of the right end cover of the engine base in fig. 1.
In this embodiment, the left end cover 431 is a trumpet-shaped cross-section structure, and includes horizontal part 433 and opening 434, opening 434 terminal surface fixed connection is on frame 101, is provided with the bearing group in the horizontal part 433, and here the bearing group is including setting up a plurality of bearings in the horizontal part side by side, passes through the bearing group link between cylinder pivot and the left end cover, realizes the stable connection and the support to the cylinder. The left end cover is used as a part of the speed reducer, simultaneously plays a role of a bearing seat, supports and installs the roller, and also plays a role of enabling the whole structure of the electric roller to be more compact; the specific structure of the left end cover can refer to the structure of the left end cover of the engine base in fig. 1.
Similarly, in this embodiment, a connecting seat 106 is fixedly disposed in the base 101, the connecting seat 106 is disposed on an inner wall of the base, the outer edges of the first inner gear ring 203 and the second inner gear ring 303 are respectively provided with a connecting plate 107, and the first inner gear ring 203 and the second inner gear ring 303 are respectively fixedly disposed on end surfaces of left and right ends of the connecting seat through the connecting plates 107.
The connecting base 106 is provided with a supporting base 108, one end of the supporting base 108 is fixedly arranged on the connecting base 106, the other end of the supporting base 108 is fixedly provided with a bearing sleeve 109, and the transmission shaft is arranged in the bearing sleeve 109 and is connected with the bearing sleeve through a bearing, so that the transmission shaft is rotatably connected in the base.
In this embodiment, the connection structures on the first planet carrier 204, which connect the transmission shaft and the first planet gears respectively, are inclined connecting rod cross-sectional structures, where the inclined connecting rod cross-sectional structures may be one or more according to the number of the first planet gears, and the inclined connecting rod cross-sectional structures are uniformly distributed along the circumferential direction at one end of the transmission shaft. The first planet carrier is used for connecting the first planet wheel and the transmission shaft, transmitting the circular motion of the first planet wheel to the transmission shaft and driving the transmission shaft to rotate.
In this embodiment, the second planet carrier functions substantially the same as the first planet carrier, and both structures are substantially the same, and includes a connection sleeve 341 and one or more connection sleeve rings 342 disposed on the outer edge of the connection sleeve, the number of the connection sleeve rings is the same as the number of the second planet gears, the connection sleeve rings are uniformly disposed along the outer circumference of the connection sleeve, the connection sleeve 304 is sleeved on the drum rotating shaft 421 and is in key connection with the drum rotating shaft, and the connection sleeve ring 342 is sleeved on the second transmission pin 305. The second planet carrier is used for connecting the second planet wheel and the rotary shaft of the roller, transmitting the circular motion of the second planet wheel to the rotary shaft of the roller and driving the rotary shaft of the roller to rotate.
Preferably, the first transmission pin 205 and the first planet wheel 202 and the second transmission pin 305 and the second planet wheel 302 are connected through the bearing 110.
The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.
Claims (9)
1. A planetary gear reducer characterized in that: the planetary transmission mechanism comprises a base, end covers arranged on two sides of the base, an input shaft, an output shaft, a first planetary assembly and a second planetary assembly, wherein a transmission shaft is horizontally arranged in the base and is rotatably connected with the base through a bearing;
the first planetary assembly comprises a first central wheel, a first planetary wheel, a first inner gear ring and a first planetary frame, the first central wheel is fixedly sleeved on the input shaft, the first inner gear ring is fixedly arranged on the base, the first planetary wheel is arranged between the first inner gear ring and the first central wheel and is respectively meshed with the first inner gear ring and the first central wheel, a first transmission pin is arranged on the first planetary wheel, one end of the first planetary frame is fixedly sleeved on the transmission shaft, and the other end of the first planetary frame is sleeved on the first transmission pin and is rotationally connected with the first transmission pin;
the second planetary assembly comprises a second central wheel, a second planetary wheel, a second inner gear ring and a second planetary carrier, the second central wheel is fixedly sleeved on the transmission shaft, the second inner gear ring is fixedly arranged on the base, the second planetary wheel is arranged between the second inner gear ring and the second central wheel and is respectively meshed with the second inner gear ring and the second central wheel, a second transmission pin is arranged on the second planetary wheel, one end of the second planetary carrier is sleeved on the second transmission pin and is rotatably connected with the second transmission pin, and the other end of the second planetary carrier is fixedly sleeved on the output shaft.
2. The planetary gear reducer according to claim 1, wherein: the connecting seat is fixedly arranged in the machine seat and arranged on the inner wall of the machine seat, connecting plates are respectively arranged at the outer edges of the first inner gear ring and the second inner gear ring, and the first inner gear ring and the second inner gear ring are respectively fixedly arranged on the end surfaces of the left end and the right end of the connecting seat through the connecting plates.
3. The planetary gear reducer according to claim 2, wherein: the transmission shaft is arranged in the bearing sleeve and is connected with the bearing sleeve through a bearing.
4. The planetary gear reducer according to claim 1, wherein: the number of the first planet gears and the number of the second planet gears are three, and the first planet gears and the second planet gears are respectively and uniformly distributed on the first planet carrier and the second planet carrier.
5. The planetary gear reducer according to claim 1, wherein: the first transmission pin is connected with the first planet wheel, and the second transmission pin is connected with the second planet wheel through bearings.
6. An external motorized pulley, characterized in that: comprises a roller, a speed reducer and a motor which are arranged on one side of the roller in sequence;
the speed reducer comprises a base, a left end cover and a right end cover which are arranged on two sides of the base, a first planetary assembly and a second planetary assembly, wherein a transmission shaft is horizontally arranged in the base, the transmission shaft is rotatably connected with the base through a bearing, and the first planetary assembly and the second planetary assembly are arranged in the base and are respectively positioned on two sides of the transmission shaft;
the motor rotating shaft penetrates through the right end cover and extends into the base, the motor rotating shaft is connected with the first planetary assembly and drives the first planetary assembly to move in the base, the first planetary assembly is connected with one end of the transmission shaft and drives the transmission shaft to rotate, the other end of the transmission shaft is connected with the second planetary assembly and drives the second planetary assembly to move in the base, a bearing seat is arranged at one end of the roller rotating shaft, the other end of the roller rotating shaft extends into the left end cover and is connected with the left end cover through a bearing, one end of the roller rotating shaft extending into the left end cover is connected with the second planetary assembly, and the roller rotating shaft is driven to rotate when the second planetary assembly moves; the motor rotating shaft, the transmission shaft and the roller rotating shaft are positioned on the same axis.
7. The external motorized pulley of claim 6, wherein: the first planetary assembly comprises a first central wheel, a first planetary wheel, a first inner gear ring and a first planetary frame, the first central wheel is fixedly sleeved on a motor rotating shaft, the first inner gear ring is fixedly arranged on the base, the first planetary wheel is arranged between the first inner gear ring and the first central wheel and is respectively meshed with the first inner gear ring and the first central wheel, a first transmission pin is arranged on the first planetary wheel, one end of the first planetary frame is fixedly sleeved on the transmission shaft, and the other end of the first planetary frame is sleeved on the first transmission pin and is in rotating connection with the first transmission pin;
the second planet assembly comprises a second central wheel, a second planet wheel, a second inner gear ring and a second planet carrier, the second central wheel is fixedly sleeved at the other end of the transmission shaft, the second inner gear ring is fixedly arranged on the base, the second planet wheel is arranged between the second inner gear ring and the second central wheel and is respectively meshed with the second inner gear ring and the second central wheel, a second transmission pin is arranged on the second planet wheel, one end of the second planet carrier is sleeved on the second transmission pin and is rotatably connected with the second transmission pin, and the other end of the second planet carrier is fixedly sleeved on the rotary shaft of the roller.
8. The external motorized pulley of claim 6, wherein: one end of the right end cover is fixedly connected to the base, the other end of the right end cover is fixedly connected to the motor, and the rotating shaft of the motor is connected with the right end cover through a bearing.
9. The external motorized pulley of claim 6, wherein: the left end cover is of a horn-shaped cross section structure and comprises a horizontal part and an opening part, the end face of the opening part is fixedly connected to the base, a bearing group is arranged in the horizontal part, and the roller rotating shaft is connected with the left end cover through the bearing group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474866.0U CN210479918U (en) | 2019-09-05 | 2019-09-05 | Planetary gear reducer and external electric roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921474866.0U CN210479918U (en) | 2019-09-05 | 2019-09-05 | Planetary gear reducer and external electric roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210479918U true CN210479918U (en) | 2020-05-08 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921474866.0U Active CN210479918U (en) | 2019-09-05 | 2019-09-05 | Planetary gear reducer and external electric roller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451175A (en) * | 2019-09-05 | 2019-11-15 | 成都东德能机械设备制造有限公司 | A kind of planet-gear speed reducer and electric roller with external |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451175A (en) * | 2019-09-05 | 2019-11-15 | 成都东德能机械设备制造有限公司 | A kind of planet-gear speed reducer and electric roller with external |
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