Planetary variable-speed motor

Abstract

The utility model discloses a planetary variable-speed motor, which comprises a driving motor, a shell and an output rod, the driving motor is detachably connected with the shell, the end part of a transmission rod of the driving motor is provided with helical teeth, a planetary variable-speed structure is arranged in the shell, the transmission rod is linked with the planetary variable-speed structure through the helical teeth, and one end of the output rod, which is arranged in the shell, is a connecting part; a connecting rod is arranged on the connecting part, a planet wheel at one end of the planet speed change structure is arranged on the connecting rod, the output rod is in linkage with the planet speed change structure through the connecting rod, and helical teeth are arranged at the end of a transmission rod of the driving motor and directly meshed with the planet wheel in the planet speed change structure. A traditional mode that a sun gear is fixed through a transmission rod and a traditional mode that a planet gear is meshed are replaced, the output rod achieves linkage with the planet speed change structure through the connecting rod of the connecting part, transmission efficiency is improved and energy loss is reduced through direct meshing of helical teeth and the planet gear, and therefore the energy efficiency of the whole system is improved, the number of parts is reduced, and cost is reduced. And the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, concretely relates to a planetary gear motor. BACKGROUND

[0002] The planetary gear motor is a kind of precision transmission device, with the advantages of compact structure, large reduction ratio and high transmission efficiency, and has been widely applied in industrial field.The working principle of the planetary gear motor is similar to the motion of planets around the sun, and through the interaction of the sun gear, planetary gear and inner ring gear, the conversion from high-speed low-torque input to low-speed high-torque output is realized.

[0003] The Chinese utility model patent with publication number "CN218498954U" discloses a speed reducer motor, which comprises a motor, a gear ring sleeve connected and installed on the motor through a motor flange, an upper end cover fixedly installed at the top end of the gear ring sleeve, and a speed reduction mechanism installed in the gear ring sleeve; the speed reduction mechanism comprises three groups of planetary gear structures, the bottom two groups of planetary gear structures comprise a speed reduction planet carrier, three speed reduction planetary gears are connected and installed on the speed reduction planet carrier through three needle shafts, the top one group of planetary gear structures comprises a top layer planet carrier, three top layer planetary gears are connected and installed on the top layer planet carrier through three needle shafts, a sun gear is meshed and arranged between the inner sides of the speed reduction planetary gears and the top layer planetary gears, a gear ring is arranged on the inner side of the gear ring sleeve, and the outer sides of the speed reduction planetary gears and the top layer planetary gears are meshed with the gear ring; an output shaft is vertically installed on the top of the top layer planet carrier, and the output shaft rotates out of the upper end cover.

[0004] The above speed reducer motor has the following defects:

[0005] Firstly, the motor needs to be meshed with the planetary gear through the sun gear, and since the sun gear is hinged on the motor, once the transmission rod of the motor is loose, the sun gear cannot realize the linkage of the transmission rod of the motor, the speed reduction mechanism cannot effectively reduce the speed of the motor, and thus the speed reducer motor fails;

[0006] Secondly, a single gear ring sleeve is meshed with the planetary gear, and once the gear ring sleeve is broken or the rack is worn, the speed reduction capacity of the speed reduction mechanism will be greatly reduced, which cannot meet the normal speed reduction demand, the motor is too fast, and the speed reducer motor stalls.

[0007] Therefore, it is necessary to improve the above defects. UTILITY MODEL CONTENTS

[0008] The utility model discloses a planetary gear motor to solve the above problems existing in the prior art.

[0009] In order to achieve the above object, the utility model adopts the technical scheme: a planetary variable speed motor, including drive motor, shell and output rod, drive motor is detachably connected with shell, the shell is equipped with planetary variable speed structure, the transmission rod end of drive motor is equipped with bevel gear, the transmission rod is linked with planetary variable speed structure through bevel gear, the output rod is connected to one end of planetary variable speed structure far from drive motor, the one end of output rod in shell is the connecting portion, the connecting portion is equipped with connecting rod, one end of planetary variable speed structure is engaged with bevel gear, and the other end is detachably connected with connecting rod, and the output rod is linked with planetary variable speed structure through connecting rod.

[0010] Through adopting the above technical scheme: the transmission rod end of drive motor is equipped with bevel gear, and the bevel gear is directly engaged with the planetary gear in planetary variable speed structure, which replaces the mode that the transmission rod fixes the sun gear to be engaged with the planetary gear, and the connection of the transmission rod and the cardiovascular variable speed structure is more efficient and stable, and the output rod is linked with the planetary variable speed structure through the connecting rod of the connecting portion, the direct engagement of the bevel gear and the planetary gear can improve the transmission efficiency and reduce the energy loss, thereby improving the energy efficiency of the whole system, reducing the number of parts, reducing the noise and vibration in operation, and reducing the manufacturing cost.

[0011] The above-mentioned planetary variable speed motor can be further provided as: the planetary variable speed structure includes a first planetary gear set, a second planetary gear set and a third planetary gear set, a first inner ring gear is arranged outside the first planetary gear set, a second inner ring gear is arranged outside the second planetary gear set and the third planetary gear set, a first transmission plate is arranged between the first planetary gear set and the second planetary gear set, a first sun gear is integrally formed in the middle of the end face of the first transmission plate close to the second planetary gear set, a second transmission plate is arranged between the second planetary gear set and the third planetary gear set, a second sun gear is integrally formed in the middle of the end face of the second transmission plate close to the third planetary gear set, the first sun gear is engaged with the second planetary gear set, the second sun gear is engaged with the third planetary gear set, the first planetary gear set and the second planetary gear set are linked through the first sun gear on the first transmission plate, and the second planetary gear set and the third planetary gear set are linked through the second sun gear of the second transmission plate.

[0012] By adopting the technical scheme, three planetary gear sets are arranged to realize multi-stage reduction, which not only improves the reduction ratio and torque output, but also saves space and facilitates integration. Meanwhile, the meshing of the first sun gear and the second planetary gear set and the meshing of the second sun gear and the third planetary gear set realize efficient power transmission, and meanwhile, the stability and durability of the structure are enhanced. Precise speed control and reasonable distribution of load reduce the stress of individual gears and prolong the service life. In addition, the multi-stage planetary gear set reduces the noise and vibration generated during operation of the reduction motor, improves the running stability of the system, and is easy to maintain, has high torque density and strong adaptability, and can be applied to various working environments and load requirements.

[0013] The planetary variable speed motor can be further provided with a plurality of first fixing rods on the side of the first transmission plate close to the driving motor, the first fixing rods being integrally formed with the first transmission plate, the first planetary gear set being arranged on the first fixing rods, a plurality of second fixing rods on the side of the second transmission plate close to the first planetary gear set, the second fixing rods being integrally formed with the second transmission plate, the second planetary gear set being arranged on the second fixing rods, and the third planetary gear set being arranged on the connecting rod.

[0014] By adopting the technical scheme, the first planetary gear set is arranged on the first fixing rods on the first transmission plate, when the driving motor rotates, the first planetary gear set drives the first transmission plate to rotate and then drives the first sun gear to rotate, and then the first sun gear drives the second planetary gear set and the second fixing rods to rotate to finally drive the output rod to rotate, so that the overall structure of the reduction motor is compact and the torque output is stable.

[0015] The planetary variable speed motor can be further provided with a first accommodating cavity and a second accommodating cavity in the housing, the first inner ring gear being arranged in the first accommodating cavity, the housing being provided with a blocking block on the side of the first accommodating cavity close to the driving motor, the blocking block being provided with a rotating shaft hole for the transmission rod to pass through in the middle, a plurality of limiting grooves being formed on the side of the blocking block close to the first accommodating cavity, the first inner ring gear being provided with limiting blocks matched with the limiting grooves, the first inner ring gear being stably connected in the first accommodating cavity through the limiting blocks and the limiting grooves, the second inner ring gear being arranged in the second accommodating cavity, a plurality of clamping grooves being arranged in the second accommodating cavity, the second inner ring gear being provided with clamping blocks matched with the clamping grooves on the outer periphery, and the second inner ring gear being stably connected with the second accommodating cavity through the clamping blocks and the clamping grooves.

[0016] By adopting the above technical scheme: the resisting block can effectively prevent the first inner gear ring from being separated from the first accommodating cavity, and the second accommodating cavity has a larger inner diameter than the first accommodating cavity, the first accommodating cavity is misaligned with the second accommodating cavity at the edge, and the second inner gear ring will not collide with the first inner gear ring. In addition, the limiting groove opened on the side of the resisting block close to the first accommodating cavity is matched with the limiting block of the first inner gear ring, and the clamping groove on the inner wall of the second accommodating cavity is matched with the clamping block on the outer periphery of the second inner gear ring, so that the first inner gear ring will not rotate in the first accommodating cavity, and the second inner gear ring will not rotate in the second accommodating cavity, causing torque loss. The rotating shaft hole in the middle of the resisting block enables the transmission rod of the driving motor to be stably engaged with the first planetary gear set, improving the stability of the reduction motor.

[0017] The planetary variable speed motor can be further provided with a convex step on the first transmission plate, a first fixed rod arranged at the edge of the convex step, and a ring-shaped isolation protrusion arranged on the side of the first inner gear ring close to the first transmission plate, and the first inner gear ring is abutted against the first transmission plate through the ring-shaped isolation protrusion.

[0018] By adopting the above technical scheme: by arranging the convex step on the first transmission plate and placing the first fixed rod at the edge thereof, the stability and support of the structure are enhanced. At the same time, the first inner gear ring is abutted against the first transmission plate through the ring-shaped isolation protrusion, which not only improves the isolation effect, reduces friction and wear, but also optimizes the internal space layout, makes the motor more compact, improves the transmission efficiency, prolongs the service life, and thus improves the overall performance and reliability of the planetary variable speed motor.

[0019] The planetary variable speed motor can be further provided with a connecting hole opened on the outer periphery of the resisting block, a threading block arranged in the connecting hole, a plurality of threading holes penetratingly arranged on the threading block, a threading groove opened on the resisting block at the connecting hole, a bearing groove opened in the middle of the resisting block for accommodating a bearing, and a first bearing detachably connected with the transmission rod in the bearing groove.

[0020] By adopting the above technical scheme: the connecting hole and the threading block make the electrical connection of the reduction motor more convenient and the wiring can be effectively protected. At the same time, the first bearing in the bearing groove on the resisting block enhances the stability of the structure, and the detachable connection of the transmission rod and the first bearing simplifies the process of maintaining and replacing the bearing, improves the practicability and reliability of the motor.

[0021] The planetary variable speed motor can be further provided with an upper shell and a lower shell, a placing groove opened at the connection between the upper shell and the lower shell, a rubber ring arranged in the placing groove, a plurality of fixing blocks arranged on the outer periphery of the upper shell and the lower shell for fixing, a fixing hole opened on the fixing block, and a fixing bolt threadedly connected in the fixing hole, and a fixing washer arranged at the contact position between the fixing bolt and the end of the fixing hole.

[0022] By adopting the technical scheme, the split upper shell and lower shell make the shell convenient to assemble and disassemble, and the rubber ring arranged in the groove at the connecting position enhances the sealing performance and effectively prevents the invasion of external pollutants.

[0023] The planetary variable speed motor can be further provided with a plurality of mounting ears on the outer periphery of the lower shell, mounting bolts are arranged in the mounting ears, the lower shell comprises a transmission part, the transmission part is provided in stages, an output opening is formed in the middle of the transmission part, an output rod is arranged in the output opening, a containing groove is arranged above the output opening of the lower shell, an annular gasket is arranged in the containing groove, and a second bearing is arranged above the annular gasket.

[0024] By adopting the technical scheme, the mounting ears on the outer periphery of the lower shell and the mounting bolts arranged in the mounting ears achieve convenient installation and fixation of the speed reducer.

[0025] The planetary variable speed motor can be further provided with a plurality of mounting ears on the outer periphery of the lower shell, mounting bolts are arranged in the mounting ears, the lower shell comprises a transmission part, the transmission part is provided in stages, an output opening is formed in the middle of the transmission part, an output rod is arranged in the output opening, a containing groove is arranged above the output opening of the lower shell, an annular gasket is arranged in the containing groove, and a second bearing is arranged above the annular gasket.

[0026] By adopting the technical scheme, the mounting ears on the outer periphery of the lower shell and the mounting bolts arranged in the mounting ears achieve convenient installation and fixation of the speed reducer.

[0027] The utility model discloses the beneficial effect that:

[0028] First, the oblique tooth is arranged at the end of the transmission rod of the driving motor, and the oblique tooth is engaged with the planetary variable speed structure, compared with the traditional driving motor transmission rod which is engaged with the planetary variable speed structure through the connection sun gear, the direct engagement of the oblique tooth and the planetary gear improves the driving motor transmission efficiency, the connection of the driving motor and the planetary variable speed structure is more stable, and the driving motor, the planetary variable speed structure and the output rod are located on the same axis, the overall structure of the planetary variable speed motor is relatively simple, the volume is relatively small, and the planetary variable speed motor can be installed in different spaces.

[0029] Second, the planetary gear structure realizes the adjustment of the torque of the driving motor through three planetary gear sets and two transmission plates, the first sun gear and the second sun gear are integrally formed with the first transmission plate and the second transmission plate, the rotation of the first planetary gear set drives the rotation of the first sun gear on the transmission plate, and then the second planetary gear set meshing with the first sun gear rotates, the stability of the sun gear is significantly improved, the running stability of the system is improved, the maintenance of the reduction motor is simple, the high torque density and the adaptability are strong, and the reduction motor can be applied to various working environments and load requirements.

[0030] The utility model will be further explained in detail below in combination with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the whole structure schematic diagram of the planetary gear motor of the utility model;

[0032] Figure 2 It is the explosion schematic view of the planetary gear motor of the utility model;

[0033] Figure 3 It is the cross section schematic view of the planetary gear motor of the utility model;

[0034] Figure 4 It is the structure schematic diagram of the driving motor of the utility model;

[0035] Figure 5 It is the planetary gear structure schematic view of the utility model;

[0036] Figure 6 It is the separation schematic view of the planetary gear structure of the utility model;

[0037] Figure 7 It is the explosion schematic view of the shell structure of the utility model;

[0038] Figure 8 It is the cross section schematic view of the shell structure of the utility model;

[0039] Figure 9 It is the structure schematic diagram of the output rod of the utility model;

[0040] Label comment: drive motor 1, transmission rod 11, bevel gear 12, shell 2, planetary gear structure 21, first planetary gear set 211, second planetary gear set 212, third planetary gear set 213, first inner gear ring 22, limit block 221, annular isolation bump 222, second inner gear ring 23, clamping block 231, first transmission plate 24, first sun gear 241, first fixed rod 242, convex step 243, second transmission plate 25, second sun gear 251, second fixed rod 252, first accommodating cavity 26, second accommodating cavity 261, clamping groove 262, resistance block 27, shaft hole 271, limit groove 272, connecting hole 273, threading block 274, threading hole 275, threading groove 276, bearing groove 277, first bearing 278, upper shell 28, placing groove 281, rubber ring 282, fixed block 283, fixed hole 284, fixed bolt 285, fixed washer 286, lower shell 29, mounting ear 291, mounting bolt 292, transmission part 293, output opening 294, accommodating groove 295, annular washer 296, second bearing 297, output rod 3, connecting part 31, connecting rod 311, third bearing 32, baffle groove 33, elastic baffle 34, key groove 35. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0042] As Figures 1 to 9The illustrated planetary variable speed motor comprises a driving motor 1, a shell 2 and an output rod 3, the driving motor 1 is detachably connected with the shell 2, the end of a transmission rod 11 of the driving motor 1 is provided with a helical gear 12, the shell 2 is provided with a planetary variable speed structure 21, the transmission rod 11 is linked with the planetary variable speed structure 21 through the helical gear 12, the helical gear 12 is directly meshed with a planetary gear in the planetary variable speed structure 21, which replaces the traditional mode of using a primary sun gear fixed on the transmission rod 11 to realize meshing with the planetary gear, improves the transmission efficiency, and the linkage between the driving motor 1 and the planetary variable speed structure 21 is more stable, the output rod 3 is connected to one end of the planetary variable speed structure 21 away from the driving motor 1, one end of the output rod 3 provided in the shell 2 is a connecting part 31, the connecting part 31 is provided with a connecting rod 311, one end of the planetary variable speed structure 21 is meshed with the helical gear 12, and the other end is detachably connected with the connecting rod 311, the output rod 3 is linked with the planetary variable speed structure 21 through the connecting rod 311 on the connecting part 31, so as to improve the energy efficiency of the whole speed reducer, reduce the number of parts and the manufacturing cost. In addition, the driving motor 1, the planetary variable speed structure 21 and the output rod 3 are located on the same axis, which simplifies the structure of the whole speed reducer, reduces the noise and vibration during operation, can adapt to various working conditions and load requirements, reduces the maintenance difficulty and cost.

[0043] As Figure 2 , Figure 3 , Figure 5 , Figure 6The shown planetary gear structure 21 includes a first planetary gear set 211, a second planetary gear set 212 and a third planetary gear set 213, the first planetary gear set 211 is provided with a first inner ring gear 22 outside, the second planetary gear set 212 and the third planetary gear set 213 are provided with a second inner ring gear 23 outside, a first transmission plate 24 is provided between the first planetary gear set 211 and the second planetary gear set 212, the first transmission plate 24 is provided with a first sun gear 241 integrally formed at the middle of the end face close to the second planetary gear set 212, a second transmission plate 25 is provided between the second planetary gear set 212 and the third planetary gear set 213, the second transmission plate 25 is provided with a second sun gear 251 integrally formed at the middle of the end face close to the third planetary gear set 213, the first sun gear 241 is engaged with the second planetary gear set 212, the second sun gear 251 is engaged with the third planetary gear set 213, the first planetary gear set 211 and the second planetary gear set 212 are linked through the first sun gear 241 on the first transmission plate 24, and the second planetary gear set 212 and the third planetary gear set 213 are linked through the second sun gear 251 on the second transmission plate 25. By setting three planetary gear sets, multi-stage reduction is realized, not only the reduction ratio and torque output are improved, but also the space is saved, and integration is facilitated. At the same time, the engagement of the first sun gear 241 with the second planetary gear set 212 and the second sun gear 251 with the third planetary gear set 213 realizes efficient power transmission, and enhances the stability and durability of the structure. Precise speed control and reasonable distribution of load reduce the stress of individual gears and prolong the service life. In addition, the multi-stage planetary gear set reduces the noise and vibration generated during the operation of the reduction motor, improves the running stability of the system, and is easy to maintain, has high torque density and strong adaptability, and can be applied to various working environments and load requirements.

[0044] The first transmission plate 24 is provided with a plurality of first fixing rods 242 near the side of the driving motor 1, the first planetary gear set 211 is arranged on the first fixing rod 242, the second transmission plate 25 is provided with a plurality of second fixing rods 252 near the side of the first planetary gear set 211, the second planetary gear set 212 is arranged on the second fixing rod 252, and the third planetary gear set 213 is arranged on the connecting rod 311. The first fixing rod 242 is integrally formed with the first transmission plate 24, and the second fixing rod 252 is integrally formed with the second transmission plate 25. When the driving motor 1 rotates, the first planetary gear set 211 rotates around the helical gear 12, the first planetary gear set 211 drives the first transmission plate 24 to rotate through the first fixing rod 242, and then the first sun gear 241 rotates. Since the second planetary gear set 212 is engaged with the first sun gear 241, the second planetary gear set 212 rotates around the first sun gear 241, the second transmission plate 25 is driven to rotate by the second planetary gear set 212 through the second fixing rod 252, and the third planetary gear set 213 is engaged with the second sun gear 251. The third planetary gear set 213 rotates around the second sun gear 251. Since the output rod 3 is linked with the third planetary gear set 213 through the connecting rod 311, the output rod 3 is finally driven to rotate. The planetary variable speed motor has a compact overall structure, the internal parts can withstand high-strength operation, and the torque output is stable.

[0045] The shell 2 internally comprises a first accommodating cavity 26 and a second accommodating cavity 261, the first inner gear ring 22 is arranged in the first accommodating cavity 26, the shell 2 is provided with a blocking block 27 at the side of the first accommodating cavity 26 close to the driving motor 1, the blocking block 27 can effectively prevent the first inner gear ring 22 from being separated from the first accommodating cavity 26, a rotating shaft hole 271 is arranged in the middle of the blocking block 27 for the transmission rod 11 to pass through, so that the transmission rod 11 of the driving motor 1 can be stably engaged with the first planetary gear set 211, the stability of the reduction motor is improved, the second inner gear ring 23 is arranged in the second accommodating cavity 261, because the inner diameter of the second accommodating cavity 261 is larger than that of the first accommodating cavity 26, the edges of the first accommodating cavity 26 and the second accommodating cavity 261 are misaligned, the second inner gear ring 23 will not collide with the first inner gear ring 22, and a plurality of clamping grooves 262 are arranged in the second accommodating cavity 261. In addition, a plurality of limiting grooves 272 are arranged on the side of the blocking block 27 close to the first accommodating cavity 26, the first inner gear ring 22 is provided with a limiting block 221 matched with the limiting grooves 272, the first inner gear ring 22 is stably connected in the first accommodating cavity 26 through the limiting block 221 and the limiting grooves 272, the second inner gear ring 23 is provided with a clamping block 231 matched with the clamping grooves 262 on the outer periphery, the second inner gear ring 23 is stably connected with the second accommodating cavity 261 through the clamping block 231 and the clamping grooves 262, the limiting block 221 of the first inner gear ring 22 and the clamping block 231 on the outer periphery of the second inner gear ring 23 are matched with each other through the limiting grooves 272 arranged on the side of the blocking block 27 close to the first accommodating cavity 26, and the clamping grooves 262 on the inner wall of the second accommodating cavity 261, the first inner gear ring 22 will not rotate in the first accommodating cavity 26, and the second inner gear ring 23 will not rotate in the second accommodating cavity 261, so that the torque loss is caused.

[0046] The first transmission plate 24 is provided with a convex step 243, the first fixed rod 242 is arranged at the edge of the convex step 243, the first inner gear ring 22 is provided with a ring-shaped isolation protrusion 222 at the side close to the first transmission plate 24, and the first inner gear ring 22 is abutted with the first transmission plate 24 through the ring-shaped isolation protrusion. By arranging the convex step 243 on the first transmission plate 24 and arranging the first fixed rod 242 at the edge of the convex step 243, the stability and support force of the structure are enhanced. At the same time, the first inner gear ring 22 is abutted with the first transmission plate 24 through the ring-shaped isolation protrusion, not only the isolation effect is improved, the friction and wear are reduced, but also the internal space layout is optimized, so that the motor is more compact, the transmission efficiency is improved, the service life is prolonged, and the overall performance and reliability of the planetary variable speed motor are improved.

[0047] As Figure 7 , Figure 8The shown housing 2 is located at the outer periphery of the block 27 is provided with a connecting hole 273, the connecting hole 273 is provided with a threading block 274, the threading block 274 is provided with a plurality of threading holes 275, the block 27 is located at the connecting hole 273 is provided with a threading slot 276, the block 27 is provided with a bearing groove 277 for accommodating the bearing, the transmission rod 11 is rotatably connected with the first bearing 278 in the bearing groove 277. The connecting hole 273 and the threading block 274 make the electrical connection of the speed reducer motor more convenient and the line can be effectively protected, and the rotating speed of the driving motor 1 can be accurately controlled. At the same time, the bearing groove 277 on the block 27 enhances the stability of the structure, and the rotating connection of the transmission rod 11 and the first bearing 278 simplifies the process of maintaining and replacing the first bearing 278, improves the practicability and reliability of the motor.

[0048] The housing 2 is divided into an upper shell 28 and a lower shell 29, the connecting part of the upper shell 28 and the lower shell 29 is provided with a placing groove 281, the placing groove 281 is provided with a rubber ring 282, the outer periphery of the upper shell 28 and the lower shell 29 is provided with a plurality of fixing blocks 283, the fixing blocks 283 are provided with fixing holes 284, the fixing holes 284 are threadedly connected with fixing bolts 285, and the fixing bolts 285 are provided with fixing washers 286 at the contact position with the end of the fixing hole 284. The split type upper shell 28 and lower shell 29 make the housing 2 easy to assemble and disassemble, and the rubber ring 282 in the connecting part of the placing groove 281 enhances the sealing performance and effectively prevents the invasion of external pollutants. In addition, the fixing blocks 283 on the outer periphery of the upper shell 28 and the lower shell 29 cooperate with the fixing holes 284 and the fixing bolts 285 to improve the structural stability of the housing 2. The design of the fixing washer 286 at the contact position of the fixing bolt 285 and the end of the fixing hole 284 further protects the motor housing 2, disperses stress, and improves the reliability of the connection.

[0049] The outer periphery of the lower shell 29 is provided with a plurality of mounting ears 291, the mounting ears 291 are provided with mounting bolts 292, the lower shell 29 includes a transmission part 293, the transmission part 293 is provided in stages, the transmission part 293 is provided with an output opening 294 in the middle, the output rod 3 is provided in the output opening 294, the lower shell 29 is provided with a containing groove 295 above the output opening 294, the containing groove 295 is provided with a ring-shaped washer 296, and the ring-shaped washer 296 is provided with a second bearing 297 above. The mounting ears 291 on the outer periphery of the lower shell 29 are provided with mounting bolts 292 inside, which realizes the convenient installation and fixation of the speed reducer motor. In addition, the ring-shaped washer 296 and the second bearing 297 in the containing groove 295 above the lower shell 29 provide better support and protection for the output rod 3, reduce vibration and wear, prolong the service life of the output rod 3, and thus improve the performance and reliability of the speed reducer motor.

[0050] As Figure 9The third bearing 32 is sleeved in the output opening 294 at the outer periphery of the output rod 3. The output rod 3 is provided with a retaining ring groove 33 at the bottom of the second bearing 297, and the elastic retaining ring 34 is clamped in the retaining ring groove 33. The output rod 3 is provided with a key groove 35 at the end away from the connecting part 31. The elastic retaining ring 34 in the retaining ring groove 33 can stabilize the third bearing 32 in the output opening 294. During the rotation of the output rod 3, the third bearing 32 will not be separated from the output rod 3 and can provide smooth rotation force for the output rod 3. In addition, the key groove 35 of the output rod 3 facilitates the transmission of power to the connected mechanical parts, and also facilitates the connection and fixation of the motor and the mechanical equipment.

[0051] The above-described embodiments only express several embodiments of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection range of the utility model.

Claims

1. A planetary variable speed motor comprising a drive motor, a housing and an output shaft, characterized by: The driving motor is detachably connected with the shell, the end of the transmission rod of the driving motor is provided with a helical gear, the shell is internally provided with a planetary gear structure, the transmission rod is linked with the planetary gear structure through the helical gear, the output rod is connected to the end of the planetary gear structure away from the driving motor, one end of the output rod arranged in the shell is a connecting portion, the connecting portion is provided with a connecting rod, one end of the planetary gear structure is engaged with the helical gear, and the other end of the planetary gear structure is detachably connected with the connecting rod, and the output rod is linked with the planetary gear structure through the connecting rod.

2. The planetary variable speed motor of claim 1, wherein: The planetary gear structure comprises a first planetary gear set, a second planetary gear set and a third planetary gear set, the outer side of the first planetary gear set is provided with a first inner ring gear, the outer periphery of the second planetary gear set and the third planetary gear set is provided with a second inner ring gear, a first transmission plate is arranged between the first planetary gear set and the second planetary gear set, the middle of the end face of the first transmission plate close to the second planetary gear set is provided with a first sun gear integrally formed, a second transmission plate is arranged between the second planetary gear set and the third planetary gear set, the middle of the end face of the second transmission plate close to the third planetary gear set is provided with a second sun gear integrally formed, the first sun gear is engaged with the second planetary gear set, and the second sun gear is engaged with the third planetary gear set.

3. The planetary variable speed electric motor of claim 2, wherein: The first transmission plate is provided with a plurality of first fixing rods on the side close to the driving motor, the first fixing rods are integrally formed with the first transmission plate, the first planetary gear set is arranged on the first fixing rods, the second transmission plate is provided with a plurality of second fixing rods on the side close to the first planetary gear set, the second fixing rods are integrally formed with the second transmission plate, and the second planetary gear set is arranged on the second fixing rods.

4. The planetary variable speed electric motor of claim 3, wherein: The inside of the shell comprises a first accommodating cavity and a second accommodating cavity, the first inner ring gear is arranged in the first accommodating cavity, the shell is provided with a resisting block on the side close to the driving motor of the first accommodating cavity, the middle of the resisting block is provided with a rotating shaft hole for the transmission rod to pass through, a plurality of limiting grooves are arranged on the side of the resisting block close to the first accommodating cavity, the first inner ring gear is provided with limiting blocks matched with the limiting grooves, the first inner ring gear is stably connected in the first accommodating cavity through the limiting blocks and the limiting grooves, the second inner ring gear is arranged in the second accommodating cavity, a plurality of clamping grooves are arranged in the second accommodating cavity, the outer periphery of the second inner ring gear is provided with clamping blocks matched with the clamping grooves, and the second inner ring gear is stably connected with the second accommodating cavity through the clamping blocks and the clamping grooves.

5. The planetary variable speed electric motor of claim 4, wherein: The first transmission plate is provided with a convex step, the first fixing rods are arranged at the edge of the convex step, the first inner ring gear is provided with annular isolation protrusions on the side close to the first transmission plate, and the first inner ring gear is abutted with the first transmission plate through the annular isolation protrusions.

6. The planetary variable speed electric motor of claim 5, wherein: The shell is located at the outer peripheral resistance block is provided with connecting hole, the connecting hole is equipped with the wire penetrating block, the wire penetrating block is equipped with a plurality of wire penetrating holes, the resistance block is located at the connecting hole and is provided with wire penetrating slot, the resistance block middle part is provided with bearing groove for containing bearing, the transmission rod is detachably connected with first bearing in bearing groove.

7. The planetary variable speed motor of any one of claims 1 to 6, wherein: The shell is divided into upper shell and lower shell, the upper shell and lower shell connecting place is provided with placing groove, the placing groove is equipped with rubber ring, the upper shell and lower shell outer periphery is equipped with a plurality of fixed blocks for fixing, the fixed block is provided with fixed hole, the fixed hole is equipped with fixed bolt, the fixed bolt and fixed hole end part contact position is equipped with fixed washer.

8. The planetary variable speed electric motor of claim 7, wherein: The lower shell outer periphery is equipped with a plurality of mounting ears, the mounting ear is equipped with mounting bolt, the lower shell includes transmission part, the transmission part is arranged in stages, the transmission part middle part is provided with output opening, the output rod is equipped in output opening, the lower shell is located above output opening and is provided with containing groove, the containing groove is equipped with ring washer, the ring washer top is equipped with second bearing.

9. The planetary variable speed electric motor of claim 8, wherein: The output rod outer periphery is equipped with third bearing in output opening, the output rod is located at the bottom of second bearing and is provided with baffle ring groove, the baffle ring groove is equipped with elastic baffle ring, the output rod is away from the end of connecting part and is provided with key groove.

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