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CN-224233487-U - Speed reducing motor

CN224233487UCN 224233487 UCN224233487 UCN 224233487UCN-224233487-U

Abstract

The utility model relates to the technical field of gear motors, in particular to a gear motor which comprises a motor, a planetary gear set, a driving shaft, a sun gear and a plurality of planet gears, wherein the motor comprises a first shell, a rotor and a stator which are coaxially arranged, the stator is fixedly arranged in the first shell, the rotor rotates around the axis of the motor relative to the stator, the planetary gear set comprises the driving shaft, the sun gear and the plurality of planet gears, the stator and the sun gear are fixedly arranged on the driving shaft, the plurality of planet gears are uniformly distributed on the periphery of the sun gear and meshed with the sun gear, and the stator and the sun gear are fixedly arranged on the driving shaft, so that the stator and the sun gear rotate strictly and coaxially, the problem of axis deviation is accurately solved, the stability of a transmission system is improved, and the gear motor is ensured to run at constant speed and precision.

Inventors

  • REN GUANGYING
  • FENG HAO

Assignees

  • 任工制造(苏州)有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (8)

  1. 1. A gear motor, comprising: The motor (1) comprises a first shell (11), and a rotor (12) and a stator (13) which are coaxially arranged, wherein the stator (13) is fixedly arranged in the first shell (11), and the rotor (12) rotates around the axis of the motor (1) relative to the stator (13); Planetary gear set (2), including drive shaft (21), sun gear (22) and a plurality of planet wheel (23), stator (13) with sun gear (22) all set firmly in on drive shaft (21), stator (13) with sun gear (22) coaxial rotation, a plurality of planet wheel (23) equipartition in the periphery of sun gear (22) and with sun gear (22) meshing.
  2. 2. A gear motor according to claim 1, characterized in that the planetary gear set (2) comprises a second housing (24), the sun wheel (22) and the planet wheel (23) are driven in the second housing (24), a transition housing (5) is arranged between the first housing (11) and the second housing (24), and the drive shaft (21) is movable through the transition housing (5).
  3. 3. A gear motor according to claim 2, wherein the first housing (11) and the second housing (24) penetrate along the length direction of the driving shaft (21), the transition housing (5) separates the first housing (11) and the second housing (24), the transition housing (5) is provided with a first through hole (51), and the driving shaft (21) movably penetrates through the first through hole (51).
  4. 4. A gear motor according to claim 2, wherein the second housing (24) is rotatably connected with a planet carrier (25), the driving shaft (21) is coaxially rotatably connected with the planet carrier (25), a plurality of planet gears (23) are rotatably connected with the planet carrier (25), rotation central axes of the planet gears (23) are arranged in parallel, an inner tooth part is arranged in the second housing (24), and the planet gears (23) are meshed with the inner tooth part of the second housing (24).
  5. 5. A gear motor according to claim 4, wherein a first bearing (26) and a second bearing (27) are provided in the second housing (24) near both ends thereof, and the carrier (25) is rotatably connected to the inside of the second housing (24) through the first bearing (26) and the second bearing (27).
  6. 6. A gear motor according to claim 4, wherein an input shaft (3) is fixedly arranged at one end of the planet carrier (25) deviating from the driving shaft (21), the driving shaft (21) is coaxial with the input shaft (3), the input shaft (3) extends out of the second shell (24), an annular first cover plate (4) is fixedly arranged at the end face of the second shell (24) deviating from the transition shell (5), and the input shaft (3) is rotationally connected with the first cover plate (4).
  7. 7. The gear motor of claim 1, wherein the first shell (11) is away from the transition shell (5) and fixedly provided with a second cover plate (6), the second cover plate (6) is fixedly provided with a hollow sleeve (7), the driving shaft (21) is rotationally connected to the inner wall of the sleeve (7), and the stator (13) is fixedly arranged on the outer wall of the sleeve (7).
  8. 8. The gear motor of claim 7, wherein the second cover plate (6) is fixedly provided with a driver (8) at the side away from the first shell (11), and the motor (1) is in driving connection with the driver (8).

Description

Speed reducing motor Technical Field The utility model relates to the technical field of gear motors, in particular to a gear motor. Background In the field of modern mechanical transmission and power take-off, planetary gear sets and motors are the core components, which carry the important task of converting the high-speed rotation of the motor into the proper rotational speed and torque required by the device. In practical engineering application, the sun shaft of the planetary gear set is in transmission connection with the motor shaft of the motor. In the transmission process, the problem that the axis of the motor shaft and the axis of the sun shaft have deviation causes uneven gear engagement, vibration and noise are generated to accelerate gear abrasion, the service life of the gear is greatly shortened, the maintenance cost and the downtime of equipment are increased, and the production efficiency and the product quality are seriously affected. Disclosure of utility model The utility model aims to provide a gear motor to solve the problem of deviation between a sun shaft of a planetary gear set and a motor driving shaft in the prior art. The technical scheme is that the speed reducing motor comprises a motor body, a planetary gear set, a driving shaft, a sun gear and a plurality of planetary gears, wherein the motor body comprises a first shell, a rotor and a stator which are coaxially arranged, the stator is fixedly arranged in the first shell, the rotor rotates around the axis of the motor relative to the stator, the stator and the sun gear are fixedly arranged on the driving shaft, the stator and the sun gear coaxially rotate, and the planetary gears are uniformly distributed on the periphery of the sun gear and meshed with the sun gear. Preferably, the planetary gear set comprises a second housing, the sun gear and the planet gears are driven in the second housing, a transition housing is arranged between the first housing and the second housing, and the driving shaft movably penetrates through the transition housing. Preferably, the first casing and the second casing penetrate along the length direction of the driving shaft, the transition casing separates the first casing and the second casing, a first through hole is formed in the transition casing, and the driving shaft movably penetrates through the first through hole. Preferably, the second casing is rotationally connected with a planet carrier, the driving shaft is coaxially rotationally connected with the planet carrier, a plurality of planet gears are rotationally connected with the planet carrier, a plurality of rotation central axes of the planet gears are arranged in parallel, an inner tooth part is arranged in the second casing, and a plurality of planet gears are meshed with the inner tooth part of the second casing. Preferably, a first bearing and a second bearing are arranged in the second shell near two ends of the second shell, and the planet carrier is rotatably connected to the inside of the second shell through the first bearing and the second bearing. Preferably, the planet carrier deviates from the one end of drive shaft has set firmly the input shaft, drive shaft and input shaft are coaxial, the input shaft extends the second casing, the second casing deviates from transition casing's terminal surface has set firmly annular first apron, the input shaft rotates with first apron and is connected. Preferably, the first shell is away from the transition shell and is fixedly provided with a second cover plate, the second cover plate is fixedly provided with a hollow sleeve, the driving shaft is rotationally connected to the inner wall of the sleeve, and the stator is fixedly arranged on the outer wall of the sleeve. Preferably, a driver is fixedly arranged on the side, facing away from the first shell, of the second cover plate, and the motor is in driving connection with the driver. Compared with the prior art, the utility model has the advantages that: The stator and the sun gear are fixedly arranged on the driving shaft, strict coaxial rotation of the stator and the sun gear is realized, the phenomenon of uneven gear engagement caused by axis deviation is accurately solved, impact vibration caused by poor engagement is greatly reduced, meanwhile, the precision can be greatly improved, the transmission stability is improved, the running noise of equipment is reduced, the damage of vibration to other parts is reduced while the working environment is improved, the integral stability of the equipment is improved, in addition, the scheme simplifies the equipment assembling and debugging process, complicated axis centering adjustment is not needed, the debugging time is shortened, the production preparation efficiency is improved, the stable transmission system ensures that the equipment runs at constant speed and precision, the production interruption and quality fluctuation are reduced, and the production efficiency and the pr