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CN-224226549-U - Special deceleration equipment for compact hoisting machinery

CN224226549UCN 224226549 UCN224226549 UCN 224226549UCN-224226549-U

Abstract

The utility model relates to the technical field of speed reducers, in particular to a special speed reducing device for compact hoisting machinery, which comprises a box body, an input part arranged at the front end of the box body and an output shaft arranged at the rear end of the box body, wherein a multistage transmission system is arranged between the input part and the output shaft, and comprises a primary transmission system formed by meshing a driving gear and a driven gear, a secondary transmission system formed by meshing a gear shaft I and a gear II, and a tertiary transmission system formed by meshing a gear shaft II and a gear II, and the adjacent transmission systems are in meshed transmission connection. The technical scheme adopts an integrated box body and a direct-connected variable frequency roller way brake motor, so that a traditional coupler is omitted, the length of the whole machine is shortened, positioning errors are reduced, coaxiality is guaranteed, oil seal abrasion is reduced, sealing reliability is improved, the multi-stage transmission system is in modularized design, the speed ratio range is wide, different working condition requirements are met, the top of the box body is provided with a lifting screw, the bottom of the box body is provided with an integrated foot, the box body is supported to be directly fixed on a frame, and the size is reduced.

Inventors

  • ZOU YITING
  • MO HAIBIN
  • ZHANG TINGTING

Assignees

  • 江苏国茂减速机股份有限公司

Dates

Publication Date
20260512
Application Date
20250604

Claims (10)

  1. 1. The special speed reducing equipment for the compact hoisting machinery comprises a box body, an input part and an output shaft, wherein the input part is arranged at the front end of the box body, the output shaft is arranged at the rear end of the box body, a multistage transmission system is arranged between the input part and the output shaft, the special speed reducing equipment comprises a primary transmission system formed by meshing a driving gear and a driven gear, a secondary transmission system formed by meshing a gear shaft I and a gear II, a tertiary transmission system formed by meshing a gear shaft II and a gear II, the adjacent transmission systems are in meshed transmission connection, a sound-proof cover is fixedly connected to the outer part of the box body through bolts, sound-proof cotton is attached to the inner wall of the sound-proof cover, a grid type heat dissipation window is arranged on the inner wall of the sound-proof cover, and a noise monitor is fixedly arranged on the inner wall of the sound-proof cover through magnetic attraction and used for monitoring operation noise of the speed reducing equipment in real time.
  2. 2. The reduction gear for a compact hoisting machine according to claim 1, wherein the input part comprises a motor, the driving gear is fixed at an output end of the motor through a flat key in the primary transmission system, the driven gear is mounted on the first gear shaft through a flat key, the first gear shaft is mounted on the box body through a first tapered roller bearing and a second tapered roller bearing, and an axial gap of the first gear shaft is adjusted through an adjusting gasket and a first circlip for holes.
  3. 3. The reduction gear special for the compact hoisting machinery according to claim 1, wherein in the secondary transmission system, the first gear is fixed to the second gear shaft through a flat key and a first distance ring, the second gear shaft is mounted on the box body through a cylindrical roller bearing and a tapered roller bearing, and an axial clearance of the second gear shaft is adjusted through an adjusting gasket and a second circlip for holes.
  4. 4. The special speed reducing device for compact hoisting machinery according to claim 1, wherein in the three-stage transmission system, the second gear is fixed on the output shaft through a flat key, and the output shaft is mounted on the box body through a tapered roller bearing IV and a tapered roller bearing V and is axially positioned through a distance ring II.
  5. 5. The reduction gear special for the compact hoisting machinery according to claim 1, wherein an oil seal and an oil retainer are sequentially arranged at the outer end of the output shaft.
  6. 6. The special speed reducing device for compact hoisting machinery according to claim 1, wherein the top of the box body is symmetrically provided with eye screws, and the eye screws are fixed on a casting boss of the box body through threaded connection for hoisting and carrying the device.
  7. 7. The special speed reducing device for compact hoisting machinery according to claim 1, wherein a vent plug, an oil plug and an oil mirror are respectively arranged at the top, the bottom and the side of the box body; The ventilation plug is of a knob type structure with a filter screen, the oil plug is a magnetic plug, and the oil mirror is made of transparent pressure-resistant glass and is embedded in an observation window of the box body.
  8. 8. The speed reducing device special for compact hoisting machinery according to claim 1, wherein a transparent cover is arranged at a position of the box body corresponding to the output shaft, the transparent cover is connected with the box body through a snap-in quick-release structure, and a sealing rubber strip is attached to the inner side of the transparent cover.
  9. 9. The special speed reducing device for compact hoisting machinery according to claim 1, wherein the top of the box body is provided with a view hole cover, the view hole cover is fixed on a view hole flange of the box body through bolts, and high-temperature resistant glass is embedded in the view hole cover and used for observing the meshing state and lubrication condition of gears in the box body.
  10. 10. The special speed reducing device for the compact hoisting machinery, according to claim 1, wherein the soundproof cotton is made of a polyester fiber and rubber composite sound absorbing material, has a thickness of 15-25mm and is fixed with the inner wall of the soundproof cover through high-temperature resistant adhesive.

Description

Special deceleration equipment for compact hoisting machinery Technical Field The utility model relates to the technical field of speed reducers, in particular to a special speed reducing device for compact hoisting machinery. Background The hoisting machinery is widely applied to the fields of buildings, hydraulic engineering, mines, wharfs and the like, and the performance of a core power equipment speed reducer directly influences the stability and efficiency of material lifting or flat towing. The conventional speed reducer for hoisting machinery has the following remarkable defects. The structure is loose and the installation is inconvenient, the traditional speed reducer is mainly composed of a split type box body and an external motor, the installation bracket is relied on, the whole size is large, the assembly error is high, the installation requirement of a narrow space is difficult to adapt, the braking and transmission efficiency is insufficient, the traditional braking motor is connected with the speed reducer through a coupling, the coaxiality is difficult to ensure, oil seal abrasion and transmission efficiency loss are easy to cause, the braking response is slow, and potential safety hazards exist. Disclosure of Invention The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the utility model aims to provide a special speed reducing device for a compact hoisting machine, which is used for reducing the volume and the installation space of the speed reducing body and improving the transmission efficiency. The aim of the utility model can be achieved by the following technical scheme: A special speed reducing device for compact hoisting machinery comprises a box body, an input part and an output shaft, wherein the input part is arranged at the front end of the box body, the output shaft is arranged at the rear end of the box body, a multistage transmission system is arranged between the input part and the output shaft, the multistage transmission system comprises a primary transmission system formed by meshing of a driving gear and a driven gear, a secondary transmission system formed by meshing of a gear shaft I and a gear shaft II, and a tertiary transmission system formed by meshing of the gear shaft II and the gear II, the adjacent transmission systems are in meshed transmission connection, a sound-proof cover is fixedly connected to the outer part of the box body through bolts, sound-proof cotton is attached to the inner wall of the sound-proof cover, a grid type heat dissipation window is arranged on the inner wall of the sound-proof cover, and a noise monitor is fixedly arranged on the inner wall of the sound-proof cover through magnetic attraction and used for monitoring operation noise of the speed reducing device in real time. In some embodiments of the present utility model, the input part includes a motor, the driving gear is fixed to an output end of the motor through a flat key in the primary transmission system, the driven gear is mounted on the first gear shaft through a flat key, the first gear shaft is mounted on the box body through a first tapered roller bearing and a second tapered roller bearing, and an axial gap of the first gear shaft is adjusted through an adjusting gasket and a first circlip for holes. In some embodiments of the present utility model, in the secondary transmission system, the first gear is fixed to the second gear shaft through a flat key and a first distance ring, the second gear shaft is mounted to the case through a cylindrical roller bearing and a tapered roller bearing, and an axial clearance of the second gear shaft is adjusted through an adjusting gasket and a second circlip for holes. In some embodiments of the present utility model, in the three-stage transmission system, the second gear is fixed to the output shaft through a flat key, and the output shaft is mounted on the box through a tapered roller bearing four and a tapered roller bearing five, and is axially positioned through a distance ring two. In some embodiments of the present utility model, an oil seal and an oil retainer are sequentially disposed at the outer end of the output shaft. In some embodiments of the utility model, the top of the box body is symmetrically provided with lifting ring screws, and the lifting ring screws are fixed on the casting boss of the box body through threaded connection for lifting and carrying equipment. In some embodiments of the utility model, the top, the bottom and the side surfaces of the box body are respectively provided with a ventilation plug, an oil plug and an oil mirror; The ventilation plug is of a knob type structure with a filter screen and is used for balancing the air pressure inside and outside the box body and preventing lubricating oil from leaking due to pressure difference; the oil plug is a magnetic plug and is connected to an oil drain port of the box body i