CN110541928A - High-precision planetary reducer - Google Patents

High-precision planetary reducer Download PDF

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Publication number
CN110541928A
CN110541928A CN201910684183.6A CN201910684183A CN110541928A CN 110541928 A CN110541928 A CN 110541928A CN 201910684183 A CN201910684183 A CN 201910684183A CN 110541928 A CN110541928 A CN 110541928A
Authority
CN
China
Prior art keywords
bearing
output shaft
speed reducer
face
guide sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910684183.6A
Other languages
Chinese (zh)
Inventor
李柏君
李泽民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Motovari Transmission Machinery Manufacturing Co Ltd
Original Assignee
Jiangsu Motovari Transmission Machinery Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Motovari Transmission Machinery Manufacturing Co Ltd filed Critical Jiangsu Motovari Transmission Machinery Manufacturing Co Ltd
Priority to CN201910684183.6A priority Critical patent/CN110541928A/en
Publication of CN110541928A publication Critical patent/CN110541928A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022—Adjustment of gear shafts or bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • F16H57/022—Adjustment of gear shafts or bearings
    • F16H2057/0221—Axial adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H2057/085—Bearings for orbital gears

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The invention relates to a high-precision planetary speed reducer, which comprises an output shaft, a speed reducer case, a bearing and an adjusting device, wherein the rear half part of the output shaft is embedded in the speed reducer case and is mutually connected with the speed reducer case through the bearing, the bearing is coated outside the output shaft and is coaxially distributed with the output shaft, the adjusting device is coated outside the output shaft, the outer side surface of the adjusting device is mutually connected with the side wall of the speed reducer case, the front end surface of the adjusting device is positioned outside the speed reducer case, the rear end surface of the adjusting device is positioned in the speed reducer case and is abutted against the front end surface of the bearing coated on the outer surface of the output shaft, the output shaft comprises a shaft body and a planet carrier. On one hand, the planetary reducer can effectively meet the requirements of various planetary reducer structures with different structural types; on the other hand, the elastic deformation capacity of the planetary reducer during operation can be effectively improved, so that the purpose of elastically absorbing axial external force and radial external force applied to the planetary reducer during operation is achieved.

Description

High-precision planetary reducer
Technical Field
The invention relates to a high-precision planetary reducer, belonging to the technical field of planetary reducers.
Background
The existing planetary reducer mainly comprises a gear ring shell, an input shaft, a sun gear in key connection with the input shaft, a planetary gear meshed with the sun gear and an output shaft for installing the planetary gear. Wherein the input shaft needs to be connected in a plurality of planetary gears on planet carrier and the planet carrier to lead to input shaft both ends atress overall arrangement, therefore the input shaft very easily takes place the drunkenness under self action of gravity and the external force impact action in service, beat etc. seriously influence planetary reducer operating stability and precision, in addition, current planetary reducer assembly structure often all carries out the lug connection through equipment such as bolt, bearing, thereby it is relatively poor to lead to planetary reducer equipment structure toughness and rigidity homogeneous phase, planetary reducer equipment operating stability and reliability have further been influenced.
Therefore, in view of the current situation, a brand new planetary gear reducer structure is urgently needed to be developed so as to meet the requirement of practical use.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a high-precision planetary reducer which effectively meets the structural use of various planetary reducers with different structural types; on the other hand, the elastic deformation capacity of the planetary speed reducer during operation can be effectively improved, so that the elastic absorption of axial external force and radial external force applied to the planetary speed reducer during operation is achieved, and the defects that the input shaft has large axial movement and relatively poor rigidity and toughness during operation of the planetary speed reducer are overcome.
In order to achieve the above-mentioned effects, a high-precision planetary reducer is proposed, which includes the following contents:
A high-precision planetary reducer comprises an output shaft, a reducer case, a bearing and an adjusting device, wherein the rear half part of the output shaft is embedded in the reducer case and is connected with the reducer case through the bearing, the bearing is coated outside the output shaft and is distributed coaxially with the output shaft, the adjusting device is coated outside the output shaft and is distributed coaxially with the output shaft, the outer side surface of the adjusting device is connected with the side wall of the reducer case, the front end surface is positioned outside the reducer case, the rear end surface is positioned in the reducer case and is abutted against the front end surface of the bearing coated on the outer surface of the output shaft, the output shaft comprises a shaft body and a planet carrier, the planet carrier is positioned in the reducer case, the front end surface of the planet carrier is provided with a connecting boss, the connecting boss is distributed coaxially with the planet carrier, the side surface of the connecting boss is connected with the shaft body case through the, the front end face of the shaft body is positioned outside a speed reducer case, the adjusting device comprises a sealing end cover, a guide sleeve, an elastic sealing ring, a disc spring, an adjusting bolt and an elastic cushion block, wherein the guide sleeve is of a hollow tubular structure, sealing threads are arranged on the outer surface of the guide sleeve and are mutually connected with the side wall of the speed reducer case through the sealing threads, the front end face of the guide sleeve is connected with the sealing end cover, the rear end face of the guide sleeve is mutually connected with at least one elastic sealing ring through at least one disc spring, the sealing end cover, the guide sleeve, the elastic sealing ring and the disc spring are coaxially distributed, the front end face of the elastic sealing ring is abutted against and coaxially distributed with the front end face of the bearing, at least three bearing grooves are arranged on the front end face of the elastic sealing ring, the bearing grooves are uniformly distributed around the axis of the elastic sealing ring, the bearing groove corresponds to the sealing end cover, the guide sleeve, the elastic sealing ring and the disc spring, the sealing end cover, the guide sleeve, the elastic sealing ring and the disc spring are uniformly connected with the screw holes and connected with the adjusting bolts, the front end face of each adjusting bolt is connected with the rear end face of the elastic cushion block and coaxially distributed, and the front end face is located on the outer side of the sealing end cover.
Furthermore, the front end face and the rear end face of the connecting boss are respectively provided with an elastic retainer ring, and the elastic retainer rings are coated outside the connecting boss, coaxially distributed with the connecting boss and respectively abutted against the front end face and the rear end face of the bearing.
Further, at least one of the bearings is provided, and when the number of the bearings is two or more, the two adjacent bearings are connected with each other through at least one elastic washer.
Furthermore, the rear end face of the sealing end cover is provided with a connecting groove, the connecting groove is coaxially distributed with the sealing end cover and the guide sleeve, and the front end face of the guide sleeve is embedded in the connecting groove and is connected with the sealing end cover through the connecting groove.
Furthermore, elastic sealing rings are arranged in the connecting grooves, and at least one elastic sealing ring is coaxially distributed with the connecting grooves, the sealing end cover and the guide sleeve.
Furthermore, the rear end face of the sealing end cover is connected with the outer surface of the speed reducer case, the adjusting bolt is connected with the front end face of the sealing end cover through a pressure bearing spring, and the pressure bearing spring is coaxially distributed with the sealing end cover and the adjusting bolt respectively.
On one hand, the device has compact structure, high operation automation degree and high operation precision, and can effectively meet the structural use of various planetary speed reducers with different structural types; on the other hand, the elastic deformation capacity of the planetary reducer during operation can be effectively improved, so that the elastic absorption of axial external force and radial external force applied to the planetary reducer during operation is achieved, and the defects that the input shaft has large axial movement and relatively poor rigidity and toughness during operation of the planetary reducer are overcome.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic structural view of the present invention;
Detailed Description
In order to facilitate the implementation of the technical means, creation features, achievement of the purpose and the efficacy of the invention, the invention is further described below with reference to specific embodiments.
Fig. 1-3 a high accuracy planetary reducer, including output shaft 1, speed reducer machine case 2, bearing 3 and adjusting device 4, the latter half of output shaft 1 inlays in speed reducer machine case 2 to through bearing 3 and speed reducer machine case 2 interconnect, and bearing 3 cladding is outside output shaft 1 and with output shaft 1 coaxial distribution, adjusting device 4 cladding is outside output shaft 1 and with output shaft 1 coaxial distribution, and adjusting device 4 lateral surface is in speed reducer machine case 2 lateral wall interconnect, the preceding terminal surface is outside speed reducer machine case 2, the back end face is located speed reducer machine case 2 and offsets with the preceding terminal surface of the bearing 3 cladding at the output shaft 1 surface.
In this embodiment, the output shaft 1 includes a shaft body 101 and a planet carrier 102, the planet carrier 102 is located in the speed reducer case 2, a connection boss 103 is established to its front end face, the connection boss 103 and the planet carrier 102 are coaxially distributed, and the connection boss 103 side surface passes through a bearing 3 and is mutually connected with the speed reducer case 2, the front end face passes through an elastic coupling and the shaft body 101 rear end face is mutually connected and is coaxially distributed with the shaft body 101, the front end face of the shaft body 101 is located outside the speed reducer case 2.
in this embodiment, the adjusting device 4 includes a sealing end cover 41, a guide sleeve 42, elastic sealing rings 43, disk springs 44, adjusting bolts 45, and elastic cushion blocks 46, wherein the guide sleeve 42 is a hollow tubular structure, the outer surface of the guide sleeve 42 is provided with sealing threads 47, and is connected with the side wall of the speed reducer casing 2 through the sealing threads 47, the front end surface of the guide sleeve 42 is connected with the sealing end cover 41, the rear end surface is connected with at least one elastic sealing ring 43 through at least one disk spring 44, the sealing end cover 41, the guide sleeve 42, the elastic sealing rings, and the disk springs 44 are all coaxially distributed, the front end surface of the elastic sealing ring 43 abuts against and is coaxially distributed with the front end surface of the bearing 3, the front end surface of the elastic sealing ring 43 is provided with at least three bearing grooves 48, the bearing grooves 48 are uniformly distributed around the axis of the elastic sealing ring 43, each bearing groove 48 is internally provided with one elastic cushion block 46, the bearing groove 48 corresponds to the sealing end cover 41, the guide sleeve 42, the elastic sealing ring 43 and the disc spring 44, and is provided with a connection screw hole 49, and is connected with the adjusting bolt 45 through the connection screw hole 49, the front end face of the adjusting bolt 45 is connected with the rear end face of the elastic cushion block 46 and is coaxially distributed, and the front end face is positioned on the outer side of the sealing end cover 41.
Elastic check rings 5 are arranged on the front end face and the rear end face of the connecting boss 103, and the elastic check rings 5 are coated outside the connecting boss 103, coaxially distributed with the connecting boss 103 and respectively abutted against the front end face and the rear end face of the bearing 3.
Meanwhile, at least one of the bearings 3 is connected to each other through at least one elastic washer 6 when two or more bearings 3 are provided.
In addition, the rear end face of the sealing end cover 41 is provided with a connecting groove 7, the connecting groove 7 is coaxially distributed with the sealing end cover 41 and the guide sleeve 42, the front end face of the guide sleeve 42 is embedded in the connecting groove 7 and is connected with the sealing end cover 41 through the connecting groove 7, an elastic sealing ring 8 is arranged in the connecting groove 7, and at least one elastic sealing ring 8 is coaxially distributed with the connecting groove 7, the sealing end cover 41 and the guide sleeve 42.
Preferably, the rear end face of the end cover 41 is connected with the outer surface of the speed reducer case 2, the adjusting bolt 45 is connected with the front end face of the end cover 41 through a pressure-bearing spring 9, and the pressure-bearing spring 9 is coaxially distributed with the end cover 41 and the adjusting bolt 45 respectively.
This is novel in the concrete implementation, at first assembles output shaft, speed reducer machine case, bearing and adjusting device to accomplish planetary reducer assembly operation.
In operation, on the one hand, the accessible bearing bears the output shaft and fixes a position, improves the stability and the reliability of output shaft location, and on the other hand is at the operation in-process, and accessible adjusting device adjusts the operating position of bearing, reaches the purpose of adjusting the operation to the output shaft position, can carry out elastic adsorption to the shaking force that produces in addition when the output shaft moves simultaneously to eliminate the shaking force when the output shaft moves, improve planetary reducer equipment operating stability and reliability.
on one hand, the device has compact structure, high operation automation degree and high operation precision, and can effectively meet the structural use of various planetary speed reducers with different structural types; on the other hand, the elastic deformation capacity of the planetary reducer during operation can be effectively improved, so that the elastic absorption of axial external force and radial external force applied to the planetary reducer during operation is achieved, and the defects that the input shaft has large axial movement and relatively poor rigidity and toughness during operation of the planetary reducer are overcome.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a high accuracy planetary reducer, includes output shaft, speed reducer machine case, bearing and adjusting device, its characterized in that: the rear half part of the output shaft is embedded in a speed reducer case and is mutually connected with the speed reducer case through a bearing, the bearing is coated outside the output shaft and is coaxially distributed with the output shaft, the adjusting device is coated outside the output shaft and is coaxially distributed with the output shaft, the outer side surface of the adjusting device is mutually connected with the side wall of the speed reducer case, the front end surface is positioned outside the speed reducer case, the rear end surface is positioned in the speed reducer case and is abutted against the front end surface of the bearing coated on the outer surface of the output shaft, the output shaft comprises a shaft body and a planet carrier, the planet carrier is positioned in the speed reducer case, the front end surface of the planet carrier is provided with a connecting boss, the connecting boss is coaxially distributed with the planet carrier, the side surface of the connecting boss is mutually connected with the speed reducer case through the bearing, the front end surface is, the adjusting device comprises a sealing end cover, a guide sleeve, an elastic sealing ring, a disc spring, an adjusting bolt and an elastic cushion block, wherein the guide sleeve is of a hollow tubular structure, sealing threads are arranged on the outer surface of the guide sleeve and are connected with the side wall of the speed reducer case through the sealing threads, the front end face of the guide sleeve is connected with the sealing end cover, the rear end face of the guide sleeve is connected with at least one elastic sealing ring through at least one disc spring, the sealing end cover, the guide sleeve, the elastic sealing ring and the disc spring are coaxially distributed, the front end face of the elastic sealing ring is abutted against and coaxially distributed with the front end face of the bearing, at least three bearing grooves are formed in the front end face of the elastic sealing ring, the bearing grooves are uniformly distributed around the axis of the elastic sealing ring, one elastic cushion block is arranged in each bearing groove, the front end face of the elastic cushion block, The guide sleeve, the elastic sealing ring and the disc spring are uniformly connected with screw holes and are connected with the adjusting bolt through the connecting screw holes, the front end face of the adjusting bolt is connected with the rear end face of the elastic cushion block and is coaxially distributed, and the front end face is located on the outer side of the sealing end cover.
2. The planetary reducer of claim 1, wherein the connecting bosses have circlips at both front and rear end faces, the circlips covering the connecting bosses and being coaxially disposed with the connecting bosses and abutting against the front and rear end faces of the bearing, respectively.
3. A high-precision planetary reducer according to claim 1, wherein at least one of said bearings is provided, and when two or more bearings are provided, two adjacent bearings are connected to each other by at least one elastic washer.
4. The planetary reducer according to claim 1, wherein the end cap has a connecting groove on a rear end surface thereof, the connecting groove is coaxially disposed with the end cap and the guide sleeve, and the front end surface of the guide sleeve is embedded in the connecting groove and is connected to the end cap via the connecting groove.
5. The high-precision planetary reducer according to claim 4, wherein an elastic sealing ring is arranged in the connecting groove, and at least one elastic sealing ring is coaxially distributed with the connecting groove, the sealing end cover and the guide sleeve.
6. The high-precision planetary reducer according to claim 1, wherein the rear end face of the seal end cover is connected with the outer surface of the reducer casing, the adjusting bolt is connected with the front end face of the seal end cover through a pressure bearing spring, and the pressure bearing spring is coaxially distributed with the seal end cover and the adjusting bolt respectively.
CN201910684183.6A 2019-07-26 2019-07-26 High-precision planetary reducer Pending CN110541928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910684183.6A CN110541928A (en) 2019-07-26 2019-07-26 High-precision planetary reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910684183.6A CN110541928A (en) 2019-07-26 2019-07-26 High-precision planetary reducer

Publications (1)

Publication Number Publication Date
CN110541928A true CN110541928A (en) 2019-12-06

Family

ID=68709846

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910684183.6A Pending CN110541928A (en) 2019-07-26 2019-07-26 High-precision planetary reducer

Country Status (1)

Country Link
CN (1) CN110541928A (en)

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20191206

WD01 Invention patent application deemed withdrawn after publication