CN201420836Y - Reducer with compound structure of similar cycloid gears and planetary gear - Google Patents

Reducer with compound structure of similar cycloid gears and planetary gear Download PDF

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Publication number
CN201420836Y
CN201420836Y CN200920115700XU CN200920115700U CN201420836Y CN 201420836 Y CN201420836 Y CN 201420836Y CN 200920115700X U CN200920115700X U CN 200920115700XU CN 200920115700 U CN200920115700 U CN 200920115700U CN 201420836 Y CN201420836 Y CN 201420836Y
Authority
CN
China
Prior art keywords
cover plate
driving crank
input shaft
speed reducer
cycloid wheel
Prior art date
Application number
CN200920115700XU
Other languages
Chinese (zh)
Inventor
陈佐国
Original Assignee
宁波市镇海永力液压有限公司
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Filing date
Publication date
Application filed by 宁波市镇海永力液压有限公司 filed Critical 宁波市镇海永力液压有限公司
Priority to CN200920115700XU priority Critical patent/CN201420836Y/en
Application granted granted Critical
Publication of CN201420836Y publication Critical patent/CN201420836Y/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/28Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/28Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F16H2001/323Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising eccentric crankshafts driving or driven by a gearing

Abstract

The utility model discloses a reducer with a compound structure of similar cycloid gears and a planetary gear. The reducer comprises a housing body with a middle through cavity; a cover plate is positioned and assembled at the front end of the middle through cavity of the housing body; a power input component is movably assembled and mounted in the middle of the cover plate; the power input component comprises an input shaft; the planetary gear is meshed with the tail end of the input shaft in transmission; the planetary gear is connected with a driving crank; two similar cycloid gears are controlled by the driving crank; power output gear pins are meshed with and controlled through the similar cycloid gears; and the gear pins are embedded in the middle through cavity of the housing body and the power output is realized through the housing body eventually. In the wheeled meshing transmission manner, the structure is compact, the transmission is reliable, and the transmission efficiencyis high; two eccentric shafts are arranged for 180 degrees on the driving crank, thereby improving the reliability of a reduction gearbox; a liquid lubricating manner is adopted in the reduction gearbox, so as to ensure the cleanliness and lubricity of the lubricating liquid in the reduction gearbox; and the sealing structure is reasonably designed, so that the sealing property is good, and the noise is low.

Description

The speed reducer of class cycloid wheel and planet wheel composite structure
Technical field
The utility model relates to the technical field of speed reducer, particularly the speed reducer of class cycloid wheel and planet wheel composite structure.
Background technique
Majority in the society adopts the speed reducer of cycloid stylus structure at present, how to be made up of input block, one-level deceleration component and double reduction parts, be that the Chinese utility model patent " cycloidal planetary gear speed reducer " (notification number is CN2854208Y) of ZL200520026486.2 is exactly this type of design as the patent No.; Form by input block, one-level secondary and multi-stage speed-reducing parts, output block three parts.Two cycloid wheel are housed in the endoporus of its deceleration component by pin wheel housing, and they are installed in respectively on the capacity eccentric bearing that two eccentric directions are mutually 180 °, by the driving of input block, make the rotation of two cycloid wheel and revolution by output shaft constant speed ground transmitting torque.One double reduction parts of this design adopt the cycloid wheel engagement system, and outwards transmit by output shaft, and its transmission of power is comparatively single, does not have the multiaxis output function.
Summary of the invention
Technical problem to be solved in the utility model is the present situation at prior art, provides a kind of compact structure, reliable transmission is good, transmission efficiency is high, impact is little, long service life, good airproof performance, lubrication effect is good and noise is low class cycloid wheel and the speed reducer of planet wheel composite structure.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: the speed reducer of class cycloid wheel and planet wheel composite structure, the shell body of cavity in the middle of comprising, the front end of cavity location is fitted with cover plate in the middle of this shell body, moving joining is equipped with the power input assembly in the middle of this cover plate, this power input assembly includes input shaft, the tail end transmission of this input shaft is engaged with planetary pinion, this planetary pinion is connected with driving crank, this driving crank control has two class cycloid wheel, such cycloid wheel all meshes the gear pin that control has the energy outputting power, and this gear pin scarf is in the middle cavity of shell body, and finally realizes power output by the shell body.
The measure of taking also comprises:
Above-mentioned planetary pinion engagement pairing has central gear, and this central gear and above-mentioned planetary pinion formation one-level deceleration assembly.
Above-mentioned central gear is connected by spline pair with the tail end of input shaft; The input shaft front end is the power intake that can be connected with external impetus, and the power intake of this input shaft front end also is connected with moving joining of cover plate intermediate support.
Be shaped on endoporus in the middle of the power intake of above-mentioned input shaft front end and connect keyway, be embedded with the outside framework oil seal body between above-mentioned input shaft front end appearance and the cover plate; Be equipped with the first rotary bearing assembly between above-mentioned input shaft and the bearing pin dish; Correspondingly, also be equipped with the second rotary bearing assembly between above-mentioned input shaft and the cover plate.
Above-mentioned bearing pin dish is fixedlyed connected with the cover plate rear end; This bearing pin dish also is positioned at planetary medial segment supporting with above-mentioned driving crank and is connected, and above-mentioned planetary pinion is fixedlyed connected with the tail end of this driving crank.
Be equipped with at least one bearing pin on the above-mentioned bearing pin dish, and this bearing pin and above-mentioned cover plate rear end screw thread spin fixing.
Be equipped with the 3rd rotary bearing assembly between above-mentioned bearing pin dish and the driving crank; Above-mentioned driving crank also is shaped on another supported end, and another supported end of this driving crank was connected with moving joining of above-mentioned cover plate.
Also be equipped with the 4th rotary bearing spare between another supported end of above-mentioned driving crank and the cover plate; Above-mentioned driving crank is shaped on two eccentric shafts on the intermediate section between another supported end, the bearing pin dish, and this eccentric shaft moves in turn to join with above-mentioned class cycloid and is connected.
Two eccentric shaft degree of one-tenth setting that above-mentioned driving crank is shaped on, and also be equipped with the 5th rotary bearing spare between this eccentric shaft and the above-mentioned class cycloid wheel; Location, the rear end of cavity is fitted with capping in the middle of the above-mentioned shell body, and the left-hand end of this central gear is withstood the inwall of this capping.
Above-mentioned capping is connected with the back-end sealing of cavity in the middle of the shell body, and correspondingly, above-mentioned cover plate is connected with the forward end seal of cavity in the middle of the shell body.
Above-mentioned class cycloid wheel and gear pin constitute the double reduction part; The bearing pin that wears on the above-mentioned bearing pin dish is one.
Compared with prior art, the front end location of the utility model cavity in the middle of the shell body is fitted with cover plate, moving joining is equipped with the power input assembly in the middle of this cover plate, this power input assembly includes input shaft, the tail end transmission of this input shaft is engaged with planetary pinion, and this planetary pinion is connected with driving crank, and this driving crank control has two class cycloid wheel, such cycloid wheel all meshes the gear pin that control has the energy outputting power, and this gear pin scarf is in the middle cavity of shell body.Advantage of the present utility model is: adopt wheeled engagement driving mode, its compact structure, reliable transmission and transmission efficiency height; Two eccentric shafts on driving crank become 180 degree to be provided with, off-centre is symmetrical in the axis centre of driving crank, adopted a pair of class cycloid wheel simultaneously, make two class cycloid wheel in the course of the work also with respect to speed reducer gyration center symmetry, offset monolateral stressed impact to structure, reach transient equiliblium, significantly improved the reliability of speed reducer; The inner mode that adopts liquid lubrication of speed reducer leaves two topping-up mouths in capping, guaranteed the cleanliness and the greasy property of speed reducer internal lubrication liquid, has improved the operating life of built-in driving component simultaneously; Sealing mainly contains three roads, and the one, seal by O type circle between capping and the housing, the 2nd, seal with a pair of float grease seal between shell body and the cover plate, the 3rd, the input shaft input end seals with the outside framework oil seal body, the appropriate design of sealing configuration, good airproof performance, and reduced the noise of speed reducer effectively.
Description of drawings
Fig. 1 is vertical cross-sectional schematic of the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, figure grade is described as follows: shell body 1, bearing pin 10, capping 11, gear pin 2, driving crank 3, another supported end 3a, eccentric shaft 3b, the 3rd rotary bearing assembly 31, the four rotary bearing spares 32, the five rotary bearing spares 33, planetary pinion 4, central gear 5, bearing pin dish 6, class cycloid wheel 7, cover plate 8, input shaft 9, the first rotary bearing assemblies 91, the second rotary bearing assembly 92, endoporus connects keyway 93, outside framework oil seal body 94.
The utility model embodiment, the speed reducer of class cycloid wheel and planet wheel composite structure, the shell body 1 of cavity in the middle of comprising, the front end location of cavity is fitted with cover plate 8 in the middle of this shell body 1, moving joining is equipped with the power input assembly in the middle of this cover plate 8, this power input assembly includes input shaft 9, the tail end transmission of this input shaft 9 is engaged with planetary pinion 4, this planetary pinion 4 is connected with driving crank 3, these driving crank 3 controls have two class cycloid wheel 7, class cycloid wheel 7 all meshes the gear pin 2 that control has the energy outputting power, and these gear pin 2 scarves are in the middle cavity of shell body 1.
Present embodiment is achieved in that planetary pinion 4 engagement pairings have central gear 5, and this central gear 5 constitutes one-level deceleration assembly with planetary pinion 4.The tail end of central gear 5 input shafts 9 connects by spline pair; Input shaft 9 front ends are the power intake that can be connected with external impetus, and the power intake of these input shaft 9 front ends also is connected with moving joining of cover plate 8 intermediate supports.
Be shaped on endoporus in the middle of the power intake of input shaft 9 front ends and connect keyway 93, be embedded with outside framework oil seal body 94 between input shaft 9 front end appearances and the cover plate 8; Be equipped with the first rotary bearing assembly 91 between input shaft 9 and the bearing pin dish 6; Correspondingly, also be equipped with the second rotary bearing assembly 92 between input shaft 9 and the cover plate 8.
Bearing pin dish 6 is fixedlyed connected with cover plate 8 rear ends; This bearing pin dish 6 also is connected with the medial segment supporting that driving crank 3 is positioned at planetary pinion 4, and planetary pinion 4 is fixedlyed connected with the tail end of this driving crank 3.
Be equipped with at least one bearing pin 10 on the bearing pin dish 6, and this bearing pin 10 spins with cover plate 8 rear end screw threads fixing.The bearing pin 10 that wears on the general bearing pin dish 6 is one.
Be equipped with the 3rd rotary bearing assembly 31 between bearing pin dish 6 and the driving crank 3; Driving crank 3 also is shaped on another supported end 3a, and this driving crank 3 another supported end 3a were connected with 8 moving joining of cover plate.
Also be equipped with the 4th rotary bearing spare 32 between another supported end 3a of driving crank 3 and the cover plate 8; Driving crank 3 is shaped on two eccentric shaft 3b on the intermediate section between another supported end 3a, the bearing pin dish 6, and this eccentric shaft 3b was connected with 7 moving joining of class cycloid wheel.
Two eccentric shaft 3b that driving crank 3 is shaped on become 180 degree to be provided with, and also are equipped with the 5th rotary bearing spare 33 between this eccentric shaft 3b and the class cycloid wheel 7; Location, the rear end of cavity is fitted with capping 11 in the middle of the shell body 1, and the left-hand end of this central gear 5 is withstood the inwall of this capping 11.
Capping 11 is connected with the back-end sealing of cavity in the middle of the shell body 1, and correspondingly, cover plate 8 is connected with the forward end seal of cavity in the middle of the shell body 1; Class cycloid wheel 7 constitutes the double reduction part with gear pin 2.
The utility model embodiment's assembly process is as follows:
Earlier outside framework oil seal body 94, the second rotary bearing assembly 92 and input shaft 9 are installed on the cover plate 8; Float grease seal, associated bearings assembly and shell body 1 etc. are installed on the cover plate 8 too; Load onto gear pin 2, driving crank 3 successively in shell body 1 inside then, class cycloid wheel 7 etc. are installed the bearing of gear pin 2 opposite sides again, load onto bearing pin dish 6 then, and be locked on the cover plate 8 with bearing pin 10, load onto planetary pinion 4 and central gear 5 at last, cover capping 11.
The utility model embodiment's working principle is as follows:
By the input of input shaft 9 high speed rotating, be delivered to central gear 5, central gear 5 and three planetary pinion 4 engagements realize first order deceleration, the rotation after will slowing down simultaneously passes to planetary pinion 4; Three planetary pinion 4 centers are connected with driving crank 3 by spline pair, rotation is passed to driving crank 3, driving crank 3 rotates and drives two class cycloid wheel 7, along distinctive curve of class cycloid wheel 7 outer rims and gear pin 2 engagements, simultaneously rotation is passed to 1 output of shell body, realizes second level deceleration.
Advantage of the present utility model is: adopt wheeled engagement driving mode, its compact structure, reliable transmission and transmission efficiency height; Two eccentric shafts on driving crank become 180 degree to be provided with, off-centre is symmetrical in the axis centre of driving crank, adopted a pair of class cycloid wheel simultaneously, make two class cycloid wheel in the course of the work also with respect to speed reducer gyration center symmetry, offset monolateral stressed impact to structure, reach transient equiliblium, significantly improved the reliability of speed reducer; The inner mode that adopts liquid lubrication of speed reducer leaves two topping-up mouths in capping, guaranteed the cleanliness and the greasy property of speed reducer internal lubrication liquid, has improved the operating life of built-in driving component simultaneously; Sealing mainly contains three roads, and the one, seal by O type circle between capping and the housing, the 2nd, seal with a pair of float grease seal between shell body and the cover plate, the 3rd, the input shaft input end seals with the outside framework oil seal body, the appropriate design of sealing configuration, good airproof performance, and reduced the noise of speed reducer effectively.
Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.

Claims (10)

1, the speed reducer of class cycloid wheel and planet wheel composite structure, the shell body (1) of cavity in the middle of comprising, it is characterized in that: the front end of cavity location is fitted with cover plate (8) in the middle of the described shell body (1), moving joining is equipped with the power input assembly in the middle of the described cover plate (8), this power input assembly includes input shaft (9), the tail end transmission of this input shaft (9) is engaged with planetary pinion (4), this planetary pinion (4) is connected with driving crank (3), described driving crank (3) control has two class cycloid wheel (7), described class cycloid wheel (7) all meshes the gear pin (2) that control has the energy outputting power, and this gear pin (2) scarf is in the middle cavity of described shell body (1).
2, the speed reducer of class cycloid wheel according to claim 1 and planet wheel composite structure, it is characterized in that: described planetary pinion (4) engagement pairing has central gear (5), and this central gear (5) constitutes one-level deceleration assembly with described planetary pinion (4).
3, the speed reducer of class cycloid wheel according to claim 2 and planet wheel composite structure is characterized in that: described central gear (5) is connected by spline pair with the tail end of input shaft (9); Described input shaft (9) front end is the power intake that can be connected with external impetus, and the power intake of this input shaft (9) front end also is connected with moving joining of described cover plate (8) intermediate support.
4, the speed reducer of class cycloid wheel according to claim 3 and planet wheel composite structure, it is characterized in that: be shaped on endoporus in the middle of the power intake of described input shaft (9) front end and connect keyway (93), be embedded with outside framework oil seal body (94) between described input shaft (9) front end appearance and the cover plate (8); Be equipped with the first rotary bearing assembly (91) between described input shaft (9) and the bearing pin dish (6); Correspondingly, also be equipped with the second rotary bearing assembly (92) between described input shaft (9) and the cover plate (8).
5, the speed reducer of class cycloid wheel according to claim 4 and planet wheel composite structure is characterized in that: described bearing pin dish (6) is fixedlyed connected with cover plate (8) rear end; This bearing pin dish (6) also is connected with the medial segment supporting that described driving crank (3) is positioned at planetary pinion (4), and described planetary pinion (4) is fixedlyed connected with the tail end of this driving crank (3).
6, the speed reducer of class cycloid wheel according to claim 5 and planet wheel composite structure is characterized in that: be equipped with at least one bearing pin (10) on the described bearing pin dish (6), this bearing pin (10) spins fixing with described cover plate (8) rear end screw thread.
7, the speed reducer of class cycloid wheel according to claim 6 and planet wheel composite structure is characterized in that: be equipped with the 3rd rotary bearing assembly (31) between described bearing pin dish (6) and the driving crank (3); Described driving crank (3) also is shaped on another supported end (3a), and another supported end of this driving crank (3) (3a) was connected with moving joining of described cover plate (8).
8, the speed reducer of class cycloid wheel according to claim 7 and planet wheel composite structure is characterized in that: also be equipped with the 4th rotary bearing spare (32) between another supported end (3a) of described driving crank (3) and the cover plate (8); Described driving crank (3) is positioned on the intermediate section between another supported end (3a), the bearing pin dish (6) and is shaped on two eccentric shafts (3b), and this eccentric shaft (3b) was connected with moving joining of described class cycloid wheel (7).
9, the speed reducer of class cycloid wheel according to claim 8 and planet wheel composite structure, it is characterized in that: two eccentric shafts (3b) that described driving crank (3) is shaped on become 180 degree to be provided with, and also are equipped with the 5th rotary bearing spare (33) between this eccentric shaft (3b) and the described class cycloid wheel (7); Location, the rear end of cavity is fitted with capping (11) in the middle of the described shell body (1), and the left-hand end of described central gear (5) is withstood the inwall of this capping (11).
10, the speed reducer of class cycloid wheel according to claim 9 and planet wheel composite structure, it is characterized in that: described capping (11) is connected with the back-end sealing of cavity in the middle of the shell body (1), correspondingly, described cover plate (8) is connected with the forward end seal of cavity in the middle of the shell body (1); Described class cycloid wheel (7) constitutes the double reduction part with gear pin (2); The bearing pin (10) that wears on the described bearing pin dish (6) is one.
CN200920115700XU 2009-03-19 2009-03-19 Reducer with compound structure of similar cycloid gears and planetary gear CN201420836Y (en)

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Application Number Priority Date Filing Date Title
CN200920115700XU CN201420836Y (en) 2009-03-19 2009-03-19 Reducer with compound structure of similar cycloid gears and planetary gear

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Application Number Priority Date Filing Date Title
CN200920115700XU CN201420836Y (en) 2009-03-19 2009-03-19 Reducer with compound structure of similar cycloid gears and planetary gear

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101893063A (en) * 2010-07-16 2010-11-24 重庆大学 Planetary speed reducer with small tooth number difference
CN102840279A (en) * 2011-06-24 2012-12-26 住友重机械工业株式会社 Oscillating internal engaged speed reduction gear
CN103206490A (en) * 2013-02-04 2013-07-17 湖南省特斯拉科技有限公司 Rotation checkable speed reducer
CN104074929A (en) * 2013-03-29 2014-10-01 住友重机械工业株式会社 Speed reducer series
CN104999476A (en) * 2015-04-25 2015-10-28 聂进云 Joint bearing reducer of robot
CN105041884A (en) * 2015-04-25 2015-11-11 聂进云 Shell structure applied to robot joint bearing speed reducer
CN105034022A (en) * 2015-04-25 2015-11-11 聂进云 Transmission mechanism applied to speed reducer of knuckle bearing of robot
CN105972162A (en) * 2016-07-20 2016-09-28 广州市昊志机电股份有限公司 Double-geared speed reduction device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101893063A (en) * 2010-07-16 2010-11-24 重庆大学 Planetary speed reducer with small tooth number difference
CN101893063B (en) * 2010-07-16 2012-07-04 重庆大学 Planetary speed reducer with small tooth number difference
CN102840279A (en) * 2011-06-24 2012-12-26 住友重机械工业株式会社 Oscillating internal engaged speed reduction gear
CN102840279B (en) * 2011-06-24 2016-04-27 住友重机械工业株式会社 Oscillating internal engagement type speed reducer
CN103206490B (en) * 2013-02-04 2015-10-21 湖南省特斯拉科技有限公司 The speed reducer that check rotates
CN103206490A (en) * 2013-02-04 2013-07-17 湖南省特斯拉科技有限公司 Rotation checkable speed reducer
CN104074929A (en) * 2013-03-29 2014-10-01 住友重机械工业株式会社 Speed reducer series
CN104074929B (en) * 2013-03-29 2016-05-25 住友重机械工业株式会社 Decelerator series
CN104999476A (en) * 2015-04-25 2015-10-28 聂进云 Joint bearing reducer of robot
CN105041884A (en) * 2015-04-25 2015-11-11 聂进云 Shell structure applied to robot joint bearing speed reducer
CN105034022A (en) * 2015-04-25 2015-11-11 聂进云 Transmission mechanism applied to speed reducer of knuckle bearing of robot
CN105972162A (en) * 2016-07-20 2016-09-28 广州市昊志机电股份有限公司 Double-geared speed reduction device

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Granted publication date: 20100310

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