CN206054640U - A kind of symmetry constraint double helical tooth planetary actuating device - Google Patents

A kind of symmetry constraint double helical tooth planetary actuating device Download PDF

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Publication number
CN206054640U
CN206054640U CN201621057091.3U CN201621057091U CN206054640U CN 206054640 U CN206054640 U CN 206054640U CN 201621057091 U CN201621057091 U CN 201621057091U CN 206054640 U CN206054640 U CN 206054640U
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China
Prior art keywords
gear
planetary
planetary gear
sun
helical tooth
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CN201621057091.3U
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Chinese (zh)
Inventor
王德伦
邱俊
董惠敏
马雅丽
钱峰
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Dalian University of Technology
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Dalian University of Technology
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Abstract

This utility model belongs to gear drive field, is related to a kind of symmetry constraint double helical tooth planetary actuating device.This utility model is by structure compositions such as sun gear, planetary gear, ring gear and planet carriers, wherein all gears are Combined herringbone gear.Ring gear, sun gear, planetary gear are Combined herringbone gear, and ring gear, sun gear, planetary gear form double helical tooth wheel set, realize axially symmetric constraint;Planetary gear arranged using axial symmetry mode with sun wheel axis as axle, realizes that radial symmetric is constrained.From in structure, realize sun gear, planet carrier, planetary gear without support full floating.The utility model small volume, carry strong, stable drive simplifies supports, saves space, reduces cost, it is to avoid the error accumulation that the Planar Mechanisms of bearings generations bring, improve the precision of Planetary Gear Transmission.

Description

A kind of symmetry constraint double helical tooth planetary actuating device
Technical field
This utility model belongs to gear drive field, is related to a kind of epicyclic gearing, more particularly, it relates to a kind of right Claim constraint double helical tooth planetary actuating device.
Background technology
Compared with Planetary Gear Transmission is driven with ordinary gear, can be with power point when most outstanding feature is transmission power Stream, such that it is able to design volume it is little, quality is little, compact conformation, therefore be used for more aero-engine, hoisting equipment, wind-powered electricity generation dress Standby, mineral products equipment etc..The gear of existing overwhelming majority planetary transmission adopts spur gear or helical gear.Spur Gear Driving weight Right low, transmission stability is poor, meets bearing capacity often through increase volume;Helical gear Transmission produces very big axial force, It is higher to bearing requirements, weaken its carrying advantage;Using monoblock type double helical tooth (patent 201310649094.0, patent 201410085781.9th, 201510550894.6) there is processing, installation difficulty in patent, increased manufacturing cost.In addition for essence How close gear train assembly (joint of robot, servosystem etc.), avoid malformation and error that motion Planar Mechanisms cause Accumulation, and problem demanding prompt solution.
Utility model content
In order to overcome the deficiencies in the prior art, especially integral herringbone gear processing, installation difficulty, it is to avoid moving link The technical barrier of Planar Mechanisms, the utility model proposes a kind of symmetry constraint double helical tooth planetary actuating device, its pass through sun gear, Planetary gear, planet carrier realize that in the symmetry constraint radially, axially gone up, from structure sun gear, planet carrier, planetary gear are complete without supporting Float.
To achieve these goals, the utility model proposes technical scheme it is as follows:
A kind of symmetry constraint double helical tooth planetary actuating device, including ring gear, sun gear, planetary gear, planet carrier, planetary gear Bearing, planet wheel spindle;Wherein ring gear includes left-handed ring gear, dextrorotation ring gear, taper bolt, hexagon socket countersunk flat cap head screw;Planet Wheel includes primary planet wheel, secondary planetary gear, straight pin A, stop round nut A;Sun gear includes main sun gear, secondary sun gear, cylinder Pin B, stop round nut B.
Wherein, ring gear, sun gear, planetary gear are Combined herringbone gear, and ring gear, sun gear, planetary gear are formed Double helical tooth wheel set, realizes axially symmetric constraint;Planetary gear is arranged using axial symmetry mode, realizes footpath with sun wheel axis as axle To symmetry constraint.
Described sun gear adopts the main sun gear of oppositely oriented tape spool with secondary sun gear with holes with shaft hole matching Mode is combined, and is installed by the way of straight pin B positioning and stop round nut B lockings.Planetary gear adopts rotation direction The primary planet wheel of contrary tape spool is combined in the way of shaft hole matching with secondary planetary gear with holes, and fixed using straight pin A The mode of position and stop round nut A lockings is installed.
Described ring gear adopts left-handed ring gear to be combined in the way of seam cooperation with dextrorotation ring gear, using circle Taper pin is positioned, and is installed by way of hexagon socket countersunk flat cap head screw couples.Planetary gear is using freely-supported support, planetary gear and planet Wheel shaft adopts interference fit joint.
Described sun gear, planet carrier are using without supporting full floating;Planet wheel bearing is without rib cylinder roller bearing Or single block border cylinder roller bearing, in planet carrier;Or planet wheel bearing is without lasso needle bearing, positioned at primary planet wheel It is interior.
Described planetary gear number is three or more than three any one axial symmetry arrangement form.
The beneficial effects of the utility model are:Combine to form herringbone bear by helical gear, by integral herringbone gear Highly difficult processing is reduced to common helical gear low difficulty processing, and proposes the new model that double helical tooth combination is installed, processing dress With simple, manufacturing cost is reduced;Sun gear, planetary gear, planet carrier are in the symmetry constraint radially, axially gone up, real from structure Existing sun gear, planet carrier, planetary gear be without supporting full floating, it is to avoid the staff cultivation of moving link, simplifies support, saves sky Between, improve the precision of Planetary Gear Transmission.
Description of the drawings
Fig. 1 is a kind of symmetry constraint double helical tooth planetary transmission structures schematic diagram of this utility model.
Fig. 2 is combination type sun gear structural representation.
Fig. 3 is combination type planetary gear structure schematic diagram.
In figure:1 left-handed ring gear;2 dextrorotation ring gears;3 taper bolts;4 secondary planetary gears;5 planet carriers;6 planet wheel bearings;7 Planet wheel spindle;8 stop round nut A;9 straight pin A;10 stop round nut B;11 main sun gears;12 straight pin B;13 secondary sun gears; 14 hexagon socket countersunk flat cap head screws;15 primary planet wheels.
Specific embodiment
With reference to the accompanying drawings and detailed description this utility model is further described, as shown in figure 1, by combination type people The symmetry constraint double helical tooth planetary actuating device of the compositions such as word tooth sun gear, planetary gear, ring gear and integral planet carrier, it is whole Covering device ring gear is fixed, sun gear input motion, planet carrier output campaign.
As shown in figure 1, the sun gear of symmetry constraint double helical tooth planetary actuating device, planet carrier, planetary gear are complete floating without supporting Dynamic, planetary gear is needed using without the support of rib cylinder roller bearing because of rotation.
As shown in figure 1, combination type ring gear is combined with dextrorotation ring gear 2 by left-handed ring gear 1, it is fixed by taper bolt Position, hexagon socket countersunk flat cap head screw 14 couple.
As shown in Fig. 2 combination type sun gear is combined with secondary sun gear 13 with holes by the main sun gear 11 of tape spool, lead to Straight pin B12 positioning is crossed, design screw thread in 13 shaft end of main sun gear is locked by stop round nut B10.
As shown in figure 3, combination type planetary gear is combined with secondary planetary gear 4 with holes by the primary planet wheel 15 of tape spool, lead to Straight pin A9 positioning is crossed, design screw thread in 15 shaft end of primary planet wheel is locked by stop round nut A8.

Claims (5)

1. a kind of symmetry constraint double helical tooth planetary actuating device, it is characterised in that including ring gear, sun gear, planetary gear, planet Frame (5), planet wheel bearing (6), planet wheel spindle (7);Wherein ring gear includes left-handed ring gear (1), dextrorotation ring gear (2), circle Taper pin (3), hexagon socket countersunk flat cap head screw (14);Planetary gear includes primary planet wheel (15), secondary planetary gear (4), straight pin A (9), stop Round nut A (8);Sun gear includes main sun gear (11), secondary sun gear (13), straight pin B (12), stop round nut B (10);It is interior Gear ring, sun gear, planetary gear are Combined herringbone gear, and ring gear, sun gear, planetary gear form double helical tooth wheel set, realize Axially symmetric constraint;Planetary gear arranged using axial symmetry mode with sun wheel axis as axle, realizes that radial symmetric is constrained;Wherein Sun gear adopts the main sun gear (11) of oppositely oriented tape spool and secondary sun gear (13) with holes to enter in the way of shaft hole matching Row combination, and installed by the way of straight pin B (12) is positioned and stop round nut B (10) is locked;Planetary gear is using rotation It is combined in the way of shaft hole matching with secondary planetary gear (4) with holes to the primary planet wheel (15) of contrary tape spool, and is adopted The mode that straight pin A (9) is positioned and stop round nut A (8) is locked is installed;Ring gear is using left-handed ring gear (1) and the right side Medial rotation gear ring (2) is combined in the way of seam cooperation, is positioned using taper bolt (3), by hexagon socket countersunk flat cap head screw (14) The mode of connection is installed;Planetary gear is supported using freely-supported, and planetary gear adopts interference fit joint with planet wheel spindle (7).
2. according to a kind of symmetry constraint double helical tooth planetary actuating device described in claim 1, it is characterised in that planet wheel spindle It is without rib cylinder roller bearing or single block border cylinder roller bearing, in planet carrier (5) to hold (6);Or planet wheel bearing (6) it is without lasso needle bearing, in primary planet wheel (15).
3. according to a kind of symmetry constraint double helical tooth planetary actuating device described in claim 1 or 2, it is characterised in that the sun Wheel, planet carrier are using without support full floating.
4. according to a kind of symmetry constraint double helical tooth planetary actuating device described in claim 1 or 2, it is characterised in that described Planetary gear number is three or more than three.
5. according to a kind of symmetry constraint double helical tooth planetary actuating device described in claim 3, it is characterised in that the planet Wheel number is three or more than three.
CN201621057091.3U 2016-09-14 2016-09-14 A kind of symmetry constraint double helical tooth planetary actuating device Active CN206054640U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621057091.3U CN206054640U (en) 2016-09-14 2016-09-14 A kind of symmetry constraint double helical tooth planetary actuating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621057091.3U CN206054640U (en) 2016-09-14 2016-09-14 A kind of symmetry constraint double helical tooth planetary actuating device

Publications (1)

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CN206054640U true CN206054640U (en) 2017-03-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106286717A (en) * 2016-09-14 2017-01-04 大连理工大学 A kind of symmetry constraint double helical tooth planetary actuating device
CN113864404A (en) * 2020-06-30 2021-12-31 中国航发商用航空发动机有限责任公司 Planetary gear box and star gear box

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106286717A (en) * 2016-09-14 2017-01-04 大连理工大学 A kind of symmetry constraint double helical tooth planetary actuating device
CN113864404A (en) * 2020-06-30 2021-12-31 中国航发商用航空发动机有限责任公司 Planetary gear box and star gear box

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