CN104401362B - The two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives - Google Patents

The two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives Download PDF

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Publication number
CN104401362B
CN104401362B CN201410607040.2A CN201410607040A CN104401362B CN 104401362 B CN104401362 B CN 104401362B CN 201410607040 A CN201410607040 A CN 201410607040A CN 104401362 B CN104401362 B CN 104401362B
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China
Prior art keywords
motor
switch
permanent magnet
magnet synchronous
magnetic flow
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Expired - Fee Related
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CN201410607040.2A
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Chinese (zh)
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CN104401362A (en
Inventor
赵升吨
杨雪松
范淑琴
李靖祥
钟玮
刘虹源
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Xian Jiaotong University
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Xian Jiaotong University
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Priority to CN201410607040.2A priority Critical patent/CN104401362B/en
Publication of CN104401362A publication Critical patent/CN104401362A/en
Application granted granted Critical
Publication of CN104401362B publication Critical patent/CN104401362B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives, comprise switch magnetic flow permanent magnet synchronous motor, electric machine main shaft is connected with primary sun wheel and fixes, after two-stage planetary drivetrain slows down, drive ball-screw to rotate, feed screw nut band movable slider combines, throw rod moves along line style rail direct line, export straight line switching forces, when conversion direction changes, switch magnetic flow permanent magnet synchronous motor reverses, via planetary reduction gear, ball screw assembly, and slide block combination, throw rod exports straight pull, complete switching motion, simplified structure of the present invention, improve precision, ensure reliability.

Description

The two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives
Technical field
The present invention relates to railway switch machine technical field, be specifically related to the two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives.
Background technology
Point machine is a kind of track switch crossover kit generally used in field of track traffic, it can change the connection direction of track switch as required, locking track switch after switching motion completes, prevent external force from changing track switch on-state, and expression and supervision are provided to the coupled condition between tongue and stock rail.Along with track traffic is constantly raised speed, track amount is on the increase, and the connection between track switch becomes increasingly complex, and therefore has higher requirement to the reliability of switch machine work and responsiveness.Existing electric switch machine adopts DC motor or AC induction motor to drive, motor output torque drives rack-and-gear or the ball-screw motion of next stage after multi-stage gear auxiliary driving, the tediously long complex structure that makes of messenger chain is huge, and open loop system also must bring control accuracy and the lower problem of reliability.Compared to DC motor or AC asynchronous motor, AC servomotor when speed governing can more accurate and flexible, low speed time the torque that exports large and coordinates with computing machine and can realize more accurate failure-free and control, therefore become more and more important driver element.The physical construction transmission link of the advantage of AC servomotor after simplifying is combined, improve work efficiency, the loss of significance at transmission link is reduced greatly, therefore the utilization of this technology on switch machine will improves the performance of switch machine greatly.
Therefore invent the two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives and meet the needs that railway transportation department develops switching device, the shortcoming such as which overcome traditional switch machine complex structure, efficiency and precision is lower, reliability is low.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of this invention is to provide the two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives, simplified structure, raising precision, guarantee reliability.
For achieving the above object, the technical solution used in the present invention is:
The two-stage planetary reduction gear formula switch machine that switch magnetic flow permanent magnet synchronous motor drives, comprise the stator assembly 8 of switch magnetic flow permanent magnet synchronous motor, stator assembly 8 is fixed on motor side shell 7; Rotor 9 is connected with electric machine main shaft 10 key; Electric machine main shaft 10 is connected with back end cover for motor 12 with motor front end cover 1, and is supported by motor bearings 5; First oil sealing 13 is arranged on back end cover for motor 12 near rotor side; Motor front end cover 1 is connected with back end cover for motor 12, motor side shell 7 and switch machine casing 34; Magslip assembly 2 is fixed on electric machine main shaft 10 rear end, magslip shell and motor front end cover 1 interference fit; Manual shaft end cap 4 is connected with electric machine main shaft 10 upper end; Electric machine main shaft 10 lower end is connected with primary sun wheel 18 key; Uniform four primary planet wheel 17 of primary sun wheel 18 exterior annular, and utilize external toothing 16 to lead; External toothing 16 is fixed on retarder side shell 14; Primary planet wheel 17 is connected with primary planet frame 20; Primary planet frame 20 is connected with secondary input shaft 22 key; Secondary input shaft 22 is connected with secondary sun wheel 23; Secondary sun wheel 23 is connected with secondary pinion carrier 25 by secondary satellite gear 19, planet post 21; Secondary pinion carrier 25 is connected with ball-screw 26; Retarder end cap 24 is connected with retarder side shell 14; Ball-screw 26 front end is supported in retarder side shell 14 by tapered roller bearing 41; Second oil sealing 30 is installed outside tapered roller bearing 41; Ball-screw 26 rear end utilizes bearing 37 to be supported in leading screw sleeve 36; Leading screw sleeve 36 is connected with switch machine casing 34; Feed screw nut 40 and slide block combine 32 and are connected; Slide block combination 32 is arranged on line style guide rail 33; Throw rod 35 and slide block combine 32 and are connected; Two indication rod 39 two ends are connected with front sleeve 42 and rear sleeve 38; The motor driver 31 of switch magnetic flow permanent magnet synchronous motor is arranged in casing.
Described manual shaft end cap 4 is threaded connection with electric machine main shaft 10, and after connection completes, ensure that cylindrical plug 3 is connected.
Described switch magnetic flow permanent magnet synchronous motor spindle nose processes hexagonal input shaft, can manually ensure that track switch is changed when motorized motions et out of order, manual shaft end cap 4 and electric machine main shaft 10 are switched on or switched off by cylindrical plug 3 and realize electronic interlocking simultaneously, ensure safety during manually input.
The invention has the advantages that:
Adopt switch magnetic flow permanent magnet synchronous motor to replace DC machine in original switch machine or AC induction motor, improve control accuracy.
By switch magnetic flow permanent magnet synchronous motor and speed reduction gearing, actuating unit arranged in co-axial alignment, greatly reduce radial dimension, in casing, provide enough position with mounted motor actuator; Motor is arranged on the outer easy access of casing and replacing.
Adopt line style guide rail to carry out leading and greatly can reduce the resistance that actuating unit is subject in motion process, effectively improve switch machine work efficiency.
Switch magnetic flow permanent magnet synchronous motor spindle nose processes hexagonal input shaft, can manually ensure that track switch is changed when motorized motions et out of order; Manual shaft end cap and electric machine main shaft are switched on or switched off circuit by cylindrical plug and can realize electronic interlocking simultaneously, ensure safety during manually input.
Accompanying drawing explanation
Accompanying drawing is vertical view cutaway drawing of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
With reference to accompanying drawing, the two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives, comprise the stator assembly 8 of switch magnetic flow permanent magnet synchronous motor, stator assembly 8 is fixed on motor side shell 7 by anaerobic adhesive; Rotor 9 is connected with electric machine main shaft 10 key; The air gap of 0.5 ~ 1mm is left between stator assembly 8 and rotor 9; Electric machine main shaft 10 is connected with back end cover for motor 12 with motor front end cover 1, and is supported by motor bearings 5; First oil sealing 13 is arranged on back end cover for motor 12 near rotor side; Motor front end cover 1 is connected with back end cover for motor 12, motor side shell 7 and switch machine casing 34; Magslip assembly 2 is fixed on electric machine main shaft 10 rear end by key and jam nut, magslip shell and motor front end cover 1 interference fit; Manual shaft end cap 4 is connected with electric machine main shaft 10 upper end; Electric machine main shaft 10 lower end is connected with primary sun wheel 18 key; Uniform four primary planet wheel 17 of primary sun wheel 18 exterior annular, and utilize external toothing 16 to lead; External toothing 16 is fixed on retarder side shell 14; Primary planet wheel 17 is connected with primary planet frame 20; Primary planet frame 20 is connected with secondary input shaft 22 key; Secondary input shaft 22 is connected with secondary sun wheel 23; Secondary sun wheel 23 is connected with secondary pinion carrier 25 by secondary satellite gear 19, planet post 21; Secondary pinion carrier 25 is connected with ball-screw 26; Retarder end cap 24 is connected with retarder side shell 14; Ball-screw 26 front end is supported in retarder side shell 14 by tapered roller bearing 41; Second oil sealing 30 is installed outside tapered roller bearing 41; Ball-screw 26 rear end utilizes bearing 37 to be supported in leading screw sleeve 36; Leading screw sleeve 36 is connected with switch machine casing 34; Feed screw nut 40 and slide block combine 32 and are connected; Slide block combination 32 is arranged on line style guide rail 33; Throw rod 35 and slide block combine 32 and are connected; Two indication rod 39 two ends are connected with front sleeve 42 and rear sleeve 38; The motor driver 31 of switch magnetic flow permanent magnet synchronous motor is arranged in casing; The rotary motion of switch magnetic flow permanent magnet rotor 9 drives leading screw to rotate after two-stage planetary reduction gear, and the screw sweeping action bar be connected with slide plate moves along line style rail direct line, is realized the switching motion of switch machine by the rotating controlling motor.
Described manual shaft end cap 4 is threaded connection with electric machine main shaft 10, has connected rear guarantee cylindrical plug 3 and has connected.
Described switch magnetic flow permanent magnet synchronous motor spindle nose processes hexagonal input shaft, can manually ensure that track switch is changed when motorized motions et out of order, manual shaft end cap 4 and electric machine main shaft 10 are switched on or switched off by cylindrical plug 3 and realize electronic interlocking simultaneously, ensure safety during manually input.
Principle of work of the present invention is:
Throw rod 35 is initially located in retracted mode, opening switch flux permanent magnet synchronous motor, rotor 9 drives primary sun wheel 18 to rotate under the effect of electromagnetic torque, after double pinions slows down, by secondary pinion carrier 25, ball-screw 26 is exported in torque, feed screw nut 40 and slide block combine 32 be bolted after lead through line style guide rail 33, pivoting movement is limited, therefore the throw rod 35 that linear movement output being passed to by linear thrust is connected with slide plate is as switching forces, when conversion direction changes, switch magnetic flow permanent magnet synchronous motor reverses, via double planetary reduction gear, ball screw assembly, and guide rail throw rod array output straight pull, complete switching motion.

Claims (3)

1. a two-stage planetary reduction gear formula switch machine for switch magnetic flow permanent magnet synchronous motor driving, comprise the stator assembly (8) of switch magnetic flow permanent magnet synchronous motor, stator assembly (8) is fixed on motor side shell (7); Rotor (9) is connected with electric machine main shaft (10) key; Electric machine main shaft (10) is connected with back end cover for motor (12) with motor front end cover (1), and by motor bearings (5) supporting; First oil sealing (13) is arranged on back end cover for motor (12) near rotor side; Motor front end cover (1) is connected with back end cover for motor (12), motor side shell (7) and switch machine casing (34); Magslip assembly (2) is fixed on electric machine main shaft (10) rear end, magslip shell and motor front end cover (1) interference fit; Manual shaft end cap (4) is connected with electric machine main shaft (10) upper end; Electric machine main shaft (10) lower end is connected with primary sun wheel (18) key; Uniform four primary planet wheel (17) of primary sun wheel (18) exterior annular, and utilize external toothing (16) to lead; External toothing (16) is fixed on retarder side shell (14); Primary planet wheel (17) is connected with primary planet frame (20); Primary planet frame (20) is connected with secondary input shaft (22) key; Secondary input shaft (22) is connected with secondary sun wheel (23); Secondary sun wheel (23) is connected with secondary pinion carrier (25) by secondary satellite gear (19), planet post (21); Secondary pinion carrier (25) is connected with ball-screw (26); Retarder end cap (24) is connected with retarder side shell (14); Ball-screw (26) front end is supported in retarder side shell (14) by tapered roller bearing (41); The second oil sealing (30) is installed in tapered roller bearing (41) outside; Ball-screw (26) rear end utilizes bearing (37) to be supported in leading screw sleeve (36); Leading screw sleeve (36) is connected with switch machine casing (34); Feed screw nut (40) combines (32) and is connected with slide block; Slide block combination (32) is arranged on line style guide rail (33); Throw rod (35) combines (32) and is connected with slide block; Two indication rod (39) two ends are connected with front sleeve (42) and rear sleeve (38); The motor driver (31) of switch magnetic flow permanent magnet synchronous motor is arranged in casing.
2. the two-stage planetary reduction gear formula switch machine of a kind of switch magnetic flow permanent magnet synchronous motor driving according to claim 1, it is characterized in that: described manual shaft end cap (4) and electric machine main shaft (10) are threaded connection, and after connection completes, ensure that cylindrical plug (3) is connected.
3. the two-stage planetary reduction gear formula switch machine of a kind of switch magnetic flow permanent magnet synchronous motor driving according to claim 1, it is characterized in that: described switch magnetic flow permanent magnet synchronous motor spindle nose processes hexagonal input shaft, can manually ensure that track switch is changed when motorized motions et out of order, manual shaft end cap (4) and electric machine main shaft (10) are switched on or switched off by cylindrical plug (3) and realize electronic interlocking simultaneously, ensure safety during manually input.
CN201410607040.2A 2014-10-31 2014-10-31 The two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives Expired - Fee Related CN104401362B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410607040.2A CN104401362B (en) 2014-10-31 2014-10-31 The two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410607040.2A CN104401362B (en) 2014-10-31 2014-10-31 The two-stage planetary reduction gear formula switch machine that a kind of switch magnetic flow permanent magnet synchronous motor drives

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CN104401362A CN104401362A (en) 2015-03-11
CN104401362B true CN104401362B (en) 2016-02-24

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Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201369631Y (en) * 2008-12-23 2009-12-23 无锡市江南微电机厂 Permanent magnet direct-current planetary speed reduction motor
CN101943247B (en) * 2010-09-10 2012-06-27 大连交通大学 Cycloid planetary speed reducer of rapid point machine
DE102012108635B4 (en) * 2012-09-14 2019-12-24 Voestalpine Signaling Sainerholz Gmbh Device for changing the tongue rails of a switch

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Granted publication date: 20160224

Termination date: 20181031