CN2867709Y

CN2867709Y - Synchronous electromagnetic decelerator

Info

Publication number: CN2867709Y
Application number: CN 200520047545
Authority: CN
Inventors: 马冶安
Original assignee: Shanghai Chengfeng Electronic Science & Technology Co Ltd
Current assignee: Shanghai Chengfeng Electronic Science & Technology Co Ltd
Priority date: 2005-12-15
Filing date: 2005-12-15
Publication date: 2007-02-07
Anticipated expiration: 2015-12-15

Abstract

A synchronous electromagnetic speed reducer as substitute of conventional mechanical reducer is suitable for working occasions with synchronization, long speed and large torque. The speed reducer comprises a stator made of stator punching dies with teeth-shape periphery, and a rotator made of rotator punching dies with teeth-shape periphery, high-performance permanent magnetic sheet and output shaft, from which a low-speed and large-torque rotation speed can be outputted directly, the rotation speed being strictly synchronous with power frequency. Compared with conventional mechanical reducer, the electromagnetic speed reducer obviates the need for lubricant, lubricating unit and fan, and its vibration and noise are reduced by 50%, efficiency is improved by 10%, size and weight are reduced by 50%, and cost is reduced by 25-40%. The utility model offers good comprehensive power-saving effect and good economic and social benefits.

Description

Synchronous electromagnetic deceleration machine

Technical field

Synchronous electromagnetic deceleration machine relates to the manufacturing technology of reductor, is applicable to synchronously, the workplace of high pulling torque, low cruise, and alternative existing machinery reductor uses.

Background technology

Existing traditional reductor all is to be combined by motor (or diesel engine or other power set) and machine driving decelerator (comprising gear reduction, planet cycloid deceleration, worm gear-endless screw deceleration etc.), provide the input speed of high rotational speed (being generally 1500r/min) by motor or other power set as reductor, many drive disk assemblies (must carry out transmission lubrication) through the decelerator unit, slow down by certain speed ratio, remove to satisfy the rotating speed and the torque request of load again by the output shaft output slow-speed of revolution of decelerator.Because traditional reductor is normally by the combining of power set and two separate units of decelerator, so the volume heaviness of traditional reductor, weight also are both sums.In addition, many drive disk assemblies as decelerator, they will consume a part of energy by high speed rotating in the transmittance process that slowly runs, cause power transmission loss, so the efficient of itself is generally below 90%, and be must be prerequisite in good transmission lubrication condition, after adding lubricant (oil), must take by decelerator seals such as oil sealing again, with grease proofing leakage.Yet owing to reasons such as temperature cause the volatilization or the leakage of oil of lubricant (oil), perhaps freezingly cause the dry grinding of drive disk assembly to become the very common hidden danger of traditional reductor, these hidden danger produce the damage that vicious circle will cause reductor as further developing.And traditional reductor is to low-range reduction by at a high speed, power source existence at a high speed just must cause relatively large noise and vibration, so the noise of this class reductor and vibration are also just bigger, in addition, the combination of motor and reductor is because there is 5～7 times starting current, just can not be operated in needs the occasion of frequent starting and frequent rotating to use, otherwise can cause temperature rise too high and burn motor.Then there is revolutional slip in asynchronous motor, can not make load do synchronous operation, though in theory as if asynchronous motor also can reach the theoretical value requirement of low speed and big torque, but this is to be difficult to realize on motor manufacturing technology, as: for the small machine of three-phase 100 utmost point 60W, the minimum line embedding groove of wanting of its stator core is 3 * 100=300 groove, and the diameter of stator bore of small machine has only about 70mm, launch girth at it and make the groove tooth and divide equally i.e. 70 * 3.1416 ÷ 600=0.37mm, this calculates from the making of jet-bedding mould or rule and electromagnetism and all will be difficult to realize.So low power asynchronous machine number of poles is all placed restrictions in the scope of 2～4 utmost points usually, even number of poles medium-sized or that large-size machine is maximum also is no more than 24 utmost points, and asynchronous motor can't be realized synchronous operation.And for the reductor such as fuel oil power, it is the workplace of incompatibility frequent starting and rotating more, and is solved at the brake that also will rely on attachment device aspect the braking (brake).

Goal of the invention

In order to overcome above-mentioned deficiency, the utility model proposes a kind of change existing mechanical reductor, promptly get rid of all mechanically operated reducing gears, utilize that electromagnetic technique is realized synchronously, the synchronous electromagnetic deceleration machine of low speed, high pulling torque operation.

The utility model reductor is by output shaft, front end housing, fore bearing, support, stator, rotor, rear bearing, rear end cap, coil, the permanent magnetism sheet constitutes, wherein because dentation is made in the inner rim of stator punching and the neighboring of rotor, therefore, stator punching is after the press fit that changes, becoming inwall is the reductor stator of groove, installs coil in that the wire casing of stator is embedded; Rotor punching fuses on output shaft and with output shaft by the press fit that changes with high-performance permanent magnetism sheet, becomes the reductor rotor that the surface is fluted and have magnetic.Reductor is when work, the electromagnetism that stator produces produces electromagnetic action by the groove and the groove on the magnet rotor outer wall of its inwall, reach electromagnetic deceleration, directly the output shaft output by the reductor rotor keeps synchronous low speed, the rotating speed of big torque with supply frequency, as 40/min, 60/min, 115/min, 214min, and the rotating speed of the low speed of need of work, big torque.

Characteristics of the present utility model are: its adopts inner rim is the coincide synchronous electromagnetic deceleration machine of the rotor formation that rotor punching that the stator made and neighboring be dentation and high-performance permanent magnetism sheet and output shaft make of the stator punching of dentation, realized slowing down by electromagnetic technique, save the mechanism of the mechanical reduction of existing deceleration machine, therefore also need not be lubricated, not exist freezingly to cause dry grinding or the hidden danger of leakage of oil; Because complete machine moves under low speed, traditional external fan cooling of passing through does not need, fan and protective cover thereof have been cancelled, the length dimension of the utility model reductor is further shortened, volume and weight all can reduce 50%, and saved the required supporting space of reductor, compare with the traditional mechanical reductor: noise reduces by 50%; Vibration reduces 50%; Efficient has improved 10%; Because of the present utility model rational in infrastructure, also can improve more than 10 times useful life.And the utility model reductor can be used in the workplace that needs frequent starting and rotating fully, its rotating speed and supply frequency strict synchronism, and do not have any revolutional slip; Can self-retention (brake) and do not need any attachment device, production cost has reduced by 25%～40%.Synthesis energy saving effect of the present utility model is better, and environmental protection is also had positive effect, has good economic and social benefit.

Description of drawings

Accompanying drawing is the utility model embodiment schematic diagram, wherein:

Fig. 1 is the utility model structural representation,

Fig. 2 is that the utility model A-A cuts open schematic diagram,

Among the figure: output shaft 1, front end housing 2, fore bearing 3, support 4, stator 5, rotor 6, coil 7, rear bearing 8, rear end cap 9, tooth 10, permanent magnetism sheet 11, tooth 12.Stator 5 in the A-A generalized section, the generalized section of rotor 6 also can be used as stator punching, the schematic diagram of rotor punching.

Embodiment

The utility model is by output shaft 1, front end housing 2, and fore bearing 3, support 4, stator 5, rotor 6, coil 7, rear bearing 8, rear end cap 9, permanent magnetism sheet 11 constitutes.The stator punching that stator 5 is equipped with tooth 10 by inner rim forms through press fit repeatedly, becomes the reeded reductor stator of inwall, and coil 7 is arranged in the wire casing on the stator 5.Rotor 6 by the neighboring be equipped with the rotor punching of tooth 12 and intercalation the high-performance permanent magnetism sheet between rotor punching 11 through press fit repeatedly on output shaft 1 and fuse and form, become the reductor rotor that the surface is fluted and have magnetic.Stator 5 is fixed in the support 4, and rotor 6 is by front end housing 2, fore bearing 3, and rear bearing 8, rear end cap 9 activities are fixed in the chamber at stator 5 middle parts, and the output shaft 1 of rotor 6 stretches out front end housing 2.

After the utility model energized, the electromagnetism of stator 5 generations produces electromagnetic actions by the tooth 10 and the tooth on rotor 6 outer walls 12 of its inwall, directly exports the slow-speed of revolution synchronous with the supply frequency maintenance, the rotating speed of big torque by the output shaft of reductor rotor.

Claims

1. synchronous electromagnetic deceleration machine, by output shaft (1), front end housing (2), fore bearing (3), support (4), stator (5), rotor (6), coil (7), rear bearing (8), rear end cap (9), permanent magnetism sheet (11) is formed, it is characterized in that: stator (5) is equipped with tooth (10) by inner rim stator punching forms through the press fit that changes, become the reeded reductor stator of inwall, coil (7) is arranged in the wire casing on the stator (5); Rotor (6) is equipped with the rotor punching of tooth (12) and the permanent magnetism sheet (11) of intercalation between rotor punching by the neighboring and goes up and fuse at output shaft (1) through press fit repeatedly and form, and becomes the reductor rotor that the surface is fluted and have magnetic; Stator (5) is fixed in the support (4), and rotor (6) is by front end housing (2), fore bearing (3), and rear bearing (8), rear end cap (9) activity is fixed in stator (5) center lumen.