Alternating current asynchronous gearless speed change tractor

A variable speed traction machine, gearless technology, applied to elevators, transportation and packaging in buildings, etc., can solve the problems of complex assembly process, inability to disassemble the machine for maintenance, high temperature demagnetization, etc., achieving low noise, low price and environmental protection , the effect of running smoothly

Pending Publication Date: 2019-12-13
SUZHOU TAILING ELEVATOR
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional AC gearless traction machine is a permanent magnet synchronous gearless traction machine. Its disadvantage is that a large number of permanent magnets containing rare earth materials are used, which are expensive, cause serious environmental pollution, and have the risk of high temperature demagnetization. Steel, the assembly process is complicated, and the on-site after-sales service cannot be disassembled for maintenance

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  • Alternating current asynchronous gearless speed change tractor

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the accompanying drawings in the embodiments of the application. Apparently, the described embodiments are only part of the embodiments of the application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

[0020] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purpos...

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Abstract

The invention provides an alternating current asynchronous gearless speed change tractor. The tractor comprises a three-phase asynchronous motor, and a traction wheel fixed to an output shaft of the three-phase asynchronous motor. The three-phase asynchronous motor is further provided with an encoder, and a brake for having a braking effect on a traction wheel shaft. The three-phase asynchronous motor comprises a stator shell, a stator arranged in the stator shell, and a rotor arranged on an outer ring of the output shaft. A front end cover and a rear end cover are arranged at the two ends ofthe stator shell correspondingly. The brake and the encoder are installed on the rear end cover. According to the alternating current asynchronous gearless speed change tractor, a stator assembly is composed of a stator iron core and an enameled copper wire, a cast-aluminum rotor is adopted as the rotor, high temperature resistance is achieved, the structure is simple, assembling is convenient, incomparison with permanent magnet steel, the price is lower, and environmental friendliness is achieved. Site installing and maintaining are convenient.

Description

technical field [0001] This application relates to an AC asynchronous gearless variable speed traction machine. Background technique [0002] The traditional AC gearless traction machine is a permanent magnet synchronous gearless traction machine. Its disadvantage is that a large number of permanent magnets containing rare earth materials are used, which are expensive, cause serious environmental pollution, and have the risk of high temperature demagnetization. Steel, the assembly process is complicated, and the machine cannot be disassembled and repaired after on-site sales. Contents of the invention [0003] The technical problem to be solved in this application is to provide an AC asynchronous gearless variable speed traction machine. [0004] In order to solve the above technical problems, the application provides an AC asynchronous gearless variable speed traction machine, the traction machine includes a three-phase asynchronous motor, a traction wheel fixed on the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B11/04
CPCB66B11/0438
Inventor 朱建新戴跃根张陈林云发
Owner SUZHOU TAILING ELEVATOR
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