Elevator traction machine

A technology of elevator traction machine and motor, which is applied to elevators, mechanical equipment, transmission parts in buildings, etc., to achieve the effect of simple and compact, stable operation and compact structure

Inactive Publication Date: 2012-04-18
浙江西子富沃德电机有限公司
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide an elevator traction machine with compact ...

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Embodiment Construction

[0017] In order to make the objectives, technical solutions and beneficial technical effects of the present invention clearer, the technical content and specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described in this specification are only for explaining the present invention, and not for limiting the present invention.

[0018] see Figure 1 to Figure 3 As shown, it is a schematic diagram of the structure and installation of the embodiment of the present invention. The elevator traction machine of the embodiment of the present invention includes a motor, a gear reduction box and a traction sheave 16, wherein the motor is a permanent magnet synchronous motor, and the gear reduction box is a novel involute planetary gear reduction box with small tooth difference. The gear tooth shape of the gear reduction box is modified, and adopts the NN ty...

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Abstract

The invention provides an elevator traction machine, which comprises a permanent magnet synchronous motor, a traction wheel and a gear reducer, wherein the gear reducer is a small tooth differential planetary gear reducer, and has an external gear output structure in an NN type small tooth differential planetary drive structure; a planetary gear in the gear reducer has a double coaxial gear ring structure; and an axial distance a between a halfway line of an effective face width of an external gear and a halfway line of an effective face width of an internal gear is equal to 0 or less than or equal to 1/4 of the effective face width of the internal gear. Compared with the prior art, the elevator traction machine has a compact structure, works steadily, has high overload capacity, and has the transmission efficiency of over 90 percent; and a gear pair can be provided with a soft tooth surface, a processing technology is simple, and the cost is low.

Description

technical field [0001] The present invention relates to the technical field of elevators, in particular to an elevator traction machine for vertically moving the elevator up and down. Background technique [0002] At present, a common traction machine on the market is a toothed traction machine, which is mainly a worm gear drive type traction machine, which is driven by an asynchronous motor and driven by a worm gear reducer. The main disadvantage of this kind of traction machine is : The operation efficiency of asynchronous motor is low, the transmission efficiency of worm gear box is low, and the energy consumption of the whole machine is large. There is also a toothed traction machine which is a planetary gear transmission traction machine. The reduction box adopts an involute gear NGW planetary transmission structure. Compared with a worm gear transmission traction machine, the planetary gear transmission traction machine is more compact in structure. , The transmission...

Claims

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Application Information

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IPC IPC(8): B66B11/04F16H57/023F16H57/08
Inventor 曹树龙姚一卓赵引瑞高英李有涛
Owner 浙江西子富沃德电机有限公司
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