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Transmission method of tractor and permanent-magnet synchronous tractor

A traction machine and rotating shaft technology, applied in the field of traction machines, can solve the problems of difficulty in ensuring the air gap of the stator and rotor, reduce the performance of the traction machine, destroy the concentricity of the stator and the rotor, etc., so as to reduce the performance loss of the motor, reduce the bending strain, The effect of improving the processing yield

Active Publication Date: 2013-03-20
ZHEJIANG MATO DRIVE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As described in the patent No. CN201195655, although this structure can avoid the problems caused by processing a complex frame structure, when assembling the whole machine, in order to ensure that the shaft holes on the two support plates are concentric, the assembly The requirements have been improved a lot, and even if the assembly accuracy is very high, it is difficult to ensure the air gap between the stator and rotor during use
Another is to process two support plates separately, and then make the two support plates into a whole by welding, and then set up shaft holes on the support plates respectively. Since the two support plates are far apart after welding, two concentric shafts are processed. The hole is more difficult
No matter which method is used above, there is a problem, that is, when the traction wheel is stressed, the rotating shaft will be slightly deformed, resulting in damage to the concentricity of the stator and rotor, and reducing the performance of the traction machine

Method used

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  • Transmission method of tractor and permanent-magnet synchronous tractor
  • Transmission method of tractor and permanent-magnet synchronous tractor
  • Transmission method of tractor and permanent-magnet synchronous tractor

Examples

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Embodiment 1

[0020] A transmission method for a permanent magnet synchronous traction machine, characterized in that: a stator is positioned by a bearing on a rotating shaft, and a coaxially installed rotor is driven. The stator is positioned on the rotating shaft through the iron core seat and the bearing on the rotating shaft, or directly positioned on the rotating shaft through the bearing on the rotating shaft, so as to ensure the concentricity of the rotor and the stator. The connecting end of the iron core seat is connected with the support plate supporting the rotating shaft through pins or keys or with the bearing seat on the support plate for installing the load bearing, which limits the freedom of the torque direction of the iron core seat, but allows There is a certain degree of rotation in the direction of the load on the pulley. The core base or the stator is supported by the load bearing on the supporting plate and the supporting bearing on the rotating shaft, or by more than...

Embodiment 2

[0024] Transmission method is the same as embodiment 1. Another way to realize this method: a permanent magnet synchronous traction machine, constituted as figure 1 with image 3 As shown, it includes a rotating shaft 4, a traction sheave 12 on the rotating shaft 4, a stator 8, a rotor yoke 10 and a permanent magnet 9 fixed on the inside of the rotor yoke 10, and it is characterized in that: the rotor yoke 10 is fixed on the On the traction wheel 12, or as a whole with the traction wheel 12, support plates 1 are respectively provided on both sides of the traction wheel 12, a bearing seat 2 is provided on the support plate 1, and a load bearing 3 is provided in the bearing seat 2 for Support rotating shaft 4, the connecting end that is connected with iron core seat 7 by pin 6 or key on bearing block 2, the other end of iron core seat 7 is fixed on the outer ring of support bearing 11 in rotating shaft 4 middle parts. The stator 8 is installed on the iron core base 7 . The su...

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Abstract

The invention discloses a transmission method of a tractor and a permanent-magnet synchronous tractor, which is characterized in that coaxially mounted traction sheaves are driven by a bearing positioning stator arranged on a rotating shaft. The invention can ensure the concentricity of the stator and the rotor, improves the performance of the motor of the whole tractor and reduces the precision requirement on the components of the tractor.

Description

technical field [0001] The invention relates to a device for an elevator, in particular to a traction machine for an elevator. Background technique [0002] At present, the permanent magnet synchronous traction machine used for high-speed and heavy-duty elevators has two main machine structures. One is the cantilever arrangement, with the support on one side and the traction sheave on the other. This structure makes the motor The load borne by the support is too large, and due to the overhang of the cantilever beam, the deformation of the traction machine shaft is relatively large, which directly affects the service life of the traction machine, so it is rarely used in practical applications. The other is simply supported structure, which is mainly supported by supports on both sides of the traction sheave, which has the advantage of reasonable structure and can greatly reduce the deformation and internal stress of the traction machine. There are mainly two ways to realize ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B11/04
Inventor 周建华施加松周明理
Owner ZHEJIANG MATO DRIVE EQUIP
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