Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A front-encoder disc type ultra-thin permanent magnet synchronous traction machine

A technology of synchronous traction machine and encoder, which is applied in the direction of magnetic circuit, electromechanical device, control mechanical energy, etc., can solve the problem that the pre-encoder cannot be replaced normally, affects the operation accuracy and life of the pre-encoder, and cannot provide To solve problems such as encoder pre-solution, to reduce the risk of encoder damage, improve the effect of encoder damage or waveform distortion, and improve heat dissipation

Active Publication Date: 2020-11-27
HANGZHOU AOLIDA ELEVATOR
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to break the monopoly of this technology, many attempts have been made in the industry, but none of them can provide an encoder front-end solution different from this technology
Due to the ultra-thin design of the traction machine, the distance between the two bearings is relatively short, and the mechanical stability of the rotor is poor. The machine is installed on the back of the guide rail, and the front encoder cannot be replaced normally.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A front-encoder disc type ultra-thin permanent magnet synchronous traction machine
  • A front-encoder disc type ultra-thin permanent magnet synchronous traction machine
  • A front-encoder disc type ultra-thin permanent magnet synchronous traction machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] Embodiment: An ultra-thin permanent magnet synchronous traction machine includes a frame 10 on which a stator 11 is provided; and a rotor 20 on which is provided a magnet covering the coil of the stator 11 and forming a radial magnetic field with it 21. The tooth shape of the stator 11 is T-shaped; the rotor 20 is a disc-shaped shell with one end uplifted. The rotor 20 is provided with a shaft 22 on the inner side of the uplift that is rotatably matched with the base 10. The shaft 22 is provided with a front bearing and a rear bearing. Bearing, the rotor 20 is provided with a traction sheave 30 on the outside of the bulge; it also includes a brake 40, an encoder 50 and a junction box that cooperate with the rotor 20.

[0042] The rotor hub and the shaft 22 are integrated or separated, and the permanent magnets are fixed on the inner surface of the hub to form a radial magnetic field structure with the stator 11. The magnetic tension is symmetrically offset, and there is no ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an encoder preposed disc-type ultrathin permanent magnet synchronous traction machine, and the machine comprises a machine base (10), wherein a stator (11) is arranged on the machine base (10); and a rotor (20) which is provided with a magnet (21) which covers the coil of the stator (11) and forms a radial magnetic field with the coil of the stator (11). The rotor (20) is adisc-shaped shell with one protruding end, and a shaft (22) matched with the machine base (10) in a rotating mode is arranged on the protruding inner side of the rotor (20); a front bearing and a rear bearing are arranged on the shaft (22), and a traction wheel (30) is arranged at the protruding outer side of the rotor (20). The machine also comprises a brake (40) and an encoder (50) which are matched with the rotor (20). The machine is reasonable in stress, low in cost, high in strength, long in service life, capable of being disassembled on site and maintained and the like, small in thickness and high in shaft utilization rate.

Description

Technical field [0001] The invention relates to an elevator permanent magnet synchronous traction machine, in particular to an encoder front disc type ultra-thin permanent magnet synchronous traction machine. Background technique [0002] The traction machine is the power equipment of the elevator. In 1996, Finland KONE invented the EcoDisc permanent magnet synchronous traction machine. This type of disc motor adopts an axial magnetic field layout to reduce the front and rear thickness of the synchronous traction machine. At the same time, it encodes the rotation speed of the traction machine. The traction machine is placed on the side of the traction machine, and the speed of the traction machine is transmitted to the side-mounted encoder through a gear and ring gear transmission mechanism. [0003] This design effectively reduces the space occupied by the synchronous traction machine inside the hoistway, and provides great convenience for the layout of the traction machine in th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/12H02K1/27H02K5/16H02K5/173H02K5/18H02K11/21H02K7/14B66B11/04
CPCB66B11/04H02K1/12H02K1/2786H02K5/161H02K5/1732H02K5/18H02K7/14H02K11/21
Inventor 沈寅王亮简显科李美光李小兵施群鸿赵亚南
Owner HANGZHOU AOLIDA ELEVATOR
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products