Permanent magnetic synchronous motor driven automatic escalator and method for implcmenting regular stopping distance requirement for automatic pavement (õ‘î´“ë

A technology for permanent magnet synchronous motors and moving walks, which is applied to escalators, transportation and packaging, etc., and can solve problems such as the inability to ensure that escalators and moving walks meet the requirements of the stopping distance

Inactive Publication Date: 2007-10-17
SHANGHAI MITSUBISHI ELEVATOR CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the additional brake is configured, because the braking torque of the additional brake is required to be at least greater than the torque of the full-load passenger load, when the additional brake and the working brake work at the same time, it will be even more difficult to ensure that the empty escalator and moving walkway meet the braking distance. requirements

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
  • Permanent magnetic synchronous motor driven automatic escalator and method for implcmenting regular stopping distance requirement for automatic pavement (õ‘î´“ë
  • Permanent magnetic synchronous motor driven automatic escalator and method for implcmenting regular stopping distance requirement for automatic pavement (õ‘î´“ë
  • Permanent magnetic synchronous motor driven automatic escalator and method for implcmenting regular stopping distance requirement for automatic pavement (õ‘î´“ë

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Referring to Fig. 1, the present invention realizes the stopping distance requirement by increasing the speed of the flywheel. A transmission pair 3 is installed between the shaft end of the permanent magnet synchronous motor 1 and the flywheel 2, shown as a transmission chain 4, to increase the speed of the flywheel 2, and then increase the inertia of the flywheel 2 converted to the brake shaft, that is, the motor shaft. Use a working brake braking torque to achieve the required stopping distance.

[0012] What Figure 2 describes is that the delay braking of the additional brake is realized by a capacitor circuit. In additional brake Bk a A capacitor C is connected in parallel at both ends of the 4 , its anode and relay K 2 The normally closed contact is connected, the negative pole is connected with the inductance L 2 connect. When the speed of the escalator or moving walk exceeds the set value (less than 1.4 times the rated speed) or reverses, the control board ...

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 present invention relates to a method for making permosyn motor driven automatic escalator and automatic passenger footway implement brake stop distance. A speed-increasing flywheel is added, and a working brake can be used to meet brake stop requirement by means of its brake moment, and when an auxiliary brake is added, the action of the auxiliary brake is legged behind the action of the working brake, but when the speed exceeds the set value (less than 1.4 times of rated speed) or when the defined running direction of the step, pedal and rubber belt is changed, the auxiliary brake can promptly act.

Description

technical field [0001] The invention relates to a method for driving an escalator and a moving walk with a permanent magnet synchronous motor to realize the requirements on the stopping distance in safety regulations (such as EN115 "Safety Specifications for Manufacture and Installation of Escalators and Moving Walks"). Background technique [0002] At present, the drives in escalators and moving walks all use asynchronous motors, and the drive system is composed of reducers, brakes and other components. Due to the large number of components in this system, the workload in the manufacturing and assembly process is relatively large. The synchronous speed of the asynchronous motor is relatively high, generally at 1500rpm or 1000rpm, which is more convenient for realizing the requirements of the braking and stopping distance of no-load and loaded downward running in safety regulations. Since the inherent inertia of the escalator and moving walkway is relatively small compared ...

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): B66B25/00
Inventor 竺荣华刚
Owner SHANGHAI MITSUBISHI ELEVATOR CO LTD
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap