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Permanent magnet linear motor-based throwing platform

A permanent magnet linear motor and platform technology, applied in the direction of throwing machine, electrical components, electromechanical devices, etc., can solve the stress requirements of the thrown object, high structural requirements, insurmountable hysteresis dead zone, and poor controllability and other problems to achieve the effect of shortening braking time, shortening braking distance and low cost

Active Publication Date: 2011-09-21
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although belt transmission has certain controllability, its hysteresis dead zone is an uncontrollable section that cannot be overcome.
Other air-hydraulic, rubber band, etc. throwing devices have poor controllability, and have high stress requirements and structural requirements for the objects being thrown.
The efficiency of the above-mentioned traditional throwing devices is not high

Method used

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  • Permanent magnet linear motor-based throwing platform
  • Permanent magnet linear motor-based throwing platform
  • Permanent magnet linear motor-based throwing platform

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Experimental program
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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0028] Such as figure 1 , figure 2 and image 3 As shown, the throwing platform based on the permanent magnet linear motor of the present invention includes a base 1, two oppositely arranged iron yoke back plates 7, stator teeth 3, a permanent magnet mover 4, an eddy current braking device 5 and a control mechanism 6 The iron yoke backboard 7 is fixed on the base 1, the base 1 is provided with a baffle 101, the baffle 101 is arranged at the tail end of the iron yoke backboard 7, and more than one brake spring 2 is arranged on the baffle 101. Each iron yoke back plate 7 is installed with more than one row of stator teeth 3 along the height direction, and two stator teeth 3 at corresponding positions on different iron yoke back plates 7 form a group to form a double-sided permanent magnet linear motor. Moreover, the permanent magnet lin...

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Abstract

The invention discloses a permanent magnet linear motor-based throwing platform, which comprises a base, two oppositely arranged iron yoke backplates, stator teeth, a permanent magnet rotor, an eddy current braking device and a control mechanism, wherein the iron yoke backplates are fixed on the base; each iron yoke backplate is provided with more than one row of stator teeth along the height direction; two stator teeth at corresponding positions on the different iron yoke backplates form a group; the stator teeth are wound with a three-phase winding connected with the control mechanism; the permanent magnet rotor is arranged in a motion channel formed between the two iron yoke backplates; the motion channel is divided into a front-end accelerating section and a tail-end braking section along the motion acceleration direction of the permanent magnet rotor; and the tail-end braking section is provided with the eddy current braking device. The permanent magnet linear motor-based throwing platform has the advantages of simple and compact structure, low cost, good reliability, large throwing force, and stable structure.

Description

technical field [0001] The invention mainly relates to the application field of a permanent magnet linear motor, in particular to a throwing platform using a permanent magnet linear motor. Background technique [0002] The throwing platform has a wide range of applications, such as bulk agricultural products, industrial cargo, aerospace industry, etc. In the past, the throwing platform was based on a rotating motor and a belt transmission, also based on air pressure, hydraulic pressure, and elastic bodies such as rubber bands. The aerospace industry may also use a throwing device with a higher thrust. Although belt transmission has certain controllability, its hysteresis dead zone is an uncontrollable section that cannot be overcome. Other air-hydraulic, rubber band, etc. throwing devices have poor controllability, and have high stress requirements and structural requirements for the objects to be thrown. The efficiency of the above-mentioned traditional throwing devices i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G31/00H02K41/02
Inventor 吴峻周文武赵宏涛陆珊珊
Owner NAT UNIV OF DEFENSE TECH
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