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Non-contact locker of single-sided permanent-magnet steel structure with closed magnetic circuit

A closed magnetic circuit, non-contact technology, applied in the field of aerospace, can solve the problem that the locker cannot meet the requirements of aerospace, and achieve the effect of simple structure, reliable operation and meeting the locking requirements

Active Publication Date: 2016-05-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of simple operation and reliable work that the existing locker cannot meet the requirements of aerospace, and provides a non-contact locker with a closed magnetic circuit single-sided permanent magnet magnetic steel structure

Method used

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  • Non-contact locker of single-sided permanent-magnet steel structure with closed magnetic circuit
  • Non-contact locker of single-sided permanent-magnet steel structure with closed magnetic circuit
  • Non-contact locker of single-sided permanent-magnet steel structure with closed magnetic circuit

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specific Embodiment approach 1

[0018] Specific implementation mode one: the following combination Figure 1 to Figure 5 , Figure 7 This embodiment is described. The non-contact locker with single-sided permanent magnet magnetic steel structure of closed magnetic circuit described in this embodiment includes a stator and a rotor, one of which is assembled with the moving parts of the device to be locked, and the other is assembled with the moving parts of the device to be locked. The stationary parts of the locking device are assembled together;

[0019] The stator includes a stator yoke 2 and two pieces of permanent magnetic steel 3; the stator yoke 2 consists of a rectangular bottom plate and two rectangular vertical plates, and the two rectangular vertical plates are arranged on the upper surface of the rectangular bottom plate in parallel and perpendicular to the bottom plate, forming a U U-shaped frame structure, the penetration direction of the U-shaped frame is the axial direction of the stator; a p...

specific Embodiment approach 2

[0032] Specific implementation mode two: the following combination Figure 6 This embodiment will be described. This embodiment will further describe Embodiment 1. The lower end of the rotor yoke 1 is arc-shaped; the upper ends of the two rectangular vertical plates in the stator yoke 2 are arc-shaped.

[0033] When made into an engineered product, the end parts of the stator yoke 2 and the rotor yoke 1 can be made into circular arc shapes, so as to reduce weight and reduce movement interference.

specific Embodiment approach 3

[0034] Specific embodiment three: a specific embodiment is given, the rotor radius of the locker is 0.10m (length from the rotor assembly hole 5 to the bottom end of the rotor yoke 1), the width of the side where the rotor yoke 1 coupling surface is located is 10mm, and the permanent magnet of the stator Steel 3 has a diameter of 10mm and an air gap of 1.5mm on one side. Finally, the peak locking torque of the locker is calculated to be 0.77Nm, the maximum locking angle is 7.5 degrees, and the critical locking angle is 3.4 degrees, which achieves the expected design effect.

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Abstract

The invention relates to a non-contact locker of single-sided permanent-magnet steel structure with a closed magnetic circuit, belonging to the field of aerospace and aiming to solve the claim problems that aerospace requirements for simplicity in operation and reliability in working cannot be met by a traditional locker. The non-contact locker comprises a stator and a rotor, wherein one of the stator and the rotor is assembled with a moving element of a device to be locked, the other one of the stator and the rotor is assembled with a static element of the device to be locked, the stator comprises a stator yoke and two blocks of permanent-magnet steel, the stator yoke is a U-shaped groove structure, a block of permanent-magnet steel with a round axial cross section is arranged on each of opposite positions on the inner surface of a U-shaped groove, a rotor yoke of the rotor is a rectangular revolution body, and the width of a coupling surface at the lower end of the rotor is equal to the width of the permanent-magnet steel; when locking operation is needed, the moving element moves to a locking region by means of an external force so that the rotor yoke does revolution motion in a reciprocating way in a through direction of the U-shaped groove; and when the coupling surface of the rotor yoke is right aligned with the two blocks of permanent-magnet steel, the moving element and the static element of the device to be locked are locked together.

Description

technical field [0001] The invention belongs to the field of aerospace. Background technique [0002] There will be many aerospace equipment on a space installation, and the working life of these equipment is not the same. When some equipment reaches the end of its life cycle, it is often necessary to have some specific function lockers to lock the moving parts of these equipment to avoid interference with other normal working equipment due to its free movement. The basic requirements for this type of lock are simple operation and reliable operation. In the past, on ground equipment, people often used energized coils or energized electromagnets to realize this function, but on aerospace equipment, long-term power-on will have a negative impact on the life of the power supply battery, which is not the best choice. [0003] Therefore, with regard to present technology and existing product, still do not have a kind of simple and reliable locker that can satisfy aerospace requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/17H02K1/18H02K1/27H02K1/28
CPCH02K1/17H02K1/18H02K1/27H02K1/28
Inventor 李勇王骞李勇飞赵猛赵博徐永向邹继斌胡建辉江善林刘承军
Owner HARBIN INST OF TECH