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Self-driven joint

A self-driven, joint technology, applied in the direction of electric components, synchronous motors with stationary armatures and rotating magnets, supporting machines, etc., can solve the problem of a large number of joints, and achieve simple joint structure, high structural strength, and driving efficiency high effect

Active Publication Date: 2013-09-25
伶机(上海)驱动技术中心(有限合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this type of joint is not suitable for manufacturing compact structures, a large number of joints, and applications that require active drive and sensor control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the intelligent self-driven joint of the present invention includes: a sleeve 1, a magnetic induction device composed of a structural permanent magnet 3 and a rotating output rod 4 fixedly connected thereto, and an electromagnetic coil 6, a fastener 7, a magnetostrictive material The body 8 is tightly pressed on the magnetic field generating device composed of the piezoelectric or compressive strain material connecting body 9, wherein: the magnetic induction device is installed inside the casing 1 while rotating along the axis of the casing 1, and the magnetic field generating device is fixedly arranged outside the casing 1. A pair of electromagnetic coils 6 with opposite polarities are relatively arranged on the outer wall of the sleeve 1, and the magnetostrictive piezoelectric transducer composed of a fastener 7 and a magnetostrictive material body 8 tightly pressed on a piezoelectric or compressively strained material body 9 The sensing dev...

Embodiment 2

[0040] In this embodiment, on the basis of Embodiment 1, a second pair of electromagnetic coils 11 and a second yoke 10 are added, wherein: the second pair of electromagnetic coils 11 with opposite polarities and the first pair of electromagnetic coils 6 with opposite polarities are arranged alternately The outer wall of casing 1.

[0041] Embodiment 2 works by at first counteracting the permanent magnetic attraction force of the initial structural permanent magnet 3 acting on the magnetic material body 2 in the casing 1 by first energizing the electromagnetic coil on the first yoke 5, and then by applying power to the second yoke 10 The electromagnetic coil 11 is supplied with a reverse current, and under the combined action of the electromagnetic repulsion force of the magnetic first yoke iron 5 and the electromagnetic attraction force of the second yoke iron 10, the structural permanent magnet 3 deflects corresponding to the placement angle of the second yoke iron 10, And d...

Embodiment 3

[0044] Such as Figure 6 As shown, the present embodiment adopts the first yoke 5 whose section is an L-shaped structure;

[0045] When this embodiment is working, all its constituent elements and driving action mode are the same as Embodiment 1, but for this working mode, the normal line of the two ends of the first yoke 5 is at an angle of 90 degrees; in the initial position, the first yoke 5 One end surface normal of 5 is coincident ( / perpendicular) or vertical ( / coincident) with the axis of the structural permanent magnet 3 lengthwise direction, such as Figure 6 location shown. Combined with the driving process of working mode 1, in this working mode, the structural permanent magnet 3 can realize the reciprocating rotation driving action of 90 degrees of rotation.

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Abstract

Disclosed is a self-driven joint in the technical field of driving, sensing and control, comprising a casing tube (1), a structural permanent magnet (3) and a magnetic field generation device. The structural permanent magnet (3) is disposed inside the casing tube (1) being rotatable about the axis of the casing tube (1). The magnetic field generation device is fixedly disposed outside the casing tube (1). The magnetic field generation device comprises: a magnetostrictive piezoelectric sensing device and corresponding electromagnetic coils (6) thereof. Several pairs of the electromagnetic coils (6) of opposite polarity are disposed opposite on an outer wall of the casing tube (1). The magnetostrictive piezoelectric sensing device is fixedly disposed on a side wall of the casing tube (1). The self-driven joint has a compact structure and high structural strength, and can conveniently obtain a sensing electric signal without being driven by a power supply.

Description

technical field [0001] The present invention relates to a device in the technical field of drive sensing control, in particular to a self-driven joint based on the compound action of permanent magnet, magnetostrictive and piezoelectric materials or devices. Background technique [0002] Traditional joint mechanisms are all passively driven joint devices, and their functions are only for connection and transmission. The realization of the start-up process requires the action of an external motor. After searching the existing technology, it is found that Chinese Patent No. 20092025552.3 records a kind of "mechanical joint". Since this technology is only a simple mechanical mechanism, the structure is relatively complicated and there are many components. For similar joint devices, the action process needs to be used in conjunction with an external motor, and the degree or process of action can usually only be realized through an external sensing system. Therefore, this type o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16M11/00F16M11/06F16M11/18
CPCH02K21/12H02K11/0021F16C11/00H02K11/215
Inventor 杨斌堂孟光
Owner 伶机(上海)驱动技术中心(有限合伙)
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