Reading head of ring type spatial array torque sensor

A technology of torque sensor and reading head, which is applied in the field of reading head

Inactive Publication Date: 2010-10-27
CHONGQING UNIV
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  • Claims
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Problems solved by technology

[0004] Aiming at the present situation that there is still no effective detection method for the measurement of the dynamic torque of the mechanical shaft under extreme environments such as strong impact, high temperature, corrosion, and large vibration, the present invention proposes a reading head of an annular space array torque sensor, which utilizes spherical symmetry characteristics and The principle of AC electromagnetic induction realizes the online dynamic measurement of the torque of the mechanical shaft through the relative displacement along the entire circumference of the mechanical shaft

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  • Reading head of ring type spatial array torque sensor
  • Reading head of ring type spatial array torque sensor
  • Reading head of ring type spatial array torque sensor

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specific Embodiment approach

[0015] The present invention includes a reading head housing 1 and a horseshoe-shaped armature core 10 . Such as Figure 1-Figure 3 As shown, the reading head housing 1 is composed of two symmetrical parts connected by screws at the pin hole 7; each symmetrical part can be divided into an outer shell 3 and a concave inner shell 4, and there is a trapezoidal chute on the side wall of the inner shell 4 9. The inner and outer shells are formed by one-time integral processing of hard aluminum alloy. The inner shell 4 of the two symmetrical parts forms an arc channel 6, which is used to nest outside the annular space array, so that the reading head housing can make a complete circular motion along the annular space array; the two symmetrical parts of the outer shell 3 forms cavity 5.

[0016] A horseshoe-shaped armature core 10 is placed in the cavity 5, and the end 12 of the armature core is relatively thin, with a thickness of 1mm, mainly for scanning the magnetic steel ball wh...

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Abstract

The invention relates to a reading head of a ring type spatial array torque sensor, which comprises a reading head shell and a U-shaped armature core. The reading head shell is formed by connecting two completely symmetric parts, and is provided with a chamber used for accommodating the U-shaped armature core and a channel for a ring type spatial array steel pipe to penetrate through, two coils are wound on the U-shaped armature core, one coil is an excitation coil inputting excitation current, and the other coil is an induction coil outputting induced voltage signals. The invention realizes the conversion of torque information into electric signals according to the principle of AC electromagnetic induction. The reading head has complete cycles of relative displacement along the mechanical rotating shaft, thereby realizing online dynamic measurement of torque information on the mechanical rotating shaft. Since the reading head is sealed, test conditions are not subject to constraints of the external environment. Therefore, the invention is applicable to torque tests for the mechanical rotating shaft of the hydraulic turbine, in the geological exploration and under other extreme conditions.

Description

technical field [0001] The invention belongs to the field of sensing and measurement control, in particular to a reading head of an annular space array non-contact torque sensor. Background technique [0002] An annular space array torque sensor (ZL200810069912.9) designed by Chongqing University is composed of an annular space array and a magnetoelectric detector. The annular space array is composed of a ring-shaped non-magnetic stainless steel tube and a certain number of magnetic steel balls. The magnetic steel balls are closely arranged in a single row in the tube to form an annular space array; the magnetoelectric detector consists of an aluminum casing It is packaged, and there are: coil group, plastic skeleton and signal processing circuit inside. Among them, the plastic skeleton is installed on the inner wall of the aluminum shell, and the coil group is composed of a main coil and four secondary coils, and the main coil and four secondary coils are wound on the plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/10
Inventor 喻洪麟何安国吴永烽康治平
Owner CHONGQING UNIV
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