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Conductive slip-ring dynamic contact resistance measuring tool

A technology of dynamic contact resistance and conductive slip ring, which is used in measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., which can solve the problems that the resistance measuring point is not static, and the change of loop resistance cannot be monitored.

Inactive Publication Date: 2014-06-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the slip ring cannot monitor the change of the ring resistance because the resistance measurement point is not static when the slip ring is working normally, a dynamic contact resistance measurement tool for the conductive slip ring is provided

Method used

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  • Conductive slip-ring dynamic contact resistance measuring tool
  • Conductive slip-ring dynamic contact resistance measuring tool
  • Conductive slip-ring dynamic contact resistance measuring tool

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0022] Specific implementation mode one: the following combination Figure 1 to Figure 3 Describe this embodiment, the conductive slip ring dynamic contact resistance measuring tool of this embodiment, it includes a rotating device, it also includes a static crimping device 2 and a rotary crimping device 3,

[0023] The static crimping device 2 is a first disc with a central through hole, a bottom surface of the static crimping device 2 is evenly distributed along the circumferential direction with a plurality of circular grooves, each circular groove is provided with a spring and a yellow Copper crimping block, the bottom surface of the circular groove is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to one end of the brass crimping block;

[0024] The rotary crimping device 3 is composed of a concentrically connected cylinder 3-1 and a second disc 3-2, and the center of the second disc 3-2 corresponding to the cylinder 3-1 h...

specific Embodiment approach 2

[0030] Embodiment 2: This embodiment is a further description of Embodiment 1. Both the static crimping device 2 and the rotary crimping device 3 in this embodiment are made of brass.

[0031] Brass is used to prepare the static crimping device 2 and the rotary crimping device 3, and since the brass is relatively soft, the tight connection of the entire tooling can be realized.

specific Embodiment approach 3

[0032] Embodiment 3: This embodiment is a further description of Embodiment 1 or 2. There are four circular grooves on a bottom surface of the static crimping device 2 .

[0033] Four circular grooves are used to embed the soft brass crimping block that provides friction and the spring that pushes the soft brass crimping block. After the wires, connect them together as a test point.

[0034] Through experiments, in the present invention, since the contact resistance produced by the crimping of the crimping device does not exceed 1 milliohm, the impact on the measurement results of the resistance is negligible, and the present invention cancels the slip ring through the friction of the crimping device The movement of the rotating end converts the rotating measuring point into a stationary measuring point. When the rotating device drives the slip ring to rotate, connect the test point with the milliohm meter to detect the resistance fluctuation of any ring.

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Abstract

A conductive slip-ring dynamic contact resistance measuring tool belongs to an electric-contact sliding connection technology field. When a slip ring works normally, a circuit resistance change situation can not be monitored because a resistance measurement point is not static. By using the tool of the invention, the above problem can be solved. The tool comprises: a rotation apparatus, a static crimping apparatus and a rotation crimping apparatus. According to the invention, through the two crimping apparatuses, concentric connection of a rotating shaft of the rotation apparatus and a conductive slip ring rotation end. The measurement point of the conductive slip ring rotation end is converted into the static measurement point through the idiostaic static crimping apparatus. Therefore, monitoring of fluctuations of the conductive slip-ring single circuit resistance can be realized through accessing a measuring instrument. The tool of the invention is suitable for the conductive slip-ring dynamic contact resistance measuring.

Description

technical field [0001] The invention relates to a tool for measuring dynamic contact resistance of a conductive slip ring, which belongs to the technical field of electric contact sliding connection. Background technique [0002] Slip rings are also called conductive slip rings, also known as collector rings, rotary joints, rotary electrical interfaces, slip rings, collector rings, return rings, coils, commutators or adapters, which are images of two relative rotating mechanisms , data signal and power transmission precision transmission device. It is especially suitable for applications where unlimited continuous rotation is required, and at the same time power or data needs to be transmitted from a fixed position to a rotating position. [0003] An important indicator of slip ring performance is the fluctuation value of the resistance of the ring under the condition of rotation. A loop of the slip ring is equivalent to a wire, but the connection with other components is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02
Inventor 关宇东黄博闻曹正洪提纯利韩媞陈家鑫张春静周葳藤艺丹徐迪
Owner HARBIN INST OF TECH
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