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Manufacturing method of flexible ring of rolling electric rotary transmission device

A technology of transmission device and flexible ring, which is applied to circuits, electrical components, circuit/collector parts, etc., can solve the problems such as the large gap in the machining accuracy of anti-fatigue flexible rings and the immaturity of flexible thin-walled rings.

Inactive Publication Date: 2018-05-11
JIUJIANG JINGDA MEASUREMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the research and development technology of rolling and rotating electrical transmission devices in China has developed rapidly, and some progress has been made in the precision machining of its flexible thin-walled devices, which has improved the electrical transmission performance, efficiency and power of rolling and rotating electrical transmission devices, but for flexible thin-walled circular The preparation technology of the ring has not yet formed a mature preparation process method. The processing accuracy of the anti-fatigue flexible ring is still far from the goal of 1,000,000 elastic fatigues and a roundness of 0.03. However, foreign countries have imposed a technical blockade on this technology in my country.

Method used

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  • Manufacturing method of flexible ring of rolling electric rotary transmission device

Examples

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Effect test

Embodiment 1

[0027] A method for preparing a flexible ring of a rolling electrorotation transmission device, the specific steps are as follows:

[0028] A. Material selection: use beryllium bronze bar with strong fatigue characteristics and QBe17200 imported from the United States;

[0029] B. Rough turning: During the rough turning process, the beryllium bronze rod is processed into a beryllium bronze tube material with an outer circle and inner hole, and a machining allowance of 2mm is left for the inner hole and outer circle of the beryllium bronze tube material;

[0030] C. Solution treatment: solid solution treatment is carried out on the rough-carved beryllium bronze pipe material, so that the beryllium-rich phase in the beryllium bronze pipe material is solid-dissolved in the beryllium bronze matrix. The heating temperature is 750 ° C, and the constant temperature is maintained for 1 hour. Cool at a speed of ℃ / min. After the solution treatment is completed, the metallographic struct...

Embodiment 2

[0036] A method for preparing a flexible ring of a rolling electrorotation transmission device, the specific steps are as follows:

[0037] A. Material selection: use beryllium bronze bar with strong fatigue characteristics and QBe17200 imported from the United States;

[0038] B. Rough turning: During the rough turning process, the beryllium bronze rod is processed into a beryllium bronze tube material with an outer circle and inner hole, and a machining allowance of 2mm is left for the inner hole and outer circle of the beryllium bronze tube material;

[0039] C. Solution treatment: The beryllium bronze pipe material that has been roughed is subjected to solution treatment, so that the beryllium-rich phase in the beryllium bronze pipe material is solid-dissolved in the beryllium bronze matrix, the heating temperature is 770 ° C, and the constant temperature is kept for 1.5 hours. Rapid cooling at a rate of 20°C / min. After the solution treatment is completed, the metallograph...

Embodiment 3

[0045] A method for preparing a flexible ring of a rolling electrorotation transmission device, the specific steps are as follows:

[0046] A. Material selection: use beryllium bronze bar with strong fatigue characteristics and QBe17200 imported from the United States;

[0047] B. Rough turning: During the rough turning process, the beryllium bronze rod is processed into a beryllium bronze tube material with an outer circle and inner hole, and a machining allowance of 2mm is left for the inner hole and outer circle of the beryllium bronze tube material;

[0048] C. Solution treatment: The beryllium bronze pipe material that has been roughed is subjected to solution treatment, so that the beryllium-rich phase in the beryllium bronze pipe material is solid-dissolved in the beryllium bronze matrix. The heating temperature is 780 ° C, and the constant temperature is kept for 2 hours. Cool at a speed of ℃ / min. After the solution treatment is completed, the metallographic structure ...

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Abstract

The invention discloses a manufacturing method of a flexible ring of a rolling electric rotary transmission device. The manufacturing method of the flexible ring of the rolling electric rotary transmission device comprises the steps of selection of a flexible ring material, rough turning, solution treatment, half aging, finish turning, full aging and electroplating. The flexible ring material is aberyllium bronze bar with a high fatigue property. In the rough turning process, the beryllium bronze bar is machined into a tube which is externally cylindrical and is provided with an internal hole, and then solution treatment is conducted; after solution treatment, the metallographic structure subjected to solution treatment is observed; both half aging and full aging are conducted in an air furnace provided with a forced air circulation device, and the hardness is measured in the two aging processes through a Rockwell hardness tester and a Vickers hardness tester correspondingly; and finally, in the electroplating process, the surface of the flexible ring is plated with copper, nickel aminosulfonate and pure gold in sequence. The flexible ring manufactured through the method has the advantages of good elasticity, long fatigue life and good electric contact performance and can meet the requirement for long-time work of the rolling electric rotary transmission device.

Description

technical field [0001] The invention relates to a rolling electrorotation transmission device, in particular to a method for preparing a flexible ring of a rolling electrorotation transmission device. Background technique [0002] The rolling electric rotary transmission device is a precision power transmission device formed by axially superimposing a multi-loop rolling friction pair structure composed of nested inner conductive rings, outer conductive rings, flexible rings, idlers, guide rails, etc., which can realize two Relative to 360° unlimited free rotation of power and signal transmission between devices, it is mainly used in systems that require signal rotation and electrical transmission in the fields of aviation, aerospace, navigation, weapons, and wind power. Compared with the traditional conductive slip ring, which relies on the contact and sliding friction between the ring body and the brush wire structure to realize the rotation transmission function, the outst...

Claims

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Application Information

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IPC IPC(8): C22F1/02C22F1/08C25D5/12H01R43/00
CPCC22F1/08C22F1/02C25D5/12H01R43/00
Inventor 吴海红周萍张林薄夫森李道权王斌娄敏
Owner JIUJIANG JINGDA MEASUREMENT TECH
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