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Weighing mechanism used for seed crystal driving device

A technology of transmission device and weighing mechanism, applied in the direction of measuring device, weighing, special scale, etc., can solve the problems of cumbersome function realization method of weighing mechanism, and achieve the effect of simple structure, solving the limitation of selection, and reasonable parts and parts.

Active Publication Date: 2012-05-30
SHENYANG SCI INSTR RES CENT CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0002] At present, the function realization method of the weighing mechanism in the known single crystal furnace equipment is cumbersome. In the weighing mechanism, because the weighing sensor in the atmosphere needs to measure the weight of the sample in the vacuum, the method of measuring the whole mechanism is often used. , so that the selection of the load cell is much larger than the weight of the actual sample

Method used

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  • Weighing mechanism used for seed crystal driving device
  • Weighing mechanism used for seed crystal driving device

Examples

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Embodiment 1

[0013] Embodiment 1: as figure 1 As shown, the present invention includes an outer frame 1, a load cell 2, an adjustment support and an expansion joint assembly, and the outer frame 1 is fixed on the top flange of the seed crystal shaft 3, and at the lower end of the top flange of the seed crystal shaft 3 The expansion joint assembly is sealed and installed. The support 4 is installed on the lower flange 7 of the expansion joint assembly on the side of the seed shaft 3 through a plurality of adjustment screws 8. The load cell 2 is respectively fixed on the outer frame 1 and the support 4. When working , a sample 9 is connected to the other end of the seed axis 3 .

[0014] The expansion joint assembly described in this example includes an expansion joint 6 and upper and lower flanges 5 and 7 installed at both ends of the expansion joint 6 . The upper flange 5 is a structure with an annular groove on the peripheral surface, and the end surface connected with the seed crystal s...

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Abstract

The invention discloses a weighing mechanism used for a seed crystal driving device and belongs to the technical field of vacuum equipment. The weighing mechanism comprises an outer frame, a weighing sensor, an adjusting support and an expansion joint component. The outer frame is fixed on a top flange of a seed crystal shaft. The expansion joint component is hermetically arranged on the lower end surface of the top flange of the seed crystal shaft. The support is fixed on the lower flange of the expansion joint component and positioned on one side of the seed crystal shaft. Adjusting screws that are mounted on the lower flange of the expansion joint component are in contact with the support, and the weighing sensor is fixed on the outer frame and the support respectively. During operation, a sample is connected at the other end of the seed crystal shaft. By adopting the expansion joint seal structure, the measurement range of the weighing sensor is properly selected according to the actual sample and the measurement range of the weighing sensor is effectively reduced; and besides, the weighing sensor that works in the air can accurately measure the weight of the sample in vacuum.The invention solves the problems that the selectivity of the weighing sensor is limited and the mechanism is heavy. The weighing mechanism is advantageous in simple structure and reasonable overall layout.

Description

technical field [0001] The invention belongs to the technical field of vacuum equipment, in particular to a weighing mechanism for a seed crystal transmission device. technical background [0002] At present, the function realization method of the weighing mechanism in the known single crystal furnace equipment is cumbersome. In the weighing mechanism, because the weighing sensor in the atmosphere needs to measure the weight of the sample in the vacuum, the method of measuring the whole mechanism is often used , so that the load cell is much larger than the actual sample weight in the range selection. Contents of the invention [0003] In view of the above-mentioned technical problems, the present invention provides a weighing mechanism for a seed crystal transmission device. It adopts the expansion joint sealing structure, so that the load cell under the atmosphere can measure the weight of the sample in the vacuum. [0004] In order to achieve the above object, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/62
Inventor 王宏宇郭东民黄晓霞张国栋佟辉吕琪王尧
Owner SHENYANG SCI INSTR RES CENT CHINESE ACAD OF SCI
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