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A mechanical clamping pliers for friction deceleration and positioning

A technology of positioning pliers and mechanical clamps, applied in the field of hypersonic wind tunnel tests, can solve the problems of consumption, poor repeatability, and low positioning accuracy, and achieve low cost, rapid deceleration and accurate positioning, and achieve rapid deceleration and accurate positioning. Effect

Active Publication Date: 2017-06-06
中国空气动力研究与发展中心超高速空气动力研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the energy-absorbing cushioning deceleration method of the cushion block has a fast deceleration speed, it needs to consume and replace the energy-absorbing cushion block, and the positioning accuracy is not high, and the repeatability is not good

Method used

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  • A mechanical clamping pliers for friction deceleration and positioning
  • A mechanical clamping pliers for friction deceleration and positioning
  • A mechanical clamping pliers for friction deceleration and positioning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] figure 1 It is a structural schematic diagram of the mechanical clamping pliers for friction deceleration positioning of the present invention, figure 2 for figure 1 bottom view of image 3 for figure 1 isometric view of . exist Figure 1~Figure 3 Among them, the mechanical clamping pliers for friction deceleration positioning of the present invention includes a friction deceleration positioning pliers main body 1, a friction deceleration positioning pliers baffle plate 2, fastening bolts a3, fastening bolts b6, and adjusting bolts 12; the friction deceleration positioning The main body 1 of the pliers and the baffle plate 2 of the friction deceleration positioning pliers are fastened and connected respectively through the fastening bolt a3 and the fastening bolt b6. The adjustment bolt 12 is installed on the main body 1 of the friction deceleration locating pliers. The locating tongs baffle plate 2 is in contact, and the friction deceleration locating tongs baffl...

Embodiment 2

[0025] The structure of this embodiment is the same as that of Embodiment 1, except that the friction pad is fixed on the bell mouth and the straight middle section of the jaws of the friction deceleration locating pliers by screws; the baffle plate 2 of the friction deceleration locating pliers The production material is carbon fiber.

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PUM

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Abstract

The invention provides a mechanical gripping clamp with frictional retarding and positioning functions. The mechanical gripping clamp comprises a frictional retarding positioning clamp main body, a frictional retarding positioning clamp baffle, a fastening bolt a, a fastening bolt b and an adjusting bolt; the frictional retarding positioning clamp main body and the frictional retarding positioning clamp baffle are firmly connected with each other through the two bolts so as to form a mechanical gripping positioning clamp jaw structure with a flared opening, a flat and straight middle segment and an arc-shaped rear segment; the adjusting bolt is installed on the frictional retarding positioning clamp main body; and the adjusting bolt can be rotated, so that the frictional retarding positioning clamp baffle can be jacked, and therefore, the mechanical gripping clamp can assist in realizing fine adjustment on the frictional resistance of a fed model supporting rod. When the model supporting rod is fed into the positioning clamp, guiding, frictional retarding and positioning are performed on the fed model supporting rod through the flared opening, the flat and straight middle segment and the arc-shaped rear segment of the frictional retarding positioning mechanical gripping clamp respectively. The mechanical gripping clamp of the invention has the advantages of simple structure and low cost. With the mechanical gripping clamp adopted, rapid retarding and accurate positioning of a pneumatic thermal test model can be realized.

Description

technical field [0001] The invention belongs to the field of hypersonic wind tunnel tests, and in particular relates to a mechanical clamping clamp for friction deceleration and positioning. Background technique [0002] Most hypersonic wind tunnels at home and abroad are equipped with fast model delivery systems for aerothermal test research. According to the specific delivery method of the aerothermal test model, the deceleration positioning method of the delivered model in the wind tunnel flow field is also different. It is generally divided into electric deceleration mode, hydraulic buffer deceleration mode, pad energy absorption buffer deceleration mode. The program control of the electric deceleration method is simple, but the deceleration speed is slow, the deceleration time is long, the load of the working motor is large, and the motor is prone to failure. The hydraulic buffer deceleration method generally achieves deceleration by controlling the flow rate of the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04
Inventor 李绪国李志辉杨彦广李明
Owner 中国空气动力研究与发展中心超高速空气动力研究所