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Test mechanism for thrust adapter

An adapter and thrust technology, applied in the aerospace field, to achieve the effect of increasing the contact surface, increasing the adjustable space, and ensuring stability

Pending Publication Date: 2021-05-25
泸州卓远液压有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a test mechanism for a thrust adapter, which solves the existing demand for a test device carrying a thrust adapter when testing the thrust adapter

Method used

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  • Test mechanism for thrust adapter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The invention is a test mechanism for a thrust adapter, comprising a bearing frame with a thrust adapter installation cavity inside, an oil cylinder bearing assembly fixed on the bottom of the bearing frame and opposite to the installation cavity, and an oil cylinder bearing assembly installed on the bearing assembly with the axis perpendicular to the horizontal plane The radial oil cylinder 23 of the oil cylinder 23, the end of the piston rod 3 of the oil cylinder 23 faces the installation cavity, and the end of the piston rod 3 is installed with a U-shaped push seat 24 through a connecting assembly, which includes a plug 7, a main bolt 22 and a washer 8 , the side of the plug 7 close to the end of the piston rod 3 protrudes outward to form a first spherical surface 37, and the plug 7 is provided with a second-level stepped through hole 25 penetrating through the first spherical surface 37, and the small diameter hole of the through hole 25 is connected to the first sphe...

Embodiment 2

[0060] This embodiment is a further description of the push seat 24 in the first embodiment.

[0061] Such as Figure 6 As shown, the push seat 24 is installed on the side of the plug 7 away from the piston rod through a mounting structure. The ear plate 29 is provided with a through hole on the ear plate 28, and the rod end of the bolt 30 passes through the through hole and is threadedly connected with the threaded hole 28, and the head of the bolt 30 is in contact with the ear plate 29.

[0062] Further, the groove bottom 32 of the U-shaped groove 31 of the push seat 24 is a cylindrical arc surface, and the axis where the center of the circle is located is perpendicular to the axis of the oil cylinder 23 .

[0063] During use, the radius of the groove bottom 32 is consistent with the outer circle of the floating thrust plate and the first test piece. When the floating thrust plate and the outer circle of the first test piece are inserted into the U-shaped groove, the outer ...

Embodiment 3

[0069] The detection of the overhanging length of the piston rod of the radial oil cylinder adopts a displacement sensor, which is specifically implemented as follows: the end of the piston rod 3 located in the cylinder barrel of the oil cylinder 23 is provided with a collection hole whose axis is parallel to the axis of the piston rod 3 35. A built-in displacement sensor 36 for collecting the moving stroke of the piston rod 3 is installed on the cylinder bottom of the oil cylinder 23. The collection end of the displacement sensor penetrates the bottom of the cylinder and is inserted into the collection hole 35, and the collection end of the sensor passes through the sealing ring and Bottom seal fit.

[0070] The displacement sensor preferably adopts a displacement sensor whose model is XST-A 4210-G50M1.

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Abstract

The invention discloses a test mechanism for a thrust adapter, which comprises a bearing frame internally provided with a mounting cavity, an oil cylinder bearing assembly fixed at the bottom of the bearing frame and a radial oil cylinder mounted on the oil cylinder bearing assembly, and a U-shaped push seat is mounted at the tail end of a piston rod of the oil cylinder through a connecting assembly; the connecting assembly comprises an ejector head, a main bolt and a gasket, one side of the ejector head protrudes outwards to form a first spherical surface, a through hole is formed in the ejector head, the hole bottom of a large-diameter hole of the through hole is a second spherical surface, one side of the gasket is attached to the second spherical surface, and the tail end of the rod portion of the main bolt sequentially penetrates through an inner hole of the gasket and a small-diameter hole and then is in threaded connection with the piston rod, the push seat is mounted on one side of the ejector head away from the piston rod. According to the invention, not only is a structure meeting a thrust adapter test designed, but also the performance of flexible adjustment and convenient centering similar to ball pin connection can be achieved, and locking can be carried out through a main bolt, so that subsequent oil cylinder radial pushing operation can be smoothly carried out.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a test mechanism for a thrust adapter. Background technique [0002] The thrust adapter is a test device used for ground ignition tests of rocket engines. After the thrust adapter is designed and manufactured, its performance verification is required to ensure that its relevant parameters are in line with the follow-up rocket engine ground test. At present, the purpose of the thruster test mainly has the following three points: [0003] 1. Detect the friction coefficient of the oil film surface of the thrust adapter under the preset load; for example, when the load generated by the rocket engine is 1800t, in order to ensure that the performance of the thrust adapter meets the performance of the rocket engine, the design requirements of the thrust adapter are not low For a load of 1800t, according to the setting of the safety factor, the preset load of the thrust adapter equi...

Claims

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Application Information

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IPC IPC(8): G01M7/08G01M13/00G01N19/02
CPCG01M7/08G01M13/00G01N19/02
Inventor 罗学川范开春鲍永定刘洪张来柱
Owner 泸州卓远液压有限公司
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