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a closing device

A closing device and installation groove technology, which is applied in the field of closing equipment, can solve the problems of asymmetric rolling of two rollers, easy vibration, flanging, etc., and achieve the effects of easy maintenance, guaranteed machining accuracy, and simple manufacturing process

Active Publication Date: 2020-08-28
XIAN SPACE ENGINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a closing device, which overcomes the problem of asymmetrical rolling of the two rollers caused by the original closing device, thereby avoiding vibrations, flanging, burrs, etc. of the closed parts question

Method used

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specific Embodiment

[0039] Such as figure 1 and figure 2 As shown, the closing device for a nozzle provided in this embodiment includes a knob 1, a baffle plate 2, a slider 3, a set piece (set screw) 4, a roller 5, a rotating rod (stud) 6, a base 7 and The handle structure 9 is used to connect with the machine tool and transmit power. Knobs, studs, sliders and set screws are used to control the distance between the roller and the nozzle, such as image 3 and Figure 4 shown.

[0040] Such as Figure 5 As shown, the material of the closed nozzle is stainless steel 1Cr18Ni9Ti, and the diameter of the outer circle of the closed part is Φ Unilateral wall thickness 0.5 ~ 0.6mm. Closing requirements: There should be no gnawing on the edge of the closing, and the closing edge is close to the end surface of the nozzle cover, and the nozzle cover is not allowed to move.

[0041] (1) The shank structure 9 adopts 3# Morse taper, and the shank structure 9 is clamped by the chuck of the machine tool, s...

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Abstract

The invention provides a mouth closing device, which belongs to the technical field of mouth closing equipment. The device includes a base, two sets of sliding assemblies and two rollers, the two sets of sliding assemblies are arranged side by side on the base, the two rollers are each arranged on one of the sliding assemblies, and each rotates along a rotating shaft, The relative position of the rollers in the horizontal direction is adjusted through the corresponding sliding assembly. The closing device provided by the embodiment of the present invention adjusts the relative position of the two rollers in the horizontal direction through two sets of different sliding components respectively, and can freely adjust the gap between the rollers and the product according to the closing diameter of the part to be closed, avoiding a single screw. The column simultaneously controls the problem that the rollers of the two rollers are not in the same axis, thus avoiding the vibration of the part to be closed, and the quality problems of the closure such as flanging and burrs.

Description

technical field [0001] The invention relates to a mouth closing device, which belongs to the technical field of mouth closing equipment. Background technique [0002] When the liquid rocket engine is working, the nozzle fully atomizes and mixes the fuel and oxidant to produce efficient and stable combustion. The production and processing quality of the nozzle directly affects the atomization combustion characteristics of the nozzle, and even affects the thrust change and overall stability of the engine. , plays a vital role in the engine dynamic system. Oxidant / fuel nozzle closing is an important process in the nozzle production process, used for end face sealing. [0003] For a long time, the closing process adopts a closing device on the twist drilling machine for closing, and the closing device controls two rollers simultaneously by a single stud. [0004] The above-mentioned stud has two sections of thread, one section is right-handed thread and the other section is le...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D41/04
CPCB21D41/04
Inventor 艾昌辉周琴刘广续轩红
Owner XIAN SPACE ENGINE CO LTD