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Capsule assembly for spherical pressure accumulator of servo mechanism, molding die and molding method thereof

A technology of servo mechanism and molding method, which is applied in the direction of household appliances, household components, and other household appliances, and can solve the problems of unfavorable space launch and weapon system miniaturization and light weight design, large volume of piston accumulator, pressure holding pressure, etc. Low-level problems, to achieve the effect of prolonging the service life of dynamic flexion, light weight, and long holding time

Active Publication Date: 2020-09-18
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the pressure storage period of the servo mechanism of the aerospace vehicle and weapon system adopts the structural form of the piston accumulator. Due to the sealing ring structure, the piston accumulator has a short pressure holding time, a small discharge flow, and slow discharge, which requires continuous replenishment. In addition, the piston accumulator is bulky and heavy, which is not conducive to the miniaturization and lightweight design of the existing space delivery and weapon systems, and the holding pressure is low, which is easy to leak

Method used

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  • Capsule assembly for spherical pressure accumulator of servo mechanism, molding die and molding method thereof
  • Capsule assembly for spherical pressure accumulator of servo mechanism, molding die and molding method thereof
  • Capsule assembly for spherical pressure accumulator of servo mechanism, molding die and molding method thereof

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Experimental program
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Effect test

Embodiment 1

[0077] 100 parts of chlorohydrin raw rubber, 1.5 parts of stearic acid, 45 parts of carbon black N539, 3 parts of lead tetroxide, 2 parts of accelerator NA-22, 1.5 parts of antioxidant NBC, 3 parts of antioxidant 4010NA, uniform mixing After parking for 1-2 days, vulcanize and test.

[0078] Performance test results:

[0079] Shore A 78 hardness; tensile strength 17MPa; elongation at break 260%; permanent set at break 4.0%; permanent set at compression (100℃×48h, compression 30%) 7.6%.

Embodiment 2

[0081] 90 parts of chlorohydrin raw rubber, 10 parts of nitrile rubber, 1.5 parts of stearic acid, 45 parts of carbon black N539, 3 parts of lead tetroxide, 1.5 parts of accelerator NA-22, 1.5 parts of antioxidant NBC, and antioxidant 4010NA 3 parts, DCP 0.5 parts, anti-aging agent 4010NA 3 parts, after mixing evenly, park for 1 to 2 days, vulcanize and test.

[0082] Performance test results:

[0083] Hardness shore A 80; tensile strength 20MPa; elongation at break 256%; permanent deformation at break 2.0%.

[0084] Using the above two typical rubber materials and using the two specifications of the spherical capsule mold of the present invention, the size of the epichlorohydrin rubber spherical capsule (inner diameter size: Ф95mm, Ф120mm) is injected and molded at one time. The product quality meets the design of aerospace vehicles and missile weapons. Technical requirements and functional requirements. The spherical capsule test piece is first subjected to inflation (0.1MPa) pre...

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Abstract

The invention relates to a capsule assembly for a spherical accumulator of a servo mechanism, and a forming die and a forming method thereof, and belongs to the technical field of accumulators of servo mechanisms. According to the capsule assembly, a spherical capsule assembly with a special structure, a design structure of a spherical metal-rubber capsule assembly (a spherical capsule, a spring wound steel wire), is designed for the spherical accumulator of the servo mechanism. The spherical capsule assembly is composed of the spherical capsule, a metal framework, and the spring wound steel wire. The spherical capsule assembly is used for the spherical accumulator of the servo mechanism, and has the advantages of being large in leakage flow, rapid in starting, light in weight, high in reliability, long in holding time of one inflation, long in service life, and the like.

Description

Technical field [0001] The invention relates to a capsule assembly for a spherical pressure accumulator of a servo mechanism, a molding die and a molding method thereof, belonging to the technical field of servo mechanism pressure accumulators, and mainly used for a spherical pressure accumulator used in aerospace transportation and weapon servo mechanisms The structure design technology and processing molding technology of the spherical capsule combined mold; including the structure design technology of the spherical capsule molding mold for the servo mechanism spherical pressure accumulator, the product processing molding technology, the material selection, determination and processing technology of the mold. Background technique [0002] At present, the pressure accumulation period of the aerospace carrier and weapon system servo mechanism adopts the structure of piston accumulator. Because the piston accumulator adopts the sealing ring structure, the pressure holding time is s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/02B29C45/43B29C45/26B29L31/30
CPCB29C45/02B29C45/26B29C45/43B29L2031/3097
Inventor 高玉旭张继华赵云锋李润源
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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