Power-saving apparatus for hydraulic expanding large retaining-ring by using super high pressure system

A hydraulic bulging and ultra-high pressure technology, which is applied to forming tools, engine seals, engine components, etc., can solve the problems of ultra-high pressure superchargers, such as large space, complicated tooling, and no production, so as to reduce the pressure bearing area and reduce the Excellent forming force and economical effect

Inactive Publication Date: 2007-04-18
DEYANG WANXIN POWER STATION PROD DEV
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Because the ultra-high pressure supercharger of this device requires a large space inside the mold, the tooling is complicated and the investment is large, so it is not used in production

Method used

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  • Power-saving apparatus for hydraulic expanding large retaining-ring by using super high pressure system
  • Power-saving apparatus for hydraulic expanding large retaining-ring by using super high pressure system
  • Power-saving apparatus for hydraulic expanding large retaining-ring by using super high pressure system

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Embodiment Construction

[0014] As shown in Figures 1 and 2, a labor-saving device for hydraulic bulging of a large-scale retaining ring using an ultra-high pressure system is to place a conical hollow lower punch 2 and a conical hollow upper punch at the upper and lower relative positions of the retaining ring blank 1 3. The inner holes of the tapered lower punch and the tapered upper punch are slidably matched with the labor-saving guide post 4, and there is a seal 5. An annular cavity 6 is formed between the guide post and the ring blank, and the inside of the guide post is processed by a The liquid channel 7 communicates with the annular cavity 6 at one end, and connects with the high-pressure system 8 at the other end. The labor-saving device is placed between the working table of the ordinary press and the movable beam. In order to reduce the pressure-bearing area, the labor-saving device has at least Two sets, after the second set, a labor-saving guide sleeve 9 is added outside the labor-saving ...

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PUM

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Abstract

A labor-saving unit for manufacturing the large protecting ring by hydraulic expanding with ultrahigh-pressure system features that the upper and lower hollow conic punch heads, whose internal hole is matched with a labor-saving guide column in slide mode, are arranged at upper and lower positions relative to a protecting ring blank, at least two labor-saving units are arranged between the bench of ordinary press and movable transverse beam, the labor-saving guide sleeve whose inside and outside are communicated with the ultrahigh-pressure liquid channel is additionally used for said labor-saving guide column, and an ultrahigh-pressure system is used for boosting.

Description

technical field [0001] The invention relates to a bulging device for ring-shaped workpieces, in particular to a labor-saving device for hydraulic bulging strengthening of generator retaining rings. Background technique [0002] The retaining ring is a non-magnetic steel ring installed at both ends of the generator rotor, which is used to tighten the coil at the end. The force is complex, the working conditions are special, and the manufacturing is difficult. It is one of the key parts of the power generation equipment. In order to ensure the safe operation of the generator, it is required that the non-magnetic retaining ring should have sufficient strength, good toughness, and minimum residual stress, so the manufacturing technology is very demanding. Among them, performance enhancement is the key to production. In terms of performance enhancement, hydraulic bulging is the most ideal in the prior art. The methods of hydraulic bulging strengthening include total pressure me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D26/02B21D37/00F16J15/02
Inventor 刘建生何文武田继红张秀芝郭会光陈慧琴
Owner DEYANG WANXIN POWER STATION PROD DEV
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