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Manual device for nuclear power

A manual and nuclear power technology, which is applied in the field of valve control devices, can solve the problems of high gear box requirements and failure to meet the requirements, and achieve the effects of large transmission ratio, strong air tightness and convenient operation

Inactive Publication Date: 2012-10-03
TIANJIN JINBO INSTR TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the GR50 gearbox manual devices on the market are all imported products with original packaging. There is no domestically produced device for nuclear power plants, because the gearboxes used in nuclear power plants have higher requirements, and generally do not meet the requirements.

Method used

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  • Manual device for nuclear power
  • Manual device for nuclear power
  • Manual device for nuclear power

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Experimental program
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Embodiment Construction

[0010] Such as figure 1 , 2 As shown in , 3, the manual device for nuclear power includes housing 1, gasket 2, bearing cap 3, O-ring 4, skeleton oil seal 5, worm 6, O-ring 7, retaining ring 8. Bearing 9, bearing 10, bearing cover 12, gasket 13, worm wheel 14, output shaft 15, O-ring 16, key 17, O-ring 18 、 Case cover 20.

[0011] 1. Install the worm gear assembly: put the O-ring 16 into the sealing groove on the output shaft 15, put the worm gear 14 into the output shaft 15 equipped with the key 17, and fasten it to the output shaft 15 with the top screw 21 superior;

[0012] 2. Assemble the worm gear assembly: put the O-ring 18 into Cover 20 Then put the worm gear assembly into the box body 1, the box cover 20 is buckled on the box body 1, positioned with two horizontally installed positioning columns 19, and then use eight screws to connect the box cover 20 with the box body 1 phase fixed;

[0013] 3. Install the worm assembly: put the O-ring 7 into the sealing groo...

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Abstract

The invention relates to a manual device for nuclear power, comprising a shell, a gasket, a bearing cover, four O-shaped sealing rings, a frame oil seal, a worm, a retainer ring, two bearings, a bearing cover, a gasket, a worm gear, an output shaft, a key and a box cover, wherein the O-shaped sealing rings and the key are respectively arranged on the output shaft, the output shaft fixed with the worm gear is placed in a box body; the box cover which is provided with the O-shaped sealing rings is fixed with the box body; the worm which is provided with the O-shaped sealing rings is placed intothe box body, the teeth of the worm are engaged with the worm gear teeth; the bearings are respectively placed at the two ends of the worm, the bearing is fixed with the box body and a screw; the bearing cover is fixed with one end of the box body by the gasket, and the bearing cover provided with the O-shaped sealing rings and the frame oil seal is fixed with the other end of the box body by thegasket. The invention has the characteristics of large transmission ratio, stable working, low noise, compact structure and capability of self-lock.

Description

technical field [0001] The invention relates to a valve control device, in particular to a nuclear power manual device used for manually lifting heavy objects in a nuclear island of a nuclear power plant. Background technique [0002] At present, the GR50 gearbox manual devices on the market are all imported products with original packaging. There is no domestically produced device for nuclear power plants, because the gearboxes used in nuclear power plants have higher requirements, and generally cannot meet the requirements. The manual devices involved in nuclear power plants are manual worm gears and worm reduction devices, which have high technical requirements, long service life (40 years), and can be operated several times a month; the overall volume is small, and they can withstand large impact loads; the protection level is IP67, and the airtightness is strong. At this stage, the products used in our country are all produced abroad. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C19/00
CPCY02E30/30
Inventor 艾云江索维季锋陈俊屠秋鹏陈海奇
Owner TIANJIN JINBO INSTR TECHN
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