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Discharge-free spherical end enclosure for casing pipe seat shell

A bushing seat, non-discharge technology, applied in electrical components, shafts, shafts and bearings, etc., can solve the problems of sharp corners and discharges in welding seams, and achieve the effect of avoiding welding stress and discharge phenomena

Inactive Publication Date: 2018-06-22
孙颖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main defect of the spherical head of the casing seat shell is that the support tube is welded and connected in the inner hole of the side wall of the spherical head. The second is that the welding seam at the joint of the support tube and the side wall of the spherical head may produce sharp corners, resulting in discharge phenomenon

Method used

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  • Discharge-free spherical end enclosure for casing pipe seat shell

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Embodiment Construction

[0009] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0010] The spherical head of the non-discharge bushing seat shell shown in the accompanying drawings includes the spherical head 3; the side wall of the spherical head 3 has holes, and the opened opening extends outward to form a support tube 3.1. The arc at the intersection of the side wall of the head 3 and the support tube 3.1 is smoothly connected.

[0011] The arc fillet at the intersection of spherical head 3 and support tube 3.1 R≥1+1.5t (t is the wall thickness of spherical head 3), flange height H≤(D-t)(1-K) / 2+0.43 R+0.72t (D is the outer diameter of the spherical head 3, K is the flanging coefficient). In this embodiment, the wall thickness t of the cylinder body 2 is 8 mm, the outer diameter D of the spherical head 3 is 200 mm, the material is aluminum alloy, the flanging coefficient K is 0.7, and the intersection of the sph...

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Abstract

The invention discloses a discharge-free spherical end enclosure for a casing pipe seat shell. The discharge-free spherical end enclosure comprises a spherical end enclosure body. An opening is formedin the side wall of the spherical end enclosure body and extends outwards, so that a support barrel is formed. Arc smooth connection is achieved at an intersection position between the side wall of the spherical end enclosure body and the support barrel. The discharge-free spherical end enclosure is further improved in that the arc fillet R at the intersection position between the side wall of the spherical end enclosure body and the support barrel is greater than or equal to 1+1.5t, wherein t represents the thickness of the spherical end enclosure body; and the flanging height H is less thanor equal to (D-t) (1-K) / 2+0.43R+0.72t, wherein D represents the outer diameter of the spherical end enclosure body, and K represents the flanging coefficient. By means of the discharge-free sphericalend enclosure, the welding stress and discharge phenomena generated at the connection position between the support barrel and the side wall of the spherical end enclosure body can be avoided.

Description

technical field [0001] The invention relates to the field of high-voltage substations, in particular to a spherical head of a bushing seat shell. Background technique [0002] The casing of the existing casing base includes flange I, cylinder body, spherical head, support tube assembly, and air-filled hole flange; flange I and spherical head are respectively welded and fixedly connected to both ends of the main cylinder; the side of the spherical head The wall is welded and fixedly connected to the support tube, and the support tube assembly is welded and fixedly connected to the support tube on the side of the spherical head. The main defect of the spherical head of the casing seat shell is that the support tube is welded and connected in the inner hole of the side wall of the spherical head. The second is that the welding seam at the joint of the support tube and the side wall of the spherical head may produce sharp corners, resulting in discharge phenomenon. Contents o...

Claims

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Application Information

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IPC IPC(8): F16C11/06
CPCF16C11/0614F16C2380/00
Inventor 孙颖
Owner 孙颖