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A split packing gland

A packing gland, split-half technology, applied in the field of machinery, can solve the problems such as the inability of the split surfaces to fit closely, and the loose connection of the split and half bodies.

Active Publication Date: 2020-07-31
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a split-half packing gland, which solves the problem that the split surfaces cannot be tightly fitted and the split-half connection is loose in the prior art.

Method used

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  • A split packing gland
  • A split packing gland
  • A split packing gland

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as Figure 4 As shown, the split-half packing gland includes the upper half body 1 and the lower half body 2. The two half bodies have the same structure, and the two half bodies pass through the joint surface 3 of the flange plate perpendicular to the axis line. Combining with the intermediate pressure ring joint surface 4 passing through the axis line, there is a gap 5 on both sides of the intermediate pressure ring joint surface 4. Each of the two halves has two bolt holes, one bolt hole is provided with a shallow convex stop 6, and the size of the other bolt hole is set to the corresponding concave stop size 7.

[0015] When combined, the notch 5 of the two halves can make the two ends of the joint surface 4 of the middle pressure ring have no chamfer or rounding left during production, so that they can be completely tightly f...

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Abstract

The invention discloses a half split type packing gland. The half split type packing gland comprises an upper half split body and a lower half split body; the two half split bodies are the same in structure, the two half split bodies are each provided with two bolt holes, the two half split bodies are combined through a flange plate combination face perpendicular to the axis line and a middle pressing ring combination face passing through the axis line, the two sides of the middle pressing ring combination face are each provided with a gap, the two half split bodies are each provided with twobolt holes, one bolt hole is provided with a shallow convex stop opening, the size of the other bolt hole is arranged to the size of a corresponding concave stop opening. The middle subdivision facesof two half split bodies of a pump half split type packing gland of the patent ZL2010202612870 in the prior art are tightly attached, and the two half split bodies can be quite tightly connected together.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a packing gland, in particular to a packing gland that can be disassembled in half in the middle of a rotating shaft. Background technique [0002] The packing gland is an important part used for the axial sealing between the shaft of fluid machinery such as water pumps or valves and the housing, and its main function is to compress the packing. Chinese patent ZL2010202612870 "Split Packing Gland for Pumps" better solves the problem that the original integral gland cannot be disassembled from the middle of the main shaft, which causes the axial length to increase and the original half packing that is firmly bolted The installation and disassembly of the gland is troublesome, but in this patent, there must be rounding or chamfering at the right angles on both sides of the split surface in the middle of the two halves, so the two split surfaces cannot be tightly fitted during assemb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/16F16K41/02
CPCF16J15/16F16K41/02
Inventor 余学军
Owner JIANGSU UNIV