Stuffing structure of split type stuffing box and stuffing replacing method

A stuffing box, split-type technology, applied in non-variable pumps, liquid fuel engines, components of pumping devices for elastic fluids, etc., can solve the problem that the quality of work cannot be guaranteed, and all packing cannot be taken out or installed Problems such as positioning and high labor intensity can be solved to achieve the effect of improving work efficiency and work quality

Inactive Publication Date: 2013-08-14
JIGANG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, due to the disadvantages of the design of the stuffing box of the existing centrifugal pump, the removal of the old packing and the installation of the new packing need to be operated one by one for each packing

Method used

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  • Stuffing structure of split type stuffing box and stuffing replacing method
  • Stuffing structure of split type stuffing box and stuffing replacing method

Examples

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Embodiment Construction

[0015] Combine below Figure 1 to Figure 2 detail

[0016] A split stuffing box stuffing structure and stuffing replacement method, which includes figure 2 The two semicircular sleeves on the left and right, the two semicircular sleeves 6 can be combined to form a cylindrical stuffing box. In addition, a fixed flange is provided on the outer end of the semicircular sleeve, and a flange hole is provided on the flange for connecting with the pump body. The inner end is provided with a shaft hole to allow the pump shaft to pass through.

[0017] After it is installed correctly, the attached figure 1 As shown, the semicircular sleeve 6 presses the O-ring 7 and positions it on the pump body 8 through ten hexagon socket bolts 5 to form a stuffing box, which is cup-shaped, so that the split stuffing box and the pump shaft 9 A circular space for accommodating the packing 4 is formed between them. Then put the packing 4 suitable for the specifications and sizes into the stuffing ...

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Abstract

A stuffing structure of a split type stuffing box comprises a tubular stuffing box which is composed of a left semicircular sleeve and a right semicircular sleeve, wherein the left semicircular sleeve and the right semicircular sleeve are totally the same. A cavity in the stuffing box is used for containing packing, fixed flanges are arranged at the external ends of the semicircular sleeves, and axial holes are arranged at the internal ends. A flange cover for pressing the packing is sleeved at the outer end of the stuffing box and connected with a pump body through a fastening bolt. A stuffing replacing method is further provided. By means of the stuffing structure, the shortcomings that traditional stuffing is directly installed between the pump body and a pump shaft can be overcome, simultaneously the stuffing box is designed into a left-right split type separable structure, so that the packing can be taken out and installed conveniently and fast, and working efficiency and working quality are greatly improved.

Description

technical field [0001] The invention relates to a sealing structure of a pump, in particular to a left and right split stuffing box structure. Background technique [0002] In the centrifugal pumps currently using packing, the stuffing box is made directly on the pump body, that is to say, the stuffing box is a structure on the pump body that cannot be separated. When the packing in the centrifugal pump stuffing box is aging and all the packing needs to be replaced, all the packing to be replaced must be hooked out one by one with a special tool. Since the aging packing is extremely tightly combined with the pump shaft, it is difficult to remove the entire packing completely. When replacing the new packing, it is also necessary to press the packing one by one into the stuffing box one by one. After repeated operations, it is inevitable that the new packing will be partially damaged before it is used. In short, due to the disadvantages of the design of the stuffing box of t...

Claims

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Application Information

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IPC IPC(8): F04D29/10
Inventor 韩福建玄冠红魏化强梁荣华张敏
Owner JIGANG GRP
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