Series connection separable filling sealing device for pump

A packing sealing and separation technology, which is applied to the components of the pumping device for elastic fluid, the sealing of the engine, the pump, etc., can solve the problem of inconvenient replacement of packing, and achieve the effect of improving production efficiency and convenient use.

Inactive Publication Date: 2008-07-02
SHANGHAI EAST PUMP(GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a series separable packing seal device for pumps, the described series separable packing seal device for pumps should solve the packing replacement in the packing seal device in the prior art inconvenient technical issue

Method used

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  • Series connection separable filling sealing device for pump
  • Series connection separable filling sealing device for pump
  • Series connection separable filling sealing device for pump

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Embodiment Construction

[0014] Such as figure 1 , figure 2 and image 3 As shown, the tandem separable packing seal device for pumps of the present invention is composed of a pump cover 2, a shaft sleeve 3, a packing 4 and a packing gland 5. The pump cover 2 is provided with a shaft hole, and the pump cover 2 is provided with a shaft hole. One end of the shaft sleeve 3 is set in the shaft hole, and the inner surface of the pump cover 2 is connected with a cylindrical stuffing box 6, the stuffing box 6 is coaxial with the shaft sleeve 3, and the inner circumference of the stuffing box 6 is in line with the shaft A stuffing cavity is provided between the outer circumference of the sleeve 3, the stuffing gland 5 is sleeved on the shaft sleeve 3, the stuffing gland 5 is located at one end of the stuffing box 6, and the stuffing 4 is set in the stuffing cavity In, wherein, the stuffing box 6 is composed of a first cylindrical barrel 13 and a second cylindrical barrel 14, and the first cylindrical barre...

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PUM

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Abstract

The invention relates to a series-connected detachable stuffing sealing device for a pump, which is composed of a pump cover, a shaft housing, stuffing and a stuffing pressure cover. The inner side of the pump cover is connected with a cylindraceous stuffing box which is coaxial with the shaft housing; a stuffing cavity is arranged between the internal circumference of the stuffing box and the external circumference of the shaft housing; the stuffing pressure cover is sheathed with the shaft housing; the stuffing pressure cover is arranged at one end of the stuffing box; the stuffing is arranged in the stuffing cavity; the stuffing box is composed of a first cylinder and a second cylinder, the first cylinder and the second cylinder are both sheathed with the shaft housing, the first cylinder is fixed with the inner side of the pump cover, the second cylinder is fixed with the inner side face of the pump cover via a screw, and the stuffing pressure cover is fixed with the second cylinder via the screw. When replacing the stuffing, the first cylinder is separated from the second cylinder; thereby enough operating room is obtained. By utilizing the detachable stuffing box and a method of replacing stuffing step by step, the invention can solve the problem that the stuffing can not be replaced conveniently when the pump is at maintenance or repair.

Description

Technical field: [0001] The invention relates to the field of machinery, in particular to fluid conveying machinery, in particular to pumps, and in particular to a series separable packing sealing device for pumps. Background technique: [0002] Due to the unequal pressure between the liquid inside the pump and the air outside, the liquid will leak along the pump shaft. In the prior art, packing sealing devices are widely used as shaft seals. The packing seal device inserts soft packing into the stuffing box, uses the gland to press tightly, and relies on the cylindrical surface of the outer surface of the shaft or sleeve and the inner surface of the packing to achieve sealing. However, since the stuffing box has a certain length, during the maintenance and repair process of the pump, if the suspension or the pump casing is not disassembled, the stuffing is not easy to be replaced or cannot be completely replaced. At the same time, the stuffing close to the stuffing box cav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/10F16J15/16
Inventor 吴永旭魏著谱
Owner SHANGHAI EAST PUMP(GRP) CO LTD
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