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Sealing structure for asbestos packing of water pump bearing

A technology of asbestos packing and sealing structure, used in pumps, pump components, non-variable-capacity pumps, etc., can solve the problems of low manufacturing cost, high wear and friction power consumption, short service life, etc., and achieve convenient installation and save processing. effect of time

Inactive Publication Date: 2013-05-08
CHONGQING MING SHIELD ELECTROMAGNETIC VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The asbestos packing seal structure of the water pump bearing in the prior art is simple and the manufacturing cost is low. The commonly used fillers in the packing seal include graphite impregnated cotton fabric packing and graphite impregnated asbestos packing. The pump shaft is sealed tightly, so the wear and friction power consumption is large, the leakage is large, the service life is short, and the packing gland needs to be tightened frequently, and the packing needs to be replaced frequently. Every time the packing needs to be replaced, the gland and screw need to be reinstalled. , nuts, the operation is cumbersome; the operator needs to judge the wear of the packing according to the looseness of the bolts, and the timing of the replacement of the packing is uncertain. Once the gland is opened and the packing is found to be unnecessary, it will waste time and cause Affect the labor mood of the operating workers

Method used

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  • Sealing structure for asbestos packing of water pump bearing
  • Sealing structure for asbestos packing of water pump bearing

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Embodiment Construction

[0014] Such as figure 1 , figure 2 As shown, the water pump bearing asbestos packing sealing structure of the present invention includes a main shaft 1 and a stuffing box case 2. There is a shaft sleeve 3 on the main shaft, and a stuffing box case 2 is wrapped around the shaft sleeve 3. The stuffing box case 2 Between the shaft sleeve 3 and the inner bushing 4, asbestos filler 5, water seal ring 6, asbestos filler 5, and packing gland 8 are provided in turn from left to right, and the water seal ring 6 and the asbestos filler 5 are also provided with There is a graphite sealing ring 7, and the packing gland 8 is fixed on the stuffing box case 2 through the cooperation of the nut and the screw rod 9 on the fixed stuffing box case 2, and the said screw rod 9 has a scale 10.

[0015] In order to achieve the sealing effect, the bottom surface of the packing gland 8 is a striped rough surface, which can increase the fastening degree between the packing gland 8 and the shaft slee...

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Abstract

The invention discloses a sealing structure for asbestos packing of a water pump bearing. The sealing structure comprises a main shaft and an asbestos packing box, wherein the main shaft is provided with a shaft sleeve; and the asbestos packing box is positioned on the shaft sleeve. In the prior art, the packing material has a poor sealing effect, a packing pressing cover and the packing box are inconvenient to mount and dismount due to bolt connection, an operator judges reloading through the loosening degree of the bolts, and the labor intensity of the operator is increased. The invention solves the problems and provides an improved sealing structure for the asbestos packing of the water pump bearing; a threaded rod is welded on the packing box; the packing pressing cover is connected with the packing box only through nuts, and is convenient to mount and dismount; and the threaded rod is provided with a dividing rule, so that the operator can intuitively judge whether the packing needs to be reloaded or not, the packing reloading times are reduced, and the labor intensity is saved.

Description

technical field [0001] The invention belongs to a water pump bearing sealing structure, in particular to a water pump bearing asbestos packing sealing structure. Background technique [0002] The asbestos packing seal structure of the water pump bearing in the prior art is simple and the manufacturing cost is low. The commonly used fillers in the packing seal include graphite impregnated cotton fabric packing and graphite impregnated asbestos packing. The pump shaft is sealed tightly, so the wear and friction power consumption is large, the leakage is large, the service life is short, and the packing gland needs to be tightened frequently, and the packing needs to be replaced frequently. Every time the packing needs to be replaced, the gland and screw need to be reinstalled. , nuts, the operation is cumbersome; the operator needs to judge the wear of the packing according to the looseness of the bolts, and the timing of the replacement of the packing is uncertain. Once the g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/10
Inventor 姜静慧
Owner CHONGQING MING SHIELD ELECTROMAGNETIC VALVE
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