Sealing device capable of automatically compensating abrasion loss

Abstract

The invention relates to a sealing device, in particular to a sealing device capable of automatically compensating the abrasion loss. According to the sealing device capable of automatically compensating the abrasion loss, an adjusting screw rod and a sealing box of the sealing device are in screw-thread fit connection, the lower end of the adjusting screw rod abuts against the upper surface of a gasket, the lower surface of the gasket compresses an elastic medium, the lower end of an indicator rod and the upper surface of a pressing plate are fixedly connected, meanwhile, the indicator rod sequentially penetrates the elastic medium, the gasket and a through hole in the middle of the adjusting screw rod, the upper end of the indicator rod is arranged outside the upper end of the adjusting screw rod in a protruding manner, the lower end of the elastic medium compresses the upper surface of the pressing plate, the lower surface of the pressing plate compresses sealing stuffing, and the sealing stuffing and the equipment surface are in close fit connection. According to the technical scheme, the self-locking screw rod and a creative structure with the indicator rod and a spring matched are adopted, and the sealing device is a novel sealing device which is simple in structure, reliable to use, low in machining cost, small in maintenance workload, long in sealing stuffing replacement period and high in utilization rate.

Description

technical field [0001] The invention relates to a sealing device, in particular to a sealing device which automatically compensates for wear. Background technique [0002] The traditional sealing device does not have the function of automatic compensation of the wear amount of the sealing medium. Even though some sealing devices with wear amount compensation are newly designed later, they basically adopt the spring compression method, and the actual use effect is not ideal; The working principle of the tight sealing device is to use the spring force to make the sealing packing tightly fit on the surface of the equipment to form a seal, and at the same time compensate the wear of the sealing packing within the design stroke range of the spring. The spring force and stroke affect the sealing effect of the sealing device and The key factor of the replacement cycle of the sealing packing is that the reasonable range of elastic force provided by the spring is fixed. If the elasti...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a sealing device that overcomes the problems of unstable sealing effect of traditional sealing devices, low utilization rate of sealing packing, frequent replacement, and heavy maintenance workload, which can automatically compensate for wear

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