Valve plate assembly tool for rubber lined butterfly valve

Abstract

The invention discloses a valve plate assembling tool for a rubber-lining butterfly valve. The valve plate assembling tool comprises a valve body fixing mechanism and a traction device. The valve body fixing mechanism is used for vertically fixing a valve body. The traction device comprises a base plate, a driving shaft, a driving mechanism and a controller. A tool rack is mounted on the base plate. The driving shaft is mounted on the tool rack in a rotary manner. A driving wheel is arranged on the driving shaft. A steel wire rope is wound on the driving wheel. One end of the steel wire rope is connected with the driving wheel, and the other end of the steel wire rope is used for being connected with a first end of a traction belt. A second end of the traction belt is used for being connected with a valve plate. The valve plate is pulled into the valve body through pulling of the steel wire rope. The driving mechanism drives the driving shaft to rotate. The controller controls the driving mechanism to work. The valve plate assembling tool for the rubber-lining butterfly valve is compact in structure and easy to mount and move; assembling efficiency of the large-diameter rubber-lining butterfly valve is greatly improved; labor intensity is lowered; and the operation process is safe and stable.

Description

technical field [0001] The invention relates to the field of valve assembly, in particular to a valve plate assembly tool for a rubber-lined butterfly valve. Background technique [0002] As a component used to realize on-off and flow control of pipeline systems, rubber-lined butterfly valves have been widely used in many fields such as petroleum, chemical industry, metallurgy, and hydropower. In the butterfly valve technology, its sealing form mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. [0003] The rubber-lined butterfly valve realizes the cutting and flow control of the medium in the pipeline system through the interference extrusion of the valve plate to the valve seat. As the caliber and nominal pressure of the valve increase, the interference required for sealing and extrusion also increases, and the technical difficulty and unsafety factor of the assembly of the large-diameter valve plate and valve seat also in...

AI Technical Summary

Problems solved by technology

[0005] (1) Manual assembly of the valve plate and valve body is used to generate the pulling force required for assembly, requiring multiple workers to work at the same time, requiring many personnel, high labor intensity, and certain potential safety hazards;

[0006] (2) A crane is used to assemble the valve plate and the valve body. The angle of the crane pulling in the valve plate is not easy to control, and there are certain problems of cable pulling and hanging. Moreover, the crane operates at a fast speed and has a certain impact, and the positioning position is difficult to control. , low assembly efficiency

[0007] The assembly efficiency of these two assembly methods is low, and there are potential safety hazards, which have a negative impact on the batch and modern production of large-diameter rubber-lined butterfly valves.

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