Gland segment grooving device

Abstract

The invention provides a gland segment grooving device. An existing milling and drilling machine is taken as the basis, and a fan-shaped plate is arranged on a working table; the circle center position at the head part of the fan-shaped plate is provided with a circle center hole, and a fixed bearing is embedded in the hole; the fixed bearing takes the bearing hole in the inner side as the circlecenter, and concentric circle arc lines which are densely arranged every 1-2mm on the fan-shaped plate; dovetail-shaped pressing plate grooves are symmetrically and vertically arranged on the left andright of the fan face of the fan-shaped plate; the pressing plate grooves extend to the tail part of the fan-shaped plate, and gland sealing pressing plates capable of moving along the groove channels are arranged in the grooves; and teeth are designed at the arc-shaped outer edge of the fan-shaped plate, and the teeth are identical with a driving gear. The gland segment grooving device is simplein structure, small and exquisite in size, easy and convenient to operate, large-scale vertical lathe equipment can be replaced, the problems that both time and labor are consumed and the difficultyis large in the processing process of a steam seal ring can be effectively solved, the working efficiency can be remarkably improved, the machining precision problem can be solved, and the machining error is controlled within 0.02mm.

Description

technical field [0001] The invention relates to a novel mechanical processing device, in particular to a slotting device for an arc section of a steam seal. Background technique [0002] At present, high-speed rotating equipment such as steam turbines will use a kind of steam seal ring. There are multiple sealing teeth on the steam seal ring. It is often necessary to repair or modify the seal teeth on the divided seal arc section. At this time, it is necessary to open a suitable groove on the seal arc section, and then install new seal teeth. In the traditional method of construction, it is necessary to assemble each arc segment into a very standard full circle on the prepared tooling, and then take it to the lathe for processing. In particular, the diameter of the larger steam seal ring is about 3 meters, which requires a huge vertical lathe to complete. This process requires repeated adjustment of each arc section on the tooling until a standard circle is formed. This pro...

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Problems solved by technology

[0003] In order to solve the problems of long processing time and difficult processing of the seal ring in the prior art, the invention provides a slotting device for the arc section of the seal ring. The device is simple in structure, small in size and easy to operate, and can replace large Car equipment can effectively solve the problem of time-consuming, laborious and difficult processing of steam seal rings. It can not only greatly improve work efficiency, but also solve the problem of processing accuracy, so that the processing error can be controlled within 0.02mm

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