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A drilling device for steam turbine shroud

A steam turbine shroud and drilling device technology, which is applied in positioning devices, boring/drilling, drilling/drilling equipment, etc., can solve the problems of small processing volume, large production investment, and affecting the economic benefits of enterprises , to achieve the effect of ensuring accuracy, improving economic benefits of the enterprise, and reducing production costs

Active Publication Date: 2021-04-06
杭州新宇机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the existing drilling work directly uses the wire cutting device to directly drill the shroud. For some small processing enterprises, the amount of processing required is not large. It is a large production input that affects the economic benefits of the enterprise

Method used

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  • A drilling device for steam turbine shroud
  • A drilling device for steam turbine shroud
  • A drilling device for steam turbine shroud

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0037] Embodiment 2: refer to figure 2 and 3 , the difference from Embodiment 1 is that the above-mentioned positioning holes 71 are arranged in two groups along the radial direction of the positioning plate 3, and the spacing between the adjacent positioning holes 71 of the same group is different; the above-mentioned frame 1 is provided with a mounting seat 73 drive slots 76 that move up and down, frame 1 is threadedly connected with two positioning bolts 77 identical with drive slots 76 along its height direction; One side of mounting seat 73 offers the installation hole that is equal to the diameter of positioning bolts 77; When the seat 73 slides along the drive groove 76, the positioning holes 71 communicate with the two positioning bolts 77 respectively, and the positioning bolts 77 are inserted into the mounting holes to limit the position of the mounting seat 73, and when the positioning bolts 77 are inserted into the mounting holes , the inserting rod 72 is fitted ...

Embodiment 3

[0039] Embodiment 3: refer to figure 2 and 4 , and the difference from Embodiment 2 is that the above-mentioned positioning holes 71 are arranged in two groups along the radial direction of the positioning disk 3 , and the distances between adjacent positioning holes 71 of the same group are different. The above-mentioned insertion rod 72 and the mounting seat 73 are provided with two sets corresponding to two sets of positioning holes 71 and arranged along the height direction of the frame 1, and the mounting seat 73 is fixed on the frame 1; wherein, the handle 74 passes through a bearing (not shown in the figure) Rotately connected with the insertion rod 72, the two ends of the tension spring 75 are respectively fixed with the mounting seat 73 and the bearing; the side of the frame 1 relative to the positioning plate 3 is fixed with a positioning rod 78, and the positioning rod 78 is between the two insertion rods 72; When the handle 74 is overturned, the handle 74 abuts a...

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Abstract

The invention relates to a drilling device for the shroud of a steam turbine, which includes a frame, a positioning plate rotatably connected to the frame, and a bench drill. The positioning plate is coaxially provided with a circular groove, and one end of the positioning plate is coaxially opened There are several sets of slots for the shrouds to be plugged in. The positioning plate is also provided with clamping parts that limit the displacement of the shroud; the outer side of the positioning plate is evenly opened with a number of positioning holes along its circumference. The frame Positioning pieces are respectively inserted into the positioning holes to limit the position of the positioning plate; one end of the drill bit of the bench drill passes through the circular groove and is located above the shroud. The invention has the effects of low input cost and high economic benefit of the enterprise.

Description

technical field [0001] The invention relates to the technical field of shroud processing equipment, in particular to a drilling device for a steam turbine shroud. Background technique [0002] At present, the shroud refers to a structure used in power station steam turbines, gas turbines, aeroengines and other rotating machinery blades to reduce the vibration response of the blades. The shroud structure uses the friction between adjacent blades to dissipate the vibration energy of the blades, so as to achieve the effect of vibration reduction. [0003] The existing shroud structure is generally composed of two sets of inner and outer shrouds and a number of guide vanes located between the two shrouds and evenly arranged along the circumference of the shrouds. When installing the guide vanes, it is generally necessary to drill holes on the side walls of the shrouds Work, so that the corresponding positioning holes are formed on the inner and outer two groups of shrouds, whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B41/02B23B47/00B23Q3/06
Inventor 王诚
Owner 杭州新宇机械制造有限公司
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