Lineation positioning device and lineation method for throat width detection

A technology of positioning device and positioning piece, applied in the field of scribing positioning device and throat width detection, can solve the problem that the actual throat width cannot be obtained, the influence of the installation and welding of the diaphragm and the inspection of the manufacturing completion, and the inability to guarantee the manufacturing quality of the diaphragm, etc. question

Pending Publication Date: 2021-04-20
华能陇东能源有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is that in the measuring structure in the prior art, since the groove structure formed between two adjacent guide vanes is composed of two irregular planes, the wedge-shaped block is stuck in During the process, it is easy to abut ag

Method used

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  • Lineation positioning device and lineation method for throat width detection
  • Lineation positioning device and lineation method for throat width detection
  • Lineation positioning device and lineation method for throat width detection

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Experimental program
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Embodiment 1

[0052] This embodiment provides a marking line positioning device, such as Figure 1 to Figure 7 As shown, it includes: a support 1 , a center positioning structure 2 and a rotary marking structure 3 . Wherein, the circle center positioning structure 2 is installed on the support member 1, and is used to carry out the circle center positioning of the inner circle 411 of the surface to be marked, and the rotary marking mechanism 32 is installed on the support member 1, and is positioned on the circle surface to be marked on the same radius size. A line mark is formed on the line surface.

[0053] Specifically, as figure 1 with figure 2 As shown, the partition in this embodiment includes a partition inner ring 41 and a partition outer ring 42, wherein the surface to be marked in this embodiment is a structure of several guide vanes 43, and the partition inner ring 41 is circular The inner circle 411 of the partition inner ring 41 has a cylindrical structure, and the central ...

Embodiment 2

[0064] This embodiment provides a scribing method for throat width detection, including the following steps:

[0065] S1: Fix the length of all radius positioning parts 21;

[0066] Adjust the third telescopic piece 231 and the fourth telescopic piece 232, thereby determine the distance that the radius positioning piece 21 protrudes relative to the second rotary piece 22, and ensure that the distance lengths that the three radius positioning pieces 21 protrude are equal. Specifically, you can pass The length scales on all the radius positioning members 21 are equal to ensure that the protruding lengths of the three radius positioning members 21 are equal;

[0067] S2: Determine the position of support 1:

[0068] The supporting member 1 is positioned at the center of the three radius positioning members 21 to determine the bottom placement position of the supporting member 1. Since the base area of ​​the supporting member 1 is relatively large, the axial direction of the supp...

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Abstract

The invention discloses a lineation positioning device and a lineation method for throat width detection. The lineation positioning device comprises: a supporting piece, a circle center positioning structure and a rotary lineation structure. Specifically, the circle center positioning structure comprises at least three radius positioning pieces, one end of each radius positioning piece is rotatably arranged on the supporting piece, and the other end of each radius positioning piece abuts against the inner circle of a to-be-scribed surface; the rotary lineation structure comprises a rotary distance measuring rod and a lineation mechanism, the rotary distance measuring rod is rotatably installed on the supporting piece, and the lineation mechanism is slidably installed on the rotary distance measuring rod so as to adjust the distance between a lineation assembly and the supporting piece and is provided with a lineation piece, and the lineation piece abuts against the to-be-scribed surface to slide so as to form a lineation mark on the to-be-scribed surface. The problem that subsequent partition plate assembly welding and manufacturing completion inspection are affected is avoided, and the manufacturing quality of the partition plate is improved and guaranteed.

Description

technical field [0001] The invention relates to the field of scribing measurement of technical irregularities, in particular to a scribing positioning device and a scribing method for throat width detection. Background technique [0002] During the installation and welding process of the steam turbine diaphragm and when the manufacture is completed, it is necessary to check the throat width of the steam passage. At present, special tools for measuring the throat width are usually used. Since the throat width is the minimum width between two guide vanes, the wedge-shaped block is inserted into the groove formed between two adjacent guide vanes, so that through the wedge-shaped block Obtain the actual distance length of the throat width from the marked length on the [0003] However, in the measurement structure of the above-mentioned structure, since the groove structure formed between two adjacent guide vanes is composed of two irregular planes, it is easy for the wedge blo...

Claims

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Application Information

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IPC IPC(8): G01B5/14B25H7/04
Inventor 王申桂欧楚雄张红卢平曹宇翔张昊昊高宏喜段增辉张增明
Owner 华能陇东能源有限责任公司
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