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Measuring tool for eccentric pin hole of medium-high pressure internal-external cylinder of steam turbine

A measuring tool, high and medium pressure technology, applied in the direction of mechanical measuring devices, measuring devices, mechanical devices, etc., can solve the problems of eccentric pins with large measurement errors, high labor intensity, and long assembly time, so as to achieve small measurement errors and reduce labor costs. strength, saving assembly time

Inactive Publication Date: 2011-06-15
HARBIN TURBINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of excessive measurement error of eccentric pins, long assembly time, heavy workload and high labor intensity, and further provide a tool for measuring eccentric pin holes of internal and external cylinders of high and medium pressure of steam turbines

Method used

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  • Measuring tool for eccentric pin hole of medium-high pressure internal-external cylinder of steam turbine
  • Measuring tool for eccentric pin hole of medium-high pressure internal-external cylinder of steam turbine
  • Measuring tool for eccentric pin hole of medium-high pressure internal-external cylinder of steam turbine

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, the tool for measuring the eccentric pin holes of the inner and outer cylinders of steam turbines in this embodiment includes a slider 2, a key 3, two first set screws 4, a stud bolt 6, a positioning sleeve 7, and a second set screw 8 and connecting shaft 10; one end of the slider 2 has a groove 2-1 along the axial direction of the slider 2, and a through hole 2-2 is opened on the slider 2 along the radial direction of the slider 2, so The key 3 is installed in the through hole 2-2, and the upper end and the lower end of the key 3 all extend out of the slider 2, and a first set screw 4 is respectively installed on the upper end surface and the lower end surface of the key 3, and the positioning sleeve One end of 7 is installed in the groove 2-1, the positioning sleeve 7 is transitionally fitted with the groove 2-1, the stud bolt 6 is installed in the positioning sleeve 7, and the...

specific Embodiment approach 2

[0008] Specific implementation mode two: combination figure 1 To illustrate this embodiment, the measuring tool of this embodiment is further provided with a long rod 12 and a knob 14 , one end of the long rod 12 is fixedly connected to the connecting shaft 10 , and the other end of the long rod 12 is fixedly connected to the knob 14 . Such setting is convenient for the operator to measure when the cylinder size is large. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination figure 1 The present embodiment will be described. The knob 14 of the present embodiment is knurled. With such arrangement, the friction is increased, which is convenient for the operator to use. Other compositions and connections are the same as those in the second embodiment.

[0010] The using method of measuring tool of the present invention is as follows (see image 3 ): When using the measuring tool, first install the key 3 on the slider 2, use the stud bolt 6 to assemble the positioning sleeve 7, the slider 2 and the connecting shaft 10, and connect the long rod 12 to the connecting shaft 10 , and finally the knob 14 is connected with the long rod 12 . After all parts are combined and installed, insert the positioning sleeve 7 into the pin hole 15 of the outer cylinder first, then press the side of the slider 2 on the keyway 16 of the inner cylinder, and then turn the long rod 12 to lock it, and finally put the ...

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Abstract

The invention discloses a measuring tool for an eccentric pin hole of a medium-high pressure internal-external cylinder of a steam turbine, relating to a measuring tool for an eccentric pin hole of an internal-external cylinder of a steam turbine. The measuring tool is designed for solving the problems of large measuring error, long assembling time, large workload and big labor intensity of the eccentric pin. One end of the slide block of the measuring tool is provided with a groove along the axial direction of the slide block; the slide block is provided with a through hole along the radial direction of the slide block; a key is installed in the through hole; the upper end and lower end of the key extend out of the slide block; the upper end surface and lower end surface of the key are respectively provided with a first set screw; one end of a locating sleeve is installed in the groove; the locating sleeve is in transition fit with the groove; a stud bolt is installed in the locating sleeve, and a gap is reserved between the stud bolt and the locating sleeve; one end of the stud bolt is fixedly connected with the slide block; the other end of the stud bolt is fixedly connected with a connecting shaft; and a second set screw is installed on the rotary surface of the locating sleeve. The measuring tool has the advantages that the measuring error is small, the assembling time is saved and repetitive work can be avoided, thus the workload is reduced, and the labor intensity of workers is lightened.

Description

technical field [0001] The invention relates to a tool for measuring eccentric pin holes of inner and outer cylinders of a steam turbine, belonging to the technical field of mechanical processing. Background technique [0002] When assembling the high and medium pressure inner and outer cylinders of the steam turbine, in order to fix the inner and outer cylinders, a keyway is provided at the bottom of the inner cylinder, and a positioning pin hole is provided at the bottom of the outer cylinder. Due to the processing error of the keyway at the bottom of the inner cylinder and the positioning pin at the bottom of the outer cylinder during the processing of the cylinder, it needs to be used as an eccentric pin for positioning. When making eccentric pins, it is necessary to measure the eccentricity of the keyway of the inner cylinder and the pin hole of the outer cylinder. Due to the separation between the inner and outer cylinders, it is difficult to measure the eccentricity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/252
Inventor 詹春辉姚青文刘立辉李文涛关占群于志锋梁伟朱建军董生权王海波王超
Owner HARBIN TURBINE
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