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Circular groove medium diameter detecting ruler and using method thereof

A technology of circular groove and measuring ruler, applied in the direction of mechanical diameter measurement, etc., can solve the problems of large measurement error and cumbersome method, and achieve the effect of improving measurement accuracy, flexible and convenient middle diameter, and reducing labor intensity.

Pending Publication Date: 2019-07-16
LANZHOU LS HEAVY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is cumbersome, and due to the influence of the proficiency of the testing personnel, the measurement error is large

Method used

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  • Circular groove medium diameter detecting ruler and using method thereof
  • Circular groove medium diameter detecting ruler and using method thereof

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Embodiment Construction

[0015] Taking the measurement of the middle diameter of the sealing groove of the connecting surface of the flange ring as an example, the present invention is specifically described in conjunction with the accompanying drawings.

[0016] Such as figure 1 figure 2 As shown, a circular groove middle diameter detection ruler has the following structure: a main ruler 1, a vernier ruler 2, two spherical measuring feet 3, two rotating shafts 4, a toggle slider 5, a sliding clamp 6, a tight Fixed screw 7; a long groove is opened in the middle of the main ruler 1, the boss at the lower end of the vernier ruler 2 and the toggle slider 5 is closely matched with the middle groove of the main ruler 1, and the boss at the lower end of the vernier ruler 2 and the toggle slider 5 penetrates into the main ruler 1 The middle groove; use a rotating shaft 4 to fix a spherical measuring foot 3 on one end of the main ruler 1, use another rotating shaft 4 to clamp another spherical measuring foo...

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Abstract

The invention relates to a circular groove medium diameter detecting ruler and a using method thereof, which belong to the field of pressure container and pressure pipe sealing and overcome the defects of inconvenient measurement and large errors in the prior art. The structure comprises a main ruler 1, a vernier ruler 2, two spherical measuring feet 3, two rotating shafts 4, a toggle slider 5, asliding clamp 6 and the like, wherein the vernier ruler 2 and the boss at the lower end of the toggle slider 5 pass through the middle groove of the main ruler 1; one rotating shaft 4 fixes one spherical measuring foot 3 on one end of the main ruler 1, the other rotating shaft 4 clamps the other spherical measuring foot 3 and the toggle slider 5 in the long groove of the main ruler and can slide in the long groove of the main ruler 1. The two spherical measuring feet 3 are placed in circular grooves in use, the main ruler 1 is rotated along the circular groove, and when the vernier ruler 2 moves to the maximum distance, the center distance between the two spherical measuring feet 3 is the circular groove medium diameter. The ruler and the method are applicable to medium diameter measurement for pressure container and pressure pipe-used flange ring connection surface sealing grooves and also all circular grooves.

Description

technical field [0001] The invention belongs to the field of manufacturing pressure vessels and pressure pipes, and relates to the measurement of the middle diameter of circular grooves. Background technique [0002] In the manufacture of pressure vessels and pressure pipes, sealing is essential, and the most common method is to use the flange ring connection surface to seal, and the role of the sealing groove is very important. In the manufacture and maintenance of the flange ring connection surface, it is often necessary to measure the middle diameter of the sealing groove. The sealing groove is usually a circular groove. The method of measuring the middle diameter of the circular groove in the prior art is to use a straightedge to measure the outer diameter and inner diameter of the circular groove respectively, and then calculate the middle diameter. This method is cumbersome, and due to the influence of the proficiency of the testing personnel, the measurement error ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/08
CPCG01B5/08
Inventor 刘仙君周斌马冬和李义民杜金涛姚金杉李世甲石承龙李学燕王志刚郝亮宋浩
Owner LANZHOU LS HEAVY EQUIP
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