CN218673455U

CN218673455U - Device for detecting roundness of duct piece and assembling wrong platform

Info

Publication number: CN218673455U
Application number: CN202222693742.XU
Authority: CN
Inventors: 雷鹏飞; 叶飞; 韩兴博; 刘畅; 苏恩杰; 张鑫; 史龙岗
Original assignee: Changan University; First Engineering Co Ltd of China Railway No 12 Bureau Group Co Ltd
Current assignee: Changan University; First Engineering Co Ltd of China Railway No 12 Bureau Group Co Ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-03-21
Anticipated expiration: 2032-10-12

Abstract

The utility model provides a device for detecting section of jurisdiction circularity and assembling wrong platform, the lateral surface of pick-up plate is provided with the pressor coating that discolours, the inboard central point of pick-up plate puts and is provided with the handle, the pressor coating that discolours is made by the pressor organic coating that discolours, in the time of the detection, compress tightly the arc in the section of jurisdiction inboardly, according to the colour development condition of coating on the arc, judge whether have wrong platform or section of jurisdiction circularity not enough between the section of jurisdiction, this device can realize checking section of jurisdiction circularity before the section of jurisdiction advances, ensure the section of jurisdiction quality, can realize again that the section of jurisdiction is assembled when detecting the hoop wrong platform, so as to assemble the adjustment, and has low cost, and easy to carry, the simple operation, advantages such as suitability is good, can popularize and apply to shield and assemble check out equipment or device technical field in the section of jurisdiction.

Description

Device for detecting roundness of duct piece and assembling wrong platform

Technical Field

The utility model belongs to the technical field of shield constructs section of jurisdiction and assembles check out test set or device, concretely relates to a device that is used for detecting section of jurisdiction circularity and assembles wrong platform.

Background

The segment is used as a shield tunnel lining supporting structure, and the quality of the segment is closely related to the safety of the tunnel. A conventional annular pipe ring is a circle formed by 6 pipe pieces and used for uniformly bearing surrounding rock pressure and reducing stress concentration, so that the radian of each pipe piece has direct influence on the roundness of the pipe ring. Meanwhile, in the assembling process of the duct pieces, due to reasons such as improper operation and the like, annular staggering can occur between the two duct pieces, and therefore damage, cracking, water leakage and other diseases of the subsequent duct pieces are caused.

The field entrance inspection of the duct piece at the present stage usually inspects whether the appearance of the duct piece has appearance defects such as missing edges, falling angles and the like, and does not have corresponding inspection means for the radian of the duct piece; simultaneously when the section of jurisdiction is assembled, the wrong platform between two sections of jurisdiction of assembling the completion also is multi-purpose range estimation, and the mode of touching distinguishes, lacks the accurate means and carries out wrong platform inspection to the section of jurisdiction of just assembling the completion.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide one kind both can detect section of jurisdiction roundness before the section of jurisdiction advances, detect whether there is the device of hoop wrong platform between two adjacent sections of jurisdiction simultaneously when assembling.

The technical scheme for solving the technical problems is as follows: the utility model provides a device for detecting section of jurisdiction circularity and assemble wrong platform, the lateral surface of pick-up plate is provided with the piezochromic coating, and the inboard central point of pick-up plate puts and is provided with the handle.

The utility model discloses a pick-up plate is the arc, and the outer arc radius of arc suits with the internal diameter of section of jurisdiction, and arc central point puts to process has circular recess, and the one end of handle is fixed in the circular recess.

The utility model discloses a be provided with 4 strengthening ribs in 360 phase places between pick-up plate and the handle.

The handle of the utility model is a telescopic structure.

Because the utility model discloses a process into the pick-up plate with the arc that the section of jurisdiction suited, the spraying has the pressor organic coating that discolours in the arc outside, examine time measuring, compress tightly the arc in the section of jurisdiction inboardly, according to the chromogenic condition of coating on the arc, judge whether there is wrong platform or section of jurisdiction roundness not enough between the section of jurisdiction, this device can realize checking section of jurisdiction roundness before the section of jurisdiction advances, ensure the section of jurisdiction quality, can realize again that the section of jurisdiction detects the hoop wrong platform when assembling, so that assemble the adjustment, and has a low cost, and is easy to carry, the simple operation, advantages such as suitability is good, can popularize and apply the shield and construct the section of jurisdiction and assemble check out test set or device technical field.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a schematic view of detecting the roundness of a segment.

Fig. 5 is a diagram showing the effect of detecting the dislocation between the pipe pieces.

In the figure: 1. a piezochromic coating; 2. detecting a plate; 3. reinforcing ribs; 4. a handle.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples, but the present invention is not limited to these examples.

Example 1

In fig. 1 ~ 3, the utility model relates to a device for detecting section of jurisdiction circularity and assembling wrong platform, constitute as an organic whole even by pick-up plate 2 and handle 4, the lateral surface of pick-up plate 2 scribbles and presses discoloration coating 1, it is made by the organic coating that changes color of suppression to press discoloration coating 1, its colour presents the difference under the pressure effect of difference, this embodiment presses the back according to pick-up plate 2 and section of jurisdiction, whether there is wrong platform between the circularity of section of jurisdiction and two sections of jurisdiction to press the colour that discoloration coating 1 presented to press. Pick-up plate 2 is the arc, and the outer arc radius of arc suits with the internal diameter of section of jurisdiction, makes pick-up plate 2 according to the internal diameter of prefabricated section of jurisdiction, and arc central point puts the processing and has circular recess, and in the one end of handle 4 was fixed in circular recess, furtherly, in order to guarantee handle 4 stability, install 4 strengthening ribs 3 between pick-up plate 2 and the handle 4 in 360 looks cophases, in order to adapt to the different high operators, handle 4 is extending structure.

As shown in fig. 4, the roundness detection using the apparatus includes the following steps:

the method comprises the following steps: when the duct piece enters the field for inspection, the piezochromic organic coating is sprayed on the surface of the detection plate 2;

step two: the worker tightly attaches the center of the detection plate 2 to the duct piece and forcibly presses the handle 4;

step three: the device is picked up, the coloring condition of the coating on the surface of the detection plate 2 is observed, if the surface has obvious chromatic aberration, the roundness of the duct piece is proved not to reach the standard, and the duct piece is not entered; if no obvious color difference exists, the roundness of the duct piece is qualified and the duct piece enters the field.

As shown in fig. 5, the steps of detecting the circumferential dislocation when the device is used for assembling the duct pieces are as follows:

the method comprises the following steps: after the two adjacent pipe pieces are assembled, a worker sprays the piezochromic organic coating on the surface of the detection plate 2;

step two: aligning the center of the detection plate 2 to the joint of the pipe piece, and pressing the handle 4 with force;

step three: picking up the device, observing the color development condition of the coating on the surface of the detection plate 2, and if the surface has obvious chromatic aberration, proving that a wrong platform exists between the two duct pieces;

step four: taking off one of the duct pieces to assemble again, and repeating the first step to the third step;

step five: until there is no obvious color difference on both sides of the detecting plate, it is proved that there is no wrong platform between the two segments, and the assembly is qualified.

Claims

1. The utility model provides a device for detecting section of jurisdiction circularity and assembling wrong platform which characterized in that: the outer side surface of the detection plate (2) is provided with a piezochromic coating (1), and the central position of the inner side of the detection plate (2) is provided with a handle (4); the detecting plate (2) is an arc-shaped plate, the outer arc radius of the arc-shaped plate is matched with the inner diameter of the pipe piece, a circular groove is machined in the center of the arc-shaped plate, and one end of the handle (4) is fixed in the circular groove.

2. The device for detecting the roundness and the assembling dislocation of the duct piece according to the claim 1, which is characterized in that: 4 reinforcing ribs (3) are arranged between the detection plate (2) and the handle (4) in a 360-degree phase position.

3. The device for detecting the roundness and the assembling dislocation of the duct piece according to the claim 1, which is characterized in that: the handle (4) is of a telescopic structure.