CN219977302U - Ellipticity measuring device - Google Patents

Abstract

The utility model relates to the technical field of ovality measuring devices, in particular to an ovality measuring device which comprises a supporting shaft, a telescopic measuring rod, a rolling adjusting part and a limiting component, wherein one end of the supporting shaft is provided with the measuring component, the other end of the supporting shaft is provided with the limiting component, the end part of the supporting shaft, which is close to the limiting component, is provided with a supporting bulge, one end of the telescopic measuring rod is arranged in the supporting shaft in a telescopic manner, the rolling adjusting part comprises a first rolling part and a second rolling part which are vertically connected, the other end of the telescopic measuring rod is connected with the second rolling part, the first rolling part is used for clinging to the blunt edge of the pipe end of a steel pipe, the first rolling part and the limiting component are respectively used for leaning against the blunt edge of the pipe end of the steel pipe on the same diameter, the second rolling part and the supporting bulge are respectively used for leaning against the inner wall of the pipe end of the steel pipe on the same diameter, and the axis of the limiting component is parallel to the axis of the first rolling part; the utility model has the advantages of simple structure, accurate reading and low economic cost, and can be suitable for measuring ovality of various pipe diameters.

Description

Ellipticity measuring device

Technical Field

The utility model relates to the technical field of ellipticity measuring devices, in particular to an ellipticity measuring device.

Background

Along with the development of science and technology, the application fields of the steel pipes are increasingly expanded, and the steel pipes are widely applied to the fields of oil gas transportation, chemical raw material transportation, ore pulp transportation, water transportation, road and bridge, steel structure facilities and the like. Different application fields have different quality requirements for manufacturing the steel pipe. However, in any application, the control of the geometric deviation of the steel pipe is becoming more and more strict. Ovality not only affects the butt joint quality of the steel pipes, but also has important influence on the construction efficiency.

The existing ovality measurement mainly relies on manual utilization of a tape measure, four points are measured according to the distribution of the Chinese character 'mi', the inner diameters of four steel pipes are obtained, the maximum diameter and the minimum diameter are measured, and the ovality is obtained by subtracting the minimum value from the maximum value. The method has the advantages of large randomness of the measured positions and poor measuring precision. Facing the large-caliber steel pipe, two persons are required to cooperate to operate. Or vertically clamping the whole steel pipe by adopting a vernier caliper perpendicular to the steel pipe, measuring four points according to the distribution of the Chinese character 'mi', obtaining the outer diameters of the four steel pipes, measuring the maximum diameter and the minimum diameter, and subtracting the minimum value from the maximum value to obtain ellipticity. The method has the advantages that the randomness of the measuring points is too large, the measuring tool is heavy, a plurality of people are needed to cooperate, the operation is difficult, and the efficiency is low.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides an ellipticity measuring device.

In order to achieve the above object, the present utility model provides an ellipticity measuring apparatus including: the steel pipe end blunt edge is used for clinging to the steel pipe end blunt edge, the first rolling part is used for leaning against the steel pipe end blunt edge on the same diameter respectively, the second rolling part is used for leaning against the steel pipe end inner wall on the same diameter respectively with the supporting bulge, and the axis of the limiting assembly is parallel to the axis of the first rolling part.

In an alternative embodiment, in the ovality measuring device provided by the utility model, the second rolling part is used for being clung to the inner wall of the steel pipe end and can roll along the inner wall of the steel pipe end, and the measuring protrusion on the first rolling part is used for being clung to the blunt edge of the steel pipe end.

In an optional embodiment, in the ovality measuring device provided by the utility model, a blocking part is arranged at one end of the telescopic measuring rod, which is close to the second rolling part, and the blocking parts are respectively arranged at two sides of the telescopic measuring rod.

In an optional embodiment, in the ovality measuring device provided by the utility model, the limiting component comprises a limiting shaft and a limiting fixing piece, the limiting shaft is sleeved in the limiting fixing piece, the limiting fixing piece is used for fixing the limiting shaft, and one end, far away from the supporting shaft, of the limiting shaft is used for being clung to the blunt edge of the pipe end of the steel pipe.

In an alternative embodiment, in the ovality measuring device provided by the utility model, the supporting shaft is a detachable spliced shaft.

In an alternative embodiment, in the ellipticity measuring device provided by the utility model, the telescopic measuring rod is provided with scales.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that: according to the ovality measuring device, a supporting shaft, a telescopic measuring rod, a rolling adjusting part and a limiting component are arranged, one end of the supporting shaft is provided with the measuring component, the other end of the supporting shaft is provided with the limiting component, the end, close to the limiting component, of the supporting shaft is provided with a supporting bulge, one end of the telescopic measuring rod is arranged in the supporting shaft in a telescopic mode, the rolling adjusting part comprises a first rolling part and a second rolling part which are vertically connected, one end, far away from the supporting shaft, of the telescopic measuring rod is connected with the first rolling part, the first rolling part and the limiting component are respectively used for abutting against blunt edges of pipe ends of steel pipes with the same diameter, and the second rolling part and the supporting bulge are respectively used for abutting against inner walls of the pipe ends of the steel pipes with the same diameter so as to measure ovality; the axis of the limiting component is parallel to the axis of the first rolling part; the utility model has the advantages of simple structure, accurate reading and low economic cost, and can be suitable for measuring ovality of various pipe diameters.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an ovality measuring device according to the present utility model;

FIG. 2 is a schematic side view of an ellipticity measuring device according to the present utility model;

fig. 3 is a schematic top view of an ovality measuring device provided by the present utility model.

[ reference numerals description ]

1. A support shaft; 11. a supporting protrusion; 2. a telescopic measuring rod; 3. a roll adjustment unit; 31. a first rolling part; 32. a second rolling part; 33. measuring the protrusion; 4. a limit component; 41. a limiting shaft; 42. a limit fixing piece; 5. a blocking portion; 6. a scale.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.

It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model provides an ellipticity measuring device, which comprises a supporting shaft 1, a telescopic measuring rod 2, a rolling adjusting part 3 and a limiting component 4, wherein one end of the supporting shaft 1 is provided with the measuring component, the other end of the supporting shaft is provided with the limiting component 4, the end, close to the limiting component 4, of the supporting shaft 1 is provided with a supporting bulge 11, one end of the telescopic measuring rod 2 is telescopically arranged in the supporting shaft 1, the rolling adjusting part 3 comprises a first rolling part 31 and a second rolling part 32 which are vertically connected, the other end of the telescopic measuring rod 2 is connected with the second rolling part 32, the first rolling part 31 is used for being clung to the blunt edge of the pipe end of a steel pipe, the first rolling part 31 and the limiting component 4 are respectively used for being clung to the blunt edge of the pipe end of the steel pipe on the same diameter, the second rolling part 32 and the supporting bulge 11 are respectively used for being clung to the inner wall of the pipe end of the steel pipe on the same diameter, the axis of the limiting component 4 is parallel to the axis of the first rolling part 31, and scales 6 are arranged on the telescopic measuring rod 2. In the ovality measuring device provided by the utility model, the first rolling part 31 and the limiting component 4 are respectively used for propping against the blunt edge of the pipe end of the steel pipe with the same diameter, the second rolling part 32 and the supporting bulge 11 are respectively used for propping against the inner wall of the pipe end of the steel pipe with the same diameter, so that ovality is measured, the structure is simple, the reading is accurate, the economic cost is low, and the ovality measuring device is suitable for measuring ovality of various pipe diameters.

In the ovality measuring device provided by the utility model, the second rolling part 32 is used for being clung to the inner wall of the pipe end of the steel pipe, the second rolling part 32 can roll along the inner wall of the pipe end of the steel pipe for selecting different positions to measure, the measuring protrusion 33 on the first rolling part 31 is used for being clung to the blunt edge of the pipe end of the steel pipe, the measuring protrusion 33 is of a circular structure, the measuring protrusion 33 is arranged for being convenient for locating the position, and the measuring accuracy is improved, wherein the first rolling part 31 and the second rolling part 32 can adopt bearings.

In addition, in the ovality measuring device provided by the utility model, a blocking part 5 is arranged at one end of the telescopic measuring rod 2, which is close to the second rolling part 32, and the blocking parts 5 are respectively arranged at two sides of the telescopic measuring rod 2 so as to play a limiting role.

Furthermore, in the ovality measuring device provided by the utility model, the limiting assembly 4 comprises the limiting shaft 41 and the limiting fixing piece 42, the limiting shaft 41 is sleeved in the limiting fixing piece 42, the limiting shaft 41 can adjust the position in the limiting fixing piece 42, when the limiting shaft 41 is adjusted to a required position, a nut on the limiting fixing piece 42 is screwed, and when the position of the limiting shaft 41 is required to be adjusted, the nut is unscrewed; the limiting fixing piece 42 is used for fixing the limiting shaft 41, one end, away from the supporting shaft 1, of the limiting shaft 41 is used for being clung to the blunt edge of the pipe end of the steel pipe, and one end, away from the supporting shaft 1, of the limiting shaft 41 is a supporting measuring point of the blunt edge of the pipe end of the steel pipe.

Furthermore, in the ovality measuring device provided by the utility model, the supporting shaft 1 is a detachable splicing shaft, and the detachable splicing shaft is arranged, so that the ovality measuring device can be suitable for measuring ovality of various pipe diameters, is convenient to detach and replace and is convenient to carry.

It should be understood that the above description of the specific embodiments of the present utility model is only for illustrating the technical route and features of the present utility model, and is for enabling those skilled in the art to understand the present utility model and implement it accordingly, but the present utility model is not limited to the above-described specific embodiments. All changes or modifications that come within the scope of the appended claims are intended to be embraced therein.

Claims (6)

1. The utility model provides an ovality measuring device, its characterized in that, including back shaft (1), flexible measuring stick (2), roll adjustment portion (3) and spacing subassembly (4), the one end of back shaft (1) is equipped with measuring component, and the other end is equipped with spacing subassembly (4), back shaft (1) is close to the tip of spacing subassembly (4) is equipped with supporting bulge (11), the one end telescopic locating of flexible measuring stick (2) in back shaft (1), roll adjustment portion (3) including perpendicular first roll portion (31) and second roll portion (32) that connect, the other end of flexible measuring stick (2) with second roll portion (32) are connected, first roll portion (31) are used for hugging closely steel pipe end blunt edge, first roll portion (31) with spacing subassembly (4) are used for respectively to lean on the steel pipe end blunt edge on same diameter, second roll portion (32) with supporting bulge (11) are used for respectively to lean on the pipe end inner wall on same diameter, axis (31) parallel with first axis portion (31).

2. An ovality measuring device according to claim 1, characterized in that the second rolling part (32) is adapted to abut against the inner wall of the pipe end of the steel pipe and that the second rolling part (32) is adapted to roll along the inner wall of the pipe end of the steel pipe, and that the measuring protrusions (33) on the first rolling part (31) are adapted to abut against the blunt edge of the pipe end of the steel pipe.

3. The ellipticity measuring device according to claim 2, wherein a blocking portion (5) is arranged at one end of the telescopic measuring rod (2) close to the second rolling portion (32), and the blocking portions (5) are respectively arranged at two sides of the telescopic measuring rod (2).

4. An ovality measuring device according to any one of claims 1-3, characterized in that the limiting assembly (4) comprises a limiting shaft (41) and a limiting fixing piece (42), wherein the limiting shaft (41) is sleeved in the limiting fixing piece (42), the limiting fixing piece (42) is used for fixing the limiting shaft (41), and one end, far away from the supporting shaft (1), of the limiting shaft (41) is used for being clung to a blunt edge of a pipe end of a steel pipe.

5. An ovality measuring device according to any one of claims 1-3, characterized in that the support shaft (1) is a detachable spliced shaft.

6. An ovality measuring device according to any one of claims 1-3, characterized in that the telescopic measuring rod (2) is provided with a scale (6).