CN103486948A

CN103486948A - Butt joint circular tube measurement standard line tension device

Info

Publication number: CN103486948A
Application number: CN201310421959.8A
Authority: CN
Inventors: 高军绪; 王建森; 张镇
Original assignee: Qingdao Port Group Co Ltd
Current assignee: Qingdao Port Group Co Ltd
Priority date: 2013-09-17
Filing date: 2013-09-17
Publication date: 2014-01-01
Anticipated expiration: 2033-09-17
Also published as: CN103486948B

Abstract

The invention discloses a butt joint circular tube measurement standard line tension device. The shortcoming that an existing standard line for straightness measuring of butt joint of two circular tubes cannot be easily tensioned directly by hand, and measuring errors are large is overcome. A support is fixed on the outer side of a U-shaped clamp which can be clamped on the tube wall at one end of a circular tube. A central line of a line roller and the circular tube are vertically supported on the support. Iron wires wound on the line roller are tightly attached on the U-shaped clamp and can stride across two butt joint circular tubes to be led to another U-shaped clamp of the tube wall of the outer end of the opposite circular tube to be tightly attached and fixed. Due to the fact that the tensioned iron wires are used as standard lines for straightness measuring of butt joint of the circular tubes, the two ends of the iron wires are fixedly attached on the U-shaped clamps at the two ends of the butt joint circular tubes, then the iron wires wind the line roller to be fixed, the line roller rotates to tension the iron wires to be used as the standard lines, mechanical tensioning replaces manual tensioning, tensioning is easy and quick, using is convenient, measuring errors are small, accuracy and reliability are achieved, disassembling and assembling are convenient, and the device can be repeatedly used on different butt joint tubes.

Description

Docking pipe measurement standard line take-up device

Technical field

The invention belongs to aid, specifically a kind of before to large-scale pipe docking, use the take-up device of standard lines during two interface centerings as measurement.

Background technology

In the manufacturing process of large-scale steel structure machinery, many members are to adopt the pipe docking to form, and especially resemble the strut of the harbours such as overhead crane, rail mounted crane with heavy mechanical equipment, and its docking length reaches more than 30 meter.The interface of two pipes must be aligned before the pipe docking, be welded again when the linearity of determining two pipe docking meets the requirements.At present, the linearity of measuring two pipes is generally to adopt the mode of drawing standard lines, two people are with pulling fine rule rope two ends, stride across the two external end head tensions of docking pipe as standard lines, distance of observing from standard lines to docking pipe outer tube wall along the line, if distance error in allowed limits, mean that the linearity of two pipes is qualified.Because the length of pipe docking is longer, employment pulls is with flexible general line, draws not tight measuring error large, when La get Tai is tight, easily breaks again; Make standard lines with iron wire, staff directly draws also and can't strain, and measuring error is still very large.

Summary of the invention

Technical matters to be solved by this invention is, overcomes prior art two pipes docking and measures the standard lines that linearitys are used, and with the staff direct cable, is not easy to strain, and the shortcoming that measuring error is large, provide a kind of docking pipe measurement standard line take-up device.

The problems referred to above that exist in order to solve prior art, the present invention adopts following technical proposals to realize: in the U-shaped folder outside that can be clamped on pipe one termination tube wall, be fixed with support, the center line of line roller is vertical with pipe, be supported on support rotationally, the iron wire be wound around on the line roller is adjacent on described U-shaped folder, and can stride across two docking pipes, guide into and can be clamped on the pipe external end head tube wall of opposite, be adjacent to fixing above U-shaped folder with identical another of the size of above-mentioned U-shaped folder.

The present invention also has following technical characterictic:

On the U-shaped upper wall of described two U-shapeds folder, be separately installed with and iron wire is pressed in to U-shaped presss from both sides top line pressing bolt;

On described support, ratchet is installed, described ratchet coordinates with the line roller one hard-wired ratchet in termination, forms the ratchet device of defence line roller reversion.

During use, first will need two pipe ends of docking relative, then will fix standoff U-shaped clamps on the external end head tube wall that is clipped in a pipe, the U-shaped of belt supporting frame is not clamped on the external end head tube wall that is clipped in the docking pipe, be supported on the iron wire be wound around on the line roller on support, above U-shaped folder through belt supporting frame, guide another U-shaped folder be installed on another pipe end tube wall into and above fix.The rotational line roller makes the iron wire tension, and the distance with ruler multimetering iron wire to circular tube external wall, if distance error in allowed limits, just can weld; If the super scope of distance error, will adjust a linearity that guarantees two pipes in the docking pipe.

Advantage of the present invention and good effect are, while due to the pipe docking, measuring linearity, use tight wire as standard lines, one end of iron wire is adjacent to above being fixed on unsupported U-shaped folder, above the U-shaped folder of the other end through the identical belt supporting frame of size with above-mentioned U-shaped folder, is adjacent to, then around fixing to the line roller, rotational line roller tension iron wire is as the measurement standard line, replace people's finger-tight with machinery, tension easily, fast, easy to use, measuring error is little, accurately and reliably.Said apparatus is simple in structure, when adjust the docking of a pair of pipe fixing after, unload said apparatus and refill to clip on next docking pipe and use, but Reusability, easy accessibility.

The accompanying drawing explanation

Fig. 1 is perspective view of the present invention;

The U-shaped clamping structure enlarged drawing that Fig. 2 is A section in Fig. 1.

Embodiment

Below in conjunction with drawings and Examples, the invention will be further described.

In Fig. 1, the U-shaped open card of U-shaped folder 6 on the right-hand member head tube wall of pipe 4, holds out against with the trip bolt 6.1 on the upper wall 6.2 that is screwed in U-shaped folder 6 on the right; On the left end head tube wall of left side pipe 4, be screwed in trip bolt 1.1 on the upper wall 1.2 of U-shaped folder 1 and hold out against.The right side of leaving pipe 4 of U-shaped folder 6 is fixed with frame set 10, and the center line of line roller 7 is vertical with the center line of pipe 4, and two ends use bearings on the wall of support 10.The iron wire 3 be wound around on line roller 7, through above the upper wall 6.2 of described U-shaped folder 6 and be adjacent to, strides across two of left and right docking pipes 4, guides into above pressing from both sides the upper wall 1.2 of the identical U-shaped folder 1 of 6 size with U-shaped and is adjacent to (referring to Fig. 2).

Because the size of described U-shaped folder 1 and U-shaped folder 6 is identical, the thickness consistent size of upper wall 6.2 thickness and described upper wall 1.2, the height of U-shaped opening 1.3 too, and be fixed on equally the two ends of butt tube, tight wire 3 is attached to again described upper wall 6.2 and above upper wall 1.2, like this, only, when the iron wire 3 as the measurement standard line is all consistent to the distance of left and right two butt tubes, the linearity of butt tube just meets the requirements.

In order to make measurement more accurate, must make iron wire 3 tight with the top laminating of U-shaped folder 1 and U-shaped folder 6, at described upper wall 1.2 with above upper wall 6.2, be separately installed with and compress the line pressing bolt 2 that iron wire 3 two ends are used.

During use, first will need two pipe 4 terminations of docking relative, by the centering roughly of the weld seam 5 between pipe, the U-shaped that then will be fixed with support 10 presss from both sides 6 clampings on pipe 4 right-hand member head tube walls, U-shaped is pressed from both sides to 1 clamping on the left end head tube wall of left side docking pipe 4, be supported on the iron wire 3 be wound around on the line roller 7 on support 10, by U-shaped press from both sides 6 above, guide on the line pressing bolt 2 above the U-shaped folder 1 be installed on the pipe 4 left end head tube walls of left side and be fixed, rotational line roller 7 makes iron wire 3 tensions, and right-hand member is pressed abd fixed on above U-shaped folder 6 by same line pressing bolt 2.Distance with ruler multimetering iron wire 3 to pipe 4 outer walls, if distance error in allowed limits, just can weld.So just guaranteed the linearity of two pipes.For rotational line roller 7 convenience, an end of online roller 7 is provided with the hole 7.1 of inserting rocking bar 7.2 use.

In order to prevent the reversion of line roller 7 when rotational line roller 7 tension iron wires 3 are adjusted, on described support 10, ratchet 9 is installed, described ratchet 9 ratchet 8 fixing with line roller 7 one terminations coordinates, and forms the ratchet device that lock-in line roller 7 can only rotate to a direction.

Claims

1. one kind docks pipe measurement standard line take-up device, it is characterized in that: in the U-shaped folder outside that can be clamped on pipe one termination tube wall, be fixed with support, the center line of line roller is vertical with pipe, be supported on support rotationally, the iron wire be wound around on the line roller is adjacent on described U-shaped folder, and can stride across two docking pipes, guide into and can be clamped on the pipe external end head tube wall of opposite, be adjacent to fixing above U-shaped folder with identical another of the size of above-mentioned U-shaped folder.

2. docking pipe measurement standard line take-up device as claimed in claim 1 is characterized in that: on the U-shaped upper wall of described two U-shapeds folder, be separately installed with and iron wire is pressed in to U-shaped presss from both sides top line pressing bolt.

3. docking pipe measurement standard line take-up device as claimed in claim 1, it is characterized in that: on described support, ratchet is installed, described ratchet coordinates with the line roller one hard-wired ratchet in termination, forms the ratchet device of defence line roller reversion.