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A level measuring device for tower base

A technology of level measurement and tower base, which is used in measuring devices, inclination measurement, surveying and navigation, etc. It can solve the problems of large space occupied by heavy hammers, safety hazards in the use of tower bases, and unfavorable surface level measurement, so as to improve accuracy. stability, accurate and reliable measurement, and the effect of reducing fluidity

Active Publication Date: 2018-12-14
CHENGDU 90 DEGREE IND PROD DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the installation process of the tower crane, the qualification of the tower foundation becomes the most important safety guarantee in the process of using the tower crane. If the tower foundation is deflected by 1 degree in time, it will also cause harm to the safety of the tower foundation. Therefore, a method that can measure the tower foundation is needed. base level device
Nowadays, a heavy hammer is often used for horizontal calibration, but the heavy hammer often occupies a large space in the vertical direction, which is not conducive to the measurement of surface level. In addition, it takes a long time to calibrate and is greatly affected by wind or other factors. bigger

Method used

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  • A level measuring device for tower base
  • A level measuring device for tower base
  • A level measuring device for tower base

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the present invention discloses a level measuring device for a tower base, which is characterized in that it includes a cross frame 7 and a first laser generator and a first laser generator respectively arranged on a pair of sides of the cross frame 7. The mapping plate 9, the second laser generator 11 and the second mapping plate 10 located on the other opposite side of the cross 7; the first laser generator and the second laser generator 11 always emit laser light in the horizontal direction to irradiate the first laser beam respectively. On the mapping plate 9 and on the second mapping plate 10.

[0032] The first mapping board 9 or the second mapping board 10 has intersecting horizontal scales and vertical scales, and when the cross 7 is horizontal, the laser is irradiated to the intersection of the horizontal scales and the vertical scales. Through the design of the scale, it is convenient to observe the deflection amount, thereby improv...

Embodiment 2

[0038] Based on the level measuring device of embodiment 1, its measuring method is:

[0039] Step 1: Adjust the alignment device 8 below the four arms of the cross frame 7 to the same height, then adjust the relative position of the alignment device 8 so that the lower end of the alignment device 8 is aligned with the tower base and the tower crane to be connected Location;

[0040] Step 2: Observe whether the lower parts of the four alignment devices 8 touch the tower base, so as to judge the flatness of the tower base to be connected;

[0041] Step 3: Turn on the first laser generator and the second laser generator 11, and irradiate the laser horizontally on the first mapping board 9 and the second mapping board 10; observe the position of the laser light on the mapping board to judge the levelness of the tower base. the structure.

[0042] The structure and method measure the four points at the fixed position of the tower crane, thereby ensuring the safety and reliabilit...

Embodiment 3

[0044] Based on the level measuring device of Example 1, the liquid is made up of the following parts by weight: 6 parts of emulsified paraffin wax slurry, 17 parts of urea-formaldehyde resin, 6 parts of sodium thiosulfate, 6 parts of polyvinyl alcohol, 4 parts of acetic acid, 16 parts of hide glue , 13 parts of emulsifier, 8 parts of propionic acid alcohol, 14 parts of sodium hydroxide, 22 parts of polyacrylamide, 7 parts of butadiene rubber, 8 parts of pine tar, 12 parts of microcrystalline wax, 9 parts of stearic acid, appropriate amount of deionized water.

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Abstract

The invention relates to the field of measuring tools used for mounting of construction cranes, in particular to a level measurement device for tower footings. The level measurement device comprises cross frame, a laser generator, a first mapping plate, a second laser generator and a second mapping plate, wherein the first generator and the first mapping plate are respectively arranged on the opposite sides of the cross frame, and the second laser generator and the second mapping plate are arranged on the other opposite sides of the cross frame; the first laser generator and the second laser generator always send horizontal laser irradiating on the first mapping plate and the second mapping plate. By the arrangement, junctions between the tower footings and the cranes can be accurately judged whether to be on the same level or not through the laser always kept on the same lever, level condition seen at a macro level is avoided, more accuracy in measurement is achieved, and accuracy in judgment of level measurement can be more accurate by the aid of features of the laser; judgment on tilt is facilitated by magnifying distance of the tilt angle from far distance; the level of the laser is always kept, and accuracy in level measurement is improved.

Description

technical field [0001] The invention relates to the field of measuring tools used for installation of tower cranes for construction, in particular to a level measuring device for tower foundations. Background technique [0002] The installation of the tower crane on the ground requires the basic part; the tower body is the body of the tower body, which is also the raised part; the jacking part is to make the tower crane rise; the slewing is to keep the upper body of the tower crane to rotate horizontally; the hoisting mechanism is used to It is used to lift heavy objects; the balance jib is to maintain moment balance; the lifting jib is generally the force-bearing part of lifting heavy objects; the trolley is used to install pulley blocks, steel ropes and hooks, and it is also the direct force-bearing part; Of course, the top of the tower is used to keep the force balance of the jib; the cab is the place to operate; the luffing is to make the car run along the track. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C9/00
CPCG01C9/00
Inventor 李燕
Owner CHENGDU 90 DEGREE IND PROD DESIGN CO LTD