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Level measurement device for tower footings

A technology of level measurement and tower base, which is used in measuring devices, inclination measurement, mapping and navigation, etc., can solve the problems of safety hazards in tower base use, large space occupied by heavy hammers, unfavorable surface level measurement, etc., to achieve accurate measurement. Reliable, Improve Accuracy, Reduce Liquidity Effects

Active Publication Date: 2017-01-25
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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  • Level measurement device for tower footings
  • Level measurement device for tower footings
  • Level measurement device for tower footings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the present invention of the present invention discloses a level measuring device for the tower base, which is characterized by comprising a cross-shaped frame 7 and a first laser generator and a first laser generator respectively provided on a pair of sides of the cross-shaped frame 7. The mapping board 9, the second laser generator 11 and the second mapping board 10 arranged on the opposite side of the cross-shaped frame 7, the first laser generator and the second laser generator 11 always emit horizontal laser light to the first On the mapping board 9 and on the second mapping board 10.

[0032] The first mapping board 9 or the second mapping board 10 has a horizontal scale and a vertical scale that intersect. When the cross-shaped frame 7 is horizontal, the laser is irradiated to the intersection of the horizontal scale and the vertical scale. Through the design of the scale, it is convenient to observe the amount of deflection, thereby impro...

Embodiment 2

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

[0039] Step 1: Adjust the alignment device 8 under the four arms of the cross-shaped frame 7 to the same height, and 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 position;

[0040] Step 2: Observe whether the lower parts of the four alignment devices 8 touch the tower base, so as to judge the level 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 on the mapping board to determine the level of the tower base surface. The structure.

[0042] In this structure, the method measures the four points of the fixed position of the tower crane, thereby ensuring the safety and rel...

Embodiment 3

[0044] Based on the level measuring device of Example 1, the liquid is composed of the following parts by weight: 6 parts of emulsified paraffin 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 leather 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, proper amount of deionization 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 the 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 foundation part; the tower body is the tower body, which is also the raised part; the jacking part is to make the tower crane can be raised; the slewing is to keep the tower crane's upper body can rotate horizontally; the lifting mechanism is used Lifting the heavy objects; the balance boom keeps the moment balance; the lifting boom is generally the force receiving part of the lifting weight; the trolley is used to install the pulley block, the steel rope and the hook, and it is also the direct stress part; The top of the tower is of course used to maintain the force balance of the boom; the cab is the place of operation; the luffing is to make the trolley run along the track. [0003] In th...

Claims

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Application Information

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IPC IPC(8): G01C9/00
CPCG01C9/00
Inventor 李燕
Owner CHENGDU 90 DEGREE IND PROD DESIGN CO LTD