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Device for monitoring looseness of tower body bolt of tower crane

A technology of bolt loosening and tower body, applied in the field of building construction, can solve the problems of cumbersome inspection and high inspection cost, and achieve the effect of reducing costs

Pending Publication Date: 2020-04-24
浙江省三建建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing inspections require professionals to use specialized instruments, which is cumbersome and expensive

Method used

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  • Device for monitoring looseness of tower body bolt of tower crane
  • Device for monitoring looseness of tower body bolt of tower crane
  • Device for monitoring looseness of tower body bolt of tower crane

Examples

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Embodiment Construction

[0023] See attached picture. This embodiment includes a first bracket 1 and a second bracket 2, which are respectively fixed on the tower body bolts 3 and the tower body nuts 4. The first bracket 1 is composed of an arc-shaped bottom plate 11 and a fixing ring 12. An arc-shaped magnet is provided, and the arc-shaped magnet is covered with a plastic shell, with an arc diameter of 34.6mm, a height of 50mm, and a thickness of 5mm; The first bracket 1 is fixed on the bolt rod of the tower body bolt 3 through an arc-shaped magnet, and the arc-shaped bottom plate 11 fits the circumference of the bolt rod.

[0024] The second bracket 2 is an L-shaped structure with a side length of 35mm and a thickness of 5mm, and has a bottom surface 21 and a right side surface 22 perpendicular to each other. The right side 22 of the two brackets is provided with a through hole 23 with a diameter of 2.6 mm, the distance from the bottom of the right side is 8.4 mm, and the distance from the bottom i...

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Abstract

The invention discloses a device for monitoring looseness of a tower body bolt of a tower crane. The device comprises a first support and a second support which are fixed to a tower body bolt and a tower body nut respectively, and further comprises a pointer. A fixing ring is arranged on the outer side of the first support, the pointer is placed on the fixing ring, the head of the pointer is located above the fixing ring, and the tail of the pointer penetrates through the fixing ring and is perpendicularly arranged on the second support; and a displacement sensor is installed on the second support and connected with an alarm. The tail part of the pointer is sleeved with a metal detection ring, and the metal detection ring and the displacement sensor are opposite in position and cooperate with each other. The pointer is placed between the tower body bolt and the tower body nut, looseness of the tower body bolt is reflected through movement and deflection of the pointer, movement of thepointer is detected through a displacement sensor, and an alarm sound is given out, so that it is guaranteed that the tower body bolt is kept in a fastened state.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a device for monitoring the looseness of bolts in a tower crane body. Background technique [0002] Tower crane is the most commonly used lifting equipment on construction sites, also known as "tower crane". , concrete, steel pipe and other construction raw materials. Tower crane is an indispensable equipment on the construction site. The sections of the tower crane are fixedly connected by tower bolts, and the tower bolts will loosen during use. It may be due to mechanical movement, the bolt is not loose enough to cause loosening; it may also be due to human factors, and it is not tightened due to negligence. When the tower body bolts are loose, when the tower crane is in use, there will be a gap on the flange surface of the adjacent standard section, and the shear force caused by the torque of the tower body directly acts on the bolt rod, and there ...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01B21/02G08B21/24G08B3/10
CPCG01B21/02G01M13/00G08B3/10G08B21/24
Inventor 徐丙丁张纯为何雄伟许峰张维炎周一鸿余杰竺超迪徐云飞
Owner 浙江省三建建设集团有限公司
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