CN-224230975-U - Tower body inclination monitoring device of tower crane

Abstract

The utility model discloses a tower body inclination monitoring device of a tower crane, which comprises a mounting bracket used for connecting the top of the tower body, wherein a first photoelectric distance meter and a second photoelectric distance meter are mounted on the mounting bracket, the first photoelectric distance meter and the second photoelectric distance meter are mutually and vertically arranged in a crossing manner, level bubbles are respectively mounted on the first photoelectric distance meter and the second photoelectric distance meter, when the level bubbles on the first photoelectric distance meter are centered, measuring light rays of the first photoelectric distance meter are parallel to vertical lines of the tower body, and when the level bubbles on the second photoelectric distance meter are centered, measuring light rays of the second photoelectric distance meter are parallel to a mounting surface of the tower body. The utility model can continuously monitor the tower body inclination and sedimentation value of the tower crane, and avoid the occurrence of tower body tipping accidents.

Inventors

• LI XUAN
• Li Hangrun
• Lan Zetao
• XIAO HENG

Assignees

• 中交四航局第七工程有限公司

Dates

Publication Date

20260512

Application Date

20250523

Claims (5)

1. 1. The tower body inclination monitoring device of the tower crane comprises a mounting bracket for connecting the top of the tower body and is characterized in that a first photoelectric distance meter and a second photoelectric distance meter are mounted on the mounting bracket, the first photoelectric distance meter and the second photoelectric distance meter are mounted in a mutually perpendicular and crossed mode, level bubbles are respectively mounted on the first photoelectric distance meter and the second photoelectric distance meter, when the level bubbles on the first photoelectric distance meter are centered, measuring light rays of the first photoelectric distance meter are parallel to vertical lines of the tower body, and when the level bubbles on the second photoelectric distance meter are centered, measuring light rays of the second photoelectric distance meter are parallel to a mounting surface of the tower body.
2. 2. The tower crane tower tilt monitoring device of claim 1, wherein the target of the first electro-optical distance meter is mounted at the bottom of the tower and the target of the second electro-optical distance meter is mounted at the same height of the tower as the host.
3. 3. The tower crane tower body inclination monitoring device according to claim 1, wherein the first electro-optical distance meter and the second electro-optical distance meter are infrared electro-optical distance meters capable of emitting linear laser light.
4. 4. The tower crane tower body inclination monitoring device according to claim 1, wherein the first electro-optical distance meter and the second electro-optical distance meter are hinged to the mounting bracket, and positioning mechanisms are respectively arranged between the first electro-optical distance meter and the mounting bracket and between the second electro-optical distance meter and the mounting bracket.
5. 5. The tower body inclination monitoring device of claim 1, wherein the first electro-optical distance meter and the second electro-optical distance meter are respectively connected with a control platform of the tower crane through a data transmission mechanism.

Description

Tower body inclination monitoring device of tower crane Technical Field The utility model relates to a tower crane, in particular to a tower body inclination monitoring device of a tower crane. Background The tower crane (tower crane) is called a tower crane for short, and is a relatively common mechanical device in engineering construction. The tower crane is a rotary crane with a boom mounted on the upper part of a towering tower body. In the working process of the tower crane, once the verticality, the sedimentation value and the horizontal displacement of the tower body exceed the allowable range, the gravity center of the tower crane can be shifted, and the risk of tipping the tower crane is increased. The electro-optical distance meter is also called as light velocity distance meter, which is an instrument for precisely measuring distance by using modulated light waves, and the measuring distance can reach about 2.5 km, and can also be used for night operation. The principle of electro-optical distance measurement is that when measuring the distance between two points, a distance meter is arranged at one point to be measured, and a reflector is arranged at the other point. When the range finder emits light to the reflector, the light returns to the instrument after being reflected by the reflector. Let the speed of light c be known, if the time t for the beam to travel back and forth over the distance to be measured is also known, the distance D can be determined from the formula d=ct/2. The short-range infrared photoelectric distance measuring instrument has the maximum measuring range of 2500m, the distance measuring precision of (+/-) (3mm+2×10-6×D) (where D is the measured distance), the minimum reading of 1mm, the automatic light intensity regulating device is set to regulate light intensity manually during measurement in complex environment, the result can be corrected automatically by inputting temperature, air pressure and prism constant, the horizontal distance and height difference can be calculated automatically by inputting vertical angle, the line setting and lofting can be performed by presetting distance, and if the coordinate and height of the measuring station are input, the coordinate and height of the observation point can be calculated automatically. The distance measurement mode comprises normal measurement and tracking measurement, wherein the time required by the normal measurement is 3s, the average value of the measurement can be displayed, the time required by the tracking measurement is 0.8s, and the distance measurement is automatically repeated at regular time intervals. Disclosure of utility model The utility model aims to solve the technical problem that the tower body inclination monitoring device of the tower crane can monitor the tower body inclination of the tower crane in order to avoid the risk of tilting of the tower crane caused by the tower body inclination of the tower crane. In order to solve the technical problems, the utility model adopts the following technical scheme: The utility model provides a tower crane body tilt monitoring devices, includes the installing support that is used for connecting the body top, install first photoelectric distance meter and second photoelectric distance meter on the installing support, first photoelectric distance meter with second photoelectric distance meter mutually perpendicular cross mounting, just first photoelectric distance meter with install the level bubble on the second photoelectric distance meter respectively, when the level bubble on the first photoelectric distance meter is placed in the middle, the measuring ray and the body perpendicular line of first photoelectric distance meter are parallel, when the level bubble on the second photoelectric distance meter is placed in the middle, the measuring ray and the body installation face of second photoelectric distance meter are parallel. Further, the target of the first electro-optical distance meter is installed at the bottom of the tower body, and the target of the second electro-optical distance meter and the host are installed at the same height of the tower body. Further, the first electro-optical distance meter and the second electro-optical distance meter are infrared electro-optical distance meters capable of emitting linear laser. Further, the first electro-optical distance meter and the second electro-optical distance meter are hinged to the mounting bracket, and positioning mechanisms are respectively arranged between the first electro-optical distance meter and the mounting bracket and between the second electro-optical distance meter and the mounting bracket. Further, the first electro-optical distance meter and the second electro-optical distance meter are respectively connected with a control platform of the tower crane through a data transmission mechanism. Compared with the prior art, the utility model has the beneficial effects that: 1) Accordin