Tower crane safety monitoring device

Abstract

The utility model relates to the technical field of tower cranes, in particular to a safety monitoring device for a tower crane, which comprises a first positioning ring, a second positioning ring, a pull ring seat and two detection rings, one side of the detection ring is fixedly connected with the surfaces of the first positioning ring and the second positioning ring through linkage rings, the other side of the detection ring is fixedly connected with the surfaces of the pull ring seats through linkage rings, and the opposite surfaces of the two pull ring seats are in threaded connection with adjusting pull rods. According to the rope end monitoring device, the novel rope end monitoring assembly is arranged, the first positioning ring and the second positioning ring are fixed to the rope end in a sleeving mode and attached to the lifting hook end for fixation, and load detection is conducted through stress deformation of the linkage rings and the adjusting pull rods between the first positioning ring and the second positioning ring; therefore, the accuracy of rope end load tension detection is ensured, the influence of external force such as lateral wind on the load weight of the suspension cable can be reflected, and the accuracy of monitoring and measuring data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, in particular to a safety monitoring device for tower cranes. Background Art

[0002] Tower crane safety monitoring devices are equipment used to monitor and ensure the safe operation of tower cranes. These devices usually include various sensors, monitoring systems and alarm mechanisms, designed to improve the safety and efficiency of tower crane operations. Load sensors are used to detect and monitor the load conditions of tower cranes, including load weight, load distribution and load position, which helps ensure that tower cranes operate within a safe load range.

[0003] The existing tower crane safety monitoring mainly monitors the working state of the winch motor, estimates the tower crane load workload by using the motor load and the gearbox reduction ratio, thereby ensuring that the load is within the safe load capacity, and measures the load capacity by setting a special hoisting basket and setting a weighing sensor at the bottom of the basket. This measurement method has low accuracy, and the load intensity increase effect caused by the acceleration during the tower crane operation and the vibration effect in the abnormal state of the hoisting cable cannot be effectively monitored, which poses certain safety hazards. In view of this, the existing problems are studied and improved, and a tower crane safety monitoring device is provided to solve the current problems, aiming to achieve the purpose of solving problems and improving practical value through this technology. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: a tower crane safety monitoring device, comprising: a first positioning ring, a second positioning ring, a pull ring seat and a detection ring, the number of the detection rings is two and both sides of the two detection rings are fixedly connected with linkage rings, one side of the detection ring is fixedly connected to the surfaces of the first positioning ring and the second positioning ring through the linkage ring, and the other side of the detection ring is fixedly connected to the surface of the pull ring seat through the linkage ring, the opposite surfaces of the two pull ring seats are threadedly connected with adjustment rods, a number of load sensors are provided on both sides of the detection ring and are fixedly connected to the surface of the linkage ring through the load sensors, the surface of the first positioning ring is provided with a sleeve hole for being sleeved on the surface of the suspension cable, and the surface of the first positioning ring is provided with a locking screw.

[0006] In a preferred example, the utility model can be further configured as follows: the output end of the detection ring is electrically connected to a microcontroller unit fixed to the surface of the first positioning ring and is electrically connected to an independent power supply, and the output end of the microcontroller unit is electrically connected to the tower crane control terminal via a radio signal for data transmission of the load sensor.

[0007] In a preferred example, the utility model can be further configured as follows: the microcontroller unit is used to convert the electrical signal of the load sensor into a data signal, the output end of the control terminal is electrically connected to a data recorder for data storage, and a display screen and a monitoring panel for data display, and the output end of the control terminal is electrically connected to an alarm system.

[0008] In a preferred example, the present invention can be further configured as follows: the first positioning ring and the second positioning ring have the same structure and both have surfaces provided with split gaps penetrating to the inner side of the sleeve hole.

[0009] In a preferred example, the utility model can be further configured as follows: the linkage ring is an elastic metal ring structure, and the connection points between the load sensor and the surface of the linkage ring, and the connection points between the adjustment rod and the surface of the linkage ring are arranged in an interlaced manner.

[0010] In a preferred example, the utility model can be further configured as follows: the pull ring seat, the detection ring and the linkage ring are all in two groups and are arranged symmetrically about the center line of the adjustment rod.

[0011] In a preferred example, the utility model can be further configured as follows: screw threads with opposite rotation directions are provided at both ends of the adjusting pull rod and are threadedly connected to the pull ring seats at both ends.

[0012] The beneficial effects achieved by the utility model are:

[0013] 1. In the utility model, a new type of rope end monitoring component is provided, and the first positioning ring and the second positioning ring are used to be sleeved and fixed on the rope end and fixed close to the hook end, so that the traction force of the rope end is guided between the first positioning ring and the second positioning ring, and load detection is performed through a plurality of linkage rings and the force deformation of the adjustment rod between the first positioning ring and the second positioning ring to ensure the accuracy of the rope end load tension detection, and can implement the reaction of the influence of external forces such as lateral wind on the load weight of the suspension cable, thereby improving the accuracy of the monitoring and measurement data.

[0014] 2. In the utility model, a plurality of load sensors are arranged in a circular direction, and the influence of abnormal forces such as lateral wind on the load end can be accurately sensed through the data fluctuations of each load sensor, and an alarm is issued to prompt the operator to adjust the tower crane in time to avoid the risk of collision between the load and the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of the pull ring seat and the detection ring of one embodiment of the utility model;

[0017] Figure 3This is a schematic diagram of the cross-sectional structure of the first positioning ring and the detection ring of one embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the control system structure of an embodiment of the utility model.

[0019] Reference numerals:

[0020] 1. First positioning ring; 2. Second positioning ring; 3. Pull ring seat; 4. Detection ring; 5. Linkage ring; 6. Adjustment rod; 11. Locking screw; 12. Sleeve hole; 41. Load sensor. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0022] A tower crane safety monitoring device provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0023] Combination Figure 1-4 As shown, the utility model provides a tower crane safety monitoring device, comprising: a first positioning ring 1, a second positioning ring 2, a pull ring seat 3 and a detection ring 4, the number of the detection rings 4 is two and both sides of the two detection rings 4 are fixedly connected with linkage rings 5, one side of the detection ring 4 is fixedly connected to the surfaces of the first positioning ring 1 and the second positioning ring 2 through the linkage ring 5, and the other side of the detection ring 4 is fixedly connected to the surface of the pull ring seat 3 through the linkage ring 5, the opposite surfaces of the two pull ring seats 3 are threadedly connected with adjusting rods 6, a plurality of load sensors 41 are provided on both sides of the detection ring 4 and are fixedly connected to the surface of the linkage ring 5 through the load sensors 41, the surface of the first positioning ring 1 is provided with a sleeve hole 12 for being sleeved on the surface of the suspension cable, and the surface of the first positioning ring 1 is provided with a locking screw 11.

[0024] In this embodiment, the output end of the detection ring 4 is electrically connected to a microcontroller unit fixed on the surface of the first positioning ring 1 and is electrically connected to an independent power supply. The output end of the microcontroller unit is electrically connected to the tower crane control terminal via a radio signal for data transmission of the load sensor 41.

[0025] In this embodiment, the microcontroller unit is used to convert the electrical signal of the load sensor 41 into a data signal, the output end of the control terminal is electrically connected to a data recorder for data storage, and a display screen and a monitoring panel for data display, and the output end of the control terminal is electrically connected to an alarm system.

[0026] Specifically, the data of the load sensor 41 is processed by the MCU and transmitted to the control terminal via wireless communication for display or alarm processing.

[0027] In this embodiment, the first positioning ring 1 and the second positioning ring 2 have the same structure and both have surfaces provided with split gaps penetrating to the inner side of the sleeve hole 12 .

[0028] Specifically, the cable surface is clamped and fixed by the first positioning ring 1 and the second positioning ring 2 .

[0029] In this embodiment, the linkage ring 5 is an elastic metal ring structure, and the connection points between the load sensor 41 and the surface of the linkage ring 5 and the connection points between the adjustment rod 6 and the surface of the linkage ring 5 are arranged alternately.

[0030] Specifically, the elasticity of the material of the linkage ring 5 is utilized to avoid irreversible damage to the load sensor 41 caused by the rigid pulling between the first positioning ring 1 and the second positioning ring 2 .

[0031] In this embodiment, the number of the pull ring seat 3 , the detection ring 4 and the linkage ring 5 are all two groups and they are arranged symmetrically about the center line of the adjustment rod 6 .

[0032] Furthermore, screw threads with opposite rotation directions are provided at both ends of the adjusting pull rod 6 and are threadedly connected to the pull ring seats 3 at both ends.

[0033] Specifically, the pull rod 6 can be rotated to adjust the distance between the first positioning ring 1 and the second positioning ring 2 so as to make the pull ring seats 3 at both ends move closer or farther away from each other, thereby ensuring that the suspension cable between the first positioning ring 1 and the second positioning ring 2 is in a non-tension state, thereby utilizing the second positioning ring 2 and the second positioning ring 2 to bear force.

[0034] The working principle and use process of this utility model:

[0035] like Figure 1 As shown, the monitoring device is sleeved on the surface of the suspension cable and close to the load end, and the first positioning ring 1 and the second positioning ring 2 are positioned and fixed by the locking screws 11 on the surfaces of the first positioning ring 1 and the second positioning ring 2, and the adjustment rod 6 is rotated to adjust the distance between the first positioning ring 1 and the second positioning ring 2, so that the distance is slightly smaller than the length of the suspension cable between the first positioning ring 1 and the second positioning ring 2, so that the load force on the surface of the suspension cable is transmitted through the first positioning ring 1 and the second positioning ring 2 and acts on the detection ring 4, the linkage ring 5 and the adjustment rod 6 surface, and the load weight is monitored by the deformation of a plurality of load sensors 41 and the linkage ring 5, and the detection data is shown in FIG. Figure 4 The information shown is processed by the MCU and transmitted to the control terminal via wireless communication for display or alarm processing. In the overload state, the lifting working power supply can be automatically cut off through connection with the tower crane main control system to achieve safe operation.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tower crane safety monitoring device, characterized in that: include: A first positioning ring (1), a second positioning ring (2), a pull ring seat (3) and a detection ring (4); the number of the detection rings (4) is two and both sides of the two detection rings (4) are fixedly connected with linkage rings (5); one side of the detection ring (4) is fixedly connected to the surfaces of the first positioning ring (1) and the second positioning ring (2) through the linkage ring (5), and the other side of the detection ring (4) is fixedly connected to the surface of the pull ring seat (3) through the linkage ring (5); the opposite surfaces of the two pull ring seats (3) are threadedly connected with adjustment rods (6); a plurality of load sensors (41) are provided on both sides of the detection ring (4) and are fixedly connected to the surfaces of the linkage rings (5) through the load sensors (41).

2. A tower crane safety monitoring device according to claim 1, characterized in that: The output end of the detection ring (4) is electrically connected to a microcontroller unit fixed to the surface of the first positioning ring (1) and is electrically connected to an independent power supply. The output end of the microcontroller unit is electrically connected to a tower crane control terminal via a radio signal for data transmission of a load sensor (41).

3. A tower crane safety monitoring device according to claim 2, characterized in that: The microcontroller unit is used to convert the electrical signal of the load sensor (41) into a data signal, the output end of the control terminal is electrically connected to a data recorder for data storage, and a display screen and a monitoring panel for data display, and the output end of the control terminal is electrically connected to an alarm system.

4. A tower crane safety monitoring device according to claim 1, characterized in that: The surface of the first positioning ring (1) is provided with a sleeve hole (12) for sleeve-connecting to the surface of the suspension cable, and the surface of the first positioning ring (1) is provided with a locking screw (11).

5. A tower crane safety monitoring device according to claim 4, characterized in that: The first positioning ring (1) and the second positioning ring (2) have the same structure and are both provided with a split gap on their surfaces that penetrates to the inside of the sleeve hole (12).

6. A tower crane safety monitoring device according to claim 1, characterized in that: The linkage ring (5) is an elastic metal ring structure, and the connection points between the load sensor (41) and the surface of the linkage ring (5), and the connection points between the adjustment pull rod (6) and the surface of the linkage ring (5) are arranged in a staggered manner.

7. A tower crane safety monitoring device according to claim 1, characterized in that: The pull ring seat (3), the detection ring (4) and the linkage ring (5) are each provided in two groups and are arranged symmetrically about the center line of the adjustment pull rod (6).

8. A tower crane safety monitoring device according to claim 1, characterized in that: The two ends of the adjusting pull rod (6) are provided with screw threads with opposite rotation directions and are threadedly connected to the pull ring seats (3) at the two ends.

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