CN216403656U

CN216403656U - Balance maintaining device of tower crane

Info

Publication number: CN216403656U
Application number: CN202122685589.1U
Authority: CN
Inventors: 张田
Original assignee: Guangdong Zhongjian Heavy Equipment Leasing Co ltd
Current assignee: Guangdong Zhongjian Heavy Equipment Leasing Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-04-29
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a balance maintaining device of a tower crane, which relates to the field of tower cranes and comprises a counterweight arm, wherein an adjusting box is installed at the upper part of the counterweight arm, a motor is arranged in the adjusting box, the output end of the motor is connected with a toothed belt, two ends of the toothed belt are connected with a screw rod I and a screw rod II, the screw rod I and the screw rod II are connected with ejector rods, the upper end of each ejector rod is connected with a balance rod, two ends of each balance rod are connected with the counterweight box, the bottom of the adjusting box is provided with an inclination angle sensor and a control box, and an inclination angle monitoring module, a control module and a remote communication module are arranged in the control box. The utility model is provided with a plurality of groups of inclination angle sensors, monitors the transverse inclination angle of the tower crane in real time, arranges the counterweight lever at the counterweight arm, drives the two groups of ejector rods to rise and fall through the motor, generates upward or downward force at the two sides of the counterweight arm, and is used for balancing the oblique force generated when the crane boom lifts a heavy object to start rotating, thereby playing the role of maintaining the transverse balance of the tower crane and ensuring the normal construction of a construction site.

Description

Balance maintaining device of tower crane

Technical Field

The utility model relates to the field of tower cranes, in particular to a balance maintaining device of a tower crane.

Background

The tower crane is a rotary crane with a movable arm mounted on the upper part of a high tower body, is mainly used for vertical and horizontal conveying of materials and installation of building components in house building construction, and consists of three parts, namely a metal structure, a working mechanism and an electrical system.

The existing tower crane can only maintain the balance in the direction of a lifting arm when lifting heavy objects, when the lifting arm rotates, a sling rope drives goods to move by taking a rotating shaft as a circle center, transverse pulling force can be generated on the tower crane when the tower crane is started and stopped, the balance of the tower crane is seriously influenced, and when the heavy objects are lifted, the tower crane is suddenly stopped or suddenly started in the rotating process of the lifting arm, so that the dumping accident of the tower crane easily occurs.

Disclosure of Invention

Based on the above, the utility model aims to provide a balance maintaining device of a tower crane, which is used for solving the technical problems that the existing tower crane can only perform balance maintenance in the direction of a crane boom when lifting heavy objects, when the crane boom rotates, a sling rope drives goods to move around a rotating shaft, transverse pulling force is generated on the tower crane when the crane is started and stopped, the balance of the tower crane is seriously influenced, and when the crane boom lifts heavy objects, the crane boom is suddenly stopped or started in the rotating process, and the tower crane easily topples over.

In order to achieve the purpose, the utility model provides the following technical scheme: a balance maintaining device of a tower crane comprises a counterweight arm, the upper part of the counterweight arm is provided with an adjusting box, a motor is arranged at the center inside the adjusting box, the output end of the motor is connected with a toothed belt, two ends of the toothed belt are connected with a screw rod I and a screw rod II, the first screw rod and the second screw rod are connected with ejector rods, the ejector rods upwards penetrate through the adjusting box and are connected with balancing rod moving pieces through ejector rod rotating shafts, a fixed column is arranged at the center of the upper end of the counterweight arm, the top end of the fixed column is rotationally connected with a balancing pole through a balancing pole rotating shaft, the moving piece chutes arranged on the two sides of the balancing rod are connected with the moving pieces of the balancing rod in a sliding way, the two ends of the balancing rod are rotationally connected with the weight box, the bottom of the adjusting box is provided with a plurality of groups of inclination angle sensors and a control box, and an inclination angle monitoring module, a control module and a remote communication module are arranged in the control box.

By adopting the technical scheme, a plurality of groups of inclination angle sensors are installed, the transverse inclination angle of the tower crane is monitored in real time, the counterweight lever is arranged at the counterweight arm, the motor drives the two groups of ejector rods to rise and fall, upward or downward force is generated on two sides of the counterweight arm so as to balance the oblique force generated when the crane boom lifts a heavy object to start rotating, the effect of maintaining the transverse balance of the tower crane is achieved, and the normal construction of a construction site is ensured.

The utility model is further provided that the screw threads of the first screw and the second screw are opposite to each other, the bottom ends of the first screw and the second screw are provided with gears meshed with the toothed belts, and the first screw and the second screw extend downwards to be connected with a frame structure of the counterweight arm.

By adopting the technical scheme, the gear at the lower ends of the first screw rod and the second screw rod is driven by the toothed belt, so that the first screw rod and the second screw rod can rotate in the same direction, and the first screw rod and the second screw rod are connected with the frame structure of the counterweight arm, so that the ejector rod can ascend and descend to adjust the inclination angle of the counterweight arm.

The utility model is further set up in that two ends of the balance rod are rotationally connected with the weight box through a weight box rotating shaft, and weight plates which can be increased and decreased at will are arranged in the weight box.

Through adopting above-mentioned technical scheme, the goods of handling on the building site is lighter then need not overweight weight box, reduces the counter weight piece and can practice thrift the electric energy.

The utility model is further arranged in that the control module can control the motor, the inclination angle monitoring module can monitor the inclination angle of the tower crane through the inclination angle sensor, and the remote communication module is connected with the cab.

By adopting the technical scheme, the aim of automatically adjusting the inclination angle of the tower crane is fulfilled by the mutual connection of the modules and the equipment.

In summary, the utility model mainly has the following beneficial effects:

according to the utility model, the transverse inclination angle of the tower crane is monitored in real time by installing a plurality of groups of inclination angle sensors, the counterweight lever is arranged at the counterweight arm, and the motor drives the two groups of ejector rods to rise and fall, so that upward or downward force is generated at two sides of the counterweight arm to balance the oblique force generated when the crane boom lifts a heavy object to start rotating, thereby maintaining the transverse balance of the tower crane and ensuring the normal construction of a construction site.

Drawings

FIG. 1 is a front interior view of the present invention;

FIG. 2 is an enlarged view of A of FIG. 1 in accordance with the present invention;

fig. 3 is a front view of the present invention.

In the figure: 1. a counterweight arm; 2. an adjusting box; 3. a motor; 4. a toothed belt; 5. a first screw rod; 6. a second screw; 7. a top rod; 8. a rotating shaft of the mandril; 9. moving the balancing rod; 10. a slide moving chute; 11. fixing a column; 12. a balance bar shaft; 13. a balancing pole; 14. a weight box rotating shaft; 15. a weight box; 16. a weight plate; 17. a control box; 18. a tilt angle monitoring module; 19. a control module; 20. a remote communication module; 21. an inclination angle sensor.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

A balance maintaining device of a tower crane is disclosed, as shown in figures 1-3, comprising a balance arm 1, an adjusting box 2 is installed on the upper portion of the balance arm 1, a motor 3 is arranged at the center inside the adjusting box 2, the output end of the motor 3 is connected with a toothed belt 4, two ends of the toothed belt 4 are connected with a screw rod I5 and a screw rod II 6, a mandril 7 is connected on the screw rod I5 and the screw rod II 6, the mandril on the screw rod I5 and the screw rod II 6 can move up and down through the rotation of the motor 3, the mandril 7 upwards passes through the adjusting box 2 and is connected with a balance rod moving piece 9 through a mandril rotating shaft 8, a fixed column 11 is arranged at the center of the upper end of the balance arm 1, the top end of the fixed column 11 is rotatably connected with a balance rod 13 through a balance rod rotating shaft 12, a balance rod moving piece sliding chute 10 arranged at two sides of the balance rod 13 is slidably connected with the balance rod moving piece 9, when the balance rod 13 inclines, the balance rod moving piece 9 can slide in the balance rod moving piece sliding chute 10, the two ends of the balance rod 13 are rotatably connected with a weight box 15, the balance weight of the weight box 15 can be adjusted according to actual use conditions, the bottom of the adjusting box 2 is provided with a plurality of groups of inclination angle sensors 21 and a control box 17, and an inclination angle monitoring module 18, a control module 19 and a remote communication module 20 are arranged in the control box 17.

Referring to fig. 1, the screw threads of the first screw 5 and the second screw 6 are opposite to each other, the bottom ends of the first screw 5 and the second screw 6 are provided with gears engaged with the toothed belt 4, the first screw 5 and the second screw 6 extend downwards to be connected with the frame structure of the counterweight arm 1, the toothed belt 4 drives the gears at the lower ends of the first screw 5 and the second screw 6 to enable the first screw 5 and the second screw 6 to rotate in the same direction, and the first screw 5 and the second screw 6 are connected with the frame structure of the counterweight arm 1 to enable the lift and the fall of the ejector rod 7 to adjust the inclination angle of the counterweight arm.

Referring to fig. 1 and 3, two ends of the balance bar 13 are rotatably connected to the weight box 15 through the weight box rotating shaft 14, and the weight box 15 is internally provided with weight plates 16 which can be increased or decreased at will, so that the weight box 15 which is too heavy is not needed if the goods lifted on the construction site are lighter, and the electric energy can be saved by reducing the weight plates 16.

Referring to fig. 1 and 2, the control module 19 can control the motor 3, the tilt angle monitoring module 18 can monitor the tilt angle of the tower crane through the tilt angle sensor 21, the remote communication module 20 is connected with the cab, and the purpose of automatically adjusting the tilt angle of the tower crane is achieved through the connection of the modules and the equipment.

The working principle of the utility model is as follows: when the tower crane starts to rotate or stops rotating, the cargo boom is hung by the cargo boom to generate an oblique force to enable the tower crane to incline to one side, after the cargo boom inclines, the counterweight arm 1 connected with the cargo boom also inclines, at the moment, the inclination angle sensor 21 detects that the counterweight arm 1 inclines, inclination information is sent to the inclination angle monitoring module 18 in the control box 17, the inclination angle monitoring module 18 transmits the information to the control module 19, the control module 19 enables the motor 3 to rotate in a inching mode according to a set inching program, the motor 3 rotates to drive the toothed belt 4 to rotate, the toothed belt 4 rotates to enable the screw rod I5 and the screw rod II 6 with gears at the bottom to rotate, as the threads of the screw rod I5 and the screw rod II 6 are opposite, the two groups of ejector rods 7 can move in opposite directions, the ejector rods 7 can ascend, the balance rod moving piece 9 rotationally connected with the ejector rod rotating shaft 8 can also ascend, the balance rod 13 is inclined, the balance rod moving piece 9 can slide in the moving piece sliding groove 10 while the balance rod 13 is inclined, the ejector rod 7 is ensured to be in a vertical state all the time, when the crane boom rotates to the left side, the tower crane can incline to the right side under the pulling force of a sling, at the moment, the motor 3 is inching to enable the ejector rod 7 of the screw rod I5 to ascend, the ejector rod of the screw rod II 6 to descend, downward force is applied to the left side of the balance arm 1 through a connecting structure of the screw rod I5 and the bottom end of the screw rod II 6 to balance the transverse inclination generated when the crane boom starts to rotate, when the crane boom stops rotating, the ejector rod 7 at the screw rod II 6 is ascended to balance the transverse inclination of the tower crane, and the balance rod 13 can be in a horizontal state after one-time hoisting is finished, guarantee the normal clear of hoist and mount next time, control module 19 in the control box 17 is used for controlling motor 3, remote communication module 20 wherein can make the driver according to the weight of hoisting the goods, remote modification motor 3's inching frequency and the rotation time of inching at every turn, prevent that the goods is overweight, the inching mode governing speed of original setting is slow enough to adjust in time to produce danger inadequately, the counter weight piece 16 in the weight box 15 at balancing pole 13 both ends also can be according to the required type increase or the reduction of transporting goods and materials of construction site, avoid the waste of electric energy.

Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.

Claims

1. A balance maintaining device of a tower crane comprises a counterweight arm (1), and is characterized in that: the upper portion of the balance arm (1) is provided with an adjusting box (2), the center inside the adjusting box (2) is provided with a motor (3), the output end of the motor (3) is connected with a toothed belt (4), two ends of the toothed belt (4) are connected with a screw rod I (5) and a screw rod II (6), the screw rod I (5) and the screw rod II (6) are connected with a push rod (7), the push rod (7) upwards penetrates through the adjusting box (2) and is connected with a balance rod moving piece (9) through a push rod rotating shaft (8), the center of the upper end of the balance arm (1) is provided with a fixed column (11), the top end of the fixed column (11) is rotatably connected with a balance rod (13) through a balance rod rotating shaft (12), moving piece chutes (10) arranged on two sides of the balance rod (13) are slidably connected with the balance rod moving piece (9), two ends of the balance rod (13) are rotatably connected with a balance box (15), the bottom of the adjusting box (2) is provided with a plurality of groups of inclination sensors (21) and a control box (17), and an inclination monitoring module (18), a control module (19) and a remote communication module (20) are arranged in the control box (17).

2. The balance maintaining apparatus of a tower crane according to claim 1, wherein: the screw threads of the first screw rod (5) and the second screw rod (6) are opposite to each other, the bottom ends of the first screw rod (5) and the second screw rod (6) are provided with gears meshed with the toothed belt (4), and the first screw rod (5) and the second screw rod (6) extend downwards to be connected with a frame structure of the counterweight arm (1).

3. The balance maintaining apparatus of a tower crane according to claim 1, wherein: the two ends of the balance rod (13) are rotatably connected with the weight box (15) through weight box rotating shafts (14), and weight plates (16) which can be increased and decreased at will are arranged in the weight box (15).

4. The balance maintaining apparatus of a tower crane according to claim 1, wherein: the control module (19) can control the motor (3), the inclination angle monitoring module (18) can monitor the inclination angle of the tower crane through an inclination angle sensor (21), and the remote communication module (20) is connected with the cab.