A crane drum system with adaptive laser limiters

Abstract

This utility model discloses a crane drum system with an adaptive laser limit device, comprising: a lifting rope sleeved on the outer wall of the lifting drum; two connecting discs and two bearing seats installed at both ends of the lifting drum; the two connecting discs positioned between the two bearing seats; a laser photoelectric switch and a photoelectric receiver installed at both ends of the outer wall of the lifting drum; the laser photoelectric switch and the photoelectric receiver positioned between the connecting discs; and the laser photoelectric switch and the photoelectric receiver positioned opposite each other. By applying this utility model, a crane drum system with an adaptive laser limit device is provided. The use of a laser photoelectric switch eliminates the need for physical limit switches, providing high precision and sensitivity. It can accurately monitor the position and movement of the lifting rope, thereby promptly detecting rope skipping or abnormal situations. Furthermore, the housing prevents the lifting rope from breaking off during rope skipping.

Description

Technical Field

[0001] This utility model relates to the technical field of cranes and related fields, and in particular to a crane drum system with an adaptive laser limiting device. Background Technology

[0002] The development of anti-slip rope technology for cranes stems primarily from safety and reliability concerns during crane operation. In crane operation, if a lifted object suddenly jumps, it can lead to serious accidents, endangering personnel safety and equipment integrity. Therefore, preventing crane ropes from jumping is crucial.

[0003] In traditional crane systems, physical limit devices are typically used to prevent the lifting rope from jumping. These physical limit devices may include mechanical devices such as limit switches and cam mechanisms. Their principle is that when the rope jumps and reaches a certain position, the limit device is triggered, forcing the crane to stop moving and preventing rope jumping or other accidents. However, these physical limit devices require regular maintenance and adjustment, and there is a risk of misoperation. Utility Model Content

[0004] In view of this, and to solve the above problems, the purpose of this utility model is to provide a crane drum system with an adaptive laser limiting device, comprising:

[0005] Hoisting drum, lifting rope, laser photoelectric switch, photoelectric receiver, two connecting discs and two bearing seats;

[0006] The lifting rope is sleeved on the outer wall of the lifting drum, and the two connecting discs and the two bearing seats are installed at both ends of the lifting drum, with the two connecting discs disposed between the two bearing seats;

[0007] The laser photoelectric switch and the photoelectric receiver are installed at both ends of the outer wall of the hoisting drum, and are disposed between the connecting discs, with the laser photoelectric switch and the photoelectric receiver being disposed opposite to each other.

[0008] The lifting drum includes a drum shaft, a rope reel, and a housing. The rope reel is sleeved on the outer wall of the drum shaft, and a drum groove is formed on the outer wall of the rope reel. The lifting rope is sleeved in the drum groove. The laser photoelectric switch and the photoelectric receiver are installed at both ends of the outer wall of the rope reel. One surface of each of the two connecting discs is installed at both ends of the rope reel. Two bearing seats are installed at both ends of the drum shaft. The two ends of the housing are rotatably installed on the outer walls of the two bearing seats. The housing covers the rope reel.

[0009] In the crane drum system of the aforementioned adaptive laser limiting device, the housing has a semi-circular cross-section along the radial direction of the drum shaft.

[0010] In the crane drum system of the aforementioned adaptive laser limiting device, the winding wheel and the two connecting discs are integrally formed.

[0011] In the crane drum system of the aforementioned adaptive laser limiting device, the laser photoelectric switch and the photoelectric receiver are welded to both ends of the outer wall of the winding wheel.

[0012] The crane drum system of the aforementioned adaptive laser limiting device further includes: two fixing bolts; an installation hole is provided on the outer wall at both ends of the housing; two bolt grooves are provided on the outer wall of the two bearing seats; and one end of each fixing bolt passes through a corresponding installation hole and is installed in a bolt groove.

[0013] The positive effects of the above technical solution compared with the existing technology are:

[0014] By applying this utility model, a crane drum system with an adaptive laser limit device is provided. By setting a laser photoelectric switch, the detection method of physical limit switches is eliminated. The detection is performed by laser photoelectric switches, which have high precision and high sensitivity. They can accurately monitor the position and movement status of the lifting rope, thereby timely detecting rope skipping or abnormal situations. Moreover, the shell prevents the lifting rope from breaking off when the rope skips. Attached Figure Description

[0015] Figure 1 This is a partial perspective view of a crane drum system of an adaptive laser limiting device according to this utility model;

[0016] Figure 2 This is a rear view of a crane drum system according to the present invention, which is an adaptive laser limiting device.

[0017] Figure 3 This is a top view of a crane drum system of an adaptive laser limiting device according to this utility model.

[0018] 1. Lifting drum; 2. Lifting rope; 3. Laser photoelectric switch; 4. Drum shaft; 5. Rope reel; 6. Connecting disc; 7. Bearing housing; 8. Housing. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0020] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0021] like Figures 1 to 3 As shown, a crane drum system of an adaptive laser limiting device according to a preferred embodiment includes: a lifting drum 1, a lifting rope 2, a laser photoelectric switch 3, a photoelectric receiver, two connecting discs 6, and two bearing seats 7.

[0022] The lifting rope 2 is sleeved on the outer wall of the lifting drum 1. Two connecting discs 6 and two bearing seats 7 are installed at both ends of the lifting drum 1. The two connecting discs 6 are located between the two bearing seats 7. The laser photoelectric switch 3 and the photoelectric receiver are installed at both ends of the outer wall of the lifting drum 1. The laser photoelectric switch 3 and the photoelectric receiver are located between the connecting discs 6. The laser photoelectric switch 3 and the photoelectric receiver are arranged opposite to each other. The lifting drum 1 includes: a drum shaft 4, a rope winding wheel 5, and a housing 8. The rope winding wheel 5 is sleeved on the outer wall of the drum shaft 4. The outer wall of the rope winding wheel 5 has a drum groove. The lifting rope 2 is sleeved in the drum groove. The laser photoelectric switch 3 and the photoelectric receiver are installed at both ends of the outer wall of the rope winding wheel 5. One surface of the two connecting discs 6 is installed at both ends of the rope winding wheel 5. The two bearing seats 7 are installed at both ends of the drum shaft 4. The two ends of the housing 8 are rotatably installed on the outer wall of the two bearing seats 7. The housing 8 covers the rope winding wheel 5.

[0023] In practical use, by setting laser photoelectric switches 3 and photoelectric receivers at both ends of the rope reel 5, the laser emitted by the laser photoelectric switch 3 can be received by the corresponding photoelectric receiver, which is connected to the automated control system of the external crane. The hoisting drum 1 is installed at a corresponding position on the crane, and the drum shaft 4 is connected to a motor installed on the crane. The motor is connected to the crane's automated control system, driving the drum shaft 4 to rotate, which in turn drives the rope reel 5 to rotate, thus achieving hoisting and lifting operations.

[0024] By placing the laser photoelectric switch 3 on the rope reel 5, there is no need for direct contact between the laser photoelectric switch 3 and the lifting rope 2. Instead, remote monitoring is performed through laser signals, which will not cause additional friction or damage to the lifting rope 2 and will help extend the service life of the rope.

[0025] In use, the laser photoelectric switch 3 and the photoelectric receiver are installed at both ends of the rope reel 5. When rope jumping occurs, the stacked rope will block the signal of the photoelectric receiver, thereby determining whether the cable is jumping. At the same time, the housing 8 prevents the lifting rope 2 from breaking off when rope jumping, making it safer.

[0026] Based on the above, this utility model also has the following embodiments:

[0027] Furthermore, a crane drum system with an adaptive laser limiting device, wherein the housing 8 has a semi-circular cross-section along the radial direction of the drum shaft 4.

[0028] Furthermore, in a crane drum system with an adaptive laser limiting device, the winding sheave 5 and the two connecting discs 6 are integrally formed. Furthermore, the integral formation of the winding sheave 5 and the two connecting discs 6 provides greater stability.

[0029] Furthermore, a crane drum system with an adaptive laser limiting device is provided, wherein a laser photoelectric switch 3 and a photoelectric receiver are welded to both ends of the outer wall of the rope reel 5. Further, it also includes two protective covers, welded to both ends of the outer wall of the rope reel 5, which cover the laser photoelectric switch 3 and the photoelectric receiver to prevent the lifting rope 2 from breaking and damaging the laser photoelectric switch 3 and the photoelectric receiver during rope jumping.

[0030] Furthermore, a crane drum system with an adaptive laser limiting device further includes: two fixing bolts; mounting holes are formed on the outer walls at both ends of the housing 8; and two bolt grooves are formed on the outer walls of the two bearing seats 7. One end of each fixing bolt passes through a corresponding mounting hole and is installed in a bolt groove. Further, before the hoisting drum 1 operates, the housing 8 is first placed over the winding sheave 5, and then one end of each fixing bolt passes through a corresponding mounting hole and is installed in a bolt groove, thereby fixing the housing 8 to the bearing seat 7.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crane drum system with an adaptive laser limiting device, characterized in that, include: Hoisting drum, lifting rope, laser photoelectric switch, photoelectric receiver, two connecting discs and two bearing seats; The lifting rope is sleeved on the outer wall of the lifting drum, and the two connecting discs and the two bearing seats are installed at both ends of the lifting drum, with the two connecting discs disposed between the two bearing seats; The laser photoelectric switch and the photoelectric receiver are installed at both ends of the outer wall of the hoisting drum, and are disposed between the connecting discs, with the laser photoelectric switch and the photoelectric receiver being disposed opposite to each other. The lifting drum includes a drum shaft, a rope reel, and a housing. The rope reel is sleeved on the outer wall of the drum shaft, and a drum groove is formed on the outer wall of the rope reel. The lifting rope is sleeved in the drum groove. The laser photoelectric switch and the photoelectric receiver are installed at both ends of the outer wall of the rope reel. One surface of each of the two connecting discs is installed at both ends of the rope reel. Two bearing seats are installed at both ends of the drum shaft. The two ends of the housing are rotatably installed on the outer walls of the two bearing seats. The housing covers the rope reel.

2. The crane drum system of the adaptive laser limiting device according to claim 1, characterized in that, The housing has a semi-circular cross-section along the radial direction of the drum shaft.

3. The crane drum system of the adaptive laser limiting device according to claim 1, characterized in that, The rope reel and the two connecting discs are integrated into one unit.

4. The crane drum system of the adaptive laser limiting device according to claim 1, characterized in that, The laser photoelectric switch and the photoelectric receiver are welded to both ends of the outer wall of the rope reel.

5. A crane drum system with an adaptive laser limiting device according to claim 1, characterized in that, Also includes: Two fixing bolts are provided. The outer walls at both ends of the housing have a mounting hole. The outer walls of the two bearing seats have two bolt grooves. One end of each fixing bolt passes through the corresponding mounting hole and is installed in the bolt groove.

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