Automatic early warning and maintenance structure for steel wire rope and stacking machine

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By installing detection components and lubrication components on the stacker, using magnets and sensors to detect wire rope damage, and automatically applying lubricating oil through oil pumps and brushes, the problem of difficult wire rope damage is solved, automatic warning and maintenance is achieved, and service life is extended and safety risks are reduced.

CN223060641UActive Publication Date: 2025-07-04ROBO TECHAUTOMATION SUZHOU CO LTD

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Patent Information

Application Number: CN202422335431.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-09-25
Publication Date: 2025-07-04
Estimated Expiration: 2034-09-25

AI Technical Summary

Technical Problem

The existing stacker wire ropes are difficult to detect in time when wires and strands are broken, resulting in safety hazards and short service life. Maintenance depends on manpower, and the cycle is uncertain, which affects safety and efficiency.

Method used

The detection component is used to detect damage to the wire rope through magnets and sensors, and combine the lubricating component to automatically apply lubricating oil to achieve automatic early warning and maintenance, including lifting components, detection components and lubricating components. The magnets and sensors are used to dynamically monitor the wire rope status, and the lubricating oil is automatically applied through the oil pump and brush.

Benefits of technology

It realizes automatic early warning and maintenance of wire ropes, dynamic monitoring of wire rope status, no need for shutdown inspection, extends service life, reduces high-altitude maintenance risks, and improves safety and efficiency.

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Abstract

The automatic early warning and maintaining structure comprises a lifting assembly, a detecting assembly and a lubricating assembly, the lifting assembly comprises a lifting frame and the steel wire rope, a winch is arranged on the lifting frame, a fixed pulley is arranged at the top of the lifting frame, and the steel wire rope is connected with the winch and the fixed pulley; the detection assembly comprises at least one pair of magnetizers and sensors which are coaxially arranged, the magnetizers and the sensors are arranged on the lifting frame, and the magnetizers are electrically connected with the sensors; the steel wire rope penetrates through the magnetizer and the sensor; the lubricating assembly comprises a first oil pump, a second oil pump, a first brush and a second brush, the first brush is arranged close to the winch, the second brush is arranged on the lifting frame, and the first brush and the second brush abut against the steel wire rope; the first oil pump is connected with the first brush; the second oil pump is connected with the second brush. According to the utility model, dynamic monitoring and timely feedback are realized through the detection assembly. The lubricating assembly can regularly smear lubricating oil on the steel wire rope to prolong the service life of the steel wire rope.

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Description

Technical Field

[0001] The utility model relates to the technical field of unmanned warehouses, in particular to an automatic warning and maintenance structure for steel wire ropes and a stacker crane. Background Art

[0002] As an indispensable device in an unmanned warehouse, a stacker crane can transport goods in the warehouse to any position. During the lifting process of the stacker crane, the steel wire rope is the main connecting component for lifting. After long-term operation, the steel wire rope becomes fatigued, and early wire breakage and strand breakage will occur to varying degrees, directly affecting the safe operation of the stacker crane and posing a great safety hazard. Detecting the damage of the steel wire rope as early as possible can replace the steel wire rope as early as possible to ensure safe operation.

[0003] At present, the protection function design of the stacker crane in terms of wire rope breakage and slack has defects, and there is no detection and protection function for wire breakage and strand breakage. When wire breakage and strand breakage occur, they cannot be detected in time. Only during regular maintenance can they be discovered. Before discovery, the stacker crane is still running, which will pose a great safety risk. In addition, the regular maintenance of the steel wire rope basically relies entirely on manual labor, which is time-consuming and laborious. The maintenance cycle depends entirely on manual intervention, is irregular and unquantified, and is affected by operating conditions, which is likely to reduce the service life of the steel wire rope and cause the above-mentioned wire breakage and strand breakage phenomena to occur prematurely. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the present utility model is to overcome the defect in the prior art that it is difficult to detect wire breakage and strand breakage of the steel wire rope of the stacker crane in time, resulting in a short service life of the steel wire rope.

[0005] To solve the above technical problems, the present utility model provides an automatic warning and maintenance structure for a steel wire rope, including:

[0006] A lifting assembly, the lifting assembly includes a lifting frame and a steel wire rope. A hoist is provided on the side wall of the lifting frame, and a set of fixed pulleys is provided on the top of the lifting frame. The steel wire rope connects the hoist and the fixed pulleys;

[0007] A detection assembly, the detection assembly includes at least a pair of coaxially arranged magnetized bodies and sensors. The magnetized bodies and sensors are arranged on the lifting frame, and the magnetized bodies are electrically connected to the sensors; the steel wire rope passes through the magnetized bodies and sensors;

[0008] Lubrication assembly, the lubrication assembly includes a first oil pump, a second oil pump, a pair of first brushes and a pair of second brushes. The pair of first brushes is arranged along the axial direction of the drum of the winch. The pair of second brushes is arranged on the lifting frame. The first brushes and the second brushes are in contact with the steel wire rope. The first oil pump is connected to the first brushes. The second oil pump is connected to the second brushes. The sensor is electrically connected to the first oil pump and the second oil pump.

[0009] In an embodiment of the present invention, the detection assembly further includes a control module, and the control module is electrically connected to the sensor, the first oil pump and the second oil pump respectively.

[0010] In an embodiment of the present invention, the first oil pump and the first brushes, and the second oil pump and the second brushes are connected by flexible oil pipes.

[0011] In an embodiment of the present invention, the magnetizing body and the sensor are arranged at one end of the lifting frame close to the fixed pulley.

[0012] In an embodiment of the present invention, the second brushes are arranged on one side of the lifting frame close to the sensor.

[0013] In an embodiment of the present invention, a first support frame is arranged on the winch, and the first brushes are arranged on the first support frame.

[0014] In an embodiment of the present invention, a second support frame is arranged on the lifting frame, and the second brushes are connected to the second support frame.

[0015] In an embodiment of the present invention, the lifting assembly further includes a lifting trolley. The lifting trolley slides up and down along the lifting frame. One end of the steel wire rope is connected to the lifting trolley, and the other end of the steel wire rope bypasses the fixed pulley and is connected to the drum of the winch.

[0016] A stacker includes the automatic warning and maintenance structure of the steel wire rope described above.

[0017] The above technical solution of the present invention has the following advantages compared with the prior art:

[0018] For the automatic warning and maintenance structure of the steel wire rope and the stacker of the present invention, the detection of the lifting part of the steel wire rope is realized through the detection assembly, and dynamic monitoring and timely feedback are carried out. The life cycle detection of the steel wire rope can be achieved without stopping the machine for inspection. Secondly, through the lubrication assembly, the lubrication of the entire steel wire rope can be covered, and the steel wire rope can be regularly smeared with lubricating oil. It is safe and reliable, can reduce the risk of high-altitude maintenance of personnel, and can also extend the service life of the steel wire rope. Description of the Drawings

[0019] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments of the present utility model and in conjunction with the accompanying drawings, wherein

[0020] Figure 1 is the front view of the overall structure of the present utility model;

[0021] Figure 2 is Figure 1 the schematic diagram of the installation position of the second brush in

[0022] Figure 3 is the side view of the overall structure of the present utility model;

[0023] Figure 4 is Figure 3 the schematic diagram of the installation position of the first brush in

[0024] Explanation of the reference numerals in the drawings of the specification: 1, lifting assembly; 2, detection assembly; 3, lubrication assembly; 11, lifting frame; 12, steel wire rope; 13, fixed pulley; 14, lifting trolley; 15, winch; 21, magnetizing body; 22, sensor; 23, controller; 31, first oil pump; 32, second oil pump; 33, first brush; 34, second brush; 35, first support frame; 36, second support frame; 37, flexible oil pipe. Specific embodiments

[0025] The following further illustrates the present utility model in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the examples given are not intended to limit the present utility model.

[0026] Referring to Figures 1 - 4 as shown, the present utility model discloses an automatic early warning and maintenance structure for a steel wire rope, including:

[0027] A lifting assembly 1, the lifting assembly 1 includes a lifting frame 11 and a steel wire rope 12, a winch 15 is arranged on the side wall of the lifting frame 11, a set of fixed pulleys 13 is arranged on the top of the lifting frame 11, and the steel wire rope 12 connects the winch 15 and the fixed pulley 13;

[0028] A detection assembly 2, the detection assembly 2 includes at least a pair of coaxially arranged magnetizing bodies 21 and sensors 22, the magnetizing bodies 21 and sensors 22 are arranged on the lifting frame 11, and the magnetizing bodies 21 are electrically connected to the sensors 22; the steel wire rope 12 passes through the magnetizing bodies 21 and sensors 22;

[0029] Lubrication assembly 3, the lubrication assembly 3 includes a first oil pump 31, a second oil pump 32, a pair of first brushes 33 and a pair of second brushes 34. The pair of first brushes 33 are arranged along the axial direction of the drum of the winch 15, and the pair of second brushes 34 are arranged on the lifting frame 11. The first brushes 33 and the second brushes 34 are in contact with the steel wire rope 12; the first oil pump 31 is connected to the first brushes 33; the second oil pump 32 is connected to the second brushes 34; the sensor 22 is electrically connected to the first oil pump 31 and the second oil pump 32.

[0030] In the present utility model, the power of the steel wire rope 12 is realized by the traction of the winch 15. One end of the steel wire rope 12 is connected to the winch 15 to drive the drum, and the other end bypasses the fixed pulley 13 at the top of the lifting frame 11 and is connected to the stacker arranged on the lifting frame 11 to realize the lifting action of the stacker. The detection assembly 2 performs detection through the cooperation of the magnetizer 21 and the sensor 22, and the steel wire rope 12 is arranged inside the magnetizer 21 and the sensor 22. The steel wire rope 12 is composed of multiple stranded steel wire ropes 12. When there are defects such as internal and external wire breaks, corrosion, wear, change in metal cross-sectional area, loose strands, and wire skipping in the steel wire rope 12, the magnetizer 21 magnetizes the chaotic magnetic field signals inside the steel wire rope 12 into a uniformly detectable magnetic field as a whole, and the sensor 22 detects and analyzes the magnetic signals, and identifies the damage condition of the detected steel wire rope 12 through an accurate algorithm. According to the feedback of the signal of the sensor 22, the first oil pump 31 and the second oil pump 32 adjust the single oil supply amount, greatly extending the service life of the steel wire rope 12 and ensuring the normal and safe use of the steel wire rope 12. The first oil pump 31 and the second oil pump 32 spray lubricating oil onto the first brushes 33 and the second brushes 34. The steel wire rope 12 is in contact with the first brushes 33 and the second brushes 34 during lifting, and the lubricating oil on the brushes is coated on the steel wire rope 12 to lubricate the lifting part of the steel wire rope 12 and play a role in maintaining the steel wire rope 12.

[0031] The present utility model realizes the detection of the lifting part of the steel wire rope 12 through the detection assembly 2, dynamically monitors and timely feedback, and can perform the life cycle detection of the steel wire rope 12 without stopping the machine for inspection. Secondly, through the lubrication assembly 3, the lubrication of the entire steel wire rope 12 can be covered, the steel wire rope 12 can be regularly smeared with lubricating oil, which is safe and reliable, can reduce the risk of high-altitude maintenance of personnel, and can also extend the service life of the steel wire rope 12.

[0032] Further, the detection assembly 2 further includes a control module 23, and the control module 23 is electrically connected to the sensor 22, the first oil pump 31 and the second oil pump 32 respectively.

[0033] Specifically, in the present utility model, the control module 23 is based on a PLC control system. When a defect occurs in the wire rope 12, the sensor 22 feeds back a signal to the control module 23, and the control module 23 conducts data exchange to timely adjust the lubrication frequency and the single oil delivery amount of the first oil pump 31 and the second oil pump 32.

[0034] Further, as a preferred solution of the present utility model, the first oil pump 31 and the first brush 33, and the second oil pump 32 and the second brush 34 are connected by flexible oil pipes 37.

[0035] Further, the magnetizer 21 and the sensor 22 are arranged at one end of the lifting frame 11 close to the fixed pulley 13.

[0036] Specifically, according to the effective use area of the wire rope 12 and the force analysis, the fatigue strength of the wire rope 12 is judged. Defects such as loosening and wire breaking are likely to occur when passing near the fixed pulley 13. Arranging the magnetizer 21 and the sensor 22 near the fixed pulley 13 can timely detect the problems of the wire rope 12 and give timely feedback.

[0037] Further, the second brush 34 is arranged on one side of the lifting frame 11 close to the sensor 22.

[0038] Specifically, the area near the fixed pulley 13 is also the effective area for the lifting of the wire rope 12. The second brush 34 can brush lubricating oil on the effective area of the wire rope 12.

[0039] Further, a first support frame 35 is arranged on the winch 15, and the first brush 33 is arranged on the first support frame 35. A second support frame 36 is arranged on the lifting frame 11, and the second brush 34 is connected to the second support frame 36.

[0040] Specifically, the installation direction of the first support frame 35 is consistent with the axial direction of the drum of the winch 15. The wire rope 12 abuts against the first brush 33, which can also play a function of preventing the wire rope 12 from slipping out of the groove. The second brush 34 is installed on the second support frame 36, and it only needs to ensure that the size of the brush is larger than the diameter of the wire rope 12.

[0041] Further, the lifting assembly 1 further includes a lifting trolley 14. The lifting trolley 14 slides up and down along the lifting frame 11. One end of the wire rope 12 is connected to the lifting trolley 14, and the other end of the wire rope 12 bypasses the fixed pulley 13 and is connected to the drum of the winch 15. Specifically, the drum of the winch 15 winds the wire rope 12, thereby realizing the lifting action of the lifting trolley 14 on the lifting frame 11.

[0042] Embodiment 2

[0043] A stacker, comprising the automatic warning and maintenance structure of the steel wire rope described in Embodiment 1.

[0044] In summary, the present utility model introduces an automatic warning and maintenance structure for a steel wire rope 12 and a stacker. The detection component 2 is used to detect the lifting part of the steel wire rope 12, and dynamic monitoring and timely feedback are realized. The life cycle detection of the steel wire rope 12 can be achieved without stopping the machine for inspection. Secondly, the lubricating component 3 can cover the lubrication of the entire steel wire rope 12, regularly apply lubricating oil to the steel wire rope 12, which is safe and reliable, can reduce the risk of high-altitude maintenance by personnel, and can also extend the service life of the steel wire rope 12.

[0045] Obviously, the above embodiments are only examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. An automatic warning and maintenance structure for a steel wire rope, characterized in that, Comprising: A lifting assembly, the lifting assembly including a lifting frame and a steel wire rope, a hoist being provided on the side wall of the lifting frame, a set of fixed pulleys being provided on the top of the lifting frame, and the steel wire rope connecting the hoist and the fixed pulleys; A detection assembly, the detection assembly including at least a pair of coaxially arranged magnetizing bodies and sensors, the magnetizing bodies and sensors being provided on the lifting frame, and the magnetizing bodies being electrically connected to the sensors; the steel wire rope being threaded through the magnetizing bodies and sensors; A lubrication assembly, the lubrication assembly including a first oil pump, a second oil pump, a pair of first brushes and a pair of second brushes, the pair of first brushes being arranged along the axial direction of the drum of the hoist, the pair of second brushes being provided on the lifting frame, the first brushes and the second brushes being in contact with the steel wire rope; the first oil pump being connected to the first brushes; the second oil pump being connected to the second brushes; the sensors being electrically connected to the first oil pump and the second oil pump.

2. The automatic warning and maintenance structure of the steel wire rope according to claim 1, wherein: The detection assembly further includes a control module, the control module being electrically connected to the sensors, the first oil pump and the second oil pump respectively.

3. The automatic warning and maintenance structure of the steel wire rope according to claim 1, characterized in that: The first oil pump and the first brushes and the second oil pump and the second brushes are connected by flexible oil pipes.

4. The automatic warning and maintenance structure of the steel wire rope according to claim 1, wherein: The magnetizing bodies and sensors are provided at one end of the lifting frame close to the fixed pulleys.

5. The automatic warning and maintenance structure of the steel wire rope according to claim 1, characterized in that: The second brushes are provided on the side of the lifting frame close to the sensors.

6. The automatic warning and maintenance structure of the steel wire rope according to claim 1, characterized in that: A first support frame is provided on the hoist, the first support frame being arranged along the axial direction of the drum of the hoist, and the first brushes being provided on the first support frame.

7. The automatic warning and maintenance structure of the steel wire rope according to claim 1, characterized in that: A second support frame is provided on the lifting frame, and the second brushes are connected to the second support frame.

8. The automatic warning and maintenance structure of the steel wire rope according to claim 1, characterized in that: The lifting assembly further includes a lifting trolley, the lifting trolley sliding up and down along the lifting frame, one end of the steel wire rope being connected to the lifting trolley, and the other end of the steel wire rope bypassing the fixed pulleys and being connected to the drum of the hoist.

9. A stacker, characterized in that, An automatic warning and maintenance structure of a steel wire rope as claimed in claims 1-8 is included.