Safety monitoring management device for large hoisting machinery

Abstract

The invention relates to a safety monitoring and management device for large hoisting machinery, and solves the problems that in the prior art, a steel wire rope is integrally cylindrical, and a camera with a fixed shooting direction can only shoot half of images of the steel wire rope and cannot integrally shoot the circumferential direction of the steel wire rope. The device comprises a shell and a visual monitoring mechanism, the visual monitoring mechanism comprises a shooting assembly and a driving mechanism, a rotating ring is arranged in the shell, the shooting assembly is installed on the rotating ring, and the driving mechanism is used for driving the rotating ring to rotate. According to the technical scheme, the driving mechanism can drive the shooting assembly installed on the rotating ring to rotate, image acquisition is conducted on the steel wire rope passing through the interior of the shell in the circumferential direction, and the accuracy of shape monitoring of the steel wire rope is improved.

Description

Technical Field

[0001] This invention relates to the field of safety monitoring technology for lifting equipment, and specifically to a safety monitoring and management device for large-scale lifting machinery. Background Technology

[0002] As a crucial component and direct load-bearing element of cranes, the proper condition of wire ropes is essential for their normal operation. However, various defects can occur in wire ropes during actual use, such as wire extrusion, strand extrusion / twisting, localized flattening, kinking, and cage-like distortion. Failure to detect these defects promptly can endanger equipment and personnel safety. In practice, while workers periodically inspect wire ropes, real-time inspection is not always possible.

[0003] Patent document CN201910677806.7 discloses a wire rope detection device for bridge cranes. The bridge crane includes two vertically arranged columns, with a crossbeam fixedly connected between the upper ends of the two columns. A slide rail is provided at the bottom of the crossbeam, and a support frame is slidably arranged in the slide rail. A drive motor is fixedly mounted on the support frame, and the drive motor drives a drum connected to it. A wire rope is wound on the drum, and a drum baffle is fixedly fitted at one end of the drum. A pulley assembly is provided on the wire rope. The detection device includes a camera mechanism, a positioning mechanism, and a data processor. The camera mechanism includes a camera fixedly connected to the pulley assembly, with the camera facing the wire rope. The positioning mechanism includes several magnetic sheets evenly arranged circumferentially on the drum baffle and an electromagnetic sensor fixedly mounted on the support frame, with the electromagnetic sensor close to the drum baffle. The data processor is electrically connected to both the camera and the electromagnetic sensor. This invention can accurately and efficiently detect and locate wear or faults on wire ropes.

[0004] Although this technical solution can acquire images of the surface condition of the wire rope through a camera, since the wire rope is cylindrical in shape, the camera with a fixed shooting direction can only capture half of the wire rope image and cannot completely record the entire circumference of the wire rope, which has certain defects. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a safety monitoring and management device for large-scale lifting machinery, so as to solve the problem in the prior art that because the wire rope is cylindrical in shape, the camera with a fixed shooting direction can only capture half of the image of the wire rope and cannot completely record the entire circumference of the wire rope.

[0006] This invention is achieved through the following technical solution:

[0007] A safety monitoring and management device for large lifting machinery includes a housing and a visual monitoring mechanism. The visual monitoring mechanism includes a camera component and a drive mechanism. A rotating ring is disposed inside the housing. The camera component is mounted on the rotating ring. The drive mechanism is used to drive the rotating ring to rotate.

[0008] Further defining the drive mechanism, it includes a fixed sleeve and a transmission structure. The fixed sleeve is installed inside the housing. The transmission structure includes a support shaft, a friction wheel, a driving bevel gear, a driven bevel gear, and a flat gear. The friction wheel and the driving bevel gear are fixedly mounted on the support shaft. The support shaft is horizontally mounted inside the fixed sleeve and rotatably connected to the fixed sleeve. A fixed ring is installed at one end of the fixed sleeve. A transmission shaft is connected to the driven bevel gear. One end of the transmission shaft passes through the fixed ring and connects to the flat gear. An internal gear ring that meshes with the flat gear is provided on the inner edge of the rotating ring.

[0009] Further specifying, the fixing ring is also equipped with a connecting ring, which includes two overlapping conductive rings and three insulating rings. One of the insulating rings is located between the two conductive rings, and the other two insulating rings are located on the outside of the two conductive rings respectively. The inner edges of the two conductive rings protrude inward, and the positive and negative terminals of the imaging component are respectively connected to the inner edges of the two conductive rings.

[0010] Furthermore, both conductive rings have annular ribs on their outer side along their inner edges, and the terminals of the imaging component are bent inwards.

[0011] Furthermore, the friction wheel has a guide groove on its surface that cooperates with the wire rope.

[0012] Further, it also includes an oil removal mechanism, of which two are provided and are symmetrically installed at both ends of the housing.

[0013] Further specifying, the oil removal mechanism includes a mounting base and an oil scraper. The mounting base has an annular structure, and a support ring is installed inside the mounting base via a bearing. The oil scraper is installed on the support ring, and the center of the oil scraper has a first through hole for the steel wire rope to pass through. The wall of the first through hole is provided with several oil scraping teeth.

[0014] Further specified, the scraper is installed inside the support ring, and a sealing plate is installed on the outside of the support ring, with a second through hole in the center of the sealing plate for the wire rope to pass through.

[0015] Furthermore, the space between the sealing plate and the scraper is filled with an absorbent material.

[0016] Furthermore, the thickness of the inner side of the wall of the first through hole is less than the thickness of the outer side.

[0017] The beneficial effects of this invention are as follows:

[0018] This large-scale lifting machinery safety monitoring and management device can drive the imaging component installed on the rotating ring to rotate through the drive mechanism, and collect images of the wire rope passing through the shell in the circumferential direction, thereby improving the accuracy of monitoring the shape of the wire rope.

[0019] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0020] Figure 1 This is a front view of a safety monitoring and management device for large lifting machinery according to the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of a safety monitoring and management device for large lifting machinery according to the present invention;

[0022] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of AA;

[0023] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of BB;

[0024] Figure 5 for Figure 2 Enlarged view of C;

[0025] Figure 6 This is a schematic diagram of the oil scraper.

[0026] In the diagram: 1. Housing; 2. Rotating ring; 3. Imaging assembly; 4. Fixing sleeve; 5. Support shaft; 6. Friction wheel; 7. Driving bevel gear; 8. Driven bevel gear; 9. Flat gear; 10. Drive shaft; 11. Conductive ring; 12. Insulating ring; 13. Terminal; 14. Annular rib; 15. Terminal post; 16. Guide groove; 17. Card holder; 18. Scraper; 19. Support ring; 20. Scraper teeth; 21. Sealing plate; 22. Adsorbent material; 23. Steel wire rope; 24. Fixing ring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0032] Please see Figure 1-6 The present invention provides a technical solution: a safety monitoring and management device for large lifting machinery, comprising a housing 1 and a visual monitoring mechanism, wherein the visual monitoring mechanism includes a shooting component 3 and a driving mechanism, a rotating ring 2 is provided inside the housing 1, the shooting component 3 is mounted on the rotating ring 2, and the driving mechanism is used to drive the rotating ring 2 to rotate.

[0033] In this embodiment, the housing 1 serves as the mounting base for the visual monitoring mechanism. It can be mounted on the boom of a crane using a bracket. The housing 1 should be located near the drum end, and the housing 1 is fitted over the wire rope 23. The wire rope 23 passes through the rotating ring 2 inside the housing 1. When the crane lifts the goods, it will move inside the housing 1. Under the action of the drive mechanism, the rotating ring 2 will rotate inside the housing 1. During the rotation, it will drive the imaging component 3 to rotate synchronously. Through the rotation, a complete image of the appearance of the wire rope can be captured.

[0034] In this embodiment, the driving mechanism includes a fixed sleeve 4 and a transmission structure. The fixed sleeve 4 is installed inside the housing 1. The transmission structure includes a support shaft 5, a friction wheel 6, a driving bevel gear 7, a driven bevel gear 8, and a flat gear 9. The friction wheel 6 and the driving bevel gear 7 are fixedly mounted on the support shaft 5. The support shaft 5 is horizontally mounted inside the fixed sleeve 4 and is rotatably connected to the fixed sleeve 4. A fixed ring 24 is installed at one end of the fixed sleeve 4. A transmission shaft 10 is connected to the driven bevel gear 8. One end of the transmission shaft 10 passes through the fixed ring 24 and is connected to the flat gear 9. A rotating ring 2 is rotatably mounted inside the fixed ring 24 through a bearing. An internal gear ring that meshes with the flat gear 9 is provided on the inner edge of the rotating ring 2.

[0035] The support shaft 5 serves as the mounting structure for the friction wheel 6 and the driving bevel gear 7. It is mounted within the fixed sleeve 4 and can rotate freely within the sleeve. The friction wheel 6 contacts the passing wire rope 23. During the sliding of the wire rope 23, it compresses and drives the friction wheel 6 to rotate. This rotation of the friction wheel 6, in turn, drives the support shaft 5 to rotate, which in turn drives the driving bevel gear 7 to rotate. Finally, the driving bevel gear 7 meshes with the driven bevel gear 8, driving the spur gear 9 to rotate. The spur gear 9 is mounted on the fixed ring 24 via the transmission shaft 10. When it rotates, it will drive the rotating ring 2, which meshes with it through the internal gear ring, to rotate, thereby driving the imaging component 3 installed on the rotating ring 2 to rotate. When the crane is working, the wire rope 23 will be continuously wound up and down on the drum. The force on the extended part of the wire rope 23 will be much greater than the force on the part of the wire rope 23 wound on the drum. This solution can continuously acquire images of the circumference of the wire rope 23 when the wire rope 23 is extended or retracted on the drum, and monitor the appearance changes of the wire rope 23.

[0036] In this embodiment, a connecting ring is also installed on the fixing ring 24. The connecting ring includes two overlapping conductive rings 11 and three insulating rings 12. One of the insulating rings 12 is located between the two conductive rings 11, and the other two insulating rings 12 are located outside the two conductive rings 11 respectively. The inner edges of the two conductive rings 11 protrude inward. The positive and negative terminals of the wiring terminal 13 of the shooting component 3 are respectively connected to the inner edges of the two conductive rings 11.

[0037] The connecting ring serves as an intermediate connector for power supply and data transmission of the imaging component 3. The number of its conductive rings 11 is equal to the number of terminals 13 of the imaging component 3. Adjacent conductive rings 11 are separated by insulating rings 12 to avoid short circuits. The inner edges of the conductive rings 11 form a ring track for connecting with the terminals 13 of the imaging component 3. Each conductive ring 11 is provided with an independent terminal 15 that extends outward through the side wall of the housing 1 to facilitate connection with external devices.

[0038] In this embodiment, annular ribs 14 are provided on the outward side of the inner edge of both conductive rings 11, and the wiring terminals 13 of the imaging component 3 are all bent inward.

[0039] By setting the annular rib 14 and bending the terminal 13 of the imaging component 3 inward, the connection between the terminal 13 of the imaging component 3 and the conductive ring 11 can be made tighter.

[0040] In this embodiment, the friction wheel 6 has a guide groove 16 on its surface that cooperates with the wire rope 23.

[0041] The inwardly recessed structure of the guide groove 16 increases the contact area with the wire rope 23, increases the friction between the two, and better drives the friction wheel 6 to rotate.

[0042] In this embodiment, an oil removal mechanism is also included. Two oil removal mechanisms are provided and are symmetrically installed at both ends of the housing 1.

[0043] The degreasing mechanism is used to remove the lubricating oil adhering to the surface of the wire rope 23, so as to avoid the lubricating oil covering affecting the image acquisition clarity of the imaging component 3, and at the same time to avoid the wire rope 23 carrying too much lubricating oil and reducing the friction between it and the friction wheel 6. Two are symmetrically arranged to ensure that the wire can be effectively cleaned when it passes through the housing 1 in both directions.

[0044] In this embodiment, the oil removal mechanism includes a card holder 17 and an oil scraper 18. The card holder 17 has an annular structure. A support ring 19 is installed in the card holder 17 through a bearing. The oil scraper 18 is installed on the support ring 19. The center of the oil scraper 18 has a first through hole for the steel wire rope 23 to pass through. The wall of the first through hole is provided with a plurality of oil scraping teeth 20.

[0045] The mounting base 17 can be composed of two interlocking base plates. The outer ring of the bearing is fixed between the two base plates. The support ring 19 is embedded in the inner ring of the bearing and can rotate freely within the mounting base 17. The oil scraper 18 is installed on the support ring 19 and can rotate synchronously with the support ring 19. The oil scraper 18 is engaged with the outer shape of the wire rope 23 through the oil scraping teeth 20 set on the inner wall of the first through hole. During the movement of the wire rope 23, the oil scraping teeth 20 will penetrate into the gaps between multiple wires and slide along the gaps. Since the gaps between the wires are spiral, the freely rotating oil scraper 18 can rotate under the squeezing and pushing of the gaps between the wires and the oil scraping teeth 20 during the movement of the wire rope 23, which has a good cleaning effect on the lubricating oil adhering to the surface of the wire rope 23.

[0046] In this embodiment, the oil scraper 18 is installed inside the support ring 19, and a sealing plate 21 is installed on the outside of the support ring 19. The sealing plate 21 has a second through hole in the center for the steel wire rope 23 to pass through.

[0047] The scraper 18 and the sealing plate 21 are respectively installed on both sides of the support ring 19, forming a groove-shaped structure. Since the scraper 18 is located on the inner side, when the housing 1 is in a vertical state and the wire rope 23 passes downward, the working process of the scraper mechanism at the top is as follows: it first passes through the second through hole of the sealing plate 21, and then through the first through hole on the scraper 18. The scraper teeth 20 on the inner wall of the first through hole remove the oil, and the removed lubricating oil will remain between the scraper 18 and the sealing plate 21. When the wire rope 23 passes upward, the lubricating oil attached to it is cleaned by the oil removal mechanism at the bottom. After passing through the first through hole, it extends outward. During the extension process, the surface will be re-attached with lubricating oil. When the wire rope 23 moves downward, the lubricating oil is removed, and then it extends out through the second through hole. The second through hole can scrape off the excess lubricating oil. The oil scraping mechanism located at the top, through the cooperation of the sealing plate 21 and the oil scraping plate 18, can perform oil removal when the wire rope 23 enters the housing 1 downward, and oiling when it extends upward out of the housing 1. Similarly, since the oil removal mechanism located at the bottom of the housing 1 is symmetrically arranged with the oil removal mechanism located at the top, it can perform oil removal when the wire rope 23 enters the housing 1 upward, and oiling when the wire rope 23 extends downward out of the housing 1, so that the part of the wire rope 23 inside the housing 1 remains clean, while the part outside the housing 1 is always covered with lubricating oil.

[0048] In this embodiment, an absorbent material 22 is filled between the sealing plate 21 and the oil scraper 18.

[0049] The adsorbent material 22 can be a loose and porous material such as a sponge, which can serve as an adsorbent structure for the lubricating oil cleaned by the scraper 18, reducing the leakage of lubricating oil.

[0050] In this embodiment, the thickness of the inner side of the wall of the first through hole is less than the thickness of the outer side.

[0051] The tip structure of the scraper tooth 20 on the wall of the first through hole is made more prominent, which makes it easier to penetrate into the gap of the steel wire, facilitates the cleaning of lubricating oil on the steel wire, and improves the cleaning effect of lubricating oil.

[0052] In this embodiment, the housing 1 can be a multi-segment structure, with adjacent segments connected by flange bolts. The two adjacent segments can serve as mounting connection points for the card holder 17, the fixing sleeve 4, etc., to facilitate assembly.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A safety monitoring and management device for large lifting machinery, comprising a housing and a visual monitoring mechanism, characterized in that: The visual monitoring mechanism includes a shooting component and a driving mechanism. A rotating ring is provided inside the housing. The shooting component is mounted on the rotating ring, and the driving mechanism is used to drive the rotating ring to rotate.

2. The safety monitoring and management device for large lifting machinery according to claim 1, characterized in that: The driving mechanism includes a fixed sleeve and a transmission structure. The fixed sleeve is installed inside the housing. The transmission structure includes a support shaft, a friction wheel, a driving bevel gear, a driven bevel gear, and a flat gear. The friction wheel and the driving bevel gear are fixedly mounted on the support shaft. The support shaft is horizontally mounted inside the fixed sleeve and rotatably connected to the fixed sleeve. A fixed ring is installed at one end of the fixed sleeve. A transmission shaft is connected to the driven bevel gear. One end of the transmission shaft passes through the fixed ring and is connected to the flat gear. A rotating ring is rotatably mounted inside the fixed ring through a bearing. An internal gear ring that meshes with the flat gear is provided on the inner edge of the rotating ring.

3. The safety monitoring and management device for large lifting machinery according to claim 2, characterized in that: The fixing ring is also equipped with a connecting ring, which includes two overlapping conductive rings and three insulating rings. One of the insulating rings is located between the two conductive rings, and the other two insulating rings are located on the outside of the two conductive rings respectively. The inner edges of the two conductive rings protrude inward, and the positive and negative terminals of the imaging component are respectively connected to the inner edges of the two conductive rings.

4. The safety monitoring and management device for large lifting machinery according to claim 3, characterized in that: Both conductive rings have annular ribs on the outward side of their inner edges, and the terminals of the imaging component are bent inward.

5. A safety monitoring and management device for large lifting machinery according to claim 2, characterized in that: The friction wheel has guide grooves on its surface that cooperate with the wire rope.

6. A safety monitoring and management device for large lifting machinery according to any one of claims 1 to 5, characterized in that: It also includes an oil removal mechanism, of which two are provided and are symmetrically installed at both ends of the housing.

7. A safety monitoring and management device for large lifting machinery according to claim 6, characterized in that: The oil removal mechanism includes a mounting base and an oil scraper. The mounting base has a ring structure, and a support ring is installed inside the mounting base via a bearing. The oil scraper is installed on the support ring, and a first through hole for a steel wire rope to pass through is opened in the center of the oil scraper. The wall of the first through hole is provided with several oil scraping teeth.

8. A safety monitoring and management device for large lifting machinery according to claim 7, characterized in that: The scraper is installed inside the support ring, and a sealing plate is installed on the outside of the support ring. The sealing plate has a second through hole in the center for the wire rope to pass through.

9. A safety monitoring and management device for large lifting machinery according to claim 8, characterized in that: An absorbent material is filled between the sealing plate and the scraper.

10. A safety monitoring and management device for large lifting machinery according to claim 7, characterized in that: The thickness of the inner side of the wall of the first through hole is less than the thickness of the outer side.

Images