Dual-purpose cable take-up and pay-off device for lifting appliance and grab bucket of portal crane

Abstract

The utility model relates to the technical field of cable take-up and pay-off, and discloses a dual-purpose cable take-up and pay-off device for a lifting appliance and a grab bucket of a portal crane. According to the invention, a guide groove plate, a sliding rod, a transverse limiting insertion hole, a transverse insertion shaft, a rotating roller and a limiting nut, which are connected with the side surface of the placement base, form a transverse wire stroking assembly; and a hollow foundation trench, a lifting rod, a longitudinal limiting insertion hole, a longitudinal limiting insertion shaft and a longitudinal rotating roller which are connected with the side surface of the placement base form a longitudinal wire stroking assembly. And by utilizing the synergistic effect of the plug-in and limiting assemblies used for adjustment in the transverse and longitudinal assemblies, the distance between the rotating rollers and the longitudinal rotating rollers placed on the device can be adjusted in time, and after adjustment, the device can be used for adapting to diameter changes of different cables.

Description

Technical Field

[0001] This application belongs to the field of cable winding and unwinding technology, specifically a dual-purpose cable winding and unwinding device for a gantry crane's lifting grab bucket. Background Technology

[0002] A dual-purpose cable retraction and deployment device for a gantry crane's spreader and grab bucket is a device used for the effective retraction, deployment, and management of the cable of a spreader and grab bucket when a gantry crane (hereinafter referred to as a gantry crane) is loading and unloading ships on the dock's front rail.

[0003] As disclosed in CN221939926U, a cable retraction device for gantry cranes includes: a first anti-rotation device, a second anti-rotation device, and a third anti-rotation device. The first anti-rotation device includes: a clamping and fixing disc; a clamping inner sleeve disposed within the clamping and fixing disc; a first support mechanism disposed on the circumferential sidewall of the clamping and fixing disc; and a first retaining ring disposed at the end of the first support mechanism. The second anti-rotation device includes: a rotary table mechanism; a clamp disposed within the rotary table mechanism; a second support mechanism disposed on the circumferential sidewall of the rotary table mechanism; and a second retaining ring disposed at the end of the second support mechanism. The third anti-rotation device includes: a bottom fixing disc; a third support mechanism disposed on the circumferential sidewall of the bottom fixing disc; and a third retaining ring disposed at the end of the third support mechanism. The cable retraction device for gantry cranes disclosed in this application can ensure that the cable is normally retracted into the cable basket during the lifting process, avoiding cable damage and significant property loss, and improving the efficiency of gantry crane operations.

[0004] However, in actual use, it was found that during the cable winding process, to prevent tangling, mechanical devices are typically used to straighten and untangle the cables, maintaining their individual characteristics and ensuring smooth operation. However, since gantry cranes and similar devices are frequently repaired or replaced, the deployed cables are also replaced. The cable straightening devices used for these replacements may not be compatible with the new cable diameters, causing problems. Therefore, mechanical adjustments are needed to adapt them to cables of different diameters. Utility Model Content

[0005] The purpose of this application is to provide a dual-purpose cable take-up and take-up device for a gantry crane's lifting grab bucket, in order to solve the problem mentioned above of using mechanical devices to adapt to and pull out cables of different diameters.

[0006] The technical solution adopted in this application is as follows: a dual-purpose cable winding and unwinding device for a gantry crane's lifting grab bucket, wherein multiple guide plates are fixedly connected to the side surface of the placement base, and sliding rods are slidably inserted into the guide plates through slots. Multiple lateral limiting holes are provided on the side surface of the sliding rods, and multiple lateral insertion shafts are slidably inserted into the lateral limiting holes through openings. A rotating roller is rotatably connected to the side surface of the lateral insertion shafts, and a limiting nut is rotatably inserted into one end of the lateral insertion shaft relative to the rotating roller. A hollow base groove is fixedly connected to the side surface of the placement base, and a lifting rod is slidably inserted into the side surface of the hollow base groove. Multiple longitudinal limiting holes are provided on the side surface of the lifting rod, and longitudinal limiting shafts are inserted into the longitudinal limiting holes through openings. A longitudinal rotating roller is rotatably connected to the side surface of the longitudinal limiting shafts.

[0007] By adopting the above technical solution, the operator uses a placement base as the base component, on which two components are arranged. The guide plate, sliding rod, lateral limiting insertion hole, lateral insertion shaft, rotating roller, and limiting nut connected to the side surface of the placement base together constitute a lateral cable straightening component. The hollow base groove, lifting rod, longitudinal limiting insertion hole, longitudinal limiting shaft, and longitudinal rotating roller together constitute a longitudinal cable straightening component. The synergistic effect of the insertion and limiting components used for adjustment in the lateral and longitudinal components allows for timely adjustment of the spacing between the rotating roller and the longitudinal rotating roller placed on them. After adjustment, it can accommodate different cable diameter changes. Through these components, the operator can use the dual lateral and longitudinal components to adjust the spacing, allowing the cable to pass through the gap between the dual components, thereby achieving the cable straightening effect and preventing cable tangling. Even when the cable is replaced or its diameter changes, the entire device can still be used.

[0008] The base serves as the foundation for the device. The guide plate and sliding rod together form the assembly that drives the horizontal insertion shaft and rotating roller to rise and fall. This rising and falling is to adjust the height of the horizontal assembly to match the subsequent vertical assembly, facilitating cable passage. The horizontal insertion shaft and rotating roller are connected via horizontal limiting holes on the sliding rod; inserting them into different holes adjusts the spacing between them. The end of the horizontal insertion shaft opposite the rotating roller is threaded, allowing a limiting nut to interact with it for stable positioning.

[0009] The lifting rod on the hollow base trench serves a lifting function, primarily driving the longitudinal limiting shaft, longitudinal roller assembly, and transverse connecting shaft and roller assembly in the transverse assembly to achieve the same horizontal height. The longitudinal limiting hole on the lifting rod acts as a connecting component, allowing the longitudinal rollers in the longitudinal assembly to adjust their spacing, thus achieving adjustment.

[0010] In a preferred embodiment, an auxiliary limiting nut is rotatably inserted into one end of the longitudinal limiting shaft relative to the longitudinal rotating roller, and a connecting side plate is fixedly connected to the side surface of the guide plate.

[0011] By adopting the above technical solution, the auxiliary limiting nut is used as the limiting component for the entire longitudinal limiting shaft and longitudinal roller assembly. Its main function is to interact with the thread at one end of the longitudinal limiting shaft, ensuring stability after tightening. The connecting side plate serves as the connecting component within the limiting assembly.

[0012] In a preferred embodiment, the side surface of the connecting side plate is provided with a plurality of height insertion holes, and height limiting bolts are inserted into the height insertion holes through the openings.

[0013] By adopting the above technical solution, the sliding rod and the height insertion hole are connected in series using height limiting bolts. After the connection is made, the entire device is fixed in position.

[0014] In a preferred embodiment, the side surface of the hollow base trench is provided with a plurality of lifting limit insertion holes, and lifting limit bolts are inserted into the lifting limit insertion holes through the openings.

[0015] By adopting the above technical solution, the lifting rod is fixed by the insertion between the lifting limit socket and the lifting limit bolt. In order to prevent the device structure from becoming unstable due to force, the lifting limit bolt has multiple insertion functions.

[0016] In a preferred embodiment, a placement base plate is fixedly connected to the bottom surface of the placement base, and a support frame is fixedly connected to the side surface of the placement base plate.

[0017] By adopting the above technical solution, the substrate is used as the base plate for the entire device, while the support frame is used as the direct mounting and connecting frame for the device.

[0018] In a preferred embodiment, a motor housing is fixedly connected to the side surface of the support frame, and a servo motor is fixedly connected to the inner side surface of the motor housing.

[0019] By adopting the above technical solution, a servo motor is used as the power component to drive the rotation of the cable winding component, while the motor housing serves as a protective element.

[0020] In a preferred embodiment, a drive shaft is connected to the side surface of the servo motor, and a rotating roller is connected to the side surface of the drive shaft.

[0021] By adopting the above technical solution, the power of the servo motor is transmitted through the rotating shaft, and then the rotating roller is used as the cable assembly take-up component.

[0022] In a preferred embodiment, a cable head limiting device is provided on the side surface of the rotating roller, and a cable is connected to the side surface of the cable head limiting device.

[0023] By adopting the above technical solution, the cable end is pressed tightly by the cable head limiting device, so that the cable can be better wound on the rotating roller.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0025] In this application, the base serves as the foundation, primarily functioning as a support. The guide plate and sliding rod together form an assembly that drives the transverse insertion shaft and rotating roller to rise and fall. This rising and falling is to adjust the height of the transverse assembly to align with the subsequent longitudinal assembly, facilitating cable passage. The transverse insertion shaft and rotating roller utilize transverse limiting holes on the sliding rod as connecting components, allowing for adjustment of their spacing by inserting them into different holes. The end of the transverse insertion shaft opposite the rotating roller is threaded, allowing a limiting nut to interact with it, achieving a stable and controlled position.

[0026] The lifting rod on the hollow base trench serves a lifting function, primarily driving the longitudinal limiting shaft, longitudinal roller assembly, and transverse connecting shaft and roller assembly in the transverse assembly to achieve the same horizontal height. The longitudinal limiting hole on the lifting rod acts as a connecting component, allowing the longitudinal rollers in the longitudinal assembly to adjust their spacing, thus achieving adjustment. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the overall device of this application;

[0028] Figure 2 This is a detailed schematic diagram of the guide groove plate in this application;

[0029] Figure 3 This is a detailed schematic diagram of the hollow foundation trench in this application;

[0030] Figure 4 This is a cross-sectional view of the motor housing in this application.

[0031] The diagram shows the following components: 1. Base; 2. Guide plate; 3. Sliding rod; 4. Lateral limit hole; 5. Lateral insertion shaft; 6. Rotating roller; 7. Limit nut; 8. Hollow base groove; 9. Lifting rod; 10. Longitudinal limit hole; 11. Longitudinal limit shaft; 12. Longitudinal rotating roller; 13. Auxiliary limit nut; 14. Connecting side plate; 15. Height hole; 16. Height limit bolt; 17. Lifting limit hole; 18. Lifting limit bolt; 19. Base plate; 20. Support frame; 21. Motor housing; 22. Servo motor; 23. Drive shaft; 24. Rotating roller; 25. Cable head limit device; 26. Cable. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Reference Figure 1-4 ,

[0034] Example: A dual-purpose cable retraction device for a gantry crane's lifting grab bucket. Multiple guide plates 2 are fixedly connected to the side surface of a base 1. Sliding rods 3 are slidably inserted into the guide plates 2 through slots. Multiple lateral limiting holes 4 are provided on the side surface of the sliding rods 3. Multiple lateral insertion shafts 5 are slidably inserted into the lateral limiting holes 4 through openings. A rotating roller 6 is rotatably connected to the side surface of the lateral insertion shaft 5. A limiting nut 7 is rotatably inserted into one end of the lateral insertion shaft 5 relative to the rotating roller 6. A hollow base groove 8 is fixedly connected to the side surface of the base 1. A lifting rod 9 is slidably inserted into the side surface of the hollow base groove 8. Multiple longitudinal limiting holes 10 are provided on the side surface of the lifting rod 9. Longitudinal limiting shafts 11 are inserted into the longitudinal limiting holes 10 through openings. A longitudinal rotating roller 12 is rotatably connected to the side surface of the longitudinal limiting shaft 11.

[0035] The operator uses the base 1 as the base component and arranges two components on it. The guide plate 2, sliding rod 3, lateral limiting insertion hole 4, lateral insertion shaft 5, rotating roller 6, and limiting nut 7 connected to the side surface of the base 1 together constitute the lateral cable straightening assembly. The hollow base groove 8, lifting rod 9, longitudinal limiting insertion hole 10, longitudinal limiting insertion shaft 11, and longitudinal rotating roller 12 together constitute the longitudinal cable straightening assembly. The synergistic action of the insertion and limiting components in the lateral and longitudinal assemblies allows for timely adjustment of the distance between the rotating roller 6 and the longitudinal rotating roller 12, accommodating changes in cable diameter. Through these components, the operator can adjust the distance using both lateral and longitudinal components, allowing the cable to pass through the gap between the components, thus achieving the cable straightening effect and preventing knots. Even when the cable is replaced or its diameter changes, the entire device remains operational.

[0036] The base 1 serves as the foundation, acting as a base. The guide plate 2 and sliding rod 3 together form a component that drives the horizontal insertion shaft 5 and rotating roller 6 to rise and fall. This rising and falling is to adjust the height of the horizontal component to match the subsequent vertical component, facilitating cable passage. The horizontal insertion shaft 5 and rotating roller 6 are connected via a horizontal limiting insertion hole 4 on the sliding rod 3. Inserting them into different holes allows for adjustment of their spacing. The end of the horizontal insertion shaft 5 opposite the rotating roller 6 is threaded, allowing the limiting nut 7 to interact with it, achieving a stable and limiting position.

[0037] The lifting rod 9 on the hollow base groove 8 serves a lifting function, mainly to drive the longitudinal limiting insert shaft 11 and longitudinal rotating roller 12 assembly to cooperate with the transverse insert shaft 5 and rotating roller 6 assembly in the transverse assembly to form the same horizontal height. The longitudinal limiting insert hole 10 on the lifting rod 9 serves as a connecting insert component, thereby allowing the longitudinal rotating roller 12 in the longitudinal assembly to adjust its spacing, thus achieving adjustment.

[0038] An auxiliary limiting nut 13 is rotatably inserted into one end of the longitudinal limiting shaft 11 relative to the longitudinal rotating roller 12. A connecting side plate 14 is fixedly connected to the side surface of the guide plate 2. The auxiliary limiting nut 13 serves as a limiting component for the entire longitudinal limiting shaft 11 and longitudinal rotating roller 12 assembly, mainly interacting with the thread at one end of the longitudinal limiting shaft 11 to achieve stability after tightening. The connecting side plate 14 serves as a connecting component within the limiting assembly.

[0039] Multiple height insertion holes 15 are provided on the side surface of the connecting side plate 14. Height limiting bolts 16 are inserted into the height insertion holes 15 through the openings. The sliding rod 3 and the height insertion holes 15 are connected in series by the height limiting bolts 16, and after the series connection, the entire device is fixed in position.

[0040] Multiple lifting limit holes 17 are provided on the side surface of the hollow base trench 8. Lifting limit bolts 18 are inserted into the lifting limit holes 17 through the openings. The lifting rod 9 is fixed by the insertion between the lifting limit holes 17 and the lifting limit bolts 18. In order to prevent the device structure from becoming unstable due to stress, multiple insertions are made in the lifting limit bolts 18.

[0041] A placement base 19 is fixedly connected to the bottom surface of the placement base 1, and a support frame 20 is fixedly connected to the side surface of the placement base 19. The placement base 19 serves as the placement base of the entire device, while the support frame 20 serves as the direct placement and connection frame for the device.

[0042] A motor housing 21 is fixedly connected to the side surface of the support frame 20, and a servo motor 22 is fixedly connected to the inner side surface of the motor housing 21. The servo motor 22 is used as the power component to drive the rotation of the cable winding component, while the motor housing 21 serves a protective function.

[0043] A drive shaft 23 is connected to the side surface of the servo motor 22, and a rotating roller 24 is connected to the side surface of the drive shaft 23. The drive shaft 23 transmits power from the servo motor 22, and the rotating roller 24 is used as a cable winding component.

[0044] A cable end limiting device 25 is provided on the side surface of the rotating roller 24, and a cable 26 is connected to the side surface of the cable end limiting device 25. The cable end limiting device 25 is used to press one end of the cable 26, so that the cable 26 can be better wound on the rotating roller 24.

[0045] The implementation principle of this application's dual-purpose cable winding and unwinding device for a gantry crane's lifting grab bucket is as follows: The operator uses a base 1 as the placement base component, on which two components are arranged. The guide plate 2, sliding rod 3, lateral limiting insertion hole 4, lateral insertion shaft 5, rotating roller 6, and limiting nut 7 connected to the side surface of the base 1 together constitute a lateral cable winding component. The hollow base groove 8, lifting rod 9, longitudinal limiting insertion hole 10, longitudinal limiting insertion shaft 11, and longitudinal rotating roller 12 together constitute a longitudinal cable winding component. By utilizing the synergistic effect of the insertion and limiting components used for adjustment in the lateral and longitudinal components, the distance between the rotating roller 6 and the longitudinal rotating roller 12 placed on them can be adjusted in a timely manner. After adjustment, it can be used to adapt to different cable diameter variations. Through the above components, the operator can use the dual lateral and longitudinal components to adjust the distance, allowing the cable to pass through the gap between the dual components, thereby achieving the cable winding effect and preventing cable tangling. Even when the cable is replaced or its diameter changes, the entire device can still be used.

[0046] The base 1 serves as the foundation, acting as a base. The guide plate 2 and sliding rod 3 together form a component that drives the horizontal insertion shaft 5 and rotating roller 6 to rise and fall. This rising and falling is to adjust the height of the horizontal component to match the subsequent vertical component, facilitating cable passage. The horizontal insertion shaft 5 and rotating roller 6 are connected via a horizontal limiting insertion hole 4 on the sliding rod 3. Inserting them into different holes allows for adjustment of their spacing. The end of the horizontal insertion shaft 5 opposite the rotating roller 6 is threaded, allowing the limiting nut 7 to interact with it, achieving a stable and limiting position.

[0047] The lifting rod 9 on the hollow base groove 8 serves a lifting function, mainly to drive the longitudinal limiting insert shaft 11 and longitudinal rotating roller 12 assembly to cooperate with the transverse insert shaft 5 and rotating roller 6 assembly in the transverse assembly to form the same horizontal height. The longitudinal limiting insert hole 10 on the lifting rod 9 serves as a connecting insert component, thereby allowing the longitudinal rotating roller 12 in the longitudinal assembly to adjust its spacing, thus achieving adjustment.

[0048] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A dual-purpose cable retraction device for a gantry crane's lifting grab bucket, comprising a base (1), characterized in that: The side surface of the placement base (1) is fixedly connected with multiple guide slot plates (2). The guide slot plates (2) are slidably connected to sliding rods (3) through the slots. The side surface of the sliding rods (3) is provided with multiple transverse limiting holes (4). The transverse limiting holes (4) are slidably connected to multiple transverse insertion shafts (5) through the openings. The side surface of the transverse insertion shafts (5) is rotatably connected to a rotating roller (6). The side surface of the transverse insertion shafts (5) relative to the rotating rollers (6) is rotatably connected to a limiting nut (7). The side surface of the placement base (1) is fixedly connected with a hollow base groove (8). The side surface of the hollow base groove (8) is slidably connected to a lifting rod (9). The side surface of the lifting rod (9) is provided with multiple longitudinal limiting holes (10). The longitudinal limiting holes (10) are connected to a longitudinal limiting shaft (11) through the openings. The side surface of the longitudinal limiting shaft (11) is rotatably connected to a longitudinal rotating roller (12).

2. The dual-purpose cable retraction device for the lifting grab bucket of a gantry crane as described in claim 1, characterized in that: The longitudinal limiting insert shaft (11) is rotatably inserted with an auxiliary limiting nut (13) on one end of the longitudinal rotating roller (12), and the guide plate (2) is fixedly connected with a connecting side plate (14).

3. The dual-purpose cable retraction device for the lifting grab bucket of a gantry crane as described in claim 2, characterized in that: The side surface of the connecting side plate (14) is provided with a plurality of height insertion holes (15), and height limiting bolts (16) are inserted into the height insertion holes (15) through the openings.

4. The dual-purpose cable retraction device for the lifting grab bucket of a gantry crane as described in claim 1, characterized in that: The hollow base trench (8) has multiple lifting limit insertion holes (17) on its side surface, and the lifting limit insertion holes (17) are connected to lifting limit bolts (18) through the openings.

5. The dual-purpose cable retraction device for the lifting grab bucket of a gantry crane as described in claim 1, characterized in that: The bottom surface of the placement base (1) is fixedly connected to the placement substrate (19), and the side surface of the placement substrate (19) is fixedly connected to the support frame (20).

6. The dual-purpose cable retraction device for the lifting grab bucket of a gantry crane as described in claim 5, characterized in that: The side surface of the support frame (20) is fixedly connected to the motor housing (21), and the inner side surface of the motor housing (21) is fixedly connected to the servo motor (22).

7. The dual-purpose cable retraction device for the lifting grab bucket of a gantry crane as described in claim 6, characterized in that: The side surface of the servo motor (22) is connected to a drive shaft (23), and the side surface of the drive shaft (23) is connected to a rotating roller (24).

8. The dual-purpose cable retraction device for the lifting grab bucket of a gantry crane as described in claim 7, characterized in that: The side surface of the rotating roller (24) is provided with a cable head limiting device (25), and the side surface of the cable head limiting device (25) is connected to a cable (26).

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