Cable connection buffer assembly of rotary lifting hook

Abstract

The cable connection buffering assembly comprises a cable buffer, a cable pipe clamp and a socket, the cable buffer comprises a stainless steel mesh bundle sleeve, a pulling plate and a spring, the stainless steel mesh bundle sleeve is arranged on the outer side of a cable in a sleeving mode, and the bottom of the stainless steel mesh bundle sleeve is connected with the upper portion of the pulling plate through an earcap. The lower portion of the pulling plate is in buffer connection with the upper portion of the rotating hook through a spring, the tail of the cable is connected with the rotating hook through a socket, the cable pipe clamp is arranged between the cable buffer and the socket, the bottom of the cable pipe clamp is connected with the rotating hook, and the cable penetrates through the cable pipe clamp in a limiting mode. The utility model has the advantages that the pulling buffering between the rotary lifting hook and the cable can be realized, and the cable is prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting, in particular to a cable connection buffer component of a rotating hook. Background Art

[0002] Mobile port crane, referred to as MHC, is a new type of multi-purpose, single-arm crane used for loading and unloading in China. It is used in ports and docks for loading and unloading of general cargo, containers, and bulk cargo. When using container working conditions, consider powering the container spreader, use a rotating hook, and place the cable reel at the head of the boom. The cable is connected to the rotating hook through a socket.

[0003] The lifting speed of the mobile crane in the port is usually designed to be 0~140m / min, so the control cable needs to be controlled to maintain synchronization during the lifting and lowering process of the hook carrying the cargo. However, it is also necessary to consider that the cable is subject to its own gravity during the lifting process and the inertia force during the lifting start and braking, which may pull the cable and the cable socket at the hook.

[0004] The existing technology directly connects the cable to the hook through a wire rope. This connection method has high requirements for control. First of all, it is necessary to ensure the synchronization of the cable and the hook. The cable and the wire rope are both flexible connections. When the tension disappears, relaxation will occur. If the action is to be started at the same time, the control force may not be able to keep up synchronously, and the wire rope will be instantly straightened during the process. The wire rope directly transmits the impact force to the hook ear plate, causing the ear plate or the wire rope to break, thereby causing the cable to break and the cable socket to be pulled out, the hook to lose power, and the work to be interrupted. Utility Model Content

[0005] The utility model aims to provide a cable connection buffer component of a rotating hook, which can achieve pulling buffering between the rotating hook and the cable and avoid cable breakage.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A cable connection buffer assembly for a rotating hook, characterized in that it includes a cable buffer, a cable pipe clamp and a socket, the cable buffer includes a stainless steel mesh sleeve, a pull plate and a spring, the stainless steel mesh sleeve is arranged on the outside of the cable, the bottom of the stainless steel mesh sleeve is connected to the top of the pull plate through an ear sleeve, the bottom of the pull plate is connected to the top of the rotating hook through a spring buffer, the tail of the cable is connected to the rotating hook through a socket, the cable pipe clamp is arranged between the cable buffer and the socket, the bottom of the cable pipe clamp is connected to the rotating hook, and the cable limit is passed through the cable pipe clamp.

[0008] Preferably, the earmuffs are double-ring earmuffs, two groups of connection holes are symmetrically opened above the pull plate, two ends of the double-ring earmuffs are respectively connected to the two groups of connection holes, and the midpoint of the double-ring earmuffs is connected to the bottom of the stainless steel mesh sleeve.

[0009] Preferably, the springs are symmetrically arranged in at least two groups, and a plurality of connection holes are stacked below the pull plate. The top of the spring is connected to the connection hole, and the bottom of the spring is connected to the top of the rotating hook through an ear plate.

[0010] Preferably, at least two groups of steel wire ropes are symmetrically connected to both sides of the spring below the pull plate, the top of the steel wire rope is connected to the connecting hole, and the bottom of the steel wire rope is connected to the top of the rotating hook through an ear plate.

[0011] Preferably, the length of the steel wire rope when tightened is less than the maximum stroke length of the spring.

[0012] Preferably, the cable pipe clamp includes a base and a clamping seat, the clamping seat is arranged above the base, the base is installed above the clamping seat, a clamping groove is provided in the center of the clamping seat, the cable passes through the clamping groove, an annular adjustment groove is provided inside the clamping seat around the clamping groove, a plurality of groups of guide grooves distributed along a radial annular array are provided on one side of the annular adjustment groove inside the clamping seat, a clamping block is movably provided along the radial direction in each group of the guide grooves, an annular adjustment block is provided in the annular adjustment groove for limiting annular rotation, a plurality of groups of arc-shaped limiting grooves distributed in an annular array are provided in the annular adjustment block, a movable column is provided in the guide groove, the movable column is limited and movable in the arc-shaped limiting groove, a worm gear is fixedly provided on the outside of the annular adjustment block, a worm is provided in the clamping seat, the worm gear is meshed with the worm gear for transmission, and one end of the worm gear is connected to a toggle hand wheel on the outside of the clamping seat.

[0013] Preferably, the clamping seat can be rotated along the upper side of the base to adjust the clamping angle.

[0014] Preferably, each group of the clamping blocks is connected to a curved rubber pad on one side of the clamping groove, and the curved rubber pad fits the surface of the cable.

[0015] Preferably, the cable length between the stainless steel mesh sleeve and the cable pipe clamp is greater than the overall length of the earmuff and the cable buffer with the maximum stroke.

[0016] In summary, the utility model has the following beneficial effects: the cable buffer of the utility model can absorb energy through elastic deformation, play a buffering role, reduce the difficulty of controlling the synchronous lifting and lowering of the cable and the rotating hook, avoid instantaneous straightening, resulting in cable breakage and the cable socket being pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a structural schematic diagram of the utility model;

[0018] Figure 2 The utility model is a schematic diagram of the cable pipe clamp structure. DETAILED DESCRIPTION

[0019] The specific implementation manner of the present utility model is further described below in conjunction with the accompanying drawings. This embodiment does not constitute a limitation to the present utility model.

[0020] like Figure 1 and 2 The cable connection buffer assembly of a rotating hook shown in the figure includes a cable buffer 1, a cable pipe clamp 2 and a socket 3. The cable buffer 1 includes a stainless steel mesh sleeve 4, a pull plate 5 and a spring 6. The stainless steel mesh sleeve 4 is sleeved on the outside of the cable 7. The stainless steel mesh sleeve 4 increases the force-bearing area of ​​the cable 7 to ensure that the tension of the cable 7 is within the range that the cable 7 can withstand. The bottom of the stainless steel mesh sleeve 4 is connected to the top of the pull plate 5 through the ear sleeve, and the bottom of the pull plate 5 is connected to the top of the rotating hook 8 through the spring 6 for buffering. The energy is absorbed by the elastic deformation of the spring 6 to gradually reduce the tension. At the same time, the spring is pulled and stretched to always ensure the tension state of the cable, thereby reducing the difficulty of controlling the synchronous lifting and lowering of the cable 7 and the rotating hook 8. The tail of the cable 7 is connected to the rotating hook 8 through the socket 3. The cable pipe clamp 2 is arranged between the cable buffer 1 and the socket 3. The bottom of the cable pipe clamp 2 is connected to the rotating hook 8, and the cable 7 is limited to pass through the cable pipe clamp 2.

[0021] The earmuffs are double-ring earmuffs 9 , and two groups of connecting holes 10 are symmetrically opened above the pull plate 5 . The two ends of the double-ring earmuffs 9 are respectively connected to the two groups of connecting holes 10 , and the midpoint of the double-ring earmuffs 9 is connected to the bottom of the stainless steel mesh sleeve 4 .

[0022] At least two groups of springs 6 are symmetrically arranged, and a plurality of groups of connecting holes 10 are stacked below the pull plate 5 . The top of the spring 6 is connected to the connecting hole 10 , and the bottom of the spring 6 is connected to the top of the rotating hook 8 through an ear plate 12 .

[0023] At least two groups of steel wire ropes 11 are symmetrically connected to both sides of the spring 6 below the pull plate 5 . The top of the steel wire rope 11 is connected to the connecting hole 10 , and the bottom of the steel wire rope 11 is connected to the top of the rotating hook 8 through the ear plate 12 .

[0024] When the wire rope 11 is tightened, the length of 1 degree should be less than the maximum stroke length of the spring 6 to ensure that the spring 6 will not break when the wire rope 11 is in a tightened state.

[0025] The cable pipe clamp 2 includes a base 13 and a clamping seat 14, the clamping seat 14 is arranged above the base 13, the base 13 is installed above the clamping seat 14, a clamping groove 15 is provided in the center of the clamping seat 14, the cable 7 passes through the clamping groove 15, an annular adjustment groove is provided around the clamping groove 15 inside the clamping seat 14, a plurality of groups of guide grooves 16 distributed along a radial annular array are provided on one side of the annular adjustment groove inside the clamping seat 14, a clamping block 17 is movably provided in the radial direction in each group of guide grooves 16, an annular adjustment block 18 is provided in the annular adjustment groove for limiting annular rotation, and the annular adjustment block 18 is provided with a plurality of groups of arc-shaped limiting grooves 23 distributed in a circular array, and a movable column 19 is provided in the guide groove 16 of the clamping block 17, and the movable column 19 is limited and movable in the arc-shaped limiting groove 23. A worm wheel 20 is fixedly provided on the outer side of the annular adjustment block 18, and a worm 21 is provided in the clamping seat 14, and the worm 21 is meshed with the worm wheel 20 for transmission. One end of the worm 21 is connected to a toggle hand wheel 22 on the outer side of the clamping seat 14, and the annular adjustment block 18 can be driven to rotate by toggling the hand wheel 22, thereby adjusting the depth of each clamping block 17, and then clamping cables 7 of different diameters.

[0026] The clamping seat 14 can be rotated along the upper side of the base 13 to adjust the clamping angle, thereby preventing the cable 7 from being bent and stressed at the cable pipe clamp 2 .

[0027] Each set of clamping blocks 17 is connected to a curved rubber pad 24 on one side of the clamping groove 15 , and the curved rubber pad 24 fits the surface of the cable 7 .

[0028] The length of the cable 7 between the stainless steel mesh sleeve 4 and the cable pipe clamp 2 is greater than the overall length of the earmuff 9 and the cable buffer 1 with the maximum stroke, ensuring that the cable pipe clamp 2 is not subjected to stress, thereby ensuring that the socket 3 of the cable 7 is not subjected to stress, ultimately meeting the functional requirements of the design.

[0029] The cable buffer of the utility model can absorb energy through elastic deformation, play a buffering role, reduce the difficulty of controlling the synchronous lifting and lowering of the cable and the rotating hook, and avoid instantaneous straightening, which may lead to cable breakage and the cable socket being pulled out.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. A cable connection buffer assembly for a rotating hook, characterized in that: It includes a cable buffer, a cable pipe clamp and a socket. The cable buffer includes a stainless steel mesh sleeve, a pull plate and a spring. The stainless steel mesh sleeve is arranged on the outside of the cable. The bottom of the stainless steel mesh sleeve is connected to the top of the pull plate through an ear sleeve. The bottom of the pull plate is connected to the top of the rotating hook through a spring buffer. The tail of the cable is connected to the rotating hook through a socket. The cable pipe clamp is arranged between the cable buffer and the socket. The bottom of the cable pipe clamp is connected to the rotating hook. The cable limiter passes through the cable pipe clamp.

2. The cable connection buffer assembly of a rotary hook according to claim 1, characterized in that: The earmuffs are double-ring earmuffs, and two groups of connection holes are symmetrically opened above the pull plate. The two ends of the double-ring earmuffs are respectively connected to the two groups of connection holes, and the midpoint of the double-ring earmuffs is connected to the bottom of the stainless steel mesh sleeve.

3. The cable connection buffer assembly of a rotating hook according to claim 1, characterized in that: The springs are symmetrically arranged in at least two groups, and a plurality of connection holes are stacked below the pull plate. The top of the spring is connected to the connection hole, and the bottom of the spring is connected to the top of the rotating hook through an ear plate.

4. The cable connection buffer assembly of a rotating hook according to claim 1, characterized in that: At least two groups of steel wire ropes are symmetrically connected to both sides of the spring below the pull plate, the top of the steel wire rope is connected to the connecting hole, and the bottom of the steel wire rope is connected to the top of the rotating hook through an ear plate.

5. The cable connection buffer assembly of a rotary hook according to claim 4, characterized in that: The length of the steel wire rope when tightened is smaller than the maximum stroke length of the spring.

6. The cable connection buffer assembly of a rotary hook according to claim 1, characterized in that: The cable pipe clamp comprises a base and a clamping seat, the clamping seat is arranged above the base, the base is installed above the clamping seat, a clamping groove is provided in the center of the clamping seat, the cable passes through the clamping groove, an annular adjustment groove is provided around the clamping groove inside the clamping seat, a plurality of groups of guide grooves distributed along a radial annular array are provided on one side of the annular adjustment groove inside the clamping seat, a clamping block is movably provided along the radial direction in each group of the guide grooves, an annular adjustment block is provided in the annular adjustment groove for limiting annular rotation, a plurality of groups of arc-shaped limiting grooves distributed in an annular array are provided in the annular adjustment block, a movable column is provided in the guide groove, the movable column is limited and movable in the arc-shaped limiting groove, a worm wheel is fixedly provided on the outside of the annular adjustment block, a worm is provided in the clamping seat, the worm is meshed with the worm wheel for transmission, and one end of the worm is connected to a toggle hand wheel on the outside of the clamping seat.

7. The cable connection buffer assembly of a rotary hook according to claim 6, characterized in that: The clamping seat can be rotated along the upper side of the base to adjust the clamping angle.

8. The cable connection buffer assembly of a rotary hook according to claim 6, characterized in that: Each group of the clamping blocks is connected to a curved rubber pad on one side of the clamping groove, and the curved rubber pad fits the surface of the cable.

9. The cable connection buffer assembly of a rotary hook according to claim 6, characterized in that: The cable length between the stainless steel mesh sleeve and the cable pipe clamp is greater than the overall length of the ear sleeve and the cable buffer with the maximum stroke.

Images