Steel wire rope unloading device

Abstract

The utility model relates to the technical field of hoisting auxiliary equipment, in particular to a steel wire rope unloading device which comprises a sleeve, an upper through hole and a lower through hole are formed in the upper end and the lower end of the sleeve respectively, an upper rotating column and a lower rotating column are installed in the sleeve respectively, an upper end cover is arranged at the upper end of the sleeve, and a lower end cover is arranged at the lower end of the sleeve. An upper connecting piece is arranged at the upper end of the upper end cover, a lower connecting piece is arranged at the lower end of the lower end cover, an upper connecting column is arranged between the upper rotating column and the upper end cover, and a lower connecting column is arranged between the lower rotating column and the lower end cover. In the process of hoisting an object, the lower rotating column can rotate in the sleeve to remove torsion of the multiple steel wire ropes, the situation that the steel wire ropes are mutually wound and damaged is avoided, the service life of the steel wire ropes is guaranteed, and due to the fact that the upper rotating column and the sleeve are rotationally connected, when the object is heavy, the sleeve can also rotate to remove the torsion.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting auxiliary equipment, in particular to a wire rope unloader. Background Art

[0002] Lifting devices are indispensable tools in industrial production and construction, often used to lift and move heavy objects. Traditional lifting devices typically use multiple steel wire ropes to provide greater load capacity and stability. However, the multiple steel wire rope lifting equipment used in existing technologies has some significant problems and limitations:

[0003] 1. Wire rope torsion: During the lifting process, the rotation of the object will cause the wire rope to be subjected to torsion. If this torsion force is not released in time, it will lead to uneven stress distribution between the steel wire layers inside the wire rope, thereby accelerating the wear and fatigue of the wire rope.

[0004] 2. Wire ropes are entangled with each other: Multiple wire ropes are prone to entanglement under uneven force or improper operation, which not only affects the lifting efficiency, but may also cause damage or breakage of the wire ropes, increasing the risk of operation.

[0005] 3. Reduced wire rope service life: Due to the aforementioned torsion and winding issues, the service life of the wire rope will be significantly reduced. Frequent replacement of wire ropes not only increases maintenance costs, but may also cause operation interruptions and affect project progress. Utility Model Content

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a wire rope unloader. In the process of lifting an object, due to the offset of the center of gravity of the object or the imbalance of the torque, the object rotates continuously during the lifting process. As the object rotates, multiple wire ropes will be driven to rotate. Since multiple wire ropes are installed on the lower connecting member, the lower rotating column will rotate inside the sleeve to unload the torsional force of the multiple wire ropes, avoid the multiple wire ropes from being entangled with each other, causing damage to the wire ropes, and ensure the service life of the wire ropes. Since the upper rotating column and the sleeve are rotatably connected, the sleeve can also rotate to unload the force when the object is heavier.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A wire rope unloader comprises a sleeve, wherein an upper through hole and a lower through hole are respectively provided at the upper and lower ends of the sleeve, an upper rotating column and a lower rotating column are respectively installed in the sleeve, an upper end cover is provided at the upper end of the sleeve, a lower end cover is provided at the lower end of the sleeve, an upper connecting piece is provided at the upper end of the upper end cover, a lower connecting piece is provided at the lower end of the lower end cover, an upper connecting column is provided between the upper rotating column and the upper end cover, and a lower connecting column is provided between the lower rotating column and the lower end cover.

[0009] Preferably, the diameter of the upper connecting column is smaller than the diameter of the upper through hole, the diameter of the upper rotating column is larger than the diameter of the upper through hole and smaller than the inner diameter of the sleeve, the diameter of the lower connecting column is smaller than the diameter of the lower through hole, the diameter of the lower rotating column is larger than the diameter of the lower through hole and smaller than the inner diameter of the sleeve, the diameter of the upper end cover is larger than the diameter of the upper through hole, and the diameter of the lower end cover is larger than the diameter of the lower through hole.

[0010] Preferably, both the upper connecting member and the lower connecting member are provided with connecting holes.

[0011] Preferably, there is a gap between the upper rotating column and the lower rotating column.

[0012] Preferably, the upper connecting column and the lower connecting column are respectively provided with a first bearing, and a plurality of rotating balls are circumferentially arranged on the first bearing provided on the upper connecting column. The rotating balls pass through the two end faces of the first bearing and respectively abut against the sleeve and the upper rotating column. The rotating balls on the first bearing matching the lower connecting column pass through its two end faces and respectively abut against the sleeve and the lower rotating column.

[0013] Preferably, a second bearing is installed in the middle of the upper rotating column and the lower rotating column respectively, and a plurality of rotating balls are arranged in an array on the circumferential outer side surface of the second bearing, and the rotating balls on the second bearing are in contact with the inner wall of the sleeve.

[0014] Preferably, the sleeve includes an upper sleeve and a lower sleeve, the upper sleeve and the lower sleeve are detachably connected, the upper connecting column and the upper end cover are detachably connected, and the lower connecting column and the lower end cover are detachably connected.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model has a simple structure. In the process of lifting an object, the object will rotate continuously due to the offset of the center of gravity of the object or the imbalance of the torque. As the object rotates, multiple steel ropes will be driven to rotate. Since multiple steel ropes are installed on the lower connecting piece, the lower rotating column will rotate inside the sleeve to unload the torsional force of the multiple steel ropes, avoid the multiple steel ropes from being entangled with each other, causing damage to the steel ropes, and ensure the service life of the steel ropes. Since the upper rotating column and the sleeve are rotatably connected, the sleeve can also rotate to unload the force when the object is heavy.

[0017] 2. When the device is lifting objects, the rotating ball on the first bearing at the bottom of the sleeve can abut against the bottom of the second rotating column and the sleeve, and the rotating ball on the first bearing at the top of the sleeve can abut against the top of the first rotating column and the sleeve. The rotating balls on the two first bearings can effectively reduce the friction between the first rotating column and the second rotating column and the sleeve, further improving the force unloading effect of the device on the wire rope and avoiding damage to the wire rope.

[0018] 3. The device can abut against the inner wall of the sleeve through the second bearings respectively provided on the first rotating column and the second rotating column, and cooperate with the first bearing to ensure that the first rotating column and the second rotating column are both vertically downward, avoiding the bottom end of the first rotating column or the top end of the second rotating column from contacting the sleeve, causing damage to the sleeve or the first rotating column and the second rotating column. At the same time, it can also ensure that the first bearing is evenly stressed, avoiding damage to the first bearing, and further improving the service life of the device.

[0019] 4. The upper sleeve and the lower sleeve of the device are connected in a detachable manner, and the upper connecting column and the upper end cover, as well as the lower connecting column and the lower end cover are detachable. This makes it easy to open and disassemble the device for maintenance or replacement after long-term use. When the device is damaged during use, the components of the device can be quickly replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 for Figure 2 A magnified view of the local structure.

[0023] In the figure: 1. sleeve; 2. upper connecting piece; 3. lower connecting piece; 4. first bearing; 5. second bearing; 6. upper rotating column; 7. upper through hole; 8. lower through hole; 9. upper connecting column; 10. lower connecting column; 11. upper end cover; 12. lower end cover; 13. lower rotating column; 14. rotating bead. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] A wire rope unloader, the structure of which is as follows Figure 1-Figure 3 As shown, it includes a sleeve 1, and an upper through hole 7 and a lower through hole 8 are respectively opened at the upper and lower ends of the sleeve 1. An upper rotating column 6 and a lower rotating column 13 are respectively installed in the sleeve 1. The upper end of the sleeve 1 is provided with an upper end cover 11, and the lower end of the sleeve 1 is provided with a lower end cover 12. The upper end of the upper end cover 11 is provided with an upper connecting member 2, and the lower end of the lower end cover 12 is provided with a lower connecting member 3. An upper connecting column 9 is provided between the upper rotating column 6 and the upper end cover 11, and a lower connecting column 10 is provided between the lower rotating column 13 and the lower end cover 12.

[0027] When the lifting object needs to be lifted, the upper connecting member 2 is connected to the hook, and multiple steel ropes are installed on the lower connecting member 3, and the free ends of the multiple steel ropes are fixed to the objects to be lifted. When the hook moves upward, the device can pull the steel rope up, thereby lifting the object at the bottom end of the steel rope. During the lifting of the object, due to the offset of the center of gravity of the object or the imbalance of torque, the object rotates continuously during the lifting process. Due to the rotation of the object, it will drive multiple steel ropes to rotate. Since multiple steel ropes are installed on the lower connecting member 3, the lower rotating column 13 will rotate inside the sleeve 1 to unload the torsional force of multiple steel ropes, avoid the multiple steel ropes from being entangled with each other, resulting in damage to the steel ropes, and ensure the service life of the steel ropes. Since the upper rotating column 6 and the sleeve 1 are rotatably connected, when the object is heavy, the sleeve 1 can also rotate to unload force, thereby improving the practicality of the device.

[0028] The diameter of the upper connecting column 9 is smaller than the diameter of the upper through hole 7, the diameter of the upper rotating column 6 is larger than the diameter of the upper through hole 7 and smaller than the inner diameter of the sleeve 1, the diameter of the lower connecting column 10 is smaller than the diameter of the lower through hole 8, the diameter of the lower rotating column 13 is larger than the diameter of the lower through hole 8 and smaller than the inner diameter of the sleeve 1, the diameter of the upper end cover 11 is larger than the diameter of the upper through hole 7, and the diameter of the lower end cover 12 is larger than the diameter of the lower through hole 8.

[0029] Ensure that the upper rotating column 6 and the lower rotating column 13 can rotate normally inside the sleeve 1. Since the diameters of the upper rotating column 6 and the lower rotating column 13 are respectively larger than the diameters of the upper through hole 7 and the lower through hole 8, and the diameters of the upper end cover 11 and the lower end cover 12 are respectively larger than the diameters of the upper through hole 7 and the lower through hole 8, the upper rotating column 6 and the lower rotating column 13 can be limited to prevent the upper rotating column 6 and the lower rotating column 13 from approaching each other. At the same time, the upper end cover 11 and the lower end cover 12 can prevent external contaminants from entering the interior of the sleeve 1 through the upper through hole 7 or the lower through hole 8, thereby affecting the device.

[0030] Connecting holes are provided on the upper connecting member 2 and the lower connecting member 3. Through the provided connecting holes, the upper connecting member 2 can be installed on the hook, and the connecting holes of the lower connecting member 3 are convenient for installing multiple steel ropes on the lower connecting member 3.

[0031] There is a gap between the upper rotating column 6 and the lower rotating column 13. The gap can avoid contact between the upper rotating column 6 and the lower rotating column 13, thereby reducing the friction between the upper rotating column 6 and the lower rotating column 13.

[0032] The upper connecting column 9 and the lower connecting column 10 are respectively provided with a first bearing 4. The first bearing 4 provided on the upper connecting column 9 is circumferentially provided with a plurality of rotating balls 14. The rotating balls 14 pass through the two end surfaces of the first bearing 4 and respectively abut against the sleeve 1 and the upper rotating column 6. The rotating balls 14 on the first bearing 4 matched with the lower connecting column 10 pass through its two end surfaces and respectively abut against the sleeve 1 and the lower rotating column 13.

[0033] When lifting objects, the rotating ball 14 on the first bearing 4 at the bottom of the sleeve 1 can abut against the bottom of the second rotating column and the sleeve 1, and the rotating ball 14 on the first bearing 4 at the top of the sleeve 1 can abut against the top of the first rotating column and the sleeve 1. The rotating balls 14 on the two first bearings 4 can effectively reduce the friction between the first rotating column and the second rotating column and the sleeve 1, further improving the unloading effect of the device on the wire rope and avoiding damage to the wire rope.

[0034] The middle of the upper rotating column 6 and the lower rotating column 13 are respectively installed with a second bearing 5, and a plurality of rotating balls 14 are arranged in an array on the circumferential outer side surface of the second bearing 5. The rotating balls 14 on the second bearing 5 are in contact with the inner wall of the sleeve 1.

[0035] The second bearings 5 respectively provided on the first rotating column and the second rotating column can abut against the inner wall of the sleeve 1 and cooperate with the first bearing 4 to ensure that the first rotating column and the second rotating column are both vertically downward, avoiding the bottom end of the first rotating column or the top end of the second rotating column from contacting with the sleeve 1, causing damage to the sleeve 1 or the first rotating column and the second rotating column. At the same time, it can also ensure that the first bearing 4 is evenly stressed, avoiding damage to the first bearing 4, and further improving the service life of the device.

[0036] Example 2

[0037] Based on Example 1, the sleeve 1 includes an upper sleeve 1 and a lower sleeve 1, a detachable connection between the upper sleeve 1 and the lower sleeve 1, a detachable connection between the upper connecting column 9 and the upper end cover 11, and a detachable connection between the lower connecting column 10 and the lower end cover 12.

[0038] The upper sleeve 1 and the lower sleeve 1 are connected in a detachable manner, and the upper connecting column 9 and the upper end cover 11, and the lower connecting column 10 and the lower end cover 12 are detachably connected, so that the device can be opened and disassembled for maintenance or replacement after long-term use. When the device is damaged during use, the components of the device can be quickly replaced.

[0039] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes, additions, subtractions, or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A wire rope unloader, comprising a sleeve (1), wherein the sleeve (1) is provided with an upper through hole (7) and a lower through hole (8) at the upper and lower ends thereof, characterized in that: An upper rotating column (6) and a lower rotating column (13) are respectively installed in the sleeve (1); an upper end cover (11) is provided at the upper end of the sleeve (1); a lower end cover (12) is provided at the lower end of the sleeve (1); an upper connecting piece (2) is provided at the upper end of the upper end cover (11); a lower connecting piece (3) is provided at the lower end of the lower end cover (12); an upper connecting column (9) is provided between the upper rotating column (6) and the upper end cover (11); and a lower connecting column (10) is provided between the lower rotating column (13) and the lower end cover (12).

2. A wire rope force unloader according to claim 1, characterized in that: The diameter of the upper connecting column (9) is smaller than the diameter of the upper through hole (7), the diameter of the upper rotating column (6) is larger than the diameter of the upper through hole (7) and smaller than the inner diameter of the sleeve (1), the diameter of the lower connecting column (10) is smaller than the diameter of the lower through hole (8), the diameter of the lower rotating column (13) is larger than the diameter of the lower through hole (8) and smaller than the inner diameter of the sleeve (1), the diameter of the upper end cover (11) is larger than the diameter of the upper through hole (7), and the diameter of the lower end cover (12) is larger than the diameter of the lower through hole (8).

3. A wire rope force unloader according to claim 1, characterized in that: The upper connecting piece (2) and the lower connecting piece (3) are both provided with connecting holes.

4. A wire rope force unloader according to claim 1, characterized in that: There is a gap between the upper rotating column (6) and the lower rotating column (13).

5. A wire rope force unloader according to claim 1, characterized in that: The upper connecting column (9) and the lower connecting column (10) are respectively provided with a first bearing (4). The first bearing (4) provided on the upper connecting column (9) is provided with a plurality of rotating balls (14) circumferentially. The rotating balls (14) pass through the two end faces of the first bearing (4) and respectively abut against the sleeve (1) and the upper rotating column (6). The rotating balls (14) on the first bearing (4) matched with the lower connecting column (10) pass through its two end faces and respectively abut against the sleeve (1) and the lower rotating column (13).

6. A wire rope force unloader according to claim 1, characterized in that: A second bearing (5) is installed in the middle of the upper rotating column (6) and the lower rotating column (13), respectively. A plurality of rotating balls (14) are arranged in an array on the circumferential outer side surface of the second bearing (5). The rotating balls (14) on the second bearing (5) are in contact with the inner wall of the sleeve (1).

7. A wire rope force unloader according to claim 1, characterized in that: The sleeve (1) comprises an upper sleeve (1) and a lower sleeve (1), the upper sleeve (1) and the lower sleeve (1) are detachably connected, the upper connecting column (9) and the upper end cover (11) are detachably connected, and the lower connecting column (10) and the lower end cover (12) are detachably connected.

Images