Wire unfolding mechanism for winding cable on I-shaped cable reel

Abstract

The utility model discloses a cable unfolding mechanism for winding a cable on an I-shaped cable reel. The cable unfolding mechanism solves the problem of how to develop a cable unfolding tool which is light and convenient to use and easy to install and does not damage the cable. The I-shaped cable reel (1) is vertically placed on the ground, a bearing (3) is arranged above the central position of an upper annular side plate (13) of the I-shaped cable reel (1), and the bearing (3) is arranged above a central wire shaft of the horizontally-placed I-shaped cable reel (1) in an overhead mode through three supporting rods. A central rotating shaft (4) is fixedly connected in the inner ring of the bearing (3), a triangular cantilever frame (11) is welded on the side vertical surface of the central rotating shaft (4), and a wire guide ring (12) is arranged at the outer side end of the triangular cantilever frame (11); a cable head (16) of a cable (2) wound in the I-shaped cable reel (1) sequentially passes through the cable guide ring (12) and the fixed pulley (15) and then is unwound; and the construction efficiency of paying off is greatly improved.

Description

Technical Field

[0001] The present invention relates to an I-shaped cable reel wound with a cable, and particularly to a cable unwinding mechanism for unwinding a cable on an I-shaped cable reel. Background Art

[0002] A cable is an important electrical device for transmitting electrical signals. Before leaving the factory, for the convenience of transportation, the cable is generally wound on a spool. The cable is wound on a cable shaft of an I-shaped cable reel and is transported to the construction site after packaging. When wiring on-site, the cable needs to be unwound from the spool and laid in a cable trench. Since the I-shaped cable reel wound with the cable is large in size and heavy in weight, in order to easily unwind the cable wound on the spool for laying, one method is to horizontally support the I-shaped cable reel on a rotatable support by a bracket, and unwind the cable by rotating the I-shaped cable reel. Another method is to vertically place the I-shaped cable reel on a rotatable disk and unwind the cable on the spool by rotating the disk. However, these methods have the following problems: (1) It is necessary to set up large rotatable supports and turntables, which increases the construction cost; (2) Since the spool wound with the cable is heavy, at the initial stage of cable unwinding and dragging, a large dragging force needs to be applied, but when the dragging force is too large, it is easy to damage the inner wire core of the cable. Therefore, developing a light and easy-to-install cable unwinding tool that does not damage the cable, while reducing labor, can also improve the cable unwinding efficiency, which has become a difficult problem to be solved on-site. Summary of the Invention

[0003] The present invention provides a cable unwinding mechanism for unwinding a cable on an I-shaped cable reel, and solves the technical problem of how to develop a light and easy-to-install cable unwinding tool that does not damage the cable.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A cable spreading mechanism for winding cables on an I-shaped cable reel, including an I-shaped cable reel with cables wound around the cable shaft of the I-shaped cable reel; the I-shaped cable reel is vertically placed on the ground, and a bearing is provided above the central position of the upper annular side plate of the I-shaped cable reel. The bearing is horizontally arranged. A first support rod, a second support rod, and a third support rod are respectively welded on the outer ring of the bearing. The outer end of the first support rod is fixedly connected to the upper annular side plate through a vertical connecting first bolt. The outer end of the second support rod is fixedly connected to the upper annular side plate through a vertical connecting second bolt. The outer end of the third support rod is fixedly connected to the upper annular side plate through a vertical connecting third bolt. The three support rods suspend the bearing above the central axis of the horizontally placed I-shaped cable reel; a central rotating shaft is fixedly connected in the inner ring of the bearing, and a triangular cantilever is welded on the side vertical surface of the central rotating shaft. A wire guiding ring is provided at the outer end of the triangular cantilever; an aerial fixed pulley bracket is provided directly above the I-shaped cable reel, and a fixed pulley is suspended on the aerial fixed pulley bracket. The wire end of the cable wound in the I-shaped cable reel passes through the wire guiding ring and the fixed pulley in sequence and then spreads out the cable.

[0006] The triangular cantilever connected to the side vertical surface of the central rotating shaft is inclined downward, and the wire guiding ring at the outer end of the triangular cantilever is arranged below the outer side of the upper annular side plate; a diagonal bracing and strengthening rod is arranged inside the triangular cantilever.

[0007] A method for presenting a cable spreading mechanism for winding cables on an I-shaped cable reel, characterized by the following steps:

[0008] First step: Vertically place the I-shaped cable reel on the ground so that the cables wound on the I-shaped cable reel can be paid out and wound horizontally.

[0009] Second step: Set an aerial fixed pulley bracket directly above the I-shaped cable reel and suspend a fixed pulley on the aerial fixed pulley bracket.

[0010] Third step: After the wire end of the cable is paid out from the I-shaped cable reel, first pass it through the wire guiding ring provided at the outer end of the triangular cantilever, and then through the fixed pulley.

[0011] Fourth step: Rotate the triangular cantilever clockwise and at the same time pull the wire end. As the triangular cantilever rotates continuously, pay out the cable from the I-shaped cable reel.

[0012] If the paid-out cable needs to be rewound onto the I-shaped cable reel, it is necessary to rotate the triangular cantilever counterclockwise. As the triangular cantilever rotates counterclockwise, the paid-out cable is rewound onto the cable shaft of the I-shaped cable reel.

[0013] The present invention is simple to process, has a short installation and disassembly time, smooth operation, greatly improves the construction efficiency of cable laying, effectively overcomes the defect that the internal wire cores of the cable are easily damaged in the initial stage of cable laying, and has a low manufacturing cost. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present invention;

[0015] Figure 2 is a connection relationship diagram of the bearing 3 and the upper annular side plate 13 of the present invention;

[0016] Figure 3 is a schematic structural diagram of the present invention in the front view direction. Detailed Description of the Invention

[0017] The present invention will be described in detail below with reference to the drawings:

[0018] A cable laying-out mechanism for winding a cable on an I-shaped cable reel, comprising an I-shaped cable reel 1, in which a cable 2 is wound; the I-shaped cable reel 1 is vertically placed on the ground, and a bearing 3 is provided above the central position of the upper annular side plate 13 of the I-shaped cable reel 1. The bearing 3 is horizontally arranged. On the outer ring of the bearing 3, a first support rod 5, a second support rod 7 and a third support rod 9 are respectively welded. The outer end of the first support rod 5 is fixedly connected to the upper annular side plate 13 through a vertical connecting first bolt 6. The outer end of the second support rod 7 is fixedly connected to the upper annular side plate 13 through a vertical connecting second bolt 8. The outer end of the third support rod 9 is fixedly connected to the upper annular side plate 13 through a vertical connecting third bolt 10. The three support rods can be made of angle steel, and the bearing 3 is erected above the center axis of the horizontally placed I-shaped cable reel 1; a central rotating shaft 4 is fixedly connected in the inner ring of the bearing 3, and the central rotating shaft 4 can rotate freely. A triangular cantilever 11 is welded on the side surface of the central rotating shaft 4, and a wire guiding ring 12 is provided at the outer end of the triangular cantilever 11; an aerial fixed pulley bracket 14 is provided directly above the I-shaped cable reel 1, and a fixed pulley 15 is suspended on the aerial fixed pulley bracket 14. The wire end 16 of the cable 2 wound in the I-shaped cable reel 1 passes through the wire guiding ring 12 and the fixed pulley 15 in sequence and then is laid out; by pushing the triangular cantilever 11, the central rotating shaft 4 can rotate freely, so that the wire guiding ring 12 makes a circular motion around the I-shaped cable reel 1, and the cable 2 wound in the I-shaped cable reel 1 is laid out.

[0019] The triangular cantilever 11 connected to the side elevation of the central rotating shaft 4 slopes downward, and the wire loop 12 at the outer end of the triangular cantilever 11 is arranged below the outer side of the upper annular side plate 13, so that the released cable 2 will not rub against the upper annular side plate 13, protecting the cable 2 from being damaged; an inclined strut reinforcing rod 17 is arranged inside the triangular cantilever 11 to strengthen the strength of the triangular cantilever 11.

[0020] The first support rod 5, the second support rod 7, the third support rod 9, the bearing 3 and the central rotating shaft 4 form a whole. After the cable 2 wound on the I-shaped cable reel 1 is completely unreeled, it can be removed as a whole and installed on a new I-shaped cable reel for reuse.

[0021] A method for presenting a cable unreeling mechanism for a cable wound on an I-shaped cable reel, characterized by the following steps:

[0022] First step: Vertically place the I-shaped cable reel 1 on the ground so that the cable 2 wound on the I-shaped cable reel 1 can be unreeled and wound in the horizontal direction.

[0023] Second step: Set up an aerial fixed pulley bracket 14 directly above the I-shaped cable reel 1 and hang a fixed pulley 15 on the aerial fixed pulley bracket 14.

[0024] Third step: After the end 16 of the cable 2 is released from the I-shaped cable reel 1, first pass through the wire loop 12 arranged at the outer end of the triangular cantilever 11, and then pass through the fixed pulley 15.

[0025] Fourth step: Rotate the triangular cantilever 11 clockwise and at the same time pull the end 16. As the triangular cantilever 11 rotates continuously, the cable 2 is released from the I-shaped cable reel 1.

[0026] If the released cable 2 needs to be rewound onto the I-shaped cable reel 1, it is necessary to rotate the triangular cantilever 11 counterclockwise. As the triangular cantilever 11 rotates counterclockwise, the released cable 2 is rewound onto the spool of the I-shaped cable reel 1.

Claims

1. A cable unwinding mechanism for winding a cable on an I-shaped cable drum, comprising an I-shaped cable drum (1), a cable (2) being wound on a cable shaft of the I-shaped cable drum (1); characterized in that: The I-shaped cable drum (1) is placed vertically on the ground. A bearing (3) is arranged above the central position of an upper annular side plate (13) of the I-shaped cable drum (1). The bearing (3) is arranged in the horizontal direction. A first support rod (5), a second support rod (7) and a third support rod (9) are respectively welded on the outer ring of the bearing (3). The outer end of the first support rod (5) is fixedly connected to the upper annular side plate (13) by a vertically connected first bolt (6). The outer end of the second support rod (7) is fixedly connected to the upper annular side plate (13) by a vertically connected second bolt (8). The outer end of the third support rod (9) is fixedly connected to the upper annular side plate (13) by a vertically connected third bolt (10). On the side plate (13), three support rods are used to suspend the bearing (3) above the central axis of the horizontally placed I-shaped cable drum (1); a central rotating shaft (4) is fixedly connected in the inner ring of the bearing (3); a triangular cantilever frame (11) is welded and connected to the side elevation of the central rotating shaft (4); a wire ring (12) is arranged at the outer end of the triangular cantilever frame (11); an aerial fixed pulley bracket (14) is arranged directly above the I-shaped cable drum (1), and a fixed pulley (15) is suspended on the aerial fixed pulley bracket (14); the wire ends (16) of the cables (2) wound in the I-shaped cable drum (1) are sequentially passed through the wire ring (12) and the fixed pulley (15) and then unrolled and released.

2. The cable unwinding mechanism for winding a cable on an I-shaped cable drum according to claim 1, characterized in that: The triangular cantilever frame (11) connected to the side elevation of the central rotation axis (4) is inclined downward, and the wire ring (12) at the outer end of the triangular cantilever frame (11) is arranged below the outer side of the upper annular side plate (13); and a diagonal bracing reinforcing rod (17) is arranged inside the triangular cantilever frame (11).

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