Internal power supply grab bucket winding drum structure

Abstract

The utility model relates to an internal power supply grab bucket winding drum structure in the technical field of lifting machinery, which comprises a drum body and a hollow drum shaft for a cable to penetrate through, the outer end of the hollow drum shaft is rotatably mounted on a bearing seat, and the inner end shaft body of the hollow drum shaft is coaxially fixed with the drum body through a connecting disc. The end part and the middle part of the barrel body of the barrel body are respectively provided with a rope winding area and a wire winding area; a spacing area is arranged between the rope winding area and the wire winding area, a spiral groove used for winding a cable is formed in the outer barrel wall of the barrel corresponding to the wire winding area, a through hole allowing the cable to penetrate through is formed in the groove bottom of the ring groove section, close to the hollow barrel shaft, of the spiral groove, and a pressing plate covers the ring groove section beside the through hole; the pressing plate is detachably connected to the outer wall of the cylinder body in the corresponding interval area through a bolt, and a hand hole is formed in the disc surface of the connecting disc; the grab bucket winding drum structure can ensure that the cable is stably installed and orderly wound and unwound, and the risk of shaking and abrasion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting machinery, in particular to a grab bucket drum structure with internal power supply. Background Art

[0002] At present, the drum group of garbage grab bucket is the same as the drum group of traditional grab bucket, which only has the rope groove for lifting wire rope. The power supply of grab bucket needs to be equipped with a cable drum, which not only requires coordinated and synchronous control of retracting and releasing the cable and wire rope, but also increases the equipment cost;

[0003] A Chinese invention patent with announcement number CN108545647A discloses an integrated reel structure for cables and wire ropes. The structure provides a cable reel area in the middle of the reel, and a hand hole is provided on the wall of the cable reel area. The shaft of the reel is also provided as a hollow shaft, so that the cable can be passed through the hollow shaft and the hand hole in sequence and wound around the reel, thereby achieving an effect in which the wire rope and the cable share one reel and can be raised, lowered, and retracted synchronously. However, the defect of the prior art is that the cable reel area is provided with a smooth surface, which is not conducive to orderly winding of the cable, and the hand hole on the reel for passing the cable is relatively large, and a retaining ring is also provided, which is not conducive to limiting and fixing the cable, resulting in severe friction on the edge of the hand hole during the disorderly shaking of the cable during retraction and release, which can easily damage the cable and increase the safety hazard of lifting. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology and solve the existing technical problems, the utility model discloses an internally powered grab drum structure, which can ensure that the cable is installed firmly and retracted in an orderly manner, and avoid the risk of shaking and wear.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A grab drum structure with internal power supply comprises a drum body and a hollow drum shaft for threading a cable, the outer end of the hollow drum shaft is rotatably mounted on a bearing seat, the inner end shaft body of the hollow drum shaft is coaxially fixed to the drum body through a connecting disk, the end portion and the middle portion of the drum body are respectively configured as a rope winding area and a wire winding area; a spacing area is provided between the rope winding area and the wire winding area, a spiral groove for winding the cable is provided on the outer wall of the drum body corresponding to the wire winding area, a through hole for passing the cable is provided at the bottom of the groove section of the spiral groove close to the hollow drum shaft, a pressure plate is provided at the groove section located next to the through hole, the pressure plate is detachably connected to the outer wall of the drum body in the corresponding spacing area by bolts, and a hand hole is provided on the surface of the connecting disk.

[0007] Furthermore, one end of the pressure plate is set to correspond to the arc portion of the cable, and the other end plate surface is provided with a connecting hole corresponding to the bolt passing through, and the outer wall of the spacing area of ​​the cylinder is provided with a threaded hole corresponding to the connecting hole and adapted to the screwing of the bolt.

[0008] Furthermore, two connecting disks are arranged side by side and spaced apart axially along the hollow cylindrical shaft, and a plurality of hand holes are arranged circumferentially along the connecting disk.

[0009] Furthermore, a support rod is vertically provided on the inner cylinder wall of the cylinder body between the through hole and the hollow cylinder shaft, a rubber block is fixed to the head end of the support rod, and the rubber block is provided with a limiting hole coaxial with the inner hole of the hollow cylinder shaft and adapted for the cable to pass through.

[0010] Furthermore, the through hole and the support rod are respectively located on two corresponding sides of the hollow cylindrical shaft, a mounting hole is provided on the rubber block on the side of the limiting hole away from the support rod, and a proximity switch is installed on the hole wall of the mounting hole away from the limiting hole.

[0011] Furthermore, a slip ring bracket for mounting a conductive slip ring is fixed to the outer end of the bearing seat.

[0012] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0013] The internally powered grab drum structure disclosed by the utility model provides a spiral groove in the entire winding area of ​​the drum so that the cable can be wound in an orderly manner along the spiral groove to reduce movement and shaking. The perforations on the drum adapted for the cable to pass through and the pressure plate for pressing the cable can also limit and fix the cable to reduce friction damage. At the same time, a hand hole is opened on the connecting disk at the end of the drum to ensure the convenience of threading and repairing the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional schematic diagram of the implementation structure of the utility model;

[0015] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure of part A;

[0016] Figure 3 yes Figure 1 Schematic side view of the connection structure of the middle rubber block.

[0017] In the figure: 1. Cylinder; 101. Rope winding area; 102. Wire winding area; 103. Spacer area; 2. Hollow cylinder shaft; 3. Connecting plate; 4. Bearing seat; 5. Spiral groove; 6. Through hole; 7. Pressure plate; 8. Bolt; 9. Hand hole; 10. Slip ring bracket; 11. Support rod; 12. Rubber block; 13. Limit hole; 14. Mounting hole; 15. Proximity switch. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" and the like indicating directions or positional relationships, they are only corresponding to the drawings of the present invention, for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction: Embodiment 1:

[0019] Combined with Figure 1 and 2 The internally powered grab drum structure comprises a drum body 1 and a hollow drum shaft 2 for passing a cable, the outer end of the hollow drum shaft 2 is rotatably mounted on a bearing seat 4, and a slip ring bracket 10 for mounting a conductive slip ring is fixed to the outer end of the bearing seat 4, and the cable can be electrically connected to an external power supply device through the conductive slip ring during the rotation of the drum body 1, the inner end shaft body of the hollow drum shaft 2 is coaxially fixed to the drum body 1 through a connecting plate 3, and the end and middle part of the drum body of the drum body 1 are respectively set as a rope winding area 101 and a wire winding area 102;

[0020] A spacing area 103 is provided between the rope winding area 101 and the wire winding area 102 for separation and distinction to prevent winding disorder. A spiral groove 5 for winding the cable is provided on the outer wall of the cylinder 1 corresponding to the wire winding area 102 to ensure that the cable can be wound in an orderly manner along the spiral groove 5 to reduce movement and shaking. A through hole 6 for the cable to pass through is provided at the bottom of the groove section of the spiral groove 5 close to the hollow cylinder shaft 2. A pressure plate 7 is provided at the groove section cover next to the through hole 6. The pressure plate 7 is detachably connected to the outer wall of the cylinder 1 of the corresponding spacing area 103 by bolts 8. The cable can be limited and fixed by the through hole 6 and the pressure plate 7 to reduce friction. Damage; as needed, one end of the pressure plate 7 is set to the arc-shaped part corresponding to the cable line to increase the contact area and ensure compaction; the other end plate surface is provided with a connecting hole corresponding to the bolt 8 passing through; the outer wall of the spacing area 103 of the cylinder 1 is provided with a threaded hole corresponding to the connecting hole and adapted to the screwing of the bolt 8, and the wire rope is tightened by screwing the adjusting bolt 8; the disk surface of the connecting disk 3 is provided with a hand hole 9 to ensure the convenience of threading and repairing the cable line; as needed, the connecting disk 3 is provided with two hand holes 9 spaced side by side along the axial direction of the hollow cylinder shaft 2, and a plurality of hand holes 9 are provided along the circumference of the connecting disk 3, which is convenient for maintenance in all directions while ensuring the uniformity of rotational momentum.

[0021] The internally powered grab drum structure of the utility model can pass the cable through the inner hole of the hollow cylinder shaft 2 into the cylinder body 1, then reach the winding area 102 through the through hole 6, and be wound on the spiral groove 5, and then the cable is limited and fixed by the pressure plate 7, so that the cable reel can rotate with the cylinder body 1 to be retracted and released. The whole process is stable and does not shake, avoiding friction damage. At the same time, it is convenient for adjustment and maintenance during shutdown. The overall structure is simple, the operation is convenient, and the cost is low. Embodiment 2:

[0022] Based on the first embodiment, combined with the attached Figure 1 and 3 As shown, a support rod 11 is vertically provided on the inner cylinder wall of the cylinder body 1 between the through hole 6 and the hollow cylinder shaft 2, and a rubber block 12 is fixed to the head end of the support rod 11. The rubber block 12 is provided with a limiting hole 13 that is adapted for the cable to pass through and is coaxial with the inner hole of the hollow cylinder shaft 2. The rubber block 12 is used to limit the cable so that the cable is bent at a right angle inside the cylinder body 1, corresponding to the through hole 6 and the inner hole of the hollow cylinder shaft 2 respectively, to avoid swinging and wear during rotation; as needed, the through hole 6 and the support rod 11 are respectively located on the corresponding sides of the hollow cylinder shaft 2, and a mounting hole 14 is provided on the rubber block 12 on the side of the limiting hole 13 away from the support rod 11, and a proximity switch 15 is installed on the hole wall of the mounting hole 14 away from the limiting hole 13. When a fault occurs at the pressing point or the wiring point of the cable, causing the cable to be tightened, the proximity switch 15 can be squeezed toward the mounting hole 14, and the proximity switch 15 can signal the connection alarm to perform alarm inspection and maintenance in time.

[0023] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. An internally powered grab drum structure, comprising a drum body (1) and a hollow drum shaft (2) for threading a cable, wherein the outer end of the hollow drum shaft (2) is rotatably mounted on a bearing seat (4), the inner end shaft body of the hollow drum shaft (2) is coaxially fixed to the drum body (1) via a connecting plate (3), the drum body end and middle portion of the drum body (1) are respectively configured as a rope winding area (101) and a wire winding area (102), wherein: A spacing area (103) is provided between the rope winding area (101) and the wire winding area (102); a spiral groove (5) for winding a cable is provided on the outer wall of the cylinder (1) corresponding to the wire winding area (102); a through hole (6) for passing the cable is provided at the bottom of the groove section of the spiral groove (5) close to the hollow cylinder shaft (2); a pressure plate (7) is provided at the groove section cover next to the through hole (6); the pressure plate (7) is detachably connected to the outer wall of the cylinder (1) of the corresponding spacing area (103) by bolts (8); and a hand hole (9) is provided on the disk surface of the connecting disk (3).

2. The internally powered grab drum structure according to claim 1 is characterized in that: One end of the pressure plate (7) is provided with an arc-shaped portion corresponding to the cable, and the other end of the plate surface is provided with a connection hole corresponding to the bolt (8) passing through, and the outer wall of the spacing area (103) of the cylinder (1) is provided with a threaded hole corresponding to the connection hole and adapted to be screwed with the bolt (8).

3. The internally powered grab drum structure according to claim 1 is characterized in that: Two connecting disks (3) are arranged side by side at intervals along the axial direction of the hollow cylindrical shaft (2), and a plurality of hand holes (9) are arranged along the circumference of the connecting disk (3).

4. The internally powered grab drum structure according to claim 1 is characterized in that: A support rod (11) is vertically provided on the inner cylinder wall of the cylinder body (1) between the through hole (6) and the hollow cylinder shaft (2), a rubber block (12) is fixed to the head end of the support rod (11), and the rubber block (12) is provided with a limiting hole (13) coaxial with the inner hole of the hollow cylinder shaft (2) for the passage of an adapter cable.

5. The internally powered grab drum structure according to claim 4 is characterized in that: The through hole (6) and the support rod (11) are respectively located on two corresponding sides of the hollow cylindrical shaft (2); a mounting hole (14) is provided on the rubber block (12) on the side of the limiting hole (13) away from the support rod (11); and a proximity switch (15) is installed on the hole wall of the mounting hole (14) away from the limiting hole (13).

6. The internally powered grab drum structure according to claim 1, characterized in that: A slip ring bracket (10) for mounting a conductive slip ring is fixed to the outer end of the bearing seat (4).

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