Winding drum for double-beam crane

Abstract

The utility model discloses a winding drum for a double-beam crane, which comprises a winding drum, bearing seats and a rope pressing roller, the winding drum is mounted on the two bearing seats through a rotating shaft, screws are fixed at the tops of the two bearing seats, an adjusting plate is arranged at the end parts of the two screws in a penetrating manner, and the adjusting plate is fixed by matching with adjusting nuts arranged on the top surface and the bottom surface of the adjusting plate; a long-strip-shaped hole is formed in the adjusting plate, a rope pressing roller support is fixedly connected through a bolt penetrating through the long-strip-shaped hole, a rope pressing roller is rotationally connected to the rope pressing roller support, and a gap exists between the rope pressing roller and the surface of the winding drum. The rope skipping device solves the problem of rope skipping winding during emergency braking of an existing steel wire rope reel, and is good in using effect, simple in structure and widely applicable to various types of steel wire rope reels at present.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a reel for a double-beam crane. Background Art

[0002] Chinese utility model patent CN201821370345.6 discloses a reel for a double-beam crane, comprising a reel body, a support, and a brake. The reel body is mounted on the support via a rotating shaft, and drum edges are provided at both ends of the reel body. A brake is fixedly mounted on the upper end of the support, and the brake is located outside the drum edge. The utility model can perform emergency locking in the event of a failure of the reel brake system to prevent the suspended heavy objects from falling rapidly and causing personal and property losses.

[0003] Although the above-mentioned drum solves the braking problem in emergency situations and improves the safety of the wire rope drum, it still has the following disadvantages: although a rope groove is provided on the surface of the drum, the wire rope will jump suddenly during emergency braking, causing the wire rope to run out of the original rope groove and enter other rope grooves, thereby causing entanglement and knotting, affecting the normal use of the crane. Moreover, this phenomenon changes with the weight of the suspended object, and the heavier it is, the more obvious it is. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model discloses a drum for a double-beam crane which can overcome the entanglement and knotting of wire ropes.

[0005] The technical solutions adopted for this purpose are as follows:

[0006] A drum for a double-beam crane comprises a drum, a bearing seat and a rope-pressing roller, wherein the drum is mounted on two bearing seats via a rotating shaft, screws are fixed on the tops of the two bearing seats, adjusting plates are passed through the ends of the two screws, and the adjusting plates are fixed by cooperating with adjusting nuts arranged on the top and bottom surfaces of the adjusting plates; an elongated hole is opened on the adjusting plate, and a rope-pressing roller bracket is fixedly connected by bolts passing through the elongated hole, and a rope-pressing roller is rotatably connected to the rope-pressing roller bracket, and there is a gap between the rope-pressing roller and the surface of the drum.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The utility model solves the problem of rope entanglement caused by the existing wire rope drum during emergency braking, has good use effect, simple structure and is widely applicable to various types of wire rope drums at present. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] In the figure, 1-reel, 2-bearing seat, 3-rope pressing roller, 4-rotating shaft, 5-screw, 6-adjusting plate, 7-rope pressing roller bracket, 8-rope groove, 9-adjusting nut. DETAILED DESCRIPTION

[0011] The utility model is further explained below in conjunction with the accompanying drawings.

[0012] like Figure 1 As shown, a drum for a double-beam crane comprises a drum 1, a bearing seat 2 and a rope pressing roller 3. A rope groove 8 is spirally arranged on the surface of the drum 1, and a steel wire rope is wound in the rope groove 8. The drum 1 is installed on two bearing seats 2 through a rotating shaft 4. Screws 5 are fixed on the tops of the two bearing seats 2. Two adjusting nuts 9 are screwed on the ends of the two screws 5 respectively. An adjusting plate 6 is arranged between the two adjusting nuts 9. A long hole is opened on the adjusting plate 6. A rope pressing roller bracket 7 is fixedly connected to the adjusting plate 6 by bolts passing through the long hole. The rope pressing roller 3 is rotatably connected to the rope pressing roller bracket 7. The rope pressing roller 3 maintains a certain gap with the surface of the drum 1, and the gap does not exceed 1.5 times the diameter of the steel wire rope wound on the drum 1.

[0013] When in use, the gap between the rope pressing roller 3 and the surface of the drum 1 is adjusted by the screw rod 5 and the adjusting nut 9 to ensure that the gap does not exceed 1.5 times the diameter of the wire rope wound on the drum 1 to ensure that the wire rope will not jump out of the rope groove; taking increasing the gap as an example, loosen the adjusting nut on the top of the adjusting plate 6, rotate the adjusting nut at the bottom of the adjusting plate 6, and push the adjusting plate 6 to move upward, so as to increase the gap between the rope pressing roller 3 and the drum 1, and vice versa, just change the rotation order of the adjusting nut; then adjust the lateral position of the rope pressing roller 3 through the long hole on the adjusting plate 6 to ensure that the rope pressing roller 3 can cover most of the rope groove 8 without interfering with the winding of the wire rope. After the above adjustments are completed, it can be put into use.

[0014] The rest of the undescribed parts, such as the reel brake device, are the same as those described in CN201821370345.6.

[0015] The utility model solves the problem of rope entanglement caused by the existing wire rope drum during emergency braking, has good use effect, simple structure and is widely applicable to various types of wire rope drums at present.

Claims

1. A drum for a double-beam crane, characterized in that: The invention comprises a winding drum (1), a bearing seat (2) and a rope pressing roller (3), wherein the winding drum (1) is mounted on two bearing seats (2) via a rotating shaft (4), screw rods (5) are fixed on the tops of the two bearing seats (2), adjustment plates (6) are passed through the ends of the two screw rods (5), and the adjustment plates are fixed by cooperating with adjustment nuts (9) arranged on the top and bottom surfaces of the adjustment plates (6); an elongated hole is opened on the adjustment plate (6), and the rope pressing roller bracket (7) is fixedly connected by bolts passing through the elongated hole; the rope pressing roller (3) is rotatably connected to the rope pressing roller bracket (7), and there is a gap between the rope pressing roller (3) and the surface of the winding drum (1).

2. A drum for a double-beam crane as claimed in claim 1, characterized in that: The surface of the drum (1) is spirally provided with a rope groove (8).

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