Novel grab bucket rope blocking device of double-beam bridge type crane

Abstract

The utility model discloses a novel double-beam bridge type crane grab bucket rope blocking device which comprises a bucket body, an upper bearing beam, a lower bearing beam, a supporting rod, an upper pulley block, a lower pulley block, a supporting rope and an opening and closing rope, the upper bearing beam and the lower bearing beam are divided into an upper bearing beam and a lower bearing beam, the upper pulley block and the lower pulley block are assembled on the upper bearing beam and the lower bearing beam respectively, and the opening and closing rope capable of driving the bucket body to be opened and closed is arranged between the upper pulley block and the lower pulley block. According to the novel grab bucket rope blocking device of the double-beam bridge type crane, an opening and closing rope is limited through the main eccentric wheel and the auxiliary eccentric wheel, friction of the opening and closing rope is reduced, and the opening and closing rope deflects under the action of the rotating part by means of eccentricity generated by the main eccentric wheel and the auxiliary eccentric wheel in the tensioning process; the friction stress point of the opening and closing rope and the force in the rope winding and unwinding direction both act on the main eccentric wheel and are always the same as the rotation direction of the main eccentric wheel, so that friction is reduced, the service life of the opening and closing rope is prolonged, the effect of restraining the opening and closing rope is achieved, and the use scene of a larger opening and closing rope bending angle is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of grab crane technical field, specifically a new type double-beam bridge crane grab rope stop device. BACKGROUND

[0002] Grab crane is a kind of automatic material taking machine, its grabbing and unloading material action is by ship unloader driver control, without auxiliary personnel, thus avoid the heavy labor of worker, save auxiliary work time, greatly improve the efficiency of loading and unloading, grab crane is generally divided into bridge type grab crane, portal type grab crane, folding arm type grab crane, usually people often say grab crane refers to the folding arm type grab crane.

[0003] Grab crane is generally connected by support rope and open-close rope, support rope is used for the lifting of grab, open-close rope is used for controlling the opening and closing of grab, steel wire rope produces stress torsion in compliance state, so that grab is angled, grab is in the process of grabbing material, material is not flat, but is in the shape of undulating hill, thus in the process of grab grabbing material, a certain angle is generated, open-close rope occurs torsion and the phenomenon of contact with beam, not only limit the inclination of grab, but also cause the loss of open-close rope, for this, the prior art is technically improved. UTILITARIAN CONTENT

[0004] The utility model aims at providing a new type double-beam bridge crane grab rope stop device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A new type double-beam bridge crane grab rope stop device, including bucket body, upper and lower beam, support rod, upper and lower pulley block, support rope and open-close rope, the upper and lower beam is divided into upper beam and lower beam, upper and lower beam is respectively equipped with upper and lower pulley block, open-close rope capable of driving bucket body opening and closing is arranged between upper and lower pulley block, support rope is installed on the top of upper beam, bucket body is connected with upper beam through support rod, the upper beam is provided with wire port for open-close rope wiring, wire port is internally installed with rope stopper;

[0007] The rope stopper mainly includes mounting part, rotating part and rope sliding part, the upper beam is installed with rotating part through mounting part, and the rope sliding part is rotatably installed in the rotating part;

[0008] The rope sliding part includes wire wheel frame, main eccentric wheel and auxiliary eccentric wheel, the main eccentric wheel and the auxiliary eccentric wheel are rotatably installed in the wire wheel frame, and the tangent point of the main eccentric wheel and the auxiliary eccentric wheel deviates from the center of the wheel frame, in the process of open-close rope tightening, the wire wheel frame is driven to rotate, so that the stress direction of open-close rope is consistent with the rotating direction of main eccentric wheel, and the friction loss is reduced.

[0009] As a further scheme of the utility model: the installation component includes pressure disc, clamp jaw, inlay block, inlay groove and bite bolt, the upper bearing beam is provided with inlay groove, clamp jaw is divided into left and right two embrace rings, two embrace rings are locked through bite bolt, the bottom of pressure disc and the outside of clamp jaw are provided with inlay block compatible with inlay groove, clamp jaw is locked through bite bolt, clamp jaw is put into the inside of upper bearing beam, inlay block is inlayed with inlay groove, and pressure disc is fixed with upper bearing beam through pressure bolt.

[0010] As a further scheme of the utility model: the rotating component is double-row tapered roller bearing, and the outer side of the double-row tapered roller bearing is provided with a ring groove, and the inner side of the clamp jaw is provided with a limiting ring, when the two embrace rings of the clamp jaw are fixed, the limiting ring fixes the double-row tapered roller bearing through the ring groove.

[0011] As a further scheme of the utility model: the top and bottom of the sliding rope component are respectively provided with upper locking piece and lower locking piece, and the upper locking piece and the lower locking piece limit the wire reel frame in the inside of the double-row tapered roller bearing through locking bolt.

[0012] As a further scheme of the utility model: the top of the upper locking piece is provided with a wire groove, the inside of the lower locking piece is open, and the upper locking piece rotates together with the rotating component of the double-row tapered roller bearing.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The novel double-beam bridge crane grab rope stopping device limits the opening and closing rope through the main eccentric wheel and the auxiliary eccentric wheel, reduces the friction of the opening and closing rope, utilizes the eccentricity generated by the main eccentric wheel and the auxiliary eccentric wheel in the tensioning process, and the friction receiving point of the opening and closing rope and the direction force when the rope is retracted are all applied to the main eccentric wheel under the action of the rotating component, and the rotating direction of the main eccentric wheel is always the same, so that the friction is reduced, the service life of the opening and closing rope is prolonged, the effect of restraining the opening and closing rope is achieved, and a larger opening and closing rope bending angle use scene is met. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of a novel double-beam bridge crane grab rope stopping device;

[0016] Fig. 2 It is a structural schematic view of a rope stopper in a novel double-beam bridge crane grab rope stopping device;

[0017] Fig. 3 It is a structural schematic view of a wire reel frame in a novel double-beam bridge crane grab rope stopping device;

[0018] Fig. 4It is a structure front view of a new type double-beam bridge crane grab rope stopping device middle line wheel frame;

[0019] Fig. 5 It is a structure exploded view of a new type double-beam bridge crane grab rope stopping device middle rope stopper;

[0020] Fig. 6 It is an opening and closing rope bending schematic view of a new type double-beam bridge crane grab rope stopping device.

[0021] In the figure: 1, upper and lower bearing beams; 2, support rods; 3, upper and lower pulley blocks; 4, support ropes; 5, opening and closing ropes; 6, upper locking plates; 7, main eccentric wheels; 8, auxiliary eccentric wheels; 9, line wheel frames; 10, lower locking plates; 11, pressure plates; 12, double-row tapered roller bearings; 13, compression bolts; 14, locking bolts; 15, ring grooves; 16, embedded blocks; 17, embedded grooves; 18, engagement bolts; 19, clamping jaws. DETAILED DESCRIPTION

[0022] Please refer to Figs. 1-6 In the embodiment of the utility model, a new type double-beam bridge crane grab rope stopping device includes a bucket body, upper and lower bearing beams 1, support rods 2, upper and lower pulley blocks 3, support ropes 4 and opening and closing ropes 5, the upper and lower bearing beams 1 are divided into upper and lower bearing beams, the upper and lower bearing beams 1 are respectively provided with upper and lower pulley blocks 3, the upper and lower pulley blocks 3 are provided with opening and closing ropes 5 capable of driving the bucket body to open and close, the support ropes 4 are installed at the top of the upper bearing beam, the bucket body is connected with the upper bearing beam through the support rods 2, the upper bearing beam is provided with a wire port for the opening and closing ropes 5 to pass through, and the wire port is internally provided with a rope stopper;

[0023] The rope stopper mainly includes a mounting part, a rotating part and a rope sliding part, the upper bearing beam is installed with the rotating part through the mounting part, and the rope sliding part is rotatably installed in the rotating part;

[0024] The sliding rope component includes a wire reel frame 9, a main eccentric wheel 7 and an auxiliary eccentric wheel 8, the main eccentric wheel 7 and the auxiliary eccentric wheel 8 are rotatably installed inside the wire reel frame 9, the tangent point of the main eccentric wheel 7 and the auxiliary eccentric wheel 8 deviates from the center of the wire reel frame 9, and the wire reel frame 9 is rotated and driven in the process of tightening the opening and closing rope 5, so that the stress direction of the opening and closing rope 5 is consistent with the rotation direction of the main eccentric wheel 7, the friction loss is reduced, and the main eccentric wheel 7 and the auxiliary eccentric wheel 8 are provided with ring grooves with diameters matched with the opening and closing rope 5, when the grab bucket falls on the undulating material, the grab bucket can be tilted under the action of its own gravity and stretch and twist the opening and closing rope 5, so that the opening and closing rope 5 is bent, in the process of closing the grab bucket by pulling the opening and closing rope 5 through the upper and lower pulley groups 3, the opening and closing rope 5 is tightened between the main eccentric wheel 7 and the auxiliary eccentric wheel 8, the opening and closing rope 5 is straightened to the shortest stroke in the tightening process, the main eccentric wheel 7 and the auxiliary eccentric wheel 8 are turned in the process of the opening and closing rope 5 being stressed, so that the contraction direction of the opening and closing rope 5 is automatically adjusted to be consistent with the rotation direction of the main eccentric wheel 7, which greatly reduces the wear of the opening and closing rope 5 in the process of opening and closing, can adapt to multiple friction angles, and effectively improves the service life and safety of the opening and closing rope 5.

[0025] In a preferred embodiment, the mounting component includes a pressure plate 11, a clamping jaw 19, an embedded block 16, an embedded groove 17 and a clamping bolt 18, the embedded groove 17 is arranged on the upper bearing beam, the clamping jaw 19 is divided into left and right two clamping rings, the two clamping rings are locked by the clamping bolt 18, the bottom of the pressure plate 11 and the outer side of the clamping jaw 19 are provided with embedded blocks 16 matched with the embedded groove 17, the clamping jaw 19 is locked by the clamping bolt 18, the clamping jaw 19 is placed inside the upper bearing beam, the embedded blocks 16 are embedded with the embedded groove 17, the pressure plate 11 fixes the pressure plate 11, the clamping jaw 19 and the upper bearing beam by the clamping bolt 13, the main eccentric wheel 7 and the auxiliary eccentric wheel 8 are mounted on the upper and lower bearing beams 1 by the mounting component, since the main eccentric wheel 7, the auxiliary eccentric wheel 8 and the rotating component are all consumable components, the disassembly and replacement process is facilitated, the clamping jaw 19 is used to fix the internal rotating component, the embedded block 16 and the embedded groove 17 are matched to better help the positioning of the clamping jaw 19, and the pressure plate 11 stably fixes the clamping jaw 19 inside.

[0026] In a preferred embodiment, the rotating component is a double-row tapered roller bearing 12, the outer side of the double-row tapered roller bearing 12 is provided with a ring groove 15, the inner side of the clamping jaw 19 is provided with a limiting ring, when the two ring clamps of the clamping jaw 19 are fixed, the limiting ring fixes the double-row tapered roller bearing 12 through the ring groove 15, the split ring clamps constitute the clamping jaw 19, under the action of the clamping bolt 18, the clamping jaw 19 is clamped and fixed, the double-row tapered roller bearing 12 is limited, the tapered roller bearing mainly bears the radial and axial combined load, the bearing load capacity depends on the raceway angle of the outer ring, the larger the angle, the greater the load capacity, which is suitable for the application, in the bending and tensioning process of the opening and closing rope 5, the bearing bears the radial load, prevents the outer ring from being separated, and ensures the stability of the equipment.

[0027] In a preferred embodiment, the top and bottom of the sliding rope component are respectively provided with an upper locking piece 6 and a lower locking piece 10, the upper locking piece 6 and the lower locking piece 10 limit the wire reel frame 9 in the inner part of the double-row tapered roller bearing 12 through the locking bolt 14, the wire reel frame 9 is also limited by the upper locking piece 6 and the lower locking piece 10, a large amount of dust will be generated when the grab bucket grabs the material, the working environment is complex, there is a gap between the wire reel frame 9 and the double-row tapered roller bearing 12, and the dust entering will accelerate the wear of this part, therefore, the upper locking piece 6 and the lower locking piece 10 are added to carry out dustproof treatment, and the effect of reducing the entry of dust is also achieved.

[0028] In a preferred embodiment, the top of the upper locking piece 6 is provided with a wire groove, and the inside of the lower locking piece 10 is open, the upper locking piece 6 rotates with the rotating component of the double-row tapered roller bearing 12, the inner and outer rings of the double-row tapered roller bearing 12 are respectively installed in the installation process, the outer ring is fixed, the upper locking piece 6 is fixed on the rotatable inner ring component of the double-row tapered roller bearing 12 through the locking bolt 14, and the wire groove and the opening are set according to the maximum bending angle of the opening and closing rope 5.

[0029] It should be noted that the above embodiments all belong to the same utility model concept, the description of each embodiment has its own emphasis, and the description not fully described in individual embodiments can be referred to the description in other embodiments.

[0030] The above-described embodiments only express the implementation of the utility model, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A novel double-beam bridge crane grab rope stopping device, comprising a bucket body, upper and lower supporting beams (1), a supporting rod (2), upper and lower pulley blocks (3), a supporting rope (4) and an opening and closing rope (5), the upper and lower supporting beams (1) are divided into upper and lower supporting beams, and the upper and lower supporting beams (1) are respectively provided with upper and lower pulley blocks (3), the opening and closing rope (5) capable of driving the opening and closing of the bucket body is arranged between the upper and lower pulley blocks (3), the supporting rope (4) is installed at the top of the upper supporting beam, and the bucket body and the upper supporting beam are connected through the supporting rod (2), characterized in that, The upper beam is provided with a wire port for opening and closing the rope (5) wire, and a rope stopper is installed inside the wire port. The rope stopper mainly comprises a mounting component, a rotating component and a rope sliding component, the upper beam is installed with the rotating component through the mounting component, and the rope sliding component is rotatably installed inside the rotating component. The rope sliding component comprises a wire reel frame (9), a main eccentric wheel (7) and an auxiliary eccentric wheel (8), the main eccentric wheel (7) and the auxiliary eccentric wheel (8) are rotatably installed inside the wire reel frame (9), the tangent point of the main eccentric wheel (7) and the auxiliary eccentric wheel (8) deviates from the center of the reel frame (9), and the wire reel frame (9) is rotated and rotated during the tightening of the opening and closing rope (5), so that the stress direction of the opening and closing rope (5) is consistent with the rotating direction of the main eccentric wheel (7), and the friction loss is reduced.

2. A novel double beam bridge crane grab rope stopping device according to claim 1, characterized in that, The mounting component comprises a pressure plate (11), a clamping jaw (19), an embedded block (16), an embedded groove (17) and a clamping bolt (18), the upper beam is provided with the embedded groove (17), the clamping jaw (19) is divided into left and right two clamping rings, the two clamping rings are locked by the clamping bolt (18), the bottom of the pressure plate (11) and the outer side of the clamping jaw (19) are provided with the embedded block (16) matched with the embedded groove (17), the clamping jaw (19) is locked with the rotating component by the clamping bolt (18), the clamping jaw (19) is put into the inside of the upper beam, the embedded block (16) is embedded with the embedded groove (17), and the pressure plate (11) is fixed with the upper beam by the clamping bolt (13).

3. A novel double-beam bridge crane grab rope stopping device according to claim 2, characterized in that, The rotating component is a double-row tapered roller bearing (12), the outer side of the double-row tapered roller bearing (12) is provided with a ring groove (15), the inner side of the clamping jaw (19) is provided with a limiting ring, and when the two clamping rings of the clamping jaw (19) are fixed, the limiting ring fixes the double-row tapered roller bearing (12) through the ring groove (15).

4. A novel double-beam bridge crane grab rope stopping device according to any one of claims 1-3, characterized in that, The top and bottom of the rope sliding component are respectively provided with an upper locking plate (6) and a lower locking plate (10), the upper locking plate (6) and the lower locking plate (10) limit the wire reel frame (9) in the inside of the double-row tapered roller bearing (12) through the locking bolt (14).

5. A novel double-beam bridge crane grab rope stopping device according to claim 4, characterized in that, The top of the upper locking plate (6) is provided with a wire groove, the inside of the lower locking plate (10) is an opening, and the upper locking plate (6) rotates with the rotating component of the double-row tapered roller bearing (12).

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