Protective device for preventing steel wire rope of water granulated slag grab bucket from being separated from groove

Abstract

The utility model relates to a water granulated slag grab bucket steel wire rope groove-disengaging-preventing protection device, and belongs to the technical field of grab buckets. Comprising a pulley frame wall arranged on a claw bucket, a pulley is installed on the inner side of the pulley frame wall, a pulley groove is formed in the pulley and used for being connected with a steel wire rope, a pair of connecting frames is hinged to the upper end of the claw bucket, and a top plate is hinged to the ends, away from the claw bucket, of the connecting frames. A pulley block fixing plate is installed at the upper end of the pulley frame wall, and a pulley block is arranged on the pulley block fixing plate. According to the water slag grab bucket steel wire rope groove-disengaging-preventing protection device, the pulley block is additionally arranged to support and guide the steel wire rope, the steel wire rope is stably supported and guided between the limiting wheel and the pulley to be protected, the grab bucket steel wire rope is limited, the steel wire rope is prevented from disengaging from the pulley groove, the protection performance of the grab bucket steel wire rope is improved, and the groove disengaging risk is reduced; therefore, the overall protection performance is improved, and the overall later maintenance frequency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grab buckets, in particular to a slag grab bucket wire rope anti-slip groove protection device. Background Art

[0002] A grab bucket is composed of two or more openable and closable bucket-shaped jaws that are combined together to form a holding space. When loading, the jaws are closed in the material pile and the material is grabbed into the holding space. When unloading, the jaws are opened in a suspended state above the material pile and the material is scattered on the material pile. The opening and closing of the jaws are generally controlled by the wire rope of the crane lifting mechanism.

[0003] When the blast furnace is tapping iron, waste slag flows out with it. The iron slag flows into the slag flushing ditch and is washed away by high-pressure water, becoming granular to form water slag and entering the water slag pool. The water slag in the water slag pool is scooped and transported back by a grab-type double-beam crane. However, the existing water slag grab still has shortcomings: first, the existing grab uses too many wire pulleys, and no protection device is provided to prevent the wire rope from falling off. During the operation of the water slag grab, especially when opening and closing, the wire rope will return freely, and it is inevitable that it will fall out of the groove. At the same time, the wire rope collides and scrapes with the pulley frame wall, resulting in damage to the wire rope and the pulley frame wall, which makes the protection performance of the grab poor. Secondly, it will also affect the service life of the wire rope and the pulley groove, and increase the maintenance workload. Therefore, a water slag grab wire rope anti-falling groove protection device is proposed to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a slag grab bucket wire rope anti-slip groove protection device, which has the advantages of increasing service life and solves the problem of collision and scratching of the steel wire during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slag grab bucket wire rope anti-slip groove protection device, comprising a pulley frame wall arranged on a claw bucket, a pulley is installed on the inner side of the pulley frame wall, a wheel groove is provided on the pulley, and the wheel groove is used to connect the wire rope, a pair of connecting frames are hinged on the upper end of the claw bucket, and a top plate is hinged on one end of the connecting frame away from the claw bucket;

[0006] A pulley block fixing plate is installed on the upper end of the pulley frame wall, a pulley block is arranged on the pulley block fixing plate, a limiting wheel is arranged on the pulley block, a limiting groove is arranged on the limiting wheel, and the limiting groove is arranged corresponding to the wheel groove and is used for limiting the wire rope.

[0007] By adopting the above technical solution: by adding a pulley group to support and guide the wire rope, the wire rope is stably supported and guided between the limiting wheel and the pulley for protection, the grab bucket wire rope is limited, and the wire rope is restricted from escaping from the pulley groove, the protection performance of the grab bucket wire rope is improved and the risk of escaping from the groove is reduced, thereby improving the overall protection and reducing the overall frequency of later maintenance.

[0008] Furthermore, a main shaft is provided at one end of the two claw buckets close to the pulley, and the two claw buckets are rotatably connected through the main shaft, and the pulley is rotatably connected to the main shaft.

[0009] By adopting the above technical solution, the two claw buckets are supported, rotated and closed by the main shaft.

[0010] Furthermore, the pulley is an integral structure, and a plurality of wheel grooves with the same spacing are provided on the pulley, or the pulley is a plurality of coaxially arranged pulleys, and the wheel grooves are provided on each of the pulleys.

[0011] By adopting the above technical solution: two groups of pulleys of two different forms are used to realize two groups of support and limit positions for the wire rope.

[0012] Furthermore, the limiting grooves on the plurality of limiting wheels correspond laterally to the plurality of wheel grooves one by one.

[0013] By adopting the above technical solution: the steel wire rope is stably supported in sliding manner through the one-to-one corresponding wheel grooves and the limit grooves.

[0014] Furthermore, the pulley frame wall is fixedly connected to the main shaft, and the pulley frame wall is in a square shape.

[0015] By adopting the above technical solution, the pulley frame wall is fixed on the inner side of the claw bucket without affecting the rotation of the pulley.

[0016] Furthermore, one end of the claw bucket close to the connecting frame is U-shaped, the lower end of the connecting frame is hinged on the U-shaped end of the claw bucket, and a round hole for the steel wire rope to slide through is opened on the top plate.

[0017] By adopting the above technical solution: the opening and closing claw buckets are connected and supported by the connecting frames on both sides of the claw buckets.

[0018] Furthermore, there are two groups of pulley block fixing plates, and the two groups of pulley block fixing plates are symmetrically distributed on the pulley frame wall. The pulley block fixing plates include a transverse plate and a support frame. The transverse plate is fixedly connected to the upper end of the pulley frame wall, and the support frame is fixedly connected to the transverse plate.

[0019] By adopting the above technical solution: a plurality of limiting wheels are supported by the horizontal plates on both sides of the pulley frame wall to cooperate with the pulley to support the guide wire rope.

[0020] Furthermore, the support frame includes a base plate and a support plate fixedly mounted on the surface of the base plate, the end of the support plate close to the pulley is a straight surface, the end of the support plate away from the pulley is an inclined surface, the number of the support plates is several and they are evenly distributed, and the limiting wheel is installed between two of the support plates and close to one side of the pulley.

[0021] By adopting the above technical solution: a plurality of support plates are supported by the bottom plate, and the limiting wheels are rotationally supported by the plurality of support plates. The straight surface and the inclined surface of the support plate are used to support the limiting wheels and assist the limiting wire rope.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] When the slag grab bucket wire rope anti-slip groove protection device is in use, when the wire rope on the grab bucket scrapes against the pulley frame wall, it is often accompanied by slip-slip scratches and collisions. By adding a pulley block to support and guide the wire rope, the wire rope is stably supported and guided between the limiting wheel and the pulley for protection, the grab bucket wire rope is limited, and the wire rope is restricted from slipping out of the pulley groove, thereby improving the protection performance of the grab bucket wire rope and reducing the risk of slipping out of the groove, thereby improving the overall protection and reducing the overall frequency of later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a front cross-sectional view of the overall structure of the utility model;

[0026] Figure 3 It is a three-dimensional schematic diagram of the connection between the pulley block and the wheel block fixing plate structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the support structure of the utility model.

[0028] In the figure: 1, claw bucket; 2, pulley; 3, pulley frame wall; 4, pulley block; 41, limiting wheel; 42, limiting groove; 5, wire rope; 6, top plate; 7, connecting frame; 8, wheel block fixing plate; 81, cross plate; 82, support frame; 9, main shaft; 10, support member; 101, support block; 102, torsion spring; 103, mounting plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1: Please refer to Figures 1 to 2 In this embodiment, a wire rope anti-slip groove protection device for a slag grab bucket includes a pulley frame wall 3 provided on a claw bucket 1, a pulley 2 is installed on the inner side of the pulley frame wall 3, and a main shaft 9 is provided at one end of the two claw buckets 1 close to the pulley 2, and the two claw buckets 1 are rotatably connected by the main shaft 9, so that the two claw buckets 1 are rotated to close or open through the main shaft 9;

[0031] The pulley is provided with a wheel groove for connecting a steel wire rope 5. A pair of connecting frames 7 are hingedly connected to the upper end of the claw bucket 1. A top plate 6 is hingedly connected to one end of the connecting frame 7 away from the claw bucket 1. The pulley frame wall 3 is in a square shape, so that the pulley frame wall 3 is fixed to the inner side of the claw bucket 1 without affecting the rotation of the pulley 2.

[0032] The pulley 2 is an integrated structure, and a plurality of wheel grooves with the same spacing are provided on the pulley 2, or the pulleys are multiple coaxially arranged, and the wheel grooves are provided on each pulley;

[0033] A pulley block fixing plate 8 is installed at the upper end of the pulley frame wall 3, a pulley block 4 is arranged on the pulley block fixing plate 8, a limiting wheel 41 is arranged on the pulley block 4, a limiting groove 42 is arranged on the limiting wheel 41, and the limiting groove 42 is arranged corresponding to the wheel groove and is used to limit the wire rope 5;

[0034] The end of the claw bucket 1 close to the connecting frame 7 is U-shaped, and the lower end of the connecting frame 7 is hinged on the U-shaped end of the claw bucket 1. The claw bucket 1 is supported and guided by the connecting frame 7. The end of the connecting frame 7 away from the claw bucket 1 is hinged with a top plate 6, and a circular hole for the steel wire rope 5 to slide through is opened on the top plate 6, so that the steel wire rope 5 penetrating the top plate 6 can be telescopically slidable;

[0035] It should be noted that a conventional winch device can be provided on the top plate 6 to drive the wire rope 5, and to drive the lifting and lowering of the pulley 2 by retracting the wire rope 5 to control the opening and closing of the two claw buckets 1. The winch device is a conventional electrical device in the prior art, and its specific structure and working principle will not be repeated or shown in the text and figures.

[0036] See also Figure 3In this embodiment, there are two groups of pulley block fixing plates 8, and the two groups of pulley block fixing plates 8 are symmetrically distributed on the pulley frame wall 3. The pulley block fixing plates 8 include a transverse plate 81 and a support frame 82. The transverse plate 81 is fixedly connected to the upper end of the pulley frame wall 3, and the support frame 82 is fixedly connected to the transverse plate 81;

[0037] The support frame 82 includes a base plate and a support plate fixedly installed on the surface of the base plate, the end of the support plate close to the pulley 2 is a straight surface, and the end of the support plate away from the pulley 2 is an inclined surface. The number of support plates is several and they are evenly distributed. The limiting wheel 42 is installed between the two support plates and close to one side of the pulley 2. The limiting grooves 42 on several limiting wheels 41 correspond to several wheel grooves laterally one by one. The limiting grooves 42 on the limiting wheel 41 and the wheel grooves on the pulley 2 both conflict with the wire rope 5. The wire rope 5 is limited and guided by the limiting grooves 42 and wheel grooves on the pulley 2 and the limiting wheel 41 that correspond to each other.

[0038] In this embodiment, when in use, when the steel wire rope 5 on the grab bucket rubs against the pulley frame wall 3, it is often accompanied by the possibility of slipping out of the groove, scraping and collision. By adding a pulley group 4 to support and guide the steel wire rope 5, the steel wire rope 5 is stably supported and guided between the limiting wheel 41 and the pulley 2 for protection, the grab bucket steel wire rope 5 is limited, and the steel wire rope 5 is restricted from leaving the pulley groove, thereby improving the protection performance of the grab bucket steel wire rope 5 and reducing the risk of slipping out of the groove, thereby improving the overall protection and reducing the overall frequency of later maintenance.

[0039] Example 2: In order to further improve the limiting and guiding effect of the wire rope 5, please refer to Figure 4 A support member 10 for supporting the limiting wheel 41 is also provided on the transverse plate 81. The support member 10 consists of a support block 101, a torsion spring 102 and a mounting plate 103. There are two support blocks 101, and the two support blocks 101 are fixedly connected to the transverse plate 81. There are two mounting plates 103, and the two mounting plates 103 are rotatably connected to the support block 101 through a rotating shaft. The torsion spring 102 is provided between the mounting plate 103 and the support block 101. The limiting wheel 41 is rotatably or fixedly connected between the two mounting plates 103 through an axis.

[0040] In this embodiment, the support block 101 and the torsion spring 102 support the mounting plate 103, so that when the limiting wheel 41 supports the guide wire rope 5, the torque generated by the reset torsion spring 102 can drive the limiting wheel 41 on the mounting plate 103 to always be in close contact with the wire rope 41, thereby achieving a stable limiting effect.

[0041] It should be noted that the outer side of the limiting wheel 41 is coated with a wear-resistant coating to increase the wear resistance of the limiting wheel 41 when it collides with the wire rope 5, thereby increasing the service life of the limiting wheel 41.

[0042] The working principle of the above embodiment is:

[0043] When in use, the pulley block 4 is consistent with the wheel groove size of the pulley 2, so that the limiting grooves 42 on the limiting wheels 41 and the wheel grooves of the pulley 2 wrap the wire rope 5, limiting the displacement of the wire rope 5, and at the same time protecting the wire rope 5 from contacting the pulley frame wall 3, thereby improving the protection performance of the wire rope 5 and reducing the risk of it falling out of the groove.

[0044] It should be noted that although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slag grab wire rope anti-slip groove protection device, characterized in that: It comprises a pulley frame wall (3) arranged on the claw bucket (1), a pulley (2) is installed on the inner side of the pulley frame wall (3), the pulley is provided with a wheel groove, the wheel groove is used to connect the wire rope (5), the upper end of the claw bucket (1) is hinged with a pair of connecting frames (7), and the end of the connecting frame (7) away from the claw bucket (1) is hinged with a top plate (6); A pulley block fixing plate (8) is installed at the upper end of the pulley frame wall (3), a pulley block (4) is arranged on the pulley block fixing plate (8), a limiting wheel (41) is arranged on the pulley block (4), a limiting groove (42) is arranged on the limiting wheel (41), and the limiting groove (42) is arranged corresponding to the wheel groove and is used to limit the wire rope (5).

2. The device for preventing steel wire rope from falling out of a slag grab according to claim 1 is characterized in that: A main shaft (9) is provided at one end of the two claw buckets (1) close to the pulley (2), and the two claw buckets (1) are rotatably connected via the main shaft (9), and the pulley (2) is rotatably connected to the main shaft (9).

3. The device for preventing steel wire rope from falling out of a slag grab according to claim 1, characterized in that: The pulley (2) is an integral structure, and a plurality of wheel grooves with the same spacing are provided on the pulley (2); or, the pulley (2) is a plurality of coaxially arranged pulleys, and each of the pulleys (2) is provided with the wheel grooves.

4. The device for preventing steel wire rope from falling out of a slag grab according to claim 1, characterized in that: The limiting grooves (42) on the plurality of limiting wheels (41) correspond laterally to the plurality of wheel grooves one by one.

5. The device for preventing steel wire rope from falling out of groove of slag grab bucket according to claim 1, characterized in that: The pulley frame wall (3) is fixedly connected to the main shaft (9), and the pulley frame wall (3) is in a square shape.

6. The device for preventing steel wire rope from falling out of a slag grab according to claim 1, characterized in that: One end of the claw bucket (1) close to the connecting frame (7) is U-shaped, the lower end of the connecting frame (7) is hinged to the U-shaped end of the claw bucket (1), and a circular hole is provided on the top plate (6) for the steel wire rope (5) to slide through.

7. The device for preventing steel wire rope from falling out of a slag grab according to claim 1, characterized in that: The number of the pulley block fixing plates (8) is two, and the two pulley block fixing plates (8) are symmetrically distributed on the pulley frame wall (3), the pulley block fixing plates (8) include a transverse plate (81) and a support frame (82), the transverse plate (81) is fixedly connected to the upper end of the pulley frame wall (3), and the support frame (82) is fixedly connected to the transverse plate (81).

8. The device for preventing steel wire rope from falling out of a slag grab according to claim 7, characterized in that: The support frame (82) comprises a bottom plate and a support plate fixedly mounted on the surface of the bottom plate, the end of the support plate close to the pulley (2) is a straight surface, the end of the support plate away from the pulley (2) is an inclined surface, the number of the support plates is several and they are evenly distributed, and the limiting wheel (41) is mounted between two of the support plates and close to one side of the pulley (2).

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