Anti-unhooking safety device for auxiliary equipment of crown block system of steel plant

Abstract

The utility model belongs to the technical field of unhooking prevention, and particularly relates to an unhooking prevention safety device of auxiliary equipment of a steel plant crown block system, which comprises a steel wire rope, an upper disc, a lower disc and a hook body on a steel plant crown block, a stable connecting mechanism is arranged between the steel wire rope and the upper disc, and the top of the hook body is fixedly connected with a lower rotary disc. And the top of the lower rotating disc is fixedly connected with a rotating column. The lifting hook is reasonable in structural design, damage to the hook body and a lifted object caused by impact force generated by shaking of a heavy object or sudden starting and stopping in the lifting process can be reduced through the rubber pad, when the lifted object is hung in the hook body, the transverse plate is pressed downwards through the anti-unhooking mechanism, the anti-falling plate deflects downwards to block the opening of the hook body, and therefore the lifting hook is prevented from falling off. And when the rotating column is broken during long-time use, the lower rotating disc can be pulled upwards through the four ropes, so that the hook body is effectively prevented from falling off, and the use is safer.

Description

Technical Field

[0001] This utility model relates to the field of anti-disengagement technology, and in particular to an anti-disengagement safety device for auxiliary equipment of overhead crane system in steel plants. Background Technology

[0002] The hook body of the anti-disengagement safety device is one of its core components. It is typically made of high-strength alloy steel, a material with excellent toughness and wear resistance, capable of withstanding the enormous pulling forces generated when overhead cranes in steel mills lift heavy objects. The shape design of the hook body is crucial; the shape of its opening must match the lifting lugs or slings of the object being lifted to ensure a secure hold. For example, for common round lifting lugs, the hook body opening will have a certain curvature to conform to the shape of the lug.

[0003] However, the anti-disengagement safety devices for auxiliary equipment of steel plant overhead crane systems in related technologies still have shortcomings. During hoisting, the load is prone to falling off the hook and being damaged. At the same time, the safety is poor, and after long-term use, the rotating column connected to the hook is prone to breakage. There is no anti-falling mechanism. Once the breakage occurs, the load and the hook will fall directly and be damaged, resulting in poor safety. Therefore, we propose an anti-disengagement safety device for auxiliary equipment of steel plant overhead crane systems to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned shortcomings and propose an anti-disengagement safety device for auxiliary equipment of overhead crane system in steel plants.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A safety device for preventing disengagement from an auxiliary equipment of a steel plant overhead crane system includes a wire rope, an upper disc, a lower disc, and a hook body on the steel plant overhead crane. A stable connection mechanism is provided between the wire rope and the upper disc. A lower turntable is fixedly connected to the top of the hook body. A rotating column is fixedly connected to the top of the lower turntable. A rotating hole is opened on the top of the lower disc. The rotating column is movably fitted into the rotating hole. The top of the rotating column is fixedly connected to the upper turntable. The lower disc movably abuts against the upper and lower turntables. An anti-disengagement mechanism is provided on the hook body. An anti-falling mechanism is provided between the upper disc, the lower disc, and the lower turntable.

[0007] As a preferred embodiment of this utility model, the stabilizing connection mechanism includes a connecting plate fixedly connected to the bottom end of the wire rope. The connecting plate and the top of the upper disc are each provided with four insertion holes. A screw is movably inserted into each insertion hole. A fastening nut is threaded on the outer side of the screw. All four fastening nuts are movably abutting against the bottom of the upper disc.

[0008] As a preferred embodiment of this utility model, the top and bottom of the lower disc are provided with annular grooves, and the upper and lower discs are rotatably connected to a number of balls on the side that are close to each other, with the balls rolling in the corresponding annular grooves respectively.

[0009] As a preferred embodiment of this invention, the upper and lower discs are fixedly connected by four connecting rods.

[0010] As a preferred embodiment of this utility model, the anti-detachment mechanism includes two ear plates fixedly connected to the inner wall of one side of the hook body. The two ear plates are rotatably connected to the same rotating shaft on the side that is close to each other. An anti-detachment plate is fixedly sleeved on the outer side of the rotating shaft. A horizontal plate is fixedly connected to one side of the anti-detachment plate. Torsion springs are fixedly connected to both the front and rear sides of the anti-detachment plate. The ends of the two torsion springs that are far apart from each other are respectively fixedly connected to the inner side of the corresponding ear plates. A rubber pad is fixedly connected inside the hook body.

[0011] As a preferred embodiment of this invention, both torsion springs are sleeved on the outer side of the rotating shaft.

[0012] As a preferred embodiment of this utility model, the anti-fall mechanism includes four upper connecting ears, which are respectively fixedly connected to the outer periphery of the upper disc. A rope is fixedly connected to each upper connecting ear, and one end of the rope is fixedly connected to a lower connecting ear. A slider is fixedly connected to one side of the lower connecting ear. A groove is provided on the outer side of the lower disc, and the four sliders are respectively slidably fitted into the corresponding grooves.

[0013] As a preferred embodiment of this utility model, the bottom of the lower disc is fixedly connected to eight support plates, and the same guide wheel is rotatably connected between two adjacent support plates, with four ropes respectively wrapped around the outside of the corresponding guide wheel.

[0014] In this utility model, an anti-disengagement safety device for an auxiliary equipment of a steel plant overhead crane system is described. Through the setting of a connecting plate, four screws and four fastening nuts, the upper disc can be firmly fixed to the bottom end of the wire rope, so that the wire rope of the overhead crane is firmly connected to the hook body. Through the setting of the upper turntable, rotating column, rotating hole and lower turntable, rotation can be performed, thereby adjusting the angle of the hook body so that the suspended object can be hung on the hook body, improving the use efficiency. Through the rotation of the annular groove and the ball, the rotating column, upper turntable and lower turntable rotate more smoothly and steadily.

[0015] In this utility model, the anti-disengagement safety device for the auxiliary equipment of the overhead crane system in a steel plant, through the use of rubber pads, can reduce the damage to the hook body and the hoisted object caused by the impact force generated by the swaying of the heavy object or sudden start / stop during hoisting. When the object is hung in the hook body, the object first presses down on the horizontal plate, causing the horizontal plate and the anti-disengagement plate to deflect downwards, thereby causing the inclined surface of the anti-disengagement plate to abut against the inclined surface of the hook body, thus blocking the opening of the hook body and preventing the object from falling off, thus improving the anti-disengagement effect. When the rotating column breaks after long-term use, the lower turntable can be pulled upwards through the four ropes, effectively preventing the lower turntable and hook body from falling off, making the use safer.

[0016] This utility model has a reasonable structural design. The rubber pad reduces the impact force on the hook and the object being hoisted during hoisting caused by the swaying of the heavy object or sudden start / stop. The anti-detachment mechanism presses down the horizontal plate when the object is placed inside the hook, and the anti-detachment plate deflects downward to block the opening of the hook, preventing the object from falling off. If the rotating column breaks after long-term use, the four ropes can pull the lower turntable upward, effectively preventing the lower turntable and hook from falling off, making it safer to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anti-disengagement safety device for auxiliary equipment of a steel plant overhead crane system proposed in this utility model;

[0018] Figure 2 This is a partial sectional view of an anti-disengagement safety device for an auxiliary equipment of a steel plant overhead crane system proposed in this utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0020] Figure 4 This is a perspective view of the anti-disengagement mechanism of an anti-disengagement safety device for an auxiliary equipment of a steel plant overhead crane system proposed in this utility model.

[0021] In the diagram: 1. Steel wire rope; 2. Upper disc; 3. Connecting rod; 4. Lower disc; 5. Hook body; 51. Rubber pad; 6. Upper turntable; 61. Lower turntable; 62. Rotating column; 63. Annular groove; 64. Ball bearing; 65. Rotating hole; 7. Secure connection mechanism; 71. Fastening nut; 72. Connecting plate; 73. Screw; 8. Anti-disengagement mechanism; 81. Ear plate; 82. Rotating shaft; 83. Torsion spring; 84. Horizontal plate; 85. Anti-disengagement plate; 9. Anti-falling mechanism; 91. Upper connecting ear; 92. Rope; 93. Support plate; 94. Guide wheel; 95. Slide groove; 96. Sliding block; 97. Lower connecting ear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-4 A safety device for preventing disengagement of an auxiliary equipment in a steel plant overhead crane system includes a wire rope 1, an upper disc 2, a lower disc 4, and a hook body 5 on the steel plant overhead crane. A stable connection mechanism 7 is provided between the wire rope 1 and the upper disc 2. A lower turntable 61 is fixedly connected to the top of the hook body 5. A rotating column 62 is fixedly connected to the top of the lower turntable 61. A rotating hole 65 is opened on the top of the lower disc 4. The rotating column 62 is movably fitted into the rotating hole 65. The top of the rotating column 62 is fixedly connected to the upper turntable 6. The lower disc 4 movably abuts against the upper turntable 6 and the lower turntable 61. An anti-disengagement mechanism 8 is provided on the hook body 5. An anti-falling mechanism 9 is provided between the upper disc 2, the lower disc 4, and the lower turntable 61.

[0024] Furthermore, refer to Figure 1 and Figure 2 As shown, the stabilizing connection mechanism 7 includes a connecting plate 72 fixedly connected to the bottom end of the wire rope 1. The connecting plate 72 and the top of the upper disc 2 are both provided with four insertion holes. A screw 73 is movably inserted into the insertion holes. A fastening nut 71 is threaded on the outside of the screw 73. All four fastening nuts 71 are movably abutting against the bottom of the upper disc 2.

[0025] By adopting the above solution, the upper disc 2 can be securely fixed to the bottom end of the wire rope 1 by setting the connecting plate 72, four screws 73 and four fastening nuts 71, so that the wire rope 1 of the crane and the hook body 5 are securely connected together.

[0026] Furthermore, the top and bottom of the lower disc 4 are provided with annular grooves 63, and several balls 64 are rotatably connected to the sides of the upper disc 6 and the lower disc 61 that are close to each other. The balls 64 are respectively connected to the corresponding annular grooves 63. Through the rotation of the annular grooves 63 and the balls 64, the rotating column 62, the upper disc 6 and the lower disc 61 rotate more smoothly and steadily.

[0027] Furthermore, four connecting rods 3 are fixedly connected to the upper disk 2 and the lower disk 4, which facilitates the connection and fixation between the upper and lower disks.

[0028] Furthermore, refer to Figure 1 and Figure 4As shown, the anti-detachment mechanism 8 includes two ear plates 81 fixedly connected to the inner wall of one side of the hook body 5. The two ear plates 81 are rotatably connected to the same rotating shaft 82 on the side that is close to each other. An anti-detachment plate 85 is fixedly sleeved on the outer side of the rotating shaft 82. A horizontal plate 84 is fixedly connected to one side of the anti-detachment plate 85. Torsion springs 83 are fixedly connected to both the front and rear sides of the anti-detachment plate 85. The ends of the two torsion springs 83 that are far apart from each other are respectively fixedly connected to the inner side of the corresponding ear plate 81. A rubber pad 51 is fixedly connected inside the hook body 5. Both torsion springs 83 are sleeved on the outer side of the rotating shaft 82.

[0029] The above solution involves the following steps: When the load is placed inside the hook body 5, the load first presses down on the horizontal plate 84, causing the horizontal plate 84 and the anti-detachment plate 85 to deflect downwards. This causes the inclined surface of the anti-detachment plate 85 to abut against the inclined surface of the hook body 5, thereby blocking the opening of the hook body 5 and preventing the load from falling off. This improves the anti-detachment effect. The rubber pad 51 reduces the impact force on the hook body and the load being lifted during the lifting process caused by the shaking of the load or sudden start / stop.

[0030] Furthermore, refer to Figure 1-3 As shown, the anti-fall mechanism 9 includes four upper connecting ears 91, which are fixedly connected to the outer periphery of the upper disc 2. A rope 92 is fixedly connected to the upper connecting ears 91, and one end of the rope 92 is fixedly connected to a lower connecting ear 97. A slider 96 is fixedly connected to one side of the lower connecting ear 97. A groove 95 is provided on the outer side of the lower turntable 61, and the four sliders 96 are slidably fitted into the corresponding grooves 95.

[0031] The above solution allows for the following: when the rotating column 62 breaks after prolonged use, the lower turntable 61 can be pulled upwards by the four ropes 92, effectively preventing the lower turntable 61 and hook 5 from falling, thus making it safer to use.

[0032] Furthermore, eight support plates 93 are fixedly connected to the bottom of the lower disc 4, and the same guide wheel 94 is rotatably connected between two adjacent support plates 93. Four ropes 92 are respectively wrapped around the outside of the corresponding guide wheel 94 to facilitate the guidance and limiting of the ropes 92, making their movement more stable.

[0033] In this invention, during use, the connecting plate 72, four screws 73, and four fastening nuts 71 securely fix the upper disc 2 to the bottom end of the wire rope 1, thus firmly connecting the wire rope 1 of the crane to the hook body 5. The upper turntable 6, rotating column 62, rotating hole 65, and lower turntable 61 allow for rotation, enabling adjustment of the angle of the hook body 5 to hang the load, improving efficiency. The rotation of the annular groove 63 and ball bearings 64 ensures smoother and more stable rotation of the rotating column 62, upper turntable 6, and lower turntable 61. The rubber pad 51 reduces [unspecified impact / damage]. During hoisting, the impact force generated by the swaying of the heavy object or sudden start / stop may damage the hook and the object being hoisted. When the object is placed inside the hook 5, it first presses down on the horizontal plate 84, causing the horizontal plate 84 and the anti-detachment plate 85 to deflect downwards. This allows the inclined surface of the anti-detachment plate 85 to abut against the inclined surface of the hook 5, thus blocking the opening of the hook 5 and preventing the object from falling off. This improves the anti-detachment effect. When the rotating column 62 breaks after prolonged use, the lower turntable 61 can be pulled upwards by the four ropes 92, effectively preventing the lower turntable 61 and the hook 5 from falling off, making it safer to use.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safety device for preventing unhooking in auxiliary equipment of a steel plant overhead crane system, characterized in that, The system includes a wire rope (1), an upper disc (2), a lower disc (4), and a hook (5) on a steel plant overhead crane. A stable connection mechanism (7) is provided between the wire rope (1) and the upper disc (2). A lower turntable (61) is fixedly connected to the top of the hook (5). A rotating column (62) is fixedly connected to the top of the lower turntable (61). A rotating hole (65) is provided on the top of the lower disc (4). The rotating column (62) is movably fitted into the rotating hole (65). An upper turntable (6) is fixedly connected to the top of the rotating column (62). The lower disc (4) movably abuts between the upper turntable (6) and the lower turntable (61). An anti-disengagement mechanism (8) is provided on the hook (5). An anti-falling mechanism (9) is provided between the upper disc (2), the lower disc (4), and the lower turntable (61).

2. The anti-disengagement safety device for auxiliary equipment of a steel plant overhead crane system according to claim 1, characterized in that, The stabilizing connection mechanism (7) includes a connecting plate (72) fixedly connected to the bottom end of the wire rope (1). The connecting plate (72) and the top of the upper disc (2) are provided with four insertion holes. A screw (73) is movably inserted into the insertion hole. A fastening nut (71) is threaded on the outer side of the screw (73). The four fastening nuts (71) are movably abutting against the bottom of the upper disc (2).

3. The anti-disengagement safety device for auxiliary equipment of a steel plant overhead crane system according to claim 1, characterized in that, The top and bottom of the lower disc (4) are provided with annular grooves (63). The upper disc (6) and the lower disc (61) are rotatably connected to each other on the side that are close to each other. The balls (64) are respectively connected to the corresponding annular grooves (63).

4. The anti-disengagement safety device for auxiliary equipment of a steel plant overhead crane system according to claim 1, characterized in that, The upper disk (2) and the lower disk (4) are fixedly connected by four connecting rods (3).

5. The anti-disengagement safety device for auxiliary equipment of a steel plant overhead crane system according to claim 1, characterized in that, The anti-detachment mechanism (8) includes two ear plates (81) fixedly connected to the inner wall of one side of the hook body (5). The two ear plates (81) are rotatably connected to the same rotating shaft (82) on the side that is close to each other. An anti-detachment plate (85) is fixedly sleeved on the outside of the rotating shaft (82). A horizontal plate (84) is fixedly connected to one side of the anti-detachment plate (85). Torsion springs (83) are fixedly connected to the front and rear sides of the anti-detachment plate (85). The ends of the two torsion springs (83) that are far apart from each other are respectively fixedly connected to the inner side of the corresponding ear plate (81). A rubber pad (51) is fixedly connected inside the hook body (5).

6. The anti-disengagement safety device for auxiliary equipment of a steel plant overhead crane system according to claim 5, characterized in that, Both torsion springs (83) are sleeved on the outside of the rotating shaft (82).

7. The anti-disengagement safety device for auxiliary equipment of a steel plant overhead crane system according to claim 1, characterized in that, The anti-fall mechanism (9) includes four upper connecting ears (91), which are fixedly connected to the outer periphery of the upper disc (2). A rope (92) is fixedly connected to the upper connecting ear (91), and a lower connecting ear (97) is fixedly connected to one end of the rope (92). A slider (96) is fixedly connected to one side of the lower connecting ear (97). A groove (95) is provided on the outer side of the lower turntable (61), and the four sliders (96) are slidably fitted into the corresponding grooves (95).

8. The anti-disengagement safety device for auxiliary equipment of a steel plant overhead crane system according to claim 7, characterized in that, The bottom of the lower disc (4) is fixedly connected to eight support plates (93), and the same guide wheel (94) is rotatably connected between two adjacent support plates (93). Four ropes (92) are respectively wrapped around the outside of the corresponding guide wheel (94).

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