Anti-rotation device for ingot discharge lifting hook of crown block

Abstract

The utility model discloses an anti-rotation device for an ingot discharge lifting hook of a crown block, which comprises a lifting hook support frame, a lock pin mechanism and a lifting hook connecting shaft, a fixed disc is fixedly arranged at the upper end of the lifting hook connecting shaft, the fixed disc is positioned below the lock pin mechanism, the fixed disc and the lifting hook connecting shaft are concentric and coaxial, and the lock pin mechanism is positioned below the fixed disc. The diameter of the fixing disc is larger than that of the lifting hook connecting shaft, a plurality of disc bolt holes are evenly formed in the fixing disc, a plurality of lock pin bolt holes are evenly formed in the lower end of the lock pin mechanism, and the hole diameter of the lock pin bolt holes is matched with the hole diameter of the disc bolt holes. The fixed disc is fixedly arranged at the upper end of the lifting hook connecting shaft and is in bolt connection with the lock pin mechanism, so that the rotating phenomenon of the ingot discharging lifting hook of the crown block is effectively prevented, the occurrence rate of safety accidents is reduced, the production efficiency of lifting work is improved, the ingot discharging time is effectively shortened after the ingot discharging lifting hook is used, and the production cost is reduced. The up-down stability of the discharged ingot is guaranteed, and the stability of crown block hoisting equipment is guaranteed.

Description

Technical Field

[0001] The utility model discloses an anti-rotation device, in particular to an anti-rotation device for a crane ingot hook, belonging to the technical field of mechanical hoisting. Background Art

[0002] In recent years, with my country's large-scale infrastructure investment and rapid advancement of industrialization, the output and consumption of the aluminum profile industry have grown rapidly, and my country has become the world's largest aluminum profile production base and consumer market. In particular, the demand for industrial aluminum profiles in the fields of automobile manufacturing, rail transportation, construction, aerospace, etc. is still in short supply.

[0003] At present, the 35-ton overhead crane on site needs to use hydraulic flat ingot clamps and vertical hydraulic hoists. The hydraulic flat ingot flip clamp uses hydraulic power as the power source, and uses the oil cylinder as the actuator to push the clamp legs of the hoist to move horizontally. After the pair of jaws of the hoist contact the side surface of the clamped object, a certain positive pressure is generated. The friction force derived from the positive pressure can be used to lift the flat ingot in a vertical state, and the ingot can be turned over and loaded through horizontal transverse movement. The 50-ton overhead crane hook required for the production of flat ingots is connected to the hydraulic clamp to realize automatic support and clamping of the flat ingot through hydraulic control, and then the hoisting and laying operations are carried out. At present, when operating the ingot, the hook often cannot achieve balanced loading due to gravity problems, and the clamping position of the hook will rotate, which greatly affects the efficiency of the ingot and easily causes safety hazards.

[0004] At present, production technicians have the following problems when taking out ingots:

[0005] 1. After the ingot is clamped and raised to a certain height, the ingot may deviate or rotate, which may cause it to accidentally touch other ingots and cause them to fall unbalanced.

[0006] 2. If the hook clamping position rotates uncontrollably when the ingot is being unloaded, it may easily cause the wires to become entangled, leading to breakage and power outage.

[0007] 3. After clamping the flat ingot, it may be necessary to move it forward or backward or left or right according to the actual production situation. If the clamping position of the hook rotates uncontrollably, it will affect the on-site lifting operation and reduce labor efficiency. Utility Model Content

[0008] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide an anti-rotation device for the hook of an overhead crane ingot. By fixing a fixed disc on the upper end of the hook connecting shaft, the fixed disc is bolted to the locking pin mechanism, which can effectively prevent the anti-rotation phenomenon of the hook of the overhead crane ingot, thereby reducing the incidence of safety accidents and improving the lifting production efficiency.

[0009] The technical solutions adopted by the utility model to solve the technical problems are as follows:

[0010] A device for preventing a hook of an overhead crane from rotating when it is unloaded from an ingot comprises a hook support frame, a locking pin mechanism and a hook connecting shaft, wherein a fixed disc is fixedly arranged at the upper end of the hook connecting shaft, the fixed disc is located below the locking pin mechanism, the fixed disc is concentric and coaxial with the hook connecting shaft, the diameter of the fixed disc is larger than the diameter of the hook connecting shaft, a plurality of disc bolt holes are evenly arranged on the fixed disc, a plurality of locking pin bolt holes are evenly arranged at the lower end of the locking pin mechanism, and the aperture of the locking pin bolt hole matches the aperture of the disc bolt hole.

[0011] A connecting device is arranged in the locking pin bolt hole and the disc bolt hole. The connecting device is a high-strength bolt rod, or a "⊥"-shaped connecting device.

[0012] The “⊥”-shaped connecting device comprises a vertical screw rod provided with external threads and a horizontal rotating handle, which are vertically welded together.

[0013] The number of the locking pin bolt holes and the disc bolt holes are both 4, and a connecting device is arranged in each hole.

[0014] The locking pin mechanism is connected to the fixed disc via a connecting device to prevent the hook connecting shaft from rotating back and forth.

[0015] The positive beneficial effects of the utility model are:

[0016] 1. The utility model is provided with a fixed disc at the upper end of the hook connecting shaft, and the fixed disc is connected with the locking pin mechanism by bolts, which can effectively prevent the occurrence of the anti-rotation phenomenon of the overhead crane ingot hook, thereby reducing the occurrence rate of safety accidents and improving the production efficiency of the hoisting work.

[0017] 2. After use, the utility model effectively reduces the time of ingot removal, ensures the up and down stability of the ingot removal, ensures the stability of the overhead crane hoisting equipment, saves unnecessary time, and effectively controls safety hazards, which not only reduces the incidence of safety accidents but also improves production efficiency.

[0018] 3. The utility model effectively solves the problem that the existing hydraulic clamps may accidentally collide during ingot removal and fail to accurately place the ingot in the designated position, thereby effectively shortening the ingot removal time and avoiding the corresponding safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the description of the present invention. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other corresponding drawings can be obtained based on these drawings without creative work. By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more obvious:

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 for Figure 1 The middle connecting device is a schematic diagram of the structure of a bolt rod;

[0022] Figure 3 Another structural schematic diagram of the utility model;

[0023] Figure 4 for Figure 3 The connecting device in the middle is a "⊥"-shaped structural schematic diagram. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0025] Example 1: See Figure 1 and Figure 2 A device for preventing the hook of an overhead crane from rotating, comprises a hook support frame 1, a locking pin mechanism 2 and a hook connecting shaft 5, a fixed disc 3 is fixedly arranged at the upper end of the hook connecting shaft 5, the fixed disc 3 is located below the locking pin mechanism 2, the fixed disc 3 is concentric and coaxial with the hook connecting shaft 5, the diameter of the fixed disc 3 is larger than the diameter of the hook connecting shaft 5, a plurality of disc bolt holes are evenly arranged on the fixed disc 3, a plurality of locking pin bolt holes are evenly arranged at the lower end of the locking pin mechanism 2, and the aperture of the locking pin bolt hole matches the aperture of the disc bolt hole.

[0026] A connecting device 4 is arranged in the locking pin bolt hole and the disc bolt hole, and the connecting device 4 is a high-strength bolt rod.

[0027] The number of the locking pin bolt hole and the number of the disc bolt holes are both 4, and a connecting device (4) is provided in each hole.

[0028] The locking pin mechanism 2 is connected to the fixed disc 3 via a connecting device 4 to prevent the hook connecting shaft 5 from rotating back and forth.

[0029] Example 2: See Figure 3 and Figure 4 The structure of this embodiment is basically the same as that of embodiment 1, and the similarities are not repeated. The difference is that: the "⊥"-shaped connecting device includes a vertical screw 4-1 with an external thread and a horizontal rotating handle 4-2, which are vertically welded together.

[0030] The utility model can effectively prevent the occurrence of anti-rotation of the overhead crane ingot hook by fixing a fixed disc 3 on the upper end of the hook connecting shaft 5, and bolting the fixed disc 3 to the locking pin mechanism 2, thereby reducing the occurrence rate of safety accidents and improving the production efficiency of the hoisting work.

[0031] The utility model can effectively reduce the time of ingot discharging after use, ensure the up and down stability of ingot discharging, ensure the stability of overhead crane hoisting equipment, save unnecessary time, and effectively deal with potential safety hazards, which not only reduces the occurrence rate of safety accidents but also improves production efficiency.

[0032] The utility model effectively solves the problem that the existing hydraulic clamps may accidentally collide with the ingot during ingot removal and cannot be accurately placed in the designated position, effectively shortens the ingot removal time and avoids corresponding safety hazards.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model 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 utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preventing a hook from rotating when discharging an ingot from a crane, comprising a hook support frame (1), a locking pin mechanism (2) and a hook connecting shaft (5), characterized in that: A fixed disc (3) is fixedly arranged at the upper end of the hook connecting shaft (5), the fixed disc (3) is located below the locking pin mechanism (2), the fixed disc (3) is coaxial with the hook connecting shaft (5), the diameter of the fixed disc (3) is larger than the diameter of the hook connecting shaft (5), a plurality of disc bolt holes are evenly arranged on the fixed disc (3), and a plurality of locking pin bolt holes are evenly arranged at the lower end of the locking pin mechanism (2), and the hole diameter of the locking pin bolt hole matches the hole diameter of the disc bolt hole.

2. The anti-rotation device for the overhead travelling crane hook according to claim 1 is characterized in that: A connecting device (4) is provided in the locking pin bolt hole and the disc bolt hole. The connecting device (4) is a high-strength bolt rod, or a "⊥"-shaped connecting device.

3. The anti-rotation device for the overhead travelling crane hook according to claim 2 is characterized in that: The "⊥"-shaped connection device comprises a vertical screw rod (4-1) provided with an external thread and a horizontal rotating handle (4-2), which are vertically welded together.

4. The anti-rotation device for the overhead travelling crane hook according to claim 1 is characterized in that: The number of the locking pin bolt holes and the number of the disc bolt holes are both 4, and a connecting device (4) is provided in each hole.

5. The anti-rotation device for the overhead travelling crane hook according to claim 2 is characterized in that: The locking pin mechanism (2) is connected to the fixed disc (3) via a connecting device (4) to prevent the hook connecting shaft (5) from rotating back and forth.

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