Steel billet hoisting clamp

Abstract

The utility model discloses a steel billet hoisting clamp, which belongs to the technical field of steel billet hoisting equipment, and comprises a containing part, a clamping part and a lifting part, the containing part is in a ring shape with a notch, the notch is used for enabling steel billets to enter and exit from an inner cavity of the containing part, and the containing part is connected with a lifting hook of hoisting equipment; the connecting end of the holding part is connected with the side wall of the containing part, and the free end of the holding part extends in the direction away from the notch. The steel billet grabbing device is used in cooperation with hoisting equipment, by arranging the containing part and the holding part, when the steel billet grabbing device is used, a worker holds the holding part, steel billets enter and leave an inner cavity of the containing part through the notch by means of friction force formed by frictional contact of the containing part and the steel billets, and the steel billets are grabbed and put down, and the safe distance between the free end of the holding part and the steel billets is achieved; the potential safety hazard that workers get close to high-temperature steel billets is reduced. In addition, the clamp is simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of billet hoisting equipment, and relates to a billet hoisting clamp. Background Technology

[0002] After steel billets are produced in the continuous casting equipment, they need to be lifted off the continuous casting production line to facilitate continuous billet production. Currently, scissor clamps are mostly used to hold and lower the steel billets, in conjunction with overhead cranes for billet lifting. However, scissor clamps have a relatively complex structure and also suffer from the following drawbacks during billet lifting:

[0003] 1. The steel billet needs to be manually clamped;

[0004] 2. After the billet is clamped, the overhead crane lifts the billet off the production line, but the clamps need to be manually released when the billet is lowered.

[0005] Because the billet temperature is close to 800℃, workers have to do more manual labor, and the high temperature on site can easily cause on-site safety accidents.

[0006] Therefore, it is necessary to provide a high-safety billet lifting clamp. Utility Model Content

[0007] To at least address the aforementioned problems in the prior art where manual intervention is required when using scissor clamps to hold and lower steel billets, and the safety hazards posed by workers approaching the high-temperature steel billets, this utility model provides the following technical solution: a steel billet lifting clamp, the clamp comprising:

[0008] A receiving portion, the receiving portion being annular with a notch for allowing the steel billet to enter and exit the inner cavity of the receiving portion, the receiving portion being connected to the hook of a lifting device; and

[0009] The gripping part has a connecting end connected to the side wall of the receiving part, and the free end of the gripping part extends in a direction away from the notch.

[0010] Optionally, in the above-mentioned billet hoisting fixture, the shape of the inner cavity of the receiving part is consistent with the shape of the billet.

[0011] Optionally, in the above-mentioned billet lifting fixture, the fixture further includes: a connecting part;

[0012] The receiving part is detachably connected to the hook via the connecting part.

[0013] Optionally, in the billet hoisting fixture described above, the connecting part and the gripping part are located on the top sides of the receiving part.

[0014] Optionally, in the above-mentioned billet lifting fixture, the connecting part includes: a chain and an ear loop;

[0015] The chain is composed of multiple links spliced ​​together, and the first end of the chain is connected to the receiving part;

[0016] The earrings are strung on the end of the chain and hooked onto the hook during hoisting.

[0017] Optionally, in the above-mentioned billet hoisting fixture, the connecting part includes: a cable-locked wire rope;

[0018] The first end of the cable tie is attached to the receiving part, and the second end of the cable tie is hooked onto the hook during hoisting.

[0019] Optionally, in the billet hoisting fixture described above, the gripping part is a straight rod, and the gripping part is inclined upward relative to the horizontal plane.

[0020] Optionally, in the above-mentioned billet lifting clamp, the gripping part is made of heat-insulating material; or

[0021] The free end of the grip is provided with a heat-insulating coating.

[0022] Optionally, in the above-mentioned billet lifting fixtures, the fixtures are used in pairs;

[0023] The distance between the two clamps is less than the length of the steel billet, and the two clamps cooperate with the lifting equipment to lift the steel billet.

[0024] Optionally, in the above-mentioned billet lifting fixture, the lifting equipment is one of an overhead crane, an electric hoist, a crane, and a hoist.

[0025] The beneficial effects of the technical solution provided by this utility model embodiment are:

[0026] This application is used in conjunction with lifting equipment. By incorporating a receiving section and a gripping section, the worker grips the gripping section during use. The friction generated by the contact between the receiving section and the steel billet allows the billet to enter and exit the inner cavity of the receiving section through a notch, thus achieving the grabbing and lowering of the billet. The safe distance between the free end of the gripping section and the billet reduces the safety hazard of workers approaching the high-temperature billet. Furthermore, the fixture structure of this application is simple and inexpensive. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a billet hoisting fixture provided in an embodiment of the present utility model;

[0028] Figure 2 A schematic diagram illustrating the working principle of a billet hoisting fixture provided in this embodiment of the present invention;

[0029] Figure 3This is a schematic diagram of the structure of a scissor clamp in the prior art;

[0030] In the diagram: 1. Receiving part; 101. Notch; 2. Holding part; 3. Connecting part; 301. Chain; 302. Earring; 4. Steel billet. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0032] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0033] Please see Figure 1-2 The present invention provides the following technical solution: a billet hoisting clamp, the clamp comprising: a receiving part 1 and a holding part 2.

[0034] The receiving part 1 is annular with a notch 101 (also called an opening), which allows the steel billet 4 to enter and exit the inner cavity of the receiving part 1. The receiving part 1 is made of steel, and the shape of the inner cavity of the receiving part 1 is consistent with the shape of the steel billet 4. For example, when the steel billet 4 is a square steel billet, the inner cavity of the receiving part 1 is square, and the receiving part 1 is a square annular shape with a notch 101, or the receiving part 1 is a circular annular shape with a notch (which can be seen as a copper coin with a notch); when the steel billet 4 is a cylindrical steel billet, the inner cavity of the receiving part 1 is circular, and the receiving part 1 is a square annular shape with a notch 101, or the receiving part 1 is a circular annular shape with a notch. Normally, the size of the inner cavity of the receiving part 1 is consistent with the size of the cross-section of the steel billet 4, that is, the size of the steel billet 4 fits the clamp perfectly. The receiving part 1 is connected to the hook of the lifting equipment (not shown in the figure), preferably detachably, so as to facilitate the installation and removal of the clamp. The lifting equipment is one of the following: overhead crane, electric hoist, crane, and elevator.

[0035] The connecting end of the gripping part 2 is connected to the side wall of the receiving part 1, while the free end of the gripping part 2 extends away from the notch 101. The length of the gripping part 2 can be flexibly set according to actual needs. When the billet 4 is produced, the worker grips the gripping part 2, so that the notch 101 of the receiving part 1 is facing and in contact with the billet 4. The lifting equipment lifts the billet, and the friction between the billet 4 and the receiving part 1 generates frictional force. This frictional force causes the billet 4 to enter the inner cavity of the receiving part 1 through the notch 101. When the lifting equipment lifts the billet 4 to its destination and lowers it, the friction between the billet 1 and the receiving part 1 stops, and the receiving part 1 automatically detaches from the billet 1. This fixture realizes the gripping and lowering of the billet. The safe distance between the free end of the gripping part 2 and the billet 4 reduces the safety hazards of workers approaching the high-temperature billet 4. In addition, the fixture of this application has a simple structure, low cost, long service life, and basically requires no maintenance. It should be noted that the receiving part 1 and the hook of the lifting equipment can be connected together by connecting parts such as iron chains and steel wire ropes. The specific structure of the connecting parts is not limited in this embodiment, as long as a pulling force can be applied above the receiving part 1 to achieve frictional contact between the receiving part 1 and the steel billet.

[0036] As an embodiment of the specific connection method between the receiving part 1 and the hook, in this embodiment, the clamp further includes a connecting part 3. The receiving part 1 is detachably connected to the hook of the lifting equipment via the connecting part 3. Preferably, in Figure 2 In the diagram shown, the connecting part 3 and the gripping part 2 are located on the top sides of the receiving part 1, which balances the force on both sides of the clamp. It should be noted that the length of the connecting part 3 can be flexibly set according to the actual needs on site, and this embodiment does not limit it.

[0037] The fixtures in this application are used in pairs (see reference). Figure 2 As shown in the image, the specific usage method (including working principle) is as follows:

[0038] Step 1: Connect the receiving part 1 of the two clamps to the two hooks on the lifting equipment through the connecting part 3 respectively, use the lifting equipment to lift the clamps and transport them to the designated position;

[0039] Step 2: The worker operates the PLC of the lifting equipment to lower the position of the clamps. The clamps (referring to the receiving part 1) are lowered to a height lower than the steel billet 4 to be lifted. Two workers walk to both ends of the steel billet 4 (at the same time, the two workers are on the same side of the steel billet 4, and relative to the lifting direction of the steel billet 4, the two workers are on the rear side of the steel billet 4). Each worker holds the gripping part 2 on one of the clamps, aligns the notch 101 on the receiving part 1 with and contacts the steel billet 4. The two workers release their grips at the same time, the lifting equipment lifts, the connecting part 3 is straightened by the force, and the steel billet 4 forms friction with the bottom and top of the inner cavity of the receiving part 1, so that the steel billet 4 enters the inner cavity of the receiving part 1 through the notch 101. That is, the two clamps clamp the head and tail of the steel billet 4 respectively. At this time, the distance between the two clamps is less than the length of the steel billet 4.

[0040] Step 3: Use the lifting equipment to move the two clamps that have grabbed the billet 4 to the slab warehouse, and put the billet 4 into the slab warehouse. Since the billet 4 and the clamp (referring to the receiving part 1) are in frictional contact, after the billet 4 is put down (touches the ground), the clamp (receiving part 1) will automatically detach from the billet 4 after the connecting part 3 loses tension.

[0041] Step 4: After the clamps are released from the billet 4, the lifting equipment and hoisting tools continue to repeat the actions of steps 2 and 3 to lift the billet 4.

[0042] After the hoisting work is completed, the clamps are lifted to the designated position using the lifting equipment, and the workers remove the two clamps from the hook of the lifting equipment.

[0043] It should be noted that, compared to existing scissor clamps (such as...), Figure 3 As shown in the figure, the design of this clamp adopts the principle of frictional contact. The steel billet 4 is clamped by the frictional force formed between the clamp (referring to the receiving part 1) and the steel billet 4 and then lifted. There is no need for manual clamping of the steel billet 4, nor is there a need for manual unclamping. This reduces the number of personnel involved, saves time and effort, and reduces safety hazards.

[0044] As one embodiment of the specific structure of the connecting part 3, see [link to embodiment]. Figure 1 As shown, the connecting part 3 includes a chain 301 and an earring 302. The chain 301 is composed of multiple chain links joined together. The chain 301 can be made of iron. The first end of the chain 301 is connected to the receiving part 1, and the two can be connected together using techniques commonly used in the art. The earring 302 is connected to the second end of the chain 301. During hoisting, the earring 302 hooks onto the hook of the hoisting equipment; when not in use, the earring 302 is removed from the hook of the hoisting equipment.

[0045] As another embodiment of the specific structure of the connecting part 3, in this embodiment, the connecting part 3 includes: a buckle wire rope (not shown in the figure). One or both ends of the buckle wire rope have buckles. The first end of the buckle wire rope is tied to the receiving part 1. During hoisting, the tail end of the buckle wire rope (referring to the end with the buckle) is hooked on the hook. When not in use, the tail end of the buckle wire rope is removed from the hook of the hoisting equipment.

[0046] As an embodiment of the specific shape of the grip 2, in this embodiment, the grip 2 is a straight rod, and the grip 2 is inclined upward relative to the horizontal plane. Preferably, the angle between the grip 2 and the horizontal plane is in the range of 40° to 50°, such as 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, and 50°, with 45° providing the best comfort.

[0047] To further improve the safety of the clamp, the gripping part 2 is made of heat-insulating material; or the free end of the gripping part 2 (in) Figure 1 The upper part of the gripping part 2 shown in the picture is provided with a heat-insulating coating, so that when the worker holds the free end of the gripping part 2, the influence of high temperature radiation on the billet 4 or the on-site environment can be reduced.

[0048] As is known from common technical knowledge, this utility model can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A billet lifting clamp characterized by comprising: The clamp comprises: a receiving part in the shape of a ring with a notch for the billet to enter and exit the inner cavity of the receiving part, the receiving part being connected with a hook of a hoisting device; and a holding part, the connecting end of which is connected with the side wall of the receiving part, and the free end of which extends away from the notch.

2. The billet lifting clamp according to claim 1, characterized in that, The shape of the inner cavity of the receiving part is consistent with that of the billet.

3. The billet lifting clamp according to claim 1, characterized in that, The clamp further comprises a connecting part. The receiving part is detachably connected with the hook through the connecting part.

4. The billet lifting clamp according to claim 3, characterized in that, The connecting part and the holding part are located on both sides of the top of the receiving part.

5. The billet lifting clamp according to claim 3, characterized in that, The connecting part comprises a chain and an earring. The chain is spliced by a plurality of chain links, and the head end of the chain is connected with the receiving part. The earring is connected in series at the tail end of the chain, and the earring is hooked on the hook during hoisting.

6. The billet lifting clamp according to claim 3, characterized by The connecting part comprises a carabiner wire rope. The head end of the carabiner wire rope is tied on the receiving part, and the tail end of the carabiner wire rope is hooked on the hook during hoisting.

7. The billet handling clamp defined in claim 1 wherein, The holding part is a straight rod, and the holding part is upwardly inclined relative to the horizontal plane.

8. The billet handling clamp defined in claim 1 wherein, The holding part is made of heat insulation material; or The free end of the holding part is provided with a heat insulation coating.

9. The billet lifting clamp according to claim 1, characterized by The clamp is used in pairs. The distance between the two clamps is less than the length of the billet, and the two clamps are cooperated with the hoisting device to hoist the billet.

10. The billet lifting clamp according to claim 1, characterized by The hoisting device is one of a crown block, an electric hoist, a crane and an elevator.

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