A clamp for hoisting an aluminum ingot

Abstract

The utility model relates to hoist clamp technical field, and disclose a kind of clamp for aluminium ingot hoisting, including fixed casing, the outer wall of fixed casing is equipped with notched, the inner wall of fixed casing is equipped with guide slot, the top of fixed casing is fixedly equipped with cover, the inner wall of cover is slidably connected with connecting rod, the top of connecting rod is fixedly installed with lifting ring, by utilizing two groups of movable components to be symmetrical distribution with triangular slider as center, in through guide rail and pulley one synchronous cooperation, drive both sides of jaw symmetrical rotation, make the clamping force of clamp head to aluminium ingot evenly distributed, ensure that aluminium ingot barycenter always coincides with clamp center, effectively avoid the inclination or drop caused by unilateral stress deviation, simultaneously hoist, triangular slider moves up and compresses first spring, and the thrust of guide rail to pulley one forms stable clamping force, and the greater the hoisting force, the more closely clamped, without additional locking device can be realized lifting i.

Description

Technical Field

[0001] This utility model relates to the field of lifting clamp technology, specifically a clamp for lifting aluminum ingots. Background Technology

[0002] In the production, processing and transportation of aluminum ingots, lifting fixtures are key equipment for achieving efficient transfer of aluminum ingots. Secondly, aluminum ingots need to be made into rods, plates and other shapes during industrial production. Since aluminum ingots are generally heavy, they need to be transported to the appropriate location by lifting.

[0003] Existing clamps typically use single-sided drive, resulting in uneven force on both sides of the aluminum ingot during clamping, which can easily lead to a shift in the center of gravity. This is especially true when lifting heavy aluminum ingots, often causing tilting, shaking, or even falling off. This not only affects production efficiency but may also cause equipment damage or personal injury accidents. Therefore, we have introduced a clamp for lifting aluminum ingots. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a clamp for lifting aluminum ingots, which has the advantages of improved clamping safety and stability as well as a clamp head that allows for rapid assembly, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a clamp for lifting aluminum ingots, comprising a fixed housing, a groove on the outer wall of the fixed housing, a guide groove on the inner wall of the fixed housing, a cover plate fixedly mounted on the top of the fixed housing, a connecting rod slidably connected to the inner wall of the cover plate, a lifting ring fixedly mounted on the top of the connecting rod, a triangular slider fixedly mounted on the bottom of the connecting rod, a first spring provided on the outer wall of the cover plate, a guide rail fixedly mounted on the outer wall of the triangular slider, a fulcrum fixedly mounted on the outer wall of the fixed housing, a gripper rotatably connected to the outer wall of the fulcrum, a pulley rotatably connected to the top of the gripper, a clamping head provided at the bottom of the gripper, a positioning rod fixedly mounted on the outer wall of the clamping head, a slot provided on the outer wall of the positioning rod, a positioning hole provided at the bottom of the gripper, and a connecting component provided on the inner wall of the gripper.

[0006] As a preferred technical solution of this utility model: the pulley, gripper, clamp head, positioning rod, slot, positioning hole and connecting assembly are regarded as a set of movable components, and the number of such movable components is two sets respectively symmetrically arranged with the triangular slider as the center.

[0007] As a preferred technical solution of this utility model: the outer walls of the two pulleys are in contact with the guide rail of the outer wall of the triangular slider and form a sliding connection; the middle ends of the two grippers are rotatably arranged around the outer wall of the fulcrum; the outer walls of the two triangular sliders are in contact with the inner wall of the guide groove and are slidably arranged; the first spring is located at the bottom of the cover plate and the top of the triangular slider, with one end overlapping the bottom of the cover plate and the other end overlapping the top of the triangular slider.

[0008] As a preferred technical solution of this utility model: the outer walls of the two positioning rods are adapted to the shape of the inner wall of the positioning hole.

[0009] As a preferred technical solution of this utility model: the connecting assembly includes a limiting rod fixedly installed at the bottom of the gripper, a sliding cylinder is slidably connected to the outer wall of the limiting rod, a square groove and a circular groove are respectively opened on the inner wall of the clamp head, a convex pin and a second spring are respectively provided in the inner cavity of the circular groove, a pulley is rotatably connected to the inner wall of the square groove, and a steel wire rope is provided on the outer wall of the convex pin.

[0010] As a preferred technical solution of this utility model: the square groove, the circular groove, the convex pin, the second spring, the pulley two, and the steel wire rope are regarded as a set of movable components, and there are four sets of such movable components, which are arranged in a circular array. One end of the four steel wire ropes is connected and fixed to the outer wall of the slide cylinder, and the other end passes through the inner wall of the clamp head and is connected and fixed to the outer wall of the convex pin. One end of the four convex pins is slidably fitted against the outer wall of the square groove, and the outer wall of the other end is adapted to the shape of the inner wall of the slot. The four second springs are located on one side of the convex pin, and one end overlaps with the outer wall of the convex pin, and the other end overlaps with the inner wall of the square groove. The outer wall of the four steel wire ropes is set at a ninety-degree angle to the outer edge of the four pulley two.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This aluminum ingot hoisting clamp utilizes two sets of movable components symmetrically distributed around a triangular slider. Through the synchronous cooperation of the guide rail and pulley one, the jaws on both sides rotate symmetrically, ensuring that the clamping force of the clamp head on the aluminum ingot is evenly distributed. This ensures that the center of gravity of the aluminum ingot always coincides with the center of the clamp, effectively avoiding tilting or falling off caused by unilateral force deviation. At the same time, during hoisting, the triangular slider moves upward to compress the first spring, and the thrust of the guide rail on pulley one forms a stable clamping force. The greater the hoisting force, the tighter the clamping. No additional locking device is needed to achieve immediate clamping upon hoisting, reducing the risk of accidental loosening.

[0013] 2. This aluminum ingot hoisting clamp utilizes the linkage of a sliding cylinder, wire rope, and convex pin to achieve rapid disassembly and installation of the clamp head. Simultaneously, sliding the sliding cylinder releases the fixation, and after release, the second spring automatically locks it, thus shortening the disassembly and assembly time between the clamp head and the bottom of the jaws. This allows for easy replacement of clamp heads of different sizes and shapes. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the fixture structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the positioning and installation structure of this utility model;

[0018] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B.

[0020] In the diagram: 1. Fixed housing; 2. Groove; 3. Guide groove; 4. Cover plate; 5. Connecting rod; 6. Lifting ring; 7. Triangular slider; 8. Guide rail; 9. Fulcrum; 10. Gripper; 11. Pulley one; 12. Grip head; 13. Positioning rod; 14. Slot; 15. Positioning hole; 16. Connecting assembly; 17. First spring; 161. Limiting rod; 162. Slide cylinder; 163. Square groove; 164. Circular groove; 165. Convex pin; 166. Second spring; 167. Pulley two; 168. Steel wire rope. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 - Figure 6A clamp for lifting aluminum ingots includes a fixed housing 1, a slot 2 on the outer wall of the fixed housing 1, a guide groove 3 on the inner wall of the fixed housing 1, a cover plate 4 fixedly mounted on the top of the fixed housing 1, a connecting rod 5 slidably connected to the inner wall of the cover plate 4, a lifting ring 6 fixedly mounted on the top of the connecting rod 5, a triangular slider 7 fixedly mounted on the bottom of the connecting rod 5, a first spring 17 on the outer wall of the cover plate 4, a guide rail 8 fixedly mounted on the outer wall of the triangular slider 7, a fulcrum 9 fixedly mounted on the outer wall of the fixed housing 1, a gripper 10 rotatably connected to the outer wall of the fulcrum 9, a pulley 11 rotatably connected to the top of the gripper 10, a clamp head 12 at the bottom of the gripper 10, a positioning rod 13 fixedly mounted on the outer wall of the clamp head 12, a slot 14 on the outer wall of the positioning rod 13, a positioning hole 15 at the bottom of the gripper 10, and a connecting component 16 on the inner wall of the gripper 10.

[0023] In the above structure, the fixed housing 1 serves as the overall support frame. The slot 2 on its outer wall provides rotation space for the gripper 10, and the guide groove 3 on the inner wall defines the sliding trajectory of the triangular slider 7. Furthermore, the fixed connection between the cover plate 4 and the fixed housing 1 forms a closed structure, allowing the connecting rod 5 to pass through the inner wall of the cover plate 4 and slide. At the same time, the lifting ring 6 at the top transmits the lifting force, enabling the triangular slider 7 connected at the bottom to transmit the force. The guide rail 8 on the outer wall of the triangular slider 7 and the top of the gripper 10 cooperate with the pulley 11, converting the up-and-down movement of the triangular slider 7 into the rotation of the gripper 10 around the fulcrum 9, thereby driving the clamping head 12 at the bottom to complete the clamping action.

[0024] In a preferred embodiment: pulley 11, gripper 10, clamp head 12, positioning rod 13, slot 14, positioning hole 15 and connecting assembly 16 are regarded as a set of movable components, and the number of such movable components is two sets respectively symmetrically arranged with the triangular slider 7 as the center;

[0025] In the above structure, two sets of movable components are symmetrically distributed around the triangular slider 7. When the triangular slider 7 moves up and down, it can drive the two sets of grippers 10 to rotate symmetrically in opposite directions around their respective fulcrums 9 through the synchronous cooperation of the guide rail 8 and the pulleys 11 on both sides. This causes the clamping heads 12 on both sides to move closer or further away synchronously, thereby ensuring that the aluminum ingot is clamped with uniform force on both sides, avoiding the tilting or falling off of the aluminum ingot due to the deviation of the clamping force on one side. At the same time, it keeps the center of gravity of the aluminum ingot consistent with the center of the clamp. Furthermore, the two clamping heads 12 can also be replaced and disassembled through the corresponding connecting components 16.

[0026] In a preferred embodiment: the outer walls of the two pulleys 11 are in contact with the guide rail 8 of the outer wall of the triangular slider 7 and form a sliding connection; the middle ends of the two grippers 10 are rotatably arranged around the outer wall of the fulcrum 9; the outer walls of the two triangular sliders 7 are in contact with the inner wall of the guide groove 3 and are slidably arranged; the first spring 17 is located at the bottom of the cover plate 4 and the top of the triangular slider 7, with one end overlapping the bottom of the cover plate 4 and the other end overlapping the top of the triangular slider 7.

[0027] In the above structure, when the lifting ring 6 drives the connecting rod 5 to slide along the inner wall of the cover plate 4, the triangular slider 7 will slide along the inner wall of the guide groove 3 under the sliding of the lifting ring 6. Simultaneously, the sliding triangular slider 7 will compress the top connecting assembly 16. At this time, the guide rails 8 fixedly installed on the inclined surfaces on both sides of the outer wall of the sliding triangular slider 7 will simultaneously move upwards, causing the guide rails 8 to push the pulleys 11 sliding on both sides and the outer edge to slide outwards. Furthermore, the sliding pulleys 11 will simultaneously drive one end of the gripper 10 to turn outwards. The middle of the rotating part rotates around the outer wall of the fulcrum 9, causing the bottom of the jaw 10 to turn inward. This causes the clamping heads 12, located at the bottom of the two jaws 10, to simultaneously approach the aluminum ingot, thereby clamping the aluminum ingot. When the lifting force is released, the triangular slider 7 is reset and slides downward by the rebound of the first spring 17. At this time, the pushing force of the guide rail 8 on the pulley 11 is released, causing the two jaws 10 to rotate in opposite directions under the weight of the aluminum ingot itself. At this time, the clamping heads 12 will release the aluminum ingot and release the clamping, thus realizing that the aluminum ingot is clamped when lifted and released when lowered.

[0028] In a preferred embodiment: the outer walls of the two positioning rods 13 are adapted to the shape of the inner wall of the positioning hole 15;

[0029] In the above structure, when the clamp head 12 is disassembled and assembled at the bottom of the gripper 10, the clamp head 12 can slide along the outer wall of the positioning hole 15 via the positioning rod 13 to achieve the sliding of the assembly and the positioning during assembly.

[0030] In a preferred embodiment: the connecting assembly 16 includes a limiting rod 161 fixedly installed at the bottom of the gripper 10, a slide cylinder 162 slidably connected to the outer wall of the limiting rod 161, a square groove 163 and a circular groove 164 respectively opened on the inner wall of the clamp head 12, a convex pin 165 and a second spring 166 respectively provided in the inner cavity of the circular groove 164, a pulley 167 rotatably connected to the inner wall of the square groove 163, and a steel wire rope 168 provided on the outer wall of the convex pin 165.

[0031] In a preferred embodiment: the square groove 163, the circular groove 164, the convex pin 165, the second spring 166, the pulley 167, and the wire rope 168 are considered as a set of movable components, and there are four sets of such movable components, which are arranged in a circular array. One end of each of the four wire ropes 168 is connected and fixed to the outer wall of the slide cylinder 162, and the other end passes through the inner wall of the clamp head 12 and is connected and fixed to the outer wall of the convex pin 165. One end of each of the four convex pins 165 is slidably fitted against the outer wall of the square groove 163, and the outer wall of the other end is adapted to the shape of the inner wall of the slot 14. The four second springs 166 are located on one side of the convex pin 165, and one end overlaps with the outer wall of the convex pin 165, and the other end overlaps with the inner wall of the square groove 163. The outer wall of each of the four wire ropes 168 is fitted at a 90-degree angle with the outer edge of each of the four pulleys 167.

[0032] In the above structure, by sliding the slide cylinder 162 along the inner wall of the limiting rod 161, the slide cylinder 162 will simultaneously drive one end of the four steel wire ropes 168 connected and fixed thereto to extend, so that the outer walls of the four steel wire ropes 168 will slide against the outer edges of the four pulleys 167. This causes the other ends of the four pulleys 167 to simultaneously pull one end of the convex pins 165 connected and fixed thereto to slide along the inner walls of the four corresponding square grooves 163. At this time, the four circular grooves 164 will simultaneously drive the second spring 166 set on one side to compress, and the four convex pins 165 will then slide along the inner walls of the four corresponding square grooves 163. The pin 165 will simultaneously push out of the inner wall of the corresponding slot 14, thereby releasing the fixation between the bottom end of the gripper 10 and the clamp head 12. This allows the clamp head 12 to be replaced to suit different models. Then, when assembly is required, the clamp head 12 is aligned with the bottom end of the gripper 10. Then, by loosening the slide cylinder 162, the four steel wire ropes 168 are changed from a taut state to a slack state. At this time, the four convex pins 165 will rebound using the four second springs 166, so that one end of the convex pin 165 will be simultaneously inserted into the inner cavity of the corresponding slot 14, thereby completing the assembly.

[0033] Working principle: First, the lifting equipment hooks the lifting ring 6 and applies an upward lifting force, causing the lifting ring 6 to drive the connecting rod 5 to slide upward along the inner wall of the cover plate 4. Simultaneously, the triangular slider 7 at the bottom of the connecting rod 5 moves upward along the guide groove 3 opened on the inner wall of the fixed housing 1. At this time, the first spring 17 at the top of the triangular slider 7 is compressed, causing the guide rails 8 on the inclined surfaces of the outer wall of the triangular slider 7 to move upward synchronously, pushing the pulleys 11 that are in contact with it on both sides to slide outward. This causes the pulleys 11 to drive the top of the gripper 10 to rotate outward, making the gripper 10 perform lever motion around the fulcrum 9, causing the bottom of the gripper 10 to rotate inward. Finally, the clamping heads 12 on both sides simultaneously approach and clamp the aluminum ingot, causing the two sets of moving components—pulleys 11 and grippers—to move inward. 10. The clamping heads 12 are symmetrically distributed around the triangular slider 7 to ensure that the aluminum ingot is subjected to uniform force on both sides and that the center of gravity is consistent with the center of the clamp, thus preventing tilting or falling off. After the lifting equipment transports the aluminum ingot to the target position, it gradually reduces the tension on the lifting ring 6, causing the triangular slider 7 to slide down along the guide groove 3 under the rebound force of the first spring 17. This causes the connecting rod 5 and the lifting ring 6 to move down and reset. When the triangular slider 7 moves down, the push force of the guide rail 8 on the pulley 11 is released, causing the jaw 10 to rotate in the opposite direction around the fulcrum 9 under the action of the weight of the aluminum ingot and its own weight. This causes the top of the jaw 10 to move inward and the bottom of the jaw 10 to move outward, thereby driving the two clamping heads 12 to move away from the aluminum ingot simultaneously, and finally completely release, completing the lowering of the aluminum ingot.

[0034] Next, the slide cylinder 162 slides along the inner wall of the limiting rod 161, causing the slide cylinder 162 to simultaneously drive one end of the four steel wire ropes 168 connected and fixed thereto to extend, so that the outer walls of the four steel wire ropes 168 slide against the outer edges of the four pulleys 167. This causes the other ends of the four pulleys 167 to simultaneously pull one end of the convex pin 165 connected and fixed thereto to slide along the inner wall of the four corresponding square grooves 163. At this time, the four sliding circular grooves 164 will simultaneously drive the first one set on one side. When the two springs 166 are compressed, the four convex pins 165 will simultaneously push out of the inner wall of the corresponding slot 14, thereby releasing the fixation between the bottom end of the gripper 10 and the clamp head 12. Then the old clamp head 12 can be pulled out along the inner wall of the positioning hole 15 opened at the bottom end of the gripper 10, so that the clamp head 12 can be replaced to suit different models. Next, when assembly is required, align the clamp head 12 with the bottom end of the gripper 10, and then align the positioning rod 13 with the positioning hole 15 of the gripper 10. Push the clamp head 12 to the installation position, and then release the slide cylinder 162 to change the four steel wire ropes 168 from a taut state to a slack state. At this time, the four convex pins 165 will rebound using the four second springs 166, so that one end of the convex pins 165 will simultaneously insert into the inner cavity of the corresponding slot 14, thereby completing the assembly.

[0035] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamp for lifting aluminum ingots, comprising a fixed housing (1), characterized in that: The outer wall of the fixed housing (1) is provided with a slot (2), the inner wall of the fixed housing (1) is provided with a guide groove (3), a cover plate (4) is fixedly mounted on the top of the fixed housing (1), a connecting rod (5) is slidably connected to the inner wall of the cover plate (4), a lifting ring (6) is fixedly installed on the top of the connecting rod (5), a triangular slider (7) is fixedly installed on the bottom of the connecting rod (5), a first spring (17) is provided on the outer wall of the cover plate (4), and a guide rail (8) is fixedly installed on the outer wall of the triangular slider (7). A fulcrum (9) is fixedly installed on the outer wall of the fixed housing (1). A gripper (10) is rotatably connected to the outer wall of the fulcrum (9). A pulley (11) is rotatably connected to the top of the gripper (10). A clamping head (12) is provided at the bottom of the gripper (10). A positioning rod (13) is fixedly installed on the outer wall of the clamping head (12). A slot (14) is opened on the outer wall of the positioning rod (13). A positioning hole (15) is opened at the bottom of the gripper (10). A connecting component (16) is provided on the inner wall of the gripper (10).

2. The clamp for lifting aluminum ingots according to claim 1, characterized in that: The pulley (11), gripper (10), clamp head (12), positioning rod (13), slot (14), positioning hole (15) and connecting component (16) are considered as a set of movable components, and the number of such movable components is two sets respectively symmetrically arranged with the triangular slider (7) as the center.

3. The clamp for lifting aluminum ingots according to claim 1, characterized in that: The outer walls of the two pulleys (11) are in contact with the guide rail (8) of the outer wall of the triangular slider (7) and form a sliding connection. The middle ends of the two grippers (10) are rotated around the outer wall of the fulcrum (9). The outer walls of the two triangular sliders (7) are in contact with the inner wall of the guide groove (3) and are slidably arranged. The first spring (17) is located at the bottom of the cover plate (4) and the top of the triangular slider (7), with one end overlapping the bottom of the cover plate (4) and the other end overlapping the top of the triangular slider (7).

4. The aluminum ingot hoisting clamp according to claim 1, characterized in that: The outer walls of the two positioning rods (13) are adapted to the inner wall shape of the positioning hole (15).

5. The aluminum ingot hoisting clamp according to claim 1, characterized in that: The connecting assembly (16) includes a limiting rod (161) fixedly installed at the bottom of the gripper (10). The outer wall of the limiting rod (161) is slidably connected to a slide cylinder (162). The inner wall of the clamp head (12) is provided with a square groove (163) and a circular groove (164). The inner cavity of the circular groove (164) is provided with a convex pin (165) and a second spring (166). The inner wall of the square groove (163) is rotatably connected to a pulley (167). The outer wall of the convex pin (165) is provided with a wire rope (168).

6. The aluminum ingot hoisting clamp according to claim 5, characterized in that: The square groove (163), circular groove (164), convex pin (165), second spring (166), pulley two (167), and steel wire rope (168) are considered as a set of movable components, and there are four sets of such movable components, arranged in a circular array. One end of each of the four steel wire ropes (168) is connected and fixed to the outer wall of the slide cylinder (162), and the other end passes through the inner wall of the clamp head (12) and is connected and fixed to the outer wall of the convex pin (165). One end of the pin (165) is slidably fitted against the outer wall of the square groove (163), and the outer wall of the other end is adapted to the shape of the inner wall of the slot (14). The four second springs (166) are located on one side of the convex pin (165), with one end overlapping the outer wall of the convex pin (165) and the other end overlapping the inner wall of the square groove (163). The outer walls of the four steel wire ropes (168) are fitted at a 90-degree angle with the outer edges of the four pulleys (167).

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