Coke grab crane with overload protection function

Abstract

The utility model discloses a coke grab crane with overload protection function, including connecting seat and connecting frame, the middle position of connecting seat bottom is equipped with connecting frame, all be equipped with two -way screw rod in screw rod groove, and both ends of two -way screw rod all have threaded block through the thread connection, the bottom of threaded block all is equipped with limit rod, and the bottom between the inside of limit rod all is equipped with opposite limit board, the middle position of connecting frame bottom end is hinged with the cross connecting block, and the bottom of connecting block all is equipped with the shovel, and the other end of shovel is evenly equipped with bucket tooth, and the slot of bucket tooth is equipped with locating block, and the position of the slot of bucket tooth bottom end is equipped with locating sleeve, and locating sleeve all with corresponding slot is inserted. The utility model discloses through to the outside of shovel protection, can strengthen its overload protection function, and when using, can assemble the disassembly of bucket tooth, convenient replacement.

Description

Technical Field

[0001] This utility model relates to the technical field of coke grab cranes, specifically a coke grab crane with overload protection function. Background Technology

[0002] Coke is a solid fuel that is hard, porous, and has a high calorific value. It is produced by high-temperature dry distillation of coal and is mostly used in ironmaking. When transporting and moving coke, cranes are needed to grab it to facilitate loading and unloading of coke and other bulk materials.

[0003] In existing technologies, when a typical coke grab crane is overloaded, it simply drops the material and spills some of it without any external protection. Furthermore, the bucket teeth cannot be assembled or disassembled during use, making them inconvenient to replace. Utility Model Content

[0004] The purpose of this utility model is to provide a coke grab crane with overload protection function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coke grab crane with overload protection function, comprising a connecting seat and a connecting frame. The connecting frame is located at the center of the bottom of the connecting seat, and both sides of the bottom of the connecting seat are provided with screw grooves. A bidirectional screw is provided in each screw groove, and both ends of the bidirectional screw are threadedly connected to threaded blocks. Each threaded block has a limiting rod at its bottom, and opposing limiting plates are provided between the bottom ends of the inner sides of the limiting rods. A cross-shaped joint is hinged at the center of the bottom of the connecting frame. The connecting block has a bucket at its bottom, and the other end of the bucket has evenly spaced teeth. The middle of the inner side of the teeth has a slot, and a positioning block is provided in the slot. The bottom end of the teeth has a positioning sleeve corresponding to the slot, and the positioning sleeve is inserted into the corresponding slot. The inner side of the positioning sleeve is sleeved with the corresponding positioning block, so that the limiting plate clamps and protects the outside of the bucket, which can enhance its overload protection function. In use, the teeth and bucket can be assembled and disassembled for easy replacement.

[0006] Preferably, threaded holes are provided at corresponding middle positions in the bucket teeth, positioning sleeve, and positioning block, and screws are threadedly connected to the corresponding threaded holes in the bucket teeth, positioning sleeve, and positioning block. Nuts are threadedly connected to both ends of the screws, so that the screws can be screwed through the bucket teeth, positioning sleeve, and positioning block to fix them.

[0007] Preferably, each of the inner sides of the bucket is provided with a placement groove, and each placement groove of the bucket is provided with a weighing sensor, so that the weighing sensor weighs the material, making it easy to monitor the weight it grabs.

[0008] Preferably, a hydraulic cylinder is provided at the middle position of the top of the connecting seat, and the output end of the hydraulic cylinder extends into the connecting frame to provide a connecting plate, so that the hydraulic cylinder drives the connecting plate to move up and down.

[0009] Preferably, the bottom of the connecting plate is provided with connecting rods on all four sides, and the bottom of each connecting rod is connected to a corresponding connecting block through a rotating shaft. The connecting block is provided with a moving groove at the position of the rotating shaft between the bottom of the connecting rod, so that when the connecting plate moves, it drives the rotating shaft between the connecting rods to move in the moving groove, which drives the connecting block to rotate in the hinged connecting frame, thereby driving the bucket to rotate and grab the material.

[0010] Preferably, a first gear is provided at the middle position of the bidirectional lead screw on one side of the connecting seat, and a motor is provided on the top of the connecting seat corresponding to the first gear. The output end of the motor extends through a bearing into the lead screw groove where a second gear is provided, and the second gear meshes with the first gear.

[0011] Preferably, the connecting seat at one end of the bidirectional lead screw is provided with an outer cover, and one end of the bidirectional lead screw extends into the outer cover through a bearing, and the bidirectional lead screws inside the outer cover are all configured as optical axes.

[0012] Preferably, each of the two-way lead screws inside the outer cover is provided with a pulley, and the pulleys are connected to each other by a belt.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This coke grab crane with overload protection function drives the second gear on its shaft to rotate through the motor. The second gear drives the first gear meshing with it to rotate, which in turn drives the double-acting screw to rotate. The double-acting screw drives the pulley on one end of the optical shaft to rotate. The pulleys are connected by a belt and rotate together. This allows the pulley to drive the threaded blocks at both ends of the double-acting screw to move together towards the middle. The threaded blocks can then drive the inner limiting plate to move together through the limiting rod to clamp and limit the outer side of the bucket, which can enhance its overload protection function. In use, the slot of the bucket tooth can be aligned with the positioning sleeve of the bucket for insertion, allowing the positioning block to be fitted into the positioning sleeve. Then, the screw is aligned with the threaded hole and screwed through the bucket tooth, positioning sleeve, and positioning block, and fixed with a nut, which facilitates its assembly, disassembly, and replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the front sectional view of the present invention;

[0016] Figure 3 This is a top sectional view of the connecting seat of this utility model;

[0017] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point B;

[0019] In the diagram: 1. Connecting seat; 2. Connecting frame; 3. Hydraulic cylinder; 4. Motor; 5. Limiting rod; 6. Outer cover; 7. Connecting rod; 8. Bucket; 9. Connecting block; 10. Bucket teeth; 11. Limiting plate; 12. Pulley; 13. Moving groove; 14. Weighing sensor; 15. Connecting plate; 16. Gear 1; 17. Screw groove; 18. Double-acting screw; 19. Threaded block; 20. Gear 2; 21. Positioning sleeve; 22. Positioning block; 23. Screw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-5 This utility model provides an embodiment of a coke grab crane with overload protection function, including a connecting seat 1 and a connecting frame 2. The connecting frame 2 is located in the middle of the bottom of the connecting seat 1, and both sides of the bottom of the connecting seat 1 are provided with screw grooves 17. Each screw groove 17 is provided with a bidirectional screw 18, and both ends of the bidirectional screw 18 are threadedly connected to threaded blocks 19. The bottom of each threaded block 19 is provided with a limiting rod 5, and the bottom ends of the inner sides of the limiting rods 5 are provided with opposing limiting plates 11. The middle of the bidirectional screw 18 on one side of the connecting seat 1... A gear 16 is provided at the position, and a motor 4 is provided on the top of the connecting seat 1 corresponding to one side of the gear 16. The output end of the motor 4 extends through the bearing to the screw groove 17, where a gear 20 is provided. The gear 20 meshes with the gear 16. An outer cover 6 is provided on the outside of the connecting seat 1 at one end of the bidirectional screw 18. One end of the bidirectional screw 18 extends through the bearing into the outer cover 6. The bidirectional screws 18 inside the outer cover 6 are all optical shafts. Each optical shaft of the bidirectional screw 18 inside the outer cover 6 is provided with a pulley 12, and the pulleys 12 are connected to each other by a belt.

[0022] In use, the motor 4 drives the gear 20 on its shaft to rotate, the gear 20 drives the gear 16 meshing with it to rotate, the gear 16 drives the double-acting screw 18 to rotate, the double-acting screw 18 drives the pulley 12 on one end of the optical shaft to rotate, and the pulleys 12 are connected by a belt to rotate. The two sets of pulleys 12 can drive the two sets of double-acting screws 18 to rotate, and the double-acting screw 18 drives the threaded blocks 19 at both ends to move together towards the middle. The threaded blocks 19 can drive the inner limit plate 11 to move together through the limit rod 5, so that the limit plate 11 clamps and limits the outer side of the bucket 8, which can prevent the bucket 8 from grabbing materials unevenly and causing overload operation. The limit plate 11 can protect it and enhance its overload protection function.

[0023] A cross-shaped connecting block 9 is hinged at the middle position of the bottom of the connecting frame 2, and a bucket 8 is provided at the bottom of each connecting block 9. The other end of the bucket 8 is evenly provided with bucket teeth 10. A hydraulic cylinder 3 is provided at the middle position of the top of the connecting seat 1, and a connecting plate 15 is provided at the output end of the hydraulic cylinder 3 extending into the connecting frame 2. Connecting rods 7 are provided around the bottom of the connecting plate 15, and the bottom of each connecting rod 7 is connected to the corresponding connecting block 9 through a rotating shaft. A moving groove 13 is provided at the position of the rotating shaft between the bottom of the connecting block 9 and the connecting rod 7.

[0024] When in use, the output end of the hydraulic cylinder 3 can drive the connecting plate 15 to move up and down, so that the pivot between the connecting rods 7 at the bottom of the connecting plate 15 can move in the moving groove 13, so that the connecting block 9 can rotate in the hinged connecting frame 2, and when the connecting block 9 rotates, it can drive the bottom bucket 8 to rotate together to open or close, which is convenient for grabbing coke.

[0025] A slot is provided in the middle of the inner side of the bucket tooth 10, and a positioning block 22 is provided in the slot of the bucket tooth 10. A positioning sleeve 21 is provided at the bottom of the bucket tooth 10 corresponding to the slot. The positioning sleeve 21 is inserted into the corresponding slot, and the inner side of the positioning sleeve 21 is sleeved with the corresponding positioning block 22. Threaded holes are provided in the middle of the corresponding positions of the bucket tooth 10, the positioning sleeve 21 and the positioning block 22. A screw 23 is threadedly connected to the corresponding threaded holes of the bucket tooth 10, the positioning sleeve 21 and the positioning block 22. Nuts are threadedly connected to both ends of the screw 23.

[0026] When in use, the slot of the bucket tooth 10 can be aligned with the positioning sleeve 21 of the bucket 8 and inserted. During insertion, the positioning block 22 can be fitted into the positioning sleeve 21. Then, the screw 23 is aligned with the threaded hole and screwed through the bucket tooth 10, the positioning sleeve 21 and the positioning block 22. Nuts are screwed onto both ends of the screw 23 to fix it, making it easy to assemble, disassemble and replace.

[0027] The inner side of the bucket 8 is evenly provided with placement slots, and each placement slot of the bucket 8 is provided with a weighing sensor 14;

[0028] When in use, the load cell 14 can weigh the coke inside the bucket 8, making it easy to monitor the weight of the coke.

[0029] In this embodiment, the bucket teeth 10 are aligned with the positioning sleeve 21 of the bucket 8 and inserted. During insertion, the positioning block 22 is fitted inside the positioning sleeve 21. The screw 23 is then aligned with the threaded hole and screwed through the bucket teeth 10, positioning sleeve 21, and positioning block 22. Nuts are screwed onto both ends of the screw 23 to fix it, facilitating assembly, disassembly, and replacement. When material needs to be grabbed, the output end of the hydraulic cylinder 3 drives the connecting plate 15 to move up and down, causing the pivot between the connecting rods 7 at the bottom of the connecting plate 15 to move within the moving groove 13. This causes the connecting block 9 to rotate within the hinged connecting frame 2. When the connecting block 9 rotates, it causes the bucket 8 at the bottom to rotate together, opening or closing to facilitate grabbing coke. When the material is grabbed and lifted, the weighing sensor 14 on the inner side weighs the coke inside the bucket 8, facilitating the measurement of the coke's weight. Monitoring is performed, and the tension sensor integrated on the wire rope can work together to monitor it. During monitoring, the motor 4 drives the gear 20 on its shaft to rotate, the gear 20 drives the gear 16 meshing with it to rotate, the gear 16 drives the double-acting screw 18 to rotate, the double-acting screw 18 drives the pulley 12 on one end of the optical shaft to rotate, and the pulleys 12 are connected by a belt to rotate. The two sets of pulleys 12 can drive the two sets of double-acting screws 18 to rotate, and the double-acting screw 18 drives the threaded blocks 19 at both ends to move together to the middle. The threaded blocks 19 can drive the inner limit plate 11 to move together through the limit rod 5, so that the limit plate 11 clamps and limits the outside of the bucket 8, which can prevent the bucket 8 from grabbing materials unevenly and causing overload operation. The limit plate 11 can protect it and enhance its overload protection function.

[0030] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coke grab crane with overload protection function, characterized in that: The connection includes a connecting seat (1) and a connecting frame (2). The connecting frame (2) is located at the middle of the bottom of the connecting seat (1). Both sides of the bottom of the connecting seat (1) are provided with screw grooves (17). Both screw grooves (17) are provided with bidirectional screws (18). Both ends of the bidirectional screws (18) are connected to threaded blocks (19) by threads. The bottom of each threaded block (19) is provided with a limiting rod (5). The bottom ends of the inner sides of the limiting rods (5) are provided with opposing limiting plates (11). The bottom end of the connecting frame (2) is... A cross-connecting block (9) is hinged in the middle position, and a bucket (8) is provided at the bottom of each connecting block (9). The other end of the bucket (8) is provided with bucket teeth (10). A slot is provided in the middle position of the inner side of the bucket teeth (10), and a positioning block (22) is provided in the slot of the bucket teeth (10). A positioning sleeve (21) is provided at the bottom of the bucket teeth (10) corresponding to the position of the slot. The positioning sleeve (21) is inserted into the corresponding slot, and the inner side of the positioning sleeve (21) is sleeved with the corresponding positioning block (22).

2. A coke grab crane with overload protection function according to claim 1, characterized in that: The bucket teeth (10), positioning sleeve (21) and positioning block (22) are all provided with threaded holes at their corresponding middle positions, and the corresponding threaded holes of the bucket teeth (10), positioning sleeve (21) and positioning block (22) are all connected to screw rods (23) by threads, and the two ends of the screw rods (23) are all connected to nuts by threads.

3. A coke grab crane with overload protection function according to claim 1, characterized in that: The inner side of the bucket (8) is uniformly provided with placement slots, and each placement slot of the bucket (8) is provided with a weighing sensor (14).

4. A coke grab crane with overload protection function according to claim 1, characterized in that: A hydraulic cylinder (3) is provided at the middle position of the top of the connecting seat (1), and the output end of the hydraulic cylinder (3) extends into the connecting frame (2) where a connecting plate (15) is provided.

5. A coke grab crane with overload protection function according to claim 4, characterized in that: The bottom of the connecting plate (15) is provided with connecting rods (7) around all four sides, and the bottom of the connecting rods (7) are connected to the corresponding connecting blocks (9) through a rotating shaft. The connecting blocks (9) are provided with moving grooves (13) at the position of the rotating shaft between the bottom of the connecting rods (7).

6. A coke grab crane with overload protection function according to claim 1, characterized in that: A gear 1 (16) is provided in the middle position of the bidirectional lead screw (18) on one side of the connecting seat (1), and a motor (4) is provided on the top of the connecting seat (1) on the side corresponding to the gear 1 (16). The output end of the motor (4) extends through the bearing to the lead screw groove (17) where a gear 2 (20) is provided, and the gear 2 (20) meshes with the gear 1 (16).

7. A coke grab crane with overload protection function according to claim 1, characterized in that: The connecting seat (1) at one end of the bidirectional lead screw (18) is provided with an outer cover (6), and one end of the bidirectional lead screw (18) extends into the outer cover (6) through a bearing, and the bidirectional lead screw (18) inside the outer cover (6) is provided with an optical axis.

8. A coke grab crane with overload protection function according to claim 7, characterized in that: The outer cover (6) has pulleys (12) on the optical axis of the bidirectional lead screw (18), and the pulleys (12) are connected to each other by a belt.

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