Crane lifting mechanism with smooth transmission and lifting

Abstract

This utility model discloses a crane lifting mechanism with smooth transmission and lifting, including a crane top plate and a fixed base. The fixed base is fixedly installed on the lower surface of the crane top plate, and a lifting frame is provided on the lower surface of the fixed base. A first servo motor is fixedly installed on the side wall of the fixed base. This utility model, through the coordination of components such as the crane top plate, fixed base, lifting frame, second servo motor, second lead screw, slide bar, lifting frame, slide, lifting mechanism body, steel rope, lifting wheel, and hook, achieves the function of smoothly lifting heavy objects in the initial and final stages. It improves the existing crane lifting method, reduces the degree of steel rope deformation, avoids unstable lifting, prevents the heavy object from swaying, prevents the heavy object from falling, reduces safety accidents, ensures the normal operation of lifting work, speeds up the lifting work efficiency, and improves the safety of the crane.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and in particular to a crane lifting mechanism with smooth transmission and lifting. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. It is also known as an overhead crane, gantry crane, or hoist. Cranes are becoming increasingly widespread in the market, and every crane is equipped with a lifting mechanism.

[0003] In existing technologies, traditional cranes lift heavy objects by connecting the hook to the object and then having the hoisting mechanism retract the steel cable to lift it. This method of lifting is prone to instability in the initial and final stages of lifting because the steel cable is easily deformed. This can cause the object to sway, potentially leading to it falling and causing accidents. It also affects the normal operation of the lifting work, reduces the efficiency of the lifting work, and lowers the safety of the crane. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a crane lifting mechanism with smooth transmission and lifting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a crane lifting mechanism with smooth transmission and lifting, comprising a crane top plate and a fixed base. The fixed base is fixedly installed on the lower surface of the crane top plate. A lifting frame is provided on the lower surface of the fixed base. A first servo motor is fixedly installed on the side wall of the fixed base. A first lead screw is fixedly installed on the output end of the first servo motor on the side wall of the fixed base. A second servo motor is fixedly installed on the top wall of the lifting frame. A second lead screw is fixedly installed on the output end of the second servo motor. A lifting frame is provided inside the lifting frame. A lifting mechanism body is fixedly installed on the upper surface of the lifting frame. A steel rope is wound inside the lifting mechanism body. One end of the steel rope extending out of the lifting mechanism body is fixedly connected to the outer surface of the other end of the lifting mechanism body. A lifting wheel is sleeved on the outer surface of the bottom end of the steel rope. A hook is provided at the bottom end of the lifting wheel. A disassembly assembly is provided on the outside of the lifting wheel.

[0006] As a further description of the above technical solution: the first lead screw is threadedly connected to the side wall of the lifting frame, and a positioning rod penetrating the side wall of the lifting frame is fixedly installed on the inner wall of the fixed seat. By setting the above components, the function of lateral movement of the lifting frame is realized.

[0007] As a further description of the above technical solution: the second lead screw is threadedly connected to the upper surface of the lifting frame, and a sliding rod that penetrates the lifting frame is fixedly installed on the inner wall of the lifting frame. By setting the above components, the function of lifting the lifting frame is realized.

[0008] As a further description of the above technical solution: both ends of the lifting frame are fixedly installed with slides, and both sides of the lifting frame are provided with sliding grooves that are adapted to the slides. By setting the above components, the function of improving the stability of the lifting frame is realized.

[0009] As a further description of the above technical solution: the disassembly and assembly assembly includes a connecting frame, which is sleeved on the outer surface of the lifting wheel. Connecting frames that insert into the connecting frame are fixedly installed on both side walls of the lifting wheel. Fixing bolts are threaded onto the side walls of both connecting frames. An installation frame sleeved on the bottom end of the connecting frame is fixedly installed on the top of the hook. A locking block is fixedly installed on the inner wall of the installation frame. A locking groove is formed on the lower surface of the connecting frame, and installation bolts are threaded onto the lower surface of the installation frame. By setting up the disassembly and assembly assembly, the function of disassembling and assembling the hook is realized.

[0010] As a further description of the above technical solution: a positioning bolt is threadedly connected to the side wall of one of the connecting frames, penetrating the lifting wheel and the two connecting frames; a nut is threadedly connected to the positioning bolt on the side wall of the other connecting frame; a positioning hole is opened on the side wall of the connecting frame for insertion of the positioning bolt; a fixing bolt penetrates the side wall of the connecting frame and is inserted into the side wall of the connecting frame; a positioning block is fixedly installed on the outer surface of the lifting wheel for insertion into the connecting frame; by setting the above components, the function of fixing the connecting frame is realized.

[0011] As a further description of the above technical solution: both the card block and the card slot are T-shaped, the inner walls of the card block and the card slot are slidably connected, and the mounting bolts penetrate the lower surface of the mounting frame and are inserted into the bottom end of the connecting frame. By setting the above components, the function of fixing the mounting frame is realized.

[0012] This utility model has the following beneficial effects:

[0013] 1. Compared with existing technologies, this smooth-lifting crane mechanism, through the coordination of components such as the crane top plate, fixed base, lifting frame, first servo motor, first lead screw, positioning rod, second servo motor, second lead screw, slide bar, lifting frame, slide carriage, lifting mechanism body, steel rope, lifting wheel, and hook, achieves the function of smooth lifting of heavy objects in the initial and final stages. It improves the lifting method of existing cranes, reduces the degree of steel rope deformation, avoids unstable lifting, prevents the heavy object from swaying, prevents the heavy object from falling, reduces safety accidents, ensures the normal operation of lifting work, speeds up the work efficiency, and improves the safety of the crane.

[0014] 2. Compared with existing technologies, this smooth lifting mechanism for cranes, through the coordination of components such as connecting frame, connecting frame, positioning block, positioning bolt, nut, fixing bolt, mounting frame, locking block, locking groove and mounting bolt, enables quick assembly and disassembly of the hook. It improves the existing hook installation method on cranes, allowing the hook to be quickly replaced according to actual conditions and usage environment, saving time and effort and improving the convenience of the crane. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the crane lifting mechanism with smooth transmission and lifting proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the fixed base structure of the crane lifting mechanism with smooth transmission and lifting proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the lifting frame structure of the crane lifting mechanism with smooth transmission and lifting proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the lifting frame structure of the crane lifting mechanism with smooth transmission and lifting proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the disassembly and assembly components of the crane lifting mechanism with smooth transmission and lifting proposed in this utility model.

[0020] Legend:

[0021] 1. Crane top plate; 2. Fixed base; 3. Lifting frame; 4. First servo motor; 5. First lead screw; 6. Positioning rod; 7. Second servo motor; 8. Second lead screw; 9. Slide rod; 10. Lifting frame; 11. Slide frame; 12. Lifting mechanism body; 13. Steel rope; 14. Lifting wheel; 15. Hook; 16. Connecting frame; 17. Connecting frame; 18. Positioning block; 19. Positioning bolt; 20. Nut; 21. Fixing bolt; 22. Mounting frame; 23. Locking block; 24. Locking groove; 25. Mounting bolt. 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. 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.

[0023] Reference Figures 1 to 5 The present invention provides a crane lifting mechanism with smooth transmission and lifting: including a crane top plate 1 and a fixed base 2. The fixed base 2 is fixedly installed on the lower surface of the crane top plate 1. A lifting frame 3 is provided on the lower surface of the fixed base 2. A first servo motor 4 is fixedly installed on the side wall of the fixed base 2. A first lead screw 5 is fixedly installed on the output end of the first servo motor 4 and threadedly connected to the side wall of the fixed base 2. A positioning rod 6 penetrating the side wall of the lifting frame 3 is fixedly installed on the inner wall of the fixed base 2. A second servo motor 7 is fixedly installed on the top wall of the lifting frame 3. A second lead screw 8 is fixedly installed on the output end of the second servo motor 7 and threadedly connected to the lifting frame 3. The upper surface of the frame 10 is threaded. The inner wall of the lifting frame 3 is fixedly installed with a slide rod 9 that passes through the lifting frame 10. The lifting frame 10 is set inside the lifting frame 3. Slides 11 are fixedly installed at both ends of the lifting frame 10. Slide grooves that are adapted to slides 11 are opened through both sides of the lifting frame 3. The lifting mechanism body 12 is fixedly installed on the upper surface of the lifting frame 10. A steel rope 13 is wound inside the lifting mechanism body 12. One end of the steel rope 13 extends out of the lifting mechanism body 12 and is fixedly connected to the outer surface of the other end of the lifting mechanism body 12. A lifting wheel 14 is sleeved on the outer surface of the bottom end of the steel rope 13. A hook 15 is set at the bottom end of the lifting wheel 14.

[0024] By configuring the crane top plate 1, fixed base 2, lifting frame 3, first servo motor 4, first lead screw 5, positioning rod 6, second servo motor 7, second lead screw 8, slide bar 9, lifting frame 10, slide 11, lifting mechanism body 12, steel rope 13, lifting wheel 14, and hook 15, the crane achieves the function of smoothly lifting heavy objects in the initial and final stages of lifting. This improves the lifting method of existing cranes, reduces the degree of deformation of the steel rope 13, avoids unstable lifting, prevents the heavy objects from swaying, prevents the heavy objects from falling, reduces safety accidents, ensures the normal operation of lifting work, speeds up the work efficiency, and improves the safety of the crane.

[0025] The lifting wheel 14 is externally equipped with a disassembly and assembly assembly, which includes a connecting frame 16. The connecting frame 16 is sleeved on the outer surface of the lifting wheel 14. Connecting frames 17, which interlock with the connecting frame 16, are fixedly installed on both side walls of the lifting wheel 14. A positioning bolt 19, penetrating the lifting wheel 14 and both connecting frames 17, is threaded onto the side wall of one connecting frame 17. A nut 20, threaded onto the positioning bolt 19, is provided on the side wall of the other connecting frame 17. Positioning holes for interlocking with the positioning bolt 19 are provided on the side wall of the connecting frame 16. A positioning block 1, which interlocks with the connecting frame 16, is fixedly installed on the outer surface of the lifting wheel 14. 8. The side walls of both connecting frames 17 are threaded with fixing bolts 21. The fixing bolts 21 penetrate the side walls of the connecting frames 17 and are inserted into the side walls of the connecting frame 16. The top of the hook 15 is fixedly installed with a mounting frame 22 sleeved on the bottom of the connecting frame 16. The inner wall of the mounting frame 22 is fixedly installed with a locking block 23. The lower surface of the connecting frame 16 is provided with a locking groove 24. Both the locking block 23 and the locking groove 24 are T-shaped. The locking block 23 and the inner wall of the locking groove 24 are slidably connected. The lower surface of the mounting frame 22 is threaded with a mounting bolt 25. The mounting bolt 25 penetrates the lower surface of the mounting frame 22 and is inserted into the bottom of the connecting frame 16.

[0026] By setting up a connecting frame 16, a connecting frame 17, a positioning block 18, a positioning bolt 19, a nut 20, a fixing bolt 21, a mounting frame 22, a locking block 23, a locking groove 24, and a mounting bolt 25, the function of quickly assembling and disassembling the hook 15 is realized, which improves the installation method of the hook 15 on the existing crane. It allows the hook 15 to be quickly replaced according to the actual situation and the usage environment, saving time and effort and improving the convenience of the crane.

[0027] Working principle: Before using a crane to lift a heavy object, first select a suitable hook 15 according to the actual situation. First, bring the connecting frame 16 close to the lifting wheel 14, aligning the connecting frame 16 with the connecting frame 17. Then, raise the connecting frame 16, allowing it to slide along the side wall of the lifting wheel 14 into the connecting frame 17. Once the connecting frame 16 is inserted into the connecting frame 17, it fits onto the outer surface of the positioning block 18. Next, rotate the positioning bolt 19 and the fixing bolt 21, allowing the positioning bolt 19 to pass through both connecting frames 17 and the lifting wheel 14, and through the positioning hole into the connecting frame 16. Finally, tighten the nut 20 onto the positioning bolt 19, thereby restricting the connecting frame 16. After the mounting bolt 25 passes through the side wall of the connecting frame 17 and is screwed into the side wall of the connecting bracket 16, the connecting bracket 16 is fixed. Then, the mounting frame 22 with the hook 15 is brought close to the bottom end of the connecting bracket 16, so that the locking block 23 is aligned with the locking groove 24. The mounting frame 22 is moved so that it slides along the bottom end of the connecting bracket 16, and the locking block 23 slides inside the locking groove 24. When the mounting frame 22 is fitted onto the bottom end of the connecting bracket 16, the mounting bolt 25 is turned so that it passes through the mounting frame 22 and is screwed into the inside of the connecting bracket 16, thus fixing the mounting frame 22 and completing the installation of the hook 15. The above operation is repeated in reverse to disassemble the hook 15 and replace it.

[0028] When using a crane to lift a heavy object, first connect the hook 15 to the object, then start the second servo motor 7. When the second servo motor 7 runs, it drives the second lead screw 8 to rotate inside the lifting frame 3. When the second lead screw 8 rotates, it drives the lifting frame 10 to move. Under the action of the slide rod 9, the lifting frame 10 slides upward along the outer surface of the second lead screw 8 and the slide rod 9 inside the lifting frame 3, thereby driving the lifting mechanism body 12 to rise. This movement drives the steel rope 13, the lifting wheel 14, and the hook 15 to rise. When the steel rope 13 is taut, the heavy object is lifted. Then, start the lifting mechanism body 12 to retract the steel rope 13 into the lifting mechanism body 12, thereby driving the lifting wheel 14 and the hook 15 to continue to rise, thus completing the smooth lifting of the heavy object. When lowering the heavy object, the above operation is reversed to lower the heavy object smoothly.

[0029] During the lifting of heavy objects, when it is necessary to move the heavy objects laterally, the first servo motor 4 is started. When the first servo motor 4 is running, it drives the first lead screw 5 to rotate inside the fixed base 2. When the first lead screw 5 rotates, it drives the lifting frame 3 to move. Under the action of the positioning rod 6, the lifting frame 3 slides laterally along the outer surface of the first lead screw 5 and the positioning rod 6, thereby driving the heavy objects to move laterally. When the heavy objects reach the appropriate position, the first lead screw 5 can be stopped.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hoist mechanism of a crane with smooth transmission and lifting, comprising a crane top plate (1) and a fixed base (2), characterized in that: The fixed base (2) is fixedly installed on the lower surface of the crane top plate (1). A lifting frame (3) is provided on the lower surface of the fixed base (2). A first servo motor (4) is fixedly installed on the side wall of the fixed base (2). A first lead screw (5) of the side wall of the fixed base (2) is fixedly installed at the output end of the first servo motor (4). A second servo motor (7) is fixedly installed on the top wall of the lifting frame (3). A second lead screw (8) is fixedly installed at the output end of the second servo motor (7). A lifting mechanism is provided inside the lifting frame (3). A lowering frame (10) is provided. A lifting mechanism body (12) is fixedly installed on the upper surface of the lifting frame (10). A steel rope (13) is wound inside the lifting mechanism body (12). One end of the steel rope (13) extends out of the lifting mechanism body (12) and is fixedly connected to the outer surface of the other end of the lifting mechanism body (12). A lifting wheel (14) is sleeved on the outer surface of the bottom end of the steel rope (13). A hook (15) is provided at the bottom end of the lifting wheel (14). A disassembly and assembly assembly is provided on the outside of the lifting wheel (14).

2. A hoist drive of a hoist drive-lift smoothness crane according to claim 1, characterized in that: The first lead screw (5) is threaded to the side wall of the lifting frame (3), and the inner wall of the fixed seat (2) is fixedly installed with a positioning rod (6) that penetrates the side wall of the lifting frame (3).

3. The crane lifting mechanism with smooth transmission and lifting according to claim 1, characterized in that: The second lead screw (8) is threaded to the upper surface of the lifting frame (10), and a slide rod (9) that passes through the lifting frame (10) is fixedly installed on the inner wall of the lifting frame (3).

4. The crane lifting mechanism with smooth transmission and lifting according to claim 1, characterized in that: Both ends of the lifting frame (10) are fixedly installed with slides (11), and both sides of the lifting frame (3) are provided with sliding grooves that are compatible with the slides (11).

5. The crane lifting mechanism with smooth transmission and lifting according to claim 1, characterized in that: The assembly and disassembly assembly includes a connecting frame (16), which is sleeved on the outer surface of the lifting wheel (14). Both sides of the lifting wheel (14) are fixedly installed with connecting frames (17) that are inserted into the connecting frame (16). The side walls of the two connecting frames (17) are threadedly connected with fixing bolts (21). The top of the hook (15) is fixedly installed with an installation frame (22) sleeved on the bottom of the connecting frame (16). The inner wall of the installation frame (22) is fixedly installed with a locking block (23). The lower surface of the connecting frame (16) is provided with a locking groove (24). The lower surface of the installation frame (22) is threadedly connected with an installation bolt (25).

6. The crane lifting mechanism with smooth transmission and lifting according to claim 5, characterized in that: One of the connecting frames (17) has a threaded connection on its side wall with a positioning bolt (19) that passes through the lifting wheel (14) and the two connecting frames (17). The other connecting frame (17) has a nut (20) that is threadedly connected to the positioning bolt (19) on its side wall. The connecting frame (16) has a positioning hole on its side wall that is inserted into the positioning bolt (19). The fixing bolt (21) passes through the side wall of the connecting frame (17) and is inserted into the side wall of the connecting frame (16). The outer surface of the lifting wheel (14) is fixedly installed with a positioning block (18) that is inserted into the connecting frame (16).

7. The crane lifting mechanism with smooth transmission and lifting according to claim 5, characterized in that: The shape of the card block (23) and the card slot (24) is T-shaped. The inner walls of the card block (23) and the card slot (24) are slidably connected. The mounting bolt (25) passes through the lower surface of the mounting frame (22) and is inserted into the bottom end of the connecting frame (16).

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