A crane accessory pin assembly connection device

Abstract

This utility model discloses a crane accessory pin assembly connection device, relating to the field of crane accessory technology. Specifically, it is a crane accessory pin assembly connection device, including a worktable. A connecting groove is formed on the upper surface of the worktable, and a connecting slider is slidably connected inside the connecting groove. A support plate is provided on the upper surface of the connecting slider. A fixing frame is provided at the end of the support plate away from the connecting slider. An adjustment chamber is formed inside the fixing frame, and a support shaft is provided inside the adjustment chamber. A transmission gear is rotatably connected to the outer surface of the support shaft. This crane accessory pin assembly connection device, through the coordinated arrangement of the fixing frame, transmission gear, adjusting rack, limiting slide plate, guide slide rod, external gear ring, small servo motor, output gear, servo motor, and bidirectional screw, enables the crane accessory pin assembly connection device to conveniently self-center and self-connect the pin.

Description

Technical Field

[0001] This utility model relates to the field of crane accessories technology, specifically to a crane accessory pin assembly connection device. Background Technology

[0002] Some lifting equipment operates intermittently, meaning that the corresponding mechanisms for actions such as picking up, moving, and unloading materials work alternately in a work cycle. As a result, cranes are becoming increasingly widespread in the market.

[0003] Currently, the pin connections between crane components are completed manually. Pin installation requires two or more workers, and manual installation of the top pin may result in workers' fingers being injured. In addition, existing connection devices are prone to causing the pins to be installed too deeply due to human error, affecting the accuracy of use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a crane accessory pin assembly connection device, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a crane accessory pin assembly connection device, comprising a worktable, a connecting groove on the upper surface of the worktable, a connecting slider slidably connected inside the connecting groove, a support plate on the upper surface of the connecting slider, a fixed frame at the end of the support plate away from the connecting slider, an adjustment chamber inside the fixed frame, a support shaft inside the adjustment chamber, a transmission gear rotatably connected to the outer surface of the support shaft, an adjusting rack meshing with the outer surface of the transmission gear, a limiting slide plate on the outer surface of the adjusting rack, a limiting slide plate slidably connected inside the fixed frame, a connecting ring on the outer surface of the limiting slide plate, a guide rod slidably connected inside the connecting ring, the two ends of the guide rod being set on the inner wall of the adjustment chamber, an external gear ring meshing with the outer surface of the transmission gear, and the external gear ring rotatably connected inside the adjustment chamber.

[0008] Optionally, a small servo motor is provided on the inner wall of the adjustment chamber, and an output gear is provided at one end of the output shaft of the small servo motor, which meshes with an external gear ring.

[0009] Optionally, the number of transmission gears, adjusting racks, and limiting slides is several, and they are evenly distributed inside the adjusting chamber.

[0010] Optionally, the upper surface of the fixed frame is provided with a positioning seat, the positioning seat is provided with a control compartment, the control compartment is provided with a connecting slide rod, the outer surface of the connecting slide rod is slidably connected with a connecting plate, the lower surface of the connecting plate is provided with a limit post, the upper surface of the connecting plate is provided with a first spring, the upper surface of the connecting plate is provided with a connecting post, and the end of the connecting post away from the connecting plate is provided with a control handle.

[0011] Optionally, the positioning seat is internally slidably connected to an adjusting plate, and the adjusting plate has several limiting holes that are evenly distributed inside the adjusting plate. The positions of the limiting holes are adapted to the positions of the limiting posts.

[0012] Optionally, one end of the adjusting plate is provided with a positioning slide plate, and limit plates are provided on both sides of the positioning slide plate. A fixed slide rod is provided on one side of the adjusting plate. An operating handle is slidably connected to the outer surface of the fixed slide rod. A positioning post is provided on the outer surface of the operating handle. The positioning post is slidably connected to the interior of the adjusting plate. A second spring is provided on the outer surface of the operating handle. A positioning piece is provided at the end of the second spring away from the operating handle. The positioning piece is located at one end of the fixed slide rod. The interior of the positioning slide plate is provided with two positioning holes, which are distributed on both sides of the positioning slide plate and are adapted to the position of the positioning post.

[0013] Optionally, the number of fixed frames is two, and each fixed frame contains two sets of transmission gears, adjusting racks, limiting slides and small servo motors.

[0014] Optionally, the worktable is equipped with a servo motor inside, and one end of the output shaft of the servo motor is equipped with a bidirectional screw. The connecting slider is driven and connected to the outer surface of the bidirectional screw. The connecting groove is equipped with a support slide rod inside, and another set of connecting sliders is slidably connected to the outer surface of the support slide rod.

[0015] This utility model provides a pin assembly connection device for crane accessories, which has the following advantages:

[0016] 1. The crane accessory pin shaft assembly connection device, through the coordinated arrangement of a fixed frame, transmission gear, adjusting rack, limiting slide plate, guide slide rod, external gear ring, small servo motor, output gear, servo motor and bidirectional screw, enables the crane accessory pin shaft assembly connection device to conveniently center and fix the pin shaft itself, and to connect and fix it itself.

[0017] 2. The crane accessory pin assembly connection device, through the coordinated arrangement of positioning seat, limit post, first spring, control handle, adjusting plate, limit hole, and positioning slide plate, enables the crane accessory pin assembly connection device to conveniently and quickly adjust the installation depth and improve the connection accuracy. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the fixing frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the adjusting plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the positioning seat of this utility model;

[0022] Figure 5 This is a front view structural diagram of the present invention;

[0023] Figure 6 This is a top view of the structure of this utility model.

[0024] In the diagram: 1. Workbench; 2. Support plate; 3. Fixed frame; 4. Transmission gear; 5. Adjusting rack; 6. Limiting slide plate; 7. Guide slide rod; 8. External gear ring; 9. Small servo motor; 10. Output gear; 11. Positioning seat; 12. Connecting plate; 13. Limiting post; 14. First spring; 15. Control handle; 16. Adjusting plate; 17. Limiting hole; 18. Positioning slide plate; 19. Operating handle; 20. Second spring; 21. Positioning post; 22. Positioning hole; 23. Bidirectional screw; 24. Support slide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example

[0027] A crane accessory pin assembly connection device includes a workbench 1. A connecting groove is formed on the upper surface of the workbench 1, and a connecting slider is slidably connected inside the connecting groove. A support plate 2 is provided on the upper surface of the connecting slider. A fixed frame 3 is provided at the end of the support plate 2 away from the connecting slider. An adjustment chamber is formed inside the fixed frame 3, and a support shaft is provided inside the adjustment chamber. A transmission gear 4 is rotatably connected to the outer surface of the support shaft. An adjusting rack 5 is meshed on the outer surface of the transmission gear 4. A limiting slide plate 6 is provided on the outer surface of the adjusting rack 5. The limiting slide plate 6 is slidably connected inside the fixed frame 3. A connecting ring is provided on the outer surface of the limiting slide plate 6, and a guide rod 7 is slidably connected inside the connecting ring. The two ends of the guide rod 7 are located inside the adjustment chamber. On the wall, the outer surface of the transmission gear 4 is meshed with an external gear ring 8, which is rotatably connected to the inside of the adjustment chamber. A small servo motor 9 is installed on the inner wall of the adjustment chamber. One end of the output shaft of the small servo motor 9 is equipped with an output gear 10, which meshes with the external gear ring 8. Several transmission gears 4, adjustment racks 5, and limiting slide plates 6 are evenly distributed inside the adjustment chamber. A positioning seat 11 is installed on the upper surface of the fixed frame 3. A control chamber is opened inside the positioning seat 11, and a connecting slide rod is installed inside the control chamber. A connecting plate 12 is slidably connected to the outer surface of the connecting slide rod. A limiting post 13 is installed on the lower surface of the connecting plate 12, and a first spring 14 is installed on the upper surface of the connecting plate 12. The surface is provided with connecting posts, and a control handle 15 is provided at the end of the connecting posts away from the connecting plate 12. An adjusting plate 16 is slidably connected inside the positioning seat 11. The adjusting plate 16 has several limit holes 17, which are evenly distributed inside the adjusting plate 16. The positions of the limit holes 17 are adapted to the positions of the limit posts 13. A positioning slide plate 18 is provided at one end of the adjusting plate 16. Limit plates are provided on both sides of the positioning slide plate 18. A fixed slide rod is provided on one side of the adjusting plate 16. An operating handle 19 is slidably connected to the outer surface of the fixed slide rod. A positioning post 21 is provided on the outer surface of the operating handle 19. The positioning post 21 is slidably connected to the inside of the adjusting plate 16. A second spring 2 is provided on the outer surface of the operating handle 19. 0. The second spring 20 is provided with a positioning plate at the end away from the operating handle 19. The positioning plate is located at one end of the fixed slide rod. The positioning slide plate 18 has two positioning holes 22 inside, which are distributed on both sides of the positioning slide plate 18 and are adapted to the position of the positioning post 21. There are two fixed frames 3. Each fixed frame 3 has two sets of transmission gears 4, adjusting racks 5, limiting slide plates 6 and small servo motors 9. The worktable 1 is provided with a servo motor inside. One end of the output shaft of the servo motor is provided with a bidirectional screw 23. The connecting slider is connected to the outer surface of the bidirectional screw 23. The connecting slide groove is provided with a supporting slide rod 24 inside. The other set of connecting sliders is slidably connected to the outer surface of the supporting slide rod 24.

[0028] To enable the crane accessory pin assembly connection device to facilitate self-centering and self-fixation of the pins, and to facilitate quick and easy adjustment of the installation depth and improve connection accuracy, as shown in the attached document... Figure 1-6 As shown, this application adopts the following structure: through the cooperation of a fixed frame 3, a transmission gear 4, an adjusting rack 5, a limiting slide plate 6, a guide slide rod 7, an external gear ring 8, a small servo motor 9, an output gear 10, a servo motor and a bidirectional screw 23, a positioning seat 11, a limiting post 13, a first spring 14, a control handle 15, an adjusting plate 16, a limiting hole 17, and a positioning slide plate 18, during use, the pin to be connected is placed inside the fixed frame 3. By pulling the control handle 15, the first spring 14 is squeezed, causing the limiting post 13 to disengage from the limiting hole 17. The adjusting plate 16 is then slid, moving the adjusting plate 16 a corresponding distance. The outer surface of the adjusting plate 16 has a scale (not shown in the figure). Release the control handle 15 to insert the limiting pin 13 into the corresponding limiting hole 17, fixing the position of the adjusting plate 16. Then, pull the operating handle 19 to compress the second spring 20, causing the positioning pin 21 to disengage from the corresponding positioning hole 22, allowing the positioning slide plate 18 to slide down and position itself in front of the fixing frame 3. Release the operating handle 19 to insert the positioning pin 21 into the corresponding positioning hole 22, fixing the positioning slide plate 18. Move the pin shaft until it abuts against the positioning slide plate 18, completing the depth adjustment. Subsequently, control the small servo motor 9 to rotate, driving the output gear 10 to rotate, and proceed... The rotation of the external gear ring 8 drives the transmission gear 4 to rotate. Under the action of the adjusting rack 5, the limiting slide plate 6 slides along the guide slide rod 7 until all the limiting slide plates 6 simultaneously abut against the outer surface of the pin (the limiting slide plate 6 has a pressure sensor inside, not shown in the figure; when all the pressure sensors are pressed, the rotation of the small servo motor 9 stops), thus completing the fixing of the pin. At the same time, since all the transmission gears 4 are evenly engaged with the external gear ring 8, the movement of the limiting slide plates 6 is synchronous, thus ensuring that the pin is in the axial position at this time. Similarly, the pin sleeve is also fixed to... In another fixed frame 3, the operating handle 19 is pulled again to compress the second spring 20, causing the positioning pin 21 to disengage from the corresponding positioning hole 22. The positioning slide plate 18 slides upward, causing the positioning slide plate 18 to disengage from the pin and pin sleeve. Subsequently, the servo motor is controlled to rotate a corresponding number of turns, driving the bidirectional screw 23 to rotate, causing the two fixed frames 3 to slide in opposite directions along the support slide rod 24, completing the pin combination. This enables the crane accessory pin combination connection device to conveniently center and fix the pin, and to conveniently and quickly adjust the installation depth, improving the connection accuracy.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crane accessory pin shaft combination connection device comprising a workbench, characterized in that: The upper surface of the workbench is provided with a connecting groove, and a connecting slider is slidably connected inside the connecting groove. A support plate is provided on the upper surface of the connecting slider, and a fixed frame is provided at the end of the support plate away from the connecting slider. An adjustment chamber is provided inside the fixed frame, and a support shaft is provided inside the adjustment chamber. A transmission gear is rotatably connected to the outer surface of the support shaft, and an adjustment rack is meshed on the outer surface of the transmission gear. A limit slide is provided on the outer surface of the adjustment rack, and the limit slide is slidably connected inside the fixed frame. A connecting ring is provided on the outer surface of the limit slide, and a guide slide is slidably connected inside the connecting ring. The two ends of the guide slide are provided on the inner wall of the adjustment chamber, and an external gear ring is meshed on the outer surface of the transmission gear, and the external gear ring is rotatably connected inside the adjustment chamber.

2. A combination connector for a crane accessory pin shaft as defined in claim 1, wherein: The inner wall of the regulating chamber is equipped with a small servo motor, and one end of the output shaft of the small servo motor is equipped with an output gear, which meshes with an external gear ring.

3. A combination connector for a crane accessory pin shaft as defined in claim 1, wherein: The number of transmission gears, adjusting racks, and limiting slides is several, and they are evenly distributed inside the adjusting chamber.

4. A combination connector for a crane pin shaft assembly as defined in claim 1, wherein: The upper surface of the fixed frame is provided with a positioning seat, the inside of the positioning seat is provided with a control compartment, the inside of the control compartment is provided with a connecting slide rod, the outer surface of the connecting slide rod is slidably connected with a connecting plate, the lower surface of the connecting plate is provided with a limit post, the upper surface of the connecting plate is provided with a first spring, the upper surface of the connecting plate is provided with a connecting post, and the end of the connecting post away from the connecting plate is provided with a control handle.

5. A combination attachment device for a load lifting pin of a load lifting device according to claim 4, characterized in that: The positioning seat has an adjustment plate that is slidably connected inside. The adjustment plate has several limit holes that are evenly distributed inside the adjustment plate. The position of the limit holes is adapted to the position of the limit post.

6. A combination attachment device for a load lifting pin of a load lifting device according to claim 5, characterized in that: One end of the adjustment plate is provided with a positioning slide plate, and limit plates are provided on both sides of the positioning slide plate. A fixed slide rod is provided on one side of the adjustment plate. An operating handle is slidably connected to the outer surface of the fixed slide rod. A positioning post is provided on the outer surface of the operating handle. The positioning post is slidably connected to the inside of the adjustment plate. A second spring is provided on the outer surface of the operating handle. A positioning piece is provided at the end of the second spring away from the operating handle. The positioning piece is located at one end of the fixed slide rod. The positioning slide plate has two positioning holes inside, which are distributed on both sides of the positioning slide plate and are adapted to the position of the positioning post.

7. A combination connector for a load lift pin shaft assembly as defined in claim 1 wherein: The number of fixed frames is two, and each fixed frame contains two sets of transmission gears, adjusting racks, limiting slides and small servo motors.

8. A combination connector for a crane accessory pin shaft as defined in claim 1, wherein: The worktable is equipped with a servo motor. One end of the servo motor output shaft is equipped with a bidirectional screw. The connecting slider is connected to the outer surface of the bidirectional screw. The connecting groove is equipped with a support slide rod. Another set of connecting sliders is slidably connected to the outer surface of the support slide rod.

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