Electric single-beam crane end beam device

Abstract

This utility model relates to the field of lifting and transport machinery technology, and discloses an end beam device for an electric single-girder crane, including a main beam with a groove on its surface. A first connecting plate is fixedly connected to one side of the main beam, and first drive bars are fixedly connected to both sides of the main beam. Second drive bars are fixedly connected to both sides of the main beam. Multiple screws are threaded onto the surface of the first connecting plate. A sliding groove is fixedly connected to one side of the main beam, and a ground pad is fixedly connected to the inner surface of the sliding groove. A second connecting plate is threaded onto the threaded surface of the screws. A protective shell is fixedly connected to one side of the second connecting plate, and two rotating rods are interlaced on the surface of the protective shell. A first retaining ring is fixedly connected to both ends of the two rotating rods. The existing end beam traveling mechanism has poor buffering effect during operation and is prone to large vibrations due to uneven road surfaces or track joints, which not only affects the operating stability of the crane but also shortens the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of lifting and transport machinery technology, and in particular to an end beam device for an electric single-girder crane. Background Technology

[0002] Electric single-girder cranes are widely used in industrial production, warehousing and logistics, and the end beam, as an important component, undertakes key functions such as bearing the main beam and realizing movement.

[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: the end beams of existing electric single-girder cranes are mostly integral structures. Due to their fixed length, integral end beams are difficult to adapt to the space constraints of different transportation vehicles, which increases transportation costs and difficulties. Summary of the Invention

[0004] The technical problem to be solved by this utility model is that the existing end beam traveling mechanism has poor buffering effect during operation and is prone to large vibrations due to uneven road surface or track joints, which not only affects the operating stability of the crane, but also shortens the service life of the equipment. To this end, we propose an end beam device for an electric single beam crane.

[0005] To achieve the above objectives, this application adopts the following technical solution: an end beam device for an electric single-girder crane, comprising a main beam, the surface of which is provided with a groove, a first connecting plate fixedly connected to one side of the main beam, a first drive bar fixedly connected to both sides of the main beam, a second drive bar fixedly connected to both sides of the main beam, a plurality of screws threadedly connected to the surface of the first connecting plate, a sliding groove fixedly connected to one side of the main beam, and a floor mat fixedly connected to the inner surface of the sliding groove.

[0006] Preferably, the screw has a threaded connection to a second connecting plate, a protective shell is fixedly connected to one side of the second connecting plate, two rotating rods are inserted through the surface of the protective shell, a first retaining ring is fixedly connected to both ends of the two rotating rods, and a rotating wheel is fixedly connected to the arc surface of the rotating rod.

[0007] Preferably, a slider is slidably connected to the inner surface of the groove, four springs are fixedly connected to the opposite surfaces of the slider, a baffle is fixedly connected to one end of each of the four springs, a buffer rod is fixedly connected to one side of the baffle, one end of the buffer rod is fixedly connected to the slider, and two first pulleys are rotatably connected to the inner surface of the slider.

[0008] Preferably, two connecting strips are fixedly connected to both sides of the slider, and a first fixing plate is fixedly connected to one side of the two connecting strips. Four shafts are interlaced on the surface of the first fixing plate, and a second pulley is fixedly connected to one end of each of the four shafts. A second retaining ring is fixedly connected to the arc surface of each of the four shafts.

[0009] Preferably, a second fixed plate is fixedly connected to one side of the first fixed plate, a first motor is fixedly connected to one side of the second fixed plate, two drive wheels are interlaced on the surface of the first fixed plate, one end of each drive wheel is fixedly connected to the first motor, and a grooved wheel is fixedly connected to one side of each drive wheel. The inner surfaces of the two grooved wheels are connected by a belt.

[0010] Preferably, a connecting seat is fixedly connected to one side of the first fixing plate, a fixing block is fixedly connected to the inner surface of the connecting seat, a second motor is fixedly connected to one side of the fixing block, and a steel cable shaft is fixedly connected to the output end of the second motor.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this invention, the main beam and connecting plate are fixed with screws, and a protective shell is used to enhance structural stability and safety. The slider, along with springs and buffer rods, forms a buffer structure to reduce operational impact. The pulley and drive wheel design ensures smooth movement, and the drive wheel is linked by a belt to enhance power stability. The steel cable shaft and motor work together to improve lifting efficiency, and the overall structure balances protection, buffering, and driving performance. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

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

[0015] Figure 2 This is a schematic diagram of the main beam in this utility model;

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

[0017] Figure 4 This is a schematic diagram of the slider structure in this utility model;

[0018] Figure 5 This is a schematic diagram of the connecting seat in this utility model.

[0019] Legend: 1. Main beam; 2. Groove; 3. First connecting plate; 4. First drive bar; 5. Second drive bar; 6. Screw; 7. Slide groove; 8. Ground mat; 9. Second connecting plate; 10. Protective shell; 11. Rotating rod; 12. First retaining ring; 13. Rotating wheel; 14. Sliding block; 15. Spring; 16. Buffer rod; 17. Baffle; 18. First pulley; 19. Connecting bar; 20. First fixing plate; 21. Shaft; 22. Second pulley; 23. Second retaining ring; 24. Second fixing plate; 25. First motor; 26. Drive wheel; 27. Grooved wheel; 28. Belt; 29. ​​Connecting seat; 30. Fixing block; 31. Second motor; 32. Steel cable shaft. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0021] Reference Figures 1-5 As shown, the device includes a main beam with grooves on its surface. A first connecting plate is fixedly connected to one side of the main beam, and first drive bars and second drive bars are fixedly connected to both sides of the main beam. Multiple screws are threaded onto the surface of the first connecting plate. A sliding groove is fixedly connected to one side of the main beam, and a floor mat is fixedly connected to the inner surface of the sliding groove. The grooves on the main beam surface can optimize the stress distribution. The first connecting plate and screws work together to achieve a stable connection. The first and second drive bars provide a foundation for the drive. The combination of the sliding groove and the floor mat can guide the sliding of the components and reduce friction damage, thereby improving the overall foundation bearing capacity and connection stability of the device.

[0022] Reference Figure 2 As shown in this embodiment: the threaded surface of the screw is threadedly connected to a second connecting plate, a protective shell is fixedly connected to one side of the second connecting plate, two rotating rods are interlaced on the surface of the protective shell, and a first retaining ring is fixedly connected to both ends of the two rotating rods. A rotating wheel is fixedly connected to the arc surface of the rotating rod. The screw connects the second connecting plate and the protective shell, which is convenient for disassembly and assembly, and the protective shell can protect the internal components. The combination of the rotating rod, the first retaining ring and the rotating wheel allows the rotating wheel to assist in movement, and the retaining ring prevents the rotating rod from slipping, thereby enhancing operational safety and the smoothness of component linkage.

[0023] Reference Figure 3As shown in this embodiment: a slider is slidably connected to the inner surface of the slide groove, four springs are fixedly connected to the opposite sides of the slider, a baffle is fixedly connected to one end of the four springs, a buffer rod is fixedly connected to one side of the baffle, one end of the buffer rod is fixedly connected to the slider, and two first pulleys are rotatably connected to the inner surface of the slider. The slider slides in the slide groove to achieve flexible movement. The springs and the buffer rod form a double buffer to reduce sliding impact.

[0024] Reference Figure 3 As shown in this embodiment: two connecting strips are fixedly connected to both sides of the slider, and a first fixing plate is fixedly connected to one side of the two connecting strips. Four shafts are interlaced on the surface of the first fixing plate, and a second pulley is fixedly connected to one end of each of the four shafts. A second retaining ring is fixedly connected to the arc surface of each of the four shafts. The connecting strips connect the slider and the first fixing plate, enhancing the overall structural integrity. The shafts, second pulleys, and second retaining rings cooperate, with the pulleys reducing movement resistance and the retaining rings fixing the shafts to ensure stable operation of the component.

[0025] Reference Figure 5 As shown in this embodiment: a second fixed plate is fixedly connected to one side of the first fixed plate, a first motor is fixedly connected to one side of the second fixed plate, two drive wheels are interlaced on the surface of the first fixed plate, one end of the drive wheel is fixedly connected to the first motor, a grooved wheel is fixedly connected to one side of the two drive wheels, the inner surfaces of the two grooved wheels are connected by a belt, the second fixed plate fixes the first motor to ensure the stability of the power source, the drive wheels are connected to the motor to provide power, and the grooved wheel and the belt achieve synchronous drive.

[0026] Reference Figure 5 As shown in this embodiment: a connecting seat is fixedly connected to one side of the first fixing plate, a fixing block is fixedly connected to the inner surface of the connecting seat, a second motor is fixedly connected to one side of the fixing block, and a steel cable shaft is fixedly connected to the output end of the second motor. The connecting seat and the fixing block securely fix the second motor, ensuring stable power output of the steel cable shaft. The steel cable shaft is driven by the motor, which can efficiently complete the lifting and retraction actions. The structure is compact and the power transmission is direct.

[0027] Working principle: The main beam, as the core load-bearing structure, is securely connected to the external structure via the first connecting plate. The first and second drive bars provide the working foundation for the drive components, while the slide groove provides the sliding track for the slider. The second connecting plate is fixed to the first connecting plate with screws, and the protective shell protects the internal rotating rods, wheels, and other components. When the rotating rod moves with the device, the wheels provide auxiliary support and reduce friction, the first retaining ring prevents the rotating rod from slipping axially, and the first pulley reduces frictional resistance when the slider slides within the slide groove. In the event of an impact, the baffle pushes the spring and buffer rod to contract, achieving buffering and shock absorption, preventing the slider from being directly damaged by force. The slider drives the first fixed plate to move through the connecting bar, and the second pulley on the shaft rolls tangentially along the contact surface. The second retaining ring restricts the displacement of the shaft, improving the smoothness of movement. After the first motor starts, the power is transmitted to the drive wheel through the output end, and at the same time, it drives another drive wheel to rotate synchronously through the grooved wheel and belt. The drive wheel cooperates with the drive bar to drive the entire device to move along the set trajectory. When lifting operations are performed, the second motor starts, and the output end drives the steel cable shaft to rotate. The steel cable shaft lifts and lowers the heavy object by winding and unwinding the steel cable. The fixed block and connecting seat ensure the stable operation of the second motor and the steel cable shaft, ensuring the precise execution of lifting actions.

[0028] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An end beam device for an electric single-girder crane, characterized in that, Includes a main beam (1), the surface of which is provided with a roller groove (2), a first connecting plate (3) is fixedly connected to one side of the main beam (1), a first drive bar (4) is fixedly connected to both sides of the main beam (1), a second drive bar (5) is fixedly connected to both sides of the main beam (1), a plurality of screws (6) are threadedly connected to the surface of the first connecting plate (3), a sliding groove (7) is fixedly connected to one side of the main beam (1), and a floor mat (8) is fixedly connected to the inner surface of the sliding groove (7).

2. The end beam device for an electric single-girder crane according to claim 1, characterized in that: The screw (6) has a threaded connection to a second connecting plate (9), and a protective shell (10) is fixedly connected to one side of the second connecting plate (9). Two rotating rods (11) are inserted through the surface of the protective shell (10). A first retaining ring (12) is fixedly connected to both ends of the two rotating rods (11), and a rotating wheel (13) is fixedly connected to the arc surface of the rotating rod (11).

3. The end beam device for an electric single-girder crane according to claim 1, characterized in that: The inner surface of the slide groove (7) is slidably connected to a slider (14). Four springs (15) are fixedly connected to the opposite surfaces of the slider (14). A baffle (17) is fixedly connected to one end of each of the four springs (15). A buffer rod (16) is fixedly connected to one side of the baffle (17). One end of the buffer rod (16) is fixedly connected to the slider (14). Two first pulleys (18) are rotatably connected to the inner surface of the slider (14).

4. The end beam device for an electric single-girder crane according to claim 3, characterized in that: Two connecting strips (19) are fixedly connected to both sides of the slider (14). A first fixing plate (20) is fixedly connected to one side of the two connecting strips (19). Four shafts (21) are interlaced on the surface of the first fixing plate (20). A second pulley (22) is fixedly connected to one end of each shaft (21). A second retaining ring (23) is fixedly connected to the arc surface of each of the four shafts (21).

5. The end beam device for an electric single-girder crane according to claim 4, characterized in that: A second fixed plate (24) is fixedly connected to one side of the first fixed plate (20), and a first motor (25) is fixedly connected to one side of the second fixed plate (24). Two drive wheels (26) are interlaced on the surface of the first fixed plate (20). One end of the drive wheel (26) is fixedly connected to the first motor (25). A grooved wheel (27) is fixedly connected to one side of the two drive wheels (26), and the inner surfaces of the two grooved wheels (27) are connected by a belt (28).

6. The end beam device for an electric single-girder crane according to claim 5, characterized in that: A connecting seat (29) is fixedly connected to one side of the first fixing plate (20), a fixing block (30) is fixedly connected to the inner surface of the connecting seat (29), a second motor (31) is fixedly connected to one side of the fixing block (30), and a steel cable shaft (32) is fixedly connected to the output end of the second motor (31).

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