A gantry crane device

Abstract

The utility model relates to hoisting and transportation technical field discloses a portal crane device, including the fixed frame, the outer wall fixed connection of fixed frame has the hydraulic cylinder, the output fixed connection of hydraulic cylinder has the lifting frame, the outer wall sliding connection of lifting frame is in the inside of fixed frame, the outer wall fixed connection of lifting frame has the connecting rod no.

Description

Technical Field

[0001] This utility model relates to the field of lifting and transportation technology, and in particular to a gantry crane device. Background Technology

[0002] Gantry cranes, also known as gantry cranes, are a type of bridge crane. In large warehouses and logistics centers, they can load and unload palletized and boxed goods, enabling rapid and efficient handling and improving logistics efficiency.

[0003] A search revealed Chinese Patent Publication No. CN204823880U, which discloses a gantry crane device. The device includes two supports and two pillars, forming a telescopic column. An adjusting handle is located on one side of each support for adjusting the lifting and lowering of the telescopic column. A crossbeam is positioned between the two pillars, and two wire rope winding machines are mounted on the crossbeam. Two lifting frames are positioned below the crossbeam, directly opposite the two wire rope winding machines. Each lifting frame has a hook at its lower end, and the hook comprises a cylindrical lifting column. Two connecting rods are hinged to the lower end of the lifting column, and each connecting rod is movably connected to a boom via a pin. An arc-shaped plate is installed at the end of the boom. This invention features a simple structure and reasonable design. The hooks can clamp goods of different sizes, and PLC control improves work efficiency.

[0004] However, in actual use, when lifting heavy objects, there is often a risk of the heavy objects falling due to reasons such as the shaking of the lifted objects or loosening of the bindings. In addition, there is frequent traffic near the running track of the gantry crane, and once a falling object accident occurs, it can easily cause serious injuries or deaths. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a gantry crane device, which aims to improve the problem that frequent personnel traffic near the gantry crane's operating track can easily cause serious injuries or fatalities.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a gantry crane device, including a fixed frame, a hydraulic cylinder fixedly connected to the outer wall of the fixed frame, a lifting frame fixedly connected to the output end of the hydraulic cylinder, the outer wall of the lifting frame slidably connected to the inside of the fixed frame, a connecting rod one fixedly connected to the outer wall of the lifting frame, a transmission mechanism connected to the connecting rod one, a connecting rod two connected to the transmission mechanism, a sliding frame fixedly connected to the outer wall of the connecting rod two, the outer wall of the sliding frame slidably connected to the inside of the fixed frame, a connecting rod rotatably connected to the outer wall of the sliding frame, a guardrail rotatably connected to the outer wall of the connecting rod, and the outer wall of the guardrail rotatably connected to the outer wall of the fixed frame, the device of the fixed frame being equipped with a hydraulic component.

[0007] The above technical solution involves four sets of hydraulic cylinders installed on the outer wall of the fixed frame, which can make the lifting frame rise and fall evenly. When the lifting frame rises, the guardrail can be lowered through connecting rod one, transmission mechanism and connecting rod two. By lowering the guardrails on both sides, the guardrails can be automatically lowered when the object is lifted, preventing personnel from entering the transportation area and improving safety.

[0008] As a further description of the above technical solution:

[0009] The hydraulic assembly includes a hydraulic pump station, the outer wall of which is set on the outer wall of the fixed frame, and an oil supply pipe is provided on the outer wall of the hydraulic pump station, which is connected to the outer wall of the hydraulic cylinder.

[0010] The above technical solution involves a hydraulic pump station that provides power to the lifting frame. The hydraulic pump station supplies oil to four sets of lifting frames simultaneously through oil supply pipes, which can be fixed to the outer wall of the fixed frame to prevent them from falling apart.

[0011] As a further description of the above technical solution:

[0012] The transmission mechanism includes a rack, the outer wall of which is fixedly connected to the outer wall of a connecting rod, the outer wall of which is slidably connected to the inside of a fixed frame, a gear meshing with the tooth end of the rack, the outer wall of which is rotatably connected to the outer wall of the fixed frame, a rack two meshing with the tooth end of the gear, and the outer wall of the rack two is fixedly connected to the outer wall of the connecting rod two.

[0013] Through the above technical solution: rack one drives the gear to rotate, the gear drives rack two to slide, rack one and rack two slide in opposite directions, thereby causing connecting rod one and connecting rod two to slide in opposite directions.

[0014] As a further description of the above technical solution:

[0015] A base is fixedly connected to the lower surface of the fixed frame, and an electric wheel is provided on the lower surface of the base.

[0016] The above technical solution involves a base supporting a fixed frame, which can be moved by electric wheels, thereby moving the suspended object.

[0017] As a further description of the above technical solution:

[0018] A crossbeam is fixedly connected to the upper surface of the lifting frame, and a motor is installed on the outer wall of the crossbeam. A pulley is fixedly installed at the output end of the motor.

[0019] The above technical solution involves fixing the motor with a crossbeam, providing power, and driving the pulley to rotate.

[0020] As a further description of the above technical solution:

[0021] A timing belt is connected to the outer wall of the first pulley, and the timing belt is connected to the second pulley. The outer wall of the second pulley is rotatably connected to the outer wall of the lifting frame.

[0022] Through the above technical solution: Pulley 1 drives Pulley 2 to rotate via a synchronous belt, Pulley 1 and Pulley 2 rotate synchronously, and the lifting frame supports the rotation of Pulley 2.

[0023] As a further description of the above technical solution:

[0024] Both pulley 2 and pulley 1 are fixedly connected to the outer walls of positive and negative lead screws. The outer walls of the positive and negative lead screws are threadedly connected to adjustment frames. The outer walls of the adjustment frames are slidably connected to the inside of the crossbeam.

[0025] Through the above technical solution: pulley one and pulley two can simultaneously drive the positive and negative lead screws on both sides to rotate, the rotation of the positive and negative lead screws pushes the adjustment frame on both sides to slide, and the crossbeam restricts the sliding of the adjustment frame.

[0026] As a further description of the above technical solution:

[0027] Limiting blocks are fixedly connected to both outer walls of the adjustment frame, and suspension ropes are provided on the outer walls of the adjustment frame.

[0028] The above technical solution involves a suspension rope installed on the outer wall of the adjustment frame. The suspension rope can be used to directly connect to an object, or the object can be lifted by adding clamps. When the adjustment frame slides, it can drive the suspension rope to slide.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the lifting frame is raised and lowered by hydraulic drive, and the guardrails on both sides are rotated in opposite directions by a linkage mechanism such as gears and racks to form a protective barrier, which effectively avoids personnel being injured by falling objects in the work area, provides reliable safety protection for workers, and reduces safety risks during the operation.

[0031] 2. In this utility model, a motor drives a pulley, which in turn drives the forward and reverse lead screws to rotate via a synchronous belt. This causes the adjustment frame to slide in the opposite direction to precisely adjust the position of the lifting rope, ensuring that the lifting rope can adapt to objects of different widths. This achieves accurate positioning during the lifting process, meets diverse lifting needs, and improves the quality and efficiency of lifting operations. Attached Figure Description

[0032] Figure 1 This is a perspective view of a gantry crane device proposed in this utility model;

[0033] Figure 2 This is a partial structural diagram of the connecting rod of a gantry crane device proposed in this utility model;

[0034] Figure 3 This is a partial structural diagram of the rack and pinion mechanism of a gantry crane device proposed in this utility model;

[0035] Figure 4 This is a partial structural diagram of the adjustment frame of a gantry crane device proposed in this utility model.

[0036] Legend:

[0037] 1. Fixed frame; 2. Hydraulic cylinder; 3. Lifting frame; 4. Connecting rod one; 5. Transmission mechanism; 501. Rack one; 502. Gear; 503. Rack two; 6. Connecting rod two; 7. Sliding frame; 8. Connecting rod; 9. Guardrail; 10. Hydraulic components; 1001. Hydraulic pump station; 1002. Oil supply pipe; 11. Base; 12. Electric wheel; 13. Crossbeam; 14. Motor; 15. Belt pulley one; 16. Synchronous belt; 17. Belt pulley two; 18. Positive and negative lead screw; 19. Adjusting frame; 20. Limit block; 21. Lifting rope. Detailed Implementation

[0038] 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.

[0039] Reference Figures 1-3 An embodiment of this utility model provides a gantry crane device, including a fixed frame 1, a hydraulic cylinder 2 fixedly connected to the outer wall of the fixed frame 1, a lifting frame 3 fixedly connected to the output end of the hydraulic cylinder 2, the outer wall of the lifting frame 3 slidably connected to the inside of the fixed frame 1, a connecting rod 4 fixedly connected to the outer wall of the lifting frame 3, a transmission mechanism 5 connected to the connecting rod 4, a connecting rod 6 connected to the transmission mechanism 5, a sliding frame 7 fixedly connected to the outer wall of the connecting rod 6, the outer wall of the sliding frame 7 slidably connected to the inside of the fixed frame 1, a connecting rod 8 rotatably connected to the outer wall of the sliding frame 7, a guardrail 9 rotatably connected to the outer wall of the connecting rod 8, and the outer wall of the guardrail 9 rotatably connected to the outer wall of the fixed frame 1. The device of the fixed frame 1 is equipped with a hydraulic component 10.

[0040] Specifically, the guardrail 9 is divided into two groups and set on both sides of the fixed frame 1. The fixed frame 1 fixes the hydraulic cylinder 2, which can drive the lifting frame 3 to slide, thereby raising and lowering the lifting frame 3. The fixed frame 1 can support the sliding of the lifting frame 3. When the lifting frame 3 rises, the lifting frame 3 drives the connecting rod 1 4 to rise. The connecting rod 1 4 drives the connecting rod 2 6 to fall through the transmission mechanism 5. The fall of the connecting rod 2 6 can make the sliding frame 7 slide. The sliding frame 7 drives the connecting rod 8 to rotate. The connecting rod 8 drives the guardrail 9 to rotate. The guardrail 9 on both sides of the same group rotate in opposite directions. The guardrail 9 can provide protection and prevent people from being injured by falling objects.

[0041] Reference Figure 1 The hydraulic assembly 10 includes a hydraulic pump station 1001. The outer wall of the hydraulic pump station 1001 is disposed on the outer wall of the fixed frame 1. An oil supply pipe 1002 is disposed on the outer wall of the hydraulic pump station 1001. The oil supply pipe 1002 is connected to the outer wall of the hydraulic cylinder 2.

[0042] Specifically, when the hydraulic assembly 10 is working, the hydraulic pump station 1001 on the fixed frame 1 is started, which pressurizes and delivers the hydraulic oil in the oil tank through the oil supply pipe 1002. The high-pressure hydraulic oil flows into the hydraulic cylinder 2 along the oil supply pipe 1002, pushing the piston to make linear motion in the cylinder, thereby converting hydraulic energy into mechanical energy.

[0043] Reference Figure 3 The transmission mechanism 5 includes a rack 501, the outer wall of which is fixedly connected to the outer wall of the connecting rod 4, the outer wall of which is slidably connected to the inside of the fixed frame 1, the tooth end of the rack 501 is meshed with a gear 502, the outer wall of the gear 502 is rotatably connected to the outer wall of the fixed frame 1, the tooth end of the gear 502 is meshed with a rack 503, and the outer wall of the rack 503 is fixedly connected to the outer wall of the connecting rod 6.

[0044] Specifically, when connecting rod 4 drives rack 501 to slide, the fixed frame 1 supports and restricts the sliding of rack 501, rack 501 drives gear 502 to rotate, the fixed frame 1 supports the rotation of gear 502, gear 502 drives rack 2 503 to slide, rack 1 501 and rack 2 503 slide in opposite directions, which can transmit the power between connecting rod 4 and connecting rod 2 6.

[0045] Reference Figure 1 The lower surface of the fixed frame 1 is fixedly connected to the base 11, and the lower surface of the base 11 is provided with an electric wheel 12.

[0046] Specifically, depending on the required location on site, it can be moved to the designated location via its own remote control. The bottom of the fixed frame 1 is equipped with four sets of electric wheels 12, which are controlled by the remote control and can move the entire gantry crane.

[0047] Reference Figure 4A crossbeam 13 is fixedly connected to the upper surface of the lifting frame 3. A motor 14 is installed on the outer wall of the crossbeam 13. A pulley 15 is fixedly installed at the output end of the motor 14. A synchronous belt 16 is connected to the outer wall of the pulley 15. A pulley 2 17 is connected to the synchronous belt 16. The outer wall of the pulley 2 17 is rotatably connected to the outer wall of the lifting frame 3.

[0048] Specifically, the lifting frame 3 fixes the crossbeam 13, the crossbeam 13 supports the rotation of the second pulley 17, and the starting motor 14 drives the output pulley 15 to rotate. The first pulley 15 rotates synchronously with the second pulley 17 via the synchronous belt 16.

[0049] Reference Figure 4 Both pulley 17 and pulley 15 are fixedly connected to the outer walls of positive and negative screws 18. The outer walls of the positive and negative screws 18 are threadedly connected to the adjustment frame 19. The outer walls of the adjustment frame 19 are slidably connected to the inside of the crossbeam 13. Limit blocks 20 are fixedly connected to both outer walls of the adjustment frame 19. The outer walls of the adjustment frame 19 are provided with suspension ropes 21.

[0050] Specifically, pulley 15 and pulley 27 can simultaneously drive the positive and negative lead screws 18 to rotate. The outer wall of the positive and negative lead screws 18 is provided with a set of two adjustment frames 19. One set of adjustment frames 19 slides in opposite directions. The adjustment frames 19, together with the limit block 20, can adjust the position of the lifting rope 21 to adapt to objects of different widths. The lifting rope 21 is used to contact and lift objects.

[0051] Working principle: When using this device, the hydraulic pump station 1001 in the hydraulic assembly 10 is started, and the high-pressure hydraulic oil is delivered through the oil supply pipe 1002. The high-pressure hydraulic oil flows into the hydraulic cylinder 2, pushing the piston to move linearly in the cylinder. The hydraulic cylinder 2 drives the lifting frame 3 to slide along the fixed frame 1, realizing lifting. The lifting frame 3 rises and drives the connecting rod 4 to rise synchronously. The connecting rod 4 drives the rack 501 connected to it to slide stably. The sliding of the rack 501 drives the gear 502 to rotate. The rotation of the gear 502 drives the rack 503 to slide in the opposite direction, transmitting power to the connecting rod 6, causing it to descend. The descent of the connecting rod 6 drives the sliding frame 7 to slide, which in turn drives the connecting rod 8 to rotate. The connecting rod 8 causes the guardrail 9 to rotate, forming a guardrail and ensuring the safety of personnel in the working area. When the lifting frame 3 descends, the guardrail 9 rises.

[0052] This device can move the entire gantry crane to a designated location on site by rotating the four sets of electric wheels 12 at the bottom of the fixed frame 1. During hoisting operations, the motor 14 is started, which drives the output pulley 15 to rotate. The synchronous belt 16 then drives the pulley 17 to rotate simultaneously. Both of these drive the positive and negative lead screws 18 on both sides to rotate. The adjustment frame 19 on the outer wall of the positive and negative lead screws 18 slides in opposite directions under their drive, cooperating with the limit block 20 to precisely adjust the position of the hoisting rope 21 to accommodate objects of different widths.

[0053] 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 gantry crane device, comprising a fixed frame (1), characterized in that: A hydraulic cylinder (2) is fixedly connected to the outer wall of the fixed frame (1). A lifting frame (3) is fixedly connected to the output end of the hydraulic cylinder (2). The outer wall of the lifting frame (3) is slidably connected to the inside of the fixed frame (1). A connecting rod (4) is fixedly connected to the outer wall of the lifting frame (3). A transmission mechanism (5) is connected to the connecting rod (4). A connecting rod (6) is connected to the transmission mechanism (5). A sliding frame (7) is fixedly connected to the outer wall of the connecting rod (6). The outer wall of the sliding frame (7) is slidably connected to the inside of the fixed frame (1). A connecting rod (8) is rotatably connected to the outer wall of the sliding frame (7). A guardrail (9) is rotatably connected to the outer wall of the connecting rod (8). The outer wall of the guardrail (9) is rotatably connected to the outer wall of the fixed frame (1). The equipment of the fixed frame (1) is equipped with a hydraulic component (10).

2. The gantry crane device according to claim 1, characterized in that: The hydraulic assembly (10) includes a hydraulic pump station (1001), the outer wall of which is disposed on the outer wall of the fixed frame (1), and an oil supply pipe (1002) is disposed on the outer wall of the hydraulic pump station (1001), which is connected to the outer wall of the hydraulic cylinder (2).

3. The gantry crane device according to claim 1, characterized in that: The transmission mechanism (5) includes a rack (501), the outer wall of which is fixedly connected to the outer wall of the connecting rod (4), the outer wall of which is slidably connected to the inside of the fixed frame (1), the tooth end of which is meshed with a gear (502), the outer wall of which is rotatably connected to the outer wall of the fixed frame (1), the tooth end of which is meshed with a rack (503), and the outer wall of which is fixedly connected to the outer wall of the connecting rod (6).

4. A gantry crane device according to claim 1, characterized in that: The lower surface of the fixed frame (1) is fixedly connected to a base (11), and the lower surface of the base (11) is provided with an electric wheel (12).

5. A gantry crane device according to claim 1, characterized in that: A crossbeam (13) is fixedly connected to the upper surface of the lifting frame (3). A motor (14) is provided on the outer wall of the crossbeam (13). A pulley (15) is fixedly provided at the output end of the motor (14).

6. A gantry crane device according to claim 5, characterized in that: The outer wall of the first pulley (15) is connected to a synchronous belt (16), the synchronous belt (16) is connected to a second pulley (17), and the outer wall of the second pulley (17) is rotatably connected to the outer wall of the lifting frame (3).

7. A gantry crane device according to claim 6, characterized in that: Both pulley 2 (17) and pulley 1 (15) are fixedly connected to the outer walls of positive and negative lead screws (18), and the outer walls of the positive and negative lead screws (18) are threadedly connected to the adjustment frame (19), and the outer walls of the adjustment frame (19) are slidably connected to the inside of the crossbeam (13).

8. A gantry crane device according to claim 7, characterized in that: Limiting blocks (20) are fixedly connected to both outer walls of the adjustment frame (19), and a hanging rope (21) is provided on the outer wall of the adjustment frame (19).

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