A suspended double girder crane

Abstract

This utility model discloses a suspended double-girder crane, including two crossbeams. Each crossbeam has a slide rail on its upper surface, and a lifting trolley is slidably connected between the two slide rails. The lifting trolley has an adjustable hook on its lower side and also includes a cleaning mechanism. The cleaning mechanism includes a cleaning brush, bristles, a fixing rod, a mounting opening, and a fixing component. The outer surface of the lifting trolley is fitted with evenly distributed cleaning brushes. Each cleaning brush has a U-shaped structure with an opening on its lower side, and bristles are provided inside the opening. The bristles are in contact with the outer surface of the adjacent slide rails. The upper surface of each cleaning brush has a fixing rod. This suspended double-girder crane has cleaning mechanisms installed on both sides of the lifting trolley for easy disassembly and replacement. During the operation of the lifting trolley, the bristles on the cleaning brushes sweep dust and impurities to both sides of the slide rails, preventing dust and impurities from affecting the movement of the lifting trolley.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically a suspended double-girder crane. Background Technology

[0002] Suspended double girder cranes are a common type of lifting equipment, characterized by high load-bearing capacity, high stability, and flexible operation. They are widely used in industries such as precision machinery, automobile manufacturing, new energy, new materials, and precision electronics.

[0003] The existing suspended double girder crane mainly consists of straight rails, crane main beam, lifting trolley, control system, etc. During operation, the lifting trolley moves laterally along the rails laid on the main beam until the hook moves above the load. The load is then hung on the hook below, and then the load is lifted and transported to a suitable position.

[0004] Existing suspended double girder cranes have the following problems: Suspended double girder cranes are generally installed at high locations, making it inconvenient to clean the slide rails. The accumulated dust and impurities will increase the friction of the crane trolley during movement, leading to running jams, increased vibration, and accelerated wear of the slide rails and wheels, posing safety hazards. Therefore, we propose a suspended double girder crane. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a suspended double-girder crane with cleaning mechanisms that are easy to disassemble and replace installed on both sides of the crane trolley. During the operation of the crane trolley, the bristles on the cleaning brush sweep dust and impurities to both sides of the slide rail, so as to avoid dust and impurities affecting the movement of the crane trolley. This can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a suspended double-girder crane, comprising two crossbeams, each crossbeam having a slide rail on its upper surface, a lifting trolley slidably connected between the two slide rails, an adjustable hook on the lower side of the lifting trolley, and a cleaning mechanism.

[0007] The cleaning mechanism includes a cleaning brush, bristles, fixing rods, mounting ports, and fixing components. The outer surface of the crane trolley is fitted with evenly distributed cleaning brushes. Each cleaning brush has a U-shaped structure with an opening at the bottom. The inside of the opening of the cleaning brush is equipped with bristles, which contact the outer surface of the adjacent slide rails. Fixing rods are provided on the upper surface of each cleaning brush. Mounting ports are provided on the front and rear sides of both the left and right sides of the crane trolley, and the fixing rods are inserted into the interior of the adjacent mounting ports. Fixing components are provided inside the crane trolley. Cleaning mechanisms that are easy to disassemble and replace are installed on both sides of the crane trolley. During the operation of the crane trolley, the bristles on the cleaning brushes sweep dust and impurities to both sides of the slide rails, preventing dust and impurities from affecting the movement of the crane trolley.

[0008] Furthermore, the fixing component includes a limiting rod, a slider, a plug rod, and a plug hole. The front and rear sides of the inside of the crane trolley are provided with sliding grooves, and the left and right sides of the inside of the sliding grooves are provided with limiting rods. A slider is slidably connected between the two limiting rods. The left and right sides of the slider near the center of the crane trolley are provided with plug rods. The upper end of the fixing rod is provided with a plug hole, and the plug rod is inserted into the inside of the adjacent plug hole to facilitate fixing the fixing rod in the installation port.

[0009] Furthermore, the fixing assembly also includes a lead screw and a turntable. The inside of each slide is rotatably connected to a lead screw, and the outer surface of each lead screw is threadedly connected to a threaded hole on the slider on the same side. A turntable is provided at the end of the lead screw away from the center of the crane trolley to facilitate driving the slider to move.

[0010] Furthermore, the upper surface of the lifting trolley is provided with fixed seats on both the front and rear sides. A winding roller is rotatably connected between the two fixed seats via a rotating shaft. A lifting rope is provided in the rope groove on both the left and right sides of the winding roller. One end of the lifting rope is fixedly connected to the outer surface of the winding roller, and the other end of the lifting rope passes around the roller on the hook and is fixedly connected to the outer surface of the winding roller, which facilitates the control of the hook movement.

[0011] Furthermore, the upper surface of the crane trolley is equipped with a motor, the output shaft of which is fixedly connected to the rear end of the rotating shaft, and the input end of the motor is electrically connected to the output end of an external controller to facilitate driving the winding roller to rotate.

[0012] Furthermore, rotating rods are rotatably connected to the left and right sides of the lower surface of the crane trolley, and wheels are fixedly fitted on the front and rear sides of the outer surface of the rotating rods. The outer surfaces of the wheels are in contact with the upper surfaces of the adjacent slide rails, which facilitates the movement of the crane trolley.

[0013] Furthermore, the crane trolley is equipped with two motors on both the left and right sides of its rear side. The front end of the output shaft of each motor is fixedly connected to the rear end of the rotating rod on the same side. The input end of the motor is electrically connected to the output end of an external controller to facilitate driving the wheels to rotate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This suspended double-girder crane has the following advantages:

[0015] Because of the presence of the cleaning brush and bristles, the hoisting trolley sweeps dust and impurities on the slide rail to both sides of the slide rail during movement, preventing dust and impurities from contacting the wheels and affecting the movement of the hoisting trolley. When the cleaning brush needs to be replaced after a period of operation, the turntable is rotated to drive the lead screw to rotate. Under the restriction of the limit rod, the slider slides in the slide groove until the insertion rod leaves the insertion hole. The fixing rod is then released, and the cleaning brush and the fixing rod can be pulled out of the installation port for replacement. The replacement of the cleaning brush is convenient and saves time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the lifting trolley of this utility model;

[0018] Figure 3 This is a cross-sectional structural schematic diagram of the lifting trolley of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of point A of this utility model;

[0020] Figure 5 This is a rear side view of the lifting trolley of this utility model.

[0021] In the diagram: 1. Crossbeam, 2. Lifting trolley, 3. Sweeping mechanism, 31. Sweeping brush, 32. Brush bristles, 33. Fixing rod, 34. Mounting port, 35. Fixing component, 351. Limiting rod, 352. Sliding block, 353. Inserting rod, 354. Inserting hole, 355. Lead screw, 356. Turntable, 4. Slide rail, 5. Hook, 6. Winding roller, 7. Lifting rope, 8. Motor 1, 9. Rotating rod, 10. Wheel, 11. Motor 2. 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] Please see Figure 1-5This embodiment provides a technical solution: a suspended double-girder crane, including two crossbeams 1. Each crossbeam 1 has a slide rail 4 on its upper surface, and a lifting trolley 2 is slidably connected between the two slide rails 4. The lower side of the lifting trolley 2 has an adjustable hook 5. It also includes a cleaning mechanism 3. The upper surface of the lifting trolley 2 has fixed seats on both the front and rear sides. A winding roller 6 is rotatably connected between the two fixed seats via a rotating shaft. Rope grooves on both sides of the winding roller 6 are provided with lifting ropes 7. One end of each lifting rope 7 is fixedly connected to the outer surface of the winding roller 6, and the other end of each lifting rope 7 passes around a roller on the hook 5 and is fixedly connected to the outer surface of the winding roller 6. A motor 8 is provided on the upper surface of the lifting trolley 2. The output shaft of the motor 8 is fixedly connected to the rear end of the rotating shaft. The input end of the motor 8 is electrically connected to the output end of an external controller. Rotating rods 9 are rotatably connected to both the left and right sides of the lower surface of the lifting trolley 2. The outer surface of the rotating rods 9 has two... Wheels 10 are fixedly mounted on both sides, and the outer surface of each wheel 10 is in contact with the upper surface of the adjacent slide rail 4. Motors 2 are mounted on both the left and right sides of the rear side of the trolley 2. The front end of the output shaft of each motor 2 is fixedly connected to the rear end of the rotating rod 9 on the same side. The input end of each motor 2 is electrically connected to the output end of an external controller. During operation, the motor 1 works under the control of the external controller. The output shaft of the motor 1 drives the winding roller 6 to rotate through the rotating shaft, causing the lifting rope 7 to unwind and the hook 5 to move downward. At the same time, the motor 2 works, and the output shaft of the motor 2 drives the rotating rod 9 to rotate. The wheels 1 rotate accordingly, causing the trolley 2 to move left and right along the slide rail 4 until the hook 5 moves above the load. The load is then hung on the hook 5. The output shaft of the motor 1 reverses, causing the winding roller 6 to rotate in the opposite direction, winding the lifting rope 7. The load is then moved upward through the hook 5. The movement of the trolley 2 transports the load to a suitable position.

[0024] Cleaning mechanism 3: It includes a cleaning brush 31, brush bristles 32, fixing rods 33, mounting ports 34, and fixing components 35. The outer surface of the lifting trolley 2 is fitted with evenly distributed cleaning brushes 31. The cleaning brushes 31 have a U-shaped structure with an opening on the lower side. The inside of the opening of the cleaning brush 31 is provided with brush bristles 32, and the brush bristles 32 are all in contact with the outer surface of the adjacent slide rails 4. The upper surface of the cleaning brushes 31 is provided with fixing rods 33. Mounting ports 34 are opened on the front and rear sides of the left and right sides of the lifting trolley 2. The fixing rods 33 are inserted into the inside of the adjacent mounting ports 34. The inside of the lifting trolley 2 is provided with fixing components 35, which include a limiting rod 351, a slider 352, and an insert rod 353. The lifting trolley 2 has sliding grooves on both the front and rear sides inside the insertion holes 354. Limiting rods 351 are provided on both the left and right sides of the sliding grooves. A slider 352 is slidably connected between the two limiting rods 351. Insertion rods 353 are provided on both the left and right sides of the slider 352 near the center of the lifting trolley 2. Insertion holes 354 are provided at the upper ends of the fixing rods 33. Insertion rods 353 are inserted into adjacent insertion holes 354. The fixing assembly 35 also includes a lead screw 355 and a turntable 356. Lead screws 355 are rotatably connected inside the sliding grooves. The outer surface of the lead screw 355 is threadedly connected to the threaded holes on the slider 352 on the same side. (The exposed portion of the outer surface of the lead screw 355 can be...) The slide block 352 is equipped with corrugated pipes, which are fixedly connected between the left side of the slide block 352 and the left wall of the slide groove, and between the right side of the slide block 352 and the right wall of the slide groove. The corrugated pipes adapt to the movement of the slide block 352, always covering and shielding the lead screw 355, ensuring the sealing and lubrication of the lead screw 355. A turntable 356 is provided at the end of the lead screw 355 away from the center of the trolley 2. The trolley 2 moves the heavy object to a suitable position. Due to the presence of the cleaning brush 31 and brush bristles 32, the trolley 2 sweeps the dust and impurities on the slide rail 4 to both sides of the slide rail 4 during the movement of the trolley 2, preventing the dust and impurities from contacting the wheels 10 and affecting the trolley. When the cleaning brush 31 needs to be replaced after a period of operation, move the trolley to the maximum position of one end of the slide rail 4. While replacing the cleaning brush 31, the operator cleans the dust and impurities at the end of the slide rail 4. Rotate the turntable 356 to drive the lead screw 355 to rotate. Under the restriction of the limit rod 351, the rotation of the lead screw 355 drives the threaded slider 352 to slide in the slide groove until the insertion rod 353 leaves the insertion hole 354, releasing the fixation of the fixing rod 33. Then the cleaning brush 31 and the fixing rod 33 can be pulled out from the installation port 34. After the replacement is completed, rotate the turntable 356 in the opposite direction to fix the cleaning brush 31 back onto the trolley 2.

[0025] The working principle of the suspended double-girder crane provided by this utility model is as follows: During operation, the motor 8 is controlled by an external controller. The output shaft of the motor 8 drives the winding roller 6 to rotate via a rotating shaft, causing the lifting rope 7 to unwind and the hook 5 to move downward. At the same time, the motor 11 operates, and the output shaft of the motor 11 drives the rotating rod 9 to rotate. The wheel 1 rotates accordingly, causing the trolley 2 to move left and right along the slide rail 4 until the hook 5 moves above the load. The load is then hung on the hook 5. The output shaft of the motor 8 reverses, driving the winding roller 6 to rotate in the opposite direction, winding the lifting rope 7. The load is then moved upward through the hook 5. The movement of the trolley 2 transports the load to a suitable position. Due to the presence of the cleaning brush 31 and brush bristles 32, the trolley 2, during its movement, uses the brush bristles 32 to clean the sliding rail. Dust and impurities on rail 4 are swept to both sides of the slide rail 4 to prevent them from contacting the wheels 10 and affecting the movement of the crane trolley. When the cleaning brush 31 needs to be replaced after a period of operation, the crane trolley is moved to the maximum extent at one end of the slide rail 4. The operator goes up to replace the cleaning brush 31 and cleans the dust and impurities at the end of the slide rail 4. The turntable 356 is rotated to drive the lead screw 355 to rotate. Under the restriction of the limit rod 351, the rotation of the lead screw 355 drives the threaded slider 352 to slide in the slide groove until the insertion rod 353 leaves the insertion hole 354, releasing the fixation of the fixing rod 33. Then the cleaning brush 31 and the fixing rod 33 can be pulled out from the installation port 34. After the replacement is completed, the turntable 356 is rotated in the opposite direction to fix the cleaning brush 31 back onto the crane trolley 2.

[0026] It is worth noting that the motor 8 and motor 11 disclosed in the above embodiments can be YZR series, and the external controller controls the operation of motor 8 and motor 11 using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A suspended double-girder crane, comprising two crossbeams (1), each crossbeam (1) having a slide rail (4) on its upper surface, a trolley (2) slidably connected between the two slide rails (4), and an adjustable hook (5) on the lower side of the trolley (2), characterized in that: It also includes cleaning mechanisms (3); Cleaning mechanism (3): It includes a cleaning brush (31), bristles (32), fixing rods (33), mounting ports (34) and fixing components (35). The outer surface of the lifting trolley (2) is fitted with evenly distributed cleaning brushes (31). The cleaning brush (31) is a U-shaped structure with an opening on the lower side. The inside of the opening of the cleaning brush (31) is provided with bristles (32). The bristles (32) are all in contact with the outer surface of the adjacent slide rail (4). The upper surface of the cleaning brush (31) is provided with fixing rods (33). Mounting ports (34) are opened on the front and rear sides of the left and right sides of the lifting trolley (2). The fixing rods (33) are all inserted into the inside of the adjacent mounting ports (34). The inside of the lifting trolley (2) is provided with fixing components (35).

2. A suspended double-girder crane according to claim 1, characterized in that: The fixing component (35) includes a limiting rod (351), a slider (352), an insert rod (353), and an insertion hole (354). The front and rear sides of the inside of the crane trolley (2) are provided with sliding grooves. The left and right sides of the inside of the sliding grooves are provided with limiting rods (351). A slider (352) is slidably connected between the two limiting rods (351). The left and right sides of the side of the slider (352) near the center of the crane trolley (2) are provided with insert rods (353). The upper end of the fixing rod (33) is provided with an insertion hole (354). The insert rods (353) are inserted into the interior of the adjacent insertion holes (354).

3. A suspended double-girder crane according to claim 2, characterized in that: The fixing component (35) also includes a lead screw (355) and a turntable (356). The inside of the slide is rotatably connected to the lead screw (355). The outer surface of the lead screw (355) is threadedly connected to the threaded hole on the slider (352) on the same side. The end of the lead screw (355) away from the center of the crane trolley (2) is provided with a turntable (356).

4. A suspended double-girder crane according to claim 1, characterized in that: The upper surface of the lifting trolley (2) is provided with fixed seats on both the front and rear sides. A winding roller (6) is rotatably connected between the two fixed seats through a rotating shaft. A lifting rope (7) is provided in the rope groove on both the left and right sides of the winding roller (6). One end of the lifting rope (7) is fixedly connected to the outer surface of the winding roller (6), and the other end of the lifting rope (7) passes around the roller on the hook (5) and is fixedly connected to the outer surface of the winding roller (6).

5. A suspended double-girder crane according to claim 4, characterized in that: The upper surface of the crane trolley (2) is provided with a motor (8), the output shaft of the motor (8) is fixedly connected to the rear end of the rotating shaft, and the input end of the motor (8) is electrically connected to the output end of an external controller.

6. A suspended double-girder crane according to claim 1, characterized in that: The lower surface of the trolley (2) is rotatably connected to the left and right sides of the trolley. The outer surface of the trolley (9) is fixedly fitted with wheels (10) on the front and rear sides. The outer surface of the wheels (10) is in contact with the upper surface of the adjacent slide rail (4).

7. A suspended double-girder crane according to claim 6, characterized in that: The crane trolley (2) has motors (11) on both the left and right sides of its rear side. The front end of the output shaft of each motor (11) is fixedly connected to the rear end of the rotating rod (9) on the same side. The input end of the motor (11) is electrically connected to the output end of an external controller.

Images