Cable winding device and crane

Abstract

The utility model provides a cable winding device which comprises a winding drum arranged on a crane in a rotating mode and a motor driving the winding drum to rotate and further comprises a rotating frame, two first idler wheels, two shaft pin sensors, two limiting switches and a controller. The rotating face of the rotating frame and the rotating face of the winding drum are coplanar, and the shaft pin sensors are fixedly arranged on the left side and the right side of the end, away from the crane, of the rotating frame. The first roller is rotationally connected with the shaft pin sensor; the two limiting switches are located on the rotating track of the rotating frame and located on the two sides below the rotating center of the rotating frame. The utility model solves the problem that the winding speed of the winding drum is not matched with the moving speed of the crane, so that the cable can be better matched with the work of the crane.

Description

TECHNICAL FIELD

[0001] The utility model relates to reel technical field especially relates to a cable winding device and crane. BACKGROUND

[0002] In today's industrial field, the crane as an important hoisting equipment, its numerous mechanical structures often need to rely on power supply in the running process. However, the crane often needs to move between different positions when performing tasks, which requires its power supply system to also have the ability of mobile power supply. When the crane is moving, if the rotating speed of the reel is too slow or too fast, the cable slack will contact the ground and cause damage, or the cable is easy to wind and arrange disorderly, which not only affects the normal winding and unwinding of the cable, but also may cause the reel to appear jamming and pulling phenomenon in the operation process. The existence of these problems not only increases the difficulty of maintenance, but also may cause a series of serious consequences, such as the breakage of the cable and the damage of the reel. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a cable winding device, which solves the problems of the winding speed of the reel and the moving speed of the crane not matching, the cable winding or causing damage and the like in the prior art.

[0004] According to the embodiment of the utility model, a cable winding device, including reel, fixed connection frame, rotating frame, a plurality of first gyro wheel, a plurality of axle pin sensor and two limit switches, the rotating shaft of reel and fixed connection frame are opposite fixed, one end of rotating frame and fixed connection frame rotation connection, the rotating surface of rotating frame and the rotating surface of reel are coplanar, the axle pin sensor is fixedly arranged on rotating frame and is left and right symmetrical;The first gyro wheel and the axle pin sensor rotation connection;Two limit switches are located on the rotating track of rotating frame and are located below the two sides of rotating center, the motor is used for driving the rotation of reel, the motor, axle pin sensor, limit switch and controller are electrically connected.

[0005] The technical principle of the utility model is that when the crane moves along the guide rail, the cable and the first gyro wheel roll contact, the cable is straightened or relaxed, which drives the first gyro wheel to move to different positions, and the detection data of the first gyro wheel is adjusted by the axle pin sensor and the limit switch to adjust the rotating speed of the motor driving reel.

[0006] As preferred, the rotating frame is located below the side of the reel.

[0007] Preferably, two second rollers are provided between the first roller and the drum. The two second rollers are parallel and rotatably connected to the fixed connection frame. The outer side of the second rollers is provided with an annular groove, and the distance between the two second rollers is adapted to the cable diameter.

[0008] Preferably, a third roller is provided on the lower side of the first roller, and the third roller is rotatably connected to the fixed connecting frame.

[0009] Preferably, the two ends of the first roller rotation shaft are slidably connected to the fixed connection frame.

[0010] Preferably, the rotating frame has a triangular structure, and the third roller is symmetrically arranged relative to the vertical surface that rotates through the rotating frame.

[0011] Preferably, the fixed connection frame is provided with an observation hole.

[0012] The rotating frame is fixedly equipped with a contact block for contacting the limit switch.

[0013] This utility model also provides a crane, including any one of the cable winding devices described above, wherein the cable winding device is located at the bottom of the crane.

[0014] Compared to existing technologies, this invention has the following advantages: By adjusting the cable tension during crane movement, the first roller and cable maintain rolling contact. The cable's condition is determined by monitoring the rotational speed and position of the first roller. The controller uses data collected from the shaft pin sensor and limit switch to control the motor's speed, ensuring the drum rotates at an appropriate speed and preventing cable entanglement or breakage due to tension or slack. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the fixed connection frame of this utility model.

[0017] In the above attached figures: 1. Crane; 2. Cable; 3. Fixed connection frame; 4. Drum; 5. Third roller; 6. Limit switch; 7. Contact block; 8. Shaft pin sensor; 9. Rotating frame; 10. Second roller; 11. First roller; 12. Connecting plate. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1As shown in the figure, this utility model embodiment proposes a cable winding device, including a drum 4, a fixed connecting frame 3, a rotating frame 9, several first rollers 11, several shaft pin sensors 8, two limit switches 6, and a controller. The rotating shaft of the drum 4 is fixed relative to the fixed connecting frame 3. One end of the rotating frame 9 is rotatably connected to the fixed connecting frame 3. The rotating surface of the rotating frame 9 and the rotating surface of the drum 4 are coplanar. The shaft pin sensors 8 are fixedly installed on the rotating frame 9 at a position away from the crane 1 and are symmetrically arranged on both sides. The first rollers 11 are rotatably connected to the shaft pin sensors 8. The two limit switches 6 are located on the rotation trajectory of the rotating frame 9 and on both sides below the rotation center of the rotating frame 9. In this embodiment, the cable winding device is fixedly installed on the crane 1. The crane 1 moves along the guide rail. One end of the cable 2 is connected to the power supply at the end of the guide rail, and the other end is connected to the drum 4. A crossbeam is provided on the crane 1 near the guide rail. The drum 4 and the fixed connecting frame 3 are respectively fixedly connected to the crossbeam. A connecting plate 12 for connection is provided between the drum 4 and the crossbeam. The pin sensor 8 and the rotating frame 9 are fixedly connected on the left and right sides, facing downwards. When the cable 2 is taut, it contacts the first roller 11 on the side away from the drum 4; when the cable 2 gradually slacks, it contacts the first roller 11 closer to the drum 4. The limit switch 6 is used to control the rotation trajectory of the rotating frame 9. The pin sensor 8 is used to determine the lateral pressure exerted on the first roller 11 when the cable 2 and the first roller 11 are in rolling contact. The motor is used to drive the drum 4 to rotate, and the motor, pin sensor 8, limit switch 6, and controller are electrically connected. In this embodiment, two first rollers and two pin sensors 8 are provided. When the drum 4 and the fixed connection frame 3 are far apart, the number of first rollers 11 can be increased to improve the guiding ability of the cable. Increasing the number of first rollers 11 on the rotating frame 9 can also distribute the load on the first rollers 11. The motor body and the crossbeam are fixedly connected, and the motor output shaft and the drum shaft are fixedly connected.

[0020] Preferably, the rotating frame 9 is located to the side and below the drum 4. The cable 2 falls downwards under the influence of gravity, allowing the first roller 11 on the rotating frame 9 to accurately sense the tension of the cable 2.

[0021] Preferably, two second rollers 10 are arranged between the first roller 11 and the drum 4. The two second rollers 10 are parallel and rotatably connected to the fixed connecting frame 3. The outer surface of each second roller 10 is provided with an annular groove, and the distance between the two second rollers 10 is adapted to the diameter of the cable 2. In this embodiment, the second rollers 10 are located above the rotating frame 9, and the two second rollers 10 clamp the cable 2, causing the cable 2 to move along a predetermined trajectory, thereby making effective contact between the first roller 11 and the cable 2.

[0022] Preferably, a third roller 5 is disposed on the lower side of the first roller 11, and the third roller 5 is rotatably connected to the fixed connecting frame 3. The third roller 5 facilitates the movement of the cable 2 along the moving trajectory of the crane 1.

[0023] Preferably, both ends of the rotating shaft of the first roller 11 are slidably connected to the fixed connecting frame 3. The fixed connecting frame 3 serves as a guide and support.

[0024] Preferably, the rotating frame 9 has a triangular structure, and the third roller 5 is symmetrically arranged relative to the vertical plane that rotates through the rotating frame 9. That is, the first roller 11 is located at the two lower corners of the triangular structure.

[0025] Preferably, the fixed connection frame 3 is provided with an observation hole to facilitate inspection and maintenance by looking through the inside of the fixed connection frame 3.

[0026] Preferably, a contact block 7 for contacting the limit switch 6 is fixedly provided on the rotating frame 9. In this embodiment, the contact block 7 is a circular block, which reduces the impact force generated when the rotating frame 9 and the limit switch 6 come into contact and extends the service life.

[0027] This utility model also includes a crane, comprising the cable winding device described in any one of the above-mentioned embodiments, wherein the cable winding device is located at the bottom of the crane.

[0028] Work steps

[0029] S1: Collect the data L measured by the shaft pin sensor 8 and the data X measured by the limit switch 6;

[0030] S2: If the limit switch 6 on the side away from the drum 4 is triggered, it is determined that the tension of the cable 2 is too large and the motor rotation speed needs to be increased; if the limit switch 6 on the side close to the drum 4 is triggered, it is determined that the cable 2 is too slack and the motor rotation speed needs to be reduced.

[0031] S3: Fine-tune the motor rotation speed based on the data L measured by the shaft pin sensor 8;

[0032] S4: If no data L and X are generated, it can be determined that the operation is normal and no speed adjustment is required.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cable winding device, characterized in that: The device includes a motor, a controller, a drum (4), a fixed connecting frame (3), a rotating frame (9), several first rollers (11), several shaft pin sensors (8), and two limit switches (6). The rotating shaft of the drum (4) is fixed relative to the fixed connecting frame (3). One end of the rotating frame (9) is rotatably connected to the fixed connecting frame (3). The rotating surface of the rotating frame (9) is coplanar with the rotating surface of the drum (4). The shaft pin sensors (8) are fixedly mounted on the rotating frame (9) and are symmetrically arranged on the left and right sides. The first rollers (11) are rotatably connected to the shaft pin sensors (8). The two limit switches (6) are located on the rotation trajectory of the rotating frame (9) and on both sides below the rotation center of the rotating frame (9). The motor is used to drive the drum (4) to rotate. The motor, shaft pin sensors (8), limit switches (6) are electrically connected to the controller.

2. The cable winding device as described in claim 1, characterized in that: The rotating frame (9) is located on the side and below the drum (4).

3. The cable winding device as described in claim 2, characterized in that: Two second rollers (10) are provided between the first roller (11) and the drum (4). The two second rollers (10) are parallel and rotatably connected to the fixed connection frame (3). The second rollers (10) are provided with an annular groove on the outside. The distance between the two second rollers (10) is adapted to the diameter of the cable (2).

4. The cable winding device as described in claim 3, characterized in that: A third roller (5) is provided on the lower side of the first roller (11), and the third roller (5) is rotatably connected to the fixed connecting frame (3).

5. A cable winding device as described in claim 4, characterized in that: The two ends of the first roller (11) rotation axis are slidably connected to the fixed connection frame (3).

6. A cable winding device as described in claim 5, characterized in that: The rotating frame (9) has a triangular structure, and the third roller (5) is symmetrically arranged relative to the vertical surface that rotates through the rotating frame (9).

7. A cable winding device as described in claim 5, characterized in that: An observation hole is provided on the fixed connection frame (3).

8. A cable winding device as described in claim 1, characterized in that: The rotating frame (9) is fixedly provided with a contact block (7) for contacting the limit switch (6).

9. A crane, characterized in that: Includes any of the cable winding devices described above, wherein the cable winding device is located at the bottom of the crane.

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