Cable winding and unwinding device for 400hz power unit

Abstract

The utility model discloses a cable take -up equipment for 400HZ power unit, include: cable take -up device, the inside bushing of cable take -up device is equipped with cable, detection component, the utility model has the following beneficial effect: through detection component on cable take -up device, realize detection component when being pulled by cable, force rotation makes angle sensor real -time sensing measurement to the control unit in the back transmission of detected angle data to the identification judgment of detection data, namely when cable take -up device is pulled by external force, cable pulls the rotation of pivot column, makes the angle sensor detection rotation angle on pivot column and transmission electric signal, and the data detected is fed back to control unit, and control unit will identify the angle data increase that angle sensor detected, then sends out alarm signal, informs the operator of main body equipment and handles in time, avoids the situation that cable take -up device or airplane is damaged because of pulling and occurs.

Description

Technical Field

[0001] This utility model relates to the field of civil aviation equipment, and in particular to a cable winding and unwinding device for a 400HZ power supply unit. Background Technology

[0002] Currently, commonly used aircraft static inverter power cable retraction devices are directly installed on the main equipment (such as boarding bridges or special vehicles). When the aircraft static inverter power cable retraction device is connected to the aircraft and the boarding bridge or special vehicle needs to be evacuated, the aircraft static inverter power cable retraction device needs to be evacuated together with the boarding bridge. At this time, if the cable plug of the aircraft static inverter power cable retraction device is still connected to the aircraft, the cable plug of the aircraft static inverter power cable retraction device may be accidentally dragged during the evacuation of the main equipment, which may also affect the connected aircraft and cause safety accidents such as damage to equipment and aircraft. There is no timely alarm to notify the staff. Therefore, a cable retraction device for 400HZ power units is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a cable winding and unwinding device for 400Hz power supply units, which solves the problem that current frequency converter power cables cannot alarm and notify staff when being dragged.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A cable winding and unwinding device for a 400Hz power supply unit, comprising:

[0006] A cable winding and unwinding device, wherein a cable is sleeved inside the cable winding and unwinding device;

[0007] The detection component includes a lower rotating turntable disposed on the cable take-up and take-down device and an upper rotating turntable disposed above the lower rotating turntable. A rotating shaft column is provided between the lower rotating turntable and the upper rotating turntable. The bottom of the rotating shaft column is rotatably connected to the lower rotating turntable, and the top of the rotating shaft column is in contact with the upper rotating turntable. An angle sensor is installed on the top of the rotating shaft column, and the top of the angle sensor passes through the upper rotating turntable and extends above the upper rotating turntable.

[0008] The angle sensor is electrically connected to the alarm system via a PLC.

[0009] Furthermore, the lower rotating disk has a rotating hole in the middle that matches the rotating shaft column, the outer surface of the rotating shaft column is connected to the rotating hole by a bearing, and the bottom of the rotating shaft column is connected to the cable.

[0010] Further, an opening is provided at the position of the middle part of the upper rotating turntable where the angle sensor is located, and the angle sensor is located inside the opening.

[0011] Further, a lower rotating bracket is fixedly provided on the cable retracting and deploying device, and the outside of the lower rotating turntable is connected to the lower rotating bracket.

[0012] Further, a second mounting bracket is fixedly provided on the upper part of the lower rotating bracket. The second mounting bracket has a structure in the shape of a Chinese character 'Ri' (日), and the detection component is arranged inside one of the square shapes.

[0013] Further, two first mounting brackets are fixedly provided on one of the square shapes of the second mounting bracket, and the bottom of the first mounting bracket is fixedly connected to the upper rotating turntable.

[0014] Further, a displacement sensor is installed outside the rotating shaft column, and the displacement sensor is arranged at an included angle with the angle sensor.

[0015] Further, a plurality of mounting columns are fixedly provided on the lower rotating turntable.

[0016] Further, a tension spring is provided at the top of one of the mounting columns, and the other end of the tension spring is arranged outside the rotating shaft column. Hinges are respectively arranged at the top of the mounting column and outside the rotating shaft column, and both ends of the tension spring are connected to the two hinges respectively.

[0017] Further, a damping device is provided at the top of one of the mounting columns, and the other end of the damping device is connected to the outside of the rotating shaft column. Both ends of the damping device are rotatably connected to the mounting column and the rotating shaft column.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. Through the detection component on the cable retracting and deploying device, when the detection component is pulled by the cable, it rotates under force, enabling the angle sensor to sense and measure in real time, and transmitting the detected angle data back to the control unit. The control unit identifies and judges the detection data. That is, when the cable retracting and deploying device is pulled by an external force, the cable pulls the rotating shaft column to rotate, causing the angle sensor on the rotating shaft column to detect the rotation angle and transmit an electrical signal, and feeding the detected data back to the control unit. If the control unit identifies that the angle data detected by the angle sensor increases, it will send an alarm signal to notify the operator of the main equipment to handle it in time, avoiding the situation that the cable retracting and deploying device or the aircraft is damaged due to pulling.

[0020] 2. Through the rotating shaft between the lower and upper rotating turntables, in conjunction with the damping device and tension spring on the rotating shaft, the tension spring is stretched after the rotating shaft rotates to different angles. After the cable is pulled out, the tension spring retracts due to its elasticity and pulls the rotating shaft to rotate, returning the rotating shaft to its initial state. The damping device supports the rotating shaft, making it more stable when rotation is not required and preventing rotation under non-pulling conditions. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Figure 1 This is a three-dimensional schematic diagram of the whole system.

[0024] Figure 2 This is a magnified three-dimensional schematic diagram of the whole.

[0025] Illustration: 1. Angle sensor; 2. First mounting bracket; 3. Second mounting bracket; 4. Cable winding device; 5. Lower rotating bracket; 501. Lower rotating turntable; 6. Damping device; 7. Mounting column; 8. Tension spring; 9. Displacement sensor; 10. Upper rotating turntable; 11. Rotating shaft column. Detailed Implementation

[0026] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] This utility model embodiment provides a cable winding and unwinding device for power supply units and has an alarm function. As a self-alarm cable winding and unwinding device for power supply units, it is suitable for 400HZ power supply units. Next, this embodiment will be described using the self-alarm cable winding and unwinding device for 400HZ power supply units as an example.

[0030] It should be noted that the power supply unit includes the power supply body and cables used for power supply; the cable reeling equipment is used for reeling in and out the cables.

[0031] Please refer to the cable winding and unwinding device for a 400Hz power supply unit. Figure 1 and Figure 2 The system includes a cable winding device 4 and a detection component. The cable winding device 4 has a cable inside. The detection component includes a lower rotating turntable 501 on the cable winding device 4 and an upper rotating turntable 10 above the lower rotating turntable 501. A rotating shaft 11 is provided between the lower rotating turntable 501 and the upper rotating turntable 10. The bottom of the rotating shaft 11 is rotatably connected to the lower rotating turntable 501, and the top of the rotating shaft 11 is in contact with the upper rotating turntable 10. An angle sensor 1 is installed on the top of the rotating shaft 11. The top of the angle sensor 1 passes through the upper rotating turntable 10 and extends above the upper rotating turntable 10. The angle sensor 1 is electrically connected to an alarm system via a PLC.

[0032] like Figure 1 and Figure 2 As shown, the cable winding and unwinding device 4 is mainly used for the winding and unwinding of cables, ensuring that the cables can be smoothly unfolded to connect to relevant equipment when needed, and can be neatly stored when not in use, avoiding the cables from being messy and disorganized.

[0033] The lower rotating turntable 501 and the upper rotating turntable 10 together constitute the basic structure of the detection assembly, providing a support platform for the subsequent installation and rotation detection of the rotating shaft column 11. Through this upper and lower turntable structure design, the rotating shaft column 11 can be stably installed and the stability of the rotating shaft column 11 during rotation can be guaranteed, providing a reliable mechanical foundation for subsequent rotation detection.

[0034] As one of the core components of the detection assembly, the rotating shaft column 11 is rotatably connected to the lower rotating turntable 501 at its bottom, allowing the rotating shaft column 11 to rotate freely within a certain range, thereby realizing the detection of the rotation state. This rotatable connection method enables the rotating shaft column 11 to respond sensitively to external rotational forces and transmit rotation information to subsequent detection elements in a timely manner, thus ensuring accurate detection of the rotation state.

[0035] The top of the rotating shaft column 11 fits against the upper rotating turntable 10, providing a certain positioning and support function, ensuring that the rotating shaft column 11 will not wobble or deviate significantly during rotation.

[0036] Angle sensor 1 is used to detect the rotation angle of the rotating shaft column 11. By passing the top of angle sensor 1 through the upper rotating turntable 10 and extending it upwards, it is easy to connect to the external signal transmission line and accurately transmit the detected angle information. It can detect the rotation angle of the rotating shaft column 11 in real time and accurately, providing key data support for subsequent interlocking alarms and ensuring that an alarm can be issued in time when the rotation angle exceeds the normal range.

[0037] As an intelligent control device, the PLC (Programmable Logic Controller) can process and analyze the angle signal transmitted by the angle sensor 1. When the detected rotation angle exceeds the preset safety range, the PLC will trigger the alarm system to issue an alarm.

[0038] Operation Process: When the 400Hz power supply unit starts working, the cable winding and unwinding device 4 will wind and unwind the cable according to actual needs. During the process of the cable being plugged into the aircraft or other equipment and being pulled by the aircraft or other equipment, the rotating shaft column 11 will rotate. The rotating shaft column 11 rotates between the lower rotating turntable 501 and the upper rotating turntable 10. Its rotation angle information is detected in real time by the angle sensor 1 installed on the top. The angle sensor 1 transmits the detected angle signal to the PLC in the form of an electrical signal. The PLC analyzes and processes the received angle signal and compares it with the preset safe angle range. If the detected angle is within the safe range, the PLC does not take any action and the device works normally. If the detected angle exceeds the safe range, the PLC will immediately send a command to the alarm system to trigger the alarm system to issue an alarm signal, such as an audible alarm or a light alarm, to remind the operator to pay attention.

[0039] Please continue reading. Figure 1 and Figure 2 , a rotating hole adapted to the rotating shaft column 11 is provided in the middle of the lower rotating turntable 501. The outer surface of the rotating shaft column 11 is connected to the rotating hole by a bearing. The bottom of the rotating shaft column 11 is connected to a cable. An opening is provided at the position of the angle sensor 1 in the middle of the upper rotating turntable 10, and the angle sensor 1 is located inside the opening.

[0040] As Figure 1 and Figure 2 shown, a rotating hole adapted to the rotating shaft column 11 is provided in the middle of the lower rotating turntable 501, which provides an installation position for the rotating shaft column 11, enabling the rotating shaft column 11 to be accurately installed on the lower rotating turntable 501 and ensuring the stability of the structure of the entire detection component. The outer surface of the rotating shaft column 11 and the rotating hole are connected by a bearing. This connection method greatly reduces the friction force when the rotating shaft column 11 rotates, enabling the rotating shaft column 11 to rotate more smoothly, improving the sensitivity and accuracy of rotation detection. The bottom of the rotating shaft column 11 is connected to a cable, so that the winding and unwinding movement of the cable can directly drive the rotating shaft column 11 to rotate, thereby converting the movement state of the cable into the rotational movement of the rotating shaft column 11, facilitating subsequent angle detection.

[0041] An opening is provided at the position of the angle sensor 1 in the middle of the upper rotating turntable 10, which provides a space for the installation and signal transmission of the angle sensor 1, enabling the angle sensor 1 to be successfully installed on the upper rotating turntable 10 and allowing its detection signal to be transmitted unobstructed.

[0042] Please continue to refer to Figure 1 and Figure 2 , a lower rotating bracket 5 is fixedly provided on the cable winding and unwinding device 4. The outside of the lower rotating turntable 501 is connected to the lower rotating bracket 5. A second mounting bracket 3 is fixedly provided on the lower rotating bracket 5. The second mounting bracket 3 has a structure in the shape of a Chinese character 'ri'. The detection component is arranged inside one of the 'kou' shapes. Two first mounting brackets 2 are fixedly provided on one of the 'kou' shapes of the second mounting bracket 3. The bottom of the first mounting bracket 2 is fixedly connected to the upper rotating turntable 10.

[0043] As Figure 1 and Figure 2 shown, the lower rotating bracket 5 is fixedly provided on the cable winding and unwinding device 4, which provides a stable installation foundation for the lower rotating turntable 501, enabling the lower rotating turntable 501 to be firmly installed on the cable winding and unwinding device 4 and ensuring the relative position stability between the entire detection component and the cable winding and unwinding device 4.

[0044] A second mounting bracket 3 is fixedly installed on the lower rotating bracket 5, further providing an installation platform for the detection component, enabling the detection component to be installed and arranged more orderly. The second mounting bracket 3 adopts a U-shaped structure, which has good stability and space utilization. On the one hand, it can provide sufficient installation space for the detection component; on the other hand, its structural characteristics help to disperse stress and improve the load-bearing capacity of the entire mounting bracket. The detection component is placed in one of the U-shaped sections, so that the various parts of the detection component can be installed relatively centrally, which facilitates signal transmission and line connection, and also facilitates the management and maintenance of the entire detection component.

[0045] Two first mounting brackets 2 are fixedly installed on one of the U-shaped parts of the second mounting bracket 3, providing additional support and fixing points for the upper rotating turntable 10, further enhancing the stability of the upper rotating turntable 10. The bottom of the first mounting bracket 2 is fixedly connected to the upper rotating turntable 10, so that the upper rotating turntable 10 can be firmly installed on the second mounting bracket 3, ensuring that the upper rotating turntable 10 remains stable during the rotation of the rotating shaft column 11 and will not shake or shift.

[0046] Please continue reading. Figure 1 and Figure 2 A displacement sensor 9 is mounted on the outside of the rotating shaft column 11, and the displacement sensor 9 is set at an angle to the angle sensor 1.

[0047] like Figure 1 and Figure 2 As shown, a displacement sensor 9 is installed on the outside of the rotating shaft column 11, which can directly monitor the displacement of the rotating shaft column 11 in real time. During the rotation process, the rotating shaft column 11 may experience axial or radial displacement due to various factors (such as uneven cable winding and unwinding, external impact, etc.). The displacement sensor 9 can capture these displacement changes. By monitoring the displacement, abnormal displacement of the rotating shaft column 11 can be detected in time, avoiding problems in the connection between the rotating shaft column 11 and the upper and lower rotating turntables 501 due to excessive displacement, such as accelerated bearing wear, eccentricity of the rotating shaft column 11, etc., thereby extending the service life of the device and improving the reliability of the device operation.

[0048] The displacement sensor 9 and the angle sensor 1 are set at an angle so that they can monitor the motion state of the rotating shaft column 11 from different angles. The angle sensor 1 mainly monitors the rotation angle of the rotating shaft column 11, while the displacement sensor 9 monitors the displacement of the rotating shaft column 11. The two work together to provide a more comprehensive understanding of the motion of the rotating shaft column 11.

[0049] Please continue reading. Figure 1 and Figure 2Multiple mounting posts 7 are fixed on the lower rotating turntable 501. A tension spring 8 is provided on the top of one of the mounting posts 7. The other end of the tension spring 8 is located outside the rotating shaft post 11. Hinges are provided on the top of the mounting post 7 and the outside of the rotating shaft post 11. The two ends of the tension spring 8 are connected to the two hinges respectively. A damping device 6 is provided on the top of one of the mounting posts 7. The other end of the damping device 6 is connected to the outside of the rotating shaft post 11. The two ends of the damping device 6 are rotatably connected to the mounting post 7 and the rotating shaft post 11.

[0050] like Figure 1 and Figure 2 As shown, the mounting column 7 provides a fixed foundation for the subsequent installation of other components (such as tension spring 8, damping device 6, etc.) on the rotating shaft column 11. By setting multiple mounting columns 7 on the lower rotating turntable 501, the installation position can be flexibly selected according to actual needs to meet the installation requirements of different components.

[0051] The tension spring 8 applies a tension force to the rotating shaft column 11, maintaining a certain tension during rotation. When the rotating shaft column 11 shifts or changes its rotation angle due to cable winding or unwinding, the tension spring 8 undergoes elastic deformation, thus buffering and limiting the movement of the rotating shaft column 11. After the rotating shaft column 11 rotates to different angles, the tension spring 8 is stretched. When the cable is pulled out, the tension spring 8 retracts due to its elasticity, pulling the rotating shaft column 11 to rotate and return it to its initial state. Hinges are installed on the top of the mounting column 7 and the outside of the rotating shaft column 11, connecting the two ends of the tension spring 8 to the two hinges respectively. This allows the tension spring 8 to rotate freely within a certain range. This connection method can adapt to the rotational movement of the rotating shaft column 11, avoiding restricted movement or additional stress caused by the fixed connection of the tension spring 8.

[0052] The damping device 6 can dissipate the energy generated by the rotating shaft column 11 during rotation, suppressing the vibration and sway of the rotating shaft column 11. When the rotating shaft column 11 is subjected to external force or vibrates due to its own movement, the damping device 6 will generate damping force, causing the movement of the rotating shaft column 11 to gradually decrease, thereby achieving the purpose of stabilizing the movement of the rotating shaft column 11. The two ends of the damping device 6 are rotatably connected to the mounting column 7 and the rotating shaft column 11, so that the damping device 6 can flexibly adjust its angle as the rotating shaft column 11 rotates. This connection method can ensure that the damping device 6 is always adapted to the movement direction of the rotating shaft column 11, giving full play to the damping effect. The damping device 6 can be set as a telescopic cylinder (or hydraulic cylinder) structure, and the cylinder (or hydraulic cylinder) can generate a certain resistance to ensure the stability of the rotating shaft column 11 and the cable winding device 4.

[0053] The above-described 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 the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cable winding and unwinding device for a 400Hz power supply unit, characterized in that, include: A cable winding device (4) is provided with a cable inside the cable winding device (4); The detection component includes a lower rotating turntable (501) disposed on the cable take-up device (4) and an upper rotating turntable (10) disposed above the lower rotating turntable (501). A rotating shaft column (11) is provided between the lower rotating turntable (501) and the upper rotating turntable (10). The bottom of the rotating shaft column (11) is rotatably connected to the lower rotating turntable (501). The top of the rotating shaft column (11) is in contact with the upper rotating turntable (10). An angle sensor (1) is installed on the top of the rotating shaft column (11). The top of the angle sensor (1) passes through the upper rotating turntable (10) and extends above the upper rotating turntable (10). Angle sensor (1) is electrically connected to an alarm system via a PLC.

2. The cable winding and unwinding device for a 400Hz power supply unit according to claim 1, characterized in that, The lower rotating disk (501) has a rotating hole in the middle that is adapted to the rotating shaft column (11). The outer surface of the rotating shaft column (11) is connected to the rotating hole by a bearing. The bottom of the rotating shaft column (11) is connected to the cable.

3. The cable winding and unwinding device for a 400Hz power supply unit according to claim 1, characterized in that, An opening is provided in the middle of the upper rotating disk (10) at the position of the angle sensor (1), and the angle sensor (1) is located inside the opening.

4. The cable winding and unwinding device for a 400Hz power supply unit according to claim 1, characterized in that, The cable winding and unwinding device (4) is fixedly provided with a lower rotating bracket (5), and the exterior of the lower rotating turntable (501) is connected to the lower rotating bracket (5).

5. A cable winding and unwinding device for a 400Hz power supply unit according to claim 4, characterized in that, The lower rotating bracket (5) is fixedly provided with a second mounting bracket (3), which has a sun-shaped structure, and the detection component is located in one of the squares.

6. A cable winding and unwinding device for a 400Hz power supply unit according to claim 5, characterized in that, Two first mounting brackets (2) are fixedly mounted on one of the square-shaped brackets of the second mounting bracket (3), and the bottom of the first mounting bracket (2) is fixedly connected to the upper rotating turntable (10).

7. A cable winding and unwinding device for a 400Hz power supply unit according to claim 1, characterized in that, A displacement sensor (9) is installed on the outside of the rotating shaft (11), and the displacement sensor (9) is set at an angle to the angle sensor (1).

8. A cable winding and unwinding device for a 400Hz power supply unit according to claim 1, characterized in that, Multiple mounting posts (7) are fixed on the lower rotating turntable (501).

9. A cable winding and unwinding device for a 400Hz power supply unit according to claim 8, characterized in that, One of the mounting posts (7) is provided with a tension spring (8) at its top. The other end of the tension spring (8) is located outside the pivot post (11). Both the top of the mounting post (7) and the outside of the pivot post (11) are provided with hinges. The two ends of the tension spring (8) are respectively connected to the two hinges.

10. A cable winding and unwinding device for a 400Hz power supply unit according to claim 8, characterized in that, One of the mounting posts (7) is provided with a damping device (6) at the top. The other end of the damping device (6) is connected to the outside of the rotating shaft post (11). Both ends of the damping device (6) are rotatably connected to the mounting post (7) and the rotating shaft post (11).

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