Adjustable cable deflection angle tracking device and method

Abstract

The present invention provides an adjustable cable skew angle tracking device, comprising a positioning plate, a first stud, a sensing block, an adjusting screw, a second stud, a transmission rod, a sensor support, and a position sensor. A first stud is provided on each side of the positioning plate, and a second stud is provided on the sensing blocks on both sides of the positioning plate. There are two adjusting screws, and the two ends are connected to the first stud and the second stud respectively. The positioning plate and the two sensing blocks are both mounted on the transmission rod, wherein the sensing block can rotate around the transmission rod, and the sensing block has a fan-shaped shape. The two position sensors are respectively mounted in the normal direction of the fan-shaped arc surface of the corresponding sensing block, and the sensing block approaches the sensor in a circular arc cutting manner. The present invention also provides a control method for the cable skew angle tracking device. The cable skew angle tracking device of the present invention has the advantages of stable operation and high reliability, good adjustability, and a large tracking range, which fully meets the cable arrangement requirements of cables with different diameters.

Description

Technical Field

[0001] The present invention relates to the technical field of winch cable arrangement, and more particularly to an adjustable tracking device for tracking and monitoring whether a cable deflection angle exceeds a limit when a winch cable is arranged. Background Art

[0002] Winches are commonly used in marine operations for retracting and deploying various cables. To ensure that the cables are neatly arranged on the winch, various cable-arranging mechanisms have been developed. However, due to various factors affecting the cable arrangement process, such as tension fluctuations, the cable's physical properties, cable diameter variations, and system errors, the cables may deflect. Furthermore, when storing cables of varying diameters on the same winch, the spacing between cables of varying diameters can lead to slippage or rolling of the outer cables, causing them to deflect.

[0003] In order to solve the above problems and improve the cable arrangement effect, people have designed a cable arrangement tracking mechanism to monitor the angle or displacement of the cable from the theoretical position. For example, a common cable arrangement deflection angle tracking mechanism structure is as follows: Figure 1 As shown, two sensors 2 are respectively provided at the ends of the two sensing members 1. When the cable deflects, the sensing member 1 will be driven to rotate around the rotating shaft 3. The end of one of the sensing members 1 will be close to the corresponding sensor 2, causing the sensor 2 to be triggered and send a signal, thus realizing the cable deflection tracking and monitoring. The disadvantage of this mechanism is that the sensing rod 1 and the sensor 2 are opposite to each other and are prone to collision due to the close distance, which may cause the sensing member 1 to deform and the sensor 2 to be damaged and fail. Another common cable deflection angle tracking mechanism structure is as follows: Figure 2 As shown, two sensors 5 are installed vertically on either side of the induction disc 4. Driven by the cable, the induction disc 4 rotates about a rotation axis 6. When the induction disc 4 moves directly below the sensor 5, the sensor 5 is triggered to emit a signal, thus achieving cable deflection tracking and monitoring. Although the sensing element of this mechanism approaches the sensor from the side, which can avoid sensor collision, the proximity switch position is difficult to accurately set, resulting in a low accuracy range for monitoring the cable deflection angle. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technical solutions and provide an adjustable cable skew angle tracking device, which can not only solve the collision problem between the induction part and the sensor when the winch is arranging the cable, but also accurately adjust the tracking range of the cable skew angle. The adjustment range is large and the reliability is good, which can better meet the skew angle tracking requirements for cables of different diameters when arranging the cable.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides an adjustable cable deflection angle tracking device, including a positioning plate, a first stud, a sensing block, an adjusting screw, a second stud, a transmission rod, a sensing support, and a position sensor. The positioning plate is provided with a first stud, the positioning plate is provided with a sensing block, the sensing block is provided with a second stud, the two ends of the adjusting screw are respectively connected to the first stud and the second stud, the positioning plate is fixedly connected to the transmission rod, the sensing block is installed on the transmission rod, and the position sensor is installed on the sensing support. Driven by the transmission rod, the sensing block approaches the sensing area of ​​the position sensor from the side.

[0007] As a preferred solution of the present invention, the sensing block is fan-shaped, and the position sensor is installed in the normal direction of the fan-shaped arc surface of the sensing block. When the cable deflection drives the transmission rod to rotate, the sensing block approaches the position sensor in a circular arc cutting manner, thereby ensuring the effective sensing of the position sensor and avoiding collision damage between the sensing block and the position sensor.

[0008] Preferably, there are two first studs and they are respectively arranged on both sides of the positioning plate, there are two sensing blocks and they are respectively arranged on both sides of the positioning plate, each sensing block is provided with a second stud, and the two groups of first studs and second studs located on both sides of the positioning plate are connected by adjusting screws.

[0009] Preferably, there are two position sensors, both of which are mounted on the sensor support and correspond to the two sensing blocks respectively.

[0010] Preferably, the sensing block is provided with a plurality of mounting holes. By arranging the second stud on different mounting holes on the sensing block, the tracking range of the cable deflection angle can be coarsely adjusted; further, the distance between the first stud and the second stud can be precisely fine-tuned by screwing the threaded portion of the adjusting screw, thereby accurately controlling the tracking range of the cable deflection angle.

[0011] Preferably, one end of the adjusting screw passes through the first stud and is limited and prevented from loosening by a locking nut, and the other end of the adjusting screw is connected to the second stud by a thread.

[0012] Preferably, the first stud and the second stud can both rotate flexibly.

[0013] Preferably, the sensing block can rotate around the transmission rod; further, the sensing block is provided with a drag reducing groove to ensure that the sensing block can rotate flexibly on the transmission rod and that the sensing block and the transmission rod are closely matched to ensure monitoring accuracy.

[0014] The present invention also provides a control method for the adjustable cable deflection angle tracking device, comprising the following steps:

[0015] (1) According to the cable deflection angle control requirements, pre-set the installation position of the sensor block on the positioning plate;

[0016] (2) The cable arrangement device performs cable retraction and release operations. When the cable is deflected, the transmission rod is driven to rotate, which in turn drives the sensing block to enter the sensing area of ​​the position sensor tangentially, causing the position sensor to be triggered and generate a sensor signal reflecting the size of the cable deflection angle;

[0017] (3) The sensing signal is transmitted to the control unit of the cable arrangement device, which processes the signal and outputs control information to the drive unit to achieve operational adjustment of the cable arrangement device.

[0018] The beneficial effects of the present invention are:

[0019] 1. The induction block used for tracking and monitoring the cable deflection angle is close to the position sensor in the form of an arc cut-in, which avoids damage due to collision between the induction block and the sensor, and has a protective effect on both. In addition, the pre-set cable deflection angle can be kept unchanged, and the device operates stably and has high reliability.

[0020] 2. The cable skewing tracking angle of the device is adjustable. By setting a high-precision, easy-to-install and easy-to-use adjustment mechanism, it can be adjusted over a large range by replacing the installation position of the second stud, or it can be precisely adjusted by screwing the threaded part of the adjusting screw. Therefore, the cable skewing angle tracking range is large, which fully meets the cable skewing needs of cables with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a cable deflection angle tracking mechanism in the prior art in which a sensing element is directly attached to the end of a sensor;

[0022] Figure 2 This is a schematic diagram of another cable deflection angle tracking mechanism in which the induction disk and the sensor are vertically installed in the prior art;

[0023] Figure 3 This is a schematic structural diagram of Example 1 of an adjustable cable deflection angle tracking device according to the present invention;

[0024] Figure 4 for Figure 3 Schematic diagram of the structure of an embodiment of the induction block 9.

[0025] Explanation of the numbers in the accompanying drawings: 1. Sensing part, 2. Sensor, 3. Rotating shaft, 4. Sensing disk, 5. Sensor, 6. Rotating shaft, 7. Positioning disk, 8. First stud, 9. Sensing block, 901. Mounting hole, 902. Drag reduction groove, 903. Fan-shaped arc surface, 10. Adjusting screw, 11. Locking nut, 12. Second stud, 13. Transmission rod, 14. Sensing support, 15. Position sensor. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Example 1: Figure 3 、 Figure 4 As shown, an adjustable cable deflection angle tracking device mainly includes a positioning plate 7, a first stud 8, a sensing block 9, an adjusting screw 10, a lock nut 11, a second stud 12, a transmission rod 13, a sensor support 14, and a position sensor 15. A first stud 8 is provided on each side of the positioning plate 7, and both first studs 8 are rotatable. A sensing block 9 is provided on each side of the positioning plate 7, and each sensing block 9 is provided with a second stud 12, and the second stud 12 is rotatable. There are two adjusting screws 10, one end of which passes through the first stud 8 and is secured by a lock nut 11, and the other end of the adjusting screw 10 is threadedly connected to the second stud 12. The positioning plate 7 and the two sensing blocks 9 are both mounted on the transmission rod 13, wherein the positioning plate 7 is fixedly connected to the transmission rod 13, and the two sensing blocks 9 are rotatable around the transmission rod 13. There are two position sensors 15, both mounted on the sensor support 14 and corresponding to the two sensing blocks 9 respectively. The shape of the sensing block 9 is a sector or other structure with an arc-shaped sensing surface. The two position sensors 15 are respectively installed in the normal direction of the sector-shaped arc surface 903 of the two sensing blocks 9. When the cable deflection drives the transmission rod 13 to rotate, the sector-shaped arc surface 903 of one of the sensing blocks 9 approaches the corresponding position sensor 15 in an arc cutting manner. This can not only ensure the effective sensing of the position sensor 15, but also avoid collision damage between the sensing block 9 and the position sensor 15.

[0028] Preferably, a plurality of mounting holes 901 are provided on the sensing block 9. By setting the second stud 12 on different mounting holes 901 on the sensing block 9, the tracking range of the cable deflection angle can be adjusted over a large range; further, the distance between the first stud 8 and the second stud 12 can be precisely fine-tuned by screwing the adjusting screw 10, thereby accurately controlling the monitoring range of the cable deflection angle.

[0029] Preferably, the sensing block 9 is provided with a drag reducing groove 902 to ensure that the sensing block 9 can rotate flexibly on the transmission rod 13 and that the sensing block 9 and the transmission rod 13 are closely matched to ensure monitoring accuracy.

[0030] Working Principle: When the cable is stable, select the appropriate mounting hole 901 on the sensing block 9 based on the cable diameter to install the second stud 12. Then, by precisely fine-tuning the threaded portion of the adjustment screw 10 and setting the distance between the two sets of first studs 8 and second studs 12, the cable arrangement tracking angle can be set to the desired angle. When the cable deflects, the cable drives the transmission rod 13 and the fixed positioning plate 7 to rotate synchronously, thereby driving the sensing block 9 to rotate around the transmission rod 13. At this time, the sector-shaped arc surfaces 903 of the two sensing blocks 9 will respectively approach or move away from the corresponding position sensor 15 in a circular manner. When the cable deflection reaches the preset cable arrangement tracking angle, the corresponding position sensor 15 will be triggered and emit a signal.

[0031] In Example 1, a triangular structure is formed between the first stud 8, the second stud 12 and the transmission rod 13. Since the length of the adjustment screw 10 between the two groups of first studs 8 and second studs 12 has been set, the distance from the second stud 12 of the sensing block 9 to the transmission rod 13 is fixed, and the distance from the first stud 8 to the transmission rod 13 is fixed. Although the first stud 8 on the positioning plate 7, the second stud 12 on the sensing block 9, and the sensing block 9 on the transmission rod 13 can all rotate flexibly, it does not affect the fact that after the transmission rod 13 drives the positioning plate 7 to rotate, the positioning plate 7 will also drive the sensing block 9 to move synchronously.

[0032] In Example 1, the first stud 8, the second stud 12, and the induction block 9 can all be flexibly rotated, which has the advantage of being more convenient to install and use while ensuring the adjustment accuracy.

[0033] Control steps: First, pre-set the installation position of the sensor block 9 on the positioning disk 7 based on the cable skew angle control requirements. When the cable arrangement device is retracting and releasing the cable, cable deflection drives the transmission rod to rotate, which in turn drives the positioning disk 7 and the sensor block 9 to move synchronously. When the cable deflection exceeds the set range, the sensor block 9 enters the sensing area of ​​the position sensor 15 from the tangential direction, triggering the position sensor 15 and generating a sensor signal reflecting the cable skew angle. The sensor signal is transmitted to the cable arrangement device's control unit, which processes the signal and outputs control information to the drive unit to adjust the cable arrangement's operation.

[0034] Example 2: Example 2 has the same main structure as Example 1, except that there is only one sensing block, first stud, adjusting screw, and second stud, and they are all arranged on the same side of the positioning plate. The position can be set to one or more as needed, and it can also track and monitor the cable deflection angle.

[0035] Example 3: Example 3 has the same main structure as Example 1, except that at least one of the first stud, the second stud, and the sensing block is fixedly installed, that is, the first stud can be fixedly installed on the positioning plate, or the second stud can be fixedly installed on the sensing block, or the sensing block can be fixedly installed on the transmission rod, or a combination of the above three methods can be used, which can also achieve the effect of tracking and monitoring the cable deflection angle.

[0036] It should be noted that the above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Equivalent modifications made based on the above embodiments fall within the scope of protection of the present invention.

Claims

1. An adjustable cable deflection angle tracking device, characterized by: The sensor comprises a positioning plate, a first stud, a sensing block, an adjusting screw, a second stud, a transmission rod, a sensing support, and a position sensor. The positioning plate is provided with a first stud, the positioning plate is provided with a sensing block, the sensing block is provided with a second stud, both ends of the adjusting screw are connected to the first stud and the second stud respectively, the positioning plate is fixedly connected to the transmission rod, the sensing block is mounted on the transmission rod, and the position sensor is mounted on the sensing support. Driven by the transmission rod, the sensing block approaches the sensing area of ​​the position sensor from the side. There are two first studs, each of which is provided on both sides of the positioning plate; there are two sensing blocks, each of which is provided on both sides of the positioning plate; a second stud is provided on each sensing block; the two groups of first studs and second studs on both sides of the positioning plate are connected by an adjusting screw; a plurality of mounting holes for adjusting the second stud are provided on the sensing block; one end of the adjusting screw passes through the first stud and is limited and prevented from loosening by a lock nut; the other end of the adjusting screw is connected to the second stud by a thread; the first and second studs can both rotate flexibly; the sensing block can rotate around the transmission rod; and the sensing block is provided with a drag reduction groove to ensure that the sensing block can rotate flexibly on the transmission rod; There are two position sensors, both of which are installed on the sensor support and correspond to two sensing blocks respectively. The sensing block has a fan-shaped shape. The position sensor is installed in the normal direction of the fan-shaped arc surface of the sensing block. The sensing block approaches the position sensor in an arc cutting manner.

2. A control method for the adjustable cable deflection angle tracking device according to claim 1, characterized in that: The steps include: (1) According to the cable deflection angle control requirements, pre-set the installation position of the sensor block on the positioning plate; (2) The cable arrangement device performs cable retraction and release operations. When the cable is deflected, the transmission rod is driven to rotate, which in turn drives the sensing block to enter the sensing area of ​​the position sensor tangentially, causing the position sensor to be triggered and generate a sensor signal reflecting the size of the cable deflection angle; (3) The sensing signal is transmitted to the control unit of the cable arrangement device, which processes the signal and outputs control information to the drive unit to achieve operational adjustment of the cable arrangement device.

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