Tensioner and its take-up and unwinding detection device

Abstract

This application discloses a tensioning machine and its take-up and unwinding detection device. The tensioning machine includes a drum and a rope wound on the drum. The take-up and unwinding detection device includes a rope detection wheel, a rope detection component, a first rotating shaft, a rope detection arm, and a swing angle detection component. The rope detection component is mounted on the rope detection wheel and is used to detect the rotation angle and speed of the rope detection wheel. One end of the rope detection arm is connected to the rope detection wheel, and the other end is fitted onto the first rotating shaft. The first rotating shaft rotates around its own axis to drive the rope detection arm to swing, so that the rope detection wheel is in close contact with or separates from the rope on the drum. The swing angle detection component is used to detect the swing angle of the rope detection arm. This application directly measures the take-up and unwinding speed and mileage through the rope detection wheel, eliminating measurement errors and thus improving detection accuracy.

Description

Technical Field

[0001] This application belongs to the field of engineering machinery technology, specifically relating to a tensioning machine and its take-up and release detection device. Background Technology

[0002] Overhead transmission line tension stringing operations are mainly completed by a traction machine pulling the rope and a tensioning machine tensioning the rope. The tensioning machine's stringing detection system is a critical subsystem, determining the accuracy of stringing mileage measurement and speed monitoring, and is crucial to the construction operation. Current technologies generally only measure stringing mileage and speed, calculating these based on the angle and speed of the tensioning machine drum and then converting the results to the drum diameter. Furthermore, existing detection systems typically use single sensors and single algorithms with no redundancy, resulting in low reliability and significant detection errors. Summary of the Invention

[0003] The purpose of this application is to provide a tensioning machine and its take-up and unwinding detection device to solve the technical problem of large detection error in the detection system of the tensioning machine.

[0004] To achieve the above objectives, this application provides a winding and unwinding detection device for a tensioning machine, the tensioning machine including a drum and a rope wound on the drum, the winding and unwinding detection device comprising:

[0005] Wire rope inspection wheel;

[0006] A rope detection component is installed on the rope detection wheel and is used to detect the rotation angle and rotation speed of the rope detection wheel;

[0007] First axis of rotation;

[0008] The cord detection arm has one end connected to the cord detection wheel and the other end fitted onto the first rotating shaft. The first rotating shaft rotates around its own axis to drive the cord detection arm to swing, so that the cord detection wheel is in close contact with or separates from the cord on the drum.

[0009] An angle detection component is used to detect the swing angle of the rope detection arm.

[0010] In some embodiments, the take-up and release detection device further includes a first elastic element, the two ends of which are respectively connected to the rope detection arm and the first rotating shaft.

[0011] In some embodiments, the rope detection element and the rope detection wheel are coaxially connected and located on both sides of the rope detection arm.

[0012] In some embodiments, the tensioning machine further includes a frame, and the take-up and release detection device further includes a main suspension rod and a linear telescopic rod. One end of the main suspension rod is hinged to a first mounting base, and the other end is connected to the rope detection arm. One end of the linear telescopic rod is hinged to a second mounting base, and the other end of the linear telescopic rod is hinged to the main suspension rod. Both the first mounting base and the second mounting base are mounted on the frame.

[0013] In some embodiments, the take-up and release detection device further includes a first fixed base mounted on the main suspension rod, the first rotating shaft and the swing angle detection element are both mounted on the first fixed base, and the swing angle detection element is coaxially connected to the first rotating shaft.

[0014] In some embodiments, the outer peripheral wall of the rope detection wheel is made of a wear-resistant material.

[0015] In some embodiments, the outer peripheral wall of the drum is provided with a rope groove for the rope to travel, and the shape of the outer peripheral wall of the rope detection wheel is adapted to the shape of the rope groove.

[0016] In some embodiments, the take-up and release detection device further includes:

[0017] Roller inspection wheel;

[0018] A drum detection component is installed on the drum detection wheel and is used to detect the rotation angle and rotation speed of the drum;

[0019] The second rotating shaft is mounted on the main suspension rod via the second fixed seat;

[0020] The roll detection arm has one end connected to the roll detection wheel and the other end fitted onto the second rotating shaft. The second rotating shaft rotates around its own axis to drive the roll detection arm to swing, so that the outer peripheral wall of the roll detection wheel and the outer peripheral wall of the roll are either in contact or separated.

[0021] In some embodiments, the take-up and undo detection device further includes a second elastic element, the two ends of which are respectively connected to the drum detection arm and the second fixed base.

[0022] Furthermore, a second aspect of this application provides a tensioning machine, including the take-up and unwinding detection device as described above.

[0023] Through the above technical solution, the rope detection component of the take-up and undo detection device is installed on the rope detection wheel. One end of the rope detection arm is connected to the rope detection wheel, and the other end is fitted onto a first rotating shaft. The first rotating shaft rotates around its own axis to drive the rope detection arm to swing. When it is necessary to detect the take-up and undo, the first rotating shaft is driven to rotate, causing the detection arm to swing towards the drum until the rope detection wheel on the rope detection arm is in close contact with the rope on the drum. As the take-up and undo proceed, the speed of the rope can be calculated by the rotation angle and rotation speed of the rope detection wheel detected by the rope sensor. Furthermore, since the rope detection arm swing angle sensor can be used to obtain the swing angle of the rope detection arm, when the diameter of the rope on the drum changes, the feedback value of the rope detection arm swing angle sensor will also change, thereby realizing the detection of the rope diameter. During detection, the detection device of this application, since the detected rotation angle, rotation speed, and swing angle data are the target data, does not have factors such as transmission conversion error, drum and rope slippage, or the influence of rope diameter, thus improving the detection accuracy and reliability.

[0024] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0026] Figure 1 This is a partial structural schematic diagram of the tensioning machine of this application;

[0027] Figure 2 This is a schematic diagram of the wire take-up and feed detection device of this application during operation;

[0028] Figure 3 This is a side view of the wire take-up and feed detection device of this application during operation;

[0029] Figure 4 This is a schematic diagram of the wire take-up and feed detection device of this application;

[0030] Figure 5 This is a partial structural schematic diagram of the wire take-up and feed detection device of this application;

[0031] Figure 6 This is a schematic diagram of the detection of the wire take-up and release detection device of this application in the first working condition;

[0032] Figure 7This is a schematic diagram of the detection of the wire take-up and release detection device in the second working condition.

[0033] Explanation of reference numerals in the attached figures

[0034] 10 Wire Rope Inspection Wheels 30 Frames

[0035] 11 Wire rope testing parts 31 Wire rope

[0036] 12 First rotating shaft 32 Drum

[0037] 13 Wire rope detection arm; 33 Wire rope groove

[0038] 14. Swing angle detection component; 34. Electrical control module

[0039] 15 First elastic element 40 Main suspension rod

[0040] 20. Drum detection wheel; 41. Linear telescopic rod

[0041] 21 Roll inspection component 42 First mounting base

[0042] 22 Second Rotary Shaft 43 Second Mounting Base

[0043] 23 Roller detection arm 44 First fixed seat

[0044] 24 Second elastic element 45 Second fixed seat Detailed Implementation

[0045] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0046] The tensioning machine and its take-up and unwinding detection device according to this application are described below with reference to the accompanying drawings.

[0047] like Figures 1 to 3As shown, this application provides a winding and unwinding detection device for a tensioning machine. The tensioning machine includes a drum 32 and a rope 31 wound on the drum 32. The winding and unwinding detection device includes a rope detection wheel 10, a rope detection component 11, a first rotating shaft 12, a rope detection arm 13, and a swing angle detection component 14. The rope detection component 11 is mounted on the rope detection wheel 10 and is used to detect the rotation angle and rotation speed of the rope detection wheel 10. One end of the rope detection arm 13 is connected to the rope detection wheel 10, and the other end is fitted onto the first rotating shaft 12. On a rotating shaft 12, the first rotating shaft 12 rotates around its own axis to drive the rope detection arm 13 to swing, so that the rope detection wheel 10 is in close contact with or separate from the rope 31 on the drum 32; the swing angle detection component 14 is connected to the first rotating shaft 12 and is used to detect the swing angle of the rope detection arm 13. When detecting the swing angle, the detection shaft of the swing angle detection component 14 is inserted into the first rotating shaft 12 and connected, so that the swing angle detection component 14 follows the first rotating shaft 12 to rotate, thereby achieving the purpose of detecting the swing angle.

[0048] Among them, the rope detection component 11 is a rope detection sensor used to obtain the rotation angle and rotation speed of the rope detection wheel 10; the swing angle detection component 14 is a swing angle sensor used to obtain the swing angle of the rope detection arm 13.

[0049] In this embodiment, before the tensioning machine operates, the rope 31 is wound into the rope groove 33 of the drum 32. When it is necessary to detect the winding and unwinding, the first rotating shaft 12 is driven to rotate, so that the detection arm swings toward the drum 32 until the rope detection wheel 10 on the detection arm is in close contact with the rope 31 on the drum 32. As the winding and unwinding of the rope 31 proceeds, the speed of the rope 31 can be calculated by the rotation angle and rotation speed detected by the rope detection sensor. Furthermore, since the swing angle sensor of the rope detection arm 13 can be used to obtain the swing angle of the rope detection arm 13, when the diameter of the rope 31 on the drum 32 changes, the feedback value of the swing angle sensor of the rope detection arm 13 will also change, thereby realizing the diameter detection of the rope 31. The rope 31 diameter detection function can also be used to realize the wear detection of the rope groove 33 and the over-wheel warning detection. Therefore, when the detection device of this application detects the winding and unwinding of the rope 31, since the detected rotation angle, rotation speed and swing angle data are the target data, there are no transmission conversion errors, slippage between the drum 32 and the rope 31, or the influence of the diameter of the rope 31. Therefore, the detection accuracy and reliability can be improved.

[0050] In some embodiments, the wire take-up and release detection device further includes a first elastic element 15, the two ends of which are respectively connected to the wire detection arm 13 and the first rotating shaft 12.

[0051] The first elastic element 15 can be a torsion spring for the rope detection arm. The two ends of the torsion spring are respectively connected to the rope detection arm 13 and the first fixed seat 44. The torsion spring applies a counterclockwise rotational force to the rope detection arm 13, so that the rope detection arm 13 rotates, thereby making the rope detection wheel 10 tightly adhere to the rope 31 or the rope groove 33.

[0052] In some embodiments, the rope detection element 11 and the rope detection wheel 10 are coaxially connected and located on both sides of the rope detection arm 13. Since both the rope detection element 11 and the rope detection wheel 10 are mounted on the rope detection arm 13, when the rope detection arm 13 swings, it can drive the swing angle detection element 14 to swing, thereby obtaining the swing angle of the swing angle detection element 14 to help detect the diameter of the rope 31.

[0053] Furthermore, the rope detection wheel 10 and the rope detection component 11 are mounted on the swing end of the rope detection arm 13. Under the action of the first elastic element 15, the rope detection wheel 10 will be in close contact with the rope 31. When the rope 31 moves (retracts or releases the rope), the rope detection wheel 10 will rotate and drive the rope detection component 11 to rotate, so as to assist in the speed detection and mileage detection of the rope 31.

[0054] like Figure 4 and Figure 5 As shown, the tensioning machine also includes a frame 30, and the take-up and release detection device also includes a main suspension rod 40 and a linear telescopic rod 41. One end of the main suspension rod 40 is hinged to a first mounting base 42, and the other end is connected to the rope detection arm 13. One end of the linear telescopic rod 41 is hinged to a second mounting base 43, and the other end of the linear telescopic rod 41 is hinged to the main suspension rod 40. The first mounting base 42 and the second mounting base 43 are both mounted on the frame 30.

[0055] In this embodiment, the entire take-up and undo detection device is mounted on the frame 30. During the detection process, the main suspension rod 40 is axially parallel to the drum 32 and provides mounting points for the rope detection wheel 10 and the drum detection wheel 20. By controlling the extension and retraction of the linear telescopic rod 41, the main suspension rod 40 swings relative to the first mounting base 42, thereby switching the entire detection device between the take-up state and the detection state. In the take-up state, the linear telescopic rod 41 extends and drives the main suspension rod 40 to swing to a vertical position, at which point the rope detection wheel 10 and the drum detection wheel 20 are both away from the drum 32. In the detection state, the linear telescopic rod 41 retracts and drives the main suspension rod 40 to swing to a position parallel to the axis of the drum 32, preparing for the detection of the rope 31. The linear telescopic rod 41 can be a hydraulic rod, a pneumatic cylinder, an electric cylinder, or other structural forms. An electrical control module 34 is also provided on the frame 30, which is used to control the entire take-up and undo process of the tensioning machine.

[0056] In some embodiments, the line take-up and release detection device further includes a first fixed base 44 mounted on the main suspension rod 40. The first rotating shaft 12 and the swing angle detection element 14 are both mounted on the first fixed base 44, and the swing angle detection element 14 is coaxially connected to the first rotating shaft 12. During installation, the detection shaft of the swing angle detection element 14 is connected to the first rotating shaft 12, and the swing angle of the line detection arm 13 is detected by detecting the rotation angle of the first rotating shaft 12.

[0057] Because the rope detection wheel 10 needs to contact the rope 31 or the rope groove 33 of the drum 32 during the detection process, and the detection time is relatively long, in order to improve the detection life of the rope detection wheel 10 and prevent damage to the rope 31 or the rope groove 33, the outer peripheral wall of the rope detection wheel 10 is made of a wear-resistant material. Preferably, the wear-resistant material can be a wear-resistant flexible material such as polyurethane or silicone.

[0058] In some embodiments, the outer peripheral wall of the drum 32 is provided with a rope groove 33 for the rope 31 to run through, and the shape of the outer peripheral wall of the rope detection wheel 10 is adapted to the shape of the rope groove 33.

[0059] like Figure 6 and Figure 7 As shown, the outer circumference of the rope detection wheel 10 is an arc-shaped structure. When there is no rope 31 on the drum 32, the rope detection wheel 10 can directly fit against the bottom of the rope groove 33. Therefore, the outer circumference shape of the rope detection wheel 10 needs to match the shape of the rope groove 33. When a rope 31 is wound on the drum 32, the rope 31 is located between the rope detection wheel 10 and the rope groove 33. The speed and mileage of the rope 31 are obtained by the rotation angle and rotation speed of the rope detection wheel 10.

[0060] In some embodiments, the take-up and unwinding detection device further includes a drum detection wheel 20, a drum detection component 21, a second rotating shaft 22, and a drum detection arm 23; the drum detection component 21 is mounted on the drum detection wheel 20 and is used to detect the rotation angle and rotation speed of the drum 32; the second rotating shaft 22 is mounted on the main suspension rod 40 through a second fixed seat 45; one end of the drum detection arm 23 is connected to the drum detection wheel 20, and the other end is fitted onto the second rotating shaft 22. The second rotating shaft 22 rotates around its own axis to drive the drum detection arm 23 to swing, so that the outer peripheral wall of the drum detection wheel 20 and the outer peripheral wall of the drum 32 are in contact or separated.

[0061] During the inspection process, since the outer wheel of the drum inspection wheel 20 needs to be in contact with the outer plane of the drum 32, in order to increase the contact area and improve the friction, the outer periphery of the drum inspection wheel 20 is designed as a plane rather than an arc shape.

[0062] In this embodiment, the rotation angle and rotation speed of the drum detection wheel 20 are obtained through the drum detection component 21. The rotation speed of the drum 32 can be calculated based on parameters such as the rotation speed and diameter of the drum detection wheel 20, the end diameter of the drum 32, the bottom diameter of the rope groove 33, the wear amount of the rope groove 33, and the diameter of the rope 31. The speed of the rope 31 can be calculated based on the rotation speed of the drum 32. The speed value of the rope 31 obtained through the data of the drum detection component 21 is compared with the speed value of the rope 31 obtained through the data of the rope detection component 11 to verify the speed value of the rope 31. If the verification fails, an alarm is triggered to indicate a speed detection fault, thereby improving the reliability of the rope 31 speed detection. The rotation angle of the drum 32 can be calculated using parameters such as the rotation angle of the drum detection wheel 20. The mileage of the rope 31 can be obtained from the rotation angle of the drum 32. By comparing the mileage value of the rope 31 calculated from the data of the drum detection wheel 20 with the mileage value of the rope 31 calculated from the data of the rope detection wheel 10, the mileage value of the rope 31 can be verified, thereby improving the reliability of the mileage detection.

[0063] In addition, the rope detection component 11 and the drum detection component 21 can be encoders, or they can be photoelectric sensors, capacitive sensors, inductive sensors, Hall sensors, etc., to achieve the detection requirements by opening sensing holes and slots on the detection wheel and embedding sensing blocks.

[0064] In some embodiments, the take-up and undo detection device further includes a second elastic element 24, the two ends of which are respectively connected to the drum detection arm 23 and the second rotating shaft 22.

[0065] The first elastic element 15 can be a torsion spring for the drum detection arm. The two ends of the torsion spring are respectively connected to the drum detection arm 23 and the second fixed seat 45. The torsion spring applies a counterclockwise rotational force to the drum detection arm 23 so that the drum detection arm 23 rotates, thereby causing the drum detection wheel 20 to fit against the outer periphery of the drum 32.

[0066] Furthermore, a second aspect of this application provides a tensioning machine including the take-up and release detection device described above. Since this tensioning machine employs all embodiments of the aforementioned take-up and release detection device, it possesses all the beneficial effects brought about by the aforementioned take-up and release detection device, which will not be elaborated upon here.

[0067] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A winding and unwinding detection device for a tensioning machine, the tensioning machine comprising a drum (32) and a rope (31) wound on the drum (32), characterized in that, The take-up and release detection device includes: Wire rope inspection wheel (10); A rope detection component (11) is installed on the rope detection wheel (10) and is used to detect the rotation angle and rotation speed of the rope detection wheel (10); First rotation axis (12); The rope detection arm (13) is connected at one end to the rope detection wheel (10) and the other end is mounted on the first rotating shaft (12). The first rotating shaft (12) rotates around its own axis to drive the rope detection arm (13) to swing so that the rope detection wheel (10) and the rope (31) on the drum (32) are in close contact or separated. The swing angle detection element (14) is used to detect the swing angle of the rope detection arm (13).

2. The take-up and undo detection device according to claim 1, characterized in that, The wire take-up and release detection device further includes a first elastic element (15), the two ends of which are respectively connected to the wire detection arm (13) and the first rotating shaft (12).

3. The take-up and undo detection device according to claim 1, characterized in that, The rope detection component (11) and the rope detection wheel (10) are coaxially connected and located on both sides of the rope detection arm (13).

4. The take-up and undo detection device according to claim 1, characterized in that, The tensioning machine also includes a frame (30), and the take-up and release detection device also includes a main suspension rod (40) and a linear telescopic rod (41). One end of the main suspension rod (40) is hinged to a first mounting seat (42), and the other end is connected to the rope detection arm (13). One end of the linear telescopic rod (41) is hinged to a second mounting seat (43), and the other end of the linear telescopic rod (41) is hinged to the main suspension rod (40). The first mounting seat (42) and the second mounting seat (43) are both mounted on the frame (30).

5. The take-up and undo detection device according to claim 4, characterized in that, The wire take-up and release detection device also includes a first fixed seat (44) installed on the main suspension rod (40), the first rotating shaft (12) and the swing angle detection element (14) are both installed on the first fixed seat (44), and the swing angle detection element (14) is coaxially connected to the first rotating shaft (12).

6. The take-up and undo detection device according to claim 1, characterized in that, The outer peripheral wall of the rope detection wheel (10) is made of wear-resistant material.

7. The take-up and undo detection device according to claim 1, characterized in that, The outer peripheral wall of the drum (32) is provided with a rope groove (33) for the rope (31) to run, and the shape of the outer peripheral wall of the rope detection wheel (10) is adapted to the shape of the rope groove (33).

8. The take-up and undo detection device according to claim 4, characterized in that, The take-up and feed detection device also includes: Roller detection wheel (20); A drum detection component (21) is installed on the drum detection wheel (20) and is used to detect the rotation angle and rotation speed of the drum (32); The second rotating shaft (22) is mounted on the main suspension rod (40) via the second fixed seat (45); The roll detection arm (23) is connected at one end to the roll detection wheel (20) and at the other end to the second rotating shaft (22). The second rotating shaft (22) rotates around its own axis to drive the roll detection arm (23) to swing so that the outer peripheral wall of the roll detection wheel (20) and the outer peripheral wall of the roll (32) are in contact or separated.

9. The take-up and undo detection device according to claim 8, characterized in that, The take-up and undo detection device also includes a second elastic element (24), the two ends of which are connected to the drum detection arm (23) and the second fixed seat (45), respectively.

10. A tensioning machine, characterized in that, Includes the take-up and undo detection device according to any one of claims 1 to 9.

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