Accurate fault cable positioning device

Abstract

The utility model discloses a fault cable accurate positioning device, which relates to the field of cable detection, aims to solve the problem that cable open circuit fault points are inconvenient to accurately position in the prior art, and adopts the technical scheme that the fault cable accurate positioning device comprises a take-up frame and a pay-off frame, and the pay-off frame and the take-up frame are the same in structure; a lifting frame is further arranged between the take-up frame and the pay-off frame, the lifting frame is arranged on the side close to the take-up frame, and an induction coil is arranged on the lifting frame. A storage battery is connected to the take-up frame through a mounting plate, the storage battery provides alternating current for a cable to be detected, the take-up frame, the pay-off frame and the storage battery are matched, the alternating current is connected to the cable to be detected on the premise that winding of the cable is not affected, the alternating current stops at the open circuit position due to open circuit of the cable, the cable passes through an induction coil, and the cable to be detected is detected. By detecting whether the cable has alternating current or not, the open-circuit position of the cable can be judged, and the fault position of the open-circuit fault cable can be quickly and accurately found and maintained.

Description

Technical Field

[0001] This utility model relates to the field of cable testing technology, specifically a device for accurately locating faulty cables. Background Technology

[0002] Currently, cable faults are unavoidable during the cable manufacturing process. For short-circuit faulty cables, there are already mature and highly accurate locating methods available on the market.

[0003] However, for cables with open circuit faults, the current method is to use capacitance to roughly locate the fault, determining an approximate location, and then manually searching for the exact location of the break. The drawback of this method is that the positioning accuracy is too poor. The error varies for different cable models and specifications, and for some cables, the error can even reach hundreds of meters. This brings great difficulties to quickly finding the fault point and repairing it. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a device for accurately locating faulty cables, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model discloses a device for accurately locating faulty cables. The technical solution adopted includes a take-up frame and a pay-off frame. The take-up frame further includes a support unit, which is provided in two sets, and a winding roller is provided between the two sets of support units. The pay-off frame has the same structure as the take-up frame.

[0006] A lifting frame is also provided between the take-up frame and the pay-off frame. The lifting frame is located on the side close to the take-up frame and is equipped with an induction coil.

[0007] A battery is connected to the take-up frame via a mounting plate. The battery provides AC power to the cable under test. By using the take-up frame, the pay-off frame, and the battery in conjunction, AC power is applied to the cable under test without affecting the cable winding. Due to the cable break, the AC power stops at the break point. By using an induction coil to detect whether there is AC power in the cable, the location of the cable break can be determined. This allows for quick and accurate location of the faulty cable and repair.

[0008] As a preferred technical solution of this utility model, the support unit includes a base, a support frame and a rotating disk. The support frame is provided on the base, and a support rod is slidably connected inside the support frame. The bottom of the support rod is connected to the telescopic end of the hydraulic cylinder, and the top of the support rod is rotatably connected to the rotating disk through a bearing seat. The rotating disk is driven by a motor, and support columns supporting the winding roller are provided on the facing surfaces of the two sets of rotating disks.

[0009] As a preferred embodiment of this utility model, the support frame includes diagonal rods and sleeves. The diagonal rods are provided in three sets for supporting the sleeves, and the support rods are slidably connected inside the sleeves.

[0010] As a preferred technical solution of this utility model, the lifting frame includes a base plate, a telescopic rod and a top plate. The base plate is telescopically connected to the top plate. The induction coil is installed on the top plate. The induction coil is set on the lifting frame. The vertical position of the induction coil can be adjusted according to the requirements. With the help of the guide ring, the cable is guided to pass smoothly through the induction coil.

[0011] As a preferred embodiment of this utility model, the telescopic rod includes a sliding sleeve and a sliding plate. The sliding sleeve is mounted on the base plate, and the sliding plate is slidably connected inside the sliding sleeve. The sliding plate is driven by an electric push rod.

[0012] As a preferred embodiment of this utility model, a guide ring is also installed on the top plate. Two sets of guide rings are provided and symmetrically arranged on both sides of the induction coil for guiding the cable under test.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by using a take-up frame, a pay-off frame, and a battery in combination, allows AC power to be applied to the cable to be tested without affecting the cable winding. Due to the cable break, the AC power stops at the break point. By using an induction coil to detect whether there is AC power in the cable, the location of the cable break can be determined. This allows for quick and accurate location of the fault in the cable and repair.

[0014] In this invention, the induction coil is set on the lifting frame. The vertical position of the induction coil can be adjusted as needed, and a guide ring is used to guide the cable so that it can pass smoothly through the induction coil. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the cable take-up frame structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the support unit structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the lifting frame structure of this utility model;

[0019] Figure 5 This is a circuit block diagram of the present invention.

[0020] In the diagram: 1. Take-up frame; 2. Lifting frame; 3. Pay-off frame; 4. Battery; 5. Induction coil; 6. Guide ring; 7. Winding roller;

[0021] 11. Base; 12. Support frame; 13. Bearing seat; 14. Rotary disk; 15. Support column; 16. Hydraulic cylinder; 17. Motor; 18. Support rod;

[0022] 21. Base plate; 22. Sliding sleeve; 23. Slide plate; 24. Top plate; 25. Electric push rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0024] like Figures 1 to 5 As shown, this utility model discloses a fault cable precise positioning device. The technical solution adopted includes a take-up frame 1 and a pay-off frame 3. The take-up frame 1 also includes a support unit. The support unit is provided in two sets, and a winding roller 7 is provided between the two sets of support units. The pay-off frame 3 has the same structure as the take-up frame 1.

[0025] The support unit includes a base 11, a support frame 12, and a rotating disk 14. The support frame 12 is mounted on the base 11, and a support rod 18 is slidably connected inside the support frame 12.

[0026] The support frame 12 includes diagonal rods and sleeves. The diagonal rods are provided in three sets for supporting the sleeves. The sleeves are cylindrical shells with open ends. The support rods 18 are slidably connected inside the sleeves.

[0027] The bottom of the support rod 18 is connected to the telescopic end of the hydraulic cylinder 16. The fixed end of the hydraulic cylinder 16 is mounted on the base 11. The top of the support rod 18 is rotatably connected to the rotating disk 14 through the bearing seat 13. The rotating disk 14 is driven by the motor 17. Support columns 15 supporting the winding roller 7 are provided on the facing surfaces of the two sets of rotating disks 14. The support columns 15 are also provided with anti-slip rubber pads to increase the friction between them and the winding roller 7. When the motor 17 drives the support columns 15 to rotate, it can drive the winding roller 7 to rotate.

[0028] A lifting frame 2 is also provided between the take-up frame 1 and the release frame 3. The lifting frame 2 is located on the side close to the take-up frame 1, and an induction coil 5 is provided on the lifting frame 2. The induction coil 5 is used to detect the AC current in the faulty cable, thereby determining the break point.

[0029] A battery 4 is connected to the cable take-up frame 1 via a mounting plate, and the battery 4 provides AC power to the cable to be tested.

[0030] The lifting frame 2 includes a base plate 21, a telescopic rod, and a top plate 24. The base plate 21 is telescopically connected to the top plate 24, and the induction coil 5 is installed on the top plate 24.

[0031] The telescopic rod includes a sliding sleeve 22 and a sliding plate 23. The sliding sleeve 22 is mounted on the base plate 21, and the sliding plate 23 is slidably connected inside the sliding sleeve 22. The sliding plate 23 is driven by an electric push rod 25.

[0032] The top plate 24 is also equipped with guide rings 6. There are two sets of guide rings 6, which are symmetrically arranged on both sides of the induction coil 5 for guiding the cable to be tested.

[0033] The working principle of this utility model is as follows: When in use, the device is connected to electricity and connected to an external PLC control center. The PLC control center controls the opening and closing of the electrical components in the device.

[0034] The battery 4 can provide safe voltage AC power and is fixed on the rotating disk 14 of the take-up frame 1. It is stationary relative to the winding roller 7 and can rotate together with the winding roller 7.

[0035] After the coiled faulty cable is placed on the pay-off frame 3, the outer end of the faulty cable is passed through the multi-winding induction coil 5 and then wound onto the winding roller 7 of the take-up frame 1.

[0036] Next, connect the faulty core of the open-circuit cable and any intact core to the battery 4. Then, gradually rewind the faulty cable onto the winding roller 7 of the take-up frame 1.

[0037] During this process, the faulty cable is energized with alternating current. When the faulty cable passes through induction coil 5, induction coil 5 generates an induced current. When the open-circuit fault point passes through induction coil 5, the induced current immediately disappears. Induction coil 5 can quickly transmit this information to motor 17 on take-up frame 1 and pay-off frame 3 via the PLC control center, causing them to stop rotating. At this point, the cable inside induction coil 5 is the location of the fault point. This allows for precise location and repair.

[0038] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0039] Components not described in detail in this article are existing technologies.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for accurately locating faulty cables, characterized in that: It includes a take-up frame (1) and a pay-off frame (3). The take-up frame (1) also includes a support unit. The support unit is provided in two sets, and a winding roller (7) is provided between the two sets of support units. The pay-off frame (3) has the same structure as the take-up frame (1). A lifting frame (2) is also provided between the take-up frame (1) and the pay-off frame (3). The lifting frame (2) is located on the side close to the take-up frame (1), and an induction coil (5) is provided on the lifting frame (2). A battery (4) is connected to the take-up frame (1) via a mounting plate, and the battery (4) provides AC power to the cable to be tested.

2. The fault cable precise positioning device according to claim 1, characterized in that: The support unit includes a base (11), a support frame (12), and a rotating disk (14). The support frame (12) is provided on the base (11). A support rod (18) is slidably connected inside the support frame (12). The bottom of the support rod (18) is connected to the telescopic end of the hydraulic cylinder (16). The top of the support rod (18) is rotatably connected to the rotating disk (14) through a bearing seat (13). The rotating disk (14) is driven by a motor (17). Support columns (15) supporting the winding roller (7) are provided on the facing surfaces of the two sets of rotating disks (14).

3. The fault cable precise positioning device according to claim 2, characterized in that: The support frame (12) includes diagonal rods and sleeves. The diagonal rods are provided in three sets for supporting the sleeves. The support rod (18) is slidably connected inside the sleeve.

4. The fault cable precise positioning device according to claim 1, characterized in that: The lifting frame (2) includes a base plate (21), a telescopic rod and a top plate (24). The base plate (21) is telescopically connected to the top plate (24), and the induction coil (5) is installed on the top plate (24).

5. A fault cable precise positioning device according to claim 4, characterized in that: The telescopic rod includes a sliding sleeve (22) and a sliding plate (23). The sliding sleeve (22) is mounted on the base plate (21), and the sliding plate (23) is slidably connected inside the sliding sleeve (22). The sliding plate (23) is driven by an electric push rod (25).

6. The fault cable precise positioning device according to claim 4, characterized in that: The top plate (24) is also equipped with a guide ring (6). There are two sets of guide rings (6), which are symmetrically arranged on both sides of the induction coil (5) for guiding the cable to be tested.

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