Cable measuring device for electric power engineering construction

Abstract

The utility model relates to the technical field of cable measurement, in particular to a cable measuring device for electric power engineering construction, which comprises a detection table, a sliding support, a supporting shaft, a rigid bearing, a top shaft, a rotary encoder and a contact sleeve disc, the supporting shaft is fixedly connected to the top of the sliding support, the rigid bearing is mounted on the inner sides of the supporting shaft and the contact sleeve disc, and the top shaft is fixedly connected to the top of the sliding support. The top of the supporting shaft is sleeved with the contact sleeve disc, and the rotary encoder is installed in the middle of the top end of the top shaft. According to the cable measuring device for electric power engineering construction, the rotary encoder located on the top shaft and aligned with the central axis of the top shaft directly collects the number of rotation turns of the contact sleeve disc, converts the number of rotation turns into an electric signal and automatically calculates the length of the cable, manual tape measurement is completely replaced, the surface of the fine grinding disc is precisely ground and coated with a lubricant, and the measurement accuracy is improved. Sliding friction with the cable is greatly reduced, tension fluctuation caused by too large friction of a traditional compression roller is avoided, the hydraulic cylinder drives the fine grinding disc to dynamically adjust pressure, slipping is prevented, and the surface of the cable is prevented from being damaged by pressing.

Description

Technical Field

[0001] This application relates to the field of cable measurement technology, and in particular to a cable measurement device for power engineering construction. Background Technology

[0002] In power engineering construction, cable surveying is a key step in ensuring the quality of line design, laying, and operation and maintenance. The rational selection of cable laying methods is very important for ensuring the transmission quality, reliability, construction, and maintenance of the line.

[0003] A search revealed that CN222747906U discloses a cable measuring device for power engineering construction. The device features a measuring mechanism that allows for convenient equidistant marking of the cable to be measured, facilitating the measurement of longer cables and improving accuracy during subsequent cutting and observation. Furthermore, the marking process avoids direct contact with the cable surface, preventing damage. An adjustment mechanism allows for easy adjustment of the distance between the moving and stationary pressure rollers, facilitating cable guidance and adjustment. This device is adaptable to cables of different specifications and provides straightening and guiding capabilities, simplifying the measurement process.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist that need to be improved: Although the above-mentioned device can measure long cables and reduce the floor space, the length still needs to be manually marked with measuring equipment such as tape measures, resulting in a low degree of automation; and the pressure roller of the above-mentioned device only presses down without any other processing, resulting in a large sliding friction on its surface. The large friction will cause the tension between the pressure roller and the cable to be unstable and shake, thereby causing the moving pressure roller to bounce radially and reducing the measurement effect. Utility Model Content

[0005] This application provides a cable measuring device for power engineering construction to improve the following technical problems: Although the above-mentioned device can measure long cables and reduce the floor space, the length still needs to be manually marked with measuring equipment such as tape measures, resulting in a low degree of automation; and the pressure roller of the above-mentioned device only presses down without any other processing, and its surface has a large sliding friction. The large friction will cause the tension between the pressure roller and the cable to be unstable and shake, thereby causing the moving pressure roller to run radially and reducing the measurement effect.

[0006] This application provides a cable measuring device for power engineering construction, which adopts the following technical solution:

[0007] A cable measuring device for power engineering construction includes a testing platform, a sliding support, a support shaft, a rigid bearing, a top shaft, a rotary encoder, and a contact sleeve. The sliding support is slidably connected to the top center of the testing platform, the support shaft is fixedly connected to the top of the sliding support, the rigid bearing is installed inside the support shaft and the contact sleeve, the contact sleeve is sleeved on the top of the support shaft, the top shaft is fixedly connected to the top of the support shaft, the rotary encoder is installed at the top center of the top of the top shaft, and a docking assembly is also provided on the outer side of the sliding support.

[0008] The testing platform provides a moving track for the sliding support, which is used to control the distance between the upper contact sleeves by sliding connection. The support shaft is used to support the contact sleeves and reduce rotational resistance. The high rigidity of the rigid bearing can suppress radial runout and ensure stable cable tension. The contact sleeves are in direct contact with the cable. The rotary encoder is used to convert the number of rotations of the contact sleeves into an electrical signal to automatically calculate the cable length. The docking assembly is used to assist the cable in smoothly entering the contact sleeves and reduce lateral sway.

[0009] In one feasible technical solution of this application, the docking assembly includes a fixed plate, a DC motor, a bidirectional screw, a support plate, and a linear shaft. The fixed plate is fixedly connected to both sides of the testing table. The DC motor is installed on the outside of the fixed plate. The bidirectional screw is fixedly connected to the outside of the output end of the DC motor. The support plate is threaded onto the outside of the bidirectional screw and fixedly connected to the surface of the sliding support. The linear shaft passes through the interior of the support plate and is fixedly connected to the surface of the fixed plate.

[0010] In one feasible technical solution of this application, the connection between the sliding support and the detection table is further provided with a sliding groove and a sliding plate of equal size.

[0011] In one feasible technical solution of this application, the outer side of the top shaft is further provided with several sets of annular array reinforcing ribs.

[0012] In one feasible technical solution of this application, the top of the contact sleeve is further provided with an L-shaped plate, a hydraulic cylinder and a fine grinding disc. The L-shaped plate is fixedly connected to the top of the contact sleeve, the hydraulic cylinder is installed on the outside of the L-shaped plate, and the fine grinding disc is slidably sleeved on the outside of the contact sleeve and fixedly connected to the output end of the hydraulic cylinder.

[0013] In one feasible technical solution of this application, the surfaces of both the grinding disc and the contact sleeve are coated with a lubricant to reduce friction.

[0014] In one feasible technical solution of this application, a take-up roller frame is also installed on both sides of the detection table, and the roller shaft of the take-up roller frame is flush with the middle of the contact sleeve.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] This device features a rotary encoder located on the top shaft and aligned with its central axis. This encoder directly collects the number of rotations of the contact sleeve, converts it into an electrical signal, and automatically calculates the cable length, completely replacing manual measurement with a measuring tape and reducing human error. The docking assembly automatically adjusts the position of the sliding support to accommodate different cable lengths, further reducing manual intervention and achieving fully automated operation. Furthermore, the surface of the precision grinding disc is precisely ground and coated with lubricant, significantly reducing sliding friction with the cable and avoiding tension fluctuations caused by excessive friction in traditional pressure rollers. The hydraulic cylinder-driven precision grinding disc dynamically adjusts the pressure, ensuring moderate contact force between the cable and the contact sleeve, preventing slippage and avoiding damage to the cable surface. Rigid bearings effectively suppress radial runout of the contact sleeve, ensuring stable cable tension during measurement, reducing wobbling, and thus improving the accuracy of the measurement data. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a cable measuring device for power engineering construction according to an embodiment of this application.

[0019] Figure 2 This is a side view of the take-up roller frame and the contact sleeve in an embodiment of this application.

[0020] Figure 3 This is a diagram illustrating the docking effect of the contact sleeve in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the support shaft and rigid bearing in an embodiment of this application.

[0022] Figure 5 This is a distribution diagram of the rotary encoder in the embodiments of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Testing table; 2. Sliding support; 3. Support shaft; 4. Rigid bearing; 5. Top shaft; 6. Rotary encoder; 7. Contact sleeve;

[0025] 8. Connecting assembly; 81. Fixing plate; 82. DC motor; 83. Bidirectional screw; 84. Elevating plate; 85. Linear shaft;

[0026] 9. Slide groove; 10. Slide plate; 11. Reinforcing rib; 12. L-shaped plate; 13. Hydraulic cylinder; 14. Grinding disc; 15. Lubricant; 16. Take-up roller frame. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a cable measuring device for power engineering construction. (Refer to...) Figures 1 to 5The cable measuring device for power engineering construction includes a testing platform 1, a sliding support 2, a support shaft 3, a rigid bearing 4, a top shaft 5, a rotary encoder 6, and a contact sleeve 7. The sliding support 2 is slidably connected to the top center of the testing platform 1, the support shaft 3 is fixedly connected to the top of the sliding support 2, the rigid bearing 4 is installed on the inner side of the support shaft 3 and the contact sleeve 7, the contact sleeve 7 is fitted on the top of the support shaft 3, the top shaft 5 is fixedly connected to the top of the support shaft 3, the rotary encoder 6 is installed at the top center of the top of the top shaft 5, and a docking assembly 8 is also provided on the outer side of the sliding support 2.

[0033] The testing platform 1 provides a moving track for the sliding support 2. The sliding support 2 is used to control the distance between the upper contact sleeves 7 by sliding connection. The support shaft 3 is used to support the contact sleeves 7 and reduce rotational resistance. The high rigidity of the rigid bearing 4 can suppress radial runout and ensure stable cable tension. The contact sleeves 7 are in direct contact with the cable. The rotary encoder 6 is used to convert the number of rotations of the contact sleeves 7 into an electrical signal to automatically calculate the cable length. The docking assembly 8 is used to assist the cable to smoothly enter the contact sleeves 7 and reduce lateral sway.

[0034] The docking assembly 8 includes a fixed plate 81, a DC motor 82, a bidirectional screw 83, a support plate 84, and a linear shaft 85. The fixed plate 81 is fixedly connected to both sides of the testing table 1. The DC motor 82 is installed on the outside of the fixed plate 81. The bidirectional screw 83 is fixedly connected to the outside of the output end of the DC motor 82. The support plate 84 is threaded onto the outside of the bidirectional screw 83 and is fixedly connected to the surface of the sliding support 2. The linear shaft 85 passes through the interior of the support plate 84 and is fixedly connected to the surface of the fixed plate 81.

[0035] The connection between the sliding support 2 and the testing table 1 is also provided with a sliding groove 9 and a sliding plate 10 of equal size.

[0036] Several sets of ring-shaped reinforcing ribs 11 are also provided on the outer side of the top shaft 5.

[0037] The top of the contact sleeve 7 is also provided with an L-shaped plate 12, a hydraulic cylinder 13 and a fine grinding disc 14. The L-shaped plate 12 is fixedly connected to the top of the contact sleeve 7, the hydraulic cylinder 13 is installed on the outside of the L-shaped plate 12, and the fine grinding disc 14 is slidably sleeved on the outside of the contact sleeve 7 and fixedly connected to the output end of the hydraulic cylinder 13.

[0038] The surfaces of the fine grinding disc 14 and the contact sleeve disc 7 are both coated with a lubricant 15 to reduce friction.

[0039] On both sides of the testing table 1, there are also take-up roller frames 16, and the roller shaft of the take-up roller frame 16 is flush with the middle of the contact sleeve 7.

[0040] The general process of using the cable measuring device for power engineering construction in this embodiment of the application is as follows:

[0041] The cable to be tested is placed on the testing table 1, with both ends passing through the take-up rollers 16 on both sides, ensuring that the cable is aligned with the center of the contact sleeve 7 to avoid misalignment during measurement. The DC motor 82 is started, driving the bidirectional screw 83 to rotate, which in turn moves the support plate 84 along the linear axis 85, thereby adjusting the position of the sliding support 2 so that the spacing between the two sets of contact sleeves 7 adapts to the cable width. Then, the hydraulic cylinder 13 is activated, pushing the grinding disc 14 downwards to clamp the cable together with the contact sleeve 7. The surface of the grinding disc 14 is coated with lubricant 15 to reduce friction and prevent damage to the cable surface. As the cable moves under traction, it drives the contact sleeve 7 to rotate, and this rotation is transmitted to the rotary encoder 6 via the support shaft 3. The rotary encoder 6 monitors the number of rotations of the contact sleeve 7 in real time, converts it into an electrical signal, and calculates the cable length. The data can be directly displayed or transmitted to an external recording system. The rigid bearing 4 ensures smooth rotation of the contact sleeve 7 and suppresses radial runout; the reinforcing rib 11 enhances the rigidity of the top shaft 5, preventing deformation during high-speed rotation and ensuring measurement accuracy. After the measurement is completed, the hydraulic cylinder 13 retracts, the fine grinding disc 14 releases the cable, and the cable is unloaded from the take-up roller frame 16 by the take-up equipment.

[0042] The beneficial technical effects of the cable measuring device for power engineering construction according to the embodiments of this application are roughly as follows:

[0043] The rotary encoder 6, located on the top shaft 5 and aligned with its central axis, directly collects the number of rotations of the contact sleeve 7, converts it into an electrical signal, and automatically calculates the cable length, completely replacing manual measurement with a measuring tape and reducing human error. The docking assembly 8 can automatically adjust the position of the sliding support 2 to adapt to different cable lengths, further reducing manual intervention and achieving fully automated operation. In addition, the surface of the precision grinding disc 14 is precisely ground and coated with lubricant 15, significantly reducing sliding friction with the cable and avoiding tension fluctuations caused by excessive friction in traditional pressure rollers. The hydraulic cylinder 13 drives the precision grinding disc 14 to dynamically adjust the pressure, ensuring moderate contact force between the cable and the contact sleeve 7, preventing slippage and avoiding damage to the cable surface. The rigid bearing 4 effectively suppresses the radial runout of the contact sleeve 7, ensuring stable cable tension during measurement, reducing wobbling, and thus improving the accuracy of the measurement data.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cable measuring device for power engineering construction, characterized in that, The system includes a testing table (1), a sliding support (2), a support shaft (3), a rigid bearing (4), a top shaft (5), a rotary encoder (6), and a contact sleeve (7). The sliding support (2) is slidably connected to the top center of the testing table (1). The support shaft (3) is fixedly connected to the top of the sliding support (2). The rigid bearing (4) is installed on the inner side of the support shaft (3) and the contact sleeve (7). The contact sleeve (7) is sleeved on the top of the support shaft (3). The top shaft (5) is fixedly connected to the top of the support shaft (3). The rotary encoder (6) is installed at the top center of the top of the top shaft (5). A docking assembly (8) is also provided on the outer side of the sliding support (2). The detection platform (1) provides a moving track for the sliding support (2). The sliding support (2) is used to control the distance between the upper contact sleeves (7) by sliding connection. The support shaft (3) is used to support the contact sleeves (7) and reduce rotational resistance. The high rigidity of the rigid bearing (4) can suppress radial runout and ensure stable cable tension. The contact sleeves (7) are in direct contact with the cable. The rotary encoder (6) is used to convert the number of rotations of the contact sleeves (7) into an electrical signal and automatically calculate the cable length. The docking assembly (8) is used to assist the cable to smoothly enter the contact sleeves (7) and reduce lateral sway.

2. The cable measuring device for power engineering construction according to claim 1, characterized in that, The docking assembly (8) includes a fixed plate (81), a DC motor (82), a bidirectional screw (83), a support plate (84), and a linear shaft (85). The fixed plate (81) is fixedly connected to both sides of the testing table (1). The DC motor (82) is installed on the outside of the fixed plate (81). The bidirectional screw (83) is fixedly connected to the outside of the output end of the DC motor (82). The support plate (84) is threaded onto the outside of the bidirectional screw (83) and is fixedly connected to the surface of the sliding support (2). The linear shaft (85) passes through the interior of the support plate (84) and is fixedly connected to the surface of the fixed plate (81).

3. The cable measuring device for power engineering construction according to claim 1, characterized in that, The connection between the sliding support (2) and the detection table (1) is also provided with a sliding groove (9) and a sliding plate (10) of equal size.

4. The cable measuring device for power engineering construction according to claim 1, characterized in that, The outer side of the top shaft (5) is also provided with several sets of annular array reinforcing ribs (11).

5. The cable measuring device for power engineering construction according to claim 1, characterized in that, The top of the contact sleeve (7) is also provided with an L-shaped plate (12), a hydraulic cylinder (13) and a fine grinding disc (14). The L-shaped plate (12) is fixedly connected to the top of the contact sleeve (7). The hydraulic cylinder (13) is installed on the outside of the L-shaped plate (12). The fine grinding disc (14) is slidably sleeved on the outside of the contact sleeve (7) and fixedly connected to the output end of the hydraulic cylinder (13).

6. The cable measuring device for power engineering construction according to claim 5, characterized in that, The surfaces of the grinding disc (14) and the contact sleeve disc (7) are both coated with a lubricant (15) to reduce friction.

7. The cable measuring device for power engineering construction according to claim 1, characterized in that, The detection platform (1) is also equipped with a take-up roller frame (16) on both sides, and the roller shaft of the take-up roller frame (16) is flush with the middle of the contact sleeve (7).

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