Loading device of cable support

Abstract

The embodiment of the invention discloses a loading device for a cable support, and the device comprises a loading device fixing mechanism which comprises an installation substrate and a support fixing part installed on the installation substrate, the support fixing part is used for fixing the cable support, and one side of the installation substrate is provided with a bearing frame body; the transverse loading mechanism comprises a first guide pulley fixed at the side part of the bearing frame body and a first pull rope wound around the first guide pulley, and the first pull rope is used for being connected with the tail end of the cable bracket and applying a transverse load to the cable bracket under the guidance of the first guide pulley; and the vertical loading mechanism comprises a second guide pulley fixed at the bottom of the bearing frame body and a second pull rope wound around the second guide pulley, and the second pull rope is used for being connected with the tail end of the cable bracket and applying a vertical load to the cable bracket under the guidance of the second guide pulley. The device can load transverse and vertical loads at the same time, the structure is simple, and the test cost is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cable support testing, and in particular to a loading device for a cable support. Background Art

[0002] In power transmission systems, cable supports are critical components supporting cables, and their performance is crucial to the safety and stability of the cable system. In actual operation, cable supports are subject to both vertical loads generated by the cable's own weight and lateral loads caused by wind loads, earthquakes, and other factors. To ensure reliable operation, comprehensive mechanical performance testing is required to simulate real-world operating conditions.

[0003] However, existing cable support loading devices present a number of problems. Some devices can only apply lateral or vertical loads individually, failing to meet the requirements of simultaneous loading tests. Others, while capable of simultaneous loading, are complex, bulky, inconvenient to operate, and expensive, with loading accuracy and stability difficult to guarantee. Furthermore, existing devices lack versatility, often requiring extensive modification and adjustment when testing cable supports of varying specifications, severely impacting test efficiency and cost-effectiveness. Therefore, the development of new cable support loading devices is of great significance. Summary of the Invention

[0004] The present application aims to solve at least one technical problem existing in the prior art. Specifically, an embodiment of the present application provides a loading device for a cable bracket to solve the problems that the existing loading device cannot load at the same time, has a complex structure, and is inconvenient to operate.

[0005] The purpose of this application can be achieved through the following technical solutions:

[0006] The present application provides a loading device for a cable support, the loading device comprising:

[0007] The fixing mechanism includes a mounting base and a bracket fixing piece mounted on the mounting base, the bracket fixing piece is used to fix the cable bracket, and a bearing frame is provided on one side of the mounting base;

[0008] A transverse loading mechanism includes a first guide pulley fixed to a side portion of the carrier body and a first pull rope passing through the first guide pulley, wherein the first guide pulley is used to change the load direction of the first pull rope, and the first pull rope is used to connect to the end of the cable support and apply a transverse load to the cable support under the guidance of the first guide pulley;

[0009] The vertical loading mechanism includes a second guide pulley fixed at the bottom of the supporting frame and a second pull rope wrapped around the second guide pulley. The second guide pulley is used to change the load direction of the second pull rope. The second pull rope is used to connect the end of the cable bracket and apply a vertical load to the cable bracket under the guidance of the second guide pulley.

[0010] Optionally, the loading device further includes a load measuring mechanism, which includes:

[0011] The first tension sensor is connected to the first pull rope

[0012] a second tension sensor connected to the second pull rope;

[0013] The multi-channel display is electrically connected to the first tension sensor and the second tension sensor, and displays the horizontal load value of the first tension rope and the vertical load value of the second tension rope in real time.

[0014] Optionally, the loading device also includes a displacement strain measuring mechanism, which includes a foil strain gauge, a displacement sensor and a multi-channel acquisition instrument. The foil strain gauge is arranged at a predetermined force point of the cable bracket to detect strain data. The displacement sensor monitors the deflection change of the cable bracket in real time. The multi-channel acquisition instrument collects strain signals based on the strain data and displacement signals based on the deflection change and stores and processes them.

[0015] Optionally, the transverse loading mechanism further includes a first hand chain hoist, which is connected to an end of the first pull rope away from the cable support and is used to provide tension to the first pull rope.

[0016] Optionally, a first mounting rod extending above the first guide pulley is provided on the mounting base plate, and the first hand chain hoist is mounted on the first mounting rod and suspended above the first guide pulley.

[0017] Optionally, the vertical loading mechanism further includes a second hand chain hoist, which is connected to an end of the second pull rope away from the cable support and is used to provide tension to the second pull rope.

[0018] Optionally, a second mounting rod extending above the second guide pulley is provided on the mounting base plate, and the second hand chain hoist is mounted on the second mounting rod and suspended above the second guide pulley.

[0019] Optionally, the supporting frame includes two oppositely arranged columns and a crossbeam connecting the two, the first guide pulley is installed on the inner side of one of the columns, and the second guide pulley is arranged on the top of the crossbeam.

[0020] Optionally, the first guide pulley is detachably connected to the supporting frame body via a first bolt, and a first waist hole is provided on the supporting frame body corresponding to the first bolt, and the first waist hole extends in the vertical direction.

[0021] Optionally, the second guide pulley is detachably connected to the supporting frame body via a second bolt, and a second waist hole is provided on the supporting frame body corresponding to the second bolt, and the second waist hole extends in the horizontal direction.

[0022] One or more of the above embodiments of the present application have at least one or more of the following beneficial effects:

[0023] The lateral and longitudinal loading mechanisms accurately simulate the simultaneous lateral and vertical loads that cable supports experience in actual use. This allows for the application of both lateral and vertical loads in a single test, significantly reducing the number and duration of tests, significantly improving test efficiency, and lowering testing costs. Furthermore, the device boasts a relatively simple structure, easy operation, and excellent practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present application will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a perspective view of a loading device in one embodiment of the present application;

[0026] Figure 2 This is a front view of a loading device in one of the embodiments of the present application.

[0027] Description of reference numerals:

[0028] 1. Fixing mechanism; 11. Mounting base plate; 12. Bracket fixing member; 13. First mounting rod; 14. Second mounting rod; 2. Horizontal loading mechanism; 21. First guide pulley; 22. First pull rope; 23. First chain hoist; 3. Vertical loading mechanism; 31. Second guide pulley; 32. Second pull rope; 33. Second chain hoist; 4. Load measuring mechanism; 41. First tension sensor; 42. Second tension sensor; 43. Multi-channel display; 5. Carrying frame; 51. Column; 52. Beam; 6. Cable bracket. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] See also Figure 1 and Figure 2 As shown, in some embodiments, the present application provides a loading device for a cable bracket, which includes a fixing mechanism 1, a transverse loading mechanism 2, a vertical loading mechanism 3, a load measuring mechanism 4 and a displacement strain measuring mechanism (not shown).

[0031] The fixing mechanism 1 includes a mounting base 11 and a bracket fixing member 12 mounted on the mounting base 11. The mounting base 11 provides stable support for the entire device and can be made of high-strength metal, such as steel plate, to ensure that it does not deform during loading. The bracket fixing member 12 is connected to the mounting base 11 by welding or bolts. For cable brackets 6 of different specifications, the bracket fixing member 12 can be designed with a variety of suitable fixing methods, such as using a clamp or clips arranged opposite to each other up and down, which can directly or indirectly firmly fix various types of support-arm cable brackets 6. A support frame 5 is provided on one side of the mounting base 11, and the support frame 5 provides an installation base for other mechanisms.

[0032] The lateral loading mechanism 2 is mainly composed of a first guide pulley 21 and a first pull rope 22. The first guide pulley 21 is installed on the side of the supporting frame 5 by bolts or other fixing methods to ensure its stable position and enable the first guide pulley 21 to be opposite to the end of the cable support 6 on the left and right. This relative setting is crucial, as it provides an accurate path for the first pull rope 22 to guide the load direction. One end of the first pull rope 22 is firmly wrapped around the end of the cable support 6. A special fixing device or method, such as a special rope buckle, winding reinforcement, etc., can be used to ensure that the pull rope is tightly connected to the cable support 6 and will not fall off or loosen during the loading process. The other end of the first pull rope 22 passes around the first guide pulley 21. Through such a design, the force applied by manual operation or mechanical equipment can be converted into a lateral load on the end of the cable support 6 with the help of the first pull rope 22 and guided by the first guide pulley 21. In this way, whether manual force is applied or loading is performed using mechanical equipment, a stable and controllable lateral load can be accurately applied to the end of the cable bracket 6 through the first pull rope 22, meeting the requirements for the lateral load-bearing performance test of the cable bracket 6.

[0033] The vertical loading mechanism 3 is mainly composed of a second guide pulley 31 and a second pull rope 32. Among them, the second guide pulley 31 is installed at the bottom of the crossbeam 52 of the supporting frame 5. Its position must be accurately determined during installation so that after the cable bracket 6 to be tested is assembled, the second guide pulley 31 can be opposite to the end of the cable bracket 6 up and down. This up and down relative setting provides a precise path for the second pull rope 32 to guide the vertical load. One end of the second pull rope 32 is firmly connected to the end of the cable bracket 6, and special connection accessories such as hooks and snap rings can be used to ensure that the connection is firm and reliable, and there will be no separation or slippage during the loading process. The other end of the second pull rope 32 passes around the second guide pulley 31. In this way, the force applied by manual operation or mechanical equipment can be converted into a vertical load on the end of the cable bracket 6 with the help of the second pull rope 32 through the guiding effect of the second guide pulley 31. In this way, whether manual force is applied or loading is performed with the help of mechanical equipment, a stable and controllable vertical load can be accurately applied to the end of the cable support 6 through the second pull rope 32, meeting the requirements of the vertical bearing performance test of the cable support 6.

[0034] The load measuring mechanism 4 is the core part for accurately monitoring the load on the cable support 6 during the loading process, and detects the loads exerted on the cable support 6 by the first pull rope 22 and the second pull rope 32 in real time.

[0035] The displacement and strain measurement mechanism includes a foil strain gauge, a displacement sensor and a multi-channel acquisition instrument. The foil strain gauge is installed at the predetermined force point of the cable bracket 6 to detect strain data. The displacement sensor monitors the deflection change of the cable bracket 6 in real time. The multi-channel acquisition instrument synchronously collects strain signals and displacement signals and stores and processes them.

[0036] The loading device in this embodiment can accurately simulate the situation where the cable bracket 6 is subjected to the simultaneous action of lateral and vertical loads in an actual use environment through the lateral loading mechanism 2 and the longitudinal loading mechanism, and comprehensively and realistically reflect the mechanical properties of the bracket. And through the precise measurement of load and displacement strain, the deformation law, stress distribution and bearing capacity of the bracket under different load combinations can be deeply studied, and then its performance and safety can be accurately evaluated, and potential weak links can be effectively discovered. Moreover, the application of lateral and vertical loads can be completed in one test, which greatly reduces the number and time of tests, significantly improves test efficiency, and reduces test costs. In addition, the device structure is relatively simple, the functions of each component are clear, the operation is convenient, and it has good practicality.

[0037] In some embodiments, the first pull rope 22 and the second pull rope 32 are both steel ropes, which are twisted from multiple strands of high-strength steel wires. They can withstand large tensile forces without breaking easily, and fully meet the high standard requirements for pull rope strength during the application of horizontal and vertical loads when performing a loading test on the cable support 6.

[0038] In some embodiments, the load measurement mechanism 4 includes a first tension sensor 41, a second tension sensor 42, and a multi-channel display 43. The first tension sensor 41 is connected to the first tension rope 22 and is used to measure the horizontal load applied by the first tension rope 22 to the cable support 6; the second tension sensor 42 is connected to the second tension rope 32 and is used to measure the vertical load applied by the second tension rope 32 to the cable support 6. The first tension sensor 41 and the second tension sensor 42 respectively convert the measured load signals into electrical signals and transmit them to the multi-channel display 43. The multi-channel display 43 is electrically connected to the first tension sensor 41 and the second tension sensor 42, receives and processes these signals through internal circuits, and displays the horizontal load value of the first tension rope 22 and the vertical load value of the second tension rope 32 in real time in an intuitive manner such as digital or graphical formats, making it convenient for test personnel to observe and record at any time.

[0039] Furthermore, a communication module (not shown) is integrated into the multi-channel display 43. The communication module can be a wireless communication module, such as a Wi-Fi or Bluetooth module. By setting corresponding network parameters or pairing a connection, a communication link is established with a remote monitoring terminal (such as a computer or mobile phone). When the load fluctuation measured by the first tension sensor 41 or the second tension sensor 42 exceeds a threshold value pre-set in the multi-channel display 43, the control circuit within the multi-channel display 43 triggers an audible and visual alarm device. The audible and visual alarm device can use a high-brightness LED light and a loud buzzer to alert on-site personnel by flashing lights and emitting an alarm sound. At the same time, the alarm information is sent to the remote monitoring terminal via the communication module, allowing remote personnel to promptly understand test abnormalities, avoid damage to the cable bracket 6 or inaccurate test results due to load abnormalities, and ensure test safety and data reliability.

[0040] In some embodiments, the lateral loading mechanism 2 further includes a first chain hoist 23 connected to the end of the first pull rope 22 distal from the cable support 6. To ensure stable operation of the first chain hoist 23, a first mounting rod 13 extending above the first guide pulley 21 is welded or bolted to the mounting base 11. The first chain hoist 23 is suspended from the first mounting rod 13 via a hook or dedicated connector and is suspended above the first guide pulley 21. This arrangement facilitates operation of the chain hoist by the tester, who can tighten or loosen the first pull rope 22 by pulling the chain, thereby precisely adjusting the lateral load applied to the cable support 6.

[0041] The provision of the first hand chain hoist 23 makes the application of lateral loads more convenient and controllable. This allows testers to precisely adjust the load according to test requirements, improving loading flexibility and accuracy. This helps to more accurately simulate the lateral loads experienced by the cable support 6 under actual working conditions, providing more reliable data for evaluating its lateral load-bearing performance.

[0042] In some embodiments, the vertical loading mechanism 3 further includes a second hand chain hoist 33, which is connected to the end of the second pull rope 32 away from the cable support 6. To ensure the stable operation of the second hand chain hoist 33, a second mounting rod 14 extending to the top of the second guide pulley 31 is provided on the mounting base 11. The second hand chain hoist 33 is suspended on the second mounting rod 14 by a hook or a special connector and is suspended above the second guide pulley 31. The material, connection method (welding or bolt connection) and connection requirements of the second mounting rod 14 with the second hand chain hoist 33 are similar to those of the first mounting rod 13. It is also necessary to ensure a firm connection and easy operation so that the tester can adjust the vertical load applied to the cable support 6 by operating the second hand chain hoist 33. It is understandable that the vertical load and the lateral load are perpendicular to each other.

[0043] It's worth noting that the first and second chain hoists 23 and 33 contribute to labor-saving, precise loading, and ease of operation during the cable support 6 loading test. Their internal gear system allows for minimal chain pull, allowing operators to easily pull the rope and reducing labor intensity. During the test, by pulling the chain section by section, the load can be precisely increased or decreased according to the designed ratio, ensuring accurate loading. Their compact structure and easy installation are unrestricted by site, allowing for flexible installation on the support frame 5, allowing for convenient operation at any time and facilitating testing.

[0044] In some embodiments, the support frame 5 is composed of two columns 51 and a crossbeam 52 connecting the two. Both the columns 51 and the crossbeam 52 are made of I-beams. The two columns 51 and the crossbeam 52 are connected by welding or bolts to form an integral frame structure, and the connection is reinforced with reinforcing ribs to enhance the overall strength and stability of the support frame 5. The first guide pulley 21 is installed on the inner side of one of the columns 51 and is fixed by a first bolt passing through a first waist hole (not shown) on the column 51. The first waist hole extends in the vertical direction, and its length is designed according to the maximum height range that may need to be adjusted. During installation, the height of the first guide pulley 21 can be adjusted within the range of the first waist hole according to the specific size of the cable support 6, so that it is in a suitable position with the end of the cable support 6, ensuring that the first pull rope 22 can smoothly pass around the pulley to apply a horizontal load. The second guide pulley 31 is arranged on the top of the beam 52 and is fixed by a second bolt passing through a second waist hole (not shown) on the beam 52. The second waist hole extends in the horizontal direction, and its length and width are designed according to the maximum lateral range that may need to be adjusted and the second bolt size. The lateral position of the second guide pulley 31 can be adjusted within the range of the second waist hole according to the lateral position requirements of the cable bracket 6 to ensure that the second pull rope 32 can accurately apply a vertical load to the cable bracket 6.

[0045] The adjustable connection between the first and second guide pulleys 21 and 31 allows the transverse and longitudinal loading mechanisms 2 to better adapt to cable supports 6 of varying specifications, significantly increasing the versatility of the device. Testers can quickly adjust the pulley positions based on actual conditions to ensure accurate application of transverse and vertical loads to the cable supports 6. This provides strong support for studying the vertical load-bearing performance of cable supports 6 of varying specifications, while also improving the efficiency and accuracy of test preparation.

[0046] The above is a detailed description of an embodiment of the present application, but the content is only a preferred embodiment of the present application and cannot be considered to limit the scope of implementation of the present application. All equivalent changes and improvements made within the scope of the present application should still fall within the scope of the patent coverage of the present application.

[0047] It should be noted that the terms "first", "second" and similar terms used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. The descriptions of the directions of "left", "right", "left side", "right side", "upper", "lower", "top", "bottom" and so on in this application are all defined based on the relationship between the orientations or positions 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 structure must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. In the description of this application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0048] In the description of this application, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

Claims

1. A loading device for a cable support, characterized in that: The loading device comprises: The fixing mechanism includes a mounting base and a bracket fixing member mounted on the mounting base, the bracket fixing member is used to fix the cable bracket, and a bearing frame is provided on one side of the mounting base; a transverse loading mechanism comprising a first guide pulley fixed to a side portion of the carrier body and a first pull rope passing through the first guide pulley, wherein the first guide pulley is used to change a load direction of the first pull rope, and the first pull rope is used to connect to an end of the cable support and apply a transverse load to the cable support under the guidance of the first guide pulley; The vertical loading mechanism includes a second guide pulley fixed to the bottom of the supporting frame and a second pull rope passing through the second guide pulley. The second guide pulley is used to change the load direction of the second pull rope. The second pull rope is used to connect the end of the cable bracket and apply a vertical load to the cable bracket under the guidance of the second guide pulley.

2. The loading device according to claim 1, characterized in that: The loading device further includes a load measuring mechanism, which includes: A first tension sensor connected to the first pull rope a second tension sensor connected to the second pull rope; The multi-channel display is electrically connected to the first tension sensor and the second tension sensor, and displays the horizontal load value of the first tension rope and the vertical load value of the second tension rope in real time.

3. The loading device according to claim 2, characterized in that: The loading device also includes a displacement strain measurement mechanism, which includes a foil strain gauge, a displacement sensor and a multi-channel acquisition instrument. The foil strain gauge is arranged at a predetermined force point of the cable bracket to detect strain data. The displacement sensor monitors the deflection change of the cable bracket in real time. The multi-channel acquisition instrument collects strain signals based on the strain data and displacement signals based on the deflection change and stores and processes them.

4. The loading device according to claim 1, characterized in that: The transverse loading mechanism further includes a first hand chain hoist, which is connected to an end of the first pull rope away from the cable support and is used to provide tension to the first pull rope.

5. The loading device according to claim 4, characterized in that: A first mounting rod extending to above the first guide pulley is provided on the mounting base plate, and the first hand chain hoist is mounted on the first mounting rod and suspended above the first guide pulley.

6. The loading device according to claim 1, characterized in that: The vertical loading mechanism further includes a second hand chain hoist, which is connected to an end of the second pull rope away from the cable support and is used to provide tension to the second pull rope.

7. The loading device according to claim 6, characterized in that: A second mounting rod extending to above the second guide pulley is provided on the mounting base plate, and the second hand chain hoist is mounted on the second mounting rod and suspended above the second guide pulley.

8. The loading device according to claim 1, characterized in that: The support frame includes two oppositely arranged columns and a crossbeam connecting the two, the first guide pulley is installed on the inner side of one of the columns, and the second guide pulley is arranged on the top of the crossbeam.

9. The loading device according to any one of claims 1 to 8, characterized in that: The first guide pulley is detachably connected to the supporting frame body via a first bolt. The supporting frame body is provided with a first waist hole corresponding to the first bolt, and the first waist hole extends in a vertical direction.

10. The loading device according to any one of claims 1 to 8, characterized in that: The second guide pulley is detachably connected to the supporting frame body via a second bolt. The supporting frame body is provided with a second waist hole corresponding to the second bolt, and the second waist hole extends in a horizontal direction.

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