Steel wire rope torsion number testing device

Abstract

This utility model provides a testing device for detecting the number of torsion cycles of steel wire ropes, belonging to the field of torsion testing technology. It includes a support base, with a worktable fixedly installed at the top inside the support base. A testing mechanism is set on the upper surface of the worktable, and a sliding opening is provided at the top of the support base. This utility model solves the core problem of existing steel wire rope torsion testing equipment lacking fracture protection by setting a protective structure that combines a lifting device and a sealing device. Before testing, an air pump drives the lifting base to descend along the sliding opening to a suitable height. Simultaneously, airflow drives the first and second telescopic seats of the sealing device to extend, forming a closed protective space covering the testing area. When the steel wire rope breaks due to extreme torsion, the flying steel wire segments are blocked by the inner wall of the lifting base and the telescopic seats, and the buffer layer absorbs the kinetic energy of the flying segments, preventing the steel wire from scratching or piercing workers, significantly reducing personal safety hazards, and filling the technical gap in safety protection during the testing process in the industry.

Description

Technical Field

[0001] This utility model relates to the field of torsion detection technology, specifically to a test device for detecting the number of torsion cycles of a steel wire rope. Background Technology

[0002] As a flexible load-bearing component made of multiple strands of steel wire, steel wire rope is widely used in key fields such as mining, construction, ports, shipping, elevators, and lifting machinery due to its high strength, high toughness, impact resistance, and good flexibility. It is a core component for ensuring the safety of industrial production, infrastructure construction, and transportation.

[0003] During the service life of wire ropes, in addition to bearing loads such as tension, bending, and wear, torsional stress is one of the important factors leading to performance degradation and failure. Wire ropes develop inherent torsional stress during the twisting process, and in actual use (such as lifting unevenly loaded objects, uneven winding on the drum, or misaligned guide wheels), additional torsion occurs. These torsional effects gradually lead to fatigue damage, structural deformation (such as "birdcage" loosening), and localized stress concentration in the wires, ultimately potentially causing sudden wire rope breakage and resulting in major safety accidents such as equipment damage and personal injury.

[0004] Therefore, accurately testing the torsional resistance of wire ropes (with the core indicator being "number of torsion cycles") is a crucial step in assessing their quality level, predicting their service life, and ensuring safe use.

[0005] Existing equipment focuses solely on torsional loading and count functions, lacking protective devices to address the potential risk of wire rope breakage during testing. When the wire rope breaks under ultimate stress during torsion testing, the broken wire segments scatter and fly in all directions under residual torsional stress and kinetic energy, reaching speeds of several meters per second. The sharp ends of these fragments pose a significant safety hazard, easily causing cuts, punctures, and other injuries to nearby testing personnel. Therefore, we propose a wire rope torsion count testing device. Utility Model Content

[0006] This invention provides a test device for detecting the number of torsion cycles of steel wire ropes, which solves the problem of the risk of steel wire rope breakage that may occur during the testing process.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: The present invention provides a test device for detecting the number of torsion cycles of a wire rope, including a support base, a workbench fixedly installed at the top of the support base, a testing mechanism provided on the upper surface of the workbench, a sliding opening provided at the top of the support base, and a lifting device provided inside the sliding opening. The lifting device includes a lifting base, which is disposed inside the sliding port. A connecting pipe is fixedly connected to one side of the outer surface of the support base. One end of the connecting pipe is provided with a threaded pipe. An output pipe is provided inside the threaded pipe. An air pump is fixedly connected to one end of the output pipe. An external pipe is fixedly connected to one end of the air pump. A sealing device is provided inside the lifting base.

[0008] Through the above technical solution, a basic installation framework is constructed using a support base, the workbench provides a bearing platform for the testing operation, the testing mechanism realizes the core functions of wire rope torsion loading and count of times, and the sliding port provides movement space for the lifting device. In the lifting device, the air pump transmits air pressure through the external pipe, output pipe, threaded pipe and connecting pipe, driving the lifting seat to rise and fall along the sliding port. Together with the internal sealing device, a closed protective space is formed. The overall structure organically combines the testing function with the safety protection function, solving the problem of the lack of fracture protection in existing equipment and improving the safety of the testing process.

[0009] Furthermore, a limiting plate is fixedly installed on the outer surface of the lower end of the lifting seat, and a limiting groove is opened on the inner surface of the support seat located at the sliding port. The limiting plate is disposed inside the limiting groove and is slidably installed with the support seat.

[0010] Through the above technical solution, the limiting plate slides in the limiting groove, which strictly constrains the movement trajectory of the lifting seat. This not only prevents the lifting seat from radially deviating during the lifting process and ensures its precise alignment with the worktable, but also prevents the lifting seat from detaching from the sliding port, thus ensuring the stability and safety of the lifting device.

[0011] Furthermore, the connecting pipe is connected to the support base, and the outer connecting pipe is connected to the output pipe.

[0012] The above technical solution establishes an airflow path between the air pump and the support base, allowing the air pressure generated by the air pump to enter the support base sequentially through the external pipe, output pipe, threaded pipe, and connecting pipe. The pressure difference between the inside and outside of the support base drives the lifting seat to achieve lifting action, providing a stable power transmission path for the lifting device.

[0013] Furthermore, the threaded pipe is threadedly installed with the connecting pipe and the output pipe.

[0014] Through the above technical solution, the threaded connection method realizes the detachable connection between the connecting pipe and the output pipe, which facilitates the installation, maintenance and component replacement of the equipment; at the same time, the threaded fit has good sealing performance, which can effectively reduce the leakage of airflow during transmission, ensure the efficiency of pneumatic drive, and ensure the sensitivity of the lifting seat operation.

[0015] Furthermore, the capping device includes an airflow channel, which is located at the lower end of the lifting seat. A connection port is provided at the upper end of the inner surface of the lifting seat. A storage seat is provided inside the connection port. A first telescopic seat is provided at one end of the storage seat, and a second telescopic seat is provided at one end of the first telescopic seat.

[0016] The above technical solution constructs a multi-segment telescopic protective structure. The airflow channel can introduce driving airflow, the storage seat provides an installation base for the telescopic components, and the first telescopic seat and the second telescopic seat can extend or retract according to the testing requirements, thereby adjusting the protection range and forming a closed space during testing to block the splashing material after the wire rope breaks.

[0017] Furthermore, the storage seat and the lifting seat are fixedly installed, the storage seat is slidably installed with the first telescopic seat, and the first telescopic seat is slidably installed with the second telescopic seat.

[0018] The above technical solution clarifies the assembly relationship of each component of the capping device. The fixed installation of the storage seat and the lifting seat ensures the stability of the overall structure. The sliding installation method allows the first telescopic seat and the second telescopic seat to extend and retract flexibly, realizing the dynamic adjustment of the protection range and adapting to the testing scenarios of different specifications of wire ropes.

[0019] Furthermore, the airflow groove is connected to the sliding port, the storage seat is connected to the first telescopic seat and the second telescopic seat, and the storage seat is connected to the lifting seat.

[0020] Through the above technical solution, a continuous airflow drive circuit is formed. The air pressure in the sliding port enters the lifting seat through the airflow groove, and then is transmitted to the storage seat, the first telescopic seat and the second telescopic seat through the connecting structure. The air pressure difference drives each telescopic seat to extend or retract, realizing the automatic opening and closing of the protective space and improving the ease of operation.

[0021] Furthermore, the lower surfaces of the storage seat, the first telescopic seat, and the second telescopic seat are all provided with a buffer layer, and the inner surface of the lifting seat is provided with a buffer layer.

[0022] Through the above technical solution, the buffer layer can effectively absorb the kinetic energy of the flying debris when the wire rope breaks, reducing its impact force and penetrating ability. This not only reduces the damage to the device itself caused by the flying debris and extends the service life of the equipment, but also prevents the sharp ends of the wire rope from causing scratches, punctures and other injuries to the operators, significantly improving the safety protection performance of the equipment.

[0023] The above-described solution of this utility model has at least the following beneficial effects: This invention addresses the core problem of existing wire rope torsion testing equipment lacking fracture protection by incorporating a protective structure that combines a lifting device with a capping device. Before testing, an air pump drives the lifting platform to descend to a suitable height along the sliding opening. Simultaneously, airflow drives the first and second telescopic seats of the capping device to extend, forming a closed protective space covering the testing area. When the wire rope breaks due to extreme torsion, the flying wire segments are blocked by the inner wall of the lifting platform and the telescopic seats, and the buffer layer absorbs the kinetic energy of the flying segments, preventing the wire from scratching or piercing workers, significantly reducing personal safety hazards, and filling a technological gap in safety protection during the testing process within the industry.

[0024] This invention, through its integrated pneumatic-driven transmission structure, balances ease of operation and operational stability. On one hand, the air pump, via an external pipe, output pipe, and connecting pipe forming a continuous airflow path, can simultaneously drive the lifting and lowering of the lifting seat and the extension and retraction of the telescopic seat, eliminating the need for multiple additional drive components, thus simplifying the equipment structure and reducing manufacturing costs. On the other hand, the sliding fit between the limiting plate and the limiting groove, along with the sealed connection design of the threaded pipe, ensures precise lifting without deviation and leak-free airflow transmission, guaranteeing the alignment accuracy of the protective structure and the reliability of the drive. This adapts to testing scenarios involving steel wire ropes of different specifications, enhancing the equipment's versatility and practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the lifting seat of this utility model; Figure 4 This is an enlarged view of Part A of this utility model.

[0026] Explanation of reference numerals in the attached figures: 1. Support base; 11. Workbench; 111. Detection mechanism; 12. Sliding port; 13. Limiting groove; 131. Limiting plate; 2. Lifting device; 21. Lifting seat; 22. Connecting pipe; 221. Threaded pipe; 231. Output pipe; 23. Air pump; 232. External pipe; 3. Capping device; 31. Airflow channel; 32. Connection port; 33. Storage seat; 331. First telescopic seat; 332. Second telescopic seat. Detailed Implementation

[0027] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0028] like Figures 1 to 4 As shown, an embodiment of this utility model provides a testing device for detecting the number of torsion cycles of a wire rope, including a support base 1. A workbench 11 is fixedly installed at the top of the support base 1. A testing mechanism 111 is provided on the upper surface of the workbench 11. A sliding opening 12 is provided at the top of the support base 1, and a lifting device 2 is provided inside the sliding opening 12. The lifting device 2 includes a lifting seat 21, which is located inside the sliding opening 12. A connecting pipe 22 is fixedly connected to one side of the outer surface of the support base 1. A threaded pipe 221 is provided at one end of the connecting pipe 22. An output pipe 231 is provided inside the threaded pipe 221. An air pump 23 is fixedly connected to one end of the output pipe 231. An external pipe 232 is fixedly connected to one end of the air pump 23. A sealing device 3 is provided inside the lifting seat 21. A limiting plate 131 is fixedly installed on the outer surface of the lower end of the lifting seat 21. A limiting groove 13 is provided on the inner surface of the support base 1 located at the sliding opening 12. The limiting plate 131 is located inside the limiting groove 13 and is slidably installed with the support base 1. Connecting pipe 22 is connected to support base 1, and external pipe 232 is connected to output pipe 231. Threaded pipe 221 is threadedly installed on both connecting pipe 22 and output pipe 231.

[0029] In this embodiment of the utility model, the air pump 23 provides air pressure power for the lifting device 2, and the external pipe 232 is used to introduce an external air source. The airflow enters the support base 1 through the output pipe 231, the threaded pipe 221 and the connecting pipe 22. The pressure difference between the inside and outside of the support base 1 drives the lifting base 21 to achieve lifting. The threaded connection design of the threaded pipe 221, the connecting pipe 22 and the output pipe 231 not only facilitates the disassembly and maintenance of each pipe, but also improves the sealing of the airflow transmission, reduces air pressure leakage, ensures driving efficiency, and ensures that the lifting base 21 can be quickly adjusted to the target position according to the detection requirements.

[0030] like Figures 1 to 4As shown, the capping device 3 includes an airflow channel 31 located at the lower end of the lifting seat 21. A connection port 32 is located at the upper end of the inner surface of the lifting seat 21. A storage seat 33 is located inside the connection port 32. A first telescopic seat 331 is located at one end of the storage seat 33, and a second telescopic seat 332 is located at the other end of the first telescopic seat 331. The storage seat 33 is fixedly installed with the lifting seat 21, and is slidably installed with both the first and second telescopic seats 331 and 332. The airflow channel 31 communicates with the sliding port 12, and the storage seat 33 communicates with both the first and second telescopic seats 331 and 332, as well as with the lifting seat 21. A buffer layer is provided on the lower surfaces of the storage seat 33, the first telescopic seat 331, and the second telescopic seat 332, and a buffer layer is also provided on the inner surface of the lifting seat 21.

[0031] In this embodiment of the invention, the capping device 3, as a core protective component, works in conjunction with the lifting device 2 to form a closed protective space, specifically addressing the potential hazard of wire rope breakage and splashing. The airflow channel 31, as a key channel for airflow transmission, introduces the air pressure from the sliding port 12 into the lifting seat 21. Through the connection between the lifting seat 21 and the storage seat 33, the air pressure is transmitted to the first telescopic seat 331 and the second telescopic seat 332. The pressure difference drives the two telescopic seats to extend or retract along the storage seat 33. During testing, the telescopic seats can extend to cover the area above the testing area, and after testing, they retract into the storage seat 33. This does not affect the clamping and removal of the wire rope and can flexibly adapt to the protection requirements of wire ropes of different lengths and specifications.

[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A wire rope kink count test apparatus, characterized by, Includes a support base (1), a workbench (11) is fixedly installed at the top inside the support base (1), a detection mechanism (111) is provided on the upper surface of the workbench (11), a sliding opening (12) is opened at the top of the support base (1), and a lifting device (2) is provided inside the sliding opening (12). The lifting device (2) includes a lifting seat (21), which is located inside the sliding port (12). A connecting pipe (22) is fixedly connected to one side of the outer surface of the support seat (1). A threaded pipe (221) is provided at one end of the connecting pipe (22). An output pipe (231) is provided inside the threaded pipe (221). An air pump (23) is fixedly connected to one end of the output pipe (231). An external pipe (232) is fixedly connected to one end of the air pump (23). A sealing device (3) is provided inside the lifting seat (21).

2. The steel wire rope twist count test device of claim 1, wherein, A limiting plate (131) is fixedly installed on the outer surface of the lower end of the lifting seat (21). A limiting groove (13) is opened on the inner surface of the sliding port (12) of the support seat (1). The limiting plate (131) is set inside the limiting groove (13) and is slidably installed with the support seat (1).

3. The steel wire rope twist count test device of claim 1, wherein, The connecting pipe (22) is connected to the support base (1), and the outer pipe (232) is connected to the output pipe (231).

4. The wire rope twist count test device of claim 1, wherein, The threaded pipe (221), connecting pipe (22), and output pipe (231) are all threaded.

5. The steel wire rope twist count test device of claim 1, wherein, The capping device (3) includes an airflow channel (31), which is located at the lower end of the lifting seat (21). The upper end of the inner surface of the lifting seat (21) is provided with a connection port (32). A storage seat (33) is provided inside the connection port (32). A first telescopic seat (331) is provided at one end of the storage seat (33), and a second telescopic seat (332) is provided at one end of the first telescopic seat (331).

6. The test apparatus for detecting the number of torsion cycles of a wire rope according to claim 5, characterized in that, The storage seat (33) is fixedly installed with the lifting seat (21), the storage seat (33) is slidably installed with the first telescopic seat (331), and the first telescopic seat (331) is slidably installed with the second telescopic seat (332).

7. The steel wire rope twist count test device of claim 5, wherein, The airflow groove (31) is connected to the sliding port (12), the storage seat (33) is connected to the first telescopic seat (331) and the second telescopic seat (332), and the storage seat (33) is connected to the lifting seat (21).

8. The steel wire rope twist count test device of claim 5, wherein, The lower surfaces of the storage seat (33), the first telescopic seat (331), and the second telescopic seat (332) are all provided with a buffer layer, and the inner surface of the lifting seat (21) is provided with a buffer layer.

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