Loading device adopting flexible cable

Abstract

The utility model relates to a loading device for engineering equipment, in particular to a loading device adopting a flexible cable, which comprises a support, a loading device is arranged at one end of the upper surface of the support, the loading device is connected with a clamping device through the flexible cable, and the clamping device is arranged on the upper surface of the support. A guide device is arranged on the support, and the flexible cable is clamped on the guide device; therefore, the utility model provides the loading device which is high in flexibility and good in universality and adaptability so as to meet the test requirements of engineering equipment of different types and different scales and adopts the flexible cable.

Description

Technical Field

[0001] This utility model relates to a loading device for engineering equipment, and more particularly to a loading device using a flexible cable. Background Technology

[0002] Before engineering equipment is put into actual use, it needs to undergo various tests to ensure its performance, reliability, and safety. For example, engines and gearboxes in mechanical engineering, and bridge structures and building components in civil engineering, all need to be tested to verify whether they meet design requirements and relevant standards. During the testing process, loading devices are used to simulate various loads that engineering equipment will bear during actual operation, including static loads, dynamic loads, and alternating loads. By accurately applying these loads, the performance of the equipment under different working conditions can be evaluated. For some equipment subjected to cyclic loads, the loading device needs to be able to apply alternating loads at specific frequencies and amplitudes to accelerate the fatigue process of the equipment and evaluate the fatigue life of the equipment in a short period of time.

[0003] However, existing loading devices are usually designed for specific types of equipment or load forms, making it difficult to adapt to the testing needs of various types of engineering equipment. In other words, they have poor versatility and flexibility, and the testing process is relatively cumbersome, requiring a lot of manual intervention. This is not only inefficient, but also prone to introducing human error. It is also not conducive to long-term, large-scale testing. When loading tests need to be carried out under high-speed motion, the loading device may fail due to insufficient capacity, which will affect the test results and even pose a personal threat to on-site operators, causing dangerous situations such as injury. Utility Model Content

[0004] In view of this, the present invention provides a loading device using a flexible cable; the purpose is to provide a loading device using a flexible cable that is highly flexible, has good versatility and adaptability, and can meet the testing needs of engineering equipment of different types and scales.

[0005] This utility model provides a loading device using a flexible cable, including a bracket. A loading device is provided at one end of the upper surface of the bracket. The loading device is connected to a clamping device via a flexible cable. Both ends of the flexible cable are provided with annular sleeves. A loading object is engaged inside the clamping device. A guide device is provided on the bracket. The guide device is located between the loading device and the clamping device. The flexible cable is engaged on the guide device.

[0006] Furthermore, the flexible cable is connected to the corresponding loading device and clamping device respectively through the annular sleeve.

[0007] Furthermore, the guiding device includes at least one steering pulley, and a groove is formed on the circumferential surface of the steering pulley. The flexible cable is engaged and limited in the groove, and the flexible cable and the loading device achieve linear movement through the arrangement of the steering pulley.

[0008] Furthermore, the loading device includes a loading cylinder, and the bracket is provided with a limit guide rail corresponding to the position of the piston rod of the loading cylinder. The piston rod moves in a straight line along the movement trajectory of the limit guide rail. A control device is also provided corresponding to the loading cylinder.

[0009] Furthermore, the limiting guide rail includes a tooling, one end of which is connected to the piston rod, and the other end of which is connected to the flexible cable through the annular sleeve. At least two guide limiting wheels are provided on both sides of the tooling. Two upper rails are provided on the bracket above the guide limiting wheels, and two lower rails are provided on the bracket below the guide limiting wheels. The two guide limiting wheels are respectively engaged and limited between the corresponding upper rails and lower rails.

[0010] Furthermore, the limiting guide rail includes a second fixture, one end of which is provided with a fixed pulley. The second fixture is connected to the flexible cable through the fixed pulley. The other end of the second fixture is connected to the piston rod. A guide plate is provided on the bottom surface of the second fixture. The length of the guide plate is greater than the diameter of the second fixture. Two linear guide rails are arranged parallel to each other on the bracket corresponding to the guide plate. The two ends of the guide plate are respectively engaged and limited on the corresponding linear guide rails to achieve linear movement.

[0011] Furthermore, the guiding device includes a first pulley group, a second pulley group, and a third pulley group. The first pulley group includes two pulleys arranged relatively parallel to each other. The second pulley group and the third pulley group have the same structure as the first pulley group. The second pulley group is arranged relatively vertically above the first pulley group and is connected to the bracket through a tensioning screw. The third pulley group is arranged relatively parallel to the second pulley group. The flexible cable is sequentially wrapped around the third pulley group, the second pulley group, and the first pulley group. The flexible cable is connected to the loading device through the limiting guide rail, and the beginning and end of the flexible cable are connected to the clamping device.

[0012] Furthermore, a buffer device is provided on the bracket at the position corresponding to the loading device. The buffer device includes an anti-collision pad disposed above the piston rod and a buffer disposed on the bracket at the position corresponding to the anti-collision pad. The buffer includes a mounting post, and a spring is disposed inside the mounting post. The end of the spring contacts the anti-collision pad.

[0013] Furthermore, the flexible cable is made of a flexible material.

[0014] Furthermore, the clamping device includes at least two arc-shaped clamping plates, each of which is connected to the corresponding annular sleeve by high-strength bolts.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model adopts a combination of a support, a loading device, a flexible cable, and a clamping device, which solves the problems of poor versatility and flexibility of existing loading devices, as well as the cumbersome operation process. It also solves the problem that when loading tests need to be performed under high-speed motion, the loading device may fail due to insufficient capacity, thus affecting the test results and even posing a personal threat to on-site operators. In use, the loading device (i.e., a hydraulic cylinder or electric cylinder) is installed at one end of the support, or alternatively, at a position on the support near the loading device depending on the actual application. An accumulator is installed, which can be used in conjunction with a loading device. A limiting guide rail is installed on a bracket in front of the loading device (i.e., a hydraulic cylinder or an electric cylinder). One end of the limiting guide rail is connected to the piston rod (i.e., the piston rod of the hydraulic cylinder or electric cylinder) (shown as a hinge in the figure, but the connection method includes, but is not limited to, a hinge). The other end of the limiting guide rail is connected to the annular sleeve at the beginning of the flexible cable (as shown in the figure, the annular sleeve at the beginning of the flexible cable is fitted onto the other end of the limiting guide rail). The end of the flexible cable passes through a guide device (i.e., a steering pulley) and is connected to a clamping device, enabling dynamic loading. The direction of the load is basically equivalent to the tangent of the pitch circle of the steering pulley, rather than the direction preset in the loading experiment. That is, the motion trajectory is converted into linear motion. When performing dynamic loading tests, especially when the direction of motion differs greatly from the direction of the loading force, the motion trajectory of the loading test can be converted into linear motion through the flexible cable and the guiding device. The clamping device consists of two arc-shaped clamping plates, which are connected to each other by high-strength bolts. The loading object is placed between the two clamping plates. At the same time, the annular sleeve at the end of the flexible cable is fitted onto the high-strength bolts to connect the loading object to the loading device for subsequent loading tests. During the loading test, the loading device is fixed on a relatively flat plane (it can be fixed in any known way). Since the loading object is connected to the loading device through the clamping device, the subsequent loading test can be performed on the loading object as required. This improves the high flexibility of this utility model, enabling it to better adapt to the testing needs of various types of engineering equipment, and improves its versatility and adaptability, so that it can meet the testing needs of different types and scales of engineering equipment.

[0017] 2. This utility model uses a flexible cable with an annular sleeve to connect to the corresponding loading device and clamping device. Because the flexible cable is made of a flexible material, it has the following advantages compared to other connection methods: 1. The flexible cable can be bent according to actual conditions (i.e., when the loading device and the object being loaded are not on the same axis, the flexible cable needs to change direction or angle via a steering pulley). Furthermore, due to the inherent properties of the flexible material, the cable itself does not occupy excessive space in the loading device, improving the flexibility of this utility model; 2. Because the flexible cable is lightweight, it has less impact on the loading test, relatively improving the accuracy of the loading test and the testing precision of this utility model. This indirectly improves the versatility and adaptability of this utility model, enabling it to meet the testing needs of different types and scales of engineering equipment.

[0018] 3. This utility model, through the combination of a guiding device and a flexible cable, ensures that the direction of the dynamic loading force during loading tests is essentially equal to the tangent direction of the pitch circle of the steering pulley. Especially during dynamic loading tests, particularly when the direction of motion differs significantly from the direction of the loading force, the flexible cable and guiding device convert the loading test trajectory into linear motion. This ensures that the piston rod limiting guide rail of the loading cylinder moves in a straight line, preventing deformation of the piston rod due to radial force or affecting the accuracy of the loading test results. This effectively extends the service life of this utility model, reduces its operating costs, improves its testing accuracy, and enhances its adaptability, enabling it to meet the testing needs of different types and scales of engineering equipment.

[0019] 4. By combining a loading cylinder and a limiting guide rail, this utility model enables the piston rod of the loading cylinder to move linearly along the trajectory of the limiting guide rail. This ensures that the piston rod is not subjected to radial force, effectively extending the service life of the piston rod while ensuring normal loading testing. This also extends the service life of the utility model, reduces the frequency of maintenance and repair, thereby lowering the cost of use and improving the testing accuracy. This allows the utility model to meet the testing needs of different types and scales of engineering equipment.

[0020] 5. This utility model, through the arrangement of tooling one, guide limiting wheels, two upper rails and two lower rails, enables the guide limiting wheels on both sides of tooling one to engage and limit between the corresponding upper and lower rails, allowing the piston rod to move linearly along the movement trajectory of the limiting guide rails. This ensures that the piston rod is not affected by radial force, effectively extending the service life of the piston rod while ensuring normal load testing. This also effectively extends the service life of this utility model, reduces the frequency of maintenance and repair, and thus lowers the cost of using this utility model.

[0021] 6. This utility model, through the combined arrangement of tooling two, fixed pulley, directional plate and two linear guide rails, ensures that the two ends of the directional plate on the bottom surface of tooling two are respectively engaged and limited on the corresponding linear guide rails, so that the piston rod can move linearly along the movement trajectory of the limiting guide rails. This ensures that the piston rod is not affected by radial force, effectively extending the service life of the piston rod while ensuring that the loading test can be carried out normally. This also effectively extends the service life of this utility model, reduces the frequency of maintenance and repair, and thus reduces the cost of using this utility model.

[0022] 7. This utility model, through a guiding device composed of a first pulley group, a second pulley group, a third pulley group, and a tensioning screw, allows for adjustment of the position of the second pulley group (i.e., adjusting the length of the flexible rope) by adjusting the position of the tensioning screw during use. This improves the flexibility of the utility model, relatively improves the accuracy of load testing, enhances the testing precision, and increases the versatility and adaptability of the utility model, enabling it to meet the testing needs of different types and scales of engineering equipment.

[0023] 8. By setting a buffer device on the support corresponding to the loading device, this utility model can protect the piston rod by using anti-collision pads and buffers when the loading test ends (i.e., when the movement ends). That is, the anti-collision pads will contact the buffers to protect the piston rod, preventing the piston rod from being damaged by impact, effectively extending the service life of the piston rod, effectively extending the service life of this utility model, and reducing the use cost of this utility model.

[0024] 9. This utility model uses a clamping device composed of two arc-shaped clamping plates, which can clamp the loaded object in the clamping device. This makes the utility model applicable to the testing needs of different types and scales of engineering equipment, improving the flexibility, adaptability and practicality of the utility model. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the front side view of the loading test structure of the first embodiment of this utility model;

[0027] Figure 3 This is a schematic diagram of the novel loading test rear side view structure according to the first embodiment of this utility model;

[0028] Figure 4 for Figure 1A magnified structural diagram of A in the diagram;

[0029] Figure 5 for Figure 1 A magnified structural diagram of B in the diagram;

[0030] Figure 6 This is a schematic diagram of the overall structure of tooling one according to the first embodiment of this utility model;

[0031] Figure 7 This is a schematic diagram of the overall structure of the second embodiment of the present utility model;

[0032] Figure 8 This is a side-view perspective structural diagram of the second embodiment of the present invention;

[0033] Figure 9 for Figure 7 A magnified structural diagram of C in the middle;

[0034] Figure 10 for Figure 7 A magnified structural diagram of D in the diagram.

[0035] Reference numerals: 1. Bracket, 2. Flexible cable, 3. Annular sleeve, 4. Loading object, 5. Steering pulley, 6. Groove, 7. Hydraulic cylinder, 8. Piston rod, 9. Tooling one, 10. Guide limit wheel, 11. Upper rail, 12. Lower rail, 13. Tooling two, 14. Fixed pulley, 15. Orientation plate, 16. Linear guide rail, 17. First pulley block, 18. Second pulley block, 19. Third pulley block, 20. Tensioning screw, 21. Anti-collision pad, 22. Buffer, 23. Mounting column, 24. Spring, 25. Semi-circular clamp, 26. High-strength bolt, 27. Accumulator, 28. Servo valve, 29. Valve block, 30. Protective cover, 31. Support. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 utility model 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 utility model.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] First Embodiment

[0040] like Figure 1 , Figure 7 As shown, this utility model provides a loading device using a flexible cable, including a bracket 1. A loading device is provided at one end of the upper surface of the bracket 1. The loading device is connected to a clamping device through a flexible cable 2. Both ends of the flexible cable 2 are provided with annular sleeves 3. A loading object 4 is clamped inside the clamping device. A guide device is provided on the bracket 1. The guide device is located between the loading device and the clamping device. The flexible cable 2 is clamped on the guide device.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the flexible cable 2 is connected to the corresponding loading device and clamping device respectively through the annular sleeve 3, and the clamping device and the annular sleeve 3 are connected to each other by high-strength bolts 26 (as shown). Figure 5 The connection method shown can also be any other known connection method.

[0042] like Figure 1 As shown, the guiding device includes at least one steering pulley 5, which makes the direction of the dynamic loading force basically equal to the tangent direction of the pitch circle of the steering pulley 5, rather than the direction preset in the loading test. This can convert the motion trajectory into linear motion. A groove 6 is formed on the circumferential surface of the steering pulley 5, and the flexible cable 2 is engaged and limited in the groove 6. The flexible cable 2 and the loading device achieve linear motion through the setting of the steering pulley 5. When performing dynamic loading tests, especially when the motion direction and the loading force direction are significantly different, the motion trajectory of the loading test can be converted into linear motion through the flexible cable 2 and the guiding device.

[0043] like Figure 1 , Figure 7As shown, the loading device includes a loading cylinder, which can be any type of loading cylinder with suitable performance and size available on the market, such as a hydraulic cylinder 7 or an electric cylinder. The bracket 1 is provided with a limit guide rail corresponding to the position of the piston rod 8 of the loading cylinder. The piston rod 8 of the loading cylinder moves linearly through the movement trajectory of the limit guide rail, ensuring that the piston rod 8 is not subjected to radial force. This effectively extends the service life of the piston rod 8 while ensuring that the loading test is carried out normally. A control device is also provided corresponding to the loading cylinder. The control device includes, but is not limited to, a valve block 29, a servo valve 28, and other control devices that are matched with the loading device for controlling the loading device. An accumulator 27 can also be selectively provided according to the actual use situation. The accumulator 27 works in conjunction with the loading device.

[0044] like Figure 6 As shown, the limiting guide rail includes fixture 9. One end of fixture 9 is connected to the piston rod 8 of the loading cylinder, and the other end of fixture 9 is connected to the flexible cable 2 through an annular sleeve 3. At least two guide limiting wheels 10 are provided on both sides of fixture 9 (four guide limiting wheels 10 are shown in the figure). Two upper rails 11 are provided on the bracket 1 above the guide limiting wheels, and two lower rails 12 are provided on the bracket 1 below the guide limiting wheels. The two guide limiting wheels are respectively engaged and limited between the corresponding upper rails 11 and lower rails 12.

[0045] like Figure 1 As shown, a buffer device is provided on the bracket 1 at the position corresponding to the loading device. The buffer device includes an anti-collision pad 21 located above the piston rod 8 and a buffer 22 located on the bracket 1 at the position corresponding to the anti-collision pad 21. The buffer 22 includes a mounting post 23, and a spring 24 is provided inside the mounting post 23. The end of the spring 24 is in contact with the anti-collision pad 21.

[0046] like Figure 1 , Figure 7 As shown, the flexible cable 2 is made of a flexible material. This flexible material can be made of metal, such as steel wire or iron wire, or, depending on the actual application, of non-metallic materials, such as polyethylene or nylon. Because the flexible cable 2 is made of a flexible material, it has the following advantages over rigid connections such as connecting rods during testing: 1. The flexible cable 2 can be bent according to the actual situation (i.e., when the installed device and the loading object 4 are not on the same axis, the flexible cable 2 needs to change direction or angle through the steering pulley 5). At the same time, due to the inherent characteristics of the flexible material, the flexible cable 2 does not occupy too much space in the loading device; 2. Because the flexible cable 2 is relatively lightweight, it has less impact on the loading test, relatively improving the accuracy of the loading test and the testing precision of the loading device.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 10 As shown, the clamping device includes at least two arc-shaped clamping plates. Both clamping plates are connected to the corresponding annular sleeves 3 by high-strength bolts 26. The clamping plates can be different clamping plates selected according to the actual use, such as a semi-circular clamp 25 or a support 31.

[0048] like Figure 1 As shown, a protective cover 30 can also be installed on the outside of the guide device, and the protective cover 30 is fastened and installed on the guide device.

[0049] Second Embodiment

[0050] The loading device using a flexible cable in this embodiment is an improvement on the first embodiment. The technical content disclosed in the first embodiment will not be described again, and the content disclosed in the first embodiment also belongs to the content disclosed in this embodiment.

[0051] like Figure 7 , Figure 8 As shown, the bracket 1 includes a first horizontal bracket, a second horizontal bracket, and a vertical bracket. The first horizontal bracket has a vertical bracket at the end away from the loading device. The vertical bracket has an inverted U-shaped structure, and the second horizontal bracket is provided in the upper middle part of the vertical bracket. The second horizontal bracket is relatively parallel to the first horizontal bracket.

[0052] like Figure 9 As shown, the limiting guide rail includes a second tool 13. One end of the second tool 13 is provided with a fixed pulley 14. The second tool 13 is connected to the flexible cable 2 through the fixed pulley 14 (the flexible cable 2 is sleeved on the fixed pulley 14). The other end of the second tool 13 is connected to the piston rod 8 of the loading cylinder. A guide plate 15 is provided on the bottom surface of the second tool 13. The length of the guide plate 15 is greater than the diameter of the second tool 13. Two linear guide rails 16 are arranged parallel to each other on the bracket 1 corresponding to the guide plate 15. The two ends of the guide plate 15 are respectively limited by engaging on the corresponding linear guide rail 16 to achieve linear movement.

[0053] like Figure 7 , Figure 8 As shown, the guiding device includes a first pulley group 17, a second pulley group 18, and a third pulley group 19. The first pulley group 17 includes two pulleys arranged relatively parallel to each other. The second pulley group 18 and the third pulley group 19 have the same structure as the first pulley group 17. The second pulley group 18 is arranged relatively vertically above the first pulley group 17 and is connected to the bracket 1 via a tensioning screw 20. The third pulley group 19 is arranged relatively parallel to the second pulley group 18. The flexible cable 2 is sequentially wrapped around the third pulley group 19, the second pulley group 18, and the first pulley group 17 (e.g., ...). Figure 7As shown, the end of the flexible cable 2 passes through the pulleys on the same side of the third pulley group 19, the second pulley group 18, and the first pulley group 17 in sequence, and then passes through the pulleys on the other side of the first pulley group 17, the second pulley group 18, and the third pulley group 19 in sequence, and then comes close to the beginning of the flexible cable 2. The beginning and end of the flexible cable 2 are connected to the two ends of the clamping device by high-strength bolts 26 respectively. The flexible cable 2 is connected to the loading device through the limiting guide rail (the limiting guide rail includes tooling 2 13), and the end of the flexible cable 2 is connected to the clamping device.

[0054] The specific working principle is as follows:

[0055] Example 1

[0056] In use, the loading device (i.e., a hydraulic cylinder or an electric cylinder) is installed at one end of the bracket. An accumulator, control device, etc., can also be selectively installed on the bracket near the loading device, depending on the actual usage. The accumulator can work in conjunction with the loading device, and the control device controls the operation of the loading device. A limiting guide rail (including fixture one) is installed on the bracket in front of the loading device (i.e., the hydraulic cylinder or electric cylinder). The limiting guide rail is connected to the piston rod (i.e., the piston rod of the hydraulic cylinder or electric cylinder) through fixture one (shown as a hinge in the figure, but the connection method includes, but is not limited to, a hinge). The end of fixture one opposite to the piston rod is connected to the annular sleeve at the beginning of the flexible cable (as shown in the figure, the annular sleeve is fitted onto fixture one). The end of the flexible cable passes through the guide device (i.e., the steering pulley) and is connected to the clamping device, so that the direction of the dynamic loading force is basically equal to that of the guide rail. The direction of the pitch circle tangent of the steering pulley, rather than the direction preset in the loading experiment, can convert the motion trajectory into linear motion. Especially when performing dynamic loading tests, particularly when the direction of motion differs significantly from the direction of the loading force, the flexible cable and guide device can convert the motion trajectory of the loading test into linear motion. The aforementioned clamping device consists of two arc-shaped clamping plates connected to each other by high-strength bolts. A loading object is placed between the two clamping plates. The annular sleeve at the end of the flexible cable is fitted onto the high-strength bolts, connecting the loading object to the loading device for subsequent loading tests. During the loading test, the loading device is fixedly placed on a relatively flat plane (it can be fixed in any known way). Since the loading object is already connected to the loading device through the clamping device, the subsequent loading test can be performed on the loading object as required.

[0057] Example 2

[0058] In use, the bracket of Embodiment 2 includes a first horizontal bracket, a second horizontal bracket, and a vertical bracket. First, the loading device (i.e., a hydraulic cylinder or an electric cylinder) is installed at one end of the first horizontal bracket. An external accumulator, control device, etc., can also be used in conjunction with the loading device. The accumulator can work in conjunction with the loading device and control the operation of the loading device through the control device. A limiting guide rail (including tooling two) is installed on the bracket in front of the loading device (i.e., the hydraulic cylinder or electric cylinder). One end of tooling two is connected to the piston rod (i.e., the piston rod of the hydraulic cylinder or electric cylinder), and the other end of tooling two is connected to a fixed pulley. A flexible rope is fitted onto the fixed pulley. A first pulley group (including two pulleys) is set at the other end of the bracket. A vertical bracket extends upward from the end of the bracket, outside the first pulley group. The vertical bracket has an inverted U-shaped structure. A second horizontal bracket is set in the upper middle part of the vertical bracket. A position on one end of the second horizontal bracket, opposite to the first pulley group... A second pulley group (including two pulleys) is set up via a tension screw. In actual use, the operator can adjust the position of the second pulley group by rotating the tension screw (i.e., adjust the length of the flexible cable). A third pulley group (including two pulleys) is set up at the other end of the second transverse support. One end of the flexible cable passes sequentially through the third pulley group, the second pulley group, and the pulley on the same side of the first pulley group, then sequentially through the fixed pulley, the first pulley group, the second pulley group, and the pulley on the other side of the third pulley group, before coming into close contact with the other end of the flexible cable. It is then connected to both ends of the clamping device by high-strength bolts. The clamping device holds the load object, thus connecting the load object to the loading device for subsequent loading tests. During the loading test, the loading device is fixedly placed on a relatively flat surface (it can be fixed in any known way). Since the load object is already connected to the loading device via the clamping device, the subsequent loading test can be performed on the load object as required.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A loading device employing a flexible cable, characterized in that: The device includes a support frame, with a loading device at one end of its upper surface. The loading device is connected to a clamping device via a flexible cable. Both ends of the flexible cable are provided with annular sleeves. A loading object is engaged within the clamping device. A guide device is provided on the support frame, located between the loading device and the clamping device. The flexible cable is engaged with the guide device. The loading device includes a loading cylinder, and the bracket is provided with a limit guide rail corresponding to the position of the piston rod of the loading cylinder. The piston rod moves in a straight line along the movement trajectory of the limit guide rail. A control device is also provided corresponding to the loading cylinder.

2. The loading device using a flexible cable according to claim 1, characterized in that: The flexible cable is connected to the corresponding loading device and clamping device respectively through the annular sleeve.

3. The loading device using a flexible cable according to claim 1, characterized in that: The guiding device includes at least one steering pulley, and a groove is formed on the circumferential surface of the steering pulley. The flexible cable is engaged and limited in the groove, and the flexible cable and the loading device achieve linear movement through the arrangement of the steering pulley.

4. The loading device using a flexible cable according to claim 1, characterized in that: The limiting guide rail includes a tooling one, one end of which is connected to the piston rod, and the other end of which is connected to the flexible cable through the annular sleeve. At least two guide limiting wheels are provided on both sides of the tooling one. Two upper rails are provided on the bracket above the guide limiting wheels, and two lower rails are provided on the bracket below the guide limiting wheels. The two guide limiting wheels are respectively engaged and limited between the corresponding upper rails and lower rails.

5. The loading device using a flexible cable according to claim 1, characterized in that: The limiting guide rail includes a second fixture, one end of which is provided with a fixed pulley. The second fixture is connected to the flexible cable through the fixed pulley. The other end of the second fixture is connected to the piston rod. A guide plate is provided on the bottom surface of the second fixture. The length of the guide plate is greater than the diameter of the second fixture. Two linear guide rails are arranged parallel to each other on the bracket corresponding to the guide plate. The two ends of the guide plate are respectively engaged and limited on the corresponding linear guide rails to achieve linear movement.

6. The loading device employing a flexible cable according to claim 1, characterized in that: The guiding device includes a first pulley group, a second pulley group, and a third pulley group. The first pulley group includes two pulleys arranged in parallel. The second and third pulley groups have the same structure as the first pulley group. The second pulley group is arranged perpendicularly above the first pulley group and is connected to the bracket through a tensioning screw. The third pulley group is arranged parallel to the second pulley group. The flexible cable is sequentially wrapped around the third pulley group, the second pulley group, and the first pulley group. The flexible cable is connected to the loading device through the limiting guide rail, and the beginning and end of the flexible cable are connected to the clamping device.

7. A loading device employing a flexible cable according to claim 1, characterized in that: A buffer device is provided on the bracket corresponding to the position of the loading device. The buffer device includes an anti-collision pad disposed above the piston rod and a buffer disposed on the bracket corresponding to the position of the anti-collision pad. The buffer includes a mounting post, and a spring is disposed inside the mounting post. The end of the spring contacts the anti-collision pad.

8. A loading device employing a flexible cable according to claim 1, characterized in that: The flexible cable is made of a flexible material.

9. A loading device employing a flexible cable according to claim 1, characterized in that: The clamping device includes at least two arc-shaped clamping plates, each of which is connected to the corresponding annular sleeve by high-strength bolts.

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