A subway cable support limiting strength simulation detection equipment

Abstract

The application discloses a subway cable support limiting strength simulation detection equipment and relates to the technical field of detection. The equipment comprises a box body, a detection window is arranged on one lateral side of the box body, an upright stand is arranged inside the box body, a sliding seat for bearing a cable support is slidably connected to the upright stand, a vertical load assembly and a horizontal load assembly are further arranged, the vertical load assembly is arranged on one side of the upright stand and can exert a vertical pulling force on a support frame of the cable support, and the horizontal load assembly is arranged on the upright stand, cooperates with a limiting structure of the cable support and exerts a horizontal pushing force. The equipment has the beneficial effects that the installed cable support is lifted through the sliding seat, the cable support is automatically cooperated with the vertical and horizontal load assemblies, the assembly and the cable support are conveniently assembled, the two load assemblies can be adjusted to load the cable support at any time, convenient adjustment of the simulated detection load is realized, the load position is controlled by means of rigid connection, and different detection conditions are met.

Description

Technical Field

[0001] This invention relates to the field of testing technology, specifically to a subway cable bracket limit strength simulation testing device. Background Technology

[0002] In subway power systems, cable supports are key components for supporting and fixing cables. The rationality of their structural design and the strength of their limiting support for cables directly affect the safety and stability of cable laying.

[0003] In related technologies, to facilitate the strength testing of cable supports, for example, patent CN215910270U provides an adjustable strength testing device for testing the strength of cable supports. This device installs and fixes the cable support on a mounting frame. The up-and-down movement of the lifting mechanism causes the hanging rope on the counterweight to be hung on the hanging arm of the cable support. By lifting the cable support upward, the hanging arm of the cable support is tested by the gravity of the counterweight. This eliminates the need for manual lifting of the counterweight and hanging it on the hanging arm of the cable support, greatly reduces the manual labor intensity, and significantly improves testing efficiency and safety performance.

[0004] Although the existing technical solutions mentioned above can achieve the effect of quickly loading the load onto the cable support by hanging the counterweight's rope onto the support arm and then using a lifting mechanism, the mass of the counterweight is usually fixed. If the test load needs to be changed, weights need to be added or removed. Furthermore, after the lifting mechanism lifts the counterweight, the counterweight will swing depending on the position of the rope. This swinging motion will change the test load, resulting in inaccurate strength testing of the support structure. Summary of the Invention

[0005] To address one of the shortcomings of existing technologies, this invention provides a subway cable support limit strength simulation testing device, which solves the problem that the inconvenience of adjusting and controlling the support test load affects the accuracy of strength testing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a subway cable bracket limit strength simulation testing device, comprising:

[0007] The enclosure has a detection window on one side, and a support frame is installed inside the enclosure. A slide block for supporting the cable bracket is slidably connected to the support frame.

[0008] A vertical load assembly, located on one side of the support frame, can apply a vertical tensile force to the support frame in the cable tray;

[0009] The horizontal load assembly, mounted on the upright, works in conjunction with the limiting structure in the cable bracket to apply a horizontal thrust to the limiting structure.

[0010] Preferably, the interior of the housing is further provided with:

[0011] The base is located at the bottom of the box body;

[0012] A base plate is disposed above the base, and the bottom end of the upright frame is fixedly connected to the upper side of the base plate;

[0013] An elastic support is disposed between the lower side of the base plate and the upper side of the base.

[0014] The vibration motor, linked to the base plate, can cause the base plate to vibrate.

[0015] Preferably, several uprights are arranged side by side on the base plate, and one vertical load component and one horizontal load component are respectively provided for each upright.

[0016] Preferably, the slide has an insertion hole; the housing further includes:

[0017] A lifting drive component is mounted on the upright frame, and the lifting drive component is linked with the slide block, which can drive the slide block to rise or fall.

[0018] A connector frame, one side of which is provided with a pin corresponding to the socket;

[0019] The socket and pin correspond to the mounting bracket of the cable support to be tested.

[0020] Preferably, the vertical load assembly includes:

[0021] The first mounting bracket is fixedly mounted on the base plate and located on the bottom horizontal side of the upright frame;

[0022] The support is mounted on the first mounting bracket;

[0023] A pull-down drive component is mounted on the support.

[0024] The pull-down component is linked with the pull-down drive component, which can drive the pull-down component to move vertically.

[0025] Preferably, the vertical load assembly further includes:

[0026] The U-shaped frame is linked to the movable end of the pull-down drive component; the pull-down component and the U-shaped frame are vertically slidably connected.

[0027] Preferably, the movable end of the pull-down drive extends through the bottom of the U-shaped frame, and the vertical load assembly further includes:

[0028] The pressure block is connected to the movable end of the pull-down drive component. A pressure sensor A is fixedly installed at the bottom of the pressure block, and the pressure sensor A is located on the upper side of the bottom of the U-shaped frame.

[0029] Preferably, the support and the first mounting bracket are slidably connected, and the sliding direction is horizontal. The vertical load assembly further includes:

[0030] The first translation drive is mounted on the first mounting bracket. The first translation drive is linked with the support and can drive the support to slide.

[0031] Preferably, the horizontal load component includes:

[0032] The second translation drive is connected to the upright frame and is located above the slide block;

[0033] The pushing component is linked with the second translational driving component, and the second translational driving component can drive the pushing component to move in the horizontal direction;

[0034] A push block is disposed on the side of the pusher away from the support frame; the push block can apply a horizontal thrust to the limiting structure at the end of the cable bracket support frame to detect the bending strength of the limiting structure.

[0035] Preferably, the horizontal load component further includes:

[0036] The insert plate is rotatably mounted at the bottom of the pusher; the insert plate corresponds to the limiting groove of the upper limit structure of the cable bracket, and the insert plate can be inserted into the limiting groove; the second translation drive can drive the insert plate to move, and the connection strength between the limiting structure and the support frame can be detected.

[0037] Preferably, the insert plate is rotatably connected to the pusher via a rotating shaft. The bottom of the insert plate has an arc-shaped structure, and the center of the arc-shaped structure is eccentrically connected to the rotating shaft. The rotating shaft is located on the side of the pusher that is close to the opening of the limiting structure, and is used to drive the insert plate to rotate away from the opening of the limiting structure. When the insert plate moves away from the support frame above, it rotates and resets itself by its own gravity.

[0038] Preferably, an arc-shaped wedge B is fixedly provided on the side of the bottom of the pusher facing the insert plate, both ends of the arc-shaped wedge B are arc-shaped inclined surface structures, and the arc-shaped wedge B is coaxially arranged with the rotating shaft;

[0039] The insert plate has an arc-shaped groove on the side near the arc-shaped wedge B. Arc-shaped wedges A are fixedly installed at both ends of the arc-shaped groove. The ends of the arc-shaped wedges A that are close to each other are arc-shaped inclined structures. The arc-shaped wedges A at both ends cooperate with the ends of the arc-shaped wedges B respectively.

[0040] Compared with existing technologies, this solution has the following advantages: The slide block is used to lift the installed cable support, so that the cable support can automatically cooperate with the vertical load component and the horizontal load component. This facilitates the assembly of the vertical load component and the horizontal load component with the cable support. Under the action of the vertical load component and the horizontal load component, the load on the cable support can be adjusted at any time, which realizes the easy adjustment of the simulated test load. Furthermore, the rigid connection facilitates the control of the load position to meet different test conditions.

[0041] This solution isolates the simulated testing space by setting up a enclosure to prevent the energy generated when the cable support deforms during the testing process from exceeding the energy of the operator and causing injury. Furthermore, by using a sliding block to lift the cable support, not only is the cable support reinforced, but it is also moved away from the testing window to cooperate with the horizontal load components, making the simulation experiment operation more convenient. Attached Figure Description

[0042] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of this application;

[0043] Figure 2 This is a schematic diagram of the internal structure of an embodiment of this application;

[0044] Figure 3 This is a side view of the internal structure of an embodiment of this application;

[0045] Figure 4 This is a schematic diagram of the detection state in an embodiment of this application;

[0046] Figure 5 This is a schematic diagram of the structure of the upright frame and horizontal load in an embodiment of this application;

[0047] Figure 6 This is a schematic diagram of the installation structure of the cable bracket according to an embodiment of this application;

[0048] Figure 7 This is a schematic diagram of the vertical load structure in an embodiment of this application;

[0049] Figure 8 This is a schematic diagram of the connection strength structure of the horizontal load detection and limiting structure in an embodiment of this application;

[0050] Figure 9 This is a schematic diagram of the limiting strength structure of the horizontal load detection limiting structure in an embodiment of this application;

[0051] Figure 10 This is a schematic diagram of the cooperation structure between the horizontal load and the limiting structure in an embodiment of this application;

[0052] Figure 11 This is a schematic diagram of the structure of a horizontal load according to an embodiment of this application;

[0053] Figure 12 This is a schematic diagram of the insert plate in an embodiment of this application.

[0054] In the picture:

[0055] 100. Cable bracket; 101. Fixing frame; 102. Support frame; 103. Limiting structure; 104. Mounting structure; 105. Limiting groove;

[0056] 1. Housing; 11. Detection window; 12. Base plate; 13. Stand; 14. Slide; 15. Elastic support; 16. Base; 17. Vibration motor; 18. Detection host; 19. Connecting seat; 110. Lifting drive; 111. Socket; 112. Pin; 113. Connecting bracket; 114. Fixed seat; 115. Positioning component;

[0057] 2. Vertical load assembly; 21. First mounting bracket; 22. Support; 23. U-shaped bracket; 24. Slider; 25. Pull-down component; 26. Guide rail; 27. Limiting plate; 28. Pull-down drive component; 29. ​​Pressure block; 210. Pressure sensor A; 211. Slide rail; 212. First translation drive component;

[0058] 3. Horizontal load assembly; 31. Pushing component; 32. Clamping groove; 33. Push block; 34. Insert plate; 341. Rotating shaft; 342. Arc-shaped groove; 343. Arc-shaped wedge block A; 35. Reinforcing plate; 36. Second translation drive component; 37. Square column; 38. Sliding sleeve; 39. Side plate; 310. Pressure sensor B; 311. Connecting plate; 312. Limiting block; 313. Arc-shaped wedge block B. Detailed Implementation

[0059] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0060] Please see Figures 1-12 This application provides the following technical solutions:

[0061] A subway cable bracket limiting strength simulation testing device includes a housing 1, a vertical load component 2, and a horizontal load component 3. A testing window 11 is provided on the outer side of the housing 1. A base plate 12 is fixedly installed at the bottom inside the housing 1, and a support frame 13, which is a portal frame, is fixedly installed on the top of the base plate 12. A sliding block 14 for supporting the cable bracket 100 is slidably installed on the inner side of the support frame 13 under external force. The vertical load component 2 is located on the top of the base plate 12 and applies tensile force to the support frame 102 in the cable bracket 100. The horizontal load component 3 is located on the outer side of the support frame 13 and, driven by the sliding block 14, cooperates with the limiting structure 103 in the cable bracket 100 to apply horizontal thrust to the limiting structure 103. The testing window 11 corresponds to the vertical load component 2 and is located below the horizontal load component 3. The sliding block 14 drives the cable bracket 100 to be positioned above the testing window 11 for testing.

[0062] When testing the cable bracket 100, the cable bracket 100 is first installed inside the housing 1 through the testing window 11. After the cable bracket 100 is hung on the outside of the slide block 14, the testing host 18 on the outside of the housing 1 controls the lifting drive 110 on the inside of the upright 13 to drive the slide block 14 to slide upward, so that the slide block 14 moves the cable bracket 100 closer to the horizontal load component 3 for engagement. This allows the horizontal load component 3 to apply a horizontal thrust to the limiting structure 103 at the end of the cable bracket 100 for limiting strength testing. At the same time, the vertical load component 2 applies a downward pull to the support frame 102 below, so as to conduct a comprehensive strength test on the cable bracket 100. The vertical load component 2 and the horizontal load component 3 can adjust the vertical and horizontal loads on the cable bracket 100 in real time, making the testing operation more convenient. The lifting drive 110 is fixedly installed on the inside of the upright 13 through the connecting seat 19.

[0063] To ensure the accuracy of the testing structure, the cable bracket 100 will be subject to vibration after supporting the cable during actual use. Therefore, elastic support members 15, which are springs, are provided at the four corners of the bottom of the base plate 12. A base 16 is fixedly installed at the bottom of the elastic support member 15, and vibration motors 17 are fixedly installed on both sides of the bottom of the base plate 12 for vibration testing of the cable bracket 100. By simulating the shock resistance of the cable bracket 100 when supporting the cable, the testing structure is made more realistic and accurate.

[0064] Based on the above implementation scheme, in order to facilitate the connection between the vertical load assembly 2 and the cable bracket 100, the vertical load assembly 2 includes a first mounting frame 21 fixedly installed on the outside of the upright frame 13. A support 22 is provided on the first mounting frame 21, and a U-shaped frame 23 is provided on the top of the support 22. The U-shaped frame 23 opens upward, and a slider 24 is fixedly installed on the opposite side of its top. A pull-down member 25 is slidably installed on the outside of the slider 24. The pull-down member 25 is located between two support frames 102 installed above and below the cable bracket 100. The U-shaped frame 23 is driven by an external force to apply a vertical pulling force to the pull-down member 25.

[0065] When installing the cable bracket 100, the two support frames 102 in the cable bracket 100 can be placed on the upper and lower sides of the pull-down member 25 respectively. After the cable bracket 100 rises, the upper support frame 102 cooperates with the horizontal load component 3 to test the horizontal limit strength, while the lower support frame 102 first drives the pull-down member 25 to slide outside the slider 24 during the rising process. When the rising stops, the pull-down member 25 is pulled by the pull-down U-shaped frame 23, so that the pull-down member 25 applies a vertical pull force to the lower support frame 102.

[0066] Based on the above implementation scheme, a pull-down drive component 28 is fixedly installed on the inner side of the support 22. The pull-down drive component 28 is a component with active linear displacement driving force, such as a cylinder, hydraulic cylinder, or electric push rod. The driving end of the pull-down drive component 28 passes through the bottom of the U-shaped frame 23 and is fixedly installed with a pressure block 29. A pressure sensor A210 is fixedly installed at the bottom of the pressure block 29. The pressure sensor A210 is located at the bottom of the U-shaped frame 23. A limit plate 27 is fixedly installed on the outer side of the bottom of the U-shaped frame 23. The limit plate 27 is located on the outer side of the pressure block 29. A guide rail 26 is fixedly installed on the top of the support 22. The guide rail 26 is slidably installed on the outer side of the U-shaped frame 23. Under the action of the pull-down drive component 28, The pressure block 29 is driven to move downward, causing the U-shaped frame 23 to pull down the slider 24, thereby transmitting the tension to the pull-down member 25. During the application of tension, the pressure block 29 and the bottom of the U-shaped frame 23 compress the pressure sensor A210, thereby detecting the tension load on the support frame 102. The load size can be changed by controlling the movement of the drive end of the pull-down drive member 28, while the limiting plate 27 ensures that the U-shaped frame 23 is always connected to the pressure block 29.

[0067] Based on the above implementation scheme, during the actual testing process, the different hanging positions of the pull-down member 25 have different effects on the support strength of the support frame 102. In order to more comprehensively test the strength of the cable bracket 100, the support 22 is slidably set on the upper side of the first mounting frame 21 by external force, which is used to adjust the hanging position of the pull-down member 25 on the top of the support frame 102. Specifically, a slide rail 211 is fixedly set on the top of the first mounting frame 21, and the support 22 is slidably set on the top of the slide rail 211. The support 22 is slidably set under the drive of the first translation drive member 212, which is fixedly set on the inner side of the upright frame 13. Thus, by adjusting the hanging position of the pull-down member 25, the limiting strength of the subway cable at different positions on the top of the support frame 102 can be simulated. The first translation drive member 212 and the second translation drive member 36 described later can both be cylinders, hydraulic cylinders or electric push rods.

[0068] Based on the above implementation scheme, in order to simultaneously test multiple different cable supports 100 under the same vibration intensity, and with at least two cable supports 100 forming a control group, a frame 13 is arranged on the top of the base plate 12, and a vertical load component 2 and a horizontal load component 3 are provided on the outside of the frame 13. This allows for the testing of the limiting strength of different loads at the same stress position or different stress positions with the same load.

[0069] Based on the above implementation scheme, in actual use, since the cable bracket 100 includes a fixed frame 101, two support frames 102 fixedly installed inside the fixed frame 101, and a limiting structure 103 fixedly installed at the end of the support frame 102, the cable at the top of the support frame 102 is horizontally limited by the limiting structure 103 with the end bent upward, it is necessary to test the bending strength of the limiting structure 103. The horizontal load assembly 3 includes a pusher 31 located at the top of the upper support frame 102. A pusher block 33 is fixedly installed on the outer side of the bottom of the pusher 31. Driven by the pusher 31, a horizontal load is applied to the limiting structure 103 at the end of the support frame 102 to detect the bending strength of the limiting structure 103. The pusher 31 is located at the driving end of the second translation drive 36. The second translation drive 36 is fixedly installed on the outer side of the upright frame 13. A square column 37 is fixedly installed at the driving end of the second translation drive 36. A sliding sleeve 38 is axially slidably installed on the outer side of the square column 37. The sliding sleeve 38 is fixedly installed to the pusher 31 through the outer side plate 39. A pressure sensor B310 is fixedly installed at the end of the square column 37. A connecting plate 311 is installed at the end to be detected of the pressure sensor B310. The connecting plate 311 is fixedly installed on the outer side of the pusher 31. A reinforcing plate 35 is fixedly installed on the side of the pusher 31 near the second translation drive 36.

[0070] When testing the bending strength of the limiting structure 103, the square column 37 is driven forward by the second translation drive 36, so that the square column 37 drives the pusher 31 to approach the limiting structure 103 through the sliding sleeve 38 and the sliding sleeve 38 until the push block 33 on the outside of the pusher 31 contacts the limiting structure 103. As the second translation drive 36 continues to apply the pushing force, it compresses the detection end of the pressure sensor B310. At this time, it can be detected that the pushing force on the limiting structure 103 gradually increases until the limiting structure 103 deforms, which will cause the detection result of the pressure sensor B310 to suddenly drop. Then, the horizontal support strength of the limiting structure 103 can be determined according to the detection structure of the pressure sensor B310.

[0071] Based on the above implementation scheme, since several cable brackets 100 may be installed vertically during field use, in order to further improve the horizontal limiting capability of the cable, a limiting groove 105 will be opened inside the limiting structure 103 to form a connection space for the limiting component. After the limiting component is inserted into the limiting groove 105, the connection strength between the limiting structure 103 and the support frame 102 also needs to be tested to prevent instability at the connection between the limiting structure 103 and the support frame 102 from losing the limiting effect; specifically, the pusher 3 A clamping groove 32 is provided at the bottom, and an insert plate 34 is rotatably arranged inside the clamping groove 32. The insert plate 34 can be inserted into the limiting groove 105 inside the limiting structure 103. Driven by the pusher 31, a horizontal load is applied to the limiting groove 105 inside the limiting structure 103 to detect the connection strength between the limiting structure 103 and the support frame 102. When the bending strength of the limiting structure 103 is detected, the insert plate 34 is located at the top of the support frame 102 and rotates away from the opening of the limiting structure 103 by the compression of the support frame 102.

[0072] When testing the connection strength between the limiting structure 103 and the support frame 102, based on the length of the support frame 102, the second translation drive 36 drives the pusher 31 to be positioned directly above the limiting groove 105. After the support frame 102 rises to a certain height, it automatically cooperates with the pusher 31, causing the pusher 31 to insert into the inner side of the limiting groove 105 to act as a limiting element. Then, a thrust is applied. When the thrust reaches the required value and the limiting structure 103 is undamaged, it indicates that the connection strength between the limiting structure 103 and the support frame 102 meets the production requirements.

[0073] Based on the above implementation scheme, in order to facilitate the installation of the cable bracket 100 and the slide 14 and to ensure the stability of the cable bracket 100 during the testing process, a socket 111 is provided on one side of the slide 14 corresponding to the mounting structure 104 on the outer side of the fixing frame 101. A pin 112 is inserted into the inner side of the socket 111. A plug-in bracket 113 is fixedly installed at the end of the pin 112 on the same side of the fixing frame 101. A positioning member 115 that cooperates with the plug-in bracket 113 is fixedly installed on the outer side of the upright frame 13. The opposite sides of the plug-in bracket 113 and the positioning member 115 are corresponding inclined structures, forming a wedge-shaped block cooperation method, which is used to fix the cable bracket 100 simultaneously when it cooperates with the pusher 31.

[0074] Then, when installing the cable bracket 100, the mounting structure 104 on the outside of the fixing frame 101 is aligned with the insertion hole 111 on the inside of the slide 14. Then, the pin 112 on the outside of the plug-in bracket 113 is inserted into the mounting structure 104 and the inside of the insertion hole 111. At this time, the cable bracket 100 is hung and limited in the vertical direction. When the slide 14 drives the cable bracket 100 to rise to a certain height, the plug-in bracket 113 automatically cooperates with the positioning member 115 on the outside of the upright frame 13, so that the cable bracket 100 is pressed and limited in the horizontal direction. The positioning member 115 is fixedly installed on the outside of the upright frame 13 through the fixing seat 114 and is used to connect the second translation drive member 36 to ensure the stability of the overall structure.

[0075] Based on the above implementation scheme, since the horizontal load component 3 is located inside the housing 1 and above the detection window 11, it is not convenient to switch the state of the insert plate 34 between the two states of detecting the bending strength and connection strength of the limiting structure 103. In order to enable the insert plate 34 to adapt to the detection work in different states, the insert plate 34 is rotatably set with the pusher 31 via the rotating shaft 341. The bottom of the insert plate 34 is an arc-shaped structure, and the center of the arc-shaped structure is eccentrically set with the rotating shaft 341. The rotating shaft 341 is located on the side of the pusher 31 near the opening of the limiting structure 103, which is used to drive the insert plate 34 to rotate away from the opening of the limiting structure 103. When the insert plate 34 moves away from the support frame 102 above, it rotates and resets by its own gravity. The clamping groove 32 is fixedly provided with a limiting block 312 on the side near the rotating shaft 341 to limit the rotation angle of the insert plate 34.

[0076] Based on the above implementation scheme, when testing the bending strength of the limiting structure 103, the second translation drive 36 drives the insert plate 34 to be located at the top of the support frame 102. After the support frame 102 rises, it pushes the arc-shaped structure at the bottom of the insert plate 34, causing the insert plate 34 to rotate around the pivot 341 to the side away from the opening of the limiting structure 103, thereby automatically storing the insert plate 34. When the second translation drive 36 pushes the pusher 31 closer to the bending surface of the limiting structure 103, since the insert plate 34 passes through the connection between the limiting structure 103 and the support frame 102, it will not fall into the inner side of the limiting groove 105 due to its own gravity. Furthermore, before the pusher 33 contacts the limiting structure 103, during the process of the pusher 31 pushing the pusher 33 to move, the insert plate 34 can rotate under the pressure of the limiting structure 103, preventing the insert plate 34 from being directly squeezed by the limiting structure 103 and deformed or damaged.

[0077] In fact, due to the assembly gap between the insert plate 34 and the clamping groove 32, when the push block 33 or the insert plate 34 pushes the limiting structure 103, the clamping groove 32 and the connection with the insert plate 34 may be squeezed and deformed (such as the gap of the clamping groove 32 is reduced), which will cause the insert plate 34 to be unable to adjust to different states by its own gravity. In order to ensure that the insert plate 34 can rotate smoothly inside the clamping groove 32, an arc-shaped wedge B313 is fixedly provided on one side of the pusher 31. Both ends of the arc-shaped wedge B313 are arc-shaped inclined structures, and the arc-shaped wedge B313 is coaxially arranged with the rotating shaft 341. An arc-shaped groove 342 is opened on the side of the insert plate 34 near the arc-shaped wedge B313. Arc-shaped wedges A343 are fixedly provided at both ends of the arc-shaped groove 342. The ends of the arc-shaped wedges A343 that are close to each other are arc-shaped inclined structures, and the arc-shaped wedges A343 at both ends cooperate with the ends of the arc-shaped wedges B313 respectively. Specifically, when testing the bending strength of the limiting structure 103, whether the pusher 31 drives the push block 33 to contact or not contact the limiting structure 103, the arc-shaped wedge A343 located at one end of the arc-shaped groove 342 and the arc-shaped inclined surface at one end of the arc-shaped wedge B313 cooperate with each other. At this time, the insert plate 34 is squeezed by the arc-shaped wedge A343 and the arc-shaped wedge B313 and automatically rotates along the axis of the rotating shaft 341 away from the arc-shaped wedge B313 until it is close to the inner side of the clamping groove 32. At this time, the thrust generated by the limiting structure 103 can be directly transmitted to the insert plate 34 through the clamping groove 32, and then through the arc-shaped groove 342. The inner arc-shaped wedge A343 transmits to the arc-shaped wedge B313 to ensure the stability of the gap in the clamping groove 32. Similarly, when the connection strength of the limiting structure 103 is tested, the insert plate 34 is located directly below the limiting groove 105 and rotates to its maximum extent by its own gravity. At this time, the arc-shaped wedge A343 and the arc-shaped wedge B313 at the other end of the inner side of the arc-shaped groove 342 cooperate and squeeze each other through the arc-shaped inclined surface, so that the insert plate 34 is also close to the inner side of the clamping groove 32 along the axis of the rotating shaft 341 to support its gap, so as to prevent the clamping groove 32 from being deformed by compression and affecting the rotation adjustment of the insert plate 34.

[0078] The principle and advantages of subway cable support limit strength simulation testing equipment:

[0079] First, remove the cable bracket 100 and place it inside the housing 1 through the detection window 11, positioning the two support frames 102 of the cable bracket 100 above and below the pull-down member 25. Then, align the mounting structure 104 on the outside of the fixing frame 101 with the insertion hole 111 on the inside of the slide block 14. Next, insert the pin 112 on the outside of the plug-in frame 113 into the mounting structure 104 and the inside of the insertion hole 111, thus setting a vertical limit on the cable bracket 100. Then, drive the slide block 14 upward through the lifting drive member 110 on the inside of the upright frame 13. During the movement, the lower support frame 102 first drives the pull-down member 25 to move outside the slider 24. When the cable support 100 slides up to a certain height, the plug-in bracket 113 automatically engages with the positioning piece 115 on the outside of the upright bracket 13, thereby pressing and limiting the cable support 100 in the horizontal direction to prevent it from tilting or loosening during the detection process. Then, the pull-down drive 28 drives the pressure block 29 to move downward, causing the pressure block 29 to pull the U-shaped frame 23 down the slider 24, thus transferring the tension to the pull-down member 25. During the application of tension, the pressure block 29 and the bottom of the U-shaped frame 23 compress the pressure sensor A210, thereby detecting the tensile load on the support frame 102. Furthermore, the movement of the drive end of the pull-down drive 28 can be controlled to modify the... The load size can be varied; and to facilitate changing the force position of the support frame 102, the first translation drive 212 drives the support 22 to slide along the slide rail 211 on the top of the first mounting frame 21, so that the support 22 drives the pull-down member 25 to move horizontally, adjusting the hanging position on the top of the support frame 102 to meet different testing requirements; and the horizontal load component 3 located above the testing window 11 automatically cooperates with the support frame 102 after it rises to a certain height, so that the second translation drive 36 drives the square column 37 to move forward, so that the square column 37 drives the pusher 31 to approach the limiting structure 103 through the sliding sleeve 38, until the pusher 31 is pushed on the outside. Block 33 contacts the limiting structure 103. As the second translation drive 36 continuously applies a pushing force, it compresses the detection end of the pressure sensor B310. At this time, it can be detected that the pushing force on the limiting structure 103 gradually increases until the limiting structure 103 deforms, causing the detection result of the pressure sensor B310 to suddenly drop. Then, based on the detection structure of the pressure sensor B310, the horizontal support strength of the limiting structure 103 can be determined. Furthermore, under the pressure load, the vibration motor 17 can drive the detection window 11 to vibrate vertically on the top of the elastic support 15, so as to simulate the limiting strength of the cable bracket 100 when supporting the cable and being vibrated.

[0080] In the subway cable bracket limit strength simulation testing equipment of this application, when the insertion plate 34 is used to simulate the bending strength of the limit structure 103, the second translation drive 36 drives the insertion plate 34 to the top of the support frame 102. This causes the support frame 102 to rise and push the arc-shaped structure at the bottom of the insertion plate 34, causing the insertion plate 34 to rotate around the pivot 341 to the side away from the opening of the limit structure 103. This automatically retracts the insertion plate 34. When the second translation drive 36 pushes the pusher 31 towards the bending surface of the limit structure 103, the insertion plate 34 will not fall into the inner side of the limit groove 105 due to its own gravity because it passes through the connection between the limit structure 103 and the support frame 102. Furthermore, before the pusher 33 contacts the limit structure 103, during the process of the pusher 31 pushing the pusher 33, the insertion plate... The plate 34 can rotate under the pressure of the limiting structure 103, preventing the plate 34 from being deformed and damaged by direct pressure on the limiting structure 103. When the pusher 31 drives the push block 33 to contact or not contact the limiting structure 103, the arc wedge A343 at one end of the arc groove 342 and the arc inclined surface at one end of the arc wedge B313 cooperate with each other. At this time, the plate 34 is pressed by the arc wedge A343 and the arc wedge B313 and automatically rotates along the axis of the rotating shaft 341 away from the arc wedge B313 until it is close to the inside of the clamping groove 32. At this time, the thrust generated by the limiting structure 103 can be directly transmitted to the plate 34 through the clamping groove 32, and then transmitted to the arc wedge B313 through the arc wedge A343 inside the arc groove 342 to ensure the stability of the gap of the clamping groove 32.

[0081] When testing the connection strength of the limiting structure 103, based on the length of the support frame 102, the second translation drive 36 drives the pusher 31 to be positioned directly above the limiting groove 105. After the support frame 102 rises to a certain height, it automatically cooperates with the pusher 31, causing the pusher 31 to insert into the inner side of the limiting groove 105 to act as a limiting element. Then, a thrust is applied. When the thrust reaches the required value and the limiting structure 103 is undamaged, it indicates that the connection strength between the limiting structure 103 and the support frame 102 meets the production requirements. At this time, the insert plate 34 is located directly below the limiting groove 105 and rotates to its maximum extent under its own gravity. At this time, the arc wedge A343 and the arc wedge B313 located at the other end of the arc groove 342 cooperate and press each other through the arc inclined surface, so that the insert plate 34 is also close to the inner side of the clamping groove 32 along the axis of the rotating shaft 341 to support the gap, so as to prevent the clamping groove 32 from being deformed by the compression and affecting the rotation adjustment of the insert plate 34.

[0082] It is worth noting that the above-mentioned state adjustment method has the following advantages:

[0083] Firstly, before testing, the position of the insert plate 34 can be adjusted horizontally by driving the adjusting pusher 31 according to the testing items, so that the insert plate 34 can move directly above the limiting groove 105 and above the support frame 102. This allows the insert plate 34 to adapt to the connection strength test and bending strength test of the limiting structure 103 respectively, making the loading and installation of the cable bracket 100 more convenient.

[0084] Secondly, when the insert plate 34 is above the support frame 102, it rotates and retracts under the squeezing action of the support frame 102 to meet the requirement of testing the strength of the outer ring of the limiting structure 103. When the insert plate 34 is directly above the limiting groove 105, it extends out of the bottom of the pusher 31 by its own gravity and can automatically insert into the inside of the limiting groove 105 in conjunction with the rising action of the support frame 102, thus realizing the effect of automatic cooperation between the cable bracket 100 and the horizontal load component 3.

[0085] Thirdly, by providing an arc-shaped groove 342 on one side of the insert plate 34 and fixing arc-shaped wedges A343 at both ends of the arc-shaped groove 342, the arc-shaped groove 342 is within the rotation range of the insert plate 34. Furthermore, the arc-shaped wedges A343 are fixedly installed on the inner side of the clamping groove 32, corresponding to the arc-shaped wedges B313. This allows the insert plate 34 to automatically and tightly abut against the inner side of the clamping groove 32 through the cooperation of the arc-shaped wedges A343 and B313 before and after rotation, preventing deformation and damage to the clamping groove 32 during the application of thrust, thus ensuring that the insert plate 34 rotates smoothly inside the clamping groove 32.

[0086] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and 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, and therefore should not be construed as a limitation of this application.

[0087] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0088] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0089] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0090] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0091] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A subway cable support limiting strength simulation testing device, characterized in that, include: The enclosure has a detection window on one side, and a support frame is installed inside the enclosure. A slide block for supporting the cable bracket is slidably connected to the support frame. A vertical load assembly, located on one side of the support frame, can apply a vertical tensile force to the support frame in the cable tray; The horizontal load assembly, mounted on the upright, cooperates with the limiting structure in the cable bracket to apply a horizontal thrust to the limiting structure; The horizontal load component includes: The second translation drive is connected to the upright frame and is located above the slide block; The pushing component is linked with the second translational driving component, and the second translational driving component can drive the pushing component to move in the horizontal direction; A push block is disposed on the side of the pusher away from the upright; the push block can apply a horizontal thrust to the limiting structure at the end of the support frame of the cable bracket, and is used to detect the bending strength of the limiting structure. The insert plate is rotatably mounted at the bottom of the pusher; the insert plate corresponds to the limiting groove of the upper limit structure of the cable bracket, and the insert plate can be inserted into the limiting groove; the second translation drive can drive the insert plate to move, and the connection strength between the limiting structure and the support frame can be detected. The insert plate is rotatably connected to the pusher via a rotating shaft. The bottom of the insert plate has an arc-shaped structure, and the center of the arc-shaped structure is eccentrically connected to the rotating shaft. The rotating shaft is located on the side of the pusher that is close to the opening of the limiting structure, and is used to drive the insert plate to rotate away from the opening of the limiting structure. When the insert plate moves away from the support frame above, it rotates and resets itself by its own gravity. An arc-shaped wedge B is fixedly installed on the side of the bottom of the pusher facing the insert plate. Both ends of the arc-shaped wedge B are arc-shaped inclined surfaces. The arc-shaped wedge B is coaxially arranged with the rotating shaft. The insert plate has an arc-shaped groove on the side near the arc-shaped wedge B. Arc-shaped wedges A are fixedly installed at both ends of the arc-shaped groove. The ends of the arc-shaped wedges A that are close to each other are arc-shaped inclined structures. The arc-shaped wedges A at both ends cooperate with the ends of the arc-shaped wedges B respectively.

2. The subway cable bracket limit strength simulation testing equipment as described in claim 1, characterized in that, The interior of the box also includes: The base is located at the bottom of the box body; A base plate is disposed above the base, and the bottom end of the upright frame is fixedly connected to the upper side of the base plate; An elastic support is disposed between the lower side of the base plate and the upper side of the base. The vibration motor, linked to the base plate, can cause the base plate to vibrate.

3. The subway cable bracket limit strength simulation testing equipment as described in claim 2, characterized in that, Several uprights are arranged side by side on the base plate, and one vertical load component and one horizontal load component are respectively provided for each upright.

4. The subway cable bracket limit strength simulation testing equipment as described in claim 3, characterized in that, The slide block is provided with an insertion hole; the housing also includes: A lifting drive component is mounted on the upright frame, and the lifting drive component is linked with the slide block, which can drive the slide block to rise or fall. A connector frame, one side of which is provided with a pin corresponding to the socket; The socket and pin correspond to the mounting bracket of the cable support to be tested.

5. The subway cable bracket limit strength simulation testing equipment as described in claim 4, characterized in that, The vertical load component includes: The first mounting bracket is fixedly mounted on the base plate and located on the bottom horizontal side of the upright frame; The support is mounted on the first mounting bracket; A pull-down drive component is mounted on the support. The pull-down component is linked with the pull-down drive component, which can drive the pull-down component to move vertically.

6. The subway cable bracket limit strength simulation testing equipment as described in claim 5, characterized in that, The vertical load component also includes: The U-shaped frame is linked to the movable end of the pull-down drive component; the pull-down component and the U-shaped frame are vertically slidably connected.

7. The subway cable bracket limit strength simulation testing equipment as described in claim 6, characterized in that, The movable end of the pull-down drive extends through the bottom of the U-shaped frame, and the vertical load assembly further includes: The pressure block is connected to the movable end of the pull-down drive component. A pressure sensor A is fixedly installed at the bottom of the pressure block, and the pressure sensor A is located on the upper side of the bottom of the U-shaped frame.

8. The subway cable bracket limit strength simulation testing equipment as described in claim 5, characterized in that, The support and the first mounting bracket are slidably connected, and the sliding direction is horizontal. The vertical load assembly further includes: The first translation drive is mounted on the first mounting bracket. The first translation drive is linked with the support and can drive the support to slide.

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