Tunnel anti-seismic performance detection system

Abstract

The invention relates to the technical field of tunnel anti-seismic performance detection and analysis, in particular to a tunnel anti-seismic performance detection system which is characterized in that a winding mechanism is mounted on a first connecting seat, one end of a pull rope is wound on the winding mechanism, and the other end of the pull rope is fixedly connected to a second connecting seat. The winding mechanism is provided with a metering module used for determining the release length of the pull rope and further provided with a force applying assembly used for continuously applying pulling force to the pull rope so that the pull rope can be in a tightened state all the time. The temperature detection mechanism is used for detecting the temperature of the pull rope. And the data center is used for determining the relative motion relation between the mechanical parts of the tunnel model in the vibration process according to the release length. The data center is further used for controlling the lubricating mechanism to coat the pull rope with the lubricating agent when the temperature detected by the temperature detection mechanism is larger than or equal to the temperature threshold value. According to the method, the actual performance condition of the mechanical part in the tunnel model in the vibration process can be better displayed, and reference can be provided for targeted optimization of a tunnel scheme.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel seismic performance detection and analysis, and in particular to a tunnel seismic performance detection system. Background Art

[0002] In the detection and analysis of the seismic performance of tunnels, laboratory analysis is used. When conducting vibration tests, the tunnel model that has experienced vibration is often tested and analyzed after the entire vibration process is over, in order to obtain the actual seismic performance analysis results of the tunnel model. This method can only be result-oriented, and it is impossible to intuitively restore the actual performance of each mechanical component of the tunnel model during the vibration process, and it is impossible to more accurately grasp the actual performance of each mechanical component in ensuring the seismic performance of the tunnel model, which is not conducive to the targeted optimization of the tunnel design plan.

[0003] In view of this, this application is hereby filed. Summary of the invention

[0004] The purpose of the present invention is to provide a tunnel seismic performance detection system, which can better demonstrate the actual performance of mechanical components in the tunnel model during vibration, facilitate more accurate grasp of the actual performance of each mechanical component in ensuring the seismic performance of the tunnel model, and provide a reference for the targeted optimization of the tunnel scheme.

[0005] The embodiment of the present invention is achieved as follows: A tunnel seismic performance detection system comprises: a first connecting seat, a second connecting seat, a winding mechanism, a pull rope, a first limiting ring, a second limiting ring, a lubrication mechanism, a temperature detection mechanism and a data center.

[0006] The first connection seat is used for fixed connection with a mechanical component of the tunnel model, and the second connection seat is used for fixed connection with another mechanical component of the tunnel model.

[0007] The first limiting ring, the second limiting ring and the lubricating mechanism are all fixedly mounted on the first connecting seat. The first limiting ring and the second limiting ring are coaxially arranged with an interval, and the lubricating mechanism is arranged between the first limiting ring and the second limiting ring.

[0008] The reeling mechanism is installed on the first connecting seat, one end of the pull rope is reeled on the reeling mechanism, and the other end of the pull rope passes through the second limiting ring and the first limiting ring in sequence and is fixedly connected to the second connecting seat.

[0009] The winding mechanism has a metering module for determining the release length of the pull rope, and the winding mechanism is also provided with a force-applying component for continuously applying tension to the pull rope so that the pull rope is always in a taut state.

[0010] The temperature detection mechanism is used to detect the temperature of the pull rope.

[0011] Both the metering module and the temperature detection mechanism are electrically connected to the data center. The data center is used to determine the relative motion relationship between the various mechanical components of the tunnel model during vibration according to the release length. The data center is also used to control the lubrication mechanism to coat the lubricant on the pull rope when the temperature detected by the temperature detection mechanism is greater than or equal to the temperature threshold.

[0012] Further, the lubrication mechanism includes: a reference ring, a positioning ring, a rotating sleeve, a swing arm, and a connecting arm.

[0013] The reference ring has an annular inner cavity in which the lubricant is accommodated, and a notch communicating with the annular inner cavity is provided on the inner ring wall of the reference ring.

[0014] The positioning ring is arranged inside the reference ring and coaxially with the reference ring, and the outer diameter of the positioning ring is smaller than the inner diameter of the reference ring.

[0015] The rotating sleeve is rotatably sleeved on the positioning ring, the rotation axis of the rotating sleeve is perpendicular to the central axis of the positioning ring, and a plurality of rotating sleeves are arranged at intervals along the circumferential direction of the positioning ring.

[0016] One end of the swing arm is hinged to the rotating sleeve. Along the circumferential direction of the positioning ring, the connecting arm is connected between the swing arms of adjacent two rotating sleeves, and the end of the connecting arm is hinged to the end of the swing arm away from the rotating sleeve, so that when one rotating sleeve rotates, the rotating sleeve can drive another rotating sleeve to rotate synchronously through the swing arm and the connecting arm.

[0017] Among them, the swing arm has a first swing position and a second swing position. When the hinge point of the swing arm and the connecting arm moves to the side of the positioning ring away from its central axis, the two swing arms connected to the same connecting arm both swing to the opposite side, and the swing arm is located at the first swing position. When the hinge point of the swing arm and the connecting arm moves to the side of the positioning ring close to its central axis, the two swing arms connected to the same connecting arm both swing to the opposite side, and the swing arm is located at the second swing position.

[0018] A suction bladder is fixedly connected to the outer side wall of the rotating sleeve, and the swing arm is connected to the extrusion part of the suction bladder. The suction bladder has a suction port and a discharge port, and one-way valves are provided at both the suction port and the discharge port.

[0019] A coating nozzle is fixedly connected to the side of the connecting arm away from the positioning ring, and the discharge port of the suction bladder is communicated with the inlet of the coating nozzle.

[0020] The pull rope passes through the positioning ring. When the swing arm is located at the first swing position, the suction port of the suction bladder extends to the notch. When the swing arm is located at the second swing position, the coating nozzle faces the pull rope.

[0021] When the temperature detected by the temperature detection mechanism is greater than or equal to the temperature threshold, the data center is used to control the rotation of the rotating sleeve so that the swing arm moves between the first swing position and the second swing position.

[0022] Furthermore, the rotation axis line of the swing arm is perpendicular to the rotation axis line of the rotating sleeve, and the swing arm is arranged perpendicular to its rotation axis line.

[0023] One end of the swing arm far away from the rotating sleeve is also fixedly connected with an extension arm, and the extension arm is arranged perpendicular to the swing arm and extends towards the side close to the positioning ring.

[0024] Both ends of the connecting arm have bending parts bent towards the side away from the positioning ring, and the bending parts are hinged to the end of the extension arm far away from the swing arm.

[0025] Furthermore, when the swing arm is at the first swing position, the distance between the suction port and the positioning ring is greater than the distance between the coating nozzle and the positioning ring.

[0026] Furthermore, the suction bladder includes: a first baffle, a second baffle, a suction pipe, a bladder body, and a discharge pipe.

[0027] The first baffle is fixedly connected to the rotating sleeve, the second baffle is fixedly connected to the swing arm, and the bladder body is connected between the first baffle and the second baffle.

[0028] The suction pipe is made of a rigid material. One end of the suction pipe is fixedly connected to the rotating sleeve, and the other end penetrates through the bladder body and extends to the side of the bladder body far away from the positioning ring. A sealing treatment is performed between the bladder body and the suction pipe.

[0029] A side port is opened on the side wall of the suction pipe, and the side port is located inside the bladder body. The discharge pipe connects the bladder body and the coating nozzle. One-way valves are arranged at the inlet of the suction pipe and the outlet of the discharge pipe.

[0030] Furthermore, the width of the notch is adapted to the outer diameter of the suction pipe.

[0031] Furthermore, the drawstring is a low-elastic cord.

[0032] Furthermore, the inner diameter of the first limiting ring is adapted to the outer diameter of the drawstring.

[0033] The beneficial effects of the technical solution of the embodiment of the present invention include: Before performing a vibration experiment on the tunnel model, the first connecting seat and the second connecting seat can be set between the mechanical components of the tunnel model as needed, and the relative displacement relationship between the various mechanical components of the tunnel model during the vibration process can be determined according to the change in the release length of the drawstring during the vibration process, so as to understand the actual vibration performance of the various structural components of the tunnel model during the vibration process.

[0034] In addition, the data center is also used to control the lubricating mechanism to coat the pulling rope with lubricant when the temperature detected by the temperature detection mechanism is greater than or equal to the temperature threshold. For the pulling rope with a constant or slightly changed release length, the amount of winding and unwinding of the pulling rope is small, the friction between the pulling rope and other components is relatively small, and the heat generated by friction is also small, which will not have an adverse impact on the mechanical properties of the pulling rope. For the pulling rope with a large release length, the amount of winding and unwinding of the pulling rope is large, the friction between the pulling rope and other components is large, and the heat generated by friction is relatively large. The actual heat generation can be judged by detecting the temperature at the pulling rope. When the temperature of the pulling rope rises significantly (greater than or equal to the temperature threshold), it may have an adverse impact on the mechanical properties of the pulling rope, affecting the ductility of the pulling rope, and in severe cases, it may even cause the pulling rope to break. By controlling the lubricating mechanism to coat the pulling rope with lubricant, the mechanical friction can be effectively alleviated, the heat generated by friction can be significantly reduced, and the pulling rope can be prevented from being damaged.

[0035] Generally speaking, the tunnel seismic performance detection system provided by the embodiments of the present invention can better show the actual performance of the mechanical components in the tunnel model during the vibration process, facilitate more accurately grasping the actual performance of each mechanical component in ensuring the seismic performance of the tunnel model, and can provide a reference for the targeted optimization of the tunnel scheme. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 Schematic diagram of the overall composition of the tunnel seismic performance detection system provided by the embodiments of the present invention; Figure 2 Schematic diagram of the cooperation of the lubricating mechanism; Figure 3 Schematic diagram when the tunnel seismic performance detection system is installed on the support member of the tunnel; Figure 4 Schematic diagram of the cooperation of the positioning ring and the reference ring (the swing arm is at the first swing position); Figure 5 For Figure 4 Schematic diagram of the state of the swing arm in the state of Figure 6 Schematic diagram of the cooperation of the positioning ring and the reference ring (the swing arm is at the second swing position); Figure 7 For Figure 6 Schematic diagram of the state of the swing arm in the state of Figure 8Schematic structural diagram of the rotating sleeve; Figure 9 Schematic diagram of the cooperation between the first convex ring and the second convex ring.

[0038] Explanation of reference numerals: First connecting seat 100; second connecting seat 200; winding mechanism 300; pulling rope 310; first limiting ring 320; second limiting ring 330; lubricating mechanism 400; reference ring 410; annular inner cavity 411; notch 412; mating ring 413; positioning ring 420; rotating sleeve 430; swing arm 431; extension arm 432; connecting arm 433; bending portion 434; suction bladder 500; first baffle 510; second baffle 520; suction pipe 530; bladder body 540; coating nozzle 600; first convex ring 710; second convex ring 720. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] The terms "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0043] In addition, terms such as "parallel" and "perpendicular" do not mean that the components are required to be absolutely parallel or perpendicular, but can be slightly inclined. For example, "parallel" only means that its direction is more parallel relative to "perpendicular", and does not mean that the structure must be completely parallel, but can be slightly inclined.

[0044] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "set", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] To overcome the deficiencies in the prior art, please refer to Figure 1 and Figure 2 , this embodiment provides a tunnel seismic performance detection system. The tunnel seismic performance detection system can be used to conduct auxiliary tests on the seismic performance of a tunnel model in the laboratory stage to improve the control accuracy of the actual seismic performance of the tunnel model.

[0046] The tunnel seismic performance detection system includes: a first connection seat 100, a second connection seat 200, a winding mechanism 300, a pulling rope 310, a first limiting ring 320, a second limiting ring 330, a lubricating mechanism 400, a temperature detection mechanism (not shown in the figure), and a data center (not shown in the figure).

[0047] The first connection seat 100 is used for fixedly connecting to a mechanical component of the tunnel model, and the second connection seat 200 is used for fixedly connecting to another mechanical component of the tunnel model.

[0048] In this embodiment, the first connection seat 100 has an installation inner cavity, and the first limiting ring 320, the second limiting ring 330, and the lubricating mechanism 400 are all fixedly installed in the installation inner cavity of the first connection seat 100. The first connection seat 100 is provided with an opening for communicating the installation inner cavity with the outside.

[0049] The opening, the first limiting ring 320, and the second limiting ring 330 are coaxially arranged at intervals, and the first limiting ring 320 is located on the side of the second limiting ring 330 close to the opening. The lubricating mechanism 400 is arranged between the first limiting ring 320 and the second limiting ring 330 for coating lubricant on the pulling rope 310.

[0050] The winding mechanism 300 is installed in the installation inner cavity of the first connection seat 100. One end of the pulling rope 310 is wound on the winding mechanism 300, and the other end of the pulling rope 310 sequentially passes through the second limiting ring 330, the first limiting ring 320, and the opening and is fixedly connected to the second connection seat 200.

[0051] The rewinding mechanism 300 has a metering module (not shown in the figure) for determining the release length of the drawstring 310. The rewinding mechanism 300 is also provided with a force - applying component (not shown in the figure) for continuously applying a pulling force to the drawstring 310, so that the rewinding mechanism 300 always has a tendency to retract the drawstring 310, and the drawstring 310 is always in a taut state. The force - applying component can be realized by configuring a torsion spring for the winding wheel of the drawstring 310, and is not limited thereto.

[0052] The temperature detection mechanism is used to detect the temperature of the drawstring 310.

[0053] Both the metering module and the temperature detection mechanism are electrically connected to the data center.

[0054] The data center is used to determine the movement condition between the two mechanical components connecting the first connecting seat 100 and the second connecting seat 200 according to the release length. If the release length of the drawstring 310 remains unchanged all the time, it means that there is no relative displacement between these two mechanical components (at least between the connecting parts of the first connecting seat 100 and the second connecting seat 200). If the release length of the drawstring 310 becomes longer, it means that these two mechanical components (at least between the connecting parts of the first connecting seat 100 and the second connecting seat 200) move away from each other. If the release length of the drawstring 310 becomes shorter, it means that these two mechanical components (at least between the connecting parts of the first connecting seat 100 and the second connecting seat 200) move closer to each other.

[0055] In this way, before conducting a vibration experiment on the tunnel model, the first connecting seat 100 and the second connecting seat 200 can be set between the mechanical components of the tunnel model as needed, and the relative displacement relationship between the various mechanical components of the tunnel model during the vibration process can be determined according to the change in the release length of the drawstring 310 during the vibration process, so as to understand the actual vibration performance of each structural component of the tunnel model during the vibration process.

[0056] Through this design, it is possible to better display the actual performance of the mechanical components in the tunnel model during the vibration process, facilitate more accurately grasping the actual performance of each mechanical component in ensuring the seismic performance of the tunnel model, and can provide a reference for the targeted optimization of the tunnel scheme.

[0057] In addition, the data center is also used to control the lubricating mechanism 400 to coat the pulling rope 310 with lubricant when the temperature detected by the temperature detection mechanism is greater than or equal to the temperature threshold. For the pulling rope 310 with an unchanged or slightly changed release length, the amount of the pulling rope 310 taken in and released is small, the friction between the pulling rope 310 and other components is relatively small, and the heat generated by friction is also small, which will not have an adverse impact on the mechanical properties of the pulling rope 310. For the pulling rope 310 with a large release length, the amount of the pulling rope 310 taken in and released is large, the friction between the pulling rope 310 and other components is large, and the heat generated by friction is relatively large. The actual heat generation can be judged by detecting the temperature at the pulling rope 310. When the temperature of the pulling rope 310 rises significantly (greater than or equal to the temperature threshold), it may have an adverse impact on the mechanical properties of the pulling rope 310, affecting the ductility of the pulling rope 310. In severe cases, the pulling rope 310 may break. By controlling the lubricating mechanism 400 to coat the pulling rope 310 with lubricant, the mechanical friction can be effectively relieved, the heat generated by friction can be significantly reduced, and the pulling rope 310 can be prevented from being damaged.

[0058] Through this design, the lubricant can be coated on the pulling rope 310 in a targeted manner, which not only ensures the detection accuracy, but also makes the amount of lubricant used more reasonable and more environmentally friendly.

[0059] As an example, the tunnel seismic performance detection system can be installed between different components of the support members of the tunnel thumbnail model, the tunnel full-scale model, and the physical tunnel, and is not limited thereto. For example Figure 3 As shown, the tunnel seismic performance detection system can be installed between different components of the support member to detect whether there is offset or shaking between different components of the support member.

[0060] Optionally, the pulling rope 310 is a low-elastic rope. The inner diameter of the first limiting ring 320 is adapted to the outer diameter of the pulling rope 310, and the inner diameter of the second limiting ring 330 is slightly larger than the outer diameter of the pulling rope 310. The first limiting ring 320 and the second limiting ring 330 can limit the pulling rope 310 to ensure that the pulling rope 310 remains stable when passing through the lubricating mechanism 400. Among them, the first limiting ring 320 and the second limiting ring 330 are in friction with the pulling rope 310, and mainly in friction with the first limiting ring 320.

[0061] In this embodiment, please refer to Figures 1 - 8 , the lubricating mechanism 400 includes: a reference ring 410, a positioning ring 420, a rotating sleeve 430, a swing arm 431, and a connecting arm 433.

[0062] The first limiting ring 320, the second limiting ring 330, and the reference ring 410 are coaxially arranged; The reference ring 410 has an annular inner cavity 411, the annular inner cavity 411 contains lubricant, and a notch 412 communicating with the annular inner cavity 411 is provided on the inner ring wall of the reference ring 410.

[0063] The positioning ring 420 is arranged inside the reference ring 410 and coaxially with the reference ring 410. The outer diameter of the positioning ring 420 is smaller than the inner diameter of the reference ring 410. The pull rope 310 passes through the positioning ring 420.

[0064] The rotating sleeve 430 is rotatably sleeved on the positioning ring 420. The rotation axis line of the rotating sleeve 430 is perpendicular to the central axis of the positioning ring 420. A plurality of rotating sleeves 430 are evenly spaced along the circumferential direction of the positioning ring 420. Among them, the specific number of the rotating sleeves 430 can be flexibly set according to actual needs.

[0065] One end of the swing arm 431 is hinged to the rotating sleeve 430. Along the circumferential direction of the positioning ring 420, the connecting arm 433 is connected between the swing arms 431 of two adjacent rotating sleeves 430. The end of the connecting arm 433 is hinged to the end of the swing arm 431 far from the rotating sleeve 430, so that when one rotating sleeve 430 rotates, the rotating sleeve 430 can drive another rotating sleeve 430 to rotate synchronously through the swing arm 431 and the connecting arm 433.

[0066] Among them, the swing arm 431 has a first swing position and a second swing position.

[0067] As the rotating sleeve 430 rotates, the position of the swing arm 431 changes with the rotating sleeve 430. When the hinge point of the swing arm 431 and the connecting arm 433 moves to the side of the positioning ring 420 far from its central axis, the two swing arms 431 connected to the corresponding connecting arm 433 both swing to the opposite side, that is, the ends of the two swing arms 431 far from the rotating sleeve 430 swing to the opposite side and are closer to each other. At this time, the swing arm 431 is located at the first swing position, as shown in Figure 4 and Figure 5 shown.

[0068] When the hinge point of the swing arm 431 and the connecting arm 433 moves to the side of the positioning ring 420 close to its central axis, the two swing arms 431 connected to the corresponding connecting arm 433 both swing to the opposite side, that is, the ends of the two swing arms 431 far from the rotating sleeve 430 swing to the opposite side and are farther apart. At this time, the swing arm 431 is located at the second swing position, as shown in Figure 6 and Figure 7 shown.

[0069] It should be noted that in this application, the swing of the swing arm 431 to the "opposite side" means that it swings a certain distance further towards the opposite side relative to the previous state of the swing arm 431, which is a relative concept. Similarly, the swing of the swing arm 431 to the "opposite side" means that it swings a certain distance further towards the opposite side relative to the previous state of the swing arm 431, which is also a relative concept.

[0070] A suction bladder 500 is fixedly connected to the outer side wall of the rotating sleeve 430, and the swing arm 431 is connected to the extrusion part of the suction bladder 500. The suction bladder 500 has a suction port and a discharge port, and one-way valves (not shown in the figure) are provided at both the suction port and the discharge port.

[0071] When the swing arm 431 moves from the second swing position to the first swing position, the swing arm 431 pulls the extrusion part of the suction bladder 500, causing the suction bladder 500 to be in the suction state. At this time, the one-way valve at the suction port of the suction bladder 500 opens to make the suction port open, and the one-way valve at the discharge port of the suction bladder 500 closes to seal the discharge port. Thus, the suction bladder 500 can smoothly suck through the suction port.

[0072] When the swing arm 431 moves from the first swing position to the second swing position, the swing arm 431 squeezes the extrusion part of the suction bladder 500, causing the suction bladder 500 to be in the discharge state. At this time, the one-way valve at the suction port of the suction bladder 500 closes to seal the suction port, and the one-way valve at the discharge port of the suction bladder 500 opens to make the discharge port open. Thus, the suction bladder 500 can smoothly discharge through the discharge port.

[0073] A coating nozzle 600 is fixedly connected to the side of the connecting arm 433 away from the positioning ring 420, and the discharge port of the suction bladder 500 is communicated with the inlet of the coating nozzle 600.

[0074] When the swing arm 431 is at the first swing position, the suction port of the suction bladder 500 completely extends into the notch 412. When the swing arm 431 is at the second swing position, the coating nozzle 600 faces the pull rope 310.

[0075] In this embodiment, the notch 412 extends axially along the reference ring 410 into a strip shape.

[0076] When the temperature detected by the temperature detection mechanism is greater than or equal to the temperature threshold, the data center is used to control the rotation of the rotating sleeve 430 so that the swing arm 431 moves between the first swing position and the second swing position.

[0077] When the swing arm 431 is at the first swing position, the hinge point of the swing arm 431 and the connecting arm 433 moves to the side of the positioning ring 420 away from its central axis. At this time, the suction bladder 500 is also located on the side of the rotating sleeve 430 away from the central axis of the positioning ring 420, that is: on the side away from the pull rope 310. During the process of the swing arm 431 moving from the second swing position to the first swing position, before the swing arm 431 completely reaches the first swing position, the suction port of the suction bladder 500 can smoothly cooperate with the notch 412 of the reference ring 410, so as to smoothly suck the lubricant in the annular inner cavity 411 into the suction bladder 500.

[0078] When the swing arm 431 is at the second swing position, the hinge point of the swing arm 431 and the connecting arm 433 moves to one side of the positioning ring 420 close to its central axis. At this time, the suction bladder 500 is also located on one side of the rotating sleeve 430 close to the central axis of the positioning ring 420, that is: on the side close to the pull rope 310. During the movement of the swing arm 431 from the first swing position to the second swing position, the discharge port of the suction bladder 500 can smoothly send the lubricant in the suction bladder 500 into the coating nozzle 600, and the coating nozzle 600 can smoothly coat the lubricant on the surface of the pull rope 310.

[0079] In this embodiment, with reference to the position state of the suction bladder 500 when the swing arm 431 is at the first swing position, in this state, the discharge ports of the suction bladder 500 are all located at the lower part of the suction bladder 500, so that the lubricant sucked into the suction bladder 500 can smoothly enter the discharge port.

[0080] It should be noted that when the swing arm 431 just starts to move from the second swing position to the first swing position, since the suction port of the suction bladder 500 has not yet cooperated with the notch 412, at this time, the suction bladder 500 will first suck in a part of air. After the suction port of the suction bladder 500 smoothly cooperates with the notch 412 of the reference ring 410, the lubricant can be smoothly sucked in.

[0081] During the movement of the swing arm 431 from the first swing position to the second swing position, the lubricant is extruded from the coating nozzle 600 and coated on the surface of the pull rope 310. Since there is still a certain amount of air sucked in the suction bladder 500, in the latter half of the process of discharging the lubricant, the air in the suction bladder 500 can fully blow out the lubricant in the coating nozzle 600. On the one hand, it reduces the residue of the lubricant in the coating nozzle 600 and the suction bladder 500, and on the other hand, it helps to blow the lubricant towards the pull rope 310.

[0082] When the swing arm 431 reaches the second swing position, the coating nozzle 600 completely moves to one side of the positioning ring 420 close to its central axis. In this embodiment, in this state, the coating nozzle 600 is in contact with the surface of the pull rope 310, which can further prevent the loss of the lubricant remaining at the edge of the mouth of the coating nozzle 600 and fully lubricate the pull rope 310.

[0083] When the swing arm 431 moves towards the first swing position, the coating nozzle 600 will be separated from the surface of the pull rope 310 again, which can effectively reduce the mechanical wear between the pull rope 310 and the coating nozzle 600.

[0084] In this embodiment, the rotation axis line of the swing arm 431 is perpendicular to the rotation axis line of the rotating sleeve 430, and the swing arm 431 is arranged perpendicular to its own rotation axis line.

[0085] One end of the swing arm 431 away from the rotating sleeve 430 is also fixedly connected with an extension arm 432, and the extension arm 432 is arranged perpendicular to the swing arm 431 and extends toward the side close to the positioning ring 420.

[0086] Both ends of the connecting arm 433 have bent portions 434 bent away from the side where the positioning ring 420 is located, and the connecting arm 433 is hinged to one end of the extension arm 432 away from the swing arm 431 through the bent portion 434.

[0087] Optionally, the rotation axis line of the bent portion 434 relative to the extension arm 432 intersects with the rotation axis line of the rotating sleeve 430, and is not limited thereto.

[0088] The bent portion 434 is fully attached to the extension arm 432 and is smoothed.

[0089] Optionally, each rotating sleeve 430 is provided with two swing arms 431, and the two swing arms 431 are respectively used to cooperate with the swing arms 431 of the rotating sleeves 430 on both sides of this rotating sleeve 430. Through this design, only one rotating sleeve 430 needs to be driven to synchronously drive all the rotating sleeves 430. Among them, each rotating sleeve 430 is only connected to one suction bladder 500, and only one swing arm 431 of each rotating sleeve 430 is connected to the extrusion portion of the suction bladder 500.

[0090] Furthermore, when the swing arm 431 is at the first swing position, the distance between the suction port and the positioning ring 420 is greater than the distance between the coating nozzle 600 and the positioning ring 420, so as to avoid the contact between the coating nozzle 600 and the inner wall of the reference ring 410 and avoid the loss of lubricant.

[0091] The suction bladder 500 includes: a first baffle 510, a second baffle 520, a suction pipe 530, a bladder body 540, and a discharge pipe (not shown in the figure).

[0092] The first baffle 510 is fixedly connected to the rotating sleeve 430. Optionally, the first baffle 510 is fixedly connected to the outer side wall of the rotating sleeve 430 and is arranged perpendicular to the rotation axis line of the rotating sleeve 430.

[0093] The second baffle 520 is fixedly connected to the swing arm 431. Optionally, the plane where the axis lines of the swing arm 431 and the extension arm 432 are located is parallel to the second baffle 520.

[0094] The bladder body 540 is connected between the first baffle 510 and the second baffle 520.

[0095] The suction pipe 530 is made of a rigid material. One end of the suction pipe 530 is fixedly connected to the outer sidewall of the rotating sleeve 430. One end of the suction pipe 530 near the rotating sleeve 430 is closed. The suction pipe 530 is arranged radially along the rotating sleeve 430. The other end of the suction pipe 530 penetrates through the bladder 540 and extends to the side of the bladder 540 away from the positioning ring 420. A sealing treatment is performed between the bladder 540 and the suction pipe 530.

[0096] A side port (not shown in the figure) is provided on the sidewall of the suction pipe 530. The side port is located inside the bladder 540 and is used to communicate the lumen of the suction pipe 530 with the bladder 540.

[0097] The mouth of the suction pipe 530 is the suction inlet of the suction bladder 500. The discharge port of the bladder 540 is the discharge port of the suction bladder 500. The discharge pipe communicates the discharge port of the bladder 540 with the coating nozzle 600. One-way valves are provided at the inlet of the suction pipe 530 and the outlet of the discharge pipe.

[0098] When the swing arm 431 moves between the first swing position and the second swing position, the first baffle 510 and the second baffle 520 jointly pull and squeeze the bladder 540 to achieve the suction and coating of the lubricant.

[0099] Through this design, the stability of the position of the suction inlet (suction pipe 530) of the suction bladder 500 can be effectively guaranteed, which is convenient for the suction bladder 500 to accurately cooperate with the notch 412. Thus, the notch 412 can be designed smaller to avoid accidental loss of the lubricant.

[0100] Optionally, the width of the notch 412 is adapted to the outer diameter of the suction pipe 530.

[0101] Optionally, the temperature detection mechanism can be arranged at the first limit ring 320. Correspondingly, the first limit ring 320 is made of a heat-conducting material. The temperature detection mechanism indirectly determines the situation of the pull rope 310 by detecting the temperature of the first limit ring 320.

[0102] It is only necessary to detect the temperature of the first limit ring 320, and it is not necessary to detect the temperature of the second limit ring 330. This is because the main friction occurs at the first limit ring 320, and the heat generated by friction at the second limit ring 330 is significantly lower than that at the first limit ring 320. Correspondingly, those of ordinary skill in the art can control the critical temperature of coating the lubricant by adjusting the specific value of the temperature threshold. It can be understood that if it is worried that the heat generated by friction at the second limit ring 330 affects the mechanical properties of the pull rope 310, the temperature threshold can be set relatively low so that the lubricant is coated at a relatively low temperature.

[0103] The lubrication mechanism 400 is also provided with a driver (not shown in the figure), and the driver is in transmission cooperation with the rotating sleeve 430. When the temperature detected by the temperature detection mechanism is greater than or equal to the temperature threshold, the data center controls the driver to drive the rotating sleeve 430, so as to coat the lubricant on the pulling rope 310.

[0104] Optionally, the annular inner cavity 411 extends along the axial direction of the reference ring 410 and penetrates through one end wall of the reference ring 410. The reference ring 410 is fitted with a mating ring 413, and the mating ring 413 is slidably fitted and slidably sealed in the annular inner cavity 411, and the mating ring 413 extends outside the reference ring 410.

[0105] The driver is also in transmission cooperation with the mating ring 413, so that when the driver drives the rotating sleeve 430, it can also drive the mating ring 413 to move towards the inside of the reference ring 410, thereby pushing the lubricant in the annular inner cavity 411 towards the notch 412, so as to facilitate the suction bladder 500 to suck.

[0106] Among them, by adjusting the transmission ratios between the driver and the rotating sleeve 430, and between the driver and the mating ring 413, the pushing speed of the mating ring 413 for the lubricant can meet the suction requirements of the suction bladder 500, and at the same time prevent the lubricant from being directly pushed out from the notch 412.

[0107] Optionally, as Figure 9 shown, on the outer wall of the rotating sleeve 430, a first convex ring 710 and a second convex ring 720 can be provided in the area between the first baffle 510 and the hinge point of the swing arm 431 of the rotating sleeve 430 that is not connected to the suction bladder 500. When the swing arm 431 moves between the first swing position and the second swing position, neither the swing arm 431 nor the extension arm 432 will move to the position of the first convex ring 710 and the second convex ring 720.

[0108] The first convex ring 710 is in rotational cooperation with the rotating sleeve 430, and the first convex rings 710 of multiple rotating sleeves 430 can be fixedly connected to the inner ring wall of the reference ring 410, so as to realize the installation and positioning of the positioning ring 420.

[0109] The second convex ring 720 is fixedly fitted with the rotating sleeve 430, and the driver can drive the rotating sleeve 430 by being in transmission cooperation with the second convex ring 720.

[0110] The lubrication mechanism 400 coats the lubricant on the pulling rope 310 only when necessary, which can effectively reduce the amount of lubricant used and is more environmentally friendly.

[0111] In addition, due to the reasonable control of the amount of lubricant used, it can effectively prevent the excessive adhesion of the lubricant on the surface of the pulling rope 310. During the experiment, the probability of adhesion of particulate impurities on the surface of the pulling rope 310 is greatly reduced, the probability of damage to other components in the first connecting seat 100 is reduced, and the repeatability is improved.

[0112] On this basis, the probability that the drawstring 310 throws out the lubricant during the retracting and extending process is also reduced, avoiding the surfaces of other components in the first connecting seat 100 being covered by the lubricant.

[0113] It should be noted that the interval distance between the first limiting ring 320, the lubricating mechanism 400 and the second limiting ring 330 can be adjusted as required. For example, by setting the interval distance between the first limiting ring 320, the lubricating mechanism 400 and the second limiting ring 330 to be smaller, the lubricant coated on the drawstring 310 can reach the first limiting ring 320 and the second limiting ring 330 faster, which is more conducive to the full play of the lubricant. Those of ordinary skill in the art can adjust it as required.

[0114] In summary, the tunnel seismic performance detection system provided by the embodiments of the present invention can better show the actual performance of the mechanical components in the tunnel model during the vibration process, facilitating a more accurate grasp of the actual performance of each mechanical component in ensuring the seismic performance of the tunnel model, and can provide a reference for the targeted optimization of the tunnel scheme.

[0115] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tunnel seismic performance detection system, characterized in that: include: A first connecting seat, a second connecting seat, a winding mechanism, a draw rope, a first limiting ring, a second limiting ring, a lubrication mechanism, a temperature detection mechanism and a data center; The first connection seat is used to be fixedly connected to a mechanical component of the tunnel model, and the second connection seat is used to be fixedly connected to another mechanical component of the tunnel model; The first limiting ring, the second limiting ring and the lubricating mechanism are all fixedly mounted on the first connecting seat, the first limiting ring and the second limiting ring are coaxially arranged with a spacing, and the lubricating mechanism is arranged between the first limiting ring and the second limiting ring; The reeling mechanism is installed on the first connecting seat, one end of the pull rope is reeled on the reeling mechanism, and the other end of the pull rope passes through the second limiting ring and the first limiting ring in sequence and is fixedly connected to the second connecting seat; The reeling mechanism has a metering module for determining the release length of the pull rope, and the reeling mechanism is also provided with a force-applying component for continuously applying tension to the pull rope, so that the pull rope is always in a taut state; The temperature detection mechanism is used to detect the temperature of the pull rope; The metering module and the temperature detection mechanism are both electrically connected to the data center; the data center is used to determine the relative motion relationship between the various mechanical components of the tunnel model during the vibration process according to the release length; the data center is also used to control the lubrication mechanism to apply lubricant to the pull rope when the temperature detected by the temperature detection mechanism is greater than or equal to the temperature threshold.

2. The tunnel seismic performance detection system according to claim 1, characterized in that: The lubrication mechanism comprises: a reference ring, a positioning ring, a rotating sleeve, a swing arm and a connecting arm; The reference ring has an annular inner cavity, the lubricant is contained in the annular inner cavity, and the inner ring wall of the reference ring is provided with a notch communicating with the annular inner cavity; The positioning ring is arranged inside the reference ring and coaxially with the reference ring, and the outer diameter of the positioning ring is smaller than the inner diameter of the reference ring; The rotating sleeve is rotatably sleeved on the positioning ring, the rotating axis of the rotating sleeve is arranged perpendicular to the central axis of the positioning ring, and a plurality of the rotating sleeves are arranged at intervals along the circumference of the positioning ring; One end of the swing arm is hinged to the rotating sleeve, and along the circumference of the positioning ring, the connecting arm is connected between the swing arms of two adjacent rotating sleeves, and the end of the connecting arm is hinged to one end of the swing arm away from the rotating sleeve, so that when one rotating sleeve rotates, the rotating sleeve can drive the other rotating sleeve to rotate synchronously through the swing arm and the connecting arm; Wherein, the swing arm has a first swing point and a second swing point; when the hinge point between the swing arm and the connecting arm moves to the side of the positioning ring away from its central axis, the two swing arms connected to the same connecting arm both swing to the opposite side, and the swing arm is located at the first swing point; when the hinge point between the swing arm and the connecting arm moves to the side of the positioning ring close to its central axis, the two swing arms connected to the same connecting arm both swing to the opposite side, and the swing arm is located at the second swing point; The outer side wall of the rotating sleeve is fixedly connected with a suction bag, and the swing arm is connected with the extrusion part of the suction bag; the suction bag has a suction port and a discharge port, and both the suction port and the discharge port are provided with a one-way valve; A coating nozzle is fixedly connected to one side of the connecting arm away from the positioning ring, and the discharge port of the suction bag is connected to the inlet of the coating nozzle; The drawstring passes through the positioning ring; when the swing arm is located at the first swing point, the suction port of the suction bag extends to the notch; when the swing arm is located at the second swing point, the coating nozzle faces the drawstring; When the temperature detected by the temperature detection mechanism is greater than or equal to the temperature threshold, the data center is used to control the rotation of the rotating sleeve to make the swing arm move between the first swing point and the second swing point.

3. The tunnel seismic performance detection system according to claim 2, characterized in that: The rotation axis of the swing arm is perpendicular to the rotation axis of the rotating sleeve, and the swing arm is arranged perpendicular to the rotation axis; An extension arm is fixedly connected to one end of the swing arm away from the rotating sleeve, and the extension arm is arranged perpendicular to the swing arm and extends toward a side close to the positioning ring; Both ends of the connecting arm have a bending portion bent toward a side away from the positioning ring, and the bending portion is hinged to an end of the extension arm away from the swing arm.

4. The tunnel seismic performance detection system according to claim 2, characterized in that: When the swing arm is located at the first swing point, the distance between the suction port and the positioning ring is greater than the distance between the coating nozzle and the positioning ring.

5. The tunnel seismic performance detection system according to claim 2, characterized in that: The suction bag comprises: a first baffle, a second baffle, a suction pipe, a bag body and a discharge pipe; The first baffle is fixedly connected to the rotating sleeve, the second baffle is fixedly connected to the swing arm, and the capsule is connected between the first baffle and the second baffle; The suction pipe is made of a hard material, one end of which is fixedly connected to the rotating sleeve, and the other end of which passes through the capsule and extends to a side of the capsule away from the positioning ring, and a sealing process is performed between the capsule and the suction pipe; The side wall of the suction pipe is provided with a side opening, and the side opening is located in the capsule; the discharge pipe connects the capsule and the coating nozzle; and the one-way valve is arranged at the inlet of the suction pipe and the outlet of the discharge pipe.

6. The tunnel seismic performance detection system according to claim 5, characterized in that: The width of the notch is matched to the outer diameter of the suction pipe.

7. The tunnel seismic performance detection system according to claim 1, characterized in that: The drawstring is a low elasticity rope.

8. The tunnel seismic performance detection system according to claim 1, characterized in that: The inner diameter of the first limiting ring is matched with the outer diameter of the pull rope.

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