A dynamic performance detection and adjustment device for a floating slab isolator

Abstract

The present invention relates to the technical field of dynamic detection of floating slabs, and particularly to a device for detecting and adjusting the dynamic performance of floating slab vibration isolators. It includes symmetrically distributed mounting seats, and the symmetrically distributed mounting seats are jointly fixedly connected with a connecting plate. The mounting seat is rotatably connected with a swing rod, and a first elastic member is installed between the two. The connecting plate is fixedly connected with a balance sealing tube. The balance sealing tube is slidably connected with a sliding plug and symmetrically distributed transmission rods. The sliding plug is located between the symmetrically distributed transmission rods. The transmission rod is slidably connected with the sliding plug, and a second elastic member is installed between the two. A pressure receiving block is fixedly connected to the side of the transmission rod away from the second elastic member. In the present invention, the pressures on both sides of the floating slab are transmitted to the sliding plug through two transmission rods, and then, according to the position of the sliding plug in the balance sealing tube, the balance state of the floating slab under the current use state is judged, thereby increasing the means for judging the state of the steel spring in the floating slab.

Description

Technical Field

[0001] The present invention relates to the technical field of floating slab dynamic detection, and particularly to a device for detecting and adjusting the dynamic performance of floating slab vibration isolators. Background Art

[0002] As a benchmark technology for vibration reduction and noise reduction in urban rail transit, the steel spring floating slab track has become the preferred solution for subways to cross sensitive areas due to its high-efficiency vibration isolation performance (20dB - 40dB noise reduction), long service life, and flexible adaptability. Among them, precast floating slabs have advantages such as high construction efficiency, stable and controllable quality, less on-site interference, low cost, strong adaptability, and convenient long-term maintenance. Compared with cast-in-place slabs, their proportion is continuously expanding, and their proportion in newly built lines has exceeded 70%. To ensure track smoothness, adjacent floating slabs are connected by shared bearing vibration isolators. The shared bearing vibration isolators integrate cylindrical vibration isolators and support structures, which can not only disperse the load but also maintain the continuity of the line.

[0003] However, since the floating slab adopts a hyperstatic structure design (i.e., multi-point collaborative load-bearing), when some steel springs age, corrode, or break due to accidental situations such as water seepage erosion, although the floating slab can still maintain a basic level during train operation due to the compensation effect of the remaining springs and bearings, the supporting force of the floating slab on the side with the aged or corroded and broken steel spring on the rail and the subway will be less than the supporting force provided by the steel springs on the other side of the floating slab. As a result, under the dynamic load of the train, the unbalanced floating slab will tilt slightly (although the existing spring vibration isolators under the floating slab have a certain ability to limit the deflection of the floating slab, to reduce the wear of its guiding part, there is usually a gap between the guiding part and the floating slab, allowing the floating slab to make a slight offset or deflection to prevent large-distance offsets of the floating slab). In severe cases, it will directly exacerbate the geometric deformation of the track, threatening operation safety and causing potential safety hazards during subway operation.

[0004] Existing methods for inspecting steel spring floating slab tracks include daily inspection methods and regular inspection methods. Both of the above methods need to be carried out during train downtime. The daily inspection method only observes the appearance of the steel spring vibration isolators in a spot-check manner to judge whether the steel springs are corroded or significantly deformed, etc., and cannot detect hidden damages of the steel springs. In the regular inspection method, only the height error of the floating slab is detected to judge whether the steel spring vibration isolators under the floating slab need to be replaced. However, because the floating slab is always in a static state, even if individual steel springs age and are damaged, during the period when the train is not running, the floating slab will not have obvious displacement under the support of other steel spring vibration isolators, making it difficult for existing detection means to timely discover the problem of individual steel spring vibration isolators failing, and it is difficult to completely eliminate potential safety hazards. Summary of the Invention

[0005] In order to overcome the drawback that when the floating slab is in a static state, it is difficult to detect the state of the steel spring below it, resulting in potential safety hazards during the operation of the subway, the present invention provides a device for detecting and adjusting the dynamic performance of a floating slab vibration isolator.

[0006] The technical solution is as follows: A device for detecting the dynamic performance of a floating slab vibration isolator includes symmetrically distributed mounting seats. The symmetrically distributed mounting seats are jointly fixedly connected with a connecting plate. The mounting seat is rotatably connected with a swing rod, and a first elastic member is installed between the two. The connecting plate is fixedly connected with a balanced seal tube. The balanced seal tube is slidably connected with a sliding plug and symmetrically distributed transmission rods. The sliding plug is located between the symmetrically distributed transmission rods. The transmission rod is slidably connected with the sliding plug, and a second elastic member is installed between the two. The second elastic member and the sliding plug are both located inside the balanced seal tube. A pressure block is fixedly connected to the side of the transmission rod away from the second elastic member. The swing rod makes the pressure block move by squeezing the adjacent pressure block. A recording mechanism for recording the displacement state of the sliding plug is arranged inside the balanced seal tube.

[0007] Preferably, the swing rod has a support cushion block and an extrusion convex column. The support cushion block and the extrusion convex column are respectively fixedly connected to both ends of the swing rod. The extrusion convex column is in contact with the pressure block.

[0008] Preferably, the side of the pressure block close to the extrusion convex column is provided with a curved surface section, an inclined surface section, and a horizontal section. The curved surface section, the inclined surface section, and the horizontal section are all used to contact the extrusion convex column.

[0009] Preferably, the recording mechanism includes symmetrically distributed plugging members. The plugging members are slidably connected to the balanced seal tube. The symmetrically distributed plugging members are respectively located on both sides of the sliding plug. Centrally symmetrically distributed pressure sensors are fixedly connected inside the balanced seal tube. A third elastic member is installed between the plugging member and the adjacent pressure sensor. A data processing module is arranged on the connecting plate. The pressure sensor is used to detect the elastic force of the adjacent third elastic member. The pressure sensor is electrically connected to the data processing module. The data processing module converts the numerical value detected by the pressure sensor and the number of times the pressure sensor is triggered into the moving distance and the number of movements of the plugging member.

[0010] Preferably, symmetrically distributed first flow holes and symmetrically distributed second flow holes are arranged on the sliding plug. Check valves are arranged in the symmetrically distributed second flow holes. The communication directions of the check valves in the symmetrically distributed second flow holes are opposite. The plugging member is used to block the adjacent second flow holes.

[0011] Preferably, the flow area of the first flow hole is smaller than the flow area of the second flow hole.

[0012] Preferably, the sliding plug is installed with symmetrically distributed first magnets, the plugging member is installed with second magnets, and the second magnets are magnetically attracted to the adjacent first magnets.

[0013] Preferably, symmetrically distributed adjusting knobs are rotatably connected to the outside of the balance sealing tube. The adjusting knobs are threadedly connected to adjusting plates. The plugging member is in limiting sliding connection with the adjusting plates, and the adjusting plates are used to adjust the position of the plugging member.

[0014] Preferably, the drive rod is marked with scales, and symmetrically distributed indicating rods are fixedly connected to the balance sealing tube. The indicating rods identify the positions of the adjacent drive rods by aligning with the scales on the adjacent drive rods.

[0015] A floating slab vibration isolator adjusting device is installed on the above-mentioned floating slab vibration isolator dynamic performance detection device. It includes symmetrically distributed support seats. The support seats are fixedly connected to the adjacent mounting seats. The support seats are fixedly connected with symmetrically distributed fixed inclined blocks. The support seats are slidably connected with symmetrically distributed oil injection pipes. The oil injection pipes are slidably connected with sliding sliders. An oil injection cavity is arranged in the sliding sliders. The oil injection pipes are communicated with the adjacent oil injection cavities. Oil is injected into the oil injection cavities through the oil injection pipes. The fixed inclined blocks have inclined surfaces. The sliding sliders slide along the inclined surfaces of the adjacent fixed inclined blocks to adjust the relative positions between the sliding sliders and the adjacent fixed inclined blocks. The sliding sliders are fixedly connected with damping rubber blocks.

[0016] The beneficial effects of the present invention are as follows: The present invention transfers the pressures on both sides of the floating slab to the sliding plug through two drive rods, and then judges the balance state of the floating slab under the current use state according to the position of the sliding plug in the balance sealing tube. If the elastic forces provided by the steel springs on both sides of the floating slab no longer maintain the balance state, the sliding plug will deviate to the side in the balance sealing tube away from the aging, rusting or breaking of the steel spring. According to the above principle, a means for judging the state of the steel spring in the floating slab (such as whether aging, rusting or breaking occurs) is added, and the steel spring is replaced in time to reduce the potential safety hazards during railway operation.

[0017] In the present invention, by providing a first flow hole and a second flow hole, the resistance when the sliding plug moves in different directions is adjusted. If the steel springs on both sides of the floating plate are not damaged and only the floating plate undergoes reciprocating tilting fluctuations, the sliding plug does not have enough time to squeeze the two plugging members to move a long distance and will be affected by the change of direction of the floating plate and move in the reverse direction. When the steel springs on both sides of the floating plate are aged and corroded, the floating plate always tilts in one direction. Therefore, the sliding plug has sufficient time to move in one direction, and the moving distance of the sliding plug in one direction is greater than the moving distance in one direction during the above-mentioned reciprocating movement. Through the difference between the two different situations, it is possible to more accurately determine whether the steel spring is aged or damaged, thereby increasing the accuracy of detection.

[0018] The present invention adopts an independent adjustment mechanism to separately adjust the height of the damping rubber blocks. Therefore, compared with the existing device, it can better adapt to the thickness of different floating plates, making the connection between the two floating plates smoother. And by adjusting the pressure in the oil injection cavities at different positions to the same value, the load force between all the damping rubber blocks and the floating plate can be kept balanced. Compared with the existing method of separately detecting after adjustment, it not only simplifies the steps of adjusting the height of the damping rubber blocks, but also ensures that the force on the entire floating plate is more balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is a three-dimensional structural schematic diagram of the swing rod and the balance seal tube of the present invention;

[0021] Figure 3 is a cross-sectional view of the balance seal tube of the present invention;

[0022] Figure 4 is an exploded view of the balance seal tube, the sliding plug and the plugging member of the present invention;

[0023] Figure 5 is a cross-sectional view of the sliding plug and the transmission rod of the present invention;

[0024] Figure 6 is a three-dimensional structural schematic diagram of the swing rod, the transmission rod and the pressure-receiving block of the present invention;

[0025] Figure 7 is a three-dimensional structural schematic diagram of the adjustment knob and the adjustment plate of the present invention;

[0026] Figure 8 is a cross-sectional view of the sliding slider of the present invention.

[0027] Marks in the attached drawings: 1: mounting base, 2: connecting plate, 3: swing rod, 31: first elastic member, 32: support cushion block, 33: extrusion convex column, 4: balance sealing tube, 5: sliding plug, 51: first flow hole, 52: second flow hole, 53: one-way valve, 54: first magnet, 6: transmission rod, 61: second elastic member, 7: pressure receiving block, 71: curved surface section, 72: inclined surface section, 73: horizontal section, 8: plugging member, 81: pressure sensor, 82: third elastic member, 83: second magnet, 84: third flow hole, 9: adjusting knob, 91: adjusting plate, 10: indicating rod, 11: support seat, 13: fixed inclined block, 14: oil injection pipe, 15: sliding slider, 151: oil injection cavity, 16: damping rubber block. Detailed implementation mode

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0029] Embodiment 1

[0030] Disclosed in this embodiment is a dynamic performance detection device for a floating slab vibration isolator, which is used to detect the usage status of the steel springs on both sides according to the comparison of the elastic forces of the steel springs on both sides of the floating slab when the floating slab is stressed.

[0031] Refer to Figures 1 - 5 , this dynamic performance detection device includes two mounting bases 1 symmetrically distributed front and back. In this embodiment, support frames for supporting the edges of adjacent floating slabs are provided on both mounting bases 1, and both mounting bases 1 are fixed to the ground by bolts (refer to Figure 1 ), the symmetrically distributed mounting bases 1 are jointly fixedly connected by bolts to a connecting plate 2, the right side of the mounting base 1 is rotatably connected to a swing rod 3, and a first elastic member 31 is installed between the two, the first elastic member 31 is a torsion spring, the right side of the connecting plate 2 is fixedly connected to a balance sealing tube 4, and a sliding plug 5 is slidably connected in the balance sealing tube 4 (refer to Figure 3 and Figure 4 ), the balance sealing tube 4 is slidably connected to two transmission rods 6 symmetrically distributed front and back, the sliding plug 5 is located between the symmetrically distributed transmission rods 6, the transmission rod 6 is slidably connected to the sliding plug 5, and a second elastic member 61 is installed between the two, the second elastic member 61 is a spring, the second elastic member 61 is located in the balance sealing tube 4, and a pressure receiving block 7 is fixedly connected to the side of the transmission rod 6 away from the adjacent second elastic member 61. A recording mechanism for recording the displacement state of the sliding plug 5 is provided in the balance sealing tube 4.

[0032] The above settings can achieve the following: The swing rod 3 is driven by the up-and-down displacement of the adjacent side of the floating slab, and by squeezing the adjacent compression block 7, the adjacent compression block 7 is caused to move horizontally. The two compression blocks 7 respectively drive the adjacent transmission rods 6 to move towards each other. The two transmission rods 6 respectively squeeze the sliding plug 5 through the adjacent second elastic members 61. At this time, if the compression amounts of the steel springs on both sides are the same and equal elastic forces are provided to the rails, the downward displacement distances on both sides of the floating slab are the same, the squeezing forces applied by the two second elastic members 61 to the sliding plug 5 are the same, and the sliding plug 5 maintains its initial position in the balance seal tube 4 without moving. When the steel spring on one side of the floating slab is aged or rusted and broken, the elastic forces provided by the steel springs on both sides of the floating slab no longer maintain a balanced state, and the sliding plug 5 deflects towards the side of the balance seal tube 4 away from the aged or rusted and broken steel spring.

[0033] Refer to Figure 2 、 Figure 3 and Figure 6 , the swing rod 3 has a support pad 32 and an extrusion convex column 33. The support pad 32 and the extrusion convex column 33 are respectively fixed at both ends of the swing rod 3. The support pad 32 is a detachable and replaceable structure. The support pad 32 abuts against the floating slab, and the extrusion convex column 33 abuts against the compression block 7.

[0034] The above settings can achieve the following: The swing rod 3 can keep in a state of abutting against both the compression block 7 and the floating slab simultaneously by replacing different support pads 32.

[0035] Refer to Figure 6 , on the side of the compression block 7 close to the extrusion convex column 33, there are a curved surface section 71, an inclined surface section 72, and a horizontal section 73. The curved surface section 71, the inclined surface section 72, and the horizontal section 73 are all used to contact the extrusion convex column 33. In the initial state, the extrusion convex column 33 contacts the curved surface section 71. The inclined surface section 72 is used to connect the curved surface section 71 and the horizontal section 73, and the horizontal section 73 is a horizontal plane.

[0036] The above settings can achieve the following: The curved surface section 71 abuts against the extrusion convex column 33 initially, which is used to reduce the influence of vibration on the floating slab and the moving distance of the compression block 7 squeezed by the swing rod 3. The inclined surface section 72 is used to enable the extrusion convex column 33 to stably squeeze and push the compression block 7 to displace, while the horizontal section 73 is used to limit the extrusion convex column 33 when it swings to the limit position.

[0037] Refer to Figures 3 - 7 , the recording mechanism includes two blocking members 8 distributed symmetrically about the center (from the left-to-right perspective, the center of symmetry is located at the centroid of the sliding plug 5). In the initial state, both blocking members 8 are in contact with the sliding plug 5. The blocking members 8 are slidably connected to the balance seal tube 4. The symmetrically distributed blocking members 8 are respectively located on both sides of the sliding plug 5. Pressure sensors 81 distributed symmetrically about the center are fixed in the balance seal tube 4 (refer to Figure 5 and Figure 6), a third elastic member 82 is installed between the plugging member 8 and the adjacent pressure sensor 81. A data processing module (not shown in the figure, an existing device powered by a battery and having communication transmission methods such as Bluetooth / Zigbee) is provided on the connecting plate 2. The pressure sensor 81 is used to detect the number of times the adjacent plugging member 8 moves. The data processing module integrates common data processing functions such as data comparison, data storage, and data conversion, and is used to assist the staff in collecting and processing various information on the operating state of the floating slab. The data processing module is used to convert the value detected by the pressure sensor 81 and the number of times the pressure sensor 81 is triggered into the moving distance and the number of times the plugging member 8 moves, and assist the staff in judging the data.

[0038] The above settings can achieve: when the sliding plug 5 slides in the front-back direction, taking the forward sliding as an example, the sliding plug 5 contacts the plugging member 8 on the front side and squeezes the plugging member 8 on the front side. At this time, the third elastic member 82 on the plugging member 8 is compressed and stores energy. The pressure sensor 81 judges the displacement distance of the sliding plug 5 by detecting the elastic force on the third elastic member 82, and transmits the current state of the sliding plug 5 into the data processing module to assist the staff in collecting the dynamic balance state of the floating slab when the train is running.

[0039] The working process of the dynamic performance detection device for the floating slab isolator in this embodiment is as follows:

[0040] Installation process:

[0041] The staff installs the two mounting seats 1 at the gap between the two floating slabs, and makes the support frames on the two mounting seats 1 abut against the floating slabs. Subsequently, the staff adjusts and replaces the support pads 32 to keep the support pads 32 in contact with the floating slabs and in a state where the extrusion convex columns 33 are in contact with the curved surface section 71.

[0042] Working process:

[0043] When the subway passes over the floating slab, the floating slab moves up and down reciprocally due to gravity and vibration. Taking the front swing rod 3 as an example at this time, the support pad 32 on the swing rod 3 is squeezed by the floating slab and moves downward, causing the swing rod 3 to rotate. The first elastic member 31 twists and stores energy. The extrusion convex column 33 on the swing rod 3 moves along the curved surface section 71 and the inclined surface section 72 of the pressure receiving block 7 in sequence (when the steel spring is in good condition, the extrusion convex column 33 will not contact the horizontal section 73), and pushes the pressure receiving block 7 and the transmission rod 6 backward. The transmission rod 6 squeezes the sliding plug 5 backward through the second elastic member 61, and the second elastic member 61 is compressed and stores energy.

[0044] If the steel springs on both the front and rear sides of the floating slab are in good condition, then the floating slab has two motion states at this time. One is that both the front and rear sides move up and down simultaneously. At this time, the sliding plug 5 is subjected to equal extrusion forces from the second elastic members 61 on both sides, so the sliding plug 5 does not move. The other motion state is that because the forces on the front and rear sides of the floating slab are different, the forces on the steel springs on the front and rear sides of the floating slab deviate, causing the floating slab to be in a reciprocating undulating state in the front-back direction (this undulation is slight and will not affect the stable operation of the train). At this time, if the floating slab tilts forward, the extrusion force of the sliding plug 5 received from the second elastic member 61 on the front side is greater than the extrusion force received from the second elastic member 61 on the rear side, then the sliding plug 5 will move backward. The sliding plug 5 squeezes the rear sealing member 8 to move backward together, compressing and storing energy in the rear third elastic member 82. The pressure sensor 81 detects the signal of the third elastic member 82, records the elastic force change value and time of the rear third elastic member 82, and uploads these two pieces of data to the data processing module.

[0045] When the floating slab changes from tilting forward to tilting backward during operation, the extrusion force of the sliding plug 5 received from the second elastic member 61 on the rear side is greater than the extrusion force received from the second elastic member 61 on the front side. The sliding plug 5 slides forward, squeezes the front sealing member 8 to move together, and compresses and stores energy in the front third elastic member 82. The front pressure sensor 81 detects the signal of the adjacent third elastic member 82, records the elastic force change value and time of the front third elastic member 82, and uploads these two pieces of data to the data processing module.

[0046] In the above process, even if the floating slab tilts alternately back and forth, because the steel springs on both the front and rear sides of the floating slab are in good condition, when the floating slab tilts forward, it will inevitably cause the elastic force of the front steel spring to increase, so that the steel spring tilts backward. Therefore, it is difficult for the data processing module to collect the values of the pressure sensors 81 on both the front and rear sides (that is, the compression distances and compression times of the third elastic members 82 on both the front and rear sides) to show a large difference.

[0047] If the steel springs on the floating plate are aged and corroded, and the aging and corrosion of the steel springs on one side is greater than that of the steel springs on the other side (if serious aging and corrosion occur on both sides at the same time, the floating plate will no longer be in a suspended state, but will move down to a position close to the ground or in contact with the ground. At this time, the staff can easily find this phenomenon and perform maintenance, so it is not within the scope of discussion of this embodiment), then the floating plate will no longer be in a state of moving downward in a horizontal state at the front and rear sides. Even if the floating plate is not subjected to force, it is still in a nearly horizontal position, and during the passage of the subway, this section of the floating plate will always It is tilted toward the side where the steel spring is severely aged and corroded (because when the steel spring is severely aged and corroded, it is difficult to provide an upward force for the floating plate). Therefore, if part of the steel spring on the front side of the floating plate is aged and corroded, the floating plate will always tilt toward the front side, causing the sliding plug 5 to always be pushed backward by the second elastic member 61 on the front side. In the data collected by the data processing module, the time duration when the pressure sensor 81 on the rear side is triggered is significantly greater than the time duration when the pressure sensor 81 on the front side is triggered, and the maximum elastic force recorded on the third elastic member 82 on the rear side is also significantly greater than the maximum elastic force recorded on the third elastic member 82 on the front side.

[0048] Data collection and maintenance process:

[0049] During the maintenance process, the staff connects to the Bluetooth on the data processing modules in each device through mobile terminals, collects and analyzes data, and determines whether the steel springs in the floating plates are aged, rusted, or broken based on the dynamic balance of each floating plate. This reduces the difficulty of detecting the steel springs in the floating plates, allowing the staff to repair and replace aged and damaged steel springs in a timely manner, reducing safety hazards during railway operation.

[0050] Example 2

[0051] The present embodiment discloses a floating plate isolator dynamic performance detection device, which, on the basis of the first embodiment, further has the function of adjusting the operating state of the sliding plug 5 to make it easier to reset, thereby increasing the accuracy of the present device.

[0052] Reference Figure 4 , Figure 5 and Figure 7 The sliding plug 5 and the sealing member 8 are both sealed and slidably connected with the balance sealing tube 4. The balance sealing tube 4 is filled with liquid (such as hydraulic oil). The sliding plug 5 is provided with two first flow holes 51 symmetrically distributed up and down and four second flow holes 52 symmetrically distributed up and down (refer to Figure 4), a third flow hole 84 is provided on the plugging member 8, and the third flow hole 84 communicates with the adjacent first flow hole 51, so that the plugging member 8 does not plug the adjacent first flow hole 51. A one-way valve 53 is provided in the second flow hole 52. The two one-way valves 53 on the upper side correspond to the plugging member 8 at the rear side, and only allow the liquid to flow from the rear to the front. The two one-way valves 53 on the lower side correspond to the plugging member 8 at the front side, and only allow the liquid to flow from the front to the rear. The plugging member 8 is used to plug two adjacent second flow holes 52.

[0053] The above settings can achieve the following: When the floating slab starts to reciprocate back and forth due to the force deviation of the steel springs on its front and rear sides, when the floating slab tilts forward during the reciprocating process, the pressure of the second elastic member 61 on the front side of the sliding plug 5 is greater than the pressure of the second elastic member 61 on its rear side. The sliding plug 5 moves from back to front, and the sliding plug 5 drives the rear sealing member 8 to move together. The upper one-way valve 53 is in a blocked state. At this time, the liquid can only flow forward through the two first flow holes 51. The resistance of the sliding plug 5 moving backward increases. When the tilting state of the floating slab changes from tilting forward to tilting backward, the pressure of the second elastic member 61 on the rear side of the sliding plug 5 gradually increases to be greater than the pressure of the second elastic member 61 on its front side. The sliding plug 5 and the rear sealing member 8 move forward together to reset. The liquid can flow from front to back through the two first flow holes 51 and the two lower one-way valves 53 together. The resistance of the sliding plug 5 moving decreases, enabling the sliding plug 5 and the sealing member 8 to quickly reset forward. When the sliding plug 5 is fully reset, the sliding plug 5 moves forward and pushes the front sealing member 8 to move forward together. Subsequently, when the state of the floating slab changes again, when the sliding plug 5 is pushed by the second elastic member 61 on the front side and moves from front to back to reset, the resistance of the sliding plug 5 also follows the principle of first increasing and then decreasing. During the above process, if the steel springs on both sides of the floating slab are not damaged, when the floating slab tilts back and forth, the sliding plug 5 does not have enough time to squeeze the front or rear sealing member 8 to move a long distance, and it will be affected by the change of direction of the floating slab and move in the reverse direction. When the aging and rusting degree of the steel spring on one side of the floating slab is greater than that of the steel spring on the other side, because the floating slab always tilts in one direction. If the aging and rusting degrees of the two steel springs are similar, although the sliding plug 5 will move alternately to both sides, the residence time on one side will increase significantly. When the aging and rusting degree difference between the two steel springs is large, because the floating slab only tilts to the side with the severely aged and rusted steel spring at this time, the sliding plug 5 has sufficient time to move in one direction. The moving distance of the sliding plug 5 in one direction is greater than the moving distance in one direction during the above reciprocating movement, and the number of times the sliding plug 5 moves in one direction will also increase significantly. By the change of the moving distance of the sliding plug 5 in the above two different situations, the state of aging or rusting of the steel spring can be more accurately judged, and the movement state of the floating slab in the above situation can be distinguished from the movement state of the floating slab under the normal state of the steel spring, thereby increasing the reliability of the data and the accuracy of the detection.

[0054] Refer to Figure 5 , the flow area of the first flow hole 51 is smaller than the flow area of the second flow hole 52.

[0055] Refer to Figure 4 and Figure 5, the sliding plug 5 is installed with four first magnets 54 symmetrically distributed up and down, the plugging member 8 is installed with second magnets 83 corresponding to the adjacent first magnets 54, the second magnets 83 and the adjacent first magnets 54 are magnetically attracted to each other, and the elastic force of the third elastic member 82 is much smaller than the elastic force of the second elastic member 61, thereby reducing the influence of the elastic force of the third elastic member 82 itself on the movement of the sliding plug 5 pushed by the two second elastic members 61.

[0056] The above settings can achieve: when the plugging member 8 plugs the adjacent second flow holes 52, the second magnets 83 and the adjacent first magnets 54 are magnetically attracted to each other. At this time, the second magnets 83 and the adjacent first magnets 54 provide a force to maintain the tight fit between the plugging member 8 and the sliding plug 5, reducing the probability that the plugging member 8 is disengaged from plugging the sliding plug 5 due to vibration during the common movement of the sliding plug 5 and the plugging member 8 because the elastic force of the third elastic member 82 is too small.

[0057] Refer to Figure 4 , Figure 5 and Figure 7 , two adjusting knobs 9 are rotatably connected to the outside of the balance sealing tube 4 and symmetrically distributed front and back. The adjusting knob 9 is threadedly connected with an adjusting plate 91, and the plugging member 8 is in limiting sliding connection with the adjacent adjusting plate 91 (refer to Figure 5 and Figure 7 ).

[0058] The above settings can achieve: the staff rotates the adjusting knob 9 to drive the adjusting plate 91 to move back and forth, and the adjusting plate 91 drives the adjacent plugging member 8 to move back and forth, thereby adjusting the initial position of the plugging member 8, increasing the distance between a certain side of the plugging member 8 and the sliding plug 5, and thus increasing the difficulty for the sliding plug 5 to contact the plugging member 8 on that side (that is, the sliding plug 5 needs to move a greater distance to contact the plugging member 8). The above adjustment process is used to reduce the influence of the fact that when the floating plate is used to lay the inclined turning section of the subway, the subway tilts to one side during turning and the pressure of the steel spring on one side is always greater than that on the other side on the device. By increasing the distance between a certain side of the plugging member 8 and the sliding plug 5, the probability of the front and back plugging members 8 contacting the sliding plug 5 is relatively average, thereby increasing the reliability of the data collected by the device.

[0059] Refer to Figure 4 and Figure 5 , the drive rod 6 is marked with scales, and the balance sealing tube 4 is fixedly connected with symmetrically distributed indicating rods 10, and the indicating rods 10 are used to mark the position of the current drive rod 6.

[0060] The above arrangement can achieve: the staff can mark the initial position of the transmission rod 6 and observe whether the position of the transmission rod 6 changes during maintenance, so as to intuitively judge the state of the steel spring supporting the suspension board, and thereby judge the value of the accumulated error of the device during the maintenance interval, so as to adjust and replace the device in time, thereby increasing the reliability of the data collected by the device.

[0061] Example 3

[0062] The present embodiment discloses a floating plate isolator adjustment device, which is used to replace the support frame in Embodiment 1. On the basis of Embodiment 1, the floating plate isolator adjustment device also has the function of supporting two different floating plates.

[0063] Reference Figures 1 - 3 and Figure 8 A floating plate isolator adjustment device includes two support seats 11 symmetrically distributed front and back, the two support seats 11 are respectively fixed to adjacent mounting seats 1, the support seats 11 are fixed with two fixed tilting blocks 13 symmetrically distributed left and right, the support seats 11 are slidably connected with symmetrically distributed oil injection pipes 14 in the up and down directions, the oil injection pipes 14 are slidably connected with sliding blocks 15, the fixed tilting blocks 13 have inclined surfaces, the sliding blocks 15 slide along the inclined surfaces of the adjacent fixed tilting blocks 13 (the two are slidably connected through the slide groove and the protruding column), and the sliding blocks 15 are provided with an oil injection cavity 151 (refer to Figure 8 ), the oil injection pipe 14 is connected to the adjacent oil injection chamber 151 (with Figure 8 For example, the right side of the oil filling chamber 151 is connected to the outside, and the left side of the oil filling chamber 151 is connected to the oil filling pipe 14). When the oil filling pipe 14 injects hydraulic oil into the oil filling chamber 151, the sliding block 15 moves to the side close to the oil filling pipe 14. The oil filling pipe 14 is provided with a pressure transmitting device (an existing device, not shown in the figure. The pressure transmitting device is provided with a battery, an oil pressure signal acquisition, and a processing and transmission component, which regularly converts the hydraulic oil signal into an electrical signal and sends it to the data processing module). A vibration-damping rubber block 16 is fixedly connected to the upper side of the sliding block 15, and the upper side surface of the vibration-damping rubber block 16 abuts against the floating plate.

[0064] The above arrangement can be achieved: the staff injects oil into the oil injection chamber 151 through the oil injection pipe 14, so that the sliding slider 15 moves to the side close to the adjustment oil injection pipe 14. When the sliding slider 15 slides back and forth relative to the support seat 11, the sliding slider 15 is guided by the fixed tilting block 13 to slide up and down at the same time, and the height of the vibration-damping rubber block 16 is adjusted, so that the vibration-damping rubber block 16 effectively supports the floating plate (rather than excessive squeeze support or no contact with the floating plate). In addition, this embodiment adopts an independent adjustment mechanism to separately adjust the height of the vibration-damping rubber block 16, so it can better adapt to the existing device. In response to the errors between different floating plates, the connection between the two floating plates is made smoother. When the floating plate moves downward, the vibration-damping rubber block 16 realizes the vibration and noise reduction function by compressing and storing force. The pressure transmitter detects the pressure in the oil filling chamber 151 (the pressure in the oil filling chamber 151 increases with the increase of the squeezing force between the support and the floating plate), and adjusts the pressure in the oil filling chamber 151 at different positions to the same value, so that the load force between all the vibration-damping rubber blocks 16 and the floating plate can be kept balanced. The above method not only simplifies the steps of adjusting the height of the vibration-damping rubber block 16, but also ensures that the force on the entire floating plate is more balanced.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dynamic performance detection device for a floating slab vibration isolator, comprising symmetrically distributed mounting seats (1), and a connecting plate (2) fixedly connected by the symmetrically distributed mounting seats (1). It is characterized in that, The mounting base (1) is rotatably connected to a swing rod (3), and a first elastic member (31) is installed between the two. The connecting plate (2) is fixedly connected to a balance sealing tube (4). The balance sealing tube (4) is slidably connected to a sliding plug (5) and symmetrically distributed transmission rods (6). The sliding plug (5) is located between the symmetrically distributed transmission rods (6). The transmission rod (6) is slidably connected to the sliding plug (5), and a second elastic member (61) is installed between the two. The second elastic member (61) and the sliding plug (5) are both located inside the balance sealing tube (4). A pressure receiving block (7) is fixedly connected to the side of the transmission rod (6) away from the second elastic member (61). The swing rod (3) causes the pressure receiving block (7) to move by squeezing the adjacent pressure receiving block (7). A recording mechanism for recording the displacement state of the sliding plug (5) is provided inside the balance sealing tube (4).

2. The dynamic performance detection device for a floating slab vibration isolator according to claim 1, wherein, The swing rod (3) has a support cushion block (32) and an extrusion convex column (33). The support cushion block (32) and the extrusion convex column (33) are respectively fixedly connected to both ends of the swing rod (3). The extrusion convex column (33) is in contact with the pressure receiving block (7).

3. The dynamic performance detection device of a floating slab vibration isolator according to claim 2, characterized in that A curved surface section (71), an inclined surface section (72), and a horizontal section (73) are provided on the side of the pressure receiving block (7) close to the extrusion convex column (33). The curved surface section (71), the inclined surface section (72), and the horizontal section (73) are all used to contact the extrusion convex column (33).

4. The dynamic performance detection device of a floating slab vibration isolator according to claim 3, characterized in that, The recording mechanism includes plugging members (8) symmetrically distributed about the center. The plugging members (8) are slidably connected to the balance sealing tube (4). The symmetrically distributed plugging members (8) are respectively located on both sides of the sliding plug (5). Pressure sensors (81) symmetrically distributed about the center are fixedly connected inside the balance sealing tube (4). A third elastic member (82) is installed between the plugging member (8) and the adjacent pressure sensor (81). A data processing module is provided on the connecting plate (2). The pressure sensor (81) is used to detect the elastic force of the adjacent third elastic member (82). The pressure sensor (81) is electrically connected to the data processing module. The data processing module converts the value detected by the pressure sensor (81) and the number of times the pressure sensor (81) is triggered into the moving distance and the number of movements of the plugging member (8).

5. The dynamic performance detection device of a floating slab vibration isolator according to claim 4, characterized in that, Symmetrically distributed first flow holes (51) and symmetrically distributed second flow holes (52) are provided on the sliding plug (5). One-way valves (53) are provided inside the second flow holes (52). The communication directions of the one-way valves (53) in the symmetrically distributed second flow holes (52) are opposite. The plugging member (8) is used to block the adjacent second flow holes (52).

6. The dynamic performance detection device of a floating slab vibration isolator according to claim 5, characterized in that The flow area of the first flow hole (51) is smaller than the flow area of the second flow hole (52).

7. The dynamic performance detection device of a floating slab vibration isolator according to claim 6, characterized in that Symmetrically distributed first magnets (54) are installed on the sliding plug (5). Second magnets (83) are installed on the plugging member (8). The second magnets (83) and the adjacent first magnets (54) are magnetically attracted to each other.

8. The dynamic performance detection device of a floating slab vibration isolator according to claim 7, characterized in that, A regulating knob (9) is rotatably connected to the outside of the balance sealing pipe (4) and is symmetrically distributed. The regulating knob (9) is threadedly connected to a regulating plate (91). The plugging member (8) is in limit sliding connection with the regulating plate (91), and the regulating plate (91) is used to adjust the position of the plugging member (8).

9. The dynamic performance detection device of a floating slab vibration isolator according to claim 8, characterized in that, The transmission rod (6) is marked with scales. The balance sealing pipe (4) is fixedly connected with symmetrically distributed indicating rods (10). The indicating rods (10) are aligned with the scales on the adjacent transmission rod (6) to mark the position of the adjacent transmission rod (6).

10. A floating slab isolator adjustment device, which is installed on the floating slab isolator dynamic performance detection device described in claim 1, and is characterized in that, It includes symmetrically distributed support seats (11). The support seats (11) are fixedly connected to the adjacent mounting seats (1). The support seats (11) are fixedly connected with symmetrically distributed fixed inclined blocks (13). The support seats (11) are slidably connected with symmetrically distributed oil injection pipes (14). The oil injection pipes (14) are slidably connected with sliding sliders (15). An oil injection cavity (151) is arranged in the sliding slider (15). The oil injection pipes (14) are communicated with the adjacent oil injection cavities (151). Oil is injected into the oil injection cavities (151) through the oil injection pipes (14). The fixed inclined blocks (13) have inclined surfaces. The sliding sliders (15) slide along the inclined surfaces of the adjacent fixed inclined blocks (13) to adjust the relative positions between the sliding sliders (15) and the adjacent fixed inclined blocks (13). The sliding sliders (15) are fixedly connected with vibration damping rubber blocks (16).

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