Mechanical property detection and adjustment device for floating slab vibration isolator

Abstract

The invention relates to the technical field of floating slab vibration isolator detection, in particular to a mechanical property detection and adjustment device for a floating slab vibration isolator. Comprising an outer sleeve, a spring vibration isolator is installed between the outer sleeve and the ground, the spring vibration isolator is composed of a spring seat, a spring top plate and a steel spring, the spring top plate is slidably connected with the outer sleeve, a fixing column is fixedly connected to the spring seat, a detection rod is slidably connected to the fixing column, a fixing end is fixedly connected to the spring top plate, and the steel spring is fixedly connected to the fixing end. And an arc-shaped spring plate is fixedly connected between the fixed end and the detection rod. The fixed end and the detection rod are allowed to be staggered, the arc-shaped spring plates distributed in the circumferential direction drive the detection rod to move up and down along with the fixed end, the up-and-down moving distance of the detection rod is detected, the up-and-down moving distance of the floating plate during vibration is recorded in detail, the probability of damage to the detection rod is reduced, and meanwhile the detection accuracy is improved. And the detection of the stress moving distance of the floating slab is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of floating slab isolator detection, and particularly to a device for detecting and adjusting the mechanical properties of a floating slab isolator. Background Art

[0002] The subway floating slab vibration reduction technology has become a key engineering carrier for solving rail transit vibration pollution by virtue of its unique structural design and material properties. This technology tunes and absorbs the vibration energy generated by train operation in different frequency bands through a mass-spring system composed of a slab and a steel spring isolator, achieving a broadband and efficient vibration isolation effect. In particular, its control ability for low-frequency vibration is significantly better than that of traditional vibration reduction schemes. However, the isolator is installed inside the ballast bed, and the force condition of the isolator cannot be accurately detected during both the construction period and the operation and maintenance period, making it difficult to effectively analyze whether the force on the floating slab is normal. Therefore, when problems such as installation deviation of the isolator, aging of the steel spring, or load force deviation occur, it is difficult for maintenance personnel to timely detect the unbalanced force on the floating slab and its isolator, resulting in incompleteness and uncertainty in the maintenance process. If the isolator is not maintained in a timely manner, dangerous situations such as the separation between the floating slab and the base layer and brittle fracture due to stress concentration of the isolator are likely to occur.

[0003] In recent years, some regions have begun to try to apply emerging digital detection systems (which can more simply track and record the change amount of the distance between the floating slab and the ground by detecting the retraction distance and retraction times of the probe in real time through sensors) to replace the cumbersome manual detection process. However, since the floating slab is usually only supported upward and resisted from moving horizontally by the steel spring on the isolator (that is, the existing isolator usually does not have a longitudinal limit structure to reduce the probability of wear and jamming of the floating slab during train operation), when applying the digital detection system, the probe of the sensor can usually only be set to be in contact with the detected plane (the floating slab or the top plate of the isolator) to avoid the probe of the sensor being bent by the lateral extrusion of the detected plane. However, this inevitably causes the probe of the sensor to separate from the detected plane when following the up and down vibration of the detected plane due to the instantaneous downward force received by the probe of the sensor, resulting in the distance detected by the sensor for the downward movement of its probe being greater than the actual downward movement distance of the floating slab, and increasing the actual detection error of the probe of the sensor. Thus, it can be seen that the structure of the existing digital detection system still has room for optimization. Summary of the Invention

[0004] In order to overcome the drawback of large detection errors in the direct application of the existing digital monitoring system to the detection of the mechanical properties of a floating slab, the present invention provides a device for detecting and adjusting the mechanical properties of a floating slab isolator.

[0005] The technical implementation solution of the present invention is as follows: A mechanical property detection device for a floating slab vibration isolator, including an outer sleeve, the outer sleeve is fixedly connected to the floating slab, a spring vibration isolator is installed between the outer sleeve and the ground, the spring vibration isolator is composed of a spring seat, a spring top plate and a steel spring, the spring top plate is slidably connected to the outer sleeve, an adjustment module is arranged between the spring top plate and the outer sleeve, the steel spring is fixedly connected between the spring seat and the spring top plate, a fixed column is fixedly connected to the spring seat, a detection rod is slidably connected to the fixed column, a fixed end is fixedly connected to the spring top plate, and circumferentially uniformly distributed arc-shaped spring plates are fixedly connected between the fixed end and the detection rod. A first sensor is fixedly connected inside the fixed column, and a first detection spring is installed between the first sensor and the detection rod.

[0006] Preferably, a first magnet is fixedly connected to one side of the fixed end close to the detection rod, a connecting piece is arranged on the detection rod, a second magnet is fixedly connected to one side of the connecting piece close to the first magnet, and the first magnet and the second magnet repel each other magnetically.

[0007] Preferably, the surface area of the side of the first magnet close to the second magnet is larger than the surface area of the side of the second magnet close to the first magnet.

[0008] Preferably, the detection rod is slidably connected to the connecting piece, a second sensor is fixedly connected to the detection rod, a second detection spring is installed between the second sensor and the connecting piece, a third magnet is fixedly connected inside the detection rod, and the second magnet and the third magnet repel each other magnetically.

[0009] Preferably, there is damping between the detection rod and the connecting piece.

[0010] Preferably, a flexible magnetic shielding cover is fixedly connected to the fixed end, and the first magnet, the second magnet and the third magnet are all located inside the flexible magnetic shielding cover.

[0011] Preferably, circumferentially uniformly distributed fixed cylinders are fixedly connected to the outside of the detection rod, a sliding plate is limited and slidably connected inside the fixed cylinder, a pulling rope is fixedly connected to the sliding plate, the pulling rope penetrates through the fixed cylinder and is fixedly connected to the fixed end, and a pulling spring is installed between the sliding plate and the fixed cylinder.

[0012] Preferably, circumferentially uniformly distributed fixing plates are fixedly connected inside the sliding plate, a gap is left between two adjacent fixing plates on the same sliding plate, and circumferentially uniformly distributed flexible sheets are fixedly connected inside the sliding plate, and the flexible sheets are used to cover the gaps between two adjacent fixing plates.

[0013] A floating plate isolator adjustment device is installed on a floating plate isolator mechanical property detection device, comprising a mounting plate, the mounting plate is fixedly connected to the outer sleeve, the mounting plate is fixedly connected to a fixing gasket, a hydraulic push rod is fixedly connected to the fixing gasket, the telescopic end of the hydraulic push rod is fixedly connected to the spring top plate, a pressure transmitter transmission module is fixedly connected to the hydraulic push rod, and an oiling nozzle is arranged on the hydraulic push rod.

[0014] Preferably, a one-way valve is provided in the oil filling nozzle, and a circumferentially evenly distributed limit screw is fixed to the spring top plate, the limit screw penetrates the mounting plate and the fixed gasket, and a limit bolt is threadedly connected to the limit screw, and the limit bolt is used to limit the position of the mounting plate.

[0015] The beneficial effects of the present invention are as follows: the present invention allows the fixed end and the detection rod to be misaligned, so that the circumferentially distributed arc spring plate drives the detection rod to move up and down with the fixed end, and then detects the up and down movement distance of the detection rod, and records in detail the up and down movement distance of the floating plate when vibration occurs, thereby reducing the probability of damage to the detection rod and making the detection of the force movement distance of the floating plate more accurate.

[0016] The present invention increases the stability of the detection rod following the fixed end to move downward by the first magnet, the second magnet and the third magnet, and increases the stability of the detection rod following the fixed end to move upward by the pull rope, thereby improving the accuracy of detecting the moving distance of the detection rod. At the same time, by additionally detecting the distance between the detection rod and the fixed end, the final detection result is more accurate and reliable.

[0017] The present invention replaces the existing leveling steel plate with a hydraulic push rod, and upgrades the step of stepwise adjustment of the spring isolator to a step of stepless adjustment, making the adjustment process simpler and more precise. At the same time, by connecting the high-pressure airbag to the oil filling nozzle, a means of compensating the load force of the spring isolator is provided when the ground near the floating plate sinks, thereby increasing the ability of the floating plate and the spring isolator to stably cope with unexpected situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the mounting plate and the fixing gasket of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing column of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the fixed column and the fixed end of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the detection rod and the fixed end of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the first magnet and the connecting member of the present invention; Figure 7 is a cross-sectional view of the detection rod of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the sliding plate of the present invention; Figure 9 It is an exploded view of the sliding plate, the fixed plate and the flexible sheet of the present invention.

[0019] Markings in the accompanying drawings: 1: outer sleeve, 2: spring seat, 3: spring top plate, 301: limiting screw, 302: limiting bolt, 4: steel spring, 5: fixing column, 6: detection rod, 7: fixed end, 8: arc spring plate, 9: first sensor, 10: first detection spring, 11: first magnet, 12: connecting piece, 121: second magnet, 13: second sensor, 14: second detection spring, 15: third magnet, 151: flexible magnetic shielding cover, 16: fixing cylinder, 161: sliding plate, 17: pull rope, 18: tension spring, 19: fixing plate, 20: flexible sheet, 21: mounting plate, 22: fixing gasket, 23: hydraulic push rod, 24: pressure transmitter transmission module, 25: oiling nozzle. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Example 1: The present invention proposes a floating plate isolator mechanical properties testing device. Compared with the existing digital testing device, this device overcomes the horizontal shaking of the tested plane and moves up and down with the tested plane, thereby reducing the probability of the testing probe being bent and damaged. At the same time, compared with the existing digital testing device, the detection accuracy of this device is enhanced.

[0022] Reference Figures 1-5 , including an outer sleeve 1, a spring isolator is installed between the outer sleeve 1 and the ground, the spring isolator is an existing device, refer to Figure 2 and Figure 3, consisting of a spring seat 2, a spring top plate 3 and a steel spring 4, the spring seat 2 is fixed to the ground, the spring top plate 3 is slidably connected to the outer sleeve 1, an adjustment module is arranged between the spring top plate 3 and the outer sleeve 1, the adjustment module is an existing device, and is used to adjust the initial load force of the spring isolator, the spring seat 2 and the spring top plate 3 are not in direct contact, the steel spring 4 is fixed between the spring seat 2 and the spring top plate 3, a fixed column 5 is fixed in the spring seat 2, a detection rod 6 is slidably connected to the upper part of the fixed column 5, a fixed end 7 is fixed in the spring top plate 3, a circumferentially evenly distributed arc spring plate 8 is fixed to the fixed end 7, the lower end of the arc spring plate 8 is fixed to the detection rod 6, a first sensor 9 is fixed in the fixed column 5 (the first sensor 9 is an existing Device, the first sensor 9 is electrically connected to an electronic chip with integrated data recording and data conversion functions, the electronic chip can be fixed at any position and has its own small power supply device, for example, the electronic chip is fixed to the bottom outside the spring seat 2, the electronic chip is connected to the staff's mobile control terminal through Bluetooth / Zigbee and other transmission methods, the staff obtains the data stored in the electronic chips in each different device through the mobile control terminal), a first detection spring 10 is installed between the first sensor 9 and the detection rod 6, the first sensor 9 is used to detect the elastic force of the first detection spring 10, and then the electronic chip converts the detected elastic force into a spring compression distance, and then detects the displacement distance of the floating plate and the spring isolator.

[0023] The above arrangement can be realized that when the floating plate drives the spring top plate 3 to shift horizontally during vibration, the circumferentially distributed arc spring plate 8 allows the fixed end 7 and the detection rod 6 to be misaligned through deformation, and at the same time, the elastic force of the circumferentially distributed arc spring plate 8 drives the detection rod 6 to move up and down following the fixed end 7, and the first sensor 9 and the electronic chip detect the downward movement distance of the detection rod 6 through the first detection spring 10, and record the upward and downward movement distance of the floating plate when vibrating.

[0024] Reference Figures 5-7 A first magnet 11 is fixedly connected to the lower side of the fixed end 7, a connecting piece 12 is provided on the upper part of the detection rod 6, and a second magnet 121 is fixedly connected to the top of the connecting piece 12. The first magnet 11 and the second magnet 121 magnetically repel each other (that is, assuming that the N pole of the first magnet 11 is downward, the N pole of the second magnet 121 is upward).

[0025] Reference Figure 6 and Figure 7 The surface area of ​​the lower side of the first magnet 11 is greater than the surface area of ​​the upper side of the second magnet 121, which is used to ensure that when the first magnet 11 deviates horizontally following the fixed end 7, the first magnet 11 can still effectively apply a downward magnetic force to the second magnet 121.

[0026] The above settings can achieve that when the fixed end 7 deflects significantly in the horizontal direction, causing multiple arc-shaped spring plates 8 to be stretched horizontally, the arc-shaped spring plates 8 cannot stably apply downward pressure. However, when the fixed end 7 moves downward in a state of horizontal offset, the first magnet 11 pushes the second magnet 121 and the connecting member 12 downward together by magnetic force, thereby increasing the detection accuracy of the device when the arc-shaped spring plates 8 are difficult to work properly.

[0027] The working principle of the above settings is as follows: The staff installs the device at the corresponding position on the floating slab and adjusts the adjustment modules of each spring isolator to adjust all the spring isolators on the same floating slab to a proper state, ensuring that the floating slab is in a force balance state under the static state.

[0028] When the staff finishes installing the floating slabs of the entire railway, during the train operation, due to the force transmitted during the train operation, the floating slabs vibrate irregularly. The steel springs 4 in all the spring isolators deform and buffer the vibration generated by the floating slabs, reducing the noise generated by the vibration. During this process, taking one group of spring isolators as an example, the fixed end 7, the spring top plate 3, and the outer sleeve 1 vibrate together with the floating slab, while the fixed column 5 and the spring seat 2 remain relatively stationary.

[0029] When the fixed end 7 has a relative displacement in the horizontal direction with respect to the fixed column 5, if the displacement amplitude does not exceed the elastic range of the arc-shaped spring plates 8, all the arc-shaped spring plates 8 swing horizontally following the fixed end 7 and drive the lower detection rod 6 to move downward or upward through compression and stretching. When the detection rod 6 moves in the vertical direction, the elastic force of the first detection spring 10 changes. The first sensor 9 detects the change in the elastic force of the first detection spring 10 and transmits the data to the adjacent electronic chip. The electronic chip converts the change in the elastic force of the first detection spring 10 into the distance that the detection rod 6 moves downward or upward, thereby detecting and recording the distance that the floating slab moves up and down when vibrating.

[0030] When the train is out of service, the staff holds a mobile control terminal to collect the detection data of the floating slabs, connects the electronic chips on all the floating slabs in sequence through transmission methods such as Bluetooth / Zigbee, extracts the detection data records in all the electronic chips, and then the staff analyzes the collected detection data to judge the service performance and status of the spring isolators on different floating slabs, and timely repairs and replaces the spring isolators with abnormal data.

[0031] In Embodiment 1, the detection rod 6 and the connecting member 12 are regarded as fixedly connected, while in this embodiment, the detection rod 6 and the connecting member 12 are slidably connected.

[0032] Embodiment 2: On the basis of the mechanical property detection device of a floating slab vibration isolator proposed in Embodiment 1, more comprehensive and detailed detection means are added. By adding the detection of the distance between the first magnet 11 and the second magnet 121, the detection data of this device is made more accurate and reliable.

[0033] Refer to Figure 6 and Figure 7 , a second sensor 13 is fixedly connected inside the detection rod 6 (the second sensor 13 is an existing device, and the second sensor 13 is electrically connected to the electronic chip in Embodiment 1). A second detection spring 14 is installed between the second sensor 13 and the connecting member 12. The elastic force of the second detection spring 14 is less than the total elastic force of the circumferentially uniformly distributed arc-shaped spring plates 8. A third magnet 15 is fixedly connected inside the detection rod 6. The second magnet 121 and the third magnet 15 repel each other magnetically (that is, assuming the S pole of the second magnet 121 faces downward, then the S pole of the third magnet 15 faces upward). In the static state of the floating slab, the magnetic force exerted by the third magnet 15 on the second magnet 121 is equal to the sum of the magnetic force exerted by the first magnet 11 on the second magnet 121 and the gravity of the connecting member 12 and the second magnet 121.

[0034] The above settings can achieve that when the fixed end 7 has a relative displacement in the horizontal direction with respect to the fixed column 5 and the fixed end 7 moves downward due to vibration, the first magnet 11 moves downward relative to the second magnet 121, and the distance between the first magnet 11 and the second magnet 121 decreases. At this time, the magnetic repulsive force between the first magnet 11 and the second magnet 121 is greater than the magnetic repulsive force between the third magnet 15 and the second magnet 121. The second magnet 121 is pushed downward by the first magnet 11 and the second magnet 121 and the connecting member 12 jointly squeeze the second detection spring 14 downward. The second detection spring 14 compresses and stores energy. At this time, the second sensor 13 detects the elastic force of the second detection spring 14 and transmits the data to the electronic chip. The electronic chip converts the change in the elastic force of the second detection spring 14 into the distance that the connecting member 12 moves downward or upward, and then detects and records the distance that the connecting member 12 moves up and down, thereby obtaining the value of the change in the distance between the fixed end 7 and the detection rod 6. The electronic chip combines the received distance between the fixed end 7 and the detection rod 6 and the distance that the detection rod 6 moves to more accurately detect the distance that the floating slab moves up and down during vibration.

[0035] Refer to Figure 7 , the connection between the lower side of the connecting member 12 and the detection rod 6 is non-sealed, and the gap between the lower side of the connecting member 12 and the detection rod 6 is small. Therefore, during the downward movement of the connecting member 12, it is difficult for the air on its lower side to flow upward through the gap between the lower side of the connecting member 12 and the detection rod 6, resulting in damping during the vertical movement of the detection rod 6. Furthermore, the amplitude of the connecting member 12 moving up and down following the fixed end 7 during the vibration of the fixed end 7 is reduced, thereby reducing the detection error of the second sensor 13.

[0036] Referring to Figure 4 and Figure 5 , a flexible magnetic shielding cover 151 (made of existing synthetic materials, such as flexible silica gel containing ferrite powder) is fixedly connected to the lower side of the fixed end 7, and the first magnet 11, the second magnet 121 and the third magnet 15 are all located inside the flexible magnetic shielding cover 151.

[0037] The above settings can achieve the following: by increasing the moving resistance of the connecting member 12, improving the stability of the connecting member 12 during movement, reducing the intensity of the up-and-down reciprocating fluctuation of the connecting member 12, thereby increasing the accuracy and stability of the detection data of the second sensor 13, and at the same time reducing the influence of external vibrations or electromagnetic components on the train on the first magnet 11, the second magnet 121 and the third magnet 15 through the flexible magnetic shielding cover 151.

[0038] Embodiment 3: On the basis of a floating slab vibration isolator mechanical property detection device proposed in Embodiment 1, the detection rod 6 can move upward more stably together with the fixed end 7, reducing the possibility that the detection rod 6 is difficult to quickly move upward and reset following the fixed end 7 after being subjected to a suddenly downward vibration force.

[0039] Referring to Figure 7 and Figure 8 , three fixed cylinders 16 are fixedly connected to the outer side of the detection rod 6 and are evenly distributed circumferentially. The fixed cylinder 16 is a circular hollow cylinder with closed upper and lower ends. A sliding plate 161 is connected in the fixed cylinder 16 in a limited sliding manner. A pulling rope 17 (the pulling rope 17 is a flexible metal rope, such as a steel wire rope) is fixedly connected to the upper side of the sliding plate 161. The pulling rope 17 penetrates through the fixed cylinder 16 and is fixedly connected to the fixed end 7. A tension spring 18 is installed between the sliding plate 161 and the fixed cylinder 16. The elastic coefficient of the tension spring 18 is less than that of the arc-shaped spring plate 8. The tension spring 18 is in a tension and energy storage state in the static state of the spring vibration isolator (i.e., the state shown in the figure).

[0040] Referring to Figure 8 and Figure 9 , four fixing plates 19 are fixedly connected to the sliding plate 161 and are evenly distributed circumferentially. There is a gap between two adjacent fixing plates 19 on the same sliding plate 161. When the sliding plate 161 drives the fixing plates 19 to slide up and down relative to the fixed cylinder 16, the gas on the upper and lower sides in the cavity where the sliding plate 161 is located flows up and down through the gaps between two adjacent fixing plates 19. Flexible sheets 20 are fixedly connected to the sliding plate 161 and are evenly distributed circumferentially. The flexible sheets 20 are used to cover the gaps between two adjacent fixing plates 19, thereby changing the space for gas flow.

[0041] The above arrangement can be achieved that when the fixed end 7 pushes the detection rod 6 to move downward through the arc spring plate 8 and the first magnet 11, the distance between the fixed end 7 and the detection rod 6 and the fixed cylinder 16 is reduced, the pull rope 17 is relaxed, and the sliding plate 161 moves downward under the drive of the tension spring 18, and the gas on the lower side of the sliding plate 161 in the fixed cylinder 16 flows to the upper side of the sliding plate 161 in the fixed cylinder 16. At this time, the gas can blow the flexible sheet 20 upward to deform the flexible sheet 20, and the flexible sheet 20 no longer covers the gap between the two adjacent fixed plates 19, thereby flowing upward in a low resistance state. When the distance between the fixed end 7 and the detection rod 6 increases, the pull rope 17 is relaxed, and the sliding plate 161 moves downward under the drive of the tension spring 18. 17 is dragged upward by the fixed end 7 to move the sliding plate 161 upward, and the tension spring 18 is stretched and stored, and the gas on the upper side of the sliding plate 161 flows to its lower side. At this time, the flexible sheet 20 is affected by the airflow and is close to the gap between the two adjacent fixed plates 19, hindering the gas flow, thereby increasing the movement resistance of the sliding plate 161. The sliding plate 161 slows down the downward movement speed of the fixed cylinder 16 and the detection rod 6 through this resistance, making it easier for the arc spring plate 8 to pull the detection rod 6 upward faster. When the sliding plate 161 returns to the position of the static state shown in the figure, the pull rope 17 directly drives the fixed cylinder 16 and the detection rod 6 to move upward by dragging the sliding plate 161.

[0042] Example 4: A floating plate isolator adjustment device is proposed to replace the adjustment module described in Example 1 and solve the problems existing in the existing adjustment modules: the existing adjustment modules are usually composed of different numbers of leveling steel plates arranged on the upper layer of the isolator, and the static force of the spring isolator, the elevation of the floating plate and the force balance in the static state are adjusted by increasing or decreasing the thickness of the leveling steel plates on the upper layer of the isolator (for example, increasing the force of one of the spring isolators and adjusting the horizontality of the floating plate). However, because each spring isolator needs to be adjusted individually, and usually a step-by-step adjustment is performed by increasing or decreasing the number of leveling steel plates, the adjustment method is cumbersome and it is difficult to make fine adjustments to the force of each spring isolator and the elevation of the floating plate.

[0043] refer to Figures 2-4 , including a mounting plate 21, the mounting plate 21 is fixedly connected to the outer sleeve 1, a fixed gasket 22 is fixedly connected to the lower side of the mounting plate 21, a hydraulic push rod 23 is fixedly connected to the fixed gasket 22, the telescopic end of the hydraulic push rod 23 is fixedly connected to the spring top plate 3, the hydraulic push rod 23 realizes continuous and stepless adjustment of the load force of a single spring isolator and the elevation of the floating plate by increasing or decreasing the hydraulic oil therein, a pressure transmitter and transmission module 24 is fixedly connected to the hydraulic push rod 23, an oiling nozzle 25 is provided on the hydraulic push rod 23, the pressure transmitter and transmission module 24 is provided with existing components such as batteries, oil pressure signal acquisition, processing and transmission components, the pressure transmitter and transmission module 24 can be used to replace the electronic chip in Example 1, or two different electronic chips can be used respectively.

[0044] ReferenceFigure 3 and Figure 4 , a check valve is provided in the oil injection nozzle 25. The oil injection nozzle 25 can be connected to an external hydraulic system or a high-pressure airbag. The high-pressure airbag stores high-pressure gas and a fixed amount of hydraulic oil. In this embodiment, after adjusting the height of the hydraulic push rod 23 through the oil injection nozzle 25, the scheme of installing a high-pressure airbag on the oil injection nozzle 25 is described. A circumferentially uniformly distributed limit screw 301 is fixedly connected to the spring top plate 3. The limit screw 301 penetrates through the mounting plate 21 and the fixing gasket 22. A limit bolt 302 is threadedly connected to the limit screw 301. The limit bolt 302 is used to limit the height of the mounting plate 21.

[0045] The above settings can achieve injecting hydraulic oil into the hydraulic push rod 23 through the oil injection nozzle 25, controlling the distance between the spring shock absorber and the mounting plate 21, adjusting both the load force of the spring shock absorber in the static state and the elevation of the floating slab. After the adjustment is completed, the high-pressure airbag with high-pressure gas and a fixed amount of hydraulic oil is connected to the oil injection nozzle 25. Because a check valve is installed in the oil injection nozzle 25, the hydraulic oil in the hydraulic push rod 23 cannot flow out into the high-pressure airbag. When the ground near the floating slab subsides or the spring shock absorber sinks due to gas reasons, resulting in a decrease in the static load force of the spring shock absorber, the high-pressure airbag injects hydraulic oil into the hydraulic push rod 23 through the high-pressure gas therein, replenishing the hydraulic oil in the hydraulic push rod 23, and realizing the adaptive adjustment of the static load force of the spring shock absorber, so that the spring shock absorber in the settlement area can still provide an effective supporting force.

[0046] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present invention.

Claims

1. A mechanical property detection device for a floating slab vibration isolator, comprising an outer sleeve (1), the outer sleeve (1) being fixedly connected to the floating slab, a spring vibration isolator being installed between the outer sleeve (1) and the ground, the spring vibration isolator being composed of a spring seat (2), a spring top plate (3) and a steel spring (4), the spring top plate (3) being slidably connected to the outer sleeve (1), an adjustment module being arranged between the spring top plate (3) and the outer sleeve (1), and the steel spring (4) being fixedly connected between the spring seat (2) and the spring top plate (3), characterized in that, A fixing column (5) is fixedly connected to the spring seat (2), a detection rod (6) is slidably connected to the fixing column (5), a fixing end head (7) is fixedly connected to the spring top plate (3), an arc-shaped spring plate (8) evenly distributed in the circumferential direction is fixedly connected between the fixing end head (7) and the detection rod (6), a first sensor (9) is fixedly connected inside the fixing column (5), and a first detection spring (10) is installed between the first sensor (9) and the detection rod (6).

2. The mechanical property detection device of a floating slab vibration isolator according to claim 1, wherein A first magnet (11) is fixedly connected to a side of the fixed end (7) close to the detection rod (6); a connecting piece (12) is provided on the detection rod (6); a second magnet (121) is fixedly connected to a side of the connecting piece (12) close to the first magnet (11); the first magnet (11) and the second magnet (121) magnetically repel each other.

3. The mechanical property detection device of a floating slab vibration isolator according to claim 2, characterized in that, The surface area of ​​the first magnet (11) on a side close to the second magnet (121) is greater than the surface area of ​​the second magnet (121) on a side close to the first magnet (11).

4. The mechanical property detection device of a floating slab vibration isolator according to claim 3, characterized in that, The detection rod (6) is slidably connected to the connecting member (12); a second sensor (13) is fixedly connected to the detection rod (6); a second detection spring (14) is installed between the second sensor (13) and the connecting member (12); a third magnet (15) is fixedly connected inside the detection rod (6); the second magnet (121) and the third magnet (15) magnetically repel each other.

5. The mechanical property detection device of a floating slab vibration isolator according to claim 4, characterized in that, Damping exists between the detection rod (6) and the connecting member (12).

6. The mechanical property detection device of a floating slab vibration isolator according to claim 4, characterized in that, The fixed end (7) is fixedly connected to a flexible magnetic shielding cover (151), and the first magnet (11), the second magnet (121) and the third magnet (15) are all located inside the flexible magnetic shielding cover (151).

7. The mechanical property detection device of a floating slab vibration isolator according to claim 5, characterized in that, The outer side of the detection rod (6) is fixedly connected to a circumferentially uniformly distributed fixed cylinder (16), the fixed cylinder (16) is internally limited and slidably connected to a sliding plate (161), the sliding plate (161) is fixedly connected to a pull rope (17), the pull rope (17) penetrates the fixed cylinder (16) and is fixedly connected to the fixed end (7), and a tension spring (18) is installed between the sliding plate (161) and the fixed cylinder (16).

8. A mechanical property detection device for a floating slab vibration isolator according to claim 7, characterized in that, The sliding plate (161) is fixedly connected to a fixed plate (19) evenly distributed in the circumferential direction, a gap is left between two adjacent fixed plates (19) on the same sliding plate (161), and the sliding plate (161) is fixedly connected to a flexible sheet (20) evenly distributed in the circumferential direction, and the flexible sheet (20) is used to cover the gap between two adjacent fixed plates (19).

9. A floating slab isolator adjustment device, which is installed on the mechanical property detection device of a floating slab isolator described in claim 1, and is characterized in that, The invention comprises a mounting plate (21), wherein the mounting plate (21) is fixedly connected to the outer sleeve (1), the mounting plate (21) is fixedly connected to a fixing gasket (22), a hydraulic push rod (23) is fixedly connected to the fixing gasket (22), the telescopic end of the hydraulic push rod (23) is fixedly connected to the spring top plate (3), a pressure transmission module (24) is fixedly connected to the hydraulic push rod (23), and an oiling nozzle (25) is provided on the hydraulic push rod (23).

10. The floating slab vibration isolator adjustment device according to claim 9, characterized in that, A one-way valve is arranged in the fuel injection nozzle (25). A limiting screw rod (301) evenly distributed in the circumferential direction is fixedly connected to the spring top plate (3). The limiting screw rod (301) penetrates through the mounting plate (21) and the fixed gasket (22). A limiting bolt (302) is threadedly connected to the limiting screw rod (301), and the limiting bolt (302) is used for limiting the position of the mounting plate (21).

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