A dynamic detection device for load force of floating plate track structure

Abstract

The present invention relates to the technical field of track safety detection, and discloses a load force dynamic detection device for a floating plate track structure. It comprises a mounting block, a clamping piece is fixedly connected to the upper side of the mounting block, and a displacement sensor is installed together with the mounting block and the clamping piece; a mounting shell is fixedly connected to the mounting block above the position of the clamping piece through a bracket, and hydraulic oil is stored in the mounting shell; a connecting piece is sealingly and slidably connected in the mounting shell, and the connecting piece is fixedly connected to a probe on the displacement sensor, and the connecting piece is fixedly connected to a sealing plate sealingly and slidably connected to the mounting shell, and an extrusion column is slidingly connected to the upper limit of the sealing plate, and a sealing piece is sealingly and slidably connected to the side of the extrusion column close to the sealing plate. The present invention installs a displacement sensor inside the vibration isolator to detect the compression of the spring in the vibration isolator when it is stressed in real time, which requires a short time and has high detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of track safety detection, and in particular to a load force dynamic detection device for a floating plate track structure. Background Art

[0002] Track structure refers to the infrastructure used to support and guide the operation of trains in the railway system. When the train runs at high speed on the track, vibration and noise will be generated, which will affect the residents and buildings around the track. In order to reduce the noise generated by the train running, the track is installed on a floating plate, and the floating plate is lifted to a state separated from the ground by a vibration isolator, so that the vibration generated by the train running is transmitted to the floating plate through the track, and the floating plate squeezes the springs in the adjacent vibration isolators. The above springs are used to reduce the vibration transmitted from the floating plate to the ground, thereby reducing the impact of the vibration on the residents and buildings around the track. However, during the use of the vibration isolator, the springs in the vibration isolator are frequently compressed and released, which easily leads to spring fatigue, wear or failure. If the problem of the spring is not discovered in time, the floating plate may lose its vibration isolation effect. At the same time, the failure of the spring in the vibration isolator will cause the track stability to decrease, affecting the driving safety of the train. At present, it is usually necessary to regularly inspect the vibration isolators, but due to the large number of vibration isolators and the small space for installing the vibration isolators, the inspection is difficult, and the inspection takes a long time and the inspection efficiency is low. Summary of the invention

[0003] The invention provides a load force dynamic detection device for a floating plate track structure, so as to overcome the shortcomings of the prior art that the detection of a vibration isolator takes a long time and has a low detection efficiency.

[0004] The technical implementation scheme of the present invention is:

[0005] A load force dynamic detection device for a floating plate track structure comprises a mounting block, a clamping member is fixedly connected to the upper side of the mounting block, a displacement sensor is installed together with the mounting block and the clamping member, and a probe is provided on the displacement sensor;

[0006] The mounting block is fixedly connected with a mounting shell above the position of the clamping member through a bracket, and hydraulic oil is stored in the mounting shell;

[0007] A connecting piece is sealingly and slidably connected in the mounting shell, the connecting piece is fixedly connected to the probe, the connecting piece is fixedly connected to a sealing plate sealingly and slidably connected to the mounting shell, and a spring is fixedly connected between the sealing plate and the mounting shell;

[0008] The sealing plate is slidably connected with an extrusion column on the upper limit position, and a sealing member is sealingly slidably connected with the side of the extrusion column close to the sealing plate. A spring is fixed between the extrusion column and the sealing member. The sealing plate is provided with a through hole for the circulation of hydraulic oil, and the through hole on the sealing plate is sealed and matched with the sealing member.

[0009] Furthermore, the connecting piece is connected to an extrusion piece in a position-limiting sliding manner near the extrusion column, a spring is fixedly connected between the extrusion piece and the connecting piece, the extrusion column is squeezed and magnetically fitted with the extrusion piece, the extrusion piece and the connecting piece are frictionally fitted, and a heavy ring is connected to the connecting piece in a position-limiting sliding manner near the extrusion piece, a spring is fixedly connected between the heavy ring and the connecting piece, and the heavy ring is squeezed and fitted with the extrusion piece.

[0010] Furthermore, the extrusion member is frictionally matched with the heavy ring to prevent the heavy ring from affecting the position of the connecting member.

[0011] Furthermore, the upper part of the connecting piece is rotatably connected to a mounting cylinder, a squeezing ball is spherically connected in the mounting cylinder, the connecting piece is spherically connected to the squeezing ball, the mounting shell is fixedly connected to a connecting frame, an elastic strip is fixedly connected to a side of the connecting frame close to the mounting cylinder, the elastic strip is slidably connected to the connecting piece, a rubber column is fixedly connected to one end of the elastic strip close to the squeezing ball, the rubber column is frictionally matched with the squeezing ball, an arc groove is provided in the connecting piece close to the squeezing ball, and the elastic strip and the rubber column both slide in the arc groove.

[0012] Furthermore, the extension line of the midline of the elastic strip does not pass through the center of the extrusion ball, so that the elastic strip can bend under the extrusion between the elastic strip and the extrusion ball.

[0013] Furthermore, an extrusion cylinder is fixedly connected to one side of the mounting shell close to the mounting cylinder, the extrusion cylinder is provided with a guide groove, the mounting cylinder slides within the guide groove, a sealing ring is fixedly connected inside the mounting cylinder, and the sealing ring is frictionally matched with the extrusion ball.

[0014] Furthermore, the friction force between the sealing ring and the squeezing ball is smaller than the friction force between the rubber column and the squeezing ball, so that the squeezing ball is driven to rotate by the rubber column.

[0015] Furthermore, there is a distance between the rubber column and the extrusion ball, which is used to delay the wear of the extrusion ball.

[0016] Furthermore, it also includes a mounting frame, which is limitedly slidably connected to the mounting shell, and a tension spring is fixed between the two. An elastic tube is fixed between the mounting frame and the mounting shell, and the mounting tube, the squeezing ball and the squeezing tube are all located in the elastic tube.

[0017] Furthermore, the elastic coefficient of the tension spring between the mounting bracket and the mounting shell is greater than the elastic coefficient of the elastic tube.

[0018] The advantages and positive effects of the present invention compared with the prior art are: the present invention installs a displacement sensor inside the vibration isolator to detect the compression of the spring in the vibration isolator when it is stressed in real time, which requires a short time and has high detection efficiency.

[0019] By detecting the vibration of the vibration isolator and reducing the number of contacts between the vibration isolator and the device when the vibration isolator vibrates, the wear of the device caused by the vibration of the vibration isolator is reduced, thereby ensuring the accuracy of the detection.

[0020] The vibration is transmitted to the heavy ring through the vibration isolator, causing the heavy ring to vibrate and transmit related parts to move, thereby forming a one-way valve on the sealing plate, so that the connecting piece can only move downward but cannot follow the vibration isolator to reset. In this way, the number of times the vibration isolator contacts the device is reduced, and the maximum compression of the spring in the vibration isolator is recorded, which is convenient for subsequent workers to repair and replace the vibration isolator.

[0021] By changing the contact position between the squeezing ball and the vibration isolator, the influence of the wear of the squeezing ball on the detection accuracy is reduced.

[0022] The mounting frame moves with the vibration isolator, and the elastic tube is used to seal the contact position between the extrusion ball and the vibration isolator, thereby reducing the influence of external factors on the accuracy of detecting the deformation of the vibration isolator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the mounting block, displacement sensor and mounting shell of the present invention;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the mounting block, the clamping member and the mounting shell of the present invention;

[0026] Figure 4 It is a three-dimensional structural cross-sectional view of the mounting shell, mounting frame and elastic tube of the present invention;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the connecting piece, the sealing plate and the extruded piece of the present invention;

[0028] Figure 6It is a schematic diagram of the three-dimensional structure of the connecting piece, the extruded piece and the heavy ring of the present invention;

[0029] Figure 7 The present invention is attached Figure 6 The enlarged view of point A in the middle;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting frame, elastic strips and rubber columns of the present invention;

[0031] Fig. 9 It is an exploded view of the three-dimensional structure of the installation cylinder, the extrusion ball and the extrusion cylinder of the present invention.

[0032] In the figure:

[0033] 1- Install the block;

[0034] 2- Clamping piece;

[0035] 3-displacement sensor; 301-probe;

[0036] 4- Install the shell;

[0037] 5-Connectors;

[0038] 6- Sealing plate;

[0039] 7- Squeeze column;

[0040] 8- Seal;

[0041] 9-Extrusion parts;

[0042] 10-fold ring;

[0043] 14-install the cylinder;

[0044] 15-Squeeze the ball;

[0045] 16-connecting frame;

[0046] 17- elastic strip;

[0047] 18- rubber column; 181- arc groove;

[0048] 19-extrusion cylinder; 191-guide groove;

[0049] 20- sealing ring;

[0050] 21-mounting frame;

[0051] 22-Elastic cylinder. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0053] Existingly, when inspecting a vibration isolator (the vibration isolator consists of a lower sleeve, an upper sleeve and a spring therebetween, and the vibration isolator is installed in a corresponding mounting hole on a floating plate), due to the large number of vibration isolators and the small space for installing the vibration isolators, it is difficult to inspect the vibration isolator. At the same time, the inspection takes a long time and has low inspection efficiency. When using a displacement sensor to detect the compression of the spring in the vibration isolator, the vibration isolator vibrates due to the train running on the track. The vibration will cause a relative displacement between the upper sleeve of the vibration isolator and the probe 301 of the displacement sensor, and generate friction with the probe 301 of the displacement sensor, causing wear on the probe 301, affecting the subsequent inspection accuracy.

[0054] It is worth noting that: This article is attached Figure 3 The perspective is used as an example to illustrate.

[0055] Example 1: Please refer to Figure 1-Figure 7 A load force dynamic detection device for a floating plate track structure includes a mounting block 1, a clamping member 2 is fixedly connected to the upper side of the mounting block 1, the clamping member 2 is made of elastic material, a displacement sensor 3 is installed together with the mounting block 1 and the clamping member 2 (a probe 301 is provided on the displacement sensor 3, and the displacement of an external object is detected by detecting the displacement between the probe 301 and the displacement sensor 3. The displacement sensor 3 is an existing device and is not shown in detail in the figure). The displacement sensor 3 communicates with a remote data terminal in real time and is used to transmit the data detected by the displacement sensor 3 to the remote data terminal in real time.

[0056] A mounting shell 4 is fixedly connected to the upper middle part of the mounting block 1 through a bracket, and hydraulic oil is stored in the mounting shell 4; a connecting piece 5 is sealingly and slidably connected up and down in the mounting shell 4, and the lower side of the connecting piece 5 is fixedly connected to the probe 301 of the displacement sensor 3, and the connecting piece 5 passes through the middle part of the mounting shell 4, and a sealing plate 6 is fixedly connected to the middle part of the connecting piece 5, and the sealing plate 6 is sealingly and slidably connected to the mounting shell 4 up and down, and a spring is fixedly connected between the lower side of the sealing plate 6 and the mounting shell 4; an extrusion column 7 is slidingly connected to the upper and lower limit position on the left part of the upper side of the sealing plate 6, and a sealing member 8 is sealingly and slidably connected to the lower part of the extrusion column 7, and a spring is fixedly connected between the extrusion column 7 and the upper side of the sealing member 8, and a through hole for the circulation of hydraulic oil is provided on the left part of the sealing plate 6, and the through hole on the sealing plate 6 is sealed and matched with the sealing member 8 to form a one-way valve so that the sealing plate 6 can only move downward in one direction.

[0057] Please refer to Figure 6 and Figure 7 The middle part of the connecting member 5 is connected to the left and right limit sliding with an extrusion member 9, a spring is fixed between the extrusion member 9 and the right side of the connecting member 5, and the extrusion column 7 is squeezed and matched with the extrusion member 9 by magnetic attraction. The extrusion column 7 is squeezed downward by the extrusion member 9, so that the extrusion column 7 drives the sealing member 8 and the through hole of the sealing plate 6 to form a one-way valve, and the extrusion member 9 and the connecting member 5 are frictionally matched to slowly reset the extrusion member 9. The middle part of the connecting member 5 is connected to the upper and lower limit sliding with a heavy ring 10, and the heavy ring 10 can slide up and down in the connecting member 5 when it is vibrated. A spring is fixed between the upper side of the heavy ring 10 and the connecting member 5, and the lower side of the heavy ring 10 is squeezed and matched with the extrusion member 9. The extrusion member 9 and the heavy ring 10 are frictionally matched to suppress the vibration of the heavy ring 10 and prevent the vibration amplitude of the heavy ring 10 from being too large, thereby affecting the position of the connecting member 5.

[0058] Please refer to Figure 5 , Figure 6 , Figure 8 and Fig. 9The upper part of the connecting member 5 is rotatably connected with the mounting tube 14, and the upper part of the mounting tube 14 is ball-connected with the squeezing ball 15. The connecting member 5 and the squeezing ball 15 are ball-connected. The middle part of the upper side of the mounting shell 4 is fixedly connected with a connecting frame 16, and the connecting frame 16 passes through the upper part of the connecting member 5. The middle left part of the upper side of the connecting frame 16 is fixedly connected with an elastic strip 17. The elastic strip 17 is connected to the connecting member 5 in an up-and-down sliding manner. The upper end of the elastic strip 17 is fixedly connected with a rubber column 18. The rubber column 18 is made of a flexible material with a high friction coefficient (here the material is natural rubber). The rubber column 18 is frictionally matched with the squeezing ball 15, and is used to drive the squeezing ball 15 to rotate through friction, so that different positions of the squeezing ball 15 are in contact with the vibration isolator. An arc groove 181 is provided in the upper right part of the connecting member 5, and the elastic strip 17 and the rubber column 18 both slide in the arc groove 181, and are used to guide the rubber column 18 to slide along the side of the squeezing ball 15. The extension line of the midline of the elastic strip 17 is located on the right side of the center of the squeezing ball 15 , and is used to squeeze the elastic strip 17 to bend and slide along the arc groove 181 through the rubber column 18 when the squeezing ball 15 moves downward.

[0059] Please refer to Figure 4 , Figure 5 , Figure 8 and Fig. 9 , an extrusion cylinder 19 is fixedly connected to the middle part of the upper side of the mounting shell 4, and a guide groove 191 is arranged in the extrusion cylinder 19. The mounting cylinder 14 slides in the guide groove 191 to make the mounting cylinder 14 rotate while moving up and down; a sealing ring 20 is fixedly connected to the upper part of the mounting cylinder 14, and the sealing ring 20 is made of a flexible material with a friction coefficient lower than that of natural rubber (silicone rubber is used here). The sealing ring 20 and the extrusion ball 15 are frictionally matched to drive the extrusion ball 15 to rotate. The friction force between the sealing ring 20 and the extrusion ball 15 is less than the friction force between the rubber column 18 and the extrusion ball 15. Initially, there is a distance between the rubber column 18 and the extrusion ball 15, so that the extrusion ball 15 can rotate under the drive of the sealing ring 20, changing the position where the extrusion ball 15 contacts the sleeve on the vibration isolator each time, delaying the wear of the extrusion ball 15, and extending the service life of the extrusion ball 15.

[0060] When using this device to test the spring in the vibration isolator, the worker installs this device in the vibration isolator. The specific operation is as follows: the worker installs the mounting block 1 on the lower sleeve of the vibration isolator, and makes this device located in the middle of the spring in the vibration isolator, then installs the vibration isolator in the corresponding mounting hole of the floating plate, and makes the upper sleeve of the vibration isolator contact with the squeezing ball 15 and squeezes the squeezing ball 15 downward, and after the vibration isolator is installed on the floating plate, the installation of this device is completed.

[0061] When the squeezing ball 15 is pressed downward, the squeezing ball 15 squeezes the connecting piece 5 downward through the mounting tube 14, and the connecting piece 5 drives all parts thereon to move downward, and compresses the spring between the sealing plate 6 and the mounting shell 4 (hereinafter, this spring is referred to as the spring adjacent to the sealing plate 6), so that the hydraulic oil in the lower part of the mounting shell 4 flows to the upper part through the through hole on the sealing plate 6, and the connecting piece 5 squeezes the probe 301 of the displacement sensor 3 downward, so that the value of the displacement sensor 3 changes (that is, the initial value), and the displacement sensor 3 transmits the initial value to the remote data terminal, and the remote data terminal records the initial value of the displacement sensor 3.

[0062] After the device is fixed, during daily inspection, if the isolator is compressed by the gravity of the floating plate and the train thereon, the upper sleeve of the isolator moves downward, and at the same time, the upper sleeve of the isolator squeezes the connecting piece 5 and the parts thereon downward together through the squeezing ball 15 and the mounting tube 14, and the above steps are repeated. The connecting piece 5 squeezes the probe 301 of the displacement sensor 3 to move, causing the value of the displacement sensor 3 to change. The displacement sensor 3 transmits the value to the remote data terminal, and the remote data terminal determines whether the compression amount of the spring in the isolator is reasonable based on the value, so as to determine whether the isolator needs to be repaired.

[0063] When a train passes on the floating plate, the vibration isolator vibrates, and the vibration of the sleeve on the vibration isolator is transmitted to the connecting member 5 through the extrusion ball 15 and the installation tube 14, so that the connecting member 5 drives the heavy ring 10 inside it to vibrate, and the spring adjacent to the heavy ring 10 is reciprocated, so that the vibration amplitude of the heavy ring 10 gradually increases, and finally the lower side of the heavy ring 10 contacts the extrusion member 9 and squeezes the extrusion member 9 to the left, compressing the spring adjacent to the extrusion member 9, so that the extrusion member 9 squeezes the extrusion column 7 downward; the extrusion column 7 drives the sealing member 8 to the through hole on the sealing plate 6 The heavy ring 10 is sealed (at this time, the through hole of the sealing member 8 and the sealing plate 6 is equivalent to a one-way valve connected from bottom to top), and finally the side surface of the heavy ring 10 contacts the right side surface of the extrusion member 9, and at the same time, the lower side surface of the extrusion member 9 contacts the upper side surface of the extrusion column 7. Under the action of the friction force between the extrusion member 9 and the heavy ring 10, the vibration of the heavy ring 10 is suppressed to prevent the vibration amplitude of the heavy ring 10 from continuing to increase, so that the heavy ring 10 drives the connecting member 5 to move under the action of the impact force, changes the position of the connecting member 5, and thus affects the detection accuracy of the displacement sensor 3.

[0064] As the train passes by the upper side of the isolator's test point, the spring in the isolator is compressed under the action of the train's gravity. At this time, the isolator repeats the above steps to drive the connecting member 5 to move downward. The connecting member 5 drives the sealing plate 6 and all the parts thereon to move downward, compressing the spring adjacent to the sealing plate 6, and at the same time squeezing the hydraulic oil in the lower part of the mounting shell 4 through the through hole of the sealing plate 6 into the upper part of the mounting shell 4. In the process of the hydraulic oil passing through the through hole of the sealing plate 6, the hydraulic oil squeezes the sealing member 8 to move upward, compressing the spring adjacent to the upper side of the sealing member 8, so that the sealing member 8 releases the blockage of the through hole of the sealing plate 6. In this way, when the upper sleeve of the isolator moves upward and resets, the connecting member 5 will not move with the upper sleeve of the isolator in the first time, thereby reducing the number of frictions between the connecting member 5 and the upper sleeve of the isolator, and reducing the influence of parts wear on the detection accuracy.

[0065] When the train passes through the vibration isolator, the spring in the vibration isolator is compressed back and forth, and the upper sleeve of the vibration isolator squeezes the connecting piece 5 until the train completely passes through the test point of the vibration isolator (at this time, the value of the displacement sensor 3 is the maximum compression value of the spring in the vibration isolator when the train passes through the vibration isolator). The vibration of the vibration isolator gradually decreases, and at the same time, the vibration amplitude of the heavy ring 10 in the connecting piece 5 gradually decreases. Finally, the heavy ring 10 is no longer in contact with the extrusion piece 9. The extrusion piece 9 moves right and resets under the action of its adjacent spring. The extrusion piece 9 drives the extrusion column 7 to move upward through the magnetic attraction force, and the extrusion column 7 drives the sealing piece 8 to move upward to release the blockage of the through hole on the sealing plate 6. At this time, the sealing plate 6 moves upward under the action of the adjacent spring, and squeezes the hydraulic oil in the upper part of the mounting shell 4 to the lower part thereof, until the extrusion ball 15 contacts the upper sleeve of the vibration isolator again. In the above process, the value of the displacement sensor 3 is transmitted to the remote data terminal in real time, and the remote data terminal judges the condition of the vibration isolator based on the above value.

[0066] In the process of the upper sleeve of the vibration isolator squeezing the squeezing ball 15 to move downward, the squeezing ball 15 drives the installation tube 14 to move downward, and the installation tube 14 drives the connecting piece 5 to move downward. At the same time, the installation tube 14 slides along the guide groove 191, so that the installation tube 14 moves downward and rotates at the same time. Since the squeezing ball 15 is in contact with the upper sleeve of the vibration isolator at this time, when the installation tube 14 rotates, the installation tube 14 cannot drive the squeezing ball 15 to rotate through the friction between the sealing ring 20 and the squeezing ball 15. As the squeezing ball 15 moves downward, the distance between the squeezing ball 15 and the rubber column 18 gradually decreases and finally contacts each other. At this time, the rubber column 18 slides upward along the arc groove 181 under the squeezing of the elastic strip 17, and deforms after contacting the squeezing ball 15. At this time, since the squeezing ball 15 is in contact with the upper sleeve of the vibration isolator, the squeezing ball 15 does not rotate with the rubber column 18 when the rubber column 18 moves. After the train passes the vibration isolator, the connecting member 5 moves up, and the connecting member 5 drives the mounting tube 14 and the squeezing ball 15 to move up. The mounting tube 14 moves up relative to the elastic strip 17, and the rubber column 18 slides downward along the arc groove 181 under the traction of the elastic strip 17. During this process, the rubber column 18 drives the squeezing ball 15 to rotate a certain angle (the rotation angle here is from front to back) through friction, and finally the rubber column 18 loses contact with the squeezing ball 15, so that the contact surface between the squeezing ball 15 and the upper sleeve of the vibration isolator is always changing, further reducing the influence of the wear of the squeezing ball 15 on the detection accuracy.

[0067] When the connecting member 5 drives the installation cylinder 14 to move upward, the installation cylinder 14 slides along the guide groove 191, so that the installation cylinder 14 moves upward and rotates at the same time (the installation cylinder 14 drives the sealing ring 20 to rotate together when rotating). After the rubber column 18 loses contact with the extrusion ball 15, the installation cylinder 14 drives the extrusion ball 15 to rotate a certain angle through the sealing ring 20 (the rotation perspective here is from top to bottom), thereby changing the rotation direction of the extrusion ball 15 under the action of the rubber column 18 next time, so that the extrusion ball 15 is contacted with the upper sleeve of the vibration isolator at various circumferential locations in turn, thereby increasing the service life of the extrusion ball 15.

[0068] Example 2: Based on Example 1, please refer to Figure 3 and Figure 4 , also includes a mounting frame 21, the mounting frame 21 is slidably connected to the mounting shell 4 with upper and lower limit positions, and two tension springs are fixedly connected between the lower side of the mounting shell 4 and the mounting frame 21, and an elastic tube 22 is fixedly connected between the mounting frame 21 and the upper part of the mounting shell 4. The elastic tube 22 is made of elastic rubber. The mounting tube 14, the squeezing ball 15 and the squeezing tube 19 are all located on the inner side of the elastic tube 22, which is used to seal the position where the squeezing ball 15 contacts the upper sleeve of the vibration isolator. The elastic coefficient of the tension spring between the mounting frame 21 and the mounting shell 4 is greater than the elastic coefficient of the elastic tube 22, which is used to keep the elastic tube 22 and the mounting frame 21 always fit with the upper sleeve of the vibration isolator.

[0069] When installing the device in the vibration isolator, the upper sleeve of the vibration isolator squeezes the squeezing ball 15 downwards and squeezes the mounting frame 21 downwards, stretching the two tension springs adjacent to the mounting frame 21, and then repeating the steps of Example 1 to install the device. When the spring in the vibration isolator is compressed, the upper sleeve of the vibration isolator squeezes the mounting frame 21 to move up and down, and the mounting frame 21 always moves with the upper sleeve of the vibration isolator, and the contact position between the upper sleeve of the vibration isolator and the squeezing ball 15 is sealed to prevent foreign dust and other impurities from entering the contact position between the squeezing ball 15 and the upper sleeve of the vibration isolator, which will affect the detection accuracy.

[0070] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

Claims

1. A dynamic load detection device for a floating plate track structure, characterized in that: It comprises a mounting block (1), a clamping member (2) being fixedly connected to the upper side of the mounting block (1), a displacement sensor (3) being mounted on the mounting block (1) and the clamping member (2), and a probe (301) being disposed on the displacement sensor (3); It also comprises a mounting shell (4), the mounting shell (4) being fixedly connected to the mounting block (1) above a position close to the clamping member (2) via a bracket, and hydraulic oil being stored in the mounting shell (4); A connecting piece (5) is sealingly and slidably connected inside the mounting shell (4), the connecting piece (5) is fixedly connected to the probe (301), the connecting piece (5) is fixedly connected to a sealing plate (6) sealingly and slidably connected to the mounting shell (4), and a spring is fixedly connected between the sealing plate (6) and the mounting shell (4); The sealing plate (6) is slidably connected to an extrusion column (7) at the upper limit position, and a sealing member (8) is sealingly slidably connected to a side of the extrusion column (7) close to the sealing plate (6). A spring is fixedly connected between the extrusion column (7) and the sealing member (8). The sealing plate (6) is provided with a through hole for the circulation of hydraulic oil, and the through hole on the sealing plate (6) is sealed and matched with the sealing member (8); The connecting member (5) is connected to an extrusion member (9) in a position-limiting sliding manner near the extrusion column (7), a spring is fixedly connected between the extrusion member (9) and the connecting member (5), the extrusion column (7) and the extrusion member (9) are squeezed and magnetically matched, the extrusion member (9) and the connecting member (5) are frictionally matched, and a heavy ring (10) is connected to the position-limiting sliding manner near the extrusion member (9) in the connecting member (5), a spring is fixedly connected between the heavy ring (10) and the connecting member (5), and the heavy ring (10) is squeezed and matched with the extrusion member (9); The extrusion member (9) is frictionally matched with the heavy ring (10) to prevent the heavy ring (10) from affecting the position of the connecting member (5); The upper part of the connecting member (5) is rotatably connected to a mounting cylinder (14), a squeezing ball (15) is ball-connected in the mounting cylinder (14), the connecting member (5) and the squeezing ball (15) are ball-connected, the mounting shell (4) is fixedly connected to a connecting frame (16), a side of the connecting frame (16) close to the mounting cylinder (14) is fixedly connected to an elastic strip (17), the elastic strip (17) is slidably connected to the connecting member (5), one end of the elastic strip (17) close to the squeezing ball (15) is fixedly connected to a rubber column (18), the rubber column (18) and the squeezing ball (15) are frictionally matched, an arc groove (181) is provided in the connecting member (5) at a position close to the squeezing ball (15), the elastic strip (17) and the rubber column (18) both slide in the arc groove (181).

2. A load force dynamic detection device for a floating plate track structure according to claim 1, characterized in that: The extension line of the midline of the elastic strip (17) does not pass through the center of the squeezing ball (15), so that the elastic strip (17) can bend under the squeezing of the elastic strip (17) and the squeezing ball (15).

3. The load dynamic detection device for a floating plate track structure according to claim 1, characterized in that: An extrusion cylinder (19) is fixedly connected to one side of the installation shell (4) close to the installation cylinder (14); the extrusion cylinder (19) is provided with a guide groove (191); the installation cylinder (14) slides in a limited position in the guide groove (191); a sealing ring (20) is fixedly connected to the installation cylinder (14); the sealing ring (20) is frictionally engaged with the extrusion ball (15).

4. The load dynamic detection device for a floating plate track structure according to claim 3 is characterized in that: The friction force between the sealing ring (20) and the squeezing ball (15) is smaller than the friction force between the rubber column (18) and the squeezing ball (15), and is used to drive the squeezing ball (15) to rotate via the rubber column (18).

5. The load dynamic detection device for a floating plate track structure according to claim 3, characterized in that: There is a distance between the rubber column (18) and the squeezing ball (15), which is used to delay the wear of the squeezing ball (15).

6. The load dynamic detection device for a floating plate track structure according to claim 3, characterized in that: The invention also comprises a mounting frame (21), the mounting frame (21) being connected to the mounting shell (4) in a limited sliding manner, and a tension spring being fixedly connected therebetween, an elastic tube (22) being fixedly connected between the mounting frame (21) and the mounting shell (4), and the mounting tube (14), the squeezing ball (15) and the squeezing tube (19) are all located inside the elastic tube (22).

7. A load force dynamic detection device for a floating plate track structure according to claim 6, characterized in that: The elastic coefficient of the tension spring between the mounting frame (21) and the mounting shell (4) is greater than the elastic coefficient of the elastic tube (22).

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