Bridge and road test operation simulation equipment and performance test platform

Abstract

The invention provides bridge road test operation simulation equipment and a performance test platform, which are used for solving the problem that an operation device cannot comprehensively simulate the influence of an actual vehicle on roadbed performance during a bridge roadbed test in the prior art. Comprising an operation simulation device, the operation simulation device comprises a first track fluted disc, a first bearing, a second bearing, a first fan-shaped disc, a second fan-shaped disc, a first toothed rail, a second toothed rail and an operation mechanism, the first fan-shaped disc is fixedly installed on the outer wall of the first bearing, and the second fan-shaped disc is fixedly installed on the outer wall of the second bearing; the first bearing and the second bearing are both located above the first track fluted disc, the central axes of the first track fluted disc, the first bearing, the second bearing, the first rack rail and the second rack rail are collinear, and the running mechanism conducts circular motion around the first track fluted disc. The device not only can simulate the influence of side-by-side running vehicles on the roadbed in the actual road environment, but also can simulate the influence of front and back running vehicles at different intervals on the roadbed in the actual road environment.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge roadbed performance testing, and in particular relates to a bridge highway test operation simulation device and a performance testing platform. Background Art

[0002] In recent years, with the rapid development of my country's transportation industry, the vehicle flow is large, the speed is fast, and the load is heavy, especially putting forward higher requirements on the mechanical properties and stability performance of bridge and highway subgrades. Now there are new materials used in bridge subgrade engineering. Common bridge subgrades use many types of new materials. When conducting bridge subgrade performance tests, the common operating device is to use a roller simulation, but in practice, there are generally multiple lanes in the same direction. A roller cannot fully simulate the effect of actual vehicles on the bridge subgrade. Among them, it is impossible to simulate the impact of side-by-side vehicles on the same subgrade with the same load on the subgrade performance, nor can it simulate the impact of the same or different loads on the subgrade performance of the front and rear vehicles on the same subgrade, resulting in inaccurate test results. Summary of the invention

[0003] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide a bridge and highway test operation simulation equipment performance test platform. A bridge and highway test operation simulation equipment and performance test platform are used to solve the problem in the prior art that the operating device cannot fully simulate the impact of actual vehicles on the roadbed performance during the bridge roadbed performance test.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the present invention provides a bridge highway test operation simulation device, comprising: A running simulation device, the running simulation device comprising a first track toothed disc, a first bearing, a second bearing, a first sector disc, a second sector disc, a first rack, a second rack and a running mechanism, the first sector disc is fixedly mounted on an outer wall of the first bearing, the second sector disc is fixedly mounted on an outer wall of the second bearing, the first bearing and the second bearing are both located above the first track toothed disc, the central axes of the first track toothed disc, the first bearing, the second bearing, the first rack and the second rack are collinear, and the running mechanism performs a circular motion around the first track toothed disc; The operating mechanism includes a first rotating shaft rotatably mounted on the first sector disk, a first track gear coaxially fixedly matched with one end of the first rotating shaft, a first bevel gear coaxially fixedly matched with the other end of the first rotating shaft, an L-shaped bracket, a second rotating shaft rotatably matched with the vertical part of the L-shaped bracket, a second bevel gear coaxially fixedly matched with one end of the second rotating shaft, a plurality of moving wheels coaxially fixedly mounted side by side on the second rotating shaft, two supporting gears symmetrically arranged on both sides of the plurality of moving wheels, an operating drive member driving the first rotating shaft to rotate, and a loading module for adjusting the pressure value of the moving wheel, the first track gear meshes with the first track toothed disc for transmission, the first rotating shaft rotates with the horizontal part of the L-shaped bracket, the first bevel gear meshes with the second bevel gear for transmission and the rotation axes are perpendicular to each other, the two supporting gears are coaxially fixedly matched with the second rotating shaft, and the two supporting gears mesh with the first rack and the second rack respectively for transmission.

[0005] Optionally, there are at least two operating mechanisms.

[0006] Optionally, the plurality of moving wheels on the running mechanism are arranged at a first spacing and / or a second spacing.

[0007] Optionally, the operating drive member includes a motor, and the motor is wirelessly controlled.

[0008] Optionally, the loading modules have two, and the two loading modules are symmetrically arranged on both sides of the plurality of moving wheels, the loading modules include a mounting seat, a roller, two first fixed pulleys, a steel wire rope, a U-shaped frame, a second fixed pulley, a fixed frame, and a loading drive assembly for driving the roller to rotate, the side wall of the roller is provided with two rope grooves, the roller is rotatably mounted in the mounting seat, the fixed frame is mounted on a side wall parallel to the center axis of the roller, the arc portion of the U-shaped frame is sleeved on the fixed frame to form a movable connection structure, the second fixed pulley is rotatably mounted in the U-shaped frame, the two first fixed pulleys are side by side and rotatably mounted on the second rotating shaft, the roller is located below the first fixed pulley, the center axis of the roller is parallel to the center axis of the second rotating shaft, the second fixed pulley and the center axis of the roller are perpendicular, and the steel wire rope is wound together around the two first fixed pulleys, the second fixed pulley and the two rope grooves of the roller; The mounting seats on the two loading modules are respectively fixedly mounted above the first sector disk and the second sector disk.

[0009] Optionally, the loading drive assembly includes a drive box, a telescopic drive member, a first drive shaft rotatably mounted on the drive box, a second drive shaft rotatably mounted on the drive box, a first drive gear coaxially fixedly matched with the first drive shaft, a second drive gear coaxially fixedly matched with the second drive shaft, and a rotating arm vertically and fixedly connected to the first drive shaft, the drive box is fixedly mounted on one side of the mounting base, the second drive shaft is coaxially fixedly connected to the roller, the telescopic drive member controls the rotation of the rotating arm, and the first drive gear and the second drive gear are meshed for transmission.

[0010] Optionally, the driving telescopic member is a hydraulic rod, one end of the hydraulic rod is hinged to the rotating arm, and the other end of the hydraulic rod is hinged to a surface of the driving box parallel to the first driving shaft.

[0011] Optionally, the operating mechanism further includes a pressure sensor, and the pressure sensor is mounted on the second rotating shaft.

[0012] A performance test platform, comprising the bridge and highway test operation simulation device; It also includes a roadbed simulation mechanism, which includes a base, an annular roadbed, an annular groove, an annular roadbed, and a support base. The annular roadbed is fixedly installed above the base, the annular groove is fixedly installed in the annular roadbed, the annular roadbed is installed in the annular groove, and the support base is fixedly installed at the center position above the base. The annular groove is composed of a plurality of fan-shaped grooves, and the annular roadbed is formed by splicing a plurality of fan-shaped roadbeds one by one. The central axes of the annular roadbed, the fan-shaped groove, and the fan-shaped roadbed are collinear; A plurality of lanes are arranged on the sector-shaped roadbed, and the lanes are fitted with the moving wheels. The first track gear disc and the first bearing are both fixedly sleeved on the outer wall of the base, and the second bearing is fixedly sleeved on the outer wall of the support seat. The first rack and the second rack are respectively coaxially fixedly installed above the inner and outer edges of the annular roadbed with the teeth facing upward.

[0013] Optionally, the roadbed simulation mechanism also includes a drainage ditch, a rotating sampler and a plurality of humidity sensors, the rotating sampler is installed above the support seat, a plurality of the humidity sensors are buried at different depths in the fan-shaped roadbed, the drainage ditch is located between the annular groove and the annular roadbed, and the drainage ditch is connected to the outside through a drainage pipe.

[0014] As described above, the bridge and highway test operation simulation equipment and performance test platform of the present invention have at least the following beneficial effects: The first rotating shaft is driven to rotate by the operating drive member, and the first bevel gear and the first track gear are driven to rotate. The first bevel gear meshes with the second bevel gear for transmission, and then drives the second rotating shaft to rotate, and at the same time drives the first track gear and the two supporting gears to make circular motions on the first track toothed disc, the first rack and the second rack, respectively, so that the operating mechanism can continuously simulate the operation of the vehicle. Several moving wheels are arranged side by side and coaxially, so that the simulated vehicle operation can be closer to the actual road environment, increase the credibility and practicality of the test results, and can also simulate the impact of vehicles running side by side on the roadbed in the actual road environment. The operating mechanism makes a circular motion around the first track toothed disc, which helps to maintain the stability of the operating mechanism, reduce the wear of the moving wheel caused by centrifugal force, and extend the service life of the moving wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a three-dimensional structural schematic diagram of a bridge and highway test operation simulation device of the present invention; Figure 2 Shown is a three-dimensional structural schematic diagram of a loading module of a bridge and highway test operation simulation device of the present invention; Figure 3 Shown is a three-dimensional structural schematic diagram of a loading and driving assembly of a bridge and highway test operation simulation device according to the present invention; Figure 4 Shown is a three-dimensional structural schematic diagram of a performance test platform of the present invention.

[0016] Component number description Roadbed simulation mechanism 1, base 11, annular roadbed 12, annular slot 13, fan-shaped slot 131, annular roadbed 14, fan-shaped roadbed 141, lane 142, support base 15, drainage ditch 16, rotary map collector 17; Operation simulation device 2, first track toothed disc 21, first bearing 22, second bearing 23, first sector disc 24, second sector disc 25, first rack 26, second rack 27, operation mechanism 28, pressure sensor 29; The first rotating shaft 281, the first track gear 282, the first bevel gear 283, the L-shaped bracket 284, the second rotating shaft 285, the second bevel gear 286, the moving wheel 287, the supporting gear 288, the running drive member 289, the loading module 2810, the mounting seat 28101, the roller 28102, the first fixed pulley 28103, the wire rope 28104, the U-shaped frame 28105, the second fixed pulley 28106, the fixing frame 28107, the loading drive assembly 28108, the rope groove 28109, the driving box 281081, the driving telescopic member 281082, the first driving rotating shaft 281083, the second driving rotating shaft 281084, the driving large gear 281085, the driving small gear 281086, and the rotating arm 281087. DETAILED DESCRIPTION

[0017] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0018] See also Figures 1 to 4 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0019] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0020] In this embodiment, please refer to Figures 1 to 3The present invention provides a bridge highway test operation simulation device, comprising: an operation simulation device 2, the operation simulation device 2 comprising a first track toothed disc 21, a first bearing 22, a second bearing 23, a first sector disc 24, a second sector disc 25, a first rack 26, a second rack 27 and a running mechanism 28, the first sector disc 24 is fixedly mounted on the outer wall of the first bearing 22, the second sector disc 25 is fixedly mounted on the outer wall of the second bearing 23, the first bearing 22 and the second bearing 23 are both located above the first track toothed disc 21, the central axes of the first track toothed disc 21, the first bearing 22, the second bearing 23, the first rack 26 and the second rack 27 are collinear, and the running mechanism 28 performs a circular motion around the first track toothed disc 21; the running mechanism 28 comprises a first rotating shaft 281 rotatably mounted on the first sector disc 24, a first track gear 282 coaxially fixedly matched with one end of the first rotating shaft 281, and a first rotating shaft 281 fixedly mounted on the first rotating shaft 281. The other end thereof is coaxially fixedly matched with a first bevel gear 283, an L-shaped bracket 284, a second rotating shaft 285 rotatably matched with the vertical part of the L-shaped bracket 284, a second bevel gear 286 coaxially fixedly matched with one end of the second rotating shaft 285, a plurality of moving wheels 287 coaxially fixedly mounted on the second rotating shaft 285 in parallel, two supporting gears 288 symmetrically arranged on both sides of the plurality of moving wheels 287, a running driving member for driving the first rotating shaft 281 to rotate, and a loading module 2810 for adjusting the pressure value of the moving wheel 287, the first track gear 282 is meshed with the first track toothed disc 21 for transmission, the first rotating shaft 281 is rotatably matched with the horizontal part of the L-shaped bracket 284, the first bevel gear 283 is meshed with the second bevel gear 286 for transmission and the rotation axes are perpendicular to each other, the two supporting gears 288 are coaxially fixedly matched with the second rotating shaft 285, and the two supporting gears 288 are respectively meshed with the first rack 26 and the second rack 27 for transmission.

[0021] The first rotating shaft 281 is driven to rotate by the operating drive member, and the first bevel gear 283 and the first track gear 282 are driven to rotate. The first bevel gear 283 is meshed with the second bevel gear 286 for transmission, and then the second rotating shaft 285 is driven to rotate. The first track gear 282 and the two supporting gears 288 respectively make circular motions on the first track toothed disc 21, the first rack 26 and the second rack 27, so that the operating mechanism 28 can continuously simulate the operation of the vehicle. Several moving wheels 287 are arranged side by side and coaxially, so that when the simulated vehicle is running, it can be closer to the actual road environment, increase the credibility and practicality of the test results, and can also simulate the impact of vehicles running side by side on the roadbed in the actual road environment. The operating mechanism 28 makes a circular motion around the first track toothed disc 21, which helps to maintain the stability of the operating mechanism 28, reduce the wear of the moving wheel 287 caused by centrifugal force, and extend the service life of the moving wheel 287.

[0022] In this embodiment, please refer to Figure 1 , the running mechanisms 28 are at least two. There are at least two running mechanisms 28, so that the simulated vehicle running can be closer to the actual road environment, increase the credibility and practicality of the test results, and can also simulate the impact of the front and rear running vehicles on the roadbed in the actual road environment. The running mechanisms 28 operate independently, so that the spacing between the running mechanisms 28 is adjustable, thereby increasing the impact of the front and rear spacing difference on the roadbed performance during the test.

[0023] In this embodiment, please refer to Figure 1 , the plurality of moving wheels 287 on the running mechanism 28 are arranged at a first spacing and / or a second spacing. The first spacing is smaller than the second spacing, and the plurality of moving wheels 287 on the running mechanism 28 may be arranged at the first spacing or at the second spacing, or may be arranged at the first spacing and at the second spacing in part, so that the effects of different spacings on the roadbed can be analyzed during the test.

[0024] In this embodiment, please refer to Figure 1 The operation drive member includes a motor, and the motor is wirelessly controlled. The motor can be controlled by sending a control signal to the motor using a wireless communication module, so that the motor control is more flexible and convenient to operate.

[0025] In this embodiment, please refer to Figure 1 and Figure 2The loading module 2810 has two, and the two loading modules 2810 are symmetrically arranged on both sides of the plurality of moving wheels 287. The loading module 2810 includes a mounting seat 28101, a roller 28102, two first fixed pulleys 28103, a wire rope 28104, a U-shaped frame 28105, a second fixed pulley 28106, a fixed frame 28107, and a loading drive assembly 28108 for driving the roller 28102 to rotate. Two rope grooves 28109 are provided on the side wall of the roller 28102. The roller 28102 is rotatably mounted in the mounting seat 28101. The fixed frame 28107 is mounted on a side wall of the roller 28102 whose central axis is parallel to the mounting seat 28101. The arc portion of the U-shaped frame 28105 is sleeved on the fixed frame 28107. A movable connection structure is formed, the second fixed pulley 28106 is rotatably installed in the U-shaped frame 28105, the two first fixed pulleys 28103 are arranged side by side and rotatably installed on the second rotating shaft 285, the roller 28102 is located below the first fixed pulley 28103, the central axis of the roller 28102 is parallel to the central axis of the second rotating shaft 285, the central axis of the second fixed pulley 28106 and the roller 28102 are perpendicular, the wire rope 28104 is wound together on the two first fixed pulleys 28103, the second fixed pulley 28106 and the two rope grooves 28109 of the roller 28102; the mounting seats 28101 on the two loading modules 2810 are fixedly installed above the first fan-shaped disk 24 and the second fan-shaped disk 25 respectively. By simultaneously driving the loading drive components 28108 on the two loading modules 2810 to drive the roller 28102 to rotate, the wire rope 28104 can be tightened or loosened, and the load can be balanced by applying force to both sides of the second rotating shaft 285, thereby solving the problem of large differences in repeated test results under the same conditions. The two fixed pulleys can balance the force on the wire rope 28104 and improve the carrying capacity.

[0026] In this embodiment, please refer to Figure 3The loading drive assembly 28108 includes a drive box 281081, a drive telescopic member 281082, a first drive shaft 281083 rotatably mounted on the drive box 281081, a second drive shaft 281084 rotatably mounted on the drive box 281081, a first drive gear coaxially fixedly matched with the first drive shaft 281083, a second drive gear coaxially fixedly matched with the second drive shaft 281084, and a rotating arm 281087 vertically and fixedly connected to the first drive shaft 281083. The drive box 281081 is fixedly mounted on one side of the mounting seat 28101, the second drive shaft 281084 is coaxially fixedly connected to the roller 28102, the drive telescopic member 281082 controls the rotation of the rotating arm 281087, and the first drive gear is meshed with the second drive gear for transmission. By driving the telescopic member 281082 to extend and retract, the rotating arm 281087 is driven to move upward or downward, and then the first driving shaft 281083 is driven to rotate forward or reverse, and then the driving gear 281085 coaxially fixed on the first driving shaft 281083 is driven to rotate, and the driving gear 281085 and the driving pinion 281086 are driven to mesh and transmit, and then the coaxially fixed second driving shaft 281084 is driven to rotate, and the coaxially fixed roller 28102 is driven to rotate, so that the wire rope 28104 can be tightened or loosened, and the transmission is transmitted by the meshing transmission of the driving gear 281085 and the driving pinion 281086, and the transmission process has high precision, good stability and accurate transmission ratio.

[0027] In this embodiment, please refer to Figure 3 The driving telescopic member 281082 is a hydraulic rod, one end of which is hinged on the rotating arm 281087, and the other end of which is hinged on a surface of the driving box 281081 parallel to the first driving shaft 281083. The driving telescopic member 281082 is a hydraulic rod, one end of which is hinged on the rotating arm 281087, and the other end of which is hinged on the top surface or the bottom surface or one of the two side surfaces of the driving box 281081 parallel to the central axis of the first driving shaft 281083. The hydraulic rod has good stability and strong load-bearing capacity when telescoping.

[0028] In this embodiment, please refer to Figure 1 The operating mechanism 28 further includes a pressure sensor 29, which is mounted on the second rotating shaft 285. The pressure sensor 29 mounted on the second rotating shaft 285 can monitor the pressure value of the loading mechanism on the roadbed in real time.

[0029] In this embodiment, please refer to Figure 4 , a performance test platform, comprising the bridge and highway test operation simulation device described in any one of the above embodiments; It also includes a roadbed simulation mechanism 1, which includes a base 11, an annular roadbed 12, an annular groove 13, an annular roadbed 14, and a support seat 15. The annular roadbed 12 is fixedly installed above the base 11, the annular groove 13 is fixedly installed in the annular roadbed 12, the annular roadbed 14 is installed in the annular groove 13, and the support seat 15 is fixedly installed at the center position above the base 11. The annular groove 13 is composed of a plurality of fan-shaped grooves 131, and the annular roadbed 14 is formed by splicing a plurality of fan-shaped roadbeds 141 one by one. The fan-shaped roadbed 141 can be set as a horizontal roadbed or a sloped roadbed according to the test purpose and requirements. The roadbed is used to simulate specific terrain conditions. The central axes of the annular roadbed 12, the fan-shaped slot 131 and the fan-shaped roadbed 141 are collinear; a plurality of lanes 142 are provided on the fan-shaped roadbed 141, and the lanes 142 are fitted with the moving wheels 287. According to test requirements, one moving wheel or a plurality of moving wheels can be provided on one lane 142. The first track toothed disc 21 and the first bearing 22 are both fixedly sleeved on the outer wall of the base 11, and the second bearing 23 is fixedly sleeved on the outer wall of the support seat 15. The first rack 26 and the second rack 27 are respectively coaxially fixedly installed above the inner and outer edges of the annular roadbed 12 with the teeth facing upward. The sector roadbed 141 is made of a mixture, which is mainly composed of soil, stone slabs and blocks, and some of which are also added with fly ash, slag and civil engineering synthetic materials. Since the mixture is made of different materials, it has different properties. The annular roadbed 14 is composed of multiple sector roadbeds 141, so that different roadbed mixtures can be observed and their performances compared under simultaneous and spatial conditions during the test, thereby greatly shortening the test period.

[0030] In this embodiment, please refer to Figure 4 The roadbed simulation mechanism 1 also includes a drainage ditch 16, a rotating map collector 17 and a plurality of humidity sensors. The rotating map collector 17 is installed above the support seat 15. The plurality of humidity sensors are buried at different depths of the sector-shaped roadbed 141. The drainage ditch 16 is located between the annular groove 13 and the annular roadbed seat 12. The drainage ditch 16 is connected to the outside through a drainage pipe. By burying humidity sensors at different depths of the sector-shaped roadbed 141, the humidity changes at different depths can be monitored, and the relationship between the roadbed humidity and other properties can also be studied. The settlement of the sector-shaped roadbed 141 can be collected by the rotating map collector 17. The drainage ditch 16 between the annular groove 13 and the annular roadbed seat 12 is connected to an external position through a drainage pipe, which can effectively prevent water accumulation.

[0031] Working principle: During the test, a circular roadbed 14 is formed by pouring a sector-shaped roadbed 141 into a sector-shaped slot 131. The moving mechanism has at least two, so that the influence of the front and rear running vehicles on the roadbed in the actual road 142 environment can be simulated. The running mechanisms 28 operate independently, so that the spacing between the running mechanisms 28 is adjustable, thereby increasing the influence of the front and rear spacing difference on the roadbed performance during the test. The first rotating shaft 281 is driven to rotate by the operating drive member, and the first bevel gear 283 and the first track gear 282 are driven to rotate. The first bevel gear 283 is meshed with the second bevel gear 286 for transmission, and then the second rotating shaft 285 is driven to rotate. The first track gear 282 and the two supporting gears 288 respectively make circular motions on the first track toothed disc 21, the first rack 26 and the second rack 27, and drive the moving wheel 287 that fits the road 142 on the sector roadbed 141 to move. Several moving wheels 287 are arranged side by side and coaxially, so that when the simulated vehicle is running, it can be closer to the actual road 142 environment, increase the credibility and practicality of the test results, and can also simulate the impact of vehicles running side by side on the roadbed in the actual road 142 environment. The running mechanism 28 makes a circular motion around the first track toothed disc 21, which helps to maintain the stability of the running mechanism 28, reduce the wear of the moving wheel 287 caused by centrifugal force, and extend the service life of the moving wheel 287.

[0032] In summary, the present invention drives the first rotating shaft 281 to rotate by the operating driving member, driving the first bevel gear 283 and the first track gear 282 to rotate, the first bevel gear 283 and the second bevel gear 286 are meshed and transmitted, and then the second rotating shaft 285 is driven to rotate, and at the same time, the first track gear 282 and the two supporting gears 288 are driven to perform circular motion on the first track toothed disc 21, the first rack 26 and the second rack 27, respectively, so that the operating mechanism 28 can continuously simulate the operation of the vehicle. Several moving wheels 287 are arranged side by side and coaxially, so that when the simulated vehicle is running, it can be closer to the actual road 142 environment, increase the credibility and practicality of the test results, and can also simulate the impact of vehicles running side by side on the roadbed in the actual road 142 environment. The running mechanism 28 performs circular motion around the first track toothed disc 21, which helps to maintain the stability of the running mechanism 28, reduce the wear of the moving wheel 287 caused by centrifugal force, and extend the service life of the moving wheel 287. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0033] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A bridge and highway test operation simulation device, characterized in that: include: A running simulation device, the running simulation device comprising a first track toothed disc, a first bearing, a second bearing, a first sector disc, a second sector disc, a first rack, a second rack and a running mechanism, the first sector disc is fixedly mounted on an outer wall of the first bearing, the second sector disc is fixedly mounted on an outer wall of the second bearing, the first bearing and the second bearing are both located above the first track toothed disc, the central axes of the first track toothed disc, the first bearing, the second bearing, the first rack and the second rack are collinear, and the running mechanism performs a circular motion around the first track toothed disc; The operating mechanism includes a first rotating shaft rotatably mounted on the first sector disk, a first track gear coaxially fixedly matched with one end of the first rotating shaft, a first bevel gear coaxially fixedly matched with the other end of the first rotating shaft, an L-shaped bracket, a second rotating shaft rotatably matched with the vertical part of the L-shaped bracket, a second bevel gear coaxially fixedly matched with one end of the second rotating shaft, a plurality of moving wheels coaxially fixedly mounted side by side on the second rotating shaft, two supporting gears symmetrically arranged on both sides of the plurality of moving wheels, an operating drive member driving the first rotating shaft to rotate, and a loading module for adjusting the pressure value of the moving wheel, the first track gear meshes with the first track toothed disc for transmission, the first rotating shaft rotates with the horizontal part of the L-shaped bracket, the first bevel gear meshes with the second bevel gear for transmission and the rotation axes are perpendicular to each other, the two supporting gears are coaxially fixedly matched with the second rotating shaft, and the two supporting gears mesh with the first rack and the second rack respectively for transmission.

2. The bridge highway test operation simulation device according to claim 1 is characterized by: There are at least two operating mechanisms.

3. The bridge highway test operation simulation device according to claim 1 is characterized by: The plurality of moving wheels on the running mechanism are arranged at a first spacing and / or a second spacing.

4. The bridge highway test operation simulation device according to claim 1 is characterized by: The operating drive member includes a motor, and the motor is controlled wirelessly.

5. The bridge highway test operation simulation device according to claim 1 is characterized by: The loading module has two, and the two loading modules are symmetrically arranged on both sides of the plurality of moving wheels. The loading module comprises a mounting seat, a roller, two first fixed pulleys, a steel wire rope, a U-shaped frame, a second fixed pulley, a fixed frame, and a loading drive assembly for driving the roller to rotate. Two rope grooves are provided on the side wall of the roller. The roller is rotatably mounted in the mounting seat, and the fixed frame is mounted on a side wall parallel to the center axis of the roller. The arc portion of the U-shaped frame is sleeved on the fixed frame to form a movable connection structure. The second fixed pulley is rotatably mounted in the U-shaped frame, and the two first fixed pulleys are side by side and rotatably mounted on the second rotating shaft. The roller is located below the first fixed pulley, and the center axis of the roller is parallel to the center axis of the second rotating shaft. The second fixed pulley and the center axis of the roller are perpendicular, and the steel wire rope is wound together around the two first fixed pulleys, the second fixed pulley and the two rope grooves of the roller; The mounting seats on the two loading modules are respectively fixedly mounted above the first sector disk and the second sector disk.

6. The bridge highway test operation simulation device according to claim 5 is characterized by: The loading drive assembly includes a drive box, a drive telescopic member, a first drive shaft rotatably mounted on the drive box, a second drive shaft rotatably mounted on the drive box, a first drive gear coaxially fixedly matched with the first drive shaft, a second drive gear coaxially fixedly matched with the second drive shaft, and a rotating arm vertically and fixedly connected to the first drive shaft, the drive box is fixedly mounted on one side of the mounting seat, the second drive shaft is coaxially fixedly connected to the roller, the drive telescopic member controls the rotation of the rotating arm, and the first drive gear is meshed with the second drive gear for transmission.

7. The bridge highway test operation simulation device according to claim 1 is characterized by: The driving telescopic member is a hydraulic rod, one end of which is hinged on the rotating arm, and the other end of which is hinged on a surface of the driving box parallel to the first driving shaft.

8. The bridge highway test operation simulation device according to claim 1 is characterized by: The operating mechanism further comprises a pressure sensor, and the pressure sensor is mounted on the second rotating shaft.

9. A performance test platform, characterized in that: A bridge and highway test operation simulation device comprising any one of claims 1 to 8; It also includes a roadbed simulation mechanism, which includes a base, an annular roadbed, an annular groove, an annular roadbed, and a support base. The annular roadbed is fixedly installed above the base, the annular groove is fixedly installed in the annular roadbed, the annular roadbed is installed in the annular groove, and the support base is fixedly installed at the center position above the base. The annular groove is composed of a plurality of fan-shaped grooves, and the annular roadbed is formed by splicing a plurality of fan-shaped roadbeds one by one. The central axes of the annular roadbed, the fan-shaped groove, and the fan-shaped roadbed are collinear; A plurality of lanes are arranged on the sector-shaped roadbed, and the lanes are fitted with the moving wheels. The first track gear disc and the first bearing are both fixedly sleeved on the outer wall of the base, and the second bearing is fixedly sleeved on the outer wall of the support seat. The first rack and the second rack are respectively coaxially fixedly installed above the inner and outer edges of the annular roadbed with the teeth facing upward.

10. The performance test platform according to claim 9, characterized in that: The roadbed simulation mechanism also includes a drainage ditch, a rotating sampler and a plurality of humidity sensors. The rotating sampler is installed above the support seat. The plurality of humidity sensors are buried at different depths in the fan-shaped roadbed. The drainage ditch is located between the annular groove and the annular roadbed seat. The drainage ditch is connected to the outside through a drainage pipe.

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