CN218823709U - Impact rolling model experimental device - Google Patents
Impact rolling model experimental device Download PDFInfo
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- CN218823709U CN218823709U CN202222905533.7U CN202222905533U CN218823709U CN 218823709 U CN218823709 U CN 218823709U CN 202222905533 U CN202222905533 U CN 202222905533U CN 218823709 U CN218823709 U CN 218823709U
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Abstract
The utility model discloses an impact rolling model experimental device, which comprises an annular track, an impact rolling module and a model box, wherein the annular track comprises a first guide rail and a second guide rail which are arranged at intervals up and down; the impact rolling module comprises a driving structure and an impact structure, and the driving structure is connected with the impact structure and is used for driving the impact structure to reciprocate along a second guide rail; the top of mold box has the opening that communicates with the inner chamber of mold box, and the inner chamber packing of mold box has the soil sample that awaits measuring and a plurality of data acquisition assembly of burying underground in the different degree of depth of soil sample that awaits measuring, and the second guide rail corresponds open-ended position disconnection and forms the breach to drop to the inner chamber of mold box from the breach when making impact structure remove to the breach, strike the soil sample that awaits measuring and roll. Drive the impact structure on the second guide rail through the drive structure on the first guide rail and wind circular orbit reciprocating motion for impact structure can need not manual reset, can repeat many times and strike the soil sample that awaits measuring and roll the experiment, has improved test efficiency.
Description
Technical Field
The utility model relates to a civil model experiment technical field especially relates to an annular strikes and rolls model experiment device.
Background
Since the introduction of the impact rolling technology into China in the last 90 s, the impact rolling technology has wide application in the aspect of shallow foundation treatment. In the process of impact rolling construction, a three-edge, four-edge or five-edge non-circular impact wheel with the weight of 10-12 tons is dragged by a tractor to roll forwards at the speed of 12 kilometers per hour, and simultaneously, each surface of the impact wheel impacts the surface of a soil body in sequence to reinforce the soil body. At present, three methods, namely a field experiment, a numerical simulation experiment and a model experiment, are generally adopted for researching the reinforcing effect and the reinforcing mechanism of the impact rolling. Among them, the model experiment is an effective research method because of low cost, high efficiency and stable experimental conditions. In the last decade, scientific research personnel provide a guy cable traction type impact rolling model experimental device. The traction rope is driven by the motor, the impact wheel of the traction model moves forwards to impact the soil body in the model box, so that the actual construction condition is simulated, and the technical principle of the model box is researched.
The number of times of impacting and rolling to impact the soil body in the model experiment can reach more than 20 times generally. The existing model experiment device firstly suspends the experiment and lifts the impact wheel by hand after impacting and rolling each time, manually resets the impact wheel to the same initial point under the condition of not influencing the surface of the soil body, and then impacts the next wheel, so that the experiment efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an impact and roll model experiment device aims at solving the problem that current model experiment device needs manual reset impact wheel at every turn of experiment, leads to experimental inefficiency.
In order to achieve the above object, the utility model provides an impact rolling model experiment device, include:
the annular track comprises a first guide rail and a second guide rail which are arranged at intervals up and down, and the first guide rail and the second guide rail are both annular guide rails;
the impact rolling module comprises a driving structure and an impact structure, the driving structure is mounted on the first guide rail and slides along the first guide rail, the impact structure is mounted on the second guide rail and moves along the second guide rail, and the driving structure is connected with the impact structure and is used for driving the impact structure to reciprocate along the second guide rail;
the model box is located below the second guide rail, an opening communicated with an inner cavity of the model box is formed in the top of the model box, a soil sample to be detected and a plurality of data acquisition assemblies buried at different depths of the soil sample to be detected are filled in the inner cavity of the model box, the second guide rail is disconnected corresponding to the position of the opening and forms a notch, so that the impact structure moves to one end of the notch, the impact structure drops to the inner cavity of the model box from one end of the notch to impact and roll the soil sample to be detected, the impact structure drives the impact structure to return to the second guide rail from the other end of the notch and move continuously along the second guide rail, and the data acquisition assemblies are used for acquiring impact data received by the soil sample to be detected.
Preferably, the second guide rail is provided with an annular support platform, and the support platform is disconnected at a position corresponding to the notch;
the driving structure comprises a driving part, a guide wheel and a connecting frame, the impact structure comprises an impact wheel and a supporting wheel, the driving part is mounted on the first guide rail, the guide wheel is in rolling contact fit with the second guide rail, the driving part is used for driving the guide wheel to roll along the second guide rail, the supporting wheel is in rolling contact fit with the supporting table, a wheel shaft of the impact wheel is connected with the supporting wheel, the bottom of the impact wheel is higher than the upper surface of the second guide rail, the impact wheel is hinged with the connecting frame through a connecting rod, the guide wheel and the driving part are both connected with the connecting frame, and the top of the model box is used for supporting the guide wheel when the guide wheel rolls to the opening.
Preferably, the drive assembly includes rotary drive spare, carriage and transmission assembly, rotary drive spare install in on the carriage, the carriage with first guide rail sliding contact cooperation, rotary drive spare passes through the transmission assembly drive the leading wheel rotates and follows the second guide rail rolls, in order to pass through the link drives the jump bit with the carriage removes, the top of model box is provided with the connecting plate, the connecting plate corresponds the opening sets up, the connecting plate is used for the leading wheel rolls extremely support during the opening the leading wheel.
Preferably, the transmission assembly includes a first synchronous pulley, a second synchronous pulley, a first synchronous belt and a second synchronous belt, the first synchronous belt is wound outside the first synchronous pulley and the second synchronous pulley, the second synchronous belt is wound outside the second synchronous pulley and the wheel shaft of the guide pulley, the rotary driving member is configured to drive the first synchronous pulley to rotate and drive the second synchronous pulley to rotate through the first synchronous pulley, and the second synchronous pulley drives the guide pulley to rotate through the second synchronous belt.
Preferably, the supporting platform is located at the two ends of the opening and is provided with impact slopes, and the two impact slopes are obliquely and downwardly arranged towards the direction of the opening.
Preferably, the impact rolling model experiment device further comprises a frame, the frame comprises a bottom frame and a plurality of pillars, the first guide rail and the second guide rail are connected with the bottom frame through the plurality of pillars, the plurality of pillars are arranged at intervals along the extending direction of the first guide rail and the second guide rail, the bottom frame and the second guide rail enclose a moving space, and the model box is movably installed in the moving space.
Preferably, the bottom of model box is provided with the support frame, the circular orbit is runway type guide rail, correspond in the activity space the support frame is provided with along the width direction of runway type guide rail is towards keeping away from the slide rail that the direction of circular orbit extends, the one end of support frame with the model box is connected, and the other end is provided with slide rail sliding contact complex pulley.
Preferably, each data acquisition assembly comprises a sinker, a transmission rod and a displacement sensor, the sinker is embedded in the soil sample to be measured, the displacement sensor is arranged below the model box, one end of the transmission rod is connected with the sinker, the other end of the transmission rod penetrates out of the model box and is connected with the displacement sensor, and the displacement sensor is used for detecting the displacement of the sinker so as to collect the impact data.
Preferably, a through hole is formed in the bottom of the model box corresponding to the position of the transmission rod, a protective sleeve is arranged at the through hole, a protective cavity is formed in the protective sleeve, and the transmission rod penetrates through the protective cavity; and/or a weight increasing block is arranged at the position of the transmission rod close to the displacement sensor.
Preferably, an observation window is formed in the side wall of one side of the model box, a plurality of reference punctuations are arranged on the observation window, the impact rolling model experiment device further comprises a camera, and the camera is arranged corresponding to the position of the observation window and is used for shooting image data of the soil sample to be measured through the observation window.
The technical scheme of the utility model, when the drive structure moves to open-ended one end on first guide rail, the impact structure that is located on the second guide rail falls into the inner chamber of mold box from the one end of the breach of second guide rail, and take place to strike with the surface of the soil sample that awaits measuring in the mold box and roll, thereby carry out simulation experiment, the drive structure drives and strikes the surface continuation forward of structure at the soil sample that awaits measuring, the data that the impact structure rolled the production to the soil sample that awaits measuring this moment is buried underground in a plurality of data acquisition subassemblies of the soil sample that awaits measuring in proper order, move to the open-ended other end after the impact structure, this wheel strikes and rolls the experiment completion, on the other end that the impact structure passed through the breach gets back to the second guide rail simultaneously, continue to advance along the circular orbit along with the drive structure, around circular orbit round back, get into the mold box from breach department once more and carry out the second round of impact and roll the experiment, repeat above-mentioned step many times, roll the experiment completion until strikeing. The impact structure on the second guide rail is driven to reciprocate around the circular orbit by the driving structure on the first guide rail, so that the impact structure can be repeatedly impacted and rolled for a plurality of times without manual reset, and the test efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic front view of an experimental apparatus for an impact rolling model according to an embodiment of the present invention;
fig. 2 is a schematic top view of an experimental apparatus for an impact rolling model according to an embodiment of the present invention;
fig. 3 is a schematic front view of a model box of an impact rolling model experimental apparatus according to an embodiment of the present invention;
fig. 4 is a schematic side view of a model box of an impact rolling model experimental apparatus according to an embodiment of the present invention;
fig. 5 is a schematic front view of an impact rolling module of the experimental apparatus for impact rolling model according to an embodiment of the present invention;
fig. 6 is a schematic top view of an impact rolling module of the experimental apparatus for impact rolling model according to an embodiment of the present invention;
fig. 7 is a schematic side view of an impact rolling module of the experimental apparatus for impact rolling model according to an embodiment of the present invention;
fig. 8 is a schematic side view of a transmission assembly of an impact rolling model experiment apparatus according to an embodiment of the present invention;
fig. 9 is a schematic front view of a data collecting assembly of the impact rolling model experiment apparatus according to an embodiment of the present invention;
FIG. 10 is an enlarged view at A in FIG. 9;
FIG. 11 is an enlarged view at B of FIG. 9;
fig. 12 is a schematic side view of the circular track of the experimental apparatus for impact rolling model according to an embodiment of the present invention.
The reference numbers illustrate:
the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as the upper, lower, left, right, front, and rear … …) in the present embodiment are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention is described in the directions of "up", "down", "front", "back", "left", "right", etc. with reference to the directions shown in fig. 1 and 2, and is only used to explain the relative positional relationship between the respective components in the postures shown in fig. 1 and 2, and if the specific posture is changed, the directional indication is correspondingly changed accordingly.
The utility model provides an impact and roll model experiment device 1.
Referring to fig. 1 and 2, the impact rolling model experiment apparatus 1 of the present embodiment includes an annular rail 10, an impact rolling module 20, and a model box 30, wherein the annular rail 10 includes a first guide rail 11 and a second guide rail 12 which are arranged at an interval from top to bottom, and both the first guide rail 11 and the second guide rail 12 are annular guide rails; the impact rolling module 20 comprises a driving structure 21 and an impact structure 22, the driving structure 21 is mounted on the first guide rail 11 and slides along the first guide rail 11, the impact structure 22 is mounted on the second guide rail 12 and moves along the second guide rail 12, and the driving structure 21 is connected with the impact structure 22 and is used for driving the impact structure 22 to reciprocate along the second guide rail 12; the model box 30 is located below the second guide rail 12, the top of the model box 30 is provided with an opening 31 communicated with an inner cavity of the model box 30, the inner cavity of the model box 30 is filled with a soil sample 50 to be measured and a plurality of data acquisition assemblies 32 embedded at different depths in the soil sample 50 to be measured, the position of the second guide rail 12 corresponding to the opening 31 is disconnected and forms a notch 121, so that the impact structure 22 falls into the inner cavity of the model box 30 from one end of the notch 121 when moving to one end of the notch 121, so as to impact and roll the soil sample 50 to be measured, the driving structure 21 drives the impact structure 22 to return to the second guide rail 12 from the other end of the notch and move continuously along the second guide rail 12, and the data acquisition assemblies 32 are used for acquiring impact data received by the soil sample 50 to be measured.
Alternatively, the driving structure 21 may be a self-powered trolley, which moves on the first rail 11 to drive the impact structure 22 to move on the second rail 12; the driving device, which may also be an external power supply, is powered by an external power supply and moves on the first guide rail 11 to drive the impact structure 22 to move on the second guide rail 12.
The technical scheme of the utility model, drive structure 21 when moving to opening 31's one end on first guide rail 11, the impact structure 22 that is located on second guide rail 12 falls into the inner chamber of mold box 30 from the one end of second guide rail 12's breach 121, and take place to strike with the surface of the soil sample 50 that awaits measuring in mold box 30 and roll, thereby carry out the simulation experiment, drive structure 21 drives and strikes structure 22 and continue to advance on the surface of the soil sample 50 that awaits measuring, impact structure 22 rolls the data that produces to the impact of the soil sample 50 that awaits measuring and is buried in a plurality of data acquisition component 32 of the soil sample 50 that awaits measuring in proper order this moment, until impact structure 22 removes behind the other end of opening 31, this wheel strikes and rolls the experiment and accomplishes, impact structure 22 returns back to second guide rail 12 through the other end of breach 121 on simultaneously, continue to advance along with drive structure 21, around annular track 10 round back, again from breach 121 department entering mold box 30 and carrying out the second round and strike the experiment, repeat above-mentioned step many times, until strikeing and rolling the experiment is accomplished. Drive structure 21 through on the first guide rail 11 and drive impact structure 22 on the second guide rail 12 around circular orbit 10 reciprocating motion for impact structure 22 can need not artificial manual reset, can repeat and strike the experiment that rolls to await measuring soil sample 50 many times, has improved test efficiency.
In one embodiment, the second rail 12 is provided with an annular support platform 122, and the support platform 122 is disconnected corresponding to the position of the notch 121; the driving structure 21 comprises a driving part, a guide wheel 240 and a connecting frame 23, the impact structure 22 comprises an impact wheel 221 and a support wheel 222, the driving part is mounted on the first guide rail 11, the guide wheel 240 is matched with the second guide rail 12 in a rolling contact manner, the driving part is used for driving the guide wheel 240 to roll along the second guide rail 12, the support wheel 222 is matched with the support table 122 in a rolling contact manner, the wheel shaft of the impact wheel 221 is connected with the support wheel 222, the bottom of the impact wheel 221 is higher than the upper surface of the second guide rail 12, the impact wheel 221 is hinged with the connecting frame 23 through a connecting rod 223, the guide wheel 240 and the driving part are both connected with the connecting frame 23, and the top of the model box 30 is used for supporting the guide wheel 240 when the guide wheel 240 rolls to the opening 31.
Further, the driving part includes a rotary driving member 210, a sliding frame 220 and a transmission assembly 230, the rotary driving member 210 is mounted on the sliding frame 220, the sliding frame 220 is in sliding contact with the first guide rail 11, the rotary driving member 210 drives the guide wheel 240 to rotate through the transmission assembly 230 and roll along the second guide rail 12 so as to drive the impact wheel 221 and the sliding frame 220 to move through the connection frame 23, a connection plate 311 is disposed at the top of the mold box 30, the connection plate 311 is disposed corresponding to the opening 31, and the connection plate 311 is used for supporting the guide wheel 240 when rolling to form the opening 31.
It can be understood that the first guide rail 11 is located above the second guide rail 12, the impact wheel 221 is connected below the driving structure 21, and the impact wheel 221 is a trilateral impact wheel 221, a quadrilateral impact wheel 221 or a pentagonal impact wheel 221, and is scaled down by the impact wheel 221 used in the actual engineering.
Referring to fig. 1 and 2, the lower portion of the sliding frame 220 is connected to the connecting frame 23, the lower portion of the connecting frame 23 is connected to the guide wheel 240 and the impact wheel 221, respectively, so that the sliding frame 220, the guide wheel 240 and the impact wheel 221 move synchronously, the rotary driving member 210 drives the guide wheel 240 to rotate through the transmission assembly 230, the guide wheel 240 rotates and advances, so as to drive the sliding frame 220 and the impact wheel 221 to advance, the second guide rail 12 surrounds a ring, the support platform 122 is located on the inner side of the second guide rail 12, the guide wheel 240 is in rolling contact with the outer side of the second guide rail 12, the impact wheel 221 is supported by the connecting rod 223 and the support wheel 222 so as to be higher than the upper surface of the second guide rail 12, so that after the impact wheel 221 has impacted from the surface of the soil sample 50 to be tested and returns to the second guide rail 12 again, the movement state of the impact wheel 221 each time when contacting the surface of the soil sample 50 to be tested is not completely consistent due to inertia, so as to make the impact points different, which is in line with the actual situation of the field construction, so that the test result is more accurate; a walking channel for supporting the guide wheel 240 is formed at the top of the model box 30, when the guide wheel 240 moves to the opening 31, the impact wheel 221 falls into the model box 30 for impact rolling, the guide wheel 240 still moves on the walking channel to drive the impact wheel 221 to continue moving, meanwhile, the guide wheel 240 does not fall into the model box 30, the soil sample 50 to be tested is not affected, and the accuracy of the experiment is improved. Preferably, the rotary driver 210 may be a driving motor.
Further, the support platform 122 is formed with impact slopes 123 at both ends of the opening 31, and the two impact slopes 123 are disposed obliquely downward toward the opening 31. The supporting platforms 122 at the two ends of the opening 31 form downward slopes inclining towards the opening 31, so that when the impact wheel 221 falls into the model box 30 and breaks away from the model box 30 to enter the second guide rail 12 again, the supporting wheel 222 runs smoothly, the stability and the efficiency are improved, meanwhile, the connecting plate 311 is arranged at the top of the model box 30 to form a walking channel, the walking channel is used for supporting the guiding wheel 240 and does not fall into the model box 30, the influence on the soil sample 50 to be tested is avoided, and the accuracy of the experiment is improved.
In an embodiment, the transmission assembly 230 includes a first synchronous pulley 231, a second synchronous pulley 232, a first synchronous belt 233 and a second synchronous belt 234, the first synchronous belt 233 is wound around the first synchronous pulley 231 and the second synchronous pulley 232, the second synchronous belt 234 is wound around the second synchronous pulley 232 and the guide pulley 240, the rotary driving member 210 is configured to drive the first synchronous pulley 231 to rotate and drive the second synchronous pulley 232 to rotate through the first synchronous belt 233, and the second synchronous pulley 232 drives the guide pulley 240 to rotate through the second synchronous belt 234. First synchronizing wheel 231 is connected with the output shaft of rotary driving member 210, second synchronizing wheel 232 is installed on link 23, through the cooperation of first synchronizing wheel 231, second synchronizing wheel 232, first hold-in range 233, second hold-in range 234, the rotation that will be located rotary driving member 210 on first guide rail 11 transmits to the leading wheel 240 that is located on second guide rail 12, thereby it rolls module 20 removal to drive whole impact through leading wheel 240, the synchronizing wheel is simple with the design structure of hold-in range, the transmission is accurate.
In an embodiment, the impact rolling model experiment apparatus 1 further includes a frame 40, the frame 40 includes a bottom frame 41 and a plurality of pillars 42, the first guide rail 11 and the second guide rail 12 are connected to the bottom frame 41 through the pillars 42, the pillars 42 are disposed at intervals along the extending direction of the first guide rail 11 and the second guide rail 12, the bottom frame 41 and the second guide rail 12 enclose a movable space 60, and the model box 30 is movably installed in the movable space 60. The first guide rail 11 and the second guide rail 12 are mounted on the bottom frame 41 through the pillars 42, and the model box 30 can move relative to the bottom frame 41, so that the model box 30 can be staggered with the second guide rail 12, and the soil sample 50 to be detected and the data acquisition assembly 32 in the model box 30 are adjusted without being influenced by the second guide rail 12, thereby improving the efficiency of adjusting the soil sample 50 to be detected and improving the detection efficiency.
Further, a support frame 33 is disposed at the bottom of the model box 30, the circular rail 10 is a track-type rail, a slide rail 411 extending along the width direction of the track-type rail in a direction away from the circular rail 10 is disposed in the movable space 60 corresponding to the support frame 33, one end of the support frame 33 is connected to the model box 30, and the other end is disposed with a pulley 331 in sliding contact with and engaged with the slide rail 411. In the movable space 60, the bottom of the supporting frame 33 is provided with a slide rail 411 extending in the width direction of the racetrack type guide rail, and the slide rail 411 extends away from the circular rail 10, so that the model box 30 can be drawn out in the width direction of the racetrack type guide rail, and the model box 30 is connected with the slide rail 411 through the supporting frame 33, and a space of the data acquisition assembly 32 is reserved at the bottom of the model box 30.
In an embodiment, each data acquisition assembly 32 includes a sinker 321, a transmission rod 322, and a displacement sensor 323, the sinker 321 is embedded in the soil sample 50 to be measured, the displacement sensor 323 is disposed under the model box 30, one end of the transmission rod 322 is connected to the sinker 321, the other end of the transmission rod passes through the model box 30 and is connected to the displacement sensor 323, and the displacement sensor 323 is configured to detect a displacement of the sinker 321 to collect impact data. Sinker 321 is the plastics material finished piece, and is cuboid sheet structure, and its one side that the area is the biggest is as being pressed the face and setting up upwards to it is higher to the change response sensitivity of the soil sample 50 that awaits measuring to improve sinker 321, and transfer rod 322 can be thin iron wire simultaneously, transmits the displacement of sinker 321 to displacement sensor 323, thereby displacement sensor 323 gathers the displacement data of sinker 321 and obtains the impact data of the soil sample 50 that awaits measuring under the impact of impulse wheel 221.
It can be understood that the displacement sensor 323 is connected with an external device and transmits the impact data to the external device for collection, the external device can be an upper computer, and a signal converter can be arranged between the displacement sensor 323 and the external device, so that the impact data of the soil sample 50 to be detected can be monitored in real time through the external device.
Further, a through hole 34 is formed at the bottom of the mold box 30 corresponding to the position of the transmission rod 322, a protective sleeve 324 is arranged at the through hole 34, a protective cavity is formed in the protective sleeve 324, and the transmission rod 322 is arranged in the protective cavity in a penetrating manner. It can be appreciated that since the radius of the transmission rod 322 is generally small to maintain accuracy, a protective sleeve 324 is disposed at the perforation 34 at the bottom of the mold box 30 to protect the transmission rod 322 from being damaged by the impact of the soil sample 50 to be tested, protect the transmission rod 322, and prolong the service life of the transmission rod 322. Meanwhile, a rubber sleeve is disposed at the through hole 34 and sleeved outside the protective sleeve 324 to prevent the soil sample 50 to be tested in the mold box 30 from leaking out.
In one embodiment, a weight 325 is mounted on the transmission rod 322 near the displacement sensor 323. And a weight increasing block 325 is arranged on the transmission rod 322, so that the sensitivity and the accuracy of measurement are improved.
In an embodiment, an observation window 35 is opened on a side wall of the model box 30, a plurality of reference points 351 are arranged on the observation window 35, and the impact rolling model experiment apparatus 1 further includes a camera, which is arranged corresponding to the position of the observation window 35 and is used for shooting image data of the soil sample 50 to be measured. The observation window 35 is transparent plate to make the inside soil sample 50 that awaits measuring of model box 30 visual, set up the reference punctuation 351 on observation window 35 simultaneously, the motion condition of the soil sample 50 granule that awaits measuring is shot to the rethread high-speed camera, and the high-speed camera is connected with outside host computer, sends image data to the host computer in real time, and a plurality of reference punctuations 351 are as the benchmark of particle image velocimetry, increase the accuracy of result.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides an impact rolls model experiment device which characterized in that includes:
the circular track comprises a first guide rail and a second guide rail which are arranged at intervals up and down, and the first guide rail and the second guide rail are both circular guide rails;
the impact rolling module comprises a driving structure and an impact structure, the driving structure is mounted on the first guide rail and slides along the first guide rail, the impact structure is mounted on the second guide rail and moves along the second guide rail, and the driving structure is connected with the impact structure and is used for driving the impact structure to reciprocate along the second guide rail;
the model box is located below the second guide rail, an opening communicated with an inner cavity of the model box is formed in the top of the model box, a soil sample to be detected and a plurality of data acquisition assemblies buried at different depths of the soil sample to be detected are filled in the inner cavity of the model box, the second guide rail is disconnected corresponding to the position of the opening and forms a notch, so that the impact structure moves to one end of the notch, the impact structure drops to the inner cavity of the model box from one end of the notch to impact and roll the soil sample to be detected, the impact structure drives the impact structure to return to the second guide rail from the other end of the notch and move continuously along the second guide rail, and the data acquisition assemblies are used for acquiring impact data received by the soil sample to be detected.
2. The impact compaction model test apparatus of claim 1,
the second guide rail is provided with an annular supporting table, and the supporting table is disconnected at a position corresponding to the notch;
the driving structure comprises a driving part, a guide wheel and a connecting frame, the impact structure comprises an impact wheel and a supporting wheel, the driving part is mounted on the first guide rail, the guide wheel is in rolling contact fit with the second guide rail, the driving part is used for driving the guide wheel to roll along the second guide rail, the supporting wheel is in rolling contact fit with the supporting table, a wheel shaft of the impact wheel is connected with the supporting wheel, the bottom of the impact wheel is higher than the upper surface of the second guide rail, the impact wheel is hinged with the connecting frame through a connecting rod, the guide wheel and the driving part are both connected with the connecting frame, and the top of the model box is used for supporting the guide wheel when the guide wheel rolls to the opening.
3. The impact compaction model experimental apparatus according to claim 2, wherein the driving member comprises a rotary driving member, a sliding frame and a transmission assembly, the rotary driving member is mounted on the sliding frame, the sliding frame is engaged with the first guide rail in a sliding contact manner, the rotary driving member drives the guide wheel to rotate and roll along the second guide rail through the transmission assembly so as to drive the impact wheel and the sliding frame to move through the connecting frame, and a connecting plate is disposed at the top of the model box and corresponding to the opening and used for supporting the guide wheel when the guide wheel rolls to the opening.
4. The impact roller compaction model experiment device of claim 3, wherein the transmission assembly comprises a first synchronous pulley, a second synchronous pulley, a first synchronous belt and a second synchronous belt, the first synchronous belt is wound around the first synchronous pulley and the second synchronous pulley, the second synchronous belt is wound around the second synchronous pulley and the wheel shaft of the guide pulley, the rotary driving member is used for driving the first synchronous pulley to rotate and driving the second synchronous pulley to rotate through the first synchronous pulley, and the second synchronous pulley drives the guide pulley to rotate through the second synchronous belt.
5. The impact compaction model experiment device according to claim 2, wherein the support tables are formed with impact slopes at both ends of the opening, and both the impact slopes are disposed obliquely downward toward the opening.
6. The impact compaction model experiment device according to claim 2, wherein the impact compaction model experiment device further comprises a frame, the frame comprises a bottom frame and a plurality of pillars, the first guide rail and the second guide rail are connected with the bottom frame through the plurality of pillars, the plurality of pillars are arranged at intervals along the extending direction of the first guide rail and the second guide rail, the bottom frame and the second guide rail define a movable space, and the model box is movably installed in the movable space.
7. The impact rolling compaction model experiment device according to claim 6, wherein a support frame is arranged at the bottom of the model box, the annular rail is a track type guide rail, a slide rail extending along the width direction of the track type guide rail in the direction away from the annular rail is arranged in the movable space corresponding to the support frame, one end of the support frame is connected with the model box, and the other end of the support frame is provided with a pulley which is matched with the slide rail in a sliding contact manner.
8. The impact compaction model experimental device according to any one of claims 1 to 7, wherein each data acquisition assembly comprises a sinker, a transmission rod and a displacement sensor, the sinker is embedded in the soil sample to be measured, the displacement sensor is arranged below the model box, one end of the transmission rod is connected with the sinker, the other end of the transmission rod penetrates out of the model box and is connected with the displacement sensor, and the displacement sensor is used for detecting the displacement of the sinker so as to collect the impact data.
9. The impact rolling compaction model experimental device as claimed in claim 8, wherein a through hole is arranged at the bottom of the model box corresponding to the transmission rod, a protective sleeve is arranged at the through hole, a protective cavity is formed on the protective sleeve, and the transmission rod is arranged in the protective cavity in a penetrating manner; and/or the presence of a gas in the gas,
and a weight increasing block is arranged at the position of the transmission rod close to the displacement sensor.
10. The impact rolling compaction model experiment device according to any one of claims 1 to 7, wherein an observation window is formed in one side wall of the model box, a plurality of reference points are arranged on the observation window, and the impact rolling compaction model experiment device further comprises a camera which is arranged corresponding to the position of the observation window and is used for shooting image data of the soil sample to be tested through the observation window.
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| CN202222905533.7U CN218823709U (en) | 2022-11-01 | 2022-11-01 | Impact rolling model experimental device |
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