CN110441112B - A closely knit forming device of rock-fill body for collapsing unstability experiment - Google Patents
A closely knit forming device of rock-fill body for collapsing unstability experiment Download PDFInfo
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- CN110441112B CN110441112B CN201910835789.5A CN201910835789A CN110441112B CN 110441112 B CN110441112 B CN 110441112B CN 201910835789 A CN201910835789 A CN 201910835789A CN 110441112 B CN110441112 B CN 110441112B
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- 238000002474 experimental method Methods 0.000 title claims abstract description 25
- 239000004575 stone Substances 0.000 claims abstract description 140
- 230000000670 limiting effect Effects 0.000 claims abstract description 17
- 238000005056 compaction Methods 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 26
- 238000004064 recycling Methods 0.000 claims description 10
- 230000000717 retained effect Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000001687 destabilization Effects 0.000 claims 3
- 230000002829 reductive effect Effects 0.000 abstract description 6
- 239000011435 rock Substances 0.000 description 18
- 230000009471 action Effects 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000013112 stability test Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012613 in situ experiment Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/16—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths
- B65G21/18—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths in three-dimensionally curved paths
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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Abstract
The application discloses a rock-fill body compaction forming device for collapse instability experiments, which comprises a placing shell, an upper jacking cylinder and a supporting plate, wherein the upper end part of the jacking rod is connected with the bottom of the placing shell, a through hole is formed in the side wall of the placing shell, the supporting plate is in contact with the side wall of the placing shell, a side baffle is arranged on an adjusting conveying belt, a plurality of pushing cylinders are arranged on the bottom plate, a pushing cylinder is arranged on the supporting plate, a clamping plate is arranged at the output end of the pushing cylinder, a limiting plate is arranged at one end of a movable plate opposite to the pushing cylinder, limiting holes are formed in the two side walls of the movable plate, and the end parts of positioning pins movably penetrate through pin holes and then enter the limiting holes. According to the application, the stones can be effectively piled and formed, gaps among the stones are reduced to the greatest extent, the stability of the formed stones is improved, and the data obtained through experiments can provide powerful support for researching objective rules of influence of different piled forms of the stones on the stability of the stones under vibration conditions.
Description
Technical Field
The application relates to the field of collapse of secondary geological disasters, in particular to a self-stabilizing device for rapid accumulation molding of small discrete bodies, which is mainly used for a rapid fixing molding technology required by an indoor research collapse integrated stability test.
Background
The rock-fill collapse integrated mainly uses rock-fill, and is a natural geologic body which is formed by stacking the collapsed and slipped earthquake load on the slope toe to form different material structures, random stacking morphology and sudden slip collapse, and the unit body is a non-uniform and anisotropic medium-rock body with extremely complicated mechanical and hydraulic properties. The basic elements of the rock-fill collapse integrated are similar to those of the natural rock mass, and the rock-fill collapse integrated is a fractured rock mass which has various development sizes, is staggered and intersected after geological actions such as construction, weathering and unloading, and only has a lot of fully developed fractures more than the natural rock mass. Various fissures divide the natural rock mass into a number of rock masses, forming a rock-fill collapse assembly. Because each part of rock mass is unstable and numerous, once the stability is destroyed, the rock mass can roll down to the periphery under the action of gravity, thereby being extremely easy to cause safety accidents for nearby people and roads and paralysis of surrounding power equipment. The collapse instability of the accumulation body is one of the most common geological disasters in mountain areas, and the experimental method of the collapse body is divided into an outdoor experiment and an indoor experiment; the outdoor experiment is an in-situ experiment, the indoor experiment is a simplified simulation experiment, and the indoor experiment has the advantages of being capable of simulating a complex loading path and an accurate measuring system, safe in experimental places and convenient to experiment. The method can be used for researching the objective rule of influence of different stacking forms of the rockfill collapse integrated on the stability of the rockfill collapse integrated under the vibration condition, is an important research direction for solving the problems of engineering construction, disaster prevention early warning of secondary geological disasters and the like, and has important theoretical guiding significance and engineering practical value for disaster source stability evaluation, and effective slip precursor identification and disaster critical judgment are realized.
Disclosure of Invention
The application aims to provide a rock-fill compact forming device for a collapse instability experiment, which is used for realizing rapid forming of a rock-fill collapse integrated body so as to ensure the accuracy of experimental data obtained when simulating the collapse instability experiment of the accumulation body. The application is realized by the following technical scheme:
the rock-fill body compaction forming device for collapse instability experiments comprises a placing shell, an upper jacking cylinder and a supporting plate, wherein an ejector rod is connected to the output end of the vertically placed upper jacking cylinder, the upper end of the ejector rod is connected with the bottom of the placing shell, a through hole is formed in the side wall of the placing shell, the supporting plate is in contact with the side wall of the placing shell, and the upper surface of the supporting plate is flush with the bottom surface of the through hole; the automatic feeding device is characterized by further comprising an adjusting conveyor belt and a bottom plate which are positioned at the same horizontal position with the supporting plate, wherein a side baffle is arranged on the adjusting conveyor belt, a plurality of pushing cylinders are arranged on the bottom plate, the axis of the output end of each pushing cylinder is perpendicular to the transmission direction of the adjusting conveyor belt, a push plate is arranged at the output end of each pushing cylinder, the supporting plate is provided with the pushing cylinder, the output end of each pushing cylinder is provided with a clamping plate, the bottom surface of each through hole is provided with a rectangular groove with two open ends, the movable plate is arranged in the rectangular groove in a sliding manner, one end of the movable plate opposite to the pushing cylinder is provided with a limiting plate, the end of each through hole is completely shielded by the limiting plate, two sides of the placing shell are respectively provided with a pin hole, limiting holes centered with the pin holes are respectively formed in the two side walls of the movable plate, and the end parts of the locating pins movably penetrate through the pin holes and then enter the limiting holes; when the device is used, a plurality of stones are placed on the adjusting conveyor belt, the pushing plate is driven by the pushing cylinder to push the stones into the supporting plate, the pushing plate continues to move until the stones are pushed into the appointed position in the through hole, the output end of the pushing cylinder is retracted, then the pushing cylinder drives the clamping plate to push the stones remained on the supporting plate out of the supporting plate, the steps are repeated until the stones are fully paved on the bottom surface of the through hole, the jacking cylinder is adjusted, the ejector rod drives the placing shell to move downwards until the upper surface of the supporting plate is flush with the upper surface of the paved stones, and the pushing procedure of a plurality of stones on the adjusting conveyor belt is repeated again until the inside of the whole through hole is completely filled. In the indoor study of objective rules of influence of different stacking forms of the rock-fill collapse integrated on stability under vibration conditions, the rock blocks are required to be stacked to be in different forms, generally, prefabricated rectangular concrete blocks are manually stacked and formed, but a large amount of labor time is required to be consumed in the stacking process, and the formed rock-fill body has larger gaps between blocks and between layers, so that the accuracy of experimental data obtained in the experimental process is reduced, and the experimental requirements cannot be met; in this regard, the applicant designs a fast placement structure of the rock blocks, which can effectively stack and form the rock blocks, reduce gaps among the rock blocks to the greatest extent, increase stability of the formed rock blocks, and ensure that experimental data can provide powerful support for objective rules of influence on stability of different stacking forms of the rock blocks under vibration conditions.
When the method is specifically operated, the stones are sequentially placed on the adjusting conveyor belt, after the stones are placed in rows, the pushing cylinders on the bottom plate are started, the pushing plate drives the row of stones to move to the supporting plate, the pushing cylinders are adjusted to enable the lower surfaces of the through holes on the side walls of the placing shell to be flush with the upper surfaces of the supporting plate, the pushing cylinders continue to move, a plurality of stones enter the through holes at the same time, the width of the through holes is limited, so that part of stones can not enter the through holes on the supporting plate, after the plurality of pushing cylinders push the stones corresponding to the stones to the designated positions of the through holes, all pushing cylinders are reset, the pushing cylinders start to work, the clamping plate is driven to clear the stones retained on the supporting plate, and after the pushing cylinders are reset, the executing actions are repeated until the stones are completely paved on the bottom surfaces of the through holes; readjusting the jacking cylinder to enable the upper surface of the stone layer positioned at the bottommost layer to be flush with the upper surface of the supporting plate, and likewise, ensuring that the stone blocks are stacked in the through holes layer by continuously adjusting the pushing cylinder, the pushing cylinder and the jacking cylinder; and after all the stones are piled up, the fixing of the locating pins to the movable plate is released, then the movable plate is moved out of the through holes, and the formed stone pile body is integrally moved onto an experimental apparatus through lifting equipment, so that the stability test of the stone pile body under the vibration condition is realized. Through adjusting the cooperation of conveyer belt, propulsion cylinder and propulsion cylinder, can realize the quick of stone in the through-hole and put the characteristic that the casing can go up and down, and utilize to put the casing and go up and down for the stone is superimposed in the through-hole inside by layer, wherein according to the experimental requirement, the through-hole can take multiple different shapes to provide abundant sample for the experiment, and the rock-fill body after the shaping can realize the change of position through transporting the fly leaf, compares with traditional manual stacking mode, has shortened the time of stacking of stone greatly, has improved stacking efficiency; and when the number of the stones in each row in each layer in the through hole is different, before the stones in the row enter the through hole, the corresponding positions between the stones in the row and the through hole can be adjusted by adjusting the conveying belt, so that the number of the stones entering the through hole reaches the maximum value, and meanwhile, the tight contact between the stones is ensured.
It is further pointed out that when the propulsion cylinder is propelled each time, the stone block needs to be moved to the appointed position of the through hole, and when the propulsion, the movable plate is fixed at the bottom of the through hole by the locating pin, and the end of the through hole opposite to the supporting plate is shielded by the limiting plate, namely, the stone block entering the through hole can effectively block the stone block from moving out of the through hole when the stone block is propelled to the appointed position by the propulsion cylinder, and further, the stone block can be ensured to fill the through hole.
And a main air bag matched with the through hole is attached to the inner wall of the through hole. Further, after the stacking of the stones is completed, the main air bags on the inner walls of the through holes can squeeze the stone stacking bodies after injecting gas, so that gaps existing between each stone block are eliminated, external interference factors when the stone stacking bodies collapse under the vibration condition are eliminated, and the reliability of experimental data is ensured.
The outer wall of the main air bag is sequentially provided with a primary air bag and a secondary air bag, the primary air bag is composed of a plurality of mutually communicated rectangular primary air bags, the secondary air bag is composed of a plurality of mutually communicated rectangular secondary air bags, and when the primary air bag and the secondary air bags are fully spread, the width of the primary air bags is larger than that of the secondary air bags. Further, when the shape of the rock-fill body is not a standard cube, the through holes cannot be completely filled with the rock-fill body, partial rock-fill bodies are prone to dislocation when the main air bag extrudes the rock-fill body, and the formed rock-fill body is deformed finally.
The longitudinal section of the through hole is rectangular, semicircular or triangular. Preferably, the longitudinal section shape of the through hole can be rectangular, semicircular or triangular, so that the collapse instability condition of the rock-fill body in a natural state is simulated under the vibration condition of the rock-fill body in an indoor experiment.
The automatic feeding device is characterized by further comprising a feeding cylinder with an open upper end and a conveying belt, wherein a discharge hole communicated with the inside of the feeding cylinder is formed in the outer side wall of the feeding cylinder, the discharge hole is in butt joint with one end of the conveying belt, the other end of the conveying belt is in butt joint with the adjusting conveying belt, a separation plate is arranged in the feeding cylinder and divides the feeding cylinder into an upper part and a lower part, a round table is arranged on the upper part of the feeding cylinder, a shifting fork is arranged at the lower end of the outer wall of the round table, a driving shaft is arranged at the bottom of the round table, the driving shaft sequentially and movably penetrates through the separation plate and the bottom of the feeding cylinder and then extends downwards, the small-diameter end of the round table is opposite to the open end of the feeding cylinder, a spiral conveying belt is arranged at the lower part of the feeding cylinder, a feeding hole communicated with the inlet at the upper end of the spiral conveying belt is formed in the separation plate, the lower end of the spiral conveying belt is communicated with the discharge hole, and an electromagnetic valve for sealing the discharge hole is arranged in the discharge hole. Further, the technical scheme is also provided with a material conveying cylinder, when the material conveying cylinder is used, a plurality of stones are placed in the material conveying cylinder, a driving shaft is driven to rotate by an external motor, the round table and the shifting fork start to drive the stones in the material conveying cylinder to move, the stones enter the spiral conveying belt through the material feeding port under the driving of the shifting fork, enter the conveying belt through the material discharging port, the conveying belt conveys the stones onto the adjusting conveying belt, and when the stones on the adjusting conveying belt are placed, the next operation is executed by the propelling cylinder; after the stone blocks enter the feeding holes through stirring of the shifting fork, the stone blocks sequentially pass through the spiral conveying belt and the conveying belt and then move onto the adjusting conveying belt, the adjusting conveying belt can finely adjust the initial positions of the stone blocks arranged in a row, and the fact that the stone blocks can reasonably occupy the inner space of the through hole is guaranteed.
The side wall of the material conveying cylinder is provided with a material returning opening communicated with the upper part of the material conveying cylinder, a recycling conveyor belt is arranged between the material returning opening and the end part of the supporting plate, and when the pushing cylinder drives the clamping plate to push out the stone retained in the supporting plate from the supporting plate, the stone enters the recycling conveyor belt, and the recycling conveyor belt conveys the stone into the material conveying cylinder. Further, the stones retained on the supporting plate are pushed onto the recovery conveyor belt by the clamping plates, and are conveyed into the material conveying cylinder by the recovery conveyor belt, so that the stones retained on the supporting plate are prevented from interfering with the normal operation of the pushing cylinder, and the stones are ensured to be stacked orderly.
The separating plate is also provided with a transition groove communicated with the feeding hole, the transition groove is arc-shaped, a circle where the transition groove is located is concentric with the separating plate, and the groove depth of the transition groove increases progressively along the rotating direction of the round table. Further, in order to ensure that the stone blocks can quickly enter the feeding hole, the idle running probability of the round table and the shifting fork is reduced, the technical scheme is that the upper surface of the isolation plate is provided with the transition groove, the groove depth of the transition groove increases gradually along the rotation direction of the round table, when the shifting fork drives the stone blocks to rotate in the feeding cylinder, before the shifting fork passes through the transition groove, the stone blocks slide into the transition groove, the transition groove can guide and limit the stone blocks, and the stone blocks are prevented from rotating in the feeding cylinder all the time and cannot normally perform blanking under the mutual extrusion action between the stone blocks.
Screw holes are formed in the bottom surface of the placement shell, and threads matched with the screw holes are formed in the outer circumferential wall of the upper section of the ejector rod. Preferably, the number of through holes on the placing shell is relatively flexible, the through holes can be set to be single and also can be set to be multiple, when the number of the through holes is set to be multiple, the through holes are sequentially arranged on the same side wall of the placing shell from top to bottom, the shape of each through hole is different, and the rock-fill bodies with different shapes can be formed on the same placing shell; when the through holes in the placing shell are arranged to be single, when the rock-fill bodies with different shapes are formed, the butt joint between the jacking cylinder and the placing shell can be realized only by rotating the relative positions of the placing shell and the ejector rod, and meanwhile, the load of the jacking cylinder when rock blocks are placed layer by layer can be reduced.
Compared with the prior art, the application has the following advantages and beneficial effects:
1. according to the application, the stones can be effectively piled and formed, gaps among the stones are reduced to the greatest extent, the stability of the formed stones is improved, and the data obtained by experiments can provide powerful support for researching objective rules of influence of different piled forms of the stones on the stability of the stones under vibration conditions;
2. according to the application, the primary air bag is arranged on the inner side wall of the main air bag, the secondary air bag is arranged on the inner side wall of the primary air bag, and after the primary air bag and the secondary air bag are completely spread, the width of the primary air bag is larger than that of the secondary air bag, namely, different rock-fill bodies can be effectively extruded aiming at through holes with different shapes, and meanwhile, the deformation of the rock-fill bodies can be effectively avoided by inflating the main air bag, the primary air bag and the secondary air bag step by step;
3. according to the application, the transition groove is formed in the upper surface of the isolation plate, the groove depth of the transition groove increases gradually along the rotation direction of the round table, when the shifting fork drives the lump stone to rotate in the material conveying cylinder, before the shifting fork passes through the transition groove, the lump stone slides into the transition groove, the transition groove can guide and limit the lump stone, and the lump stone is prevented from rotating in the material conveying cylinder all the time under the mutual extrusion action between the lump stone and the lump stone, so that the blanking can not be normally performed.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a top view of the present application;
FIG. 3 is a schematic view of a structure of the placement housing;
FIG. 4 is a schematic structural view of an airbag;
FIG. 5 is a schematic view of the structure of a feed delivery cartridge;
fig. 6 is a schematic structural view of the separator.
In the drawings, the reference numerals and corresponding part names:
1-placing shell, 2-conveying cylinder, 3-recycling conveyor belt, 4-conveyor belt, 5-pushing cylinder, 6-bottom plate, 7-pushing plate, 8-stone, 9-side baffle, 10-adjusting conveyor belt, 11-base, 12-top cylinder, 13-supporting plate, 14-ejector rod, 15-pushing cylinder, 16-clamping plate, 17-through hole, 18-movable plate, 19-isolation plate, 20-round platform, 21-main air bag, 22-primary air bag, 23-secondary air bag, 24-screw hole, 25-locating pin, 26-feeding hole, 27-shifting fork, 28-spiral conveyor belt, 29-driving shaft, 30-discharge hole, 31-electromagnetic valve and 32-transition groove.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present application, the present application will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present application and the descriptions thereof are for illustrating the present application only and are not to be construed as limiting the present application.
Example 1
As shown in fig. 1 to 6, the embodiment comprises a placement shell 1, an upper top cylinder 12 and a support plate 13, wherein an ejector rod 14 is connected to the output end of the vertically placed upper top cylinder 12, the upper end part of the ejector rod 14 is connected with the bottom of the placement shell 1, a through hole 17 is formed in the side wall of the placement shell 1, the support plate 13 is in contact with the side wall of the placement shell 1, and the upper surface of the support plate 13 is flush with the bottom surface of the through hole 17; still include with the regulation conveyer belt 10, the bottom plate 6 that backup pad 13 is in same horizontal position, and be equipped with side shield 9 on adjusting the conveyer belt 10, be equipped with a plurality of propulsion cylinders 5 on the bottom plate 6, the axis of propulsion cylinder 5 output with the transmission direction of adjusting the conveyer belt 10 is mutually perpendicular, and is at every all be equipped with push pedal 7 on the output of propulsion cylinder 5, be equipped with on backup pad 13 and promote cylinder 15, and be equipped with cardboard 16 on promotion cylinder 15 output the rectangular channel that both ends are open is opened to the through-hole 17 bottom surface, and fly leaf 18 slides and sets up in the rectangular channel, and is equipped with the limiting plate at the one end of fly leaf 18 back to promotion cylinder 15, and the limiting plate is with the tip of through-hole 17 completely shelters from, puts the both sides of casing 1 and is equipped with the pinhole respectively, opens respectively with the spacing hole in the pinhole centering on the both sides wall of fly leaf 18, enters into in the spacing hole after the locating pin 25 tip activity runs through the pinhole.
When stacking, the stones 8 are sequentially placed on the adjusting conveyor belt 10, after the stones 8 are placed in rows, the pushing cylinders 5 on the bottom plate 6 are started, the pushing plate 7 drives the row of stones 8 to move to the supporting plate 13, through the adjustment of the upper top cylinder 12 on the upper surface of the base 11, the lower surface of the through hole 17 on the side wall of the placing shell 1 is flush with the upper surface of the supporting plate 13, the pushing cylinders 5 continue to move, so that a plurality of stones 8 enter the through hole 17 at the same time, the width of the through hole 17 is limited, so that part of stones 8 can not enter the through hole 17 on the supporting plate 13, after the corresponding stones 8 are pushed to the designated positions of the through hole 17 by the pushing cylinders 5, all pushing cylinders 5 are reset, the pushing cylinders 15 start to work, and then the clamping plate 16 is driven to clean the stones 8 retained on the supporting plate 13, after the pushing cylinders 15 are reset, the execution actions are repeated until the upper stones 8 are completely paved on the bottom surface of the through hole 17; readjusting the jacking cylinder 12 so that the upper surface of the layer of the stone block 8 positioned at the bottommost layer is flush with the upper surface of the supporting plate 13, and likewise, ensuring that the stone block 8 is stacked in the through hole 17 layer by continuously adjusting the pushing cylinder 5, the pushing cylinder 15 and the jacking cylinder 12; after all the stones 8 are piled up, the fixing of the locating pins 25 to the movable plate 18 is released, then the movable plate 18 is moved out of the through holes 17, and the formed stone pile is integrally moved to an experimental apparatus through lifting equipment, so that the stability test of the stone pile under the vibration condition is realized. Through adjusting the cooperation of the conveyor belt 10, the pushing cylinder 5 and the pushing cylinder 15, the rapid placement of the stone blocks 8 in the through holes 17 can be realized, and the stone blocks 8 are stacked in the through holes 17 layer by utilizing the characteristic that the placement shell 1 can be lifted, wherein according to experimental requirements, the through holes 17 can take various different shapes so as to provide abundant samples for experiments, and the formed stone blocks can realize the position change through the transfer movable plate 18; and, when the number of the stones 8 of each row in each layer in the through hole 17 is different, the corresponding position between the row of stones 8 and the through hole 17 can be adjusted by adjusting the conveyor belt 10 before the row of stones 8 enter the through hole 17, so that the number of stones 8 entering the through hole 17 reaches the maximum value, and at the same time, the tight contact between each stone 8 is ensured.
It should be further noted that, when the pushing cylinder 5 is pushed in each time, the stone block 8 needs to move to the designated position of the through hole 17, and when the pushing cylinder is pushed in, the movable plate 18 is fixed at the bottom of the through hole 17 by the positioning pin 25, and the end of the through hole 17 opposite to the supporting plate 13 is blocked by the limiting plate, that is, when the stone block 8 entering into the through hole 17 is pushed to the designated position by the pushing cylinder 5, the limiting plate can effectively block the stone block 8 from moving out of the through hole 17, so that the filling of the through hole 17 by the stone block 8 is ensured to be completed.
Preferably, in this embodiment, at least two blind holes are further formed in the end face of the movable plate 18, the open end ports of the blind holes and the limiting plate are located on the same side of the movable plate 18, and the axial depth of the blind holes is two thirds of the length of the movable plate 18, i.e. after the rock-fill body is formed, the quick transfer of the rock-fill body can be achieved after the limitation of the positioning pins 25 is released by using external lifting devices, such as fork trucks or vertical lifts, to cooperate with the blind holes.
Preferably, the longitudinal section of the through hole 17 may be rectangular, semicircular or triangular, so as to satisfy the condition that the rock-fill body of the indoor experiment simulates collapse instability of the rock-fill body in a natural state under vibration conditions.
Preferably, a screw hole 24 is formed in the bottom surface of the placement housing 1, and a screw thread matched with the screw hole 24 is formed on the outer circumferential wall of the upper section of the ejector rod 14. The number of the through holes 17 on the placing shell 1 is relatively flexible, the through holes can be set to be single and also can be set to be multiple, when the number of the through holes 17 is set to be multiple, the through holes 17 are sequentially arranged on the same side wall of the placing shell 1 from top to bottom, the shape of each through hole 17 is different, and the rock stacking bodies with different shapes can be formed on the same placing shell 1; when the through holes 17 on the placing shell 1 are arranged singly, when the rock-fill bodies with different shapes are formed, the butt joint between the jacking cylinder 12 and the placing shell 1 can be realized only by rotating the relative positions of the placing shell 1 and the ejector rod 14, and meanwhile, the load of the jacking cylinder 12 when the rock blocks 8 are placed layer by layer can be reduced.
Example 2
As shown in fig. 1 to 6, in this embodiment, on the basis of embodiment 1, a main airbag 21 matching with the through hole 17 is attached to the inner wall of the through hole 17; the outer wall of the main airbag 21 is sequentially provided with a primary airbag 22 and a secondary airbag 23, the primary airbag 22 is composed of a plurality of mutually communicated rectangular primary airbags, the secondary airbag 23 is composed of a plurality of mutually communicated rectangular secondary airbags, and when the primary airbag 22 and the secondary airbag 23 are fully spread, the width of the primary airbags is larger than that of the secondary airbags.
Before the stones 8 start to accumulate, the main air bags 21 on the inner wall of the through holes 17 are in a semi-inflated state when gas is injected; when the stones 8 are piled up, the main air bags 21 on the inner wall of the through hole 17 are in an extrusion state on the rock pile body, so that gaps existing between each stone 8 are eliminated; after stacking of the stones 8 is completed, the main air bags 21 on the inner wall of the through hole 17 can squeeze the stones after injecting gas, so that gaps existing between each stone 8 are eliminated, external interference factors when the stones collapse under vibration conditions are eliminated, and reliability of experimental data is ensured; when the shape of the rock-fill body is not a standard cube, the through holes 17 cannot be completely filled with the rock-fill body, partial rock-fill bodies 8 are easily misplaced when the main air bags 21 squeeze the rock-fill body, and the formed rock-fill body is deformed finally, therefore, the primary air bags 22 are arranged on the inner side walls of the main air bags 21, the secondary air bags 23 are arranged on the inner side walls of the primary air bags 22, and after the primary air bags 22 and the secondary air bags 23 are completely spread, the width of the primary air bags is larger than that of the secondary air bags, namely, through holes 17 with different shapes, the rock-fill body can be effectively squeezed, and meanwhile, the deformation of the rock-fill body can be effectively avoided by inflating the main air bags 21, the primary air bags 22 and the secondary air bags 23 step by step.
Example 3
As shown in fig. 1 to 6, the embodiment further comprises a feeding cylinder 2 with an open upper end and a conveying belt 4 on the basis of embodiment 1, wherein a discharge port 30 communicated with the inside of the feeding cylinder 2 is arranged on the outer side wall of the feeding cylinder 2, the discharge port 30 is in butt joint with one end of the conveying belt 4, the other end of the conveying belt 4 is in butt joint with the adjusting conveying belt 10, a separation plate 19 is arranged in the feeding cylinder 2, the separation plate 19 divides the feeding cylinder 2 into an upper part and a lower part, a round table 20 is arranged at the upper part of the feeding cylinder 2, a shifting fork 27 is arranged at the lower end of the outer wall of the round table 20, a driving shaft 29 is arranged at the bottom of the round table 20, the driving shaft 29 sequentially penetrates through the separation plate 19 and the bottom of the feeding cylinder 2 and then extends downwards, the small diameter end of the round table 20 is opposite to the open end of the feeding cylinder 2, a spiral conveying belt 28 is arranged at the lower part of the feeding cylinder 2, a feeding hole 26 communicated with the upper end of the spiral conveying belt 28 is arranged on the separation plate 19, the lower end outlet of the spiral conveying belt 28 is communicated with the discharge port 30, and a solenoid valve 31 is arranged in the discharge port 30; the side wall of the material conveying cylinder 2 is provided with a material return opening communicated with the upper part of the material conveying cylinder 2, a recycling conveyor belt 3 is arranged between the material return opening and the end part of the supporting plate 13, when the pushing cylinder 15 drives the clamping plate 16 to push the stone block 8 retained on the supporting plate 13 out of the supporting plate 13, the stone block 8 enters the recycling conveyor belt 3, and the recycling conveyor belt 3 conveys the stone block 8 into the material conveying cylinder 2.
In this embodiment, a feeding cylinder 2 is further provided, when in use, a plurality of stones 8 are placed in the feeding cylinder 2, a driving shaft 29 is driven to rotate by an external motor, the round table 20 and a shifting fork 27 start to drive the stones 8 in the feeding cylinder 2 to move, the stones 8 enter a spiral conveyor belt 28 through a feeding port under the driving of the shifting fork 27, enter the conveyor belt 4 through a discharging port 30, the conveyor belt 4 transfers the stones 8 onto an adjusting conveyor belt 10, when the stones 8 on the adjusting conveyor belt 10 are placed, an electromagnetic valve 31 is closed, the round table 20 stops rotating, and then the next operation is executed by a pushing cylinder 5; after the stones 8 enter the feeding holes 26 through stirring of the shifting fork 27, the stones pass through the spiral conveyor belt 28 and the conveyor belt 4 in sequence and then move onto the adjusting conveyor belt 10, the initial positions of the stones 8 arranged in a row can be finely adjusted by the adjusting conveyor belt 10, and the stones 8 can be ensured to occupy the inner space of the through holes 17 reasonably. The stones 8 retained on the supporting plate 13 are pushed onto the recovery conveyor belt 3 by the clamping plates 16, and are conveyed into the material conveying cylinder 2 by the recovery conveyor belt 3, so that the stones 8 retained on the supporting plate 13 are prevented from interfering with the normal operation of the pushing cylinder 5, and the stones 8 are ensured to be stacked and orderly carried out.
In this embodiment, the partition plate 19 is further provided with a transition groove 32 that is communicated with the feeding hole 26, the transition groove 32 is in a circular arc shape, a circle where the transition groove 32 is located is concentric with the partition plate 19, and a groove depth of the transition groove 32 increases progressively along the rotation direction of the circular table 20. In order to ensure that the stone blocks 8 can quickly enter the feeding holes 26 and reduce the idle running probability of the round table 20 and the shifting fork 27, the technical scheme is that the upper surface of the isolation plate 19 is provided with the transition grooves 32, the groove depth of the transition grooves 32 increases gradually along the rotation direction of the round table 20, when the shifting fork 27 drives the stone blocks 8 to rotate in the feeding cylinder 2, before the shifting fork 27 passes through the transition grooves 32, the stone blocks 8 slide into the transition grooves 32, the transition grooves 32 can guide and limit the stone blocks 8, and the phenomenon that the stone blocks 8 always rotate in the feeding cylinder 2 under the mutual extrusion action between the stone blocks 8 and the stone blocks 8 so as not to normally feed is avoided.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (6)
1. A compact rock-fill body forming device for collapse unstability experiment, including putting casing (1), go up top cylinder (12) and backup pad (13), be connected with ejector pin (14) on the last top cylinder (12) output of vertical placing, ejector pin (14) upper end is connected with the bottom of putting casing (1), its characterized in that: a through hole (17) is formed in the side wall of the placing shell (1), the supporting plate (13) is in contact with the side wall of the placing shell (1), and the upper surface of the supporting plate (13) is flush with the bottom surface of the through hole (17); the automatic feeding device is characterized by further comprising an adjusting conveyor belt (10) and a bottom plate (6) which are positioned at the same horizontal position with the supporting plate (13), wherein a side baffle plate (9) is arranged on the adjusting conveyor belt (10), a plurality of pushing cylinders (5) are arranged on the bottom plate (6), the axis of the output end of each pushing cylinder (5) is perpendicular to the transmission direction of the adjusting conveyor belt (10), a push plate (7) is arranged at the output end of each pushing cylinder (5), a pushing cylinder (15) is arranged on the supporting plate (13), a clamping plate (16) is arranged at the output end of each pushing cylinder (15), rectangular grooves with two open ends are formed in the bottom surface of each through hole (17), a movable plate (18) is arranged in the rectangular grooves in a sliding mode, one end, opposite to the pushing cylinder (15), of each movable plate (18) is provided with a limiting plate, the end of each through hole (17) is completely blocked, two sides of a placing shell (1) are respectively provided with pin holes, the two side walls of each movable plate (18) are respectively provided with limiting holes aligned with the pin holes, and the end of each locating pin (25) penetrates through the pin holes into the limiting holes; when the device is used, a plurality of stones (8) are placed on the adjusting conveyor belt (10), the pushing cylinder (5) drives the pushing plate (7) to push the stones (8) into the supporting plate (13), the pushing plate (7) continues to move until the stones (8) are pushed into the appointed position in the through hole (17), the output end of the pushing cylinder (5) is retracted, then the pushing cylinder (15) drives the clamping plate (16) to push the stones (8) remained on the supporting plate (13) out of the supporting plate (13), the steps are repeated until the stones (8) fully fill the bottom surface of the through hole (17), the top cylinder (12) is adjusted, so that the ejector rod (14) drives the placing shell (1) to move downwards until the upper surface of the supporting plate (13) is flush with the upper surface of the paved stones (8), and the pushing procedure of the stones (8) on the adjusting conveyor belt (10) is repeated again until the inside of the whole through hole (17) is completely filled;
a main air bag (21) matched with the through hole (17) is attached to the inner wall of the through hole (17);
the outer wall of the main air bag (21) is sequentially provided with a primary air bag (22) and a secondary air bag (23), the primary air bag (22) is composed of a plurality of mutually communicated rectangular primary air bags, the secondary air bag (23) is composed of a plurality of mutually communicated rectangular secondary air bags, and after the primary air bag (22) and the secondary air bag (23) are fully spread, the width of the primary air bag is larger than that of the secondary air bag.
2. The compaction forming device for the rock-fill body for collapse instability experiments according to claim 1, wherein the compaction forming device is characterized in that: the longitudinal section of the through hole (17) is rectangular, semicircular or triangular.
3. The compaction forming device for the rock-fill body for collapse instability experiments according to claim 1, wherein the compaction forming device is characterized in that: still include the open defeated feed cylinder (2) of upper end and conveyer belt (4) be equipped with on the lateral wall of defeated feed cylinder (2) rather than inside discharge gate (30) of intercommunication, discharge gate (30) and the one end butt joint of conveyer belt (4), the other end of conveyer belt (4) with adjust conveyer belt (10) butt joint be equipped with division board (19) in defeated feed cylinder (2), division board (19) will defeated feed cylinder (2) separate into upper and lower two parts, and be provided with round platform (20) on the upper portion of defeated feed cylinder (2), be equipped with shift fork (27) at round platform (20) outer wall lower extreme, round platform (20) bottom is equipped with drive shaft (29), and drive shaft (29) activity runs through division board (19), defeated feed cylinder (2) bottom back downwardly extending in proper order, just the minor diameter end of round platform (20) just be equipped with spiral conveyer belt (28) in the lower part of defeated feed cylinder (2), be equipped with on division board (19) with on spiral conveyer belt (28) with spiral conveyer belt (26) upper end entry (26), be equipped with spiral conveyer belt (30) and be equipped with discharge gate (30) in discharge gate (30) and discharge gate intercommunication.
4. A dense rock-fill body forming device for collapse destabilization experiments according to claim 3, characterized in that: the side wall of the material conveying cylinder (2) is provided with a material returning opening communicated with the upper part of the material conveying cylinder (2), a recycling conveyor belt (3) is arranged between the material returning opening and the end part of the supporting plate (13), when the pushing cylinder (15) drives the clamping plate (16) to push out the stone blocks (8) retained on the supporting plate (13) from the supporting plate (13), the stone blocks enter the recycling conveyor belt (3), and the recycling conveyor belt (3) conveys the stone blocks (8) into the material conveying cylinder (1).
5. A dense rock-fill body forming device for collapse destabilization experiments according to claim 3, characterized in that: the separation plate (19) is also provided with a transition groove (32) communicated with the feeding hole (26), the transition groove (32) is in a circular arc shape, a circle where the transition groove (32) is positioned is concentric with the separation plate (19), and the groove depth of the transition groove (32) increases gradually along the rotation direction of the round table (20).
6. The compaction forming device for the rock-fill body for collapse destabilization experiments according to any one of claims 1 to 5, characterized in that: screw holes (24) are formed in the bottom surface of the placement shell (1), and threads matched with the screw holes (24) are formed in the outer circumferential wall of the upper section of the ejector rod (14).
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| CN201910835789.5A CN110441112B (en) | 2019-09-05 | 2019-09-05 | A closely knit forming device of rock-fill body for collapsing unstability experiment |
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| CN113634352A (en) * | 2021-10-19 | 2021-11-12 | 江苏天沃重工科技有限公司 | Feeding device for sand making of construction solid waste garbage |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792945A (en) * | 2015-05-07 | 2015-07-22 | 武汉大学 | Rockfill scouring simulation experiment device and experimental data acquisition method |
| WO2016107360A1 (en) * | 2014-12-31 | 2016-07-07 | 东北大学 | Adjustable multifunctional fractured rock mass collapse-slide testing device and use method therefor |
| CN109900791A (en) * | 2019-03-28 | 2019-06-18 | 西南石油大学 | A kind of avalanche rockfill unstable failure simulator |
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2019
- 2019-09-05 CN CN201910835789.5A patent/CN110441112B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016107360A1 (en) * | 2014-12-31 | 2016-07-07 | 东北大学 | Adjustable multifunctional fractured rock mass collapse-slide testing device and use method therefor |
| CN104792945A (en) * | 2015-05-07 | 2015-07-22 | 武汉大学 | Rockfill scouring simulation experiment device and experimental data acquisition method |
| CN109900791A (en) * | 2019-03-28 | 2019-06-18 | 西南石油大学 | A kind of avalanche rockfill unstable failure simulator |
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