CN109300378A - A kind of rotatable Equivalent Materials Testing device and test method - Google Patents
A kind of rotatable Equivalent Materials Testing device and test method Download PDFInfo
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- CN109300378A CN109300378A CN201811386851.9A CN201811386851A CN109300378A CN 109300378 A CN109300378 A CN 109300378A CN 201811386851 A CN201811386851 A CN 201811386851A CN 109300378 A CN109300378 A CN 109300378A
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- analog material
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- testing device
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/40—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for geology
Abstract
The invention discloses a kind of rotatable Equivalent Materials Testing device and test method, which includes: frame, including bottom plate and column, and the surrounding of bottom plate is arranged in column；Testing stand, it is rotatably mounted on the middle position of frame, testing stand includes analog material filling slot, pressurized cylinder and casing member, casing member is symmetricly set on the front and rear sides of analog material filling slot, casing member includes multiple strip-shaped baffles, multiple strip-shaped baffles are sequentially overlapped placement along the short transverse of analog material filling slot, and the top of top layer's strip-shaped baffle is arranged in pressurized cylinder, and analog material filling slot is laid with analog material for filling；Circle is swung, the outside of testing stand is fixed at；Driving mechanism swings circle relative to frame one set angle of rotation for driving.The present invention is able to achieve accurate, the automatic rotation of testing stand, can deformation, destruction and inbreak process to seam mining overlying strata simulate, and simple to operate, test result accuracy is high.
Description
Technical field
The present invention relates to mechanical test system technical field more particularly to a kind of rotatable Equivalent Materials Testing devices
And test method.
Background technique
Equivalent Materials Testing is with artificial material similar with natural rock (soil) physico-mechanical properties, by mine
The actual prototype of matter condition, it then follows certain proportion diminution is made into model, then carries out experimental study, observation test knot in a model
Fruit, to speculate the case where scene actually occurs.Severe inclined thick coal seam is widely distributed in China, exploits difficulty greatly and accident frequency
Hair, reason are deeply effectively to be studied currently without to half-edge coal seam, can not form mature theoretical system.And phase
It is the necessary test apparatus studied half-edge coal seam like material simulation testing stand.
Currently, most of Equivalent Materials Testing platforms, only carry out the simulation test of horizontal seam, it is similar due to being laid with
Material has difficulty, can not simulate inclination, half-edge coal seam.It can be seen that the existing technology needs further improvement and mentions
It is high.
In the prior art, application No. is: the Chinese utility model patent of 201320178389X discloses a kind of rotatable phase
Like material simulation testing stand comprising cuboid tests frame, bracket and the swing circle positioned at cuboid test frame side,
It swings and is evenly arranged with handle and graduation mark on circle, intersect on cuboid test frame and be provided with two connecting rods, connecting
The intersection of bar is provided with turn trough, and turn trough at connecting shaft and the center for swinging circle by being connected.It is needing to inclination or urgency
When inclined seam is simulated, can rotate handle makes to swing circle rotation, swings circle and drives cuboid to test frame by connecting shaft
Frame is rotated, which can realize that overlying strata and floor strata are existing close to the force simulation of actual conditions
Mine pressure variation prediction after field tilt or steeply-inclined seam mining is laid a good foundation.But still have angle control precision
Low, operation is laborious and cannot achieve the defects of different-thickness analog material is laid with, test accuracy is poor.Existing defect, first is that should
Technology is an eccentric structure, and structural stability is bad；Second is that the technology passes through hand-operated spanner handle；Third is that the technology is not corresponding
Position-limit mechanism, rotation angle needs to debug repeatedly, and the time is long, and structural attachments loosen, and will cause precision and further declines.
Summary of the invention
The technical issues of in the presence of the present invention mainly solution prior art, to provide, a kind of test accuracy is high, grasps
Make simply and easily to rotate Equivalent Materials Testing device and test method.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
Rotatable Equivalent Materials Testing device provided by the invention comprising:
The surrounding of the bottom plate is arranged in frame, including bottom plate and column, the column；
Circle is swung, on the outside of testing stand, rotation is connected on frame, to drive testing stand to rotate；
Testing stand is fixed on swing circle, and the testing stand is an open-topped opening frame, the bottom frame for the frame that is open and
Two sides frame is bar shaped groove shape, so that the frame that makes to be open is set as analog material filling slot in the bottom frame front and rear sides of frame
Be equipped with casing member, the baffle includes multiple strip-shaped baffles, multiple strip-shaped baffles along analog material filling slot short transverse according to
Secondary superposition is placed, and is equipped with pressurized cylinder in the top of top layer's strip-shaped baffle of opening frame；
Driving mechanism, for driving the swing circle to rotate a set angle relative to the frame.
Further, the driving mechanism includes driving unit and gear ring, and each column is arranged in the driving unit
Upper and lower two sides, the excircle for swinging circle are equipped with an annular groove, and gear ring is arranged in annular groove, the driving unit
It is fixed on column including driving motor, drive shaft and driving gear, the driving motor, one end of drive shaft and driving motor
It is connected, the middle part of drive shaft is connected with driving gear, and the driving gear is also meshed with gear ring.
Further, the upper surface two sides of the bottom plate are additionally provided with auxiliary wheel seat, rotate and are connected on the auxiliary wheel seat
Auxiliary wheel, the auxiliary wheel are meshed with the gear ring.
Further, the set angle for swinging circle rotation is 0-75 °.
Further, the top of the two neighboring column is additionally provided with reinforcing beam.
Further, the circle that swings is equipped with more support rods being interspersed, and the testing stand is fixed on the branch
On strut.
The test method of rotatable Equivalent Materials Testing device provided by the invention comprising following steps:
S1, starting driving motor swing circle rotation by driving gear and gear ring driving, swing circle and drive testing stand rotation
To set angle, which is equal to the tilt angle in coal seam；
S2, the coal seam thickness simulated as needed install strip-shaped baffle additional in the front and rear sides of analog material filling slot, so
Afterwards, it is tiled in analog material filling slot into pre-configured analog material, and tamped, at this moment the coal seam of equivalent material simulating
Inclination angle be 0 °；
After one layer of S3, compacting analog material, another layer of analog material is re-layed；
S4, step S2-S3 is repeated, until the analog material thickness being laid with, which is equal to, needs coal seam thickness to be simulated；
S5, to analog material after natural drying, remove strip-shaped baffle, by driving motor by swing circle reset, work as swing
When circle resets, the coal seam that analog material is formed is inclined seam, and inclination angle is equal to the tilt angle in coal seam；
S6, load test is carried out by pressurized cylinder.
Further, the revolving speed for swinging circle rotation is 0.28r/min.
Further, the pressurized cylinder has 18, and the system pressure of the single pressurized cylinder is 2MPa, and all pressurizations
Cylinder loads analog material by pressure plate.
The beneficial effects of the present invention are: when needing to simulate inclined seam, it first will swing circle and testing stand revolve
Set angle is gone to, is successively spread into pre-configured analog material, swings circle and testing stand reset, benefit to make after natural drying
Load test is carried out with pressurized cylinder, is able to achieve accurate, the automatic rotation of testing stand, it can deformation to seam mining overlying strata, broken
Bad and inbreak process is simulated, and simple to operate, and test result accuracy is high.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of rotatable Equivalent Materials Testing device of the invention；
Fig. 2 is the gear ring distributing position figure of rotatable Equivalent Materials Testing device of the invention；
Fig. 3 is the structural schematic diagram of the testing stand of rotatable Equivalent Materials Testing device of the invention；
Fig. 4 is the method flow diagram of the test method of rotatable Equivalent Materials Testing device of the invention.
In figure: 1- frame, 11- bottom plate, 12- column；2- testing stand, 21- filling slot, 22- strip-shaped baffle, 23- pressurized cylinder,
24- pressure plate；3- swings circle, 31- annular groove；4- driving mechanism, 41- gear ring, 42- driving motor, 43- drive shaft, 44- drive
Moving gear；5- assists wheel seat, 6- auxiliary wheel；7- reinforcing beam；8- support rod.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Refering to fig. 1 shown in -3, rotatable Equivalent Materials Testing device of the invention comprising:
The surrounding of bottom plate 11 is arranged in frame 1, including bottom plate 11 and column 12, column 12；In the present embodiment, 11 He of bottom plate
Column 12 is formed by the mutual overlap joint welding of fashioned iron, it is of course also possible to use other are such as spirally connected, fixed form is attached.
Testing stand 2 is fixed on swing circle 3, and is mounted on the middle position of frame 1, and testing stand 2 includes analog material
Filling slot 21, pressurized cylinder 23 and casing member, casing member are symmetricly set on the front and rear sides of analog material filling slot 21, casing member packet
Multiple strip-shaped baffles 22 are included, multiple strip-shaped baffles 22 are sequentially overlapped placement along the short transverse of analog material filling slot 21, pressurization
The top of top layer's strip-shaped baffle 22 is arranged in cylinder 23, and analog material filling slot 21 is laid with analog material for filling；This implementation
In example, the effect of setting strip-shaped baffle 22 is: preventing from collapsing in analog material process of deployment, plays the work that limit stops
With.
Analog material filling slot 21 of the invention is an open-topped opening frame, and three frames of the frame that is open are item
The shape of shape slot, strip-shaped baffle both ends are fixed on the slot of strip groove along upper, so that multiple strip-shaped baffles 22 be made to fill out along analog material
The short transverse for filling slot 21 is sequentially overlapped placement, and the strip-shaped baffle purpose of multiple superposition placements is arranged first is that in order to adjust sample height
Degree, second is that collapsing in process of deployment in order to prevent, bar slot two sides need to be reinforced with strip-shaped baffle.
Circle 3 is swung, the outside of testing stand 2 is set, is rotatably mounted on frame 1；It is handed over specifically, swinging circle 3 and being equipped with
More support rods 8 of mistake distribution, testing stand 2 are fixed on support rod 8.
Driving mechanism 4 swings circle 3 relative to one set angle of rotation of frame 1 for driving.Preferably, 3 rotation of circle is swung
Set angle be 0-75 °.In other embodiments of the invention, the set angle for swinging 3 rotation of circle can also be other conjunctions
Suitable numberical range.
In the present invention, when needing to simulate inclined seam, circle 3 and the rotation of testing stand 2 will be first swung to set angle
Degree, successively spreads into pre-configured analog material, swings circle 3 and the reset of testing stand 2 to make after natural drying, utilizes pressurized cylinder
23 carry out load tests, are able to achieve accurate, the automatic rotation of testing stand 2, can deformation to seam mining overlying strata, destroy and emit
The process of falling is simulated, and simple to operate, and test result accuracy is high.
Driving mechanism 4 of the invention includes driving unit and gear ring 41, and the upper and lower of each column 12 is arranged in driving unit
Two sides, the excircle for swinging circle 3 are equipped with an annular groove 31, and gear ring 41 is arranged in annular groove 31, and driving unit includes
Driving motor 42, drive shaft 43 and driving gear 44, driving motor 42 are fixed on column 12, one end of drive shaft 43 and driving
Motor 42 is connected, and the middle part of drive shaft 43 is connected with driving gear 44, and driving gear 44 is also meshed with gear ring 41.This hair
In bright, driving gear 44 is driven to rotate by driving motor 42, driving gear 44 drives gear ring 41 to rotate, so that swing be driven to enclose
3 and testing stand 2 rotate relative to frame 1 to set angle.
Preferably, the upper surface two sides of bottom plate 11 are additionally provided with auxiliary wheel seat 5, rotation on wheel seat 5 is assisted to be connected with auxiliary wheel
6, auxiliary wheel 6 is meshed with gear ring 41.Auxiliary wheel 6 can assist swinging 3 rotation of circle, and play supporting function.
Preferably, in order to further increase overall structural strength, the top of two neighboring column 12 is additionally provided with reinforcing beam 7.
As shown in fig.4, the test method of rotatable Equivalent Materials Testing device of the invention comprising following step
It is rapid:
S1, starting driving motor 42 will swing 3 rotation of circle to set angle, also by driving gear 42 and gear ring 41
It is to need seam inclination angle to be simulated, swings circle 3 and drive the testing stand rotation being fixed thereon；In the present embodiment, 3 rotation of circle is swung
The revolving speed turned is 0.28r/min.
S2, strip-shaped baffle 22 is installed additional in the front and rear sides of analog material filling slot 21, then, in analog material filling slot 21
It inside tiles into pre-configured analog material, and tamps, the seam inclination angle after tiling is 0 °；
After one layer of S3, compacting analog material, another layer of analog material is re-layed；
S4, step S2-S3 is repeated, until the height of analog material is equal to the inclined seam thickness of simulation；
S5, to analog material after natural drying, remove strip-shaped baffle 22, by driving motor 42 by swing circle 3 reset, pendulum
Moving-coil drives testing stand rotation also to set back, and there are inclination angle, inclination angle etc. in the coal seam that script inclination angle is 0 degree at this time instead
In the rotation angle for swinging circle, that is, it is equal to the seam inclination angle of setting；
S6, load test is carried out by pressurized cylinder 23.In the present embodiment, pressurized cylinder 23 has 18, single pressurized cylinder 23
System pressure 2MPa, and all pressurized cylinders 23 load analog material by pressure plate 24.Preferably, pressurized cylinder 23 is
Hydraulic air oil-control pressurized cylinder, loading method are Vertical loading, are not influenced by rotation angle.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should be covered by the protection scope of the present invention.Therefore, protection of the invention
Range should be determined by the scope of protection defined in the claims.
Claims (9)
1. a kind of rotatable Equivalent Materials Testing device, characterized in that it comprises:
The surrounding of the bottom plate is arranged in frame, including bottom plate and column, the column；
Circle is swung, on the outside of testing stand, rotation is connected on frame, to drive testing stand to rotate；
Testing stand is fixed on swing circle, and the testing stand is an open-topped opening frame, the bottom frame for the frame that is open and two sides
Frame is bar shaped groove shape, so that the frame that makes to be open is provided with as analog material filling slot in the bottom frame front and rear sides of frame
Casing member, the baffle include multiple strip-shaped baffles, and multiple strip-shaped baffles are successively folded along the short transverse of analog material filling slot
It places and sets, be equipped with pressurized cylinder in the top of top layer's strip-shaped baffle of opening frame；
Driving mechanism, for driving the swing circle to rotate a set angle relative to the frame.
2. rotatable Equivalent Materials Testing device as described in claim 1, which is characterized in that the driving mechanism includes
The two sides up and down of each column are arranged in driving unit and gear ring, the driving unit, and the excircle for swinging circle is equipped with
One annular groove, gear ring are arranged in annular groove, and the driving unit includes driving motor, drive shaft and driving gear, institute
It states driving motor to be fixed on column, one end of drive shaft is connected with driving motor, middle part and the driving gear phase of drive shaft
Connection, the driving gear are also meshed with gear ring.
3. rotatable Equivalent Materials Testing device as described in claim 1, which is characterized in that the upper surface of the bottom plate
Two sides are additionally provided with auxiliary wheel seat, and rotation is connected with auxiliary wheel on the auxiliary wheel seat, and the auxiliary wheel is meshed with the gear ring.
4. rotatable Equivalent Materials Testing device as described in claim 1, which is characterized in that described to swing what circle rotated
Set angle is 0-75 °.
5. rotatable Equivalent Materials Testing device as described in claim 1, which is characterized in that the two neighboring column
Top be additionally provided with reinforcing beam.
6. rotatable Equivalent Materials Testing device as described in claim 1, which is characterized in that the swing circle is equipped with
More support rods being interspersed, the testing stand are fixed on the support rod.
7. a kind of test method of rotatable Equivalent Materials Testing device as described in claim 1, which is characterized in that its
The following steps are included:
S1, starting driving motor swing circle rotation by driving gear and gear ring driving, swing circle and testing stand is driven to rotate to setting
Determine angle, which is equal to the tilt angle in coal seam；
S2, the coal seam thickness simulated as needed install strip-shaped baffle additional in the front and rear sides of analog material filling slot, then,
It is tiled in analog material filling slot into pre-configured analog material, and tamped, at this moment the coal seam of equivalent material simulating is inclined
Oblique angle is 0 °；
After one layer of S3, compacting analog material, another layer of analog material is re-layed；
S4, step S2-S3 is repeated, until the analog material thickness being laid with, which is equal to, needs coal seam thickness to be simulated；
S5, to analog material after natural drying, remove strip-shaped baffle, resetted by driving motor by circle is swung, circle is multiple when swinging
When position, the coal seam that analog material is formed is inclined seam, and inclination angle is equal to the tilt angle in coal seam；
S6, loading experiment is carried out by pressurized cylinder.
8. the test method of rotatable Equivalent Materials Testing device as claimed in claim 7, which is characterized in that the pendulum
The revolving speed of moving-coil rotation is 0.28r/min.
9. the test method of rotatable Equivalent Materials Testing device as claimed in claim 7, which is characterized in that described to add
Cylinder pressure has 18, and the system pressure of the single pressurized cylinder is 2MPa, and all pressurized cylinders pass through pressure plate to analog material
It is loaded.
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| CN201811386851.9A CN109300378A (en) | 2018-11-20 | 2018-11-20 | A kind of rotatable Equivalent Materials Testing device and test method |
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| CN201811386851.9A CN109300378A (en) | 2018-11-20 | 2018-11-20 | A kind of rotatable Equivalent Materials Testing device and test method |
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| CN110196316A (en) * | 2019-06-19 | 2019-09-03 | 中国平煤神马能源化工集团有限责任公司 | Pit mining crack evolvement analog simulation testing stand |
| WO2020206760A1 (en) * | 2019-04-08 | 2020-10-15 | 山东科技大学 | Forward fault simulation test apparatus having adjustable angle and initiation position, and usage method therefor |
| CN112461633A (en) * | 2020-10-27 | 2021-03-09 | 山东科技大学 | Automatic simulation test bed and test method for similar caving coal materials |
| CN113870667A (en) * | 2021-09-30 | 2021-12-31 | 西安科技大学 | Novel similar material plane model frame of flexible size |
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