CN110726627B - SRM driving type mining strain direct shear apparatus - Google Patents
SRM driving type mining strain direct shear apparatus Download PDFInfo
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- CN110726627B CN110726627B CN201911220356.5A CN201911220356A CN110726627B CN 110726627 B CN110726627 B CN 110726627B CN 201911220356 A CN201911220356 A CN 201911220356A CN 110726627 B CN110726627 B CN 110726627B
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- 238000005065 mining Methods 0.000 title claims abstract description 19
- 239000003245 coal Substances 0.000 claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000005303 weighing Methods 0.000 claims abstract description 24
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 230000006641 stabilisation Effects 0.000 claims abstract description 5
- 238000011105 stabilization Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 13
- 238000010008 shearing Methods 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000011217 control strategy Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 5
- 238000013459 approach Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000002245 particle Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an SRM driving type mining strain direct shear apparatus and an implementation method thereof, wherein the SRM driving type mining strain direct shear apparatus comprises a strain direct shear apparatus main body, and a frame body and an operation table top are arranged on the strain direct shear apparatus main body; the left side of the operating table top is fixedly provided with an approach switch, a power box and a transmission box, and a control circuit board, an SRM motor body and a reduction box are arranged in the power box; a sliding rail, a maintenance and stabilization frame and a pressure applying frame are arranged in the middle of the operating table top; the right side of the operating table top is provided with a transmission ring, a pressure gauge, a bearing table and an adjusting table, the left output rod of the pressure receiving frame is provided with two force clamping devices, and the upper ends of the two force clamping devices are fixedly provided with the pressure gauge; a supporting rod, a weighing beam and a force supporting frame are arranged below the operating table top. The practical use result of the invention shows that the operation is convenient, the stability is high, the SRM stepping displacement is the same, the initial state is convenient to adjust, the direct shear pressure data recording is accurate and quick, and the invention is suitable for being popularized and used in laboratory coal direct shear experiments.
Description
Technical Field
The invention relates to intelligent direct shear equipment for coal mine experiments and the related technical field thereof, in particular to an SRM-driven mining strain direct shear apparatus and an implementation method thereof.
Background
The mining strain direct shear apparatus can perform direct shear experiments on coal samples with different particle sizes, different coal beds and different water contents under laboratory conditions. The coal samples are coal samples taken from different underground coal beds, and the influence data of the coal beds, the grain sizes and the water contents on the coal stress can be obtained by performing direct shear experiments on a plurality of coal samples, so that reliable technical analysis is performed on coal mining, and a powerful technical support is provided for underground safety production.
The invention designs an SRM driving type mining strain direct shear apparatus and an implementation method thereof, wherein a direct shear experiment is carried out on a plurality of groups of coal samples through the timing driving function of the SRM so as to more accurately and effectively acquire a plurality of groups of shear pressure values.
Disclosure of Invention
The invention aims to provide an SRM driving type mining strain direct shear apparatus and an implementation method thereof, so as to realize accurate and rapid recording of coal sample direct shear pressure data.
In order to achieve the above purpose, the present invention provides the following technical solutions: the SRM driven type mining strain direct shear apparatus comprises a strain direct shear apparatus main body, wherein a frame body and an operation table top are arranged on the strain direct shear apparatus main body; the operation table top is fixed on the frame body, an approach switch, a power box and a transmission box are fixedly arranged on the left side of the operation table top, a control circuit board, an SRM motor body and a reduction box are arranged in the power box, the output end of the SRM motor body is connected with the reduction box, the approach switch is electrically connected with the control circuit board, an operation interface is arranged on the right side of the top of the power box, a signal transmission port of the operation interface is electrically connected with the control circuit board, a driving gear, a driven double gear and a double-sided rack are arranged in the transmission box, the center of the driving gear is fixedly connected with the output shaft of the reduction box, the double-sided rack is tightly arranged between the driving gear and the driven double gear, the right end of the double-sided rack is fixedly connected with a transmission rod, and the left end of the double-sided rack is fixedly connected with an iron connecting rod; the middle of the operating table top is provided with a sliding rail, a maintenance frame and a pressure applying frame, rolling pulleys are uniformly arranged at the upper end of the sliding rail, a direct shear base is arranged at the top end of each rolling pulley, a direct shear container and a pressure applying cover are arranged on each direct shear base, a primary coal containing cavity is penetrated in the middle of each direct shear container, a secondary coal containing cavity is arranged at the upper side of the inside of each direct shear base, the top end of each pressure applying cover is connected with a longitudinal elastic valve, the longitudinal elastic valve is arranged at the top end of the pressure applying frame, a horizontal column is fixedly arranged on the right side of each direct shear container, and two supporting guide wheels which are arranged up and down are arranged in the middle of the maintenance frame; the right side of the operation table top is provided with a transmission ring, a pressure gauge, a bearing table and an adjusting table, the left end and the right end of the transmission ring are respectively fixedly provided with a pressure measuring frame and a pressure receiving frame, the left output rod of the pressure receiving frame is provided with two force clamping devices, the upper ends of the two force clamping devices are fixedly provided with the pressure gauge, the pressure measuring rod at the left end of the pressure gauge is tightly contacted with the right end surface of the pressure measuring frame, the left end of the pressure measuring frame stretches into the space between two supporting guide wheels, the pressure receiving frame is horizontally arranged on the bearing table, the right side surface of the pressure receiving frame is sleeved with a transverse elastic valve, and the transverse elastic valve penetrates through the adjusting table; the automatic weighing machine is characterized in that a supporting rod, a weighing beam and a force supporting frame are arranged below the operating table top, a balancing weight is arranged at the left end point of the weighing beam, the left end of the weighing beam is rotationally connected with the supporting rod, the left side of the weighing beam is rotationally connected with the lower end of the pressing frame, the right side of the weighing beam penetrates through the force supporting frame, a force supporting valve and a force supporting plate are arranged at the lower end of the force supporting frame, and a weight placing frame is arranged at the right end point of the weighing beam.
Preferably, a guide wheel with a brake valve is arranged at the bottom end of the frame body.
Preferably, the SRM motor body is driven by an H-bridge power converter provided on a control circuit board; the control circuit board adopts a special control chip for the DSP28335 motor, the power supply module adopts a flyback switching power supply, and the power supply input end is connected with a power line and a plug; the control mode of the SRM motor body adopts a DTC double closed-loop control strategy.
Preferably, the operation interface comprises a click key, a timing driving key, a return key, a timing nixie tube and an adjusting key thereof.
Preferably, the tail end of the iron connecting rod extends out of the transmission case and is positioned on the same horizontal line with the proximity switch.
Preferably, the two side wheel faces of the driven double gear extend outwards, and the center of the driven double gear is fixed on the transmission case through a bearing; the tail end of the transmission rod is provided with a rubber pad, and the transmission rod can extend out of the transmission box.
Preferably, the primary coal containing cavity and the secondary coal containing cavity are of cylindrical structural design with the same diameter, and form a direct shear cavity together.
Preferably, the direct shear container and the direct shear base are of cuboid structural design, two opposite corners of the direct shear container and the direct shear base are respectively provided with a stable cavity, stable nails are arranged in the stable cavities, and handles are arranged on two sides of the direct shear base.
Preferably, the horizontal column is positioned on the same horizontal line with the pressure measuring frame after being horizontally placed.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts SRM timing driving technology and is matched with a plurality of mechanical structures, thereby realizing accurate and quick record of the coal sample direct shear pressure data.
The specific effects of the sub-items are as follows:
1. the two side wheel faces of the driven double gear extend outwards, the center of the driven double gear is fixed on the transmission case through the bearing, smooth rotation of the driven double gear can be guaranteed through the design, and meanwhile double-sided rack running swing or falling can be avoided.
2. The position of the lower end of Shi Yajia on the scale beam is set according to the analog value of the pressure applied by the coal sample and is fixed.
3. For obtaining more accurate experimental data, the particle size of the coal sample suitable for the device should be not more than 3mm, because the excessive particle size can not be placed in the direct shear cavity for pressing and fixing, and the accuracy of the direct shear data is affected.
4. The transmission ring and the pressure measuring frame ensure the measurement accuracy of the pressure gauge, when in early preparation, the SRM is responsible for coarsely adjusting the position of the horizontal column, and the transverse elastic valve is responsible for finely adjusting the position of the pressure measuring frame, so that the initial value of the measured pressure is ensured to be zero, and in the initial state, the shearing force suffered by the water-reference coal sample is extremely weak and negligible, and the accuracy of experimental data is improved.
The practical use result of the invention shows that the operation is convenient, the stability is high, the SRM starting interval is equal, the speed and the stepping displacement are the same, the initial state is convenient to adjust, the direct shear pressure data recording is accurate and quick, and the invention is suitable for being popularized and used in laboratory coal direct shear experiments.
Drawings
FIG. 1 is a schematic diagram of an SRM driven mining strain direct shear apparatus and a realization method thereof;
FIG. 2 is a schematic view of the internal structure of the transmission case of the present invention;
FIG. 3 is a schematic view of the structure of the straight shear base and the slide rail of the present invention;
FIG. 4 is a schematic view of the force clamp of the present invention;
FIG. 5 is a circuit diagram of an H-bridge power converter of the present invention;
FIG. 6 is a block diagram of a DTC dual closed loop control strategy of the invention;
FIG. 7 is a circuit diagram of the output end of the flyback switching power supply of the present invention;
in the figure: 1-a strain direct shear apparatus body; 2-a frame body; 3-operating the table top; 4-a power box; 401-proximity switch; 402-an operation interface; 5-a transmission case; 501-a driving gear; 502-driven double gear; 503-double-sided rack; 504-a drive rod; 6-a direct shear base; 601-a direct shear cavity; 7-sliding rails; 8-a direct shear container; 801-horizontal column; 802-a stability lumen; 803-stabilizing the nail; 9-Shi Yagai; 901-longitudinal elastic valve; 10-Shi Yajia; 11-dimensional stability frame; 12-supporting guide wheels; 13-a pressure measuring frame; 14-a transmission ring; 15-a pressure gauge; 16-clamping force device; 17-a compression frame; 18-a bearing table; 19-a regulating table; 20-a transverse elastic valve; 21-a strut; 22-balancing weight; 23-a scale beam; 24-force supporting frames; 25-weight rack.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the present invention provides a technical solution: the SRM driven type mining strain direct shear apparatus comprises a strain direct shear apparatus main body 1, wherein a frame body 2 and an operation table top 3 are arranged on the strain direct shear apparatus main body 1; the operation table top 3 is fixed on the frame body 2, a proximity switch 401, a power box 4 and a transmission box 5 are fixedly arranged on the left side of the operation table top 3, a control circuit board, an SRM motor body and a reduction box are arranged in the power box 4, the output end of the SRM motor body is connected with the reduction box, the proximity switch 401 is electrically connected with the control circuit board, an operation interface 402 is arranged on the right side of the top of the power box 4, a signal transmission port of the operation interface 402 is electrically connected with the control circuit board, a driving gear 501, a driven double gear 502 and a double rack 503 are arranged in the transmission box 5, the center of the driving gear 501 is fixedly connected with an output shaft of the reduction box, the double rack 503 is tightly arranged between the driving gear 501 and the driven double gear 502, the right end of the double rack 503 is fixedly connected with a transmission rod 504, and the left end of the double rack 503 is fixedly connected with an iron connecting rod; the middle of the operation table top 3 is provided with a sliding rail 7, a maintenance and stabilization frame 11 and a pressing frame 10, rolling pulleys are uniformly arranged at the upper end of the sliding rail 7, a direct shear base 6 is arranged at the top end of each rolling pulley, a direct shear container 8 and a pressing cover 9 are arranged on the direct shear base 6, a primary coal containing cavity penetrates through the middle of the direct shear container 8, a secondary coal containing cavity is arranged at the upper side of the inner part of the direct shear base 6, the top end of the pressing cover 9 is connected with a longitudinal elastic valve 901, the longitudinal elastic valve 901 is arranged at the top end of the pressing frame 10, a horizontal column 801 is fixedly arranged at the right side of the direct shear container 8, the maintenance and stabilization frame 11 is arranged at the right side of the sliding rail 7, and two supporting guide wheels 12 which are arranged up and down are arranged in the middle of the maintenance and stabilization frame 11; the right side of the operation table top 3 is provided with a transmission circular ring 14, a pressure gauge 15, a bearing table 18 and an adjusting table 19, the left end and the right end of the transmission circular ring 14 are respectively and fixedly provided with a pressure measuring frame 13 and a pressure receiving frame 17, the left output rod of the pressure receiving frame 17 is provided with two force clamping devices 16, the upper ends of the two force clamping devices 16 are fixedly provided with the pressure gauge 15, the pressure measuring rod at the left end of the pressure gauge 15 is tightly contacted with the right end surface of the pressure measuring frame 13, the left end of the pressure measuring frame 13 stretches into between the two supporting guide wheels 12, the pressure receiving frame 17 is horizontally arranged on the bearing table 18, the right side surface of the pressure receiving frame 17 is sleeved with a transverse elastic valve 20, and the transverse elastic valve 20 penetrates through the adjusting table 19; a supporting rod 21, a weighing beam 23 and a force supporting frame 24 are arranged below the operating table top 3, a balancing weight 22 is arranged at the left end point of the weighing beam 23, the left end of the weighing beam 23 is rotationally connected with the supporting rod 21, the left side of the weighing beam 23 is rotatably connected with the lower end of the pressing frame 10, the right side of the weighing beam 23 penetrates through the force supporting frame 24, the lower end of the force supporting frame 24 is provided with a force supporting valve and a force supporting plate, and the right end point of the weighing beam 23 is provided with a weight placing frame 25.
Wherein, the leading wheel that takes the brake valve is provided with to support body 2 bottom.
The SRM motor body is driven by an H-bridge power converter arranged on the control circuit board; the control circuit board adopts a special control chip for the DSP28335 motor, the power supply module adopts a flyback switching power supply, and the power supply input end is connected with a power line and a plug; the control mode of the SRM motor body adopts a DTC double closed-loop control strategy.
The operation interface 402 includes a click key, a timing driving key, a back key, a timing nixie tube and an adjusting key.
Wherein, the tail end of the iron connecting rod extends out of the transmission case 5 and is positioned on the same horizontal line with the proximity switch 401.
Wherein, the two side wheel surfaces of the driven double gear 502 extend outwards, and the center of the driven double gear is fixed on the transmission case 5 through a bearing; the end of the transmission rod 504 is provided with a rubber pad, and can extend out of the transmission case 5.
The primary coal containing cavity and the secondary coal containing cavity are of cylindrical structural design with the same diameter, and form a direct shear cavity 601 together.
The direct shear container 8 and the direct shear base 6 are of cuboid structural design, two opposite corners of the direct shear container 8 and the direct shear base 6 are respectively provided with a stable cavity 802, stable nails 803 are arranged in the stable cavities 802, and handles are arranged on two sides of the direct shear base 6.
Wherein, the horizontal column 801 is positioned on the same horizontal line with the pressure measuring frame 13 after being horizontally placed.
Working principle: in the early stage of the experiment, classifying and numbering different coal seam coal samples, screening out samples with different particle diameters from the same coal seam coal sample through a standard sieve, and numbering and placing; selecting a specimen and the weight thereof according to requirements, and uniformly dividing the specimen into single coal samples (generally, about 260g of single coal samples are required for single experiment); then, a water reference experiment is carried out, and water with a set proportion is uniformly added into the single coal sample (the water reference amount of the single coal sample is sequentially increased according to the regulation during a plurality of groups of experiments) so as to obtain the water reference coal sample.
The direct shear experiment begins with the following detailed steps:
(1) Firstly, the transmission rod 504 is retracted leftwards by a retraction key in the operation interface 402 until the iron connecting rod touches the proximity switch 401;
(2) The position of a force supporting plate at the lower end of the force supporting frame 24 is regulated, the weighing beam 23 is prevented from being touched in the experiment, a proper weighing weight is placed on the weighing weight placing frame 25, the direct shear experiment requires that the pressure of the water-taking coal sample is sequentially 50kN, 100kN, 200kN and 400kN, and each pressure value corresponds to one direct shear experiment;
(3) The pressing frame 10 is moved aside, the stabilizing nails 803 are inserted into the stabilizing cavity 802, then the direct shear cavity 601 is filled with the reference water coal sample, shi Yagai is closed and tightly pressed by the longitudinal elastic valve 901, at this time, the pressed reference water coal sample is ensured to be at least filled with 2/3 of the direct shear cavity 601, and the pressing cover 9 is naturally pressed in the whole course and is forbidden to be pressed by external force;
(4) The SRM is started by a click key in the operation interface 402, the transmission rod 504 is driven to slowly push rightwards, the direct shear base 6 and the direct shear container 8 are pushed to slowly move rightwards on the sliding rail 7, and when the horizontal column 801 touches the left end face of the pressure measuring frame 13, the click key is released, and the forward movement is stopped;
(5) The pressure measuring frame 13 is slowly pushed to the left through the transverse elastic valve 20 until the display value on the pressure gauge 15 is 0, at the moment, the horizontal column 801 is tightly contacted with the pressure measuring frame 13, but the horizontal column 801 is very small in stress, and then the stabilizing nails 803 are slowly pulled out from the stabilizing cavities 802;
(6) Setting a time interval for applying thrust by a timing nixie tube and an adjusting key thereof in an operation interface 402, starting an SRM to push a direct shear base 6 to perform timing operation by a timing driving key, enabling the operation speed to be slow and constant, increasing the interleaving degree of the direct shear container 8 and the direct shear base 6 every time the operation is performed, dynamically displaying the shearing force received by the direct shear container 8 on a pressure gauge 15, and recording direct shear pressure data every time the operation is performed until the pressure data is reduced from the size, so that the reference water coal sample is sheared;
(7) Changing the weight, and repeating the experiment; changing the particle size, and carrying out experiments again; replacing the coal sample, and re-experiment; direct shear experimental data of all coal samples can be obtained.
Finally, all data are drawn into a plurality of line graphs or wave patterns, so that the influence of coal beds, particle sizes and water content on the shearing force born by coal samples can be more intuitively analyzed, the maximum shearing force born by coal in different coal beds in an underground environment can be simulated, and the particle sizes and the water content of the coal when the maximum shearing force is obtained are technically guaranteed for underground coal mine safety production.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a mining strain direct shear apparatus of SRM drive formula, includes strain direct shear apparatus main part (1), its characterized in that: the strain direct shear apparatus comprises a strain direct shear apparatus main body (1) and a strain direct shear apparatus body, wherein the strain direct shear apparatus main body (1) is provided with a frame body (2) and an operation table top (3); the automatic control device comprises an operation table top (3), a frame body (2), a proximity switch (401), a power box (4) and a transmission box (5) are fixedly arranged on the left side of the operation table top (3), a control circuit board, an SRM motor body and a reduction box are arranged in the power box (4), the output end of the SRM motor body is connected with the reduction box, the proximity switch (401) is electrically connected with the control circuit board, an operation interface (402) is arranged on the right side of the top of the power box (4), a signal transmission port of the operation interface (402) is electrically connected with the control circuit board, a driving gear (501), a driven double gear (502) and a double-sided rack (503) are arranged in the transmission box (5), the center of the driving gear (501) is fixedly connected with an output shaft of the reduction box, the double-sided rack (503) is tightly arranged between the driving gear (501) and the driven double-gear (502), a transmission rod (504) is fixedly connected with the right end of the double-sided rack (503), and the left end of the double-sided rack (503) is fixedly connected with an iron connecting rod. The vertical type coal pressing machine is characterized in that a sliding rail (7), a maintenance and stabilization frame (11) and a pressing frame (10) are arranged in the middle of the operating table top (3), rolling pulleys are uniformly arranged at the upper end of the sliding rail (7), a vertical shearing base (6) is arranged at the top end of each rolling pulley, a vertical shearing container (8) and a pressing cover (9) are arranged on the vertical shearing base (6), a primary coal containing cavity penetrates through the middle of the vertical shearing container (8), a secondary coal containing cavity is formed in the upper side of the inner portion of the vertical shearing base (6), a longitudinal elastic valve (901) is connected to the top end of the pressing cover (9), a horizontal column (801) is fixedly arranged on the right side of the vertical shearing container (8), and two supporting guide wheels (12) which are arranged up and down are arranged in the middle of the vertical stabilizing frame (11); the automatic pressure measuring device is characterized in that a transmission circular ring (14), a pressure gauge (15), a bearing table (18) and an adjusting table (19) are arranged on the right side of the operating table top (3), a pressure measuring frame (13) and a pressure measuring frame (17) are fixedly arranged at the left end and the right end of the transmission circular ring (14), two force clamping devices (16) are arranged on an output rod on the left side of the pressure measuring frame (17), the pressure gauge (15) is fixed at the upper end of the two force clamping devices (16), a pressure measuring rod at the left end of the pressure gauge (15) is tightly contacted with the right end face of the pressure measuring frame (13), the left end of the pressure measuring frame (13) stretches into between the two supporting guide wheels (12), the pressure measuring frame (17) is horizontally arranged on the bearing table (18), a transverse elastic valve (20) is sleeved on the right side of the pressure measuring frame (17), and the transverse elastic valve (20) penetrates through the adjusting table (19). The automatic weighing machine is characterized in that a supporting rod (21), a weighing rod (23) and a force supporting frame (24) are arranged below the operating table top (3), a balancing weight (22) is arranged at the left end point of the weighing rod (23), the left end of the weighing rod (23) is rotationally connected with the supporting rod (21), the left side of the weighing rod (23) is rotationally connected with the lower end of the Shi Yajia (10), the right side of the weighing rod (23) penetrates through the force supporting frame (24), a force supporting valve and a force supporting plate are arranged at the lower end of the force supporting frame (24), and a weight placing frame (25) is arranged at the right end point of the weighing rod (23); a guide wheel with a brake valve is arranged at the bottom end of the frame body (2); the SRM motor body is driven by an H-bridge power converter arranged on the control circuit board; the control circuit board adopts a special control chip for the DSP28335 motor, the power supply module adopts a flyback switching power supply, and the power supply input end is connected with a power line and a plug; the control mode of the SRM motor body adopts a DTC double closed-loop control strategy.
2. The SRM driven mining strain direct shear apparatus of claim 1, wherein: the operation interface (402) comprises a click key, a timing driving key, a return key, a timing nixie tube and an adjusting key thereof.
3. The SRM driven mining strain direct shear apparatus of claim 1, wherein: the tail end of the iron connecting rod extends out of the transmission case (5) and is positioned on the same horizontal line with the proximity switch (401).
4. The SRM driven mining strain direct shear apparatus of claim 1, wherein: the two side wheel surfaces of the driven double gear (502) extend outwards, and the center of the driven double gear is fixed on the transmission case (5) through a bearing; the tail end of the transmission rod (504) is provided with a rubber pad, and the transmission rod can extend out of the transmission box (5).
5. The SRM driven mining strain direct shear apparatus of claim 1, wherein: the primary coal containing cavity and the secondary coal containing cavity are of cylindrical structural design with the same diameter, and form a direct shear cavity (601) together.
6. The SRM driven mining strain direct shear apparatus of claim 1, wherein: the direct shear container (8) and the direct shear base (6) are of cuboid structural design, two opposite corners of the direct shear container (8) and the direct shear base (6) are respectively provided with a stabilizing cavity (802), stabilizing nails (803) are arranged in the stabilizing cavities (802), and handles are arranged on two sides of the direct shear base (6).
7. The SRM driven mining strain direct shear apparatus of claim 1, wherein: the horizontal column (801) is positioned on the same horizontal line with the pressure measuring frame (13) after being horizontally placed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220356.5A CN110726627B (en) | 2019-12-03 | 2019-12-03 | SRM driving type mining strain direct shear apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911220356.5A CN110726627B (en) | 2019-12-03 | 2019-12-03 | SRM driving type mining strain direct shear apparatus |
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| CN110726627A CN110726627A (en) | 2020-01-24 |
| CN110726627B true CN110726627B (en) | 2024-04-12 |
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| CN201911220356.5A Active CN110726627B (en) | 2019-12-03 | 2019-12-03 | SRM driving type mining strain direct shear apparatus |
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| CN112945757A (en) * | 2021-03-05 | 2021-06-11 | 中建海外有限公司 | Shearing device for fatigue test |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713788A (en) * | 2015-03-30 | 2015-06-17 | 西安长庆科技工程有限责任公司 | Strain-control type tension-shearing direct shear apparatus |
| CN106469236A (en) * | 2015-08-21 | 2017-03-01 | 波音公司 | The analysis of the structure being modeled using being mapped to inconsistent in structure |
| CN106940274A (en) * | 2017-04-14 | 2017-07-11 | 南京泰克奥科技有限公司 | A kind of full-automatic rheology direct shear apparatus and its Examination on experimental operation |
| CN108106949A (en) * | 2017-12-04 | 2018-06-01 | 深圳大学 | Method and symmetrical direct shear apparatus for stake Soil Interface shearing strength in-situ test |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675409B (en) * | 2016-03-31 | 2019-02-01 | 中国电建集团华东勘测设计研究院有限公司 | Integral type rock mass discontinuity direct shear apparatus and direct shear test method |
| CN211179357U (en) * | 2019-12-03 | 2020-08-04 | 安徽理工大学 | SRM drive type mining strain direct shear apparatus |
-
2019
- 2019-12-03 CN CN201911220356.5A patent/CN110726627B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713788A (en) * | 2015-03-30 | 2015-06-17 | 西安长庆科技工程有限责任公司 | Strain-control type tension-shearing direct shear apparatus |
| CN106469236A (en) * | 2015-08-21 | 2017-03-01 | 波音公司 | The analysis of the structure being modeled using being mapped to inconsistent in structure |
| CN106940274A (en) * | 2017-04-14 | 2017-07-11 | 南京泰克奥科技有限公司 | A kind of full-automatic rheology direct shear apparatus and its Examination on experimental operation |
| CN108106949A (en) * | 2017-12-04 | 2018-06-01 | 深圳大学 | Method and symmetrical direct shear apparatus for stake Soil Interface shearing strength in-situ test |
Non-Patent Citations (3)
| Title |
|---|
| Leaf Flexure Hinge with Damping Layers: Theoretical Model and Experiments;Chen Zhong 等;2014 International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO);20141031;全文 * |
| 三速电动应变式直剪仪剪切位移量的量测改进研究;陈蕾;阳桥;李秀;;现代物业(中旬刊);20170415(04);全文 * |
| 开关磁阻电机在矿用抽水机中的应用研究;张贵生 等;煤矿机械;20151231;第36卷(第7期);全文 * |
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