CN107192762B - Equipment for coal sample on-site ultrasonic detection - Google Patents
Equipment for coal sample on-site ultrasonic detection Download PDFInfo
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- CN107192762B CN107192762B CN201710379755.0A CN201710379755A CN107192762B CN 107192762 B CN107192762 B CN 107192762B CN 201710379755 A CN201710379755 A CN 201710379755A CN 107192762 B CN107192762 B CN 107192762B
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- 239000003245 coal Substances 0.000 title claims abstract description 121
- 238000001514 detection method Methods 0.000 title claims abstract description 73
- 239000000523 sample Substances 0.000 claims description 87
- 238000012360 testing method Methods 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- 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
-
- 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
- G01N2001/2873—Cutting or cleaving
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
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- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to a coal sample detection device, and particularly relates to equipment for on-site ultrasonic detection of a coal sample, which comprises a box body, an electric control device outside the box body, and a lifting device, a coal grabbing device, a cutting device and a detection device which are arranged in the box body, wherein the detection device is positioned at the bottom of the box body, the cutting device is positioned in the middle of the box body, the coal grabbing device is connected with the lifting device, the detection device comprises a detection table positioned at the bottom in the box body, an ultrasonic lower detection plate is arranged on the top surface of the detection table, an ultrasonic front detection plate is vertically and fixedly arranged on one side of the detection table, an ultrasonic rear detection plate corresponding to the ultrasonic front detection plate is fixedly arranged on the end part of an output shaft of the pressure electric cylinder, and the upper part of the ultrasonic rear. The ultrasonic detection device has the advantages of simple structure, ingenious design and small occupied space, and can be used for quickly carrying out ultrasonic detection on the coal sample in a coal mining field.
Description
Technical Field
The invention belongs to a coal sample detection device, and particularly relates to equipment for on-site ultrasonic detection of a coal sample.
Background
Coal is used as a main energy source in China, contributes great force to the development of the economic society of China, and although the development and utilization of clean energy are the main trends of future development, fossil energy still occupies a leading position in primary energy consumption structures in the world at present and lasts for a long time. With the rapid development of economy in China, the extensive development mode of energy-to-benefit conversion cannot be fundamentally changed in a short time, which leads to the great demand of industrial markets for coal resources. The petroleum and natural gas in China are insufficient, and compared with coal resources, the coal resources are slightly dominant, so that the exploitation of regional coal resources is forced to continuously extend to the deep part, and the coal industry faces unprecedented challenges. Some mechanical parameters, fracture development conditions and the like of the coal and rock mass are the most basic and indispensable theoretical basis reference basis for coal mining design and safe and efficient coal mining. At present, the traditional coal-rock mechanical property analysis means at home and abroad is to firstly process a standard part of a coal-rock sample taken from a mine under the condition of a laboratory, then carry out ultrasonic detection or destructive tests such as shrinkage or stretching on the sample in the laboratory, and finally obtain some basic parameters of the coal-rock. Traditional coal petrography detects and need get the coal petrography sample from the mine and carry out standard part processing to the processing factory, then take the laboratory to detect again, and whole process is very time-consuming, can not in time the high efficiency obtain the relevant parameter of coal sample. Based on the above situation, there is an urgent need for an automatic detection device that can directly sample on site and integrate cutting and detection.
Disclosure of Invention
The invention aims to provide the equipment for the on-site ultrasonic detection of the coal sample, which has the advantages of simple structure, ingenious design and small occupied space, and can quickly carry out ultrasonic detection on the coal sample in a coal mining site.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
on-spot ultrasonic testing of coal sample uses equipment, equipment includes box, the outside electrically controlled device of box and sets up hoisting device, grab coal device, cutting device and detection device in the box, and detection device is located bottom half, cutting device and is located the box middle part, grabs the coal device and is connected with hoisting device, detection device is including the detection platform that is located the box bottom, detects the platform top surface and is equipped with the probe card under the supersound, detects platform one side and sets firmly the probe card before the supersound perpendicularly, and the output shaft tip that is equipped with pressure electric jar and pressure electric jar on the box sets firmly the probe card behind the supersound that corresponds the setting of probe card before the supersound, and probe card top rotates with the supersound on the supersound and is connected.
Preferably, the pressure electric cylinder is connected with the ultrasonic rear detection plate through the connecting seat, the connecting seat is provided with a rotating motor, an output shaft of the rotating motor is connected with the ultrasonic upper detection plate through a connecting rod, and when the ultrasonic upper detection plate is in a horizontal state, the ultrasonic upper detection plate corresponds to the ultrasonic lower detection plate in position.
Preferably, the lifting device comprises lifting mechanisms respectively located at two ends of the length direction of the detection table, each lifting mechanism comprises two stand columns, each stand column is provided with a groove rail, a lead screw is arranged in each groove rail, one end of each lead screw is connected with a lifting motor output shaft arranged at the bottom in each stand column, and the other end of each lead screw is in threaded connection with the coal grabbing device.
Preferably, the coal grabbing device comprises two handles which are arranged oppositely, the handles are connected with an output rod of the coal grabbing electric cylinder, supports are arranged on two sides of the coal grabbing electric cylinder, and an internal thread hole in threaded fit with the screw rod is arranged on each support.
Preferably, the handle be the round platform form, the big port department of handle is by the shutoff of rubber leather packing, little port department through the connecting handle with grab coal electric cylinder's output lever fixed connection.
Preferably, grab coal electric cylinder outside and ring inner wall fixed connection, the ring bilateral symmetry is equipped with the ring drive frame, be equipped with on the ring drive frame with the ring anchor ring contact to the pinch roller group, set up in ring drive frame tip with lead screw thread fit's support.
Preferably, the circular ring driving frame is an equilateral triangle frame body consisting of a vertical side frame and two oblique side frames, the opposite pressing roller set comprises two self-driven wheels and a guide wheel which are positioned on the same plane, pin shafts of the self-driven wheels are hinged to the end parts of the vertical side frames, pin shafts of the guide wheels are hinged to intersection points of the oblique side frames, the self-driven wheels are in contact with the outer circular ring surface, and the guide wheels are in contact with the inner circular ring surface.
Preferably, the cutting device comprises motor frames correspondingly arranged on two sides of the detection table, a brushless motor is arranged at the position of the middle section of the height of the box body at the top of each motor frame, an output shaft of the brushless motor is fixedly connected with the disc centers of the saw discs, and the gap between the two saw discs is larger than the width of the coal grabbing mechanism.
Preferably, the electric control device comprises a display screen and an operation key which are arranged outside the box body, and the operation key and the display are in signal connection with the detection device, the coal grabbing device and the cutting device through a single chip microcomputer arranged at the bottom of the detection platform.
Preferably, a single chip microcomputer and a blower are arranged below the detection platform, an air outlet of the blower is connected with one end of an air pipe, and the other end of the air pipe faces the top surface of the detection platform; the top of the box body is hinged with a top cover, the bottom of the box body is hinged with a slag removal door, and the top cover and the slag removal door are respectively provided with a lock catch movably connected with the box body; the bottom of the box body is also provided with a main power supply connector and a main power supply switch button.
The working process of the invention is as follows: firstly, the lifting motor is controlled to rotate through an operating button, the lifting motor drives a screw rod to rotate, a support drives a circular ring driving frame, an electric cylinder and a handle to move upwards to a target position, then a top cover at the bottom of a box body is opened, a mined coal sample is placed in the box body, meanwhile, the output shaft of the coal-grabbing electric cylinder is controlled to extend through the operating button, the coal sample is clamped by rubber pads at large port parts of two handles, then the lifting motor drives the screw rod to rotate reversely through the operating button, the handle drives the coal sample to move downwards to a cutting device, and brushless motors at two sides of the coal sample drive a saw disc to rotate and cut two sides of the coal sample into planes along with the downward movement of the coal sample, so;
the same operation is carried out, the screw rod rotates forwards, the handle drives the coal sample to move upwards, then the self-driving wheel on the circular ring driving frame rotates, the self-driving wheel is matched with the guide wheel, the circular ring and the coal grabbing electric cylinder can be driven to rotate in the circumferential direction, the handle and the coal block also rotate in the circumferential direction to 90 degrees, two planes of the first cutting are parallel to the vertical direction, then the screw rod is controlled to turn over, the handle drives the coal sample to move downwards to the cutting device, and along with the downward movement of the coal sample, the brushless motors on two sides of the coal sample drive the saw disc to rotate and cut two sides of the coal sample into planes, so that the secondary cutting is completed;
the coal sample after secondary cutting has four smooth sides of upper and lower, preceding, back to and reach the requirement of carrying out ultrasonic detection, control lead screw continues to overturn and detect the platform contact under the supersound of platform with the coal sample, then control the output shaft of grabbing coal electric cylinder and retract, handle and coal sample separation.
Then the output shaft extension of pressure electric cylinder, push the connecting seat to the coal sample, detect after the supersound and can drive the coal sample and continue to move after the platform contact coal sample, detect the platform contact before coal sample and supersound, then rotate the motor and rotate, and detect the platform rotation to its contact coal sample on driving the supersound through the connecting rod, so, can realize that the supersound is preceding, back, four level and smooth sides that the platform was contradicted the coal sample respectively are detected to the upper and lower platform of detecting, then start the work of supersound and detect the platform, the data display that reachs is in the display screen.
And then opening the top cover, taking out the coal sample, simultaneously opening the air blower, blowing air by the air blower, and blowing out the coal dust on the detection table from the slag removal door to realize quick cleaning operation.
Compared with the prior art, the invention has the following advantages:
1) the ultrasonic detection device has the advantages of simple structure, ingenious design and small occupied space, and can quickly perform ultrasonic detection on the coal sample in a coal mining field;
2) because the coal sample is irregular in shape after being mined, the coal sample is clamped by the handle provided with the rubber leather pad, the coal sample can be effectively clamped by the deformation of the rubber leather pad, and the handle can drive the coal sample to rotate to adjust the cutting angle of the coal sample;
3) the combined ultrasonic detection table is adopted, so that the detection space is saved, and the ultrasonic detection device with four sides facing can be quickly formed in a matched mode;
4) utilize the air-blower to carry out quick clearance to examining test table, need not manual cleaning, reduce staff's work load.
Drawings
FIG. 1 is a schematic structural diagram of a box of an apparatus for ultrasonic testing of a coal sample site according to an embodiment;
FIG. 2 is a schematic structural view of the case shown in FIG. 1 illustrating an opened state of a top cover;
FIG. 3 is a schematic view of the internal structure of a box of the device for ultrasonic testing of a coal sample site;
FIG. 4 is a schematic view of the bottom structure of a test table of the device for ultrasonic testing of a coal sample site;
FIG. 5 is a schematic structural diagram of the detecting device shown in FIG. 3;
FIG. 6 is a schematic structural view of the ring driving frame;
fig. 7 is a schematic structural view of the handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-7, the device for ultrasonic testing of coal sample on site comprises a box body 1, an electric control device outside the box body 1, and a lifting device, a coal catching device, a cutting device and a detecting device which are arranged in the box body 1, wherein the detecting device is positioned at the bottom of the box body, the cutting device is positioned in the middle of the box body 1, and the coal catching device is connected with the lifting device;
the detection device comprises a detection table 21 positioned at the bottom in a box body 1, an ultrasonic lower detection plate 31 is arranged on the top surface of the detection table 21, an ultrasonic front detection plate 32 is vertically and fixedly arranged on one side of the detection table 21, a pressure electric cylinder 35 is arranged on the box body 1, the end part of an output shaft of the pressure electric cylinder 35 is connected with an ultrasonic rear detection plate 33 arranged corresponding to the ultrasonic front detection plate 32 through a connecting seat 36, a rotating motor 37 is arranged on the connecting seat 36, the output shaft of the rotating motor 37 is connected with an ultrasonic upper detection plate 34 through a connecting rod 38, and when the ultrasonic upper detection plate 34 is in a horizontal state, the ultrasonic upper detection plate 34 corresponds to the ultrasonic lower detection plate 31 in position;
a single chip microcomputer 26 and a blower 25 are arranged below the detection table 31, an air outlet of the blower 25 is connected with one end of an air pipe 27, and the other end of the air pipe 27 faces the top surface of the detection table 21; the top of the box body 1 is hinged with a top cover 12, the bottom of the box body is hinged with a slag removal door 14, and the top cover 12 and the slag removal door 14 are respectively provided with a lock catch 13 movably connected with the box body 1; the bottom of the box body 1 is also provided with a main power connector 15 and a main power switch button 16.
The coal grabbing device comprises two handles 51 which are arranged oppositely, the handles 51 are in a round table shape, the large port of each handle is blocked by a rubber leather pad 52, the small port of each handle is fixedly connected with an output rod of a coal grabbing electric cylinder 50 through a connecting handle 53, the outer part of each coal grabbing electric cylinder 50 is fixedly connected with the inner wall of a circular ring 6, circular ring driving frames are symmetrically arranged on two sides of each circular ring 6, a pair pressing wheel group which is in contact with the circular ring 6 is arranged on each circular ring driving frame, and a support 65 is arranged at the end part of each circular ring driving frame; the circular ring driving frame is an equilateral triangle frame body consisting of a vertical side frame 61 and two oblique side frames 62, the opposite pressing roller set comprises two self-driving wheels 63 and a guide wheel 64 which are positioned on the same plane, pin shafts of the self-driving wheels 63 are hinged to the end part of the vertical side frame 61, pin shafts of the guide wheels 64 are hinged to the intersection point of the oblique side frames 62, the self-driving wheels 63 are in contact with the outer circular surface of the circular ring 6, and the guide wheels 64 are in contact with the inner circular surface of the circular ring 6;
the lifting device comprises lifting mechanisms respectively positioned at two ends of the detection table 21 in the length direction, each lifting mechanism comprises two upright posts 22, each upright post 22 is provided with a groove rail, a screw rod 24 is arranged in each groove rail, one end of each screw rod 24 is connected with an output shaft of a lifting motor 23 arranged at the bottom in each upright post 22, and the other end of each screw rod 24 is in threaded connection with an internal thread hole in the support 65;
the cutting device comprises motor frames 41 correspondingly arranged on two sides of the detection table 21, a brushless motor 42 is arranged at the position of the middle section of the height of the box body 1 at the top of each motor frame 41, an output shaft of the brushless motor 42 is fixedly connected with the centers of the saw discs 43, and the gap between the two saw discs 43 is larger than the diameter of a large port of a handle 51 of the coal grabbing mechanism.
The electric control device comprises a display screen 17 and an operation key 18 which are arranged outside the box body 1, the operation key 18 and the display 17 are in signal connection with a single chip microcomputer 26 arranged at the bottom of the detection table 21, and the single chip microcomputer 26 is in signal connection with a pressure electric cylinder 35, a coal grabbing electric cylinder 50, a self-driven wheel 63, a brushless motor 42 and ultrasonic upper, lower, left and right detection tables.
The working process of the invention is as follows: firstly, the lifting motor is controlled to rotate through an operating button, the lifting motor drives a screw rod to rotate, a support drives a circular ring driving frame, an electric cylinder and a handle to move upwards to a target position, then a top cover at the bottom of a box body is opened, a mined coal sample is placed in the box body, meanwhile, the output shaft of the coal-grabbing electric cylinder is controlled to extend through the operating button, the coal sample is clamped by rubber pads at large port parts of two handles, then the lifting motor drives the screw rod to rotate reversely through the operating button, the handle drives the coal sample to move downwards to a cutting device, and brushless motors at two sides of the coal sample drive a saw disc to rotate and cut two sides of the coal sample into planes along with the downward movement of the coal sample, so;
the same operation is carried out, the screw rod rotates forwards, the handle drives the coal sample to move upwards, then the self-driving wheel on the circular ring driving frame rotates, the self-driving wheel is matched with the guide wheel, the circular ring and the coal grabbing electric cylinder can be driven to rotate in the circumferential direction, the handle and the coal block also rotate in the circumferential direction to 90 degrees, two planes of the first cutting are parallel to the vertical direction, then the screw rod is controlled to turn over, the handle drives the coal sample to move downwards to the cutting device, and along with the downward movement of the coal sample, the brushless motors on two sides of the coal sample drive the saw disc to rotate and cut two sides of the coal sample into planes, so that the secondary cutting is completed;
the coal sample after secondary cutting has four smooth sides of upper and lower, preceding, back to and reach the requirement of carrying out ultrasonic detection, control lead screw continues to overturn and detect the platform contact under the supersound of platform with the coal sample, then control the output shaft of grabbing coal electric cylinder and retract, handle and coal sample separation.
Then the output shaft extension of pressure electric cylinder, push the connecting seat to the coal sample, detect after the supersound and can drive the coal sample and continue to move after the platform contact coal sample, detect the platform contact before coal sample and supersound, then rotate the motor and rotate, and detect the platform rotation to its contact coal sample on driving the supersound through the connecting rod, so, can realize that the supersound is preceding, back, four level and smooth sides that the platform was contradicted the coal sample respectively are detected to the upper and lower platform of detecting, then start the work of supersound and detect the platform, the data display that reachs is in the display screen.
And then opening the top cover, taking out the coal sample, simultaneously opening the air blower, blowing air by the air blower, and blowing out the coal dust on the detection table from the slag removal door to realize quick cleaning operation.
Claims (10)
1. On-spot ultrasonic testing of coal sample uses equipment, a serial communication port, equipment includes box, the outside electrically controlled device of box and sets up hoisting device, grab coal device, cutting device and detection device in the box, and detection device is located bottom half, cutting device and is located the box middle part, grabs the coal device and is connected with hoisting device, detection device is including being located the detection platform of box bottom, detects the platform top surface and is equipped with the ultrasonic lower probe plate, detects platform one side and sets firmly the probe plate before the supersound perpendicularly, and the output shaft tip that is equipped with pressure electric jar and pressure electric jar on the box sets firmly the ultrasonic back probe plate that the probe plate set up before corresponding supersound, and the probe plate top rotates with the supersound on the supersound behind the supersound and is connected.
2. The apparatus for ultrasonic testing of a coal sample in situ as claimed in claim 1, wherein the pressure cylinder is connected to the ultrasonic rear probe plate through a connecting base, the connecting base is provided with a rotating motor, an output shaft of the rotating motor is connected to the ultrasonic upper probe plate through a connecting rod, and the ultrasonic upper probe plate corresponds to the ultrasonic lower probe plate in position when the ultrasonic upper probe plate is in a horizontal state.
3. The coal sample on-site ultrasonic testing device according to claim 1, wherein the lifting device comprises lifting mechanisms respectively located at two ends of the testing table in the length direction, each lifting mechanism comprises two upright posts, each upright post is provided with a groove rail, a screw rod is arranged in each groove rail, one end of each screw rod is connected with an output shaft of a lifting motor arranged at the bottom in each upright post, and the other end of each screw rod is in threaded connection with the coal grabbing device.
4. The device for the on-site ultrasonic testing of the coal sample according to claim 3, wherein the coal grabbing device comprises two handles arranged oppositely, the handles are connected with an output rod of a coal grabbing electric cylinder, supports are arranged on two sides of the coal grabbing electric cylinder, and internal thread holes matched with screw threads of the screw rod are arranged on the supports.
5. The coal sample on-site ultrasonic testing device according to claim 4, wherein the handle is in a circular truncated cone shape, a large port of the handle is blocked by a rubber cushion, and a small port of the handle is fixedly connected with an output rod of the coal catching electric cylinder through a connecting handle.
6. The device for the on-site ultrasonic testing of the coal sample according to claim 4, wherein the outer portion of the coal-grasping cylinder is fixedly connected with the inner wall of the circular ring, circular ring driving frames are symmetrically arranged on two sides of the circular ring, the circular ring driving frames are provided with opposite pressing wheel sets which are in contact with the circular ring surface, and a support which is in threaded fit with the screw rod is arranged at the end portion of the circular ring driving frame.
7. The apparatus for ultrasonic testing of coal sample on site as claimed in claim 6, wherein said circular ring driving frame is an equilateral triangle frame consisting of two vertical frames and two oblique frames, said pair of pressing wheel sets comprises two self-driving wheels and a guide wheel located on the same plane, the pin shafts of the self-driving wheels are hinged on the ends of the vertical frames, the pin shafts of the guide wheels are hinged on the intersection points of the oblique frames, the self-driving wheels are in contact with the outer circular ring surface, and the guide wheels are in contact with the inner circular ring surface.
8. The device for the on-site ultrasonic testing of the coal sample according to claim 1, wherein the cutting device comprises motor frames correspondingly arranged at two sides of the testing table, a brushless motor is arranged at the middle position of the height of the box body on the top of the motor frames, an output shaft of the brushless motor is fixedly connected with the centers of the saw discs, and the gap between the two saw discs is larger than the width of the coal grabbing mechanism.
9. The coal sample on-site ultrasonic testing equipment according to claim 1, wherein the electric control device comprises a display screen and an operation button which are arranged outside the box body, and the operation button and the display are in signal connection with the detection device, the coal catching device and the cutting device through a single chip microcomputer arranged at the bottom of the detection platform.
10. The on-site ultrasonic testing apparatus for coal samples according to claim 1,
a single chip microcomputer and a blower are arranged below the detection platform, an air outlet of the blower is connected with one end of an air pipe, and the other end of the air pipe faces the top surface of the detection platform; the top of the box body is hinged with a top cover, the bottom of the box body is hinged with a slag removal door, and the top cover and the slag removal door are respectively provided with a lock catch movably connected with the box body; the bottom of the box body is also provided with a main power supply connector and a main power supply switch button.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710379755.0A CN107192762B (en) | 2017-05-25 | 2017-05-25 | Equipment for coal sample on-site ultrasonic detection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710379755.0A CN107192762B (en) | 2017-05-25 | 2017-05-25 | Equipment for coal sample on-site ultrasonic detection |
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| Publication Number | Publication Date |
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| CN107192762A CN107192762A (en) | 2017-09-22 |
| CN107192762B true CN107192762B (en) | 2020-06-26 |
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