CN110578467B - Coal exploitation sampling device - Google Patents
Coal exploitation sampling device Download PDFInfo
- Publication number
- CN110578467B CN110578467B CN201910993966.2A CN201910993966A CN110578467B CN 110578467 B CN110578467 B CN 110578467B CN 201910993966 A CN201910993966 A CN 201910993966A CN 110578467 B CN110578467 B CN 110578467B
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- Prior art keywords
- rod
- screw rod
- screw
- sampling device
- fixing
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- 238000005070 sampling Methods 0.000 title claims abstract description 57
- 239000003245 coal Substances 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 238000005065 mining Methods 0.000 claims abstract description 19
- 238000007790 scraping Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/32—Undercarriages for supports with three or more telescoping legs
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a coal mining sampling device. The coal exploitation sampling device comprises a supporting frame; the sampling mechanism is arranged in the support frame; the sliding mechanism is fixed at the bottom end of the supporting frame; the fixing mechanism is arranged at the top end of the sliding mechanism and comprises a fixing box, a screw rod, a rubber pad, clamping plates and gears, wherein the fixing box is fixed on the top surface of the sliding mechanism, the clamping plates are symmetrically arranged in the fixing box, the gears are connected in a sliding manner in the clamping plates, the gears are connected with the screw rod in a threaded manner, and the rubber pad is arranged on the bottom surface of the screw rod; the inside of the fixed box is rotationally connected with the screw rod, and the screw rod is meshed with the gear; and the connecting mechanism is clamped with one end of the screw rod. The coal exploitation sampling device provided by the invention improves the exploitation sample stability.
Description
Technical Field
The invention relates to the technical field of coal exploitation, in particular to a coal exploitation sampling device.
Background
Sampling the coal seam, and taking a small part of representative samples from the coal seam for analysis, test and identification according to certain specifications and requirements. The purpose of coal seam sampling is to determine the coal types, the coal quality characteristics and the change rules of the coal types and the coal technological properties of the coal beds which can be collected in mining areas or well fields through the data obtained by the test and the physical test of the coal samples so as to accurately evaluate the coal quality, determine the processing technical characteristics and the industrial utilization direction of the coal and provide reliable coal quality data for the development and the reasonable utilization of coal resources.
Before sampling, the sampler needs to be transported to a sampling place, and in the outdoor sampling process, the sampler is difficult to level due to the rugged ground, so that the sampler can shake violently on the ground, the stability of the sampler is affected, and the sampler is inconvenient to use. And the sampling opportunity is damaged in the process of sampling harder rock, so that a new coal mining sampling device is needed to solve the technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides the coal mining sampling device which improves the stability of a mining sample and protects the drill rod of a sampler.
In order to solve the technical problems, the coal mining sampling device provided by the invention comprises: a support frame; the sampling mechanism is arranged in the support frame; the sliding mechanism is fixed at the bottom end of the supporting frame; the fixing mechanism is arranged at the top end of the sliding mechanism and comprises a fixing box, a screw rod, a rubber pad, clamping plates and gears, wherein the fixing box is fixed on the top surface of the sliding mechanism, the clamping plates are symmetrically arranged in the fixing box, the gears are connected in a sliding manner in the clamping plates, the gears are connected with the screw rod in a threaded manner, and the rubber pad is arranged on the bottom surface of the screw rod; the inside of the fixed box is rotationally connected with the screw rod, and the screw rod is meshed with the gear; the connecting mechanism is clamped with one end of the screw rod; the protection mechanism is arranged on the inner side wall of the supporting frame.
Preferably, the support frame comprises an upper support column and a lower support column, and the upper support column is mounted inside the lower support column.
Preferably, the protection mechanism comprises a retainer ring, a scraping plate, a connecting plate, a first spring, a first guide rod, a second spring and a second guide rod, wherein the connecting plate is installed on the outer side wall of the lower support column, the center of the connecting plate is connected with the circular retainer ring, the center of the retainer ring is provided with the drill rod, the scraping plate is installed in the connecting plate, the top of the scraping plate is welded with the first guide rod, the first guide rod is sleeved with the first spring, one end of the first guide rod is abutted against the second guide rod, and the second guide rod is sleeved with the second spring.
Preferably, the sampling mechanism comprises a drill rod, a motor, a fixing frame and a hydraulic push rod, wherein the hydraulic push rod is arranged on the top surface of the supporting frame, and the bottom end of the hydraulic push rod is fixedly connected with the fixing frame; the bottom fixed connection of mount the motor just the bottom of motor rotates connects the spiral drilling rod.
Preferably, the sliding mechanism comprises a wheel and a supporting plate, the supporting plate is installed at the bottom end of the supporting frame, and the wheel is installed at the bottom end of the supporting plate.
Preferably, the top surface of backup pad fixed connection the fixed box, the inside sliding connection of fixed box the screw rod, just the screw rod with threaded connection between the backup pad.
Preferably, the connecting mechanism comprises a rocker, a convex column and a clamping groove, wherein one end of the screw rod is provided with the clamping groove of a hexagonal prism, the inside of the clamping groove is connected with the convex column of the hexagonal prism in a sliding manner, and one end of the convex column is fixedly connected with the rocker.
Preferably, a hook is mounted at the top end of the supporting frame, and the hook is clamped with the rocker.
Preferably, the maximum distance between the screw bottom surface and the support plate bottom surface is greater than the height of the wheel, and half of the screw height is greater than the fixed box height.
Compared with the related art, the coal mining sampling device provided by the invention has the following beneficial effects:
(1) The invention provides a coal mining sampling device, when the device is moved to a sampling place, when one end of a supporting frame inclines, a connecting mechanism is rotated, so that the connecting mechanism drives a screw rod to rotate in a fixed box, the screw rod rotates to drive a gear to rotate in a clamping plate, the gear is in threaded connection with a screw rod, the gear rotates to drive the screw rod to rotate downwards in the fixed box, the screw rod drives a rubber pad to rotate downwards, the rubber pad moves downwards to be in contact with the ground, the screw rod continues to move downwards, the screw rod drives the rubber pad to move, the sliding mechanism is separated from the ground, after the four sliding mechanisms are separated from the ground, the screw rod continues to rotate, the screw rod drives the sliding mechanism to move, and the four sliding mechanisms are positioned in the same plane by adjusting the distance between the bottom surfaces of the screw rod, so that the supporting frame and the sampling mechanism are vertically positioned on the bottom surface, the sampling mechanism is convenient to rotate into the bottom to perform sampling, and when the sampling mechanism rotates, the vibration of the sampling mechanism is reduced, and the vibration is stable when the sampling mechanism is used.
(2) The invention provides a coal mining sampling device, which is beneficial to protecting a drill rod, preventing the drill rod from larger vibration and protecting the head of the drill rod in the process of encountering a harder coal layer for sampling, can loosen the soil around the drill rod to the periphery, and is convenient for the drill rod to enter the inside of a rock stratum.
Drawings
FIG. 1 is a schematic diagram of a coal mining sampling apparatus according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of the fixing mechanism shown in FIG. 1;
FIG. 3 is an exploded view of the rocker and the post shown in FIG. 2;
fig. 4 is a schematic view of the internal structure of the protection mechanism shown in fig. 1.
Reference numerals in the drawings: 1. the device comprises a support frame, 11, an upper support column, 12, a lower support column, 2, a sampling mechanism, 21, a drill rod, 22, a motor, 23, a fixing frame, 24, a hydraulic push rod, 3, a sliding mechanism, 31, a wheel, 32, a support plate, 4, a hook, 5, a connecting mechanism, 51, a rocker, 52, a convex column, 53, a clamping groove, 6, a fixing mechanism, 61, a fixing box, 62, a screw rod, 63, a screw rod, 64, a rubber pad, 65, a clamping plate, 66, a gear, 7, a protection mechanism, 71, a retainer ring, 72, a scraper, 73, a connecting plate, 74, a first spring, 75, a first guide rod, 76, a second spring, 77 and a second guide rod.
Detailed Description
The invention will be further described with reference to the drawings and embodiments.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4 in combination, fig. 1 is a schematic structural diagram of a preferred embodiment of a coal mining sampling device according to the present invention; FIG. 2 is a schematic view of the internal structure of the fixing mechanism shown in FIG. 1; FIG. 3 is an exploded view of the rocker and the post shown in FIG. 2; fig. 4 is a schematic view of the internal structure of the protection mechanism shown in fig. 1. The coal exploitation sampling device includes: a support frame 1; a sampling mechanism 2, wherein the sampling mechanism 2 is installed inside the support frame 1; the sliding mechanism 3 is fixed at the bottom end of the support frame 1; the fixing mechanism 6 is installed at the top end of the sliding mechanism 3, the fixing mechanism 6 comprises a fixing box 61, a screw rod 62, a screw rod 63, a rubber pad 64, a clamping plate 65 and a gear 66, the fixing box 61 is fixed on the top surface of the sliding mechanism 3, the clamping plate 65 is symmetrically installed in the fixing box 61, the gear 66 is slidingly connected in the clamping plate 65, the gear 66 is in threaded connection with the screw rod 63, and the rubber pad 64 is installed on the bottom surface of the screw rod 63; the inside of the fixed box 61 is rotatably connected with the screw 62, and the screw 63 is meshed with the gear 66; a connecting mechanism 5, wherein the connecting mechanism 5 is engaged with one end of the screw 62; the protection mechanism 7, protection mechanism 7 installs the inside wall at support frame 1.
Specifically, the support frame 1 includes an upper support column 11 and a lower support column 12, and the upper support column 11 is mounted inside the lower support column 12, so as to realize sliding between the upper support column 11 and the lower support column 12.
Specifically, the protection mechanism 7 includes retaining ring 71, scraper blade 72, connecting plate 73, first spring 74, first guide arm 75, second spring 76 and second guide arm 77, connecting plate 73 is installed on the lateral wall of lower support column 12, just the center department of connecting plate 73 is connected with circular shape retaining ring 71, install in the center department of retaining ring 71 drilling rod 21, the internally mounted of connecting plate 73 has scraper blade 72, just the top welding first guide arm 75 of scraper blade 72, just the cover is equipped with first spring 74 on the first guide arm 75, the one end of first guide arm 75 is contradicted second guide arm 77, just the cover is equipped with second spring 76 on the second guide arm 77, in the sampling process of meetting harder coal layer, protection mechanism 7 is favorable to protecting drilling rod 21, prevents that drilling rod 21 from appearing great vibration to be favorable to protecting the head of drilling rod 21, can take off the loose soil around drilling rod 21 around to the surrounding, make things convenient for 21 to enter into the inside of stratum for the efficiency of taking a sample.
Specifically, the sampling mechanism 2 comprises a drill rod 21, a motor 22, a fixing frame 23 and a hydraulic push rod 24, wherein the hydraulic push rod 24 is installed on the top surface of the supporting frame 1, and the bottom end of the hydraulic push rod 24 is fixedly connected with the fixing frame 23; the bottom end of the fixing frame 23 is fixedly connected with the motor 22, the bottom end of the motor 22 is rotationally connected with the spiral drill rod 21, in order to facilitate the motor 22 to drive the spiral drill rod 21 to rotate, the hydraulic push rod 24 pushes the fixing frame 23 and the motor 22 to move downwards, when the drill rod 21 rotates, the drill rod 21 moves downwards to enter the ground, and the drill rod 21 rotates to enter the ground to sample coal.
Specifically, the sliding mechanism 3 includes a wheel 31 and a support plate 32, the support plate 32 is mounted at the bottom end of the support frame 1, and the wheel 31 is mounted at the bottom end of the support plate 32, so that the wheel 31 is fixed to the bottom surface of the support plate 32 for convenience, and the wheel 31 rolls on the ground, thereby pushing the support frame 1 to move on the ground.
Specifically, the top surface of the support plate 32 is fixedly connected with the fixing box 61, the inside of the fixing box 61 is slidably connected with the screw 63, and the screw 63 is in threaded connection with the support plate 32, so that the screw 63 can move from the inside of the support plate 32, and the support plate 32 fixes the screw 63 to prevent the screw 63 from moving randomly in the inside of the fixing box 61.
Specifically, the connection mechanism 5 includes a rocker 51, a boss 52 and a clamping groove 53, one end of the screw rod 62 is provided with the clamping groove 53 of a hexagonal prism, the inside of the clamping groove 53 is slidably connected with the boss 52 of a hexagonal prism, and one end of the boss 52 is fixedly connected with the rocker 51, so that the boss 52 is conveniently inserted into the clamping groove 53, and the boss 52 is clamped with the clamping groove 53, thereby rotating the rocker 51, the rocker 51 drives the boss 52 to rotate, and the boss 52 drives the screw rod 62 to rotate in the fixing box 61.
Specifically, the hook 4 is mounted at the top end of the support frame 1, and the hook 4 is engaged with the rocker 51, so that when the rocker 51 is not used, the rocker 51 is suspended on the hook 4, and the support frame 1 is convenient to drive the rocker 51 to move.
Specifically, the maximum distance between the bottom surface of the screw 63 and the bottom surface of the support plate 32 is greater than the height of the wheel 31, and half of the height of the screw 63 is greater than the height of the fixed box 61, so that after the rubber pad 64 moves to contact with the ground, the screw 63 drives the rubber pad 64 to move downwards continuously, so that the screw 63 drives the support plate 32 to move downwards, the wheel 31 is separated from the ground, and the wheel 31 is suspended.
The working principle of the coal mining sampling device provided by the invention is as follows: the support frame 1 is moved, and the support frame 1 drives the wheels 31 to roll on the ground, so that the support frame 1 is driven to move, and the support frame 1 is carried to a proper sampling place. The convex columns 52 enter the clamping grooves 53, the convex columns 52 are clamped with the clamping grooves 53, the rocking rod 51 is rotated, the rocking rod 51 drives the convex columns 52 to rotate, the convex columns 52 drive the screw rods 62 to rotate in the fixed box 61, the screw rods 62 rotate to drive the gears 66 to rotate in the clamping plates 65, the gears 66 are in threaded connection with the screw rods 63, the gears 66 rotate to drive the screw rods 63 to rotate downwards in the fixed box 61 by utilizing the turbine screw rod principle, the screw rods 63 drive the rubber pads 64 to rotate downwards, the rubber pads 64 move downwards to contact the ground, the rocking rod 51 is continuously rotated, the screw rods 63 continue to move downwards, the screw rods 63 drive the rubber pads 64 to move, the wheels 31 are separated from the ground, the rocking rod 51 is inserted into the clamping grooves 53, and the other wheels 31 are separated from the ground by the same method. When the four wheels 31 are separated from the ground, the screw rod 62 is continuously rotated, so that the screw rod 63 drives the supporting plate 32 to move, and the four supporting plates 32 are positioned in the same plane on the uneven ground by adjusting the distance between the bottom surface of the screw rod 63 and the bottom surface of the supporting plate 32, so that the supporting frame 1 and the sampling mechanism 2 are vertically positioned on the bottom surface. The device is connected with a power supply, the motor 22 is turned on, the motor 22 drives the drill rod 21 to rotate, the hydraulic push rod 24 is turned on, the hydraulic push rod 24 pushes the fixing frame 23 and the motor 22 to move downwards, when the drill rod 21 rotates, the drill rod 21 moves downwards to enter the ground, the drill rod 21 rotates to enter the ground to sample coal, and when the drill rod 21 is in a spiral shape, the rubber pad 64 dampens the vibration of the drill rod 21, reduces the shaking degree of the drill rod 21 during use, and improves the stability of the drill rod 21 during use. When the use is finished, the screw rod 62 is rotated again, so that the screw rod 63 and the rubber pad 64 move downwards, the wheel 31 is contacted with the ground, and people can conveniently push the support frame 1 to move on the ground.
Compared with the related art, the coal mining sampling device provided by the invention has the following beneficial effects:
the invention provides a coal mining sampling device, when the device is moved to a sampling place, when one end of a supporting frame 1 is inclined, a connecting mechanism 5 is rotated, the connecting mechanism 5 drives a screw rod 62 to rotate in a fixed box 61, the screw rod 62 rotates to drive a gear 66 to rotate in a clamping plate 65, the gear 66 is in threaded connection with the screw rod 63, the gear 66 rotates to drive the screw rod 63 to rotate downwards in the fixed box 61, the screw rod 63 drives a rubber pad 64 to rotate downwards, the rubber pad 64 moves downwards to be in contact with the ground, the screw rod 63 continues to move downwards, the screw rod 63 drives the rubber pad 64 to enable the sliding mechanism 3 to be separated from the ground, after the four sliding mechanisms 3 are separated from the ground, the screw rod 62 continues to rotate, the screw rod 63 drives the sliding mechanism 3 to move, the distance between the bottom surface of the screw rod 63 and the bottom surface of the sliding mechanism 3 is adjusted, the four sliding mechanisms 3 are located in the same plane, and accordingly the supporting frame 1 and the bottom surface of the sampling mechanism 2 are enabled to be in contact with the ground, the sampling mechanism 2 is convenient to rotate, and the sampling mechanism 2 is convenient to swing, and the sampling mechanism 2 is enabled to move in a shaking state, and the sampling mechanism is convenient to swing, and the sampling mechanism is enabled to move, and the stability is stable.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (5)
1. A coal mining sampling device, comprising:
a support frame;
the sampling mechanism is arranged in the support frame;
the sliding mechanism is fixed at the bottom end of the supporting frame;
the fixing mechanism is arranged at the top end of the sliding mechanism and comprises a fixing box, a screw rod, a rubber pad, clamping plates and gears, wherein the fixing box is fixed on the top surface of the sliding mechanism, the clamping plates are symmetrically arranged in the fixing box, the gears are connected in a sliding manner in the clamping plates, the gears are connected with the screw rod in a threaded manner, and the rubber pad is arranged on the bottom surface of the screw rod; the inside of the fixed box is rotationally connected with the screw rod, and the screw rod is meshed with the gear;
the connecting mechanism is clamped with one end of the screw rod;
the protection mechanism is arranged on the inner side wall of the support frame;
the support frame comprises an upper support column and a lower support column, and the upper support column is arranged in the lower support column;
the sampling mechanism comprises a drill rod, a motor, a fixing frame and a hydraulic push rod, wherein the hydraulic push rod is arranged on the top surface of the supporting frame, and the bottom end of the hydraulic push rod is fixedly connected with the fixing frame; the bottom end of the fixing frame is fixedly connected with the motor, and the bottom end of the motor is rotationally connected with the spiral drill rod;
the protection mechanism comprises a check ring, a scraping plate, a connecting plate, a first spring, a first guide rod, a second spring and a second guide rod, wherein the connecting plate is arranged on the outer side wall of the lower supporting column, the center of the connecting plate is connected with a circular check ring, the center of the check ring is provided with the drill rod, the scraping plate is arranged in the connecting plate, the top of the scraping plate is welded with the first guide rod, the first guide rod is sleeved with the first spring, one end of the first guide rod is abutted against the second guide rod, and the second guide rod is sleeved with the second spring;
the connecting mechanism comprises a rocker, a convex column and a clamping groove, wherein one end of the screw rod is provided with the clamping groove of a hexagonal prism, the inside of the clamping groove is connected with the convex column of the hexagonal prism in a sliding mode, and one end of the convex column is fixedly connected with the rocker.
2. The coal mining sampling device of claim 1, wherein the sliding mechanism includes a wheel and a support plate, the support plate being mounted to a bottom end of the support frame, and the wheel being mounted to a bottom end of the support plate.
3. The coal mining sampling device of claim 2, wherein the top surface of the support plate is fixedly connected with the fixed box, the interior of the fixed box is slidingly connected with the screw, and the screw is in threaded connection with the support plate.
4. The coal mining sampling device of claim 1, wherein a hook is mounted on a top end of the support frame and engages the rocker.
5. The coal mining sampling device of claim 2, wherein a maximum distance between the screw bottom surface and the support plate bottom surface is greater than a height of the wheel, and a half of the screw height is greater than the stationary box height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993966.2A CN110578467B (en) | 2019-10-18 | 2019-10-18 | Coal exploitation sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910993966.2A CN110578467B (en) | 2019-10-18 | 2019-10-18 | Coal exploitation sampling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110578467A CN110578467A (en) | 2019-12-17 |
| CN110578467B true CN110578467B (en) | 2024-04-05 |
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| CN201910993966.2A Active CN110578467B (en) | 2019-10-18 | 2019-10-18 | Coal exploitation sampling device |
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| CN112240024B (en) * | 2020-09-10 | 2022-02-18 | 江西中恒地下空间科技有限公司 | Underground soil taking system |
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