Longitudinal sampling device for coal detection and capable of simultaneously sampling multiple points

Abstract

The invention relates to the technical field of coal sampling, in particular to a longitudinal sampling device used for coal detection and capable of achieving multi-point simultaneous sampling inspection.The longitudinal sampling device comprises stand columns and universal wheels, a sampling device is arranged between the left stand column and the right stand column, and the sampling device comprises a sampling mechanism, an adjusting mechanism and a measuring mechanism; the sampling mechanism is arranged between the left and right stand columns, the adjusting mechanisms are arranged on the tops and side surfaces of the stand columns, and the measuring mechanisms are arranged on the front surfaces and side surfaces of the stand columns. According to the longitudinal sampling device for coal detection and capable of simultaneously sampling multiple points, by arranging the sampling mechanism, when the inner rod rotates to the position where the sampling groove is right opposite to the groove body, coal around the inner rod can enter the sampling groove along the groove body, coal at different depths can be sampled at the same time, the sampling frequency is reduced, and the sampling efficiency is improved; a motor IV drives a right rotating shaft to rotate, so that a supporting plate drives an outer rod to rotate, the angle of the outer rod entering a coal mine is adjusted, and the sampling flexibility is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal sampling, in particular to a longitudinal sampling device capable of multi-point simultaneous sampling for coal detection. BACKGROUND

[0002] Accurate control of coal quality needs to be realized through regular sampling and detection. However, the existing sampling device has significant limitations and cannot meet the needs of efficient and accurate sampling. The specific problems are as follows: Single sampling method, insufficient sample representativeness: Most devices can only perform single-direction fixed-point sampling and cannot cover different depths and locations of the coal pile.

[0003] Low efficiency of longitudinal sampling, complicated operation: When different depth coal samples are needed, the existing device needs to adjust the sampling position multiple times and repeat the sampling operation. Each sampling needs to be repositioned and the sampling tool needs to be inserted, which not only consumes a lot of time and manpower, but also may disturb the coal pile due to multiple operations, damage the original distribution state of the sample, introduce human error, and reduce the accuracy of the detection results.

[0004] Lack of precise control in the sampling process, high error risk: The existing device usually lacks precise measurement and adjustment mechanisms for sampling depth and angle. It is difficult for the detection personnel to accurately control the depth and angle of the sampling tool insertion, which may result in insufficient or excessive sampling depth and failure to obtain the target layer coal sample. At the same time, due to the lack of precise control, the consistency of different batches of sampling is poor, which further affects the reliability and comparability of the detection results.

[0005] Taking the longitudinal sampling device with publication number CN212363687U as an example, although it realizes automatic sampling and multi-point longitudinal sampling to some extent, it still needs multiple operations when sampling different depth coal, and cannot sample different depth coal at the same time, which is complicated and not conducive to improving the detection efficiency and accuracy, and cannot meet the needs of external detection inspectors for efficient and accurate sampling. SUMMARY

[0006] The present application aims to provide a longitudinal sampling device capable of multi-point simultaneous sampling for coal detection to solve the problems raised in the background.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a longitudinal sampling device capable of multi-point simultaneous sampling for coal detection, comprising a stand and a universal wheel, the universal wheel is fixedly installed at the bottom of the left and right two stands, a sampling device is arranged between the left and right two stands, the sampling device comprises a sampling mechanism, an adjustment mechanism and a measurement mechanism.

[0008] The sampling mechanism is arranged between the left and right columns, the adjusting mechanism is arranged on the top and side of the column, and the measuring mechanism is arranged on the front and side of the column.

[0009] The sampling mechanism comprises a sliding block one, a sliding block two, a rotating shaft, a support plate, an outer rod, an inner rod, a motor one, a driving shaft, a gear one, a gear two, a housing, a motor two, a worm wheel and a worm gear. The sliding block one is slidingly connected to the inside of the left column, the sliding block two is slidingly connected to the inside of the right column, the rotating shaft is two in number and is rotationally connected to the inside of the sliding block one and the sliding block two, the support plate is fixedly installed at one end adjacent to the two rotating shafts, the outer rod is rotationally connected to the inside of the support plate, the inner rod is rotationally connected to the inside of the outer rod, the motor one is fixedly installed at the left bottom of the support plate, the driving shaft is fixedly installed at the output end of the motor one, the gear one is fixedly installed on the outer side of the upper end of the driving shaft, the gear two is fixedly installed on the outer side of the upper end of the outer rod, the housing is fixedly installed at the top of the outer rod, the motor two is fixedly installed at the right side of the housing, the worm wheel is fixedly installed on the outer side of the upper end of the inner rod, and the worm gear is fixedly installed at the output end of the motor two.

[0010] Preferably, grooves are arranged on the surface of the outer rod at equal intervals, sampling grooves are arranged in the inner rod at equal intervals, and the sampling grooves are equal in height to the grooves. When the inner rod is rotated to a position where the sampling grooves are opposite to the grooves, the coal around the sampling grooves can enter the sampling grooves along the grooves, and different depths of coal can be sampled at the same time, thereby reducing the sampling frequency and improving the sampling efficiency.

[0011] Preferably, the bottom of the outer rod is conical, the gear one and the gear two are engaged with each other, and the worm gear and the worm wheel are engaged with each other. The gear one and the gear two are matched to realize force transmission, so that the outer rod is rotated. The conical bottom of the outer rod makes the outer rod more easily enter the deep part of the coal mine. The worm gear and the worm wheel are matched to drive the inner rod to rotate when the motor two rotates.

[0012] Preferably, the adjusting mechanism comprises a motor three, a threaded rod and a motor four. The motor three is fixedly installed at the top of the left column, the threaded rod is fixedly installed at the output end of the motor three and located in the inside of the left column, and the motor four is fixedly installed at the right side of the sliding block two.

[0013] Preferably, a threaded hole is arranged in the inside of the sliding block one, the threaded rod is screw-connected to the inside of the sliding block one, and the output end of the motor four is fixedly connected to the right rotating shaft. The motor three drives the threaded rod to rotate and is screw-connected to the sliding block one, so that the sliding block one drives the support plate to move up and down, thereby adjusting the depth of the outer rod entering the coal mine. The motor four drives the right rotating shaft to rotate, so that the support plate drives the outer rod to rotate, thereby adjusting the angle of the outer rod entering the coal mine and improving the flexibility of sampling.

[0014] Preferably, the measuring mechanism comprises a disc, a fixed rod, a pointer one, a measuring scale and a pointer two, the disc is fixedly installed on the left side of the slider two, the fixed rod is fixedly installed on the right side of the support plate, the pointer one is fixedly installed on the right end of the fixed rod, the measuring scale is fixedly installed on the front of the left stand, and the pointer two is fixedly installed on the front of the slider one.

[0015] Preferably, a scale groove is formed on the left side surface of the disc and the front of the measuring scale, the angle of the outer rod entering the coal mine is measured through cooperation of the disc and the pointer one, and the depth of the outer rod entering the coal mine is measured through cooperation of the measuring scale and the pointer two.

[0016] Preferably, a through hole is formed in the disc, and the right side rotating shaft is rotatably connected with the disc through the through hole, so that the rotation of the disc does not interfere with the rotating shaft.

[0017] Compared with the prior art, the present application has the following advantages: 1. The longitudinal sampling device for multiple-point simultaneous sampling in coal detection, through the setting of the sampling mechanism, when the inner rod rotates to the position where the sampling groove is opposite to the groove body, the coal around the inner rod can enter the sampling groove along the groove body, so that the coal at different depths can be sampled simultaneously, the sampling times are reduced, and the sampling efficiency is improved.

[0018] 2. The longitudinal sampling device for multiple-point simultaneous sampling in coal detection, through the setting of the adjusting mechanism, the right side rotating shaft is driven to rotate by the motor four, the support plate drives the outer rod to rotate, the angle of the outer rod entering the coal mine is adjusted, and the flexibility of sampling is improved.

[0019] 3. The longitudinal sampling device for multiple-point simultaneous sampling in coal detection, through the measuring mechanism, the angle of the outer rod entering the coal mine is measured through cooperation of the disc and the pointer one, and the depth of the outer rod entering the coal mine is measured through cooperation of the measuring scale and the pointer two, so that the sampling accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the sampling mechanism structure of the present application; Figure 3 It is a structure split drawing of the outer rod groove body and the inner rod sampling groove in the staggered position; Figure 4The structure split view of the outer rod groove and the inner rod sampling groove in the opposite position of the application; Figure 5 The internal structure cutaway view of the inner rod of the application; Figure 6 The mechanism schematic diagram of the adjusting mechanism and the support plate connection of the application; Figure 7 The Figure 6 The enlarged view of A in the middle.

[0022] In the figure: 1, stand; 2, universal wheel; 301, slider one; 302, slider two; 303, rotating shaft; 304, support plate; 305, outer rod; 306, inner rod; 307, motor one; 308, driving shaft; 309, gear one; 310, gear two; 311, housing; 312, motor two; 313, worm gear; 314, worm; 401, motor three; 402, threaded rod; 403, motor four; 501, disc; 502, fixed rod; 503, pointer one; 504, measuring scale; 505, pointer two. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0024] In the application, unless explicitly defined and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or can be integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For a person of ordinary skill in the art, the specific meanings of the above terms in the application can be understood according to the specific circumstances.

[0025] Please refer to Figures 1-7 The application provides a technical solution: a longitudinal sampling device capable of multi-point simultaneous sampling for coal detection, which comprises a stand 1 and a universal wheel 2. The universal wheel 2 is fixedly installed at the bottom of the left and right two stands 1, and has self-locking property. The device is moved to the port position through the universal wheel 2. A sampling device is arranged between the left and right two stands 1. The sampling device comprises a sampling mechanism, an adjusting mechanism and a measuring mechanism.

[0026] The sampling mechanism is arranged between the two left and right columns 1, the adjusting mechanism is arranged on the top and side of the column 1, and the measuring mechanism is arranged on the front and side of the column 1.

[0027] The sampling mechanism comprises a slider one 301, a slider two 302, a rotating shaft 303, a support plate 304, an outer rod 305, an inner rod 306, a motor one 307, a driving shaft 308, a gear one 309, a gear two 310, a shell 311, a motor two 312, a worm wheel 313 and a worm 314. The slider one 301 is slidingly connected to the inside of the left column 1, the slider two 302 is slidingly connected to the inside of the right column 1, the rotating shaft 303 is two in number and is rotatably connected to the inside of the slider one 301 and the slider two 302, the support plate 304 is fixedly installed at one end adjacent to the two rotating shafts 303, the outer rod 305 is rotatably connected to the inside of the support plate 304, the outer rod 305 is provided with equidistantly distributed groove bodies on the surface, the inner rod 306 is provided with equidistantly distributed sampling grooves in the inside, and the sampling grooves are the same height as the groove bodies. When the inner rod 306 is rotated to the position where the sampling grooves are opposite to the groove bodies, the coal around the inner rod 306 can enter the sampling grooves along the groove bodies, the coal at different depths can be simultaneously sampled, the sampling times are reduced, and the sampling efficiency is improved. The inner rod 306 is rotatably connected to the inside of the outer rod 305, the motor one 307 is fixedly installed at the bottom left of the support plate 304, the driving shaft 308 is fixedly installed at the output end of the motor one 307, the gear one 309 is fixedly installed on the outer side of the upper end of the driving shaft 308, the gear two 310 is fixedly installed on the outer side of the upper end of the outer rod 305, the bottom of the outer rod 305 is conical, the gear one 309 and the gear two 310 are meshed with each other, the worm 314 and the worm wheel 313 are meshed with each other, the transmission of force is realized through the cooperation of the gear one 309 and the gear two 310, the outer rod 305 is rotated, the conical bottom of the outer rod 305 makes the outer rod 305 more easily enter the deep part of the coal mine, the inner rod 306 is rotated when the motor two 312 is rotated through the cooperation of the worm 314 and the worm wheel 313, the shell 311 is fixedly installed at the top of the outer rod 305, the motor two 312 is fixedly installed at the right side of the shell 311, the worm wheel 313 is fixedly installed on the outer side of the upper end of the inner rod 306, and the worm 314 is fixedly installed at the output end of the motor two 312.

[0028] The adjusting mechanism comprises motor three 401, threaded rod 402 and motor four 403, the motor three 401 is fixedly installed at the top of the left stand column 1, the threaded rod 402 is fixedly installed at the output end of the motor three 401 and located inside the left stand column 1, the sliding block one 301 is internally provided with a threaded hole, the threaded rod 402 is threadedly connected to the inner side of the sliding block one 301, the output end of the motor four 403 is fixedly connected with the right rotating shaft 303, the threaded rod 402 is driven to rotate by the motor three 401, and the sliding block one 301 is threadedly connected, so that the sliding block one 301 drives the support plate 304 to move up and down, the depth of the outer rod 305 into the coal mine is adjusted, the right rotating shaft 303 is driven to rotate by the motor four 403, so that the support plate 304 drives the outer rod 305 to rotate, the angle of the outer rod 305 into the coal mine is adjusted, the flexibility of sampling is improved, and the motor four 403 is fixedly installed at the right side of the sliding block two 302.

[0029] The measuring mechanism comprises disc 501, fixed rod 502, pointer one 503, measuring scale 504 and pointer two 505, the disc 501 is fixedly installed at the left side of the sliding block two 302, the fixed rod 502 is fixedly installed at the right side of the support plate 304, the pointer one 503 is fixedly installed at the right end of the fixed rod 502, the measuring scale 504 is fixedly installed at the front of the left stand column 1, the left side surface of the disc 501 and the front of the measuring scale 504 are provided with scale grooves, the angle of the outer rod 305 into the coal mine is measured by cooperation of the disc 501 and the pointer one 503, the depth of the outer rod 305 into the coal mine is measured by cooperation of the measuring scale 504 and the pointer two 505, the disc 501 is internally provided with a through hole, and the right rotating shaft 303 penetrates through the through hole and is rotationally connected with the disc 501, so as to avoid interference of the disc 501 on the rotation of the rotating shaft 303, and the pointer two 505 is fixedly installed at the front of the sliding block one 301.

[0030] In use, when coal detection sampling is carried out, first, the device is moved to a suitable position such as a port or a coal storage site by pushing the device in cooperation with the universal wheels. When the freight train carrying coal passes between the left and right stand columns, the rotating shaft 303 is driven to rotate by the motor four 403 according to the stacking condition of the coal and the detection requirement. At this time, the operator observes the scale groove provided on the disc 501 and the pointer one 503, and accurately controls the support plate 304 to drive the outer rod 305 to rotate to a suitable angle by cooperation of the two, so that the outer rod can be inserted into the coal pile at the best angle to obtain a more representative sample.

[0031] Then the motor 307 is started to drive the main shaft 308 and the gear 309 to rotate. Since the gear 309 and the gear 310 are engaged with each other, the gear 310 drives the outer rod 305 to rotate. At the same time, the motor 401 is started to drive the threaded rod 402 to rotate. The threaded rod 402 is screwed with the threaded hole in the inner side of the sliding block 301, so that the sliding block 301 drives the gear 310 and the outer rod 305 to move downward. In this process, the operator measures the depth of the coal inserted by the outer rod 305 in real time by observing the pointer 505 and the scale groove of the scale 504, to ensure that the outer rod 305 is inserted to the depth meeting the detection requirements.

[0032] When the outer rod 305 reaches the appropriate depth, the motor 307 is turned off, and the motor 312 is started at this time. The motor 312 drives the worm 314 to rotate, and the worm 314 is engaged with the worm gear 313, so that the worm gear 313 drives the inner rod 306 to rotate. When the inner rod 306 rotates to the position where the sampling groove is opposite to the groove body, the surrounding coal enters the sampling groove along the groove body under the action of gravity and pressure, realizing simultaneous sampling of coal at different depths. This sampling method can effectively avoid errors caused by multiple sampling, ensure the representativeness of the sample, and provide high-quality samples for subsequent detection.

[0033] After sampling is completed, the motor 312 is continued to be started to rotate the inner rod 306, so that the sampling groove is offset from the groove body. In this way, when the outer rod 305 is withdrawn, the coal in the sampling groove can be prevented from being polluted by the outside. After the outer rod 305 is withdrawn, the inner rod 306 is rotated again to the position where the sampling groove is opposite to the groove body, and then the coal in the sampling groove is taken out. According to the standard sample preservation and transportation process, the sample is sent to a professional laboratory for detection of various indexes, such as calorific value detection, ash content detection, sulfur content detection, etc., to provide accurate data for coal quality evaluation.

[0034] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element.

[0035] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A longitudinal sampling device for coal testing, capable of simultaneous sampling at multiple points, comprising columns (1) and casters (2), wherein the casters (2) are fixedly installed at the bottom of two columns (1), characterized in that: A sampling device is provided between the two columns (1) on the left and right sides. The sampling device includes a sampling mechanism, an adjustment mechanism and a measuring mechanism. The sampling mechanism is located between the two columns (1) on the left and right, the adjustment mechanism is located on the top and side of the column (1), and the measuring mechanism is located on the front and side of the column (1). The sampling mechanism includes a slider 1 (301), a slider 2 (302), a rotating shaft (303), a support plate (304), an outer rod (305), an inner rod (306), a motor 1 (307), a drive shaft (308), a gear 1 (309), a gear 2 (310), a housing (311), a motor 2 (312), a worm gear (313), and a worm (314). The slider 1 (301) is slidably connected to the inside of the left column (1), and the slider 2 (302) is slidably connected to the inside of the right column (1). There are two rotating shafts (303) that are rotatably connected to the inside of the slider 1 (301) and the slider 2 (302). The support plate (304) is fixedly installed at one end of the two rotating shafts (303) adjacent to each other. The outer rod (305) is... 05) Rotatably connected to the inside of the support plate (304), the inner rod (306) is rotatably connected to the inside of the outer rod (305), the first motor (307) is fixedly installed on the bottom left side of the support plate (304), the drive shaft (308) is fixedly installed on the output end of the first motor (307), the first gear (309) is fixedly installed on the outer side of the upper end of the drive shaft (308), the second gear (310) is fixedly installed on the outer side of the upper end of the outer rod (305), the housing (311) is fixedly installed on the top of the outer rod (305), the second motor (312) is fixedly installed on the right side of the housing (311), the worm gear (313) is fixedly installed on the outer side of the upper end of the inner rod (306), and the worm (314) is fixedly installed on the output end of the second motor (312).

2. The longitudinal sampling device for coal testing capable of simultaneous multi-point sampling according to claim 1, characterized in that: The outer rod (305) has grooves that are evenly distributed on its surface, and the inner rod (306) has sampling grooves that are evenly distributed inside, with the sampling grooves being at the same height as the grooves.

3. The longitudinal sampling device for coal testing capable of simultaneous multi-point sampling according to claim 1, characterized in that: The bottom of the outer rod (305) is conical, the first gear (309) meshes with the second gear (310), and the worm (314) meshes with the worm wheel (313).

4. The longitudinal sampling device for coal testing capable of simultaneous multi-point sampling according to claim 1, characterized in that: The adjustment mechanism includes motor three (401), threaded rod (402) and motor four (403). Motor three (401) is fixedly installed on the top of the left column (1). Threaded rod (402) is fixedly installed at the output end of motor three (401) and located inside the left column (1). Motor four (403) is fixedly installed on the right side of slider two (302).

5. A longitudinal sampling device for coal testing capable of simultaneous multi-point sampling according to claim 4, characterized in that: The slider one (301) has a threaded hole inside, the threaded rod (402) is threadedly connected to the inside of the slider one (301), and the output end of the motor four (403) is fixedly connected to the right rotating shaft (303).

6. A longitudinal sampling device for coal testing capable of simultaneous multi-point sampling according to claim 1, characterized in that: The measuring mechanism includes a disc (501), a fixed rod (502), a pointer one (503), a measuring ruler (504), and a pointer two (505). The disc (501) is fixedly installed on the left side of the slider two (302), the fixed rod (502) is fixedly installed on the right side of the support plate (304), the pointer one (503) is fixedly installed on the right end of the fixed rod (502), the measuring ruler (504) is fixedly installed on the front of the left column (1), and the pointer two (505) is fixedly installed on the front of the slider one (301).

7. A longitudinal sampling device for coal testing capable of simultaneous multi-point sampling according to claim 6, characterized in that: The left side surface of the disc (501) and the front side of the measuring ruler (504) are provided with scale grooves.

8. A longitudinal sampling device for coal testing capable of simultaneous multi-point sampling according to claim 6, characterized in that: The disk (501) has a through hole inside, and the right-side rotating shaft (303) passes through the through hole and is rotatably connected to the disk (501).

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