Telescopic sampling device for coal geological exploration

Abstract

The invention provides a telescopic coal geological exploration sampling device, and relates to the technical field of geological sampling, the telescopic coal geological exploration sampling device comprises a sampling table, the top of the sampling table is fixedly connected with a U-shaped frame, the inner top of the U-shaped frame is fixedly provided with a first cylinder, the telescopic end of the first cylinder is fixedly connected with a sampling barrel, the sampling barrel penetrates through the sampling table, and the sampling barrel is in sliding fit with the sampling table. When any motor is started in the forward direction or the reverse direction, two sampling doors arranged on one side of each set of supporting plates are driven to be close to or away from each other, a plurality of sampling openings in the same side of the sampling barrel are opened and closed, the device can conveniently sample geology below a sampling table and on the same side of the sampling barrel, sampling of geology of different depths is achieved, and the sampling efficiency is improved. The obstruction between the opened sampling port and the geology is avoided; when the sampling opening is opened or closed, the structure of the sampling cavity is enlarged or reduced, and when the sampling opening is expanded, the volume of a geological sample taken by the sampling container in the device is increased.

Description

Technical Field

[0001] This invention relates to the field of geological sampling technology, specifically a telescopic coal geological exploration sampling device. Background Technology

[0002] Coal geological exploration involves determining coal seam conditions: accurately identifying the number, thickness, spatial location (strike, dip, angle), and stability of coal seams; determining the coal's industrial analysis (moisture, ash, volatile matter, fixed carbon), elemental analysis, calorific value, sulfur content, and harmful element content through sampling and testing, and evaluating its uses (e.g., thermal coal, coking coal, chemical coal); and identifying geological structures affecting mining (faults, folds), hydrogeological conditions (aquifers, water inflow), engineering geological conditions (roof and floor stability), gas content and outburst risk, and ground temperature. Based on the above information, coal resources and reserves are calculated by classification and grading.

[0003] Existing sampling devices, after drilling into the coal geology, use a deployable sampling container to obtain geological samples located outside the sampling tube. However, due to the hardness of the geology, it is difficult to deploy the sampling container outside the sampling tube, which is not conducive to geological sampling. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a telescopic coal geological exploration sampling device, which solves the problem that existing sampling devices are prone to difficulties in unfolding the sampling container to the outside of the sampling cylinder due to hard geology.

[0005] (II) Technical Solution To achieve the above objectives, the present invention is implemented through the following technical solution: a telescopic coal geological exploration sampling device, including a sampling platform, a U-shaped frame fixedly connected to the top of the sampling platform, a first cylinder fixedly installed inside the top of the U-shaped frame, a sampling cylinder fixedly connected to the telescopic end of the first cylinder, the sampling cylinder passing through the sampling platform, and the sampling cylinder and the sampling platform slidingly engaged.

[0006] The inner wall of the sampling cylinder is provided with several mounting brackets, each of which is fixedly mounted with a motor. The output end of each motor is fixedly connected to a drive rod, and the periphery of the drive rod is fixedly connected with several main bevel gears.

[0007] The mounting frame has several driven rods rotatably mounted on it. A driven bevel gear is fixedly connected to the peripheral side of each driven rod. The driven bevel gear meshes with the main bevel gear. A winding roller is fixedly connected to the peripheral side of each driven rod.

[0008] The mounting frame is also fixed with several sets of support plates, each set consisting of two support plates. An I-shaped plate is slidably fitted between the two support plates. Vertical plates are fixedly connected to the top and bottom of the two support plates, and a transmission roller is rotatably arranged between the two vertical plates.

[0009] The inner wall of the sampling cylinder has several sampling doors that slide vertically. An L-shaped plate is fixedly connected to each sampling door. An elastic spring is fixedly connected between the L-shaped plate and the mounting frame. A wire harness is provided between the L-shaped plate and the winding roller, and the wire harness passes through the surface of the transmission roller.

[0010] Preferably, the inner wall of the sampling cylinder is provided with several sets of limiting grooves, each set of limiting grooves having two grooves, and the two limiting grooves and the two sampling gates are in sliding fit.

[0011] The sampling cylinder has several sampling ports on its circumferential side, and the sampling ports are respectively located between two corresponding limiting grooves.

[0012] Preferably, each of the sampling gates has two limiting strips fixedly connected to it.

[0013] Each of the aforementioned limiting strips slides into its corresponding limiting groove.

[0014] Preferably, a plurality of U-shaped plates are fixedly connected to the mounting frame, the plurality of U-shaped plates are located between the sampling door and the I-shaped plate, and the outer walls of the plurality of U-shaped plates are fixedly connected to the ends of the elastic springs.

[0015] Preferably, the outer wall of the U-shaped plate and one side of the sampling door are in sliding fit, and the inner wall of the U-shaped plate and the inner wall of the I-shaped plate are in sliding fit.

[0016] Preferably, a number of horizontal strips are fixedly connected to the I-shaped plate.

[0017] Each of the support plates has two horizontal grooves on its side, and the horizontal strips slide in cooperation with the horizontal grooves respectively.

[0018] Preferably, each of the driven rods is fixedly connected to two traction gears, and the two traction gears are located at both ends of the winding roller.

[0019] The top and bottom of the I-shaped plate are fixedly connected to horizontal racks, which mesh with traction gears.

[0020] Preferably, the bottom of the sampling platform is provided with several rollers.

[0021] (III) Beneficial Effects This invention provides a telescopic coal geological exploration sampling device. It has the following beneficial effects: 1. In this invention, when any motor is started in the forward or reverse direction, it drives the two sampling doors set on one side of each set of support plates to move closer or further apart, thereby opening and closing several sampling ports on the same side of the sampling tube. This facilitates the sampling of the geology below the sampling platform and on the same side of the sampling tube by this device, enabling sampling of geology at different depths and avoiding obstruction between the open sampling port and the geology.

[0022] 2. In this invention, by enabling geological sampling from multiple sides and depths of the sampling tube, the number of samples is increased and the diversity of sampling results is improved.

[0023] 3. In this invention, by opening or closing the sampling port, the sampling cavity structure formed between the I-shaped plate and the two U-shaped plates on one side of the sampling port is enlarged or reduced. When the sampling port is enlarged, the volume of geological samples taken by the sampling container in this device is increased, which is beneficial to the detection of geological samples. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a telescopic coal geological exploration sampling device according to the present invention; Figure 2 for Figure 1 Enlarged diagram of A in the middle; Figure 3 A cross-sectional view of a telescopic coal geological exploration sampling device; Figure 4 for Figure 3 Enlarged diagram of B in the middle; Figure 5 for Figure 3 Enlarged diagram of C in the middle; Figure 6 This is a schematic diagram of the internal structure of the sampling cylinder; Figure 7 for Figure 6 An enlarged schematic diagram of D in the diagram.

[0025] The components include: 1. Sampling platform; 2. Sampling cylinder; 101. U-shaped frame; 102. First cylinder; 21. Mounting frame; 211. Motor; 2111. Driving rod; 2112. Main bevel gear; 212. Driven rod; 2121. Driven bevel gear; 2122. Winding roller; 2123. Traction gear; 213. Support plate; 2131. Vertical plate; 2132. Transmission roller; 2133. Horizontal groove; 214. U-shaped plate; 22. I-shaped plate; 221. Horizontal bar; 222. Horizontal rack; 23. Sampling gate; 231. L-shaped plate; 2311. Elastic spring; 2312. Wire harness; 232. Limiting bar; 24. Limiting groove; 25. Sampling port. Detailed Implementation

[0026] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments of this invention. Obviously, what is described is only a part of this invention, and not all of it. Based on this invention, all other innovations obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0027] Example 1: like Figures 1-7 As shown, this embodiment of the invention provides a telescopic coal geological exploration sampling device, including a sampling platform 1. A U-shaped frame 101 is fixedly connected to the top of the sampling platform 1. A first cylinder 102 is fixedly installed inside the top of the U-shaped frame 101. A sampling cylinder 2 is fixedly connected to the telescopic end of the first cylinder 102. The sampling cylinder 2 passes through the sampling platform 1, and the sampling cylinder 2 and the sampling platform 1 are slidably fitted. A plurality of mounting frames 21 are provided on the inner wall of the sampling cylinder 2. A motor 211 is fixedly installed on each of the mounting frames 21. An active rod 2111 is fixedly connected to the output end of the plurality of motors 211. A plurality of main bevel gears 2112 are fixedly connected to the circumferential side of the active rod 2111. A plurality of driven rods 212 are rotatably arranged on the mounting frames 21. A driven bevel gear 2121 is fixedly connected to the circumferential side of the driven rods 212. 121 meshes with the main bevel gear 2112, and a winding roller 2122 is fixedly connected to the circumferential side of the driven rod 212; several sets of support plates 213 are also fixed on the mounting frame 21, with two support plates 213 in each set, and an I-shaped plate 22 slidingly fitted between the two support plates 213. Vertical plates 2131 are fixedly connected to the top and bottom of the two support plates 213, and a transmission roller 2132 is rotatably arranged between the two vertical plates 2131; several sampling doors 23 are slidably fitted up and down on the inner wall of the sampling cylinder 2, and L-shaped plates 231 are fixedly connected to the several sampling doors 23. An elastic spring 2311 is fixedly connected between the L-shaped plate 231 and the mounting frame 21, and a wire harness 2312 is arranged between the L-shaped plate 231 and the winding roller 2122. The wire harness 2312 passes through the surface of the transmission roller 2132.

[0028] Specifically, the inner wall of the sampling cylinder 2 is provided with several sets of limiting grooves 24, with two limiting grooves 24 in each set. The two limiting grooves 24 and the two sampling gates 23 are in sliding engagement. The circumferential side of the sampling cylinder 2 is provided with several sampling ports 25, which are located between corresponding two limiting grooves 24. Two limiting strips 232 are fixedly connected to each of the sampling gates 23. The limiting strips 232 are in sliding engagement with the corresponding limiting grooves 24. Several U-shaped plates 214 are fixedly connected to the mounting bracket 21. The U-shaped plates 214 are located between the sampling gates 23 and the I-shaped plates 22. The outer walls of the U-shaped plates 214 are fixedly connected to the ends of the elastic springs 2311. The outer walls of the U-shaped plates 214 are in sliding engagement with one side of the sampling gates 23, and the inner walls of the U-shaped plates 214 are in sliding engagement with the inner walls of the I-shaped plates 22.

[0029] Furthermore, several horizontal bars 221 are fixedly connected to the I-shaped plate 22; two horizontal grooves 2133 are opened on the sides of several support plates 213, and the several horizontal bars 221 are slidably engaged with the several horizontal grooves 2133 respectively. Two traction gears 2123 are fixedly connected to several driven rods 212, and the two traction gears 2123 are located at both ends of the winding roller 2122 respectively; horizontal racks 222 are fixedly connected to the top and bottom of the I-shaped plate 22, and the horizontal racks 222 are meshed with the traction gears 2123. Several rollers are provided at the bottom of the sampling stage 1.

[0030] The operation process of this embodiment is as follows: When using the device of the present invention, after placing the sampling platform 1 of the device at the sampling position, the first cylinder 102 fixedly installed at the top of the U-shaped frame 101 is activated, so that the sampling cylinder 2 fixedly connected to the telescopic end of the first cylinder 102 passes through the sampling platform 1 and enters the soil at the bottom of the sampling platform 1. Then, one or more motors 211 are started in any forward or reverse direction. When the motor 211 is started, it drives the active rod 2111 fixedly connected to the output end of the motor 211, which drives the several main bevel gears 2112 fixedly connected to the circumferential side of the active rod 2111 to rotate. When the several main bevel gears 2112 rotate, they drive the driven bevel gear 2121, the driven rod 212 and the winding roller 2122 that mesh with the circumferential side of the main bevel gear 2112 to rotate. When the winding roller 2122 rotates, the wire bundle 2312 along the surface of the transmission roller 2132 is wound or unwound by the winding roller 2122. When the wire harness 2312 is wound by the winding roller 2122, the L-shaped plate 231 fixedly connected to the other end of the wire harness 2312 is pulled closer to the winding roller 2122 by the wire harness 2312. That is, the sampling gate 23 fixedly connected to the end of the L-shaped plate 231 moves closer to the winding roller 2122. The elastic spring 2311 fixedly connected between the L-shaped plate 231 and the U-shaped plate 214 is stretched, so that the two sampling gates 23 set on one side of each set of support plates 213 make vertical movements away from each other. The cooperation between the two limiting strips 232 fixedly connected to one side of the sampling gate 23 and the sampling groove 24, as well as the sliding cooperation between the other side of the sampling gate 23 and the U-shaped plate 214, prevents the sampling gate 23 from deflecting. When the wire harness 2312 is released by the winding roller 2122, the L-shaped plate 231 fixedly connected to the other end of the wire harness 2312 is pulled away from the winding roller 2122 by the wire harness 2312. That is, under the elastic force of the elastic spring 2311 fixedly connected between the L-shaped plate 231 and the U-shaped plate 214, the sampling gate 23 fixedly connected to the end of the L-shaped plate 231 is driven away from the winding roller 2122, so that the two sampling gates 23 set on one side of each set of support plates 213 make vertical movements that approach each other, so as to close several sampling ports 25 after sampling is completed. By activating any motor 211, the two sampling doors 23 on one side of each support plate 213 are moved closer or further apart, thus opening and closing several sampling ports 25 on the same side of the sampling cylinder 2. This facilitates the sampling of the geology below the sampling platform 1 and on the same side of the sampling cylinder 2, enabling sampling of geology at different depths and avoiding obstruction between the open sampling ports 25 and the geology. Specifically, when the outer wall of the sampling cylinder 2 is squeezed by the geology, the geological sample enters the sampling port 25. Furthermore, by activating multiple motors 211, sampling of geology at multiple sides and depths of the sampling cylinder 2 can be achieved, increasing the number of samples and improving the diversity of sampling results.

[0031] The first cylinder 102 used in this invention is a piston cylinder, specifically the SC model, and the motor 21 is a geared asynchronous motor.

[0032] The sliding fit of the I-shaped plate 22 within each set of support plates 213, through the sliding fit between the horizontal bar 221 and the horizontal groove 2133 on the side of the support plate 213, prevents the I-shaped plate 22 from deflecting. When the wire harness 2312 is wound or unwound by the winding roller 2122, i.e., when the sampling port 25 opens or closes, or when the driven rod 212 rotates in the opposite or forward direction, ... Figure 5 With the direction as the standard, the two traction gears 2123 fixedly connected to the side of the driven rod 212 start in the opposite or forward direction. Since the horizontal rack 222 fixedly connected to the bottom and top of the I-shaped plate 22 meshes with the corresponding two traction gears 2123, the horizontal rack 222 moves away from or closer to the sampling port 25. This causes the sampling cavity structure formed between the I-shaped plate 22 and the two U-shaped plates 214 on one side of the sampling port 25 to increase or decrease. This expands the volume of geological samples taken by the sampling container in this device when the sampling port 25 is opened, which is beneficial to the detection of geological samples.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A telescopic coal geological exploration sampling device, characterized in that: Includes a sampling platform (1), a U-shaped frame (101) is fixedly connected to the top of the sampling platform (1), a first cylinder (102) is fixedly installed inside the top of the U-shaped frame (101), a sampling tube (2) is fixedly connected to the telescopic end of the first cylinder (102), the sampling tube (2) passes through the sampling platform (1), and the sampling tube (2) and the sampling platform (1) are slidably engaged; The inner wall of the sampling tube (2) is provided with several mounting brackets (21), and a motor (211) is fixedly mounted on each of the mounting brackets (21). The output end of each of the motors (211) is fixedly connected to an active rod (2111), and several main bevel gears (2112) are fixedly connected to the periphery of the active rod (2111). The mounting bracket (21) is rotatably provided with a plurality of driven rods (212), and a driven bevel gear (2121) is fixedly connected to the peripheral side of the driven rod (212). The driven bevel gear (2121) and the main bevel gear (2112) mesh with each other. A winding roller (2122) is fixedly connected to the peripheral side of the driven rod (212). Several sets of support plates (213) are also fixed on the mounting frame (21). Each set of support plates (213) consists of two plates. An I-shaped plate (22) is slidably fitted between the two support plates (213). Vertical plates (2131) are fixedly connected to the top and bottom of the two support plates (213). A transmission roller (2132) is rotatably arranged between the two vertical plates (2131). The inner wall of the sampling cylinder (2) is fitted with several sampling gates (23) that slide up and down. An L-shaped plate (231) is fixedly connected to the sampling gates (23). An elastic spring (2311) is fixedly connected between the L-shaped plate (231) and the mounting bracket (21). A wire harness (2312) is provided between the L-shaped plate (231) and the winding roller (2122). The wire harness (2312) passes through the surface of the transmission roller (2132).

2. The telescopic coal geological exploration sampling device according to claim 1, characterized in that: The inner wall of the sampling tube (2) is provided with several sets of limiting grooves (24), and each set of limiting grooves (24) has two grooves. The two limiting grooves (24) and the two sampling gates (23) slide together. The sampling tube (2) has several sampling ports (25) on its circumferential side, and the several sampling ports (25) are respectively located between two corresponding limiting grooves (24).

3. The telescopic coal geological exploration sampling device according to claim 2, characterized in that: Each of the sampling gates (23) has two limiting strips (232) fixedly connected to it; Several of the aforementioned limiting strips (232) are respectively slidably engaged with the corresponding limiting grooves (24).

4. A telescopic coal geological exploration sampling device according to claim 3, characterized in that: A plurality of U-shaped plates (214) are fixedly connected to the mounting bracket (21). The plurality of U-shaped plates (214) are located between the sampling door (23) and the I-shaped plate (22). The outer wall of the plurality of U-shaped plates (214) is fixedly connected to the end of the elastic spring (2311).

5. A telescopic coal geological exploration sampling device according to claim 4, characterized in that: The outer wall of the U-shaped plate (214) and one side of the sampling door (23) are slidably fitted, and the inner wall of the U-shaped plate (214) and the inner wall of the I-shaped plate (22) are slidably fitted.

6. A telescopic coal geological exploration sampling device according to claim 5, characterized in that: Several horizontal strips (221) are fixedly connected to the I-shaped plate (22); Each of the support plates (213) has two horizontal grooves (2133) on its side, and the horizontal strips (221) slide in cooperation with the horizontal grooves (2133).

7. A telescopic coal geological exploration sampling device according to claim 6, characterized in that: Each of the driven rods (212) is fixedly connected to two traction gears (2123), and the two traction gears (2123) are located at both ends of the winding roller (2122); The top and bottom of the I-shaped plate (22) are fixedly connected with horizontal racks (222), and the horizontal racks (222) mesh with the traction gears (2123).

8. A telescopic coal geological exploration sampling device according to claim 1, characterized in that: The sampling stage (1) has several rollers at its bottom.

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