Continuous straw sampling device

Abstract

The invention provides a continuous straw sampling device. The continuous straw sampling device comprises a sampling drill bit, an outer cylinder front support, an outer cylinder, a spiral blade auger shaft, a second feeding chassis, a second feeding motor assembly, an outer cylinder rear support, an auger shaft motor assembly, a first feeding chassis, a first feeding motor assembly and an outer cylinder motor assembly. The sampling drill is mounted at the front end of the outer cylinder; the spiral blade auger shaft is installed in the outer cylinder, the outer cylinder is supported by an outer cylinder front support and an outer cylinder rear support, the outer cylinder rotates and moves front and back relative to the outer cylinder front support, the outer cylinder rotates relative to the outer cylinder rear support, and an outer cylinder motor assembly is installed on the outer cylinder rear support; the first feeding chassis is provided with an auger shaft motor assembly, and the outer cylinder motor assembly and the auger shaft motor assembly are controlled to enable the outer cylinder and the spiral blade auger shaft to rotate. The straw bale sampling device is deeply used for automatic sampling of straw bales, samples cover the surface layers of the straw bales to the centers of the straw bales, and the straw bale sampling device has the characteristics of automation, flexibility, adaptability and the like and meets continuous sampling of different types of straw bales with different characters.

Description

Technical Field

[0001] The invention belongs to the field of biomass application, and in particular relates to a straw continuous sampling device. Background Art

[0002] my country is actively and steadily promoting carbon peak and carbon neutrality, developing green, ecological and low-carbon industries, and comprehensively improving the comprehensive utilization of straw. Straw sampling is the basis for testing and quality assessment, and directly affects the recycling and utilization of straw. The current manual sampling used in this field has many industry pain points, such as low sampling efficiency, small sample size, insufficient sampling representativeness, and safety hazards in the sampling steps.

[0003] Chinese patent CN 117760772 A provides a straw sampling device, which uses a universal wheel structure to support the outer cylinder and the auger shaft. This structure has problems such as low reliability and poor matching accuracy. This is because the universal ball rubs against the inner wall of the outer cylinder during rotation, which easily causes structural wear and leads to a decrease in the mechanical performance of the device or failure. Summary of the invention

[0004] The purpose of the present invention is to provide a straw continuous sampling device to solve the problems of low sampling efficiency, small sampling sample amount, insufficient sampling representativeness, and potential safety hazards in the sampling steps in manual sampling.

[0005] A straw continuous sampling device comprises a sampling drill bit, an outer cylinder front bracket, an outer cylinder, a spiral blade auger shaft, a second feeding chassis, a second feeding motor assembly, an outer cylinder rear bracket, an auger shaft motor assembly, a first feeding chassis, a first feeding motor assembly and an outer cylinder motor assembly; the sampling drill bit is mounted on the front end of the outer cylinder; the spiral blade auger shaft is mounted inside the outer cylinder, the outer cylinder is supported by the outer cylinder front bracket and the outer cylinder rear bracket, the outer cylinder rotates and moves forward and backward relative to the outer cylinder front bracket, the outer cylinder rotates relative to the outer cylinder rear bracket, and the outer cylinder motor assembly is mounted on the outer cylinder rear bracket; the first feeding chassis is mounted with the auger shaft motor assembly, and the outer cylinder and the spiral blade auger shaft are rotated by controlling the outer cylinder motor assembly and the auger shaft motor assembly.

[0006] Furthermore, the outer cylinder front bracket is fixed on the second feed chassis, the outer cylinder rear bracket is fixed on the first feed chassis, the first feed chassis is connected to the second feed chassis through a sliding mechanism, the first feed chassis is moved forward and backward relative to the second feed chassis by controlling the first feed motor assembly, the second feed chassis is connected to the base through a sliding mechanism, and the first feed chassis and the second feed chassis are moved forward and backward relative to the base together by controlling the second feed motor assembly.

[0007] Furthermore, the sampling drill bit is provided with a serrated cutting head, the front end of the serrated cutting head has a serrated structure, a front spiral blade with a spiral shape is fixed on the inner wall, the serrated cutting head is rigidly connected to the outer cylinder through an outer cylinder connecting sleeve, a drill bit bearing is fixed between the serrated cutting head and the outer cylinder connecting sleeve, and the rotation of the outer cylinder drives the serrated cutting head to rotate.

[0008] Furthermore, the sampling drill bit is also provided with a rear spiral cutter head, which has a blade with a spiral structure. A ring structure is fixed on the outside of the spiral structure for connecting the drill bit bearing. A sheet-shaped axial blade is fixed at the front end of the rear spiral cutter head, and the rear end is rigidly connected to the spiral blade auger shaft. The spiral direction and spiral surface of the spiral blade of the rear spiral cutter head and the spiral blade of the spiral blade auger shaft are continuously and smoothly connected, and the rotation of the spiral blade auger shaft drives the rear spiral cutter head to rotate.

[0009] Furthermore, the rear spiral cutter head is connected to the outer cylinder connecting sleeve via a drill bit bearing, so that the rear spiral cutter head and the outer cylinder can rotate relative to each other.

[0010] Furthermore, the outer cylinder front bracket includes an adjusting bracket, a sleeve connecting flange and a sliding sleeve; the sliding sleeve is fixedly installed on the adjusting bracket through the sleeve connecting flange, and the adjusting bracket has the functions of height and horizontal adjustment, so that the sliding sleeve is coaxial with the rear bracket bearing, and the sliding sleeve supports the rotating outer cylinder to move forward and backward relative to the outer cylinder front bracket.

[0011] Furthermore, the outer cylinder rear bracket includes: an outer cylinder connecting flange, a rear bracket connecting cylinder, a thrust bearing, a rear bracket bearing, a gear, a gear box, an adjusting nut and a support bearing; the outer cylinder is rigidly connected to the rear bracket connecting cylinder through the outer cylinder connecting flange, and the rear bracket connecting cylinder is connected to the gear box through the thrust bearing and the support bearing, so that the outer cylinder can rotate relative to the gear box and bear the thrust load.

[0012] Furthermore, the gear inside the gear box is fixedly mounted on the rear bracket connecting cylinder and meshes with the outer cylinder motor assembly fixed outside the gear box, and the rear bracket connecting cylinder drives the outer cylinder to rotate by controlling the outer cylinder motor assembly.

[0013] Furthermore, the rear end of the gear box and the rear end of the spiral blade auger shaft are connected through a supporting bearing, and an adjusting nut at the connection is installed at the rear end of the spiral blade auger shaft, which can fine-tune and lock the relative position of the spiral blade auger shaft and the outer cylinder to reduce assembly errors.

[0014] Furthermore, the end of the spiral blade auger shaft is connected to the auger shaft motor assembly via a coupling, and the spiral blade auger shaft can be rotated relative to the gear box by controlling the auger shaft motor assembly.

[0015] The beneficial effects of the present invention are as follows: the present invention adopts stable and reliable bearing matching, which greatly increases the stability and reliability of the device operation, avoids the wear of the inner wall of the outer cylinder, and reduces the torque required for the rotation of the outer cylinder and the spiral blade auger shaft; the spiral blade auger shaft only produces a position matching relationship with the outer cylinder, which reduces unnecessary vibration, and at the same time increases the outer cylinder front bracket and the outer cylinder rear bracket to improve the stability of the device; adds two-stage feed displacement control, first uses the second feed motor assembly to make the device as a whole close to the straw bag, and then controls the first feed motor assembly to perform drilling, effectively ensuring the consistency of the drilling depth; adopts a split structure of the outer cylinder, the outer cylinder connecting flange and the rear bracket connecting cylinder, which effectively reduces the processing difficulty and processing cost; the sampling drill bit is optimized as a quick disassembly and assembly structure, which greatly reduces the difficulty of replacing wearing parts and improves maintainability.

[0016] The present invention can penetrate deeply into straw bales for automatic sampling, and the sampled samples can cover the surface to the center of the straw bale, and has the characteristics of automation, flexibility, and adaptability, and can meet the continuous sampling of straw bales of different types, different properties, and different specifications, and improves the current status of manual bagging, unpacking, and sampling, so that the samples have a certain objectivity, thereby significantly improving the efficiency and accuracy of biomass fuel detection and quality assessment, and providing strong support for the comprehensive utilization of biomass fuel resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the overall structure diagram of the present invention;

[0018] Figure 2 It is a partial view of the sampling drill bit and the front bracket of the outer cylinder of the present invention;

[0019] Figure 3 It is a partial view of the rear support of the outer cylinder of the present invention. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings.

[0021] like Figure 1-Figure 3 As shown, a straw continuous sampling device comprises a sampling drill bit 1, an outer cylinder front bracket 2, an outer cylinder 3, a spiral blade auger shaft 4, a second feeding chassis 6, a second feeding motor assembly 7, an outer cylinder rear bracket 8, an auger shaft motor assembly 9, a first feeding chassis 10, a first feeding motor assembly 11 and an outer cylinder motor assembly 12; the sampling drill bit 1 is installed at the front end of the outer cylinder 3; the spiral blade auger shaft 4 is installed inside the outer cylinder 3, the outer cylinder 3 is supported by the outer cylinder front bracket 2 and the outer cylinder rear bracket 8, the outer cylinder 3 rotates and moves forward and backward relative to the outer cylinder front bracket 2, the outer cylinder 3 rotates relative to the outer cylinder rear bracket 8, and the outer cylinder motor assembly 12 is installed on the outer cylinder rear bracket 8; the first feeding chassis 10 is installed with the auger shaft motor assembly 9, and the outer cylinder 3 and the spiral blade auger shaft 4 are rotated by controlling the outer cylinder motor assembly 12 and the auger shaft motor assembly 9.

[0022] The outer cylinder front bracket 2 is fixed on the second feed chassis 6, the outer cylinder rear bracket 8 is fixed on the first feed chassis 10, the first feed chassis 10 is connected to the second feed chassis 6 through a sliding mechanism, and the first feed motor assembly 11 is controlled to make the first feed chassis 10 move forward and backward relative to the second feed chassis 6, the second feed chassis 6 is connected to the base 5 through a sliding mechanism, and the second feed motor assembly 7 is controlled to make the first feed chassis 10 and the second feed chassis 6 move forward and backward relative to the base 5 together.

[0023] A serrated cutting head 13 is provided on the sampling drill bit 1. The front end of the serrated cutting head 13 has a serrated structure. A front spiral blade 15 with a spiral shape is fixed on the inner wall. The serrated cutting head 13 is rigidly connected to the outer cylinder 3 through an outer cylinder connecting sleeve 18. A drill bit bearing 17 is fixed between the serrated cutting head 13 and the outer cylinder connecting sleeve 18. The rotation of the outer cylinder 3 drives the serrated cutting head 13 to rotate.

[0024] The sampling drill bit 1 is also provided with a rear spiral cutter head 16, which has a blade with a spiral structure. A ring structure is fixed on the outside of the spiral structure for connecting the drill bit bearing 17. The front end of the rear spiral cutter head 16 is fixed with a sheet-shaped axial blade 14, and the rear end is rigidly connected to the spiral blade auger shaft 4. The spiral direction and spiral surface of the spiral blade of the rear spiral cutter head 16 and the spiral blade of the spiral blade auger shaft 4 are continuously and smoothly connected, and the rotation of the spiral blade auger shaft 4 drives the rear spiral cutter head 16 to rotate.

[0025] The rear spiral cutter head 16 is connected to the outer cylinder connecting sleeve 18 through the drill bit bearing 17, so that the rear spiral cutter head 16 and the outer cylinder 3 rotate relative to each other; the sampling head drill bit has the following functions: Function 1: the serrated cutting head 13 and the axial blade 14 rotate relative to each other, and have the function of cutting and breaking up the straw; Function 2: the front spiral blade 15 and the rear spiral cutter head 16 rotate relative to each other, and have the function of shearing and crushing the straw; Function 3: the outer cylinder 3 and the spiral blade auger shaft 4 rotate relative to each other, and have the function of conveying the straw.

[0026] The outer cylinder front bracket 2 includes an adjusting bracket 19, a sleeve connecting flange 20 and a sliding sleeve 21; the sliding sleeve 21 is fixedly installed on the adjusting bracket 19 through the sleeve connecting flange 20, and the adjusting bracket 19 has the functions of height and horizontal adjustment, so that the sliding sleeve 21 is coaxial with the rear bracket bearing 25, and the sliding sleeve 21 supports the rotating outer cylinder 3 to move forward and backward relative to the outer cylinder front bracket 2.

[0027] The outer cylinder rear bracket 8 includes: an outer cylinder connecting flange 22, a rear bracket connecting cylinder 23, a thrust bearing 24, a rear bracket bearing 25, a gear 26, a gear box 27, an adjusting nut 28 and a support bearing 29; the outer cylinder 3 is rigidly connected to the rear bracket connecting cylinder 23 through the outer cylinder connecting flange 2, and the rear bracket connecting cylinder 23 is connected to the gear box 27 through the thrust bearing 24 and the support bearing 29, so that the outer cylinder 3 can rotate relative to the gear box 27 and bear the thrust load.

[0028] The gear 26 inside the gear box 27 is fixedly mounted on the rear support connecting tube 23 and meshes with the outer cylinder motor assembly 12 fixed outside the gear box 27 . The outer cylinder motor assembly 12 is controlled to make the rear support connecting tube 23 drive the outer cylinder 3 to rotate.

[0029] The rear end of the gear box 27 and the rear end of the spiral blade auger shaft 4 are connected through a support bearing 29. The adjusting nut 28 at the connection is installed at the rear end of the spiral blade auger shaft 4, which can fine-tune and lock the relative position of the spiral blade auger shaft 4 and the outer cylinder 3 to reduce assembly errors.

[0030] The end of the spiral blade auger shaft 4 is connected to the auger shaft motor assembly 9 through a coupling, and the spiral blade auger shaft 4 can be rotated relative to the gear box 27 by controlling the auger shaft motor assembly 9.

[0031] The working process of the present invention is described in detail below:

[0032] When sampling a straw bale, after selecting a sampling point, control the outer cylinder motor assembly 12 and the auger shaft motor assembly 9 to make the outer cylinder 3 and the spiral blade auger shaft 4 reach a specified rotation speed; control the second feed motor assembly 7 to make the device as a whole approach the straw bale, and after reaching a specified distance, stop the second feed motor assembly 7, and control the first feed motor assembly 11 to make the sampling drill start to drill into the straw bale; when the sampling drill 1 drills in, the serrated cutting head 13 first cuts the straw, and the cut straw is scattered by the relative rotation of the serrated cutting head 13 and the axial blade, and then the front spiral blade 15 and the rear spiral blade 16 are used to cut the straw. The straw is sheared and crushed, and the sheared and crushed straw is then transported to the end of the outer cylinder 3 through the spiral blade auger shaft 4 for collection; when the sampling and drilling reaches the specified depth, the first feed motor assembly 11 is controlled to make the sampling device withdraw from the straw bag, and after the outer cylinder 3 and the drill bit are completely withdrawn from the straw bag, the first feed motor assembly 11 is stopped, and the second feed motor assembly 7 is controlled to return the sampling device to the initial position; after the remaining straw in the outer cylinder 3 is removed, the outer cylinder motor assembly 12 and the auger shaft motor assembly 9 are stopped, so that the outer cylinder 3 and the spiral blade auger shaft 4 stop rotating, and the straw sampling is completed.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A straw continuous sampling device, characterized in that: The invention comprises a sampling drill bit (1), an outer cylinder front bracket (2), an outer cylinder (3), a spiral blade auger shaft (4), a second feeding chassis (6), a second feeding motor assembly (7), an outer cylinder rear bracket (8), an auger shaft motor assembly (9), a first feeding chassis (10), a first feeding motor assembly (11) and an outer cylinder motor assembly (12); the sampling drill bit (1) is mounted at the front end of the outer cylinder (3); the spiral blade auger shaft (4) is mounted inside the outer cylinder (3); the outer cylinder (3) The outer cylinder (3) is supported by an outer cylinder front bracket (2) and an outer cylinder rear bracket (8), the outer cylinder (3) rotates and moves forward and backward relative to the outer cylinder front bracket (2), and the outer cylinder (3) rotates relative to the outer cylinder rear bracket (8), and an outer cylinder motor assembly (12) is installed on the outer cylinder rear bracket (8); the first feeding chassis (10) is installed with an auger shaft motor assembly (9), and the outer cylinder (3) and the spiral blade auger shaft (4) are rotated by controlling the outer cylinder motor assembly (12) and the auger shaft motor assembly (9).

2. A straw continuous sampling device according to claim 1, characterized in that: The outer cylinder front bracket (2) is fixed on the second feeding chassis (6), and the outer cylinder rear bracket (8) is fixed on the first feeding chassis (10). The first feeding chassis (10) is connected to the second feeding chassis (6) via a sliding mechanism. The first feeding chassis (10) is moved forward and backward relative to the second feeding chassis (6) by controlling the first feeding motor assembly (11). The second feeding chassis (6) is connected to the base (5) via a sliding mechanism. The first feeding chassis (10) and the second feeding chassis (6) are moved forward and backward relative to the base (5) by controlling the second feeding motor assembly (7).

3. A straw continuous sampling device according to claim 1, characterized in that: The sampling drill bit (1) is provided with a sawtooth cutting head (13), the front end of the sawtooth cutting head (13) has a sawtooth structure, and a front spiral blade (15) having a spiral shape is fixed on the inner wall. The sawtooth cutting head (13) is rigidly connected to the outer cylinder (3) through an outer cylinder connecting sleeve (18), and a drill bit bearing (17) is fixed between the sawtooth cutting head (13) and the outer cylinder connecting sleeve (18). The rotation of the outer cylinder (3) drives the sawtooth cutting head (13) to rotate.

4. A straw continuous sampling device according to claim 3, characterized in that: The sampling drill bit (1) is also provided with a rear spiral cutter head (16), which has a blade with a spiral structure. A ring structure is fixed on the outer side of the spiral structure and is used to connect the drill bit bearing (17). The front end of the rear spiral cutter head (16) is fixed with a sheet-shaped axial blade (14), and the rear end is rigidly connected to the spiral blade auger shaft (4). The spiral direction and spiral surface of the spiral blade of the rear spiral cutter head (16) and the spiral blade of the spiral blade auger shaft (4) are continuously and smoothly connected, and the rotation of the spiral blade auger shaft (4) drives the rear spiral cutter head (16) to rotate.

5. A straw continuous sampling device according to claim 4, characterized in that: The rear spiral cutter head (16) is connected to the outer cylinder connecting sleeve (18) via a drill bearing (17), so that the rear spiral cutter head (16) and the outer cylinder (3) can rotate relative to each other.

6. The straw continuous sampling device according to claim 1, characterized in that: The outer cylinder front bracket (2) comprises an adjustment bracket (19), a shaft sleeve connecting flange (20) and a sliding shaft sleeve (21); the sliding shaft sleeve (21) is fixedly mounted on the adjustment bracket (19) via the shaft sleeve connecting flange (20); the adjustment bracket (19) has the functions of height and horizontal adjustment, so that the sliding shaft sleeve (21) and the rear bracket bearing (25) are coaxial, and the sliding shaft sleeve (21) supports the rotating outer cylinder (3) to move forward and backward relative to the outer cylinder front bracket (2).

7. A straw continuous sampling device according to claim 6, characterized in that: The outer cylinder rear bracket (8) comprises: an outer cylinder connecting flange (22), a rear bracket connecting cylinder (23), a thrust bearing (24), a rear bracket bearing (25), a gear (26), a gear box (27), an adjusting nut (28) and a supporting bearing (29); the outer cylinder (3) is rigidly connected to the rear bracket connecting cylinder (23) via the outer cylinder connecting flange (22), and the rear bracket connecting cylinder (23) is connected to the gear box (27) via the thrust bearing (24) and the supporting bearing (29), so that the outer cylinder (3) can rotate relative to the gear box (27) and bear thrust load.

8. The straw continuous sampling device according to claim 7, characterized in that: The gear (26) inside the gear box (27) is fixedly mounted on the rear support connecting tube (23) and meshes with the outer cylinder motor assembly (12) fixed outside the gear box (27). By controlling the outer cylinder motor assembly (12), the rear support connecting tube (23) drives the outer cylinder (3) to rotate.

9. The straw continuous sampling device according to claim 8, characterized in that: The rear end of the gear box (27) and the rear end of the spiral blade auger shaft (4) are connected via a support bearing (29). An adjusting nut (28) at the connection is installed at the rear end of the spiral blade auger shaft (4) to fine-tune and lock the relative position of the spiral blade auger shaft (4) and the outer cylinder (3) to reduce assembly errors.

10. The straw continuous sampling device according to claim 9, characterized in that: The end of the spiral blade auger shaft (4) is connected to the auger shaft motor assembly (9) via a coupling, and the spiral blade auger shaft (4) can be rotated relative to the gear box (27) by controlling the auger shaft motor assembly (9).

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