Biomass fuel sampling device

Abstract

The utility model provides a biomass fuel sampling device which comprises the following components: a driving mechanism which comprises a driving shaft, a first transmission part and a second transmission part, the second transmission part comprises a first gear and a second gear which are engaged with each other, the driving shaft is respectively connected with the first transmission part and the first gear, and the first transmission part is located at one side of the first gear; the conveying mechanism comprises a hollow cylinder part and a conveying part arranged in the cylinder part, one end of the cylinder part is connected with the second gear, and one end of the conveying part is connected with the first transmission part; when the driving shaft is driven to rotate, the driving shaft drives the first transmission part and the first gear to rotate, the first transmission part drives the conveying part to rotate, the first gear drives the second gear to rotate reversely, and then the cylinder part is driven to rotate reversely. According to the utility model, the sampling working efficiency can be greatly improved, the labor cost is saved, and the working labor intensity is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying equipment, in particular to a biomass fuel sampling device. Background Art

[0002] In biomass power plants, fuels are mostly biofuels such as reed stalks, corn straws, rice straws, woods, and wood chips. The water content, ash content, volatile matter, particle size, density, uniformity, and impurities in these fuels will directly affect the power generation efficiency of biomass power plants. Fuel sampling is an important link in biofuel power generation.

[0003] Currently, fuel sampling in domestic biomass power plants is mainly carried out manually by samplers at fuel storage locations such as biomass yards and storage bins. However, since the fuel supply is in a compressed stacked and bundled structure, which is relatively compact, there are difficulties in manual sampling operations, high labor intensity, and poor working environments, resulting in low sampling efficiency.

[0004] Therefore, it is necessary to provide a biomass fuel sampling device to solve the above problems existing in the prior art. Summary of the Utility Model

[0005] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a biomass fuel sampling device to solve the problem of low working efficiency in the biomass fuel sampling link of the prior art.

[0006] To solve the above technical problems, the present utility model provides a biomass fuel sampling device, including:

[0007] A driving mechanism, including a driving shaft, a first transmission part, and a second transmission part. The second transmission part includes a first gear and a second gear that mesh with each other. The driving shaft is respectively connected to the first transmission part and the first gear, and the first transmission part is located on one side of the first gear;

[0008] A conveying mechanism, including a hollow cylindrical part and a conveying part arranged inside the cylindrical part. One end of the cylindrical part is connected to the second gear, and one end of the conveying part is connected to the first transmission part;

[0009] When the driving shaft is driven to rotate, the driving shaft drives the first transmission part and the first gear to rotate. The first transmission part drives the conveying part to rotate, and the first gear drives the second gear to rotate in the opposite direction, thereby driving the cylindrical part to rotate in the opposite direction.

[0010] Preferably, the first transmission part includes a connecting shaft, a first synchronous pulley, a second synchronous pulley and a synchronous belt. One end of the driving shaft is sleeved in the first synchronous pulley, and the synchronous belt is respectively sleeved outside the first synchronous pulley and the second synchronous pulley; one end of the connecting shaft is sleeved in the second synchronous pulley, and the other end of the connecting shaft is connected to one end of the conveying part.

[0011] Preferably, the conveying part includes a conveying shaft and a spiral blade fixedly connected to the conveying shaft. The conveying shaft is connected to the connecting shaft. When the connecting shaft is driven to rotate, the conveying shaft is driven to make a rotational motion, and the conveying shaft drives the spiral blade to make a rotational motion.

[0012] Preferably, the second transmission part further includes a transmission cylinder, which is respectively connected to the second gear and one end of the cylinder part. When the driving shaft rotates, the first transmission part and the first gear are driven to rotate. The first transmission part drives the conveying part to rotate. The first gear drives the second gear to rotate in the reverse direction, and the second gear drives the transmission cylinder to rotate in the reverse direction, thereby driving the cylinder part to rotate in the reverse direction.

[0013] Preferably, a crushing part is further included, and the crushing part is connected to the other end of the cylinder part.

[0014] Preferably, the cutting part is connected to the other end of the conveying part.

[0015] Preferably, a connecting part is further included. One end of the connecting part is connected to the other end of the conveying part, and the other end of the connecting part is connected to the cutting part.

[0016] Preferably, the cutting part is provided with a material passing groove for conveying biomass fuel.

[0017] Preferably, a first outer shell and a second outer shell are further included. The first outer shell and the second outer shell enclose a cavity for accommodating the driving mechanism.

[0018] Preferably, the second outer shell is provided with a discharge port for sending out biomass fuel.

[0019] As described above, the biomass fuel sampling device of the present invention has the following beneficial effects:

[0020] By designing the drive shaft, the first transmission part, the second transmission part of the drive mechanism, and the cylinder part and the conveying part of the conveying mechanism, when the drive shaft is driven to rotate, the drive shaft simultaneously drives the first transmission part and the first gear to perform rotational motion. Adopting the "side shaft" drive method, that is, the drive shaft serves as the "side shaft", which can make the designed structure more compact on the premise of realizing effective power transmission. At the same time, the first transmission part drives the conveying part to perform rotational motion, and the first gear drives the second gear to perform reverse rotational motion, thereby driving the cylinder part to perform reverse rotational motion. That is, with one drive shaft, the cylinder part and the conveying part perform rotational motions in opposite directions. The utility model utilizes the other end of the cylinder part to rotate and cut the biomass fuel, and utilizes the opposite rotational motions of the cylinder part and the conveying part to convey the shredded biomass fuel through the hollow cylinder part from its other end to one end, thereby completing the sampling of the biomass fuel, which can greatly improve the sampling work efficiency, save labor costs, and reduce the labor intensity of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It shows a schematic diagram of the biomass fuel sampling device of the present utility model;

[0022] Figure 2 It shows as Figure 1 the internal structure schematic diagram;

[0023] Figure 3 It shows as Figure 1 the sectional view along the A-A direction;

[0024] Figure 4 It shows a schematic diagram of the drive mechanism of the present utility model.

[0025] Description of component numbers:

[0026] 1. Drive mechanism; 11. Drive shaft; 12. First transmission part; 121. Connecting shaft; 122. First synchronous pulley; 123. Second synchronous pulley; 124. Synchronous belt; 13. Second transmission part; 131. First gear; 132. Second gear; 133. Transmission cylinder; 2. Conveying mechanism; 21. Cylinder part; 22. Conveying part; 221. Conveying shaft; 222. Spiral blade; 3. Crushing part; 4. Cutting part; 41. Feeding trough; 5. Connecting part; 6. First housing; 7. Second housing; 71. Discharge port; 8. Handle; 9. Grip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0028] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present utility model can be implemented. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that the present utility model can produce and the purpose that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is only limited by the claims of the published patent. The terms used here are only for describing specific embodiments and are not intended to limit this application. Spatially related terms, such as "upper", "lower", "left", "right", "below", "beneath", "lower part", "above", "upper part", etc., may be used in the text to facilitate the description of the relationship between one element or feature shown in the figure and another element or feature.

[0029] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", "held" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Furthermore, as used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of the described features, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or meaning any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B and C". An exception to this definition only occurs when the combination of elements, functions, or operations is inherently mutually exclusive in some way.

[0031] As Figures 1 - 4 shown, an embodiment of the present utility model provides a biomass fuel sampling device, including: a driving mechanism 1 and a conveying mechanism 2. The driving mechanism 1 is used to provide driving force for the conveying mechanism 2. The conveying mechanism 2 is used to convey the biomass fuel.

[0032] The driving mechanism 1 includes a driving shaft 11, a first transmission part 12 and a second transmission part 13. The second transmission part 13 includes a first gear 131 and a second gear 132 which are meshed with each other. The driving shaft 11 is respectively connected to the first transmission part 12 and the first gear 131, and the first transmission part 12 is located on one side of the first gear 131. The conveying mechanism 2 includes a hollow cylindrical part 21 and a conveying part 22 arranged inside the cylindrical part. One end of the cylindrical part 21 is connected to the second gear 132. One end of the conveying part 22 is connected to the first transmission part 12.

[0033] When the driving shaft 11 is driven to rotate, the driving shaft 11 drives the first transmission part 12 and the first gear 131 to rotate. The first transmission part 12 drives the conveying part 22 to rotate, and the first gear 131 drives the second gear 132 to rotate in the opposite direction, thereby driving the cylindrical part 21 to rotate in the opposite direction.

[0034] In the biomass fuel sampling device of the present utility model, by designing the driving shaft 11 to drive the first transmission part 12 and the first gear 131 to rotate in the same direction at the same time, the conveying part 22 is driven to rotate in the same direction through the first transmission part 12 respectively, and the second gear 132 is driven to rotate in the opposite direction through the first gear 131, so that the second gear 132 drives the cylindrical part 21 to rotate in the opposite direction, that is, the cylindrical part 21 and the conveying part 22 perform opposite rotational movements. At the same time, the other end of the cylindrical part 21 cuts the biomass fuel in a rotary cutting manner, which is convenient for conveying the biomass fuel from the other end of the cylindrical part 21 to one end thereof. This sampling method can convey the biomass fuel more efficiently and greatly save labor costs.

[0035] Specifically, the cylindrical part 21 serves as the main body and support, and is in the shape of a hollow cylinder. The length of the cylindrical part 21 is designed to be 700 mm, which is the maximum depth for material taking. Since the outer part of the piled material is affected by the external environment, its quality will be affected. Therefore, the design of the 700 mm length can accurately drill to the center position of the piled material, so as to obtain a sample with good quality. It should be noted that the length design of the cylindrical part 21 can be specifically designed according to the required depth of material taking.

[0036] It should be noted that the driving mechanism 1 further includes a motor. The motor is connected to the driving shaft 11 and drives the driving shaft 11 to rotate. Specifically, a high-torque driving motor is used to provide power for the driving shaft 11. For the specific motor installation method, please refer to the existing one, which will not be elaborated here.

[0037] Such as Figure 2As shown, in some embodiments of the present utility model, the first transmission part 12 includes a connecting shaft 121, a first synchronous pulley 122, a second synchronous pulley 123 and a synchronous belt 124. The driving shaft 11 is sleeved in the first synchronous pulley 122, and the synchronous belt 124 is respectively sleeved outside the first synchronous pulley 122 and the second synchronous pulley 123. One end of the connecting shaft 121 is sleeved in the second synchronous pulley 123, and the other end of the connecting shaft 121 is connected to one end of the conveying part 22. That is, when the driving shaft rotates, it drives the first synchronous pulley 122 to rotate. The first synchronous pulley 122 transmits its power to the second synchronous pulley 123 through the synchronous belt 124. The second synchronous pulley 123 drives the connecting shaft 121 to rotate, so that the connecting shaft 121 drives the conveying part 22 to rotate in the same direction. Exemplarily, the connecting shaft 121 and the conveying part 22 can be fixedly installed by bolts and nuts.

[0038] Exemplarily, the first synchronous pulley 122 is sleeved on one end of the driving shaft 11, and the first gear 131 is sleeved on the other end of the driving shaft 11. Such installation can effectively save the part cost of the driving shaft 11. There is no limitation on the specific positions of the first synchronous pulley 122 and the first gear 131 on the driving shaft 11, as long as their functions can be realized.

[0039] As Figure 2 shown, in some embodiments of the present utility model, the conveying part 22 includes a conveying shaft 221 and a spiral blade 222 fixedly connected to the conveying shaft. The conveying shaft 221 is connected to the connecting shaft 121. When the connecting shaft 121 is driven to rotate, it drives the conveying shaft 221 to make a rotational motion, and the conveying shaft 221 drives the spiral blade 222 to make a rotational motion. Thus, the spiral blade 222 conveys the cut biomass fuel in the cylinder part 21 from the other end of the cylinder part 21 to one end of the cylinder part 21 for the conveying of the biomass fuel.

[0040] As Figure 3 and Figure 4 shown, in some embodiments of the present utility model, the second transmission part 13 further includes a transmission cylinder 133. The transmission cylinder 133 is respectively connected to the second gear 132 and one end of the cylinder part 21. When the driving shaft 11 rotates, it drives the first transmission part 12 and the first gear 131 to rotate. The first transmission part 12 drives the conveying part 22 to rotate. The first gear 131 drives the second gear 132 to rotate in the opposite direction, and the second gear 132 drives the transmission cylinder 133 to rotate in the opposite direction, thereby driving the cylinder part 21 to rotate in the opposite direction. That is, through the design of driving the cylinder part 21 to rotate in the opposite direction by the transmission cylinder 133, the conveying part 22 and the cylinder part 21 are made to rotate in opposite directions, so as to convey the cut biomass fuel. Exemplarily, it can be fixedly connected into one body by circumferentially welding a circle at the intersecting end face of the transmission cylinder 133 and the cylinder part 21. Of course, the transmission cylinder 133 and the cylinder part 21 can also be designed as a split structure, and no specific limitation is made here.

[0041] When the drive shaft 11 rotates, it simultaneously drives the first synchronous pulley 122 and the first gear 131 to rotate in the same direction. The two power transmission paths are as follows: (1) The first synchronous pulley 122 transmits power to the second synchronous pulley 123 through the synchronous belt 124. The second synchronous pulley 123 drives the connecting shaft 121 to rotate in the same direction. The connecting shaft 121 drives the conveying shaft 221 to rotate in the same direction. The conveying shaft 221 drives the spiral blade 222 to rotate in the same direction; (2) The first gear 131 drives the second gear 132 meshing with it to rotate in the opposite direction. The second gear 132 drives the transmission cylinder 133 to rotate in the opposite direction. The transmission cylinder 133 drives the cylinder part 21 to rotate in the opposite direction. That is, only through one drive shaft, the spiral blade 222 and the cylinder part 21 perform rotational motions in opposite directions, thereby realizing the rotational cutting of biomass fuel at the other end of the cylinder part 21. And through the reverse rotation of the spiral blade 222 and the cylinder part 21, the shredded samples are conveyed, thus completing the sampling of biomass fuel.

[0042] As Figure 1 and Figure 3 shown, in some embodiments of the present invention, the biomass fuel sampling device further includes a crushing part 3. The crushing part 3 is connected to the other end of the cylinder part 21. When the cylinder part 21 is driven to rotate, it drives the crushing part 3 to rotate, thereby realizing the rotational cutting of biomass fuel. In this embodiment, the design of the crushing part 3 helps to better achieve the shredding of biomass fuel. Exemplarily, a threaded hole is provided at the other end of the cylinder part 21, so as to fixedly install the crushing part 3 at the other end of the cylinder part 21 for shredding biomass fuel.

[0043] As a tool for cutting biomass fuel, the crushing part 3 can specifically be in a cylindrical shape, and end face teeth are designed along its circumferential direction. The end face teeth have a plurality of sharp cutting teeth, which can withstand a large cutting force during cutting. During high-speed cutting, it can maintain a good cutting efficiency. During use, the cutting teeth are edge-ground to ensure sharpness and further improve the crushing quality. Since the cutting teeth are used for a long time, the tooth edges will be damaged or become dull. Therefore, the cutting teeth need to be frequently replaced as consumables. For easy replacement, a circle of threaded fixing holes is provided on the outer wall surface of the cutting teeth, so as to be fixedly installed with the cylinder part 21, for example, by means of screws.

[0044] As Figure 2 and Figure 3 shown, in some embodiments of the present invention, the biomass fuel sampling device further includes a cutting part 4. The cutting part 4 is connected to the other end of the conveying part 22. When the conveying part 22 is driven to rotate, it drives the cutting part 4 to rotate, thereby realizing the rotational cutting of biomass fuel. That is, through the design of the cutting part 4 and the crushing part 3, the biomass fuel can be effectively cut and crushed, avoiding the winding and rotation of relatively tough stems.

[0045] Specifically, the cutting part 4 can be a drill bit. For example, a drill bit with a stepped structure can be used, and the stepped teeth formed thereon can be used to cut and divide the piled forage cut out by the crushing part 3.

[0046] As Figure 3 shown, in some embodiments of the present utility model, the biomass fuel sampling device further includes a connecting part 5. One end of the connecting part 5 is connected to the other end of the conveying part 22, and the other end of the connecting part 5 is connected to the cutting part 4. Exemplarily, one end of the connecting part 5 and the other end of the conveying part 22 can be fixedly installed by bolts and nuts. By designing the connecting part 5, it is convenient to assemble the conveying shaft 221 of the conveying part 22 and the cutting part 4, and improve the adaptability of the assembly.

[0047] As Figure 2 shown, in some embodiments of the present utility model, the cutting part 4 is provided with a material passing groove 41 for conveying biomass fuel. That is, by providing the material passing groove 41 on the cutting part, the shredded biomass fuel can be timely conveyed through the material passing groove 41.

[0048] As Figure 1 shown, in some embodiments of the present utility model, the biomass fuel sampling device further includes a first outer shell 6 and a second outer shell 7. The first outer shell 6 and the second outer shell 7 enclose a cavity for accommodating the driving mechanism 1. For example, through holes are provided on both sides of the first outer shell 6 and are connected and fixed to the second outer shell 7 by bolts and nuts.

[0049] As Figure 1 and Figure 3 shown, in some embodiments of the present utility model, the second outer shell 7 is provided with a discharge port 71 for discharging biomass fuel. That is, the shredded biomass fuel is conveyed to the cavity through the transmission of the cylinder part 21 and the conveying part 22, and then output through the discharge port 71. Exemplarily, a groove is provided on the outer wall of the bottom end of the discharge port 71 for installing and replacing a storage bag.

[0050] As Figure 1 shown, in some embodiments of the present utility model, the biomass fuel sampling device further includes a handle 8. One end of the handle 8 is arranged on the first outer shell 6, and the other end is arranged on the second outer shell 7. An anti-slip sleeve is installed on the outer wall of the handle 8.

[0051] In some embodiments of the present utility model, the biomass fuel sampling device further includes a through-hole end cover, a bearing gland, a gear cover, and a bearing sleeve. The driving shaft 11 can be fixedly supported, for example, by using bearings for installation and fixation. The through-hole end cover is installed by screws to fix the bearing. Exemplarily, the second housing 7 and the bearing gland are fixedly installed by screws. For example, the gear cover is installed on one side of both the first housing 6 and the second housing 7 by screws, thereby forming a sealed space. The bearing sleeve is arranged outside the cylindrical portion 21. For example, a pair of nested bearings arranged inside the bearing sleeve are sleeved on the cylindrical portion 21, and the inner ring of the bearing is fixed to the C-shaped snap ring through a collar. One outer wall of the bearing sleeve is fixedly installed with a front pressing cover by screws, thereby achieving fixed support. No specific limitation is imposed on the specific form of the outer cover setting, and only examples are given here.

[0052] As Figure 1 shown, in some embodiments of the present utility model, the biomass fuel sampling device further includes a grip 9. Fixed blocks are installed on the front pressing cover and the bearing sleeve, and the fixed blocks are screwed into the grip 9. Through the handle 8 and the grip 9, it is convenient for the user to operate.

[0053] It should be noted that the biomass fuel sampling device provided by the present utility model is mainly used for automatically sampling common fuels in biomass power plants, such as reed stalks, corn straws, rice straws, etc. Of course, the present utility model can also be used for sampling similar materials, thereby improving the sampling efficiency.

[0054] In summary, in view of the actual working conditions and requirements of fuel sampling in biomass power plants, the present utility model designs a crushing part at the front end of the biomass fuel sampling device and drives it to rotate by the cylindrical portion, so as to realize the crushing of biomass fuel by means of rotary cutting, and then cut and divide by the cutting part. By designing the cylindrical portion and the conveying portion to rotate in opposite directions, not only can the cut and divided samples be conveyed from the other end of the cylindrical portion to one end thereof until the discharge port, but also the sampling efficiency can be greatly improved, thereby conveying the samples, ensuring that the water content, ash content, volatile content, particle size, and uniformity in the biomass fuel will not have large numerical deviations due to external interference, which provides great help for the quality of the samples; at the same time, the present utility model does not require manual sampling by staff, saves labor costs, reduces the labor intensity of manual operations, improves the sampling work efficiency, and realizes the demonstration application of automatic fuel sampling in biomass power plants. Therefore, the present utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0055] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not intended to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A biomass fuel sampling device, characterized in that, Comprising: A driving mechanism (1), including a driving shaft (11), a first transmission part (12) and a second transmission part (13), the second transmission part (13) includes a first gear (131) and a second gear (132) that mesh with each other, the driving shaft (11) is respectively connected to the first transmission part (12) and the first gear (131), and the first transmission part (12) is located on one side of the first gear (131); A conveying mechanism (2), including a hollow cylindrical part (21) and a conveying part (22) arranged inside the cylindrical part (21), one end of the cylindrical part (21) is connected to the second gear (132), and one end of the conveying part (22) is connected to the first transmission part (12); When the driving shaft (11) is driven to rotate, the driving shaft (11) drives the first transmission part (12) and the first gear (131) to rotate, the first transmission part (12) drives the conveying part (22) to rotate, the first gear (131) drives the second gear (132) to rotate in the opposite direction, and further drives the cylindrical part (21) to rotate in the opposite direction.

2. The biomass fuel sampling device according to claim 1, wherein The first transmission part (12) includes a connecting shaft (121), a first synchronous pulley (122), a second synchronous pulley (123) and a synchronous belt (124), one end of the driving shaft (11) is sleeved in the first synchronous pulley (122), and the synchronous belt (124) is respectively sleeved outside the first synchronous pulley (122) and the second synchronous pulley (123); one end of the connecting shaft (121) is sleeved in the second synchronous pulley (123), and the other end of the connecting shaft (121) is connected to one end of the conveying part (22).

3. The biomass fuel sampling device according to claim 2, wherein The conveying part (22) includes a conveying shaft (221) and a spiral blade (222) fixedly connected to the conveying shaft (221), the conveying shaft (221) is connected to the connecting shaft (121), when the connecting shaft (121) is driven to rotate, it drives the conveying shaft (221) to perform a rotational motion, and the conveying shaft (221) drives the spiral blade (222) to perform a rotational motion.

4. The biomass fuel sampling device according to claim 1, wherein The second transmission part (13) further includes a transmission cylinder (133), the transmission cylinder (133) is respectively connected to the second gear (132) and one end of the cylindrical part (21), when the driving shaft (11) rotates, it drives the first transmission part (12) and the first gear (131) to rotate, the first transmission part (12) drives the conveying part (22) to rotate, the first gear (131) drives the second gear (132) to rotate in the opposite direction, the second gear (132) drives the transmission cylinder (133) to rotate in the opposite direction, and further drives the cylindrical part (21) to rotate in the opposite direction.

5. The biomass fuel sampling device according to claim 1, wherein It further includes a crushing part (3), and the crushing part (3) is connected to the other end of the cylindrical part (21).

6. The biomass fuel sampling device according to claim 1, wherein It further includes a cutting part (4), and the cutting part (4) is connected to the other end of the conveying part (22).

7. The biomass fuel sampling device according to claim 6, wherein, It further includes a connecting part (5), one end of the connecting part (5) is connected to the other end of the conveying part (22), and the other end of the connecting part (5) is connected to the cutting part (4).

8. The biomass fuel sampling device according to claim 6, wherein The cutting part (4) is provided with a material passing groove (41) for conveying biomass fuel.

9. The biomass fuel sampling device according to claim 1, wherein It further includes a first outer shell (6) and a second outer shell (7), the first outer shell (6) and the second outer shell (7) enclose a cavity for accommodating the driving mechanism (1).

10. The biomass fuel sampling device according to claim 9, characterized in that, The second outer shell (7) is provided with a discharge port (71) for discharging biomass fuel.

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