Straw biomass pellet fuel preparation equipment

Abstract

The invention relates to the technical field of biomass particle fuel preparation, in particular to straw biomass particle fuel preparation equipment which comprises a conveying pipe, a caliber adjusting mechanism, a particle length adjusting mechanism and a particle size adjusting mechanism and further comprises an outer side mounting seat fixedly mounted at one end of the conveying pipe and a synchronous belt wheel set rotationally mounted on one side of the mounting seat. A servo steering engine is fixedly mounted at the top of the mounting base, a driving bevel gear is fixedly mounted at the output end of the servo steering engine, and a transmission assembly extending to the bottom is rotationally mounted at the bottom of the mounting base. A servo steering engine drives a driving bevel gear to adjust different particle sizes of a particle size adjusting mechanism, and meanwhile, a bevel gear ring in the particle size adjusting mechanism drives a particle length adjusting mechanism and a caliber adjusting mechanism to work cooperatively through a transmission assembly, so that the length of straw particles is controlled in a coordinated mode; therefore, the prepared straw biomass particles are ensured to reach ideal particle shapes, and synchronous adjustment of particle sizes and particle lengths in the preparation process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of biomass pellet fuel preparation, in particular to a straw biomass pellet fuel preparation device. Background Art

[0002] With the continuous growth of global energy demand, it has become an important task to replace traditional fossil fuels with renewable resources. In recent years, the utilization of biomass energy from agricultural waste such as straw has gradually attracted attention. Biomass pellet fuel prepared from straw, as a clean and renewable energy source, has shown significant advantages in environmental protection and economic benefits. Biomass pellet fuel has broad application prospects in industrial boilers, household heating and small and medium-sized power generation, which helps to reduce pollutant emissions and improve the ecological environment.

[0003] A straw biomass pellet fuel preparation device with announcement number CN112480988B has solved the technical disadvantages of low degree of straw crushing, which makes it difficult to extrude and form, and directly extruding the crushed straw from the forming hole during extrusion molding, resulting in insufficient molding pressure, which makes the biomass pellets easy to loosen after molding. However, in actual use, similar structures still have many defects. For example, in the preparation process of biomass pellet fuel, the control of particle size and particle length directly affects the quality and subsequent use performance of the particles. When the particle size of the straw biomass particles is adjusted, the particle length cannot be automatically adjusted synchronously, which not only affects the molding rate of the particles, but also makes it difficult to achieve the ideal particle shape, thereby affecting the stability of the final product quality and the use performance. Therefore, there is an urgent need for a straw biomass pellet fuel preparation device that can coordinately control the particle size and particle length, improve production efficiency and product quality, and meet the needs of diversified application scenarios. It is of great significance. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: the particle length cannot be adjusted automatically and synchronously when the particle size of the straw biomass particles is adjusted, which not only affects the particle forming rate, but also makes it difficult to achieve the ideal particle shape, thereby affecting the stability of the final product quality.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A straw biomass pellet fuel preparation device comprises a feed pipe, a caliber adjustment mechanism, a particle length adjustment mechanism and a particle diameter adjustment mechanism, and also comprises an outer mounting seat fixedly mounted on one end of the feed pipe, and a synchronous pulley group rotatably mounted on one side of the mounting seat;

[0007] A servo steering gear is fixedly installed on the top of the mounting seat, an active bevel gear is fixedly installed on the output end of the servo steering gear, a transmission assembly extending to the bottom is rotatably installed on the bottom of the mounting seat, and the particle size adjustment mechanism is rotatably installed on one end of the feed pipe, and the particle size adjustment mechanism consists of a tapered tube, three sets of die hole plates and a tapered gear ring;

[0008] The grain length adjustment mechanism is fixedly mounted on the bottom of the mounting seat, and the grain length adjustment mechanism is transmission-connected with the synchronous pulley set, the caliber adjustment mechanism is fixedly mounted on the feeding port at the bottom of the mounting seat, and the transmission assembly is transmission-connected with the grain length adjustment mechanism and the caliber adjustment mechanism respectively;

[0009] The servo steering engine drives the conical tube to rotate through the active bevel gear and the bevel gear ring. The rotating conical tube adjusts the position of the three sets of die hole plates to achieve the purpose of automatically adjusting the particle size. While adjusting the particle size, the bevel gear ring drives the particle length adjustment mechanism and the caliber adjustment mechanism through the transmission component at the same time, so that the particle length adjustment mechanism controls the cutting speed by adjusting the cutting stroke length, thereby achieving the purpose of adjusting the particle length; and the driven caliber adjustment mechanism can coordinately adjust the specifications of the feed port according to the adjustment of the particle size and particle length, so as to adjust the feed distance of the cutter according to the cutting stroke length to adjust the cutting length of the straw biomass particles.

[0010] Preferably, three sets of die hole plates are equidistantly embedded and installed on the inner wall of the conical tube, and through holes of different apertures are opened inside the three sets of die hole plates. A bevel gear ring is fixedly installed on the outer side of one end of the conical tube, and the bevel gear ring extends to the interior of the mounting seat and is meshed with the active bevel gear.

[0011] Preferably, the grain length adjustment mechanism consists of two groups of shaft hangers, a bidirectional screw rod, two groups of reciprocating screw rods and a cutting tool, wherein the two groups of bidirectional screw rods are fixedly mounted on the bottom of the mounting seat through the shaft hangers, two groups of transmission bevel gears are fixedly mounted on one end of the two groups of bidirectional screw rods, the outer sides of the two-way screw rods are sleeved with limiting screw sleeves, and the top of the limiting screw sleeves is movably sleeved on the outer sides of the reciprocating screw rods; the two groups of reciprocating screw rods are rotatably mounted on both sides of the shaft hangers, and two reciprocating screw sleeves are respectively sleeved on the outer sides of the two groups of reciprocating screw rods, the cutting tool is fixedly mounted between the two reciprocating screw sleeves, and the bottoms of the two reciprocating screw sleeves are movably sleeved on the outer sides of the two-way screw rods.

[0012] Preferably, the aperture adjustment mechanism consists of a slide plate, an aperture adjustment assembly and a driven gear, wherein the slide plate is fixedly mounted on the discharge port at the bottom of the mounting seat, the bottom of the slide plate is rotatably mounted with the aperture adjustment assembly, and the driven gear is fixedly mounted on the bottom of the aperture adjustment assembly, wherein the aperture adjustment assembly consists of an inner gear ring, four transmission gears and four movable rack plates, the four transmission gears are equidistantly rotatably mounted on the inner side of the inner gear ring, and the four transmission gears are meshed and connected with the inner side of the inner gear ring, the four movable rack plates constitute a movable mouth adjustment assembly, and the four movable rack plates are respectively meshed and connected with the four transmission gears; the transmission assembly rotates on the inner gear ring through the driven gear, and the rotating inner gear ring drives the four meshed movable rack plates to move synchronously through the four transmission gears, thereby adjusting the discharge port of the movable mouth adjustment assembly.

[0013] Preferably, the transmission assembly consists of a linkage bevel gear, two groups of first double-headed bevel gear rods and two groups of second double-headed bevel gear rods, wherein the linkage bevel gear is meshingly connected with the bottom of the bevel gear ring, a linkage gear is fixedly installed on the bottom of the linkage bevel gear, the linkage gear is meshingly connected with the driven gear, one end of the two groups of first double-headed bevel gear rods are meshingly connected with the linkage bevel gear, the other ends of the two groups of first double-headed bevel gear rods are respectively meshingly connected with two groups of second double-headed bevel gear rods, and the bottom ends of the two groups of second double-headed bevel gear rods are respectively meshingly connected with the two groups of transmission bevel gears.

[0014] Preferably, a driving motor is fixedly installed on the other end of the feed pipe, a spiral conveying rod is rotatably installed inside the feed pipe, and one end of the spiral conveying rod extends to the interior of the particle size adjustment mechanism, the output end of the driving motor is fixedly connected to one end of the spiral conveying rod, and a pin hole is provided at the other end of the spiral conveying rod, and a feed hopper is fixedly installed on one side of the top of the feed pipe.

[0015] Preferably, the synchronous pulley group consists of two synchronous pulleys and a latch rod, wherein one end of the latch rod is coaxially connected to the two synchronous pulleys, and the output ends of the two sets of synchronous pulleys are respectively connected to one end of the two sets of reciprocating screws.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention drives the active bevel gear through the servo steering engine to adjust the particle size adjustment mechanism to different particle sizes, and at the same time utilizes the bevel gear ring in the particle size adjustment mechanism to drive the particle length adjustment mechanism and the caliber adjustment mechanism to work together through the transmission component, so as to achieve the coordinated control of the particle size and particle length of the straw biomass particles, solve the problem that the particle size and particle length cannot be adjusted synchronously and automatically, ensure the synchronous adjustment of the particle size and particle length of the straw raw material during the preparation process, so as to ensure that the prepared straw biomass particles have an ideal particle shape, and improve the quality and subsequent use performance of the straw biomass particles; the coordinated adjustment of the particle size and particle length is specifically achieved by energizing the servo steering engine to drive the active bevel gear The rotating active bevel gear cooperates with the meshing bevel gear ring to accurately control the rotation angle of the conical tube, thereby accurately adjusting the position of the three sets of die hole plates, and changing the aperture of the through holes of the three sets of die hole plates to change the particle size of the straw biomass particles to achieve different particle size adjustments; the particle length adjustment mechanism is linked with the bevel gear ring through the transmission component to adjust the cutting stroke length, thereby controlling the cutting speed to adjust the length of the cut straw biomass particles to meet the needs of different lengths; the caliber adjustment mechanism is also linked with the bevel gear ring through the transmission component, and can control the feeding caliber range according to the adjustment of the particle size adjustment mechanism, and then adjust the feed distance of the cutter to adjust the cutting length of the straw biomass particles. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of the internal structure of the material conveying pipe of the present invention;

[0019] Figure 3 It is a schematic diagram of the unfolded structure of the spiral conveying rod and the synchronous belt pulley assembly of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the particle size adjustment mechanism of the present invention;

[0021] Figure 5 It is a schematic diagram of the transmission assembly structure of the present invention;

[0022] Figure 6 It is a schematic structural diagram of the material unloading mechanism of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the grain length regulating mechanism of the present invention;

[0024] Figure 8 It is a schematic diagram of the expanded structure of the caliber adjustment mechanism of the present invention.

[0025] In the figure: 1. feeding pipe; 101. feeding hopper; 102. driving motor; 103. screw conveying rod; 2. mounting seat; 201. servo steering engine; 202. transmission assembly; 2021. linkage bevel gear; 2022. linkage gear; 2023. first double-headed bevel gear rod; 2024. second double-headed bevel gear rod; 203. driving bevel gear; 3. caliber adjustment mechanism; 301. slide rail plate; 302. caliber adjustment assembly; 30 21. Internal gear ring; 3022. Transmission gear; 3023. Moving rack plate; 303. Driven gear; 4. Grain length adjustment mechanism; 401. Shaft hanger; 402. Bidirectional screw rod; 403. Transmission bevel gear; 404. Limiting thread sleeve; 405. Reciprocating screw rod; 406. Reciprocating thread sleeve; 407. Cutting tool; 5. Synchronous pulley set; 6. Grain size adjustment mechanism; 601. Conical tube; 602. Die hole plate; 603. Conical gear ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figures 1 to 8The straw biomass pellet fuel preparation device proposed in the present invention comprises a feed pipe 1, a caliber adjustment mechanism 3, a particle length adjustment mechanism 4 and a particle size adjustment mechanism 6, and also comprises an outer mounting seat 2 fixedly mounted on one end of the feed pipe 1, and a synchronous pulley group 5 rotatably mounted on one side of the mounting seat 2;

[0030] A servo steering engine 201 is fixedly installed on the top of the mounting seat 2, and an active bevel gear 203 is fixedly installed on the output end of the servo steering engine 201. A transmission assembly 202 extending to the bottom is rotatably installed on the bottom of the mounting seat 2. A particle size adjustment mechanism 6 is rotatably installed on one end of the feed pipe 1. The particle size adjustment mechanism 6 is composed of a tapered tube 601, three sets of die hole plates 602 and a tapered gear ring 603.

[0031] The grain length adjustment mechanism 4 is fixedly mounted on the bottom of the mounting seat 2, and the grain length adjustment mechanism 4 is in transmission connection with the synchronous pulley set 5, the caliber adjustment mechanism 3 is fixedly mounted on the unloading port at the bottom of the mounting seat 2, and the transmission assembly 202 is respectively in transmission connection with the grain length adjustment mechanism 4 and the caliber adjustment mechanism 3;

[0032] The servo steering engine 201 drives the conical tube 601 to rotate through the active bevel gear 203 and the bevel gear ring 603. The rotating conical tube 601 adjusts the position of the three sets of die hole plates 602 to achieve the purpose of automatically adjusting the particle size. While adjusting the particle size, the bevel gear ring 603 drives the particle length adjustment mechanism 4 and the caliber adjustment mechanism 3 through the transmission component 202 at the same time, so that the particle length adjustment mechanism 4 controls the cutting speed by adjusting the cutting stroke length, thereby achieving the purpose of adjusting the particle length; and the driven caliber adjustment mechanism 3 can coordinately adjust the specifications of the feed port according to the adjustment of the particle size and particle length, so as to adjust the feed distance of the cutter according to the cutting stroke length, so as to adjust the cutting length of the straw biomass particles;

[0033] It should be noted that the servo actuator 201 in the present invention is integrated with existing mature technologies, and its specific structure is not the innovation of the present invention, so it is not shown in the drawings of the present invention. The protection scope of the present invention is only for the protection-related structural features clearly defined in the claims; the servo actuator 201 is a driving device of a closed-loop control system, and its core function is to accurately control the angle or position of the output shaft and realize dynamic adjustment of the target position through a feedback mechanism; therefore, in the present invention, the servo actuator 201 accurately controls the rotation angle of the tapered tube 601 through the active bevel gear 203 and the meshing bevel gear ring 603, so that the rotating tapered tube 601 accurately controls the position conversion of the three sets of die hole plates 602, and the three sets of die hole plates 602 with through holes of different apertures are adjusted. 02 position, to achieve automatic adjustment of particle size; at the same time, the servo steering engine 201 links the particle length adjustment mechanism 4 and the caliber adjustment mechanism 3 through the transmission component 202 to make them work together, wherein the particle length adjustment mechanism 4 controls the cutting speed by adjusting the cutting stroke length, and adjusts the particle length by controlling the cutting speed, so as to meet the needs of different particle lengths; and the linkage of the caliber adjustment mechanism 3 can control the range of the feeding caliber according to the adjustment of the particle size adjustment mechanism 6, so as to adjust the feeding distance of the cutter of the particle length adjustment mechanism 4, and adjust the length of the straw biomass particles by adjusting the feeding distance of the cutter; the particle length adjustment mechanism 4 and the caliber adjustment mechanism 3 work together with the particle size adjustment mechanism 6 to ensure the coordinated control of the particle size and particle length of the straw raw material during the preparation process.

[0034] like Figure 2 , Figure 4 As shown, three sets of die hole plates 602 are equidistantly embedded in the inner wall of the tapered tube 601, and through holes of different apertures are opened inside the three sets of die hole plates 602. A bevel gear ring 603 is fixedly installed on the outer side of one end of the tapered tube 601, and the bevel gear ring 603 extends to the inside of the mounting seat 2 and is meshed with the active bevel gear 203.

[0035] It should be noted that the bevel gear ring 603 is rotatably connected to one end of the feed pipe 1 extending to the mounting seat 2 to ensure that the bevel gear ring 603 rotates stably; and in the process of preparing the straw biomass particles, according to the specifications of the straw biomass particles, the servo steering engine 201 drives the active bevel gear 203 to cooperate with the meshing bevel gear ring 603 to accurately control the rotation of the conical tube 601, and the corresponding specification of the die hole plate 602 is adjusted to the discharge port position at the bottom of the mounting seat 2. When the straw biomass raw material is squeezed through the die hole plate 602 located at the discharge port of the mounting seat 2, the through holes opened in the die hole plate 602 squeeze the straw biomass raw material into long strips, and the outlet diameter adjustment mechanism 3 is extended through the discharge port at the bottom of the mounting seat 2, and the long straw biomass strips are cut into particles of required specification length by the cutting tool 407.

[0036] like Figure 7As shown, the grain length adjustment mechanism 4 is composed of two groups of shaft hangers 401, a bidirectional screw rod 402, two groups of reciprocating screw rods 405 and a cutting tool 407, wherein the two groups of bidirectional screw rods 402 are fixedly installed on the bottom of the mounting base 2 through the shaft hangers 401, and one end of the two groups of bidirectional screw rods 402 are fixedly installed with two groups of transmission bevel gears 403, and the outer side of the bidirectional screw rod 402 is sleeved with a limiting thread sleeve 404, and the top of the limiting thread sleeve 404 is movably sleeved on the outer side of the reciprocating screw rod 405; the two groups of reciprocating screw rods 405 are rotatably installed on both sides of the shaft hanger 401, and the outer sides of the two groups of reciprocating screw rods 405 are respectively sleeved with two reciprocating thread sleeves 406, and the cutting tool 407 is fixedly installed between the two reciprocating thread sleeves 406, and the bottoms of the two reciprocating thread sleeves 406 are movably sleeved on the outer side of the bidirectional screw rod 402;

[0037] It should be noted that the transmission assembly 202 drives the two sets of bidirectional screw rods 402 to rotate through the transmission bevel gear 403. Since the top of the limiting wire sleeve 404 is movably connected to the reciprocating wire rod 405, the moving direction of the limiting wire sleeve 404 is limited. The rotating two sets of bidirectional screw rods 402 drive the two sets of limiting wire sleeves 404 to move linearly relative to each other, so as to achieve the purpose of adjusting the distance between the two sets of limiting wire sleeves 404. The stroke of the reciprocating wire sleeve 406 is adjusted by adjusting the distance between the two sets of limiting wire sleeves 404. The cutting speed of the cutting tool 407 is adjusted by adjusting the stroke of the reciprocating wire sleeve 406. The cutting speed of the cutting tool 407 is adjusted by adjusting the cutting speed of the cutting tool 407. length; and through the synchronous pulley group 5, the two groups of reciprocating screw rods 405 are driven to rotate synchronously, and the two groups of reciprocating screw rods 405 rotating synchronously simultaneously drive the two reciprocating wire sleeves 406 to move back and forth. Since the bottom of the reciprocating wire sleeve 406 is movably sleeved on the bidirectional screw rod 402, the moving direction of the reciprocating wire sleeve 406 is limited, and the linear reciprocating movement of the reciprocating wire sleeve 406 is ensured. The cutting tool 407 is driven to move back and forth by the two reciprocating reciprocating wire sleeves 406, and the reciprocating cutting tool 407 cuts the straw biomass strips extending to the bottom of the caliber adjustment mechanism 3 to form biomass particles of the required length, thereby realizing precise control of the cutting length of the straw biomass particles.

[0038] like Figure 8As shown, the caliber adjustment mechanism 3 is composed of a slide plate 301, a caliber adjustment component 302 and a driven gear 303, wherein the slide plate 301 is fixedly mounted on the unloading port at the bottom of the mounting seat 2, the bottom of the slide plate 301 is rotatably mounted with the caliber adjustment component 302, and the driven gear 303 is fixedly mounted on the bottom of the caliber adjustment component 302, wherein the caliber adjustment component 302 is composed of an inner gear ring 3021, four transmission gears 3022 and four movable rack plates 3023, and the four transmission gears 3022 are equidistantly rotatably mounted on the inner gear ring 3 021, and the four transmission gears 3022 are meshed and connected with the inner side of the inner gear ring 3021, and the four mobile rack plates 3023 form a movable opening adjustment component, and the four mobile rack plates 3023 are respectively meshed and connected with the four transmission gears 3022; the transmission component 202 is driven by the driven gear 303 to rotate on the inner gear ring 3021, and the rotating inner gear ring 3021 drives the four meshed mobile rack plates 3023 to move synchronously through the four transmission gears 3022, so as to adjust the blanking diameter of the movable opening adjustment component;

[0039] It should be noted that the slide rail plate 301 is fixedly mounted on the feed opening at the bottom of the mounting seat 2, and its function is to provide a rotating platform for the caliber adjustment component 302; the caliber adjustment component 302 is composed of an inner gear ring 3021, four transmission gears 3022 and four movable rack plates 3023, and the driven gear 303 can mesh and rotate with the linkage gear 2022 in the transmission component 202. Since the driven gear 303 is fixedly mounted on the bottom of the inner gear ring 3021, the linkage gear 2022 transmits the inner gear ring 3021 through the meshing driven gear 303, and the inner gear ring 3021 drives the meshing movable adjustment component through the transmission gear 3022 to adjust the caliber; Specifically, the four transmission gears 3022 are equidistantly installed on the inner side of the inner gear ring 3021 and mesh with the inner gear ring 3021. When the inner gear ring 3021 rotates, the four transmission gears 3022 respectively drive the four movable rack plates 3023 to move synchronously. The four movable rack plates 3023 constitute a movable adjustment component. Therefore, after the linkage gear 2022 in the transmission component 202 drives the inner gear ring 3021 to rotate through the driven gear 303, the rotation of the inner gear ring 3021 can drive the movable rack plate 3023 to move synchronously through the transmission gear 3022, thereby realizing the adjustment of the blanking diameter of the movable adjustment component to meet the blanking requirements under different working conditions.

[0040] like Figures 4 to 6As shown, the transmission assembly 202 is composed of a linkage bevel gear 2021, two groups of first double-headed bevel gear rods 2023 and two groups of second double-headed bevel gear rods 2024, wherein the linkage bevel gear 2021 is meshedly connected with the bottom of the bevel gear ring 603, a linkage gear 2022 is fixedly installed at the bottom of the linkage bevel gear 2021, the linkage gear 2022 is meshedly connected with the driven gear 303, one end of the two groups of first double-headed bevel gear rods 2023 are both meshedly connected with the linkage bevel gear 2021, the other ends of the two groups of first double-headed bevel gear rods 2023 are respectively meshedly connected with two groups of second double-headed bevel gear rods 2024, and the bottom ends of the two groups of second double-headed bevel gear rods 2024 are respectively meshedly connected with the two groups of transmission bevel gears 403;

[0041] It should be noted that the linkage bevel gear 2021 is meshed with the bottom of the bevel gear ring 603, so that the bevel gear ring 603 transmits the linkage bevel gear 2021, and the bottom of the linkage bevel gear 2021 is meshed with the driven gear 303 through the fixedly installed linkage gear 2022, so as to promote the further operation of the entire mechanism; the two groups of first double-headed bevel gear rods 2023 rotate under the drive of the linkage bevel gear 2021, and transmit the power from the linkage bevel gear 2021 to the two groups of second double-headed bevel gear rods 2024, and the two groups of second double-headed bevel gear rods 2024 transmit the power to the two groups of meshing transmission bevel gears 403, so as to realize the linkage of the particle length adjustment mechanism 4 and the caliber adjustment mechanism 3 through the transmission component 202, realize multi-stage transmission, and achieve the synchronous and coordinated work of the particle size adjustment mechanism 6, the particle length adjustment mechanism 4, and the caliber adjustment mechanism 3.

[0042] like Figure 1 , Figure 2 As shown, a driving motor 102 is fixedly installed at the other end of the feeding pipe 1, a spiral conveying rod 103 is rotatably installed inside the feeding pipe 1, and one end of the spiral conveying rod 103 extends to the inside of the particle size adjustment mechanism 6, the output end of the driving motor 102 is fixedly connected to one end of the spiral conveying rod 103, and a pin hole is opened at the other end of the spiral conveying rod 103, and a feeding hopper 101 is fixedly installed on one side of the top of the feeding pipe 1;

[0043] It should be noted that the end of the spiral conveying rod 103 extending to the inside of the particle size regulating mechanism 6 adopts a conical spiral structure. Under the rotational force, the conical spiral structure cooperates with the conical tube 601 in the particle size regulating mechanism 6 to realize the extrusion of the straw biomass material inside the conical tube 601; the pin hole opened at one end of the spiral conveying rod 103 is connected with the pin rod in the synchronous pulley group 5, so that the spiral conveying rod 103 transmits power to the two synchronous pulleys through the pin connection at one end of the pin rod; the straw biomass material entering is received by the feed hopper 101, and the spiral conveying rod 103 is driven to rotate by starting the drive motor 102, thereby generating a spiral propulsion force, and the material is evenly pushed from the feed hopper 101 to the inside of the conical tube 601 at one end of the feed pipe 1, thereby realizing continuous and efficient material transportation and extrusion, and the extruded material passes through the through holes of the die plate 602 to grow into strips.

[0044] like Figure 3 As shown, the synchronous pulley group 5 is composed of two synchronous pulleys and a latch rod, wherein one end of the latch rod is coaxially connected to the two synchronous pulleys, and the output ends of the two sets of synchronous pulleys are respectively connected to one end of the two sets of reciprocating screw rods 405;

[0045] It should be noted that, since the latch rod is connected to one end of the spiral conveying rod 103 through the latch hole, the latch rod transmits the power transmitted by the spiral conveying rod 103 directly from one synchronous pulley to another synchronous pulley, ensuring that the two sets of synchronous pulleys rotate synchronously, and the output ends of the two sets of synchronous pulleys are respectively connected to one end of the two sets of reciprocating screw rods 405, thereby converting the rotational motion into reciprocating linear motion. The working principle is that the two sets of synchronous pulleys transmit power to the two sets of reciprocating screw rods 405, driving the two sets of reciprocating screw rods 405 to run synchronously, and the two sets of reciprocating screw rods 405 running synchronously drive the two reciprocating wire sleeves 406 to move back and forth, thereby realizing precise linear displacement control.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A straw biomass pellet fuel preparation device, comprising a feed pipe (1), a caliber adjustment mechanism (3), a particle length adjustment mechanism (4) and a particle size adjustment mechanism (6), characterized in that: It also includes an outer mounting seat (2) fixedly mounted on one end of the feed pipe (1), and a synchronous pulley set (5) rotatably mounted on one side of the mounting seat (2); A servo steering engine (201) is fixedly mounted on the top of the mounting seat (2), an active bevel gear (203) is fixedly mounted on the output end of the servo steering engine (201), a transmission assembly (202) extending to the bottom is rotatably mounted on the bottom of the mounting seat (2), the particle size adjustment mechanism (6) is rotatably mounted on one end of the feed pipe (1), and the particle size adjustment mechanism (6) is composed of a conical tube (601), three sets of die hole plates (602) and a conical gear ring (603); The grain length adjustment mechanism (4) is fixedly mounted on the bottom of the mounting seat (2), and the grain length adjustment mechanism (4) is transmission-connected to the synchronous pulley set (5); the caliber adjustment mechanism (3) is fixedly mounted on the feed opening at the bottom of the mounting seat (2), and the transmission assembly (202) is transmission-connected to the grain length adjustment mechanism (4) and the caliber adjustment mechanism (3) respectively; The servo steering engine (201) drives the conical tube (601) to rotate through the active bevel gear (203) and the bevel gear ring (603), and the rotating conical tube (601) adjusts the positions of the three sets of die hole plates (602), thereby achieving the purpose of automatically adjusting the particle size. While adjusting the particle size, the bevel gear ring (603) simultaneously drives the particle length adjustment mechanism (4) and the caliber adjustment mechanism (3) through the transmission component (202), so that the particle length adjustment mechanism (4) controls the cutting speed by adjusting the cutting stroke length, thereby achieving the purpose of adjusting the particle length. The driven caliber adjustment mechanism (3) can coordinately adjust the specifications of the feed port according to the adjustment of the particle size and the particle length, so as to facilitate adjusting the feed distance of the cutter according to the cutting stroke length, thereby adjusting the cutting length of the straw biomass particles.

2. The straw biomass pellet fuel preparation device according to claim 1, characterized in that: Three sets of die hole plates (602) are equidistantly embedded in the inner wall of the tapered tube (601), and through holes of different diameters are provided inside the three sets of die hole plates (602). A bevel gear ring (603) is fixedly mounted on the outer side of one end of the tapered tube (601), and the bevel gear ring (603) extends to the inside of the mounting seat (2) and is meshedly connected with the active bevel gear (203).

3. The straw biomass pellet fuel preparation device according to claim 1, characterized in that: The grain length adjustment mechanism (4) is composed of two sets of shaft hangers (401), a bidirectional screw rod (402), two sets of reciprocating screw rods (405) and a cutting tool (407), wherein the two sets of bidirectional screw rods (402) are fixedly mounted on the bottom of the mounting seat (2) through the shaft hangers (401), two sets of transmission bevel gears (403) are fixedly mounted on one end of the two sets of bidirectional screw rods (402), and the outer sides of the bidirectional screw rods (402) are sleeved with limit thread sleeves (404). , and the top of the limiting wire sleeve (404) is movably sleeved on the outside of the reciprocating screw rod (405); the two groups of reciprocating screw rods (405) are rotatably installed on both sides of the shaft hanger (401), and the outsides of the two groups of reciprocating screw rods (405) are respectively sleeved with two reciprocating wire sleeves (406), the cutting tool (407) is fixedly installed between the two reciprocating wire sleeves (406), and the bottoms of the two reciprocating wire sleeves (406) are movably sleeved on the outside of the bidirectional screw rod (402).

4. The straw biomass pellet fuel preparation device according to claim 1, characterized in that: The aperture adjustment mechanism (3) is composed of a slide rail plate (301), an aperture adjustment component (302) and a driven gear (303), wherein the slide rail plate (301) is fixedly mounted on a feed opening at the bottom of the mounting seat (2), the aperture adjustment component (302) is rotatably mounted at the bottom of the slide rail plate (301), and the driven gear (303) is fixedly mounted on the bottom of the aperture adjustment component (302), wherein the aperture adjustment component (302) is composed of an inner gear ring (3021), four transmission gears (3022) and four movable rack plates (3023), and the four transmission gears (3022) are rotatably mounted at equal intervals on the inner gear ring (3021). The inner side of the gear ring (3021) is provided with four transmission gears (3022) meshingly connected with the inner side of the inner gear ring (3021); four movable rack plates (3023) form a movable opening adjustment component, and the four movable rack plates (3023) are respectively meshingly connected with the four transmission gears (3022); the transmission component (202) is driven by the driven gear (303) to rotate on the inner gear ring (3021); the rotating inner gear ring (3021) drives the four meshingly connected movable rack plates (3023) to move synchronously through the four transmission gears (3022), thereby adjusting the blanking diameter of the movable opening adjustment component.

5. The straw biomass pellet fuel preparation device according to claim 4, characterized in that: The transmission assembly (202) is composed of a linkage bevel gear (2021), two groups of first double-headed bevel gear rods (2023) and two groups of second double-headed bevel gear rods (2024), wherein the linkage bevel gear (2021) is meshedly connected with the bottom of the bevel gear ring (603), a linkage gear (2022) is fixedly mounted on the bottom of the linkage bevel gear (2021), the linkage gear (2022) is meshedly connected with the driven gear (303), one end of the two groups of first double-headed bevel gear rods (2023) are meshedly connected with the linkage bevel gear (2021), the other ends of the two groups of first double-headed bevel gear rods (2023) are respectively meshedly connected with the two groups of second double-headed bevel gear rods (2024), and the bottom ends of the two groups of second double-headed bevel gear rods (2024) are respectively meshedly connected with the two groups of transmission bevel gears (403).

6. The straw biomass pellet fuel preparation device according to claim 1, characterized in that: A driving motor (102) is fixedly mounted on the other end of the feed pipe (1), a screw conveying rod (103) is rotatably mounted inside the feed pipe (1), and one end of the screw conveying rod (103) extends into the interior of the particle size adjustment mechanism (6), an output end of the driving motor (102) is fixedly connected to one end of the screw conveying rod (103), and a pin hole is provided at the other end of the screw conveying rod (103), and a feed hopper (101) is fixedly mounted on one side of the top of the feed pipe (1).

7. The straw biomass pellet fuel preparation device according to claim 3, characterized in that: The synchronous pulley group (5) consists of two synchronous pulleys and a latch rod, wherein one end of the latch rod is coaxially connected to the two synchronous pulleys, and the output ends of the two sets of synchronous pulleys are respectively connected to one end of the two sets of reciprocating screw rods (405).

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