A conveying device for ganoderma spore powder processing

Abstract

The present application relates to the technical fields of screw conveyor device, in particular to a conveying device for ganoderma spore powder processing, which comprises a screw conveyor, the screw conveyor comprises a housing with a conical inner wall, a spiral blade matched with the conical inner wall of the housing, a transmission shaft for transmitting torque, a sleeve slidingly connected to the transmission shaft and driving the spiral blade to rotate, a driving mechanism for driving the spiral blade to move axially, and a locking mechanism for realizing mechanical locking of the spiral blade in the conveying station, the spiral blade is driven to move axially by the driving mechanism, relative movement between the housing and the spiral blade is formed, and finally the transformation between the conveying station and the cleaning station of the spiral blade is completed. In the cleaning station, a relatively large gap is formed between the spiral blade and the inner wall of the housing, the high-pressure cleaning medium can easily impact the inner wall of the pipe body, greatly facilitating the cleaning work inside the housing, and avoiding the formation of cleaning dead angle between the spiral blade and the inner wall of the housing.

Description

Technical Field

[0001] This invention relates to the field of screw conveyor technology, specifically a conveying device for processing Ganoderma lucidum spore powder. Background Technology

[0002] Screw conveyors are widely used in food industrial processing and intelligent manufacturing equipment due to their simple structure, low cost, and good sealing performance. However, the gap between the screw blades and the inner wall of the casing in traditional screw conveyors is fixed. The application of screw conveyors with fixed gaps in food industrial processing and intelligent manufacturing equipment presents the following problems.

[0003] The clearance requirements for "conveyance" and "cleaning" are mutually exclusive. The conveying function requires a very small clearance (typically 0.5-2mm) between the outer edge of the spiral blades and the inner wall of the casing to ensure conveying efficiency. Conversely, the cleaning function requires a sufficiently large clearance (typically 5mm or more) to allow cleaning media (high-pressure air, water mist, cleaning fluid) to easily penetrate. Existing screw conveyors, in order to ensure the core conveying function, are forced to sacrifice the clearance requirements of "cleaning" by adopting a fixed clearance design. This causes the kinetic energy of the high-pressure cleaning media to rapidly attenuate in the tiny gap area, making it unable to effectively pass through and remove residual material. This results in Ganoderma lucidum spore powder residue becoming a breeding ground for microorganisms, leading to cross-contamination between different batches of Ganoderma lucidum spore powder, seriously affecting the purity, safety, and quality consistency of the product.

[0004] Therefore, there is an urgent need in this field for a convenient and clean screw conveyor that can be integrated into modern intelligent production lines to meet the high standards required by food industrial processing and intelligent manufacturing equipment for conveying high-value Ganoderma lucidum spore powder. Summary of the Invention

[0005] The purpose of this invention is to provide a conveying device for processing Ganoderma lucidum spore powder, wherein the gap between the spiral blades of the spiral conveyor and the inner wall of the housing is adjustable, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A conveying device for processing Ganoderma lucidum spore powder includes a screw conveyor, the screw conveyor comprising: The shell has a conical inner wall; A screw conveyor assembly, disposed within the housing, includes... Drive shaft, which drives the motor; The sleeve is slidably connected to the drive shaft via a multi-key guide pair to transmit torque and restrict relative rotation between the two. The spiral blades are fixedly connected to the circumferential surface of the sleeve and have the same taper as the inner wall of the housing; It also includes a drive mechanism, which is located at the end of the sleeve away from the motor, for driving the sleeve to move axially to change the gap between the spiral blade and the inner wall of the housing, so as to realize the transformation of the spiral blade between the conveying station and the cleaning station.

[0007] Preferably, the driving mechanism includes a telescopic cylinder with a built-in magnetostrictive displacement sensor. At least two sets of telescopic cylinders are provided and are distributed at equal angles around the central axis of the drive shaft. The piston rod of the telescopic cylinder acts on the end face of the sleeve. The fixed end of the telescopic cylinder is fixedly connected to the first annular block, and the first annular block is fixedly fitted onto the drive shaft. The telescopic cylinder is connected to an external air source through the same air passage to ensure that the telescopic cylinder moves synchronously.

[0008] Preferably, the air passage includes a pressure equalization chamber, which is located within the first annular block. One end of the pressure equalization chamber is connected to the telescopic cylinder, and the other end is connected to an air passage located within the drive shaft. The air passage is connected to an external air source via a rotary joint and a solenoid valve.

[0009] Preferably, it further includes a reset mechanism, which is disposed at one end of the sleeve near the motor. The reset mechanism includes a reset spring, one end of which is fixedly connected to a second annular block fixedly disposed on the transmission shaft, and the other end abutting against the end face of the sleeve. The reset spring is pre-tightened and causes the other end of the sleeve to abut against a limiting block. The limiting block is fixedly connected to the end of the guide key of the multi-key guide pair. The limiting block is used to mark the conveying position of the spiral blade.

[0010] Preferably, it further includes a locking mechanism, which locks the position of the spiral blade and keeps it in the conveying position during the conveying of Ganoderma lucidum spore powder. The locking mechanism includes: The first spring telescopic rod is installed in the stepped hole opened on the end face of the sleeve. The stepped hole is directly opposite the piston rod of the telescopic cylinder. The main hole diameter on the outside of the stepped hole is larger than the secondary hole diameter on the inside of the stepped hole, and the diameter of the piston rod of the telescopic cylinder is between the main hole diameter and the secondary hole diameter of the stepped hole. The second spring telescopic rod is fixedly connected to the end face of the sleeve, and the central axis of the movable rod of the second spring telescopic rod intersects perpendicularly with the central axis of the sleeve and the stepped hole. The movable rod of the second spring telescopic rod passes through the fixed rod of the second spring telescopic rod. The spring stiffness of the spring in the first spring telescopic rod is much greater than the spring stiffness of the spring in the second spring telescopic rod. The first annular groove is formed near the end of the piston rod of the telescopic cylinder; The second annular groove is formed on the circumferential surface of the drive shaft and corresponds to the movable rod of the second spring telescopic rod; The configuration is such that when the spiral blade is in the conveying position, one end of the second spring telescopic rod is offset from the first annular groove, and the circumferential surface of the piston rod of the telescopic cylinder compresses one end of the second spring telescopic rod, so that the other end just engages with the second annular groove. When the piston rod of the telescopic cylinder compresses the first spring telescopic rod and fully abuts against the step surface in the step hole, one end of the second spring telescopic rod disengages from the second annular groove, and the other end engages with the first annular groove.

[0011] Preferably, the cross-sections of the first annular groove and the second annular groove are both triangular, and the two ends of the movable rod of the second spring telescopic rod are adapted to their respective first annular groove and second annular groove.

[0012] Preferably, it also includes a telescopic sealing component, which includes a first sealing component and a second sealing component; One end of the first sealing component is connected to the first annular block, and the other end is connected to the end face of the sleeve; One end of the second sealing component is connected to the second annular block, and the other end is connected to the other end of the sleeve.

[0013] Preferably, the telescopic sealing component is a metal bellows.

[0014] Preferably, the inner wall of the shell is a conical surface that gradually narrows along the direction of transport of Ganoderma lucidum spore powder, and the cone angle of the inner conical surface of the shell is 10° to 20°.

[0015] Preferably, it also includes a control system, which is communicatively connected to the drive mechanism and controls the drive mechanism to push the spiral blades to the cleaning station.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a shell with a conical inner wall and a matching spiral blade. The spiral blade is driven to move axially by a drive mechanism, which creates a relative movement between the shell and the spiral blade. This increases the gap between the spiral blade and the inner wall of the shell, forming a relatively unobstructed channel. This allows the high-pressure cleaning medium to impact the inner wall of the tube relatively unimpeded, avoiding the formation of cleaning dead zones between the spiral blade and the inner wall of the shell. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the screw conveyor in this invention; Figure 2 A schematic diagram of the structure of the spiral conveyor after cutting through the shell and metal bellows in this invention; Figure 3An exploded view of some structures in this invention (used to show the screw conveyor assembly, drive mechanism and reset mechanism). Figure 4 A schematic diagram of the sleeve, drive shaft, and part of the locking mechanism in this invention; Figure 5 A schematic diagram of the structure of the first annular block and the telescopic cylinder in this invention; Figure 6 A cross-sectional view of the transmission shaft center axis in this invention (the state of the helical blades when they are in the conveying position). Figure 7 The cross-sectional view of the transmission shaft center axis in this invention (instantaneous state of the helical blades moving toward the cleaning station).

[0018] In the diagram: 1. Housing; 101. Inlet; 102. Outlet; 2. Screw conveyor assembly; 201. Drive shaft; 202. Guide key; 203. Air passage; 204. Connecting hole; 205. Spiral blade; 206. Sleeve; 3. Drive mechanism; 301. Telescopic cylinder; 302. First annular block; 303. Pressure equalizing chamber; 4. Reset mechanism; 401. Reset spring; 402. Second annular block; 5. Locking mechanism; 501. First spring telescopic rod; 502. Second spring telescopic rod; 503. First annular groove; 504. Second annular groove; 6. Limiting block; 7. Metal bellows; 8. Motor; 9. Gear reducer; 10. Coupling; 11. Bearing seat; 12. Rotary joint. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a technical solution: The problem with existing screw conveyors used in food industrial processing and intelligent manufacturing equipment stems from the fixed and non-adjustable gap between the screw blades 205 and the inner wall of the housing 1. To address this issue, this invention proposes a conveying device for processing Ganoderma lucidum spore powder: See Figure 1 , Figure 2 A conveying device for processing Ganoderma lucidum spore powder includes a screw conveyor, which mainly includes a shell 1 with a conical inner wall and a screw conveying assembly 2 disposed inside the shell 1.

[0021] The screw conveyor assembly 2 mainly includes a drive shaft 201, a sleeve 206, and screw blades 205. One end of the drive shaft 201 is connected to the motor 8 via the coupling 10 and the gear reducer 9. Three sets of elongated guide keys 202 are provided along the axial direction of the drive shaft 201. The guide keys 202 cooperate with the axially penetrating keyway provided on the inner wall of the sleeve 206 to achieve a sliding fit between the two. The sliding connection of the multi-key guide pair can avoid relative rotation between the sleeve 206 and the drive shaft 201. Preferably, the cross-section of the guide key 202 is triangular. like Figure 2 As shown, the spiral blade 205 has a certain taper and is compatible with the conical surface of the housing 1. The spiral blade 205 can be processed by stamping with a die and then pressing it into a single blade section by a stretching die. Then, multiple blade sections are connected and welded on the sleeve 206 in sequence to form a complete spiral blade 205. Finally, the outer edge generatrix of the spiral blade 205 is precision machined to ensure that its taper is consistent with that of the inner wall of the housing 1.

[0022] The spiral conveyor assembly 2 is installed via the bearing seat 11. The motor 8 drives the conveyor assembly to rotate and cooperates with the housing 1 to convey Ganoderma lucidum spore powder. At the same time, the sleeve 206 is equipped with a drive mechanism 3 at the end away from the motor 8. The drive mechanism 3 is connected to the control system and drives the sleeve 206 to move axially along the transmission shaft 201 according to the received signal, so as to change the gap between the spiral blade 205 and the inner wall of the housing 1 until the sleeve 206 moves to the set cleaning position to meet the requirements of the gap size during cleaning.

[0023] By using the drive mechanism 3 to move the sleeve 206, the gap between the housing 1 on the inner wall of the cone and the spiral blade 205 is changed, thereby fundamentally solving the mutual exclusion of the gap requirements between "conveying" and "cleaning".

[0024] See Figure 3 , Figure 5In this embodiment, the drive mechanism 3 specifically includes a telescopic cylinder 301 with a built-in magnetostrictive displacement sensor. Specifically, a permanent magnet ring is installed on the piston of the cylinder. A waveguide of a magnetostrictive displacement sensor is closely attached to the outside of the cylinder of the telescopic cylinder 301. The sensor measures the real-time position of the piston non-contactly and accurately by detecting the change in the magnetic field of the magnetic ring, and transmits the position signal to the control system. The control system receives, calculates and compares the position parameters with the pre-stored position parameters corresponding to the cleaning station until the real-time position of the spiral blade 205 is the same as the pre-stored position or within the allowable error. The control system then sends a signal to stop the telescopic cylinder 301 and maintain a constant air pressure inside the cylinder, i.e., the position of the positioning sleeve 206. At least three sets of telescopic cylinders 301 are provided and are distributed at equal angles with the central axis of the drive shaft 201 as the center. The air passage of the telescopic cylinders 301 is connected to the same pressure equalization device, and the synchronous action of the telescopic cylinders 301 is achieved by controlling the pressure equalization device. The piston rod of the telescopic cylinder 301 acts on the end face of the sleeve 206. The fixed end of the telescopic cylinder 301 is fixed by the first annular block 302, which is welded to the drive shaft 201.

[0025] The sleeve 206 is slidably connected to the drive shaft 201 through a multi-key guide pair, and the axial movement of the sleeve 206 is controlled by the telescopic cylinder 301 to adjust the gap between the helical blade 205 and the inner wall of the housing 1. The sleeve 206 decouples the rotation and axial movement of the helical blade 205.

[0026] See Figure 5 , Figure 6 or Figure 5 , Figure 7 In this embodiment, an external air source is connected to an air passage 203 opened along the central axis of the drive shaft 201 via a rotary joint 12. Simultaneously, a radial connecting hole 204 is opened along the outer circumference of the drive shaft 201, connecting to the air passage 203. A pressure equalization chamber 303 is opened inside the first annular block 302. The pressure equalization chamber 303 has an open structure facing the inner circumference of the first annular block 302. The first annular block 302 is fitted onto the circumference of the drive shaft 201 and its position is adjusted so that one side of the open structure of the pressure equalization chamber 303 covers the connecting hole 204 on the drive shaft 201. Finally, it is sealed and welded to achieve communication between the air passage 203 and the pressure equalization chamber 303. Multiple telescopic cylinders 301 distributed at equal angles are all connected to this pressure equalization chamber 303 to ensure synchronized movement of the telescopic cylinders 301. At the same time, a solenoid valve is installed between the air source and the rotary joint 12 to control the opening and closing of the air passage.

[0027] See Figure 3The telescopic cylinder 301, pressure equalizing chamber 303, rotary joint 12, solenoid valve, and air source form a single-acting cylinder and are located at one end of the sleeve 206. A reset mechanism 4 is located at the other end of the sleeve 206 to provide a reset force to the sleeve 206 opposite to the thrust of the telescopic cylinder 301. The reset mechanism 4 includes a reset spring 401, which is sleeved on the drive shaft 201. One end of the spring 401 is welded or fixedly connected to the second annular block 402 via a snap fastener, and the other end abuts against the end face of the sleeve 206. The reset spring 401 is pre-compressed, and the pre-compression force of the reset spring 401 causes the other end of the sleeve 206 to abut against the limiting block 6. The limiting block 6 is welded to the end of the guide key 202 and is used to calibrate the conveying position of the spiral blade 205. When the spiral blade 205 is in the conveying position (e.g., when...), the spiral blade 205 is in the conveying position. Figure 6 As shown), the piston rod of the telescopic cylinder 301 is fully retracted and just able to abut against the end face of the sleeve 206.

[0028] See Figure 4 , Figure 5 , Figure 6 In this embodiment, a locking mechanism 5 is added to mechanically lock the spiral blade 205 to the conveying station, replacing the soft limiting of the spiral blade 205 by the preload of the reset spring 401 of the reset mechanism 4. The locking mechanism 5 includes a stepped hole opened on the end face of the sleeve 206. The diameter of the main hole section outside the stepped hole is larger than the diameter of the piston rod of the telescopic cylinder 301, and the diameter of the secondary hole section inside it is smaller than the diameter of the piston rod of the telescopic cylinder 301. The inner wall of the secondary hole section of the lock hole is provided with internal threads, and the outer circumferential surface of the fixing rod of the first spring telescopic rod 501 is provided with external threads. The first spring telescopic rod 501 is detachably installed in the lock hole. The lock hole is arranged along the axial direction of the sleeve 206 and is directly opposite the piston rod of the telescopic cylinder 301. The second spring telescopic rod 502 is installed on the end face of the sleeve 206 by a clamp (not shown in the figure). The central axis of the movable rod of the second spring telescopic rod 502 intersects perpendicularly with the central axis of the sleeve 206 and the stepped hole. The movable rod of the second spring telescopic rod 502 passes through the fixed rod of the second spring telescopic rod 502. One end of the second spring telescopic rod 502 can engage with the first annular groove 503 opened near the end of the piston rod of the telescopic cylinder 301. The other end of the second spring telescopic rod 502 can engage with the second annular groove 504 opened on the circumference of the transmission shaft 201. The cross-section of the first annular groove 503 and the second annular groove 504 is triangular. The two ends of the second spring telescopic rod 502 are adapted to the corresponding first annular groove 503 and second annular groove 504. The first spring telescopic rod 501 and the second spring telescopic rod 502 are commonly used components in machinery, which include a fixed rod, a movable rod and a spring. In this embodiment, the spring stiffness of the spring in the first spring telescopic rod 501 is much greater than the spring stiffness of the spring in the second spring telescopic rod 502.

[0029] The configuration is such that the helical blade 205 is located at the conveying station (e.g., Figure 6 As shown, when the end face of the sleeve 206 abuts against the limiting block 6, the piston rod is in a fully retracted state, the first spring telescopic rod 501 abuts against the piston rod and is in a compressed state, the first annular groove 503 and one end of the second spring telescopic rod 502 are offset from each other, the second spring telescopic rod 502 is in a compressed state, and its end abuts tightly against the circumferential surface of the piston rod of the telescopic cylinder 301, while the other end of the second spring telescopic rod 502 is squeezed and locked into the second annular groove 504 by the piston rod end face, thereby locking the position of the spiral blade 205; during the process of the spiral blade 205 moving from the conveying station to the cleaning station, firstly, the piston rod of the telescopic cylinder 301 acts on the limiting mechanism and releases it from locking the spiral blade 205, specifically: The piston rod of the telescopic cylinder 301 extends and inserts into the stepped hole, compressing the first spring telescopic rod 501. As the piston rod moves, one end face of the second spring telescopic rod 502 slides relative to the surface of the piston rod until the end face of the piston rod abuts against the stepped surface of the stepped hole. At this time, the end of the second spring telescopic rod 502 is directly opposite to the first annular groove 503 and engages in the first annular groove 503. Simultaneously, the other end of the second spring telescopic rod 502 disengages from the second annular groove 504, releasing the lock on the spiral blade 205.

[0030] like Figure 7 As shown, after unlocking, the piston rod acts on the stepped surface of the stepped hole, pushing the sleeve 206 axially to the cleaning station. During this process, one end of the second spring telescopic rod 502 engages with the first annular groove 503, while the other end disengages from the second annular groove 504 and slides along the surface of the drive shaft 201.

[0031] See Figure 2 or Figure 6 In this embodiment, the drive mechanism 3 and the reset mechanism 4 are disposed inside the sealing component to prevent the Ganoderma lucidum spore powder from contacting the drive mechanism 3 and the reset mechanism 4, and at the same time to prevent the Ganoderma lucidum spore powder from intruding into the sliding connection between the sleeve 206 and the transmission shaft 201. The telescopic sealing component includes a first sealing component and a second sealing component. One end of the first sealing component is connected to the circumferential surface of the first annular block 302 via an annular buckle, and the other end is also connected to the circumferential surface of the sleeve 206 via an annular buckle. Similarly, one end of the second sealing component is connected to the circumferential surface of the second annular block 402 via an annular snap fastener, and the other end is also connected to the circumferential surface of the sleeve 206 via an annular snap fastener.

[0032] The first and second sealing components are preferably stainless steel bellows. To reduce the accumulation of Ganoderma lucidum spore powder on the metal bellows 7, air pressure airflow nozzles can be arrayed at equal intervals along the axial direction directly above the stainless steel bellows. During the rotation of the drive shaft 201, the nozzles blow out low-pressure, low-speed airflow to sweep the surface of the rotating metal bellows 7.

[0033] See Figure 2 In this embodiment, the inner wall of the shell 1 is a conical surface that gradually narrows along the conveying direction of Ganoderma lucidum spore powder, so that after the Ganoderma lucidum spore powder enters through the inlet 101, it gradually shrinks and gathers during the conveying process, making it easier to be discharged from the outlet 102.

[0034] The cone angle of the inner conical surface of the housing 1 is selected from the specific production line's focus among "adjustment sensitivity", "equipment length", "axial force magnitude" and "conveying performance", with a preferred range of 10° to 20°.

[0035] Using the device of the present invention: After the motor 8 stops completely, the operator controls the telescopic cylinder 301 to move. The piston rod acts on the limiting mechanism to release the lock on the spiral blade 205. Then, the piston rod acts on the step surface of the stepped hole and pushes the spiral blade 205 to move axially against the resistance of the return spring 401 until the displacement measured by the magnetostrictive displacement sensor built into the telescopic cylinder 301 is the same as or within the allowable error of the displacement parameter set in the control system. The control system controls the telescopic cylinder 301 to stop moving and maintain air pressure, so that the spiral blade 205 is stabilized in the cleaning position under the action of the telescopic cylinder 301 and the return spring 401. At this time, the gap between the spiral blade 205 and the inner wall of the housing 1 is at its maximum, which facilitates cleaning.

[0036] After cleaning, operate the reset button to open the solenoid valve of the control system. The reset spring 401 releases its elastic potential energy and pushes the spiral blade 205 to reset until the end face of the sleeve 206 abuts against the limit block 6. At this time, the two end faces of the second spring telescopic rod 502 are in a state of direct alignment with the first annular groove 503 and the second annular groove 504. The spring in the first spring telescopic rod 501 resets and pushes the piston rod to reset to the fully contracted state. As the piston rod moves, one end of the second spring telescopic rod 502 disengages from the first annular groove 503, and the other end engages with the second annular groove 504, locking the position of the spiral blade 205.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveying device for processing Ganoderma lucidum spore powder, comprising a screw conveyor, characterized in that, The screw conveyor includes: Shell (1), inner wall is conical; A spiral conveyor assembly (2), disposed within the housing (1), includes... Drive shaft (201), drive connection motor (8); The sleeve (206) is slidably connected to the drive shaft (201) via a multi-key guide pair to transmit torque and restrict relative rotation between the two. The spiral blade (205) is fixedly connected to the circumferential surface of the sleeve (206) and has the same taper as the inner wall of the housing (1); It also includes a drive mechanism (3), which is located at the end of the sleeve (206) away from the motor (8) for driving the sleeve (206) to move axially to change the gap between the spiral blade (205) and the inner wall of the housing (1), so as to realize the transformation of the spiral blade (205) between the conveying station and the cleaning station.

2. The conveying device for processing Ganoderma lucidum spore powder according to claim 1, characterized in that, The drive mechanism (3) includes a telescopic cylinder (301) with a built-in magnetostrictive displacement sensor. At least two sets of telescopic cylinders (301) are provided and are distributed at equal angles with the central axis of the drive shaft (201) as the center. The piston rod of the telescopic cylinder (301) acts on the end face of the sleeve (206). The fixed end of the telescopic cylinder (301) is fixedly connected to the first annular block (302). The first annular block (302) is fixedly fitted on the drive shaft (201). The telescopic cylinder (301) is connected to an external air source through the same air passage to ensure that the telescopic cylinder (301) moves synchronously.

3. The conveying device for processing Ganoderma lucidum spore powder according to claim 2, characterized in that, The air passage includes a pressure equalization chamber (303), which is located inside the first annular block (302). One end of the pressure equalization chamber (303) is connected to the telescopic cylinder (301), and the other end is connected to the air passage (203) located inside the drive shaft (201). The air passage (203) is connected to an external air source after passing through a rotary joint (12) and a solenoid valve.

4. A conveying device for processing Ganoderma lucidum spore powder according to claim 3, characterized in that, It also includes a reset mechanism (4), which is located at one end of the sleeve (206) near the motor (8). It includes a reset spring (401), one end of which is fixedly connected to a second annular block (402) fixedly mounted on the transmission shaft (201), and the other end abuts against the end face of the sleeve (206). The reset spring (401) is pre-tightened and the other end of the sleeve (206) abuts against a limiting block (6). The limiting block (6) is fixedly connected to the end of the guide key (202) of the multi-key guide pair. The limiting block (6) is used to mark the conveying position of the spiral blade (205).

5. A conveying device for processing Ganoderma lucidum spore powder according to claim 4, characterized in that, It also includes a locking mechanism (5), which locks the position of the spiral blade (205) and keeps it in the conveying position during the conveying of Ganoderma lucidum spore powder. The locking mechanism (5) includes: The first spring telescopic rod (501) is installed in the stepped hole opened on the end face of the sleeve (206). The stepped hole is directly opposite the piston rod of the telescopic cylinder (301). The main hole diameter on the outside of the stepped hole is larger than the secondary hole diameter on the inside of the stepped hole, and the diameter of the piston rod of the telescopic cylinder (301) is between the main hole diameter and the secondary hole diameter of the stepped hole. The second spring telescopic rod (502) is fixedly connected to the end face of the sleeve (206), and the central axis of the movable rod of the second spring telescopic rod (502) intersects perpendicularly with the central axis of the sleeve (206) and the stepped hole. The movable rod of the second spring telescopic rod (502) passes through the fixed rod of the second spring telescopic rod (502). The spring stiffness of the spring in the first spring telescopic rod (501) is much greater than the spring stiffness of the spring in the second spring telescopic rod (502). The first annular groove (503) is provided near the end of the piston rod of the telescopic cylinder (301); The second annular groove (504) is formed on the circumferential surface of the drive shaft (201) and corresponds to the movable rod of the second spring telescopic rod (502); The configuration is such that when the spiral blade (205) is in the conveying position, one end of the second spring telescopic rod (502) is offset from the first annular groove (503), and the circumferential surface of the piston rod of the telescopic cylinder (301) compresses one end of the second spring telescopic rod (502) and makes its other end engage with the second annular groove (504). When the piston rod of the telescopic cylinder (301) compresses the first spring telescopic rod (501) and fully abuts against the step surface in the step hole, one end of the second spring telescopic rod (502) disengages from the second annular groove (504), and the other end engages with the first annular groove (503).

6. A conveying device for processing Ganoderma lucidum spore powder according to claim 5, characterized in that, The cross-sections of the first annular groove (503) and the second annular groove (504) are both triangular, and the two ends of the movable rod of the second spring telescopic rod (502) are adapted to the corresponding first annular groove (503) and second annular groove (504).

7. A conveying device for processing Ganoderma lucidum spore powder according to claim 4, characterized in that, It also includes a telescopic sealing component, which comprises a first sealing component and a second sealing component; One end of the first sealing component is connected to the first annular block (302), and the other end is connected to the end face of the sleeve (206); One end of the second sealing component is connected to the second annular block (402), and the other end is connected to the other end of the sleeve (206).

8. A conveying device for processing Ganoderma lucidum spore powder according to claim 7, characterized in that, The telescopic sealing component is a metal bellows (7).

9. A conveying device for processing Ganoderma lucidum spore powder according to claim 1, characterized in that, The inner wall of the shell (1) is a conical surface that gradually narrows along the direction of transporting Ganoderma lucidum spore powder, and the cone angle of the inner conical surface of the shell (1) is 10° to 20°.

10. A conveying device for processing Ganoderma lucidum spore powder according to claim 1, characterized in that, It also includes a control system, which is communicatively connected to the drive mechanism (3) and controls the drive mechanism (3) to push the spiral blade (205) to the cleaning station.

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