Tea dryer with speed regulating mechanism

Abstract

The utility model discloses a tea dryer with a speed regulating mechanism. The tea dryer comprises a drying box; the placing mechanism comprises a rotating shaft and a mounting groove; the rotating shaft is rotationally inserted into the drying box; the mounting groove is formed in the top of the rotating shaft; the speed regulating mechanism comprises a driving shaft, a small gear I and a large gear I, the driving shaft is rotationally inserted into the top of the drying box, and the small gear I and the large gear I are sequentially and fixedly connected to the surface of the driving shaft in a sleeving mode from top to bottom. The first large gear and the second small gear are connected in a meshed mode or the first small gear and the second large gear are connected in a meshed mode, the rotating speed of the rotating shaft can be adjusted, and the differential requirements for the rotating speed in different stages of tea drying are met.

Description

Tea drying machine with speed control mechanism Technical Field

[0001] This utility model relates to the field of tea processing technology, and in particular to a tea dryer with a speed adjustment mechanism. Background Technology

[0002] In the process of processing tea, it is necessary to dry the tea. Existing tea drying equipment is mostly a single fixed-speed rotating device. During the drying process, the tea leaves rotate at a constant speed, and it is impossible to flexibly adjust the speed according to the characteristics and requirements of the tea leaves at different drying stages. Therefore, a tea dryer with a speed regulation mechanism is proposed to solve this problem. Summary of the Invention

[0003] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0004] A tea drying machine with a speed control mechanism includes:

[0005] Drying oven;

[0006] The placement mechanism includes a rotating shaft that is rotatably inserted into the drying oven and a mounting groove opened on the top of the rotating shaft;

[0007] The speed regulating mechanism includes a drive shaft rotatably inserted into the top of the drying chamber and a small gear and a large gear fixedly sleeved on the surface of the drive shaft from top to bottom. An installation shaft is movably inserted into the installation groove. A large gear and a small gear are fixedly sleeved on the surface of the installation shaft from top to bottom. A bolt is threaded between the installation shaft and the rotating shaft.

[0008] The external force drives the drive shaft to rotate, adjusts the height of the mounting shaft in the mounting groove, and controls the engagement of the large gear one with the small gear two or the small gear one with the large gear two.

[0009] As an improvement to the above technical solution, the drying chamber is provided with an inner sleeve, which divides the cavity of the drying chamber into a drying zone and a flow zone from the inside to the outside. The inner sleeve has multiple sets of air outlets for communication between the drying zone and the flow zone. An air inlet pipe communicating with the flow zone is fixedly inserted into the side wall of the drying chamber, and an air outlet pipe communicating with the drying zone is fixedly inserted into the top of the drying chamber.

[0010] As an improvement to the above technical solution, the placement mechanism further includes multiple sets of placement discs arranged at intervals along the extension direction of the rotation axis, and multiple sets of through holes are opened at the bottom of the placement discs.

[0011] As an improvement to the above technical solution, the surface of the mounting shaft is integrally formed with multiple sets of limiting blocks, and the rotating shaft is provided with a limiting groove that matches the limiting blocks within the mounting groove.

[0012] As an improvement to the above technical solution, the speed regulating mechanism also includes a motor installed on the side wall of the drying chamber, and a transmission belt between the motor output shaft and the drive shaft.

[0013] As an improvement to the above technical solution, the distance between the large gear one and the small gear one is smaller than the distance between the large gear two and the small gear two.

[0014] The beneficial effects of this utility model are:

[0015] By adjusting the height of the mounting shaft and changing the meshing state, the large gear one can mesh with the small gear two, or the small gear one can mesh with the large gear two. This allows for the adjustment of the rotation speed of the shaft, meeting the different requirements of rotation speed at different stages of tea drying. Attached Figure Description

[0016] Figure 1 is a front view of the overall structure of this utility model;

[0017] Figure 2 is a schematic diagram of the speed regulating mechanism of this utility model;

[0018] Figure 3 is a schematic diagram of the connection between the rotating shaft and the mounting shaft of this utility model.

[0019] Reference numerals: 10. Drying oven; 11. Inner sleeve; 12. Air outlet; 13. Air outlet pipe; 14. Air inlet pipe; 20. Speed ​​control mechanism; 21. Motor; 22. Transmission belt; 23. Large gear one; 24. Small gear one; 25. Drive shaft; 26. Mounting shaft; 261. Limiting block; 27. Large gear two; 28. Small gear two; 29. ​​Bolt; 30. Placement tray; 31. Through hole; 32. Rotating shaft; 321. Mounting groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] A tea drying machine with a speed control mechanism includes:

[0022] Drying oven 10;

[0023] The placement mechanism includes a rotating shaft 32 that is rotatably inserted into the drying oven 10 and a mounting groove 321 opened on the top of the rotating shaft 32;

[0024] The speed regulating mechanism 20 includes a drive shaft 25 rotatably inserted into the top of the drying chamber 10, and a small gear 24 and a large gear 23 fixedly sleeved on the surface of the drive shaft 25 from top to bottom. An installation shaft 26 is movably inserted into the installation groove 321. A large gear 27 and a small gear 28 are fixedly sleeved on the surface of the installation shaft 26 from top to bottom. A bolt 29 is threaded between the installation shaft 26 and the rotating shaft 32.

[0025] The external force drives the drive shaft 25 to rotate, adjusts the height of the mounting shaft 26 in the mounting groove 321, and controls the engagement of the large gear 23 with the small gear 28 or the small gear 24 with the large gear 27.

[0026] Specifically, when the tea dryer is not started, the drive shaft 25 is stationary, and the rotating shaft 32 is not rotating. If the height of the mounting shaft 26 is adjusted so that the large gear 23 meshes with the small gear 28, when the drive shaft 25 rotates, the large gear 23 drives the small gear 28 to rotate. The small gear 28, through the rotation of the mounting shaft 26, drives the rotating shaft 32 to rotate. Under this meshing method, according to the gear transmission principle, the rotational speed of the rotating shaft 32 will be faster than the rotational speed of the drive shaft 25. When the height of the mounting shaft 26 is adjusted so that the small gear 24 meshes with the large gear 27, the rotation of the drive shaft 25 drives the small gear 24 to rotate, which in turn drives the large gear 27 to rotate, ultimately causing the mounting shaft 26 and the rotating shaft 32 to rotate. At this time, the rotational speed of the rotating shaft 32 will be slower than the rotational speed of the drive shaft 25. The operator can change the meshing state of the gears according to the actual needs of tea drying, thereby adjusting the rotational speed of the rotating shaft 32.

[0027] In one embodiment, the drying chamber 10 is provided with an inner sleeve 11, which divides the cavity of the drying chamber 10 into a drying zone and a flow zone from the inside to the outside. The inner sleeve 11 has multiple sets of air outlets 12 for communication between the drying zone and the flow zone. An air inlet pipe 14, communicating with the flow zone, is fixedly inserted into the side wall of the drying chamber 10, and an air outlet pipe 13, communicating with the drying zone, is fixedly inserted into the top of the drying chamber 10. When the drying chamber 10 starts working, hot air generated by the hot air blower enters the flow zone through the air inlet pipe 14. The hot air in the flow zone enters the drying zone through the air outlets 12. These air outlets 12 are evenly distributed on the inner sleeve 11, allowing the hot air to enter the drying zone relatively evenly, thereby performing a comprehensive and uniform heating and drying operation on the tea leaves placed in the drying zone. In the drying zone, the hot air exchanges heat with the tea leaves, removing moisture from the tea leaves and achieving drying. This hot and humid air is discharged from the drying chamber 10 through the air outlet pipe 13 communicating with the drying zone.

[0028] In one embodiment, the placement mechanism further includes multiple sets of placement trays 30 arranged at intervals along the extension direction of the rotation shaft 32. The bottom of each placement tray 30 has multiple sets of through holes 31. The rotation of the rotation shaft 32 drives the multiple sets of placement trays 30 to rotate synchronously. As the placement trays 30 rotate, the multiple sets of through holes 31 at the bottom of the placement trays 30 allow hot air to not only contact the tea leaves from above the placement trays 30, but also pass through the through holes 31 from below the placement trays 30 to contact the tea leaves. This increases the contact area between the hot air and the tea leaves, improves the heat transfer efficiency, and accelerates the evaporation rate of moisture in the tea leaves.

[0029] In one embodiment, the surface of the mounting shaft 26 is integrally formed with multiple sets of limiting blocks 261. The rotating shaft 32 is provided with a limiting groove adapted to the limiting blocks 261 within the mounting groove 321. When the mounting shaft 26 is inserted into the mounting groove 321 at the top of the rotating shaft 32, the multiple sets of limiting blocks 261 integrally formed on the surface of the mounting shaft 26 will cooperate with the corresponding limiting groove within the mounting groove 321 of the rotating shaft 32. This ensures that the position of the mounting shaft 26 within the mounting groove 321 is relatively fixed, preventing radial or axial movement of the mounting shaft 26 during rotation. This provides a stable foundation for subsequent rotation and speed adjustment. At the same time, the mounting shaft 26 and the rotating shaft 32 are threadedly connected and fixed using bolts 29, further enhancing the firmness of the connection between the two.

[0030] In one embodiment, the speed regulating mechanism further includes a motor 21 installed on the side wall of the drying chamber 10, and a transmission belt 22 between the output shaft of the motor 21 and the drive shaft 25, through which the motor 21 drives the drive shaft 25 to rotate.

[0031] In one embodiment, the distance between the large gear 23 and the small gear 24 is smaller than the distance between the large gear 27 and the small gear 28. When the large gear 23 meshes with the small gear 28, the small gear 24 disengages from the large gear 27. When the small gear 24 meshes with the large gear 27, the large gear 23 disengages from the small gear 28, thus achieving two different gear meshing states.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A tea drying machine with a speed regulating mechanism, characterized in that, include: Drying box (10); placement mechanism, the placement mechanism including a rotating shaft (32) rotatably inserted into the drying box (10) and a mounting groove (321) opened on the top of the rotating shaft (32); speed regulating mechanism (20), the speed regulating mechanism (20) including a drive shaft (25) rotatably inserted into the top of the drying box (10) and a small gear (24) and a large gear (23) fixedly sleeved on the surface of the drive shaft (25) from top to bottom, and a mounting shaft (24) movably inserted into the mounting groove (321). 26), the mounting shaft (26) is fixedly fitted with a large gear two (27) and a small gear two (28) from top to bottom, and a bolt (29) is threaded between the mounting shaft (26) and the rotating shaft (32); wherein, the external force drives the driving shaft (25) to rotate, adjusts the height of the mounting shaft (26) in the mounting groove (321), and controls the meshing connection between the large gear one (23) and the small gear two (28) or the meshing connection between the small gear one (24) and the large gear two (27).

2. The tea drying machine with a speed regulating mechanism according to claim 1, characterized in that: The drying chamber (10) is provided with an inner sleeve (11), which divides the cavity of the drying chamber (10) into a drying zone and a flow zone from the inside to the outside. The inner sleeve (11) has multiple sets of air outlets (12) for communicating with the drying zone and the flow zone. An air inlet pipe (14) communicating with the flow zone is fixedly inserted into the side wall of the drying chamber (10), and an air outlet pipe (13) communicating with the drying zone is fixedly inserted into the top of the drying chamber (10).

3. The tea drying machine with a speed regulating mechanism according to claim 1, characterized in that: The placement mechanism also includes multiple sets of placement disks (30) arranged at intervals along the extension direction of the rotation axis (32), and multiple sets of through holes (31) are provided at the bottom of the placement disks (30).

4. The tea drying machine with a speed regulating mechanism according to claim 1, characterized in that: The surface of the mounting shaft (26) is integrally formed with multiple sets of limiting blocks (261), and the rotating shaft (32) is provided with a limiting groove that is adapted to the limiting blocks (261) located in the mounting groove (321).

5. The tea drying machine with a speed regulating mechanism according to claim 1, characterized in that: The speed regulating mechanism also includes a motor (21) installed on the side wall of the drying box (10), and a transmission belt (22) between the output shaft of the motor (21) and the drive shaft (25).

6. The tea drying machine with a speed regulating mechanism according to claim 1, characterized in that: The distance between the large gear 1 (23) and the small gear 1 (24) is less than the distance between the large gear 2 (27) and the small gear 2 (28).

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