Multi-shaft stirring transmission device with adjustable shaft spacing

Abstract

The application provides a multi-shaft stirring transmission device capable of adjusting the shaft spacing, which is characterized by comprising an upper cover plate and a lower cover plate serving as support structures arranged above a stirring tank, and a transmission gear system composed of a power input shaft, a right power output shaft, a left power output shaft, a right power output shaft transmission gear, a power input shaft transmission gear and a left power output shaft transmission gear. The shaft spacing split-shaft transmission device capable of stepless adjustment can help researchers quickly and accurately adjust the shaft spacing of the power output shaft, and facilitate the exploration of the most suitable equipment parameters to adapt to the production and experiments in specific fields.

Description

Technical Field

[0001] This invention relates to mixing equipment, specifically related supporting devices. Background Technology

[0002] Mixing equipment plays a vital role in production processes across various fields, including chemical, biological, food, and pharmaceutical industries. Highly efficient mixing equipment significantly impacts product quality and yield. Improvements or upgrades to mixing equipment typically focus on two aspects: the shape of the agitator and the shape of the mixing paddle.

[0003] Beyond conventional improvement methods, multi-axis linkage and synergy can be used to enhance the flow field mixing within the mixing chamber. Existing research has experimentally demonstrated that multi-axis stirrers can significantly enhance the chaotic mixing effect of fluids within the mixing chamber, offering significant advantages in shortening mixing time and improving the uniformity of mass and heat transfer. However, when using multi-axis stirrers, a power input device is often required for each stirring shaft, which inevitably occupies a large space and makes it difficult to adjust the impeller spacing, thus hindering adaptation to specific production and experimental applications. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-axis stirring transmission device with adjustable shaft spacing, characterized in that: it includes an upper cover plate and a lower cover plate as a support structure disposed above the stirring tank, and a transmission gear system composed of a power input shaft, a right power output shaft, a left power output shaft, a right power output shaft transmission gear, a power input shaft transmission gear, and a left power output shaft transmission gear.

[0005] The upper cover plate and the lower cover plate are connected by cover plate fixing supports.

[0006] The upper cover plate is provided with a slide groove for fixing the power output shaft. The slide groove for fixing the power output shaft includes a central cross groove I and four strip grooves I. The right power output shaft and the left power output shaft pass through two opposite branches of the cross groove I, and the strip grooves are symmetrically opened on both sides of these two branches. The power input shaft passes through the other two branches of the cross groove I.

[0007] The lower cover plate is provided with a power input shaft fixing device slide groove. The main body of the power input shaft fixing device slide groove is a cross groove II corresponding to the cross groove I. The power input shaft passes through two opposite branches of the cross groove II, and strip grooves II are symmetrically opened on both sides of these two branches. The right power output shaft and the left power output shaft pass through the other two branches of the cross groove II, respectively.

[0008] A power input shaft drive gear is mounted on the power input shaft. A right power output shaft drive gear is mounted on the right power output shaft. A left power output shaft drive gear is mounted on the left power output shaft. The power input shaft drive gear meshes with the right power output shaft drive gear and the left power output shaft drive gear, respectively. Each of the power input shaft, right power output shaft, and left power output shaft is equipped with a retaining structure. A stirring paddle is mounted at the lower end of each of the right and left power output shafts. The upper end of the power input shaft is connected to the motor shaft. After the retaining structure is unlocked, the power input shaft, right power output shaft, and left power output shaft can slide within the cross groove I to change the distance between the stirring paddles. This device, a stepless adjustable shaft spacing split-shaft transmission device, can help researchers quickly and accurately adjust the shaft spacing of the power output shafts, facilitating the exploration of the most suitable equipment parameters for production and experimentation in specific fields.

[0009] Furthermore, the retaining structure of the right power output shaft includes a fixing nut, a right power output shaft fixing rod, and a right power output shaft bearing. The inner ring of the right power output shaft bearing is fixed to the right power output shaft. L-shaped right power output shaft fixing rods are fixedly connected to both ends of the outer ring of the right power output shaft bearing. The upper end of the right power output shaft fixing rod passes through the strip groove I and is then screwed into the fixing nut. After loosening the fixing nut, the right power output shaft can slide within the cross groove I; after tightening the fixing nut, the right power output shaft is locked.

[0010] The retaining structure of the power input shaft includes a fixing nut, a power input shaft fixing rod, and a power input shaft bearing. The inner ring of the right power output shaft bearing is fixed to the power input shaft. L-shaped power input shaft fixing rods are fixedly connected to both ends of the outer ring of the power input shaft bearing. The lower end of the power input shaft fixing rod passes through the slot II and is then screwed into the fixing nut. After loosening the fixing nut, the power input shaft can slide within the cross slot II; after tightening the fixing nut, the power input shaft is locked.

[0011] The retaining structure of the left power output shaft includes a fixing nut, a left power output shaft fixing device, and a left power output shaft bearing. The inner ring of the left power output shaft bearing is fixed to the left power output shaft. L-shaped left power output shaft fixing devices are fixedly connected to both ends of the outer ring of the left power output shaft bearing. The upper end of the left power output shaft fixing device passes through the strip groove I and is then screwed into the fixing nut. After loosening the fixing nut, the left power output shaft can slide within the cross groove I; after tightening the fixing nut, the right power output shaft is locked.

[0012] Furthermore, the cover plate is provided with mounting holes to ensure that the device is fixed on the platform where the mixing tank is located.

[0013] Furthermore, agitators are installed at the lower ends of the power input shaft, the right power output shaft, and the left power output shaft.

[0014] Furthermore, the width of the groove through which the power input shaft, right power output shaft, and left power output shaft pass is slightly larger than the diameter of the shaft.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1) The power transmission of the present invention is achieved by the meshing of gears, which is direct and without delay. Compared with consumable parts such as belts and chains, gears are simpler and more durable.

[0017] 2) This invention, through the cooperation of the sliding groove and the shaft fixing device, enables stepless adjustment of the shaft spacing of the power output shaft. Compared with the fixed shaft spacing splitter, it can save the processing costs of multiple sets of equipment. At the same time, it reduces the number of power output sources such as motors, thus saving equipment costs.

[0018] 3) This invention can achieve different speed distributions and shaft rotation directions by replacing the gears coaxial with the power input shaft and power output shaft, which is more flexible than a splitter with a fixed shaft spacing.

[0019] 4) The technical solution of the present invention is simple, low in cost, and easy to operate. It can significantly save the time required for shaft spacing adjustment, effectively reduce the number of power input devices such as motors during the use of multi-shaft stirrers, and provide equipment support for researchers to explore the influence of shaft spacing of multi-shaft stirrers. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention (bottom);

[0022] Figure 3 This is a schematic diagram of the upper cover plate structure;

[0023] Figure 4 This is a schematic diagram of the lower cover plate structure.

[0024] In the figure: upper cover plate (1), power output shaft slide groove (2), power output shaft fixing device slide groove (3), power input shaft (4), power input shaft slide groove (5), right power output shaft (6), fixing nut (7), right power output shaft fixing rod (8), right power output shaft bearing (9), right power output shaft transmission gear (10), power input shaft bearing (11), power input shaft fixing device slide groove (12), power input shaft fixing rod (13), power input shaft transmission gear (14), left power output shaft transmission gear (15), lower cover plate (16), cover plate fixing support (17), left power output shaft bearing (18), left power output shaft fixing device (19), left power output shaft (20). Detailed Implementation

[0025] The present invention will be further described below with reference to embodiments, but it should not be construed that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention should be included within the scope of protection of the present invention.

[0026] Example 1:

[0027] A multi-axis stirring transmission device with adjustable shaft spacing is characterized in that it includes an upper cover plate 1 and a lower cover plate 16 as a support structure disposed above the stirring tank, and a transmission gear system composed of a power input shaft 4, a right power output shaft 6, a left power output shaft 20, a right power output shaft transmission gear 10, a power input shaft transmission gear 14, and a left power output shaft transmission gear 15.

[0028] The upper cover plate 1 and the lower cover plate 16 are connected by cover plate fixing support 17.

[0029] The upper cover plate 1 is provided with a power output shaft fixing device slide groove 3. The power output shaft fixing device slide groove 3 includes a central cross groove I301 and four strip grooves I302. The right power output shaft 6 and the left power output shaft 20 respectively pass through two opposite branches of the cross groove I301, and the strip grooves 302 are symmetrically opened on both sides of these two branches. The power input shaft 4 passes through the other two branches of the cross groove I301.

[0030] The lower cover plate 16 is provided with a power input shaft fixing device slide groove 12. The main body of the power input shaft fixing device slide groove 12 is a cross groove II1201 corresponding to the cross groove I301. The power input shaft 4 passes through two opposite branches of the cross groove II1201, and the two sides of these branches are symmetrically provided with strip grooves II1202. The right power output shaft 6 and the left power output shaft 20 pass through the other two branches of the cross groove II1201, respectively.

[0031] A power input shaft drive gear 14 is mounted on the power input shaft 4. A right power output shaft drive gear 10 is mounted on the right power output shaft 6. A left power output shaft drive gear 15 is mounted on the left power output shaft 20. The power input shaft drive gear 14 meshes with the right power output shaft drive gear 10 and the left power output shaft drive gear 15, respectively. Each of the power input shaft 4, right power output shaft 6, and left power output shaft 20 is equipped with a retaining structure. A stirring paddle is mounted at the lower end of each of the right power output shaft 6 and left power output shaft 20. The upper end of the power input shaft 4 is connected to the motor shaft. In this embodiment, a stirring paddle can also be mounted at the lower end of the power input shaft 4. After the retaining structure is unlocked, the power input shaft 4, right power output shaft 6, and left power output shaft 20 can slide within the cross groove I301 to change the distance between the stirring paddles. Specifically, the shaft spacing of the power output shafts is fixed by tightening the shaft fixing device screws during use. When it is necessary to adjust the shaft spacing of the power output shafts, the power output shafts and power input shafts are moved along the slide groove to the desired position. The minimum shaft spacing of the power output shaft is slightly greater than the sum of the radii of the two power output shafts, and the maximum shaft spacing is the sum of the diameter of the power input shaft, the radius of the left power output shaft, and the radius of the right power output shaft.

[0032] Example 2:

[0033] The main structure of this embodiment is the same as that of Embodiment 1. Further, the retaining structure of the right power output shaft 6 includes a fixing nut 7, a right power output shaft fixing rod 8, and a right power output shaft bearing 9. The inner ring of the right power output shaft bearing 9 is fixed to the right power output shaft 6. L-shaped right power output shaft fixing rods 8 are fixedly connected to both ends of the outer ring of the right power output shaft bearing 9. The upper end of the right power output shaft fixing rod 8 passes through the strip groove I302 and is then screwed into the fixing nut 7. After loosening the fixing nut 7, the right power output shaft 6 can slide within the cross groove I301. After tightening the fixing nut 7, the right power output shaft 6 is locked, and the spatial position of the shaft can be fixed during use to ensure that normal use is not affected.

[0034] The retaining structure of the power input shaft 4 includes a fixing nut 7, a power input shaft fixing rod 13, and a power input shaft bearing 11. The inner ring of the right power output shaft bearing 9 is fixed to the power input shaft 4. L-shaped power input shaft fixing rods 13 are fixedly connected to both ends of the outer ring of the power input shaft bearing 11. The lower end of the power input shaft fixing rod 13 passes through the strip groove II1202 and is then screwed into the fixing nut 7. After loosening the fixing nut 7, the power input shaft 4 can slide within the cross groove II1201. After tightening the fixing nut 7, the power input shaft 4 is locked, and the spatial position of the shaft can be fixed during use to ensure that normal use is not affected.

[0035] The retaining structure of the left power output shaft 20 includes a fixing nut 7, a left power output shaft fixing device 19, and a left power output shaft bearing 18. The inner ring of the left power output shaft bearing 18 is fixed to the left power output shaft 20. L-shaped left power output shaft fixing devices 19 are fixedly connected to both ends of the outer ring of the left power output shaft bearing 18. The upper end of the left power output shaft fixing device 19 passes through the strip groove I302 and is then screwed into the fixing nut 7. After loosening the fixing nut 7, the left power output shaft 20 can slide within the cross groove I301. After tightening the fixing nut 7, the right power output shaft 6 is locked, and the spatial position of the shaft can be fixed during use to ensure that normal use is not affected.

[0036] Example 3:

[0037] The main structure of this embodiment is the same as that of embodiment 1 or 2. In addition, the cover plate is provided with mounting holes to ensure that the device is fixed on the platform where the mixing tank is located.

[0038] In this embodiment, when the power input shaft and the power output shaft need to rotate at the same speed, the power transmission gears are of the same size. When it is necessary to adjust the rotational speed between the power input shaft and the output shaft, the relative size of the power transmission gears needs to be adjusted.

[0039] In this embodiment, the width of the groove through which the power input shaft 4, right power output shaft 6, and left power output shaft 20 pass is slightly larger than the diameter of the shaft, meaning the width of the groove is slightly larger than the power transmission shaft. The adjustable range of the shaft spacing of the power output shaft is related to the size of the power transmission gear. When the diameter of the power transmission gear is large, the adjustable range of the shaft spacing of the power output shaft is large. When the three gears—the power transmission gear of the power input shaft, the power transmission gear of the power output shaft, and the power transmission gear of the power output shaft—are in a straight line, the shaft spacing of the power output shaft is at its maximum. When the power input shaft is located at the top of the groove, the shaft spacing of the power output shaft is at its minimum.

Claims

1. A multi-axis stirring transmission device with adjustable shaft spacing, characterized in that: It includes an upper cover plate (1) and a lower cover plate (16) set above the mixing tank as a support structure, and a transmission gear system consisting of a power input shaft (4), a right power output shaft (6), a left power output shaft (20), a right power output shaft transmission gear (10), a power input shaft transmission gear (14), and a left power output shaft transmission gear (15); The upper cover plate (1) and the lower cover plate (16) are connected by a cover plate fixing support (17); The upper cover plate (1) is provided with a power output shaft fixing device slide groove (3); the power output shaft fixing device slide groove (3) includes a central cross groove I (301) and four strip grooves I (302); the right power output shaft (6) and the left power output shaft (20) pass through two opposite branches of the cross groove I (301), and the two branches are symmetrically provided with strip grooves (302); the power input shaft (4) passes through the other two branches of the cross groove I (301); The lower cover plate (16) is provided with a power input shaft fixing device slide groove (12); the main body of the power input shaft fixing device slide groove (12) is a cross groove II (1201) corresponding to the cross groove I (301); the power input shaft (4) passes through two opposite branches of the cross groove II (1201), and the two sides of the two branches are symmetrically provided with strip grooves II (1202); the right power output shaft (6) and the left power output shaft (20) pass through the other two branches of the cross groove II (1201); A power input shaft transmission gear (14) is installed on the power input shaft (4); a right power output shaft transmission gear (10) is installed on the right power output shaft (6); a left power output shaft transmission gear (15) is installed on the left power output shaft (20); the power input shaft transmission gear (14) meshes with the right power output shaft transmission gear (10) and the left power output shaft transmission gear (15) respectively; the power input shaft (4), the right power output shaft (6), and the left power output shaft (20) are respectively equipped with retaining structures; a stirring paddle is installed at the lower end of the right power output shaft (6) and the left power output shaft (20); the upper end of the power input shaft (4) is connected to the rotating shaft of the motor; after the retaining structure is unlocked, the power input shaft (4), the right power output shaft (6), and the left power output shaft (20) can slide in the cross groove I (301) and the cross groove II (1201) to change the distance between the stirring paddles.

2. The multi-axis stirring transmission device with adjustable shaft spacing according to claim 1, characterized in that: The retaining structure of the right power output shaft (6) includes a fixing nut (7), a right power output shaft fixing rod (8), and a right power output shaft bearing (9); the inner ring of the right power output shaft bearing (9) is fixed to the right power output shaft (6); the two ends of the outer ring of the right power output shaft bearing (9) are fixedly connected to L-shaped right power output shaft fixing rods (8); the upper end of the right power output shaft fixing rod (8) passes through the strip groove I (302) and then screws in the fixing nut (7); after the fixing nut (7) is loosened, the right power output shaft (6) can slide in the cross groove I (301); after the fixing nut (7) is tightened, the right power output shaft (6) is locked. The retaining structure of the power input shaft (4) includes a fixing nut (7), a power input shaft fixing rod (13), and a power input shaft bearing (11); the inner ring of the right power output shaft bearing (9) is fixed to the power input shaft (4); the two ends of the outer ring of the power input shaft bearing (11) are fixedly connected to L-shaped power input shaft fixing rods (13); the lower end of the power input shaft fixing rod (13) passes through the strip groove II (1202) and is screwed into the fixing nut (7); after the fixing nut (7) is loosened, the power input shaft (4) can slide in the cross groove II (1201); after the fixing nut (7) is tightened, the power input shaft (4) is locked. The retaining structure of the left power output shaft (20) includes a fixing nut (7), a left power output shaft fixing device (19), and a left power output shaft bearing (18); the inner ring of the left power output shaft bearing (18) is fixed to the left power output shaft (20); the two ends of the outer ring of the left power output shaft bearing (18) are fixedly connected to L-shaped left power output shaft fixing devices (19); after the upper end of the left power output shaft fixing device (19) passes through the strip groove I (302), the fixing nut (7) is screwed in; after the fixing nut (7) is loosened, the left power output shaft (20) can slide in the cross groove I (301); after the fixing nut (7) is tightened, the right power output shaft (6) is locked.

3. The multi-axis stirring transmission device with adjustable shaft spacing according to claim 1, characterized in that: The cover plate has mounting holes to ensure that the device is fixed on the platform where the mixing tank is located.

4. The multi-axis stirring transmission device with adjustable shaft spacing according to claim 1, characterized in that: Agitators are installed at the lower ends of the power input shaft (4), the right power output shaft (6), and the left power output shaft (20).

5. The multi-axis stirring transmission device with adjustable shaft spacing according to claim 1, characterized in that: The width of the groove through which the power input shaft (4), right power output shaft (6), and left power output shaft (20) pass is slightly larger than the diameter of the shaft.

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