Multi-shaft stirring transmission device capable of adjusting distance between shafts

Abstract

The invention provides a multi-shaft stirring transmission device capable of adjusting shaft spacing, which is characterized by comprising an upper cover plate and a lower cover plate which are arranged above a stirring tank and are used as supporting structures, and the transmission gear system consists 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 split shaft transmission device capable of adjusting the distance between the shafts in a stepless mode can help researchers to adjust the distance between the shafts of the power output shafts rapidly and accurately, and is convenient to explore the most suitable equipment parameters so as to be suitable for production and experiments in the specific field.

Description

Technical Field

[0001] The present invention relates to stirring equipment, specifically related supporting devices. Background Art

[0002] Stirring equipment plays an important role in the production processes of various fields such as chemical industry, biology, food, and pharmaceuticals. Efficient stirring equipment has a significant impact on ensuring the quality and output of products. The improvement or upgrade of stirring equipment often starts from two aspects: the shape of the stirrer and the shape of the stirring paddle.

[0003] In addition to the conventional improvement methods, multi-axis linkage and mutual cooperation can be used to strengthen the mixing of the flow field in the mixing chamber. Existing research has proven through experiments that multi-axis stirrers can significantly enhance the chaotic mixing effect of fluids in the mixing chamber, and have significant advantages in shortening the mixing time, improving the uniformity of mass transfer and heat transfer. However, when using multi-axis stirrers, it is often necessary to provide a power input device for each stirring shaft, which inevitably occupies a large space, and it is difficult to adjust the distance between the stirring paddles, making it difficult to adapt to production and experiments in specific fields. Summary of the Invention

[0004] The object of the present invention is to provide a multi-axis stirring transmission device with adjustable shaft spacing, which is characterized in that it includes an upper cover plate and a lower cover plate serving as a support structure arranged 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 struts.

[0006] A power output shaft fixing device chute is arranged on the upper cover plate. The power output shaft fixing device chute includes a cross groove I at the center and four strip grooves I. The right power output shaft and the left power output shaft respectively pass through two opposite branches of the cross groove I, and 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] A power input shaft fixing device chute is arranged on the lower cover plate. The main part of the power input shaft fixing device chute 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 respectively pass through the other two branches of the cross groove II.

[0008] A power input shaft transmission gear is installed on the power input shaft. A right power output shaft transmission gear is installed on the right power output shaft. A left power output shaft transmission gear is installed on the left power output shaft. The power input shaft transmission gear meshes with the right power output shaft transmission gear and the left power output shaft transmission gear respectively. The power input shaft, the right power output shaft, and the left power output shaft are respectively equipped with a retaining structure. Stirring paddles are installed at the lower ends of the right power output shaft and the left power output shaft. The upper end of the power input shaft is connected to the rotating shaft of the motor. After the retaining structure is unlocked, the power input shaft, the right power output shaft, and the left power output shaft can slide within the cross groove I to change the distance between the stirring paddles. The above device, a split-shaft transmission device that can infinitely adjust the shaft spacing, can help researchers quickly and accurately adjust the shaft spacing of the power output shaft, facilitating the exploration of the most suitable equipment parameters for production and experiments in specific fields.

[0009] Further, 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. Both ends of the outer ring of the right power output shaft bearing are fixedly connected with an L-shaped right power output shaft fixing rod. After the upper end of the right power output shaft fixing rod penetrates into the strip-shaped groove I, it is screwed into the fixing nut. After loosening the fixing nut, the right power output shaft can slide within the cross groove I, and 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. Both ends of the outer ring of the power input shaft bearing are fixedly connected with an L-shaped power input shaft fixing rod. After the lower end of the power input shaft fixing rod penetrates into the strip-shaped groove II, it is screwed into the fixing nut. After loosening the fixing nut, the power input shaft can slide within the cross groove II, and 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. Both ends of the outer ring of the left power output shaft bearing are fixedly connected with an L-shaped left power output shaft fixing device. After the upper end of the left power output shaft fixing device penetrates into the strip-shaped groove I, it is screwed into the fixing nut. After loosening the fixing nut, the left power output shaft can slide within the cross groove I, and after tightening the fixing nut, the right power output shaft is locked.

[0012] Further, mounting holes are provided on the cover plate to ensure that the device is fixed on the platform where the stirring tank is located.

[0013] Further, stirring paddles 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 sliding groove through which the power input shaft, the right power output shaft, and the left power output shaft pass is slightly larger than the diameter of the shaft.

[0015] Compared with the prior art, the benefits of the present invention are as follows:

[0016] 1) The power transmission of the present invention is realized through the meshing of gears. The power transmission is direct and without hysteresis. Gears are simpler and more durable than consumable parts such as belts and chains.

[0017] 2) Through the mutual cooperation of the sliding groove and the shaft fixing device of the present invention, stepless adjustment of the shaft spacing of the power output shaft can be achieved. Compared with a splitter with a fixed shaft spacing, the processing costs of multiple sets of equipment can be saved. At the same time, the number of power output sources such as motors is saved, and equipment costs are saved.

[0018] 3) The present invention can achieve different speed distributions and shaft rotation directions by replacing the gears coaxial with the power input shaft and the 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, with low cost and convenient operation. 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 a multi-shaft agitator, and provide equipment support for researchers to explore the influence of the shaft spacing of the multi-shaft agitator. Description of the Drawings

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

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

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

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

[0024] In the figure: upper cover plate (1), power output shaft sliding groove (2), power output shaft fixing device sliding groove (3), power input shaft (4), power input shaft sliding 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 sliding 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 column (17), left power output shaft bearing (18), left power output shaft fixing device (19), left power output shaft (20). Detailed implementation manners

[0025] The present invention will be further described below in conjunction with embodiments, but it should not be understood that the above-mentioned subject scope of the present invention is limited to the following embodiments. Without departing from the above technical idea of the present invention, various substitutions and changes should be included within the protection scope of the present invention according to ordinary technical knowledge and customary means in the art.

[0026] Embodiment 1:

[0027] 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 as a support structure arranged 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 struts 17.

[0029] A power output shaft fixing device chute 3 is arranged on the upper cover plate 1. The power output shaft fixing device chute 3 includes a cross groove I301 at the center 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 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] A power input shaft fixing device chute 12 is arranged on the lower cover plate 16. The main part of the power input shaft fixing device chute 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 strip grooves II1202 are symmetrically opened on both sides of these two branches. The right power output shaft 6 and the left power output shaft 20 respectively pass through the other two branches of the cross groove II1201.

[0031] A power input shaft transmission gear 14 is mounted on the power input shaft 4. A right power output shaft transmission gear 10 is mounted on the right power output shaft 6. A left power output shaft transmission gear 15 is mounted 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 provided with a retaining structure. Stirring paddles are mounted at the lower ends 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. In the 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, the right power output shaft 6, and the left power output shaft 20 can slide in the cross groove I301 to change the distance between the stirring paddles. Specifically, when in use, the axial distance of the power output shaft is fixed by tightening the screws of the shaft fixing device. When the axial distance of the power output shaft needs to be adjusted, the power output shaft and the power input shaft are moved along the sliding groove to the required position. The minimum axial distance of the power output shaft is slightly larger than the sum of the radii of the two power output shafts, and the maximum axial distance 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] Embodiment 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. The two ends of the outer ring of the right power output shaft bearing 9 are fixedly connected with an L-shaped right power output shaft fixing rod 8. After the upper end of the right power output shaft fixing rod 8 passes through the strip groove I302, the fixing nut 7 is screwed in. After the fixing nut 7 is loosened, the right power output shaft 6 can slide in the cross groove I301. After the fixing nut 7 is tightened, the right power output shaft 6 is locked, and the spatial position of the shaft can be fixed during use to ensure that it does not affect normal use.

[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. The two ends of the outer ring of the power input shaft bearing 11 are fixedly connected with an L-shaped power input shaft fixing rod 13. After the lower end of the power input shaft fixing rod 13 passes through the strip groove II1202, the fixing nut 7 is screwed in. After the fixing nut 7 is loosened, the power input shaft 4 can slide in the cross groove II1201. After the fixing nut 7 is tightened, the power input shaft 4 is locked, and the spatial position of the shaft can be fixed during use to ensure that it does not affect normal use..

[0035] The holding 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. Both ends of the outer ring of the left power output shaft bearing 18 are fixedly connected with an L-shaped left power output shaft fixing device 19. After the upper end of the left power output shaft fixing device 19 passes through the strip-shaped groove I302, the fixing nut 7 is screwed in. After loosening the fixing nut 7, the left power output shaft 20 can slide in 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 normal use is not affected.

[0036] Embodiment 3:

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

[0038] In the 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 sizes of the power transmission gears need to be adjusted.

[0039] In the embodiment, the width of the sliding groove through which the power input shaft 4, the right power output shaft 6, and the left power output shaft 20 pass is slightly larger than the diameter of the shaft, that is, the width of the sliding 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 of the power input shaft power transmission gear and the output shaft power transmission gear are on a straight line, the shaft spacing of the power output shaft is the largest. When the power input shaft is at the top of the sliding groove, the shaft spacing of the power output shaft is the smallest.

Claims

1. A multi-axis stirring transmission device with adjustable axis spacing, characterized in that: It comprises an upper cover plate (1) and a lower cover plate (16) as supporting structures arranged above the stirring tank, 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 via cover plate fixing pillars (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 cross groove I (301) in the center and four strip grooves I (302); the right power output shaft (6) and the left power output shaft (20) respectively pass through two opposite branches of the cross groove I (301), and the two sides of 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 part 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) respectively pass through the other two branches of the cross groove II (1201); The power input shaft (4) is provided with a power input shaft transmission gear (14); the right power output shaft (6) is provided with a right power output shaft transmission gear (10); the left power output shaft (20) is provided with a left power output shaft transmission gear (15); the power input shaft transmission gear (14) is meshed 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 provided with retaining structures respectively; stirring paddles are provided at the lower ends of the right power output shaft (6) and the left power output shaft (20); The upper end of the 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) to change the distance between the stirring paddles.

2. A multi-axis stirring transmission device with adjustable axis spacing according to claim 1, characterized in that: The retaining structure of the right power output shaft (6) comprises 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 with an L-shaped right power output shaft fixing rod (8); the upper end of the right power output shaft fixing rod (8) is inserted into the strip groove I (302) and then screwed into the fixing nut (7); after loosening the fixing nut (7), the right power output shaft (6) can slide in the cross groove I (301), and after tightening the fixing nut (7), the right power output shaft (6) is locked; The retaining structure of the power input shaft (4) comprises 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); both ends of the outer ring of the power input shaft bearing (11) are fixedly connected with L-shaped power input shaft fixing rods (13); the lower end of the power input shaft fixing rod (13) is inserted into the strip groove II (1202) and then 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) comprises 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); both ends of the outer ring of the left power output shaft bearing (18) are fixedly connected with an L-shaped left power output shaft fixing member. Device (19); after the upper end of the left power output shaft fixing device (19) is inserted into 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), and after the fixing nut (7) is tightened, the right power output shaft (6) is locked.

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

4. A multi-axis stirring transmission device with adjustable axis spacing according to claim 1, characterized in that: A stirring paddle is installed at the lower end 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 axis spacing according to claim 1, characterized in that: The width of the slide grooves through which the power input shaft (4), the right power output shaft (6) and the left power output shaft (20) pass is slightly larger than the diameter of the shafts.

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