Coaxial forward and reverse rotation paddle stirrer

Abstract

The utility model relates to the technical field of stirring, and discloses a coaxial positive and negative rotation paddle stirrer which comprises a base, a stirring device, a transmission case, a transmission part, a lifting unit and a protective cover, the stirring device is arranged on one side of the base, an oil cylinder housing is arranged on the other side of the base, the top of the stirring device is connected with the transmission case, and the protective cover is connected between the transmission case and the oil cylinder housing below the transmission case. A lifting unit is arranged on the side, close to the stirring device, in the oil cylinder housing, and the transmission part is arranged in the transmission box. When the device is used, the outer stirring frame and the inner stirring frame in the container rotate in the positive and negative directions, materials can be extruded, turned and mixed, and a plurality of scrapers are arranged on the outer side of the outer stirring frame, so that the mixing and stirring effect of the materials in the container is improved. The power unit is connected with the upper bevel gear, the lower bevel gear and the middle bevel gear, transmission distribution is achieved through meshing connection of the three gears, coaxial rotation of the inner stirring frame and the outer stirring frame connected with the gears in the clockwise direction and the anticlockwise direction is achieved, and the mixing efficiency and quality of materials are improved.

Description

Technical Field

[0001] The utility model relates to the field of stirring, in particular to a coaxial forward and counter-rotating paddle stirrer. Background Art

[0002] The original paddle mixer only has single-axis stirring, and the stirring shaft can only rotate in one direction. The mixed material is single, the mixing efficiency of the material is low, and the mixing quality is poor.

[0003] Patent application publication number CN 218485657U discloses a frame-type automatic pressure-discharging mixer. A stirring device and a hydraulic device are adjacently positioned on a base. The stirring device includes a container and a stirring paddle. A gearbox is positioned between the container and the transmission case. The frame-type stirring paddle is placed within the container, with the top of the stirring paddle close to the top surface of the container. The top of the stirring paddle is an integral stirring shaft mounted within the gearbox via bearings. This frame-type stirring paddle design replaces the existing design with separate shafts and paddles. During processing, the stirring paddle and shaft are integrally formed, enhancing structural strength. Furthermore, a pair of stirring paddles is provided to increase stirring power.

[0004] The agitator in the prior art only has single-shaft stirring, and the agitator shaft can only rotate in one direction, so the mixed material is single and the mixing quality is poor.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide a coaxial forward and counter-rotating paddle mixer, which can extrude, turn and mix materials through the forward and reverse rotation of inner and outer blades, thereby improving the mixing and stirring effect.

[0007] The technical solution adopted in this utility model is:

[0008] The coaxial forward and counter-rotating paddle mixer includes a base, a stirring device, a transmission box, transmission components, a lifting unit, and a protective cover. The stirring device is on one side of the base and a cylinder cover is provided on the other side. The top of the stirring device is connected to the transmission box. A protective cover is connected between the transmission box and the cylinder cover below. A lifting unit is provided on the side of the cylinder cover close to the stirring device, and the transmission components are arranged in the transmission box.

[0009] Preferably, the stirring device is connected to the transmission component at the top through the bearing cavity component above. The stirring device includes a container, a vacuum cover, and a bearing cavity component. The vacuum cover is above the container, and an outer stirring frame and an inner stirring frame are provided inside. The outer stirring frame is sleeved on the outside of the inner stirring frame, and multiple scrapers are provided on the outside of the outer stirring frame. The outer side of the scraper is attached to the inner wall of the container. A thermometer is provided at the bottom of the inner stirring frame, and the tops of the outer stirring frame and the inner stirring frame are both connected to the bottom of the bearing cavity component above.

[0010] By adopting the above structure, when the device is used, the outer stirring frame and the inner stirring frame in the container produce positive and reverse rotation, which can squeeze and turn the material for mixing, thereby improving the mixing and stirring effect.

[0011] Preferably, the bearing cavity component includes an outer frame stirring shaft, an inner frame stirring shaft, and a bearing cavity. The bottom of the inner frame stirring shaft is connected to the top end of the inner stirring frame through a connecting block, a flat key, a gasket, and a bolt. The bottom end of the outer frame stirring shaft is connected to the top of the outer stirring frame through a flat key and a bolt. The bottom of the bearing cavity is connected to the top end of the vacuum cover through a bolt. The top of the bearing cavity is connected to the bottom wall of the transmission box through a bolt.

[0012] Preferably, the outer frame stirring shaft is sleeved outside the inner frame stirring shaft, and the bearing cavity is sleeved on the outer frame stirring shaft. The top end of the connection between the outer frame stirring shaft and the inner frame stirring shaft is fixed in position by an upper inner frame bearing gland. The upper inner frame bearing gland is fixed to the top of the outer frame stirring shaft by a bolt. The bottom end of the connection between the outer frame stirring shaft and the inner frame stirring shaft is fixed in position by a lower inner frame bearing gland. The lower inner frame bearing gland is fixed to the bottom of the outer frame stirring shaft by a bolt. A pressing plate is arranged between the bolt and the lower inner frame bearing gland.

[0013] Preferably, bearings are arranged in the upper and lower inner frame bearing glands. A small bushing is arranged on the inner wall of the lower inner frame bearing gland and is fixed by a clamping screw.

[0014] Preferably, upper and lower outer frame bearing glands are arranged at the top and bottom of the bearing cavity, respectively. Bearings are arranged in the upper and lower outer frame bearing glands. The upper outer frame bearing gland is fixed to the top of the bearing cavity by a hexagonal bolt. The lower outer frame bearing gland is fixed to the bottom of the bearing cavity by a bolt. A pressing plate is arranged between the bolt and the lower outer frame bearing gland. A large bushing is arranged inside the lower outer frame bearing gland and is fixed by a clamping screw.

[0015] By adopting the above structure, the outer frame stirring shaft, the inner frame stirring shaft, and the bearing cavity in the bearing cavity component are connected to the outer stirring frame, the inner stirring frame, and the vacuum cover in the container, respectively. When the device is used, the outer stirring frame and the inner stirring frame can be made to rotate in opposite directions by the reverse rotation of the outer frame stirring shaft and the inner frame stirring shaft, so as to squeeze and turn the material for mixing, thereby making the material in the container more uniformly mixed.

[0016] Preferably, the transmission component includes a gear box, a power unit, an upper bevel gear, a lower bevel gear, and a middle bevel gear arranged in the gear box. The middle bevel gear is meshed and linked with the upper bevel gear and the lower bevel gear, respectively. The middle bevel gear is connected to the rotating shaft of the power unit. The bottom of the gear box is fixed to the bottom of the gear box. A sealing cover is arranged on the outer frame stirring shaft. The top is an upper sealing cover. A maintenance cover is arranged on the side.

[0017] By adopting the above structure, the upper bevel gear, the lower bevel gear and the middle bevel gear are arranged in the gear box, the transmission structure is compact, and the transmission structure is more stable when in use. An inspection cover is provided on the gear box to facilitate inspection and maintenance of the internal devices.

[0018] Preferably, the upper bevel gear is connected to the upper end of the inner frame stirring shaft, and a flat key and a shaft elastic retaining ring are provided at the connection; the lower bevel gear is sleeved on the outer frame stirring shaft, and a flat key and a shaft elastic retaining ring are provided at the connection.

[0019] Preferably, the connection between the rotating shaft of the power unit and the middle bevel gear is fixed to the bearing seat through a bearing cover, the bearing seat is fixed to the transmission box through bolts, and the bearing cover is provided with a bearing and a shaft elastic retaining ring.

[0020] By adopting the above structure, the gear transmission distribution of the upper bevel gear, the lower bevel gear and the middle bevel gear in the device can realize coaxial rotation in both clockwise and counterclockwise directions, thereby increasing the mixing efficiency and quality of the materials.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. When the device of the utility model is used, the outer stirring frame and the inner stirring frame in the container rotate in the forward and reverse directions, which can squeeze, turn and mix the materials, and multiple scrapers are provided on the outside of the outer stirring frame to improve the mixing and stirring effect of the materials in the container.

[0023] 2. The power unit used in the device of the utility model is linked to the upper bevel gear, the lower bevel gear and the middle bevel gear. The transmission distribution is achieved through the meshing connection of the three gears, so that the coaxial clockwise and counterclockwise rotation of the inner and outer stirring frames connected to the gears is realized, thereby increasing the mixing efficiency and quality of the materials. The power unit is connected to the middle bevel gear to provide power, and the middle bevel gear drives the upper bevel gear and the lower bevel gear to rotate. The device has a stable structure, stable transmission and a longer service life.

[0024] 3. The device of the utility model is provided with a bearing cavity component. The bearing cavity, outer frame stirring shaft and inner frame stirring shaft are sequentially sleeved and connected to the stirring device below, driving the inner and outer stirring frames to rotate in opposite directions on the same axis, so as to quickly and evenly stir the materials in the container and improve the mixing efficiency and quality of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 This is a schematic structural diagram of the stirring device of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the transmission component of the utility model;

[0028] Figure 4The utility model discloses a bearing cavity component's structural diagram.

[0029] Wherein: 1, base, 2, container, 3, vacuum cover, 4, bolt, 5, bearing cavity component, 6, temperature detector, 7, transmission case, 8, transmission component, 9, outer stirring frame, 10, lifting unit, 11, protective cover, 12, lower sealing cover, 13, lower bevel gear, 14, flat key, 15, elastic retaining ring for shaft, 16, maintenance cover, 17, gear box, 18, inner stirring frame, 19, upper sealing cover, 20, upper bevel gear, 21, connecting block, 22, oil cylinder cover, 23, middle bevel gear, 24, bearing, 25, gasket, 26, power unit, 27, bearing gland, 28, bearing seat, 29, scraper, 44, upper bearing gland of inner frame, 45, lower bearing gland of inner frame, 46, stirring shaft of outer frame, 47, stirring shaft of inner frame, 48, upper bearing gland of outer frame, 49, inner hexagonal bolt, 50, set screw, 51, bearing cavity, 52, large bushing, 53, lower bearing gland of outer frame, 54, pressing plate, 55, small bushing. DETAILED DESCRIPTION

[0030] As Figure 1-4 Shown, coaxial positive and negative rotation paddle mixer, including base 1, stirring device, transmission case 7, transmission component 8, lifting unit 10, protective cover 11, base 1 one side is stirring device, the other side is equipped with oil cylinder cover 22, stirring device top connection transmission case 7, transmission case 7 is connected with lower oil cylinder cover 22 between protective cover 11, oil cylinder cover 22 is equipped with lifting unit 10 in stirring device one side, the device uses, through the operation of lifting unit 10, drive top transmission case 7 lifting, control transmission case 7 below vacuum cover 3 and the lifting of stirring device, transmission component 8 is located in transmission case 7. Stirring device is connected top transmission component 8 through upper bearing cavity component 5, and stirring device includes container 2, vacuum cover 3, bearing cavity component 5, and the upper side of container 2 is vacuum cover 3, and the inside is equipped with outer stirring frame 9, inner stirring frame 18, and outer stirring frame 9 is sleeved in the outside of inner stirring frame 18, and the outside of outer stirring frame 9 is equipped with a plurality of scrapers 29, and the outside of scraper 29 is attached to the inner wall of container 2, and the bottom end of inner stirring frame 18 is equipped with temperature detector 6, and the top of outer stirring frame 9 and inner stirring frame 18 is connected to the bottom of upper bearing cavity component 5. The device uses, and the outer stirring frame 9 in container 2, inner stirring frame 18 rotates in the positive and negative direction, can extrude and turn over and mix the material, and the outside of outer stirring frame 9 is equipped with a plurality of scrapers 29, and the mixing and stirring effect of the material in container 2 is improved.

[0031] The bearing chamber component 5 includes an outer frame stirring shaft 46, an inner frame stirring shaft 47, and a bearing chamber 51. The bottom of the inner frame stirring shaft 47 is connected to the top of the inner stirring frame 18 through a connecting block 21, a flat key 14, a gasket 25, and a bolt 4. The bottom end of the outer frame stirring shaft 46 is connected to the top of the outer stirring frame 9 through a flat key 14 and a bolt 4. The bottom of the bearing chamber 51 is connected to the top of the vacuum cover 3 through a bolt 4, and the top of the bearing chamber 51 is connected to the bottom box wall of the transmission box 7 through a bolt 4. The outer frame stirring shaft 46 is sleeved on the outside of the inner frame stirring shaft 47, and the bearing cavity 51 is sleeved on the outer frame stirring shaft 46. The top of the connection between the outer frame stirring shaft 46 and the inner frame stirring shaft 47 is fixed in position by the inner frame upper bearing pressure cover 44, and the inner frame upper bearing pressure cover 44 is fixed to the top of the outer frame stirring shaft 46 by bolts 4. The bottom end of the connection between the outer frame stirring shaft 46 and the inner frame stirring shaft 47 is fixed in position by the inner frame lower bearing pressure cover 45, and the inner frame lower bearing pressure cover 45 is fixed to the bottom of the outer frame stirring shaft 46 by bolts 4. A pressure plate 54 is provided between the bolts 4 and the inner frame lower bearing pressure cover 45. Bearings 24 are provided in both the inner frame upper bearing pressure cover 44 and the inner frame lower bearing pressure cover 45. A small bushing 55 is provided on the inner wall of the inner frame lower bearing pressure cover 45, and the small bushing 55 is fixed by a set screw 50. The top and bottom of the bearing cavity 51 are respectively provided with an outer frame upper bearing cover 48 and an outer frame lower bearing cover 53. Both the outer frame upper bearing cover 48 and the outer frame lower bearing cover 53 contain bearings 24. The outer frame upper bearing cover 48 is fixed to the top of the bearing cavity 51 by a hexagon socket bolt 49, and the outer frame lower bearing cover 53 is fixed to the bottom of the bearing cavity 51 by a bolt 4. A pressure plate 54 is provided between the bolt 4 and the outer frame lower bearing cover 53. A large bushing 52 is provided inside the outer frame lower bearing cover 53 and is secured by a set screw 50. The device is provided with a bearing cavity component 5. The bearing cavity 51, the outer frame stirring shaft 46, and the inner frame stirring shaft 47 are sequentially sleeved and connected to the stirring device below, driving the inner and outer stirring frames to rotate in opposite directions on the same axis, facilitating rapid and uniform stirring of the material in the container 2, thereby improving the mixing efficiency and quality of the material.

[0032] The transmission component 8 includes a gear box 17, a power unit 26, and an upper bevel gear 20, a lower bevel gear 13, and a middle bevel gear 23 provided in the gear box 17. The middle bevel gear 23 is meshed and linked with the upper bevel gear 20 and the lower bevel gear 13 respectively. The middle bevel gear 23 is connected to the rotating shaft of the power unit 26. The bottom of the gear box 17 is fixed to the bottom of the gear box 7. The bottom is sleeved on the outer frame stirring shaft 46 and a sealing cover 12 is provided. The top is an upper sealing cover 19, and an inspection cover 16 is provided on the side. The upper bevel gear 20 is connected to the upper end of the inner frame stirring shaft 47, and a flat key 14 and a shaft elastic circlip 15 are provided at the connection. The lower bevel gear 13 is sleeved on the outer frame stirring shaft 46 and a flat key 14 and a shaft elastic circlip 15 are provided at the connection. The connection between the rotating shaft of the power unit 26 and the middle bevel gear 23 is fixed to the bearing seat 28 via a bearing gland 27. The bearing seat 28 is fixed to the transmission case 7 via bolts 4. The bearing gland 27 is provided with a bearing 24 and a shaft elastic circlip 15. The power unit 26 is linked to the upper bevel gear 20, the lower bevel gear 13, and the middle bevel gear 23. Through the meshing connection of the three gears, the transmission distribution is achieved, and the coaxial clockwise and counterclockwise rotation of the inner and outer mixing frames connected to the gears is achieved, thereby increasing the mixing efficiency and quality of the materials. In addition, the power unit 26 is connected to the middle bevel gear 23 to provide power, and the middle bevel gear 23 drives the upper bevel gear 20 and the lower bevel gear 13 to rotate. The device has a stable structure, stable transmission, and a longer service life.

[0033] When the device is in use, the power unit 26 drives the middle bevel gear 23 to rotate clockwise. The middle bevel gear 23, through the gear rotation meshing, drives the upper bevel gear 20 to rotate counterclockwise and the lower bevel gear 13 to rotate clockwise, respectively. One power output generates movement in both positive and negative directions. The upper bevel gear 20 drives the inner frame stirring shaft 47 to rotate counterclockwise via the flat key 21. The lower bevel gear 13 drives the outer frame stirring shaft 46 to rotate clockwise via the flat key 14. The inner frame stirring shaft 47 drives the connecting block 21 to rotate via the flat key 36. The connecting block 21 is sleeved on one end of the inner frame stirring shaft 47 and is locked with the bolt 39 via the gasket 25. The inner stirring frame 18 is locked with the connecting block 21 via the bolt 4, so that the connecting block 21 drives the inner stirring frame 18 to stir counterclockwise. The outer frame stirring shaft 46 drives the outer stirring frame 9 to rotate clockwise via the flat key 34. At the same time, a thermometer 6 is installed at the bottom of the inner stirring frame 18 to monitor the material temperature in real time.

[0034] The embodiments described above are merely descriptions of preferred implementation methods of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made by technical personnel in this field to the technical solution of the present invention should be included in the scope of protection determined by the claims of the present invention.

Claims

1. A coaxial forward and counter-rotating paddle mixer, comprising a base, a stirring device, a transmission box, transmission components, a lifting unit, and a protective cover, characterized by: The base has a stirring device on one side and a cylinder cover on the other side. The top of the stirring device is connected to a transmission box. A protective cover is connected between the transmission box and the lower cylinder cover. A lifting unit is provided in the cylinder cover on the side close to the stirring device, and the transmission components are arranged in the transmission box.

2. The coaxial forward and counter-rotating paddle mixer according to claim 1, characterized in that: The stirring device is connected to the transmission component on the top through the bearing cavity component above. The stirring device includes a container, a vacuum cover, and a bearing cavity component. The vacuum cover is located above the container, and an outer stirring frame and an inner stirring frame are provided inside. The outer stirring frame is sleeved on the outside of the inner stirring frame, and multiple scrapers are provided on the outside of the outer stirring frame. The outer side of the scraper is attached to the inner wall of the container. A thermometer is provided at the bottom of the inner stirring frame, and the tops of the outer stirring frame and the inner stirring frame are both connected to the bottom of the bearing cavity component above.

3. The coaxial forward and counter-rotating paddle mixer according to claim 2, characterized in that: The bearing cavity component includes an outer frame stirring shaft, an inner frame stirring shaft, and a bearing cavity. The bottom of the inner frame stirring shaft is connected to the top of the inner stirring frame through a connecting block, a flat key, a gasket, and a bolt. The bottom end of the outer frame stirring shaft is connected to the top of the outer stirring frame through a flat key and bolts. The bottom of the bearing cavity is connected to the top of the vacuum cover through bolts, and the top of the bearing cavity is connected to the bottom box wall of the transmission box through bolts.

4. The coaxial forward and counter-rotating paddle mixer according to claim 3, characterized in that: The outer frame stirring shaft is sleeved on the outside of the inner frame stirring shaft, the bearing cavity is sleeved on the outer frame stirring shaft, the top end of the connection between the outer frame stirring shaft and the inner frame stirring shaft is fixed in position by the inner frame upper bearing pressure cover, the inner frame upper bearing pressure cover is fixed to the top of the outer frame stirring shaft by bolts, the bottom end of the connection between the outer frame stirring shaft and the inner frame stirring shaft is fixed in position by the inner frame lower bearing pressure cover, the inner frame lower bearing pressure cover is fixed to the bottom of the outer frame stirring shaft by bolts, and a pressure plate is provided between the bolts and the inner frame lower bearing pressure cover.

5. The coaxial forward and counter-rotating paddle mixer according to claim 4, characterized in that: The inner frame upper bearing cover and the inner frame lower bearing cover are both provided with bearings, and the inner wall of the inner frame lower bearing cover is provided with a small bushing, which is fixed by a set screw.

6. The coaxial forward and counter-rotating paddle mixer according to claim 3, characterized in that: The top and bottom of the bearing cavity are respectively provided with an outer frame upper bearing cover and an outer frame lower bearing cover, and bearings are provided in the outer frame upper bearing cover and the outer frame lower bearing cover. The outer frame upper bearing cover is fixed to the top of the bearing cavity by an inner hexagonal bolt, and the outer frame lower bearing cover is fixed to the bottom of the bearing cavity by bolts. A pressure plate is provided between the bolts and the outer frame lower bearing cover, and a large bushing is provided inside the outer frame lower bearing cover, which is fixed by a set screw.

7. The coaxial forward and counter-rotating paddle mixer according to claim 2, characterized in that: The transmission components include a gear box, a power unit, and an upper bevel gear, a lower bevel gear, and a middle bevel gear arranged in the gear box. The middle bevel gear is respectively engaged with the upper bevel gear and the lower bevel gear. The middle bevel gear is connected to the rotating shaft of the power unit. The bottom of the gear box is fixed to the bottom of the gear box, and a sealing cover is provided on the bottom of the outer frame stirring shaft. The sealing cover is provided on the top, the upper sealing cover is provided, and an inspection cover is provided on the side.

8. The coaxial forward and counter-rotating paddle mixer according to claim 7, characterized in that: The upper bevel gear is connected to the upper end of the inner frame stirring shaft, and a flat key and a shaft elastic retaining ring are provided at the connection; the lower bevel gear is sleeved on the outer frame stirring shaft, and a flat key and a shaft elastic retaining ring are provided at the connection.

9. The coaxial forward and counter-rotating paddle mixer according to claim 7, characterized in that: The connection between the rotating shaft of the power unit and the middle bevel gear is fixed to the bearing seat through a bearing cover, and the bearing seat is fixed to the transmission box through bolts. The bearing cover is provided with a bearing and a shaft elastic retaining ring.

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