Permanent magnetic direct-driven stirrer capable of quickly adjusting blade angle
By using the active and driven bevel gear meshing structure and bushing bolt connection of the permanent magnet direct drive agitator, the problem of low blade angle adjustment efficiency is solved, enabling rapid and stable slurry mixing and equipment operation, and improving mixing efficiency and equipment stability.
Patent Information
- Application Number
- CN202520345891.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing agitators are inefficient when adjusting the blade angle, resulting in reduced mixing efficiency. This is especially true when the slurry concentration changes, making operation difficult and affecting the mixing effect.
It adopts a permanent magnet direct drive structure, and achieves rapid adjustment of blade angle through the meshing of active and driven helical bevel teeth and the use of bushings and bolts to avoid disassembling the blades. Combined with the direct drive of the transmission shaft by the permanent magnet motor, the adjustment process is simplified.
It enables rapid and stable adjustment of the blade angle, improves mixing efficiency, ensures uniform slurry mixing and equipment stability, and reduces maintenance frequency and cost.
Smart Images
Figure CN223874903U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of stirrers, in particular to a permanent magnet direct drive type stirrer capable of quickly adjusting the angle of blades. BACKGROUND
[0002] In the existing stirrer, a V-belt transmission structure is usually used, the blades and a large belt wheel are installed on both ends of a transmission shaft, a motor drives a small belt wheel, force is transmitted to the large belt wheel through a belt, and then the blades driven by the transmission shaft are mixed with slurry.
[0003] However, due to different concentrations of slurry, the angle of the blades needs to be frequently changed at this time, so as to increase different linear velocities and better stir the slurry, which requires emptying the slurry pool, disassembling the stirring paddle from the transmission shaft, and then adjusting the angle of the blades, which is difficult to operate and reduces the efficiency of stirring the slurry to some extent. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a permanent magnet direct drive type stirrer capable of quickly adjusting the angle of blades, solving the problem of low efficiency of adjusting the angle of blades, and improving the efficiency of stirring the slurry.
[0005] The utility model realizes the above-mentioned purpose through the following technical scheme:
[0006] A permanent magnet direct drive type stirrer capable of quickly adjusting the angle of blades, comprising a stirring paddle and a transmission shaft rotatably arranged on a box body, wherein the stirring paddle comprises a mounting seat arranged at the end of the transmission shaft, a plurality of blades are rotatably connected to the mounting seat, the end of each blade is provided with a driven bevel gear, a driving bevel gear is rotatably connected to the mounting seat, the driving bevel gear is simultaneously meshed with the plurality of driven bevel gears, the end of the driving bevel gear is provided with a shaft sleeve rotatably connected with the transmission shaft, the end of the shaft sleeve extends to the outside of the mounting seat, and a first outer hexagonal nut is arranged on the end of the shaft sleeve.
[0007] Further, a first bolt is threadedly connected to the shaft sleeve, a plurality of fixing grooves are arranged on the transmission shaft, the end of the first bolt is in contact with the fixing grooves, and the shaft sleeve is limited to rotate on the transmission shaft.
[0008] Further, a threaded sleeve threadedly connected with the first bolt is detachably arranged on the shaft sleeve.
[0009] Further, a sliding sleeve is slidably connected to the transmission shaft, the end of the sliding sleeve is provided with a plurality of protrusions, the end of the shaft sleeve and the transmission shaft are respectively provided with a plurality of first grooves and second grooves slidably connected with the protrusions, the two sides of the protrusions are simultaneously in contact with the first grooves and the second grooves, and the shaft sleeve is limited to rotate on the transmission shaft.
[0010] Further, the transmission shaft is threadedly connected with a fixing sleeve, the end of the fixing sleeve is provided with an L-shaped block, the sleeve is provided with an L-shaped slot in rotation connection with the L-shaped block, the two sides of the L-shaped block are in contact with the L-shaped slot respectively, and the fixing sleeve is provided with a second outer hexagonal nut.
[0011] Further, the end of the convex block is provided with an inclined surface in contact with the first groove.
[0012] Further, the outside of the box body is provided with a permanent magnet motor, and the movable end of the permanent magnet motor is connected with the transmission shaft.
[0013] Further, the end of the mounting seat is provided with an access hole, the access hole is slidably connected with an access plate and a gland, the access plate is provided with a second bolt in thread connection with the transmission shaft, the gland is provided with a third bolt in thread connection with the access plate, and the mounting seat is provided with a first sealing strip and a second sealing strip in contact with the access plate and the gland respectively.
[0014] Compared with the prior art, the utility model has the advantages of:
[0015] 1. When the stirring paddle is needed, the transmission shaft is rotated on the box body to drive the stirring to rotate in the box body, and the rotation of the stirring blade generates mechanical force, so that the waste paper, water and chemical agents in the pulping equipment are fully mixed and rubbed and impacted with each other, the fiber is dissociated, the pulping efficiency is improved, the pulping time is shortened, the water and the chemical agents (such as deinking agent, dispersing agent, etc.) are uniformly contacted with the waste paper fiber, the chemical agents can better play a role, the consistency of the subsequent treatment effect is ensured, for example, in the deinking process, the agents are uniformly distributed to effectively remove the ink, in addition, the fiber can be kept in a suspended and dispersed state, the gravity effect is avoided, the equipment is prevented from being blocked or the pulping being uneven, and the material in the pulping equipment is ensured to be in a good running state.
[0016] 2. When the concentration of the stirred pulp changes, the pulp in the box body is discharged, the first outer hexagonal nut is rotated by a wrench, the transmission torque is matched with the shaft sleeve, the driving bevel gear is driven to rotate on the mounting seat, since the driving bevel gear is in mesh with a plurality of driven bevel gears, the plurality of driven bevel gears are driven to rotate on the mounting seat at the same time, so that the angles of the plurality of blades on the mounting seat are adjusted at the same time, the linear speed of the stirring paddle is changed, the stirring demand of different paddles is met, the stirring effect of different paddles is improved, the paddle does not need to be disassembled from the transmission shaft, the angle of the blade is adjusted at the same time, the step of adjusting the blade is simplified, the efficiency of adjusting the blade is improved, and the efficiency of stirring the paddle is improved.
[0017] 3. The shaft sleeve is rotatably connected with the transmission shaft, plays a guiding role on the rotation of the driving bevel gear on the mounting seat, avoids the deviation of the driving bevel gear from the track and influences the stability of the whole structure, thereby reducing the frequency of maintaining the stirring paddle and improving the stirring efficiency of the paddle material. BRIEF DESCRIPTION OF DRAWINGS
[0018] BRIEF DESCRIPTION OF DRAWINGS Figure 1 is a structural schematic view of the transmission shaft of the utility model.
[0019] BRIEF DESCRIPTION OF DRAWINGS Figure 2 is a structural schematic view of the blade of the utility model.
[0020] BRIEF DESCRIPTION OF DRAWINGS Figure 3 is a structural schematic view of the driven bevel gear and the driving bevel gear of the utility model.
[0021] BRIEF DESCRIPTION OF DRAWINGS Figure 4 is a structural schematic view of the first bolt of the utility model.
[0022] BRIEF DESCRIPTION OF DRAWINGS Figure 5 is a structural schematic view of the sliding sleeve of the utility model.
[0023] BRIEF DESCRIPTION OF DRAWINGS Figure 6 is a structural schematic view of the sliding sleeve and the fixed sleeve of the utility model.
[0024] BRIEF DESCRIPTION OF DRAWINGS Figure 7 is a structural schematic view of the L-shaped block of the utility model.
[0025] BRIEF DESCRIPTION OF DRAWINGS Figure 8 is a partial enlarged view of the A part in the utility model Figure 2 BRIEF DESCRIPTION OF DRAWINGS
[0026] Reference numerals in the drawings:
[0027] 1, box body; 2, transmission shaft; 3, mounting seat; 4, blade; 5, driven bevel gear; 6, driving bevel gear; 7, shaft sleeve; 8, first outer hexagonal nut;
[0028] 9, first bolt; 10, fixed groove; 11, threaded sleeve; 12, sliding sleeve; 13, protruding block; 14, first recess; 15, second recess; 16, fixed sleeve; 17, L-shaped block; 18, L-shaped groove; 19, second outer hexagonal nut; 20, inclined surface; 21, permanent magnet motor; 22, access hole; 23, access plate; 24, gland; 25, second bolt; 26, third bolt; 27, first sealing strip; 28, second sealing strip. DETAILED DESCRIPTION
[0029] The utility model is further described below in combination with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms are also within the scope defined by the present application.
[0030] A kind of permanent magnet direct drive type stirrer of fast adjustable blade angle, as shown in Figures 1-3 The utility model discloses a kind of permanent magnet direct drive type stirrer of fast adjustable blade angle, as shown in Fig. 1, including stirring paddle and rotating setting transmission shaft 2 on box 1, the stirring paddle includes the mounting seat 3 of setting transmission shaft 2 end, by transmission shaft 2 on box 1 rotation, drive stirring will rotate in box 1, and by the rotation of stirring blade 4, produce mechanical action force, make waste paper, water and chemical reagent etc. in pulping equipment fully mix and mutually rub, impact, accelerate fiber dissociation, improve pulping efficiency, shorten pulping time;Simultaneously let water, chemical auxiliary agent (such as deinking agent, dispersing agent etc.) and waste paper fiber evenly contact, make chemical reagent better play role, guarantee the consistency of subsequent processing effect, for example, in the deinking process, reagent evenly distributed can effectively remove ink;In addition, can make fiber keep suspended dispersion state, avoid due to gravity sedimentation in equipment bottom, cause equipment blockage or pulping uneven, ensure that the material in pulping equipment is in good running state, the mounting seat 3 is rotatably connected with a plurality of blades 4, the end of the blade 4 is provided with a driven bevel gear 5, the mounting seat 3 is rotatably connected with a driving bevel gear 6, the driving bevel gear 6 is engaged with a plurality of driven bevel gears 5 simultaneously, the end of the driving bevel gear 6 is provided with a shaft sleeve 7 rotatably connected with the transmission shaft 2, the end of the shaft sleeve 7 extends to the outside of the mounting seat 3, and is provided with a first outer hexagonal nut 8, when the concentration of the pulp to be stirred changes, the pulp in the box 1 is discharged, the first outer hexagonal nut 8 is rotated by spanner, and the transmission torque of the shaft sleeve 7 is matched to drive the driving bevel gear 6 to rotate on the mounting seat 3, since the driving bevel gear 6 is engaged with a plurality of driven bevel gears 5 simultaneously, a plurality of driven bevel gears 5 are driven to rotate on the mounting seat 3 simultaneously, so as to simultaneously adjust the angle of a plurality of blades 4 on the mounting seat 3, change the linear velocity of the pulp to be stirred by the stirring paddle, and then meet the stirring requirements of different pulps, improve the effect of stirring different pulps;In addition, the stirring paddle does not need to be disassembled from the transmission shaft 2, the angle of the blade 4 can be adjusted, and the angle of the blade 4 does not need to be adjusted separately, so as to simplify the steps of adjusting the blade 4, improve the efficiency of adjusting the blade 4, and then improve the efficiency of stirring the pulp;In addition, the driving bevel gear 6 is rotatably connected with the transmission shaft 2 through the shaft sleeve 7, which plays a guiding role in the rotation of the driving bevel gear 6 on the mounting seat 3, avoids the deviation of the trajectory from affecting the stability of the overall structure, reduces the frequency of maintaining the stirring paddle, and improves the efficiency of stirring the pulp.
[0031] Preferably, as Figure 2 AndFigure 4 As shown in the figure, the first bolt 9 is threadedly connected to the shaft sleeve 7, the transmission shaft 2 is provided with a plurality of fixing grooves 10, the end of the first bolt 9 is in contact with the fixing groove 10, and the rotation of the shaft sleeve 7 on the transmission shaft 2 is limited. After the angle of the slurry is adjusted, the first screw is rotated on the shaft sleeve 7. Since the first screw is threadedly connected to the shaft sleeve 7, it is driven to move on the shaft sleeve 7 until the end of the first bolt 9 slides into the corresponding fixing groove 10. The resistance generated by the contact between the end of the first bolt 9 and the fixing groove 10 limits the rotation of the shaft sleeve 7 on the transmission shaft 2, thereby limiting the rotation of the driving bevel gear 6 on the mounting seat 3. Unintentional driving of the driving bevel gear 6 on the mounting seat 3 by external force is avoided, the angle of the blade 4 on the mounting seat 3 is changed, and the linear speed of the stirring paddle applied to the slurry is always maintained in a stable range, thereby improving the stirring effect on the slurry.
[0032] Preferably, as shown in Figure 4 the figure, the shaft sleeve 7 is detachably provided with a threaded sleeve 11 threadedly connected to the first bolt 9. When the threads on the threaded sleeve 11 fail, the stability of the fixing driving bevel gear 6 can be ensured by replacing the threaded sleeve 11, without the need to replace the entire driving bevel gear 6, thereby reducing the cost of maintaining the stirring paddle.
[0033] Preferably, as shown in Figure 5 , Figure 6 and Figure 7 the figure, the transmission shaft 2 is slidably connected with a sliding sleeve 12, the end of the sliding sleeve 12 is provided with a plurality of protrusions 13, and the end of the shaft sleeve 7 and the transmission shaft 2 are respectively provided with a plurality of first grooves 14 and second grooves 15 slidably connected with the protrusions 13. The two sides of the protrusions 13 are in contact with the first grooves 14 and the second grooves 15 at the same time, and the rotation of the shaft sleeve 7 on the transmission shaft 2 is limited. After the angle of the blade 4 is adjusted, the sliding sleeve 12 is moved to the left on the transmission shaft 2 until the inclined surface 20 provided at the end of the protrusion 13 is in contact with the first groove 14. The resulting component force drives the shaft sleeve 7 to rotate slightly, allowing the protrusion 13 to smoothly enter the first groove 14. The resistance generated by the contact between the protrusion 13 and the first groove 14 and the second groove 15 limits the rotation of the sliding sleeve 12 on the transmission shaft 2, thereby limiting the rotation of the driving bevel gear 6 on the mounting seat 3. Unintentional driving of the driving bevel gear 6 on the mounting seat 3 by external force is avoided, the angle of the blade 4 on the mounting seat 3 is changed, and the linear speed of the stirring paddle applied to the slurry is always maintained in a stable range, thereby improving the stirring effect on the slurry.
[0034] Preferably, as shown in Figure 5 , Figure 6 and Figure 7As shown, the transmission shaft 2 is threadedly connected with a fixing sleeve 16, the end of the fixing sleeve 16 is provided with an L-shaped block 17, the sliding sleeve 12 is provided with an L-shaped groove 18 which is rotatably connected with the L-shaped block 17, the two sides of the L-shaped block 17 are respectively in contact with the L-shaped groove 18, the fixing sleeve 16 is provided with a second outer hexagonal nut 19, the second outer hexagonal nut 19 is driven to rotate by a handle, the fixing sleeve 16 is driven to rotate on the transmission shaft 2, since the fixing sleeve 16 is threadedly connected with the transmission shaft 2, the fixing sleeve 16 is driven to slide on the transmission shaft 2, and the sliding sleeve 12 is driven to slide on the transmission shaft 2 through the contact between the L-shaped block 17 and the L-shaped groove 18, and the cooperation of the convex block 13, the first recess 14 and the second recess 15, the fixing of the blade 4 is released, so as to adjust the linear velocity of the stirring paddle applied to the slurry, and improve the stirring effect on the slurry; or realize the fixation of the angle of the blade 4, avoid the unintentional driving of the driving bevel gear 6 on the mounting seat 3 by external force, change the angle of the blade 4 on the mounting seat 3, so as to ensure that the linear velocity of the stirring paddle applied to the slurry is always maintained in a stable interval, and improve the stirring effect on the slurry.
[0035] Preferably, as shown in Figure 5 , Figure 6 and Figure 7 , the end of the convex block 13 is provided with an inclined surface 20 which is in contact with the first recess 14, the inclined surface 20 provided at the end of the convex block 13 is in contact with the first recess 14, a resultant force is generated to drive the sleeve 7 to rotate slightly, so that the convex block 13 smoothly enters into the first recess 14, the fixation of the sliding sleeve 12 is realized, the unintentional driving of the driving bevel gear 6 on the mounting seat 3 by external force is avoided, the angle of the blade 4 on the mounting seat 3 is changed, so as to ensure that the linear velocity of the stirring paddle applied to the slurry is always maintained in a stable interval, and improve the stirring effect on the slurry.
[0036] Preferably, as shown in Figure 1 , the outer side of the box body 1 is provided with a permanent magnet motor 21, the movable end of the permanent magnet motor 21 is connected with the transmission shaft 2, the transmission shaft 2 is directly driven to rotate by the permanent magnet motor 21, the use of a belt to transmit torque is avoided, the cost required for maintaining the transmission device is reduced, and the transmission efficiency is improved.
[0037] Preferably, as shown in Figure 2 and Figure 8As shown, the end of the mounting seat 3 is provided with an access hole 22, through which a plurality of driving bevel gears 6 and driven bevel gears 5 are accessed; the access hole 22 is slidably connected with an access plate 23 and a gland 24, the access plate 23 is provided with a second bolt 25 threadedly connected with the transmission shaft 2, the gland 24 is provided with a third bolt 26 threadedly connected with the access plate 23, the mounting seat 3 is respectively provided with a first sealing strip 27 and a second sealing strip 28 in contact with the access plate 23 and the gland 24, by tightening the second bolt 25 on the access plate 23, since the second bolt 25 is threadedly connected with the transmission shaft 2, the second bolt 25 is in contact with the access plate 23 through the second screw, which drives the access plate 23 to slide on the mounting seat 3 until the access plate 23 is in contact with the first sealing strip 27, realizing the first sealing at the access hole 22, then the third bolt 26 on the gland 24 is tightened, since the third bolt 26 is threadedly connected with the mounting seat 3, the gland 24 is moved on the mounting seat 3 until the gland 24 is in contact with the second sealing strip 28, realizing the second sealing at the access hole 22, thereby avoiding the pulp into the mounting seat 3, ensuring the stable meshing relationship between the driving bevel gears 6 and the driven bevel gears 5, reducing the time required for maintaining the stirring paddle, and improving the efficiency of the stirring paddle.
[0038] Example 1
[0039] The utility model provides a kind of permanent magnet direct drive type stirrer of fast adjustable blade angle, as shown in Figures 1-3 As shown, when needing to stir paddle, transmission shaft 2 is rotated on box 1, drives stirring to rotate in box 1, and by the rotation of stirring blade 4, mechanical action is generated, so that waste paper, water and chemical reagent etc. in pulping equipment are fully mixed and rub against each other, impact, accelerate fiber dissociation, improve pulping efficiency, shorten pulping time;At the same time, water, chemical auxiliary agent (such as deinking agent, dispersing agent etc.) and waste paper fiber are uniformly contacted, so that chemical reagent can better play a role, ensure the consistency of subsequent processing effect, for example, in the deinking process, reagent uniform distribution can effectively remove ink;In addition, fiber can keep suspended and dispersed state, avoid sedimentation in the bottom of equipment due to gravity, cause equipment blockage or uneven pulping, ensure that material in pulping equipment is in good running state;
[0040] When the concentration of the stirred slurry changes, the slurry in the box 1 is discharged, the first outer hexagonal nut 8 is turned by a wrench, the transmission torque is matched with the shaft sleeve 7, the driving bevel gear 6 is driven to rotate on the mounting seat 3, since the driving bevel gear 6 is simultaneously engaged with a plurality of driven bevel gears 5, the plurality of driven bevel gears 5 are simultaneously driven to rotate on the mounting seat 3, thereby simultaneously adjusting the angle of the plurality of blades 4 on the mounting seat 3, changing the linear speed of the stirring paddle for the slurry, and further meeting the stirring requirements of different slurry, improving the stirring effect of different slurry. In addition, without disassembling the stirring paddle from the transmission shaft 2, the adjustment of the blade 4 can be realized, and the angle of the blade 4 also does not need to be adjusted one by one, thereby simplifying the steps of adjusting the blade 4, improving the efficiency of adjusting the blade 4, and further improving the efficiency of stirring the slurry. In addition, the shaft sleeve 7 is rotationally connected with the transmission shaft 2, which plays a guiding role in the rotation of the driving bevel gear 6 on the mounting seat 3, avoids the deviation of the trajectory from affecting the stability of the overall structure, thereby reducing the frequency of maintaining the stirring paddle, and improving the stirring efficiency of the slurry.
[0041] Example 2
[0042] On the basis of example 1, as shown in Figure 2 and Figure 4 After adjusting the angle of the slurry, the first screw on the shaft sleeve 7 is rotated, since the first screw is threadedly connected with the shaft sleeve 7, the first screw is driven to move on the shaft sleeve 7 until the end of the first bolt 9 slides into the corresponding fixed groove 10, the resistance generated by the contact between the end of the first bolt 9 and the fixed groove 10 will limit the rotation of the shaft sleeve 7 on the transmission shaft 2, thereby limiting the rotation of the driving bevel gear 6 on the mounting seat 3, avoiding the driving of the driving bevel gear 6 on the mounting seat 3 by external force, changing the angle of the blade 4 on the mounting seat 3, thereby ensuring that the linear speed of the stirring paddle applied to the slurry is always maintained in a stable range, and improving the stirring effect of the slurry.
[0043] In addition, the shaft sleeve 7 is detachably provided with a threaded sleeve 11 threadedly connected with the first bolt 9, when the threads on the threaded sleeve 11 fail, the stability of the driving bevel gear 6 can be ensured by replacing the threaded sleeve 11, without replacing the entire driving bevel gear 6, thereby reducing the cost of maintaining the stirring paddle.
[0044] Example 3
[0045] On the basis of example 1, as shown in Figure 5 , Figure 6 and Figure 7As shown, when the angle of the blade 4 needs to be adjusted, the second outer hexagonal nut 19 is driven to rotate by the handle, driving the fixed sleeve 16 to rotate counterclockwise on the transmission shaft 2. Since the fixed sleeve 16 is threadedly connected with the transmission shaft 2, it will drive the fixed sleeve 16 to move to the right on the transmission shaft 2. At the same time, the two sides of the L-shaped block 17 are in contact with the L-shaped groove 18, and the resulting component force drives the sliding sleeve 12 to slide on the transmission shaft 2, so that the protrusion 13 provided at the end of the sliding sleeve 12 slides out of the first recess 14, releasing the restriction of the driving bevel gear 6 rotating on the transmission shaft 2. Then, the first outer hexagonal nut 8 is rotated using a wrench, and the torque is transmitted through the shaft sleeve 7, driving the driving bevel gear 6 to rotate on the transmission shaft 2, cooperating with the driven bevel gears 5 to transmit torque, and adjusting the angle of the blades 4 on the mounting seat 3, thereby adjusting the linear velocity of the stirring paddle on the slurry and improving the stirring effect on the slurry.
[0046] After adjusting the angle of the blade 4, the second outer hexagonal nut 19 is driven to rotate by the handle, driving the fixed sleeve 16 to rotate clockwise on the transmission shaft 2. Since the fixed sleeve 16 is threadedly connected with the transmission shaft 2, it will drive the fixed sleeve 16 to move to the left on the transmission shaft 2. Through the cooperation of the L-shaped block 17 and the L-shaped groove 18, the sliding sleeve 12 is driven to move to the left on the transmission shaft 2, until the inclined surface 20 provided at the end of the protrusion 13 is in contact with the first recess 14, generating a component force to drive the shaft sleeve 7 to rotate slightly, so that the protrusion 13 smoothly enters the first recess 14, and the protrusion 13 is in contact with the first recess 14 and the second recess 15 at the same time, generating resistance to restrict the rotation of the sliding sleeve 12 on the transmission shaft 2, thereby restricting the rotation of the driving bevel gear 6 on the mounting seat 3, avoiding the driving bevel gear 6 from being unintentionally driven to rotate on the mounting seat 3, changing the angle of the blade 4 on the mounting seat 3, thereby ensuring that the linear velocity of the stirring paddle on the slurry always maintains in a stable interval, improving the stirring effect on the slurry.
[0047] In addition, the L-shaped block 17 is rotatably connected with the L-shaped groove 18, cooperating with the protrusion 13 slidingly arranged on the first recess 14, to avoid the rotation of the fixed sleeve 16 driving the sliding sleeve 12 to rotate and affecting the angle of the blade 4, thereby improving the efficiency of adjusting the blade 4 and ensuring that the linear velocity of the stirring paddle on the slurry always maintains in a stable interval, improving the stirring effect on the slurry.
[0048] Example 4
[0049] Based on Example 1, as shown in Figure 2 and Figure 8 the driving bevel gears 6 and the driven bevel gears 5 can be repaired through the access opening 22;
[0050] After the maintenance is completed, the second bolt 25 on the maintenance plate 23 is tightened, the second bolt 25 is in threaded connection with the transmission shaft 2, the second bolt 25 is in contact with the maintenance plate 23 through the second screw, the maintenance plate 23 is driven to slide on the mounting seat 3, until the maintenance plate 23 is in contact with the first sealing strip 27, the first sealing of the maintenance opening 22 is realized, then the third bolt 26 on the gland 24 is tightened, the third bolt 26 is in threaded connection with the mounting seat 3, the gland 24 is driven to move on the mounting seat 3, until the gland 24 is in contact with the second sealing strip 28, the second sealing of the maintenance opening 22 is realized, so that the paddle material is prevented from entering into the mounting seat 3, the stable meshing relationship of the driving bevel gear 6 and the driven bevel gear 5 is ensured, the time required for maintaining the stirring paddle is reduced, and the efficiency of the stirring paddle material is improved.
Claims
1. A permanent magnet direct drive type mixer with fast adjustable blade angle, comprising a stirring paddle and a transmission shaft (2) rotatably arranged on a box body (1), the stirring paddle comprising a mounting seat (3) arranged at the end of the transmission shaft (2), characterized in that: The mounting base (3) is rotatably connected with a plurality of blades (4), the end of the blade (4) is provided with a driven bevel gear (5), the mounting base (3) is rotatably connected with a driving bevel gear (6), the driving bevel gear (6) is meshed with a plurality of driven bevel gears (5), the end of the driving bevel gear (6) is provided with a shaft sleeve (7) rotatably connected with the transmission shaft (2), the end of the shaft sleeve (7) extends to the outside of the mounting base (3), and a first outer hexagonal nut (8) is arranged.
2. The permanent magnet direct drive stirrer with fast adjustable blade angle according to claim 1, characterized in that: The shaft sleeve (7) is threadedly connected with a first bolt (9), the transmission shaft (2) is provided with a plurality of fixing grooves (10), the end of the first bolt (9) is in contact with the fixing groove (10), and the rotation of the shaft sleeve (7) on the transmission shaft (2) is limited.
3. The permanent magnet direct drive stirrer with fast adjustable blade angle according to claim 2, characterized in that: The shaft sleeve (7) is detachably provided with a threaded sleeve (11) threadedly connected with the first bolt (9).
4. The permanent magnet direct drive stirrer with fast adjustable blade angle according to claim 1, characterized in that: The transmission shaft (2) is slidably connected with a sliding sleeve (12), the end of the sliding sleeve (12) is provided with a plurality of protrusions (13), the end of the shaft sleeve (7) and the transmission shaft (2) are respectively provided with a plurality of first grooves (14) and second grooves (15) slidably connected with the protrusions (13), the two sides of the protrusions (13) are in contact with the first grooves (14) and the second grooves (15) at the same time, and the rotation of the shaft sleeve (7) on the transmission shaft (2) is limited.
5. The permanent magnet direct drive stirrer with fast adjustable blade angle according to claim 4, characterized in that: The transmission shaft (2) is threadedly connected with a fixing sleeve (16), the end of the fixing sleeve (16) is provided with an L-shaped block (17), the sliding sleeve (12) is provided with an L-shaped groove (18) rotatably connected with the L-shaped block (17), the two sides of the L-shaped block (17) are respectively in contact with the L-shaped groove (18), and the fixing sleeve (16) is provided with a second outer hexagonal nut (19).
6. The permanent magnet direct drive mixer with fast adjustable blade angle according to claim 4, characterized in that: The end of the protrusion (13) is provided with an inclined surface (20) in contact with the first groove (14).
7. The permanent magnet direct drive stirrer with fast adjustable blade angle according to claim 1, characterized in that: The outside of the box body (1) is provided with a permanent magnet motor (21), and the movable end of the permanent magnet motor (21) is connected with the transmission shaft (2).
8. The permanent magnet direct drive stirrer with fast adjustable blade angle according to claim 1, characterized in that: The end of the mounting base (3) is provided with an access hole (22), the access hole (22) is slidably connected with an access plate (23) and a gland (24), the access plate (23) is provided with a second bolt (25) threadedly connected with the transmission shaft (2), the gland (24) is provided with a third bolt (26) threadedly connected with the access plate (23), and the mounting base (3) is respectively provided with a first sealing strip (27) and a second sealing strip (28) in contact with the access plate (23) and the gland (24).