Energy-saving permanent magnet synchronous motor connecting mechanism for stirrer

Abstract

The invention relates to the technical field of stirrers, and discloses an energy-saving permanent magnet synchronous motor connecting mechanism for stirrers, which comprises a driving motor, a coupling is mounted at the shaft end of the driving motor, a stirring shaft is mounted on the driving motor through the coupling, and a blade seat is movably mounted at one end, away from the driving motor, of the stirring shaft. A plurality of blades which are distributed at equal intervals are arranged on the outer side of the blade seat; a protective cover is arranged at one end of the driving motor, bearing covers are fixedly connected to the two ends of the protective cover in an inserted mode, bearings are installed in the bearing covers, bearing glands are fixedly installed at one ends of the bearing covers through bolts, grease fittings are formed in one ends of the bearing covers, and the grease fittings are sealed through rubber plugs. The front bearing and the rear bearing are arranged to support the stirring shaft, so that the concentricity of the stirring shaft is more stable under the action of the two bearings, and vibration generated by rotation when the stirring shaft is eccentric is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of agitators, and in particular relates to an energy-saving permanent magnet synchronous motor connection mechanism for agitators. Background Art

[0002] The stirring system is widely used in various fields. It uses mechanical means to replace manual stirring to maximize the stirring efficiency. The stirring system has different output powers according to the stirring volume and working conditions.

[0003] However, the traditional mixing system has disadvantages such as bulky size and easy oil leakage. In particular, the larger the motor power or the larger the reducer, the reducer and other components will generate noise during operation, which will damage the workers' hearing if used for a long time.

[0004] A Chinese patent application with publication number CN112371032A discloses a permanent magnet direct-drive energy-saving stirring system, in which the output shaft of the permanent magnet direct-drive motor and the stirring shaft are connected by a coupling. The setting of the coupling makes the connection between the output shaft and the stirring shaft simpler, without relying on traditional transmission mechanisms for transmission, avoiding friction losses caused by the operation of the transmission mechanism, and ensuring the strength required for transmission, thereby improving transmission efficiency and reducing costs.

[0005] However, this technical solution still has at least the following defects: in this technical solution, the permanent magnet direct drive motor is connected to the stirring shaft through a coupling and drives the stirring shaft to rotate, while the stirring shaft is limited only by the shaft seal assembly, and the concentricity of the stirring shaft during rotation cannot be stabilized. When the stirring shaft is eccentric during rotation, the high-speed rotation of the stirring shaft will generate vibration. In view of this, the present invention is proposed. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides an energy-saving permanent magnet synchronous motor connection mechanism for a stirrer, which supports the stirring shaft by arranging two front and rear bearings, so that the concentricity of the stirring shaft is more stable under the action of the two bearings, thereby avoiding vibration caused by eccentric rotation of the stirring shaft.

[0007] The technical solution adopted by the present invention to solve its technical problem is: An energy-saving permanent magnet synchronous motor connection mechanism for a stirrer comprises a driving motor, a coupling is installed at the shaft end of the driving motor, a stirring shaft is installed on the driving motor through the coupling, a blade seat is movably installed at one end of the stirring shaft away from the driving motor, and a plurality of blades distributed at equal intervals are arranged on the outer side of the blade seat; A shield is provided at one end of the driving motor, and bearing covers are fixedly inserted at both ends of the shield. A bearing is installed inside the bearing cover, and the inner ring of the bearing is fixedly sleeved on the stirring shaft. A bearing pressure cover is fixedly installed at one end of the bearing cover by bolts, and a closed space is formed between the bearing pressure cover and the bearing cover. The bearing is located in the closed space. A grease nipple is provided at one end of the bearing cover, and the grease nipple is sealed by a rubber plug. The grease nipple is communicated with the closed space formed between the bearing pressure cover and the bearing cover.

[0008] As a preferred embodiment of the present invention, a fixed platform is fixedly installed at the bottom of one end of the shield close to the driving motor, a suspension is fixedly installed at the bottom of the fixed platform, a supporting platform is fixedly installed at the bottom of the driving motor, a base is fixedly installed at the bottom of the supporting platform, the top of the base is fixedly connected to the bottom of the suspension, and a connecting frame is fixedly installed at the other end of the shield.

[0009] As a preferred embodiment of the present invention, a positioning plate is fixedly installed at one end of the connecting frame, a fixing ring is fixedly installed at one end of the positioning plate, a chuck is fixedly installed at one end of the positioning plate close to the driving motor, a stuffing machine sealing chamber is fixedly installed on the inner ring of the chuck, a shaft sleeve is sleeved on the outer side of the stirring shaft, the stuffing machine sealing chamber is movably sleeved on the shaft sleeve, a stuffing ring is movably connected to the inner wall of the stuffing machine sealing chamber, a stuffing gland is movably inserted at one end of the stuffing machine sealing chamber away from the positioning plate, the stuffing gland, the stuffing machine sealing chamber and the shaft sleeve together form a closed space, and the interior of the stuffing machine sealing chamber is filled with high water-based packing.

[0010] As a preferred embodiment of the present invention, a cover plate is fixedly installed at one end of the positioning plate, and the cover plate is movably sleeved on one end of the sealing chamber of the filling machine. A water inlet pipe is fixedly installed on one side of the cover plate, and a guide plate is rotatably connected to one side of the cover plate. The water inlet pipe is located inside the guide plate, and the water inlet pipe movably penetrates the positioning plate, and a flange is installed at one end of the water inlet pipe.

[0011] As a preferred embodiment of the present invention, a water retaining ring is fixedly sleeved on the stirring shaft, a protective sleeve tube is fixedly sleeved on the stirring shaft, a front split ring and a rear split ring are respectively sleeved on both ends of the protective sleeve tube of the stirring shaft, a front adjustment gasket is installed between the front split ring and the blade seat, and a rear adjustment gasket is installed between the rear split ring and the shaft sleeve.

[0012] As a preferred embodiment of the present invention, a plastic wheel is fixedly sleeved on the outside of the sheath tube, a positioning sleeve is fixedly installed on one end of the positioning plate, a rotating shaft is movably inserted on the positioning sleeve, the rotating shaft movably passes through the positioning plate and the cover plate and extends to the outside, and two mutually meshing transmission wheels are installed on one end of the rotating shaft near the guide plate, and the sum of the diameters of the two transmission wheels is the same as the distance between the inner wall of the guide plate and the outer wall of the plastic wheel.

[0013] As a preferred embodiment of the present invention, a rotating plate is fixedly installed on the other end of the rotating shaft, a limiting sleeve is fixedly connected to the rotating plate, a threaded rod is threadedly connected to the limiting sleeve, one end of the threaded rod is fixedly connected to a crank, the other end of the threaded rod is rotatably connected to a friction block, a guide rod is movably connected between the friction block and the rotating plate, the path of the guide rod is arc-shaped, fixed blocks are fixedly installed on both ends of the guide rod, one side of the fixed block is fixedly installed on a connecting frame, the guide rod is located at the bottom of the rotating plate and is movably sleeved with a spring, and a baffle rod is fixedly installed between the connecting frame and the fixed ring.

[0014] As a preferred embodiment of the present invention, a mechanical seal is fixedly sleeved on the shaft sleeve, a sealing ring is arranged between the mechanical seal and the stuffing machine sealing chamber, the sealing ring is sealed with the stuffing machine sealing chamber through the mechanical seal, and one end of the mechanical seal is aligned with the rear split ring.

[0015] As a preferred embodiment of the present invention, a blade pressure plate is installed inside the blade seat, one end of the blade pressure plate is adapted to the inside of the blade seat, the blade pressure plate is fixedly connected to the stirring shaft by bolts, and a blade pressure cover is fixedly installed at one end of the blade seat by bolts, the blade pressure cover forms an enclosed space with the blade seat and the stirring shaft, and the blade pressure plate is located in the enclosed space.

[0016] As a preferred embodiment of the present invention, a positioning column is movably connected to the side of the blade seat, one end of the positioning column is rotatably connected to a connecting disk, one end of the blade is fixedly connected to the connecting disk, a slot is provided on the side of the positioning column, and a plurality of push rods are movably connected to one end of the blade seat, the push rods correspond to the positions of the blades, one end of the push rods is aligned with the blade pressure cover, and the other end of the push rod is fixedly installed with an arc-shaped snap ring, which is adapted to the slot.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention supports the stirring shaft by arranging two front and rear bearings, so that the concentricity of the stirring shaft is more stable under the action of the two bearings, thereby avoiding vibration caused by eccentric rotation of the stirring shaft; The present invention arranges transmission wheels, plastic wheels and other structures so that the stirring shaft and the guide plate can be linked, so that the guide plate can be driven to rotate when the mixer is working, which is convenient for uniform flushing of the guide plate. During the flushing process, water flows along the guide plate to realize the water replenishment function for the stirred material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to the present invention; Figure 2 This is a structural schematic diagram of the plastic wheel of the present invention; Figure 3 This is a schematic diagram of the structure of the transfer plate of the present invention; Figure 4 It is a structural schematic diagram of the guide rod of the present invention; Figure 5 This is a schematic diagram of the structure of the water inlet pipe of the present invention; Figure 6 This is a schematic diagram of the structure of the sealing chamber of the packing machine of the present invention; Figure 7 This is a schematic diagram of the internal structure of the sealing chamber of the packing machine of the present invention; Figure 8 It is a schematic diagram of the internal structure of the protective cover of the present invention; Fig. 9 This is a schematic diagram of the bearing structure of the present invention; Fig.10 This is a schematic diagram of the structure of the stirring shaft of the present invention; Fig.11 It is a schematic diagram of the structure of the blade seat of the present invention.

[0019] Figure numerals: 1, drive motor; 2, support platform; 3, base; 4, suspension; 5, shield; 6, fixed platform; 7, coupling; 8, stirring shaft; 9, bearing cover; 10, bearing cover; 11, grease nipple; 12, bearing; 13, bushing; 14, positioning plate; 15, connecting frame; 16, packing machine sealing chamber; 17, chuck; 18, packing ring; 19, packing cover; 20, high water base packing; 21, mechanical seal; 22, sealing ring; 23, cover plate; 24, water inlet pipe; 25, guide plate; 26, rear split ring; 27, rear adjustment pad 28. Sheath tube; 29. ​​Front split collar; 30. Front adjustment gasket; 31. Blade seat; 32. Blade pressure plate; 33. Blade pressure cover; 34. Connecting plate; 35. Blade; 36. Positioning column; 37. Slot; 38. Push rod; 39. Arc-shaped snap ring; 40. Water retaining ring; 41. Plastic wheel; 42. Drive wheel; 43. Rotating shaft; 44. Positioning sleeve; 45. Rotating plate; 46. Limit sleeve; 47. Crank; 48. Threaded rod; 49. Friction block; 50. Guide rod; 51. Spring; 52. Fixing block; 53. Fixing ring; 54. Stop rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0021] Example 1

[0022] like Figure 1-Figure 11As shown, an energy-saving permanent magnet synchronous motor connection mechanism for a stirrer comprises a driving motor 1, a coupling 7 is installed at the shaft end of the driving motor 1, a stirring shaft 8 is installed on the driving motor 1 through the coupling 7, a blade seat 31 is movably installed at one end of the stirring shaft 8 away from the driving motor 1, and a plurality of blades 35 distributed at equal intervals are arranged on the outer side of the blade seat 31; A shield 5 is provided at one end of the driving motor 1, and bearing covers 9 are fixedly inserted at both ends of the shield 5. A bearing 12 is installed inside the bearing cover 9, and the inner ring of the bearing 12 is fixedly sleeved on the stirring shaft 8. A bearing pressure cover 10 is fixedly installed at one end of the bearing cover 9 by bolts, and a closed space is formed between the bearing pressure cover 10 and the bearing cover 9. The bearing 12 is located in the closed space. A grease nipple 11 is provided at one end of the bearing cover 9, and the grease nipple 11 is sealed by a rubber plug. The grease nipple 11 is communicated with the closed space formed between the bearing pressure cover 10 and the bearing cover 9.

[0023] like Figure 1 As shown, in a specific embodiment, a fixing platform 6 is fixedly installed at the bottom of one end of the shield 5 close to the driving motor 1, a suspension 4 is fixedly installed at the bottom of the fixing platform 6, a support platform 2 is fixedly installed at the bottom of the driving motor 1, a base 3 is fixedly installed at the bottom of the support platform 2, the top of the base 3 is fixedly connected to the bottom of the suspension 4, and a connecting frame 15 is fixedly installed at the other end of the shield 5. In this setting, the fixing platform 6 is used to connect the shield 5 and the driving motor 1, and the support platform 2 and the base 3 play a supporting role.

[0024] like Figure 6 , Figure 7 As shown, further, a positioning plate 14 is fixedly installed at one end of the connecting frame 15, a fixing ring 53 is fixedly installed at one end of the positioning plate 14, a chuck 17 is fixedly installed at the end of the positioning plate 14 close to the driving motor 1, a stuffing machine sealing chamber 16 is fixedly installed on the inner ring of the chuck 17, a shaft sleeve 13 is sleeved on the outer side of the stirring shaft 8, the stuffing machine sealing chamber 16 is movably sleeved on the shaft sleeve 13, a stuffing ring 18 is movably connected to the inner wall of the stuffing machine sealing chamber 16, a stuffing gland 19 is movably inserted at the end of the stuffing machine sealing chamber 16 away from the positioning plate 14, the stuffing gland 19, the stuffing machine sealing chamber 16 and the shaft sleeve 13 together form a closed space, and the inside of the stuffing machine sealing chamber 16 is filled with high water-based packing 20. In this arrangement, when the stirring shaft 8 rotates, the shaft sleeve 13 is driven to rotate, and the high water-based packing 20 is used to increase the sealing effect with the positioning plate 14. By injecting oil into the packing machine sealing chamber 16, the lubricity of the high water-based packing 20 and the shaft sleeve 13 is increased. The sealing of the shaft sleeve 13 and the packing machine sealing chamber 16 is increased by the mechanical seal 21 and the sealing ring 22. The shaft sleeve 13 plays a protective role for the stirring shaft 8, preventing the stirring shaft 8 from friction with other structures and causing wear.

[0025] Example 2

[0026] like Figure 5 As shown, in a specific embodiment, a cover plate 23 is fixedly mounted on one end of the positioning plate 14, and the cover plate 23 is movably sleeved on one end of the filling machine sealing chamber 16. A water inlet pipe 24 is fixedly mounted on one side of the cover plate 23, and a guide plate 25 is rotatably connected to one side of the cover plate 23. The water inlet pipe 24 is located inside the guide plate 25, and the water inlet pipe 24 movably penetrates the positioning plate 14, and a flange is installed on one end of the water inlet pipe 24. In this setting, when the liquid generated by the agitator splashes out during operation, the guide plate 25 effectively reduces the situation where the liquid splashes into the agitator, and the water inlet pipe 24 is connected to the water source through the flange, which is convenient for flushing and replenishing water.

[0027] like Figure 7 , Figure 8 , Fig.10 , Fig.11 As shown, further, a water retaining ring 40 is fixedly sleeved on the stirring shaft 8, a protective sleeve 28 is fixedly sleeved on the stirring shaft 8, and a front split collar 29 and a rear split collar 26 are respectively sleeved on both ends of the protective sleeve 28 of the stirring shaft 8, a front adjustment gasket 30 is installed between the front split collar 29 and the blade seat 31, and a rear adjustment gasket 27 is installed between the rear split collar 26 and the shaft sleeve 13. In this setting, the sealing between the blade seat 31 and the stirring shaft 8 is increased by the front split collar 29 and the front adjustment gasket 30, and the sealing between the shaft sleeve 13 and the stirring shaft 8 is increased by the rear split collar 26 and the rear adjustment gasket 27.

[0028] like Figure 2 As shown, further, a plastic wheel 41 is fixedly sleeved on the outer side of the sheath tube 28, a positioning sleeve 44 is fixedly installed on one end of the positioning plate 14, a rotating shaft 43 is movably inserted on the positioning sleeve 44, the rotating shaft 43 movably penetrates the positioning plate 14 and the cover plate 23 and extends to the outside, and two mutually meshing transmission wheels 42 are installed on one end of the rotating shaft 43 near the guide plate 25, and the sum of the diameters of the two transmission wheels 42 is the same as the distance between the inner wall of the guide plate 25 and the outer wall of the plastic wheel 41. In this setting, the transmission wheel 42 realizes the linkage between the plastic wheel 41 and the guide plate 25 through the meshing action with the plastic wheel 41 and the inner wall of the guide plate 25, and the sheath tube 28 is driven to rotate during the rotation of the stirring shaft 8, the sheath tube 28 drives the plastic wheel 41 to rotate, and the plastic wheel 41 drives the guide plate 25 to rotate through the transmission wheel 42.

[0029] like Figure 2 , Figure 3 , Figure 4As shown, further, a rotating plate 45 is fixedly installed at the other end of the rotating shaft 43, a limiting sleeve 46 is fixedly connected to the rotating plate 45, a threaded rod 48 is threadedly connected to the limiting sleeve 46, a crank 47 is fixedly connected to one end of the threaded rod 48, a friction block 49 is rotatably connected to the other end of the threaded rod 48, a guide rod 50 is movably connected between the friction block 49 and the rotating plate 45, the path of the guide rod 50 is in an arc shape, a fixing block 52 is fixedly installed at both ends of the guide rod 50, one side of the fixing block 52 is fixedly installed on the connecting frame 15, the guide rod 50 is located at the bottom of the rotating plate 45 and is movably sleeved with a spring 51, and a stop rod 54 is fixedly installed between the connecting frame 15 and the fixing ring 53. In this setting, when the crank 47 is rotated, the crank 47 drives the friction block 49 to move through the threaded rod 48, so that the friction block 49 can be pressed against the guide rod 50, and the rotating plate 45 remains fixed under the action of friction.

[0030] Example 3

[0031] like Figure 5-Figure 7 As shown, in a specific embodiment, a mechanical seal 21 is fixedly sleeved on the shaft sleeve 13, a sealing ring 22 is arranged between the mechanical seal 21 and the stuffing machine sealing chamber 16, the sealing ring 22 is sealed with the stuffing machine sealing chamber 16 through the mechanical seal 21, and one end of the mechanical seal 21 is aligned with the rear split collar 26. In this configuration, the mechanical seal 21 and the sealing ring 22 increase the sealing performance between the shaft sleeve 13 and the stuffing machine sealing chamber 16.

[0032] like Figure 1 , Fig.11 As shown, further, a blade pressure plate 32 is installed inside the blade seat 31, one end of the blade pressure plate 32 is adapted to the inside of the blade seat 31, the blade pressure plate 32 is fixedly connected to the stirring shaft 8 by bolts, and a blade pressure cover 33 is fixedly installed on one end of the blade seat 31 by bolts, and the blade pressure cover 33 forms a closed space with the blade seat 31 and the stirring shaft 8, and the blade pressure plate 32 is located in the closed space. In this setting, the top rod 38 is a magnetic material, and the blade pressure cover 33 is a magnetically attractive material. When the blade seat 31 needs to be disassembled, the blade pressure cover 33 and the blade pressure plate 32 are separated from the blade seat 31 by unscrewing the bolts. In this process, the arc-shaped snap ring 39 can be separated from the card slot 37 through the magnetic force of the top rod 38 and the blade pressure cover 33, and the blade seat 31 is separated from the stirring shaft 8. When installing, it is only necessary to reset the blade pressure cover 33 and the blade pressure plate 32 and tighten the bolts. The blade pressure cover 33 can prevent the stirring material from entering the blade pressure plate 32 and causing blockage.

[0033] like Figure 1 , Fig.11As shown, further, a positioning column 36 is movably inserted on the side of the blade seat 31, and one end of the positioning column 36 is rotatably connected to a connecting disk 34, and one end of the blade 35 is fixedly connected to the connecting disk 34. A slot 37 is provided on the side of the positioning column 36, and a plurality of push rods 38 are movably inserted at one end of the blade seat 31, and the push rods 38 correspond to the positions of the blades 35. One end of the push rod 38 is aligned with the blade pressure cover 33, and an arc-shaped snap ring 39 is fixedly installed on the other end of the push rod 38, and the arc-shaped snap ring 39 is adapted to the slot 37. In this setting, when adjusting the angle of the blade 35, the blade pressure cover 33 is loosened, and the push rod 38 and the arc-shaped snap ring 39 are in a relaxed state. After rotating the blade 35 to a suitable angle, the blade pressure cover 33 is reset, and the push rod 38 and the arc-shaped snap ring 39 are pressed against the positioning column 36 again, so that the blade 35 can be fixed.

[0034] The implementation principle of the energy-saving permanent magnet synchronous motor connection mechanism for a stirrer of this embodiment is as follows: when in use, the driving motor 1 drives the stirring shaft 8 to rotate through the coupling 7, and the stirring shaft 8 drives the blade 35 to rotate through the blade seat 31, thereby realizing the stirring function. During the rotation of the stirring shaft 8, the stirring shaft 8 remains stable under the support of the two bearings 12, and the concentricity of the stirring shaft 8 at the head and tail is improved to prevent the vibration caused by the eccentric rotation of the stirring shaft 8. Grease can be added to the bearing cover 9 through the grease nozzle 11 to increase the service life of the bearing 12; When the stirring shaft 8 rotates, the shaft sleeve 13 is driven to rotate, and the high water-based packing 20 is used to increase the sealing effect with the positioning plate 14. By injecting oil into the packing machine sealing chamber 16, the lubricity of the high water-based packing 20 and the shaft sleeve 13 is increased, and the sealing of the shaft sleeve 13 and the packing machine sealing chamber 16 is increased by the mechanical seal 21 and the sealing ring 22; When the liquid generated by the agitator splashes out, the guide plate 25 effectively reduces the situation where the liquid splashes into the agitator. A small amount of liquid splashed onto the inner wall of the guide plate 25 can be cleaned through the water inlet pipe 24. The crank 47 is pulled to drive the rotating plate 45 to rotate, and the rotating plate 45 drives the rotating shaft 43 to rotate. The rotating shaft 43 drives the transmission wheel 42 to rotate. The transmission wheel 42 realizes the linkage between the plastic wheel 41 and the guide plate 25 through the meshing action with the plastic wheel 41 and the inner wall of the guide plate 25. During the rotation of the agitator shaft 8 The protective tube 28 is driven to rotate, and the protective tube 28 drives the plastic wheel 41 to rotate. The plastic wheel 41 drives the guide plate 25 to rotate through the transmission wheel 42. The guide plate 25 and the blades 35 can be evenly washed through the water inlet pipe 24. The crank 47 is turned, and the crank 47 drives the friction block 49 to move through the threaded rod 48, so that the friction block 49 can be pressed against the guide rod 50. At this time, the rotating plate 45 is kept fixed under the action of friction. At the same time, the water pipe can also be used to replenish water during the operation of the agitator to adjust the concentration of the agitator. When the blade seat 31 needs to be disassembled, the blade cover 33 and the blade pressing plate 32 are separated from the blade seat 31 by unscrewing the bolts. During this process, the arc-shaped clamping ring 39 can be separated from the clamping groove 37 through the magnetic force of the top rod 38 and the blade cover 33, and the blade seat 31 is separated from the stirring shaft 8. When installing, it is only necessary to reset the blade cover 33 and the blade pressing plate 32 and tighten the bolts. The blade cover 33 can prevent the stirring material from entering the blade pressing plate 32 and causing blockage; When adjusting the angle of the blade 35, loosen the blade cover 33. At this time, the push rod 38 and the arc-shaped snap ring 39 are in a relaxed state. After rotating the blade 35 to a suitable angle, reset the blade cover 33, and make the push rod 38 and the arc-shaped snap ring 39 press against the positioning column 36 again, so that the blade 35 can be fixed.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An energy-saving permanent magnet synchronous motor connection mechanism for a stirrer, comprising a drive motor (1), It is characterized in that A coupling (7) is mounted on the shaft end of the driving motor (1), and a stirring shaft (8) is mounted on the driving motor (1) via the coupling (7); a blade seat (31) is movably mounted on one end of the stirring shaft (8) away from the driving motor (1), and a plurality of blades (35) are arranged at equal intervals on the outer side of the blade seat (31); A shield (5) is provided at one end of the driving motor (1), and bearing covers (9) are fixedly inserted at both ends of the shield (5). A bearing (12) is installed inside the bearing cover (9), and the inner ring of the bearing (12) is fixedly sleeved on the stirring shaft (8). A bearing pressure cover (10) is fixedly installed at one end of the bearing cover (9) by bolts, and a closed space is formed between the bearing pressure cover (10) and the bearing cover (9), and the bearing (12) is located in the closed space. A grease nipple (11) is provided at one end of the bearing cover (9), and the grease nipple (11) is sealed by a rubber plug. The grease nipple (11) is communicated with the closed space formed between the bearing pressure cover (10) and the bearing cover (9).

2. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 1, It is characterized in that A fixing platform (6) is fixedly mounted on the bottom of one end of the shield (5) close to the drive motor (1), a suspension (4) is fixedly mounted on the bottom of the fixing platform (6), a support platform (2) is fixedly mounted on the bottom of the drive motor (1), a base (3) is fixedly mounted on the bottom of the support platform (2), the top of the base (3) is fixedly connected to the bottom of the suspension (4), and a connecting frame (15) is fixedly mounted on the other end of the shield (5).

3. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 2, It is characterized in that A positioning plate (14) is fixedly mounted on one end of the connecting frame (15), a fixing ring (53) is fixedly mounted on one end of the positioning plate (14), a chuck (17) is fixedly mounted on one end of the positioning plate (14) close to the driving motor (1), a stuffing machine sealing chamber (16) is fixedly mounted on the inner ring of the chuck (17), a shaft sleeve (13) is sleeved on the outer side of the stirring shaft (8), the stuffing machine sealing chamber (16) is movably sleeved on the shaft sleeve (13), a stuffing ring (18) is movably connected to the inner wall of the stuffing machine sealing chamber (16), a stuffing gland (19) is movably inserted on one end of the stuffing machine sealing chamber (16) away from the positioning plate (14), the stuffing gland (19) and the stuffing machine sealing chamber (16) and the shaft sleeve (13) together form a closed space, and the stuffing machine sealing chamber (16) is filled with high water-based packing (20).

4. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 3, It is characterized in that A cover plate (23) is fixedly mounted on one end of the positioning plate (14), the cover plate (23) is movably sleeved on one end of the sealing chamber (16) of the filler, a water inlet pipe (24) is fixedly mounted on one side of the cover plate (23), a guide plate (25) is rotatably connected to one side of the cover plate (23), the water inlet pipe (24) is located inside the guide plate (25), the water inlet pipe (24) movably penetrates the positioning plate (14), and a flange is mounted on one end of the water inlet pipe (24).

5. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 4, It is characterized in that A water retaining ring (40) is fixedly sleeved on the stirring shaft (8), a protective sleeve (28) is fixedly sleeved on the stirring shaft (8), a front split sleeve ring (29) and a rear split sleeve ring (26) are respectively sleeved on both ends of the stirring shaft (8) located on the protective sleeve tube (28), a front adjustment gasket (30) is installed between the front split sleeve ring (29) and the blade seat (31), and a rear adjustment gasket (27) is installed between the rear split sleeve ring (26) and the shaft sleeve (13).

6. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 5, It is characterized in that A plastic wheel (41) is fixedly sleeved on the outer side of the protective sleeve (28); a positioning sleeve (44) is fixedly mounted on one end of the positioning plate (14); a rotating shaft (43) is movably inserted on the positioning sleeve (44); the rotating shaft (43) movably penetrates the positioning plate (14) and the cover plate (23) and extends to the outside; two mutually meshing transmission wheels (42) are mounted on one end of the rotating shaft (43) close to the guide plate (25); the sum of the diameters of the two transmission wheels (42) is the same as the distance between the inner wall of the guide plate (25) and the outer wall of the plastic wheel (41).

7. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 6, It is characterized in that A rotating plate (45) is fixedly mounted on the other end of the rotating shaft (43); a limiting sleeve (46) is fixedly connected to the rotating plate (45); a threaded rod (48) is threadedly connected to the limiting sleeve (46); one end of the threaded rod (48) is fixedly connected to a crank (47); the other end of the threaded rod (48) is rotatably connected to a friction block (49); a guide rod (50) is movably connected between the friction block (49) and the rotating plate (45); the path of the guide rod (50) is in an arc shape; fixed blocks (52) are fixedly mounted on both ends of the guide rod (50); one side of the fixed block (52) is fixedly mounted on the connecting frame (15); the guide rod (50) is located at the bottom of the rotating plate (45) and is movably sleeved with a spring (51); and a blocking rod (54) is fixedly mounted between the connecting frame (15) and the fixing ring (53).

8. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 5, It is characterized in that A mechanical seal (21) is fixedly sleeved on the shaft sleeve (13), a sealing ring (22) is provided between the mechanical seal (21) and the stuffing machine sealing chamber (16), the sealing ring (22) is sealed with the stuffing machine sealing chamber (16) through the mechanical seal (21), and one end of the mechanical seal (21) is aligned with the rear split collar (26).

9. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 1, It is characterized in that A blade pressing plate (32) is installed inside the blade seat (31); one end of the blade pressing plate (32) is adapted to the inside of the blade seat (31); the blade pressing plate (32) is fixedly connected to the stirring shaft (8) via bolts; a blade pressing cover (33) is fixedly installed on one end of the blade seat (31) via bolts; the blade pressing cover (33) forms a closed space with the blade seat (31) and the stirring shaft (8); and the blade pressing plate (32) is located in the closed space.

10. The energy-saving permanent magnet synchronous motor connection mechanism for a stirrer according to claim 9, It is characterized in that A positioning column (36) is movably inserted into the side of the blade seat (31), one end of the positioning column (36) is rotatably connected to a connecting disk (34), one end of the blade (35) is fixedly connected to the connecting disk (34), a clamping groove (37) is provided on the side of the positioning column (36), a plurality of push rods (38) are movably inserted into one end of the blade seat (31), the push rods (38) correspond to the positions of the blades (35), one end of the push rod (38) is aligned with the blade pressure cover (33), and an arc-shaped clamping ring (39) is fixedly installed on the other end of the push rod (38), and the arc-shaped clamping ring (39) is adapted to the clamping groove (37).

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