Permanent magnet motor direct drive type stirrer

Abstract

The utility model relates to the technical field of stirring mechanical equipment, in particular to a permanent magnet motor direct drive type stirrer which comprises a rack, a permanent magnet direct drive motor, a stirring paddle, an adjusting device and a flow guide plate. A permanent magnet direct drive motor is fixedly mounted above the rack, a main shaft of the permanent magnet direct drive motor is connected with a stirring paddle, an adjusting device is mounted below the rack, an adjusting groove is formed in the adjusting device, an adjusting block is arranged on a flow guide plate, the adjusting block is adjustably and fixedly mounted in the adjusting groove, and a tangential plate and a guide plate are arranged in the flow guide plate; a blade type cutting part is arranged at the front end of the tangential plate, and an arc-shaped bending part is arranged at the tail end of the guide plate. The stirring device is simple in structure, small in installation occupied area and convenient to install and maintain, the use cost is reduced, and meanwhile, the position of the flow guide plate can be reasonably adjusted according to the size of equipment and process conditions in the use process, so that the stirring effect is improved, the use safety can be ensured, and the stirring device is convenient to use in production.

Description

Technical Field

[0001] This utility model relates to the field of mixing machinery and equipment technology, specifically to a permanent magnet motor direct-drive mixer. Background Technology

[0002] Permanent magnet direct drive motors utilize permanent magnets to directly act on the rotor, thereby converting electrical energy into mechanical energy. This process eliminates the energy loss and noise caused by gear transmission in traditional motors, resulting in high efficiency and high dynamic response. It can greatly reduce energy waste and lower operating costs.

[0003] Permanent magnet direct drive motors are widely used in various fields, such as automobiles, robots, medical equipment, printing machinery, and high-speed trains. They have advantages such as self-starting, low vibration, low noise, high precision, and easy control, and have broad application prospects in fields such as machinery manufacturing, automation control, and new energy.

[0004] Existing methods use a permanent magnet direct drive motor connected to the agitator, which simplifies the overall structure of the equipment and significantly reduces usage and floor space costs, bringing convenience to enterprise production while effectively reducing production costs. To achieve better mixing results, baffles are often used, such as the "high mixing intensity and high shear force agitator" disclosed in Chinese invention patent CN 103877894 B. This effectively reduces equipment costs and ensures mixing performance. However, the baffles are located on the inner wall of the equipment, requiring each unit to have them re-welded and installed, which is time-consuming, labor-intensive, and inconvenient.

[0005] Therefore, a permanent magnet motor direct-drive mixer that integrates the baffle plate and the mixer, and does not require internal modifications during operation, is an urgent problem to be solved. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of the existing technology by providing a permanent magnet motor direct-drive stirrer that integrates the guide plate and the stirrer, eliminating the need for internal modifications to the equipment. Furthermore, the guide plate can be adapted to various signal equipment specifications.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a permanent magnet motor direct drive stirrer, including a permanent magnet direct drive motor, the permanent magnet direct drive motor being fixedly mounted on a frame, the main shaft of the permanent magnet direct drive motor being connected to the stirring paddle, an adjustment device being installed below the frame, and a guide plate being installed through the adjustment device.

[0008] Furthermore, a flange is provided below the frame, and a spindle mounting hole is provided on the flange. The spindle of the permanent magnet direct drive motor is connected to the spindle mounting hole. An adjustment device is radially installed below the flange. The spindle mounting hole is located on one side of the flange, and the adjustment device is located on the other side of the flange. The adjustment device and the spindle mounting hole are located on the same diameter of the flange.

[0009] Furthermore, the adjustment device is provided with a "T-shaped" adjustment groove, and a "T-shaped" adjustment block is provided above the guide plate. The adjustment block and the adjustment groove cooperate with each other, and the adjustment block and the adjustment groove are tunably and fixedly connected.

[0010] Furthermore, threaded holes are provided on both sides of the adjustment groove, and fastening bolts are connected through the threaded holes, with the front end of the fastening bolts pressing against the adjustment block.

[0011] Furthermore, the adjustment groove has an open end near the main shaft and a closed end far from the main shaft, and the distance between the open end and the main shaft is greater than the length of the adjustment block.

[0012] Furthermore, the guide plate is provided with a tangential plate and a guide plate. The tangential plate is tangential to the direction of rotation of the stirring paddle. The tangential plate and the guide plate are smoothly connected. The included angle between the tangential plate and the guide plate is 90 to 120°. An adjusting block is set above the tangential plate. The adjusting block and the tangential plate are arranged perpendicular to each other.

[0013] Furthermore, the front end of the tangential plate is provided with a blade-shaped cutting section, and the end of the guide plate is provided with an arc-shaped bending section.

[0014] The advantages of this utility model are: simple structure, small installation area, easy installation and maintenance, reduced use cost, and the ability to reasonably adjust the position of the guide plate according to the size of the equipment and process conditions during use, thereby improving the stirring effect and ensuring safe use, making it convenient for production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the guide plate of this utility model;

[0017] Figure 3 This is a schematic diagram (view from below) of the structure below the flange on the frame of this utility model.

[0018] Figure 4 This is a schematic diagram of the overall structure of the adjustment device of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the adjustment device and the guide plate of this utility model.

[0020] The names corresponding to each mark in the diagram:

[0021] 1. Frame; 11. Inspection port; 12. Flange; 121. Bolt hole; 122. Main shaft mounting hole; 13. Adjustment device; 131. Mounting plate; 132. Adjustment groove; 133. Open end; 134. Sealing end; 135. Fastening bolt; 2. Agitator; 3. Permanent magnet direct drive motor; 31. Housing; 32. Stator; 33. Rotor; 34. Expansion sleeve; 35. Main shaft; 36. Bearing; 4. Guide plate; 41. Tangential plate; 411. Blade-shaped cutting part; 412. Connecting part; 42. Guide plate; 421. Arc-shaped bending part; 43. Adjustment block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0023] Embodiments of this utility model:

[0024] like Figure 1-5 As shown, in this embodiment, a frame 1 is provided, and a permanent magnet direct drive motor 3 is fixedly connected to the frame 1. A flange 11 is provided below the frame 1, and the flange 11 is connected to the flange on the equipment connection port. Bolt holes 121 are provided around the flange 11, and a main shaft mounting hole 122 is provided on one side of the flange. The main shaft mounting hole 122 is connected to the main shaft 35 of the permanent magnet direct drive motor 3. An inspection port 11 is provided on the frame 1, and a stirring paddle 2 is connected below the main shaft 35. A guide plate 4 is adjustablely connected below the flange 11.

[0025] The permanent magnet direct drive motor 3 is provided with a housing 31, a stator 32 is fixed inside the housing 31, and a bearing chamber is provided in the housing 32. A bearing 36 is installed in the bearing chamber and is connected to the main shaft 35. The main shaft 35 is connected to the rotor 33 inside the stator 32 through a shrink sleeve 34 (the permanent magnet direct drive motor 3 is existing, and its structural principle will not be described in detail).

[0026] The guide plate 4 is provided with a tangential plate 41 and a guide plate 42. The tangential plate 41 is tangential to the direction of rotation of the agitator (clockwise as shown in the attached figure). A blade-shaped cutting part 411 is provided at the front end of the tangential plate 41 (the blade of the blade-shaped cutting part 411 does not need to be too thin, but plays the role of cutting the water flow during rotation to ensure safety in use). The guide plate 42 is smoothly connected to the guide plate 42, and the included angle between the two is 90 to 120°. An arc-shaped bending part 421 is provided at the end of the guide plate 42.

[0027] An adjusting block 43 is connected above the guide plate 42 via a connecting part 422, and an adjusting device 13 is radially arranged below the flange 11. The adjusting block 43 cooperates with the adjusting device 13. The adjusting device 13 is provided with a mounting plate 131 and an adjusting groove 132. The mounting plate 131 is fixedly connected to the flange 11. The adjusting groove 132 cooperates with the adjusting block 43 in the guide plate 4. The adjusting block 43 is inserted into the adjusting groove 132 from the opening end 133, and the adjusting block 43 and the adjusting groove 132 are connected and fixed by fastening bolts 135. At the same time, the other end of the adjusting groove 132 is set as a sealing end 134. The opening end 133 is the near end of the stirring paddle 2, and the sealing end 134 is the far end of the stirring paddle 2.

[0028] The principle of this utility model is as follows:

[0029] In use, the adjusting device 13 is first installed and radially fixed below the flange 13, with the opening end 133 of the adjusting device 13 close to the stirring paddle 2. It can be fixed by welding or bolt connection (the embodiment shown in the figure shows the bolt connection method). It should be noted that the distance between the opening end 133 of the adjusting device 13 and the main shaft mounting hole 122 should be adjusted and controlled so that the distance is greater than the length of the adjusting block 43, so as not to affect the insertion of the adjusting block 43 into the adjusting groove 132 from that point.

[0030] After the guide plate 4 is connected to the regulating groove 132, the fastening bolt 135 is connected through the threaded hole on the regulating groove 132. By tightening the fastening bolt 135, the regulating block 43 is pressed and fixed in the regulating groove 132, thereby realizing the connection and fixation between the guide plate 4 and the regulating groove 132. During the process, the distance between the guide plate 4 and the stirring paddle 2 can be adjusted according to actual needs. In actual adjustment, reasonable adjustments can be made according to the size of the equipment and process conditions. Generally, if the equipment size is large, the distance between the guide plate 4 and the stirring paddle 2 should be increased appropriately. If the equipment size is small, the distance between the guide plate 4 and the stirring paddle 2 should be decreased appropriately to ensure good stirring effect. At the same time, when the speed is halved and high, the distance between the guide plate 4 and the stirring paddle 2 can also be increased appropriately, and vice versa.

[0031] After the guide plate 4 is installed, the agitator can be installed on the equipment's mounting port. When the agitator is working, the agitator paddle 2 stirs the material, and the guide plate 4 cuts the material and guides it to the center of the agitation, thus making the stirring effect better. However, if the fastening bolt 135 loosens during long-term use, the guide plate 4 may become loose. During this process, due to the centrifugal force of rotation, the guide plate 4 will move outward. The sealing end 134 can prevent the guide plate 4 from falling off, thus ensuring safe use.

Claims

1. A permanent magnet motor direct-drive stirrer, comprising a permanent magnet direct-drive motor (3), characterized in that: The permanent magnet direct drive motor (3) is fixedly installed on the frame (1). The main shaft (35) of the permanent magnet direct drive motor (3) is connected to the stirring paddle (2). An adjustment device (13) is installed below the frame (1), and a guide plate (4) is installed through the adjustment device (13).

2. The permanent magnet motor direct-drive stirrer according to claim 1, characterized in that: A flange (12) is provided below the frame (1). A spindle mounting hole (122) is provided on the flange (12). The spindle (35) of the permanent magnet direct drive motor (3) is connected to the spindle mounting hole (122). An adjustment device (13) is radially installed below the flange (12). The spindle mounting hole (122) is located on one side of the flange (12), and the adjustment device (13) is located on the other side of the flange (12). The adjustment device (13) and the spindle mounting hole (122) are located on the same diameter of the flange (12).

3. A permanent magnet motor direct-drive stirrer according to claim 2, characterized in that: The regulating device (13) is provided with a "T-shaped" regulating groove (132) and a "T-shaped" regulating block (43) is provided above the guide plate (4). The regulating block (43) cooperates with the regulating groove (132) and the regulating block (43) and the regulating groove (132) are tunably and fixedly connected.

4. A permanent magnet motor direct-drive stirrer according to claim 3, characterized in that: The adjustment groove (132) is provided with threaded holes on both sides, and fastening bolts (135) are connected through the threaded holes. The front end of the fastening bolts (135) abuts against the adjustment block (43).

5. A permanent magnet motor direct-drive stirrer according to claim 3, characterized in that: The adjustment groove (132) has an open end (133) near the main shaft (35) and a closed end (134) far from the main shaft (35). The distance between the open end (133) and the main shaft is greater than the length of the adjustment block (43).

6. A permanent magnet motor direct-drive stirrer according to claim 3, characterized in that: The guide plate (4) is provided with a tangential plate (41) and a guide plate (42). The tangential plate (41) is tangential to the direction of rotation of the stirring paddle (2). The tangential plate (41) and the guide plate (42) are smoothly connected. The included angle between the tangential plate (41) and the guide plate (42) is 90 to 120°. The adjusting block (43) is set above the tangential plate (41). The adjusting block (43) and the tangential plate (41) are arranged perpendicular to each other.

7. A permanent magnet motor direct-drive stirrer according to claim 6, characterized in that: The front end of the tangential plate (41) is provided with a blade-shaped cutting part (411), and the end of the guide plate (42) is provided with an arc-shaped bending part (421).

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