Energy-saving wear-resistant efficient asynchronous driving motor

Abstract

The utility model relates to the technical field of motors, in particular to an energy-saving wear-resistant high-efficiency asynchronous driving motor, which comprises a cylindrical base, a stator core, a rotor core, an axial fan and a fan cover, a plurality of radiating fins are uniformly spread on the peripheral surface of the base, an air duct is formed between the fan cover and the radiating fins, and the axial fan is arranged in the air duct. At least two protruding edges are arranged on the peripheral face of the machine base, the air filtering mechanism comprises filtering net bags, the adjacent filtering net bags are hinged, the filtering net bags located at the two ends are hinged to end plates, a plurality of filtering holes are formed in the bottom of each filtering net bag, the filtering net bags can be embedded in the heat dissipation grooves and completely cover the air channel, and sliding grooves are formed in the upper ends of the protruding edges. A sliding block is slidably arranged in the sliding groove, a limiting column is arranged on one side of the inner wall of the sliding groove, a fixing hole is formed in the end plate, and a spring is installed on one side of the sliding block. Therefore, cleaning and maintenance of the motor are more convenient, it is guaranteed that the motor has good heat dissipation efficiency, and the service life of the motor is effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors and relates to an energy-saving, wear-resistant and high-efficiency asynchronous drive motor. Background Technique

[0002] An asynchronous drive motor, also known as an induction motor, is an AC motor that works based on the laws of electromagnetic induction and electromagnetic force. An asynchronous motor generates electromagnetic torque through the interaction between the stator magnetic field and the induced current in the rotor winding, thereby driving the rotor to rotate and realizing the conversion of electrical energy into mechanical energy. Since the rotational speed of the rotor is always slightly lower than the rotational speed of the stator magnetic field, it is named "asynchronous".

[0003] In a working environment with high temperature and poor air circulation, in order to improve the heat dissipation efficiency of the motor, heat dissipation fins are circumferentially arranged on the outer surface of the motor base. An axial flow fan is installed at the non-working end of the motor shaft to assist in heat dissipation, and a fan cover is provided outside the axial flow fan. However, in some industries such as textile and paper making, a large amount of fibers are distributed in the air, which will enter the fan cover through the through holes connecting the fan cover and the motor base and wind around the fan and the rotating shaft. This not only causes inconvenience in cleaning and maintaining the motor, but also reduces the heat dissipation efficiency and service life of the motor. Summary of the Utility Model

[0004] The purpose of the utility model is to address the above problems existing in the prior art and propose an energy-saving, wear-resistant and high-efficiency asynchronous drive motor.

[0005] The purpose of the utility model can be achieved by the following technical solutions: An energy-saving, wear-resistant and high-efficiency asynchronous drive motor includes a motor base, a stator core fixed in the motor base, a rotor core, an axial flow fan and a fan cover. Front end covers and rear end covers are respectively fixedly connected to both ends of the motor base. A rotating shaft rotatably connected to the front end cover and the rear end cover is fixedly arranged through the rotor core. The axial flow fan is fixed on the output end of the rotating shaft. The motor base is in a cylindrical shape, and a plurality of heat dissipation fins are evenly arranged on the outer peripheral surface of the motor base. Heat dissipation grooves are formed between adjacent heat dissipation fins. An air duct communicating with the heat dissipation grooves is formed between the fan cover and the heat dissipation fins. At least two convex ribs are provided on the outer peripheral surface of the motor base to evenly divide the outer peripheral surface of the motor base into a plurality of heat dissipation blocks. The fan cover is fixed by fitting the heat dissipation fins and the upper ends of the convex ribs and covers the axial flow fan. This asynchronous drive motor also includes a plurality of air filter mechanisms corresponding to the heat dissipation blocks one by one. The air filter mechanism includes a plurality of filter net pockets corresponding to the grooves of the air filter mechanism one by one. Adjacent filter net pockets are hinged. End plates are hinged to the filter net pockets at both ends. A plurality of filter holes are provided at the bottom of the filter net pocket. The filter net pocket can be embedded in the heat dissipation groove and completely cover the air duct. A sliding groove is formed at the upper end of the convex rib. A sliding block is slidably arranged in the sliding groove. A limiting post is arranged on one side of the inner wall of the sliding groove. A fixing hole for sleeving outside the limiting post is formed on the end plate. A spring for driving the sliding block to slide towards the limiting post and pressing the end plate against the limiting post is installed on one side of the sliding block.

[0006] Preferably, the upper end of the slider has a paddle extending outside the chute.

[0007] Preferably, the end of the limiting post is semi-circular, and a semi-circular slot for inserting the end of the limiting post is provided on the side of the slider.

[0008] Preferably, the heat dissipation groove is in an inverted trapezoidal shape.

[0009] Preferably, the diameter of the filter holes is 0.2 mm - 2.8 mm, and the mesh number of the filter holes is 100 - 500 mesh.

[0010] Compared with the prior art, the present utility model has the following advantages:

[0011] It can effectively prevent a large amount of fibers in the air from entering the fan cover and winding around the axial flow fan and the rotating shaft. The air filter mechanism can be quickly disassembled and assembled with the machine base, making the cleaning and maintenance of the motor more convenient, ensuring that the motor has good heat dissipation efficiency, and effectively improving the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic top view structure diagram of the present utility model.

[0013] Figure 2 is Figure 1 a schematic sectional structure diagram at A - A.

[0014] Figure 3 is Figure 1 a schematic sectional structure diagram at B - B.

[0015] Figure 4 is Figure 2 a schematic enlarged structure diagram at C.

[0016] Figure 5 is a schematic sectional structure diagram of the filter net pocket.

[0017] In the figure, 1. machine base; 11. heat dissipation fins; 12. heat dissipation groove; 13. convex rib; 131. chute; 132. slider; 1321. paddle; 1322. slot; 133. limiting post; 134. spring; 14. heat dissipation block; 2. stator core; 3. rotor core; 31. rotating shaft; 4. axial flow fan; 5. fan cover; 51. air duct; 6. front end cover; 7. rear end cover; 8. air filter mechanism; 81. filter net pocket; 811. filter hole; 82. end plate; 821. fixing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following are specific embodiments of the present utility model in combination with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0019] As shown Figures 1 - 5 in the figure, an energy-saving, wear-resistant and efficient asynchronous drive motor includes a machine base 1, a stator core 2 fixed inside the machine base 1, a rotor core 3, an axial flow fan 4 and a fan cover 5. The two ends of the machine base 1 are respectively fixedly connected with a front end cover 6 and a rear end cover 7. A rotating shaft 31 rotatably connected to the front end cover 6 and the rear end cover 7 is fixedly inserted through the rotor core 3. The axial flow fan 4 is fixed on the output end of the rotating shaft 31. The machine base 1 is in a cylindrical shape, and a plurality of heat dissipation fins 11 are evenly distributed on the outer peripheral surface of the machine base 1. A heat dissipation groove 12 is formed between adjacent heat dissipation fins 11. An air duct 51 communicating with the heat dissipation groove 12 is formed between the fan cover 5 and the heat dissipation fins 11. At least two ribs 13 are provided on the outer peripheral surface of the machine base 1 to evenly divide the outer peripheral surface of the machine base 1 into a plurality of heat dissipation blocks 14. The fan cover 5 is fixed by fitting the heat dissipation fins 11 and the upper ends of the ribs 13 and covers the axial flow fan 5 therein. This asynchronous drive motor further includes a plurality of air filter mechanisms 8 corresponding to the heat dissipation blocks 14 one by one. The air filter mechanism 8 includes a plurality of filter bags 81 corresponding to the air filter mechanism grooves 12 one by one. Adjacent filter bags 81 are hinged. End plates 82 are hinged to the filter bags 81 at both ends. A plurality of filter holes 811 are provided at the bottom of the filter bag 81. The filter bag 81 can be embedded in the heat dissipation groove 12 and completely cover the air duct 51. A sliding groove 131 is formed at the upper end of the rib 13. A sliding block 132 is slidably provided in the sliding groove 131. A limiting post 133 is provided on one side of the inner wall of the sliding groove 131. A fixing hole 821 for sleeving the limiting post 133 is formed on the end plate 82. A spring 134 for driving the sliding block 132 to slide towards the limiting post 133 and pressing the end plate 82 against the limiting post 133 is installed on one side of the sliding block 132.

[0020] The working principle of the present utility model in practical application: When the motor works, the output end of the rotating shaft 31 of the motor rotates to drive the axial flow fan 4 to rotate. The axial flow fan 4 is a kind of fan that works based on the axial air flow direction. As Figure 2 shown in the figure, when the axial flow fan 4 rotates, air will flow from the heat dissipation groove 12 to the air duct 51 and finally be discharged from the through holes on the rear end face of the fan cover 5, accelerating the heat dissipation of the heat dissipation fins 11 on the outer peripheral surface of the machine base 1 and the rear end cover 7 into the air. The fibers in the air are blocked on the filter bag 81 by the air filter mechanism 8 and collected, which can effectively prevent the fibers in the air from entering the fan cover 5 and winding around the axial flow fan 4 or the rotating shaft 31.

[0021] For the installation of the air filter mechanism 8, first push the sliding block 132 to compress the spring 134, sleeve the end plate 82 on the limiting post 133, rotate the filter net 81 so that it is inserted and embedded in the heat dissipation groove 12 and completely cover the air duct 51, and release the sliding block 132. The sliding block 132 is pressed against the end plate 82 by the push of the spring 134.

[0022] When the air filter mechanism 8 needs to be removed for cleaning, first push the slider 132 to separate it from the pressure on the end plate 82, then pull the end plates 82 at both ends out of the slide groove 131, and then pull the filter net bag 81 out of the heat dissipation groove 12, until the air filter mechanism 8 is completely separated from the heat dissipation block 14, making it easier to clean and maintain the motor, ensuring that the motor has good heat dissipation efficiency and increasing the service life of the motor.

[0023] Furthermore, if Figure 4 As shown, the upper end of the slider 132 has a paddle 1321 extending out of the slide slot 131. The paddle 1321 is used to facilitate the hand to paddle the slider 132 to compress the spring 134, so as to make the slider 132 disengage from the pressure on the end plate 82 with more effort.

[0024] The end of the limiting column 133 is semicircular, and a semicircular slot 1322 is provided on the side of the slider 132 for the end of the limiting column 133 to be inserted, so that the end of the limiting column 133 can be inserted into the slot 1322 and locked, ensuring that the slider 132 is pressed against the end plate 82 more firmly and stably.

[0025] The heat dissipation slot 12 is in the shape of an inverted trapezoid. It is convenient for the filter net bag 81 to be inserted into and removed from the heat dissipation slot 12.

[0026] The diameter of the filter hole is 0.2mm-2.8mm, which is suitable for most fiber diameters, and the mesh number of the filter hole is 100-500 meshes.

[0027] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An energy-saving, wear-resistant and highly efficient asynchronous drive motor, comprising a frame (1), a stator core (2) fixed inside the frame (1), a rotor core (3), an axial flow fan (4) and a fan cover (5). The two ends of the frame (1) are respectively fixedly connected with a front end cover (6) and a rear end cover (7). A rotating shaft (31) rotatably connected to the front end cover (6) and the rear end cover (7) is fixedly inserted through the rotor core (3). The axial flow fan (4) is fixed on the output end of the rotating shaft (31), and is characterized in that, The base (1) is cylindrical, and a number of heat dissipation fins (11) are evenly distributed on the outer peripheral surface of the base (1). A heat dissipation groove (12) is formed between adjacent heat dissipation fins (11). An air duct (51) communicating with the heat dissipation groove (12) is formed between the fan cover (5) and the heat dissipation fins (11). At least two convex ribs (13) are provided on the outer peripheral surface of the base (1) to evenly divide the outer peripheral surface of the base (1) into a number of heat dissipation blocks (14). The fan cover (5) fits on the heat dissipation fins (11) and the upper ends of the convex ribs (13) and fixes to cover the axial flow fan (4) therein. This asynchronous drive motor further includes a number of air filter mechanisms (8) corresponding to the heat dissipation blocks (14) one by one. The air filter mechanism (8) includes a number of filter mesh pockets (81) corresponding to the air filter mechanism grooves one by one. Adjacent filter mesh pockets (81) are hinged. End plates (82) are hinged to the filter mesh pockets (81) at both ends. A number of filter holes (811) are provided at the bottom of the filter mesh pocket (81). The filter mesh pocket (81) can be embedded in the heat dissipation groove (12) and completely cover the air duct (51). A chute (131) is opened at the upper end of the convex rib (13). A slider (132) is slidably provided in the chute (131). A limiting post (133) is provided on one side of the inner wall of the chute (131). A fixing hole (821) for sleeving outside the limiting post (133) is opened on the end plate (82). A spring (134) for driving the slider (132) to slide towards the limiting post (133) and pressing the end plate (82) against the limiting post (133) is installed on one side of the slider (132).

2. The energy-saving, wear-resistant and highly efficient asynchronous drive motor according to claim 1, wherein The upper end of the slider (132) has a dial (1321) extending outside the chute (131).

3. An energy-saving, wear-resistant and highly efficient asynchronous drive motor according to claim 1, characterized in that, The end of the limiting post (133) is semicircular. A semicircular slot (1322) for inserting the end of the limiting post (133) is provided on the side surface of the slider (132).

4. An energy-saving, wear-resistant and highly efficient asynchronous drive motor according to claim 1, characterized in that, The heat dissipation groove (12) is in an inverted trapezoidal shape.

5. An energy-saving, wear-resistant and highly efficient asynchronous drive motor according to claim 1, characterized in that, The diameter of the filter hole is 0.2 mm - 2.8 mm, and the mesh number of the filter hole is 100 - 500 meshes.

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