Single-phase asynchronous motor with dust removal structure

Abstract

The utility model relates to the technical field of single-phase asynchronous motors, and discloses a single-phase asynchronous motor with a dust removal structure, which comprises a casing and a stator core, the stator core is fixed around the center of the inner wall of the casing, and a stator winding is fixed around the inner wall of the stator core. A rotating shaft is movably assembled between the two sides of the center of the interior of the machine shell, a rotor is fixed to the exterior of the rotating shaft, and a fan shell is fixed to the left side of the exterior of the machine shell. According to the single-phase asynchronous motor with the dust removal structure, fan blades are assembled on the right side of the interior of the machine shell, when fan dirt needs to be cleaned, a screw rod is rotated to penetrate through a hole in the center of a dust screen to be fixedly connected with the left sides of the fan blades, and a rotating sleeve can rotate in situ in a plate of an air groove; and the cleaning rod can be guided to do circular motion in a manner of being attached to the dustproof net, dust blocked in meshes is cleaned in a scraping and sweeping manner, and the problem that the cleaning effect is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of single-phase asynchronous motors, in particular to a single-phase asynchronous motor with a dust removal structure. Background Art

[0002] A single-phase asynchronous motor is a device that uses single-phase alternating current. It has low power and low power consumption, and is widely praised by users. After being connected to the power supply, the rotor can rotate in the stator coil, and then the power source is drawn out through the output shaft. It can be seen in various pumps, grinding equipment, powder equipment, machine tools, and medical machinery.

[0003] Although the friction between the components inside the motor is small, it will still generate a certain amount of heat. A fan is needed to dissipate the heat synchronously to balance the heat inside the motor. During long-term use, the holes will inevitably be covered with dust, which people need to clean by themselves. This is quite cumbersome and inconvenient, and the cleaning effect is not ideal. There is still a possibility of clogging the air duct.

[0004] Now, a new type of single-phase asynchronous motor with dust removal structure is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a single-phase asynchronous motor with a dust removal structure to solve the problem of poor cleaning effect in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-phase asynchronous motor with a dust removal structure, comprising a casing and a stator core, a stator core is fixed around the center of the inner wall of the casing, and a stator winding is fixed around the inner wall of the stator core, a rotating shaft is movably assembled between the two sides at the center of the interior of the casing, and a rotor is fixed outside the rotating shaft, a fan casing is fixed on the left side of the exterior of the casing, and an air groove is installed on the left side of the fan casing, a rotary sleeve is movably connected at the center of the interior of the air groove, and an engaging groove is provided between the two sides of the interior of the rotary sleeve, a screw rod is horizontally inserted in the engaging groove, a dust net is vertically installed at the center of the interior of the casing, fan blades are assembled on the right side of the interior of the casing, and a cleaning rod is fixed at the top of the center of the screw rod.

[0007] Preferably, the right side of the screw rod is embedded in the screw hole at the center of the left side of the fan blade, and a space for the screw rod to pass through is reserved at the center of the dustproof net.

[0008] Preferably, the cleaning rod can move between the left side of the fan housing and the dustproof net, and the cleaning rod can be attached to the left side surface of the dustproof net.

[0009] Preferably, a threaded column is longitudinally installed at the rear of the right side inside the casing, and shaft sleeves are sleeved on the top and bottom of the outside of the threaded column, a connecting rod is longitudinally fixed to the front end of the shaft sleeve, a sanding block is fixed on the top of the connecting rod, a sleeve block is fixed on the right side inside the casing, and through grooves are provided on the top and bottom of the sleeve block, and the right side of the rotating shaft passes through the sleeve block.

[0010] Preferably, the sanding block is symmetrically clamped at two locations on the upper and lower surfaces of the rotating shaft, and the sanding block has a certain curvature.

[0011] Preferably, the threaded column is located at the right rear of the rotating shaft, and the connecting rod can slide up and down along the through slot.

[0012] Preferably, movable chambers are provided at the four corners of the bottom of the casing, and standing feet are movably inserted in the movable chambers, both sides of the bottom of the front end and the rear end of the casing are meshed and connected with first bolts through screw holes, a storage groove is transversely provided on the side of the movable chamber, and an insert cylinder is movably hinged on one side of the storage groove, an insert rod is movably connected inside the insert cylinder, and a second bolt is meshed and connected to the outer surface of the insert cylinder through a screw hole, and a socket is provided inside the side of the standing foot.

[0013] Preferably, the end of the insertion rod is embedded in the insertion hole, and the insertion rod can slide back and forth along the inner wall of the insertion tube.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the single-phase asynchronous motor with dust removal structure not only realizes convenient cleaning of dust inside the hole and locking of the rotating shaft, but also realizes convenient lifting support;

[0015] (1) By assembling the fan blade on the right side of the housing, when the fan dirt needs to be cleaned, the knob is embedded in the screw rod in the meshing groove, so that the screw rod passes through the hole at the center of the dust screen and is fixedly connected to the left side of the fan blade, and the rotary sleeve can rotate in situ in the plate of the air groove. When the fan blade is working, it can guide the cleaning rod to move in a circle against the dust screen, and clean the dust blocked in the mesh like a scraper. After finishing, the screw rod is twisted in the opposite direction to avoid the cleaning rod rubbing against the dust screen for a long time and damaging it;

[0016] (2) A sleeve block is fixed on the right side of the housing, and the right side of the rotor passes through the sleeve block and extends to the outside. When the motor stops moving, the threaded column rotates immediately, and then guides the two shaft sleeves outside it to slide along the outer wall of the threaded column. At this time, the connecting rod rises and falls along the inner wall of the through groove, which makes it convenient for the grinding block to clamp or leave the shaft, avoids the motor automatically starting and causing damage, and limits the rotation of the shaft;

[0017] (3) By inserting the standing feet in the movable chamber, the standing feet are pulled out from the movable chambers at the four corners, and then the position is locked using the first bolt. At the same time, the hinged plug-in tube is taken out from the storage groove, and the plug-in rod embedded in the plug-in tube is pulled out and locked using the second bolt. At this time, the end of the plug-in rod is inserted into the socket, which can prevent the plug-in rod from separating from the standing feet and can also raise the position of the motor body to facilitate heat dissipation and moisture prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the fan housing of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the set block of the utility model;

[0021] Figure 4 It is a schematic diagram of the front cross-sectional structure of the storage slot of the present utility model.

[0022] In the figure: 1, casing; 2, stator core; 3, stator winding; 4, rotor; 5, threaded column; 6, bushing; 7, bushing block; 8, rotating shaft; 9, grinding block; 10, connecting rod; 11, first bolt; 12, standing foot; 13, plug rod; 14, plug tube; 15, storage slot; 16, second bolt; 17, plug hole; 18, movable chamber; 19, fan casing; 20, air groove; 21, rotary sleeve; 22, screw rod; 23, meshing groove; 24, cleaning rod; 25, dust net; 26, fan blade; 27, through groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-4A single-phase asynchronous motor with a dust removal structure comprises a casing 1 and a stator core 2, wherein the stator core 2 is fixed around the center of the inner wall of the casing 1, and a stator winding 3 is fixed around the inner wall of the stator core 2, a rotating shaft 8 is movably assembled between the two sides at the center of the casing 1, and a rotor 4 is fixed outside the rotating shaft 8, a fan casing 19 is fixed on the left side of the outside of the casing 1, and an air groove 20 is installed on the left side of the fan casing 19, a rotary sleeve 21 is movably connected at the center of the air groove 20, and an engaging groove 23 is arranged between the two sides of the rotary sleeve 21, a screw rod 22 is horizontally inserted in the engaging groove 23, a dustproof net 25 is vertically installed at the center of the casing 1, a fan blade 26 is assembled on the right side of the casing 1, and a cleaning rod 24 is fixed at the top of the center of the screw rod 22;

[0025] The right side of the screw rod 22 is embedded in the screw hole at the center of the left side of the fan blade 26, and a space for the screw rod 22 to pass through is reserved at the center of the dustproof net 25. The cleaning rod 24 can move between the left side of the fan housing 19 and the dustproof net 25, and the cleaning rod 24 can be attached to the left side surface of the dustproof net 25;

[0026] Specifically, Figure 1 and Figure 2 As shown, when the fan needs to be cleaned of dirt, the knob is embedded in the screw rod 22 in the meshing groove 23, so that the screw rod 22 passes through the hole at the center of the dustproof net 25 and is fixedly connected to the left side of the fan blade 26, and the rotary sleeve 21 can rotate in situ in the plate of the air groove 20. When the fan blade 26 is working, it can guide the cleaning rod 24 to make a circular motion against the dustproof net 25 and clean it.

[0027] Embodiment 2: A threaded column 5 is longitudinally mounted on the rear right side of the housing 1, and a sleeve 6 is sleeved on the upper and lower sides of the outer portion of the threaded column 5. A connecting rod 10 is longitudinally fixed to the front end of the sleeve 6, and a grinding block 9 is fixed to the top of the connecting rod 10. A sleeve block 7 is fixed to the right side of the housing 1, and a through groove 27 is provided on the upper and lower sides of the sleeve block 7. The right side of the rotating shaft 8 passes through the sleeve block 7.

[0028] The sanding block 9 is symmetrically clamped at the upper and lower positions of the surface of the rotating shaft 8. The sanding block 9 has a certain curvature. The threaded column 5 is located at the right rear of the rotating shaft 8. The connecting rod 10 can slide up and down along the through groove 27.

[0029] Specifically, Figure 1 and Figure 3 As shown, the right side of the rotor 4 passes through the sleeve block 7 and extends to the outside. When the motor stops moving, the threaded column 5 is rotated immediately, and then the two shaft sleeves 6 outside it are guided to slide along the outer wall of the threaded column 5. At this time, the connecting rod 10 is lifted and lowered along the inner wall of the through groove 27, which is convenient for the grinding block 9 to clamp or leave the rotating shaft 8, maintaining the rotating shaft 8 in a prohibited state when idle.

[0030] Embodiment 3: The four corners of the bottom of the housing 1 are all provided with movable chambers 18, and the standing feet 12 are movably inserted in the movable chambers 18. The two sides of the bottom of the front end and the rear end of the housing 1 are meshed and connected with the first bolts 11 through screw holes. The side of the movable chamber 18 is transversely provided with a storage groove 15, and one side of the storage groove 15 is movably hinged with an insert tube 14, and the inside of the insert tube 14 is movably connected with an insert rod 13, and the outer surface of the insert tube 14 is meshed and connected with a second bolt 16 through screw holes. The inside of the side of the standing foot 12 is provided with a socket 17, and the end of the insert rod 13 is embedded in the socket 17, and the insert rod 13 can slide back and forth along the inner wall of the insert tube 14;

[0031] Specifically, Figure 1 and Figure 4 As shown, the foot 12 is pulled out from the movable chamber 18 at the four corners, and then the position is locked using the first bolt 11. At the same time, the hinged plug-in tube 14 is taken out from the storage groove 15, and the plug-in rod 13 embedded in the plug-in tube 14 is pulled out and locked using the second bolt 16. At this time, the end of the plug-in rod 13 is inserted into the insertion hole 17, which can prevent the plug-in rod 13 from separating from the foot 12 and maintain the stability of the structure.

[0032] Working principle: When the utility model is in use, firstly, the foot 12 is pulled out from the movable chamber 18 at the four corners, and then the first bolt 11 is used to lock the position, and the hinged plug-in tube 14 is taken out from the storage groove 15 at the same time, and the plug-in rod 13 embedded in the plug-in tube 14 is pulled out and locked with the second bolt 16. At this time, the end of the plug-in rod 13 is inserted into the insertion hole 17, which can prevent the plug-in rod 13 from separating from the foot 12 and support the motor body. When the fan needs to be cleaned, the screw rod 22 embedded in the meshing groove 23 of the knob is turned, so that the screw rod 22 passes through the hole at the center of the dustproof net 25 and the fan blade 26. The left side is fixedly connected together, and the rotary sleeve 21 can rotate in situ in the plate of the air groove 20. When the fan blades 26 are working, they can guide the cleaning rod 24 to make a circular motion in contact with the dustproof net 25, and clean the dust blocked in the mesh like scraping. The right side of the rotor 4 passes through the sleeve block 7 and extends to the outside. When the motor stops moving, the threaded column 5 is immediately rotated, and then the two shaft sleeves 6 outside it are guided to slide along the outer wall of the threaded column 5. At this time, the connecting rod 10 rises and falls along the inner wall of the through groove 27, which is convenient for the sanding block 9 to clamp or leave the rotating shaft 8, avoid damage caused by automatic start-up of the motor, and limit the rotation of the rotating shaft 8.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A single-phase asynchronous motor with a dust removal structure, comprising a housing (1) and a stator core (2), characterized in that: A stator core (2) is fixed around the center of the inner wall of the casing (1), and a stator coil (3) is fixed around the inner wall of the stator core (2). A rotating shaft (8) is movably mounted between the two sides at the center of the casing (1), and a rotor (4) is fixed outside the rotating shaft (8). A fan casing (19) is fixed on the left side of the outside of the casing (1), and an air groove (20) is installed on the left side of the fan casing (19). A rotary sleeve (21) is movably connected at the center of the air groove (20), and an engaging groove (23) is provided between the two sides of the rotary sleeve (21). A screw rod (22) is horizontally inserted in the engaging groove (23). A dust screen (25) is vertically mounted at the center of the casing (1). A fan blade (26) is assembled on the right side of the casing (1). A cleaning rod (24) is fixed at the top of the center of the screw rod (22).

2. The single-phase asynchronous motor with a dust removal structure according to claim 1, characterized in that: The right side of the screw rod (22) is embedded in the screw hole at the center of the left side of the fan blade (26), and a space for the screw rod (22) to pass through is reserved at the center of the dustproof net (25).

3. The single-phase asynchronous motor with a dust removal structure according to claim 1, characterized in that: The cleaning rod (24) can move between the left side of the fan housing (19) and the dustproof net (25), and the cleaning rod (24) can be attached to the left side surface of the dustproof net (25).

4. The single-phase asynchronous motor with a dust removal structure according to claim 1, characterized in that: A threaded column (5) is longitudinally mounted at the rear of the right side of the inside of the housing (1), and shaft sleeves (6) are sleeved on the upper and lower sides of the outside of the threaded column (5). A connecting rod (10) is longitudinally fixed to the front end of the shaft sleeve (6), and a grinding block (9) is fixed to the top of the connecting rod (10). A sleeve block (7) is fixed to the right side of the inside of the housing (1), and through grooves (27) are provided on the upper and lower sides of the inside of the sleeve block (7), and the right side of the rotating shaft (8) passes through the sleeve block (7).

5. The single-phase asynchronous motor with a dust removal structure according to claim 4, characterized in that: The sanding block (9) is symmetrically clamped at two locations, upper and lower, on the surface of the rotating shaft (8), and the sanding block (9) has a certain curvature.

6. The single-phase asynchronous motor with a dust removal structure according to claim 4, characterized in that: The threaded column (5) is located at the right rear of the rotating shaft (8), and the connecting rod (10) can slide up and down along the through slot (27).

7. The single-phase asynchronous motor with a dust removal structure according to claim 1, characterized in that: The four corners of the bottom of the housing (1) are all provided with movable chambers (18), and a standing foot (12) is movably inserted in the movable chamber (18), both sides of the bottom of the front end and the rear end of the housing (1) are meshed with first bolts (11) through screw holes, a storage groove (15) is transversely provided on the side of the movable chamber (18), and a plug-in tube (14) is movably hinged on one side of the storage groove (15), an insert rod (13) is movably connected inside the insert-in tube (14), and a second bolt (16) is meshed with a screw hole on the outer surface of the insert-in tube (14), and a plug-in hole (17) is provided inside the side of the standing foot (12).

8. The single-phase asynchronous motor with a dust removal structure according to claim 7, characterized in that: The end of the insertion rod (13) is embedded in the insertion hole (17), and the insertion rod (13) can slide back and forth along the inner wall of the insertion tube (14).

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