Magnetizing equipment

Abstract

The utility model discloses magnetizing equipment, relates to the technical field of motor rotors, and solves the problems that when different types of rotors are magnetized, a jig needs to be replaced, one jig cannot be applied to the different types of rotors, and the cost is too high, the magnetizing equipment comprises an equipment frame, a magnetizing piece is fixed on the upper surface of the equipment frame, and the magnetizing piece is fixed on the lower surface of the equipment frame. A containing cavity is formed in the magnetizing part, a limiting mechanism used for limiting the rotor is fixed to the lower end of the interior of the containing cavity, and a pressing mechanism used for pressing the rotor is fixed to the upper surface of the magnetizing part. According to the utility model, through the spring arranged on the fixing rod, when the rotor body is completely pushed into the placing cavity, the lower end of the limiting plate is ejected out under the action of compression of the spring, and the rotor bodies with inner holes of different sizes can be limited under the action of rotation of the limiting plate, so that the rotor clamping device is suitable for rotors of different types, and the working efficiency is improved. Equipment does not need to be replaced.

Description

Technical Field

[0001] The utility model relates to the field of motor rotors, in particular to magnetizing equipment. Background Art

[0002] With the gradual development of the new energy motor industry, there are more and more types of motors. The motor rotor is the rotating part of the motor. The motor consists of two parts, the rotor and the stator. It is a device used to realize the conversion of electrical energy into mechanical energy and mechanical energy into electrical energy. The motor rotor is divided into electric motor rotor and generator rotor, and the motor rotor needs to be magnetized before use.

[0003] A Chinese utility model (Announcement No.: CN207338053U) discloses a fixture for magnetizing and testing a motor rotor, which includes a first through hole on a work platform, a stator coil support platform directly above the first through hole, a second through hole in the middle of the stator coil support platform, a guide spindle that moves vertically up and down is arranged in the first through hole, a rotor support platform is arranged in the lower half of the guide spindle, a reference positioning pin is arranged above the rotor support platform, a round table is arranged below the rotor support platform, a guide column is arranged below the round table, the guide column and a connecting plate are arranged to move up and down, a third through hole is arranged in the middle of the connecting plate, support columns are arranged around the third through hole, a pneumatic device is arranged below the connecting plate, and the pneumatic device is connected to the round table through the third through hole. The utility model designs a magnetizing tool with precise alignment by combining the wiring of the motor stator coil, and the magnetization and detection of the rotor can be completed under the same tool, which is convenient and quick, and the magnetization and detection can be completed by replacing the stator and rotor fixture.

[0004] In the above technical solution, by combining the wiring of the motor stator coil, a precise magnetizing tooling is designed. The magnetization and detection work can be completed by replacing the stator and rotor fixtures, which effectively solves the problem of magnetizing different rotors and adapts to different styles of rotors more quickly. However, when magnetizing different types of rotors, it is necessary to replace the fixture, and one fixture cannot be used for different types of rotors, resulting in excessively high costs. Therefore, a magnetizing device is now proposed. Utility Model Content

[0005] In order to improve the problem that when magnetizing different types of rotors, the jig needs to be replaced and one jig cannot be used for different types of rotors, resulting in excessively high costs, the utility model provides a magnetizing device.

[0006] The utility model provides a magnetizing device, which adopts the following technical solutions:

[0007] The magnetizing device comprises an equipment frame, a magnetizing component is fixed on the upper surface of the equipment frame, a placement cavity is provided inside the magnetizing component, a limiting mechanism for limiting the rotor is fixed at the lower end inside the placement cavity, a clamping mechanism for clamping the rotor is fixed on the upper surface of the magnetizing component, a cooling mechanism for cooling the magnetizing component is fixed inside the equipment frame, a rotor body is arranged inside the placement cavity, and a magnetizing coil is fixed to the inner wall of the magnetizing component.

[0008] By adopting the above technical solution, the rotor body to be magnetized is inserted into the placement cavity, and the magnetization coil in the magnetization component is energized to magnetize the rotor body.

[0009] Optionally, the limiting mechanism includes a positioning shaft, the positioning shaft is fixed at the lower end inside the placement cavity, a fixing rod is fixed in the vertical direction inside the positioning shaft, and four springs are fixed in a circular array on the outer surface of the fixing rod.

[0010] By adopting the above technical solution, when the rotor body is completely pushed into the placement cavity through the spring arranged on the fixing rod, the lower end of the limit plate is pushed out under the action of the compression of the spring itself. Since the limit plate can rotate, the rotor body with different inner hole sizes can be limited, so that different types of rotors can be used easily without changing the equipment.

[0011] Optionally, the ends of the four springs are fixed with limiting plates hingedly connected to the positioning shaft, and the outer surface of the positioning shaft is provided with four receiving grooves matching the limiting plates.

[0012] By adopting the above technical solution, the limiting plate can be rotated into the positioning shaft through the receiving groove provided on the positioning shaft, thereby ensuring the normal installation of the rotor.

[0013] Optionally, the clamping mechanism includes a fixing ring fixed on the upper surface of the magnetizing part, the upper surface of the fixing ring is provided with two limiting holes, the upper end of the fixing ring is connected to a clamping block, and the lower surface of the clamping block is symmetrically fixed with two connecting pins that are engaged with the limiting holes.

[0014] By adopting the above technical solution, the connecting pin is aligned with the limiting hole through the limiting hole on the fixing ring, and the clamping block is lowered in the vertical direction and rotated so that the connecting pin is inserted into the limiting hole. The lower end of the clamping block contacts the upper end of the rotor body to clamp the rotor body to prevent it from falling off.

[0015] Optionally, the cooling mechanism includes a water tank fixed inside the equipment frame, a submersible pump is fixed inside the water tank by bolts, the output end of the submersible pump is connected to a delivery pipe, the end of the delivery pipe is connected to a flow chamber opened inside the magnetizing component.

[0016] By adopting the above technical solution, the submersible pump in the water tank is started to pump out the coolant, which is then sent to the flow cavity in the magnetizing component through the delivery pipe to cool the magnetizing component, thereby indirectly cooling the magnetizing coil to avoid the magnetizing coil being overheated and affecting its service life.

[0017] Optionally, the upper half of the outer surface of the magnetizing component is connected to a return pipe interconnected with the flow cavity, and the return pipe is interconnected with the water storage tank.

[0018] By adopting the above technical solution, the coolant that continuously flows into the flow cavity can flow into the water storage tank again for recycling with the cooperation of the return pipe.

[0019] Optionally, an ejector cylinder is fixed to the inner wall of the equipment frame by bolts, and an ejector plate is fixed to the telescopic end of the ejector cylinder through the inner wall of the magnetizing component, and the ejector plate is slidably connected to the positioning shaft.

[0020] By adopting the above technical solution, the ejection electric cylinder drives the ejection plate to move vertically, and the rotor body is ejected and extended for a certain distance, thereby facilitating the removal of the rotor body.

[0021] In summary, the utility model has the following beneficial effects:

[0022] The utility model uses a spring arranged on a fixing rod to completely push the rotor body into the placement cavity. Under the action of the compression of the spring itself, the lower end of the limit plate is pushed out. Since the limit plate can rotate, the rotor bodies with different inner hole sizes can be limited, so that different types of rotors can be applied without changing the equipment. The storage groove provided on the positioning shaft allows the limit plate to rotate into the positioning shaft to ensure the normal installation of the rotor.

[0023] The utility model aligns the connecting pin with the limiting hole through the limiting hole on the fixing ring, and lowers the pressing block in the vertical direction to rotate, so that the connecting pin is clamped into the limiting hole, and the lower end of the pressing block contacts the upper end of the rotor body to press the rotor body to prevent it from falling off; the submersible pump in the water storage tank is started to pump out the coolant, and delivers it to the flow cavity in the magnetizing part through the delivery pipe to cool the magnetizing part, thereby indirectly cooling the magnetizing coil to prevent the magnetizing coil from being overheated and affecting its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the magnetizing component of the utility model;

[0026] Figure 3It is a schematic diagram of the cross-sectional structure of the positioning shaft of the utility model;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the water storage tank of the utility model.

[0028] Description of reference numerals:

[0029] 1. Equipment frame; 2. Magnetizing part; 3. Positioning shaft; 301. Fixing rod; 302. Spring; 303. Limiting plate; 304. Storage slot; 4. Rotor body; 5. Magnetizing coil; 6. Fixing ring; 601. Limiting hole; 602. Pressing block; 603. Connecting pin; 7. Placement cavity; 8. Water storage tank; 801. Submersible pump; 802. Delivery pipe; 803. Flow cavity; 804. Return pipe; 9. Ejector plate; 10. Ejector cylinder. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 The magnetizing device comprises an equipment frame 1, a magnetizing component 2 is fixed on the upper surface of the equipment frame 1, a placement cavity 7 is opened inside the magnetizing component 2, a limiting mechanism for limiting the rotor is fixed at the lower end inside the placement cavity 7, a clamping mechanism for clamping the rotor is fixed on the upper surface of the magnetizing component 2, a cooling mechanism for cooling the magnetizing component 2 is fixed inside the equipment frame 1, a rotor body 4 is arranged inside the placement cavity 7, a magnetizing coil 5 is fixed on the inner wall of the magnetizing component 2, the rotor body 4 to be magnetized is inserted into the placement cavity 7, the magnetizing coil 5 in the magnetizing component 2 is energized, and the rotor body 4 is magnetized.

[0032] Reference Figure 1 , Figure 2 and Figure 3The limiting mechanism includes a positioning shaft 3, which is fixed at the lower end of the placement cavity 7. A fixing rod 301 is fixed in the vertical direction of the positioning shaft 3. Four springs 302 are fixed in a circumferential array on the outer surface of the fixing rod 301. The ends of the four springs 302 are fixed with limiting plates 303 hingedly connected to the positioning shaft 3. When the rotor body 4 is fully pushed into the placement cavity 7 through the spring 302 arranged on the fixing rod 301, the lower end of the limiting plate 303 is pushed out under the action of the compression of the spring 302 itself. Since the limiting plate 303 can rotate, the end of the limiting plate 303 contacts the inner wall of the rotor, and the rotor body 4 with different inner hole sizes can be limited, so as to facilitate the application of different types of rotors. The outer surface of the positioning shaft 3 is provided with four receiving grooves 304 matching the limiting plate 303. Through the receiving grooves 304 opened on the positioning shaft 3, the limiting plate 303 can be rotated into the positioning shaft 3 to ensure the normal installation of the rotor.

[0033] Among them, the clamping mechanism includes a fixing ring 6, which is fixed on the upper surface of the magnetizing part 2. Two T-shaped limiting holes 601 are provided on the upper surface of the fixing ring 6. A clamping block 602 is connected to the upper end of the fixing ring 6. Two connecting pins 603 that are engaged with the limiting holes 601 are symmetrically fixed on the lower surface of the clamping block 602. The connecting pins 603 are aligned with the limiting holes 601 through the limiting holes 601 on the fixing ring 6. The clamping block 602 is lowered in the vertical direction and rotated so that the connecting pins 603 are engaged in the limiting holes 601. The lower end of the clamping block 602 contacts the upper end of the rotor body 4 to clamp the rotor body 4 to prevent it from falling off.

[0034] Reference Figure 1 , Figure 2 and Figure 4 The cooling mechanism includes a water tank 8, which is fixed inside the equipment frame 1. A submersible pump 801 is fixed inside the water tank 8 by bolts. The output end of the submersible pump 801 is connected to a delivery pipe 802. The end of the delivery pipe 802 is connected to a flow cavity 803 opened inside the magnetizing component 2. The submersible pump 801 in the water tank 8 is started to pump out the coolant, which is sent to the flow cavity 803 in the magnetizing component 2 through the delivery pipe 802 to cool the magnetizing component 2, thereby indirectly cooling the magnetizing coil 5 to prevent the magnetizing coil 5 from being overheated and affecting its service life; the upper half of the outer surface of the magnetizing component 2 is connected to a return pipe 804 that is interconnected with the flow cavity 803, and the return pipe 804 is interconnected with the water tank 8.

[0035] When in use, the coolant that continuously flows into the flow cavity 803 can flow into the water storage tank 8 again for recycling with the cooperation of the return pipe 804; the inner wall of the equipment frame 1 is fixed with an ejector cylinder 10 by bolts, and the telescopic end of the ejector cylinder 10 passes through the inner wall of the magnetizing part 2 and is fixed with an ejector plate 9, which is slidably connected to the positioning shaft 3. The ejector cylinder 10 drives the ejector plate 9 to move vertically, and the rotor body 4 is ejected and extended for a certain distance, thereby facilitating the removal of the rotor body 4.

[0036] The implementation principle of the utility model is as follows: before using the magnetizing device, the device frame 1 is first installed in a suitable position. When in use, the inner hole of the rotor body 4 to be magnetized is aligned with the positioning shaft 3 through the placement cavity 7 opened in the magnetizing member 2, the rotor body 4 is lowered in the vertical direction, the rotor body 4 and the positioning shaft 3 are connected, and then the rotor body 4 is pushed downward. When the lower end of the rotor body 4 contacts the limit plate 303, the limit plate 303 and the positioning shaft 3 are hingedly connected, and the spring 302 arranged on the fixing rod 301 is used to lock the rotor body 4. , so that the limiting plate 303 can rotate toward the receiving groove 304, and when the rotor body 4 is completely pushed into the placement cavity 7, the lower end of the limiting plate 303 is pushed out under the action of the compression of the spring 302 itself, so that the lower end of the limiting plate 303 contacts the inner hole of the rotor body 4, thereby limiting and fixing the rotor body 4, and when installing rotor bodies 4 of different models, the limiting plate 303 can be rotated to limit and fix the rotor bodies 4 with different inner hole sizes, so as to facilitate the application of different types of rotors;

[0037] Among them, through the limiting hole 601 on the fixing ring 6, the connecting pin 603 is aligned with the limiting hole 601, and after the pressing block 602 is lowered in the vertical direction, the pressing block 602 is rotated to make the connecting pin 603 snap into the limiting hole 601, and the lower end of the pressing block 602 contacts the upper end of the rotor body 4 to press the rotor body 4 to prevent it from falling off;

[0038] At the same time, the magnetizing coil 5 in the magnetizing member 2 is energized to magnetize the rotor body 4, and the submersible pump 801 in the water storage tank 8 is started to pump out the coolant and deliver it to the flow cavity 803 in the magnetizing member 2 through the delivery pipe 802, so as to cool the magnetizing member 2 and indirectly cool the magnetizing coil 5 to avoid the magnetizing coil 5 being overheated and affecting its service life;

[0039] In addition, the coolant that continuously flows into the flow cavity 803 can flow into the water tank 8 again for recycling with the cooperation of the return pipe 804. After the magnetization is completed, the ejection cylinder 10 drives the ejection plate 9 to move vertically, pushing the rotor body 4 out and extending it for a distance, thereby facilitating the removal of the rotor body 4.

[0040] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A magnetizing device, comprising a device frame (1), characterized in that: A magnetizing component (2) is fixed on the upper surface of the device frame (1), a placement cavity (7) is provided inside the magnetizing component (2), a limiting mechanism for limiting the rotor is fixed at the lower end inside the placement cavity (7), a clamping mechanism for clamping the rotor is fixed on the upper surface of the magnetizing component (2), a cooling mechanism for cooling the magnetizing component (2) is fixed inside the device frame (1), a rotor body (4) is arranged inside the placement cavity (7), and a magnetizing coil (5) is fixed on the inner wall of the magnetizing component (2).

2. The magnetizing device according to claim 1, characterized in that: The limiting mechanism comprises a positioning shaft (3), the positioning shaft (3) being fixed at the lower end inside the placement cavity (7), a fixing rod (301) being fixed in the vertical direction inside the positioning shaft (3), and four springs (302) being fixed in a circular array on the outer surface of the fixing rod (301).

3. The magnetizing device according to claim 2, characterized in that: A limiting plate (303) hingedly connected to the positioning shaft (3) is fixed to the ends of the four springs (302), and the outer surface of the positioning shaft (3) is provided with four receiving grooves (304) matching the limiting plates (303).

4. The magnetizing device according to claim 1, characterized in that: The clamping mechanism comprises a fixing ring (6), the fixing ring (6) being fixed on the upper surface of the magnetizing member (2), the upper surface of the fixing ring (6) being provided with two limiting holes (601), the upper end of the fixing ring (6) being connected with a clamping block (602), and the lower surface of the clamping block (602) being symmetrically fixed with two connecting pins (603) which are engaged with the limiting holes (601).

5. The magnetizing device according to claim 1, characterized in that: The cooling mechanism comprises a water storage tank (8), the water storage tank (8) being fixed inside the equipment frame (1), a submersible pump (801) being fixed inside the water storage tank (8) by means of bolts, an output end of the submersible pump (801) being connected to a delivery pipe (802), and a terminal end of the delivery pipe (802) being connected to a flow cavity (803) provided inside the magnetizing component (2).

6. The magnetizing device according to claim 5, characterized in that: The upper half of the outer surface of the magnetizing component (2) is connected to a return pipe (804) that is in communication with the flow chamber (803), and the return pipe (804) is in communication with the water storage tank (8).

7. The magnetizing device according to claim 2, characterized in that: An ejector cylinder (10) is fixed to the inner wall of the equipment frame (1) by means of bolts, and an ejector plate (9) is fixed to the telescopic end of the ejector cylinder (10) through the inner wall of the magnetizing member (2), and the ejector plate (9) is slidably connected to the positioning shaft (3).

Images