Brushless motor with improved bearing seat structure

Abstract

The utility model provides a brushless motor with an improved bearing seat structure, and relates to the technical field of brushless motors, the brushless motor comprises a motor body, a stabilizing mechanism and a grounding mechanism, the stabilizing mechanism comprises a hollow pipe and wiping cotton, the wiping cotton is embedded in the hollow pipe, the hollow pipe and the wiping cotton are used for lubricating the output end of the motor body, and the grounding mechanism is connected with the motor body. Friction force is reduced, and stability of the motor body during rotation is improved; the grounding mechanism comprises a wire winding plate and a grounding plate, the grounding plate is located behind the wire winding plate, and the wire winding plate and the grounding plate are used for effectively preventing electromagnetic interference on the motor body. And meanwhile, redundant electromagnetism in the motor body can be conducted to the ground by utilizing the grounding plate, so that the normal operation of the motor body can be prevented from being influenced by external electromagnetic interference.

Description

TECHNICAL FIELD

[0001] The utility model relates to brushless motor technical field especially relates to an improved bearing seat structure brushless motor. BACKGROUND

[0002] The brushless DC motor is composed of a motor body and a driver, and is a typical mechatronic product. Since the brushless DC motor operates in a self-control mode, it does not require an additional starting winding on the rotor like a synchronous motor with heavy load starting under frequency conversion, and it also does not produce oscillation and out-of-step when the load suddenly changes.

[0003] Currently, in order to improve the stability of the motor rotating shaft during rotation, a bearing seat is usually used to connect with the motor to support the rotating shaft. When the motor rotating shaft rotates at high speed for a long time, the friction force of the balls in the bearing gradually increases, which affects the rotating efficiency of the motor rotating shaft during rotation.

[0004] At the same time, the brushless motor cannot shield external electromagnetic interference during use, which affects the performance of the brushless motor and thus affects the normal operation of the brushless motor.

[0005] Therefore, we propose an improved bearing seat structure brushless motor to solve the above problems. UTILITY MODEL CONTENTS

[0006] The wiping cotton can absorb the lubrication in the hollow tube. Since the surface of the wiping cotton extends into the interior of the hollow tube, the wiping cotton can lubricate the balls in the bearing, which can reduce the friction between the output rod and the bearing during rotation. At the same time, the grounding plate can conduct the excess electromagnetic in the motor body to the ground, thereby preventing external electromagnetic interference from affecting the normal operation of the motor body, to solve the problems in the above background technology.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: including motor body, stable mechanism and grounding mechanism, the stable mechanism includes hollow tube and wiping cotton, the wiping cotton is embedded into the interior of the hollow tube, the hollow tube and wiping cotton are used for lubricating the output end of the motor body, reducing the friction and improving the stability of the motor body during rotation.

[0008] The grounding mechanism includes a winding plate and a grounding plate, the grounding plate is located behind the winding plate, the winding plate and the grounding plate are used to effectively prevent electromagnetic interference of the motor body and prevent the motor body from being affected by external electromagnetic interference.

[0009] Preferably, the stabilizing mechanism further comprises an insertion plate, an interior of the insertion plate is fixedly connected with the hollow tube, a top surface of the insertion plate is provided with a longitudinal opening, an interior of the opening is fixedly connected with an injection pipe, the injection pipe is communicated with the hollow tube, and the top surface of the insertion plate is provided with a friction pad.

[0010] Preferably, the grounding mechanism further comprises an insulated copper core wire, the insulated copper core wire is wound on the surface of the winding plate, one end of the insulated copper core wire is provided with a metal frame, and the metal frame is fixedly connected with the grounding plate, and the insulated copper core wire is connected with the motor body.

[0011] Preferably, a top surface of the motor body is fixedly connected with a box body, an inner bottom wall of the box body is fixedly connected with a connecting rod, an interior of the connecting rod is sleeved with the winding plate, and an output end of the motor body is fixedly connected with an output rod.

[0012] Preferably, a bottom surface of the motor body is threadedly connected with a bearing seat through bolts, an interior of the bearing seat is embeddedly connected with the insertion plate, an interior of the bearing seat is embedded with a bearing, an outer surface of the bearing is surrounded with a through hole, and the through hole is attached with the wiping cotton.

[0013] Preferably, an interior of the bearing seat is embedded with a sealing pad, an interior of the sealing pad is attached with the interior of the bearing, and one end of the hollow tube close to the bearing penetrates the interior of the sealing pad.

[0014] Compared with the prior art, the utility model has the advantages and positive effects that:

[0015] 1. In the utility model, the injection pipe can inject external lubricating oil into the interior of the hollow tube, the wiping cotton in the hollow tube can adsorb the lubricating oil, the insertion plate is embedded into the interior of the bearing seat again, the wiping cotton is attached to the through hole on the surface of the bearing through the continuous pushing of the insertion plate, the wiping cotton is extruded according to the rotation of the bearing, the lubricating oil in the wiping cotton can be wiped on the surface of the ball to lubricate, thereby the friction of the ball in the bearing can be reduced, and the rotation speed of the shaft is prevented from being affected by the friction of the ball in the bearing.

[0016] 2. In the utility model, when external electromagnetic interference occurs to the motor body, the shaking of the motor body can determine the electromagnetic interference in the motor body, the winding plate is lifted upwards, the winding plate can slide on the surface of the connecting rod, the winding plate can have a certain distance from the inner bottom wall of the box body through the lifting of the winding plate, the insulated copper core wire can be taken out from the surface of the winding plate, the grounding plate is attached to the ground or directly inserted into the soil, the safety of the current conduction can be ensured through the insulated copper core wire, the redundant electromagnetic in the motor body can be conducted to the ground through the attachment of the grounding plate to the ground or the insertion into the soil, thereby the purpose of preventing electromagnetic interference of the motor body can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides an improved bearing seat structure brushless motor in main view structure perspective drawing;

[0018] Figure 2 The utility model provides an improved bearing seat structure brushless motor in bearing seat local structure perspective drawing;

[0019] Figure 3 The utility model provides an improved bearing seat structure brushless motor in stable mechanism structure perspective drawing;

[0020] Figure 4 The utility model provides an improved bearing seat structure brushless motor in box body structure perspective drawing.

[0021] Legend: 1, motor body;2, connecting rod;3, box body;4, bearing seat;5, output rod;6, stable mechanism;601, plugboard;602, friction pad;603, injection pipe;604, hollow pipe;605, wiping cotton;7, grounding mechanism;701, winding board;702, metal frame;703, grounding plate;704, insulated copper core wire;8, sealing pad;9, bearing. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples.It should be explained that the embodiment of the present application and the features in the embodiment can be combined with each other without conflict.

[0023] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific embodiment disclosed in the following disclosure.

[0024] Example 1, as shown in the accompanying Figure 1 - Figure 4 As shown in the accompanying, including motor body 1, stable mechanism 6 and grounding mechanism 7, stable mechanism 6 includes hollow pipe 604 and wiping cotton 605, wiping cotton 605 is embedded into the inside of hollow pipe 604, hollow pipe 604 and wiping cotton 605 are used to lubricate the output end of motor body 1, reduce friction and improve the stability when motor body 1 rotates;

[0025] Grounding mechanism 7 includes winding board 701 and grounding plate 703, grounding plate 703 is located behind winding board 701, winding board 701 and grounding plate 703 are used to effectively prevent motor body 1 from electromagnetic interference, prevent motor body 1 from being affected by external electromagnetic interference and normal use.

[0026] The effect achieved by the whole embodiment 1 is that the wiping cotton 605 can absorb the lubrication in the hollow tube 604, and the surface of the wiping cotton 605 extends out of the inside of the hollow tube 604, so that the wiping cotton 605 can lubricate the rolling balls in the bearing 9, and the friction between the output rod 5 and the bearing 9 during rotation can be reduced, and the grounding plate 703 can ground the excess electromagnetic conduction in the motor body 1 to the ground, so that the external electromagnetic interference can be prevented from affecting the normal operation of the motor body 1.

[0027] As shown in the embodiment 2, Figure 1 Figure 3 The stable mechanism 6 further comprises an insertion plate 601, the inside of the insertion plate 601 is fixedly connected with the hollow tube 604, the upper surface of the insertion plate 601 is provided with a longitudinal opening, the inside of the opening is fixedly connected with an injection tube 603, the injection tube 603 is communicated with the hollow tube 604, and the upper surface of the insertion plate 601 is provided with a friction pad 602.

[0028] The effect achieved by the whole embodiment 2 is that the insertion plate 601 is separated from the inside of the bearing seat 4, the external lubricating oil can be injected into the inside of the hollow tube 604 through the injection tube 603, the wiping cotton 605 in the hollow tube 604 can absorb the lubricating oil, the insertion plate 601 is embedded into the inside of the bearing seat 4 again, the wiping cotton 605 is continuously pushed by the insertion plate 601 to be attached to the through hole on the surface of the bearing 9, the wiping cotton 605 is extruded according to the rolling rotation of the bearing 9, the lubricating oil in the wiping cotton 605 can be wiped on the surface of the rolling balls to lubricate, so that the friction of the rolling balls in the bearing 9 can be reduced, and the rotation speed of the shaft is prevented from being affected by the friction of the rolling balls in the bearing 9.

[0029] As shown in the embodiment 3, Figure 1 Figure 4 The grounding mechanism 7 further comprises an insulated copper core wire 704, the insulated copper core wire 704 is wound on the surface of the winding plate 701, one end of the insulated copper core wire 704 is provided with a metal frame 702, the metal frame 702 is fixedly connected with the grounding plate 703, the insulated copper core wire 704 is connected with the motor body 1, the upper surface of the motor body 1 is fixedly connected with a box body 3, the inner bottom wall of the box body 3 is fixedly connected with a connecting rod 2, the outer surface of the connecting rod 2 is connected with the inside of the winding plate 701 in a sleeved mode, and the output end of the motor body 1 is fixedly connected with an output rod 5.

[0030] ​​The effect achieved by the whole embodiment 3 is that the insulated copper core wire 704 is connected with the motor body 1, when the motor body 1 is interfered by external electromagnetic, the jitter of the motor body 1 can determine the electromagnetic interference in the motor body 1, the winding plate 701 is lifted up, the winding plate 701 can slide on the surface of the connecting rod, the winding plate 701 is lifted up, the winding plate 701 can have a certain distance with the inner bottom wall of the box body, the insulated copper core wire 704 can be taken out from the surface of the winding plate 701, the grounding plate 703 is attached to the ground or directly inserted into the soil, the safety of the current conduction of the insulated copper core wire 704 is used, the grounding plate 703 is attached to the ground or inserted into the soil, the excess electromagnetic in the motor body 1 is conducted to ground, thereby the purpose of preventing electromagnetic interference of the motor body 1 is achieved.

[0031] As shown in embodiment 4, Figure 1 Figure 2 The lower surface of the motor body 1 is threadedly connected with the bearing seat 4, the inside of the bearing seat 4 is embeddedly connected with the plug-in plate 601, the inside of the bearing seat 4 is embedded with the bearing 9, the outer surface of the bearing 9 is provided with a through hole, the through hole is attached to the wiping cotton 605, the inside of the bearing seat 4 is embedded with the sealing gasket 8, the inside of the sealing gasket 8 is attached to the inside of the bearing 9, and the one end of the hollow tube 604 close to the bearing 9 penetrates the inside of the sealing gasket 8.

[0032] The effect achieved by the whole embodiment 4 is that the sealing gasket 8 can seal the connection between the output rod 5 and the bearing, prevent the outside dust from entering the connection between the output rod 5 and the bearing 9 to affect the normal rotation of the output rod 5, the bearing seat 4 can stabilize the operation of the output rod 5, and the surface of the bearing is provided with a plurality of through holes, the lubricating oil in the wiping cotton 605 can lubricate the surface of the ball in the bearing 9 through the through holes.

[0033] The working principle of the whole device is that the plug-in plate 601 is pulled out from the inside of the bearing seat 4, the outside lubricating oil is injected into the inside of the hollow tube 604 through the injection tube 603, the wiping cotton 605 in the hollow tube 604 can adsorb the lubricating oil, the plug-in plate 601 is embedded into the inside of the bearing seat 4 again, the wiping cotton 605 is attached to the through hole on the surface of the bearing 9 through the continuous pushing of the plug-in plate 601, the wiping cotton 605 is extruded according to the rolling rotation of the bearing 9, and the lubricating oil in the wiping cotton 605 can be wiped on the surface of the ball for lubrication.

[0034] ​When the outside electromagnetic interference motor body 1, the motor body 1 can be determined by the jitter of electromagnetic interference in the motor body 1, the winding plate 701 is lifted up, so that the winding plate 701 can slide on the surface of the connecting rod, through the lifting of the winding plate 701, the winding plate 701 can be spaced from the inner bottom wall of the box body, the insulating copper core wire 704 can be taken out from the surface of the winding plate 701, the grounding plate 703 is adhered to the ground or directly inserted into the soil, the safety of current conduction can be realized by using the insulating copper core wire 704, the grounding plate 703 is adhered to the ground or inserted into the soil, the excess electromagnetic in the motor body 1 can be conducted to ground, the three-phase alternating current phase difference 120° of the motor body 1 is utilized, the stator is sequentially electrified to generate a rotating magnetic field, the rotor is synchronously rotated, the Hall sensor detects the rotor position, and the controller switches two-phase power supply according to the signal. Every time the current direction is switched, the rotor rotates 60°, and six-step commutation method realizes continuous rotation.

[0035] The above is only the preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the protection scope of the present application.

Claims

1. A brushless motor with an improved bearing housing structure, characterized in that: It includes a motor body (1), a stabilizing mechanism (6) and a grounding mechanism (7). The stabilizing mechanism (6) includes a hollow tube (604) and a wiping cotton (605). The wiping cotton (605) is embedded inside the hollow tube (604). The hollow tube (604) and the wiping cotton (605) are used to lubricate the output end of the motor body (1), reduce friction and improve the stability of the motor body (1) when it rotates. The grounding mechanism (7) includes a winding plate (701) and a grounding plate (703). The grounding plate (703) is located behind the winding plate (701). The winding plate (701) and the grounding plate (703) are used to effectively protect the motor body (1) from electromagnetic interference and prevent the motor body (1) from being affected by external electromagnetic interference during normal use.

2. The brushless motor with an improved bearing housing structure according to claim 1, characterized in that: The stabilizing mechanism (6) also includes a insert plate (601), the interior of which is fixedly connected to a hollow tube (604). The upper surface of the insert plate (601) has a longitudinal opening, the interior of which is fixedly connected to an injection tube (603), and the injection tube (603) communicates with the hollow tube (604). The upper surface of the insert plate (601) is provided with a friction pad (602).

3. The brushless motor with an improved bearing housing structure according to claim 1, characterized in that: The grounding mechanism (7) also includes an insulated copper core conductor (704), which is wound around the surface of the winding plate (701). One end of the insulated copper core conductor (704) is equipped with a metal frame (702), and the metal frame (702) is fixedly connected to the grounding plate (703). The insulated copper core conductor (704) is connected to the motor body (1).

4. A brushless motor with an improved bearing housing structure according to claim 1, characterized in that: The upper surface of the motor body (1) is fixedly connected to a box (3), the inner bottom wall of the box (3) is fixedly connected to a connecting rod (2), and the outer surface of the connecting rod (2) is sleeved and connected to the inside of the winding plate (701). The output end of the motor body (1) is fixedly connected to an output rod (5).

5. A brushless motor with an improved bearing housing structure according to claim 1, characterized in that: The lower surface of the motor body (1) is connected to a bearing seat (4) by bolt thread, and the interior of the bearing seat (4) is fitted and connected to the insert plate (601). The bearing seat (4) contains a bearing (9), and the outer surface of the bearing (9) is surrounded by a through hole, which is in contact with the wiping cotton (605).

6. A brushless motor with an improved bearing housing structure according to claim 1, characterized in that: The bearing housing (4) has a sealing gasket (8) embedded inside, and the inside of the sealing gasket (8) fits the inside of the bearing (9). The hollow tube (604) passes through the inside of the sealing gasket (8) at one end near the bearing (9).

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