Detection device for outer rotor of direct-current brushless motor

Abstract

The utility model discloses a detection device for an outer rotor of a direct-current brushless motor, which relates to the technical field of direct-current brushless motor production and comprises a case body, a positioning block arranged at the top of the case body, a pushing part arranged at the side part of the positioning block, a cover top arranged right above a rotary table, and a driving part arranged below the cover top and used for driving the rotary table to rotate. The side, away from the pushing part, of the rotary table is provided with a detection part used for detecting the concentricity of the outer rotor, the detection part comprises a plurality of measuring meters arranged on a movable frame, the measuring end faces of the measuring meters towards the outer rotor, and the side of the movable frame is connected with the telescopic shaft end of a third electric push rod. Aiming at the problems, the utility model provides the detection device for the outer rotor of the direct-current brushless motor, which can conveniently and quickly detect the concentricity of the outer rotor, can meet the detection requirements aiming at the outer rotors with different heights, is relatively high in safety and does not need staff to repeatedly disassemble and assemble a measuring meter.

Description

Technical Field

[0001] The utility model relates to the technical field of direct current brushless motor production, in particular to a detection device for an outer rotor of a direct current brushless motor. Background Art

[0002] The brushless DC motor consists of a motor body and a driver, and is a typical mechatronic product. A brushless motor is a motor without brushes and commutators (or collector rings), also known as a commutatorless motor. For a brushless DC motor, the performance of the outer rotor affects the overall performance of the motor. When examining the performance of the outer rotor, its concentricity is mainly considered. However, there is currently a lack of a device that can conveniently detect the concentricity of the outer rotor. For outer rotors of different heights, a fast and effective concentricity measurement operation is required.

[0003] Therefore, our company has developed a detection device for the outer rotor of a brushless DC motor. It has a high degree of mechanization and can quickly and easily detect the concentricity of the outer rotor. It can also meet the detection requirements for outer rotors of different heights. It has high safety and does not require employees to repeatedly disassemble and install measuring meters, thereby reducing the labor intensity of employees and improving labor efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a detection device for the outer rotor of a brushless DC motor. The device has a high degree of mechanization and can conveniently and quickly detect the concentricity of the outer rotor. It can also meet the detection requirements for outer rotors of different heights. It has high safety and does not require employees to repeatedly disassemble and install measuring meters, thereby reducing the labor intensity of enterprise employees and improving labor efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A detection device for a brushless DC motor comprises a chassis, a positioning block for placing an outer rotor is arranged on the top of the chassis, a pushing part for pushing the outer rotor onto a turntable is arranged on the side of the positioning block, a cover top is arranged directly above the turntable, a driving part for rotating the turntable is arranged below the cover top, a detection part for detecting the concentricity of the outer rotor is arranged on the side of the turntable away from the pushing part, the detection part comprises a plurality of measuring gauges arranged on a movable frame, the measuring ends of the measuring gauges face the outer rotor, and the side of the movable frame is connected to the telescopic shaft end of a third electric push rod.

[0007] As a further improvement of the above solution, the pushing portion includes a pushing block with an arc-shaped plate structure, and an insert block on the side of the pushing block is matched with a clamping block at the telescopic shaft end of the first electric push rod.

[0008] As a further improvement of the above solution, the guide rod at the bottom of the clamping block passes horizontally through the guide sleeve, and the positioning block has a semicircular arc block structure.

[0009] As a further improvement of the above scheme, the top of the cover includes a pressure cover plate matched with the inner hole of the outer rotor, the pressure cover plate is connected to the connecting plate of the telescopic shaft end of the second electric push rod, a first bearing is arranged between the connecting plate and the pressure cover plate, and the second electric push rod is arranged on the top inner wall of the support plate.

[0010] As a further improvement of the above solution, the driving part includes a rotating shaft arranged on the lower surface of the middle part of the turntable, and the driven pulley on the rotating shaft is connected to the driving pulley on the output shaft of the motor through a belt.

[0011] As a further improvement of the above solution, the lower end of the rotating shaft extends into the mounting seat, and a second bearing is arranged between the rotating shaft and the mounting seat.

[0012] Compared with the prior art, the beneficial effects of the utility model are: a high degree of mechanization, a device that can conveniently and quickly detect the concentricity of the outer rotor, and can also meet the detection requirements for outer rotors of different heights. It has high safety and does not require employees to repeatedly disassemble and install measuring meters, thereby reducing the labor intensity of enterprise employees and improving labor efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the main structure of the utility model in the detection state.

[0015] Figure 3 for Figure 1 Schematic diagram of the structure viewed from AA in the middle.

[0016] Figure 4 It is a partial enlarged schematic diagram of the push block position of the utility model.

[0017] Figure 5 It is a partial enlarged schematic diagram of the position of the gland plate of the utility model.

[0018] The text labels in the figure are as follows: 1. chassis; 2. pushing part; 3. top of cover; 4. outer rotor; 5. detection part; 6. driving part; 7. turntable; 8. positioning block; 201. guide rod; 202. guide sleeve; 203. first electric push rod; 204. insert block; 205. clamping block; 206. push block; 301. support plate; 302. second electric push rod; 303. connecting plate; 304. first bearing; 305. pressure cover plate; 501. movable frame; 502. measuring table; 503. third electric push rod; 601. driving pulley; 602. belt; 603. motor; 604. second bearing; 605. mounting seat; 606. rotating shaft; 607. driven pulley. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution, the utility model is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0020] like Figure 1-5 As shown, the specific scheme of this embodiment is: a detection device for a brushless DC motor, comprising a chassis 1, a positioning block 8 for placing an outer rotor 4 is arranged on the top of the chassis 1, a pushing portion 2 for pushing the outer rotor 4 onto a turntable 7 is arranged on the side of the positioning block 8, a cover top 3 is arranged directly above the turntable 7, a driving portion 6 for rotating the turntable 7 is arranged below the cover top 3, a detection portion 5 for detecting the concentricity of the outer rotor 4 is arranged on the side of the turntable 7 away from the pushing portion 2, the detection portion 5 includes a plurality of measuring gauges 502 arranged on a movable frame 501, the measuring ends of the measuring gauges 502 face the outer rotor 4, and the side of the movable frame 501 is connected to the telescopic shaft end of the third electric push rod 503.

[0021] Specifically, the outer rotor 4 is in a cylindrical structure. The staff places it at the position of the positioning block 8, drives the first electric push rod 203, and the push block 206 pushes the outer rotor 4 to make it stay on the turntable 7, drives the second electric push rod 302, and the connecting plate 303 drives the pressure cover plate 305 to descend. The pressure cover plate 305 is pressed down and extends into the outer rotor 4, and the outer rotor 4 is clamped on the turntable 7, drives the motor 603, and the shaft 606 performs a rotational motion, drives the third electric push rod 503, and the telescopic shaft end of the third electric push rod 503 drives the movable frame 501 to approach the outer surface of the outer rotor 4, and the measuring end of the measuring meter 502 touches the outer surface of the outer rotor 4, so as to detect the concentricity of the outer rotor 4. The device has a high degree of mechanization and can conveniently and quickly detect the concentricity of the outer rotor 4. It can also meet the detection requirements for outer rotors 4 of different heights, has high safety, does not require employees to repeatedly disassemble and install the measuring meter 502, reduces the labor intensity of enterprise employees, and improves labor efficiency.

[0022] like Figure 1As shown, as a preferred embodiment of the above embodiment, the pushing portion 2 includes a pushing block 206 with an arc-shaped plate structure, and the insert block 204 on the side of the pushing block 206 is matched with the clamping block 205 at the telescopic shaft end of the first electric push rod 203.

[0023] Specifically, the push block 206 is an arc-shaped plate structure and is matched with the outer circle of the outer rotor 4.

[0024] like Figure 1 As shown, as a preferred embodiment of the above embodiment, the guide rod 201 at the bottom of the clamping block 205 horizontally passes through the guide sleeve 202, and the positioning block 8 is a semicircular block structure.

[0025] Specifically, the guide rod 201 and the guide sleeve 202 play a guiding role, thereby improving the stability of the movement of the push block 206 .

[0026] like Figure 1 As shown, as a preferred embodiment of the above embodiment, the cover top 3 includes a pressure cover plate 305 matched with the inner hole of the outer rotor 4, the pressure cover plate 305 is connected to the connecting plate 303 of the telescopic shaft end of the second electric push rod 302, a first bearing 304 is arranged between the connecting plate 303 and the pressure cover plate 305, and the second electric push rod 302 is arranged on the inner wall of the top of the support plate 301.

[0027] Specifically, the pressure cover plate 305 is matched with the top of the outer rotor 4. The pressure cover plate 305 is pressed down to clamp the outer rotor 4 on the turntable 7. When the turntable 7 rotates, the outer rotor 4 and the pressure cover plate 305 are driven to rotate together, thereby providing basic conditions for measuring the concentricity of the outer rotor 4.

[0028] like Figure 1 As shown, as a preferred embodiment of the above embodiment, the driving unit 6 includes a rotating shaft 606 arranged on the lower surface of the middle part of the turntable 7, and the driven pulley 607 on the rotating shaft 606 is connected to the driving pulley 601 on the output shaft of the motor 603 through a belt 602.

[0029] Specifically, the motor 603 is driven to cause the rotating shaft 606 to perform a rotational motion.

[0030] like Figure 1 As shown, as a preferred embodiment of the above embodiment, the lower end of the rotating shaft 606 extends into the mounting seat 605 , and a second bearing 604 is arranged between the rotating shaft 606 and the mounting seat 605 .

[0031] Specifically, a second bearing 604 is disposed between the rotating shaft 606 and the mounting seat 605 , and the mounting seat 605 is disposed.

[0032] The specific working principle of this utility model:

[0033] The staff places it at the position of the positioning block 8, drives the first electric push rod 203, and the push block 206 pushes the outer rotor 4 to make it stay on the turntable 7, drives the second electric push rod 302, and the connecting plate 303 drives the pressure cover plate 305 to descend, and the pressure cover plate 305 is pressed down and extends into the outer rotor 4, and the outer rotor 4 is clamped on the turntable 7, drives the motor 603, and the shaft 606 rotates, drives the third electric push rod 503, and the telescopic shaft end of the third electric push rod 503 drives the movable frame 501 to approach the outer surface of the outer rotor 4, and the measuring end of the measuring meter 502 touches the outer surface of the outer rotor 4, so as to detect the concentricity of the outer rotor 4, the mechanization degree is high, and the device can conveniently and quickly detect the concentricity of the outer rotor 4, and can also meet the detection requirements for outer rotors 4 of different heights, with high safety, no need for employees to repeatedly disassemble and install the measuring meter 502, reduce the labor intensity of employees of the enterprise, and improve labor efficiency, for outer rotors 4 of different heights, multiple measuring meters 502 can also play a measuring role.

[0034] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. The above are only preferred implementations of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A detection device for an outer rotor of a brushless DC motor, characterized in that: The invention comprises a chassis (1), a positioning block (8) for placing an outer rotor (4) is arranged on the top of the chassis (1), a pushing portion (2) for pushing the outer rotor (4) onto a turntable (7) is arranged on the side of the positioning block (8), a cover top (3) is arranged directly above the turntable (7), a driving portion (6) for causing the turntable (7) to perform a rotational motion is arranged below the cover top (3), a detection portion (5) for detecting the concentricity of the outer rotor (4) is arranged on a side of the turntable (7) away from the pushing portion (2), the detection portion (5) comprising a plurality of measuring gauges (502) arranged on a movable frame (501), the measuring ends of the measuring gauges (502) facing the outer rotor (4), and the side of the movable frame (501) is connected to the telescopic shaft end of a third electric push rod (503).

2. A detection device for an outer rotor of a brushless DC motor according to claim 1, characterized in that: The pushing portion (2) comprises a pushing block (206) in an arc-shaped plate-like structure, and an inserting block (204) on the side of the pushing block (206) is matched with a clamping block (205) at the end of the telescopic shaft of the first electric push rod (203).

3. A detection device for an outer rotor of a brushless DC motor according to claim 2, characterized in that: The guide rod (201) at the bottom of the clamping block (205) passes through the guide sleeve (202) horizontally, and the positioning block (8) is in a semicircular block structure.

4. A detection device for an outer rotor of a brushless DC motor according to claim 3, characterized in that: The cover top (3) comprises a pressure cover plate (305) matched with the inner hole of the outer rotor (4); the pressure cover plate (305) is connected to a connecting plate (303) at the telescopic shaft end of the second electric push rod (302); a first bearing (304) is arranged between the connecting plate (303) and the pressure cover plate (305); and the second electric push rod (302) is arranged on the inner wall of the top of the support plate (301).

5. A detection device for an outer rotor of a brushless DC motor according to claim 4, characterized in that: The driving part (6) comprises a rotating shaft (606) arranged on the lower surface of the middle part of the turntable (7), and a driven pulley (607) on the rotating shaft (606) is connected to a driving pulley (601) on the output shaft of the motor (603) through a belt (602).

6. A detection device for an outer rotor of a brushless DC motor according to claim 5, characterized in that: The lower end of the rotating shaft (606) extends into the mounting seat (605), and a second bearing (604) is arranged between the rotating shaft (606) and the mounting seat (605).

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