CN210490612U

CN210490612U - Servo control device for permanent magnet synchronous motor

Info

Publication number: CN210490612U
Application number: CN201921828069.8U
Authority: CN
Inventors: 李谷峰; 陈胜利
Original assignee: Shanghai Tongzhi Auto Parts Co Ltd
Current assignee: Shanghai Tongzhi Auto Parts Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-05-08
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a servo control device for PMSM, the top of base from left to right respectively fixedly connected with driving motor and servo control case, the equal fixedly connected with fixing base in both sides at base top, two the equal swing joint in inner chamber of fixing base has the rotating turret, two the equal threaded connection in left side of fixing base has fastening bolt, the utility model relates to a servo control technical field. This a servo control device for PMSM, when driving motor rotates, drive the runner frame at the fixing base internal rotation through rotating fastening bolt, drive first fixed lasso and the fixed lasso of second and hug closely together, the lug is pegged graft into in the recess, can be quick connect, the vibrations that the driving motor drive shaft during operation produced offset through first fixed lasso and the fixed lasso of second, can effectively reduce the luffing motion of drive shaft and output shaft junction, make driving motor pivoted more steady.

Description

Servo control device for permanent magnet synchronous motor

Technical Field

The utility model relates to a servo control technical field specifically is a servo control device for PMSM.

Background

The servo driver is also called as a servo controller and a servo amplifier, is a controller for controlling a servo motor, has the action similar to that of a frequency converter on a common alternating current motor, belongs to a part of a servo system, is mainly applied to a high-precision positioning system, generally controls the servo motor through three modes of position, speed and moment, and realizes the positioning of a high-precision transmission system.

When an existing servo controller works, the joint of an output shaft of a driving motor and a driving shaft often produces violent vibration when working, so that the power output is unstable, the output shaft of the driving motor is easy to deform and bend after a long time, and the servo controller cannot be suitable for precise transmission.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a servo control device for PMSM has solved driving motor output shaft and the during operation of drive shaft connection department and often can produce violent vibrations for during power take off, unstable, long time lead to driving motor output shaft to warp crooked easily, lead to can not being applicable to accurate driven problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a servo control device for a permanent magnet synchronous motor comprises a base, wherein the top of the base is fixedly connected with a driving motor and a servo control box respectively from left to right, the two sides of the top of the base are fixedly connected with fixed seats, the inner cavities of the two fixed seats are movably connected with rotating frames, the left sides of the two fixed seats are in threaded connection with fastening bolts, the right end of the fastening bolt sequentially penetrates through the fixed seat and the rotating frame from left to right and extends to the right side of the fixed seat, the surface of the fastening bolt is fixedly connected with the inner surfaces of the rotating frames, one sides of the two rotating frames opposite to each other are respectively and fixedly connected with a first fixed ferrule and a second fixed ferrule, the bottom of the first fixed ferrule and the bottom of the second fixed ferrule are mutually rotatably connected through a connecting frame, a convex block is fixedly connected to the left side of the first fixed ferrule, and a groove clamped with the surface of the convex block is formed in the surface of the second fixed ferrule.

Preferably, the inner cavities of the first fixed ring and the second fixed ring are both movably connected with a rotating bearing, and the inner surface of the inner ring of the rotating bearing is fixedly connected with the surface of the output shaft of the driving motor.

Preferably, driving motor's right side fixedly connected with shock attenuation board, servo control box's left side fixedly connected with push rod, the left end of push rod runs through the right side of shock attenuation board and extends to the internal surface of shock attenuation board, the left end of push rod and the internal surface sliding connection of shock attenuation board.

Preferably, the surface cover of push rod is equipped with reset spring to reset spring's left end and the right side fixed connection of shock attenuation board, reset spring's right-hand member and servo control box's left side fixed connection.

Preferably, the inner chamber of servo control box passes through mount fixedly connected with encoder and driving motor respectively, servo control box's surface is rotated and is connected with the heat dissipation frame, one side of heat dissipation frame runs through servo control box's front and extends to servo control box inner chamber, the one end of driving motor output shaft passes through shaft coupling fixedly connected with drive shaft, the one end of drive shaft and the back fixed connection who dispels the heat frame.

Preferably, the fixed surface of heat dissipation frame is connected with ventilative filter screen to the fixed surface of rotating turret is connected with first drainage plate, the top fixedly connected with second drainage plate of servo control case to the inner chamber fixedly connected with dust separation filter screen of servo control case.

Advantageous effects

The utility model provides a servo control device for PMSM. Compared with the prior art, the method has the following beneficial effects:

(1) the servo control device for the permanent magnet synchronous motor is characterized in that a driving motor and a servo control box are respectively and fixedly connected to the top of a base from left to right, fixing seats are fixedly connected to two sides of the top of the base, rotating frames are movably connected to inner cavities of the two fixing seats, fastening bolts are in threaded connection to the left sides of the two fixing seats, the right ends of the fastening bolts sequentially penetrate through the fixing seats and the rotating frames from left to right and extend to the right sides of the fixing seats, the surfaces of the fastening bolts are fixedly connected with the inner surfaces of the rotating frames, a first fixing ring and a second fixing ring are respectively and fixedly connected to one opposite sides of the two rotating frames, the bottoms of the first fixing ring and the second fixing ring are mutually and rotatably connected through a connecting frame, a convex block is fixedly connected to the left side of the first fixing ring, and a groove clamped with, when driving motor rotates, drive the runner frame at the fixing base internal rotation through rotating fastening bolt, drive first fixed lasso and the fixed lasso of second and hug closely together, during the recess was gone into in the grafting of lug, connection that can be quick, vibrations that the driving motor drive shaft during operation produced offset through first fixed lasso and the fixed lasso of second, can effectively reduce the luffing motion of drive shaft and output shaft junction for driving motor pivoted is more steady.

(2) The servo control device for the permanent magnet synchronous motor is characterized in that an encoder and a driving motor are respectively and fixedly connected with an inner cavity of a servo control box through a fixing frame, the surface of the servo control box is rotatably connected with a heat dissipation frame, one side of the heat dissipation frame penetrates through the front surface of the servo control box and extends to the inner cavity of the servo control box, one end of an output shaft of the driving motor is fixedly connected with a driving shaft through a coupler, one end of the driving shaft is fixedly connected with the back surface of the heat dissipation frame, after the coder works for a long time, the driving motor is started to drive the heat dissipation frame to rotate anticlockwise, hot air in the servo control box is pumped out through the drainage of the first drainage plate, external fresh air is pumped into the servo control box through the filtration of the dust-separation filter screen to complete heat exchange, the inside of the servo control box can be maintained at a lower temperature, and the service life of the encoder is prolonged.

Drawings

FIG. 1 is a front view of the structure of the present invention;

fig. 2 is a side view of the turret structure of the present invention;

fig. 3 is a schematic perspective view of the heat dissipation frame structure of the present invention;

fig. 4 is a cross-sectional view of the servo control box structure of the present invention.

In the figure: 1-base, 2-driving motor, 3-dust-isolating filter screen, 4-servo control box, 5-fixing base, 6-rotating frame, 7-fastening bolt, 8-first fixing ring, 9-second fixing ring, 10-connecting frame, 11-lug, 12-groove, 13-rotating bearing, 14-damping plate, 15-push rod, 16-reset spring, 17-fixing frame, 18-encoder, 19-driving motor, 20-driving shaft, 21-ventilating filter screen, 22-first flow guide plate, 23-second flow guide plate and 24-heat dissipation frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a servo control device for a permanent magnet synchronous motor comprises a base 1, the top of the base 1 is fixedly connected with a driving motor 2 and a servo control box 4 from left to right respectively, the driving motor 2 is communicated with a power supply, an inner cavity of the servo control box 4 is fixedly connected with an encoder 18 and a driving motor 19 respectively through a fixing frame 17, the driving motor 19 is communicated with the power supply, after the encoder 18 works for a long time, the driving motor 19 is started to drive a heat dissipation frame 24 to rotate anticlockwise, hot air in the servo control box 4 is pumped out through drainage of a first drainage plate 22, external fresh air is pumped into the servo control box 4 through filtration of a dust separation filter screen 3 to complete heat exchange, the interior of the servo control box 4 can be maintained at a lower temperature, the service life of the encoder 18 is prolonged, the surface of the servo control box 4 is rotatably connected with the heat dissipation frame 24, and the surface of the heat dissipation frame 24 is fixedly connected, the dust is separated by a breathable filter screen 21, a first drainage plate 22 is fixedly connected to the surface of the rotating frame 6, a second drainage plate 23 is fixedly connected to the top of the servo control box 4, a dust separation filter screen 3 is fixedly connected to the inner cavity of the servo control box 4, air is isolated by the dust separation filter screen 3, one side of the heat dissipation frame 24 penetrates through the front of the servo control box 4 and extends to the inner cavity of the servo control box 4, one end of an output shaft of a driving motor 19 is fixedly connected with a driving shaft 20 through a coupler, one end of the driving shaft 20 is fixedly connected with the back of the heat dissipation frame 24, a damping plate 14 is fixedly connected to the right side of the driving motor 2, impact generated by the work of the driving motor 2 is buffered by the damping plate 14, a push rod 15 is fixedly connected to the left side of the servo control box 4, a return spring 16 is sleeved on the surface of the push rod 15, the right end of a reset spring 16 is fixedly connected with the left side of a servo control box 4, the left end of a push rod 15 penetrates through the right side of a damping plate 14 and extends to the inner surface of the damping plate 14, the left end of the push rod 15 is connected with the inner surface of the damping plate 14 in a sliding manner, fixing seats 5 are fixedly connected with the two sides of the top of a base 1, rotating frames 6 are movably connected with inner cavities of the two fixing seats 5, fastening bolts 7 are connected with the left sides of the two fixing seats 5 in a threaded manner, the angle of the rotating frame 6 is adjusted through the fastening bolts 7, the right ends of the fastening bolts 7 sequentially penetrate through the fixing seats 5 and the rotating frames 6 from left to right and extend to the right sides of the fixing seats 5, the surfaces of the fastening bolts 7 are fixedly connected with the inner surface of the rotating frame 6, a first fixing ring 8 and a second fixing ring 9 are fixedly connected with one side of the two rotating frames 6 opposite to each, the left side of the first fixed ring 8 is fixedly connected with a convex block 11, the surface of the second fixed ring 9 is provided with a groove 12 which is clamped with the surface of the convex block 11, the clamping is more closely realized through the convex block 11 and the groove 12, inner cavities of the first fixed ring 8 and the second fixed ring 9 are both movably connected with a rotating bearing 13, the inner surface of the inner ring of the rotating bearing 13 is fixedly connected with the surface of the output shaft of the driving motor 2, when the driving motor 2 rotates, the rotating frame 6 is driven to rotate in the fixed seat 5 through rotating the fastening bolt 7, the first fixed ring 8 and the second fixed ring 9 are driven to cling together, the convex block 11 is inserted into the groove 12, the connection can be rapidly carried out, the vibration generated when the driving shaft of the driving motor 2 works is counteracted through the first fixed ring 8 and the second fixed ring 9, and the up-and-down swing of the connecting part of the, so that the driving motor 2 rotates more smoothly.

During operation, rotate fastening bolt 7 and drive rotating turret 6 at the 5 internal rotations of fixing base, drive first fixed lasso 8 and the fixed lasso 9 of second and hug closely together, lug 11 is pegged graft into in recess 12, connect, fix rolling bearing 13, reduce the vibrations that the 2 drive shaft during operation of driving motor produced, and during driving motor 2 vibrations, push shock attenuation board 14 extrusion reset spring 16 motion, start driving motor 19 and drive heat dissipation frame 24 anticlockwise rotation, drainage through first drainage plate 22, take out the hot-air in servo control box 4, outside fresh air is in suction servo control box 4 through the filtration of dust separation filter screen 3, accomplish the heat transfer.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a servo control device for PMSM, includes base (1), the top of base (1) from left to right respectively fixedly connected with driving motor (2) and servo control case (4), its characterized in that: the two sides of the top of the base (1) are fixedly connected with fixing seats (5), inner cavities of the two fixing seats (5) are movably connected with rotating frames (6), the left sides of the two fixing seats (5) are in threaded connection with fastening bolts (7), the right ends of the fastening bolts (7) sequentially penetrate through the fixing seats (5) and the rotating frames (6) from left to right and extend to the right sides of the fixing seats (5), the surfaces of the fastening bolts (7) are fixedly connected with the inner surfaces of the rotating frames (6), one sides of the two rotating frames (6) opposite to each other are respectively and fixedly connected with a first fixing ring (8) and a second fixing ring (9), the bottoms of the first fixing ring (8) and the second fixing ring (9) are mutually rotatably connected through connecting frames (10), and the left side of the first fixing ring (8) is fixedly connected with a convex block (11), and the surface of the second fixed ferrule (9) is provided with a groove (12) clamped with the surface of the bump (11).

2. The servo control apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that: the inner cavities of the first fixed ring (8) and the second fixed ring (9) are movably connected with a rotating bearing (13), and the inner surface of the inner ring of the rotating bearing (13) is fixedly connected with the surface of the output shaft of the driving motor (2).

3. The servo control apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that: the right side fixedly connected with shock attenuation board (14) of driving motor (2), the left side fixedly connected with push rod (15) of servo control box (4), the right side that shock attenuation board (14) were run through and extend to the internal surface of shock attenuation board (14) to the left end of push rod (15), the left end of push rod (15) and the internal surface sliding connection of shock attenuation board (14).

4. A servo control apparatus for a permanent magnet synchronous motor according to claim 3, characterized in that: the surface cover of push rod (15) is equipped with reset spring (16) to the left end of reset spring (16) and the right side fixed connection of shock attenuation board (14), the right-hand member of reset spring (16) and the left side fixed connection of servo control box (4).

5. The servo control apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that: the inner chamber of servo control case (4) passes through mount (17) fixedly connected with encoder (18) and driving motor (19) respectively, the surface rotation of servo control case (4) is connected with heat dissipation frame (24), one side of heat dissipation frame (24) runs through the front of servo control case (4) and extends to servo control case (4) inner chamber, shaft coupling fixedly connected with drive shaft (20) is passed through to the one end of driving motor (19) output shaft, the one end of drive shaft (20) and the back fixed connection of heat dissipation frame (24).

6. The servo control apparatus for a permanent magnet synchronous motor according to claim 5, characterized in that: the surface fixed connection of heat dissipation frame (24) has ventilative filter screen (21) to the surface fixed connection of rotating turret (6) has first drainage plate (22), the top fixedly connected with second drainage plate (23) of servo control case (4) to the inner chamber fixedly connected with dust separation filter screen (3) of servo control case (4).