CN216959604U

CN216959604U - Permanent magnet synchronous motor mounting and positioning device

Info

Publication number: CN216959604U
Application number: CN202123388361.2U
Authority: CN
Inventors: 石飞虎; 孟虎; 李鹤
Original assignee: Anhui Mingteng Permanent Magnetic Machinery & Electrical Equipment Co ltd
Current assignee: Anhui Mingteng Permanent Magnetic Machinery & Electrical Equipment Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-12
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to the technical field of mechanical equipment manufacturing, in particular to a permanent magnet synchronous motor mounting and positioning device which comprises a base, wherein one end of the base is provided with an end cover, a stator is mounted in the base, the base is assembled on a base in a base fixing mechanism, a first connecting rod in a rotor fixing mechanism penetrates through the stator along the axial direction of the stator and is connected to one end of a rotor rotating shaft, the rotor and the stator are coaxial, the other end of the rotor rotating shaft is connected to a second connecting rod in the rotor fixing mechanism, the other end cover of the base is sleeved on the second connecting rod, the base fixing mechanism and the rotor fixing mechanism can move relatively along the axial direction of the stator so that the rotor moves to the mounting position in the base, and the other end cover of the base is fixed on a base so as to mount the rotor in the base; the utility model can ensure that a certain gap is always kept between the rotor and the stator in the installation process, so that the rotor can be quickly and nondestructively installed in the stator.

Description

Permanent magnet synchronous motor mounting and positioning device

Technical Field

The utility model relates to the technical field of mechanical equipment manufacturing, in particular to a permanent magnet synchronous motor mounting and positioning device.

Background

As a high-efficiency energy-saving motor, more and more users start to select a permanent magnet motor to replace an asynchronous motor, and the permanent magnet motor drives through the matching of magnetic force of a stator and a rotor.

Along with the continuous update of the kind of permanent magnet motor, its running speed is bigger and bigger, and the magnetic force of the magnet steel of installation also is stronger and stronger on the rotor punching, and quantity is also more and more. When the rotor is installed in the stator, the rotor with bearings installed at two ends is directly inserted into the stator, and then repeatedly adjusted until the rotor is installed in place, and finally an end cover is installed. Because the clearance between the rotor and the stator is small, when the traditional installation mode is used for installation, the stator and the rotor are easily adsorbed together under the action of magnetic force of the magnetic steel, so that the subsequent installation and movement are difficult; and friction is generated between the rotor and the stator, so that the surfaces of the rotor and the stator are easily damaged, and the service life of the motor is seriously influenced, thus urgent need to be solved.

Disclosure of Invention

In order to avoid and overcome the technical problems in the prior art, the utility model provides the permanent magnet synchronous motor mounting and positioning device which can ensure that a certain gap is always kept between the rotor and the stator in the mounting process, so that the rotor can be quickly and nondestructively mounted in the stator.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a PMSM installs positioner, which comprises a base, end cover and internally mounted have the stator are installed to the one end of frame, the frame assembly is on the base in frame fixed establishment, first connecting rod in the rotor fixed establishment passes the stator along the stator axial and connects the one end at the rotor pivot, the rotor is coaxial with the stator, the other end of rotor pivot is connected on the second connecting rod in the rotor fixed establishment and the other end cover cup joints on the second connecting rod of frame, frame fixed establishment and rotor fixed establishment can follow stator axis relative movement, so that the rotor removes the mounted position in the frame, the other end cover of frame is fixed on the base afterwards, and then install the rotor in the frame.

As a further scheme of the utility model: rotor fixed establishment is equipped with the first sleeve coaxial with the stator including fixing the first supporting block on the base at the top of first supporting block, first connecting rod be with first sleeve along stator axial sliding fit's the body of rod, first draw-in groove has been seted up with the axle center to the front end of first connecting rod, and the output of rotor pivot is coaxial to be cup jointed in first draw-in groove.

As a still further scheme of the utility model: a first limiting groove is formed in the first connecting rod along the rod length, a first screw hole is formed in the first sleeve, and a first screw rod matched with the first limiting groove is connected in the first screw hole.

As a still further scheme of the utility model: the rotor fixing mechanism further comprises a second supporting block fixed on the base, a second sleeve coaxial with the stator is arranged at the top of the second supporting block, the second connecting rod is a rod body in sliding fit with the second sleeve along the axial direction of the stator, a second clamping groove is formed in the front end of the second connecting rod coaxially, and the rear end of the rotor rotating shaft is coaxially sleeved in the second clamping groove.

As a still further scheme of the utility model: and a second limiting groove is formed in the second connecting rod along the rod length, a second screw hole is formed in the second sleeve, and a second screw rod matched with the second limiting groove is connected in the second screw hole.

As a still further scheme of the utility model: the base fixing mechanism comprises a guide block arranged at the bottom of the base along the axial direction of the stator, and a guide groove in sliding fit with the guide block is arranged on the base.

As a still further scheme of the utility model: the guide block is of a T-shaped block structure, and the guide groove is of a T-shaped groove structure matched with the guide block.

As a still further scheme of the utility model: the base is provided with a threaded hole, and the base is fixed on the base under the matching of the bolt and the threaded hole.

Compared with the prior art, the utility model has the beneficial effects that:

1. the rotor is fixed in the rotor fixing mechanism by the first connecting rod and the second connecting rod, and the rotor can be fixed more firmly and stably by adopting a mode of fixing the two ends; and the fixed rotor is coaxial with the stator, so that a certain gap can be always kept between the rotor and the stator in the installation process, the rotor and the stator are prevented from being adsorbed together in the installation process, the surfaces of the rotor and the stator are prevented from being scratched, the integrity of the internal structure of the whole motor and the sealing property of the surface coating of the corresponding component are kept, the service life of the motor is prolonged, and the failure rate of the motor is reduced. The rotor and the stator are coaxial, the rotor can be installed in place at one time, repeated adjustment is not needed, the working efficiency is improved, and the risk of accidents caused by multiple times of adjustment is reduced. The mode that the machine seat fixing mechanism and the rotor fixing mechanism can move mutually is adopted, so that the rotary formula is diversified, and the rotary formula is suitable for different installation conditions.

2. According to the utility model, the first clamping groove which is coaxial with the rotor rotating shaft is adopted, so that the rotor rotating shaft can be firmly sleeved, the risk of shaking and even falling off of the rotor rotating shaft in the installation process is avoided, and the smooth operation of the installation process is ensured.

3. The connecting rod is fixed in a mode that the limiting groove is matched with the screw rod, and the distance between the first connecting rod and the second connecting rod can be rapidly adjusted in such a mode so as to adapt to rotor rotating shafts with different lengths, so that the device can be assembled with various motors, and the application scene of the device is expanded.

4. The base fixing mechanism can reciprocate along the axial direction of the stator, and can ensure that the rotor and the stator cannot generate collision and scraping in the rotor installation process. The mode that the machine seat fixing mechanism moves and the rotor fixing mechanism does not move is adopted, because the rotor is fixed in a bridge shape with supporting points at two ends, the rotor can swing due to excessive movement, the position of the rotor is easy to change, and the rotor is easy to collide with the stator in the installation process.

5. The guide groove and the guide block are designed in a T-shaped structure, so that the base can only move along the groove length direction of the guide groove but not along the direction of the notch, the whole base can be prevented from moving upwards along the vertical direction under the adsorption of magnetic force, and the rotor and the stator are prevented from being adsorbed together.

Drawings

Fig. 1 is a schematic view of the structure of the assembly of the present invention.

Fig. 2 is a schematic structural view of the left fixing mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the left fixing mechanism of the present invention.

Fig. 4 is a schematic structural diagram of the stand fixing mechanism of the present invention.

10-base fixing mechanism 11-base 12-guide block 13-guide groove

20-rotor fixing mechanism 211-first support block 212-first sleeve 2121-first screw

213-first connecting rod 2131-first clamping groove 2132-first limiting groove

221-second support block 222-second sleeve 2221-second screw

223-second connecting rod 2231-second clamping groove 2232-second limiting groove

30-base

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in the embodiment of the present invention, a stator is already installed in a base of a permanent magnet synchronous motor, and a front end cover of the motor is already installed, and then a rotor needs to be installed in the base.

The base 30 is provided with a base fixing mechanism 10 and a rotor fixing mechanism 20. The base fixing mechanism 10 includes a base 11 disposed on a base 30, a guide block 12 having a T-shaped block structure is disposed at the bottom of the base 11, and a guide groove 13 having a T-shaped groove structure matched with the guide block 12 is disposed on the base 30. The length direction of the guide slot 13 is the same as the axial direction of the stator inside the base fixed on the base 11, and the base 11 can make reciprocating linear movement along the axial direction of the stator under the sliding fit of the guide block 12 and the guide slot 13. The bolt is in threaded fit with a threaded hole formed in the base 11, so that the base is fixed on the base 11.

The rotor fixing mechanism 20 provided on the base 30 includes a left side fixing mechanism and a right side fixing mechanism. The left fixing mechanism includes a first supporting block 211 fixed on the base 30, and a first sleeve 212 is disposed at a top end of the first supporting block 211, and the first sleeve 212 is coaxial with the stator. A first link 213 is slidably fitted to the first sleeve 212 in the axial direction, and the first link 213 is coaxial with the first sleeve 212. A first limiting groove 2132 is formed in the circumferential surface of the first link 213 along the axial direction of the first link 213; in order to clamp the first limiting groove 2132, a first screw hole is formed in the first sleeve 212, and a first screw rod 2121 is connected to the first screw hole through an internal thread; the first screw 2121 can be clamped in the first limiting groove 2132, so as to limit the first link 213 from moving in the first sleeve 212. A first locking groove 2131 is coaxially formed in the extending end of the first connecting rod 213, the inner diameter of the first locking groove 2131 is the same as the diameter of the output end of the rotor rotating shaft, and the output end of the rotor rotating shaft is sleeved in the first locking groove 2131.

The right fixing mechanism includes a second supporting block 221 fixed on the base 30, and a second sleeve 222 is provided at the top end of the second supporting block 221, and the second sleeve 222 is coaxial with the stator. A second connecting rod 223 is slidably sleeved on the second sleeve 222 along the axial direction, and the second connecting rod 223 is coaxial with the second sleeve 222. A second limit groove 2232 is arranged on the circumferential surface of the second connecting rod 223 along the axial direction of the second connecting rod 223; in order to clamp the second limiting groove 2232, a second screw hole is formed in the second sleeve 222, and a second screw 2221 is connected to the second screw through an internal thread; the second screw 2221 may be tightly locked in the second limiting groove 2232, so as to limit the movement of the second connecting rod 223 in the second sleeve 222. A second locking groove 2231 is coaxially formed at the extending end of the second connecting rod 223, the inner diameter of the second locking groove 2231 is the same as the diameter of the rear end of the rotor rotating shaft, and the rear end of the rotor rotating shaft is sleeved in the second locking groove 2231. Before the second connecting rod 223 is sleeved with the rotor rotating shaft, the rear end cover of the machine base is sleeved on the rod body of the second connecting rod 223, so that the rear end cover is timely fixed on the machine base when the rotor moves to the corresponding installation position.

At this time, the first and

second screws

2121 and 2221 fix the first and

second links

213 and 223, respectively, and the rotor is coaxial with the stator, so that the entire rotor is fixed in the rotor fixing mechanism 20. The base 11 drives the base to move towards the rotor along the axial direction of the stator, and a corresponding bearing is already installed on the rotating shaft of the rotor. When the bearing at the output end of the rotor rotating shaft enters the bearing mounting position of the front end cover, the whole rotor enters the corresponding rotor mounting position in the machine base; and then fixing the rear end cover on the machine base through a bolt, finally withdrawing the rotor fixing device, and taking down the machine base to finish the installation of the rotor.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a PMSM installs positioner, a serial communication port, which comprises a frame, end cover and internally mounted have the stator are installed to the one end of frame, the frame assembly is on base (11) in frame fixed establishment (10), first connecting rod (213) in rotor fixed establishment (20) pass the stator and connect the one end at the rotor pivot along the stator axial, the rotor is coaxial with the stator, the other end of rotor pivot is connected on second connecting rod (223) in rotor fixed establishment (20) and the other end cover cup joints on second connecting rod (223) of frame, frame fixed establishment (10) and rotor fixed establishment (20) can follow stator axis relative movement, so that the rotor removes the mounted position in the frame, the other end cover of frame is fixed on base (30) afterwards, and then install the rotor in the frame.

2. The permanent magnet synchronous motor mounting and positioning device according to claim 1, wherein the rotor fixing mechanism (20) comprises a first supporting block (211) fixed on the base (30), a first sleeve (212) coaxial with the stator is arranged at the top of the first supporting block (211), the first connecting rod (213) is a rod body in sliding fit with the first sleeve (212) along the axial direction of the stator, a first clamping groove (2131) is coaxially arranged at the front end of the first connecting rod (213), and the output end of the rotor rotating shaft is coaxially sleeved in the first clamping groove (2131).

3. The permanent magnet synchronous motor mounting and positioning device according to claim 2, wherein a first limiting groove (2132) is formed in the first connecting rod (213) along the length of the rod, a first screw hole is formed in the first sleeve (212), and a first screw rod (2121) matched with the first limiting groove (2132) is connected in the first screw hole.

4. The permanent magnet synchronous motor mounting and positioning device according to any one of claims 1-3, wherein the rotor fixing mechanism (20) further comprises a second supporting block (221) fixed on the base (30), a second sleeve (222) coaxial with the stator is arranged at the top of the second supporting block (221), the second connecting rod (223) is a rod body in sliding fit with the second sleeve (222) along the axial direction of the stator, a second clamping groove (2231) is coaxially formed in the front end of the second connecting rod (223), and the rear end of the rotor rotating shaft is coaxially sleeved in the second clamping groove (2231).

5. The permanent magnet synchronous motor mounting and positioning device according to claim 4, wherein a second limit groove (2232) is formed in the second connecting rod (223) along the length of the rod, a second screw hole is formed in the second sleeve (222), and a second screw rod (2221) matched with the second limit groove (2232) is connected in the second screw hole.

6. The PMSM mounting and positioning device according to claim 5, wherein the base fixing mechanism (10) includes a guide block (12) arranged at the bottom of the base (11) along the axial direction of the stator, and the base (30) is provided with a guide groove (13) in sliding fit with the guide block (12).

7. The PMSM mounting and positioning device according to claim 6, characterized in that the guide block (12) is of a T-shaped block structure, and the guide groove (13) is provided as a T-shaped groove structure matched with the guide block (12).

8. The mounting and positioning device for the permanent magnet synchronous motor according to claim 7, wherein the base (11) is provided with a threaded hole, and the base is fixed on the base (11) under the matching of a bolt and the threaded hole.