CN220087129U

CN220087129U - Motor rotating shaft fixing device

Info

Publication number: CN220087129U
Application number: CN202321713839.0U
Authority: CN
Inventors: 蔡丹红; 马海波
Original assignee: Shanghai Pinxing Explosion Proof Motor Co ltd
Current assignee: Shanghai Pinxing Explosion Proof Motor Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-11-24
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a motor rotating shaft fixing device, which relates to the technical field of motor manufacturing. One end of the pressing frame is rotationally connected with the upper end of one side of the bracket, and the other end of the pressing frame is detachably connected with the upper end of the other side of the bracket through a locking piece. The support and the compression frame enclose a space of stepping down for the motor rotating shaft to pass through, one side of the support, which is close to the compression frame, is provided with a supporting component, the compression frame is provided with a guide post, the guide post penetrates through the compression frame, and the compression piece is in threaded connection with the inner side wall of the guide post. The utility model can fix the motor rotating shaft when assembling the rotor core.

Description

Motor rotating shaft fixing device

Technical Field

The utility model relates to the technical field of motor manufacturing, in particular to a motor rotating shaft fixing device.

Background

The motor rotor comprises a rotating shaft and a rotor iron core fixedly sleeved on the rotating shaft, and the rotating shaft and the rotor iron core are required to be assembled and fixed during production. The motor outputs mechanical power through the rotary shaft during operation, and thus, reliability of the coupling of the rotor core to the shaft is important.

At present, the connection of the rotor core and the rotating shaft is generally realized by diameter matching, torque and rotating speed are transmitted by means of key or interference connection, the rotating shaft penetrates through the whole rotor core, and the front and rear bearings are adopted at the two ends to support the rotor core, so that a motor rotor structure is formed.

In order to ensure the coaxiality and the mounting precision of the whole structure of the rotor core, the rotating shaft needs to be fixed in the axial direction during assembly, and meanwhile, the rotation of the rotating shaft is not influenced. However, because the overall mass of the rotating shaft and the rotor core is large, the rotating shaft is fixed by manpower, and the manpower has large instability, so that the stability of the rotating shaft of the motor is difficult to ensure.

Disclosure of Invention

In order to fix a motor rotating shaft and facilitate assembly of a rotor core and the rotating shaft, the utility model provides a motor rotating shaft fixing device.

The utility model provides a motor rotating shaft fixing device, which adopts the following technical scheme:

the motor rotating shaft fixing device comprises a bracket, a pressing frame and a pressing piece, wherein the pressing frame is connected with the bracket and is arranged up and down oppositely;

the support with compress tightly the frame encloses into the space of stepping down that is used for supplying the pivot to pass, be provided with supporting component on the support, compress tightly the piece and pass compress tightly the frame and towards supporting component extends.

Through adopting above-mentioned technical scheme, pass the support with the one end of motor shaft and compress tightly the space of stepping down that the frame encloses, support assembly produces the supporting role to the pivot tip, will compress tightly the orientation removal of piece towards support assembly until compressing tightly piece tip and motor shaft lateral wall butt, press from both sides tightly motor shaft. Therefore, the motor rotating shaft is jointly fixed by the supporting component and the pressing piece, so that the assembly of the next step is facilitated; the pressing piece moves in the direction away from the supporting component, and the motor rotating shaft is loosened, so that normal rotation of the pressing piece after assembly is not affected.

Optionally, be provided with the guide post on the pressure frame, the guide post runs through the pressure frame, compress tightly the piece with guide post inside wall threaded connection.

Through adopting above-mentioned technical scheme, compress tightly the piece and pass the guide post that corresponds on the pressure frame and with guide post threaded connection. The pressing piece can be close to or far away from the motor rotating shaft through rotating the pressing piece, and the automatic limiting can be realized, so that the rotating shaft is fixed, and the adjustment is convenient.

Optionally, the supporting component includes the supporting wheel that installation department and a plurality of interval set up, the installation department sets up two between the batter post, the both ends of installation department respectively with corresponding the batter post is connected, a plurality of the supporting wheel interval sets up on the installation department.

Through adopting above-mentioned technical scheme, a plurality of guide posts that compress tightly the piece and follow the correspondence stretch out, can strengthen the centre gripping fixed action to the motor shaft, fix the motor shaft from a plurality of directions.

Optionally, the pressing frame is detachably connected with the support.

Through adopting above-mentioned technical scheme, compress tightly frame and support detachable connection to make things convenient for the installation of motor shaft, and after the rotor is assembled, through dismantling compress tightly frame and support, conveniently take out the rotor.

Optionally, the support includes two inclined posts that slope set up, two the inclined posts draw close each other, compress tightly frame one end with one of them inclined post upper end rotates to be connected, the other end with another inclined post upper end can dismantle to be connected.

By adopting the technical scheme, when the compression frame and the support are specifically assembled and disassembled, one end of the compression frame and one end of the support are locked through the locking piece; when the motor is required to be disassembled, the locking piece is pulled out, and the pressing frame is rotated by taking the other end of the support as a fulcrum, so that the pressing frame is separated from the support, and the motor rotating shaft can be taken out from between the pressing frame and the support at the moment, so that the convenience of taking out the rotating shaft is improved.

Optionally, the supporting component includes installation department and a plurality of interval setting's supporting wheel, and a plurality of the supporting wheel interval setting is in on the installation department.

Through adopting above-mentioned technical scheme, motor shaft tip card is established between two adjacent supporting wheels, provides holding power jointly by two supporting wheels, and the supporting wheel laminates with motor shaft lateral wall mutually, can reduce the wearing and tearing to motor shaft. Meanwhile, the plurality of supporting wheels can support the plurality of motor rotating shafts.

Optionally, the supporting wheel is detachably connected with the mounting part.

Through adopting above-mentioned technical scheme, can change the backing wheel according to the size of the motor pivot that fixes to improve the application range of device.

Optionally, a plurality of spout has been seted up on the installation department, a plurality of interval distribution's locating hole has been seted up along spout length direction on the installation department, the supporting wheel slides and sets up in the spout and can pass through the mounting with the locating hole locks.

Through adopting above-mentioned technical scheme, the supporting wheel slides and sets up in the spout that corresponds and can lock through the mounting to can adjust the distance between two adjacent supporting wheels according to the pivot size that is fixed. When the size of the rotating shaft is larger, the distance between two adjacent supporting wheels can be increased; when the size of the rotating shaft is smaller, the distance between two adjacent supporting wheels can be reduced.

Optionally, be provided with the guide post on the pressure frame, the pressure spare is followed guide post axial slip sets up in the guide post and can lock, the pressure spare orientation support assembly's one end has the arc stopper that can laminate mutually with motor shaft lateral wall.

Through adopting above-mentioned technical scheme, when fixing the pivot, inwards promote along the guide post axial and compress tightly the piece to lock, the arc stopper can increase the area of contact with motor shaft lateral wall, thereby improves the clamping effort, makes the motor shaft better fixed. Simultaneously, the arc-shaped limiting block can be better attached to the outer side wall of the motor rotating shaft, so that abrasion to the motor rotating shaft is reduced.

In summary, the present utility model includes at least one of the following beneficial effects:

1. the motor rotating shaft is jointly fixed by the supporting component and the pressing piece, and the pressing piece is rotated to enable the pressing piece to be close to or far away from the motor rotating shaft and capable of being automatically limited, so that the rotating shaft is fixed and convenient to adjust.

2. The plurality of compacting pieces extend out from the corresponding guide posts, fix the motor rotating shaft from a plurality of directions, and can strengthen the clamping and fixing effect on the motor rotating shaft.

3. The end part of the motor rotating shaft is clamped between two adjacent supporting wheels, and the two supporting wheels jointly provide supporting force, so that the abrasion to the motor rotating shaft can be reduced.

4. The supporting wheels are arranged in the corresponding sliding grooves in a sliding mode and can be locked through the fixing pieces, and therefore the distance between two adjacent supporting wheels can be adjusted according to the fixed rotating shaft size.

5. The arc-shaped limiting block can increase the contact area with the outer side wall of the motor rotating shaft, so that the clamping acting force is improved, and the motor rotating shaft is better fixed. Simultaneously, the arc-shaped limiting block can be better attached to the outer side wall of the motor rotating shaft, so that abrasion to the motor rotating shaft is reduced.

Drawings

Fig. 1 is a schematic overall structure of a motor shaft fixing device in embodiment 1 of the present utility model.

Fig. 2 is an enlarged schematic view of the area a in fig. 1.

Fig. 3 is a schematic view showing a partial structure of a support assembly in embodiment 1 of the present utility model.

Fig. 4 is a schematic overall structure of another view of the motor shaft fixing device in embodiment 1 of the present utility model.

Fig. 5 is a schematic overall structure of a motor shaft fixing device in embodiment 2 of the present utility model.

Fig. 6 is a schematic overall structure of a motor shaft fixing device in embodiment 3 of the present utility model.

Reference numerals illustrate: 1. a bracket; 11. a protruding portion; 12. a diagonal column; 2. a compacting frame; 21. a caulking groove; 22. a guide post; 221. a threaded through hole; 3. a pressing member; 31. a locking hole; 32. an arc-shaped limiting block; 4. a space for giving way; 5. a support assembly; 51. a mounting part; 511. a chute; 512. positioning holes; 52. a support wheel; 521. a connecting rod; 522. a limiting block; 53. a fixing member; 6. a motor shaft; 7. a locking member; 8. a disc structure.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-6.

Example 1

Referring to fig. 1, the motor rotating shaft fixing device disclosed by the embodiment of the utility model comprises a bracket 1, a pressing frame 2 and a pressing piece 3, wherein the pressing frame 2 is connected with the bracket 1 and is arranged up and down oppositely. The bracket 1 and the compression frame 2 enclose a yielding space 4, and the yielding space 4 is used for a motor rotating shaft 6 to pass through.

Referring to fig. 1 and 2, the support 1 is ladder-shaped, the support 1 includes two inclined columns 12 which are inclined and close relatively, the pressing frame 2 is semi-arc-shaped, two ends of the semi-arc-shaped pressing frame 2 are respectively buckled with the corresponding inclined columns 12, and a yielding space 4 for the motor rotating shaft 6 to pass through is formed. Further, for convenient disassembly and assembly, the pressing frame 2 is detachably connected with the bracket 1. Specifically, one end of the pressing frame 2 is rotationally connected with the upper end of one of the inclined columns 12 through a bolt, the upper end of the other inclined column 12 is provided with a protruding portion 11, the other end of the pressing frame 2 is provided with a caulking groove 21, the caulking groove 21 is downwards arranged, and when the protruding portion 11 is clamped in the corresponding caulking groove 21, locking is performed by using a locking piece 7, and the locking piece 7 can be specifically a bolt or a bolt.

Referring to fig. 1, a guide post 22 is provided on a compression frame 2, the guide post 22 penetrates through the compression frame 2, a threaded through hole 221 is formed in the guide post 22, and a compression member 3 is inserted into the corresponding guide post 22 and is in threaded connection with the inner side wall of the threaded through hole 221. Specifically, in this embodiment, the pressing member 3 is a screw.

Referring to fig. 1 and 3, a support assembly 5 is provided between two diagonal columns 12, and the compression member 3 passes through the compression frame 2 and extends toward the support assembly 5. The supporting component 5 comprises a mounting part 51 and a plurality of supporting wheels 52 which are arranged at intervals, the mounting part 51 is connected between the two inclined columns 12, a chute 511 is formed in the mounting part 51, and each supporting wheel 52 is arranged on the chute 511 in a sliding manner and is detachably connected with the corresponding chute 511. Specifically, the number of the supporting wheels 52 is two, and in other embodiments, multiple groups of supporting wheels 52 may be provided to fix multiple motor shafts 6 at the same time. Each supporting wheel 52 is connected with a limiting block 522 through a connecting rod 521, the connecting rod 521 is arranged in the sliding groove 511 in a penetrating mode, and the supporting wheels 52 and the limiting blocks 522 are respectively located on two sides of the sliding groove 511. Further, in this embodiment, the limiting block 522 is specifically a nut, the connecting rod 521 is specifically a bolt, the nut is rotatably disposed at one end of the bolt, and when the supporting wheel 52 needs to be disassembled, the nut can be unscrewed from the bolt, and then the bolt is removed from the chute 511. The support wheel 52 slides in the chute 511 via the connecting rod 521 to move in the longitudinal direction of the mounting portion 51. Furthermore, the mounting portion 51 is provided with a plurality of positioning holes 512 distributed at intervals, and the positioning holes 512 are disposed corresponding to the sliding grooves 511 and are communicated with the sliding grooves 511, so that the fixing members 53 such as bolts and bolts can be inserted into the connecting rod 521 along the positioning holes 512 and the sliding grooves 511 for locking.

Further, it should be noted that the end portion of the motor shaft 6 is provided with a disc structure 8, in this embodiment, the two sets of brackets 1 are provided, the two sets of brackets 1 are respectively provided at two sides of the disc structure 8 of the motor shaft, and the two sets of support assemblies 5 are also correspondingly provided, so as to support the motor shaft 6 together.

The embodiment of the utility model relates to a motor rotating shaft fixing device, which comprises the following implementation principles: when the motor rotating shaft 6 and the rotor core are assembled, the end part of the motor rotating shaft 6 is arranged in the abdication space 4 formed by the bracket 1 and the compression frame 2 in a penetrating manner, and then the corresponding screw rod is rotated, so that the end part of each compression piece 3 is abutted with the outer side wall of the corresponding motor rotating shaft 6, and the motor rotating shaft 6 is fixed under the combined action of the compression piece 3 and the supporting wheel 52. By adjusting the distance between the two support wheels 52, it is possible to adapt to motor shafts 6 of different inner diameters. The compressing piece 3 is unscrewed, and the motor rotating shaft 6 can continue to rotate.

Example 2

The difference in this embodiment is that, referring to fig. 5, the number of the guide posts 22 is a plurality, and correspondingly, the number of the pressing members 3 is also a plurality, and the plurality of pressing members 3 are disposed in one-to-one correspondence with the plurality of guide posts 22. The guide posts 22 are spaced apart along the length of the pressing frame 2. The number of the guide posts 22 and the corresponding compacting pieces 3 is three, and the three groups of guide posts 22 and the compacting pieces 3 are uniformly distributed at intervals along the length direction of the compacting frame 2.

The embodiment of the utility model relates to a motor rotating shaft fixing device, which comprises the following implementation principles: when the motor rotating shaft 6 is fixed, the plurality of compressing pieces 3 fix all directions of the outer side wall of the motor rotating shaft 6, so that the fixing effect is enhanced.

Example 3

The difference between the present embodiment is that the connection between the pressing member 3 and the guide post 22 is different in this embodiment. Referring to fig. 6, in this embodiment, the compressing member 3 is slidably connected with the guide post 22, a plurality of locking holes 31 are axially formed in the guide post 22, the compressing member 3 and the guide post 22 can be locked by bolts or bolts, and the distance between the compressing member 3 and the motor shaft 6 can be adjusted by different locking holes 31.

Meanwhile, in order to increase the contact area between the pressing pieces 3 and the outer side wall of the motor rotating shaft 6, the end part, close to the motor rotating shaft 6, of each pressing piece 3 is connected with an arc-shaped limiting block 32, and the arc-shaped limiting blocks 32 are attached to the outer side wall of the motor rotating shaft 6.

The embodiment of the utility model relates to a motor rotating shaft fixing device, which comprises the following implementation principles: when the motor shaft 6 is fixed, the pressing member 3 is inserted axially along the guide post 22 toward the support member 5, and then locked by a bolt or a latch. The arc-shaped limiting blocks 32 at the ends of the pressing pieces 3 are attached to the outer side wall of the end part of the motor rotating shaft 6, the end part of the motor rotating shaft 6 is coated, and the contact area with the motor rotating shaft 6 is increased.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a motor shaft fixing device which characterized in that: the device comprises a bracket (1), a pressing frame (2) and a pressing piece (3), wherein the pressing frame (2) is connected with the bracket (1) and is arranged up and down oppositely;

the support (1) and the compression frame (2) enclose a yielding space (4) for a motor rotating shaft (6) to pass through, a support component (5) is arranged on the support (1), and the compression piece (3) passes through the compression frame (2) and extends towards the support component (5).

2. A motor shaft fixing apparatus according to claim 1, wherein: the compression frame (2) is provided with a guide column (22), the guide column (22) penetrates through the compression frame (2), and the compression piece (3) is in threaded connection with the inner side wall of the guide column (22).

3. A motor shaft fixing apparatus according to claim 2, wherein: the guide posts (22) and the pressing pieces (3) are arranged in a plurality, the guide posts (22) are distributed at intervals along the length direction of the pressing frame (2), and the pressing pieces (3) and the guide posts (22) are arranged in one-to-one correspondence.

4. A motor shaft fixing apparatus according to claim 1, wherein: the pressing frame (2) is detachably connected with the support (1).

5. The motor shaft fixing apparatus according to claim 4, wherein: the support (1) comprises two inclined columns (12) which are obliquely arranged, the two inclined columns (12) are close to each other from bottom to top, one end of the pressing frame (2) is rotationally connected with the upper end of one inclined column (12), and the other end of the pressing frame is detachably connected with the upper end of the other inclined column (12).

6. The motor shaft fixing apparatus according to claim 5, wherein: the support assembly (5) comprises a mounting part (51) and a plurality of support wheels (52), wherein two ends of the mounting part (51) are respectively connected with the corresponding inclined columns (12), and the support wheels (52) are arranged on the mounting part (51) at intervals.

7. The motor shaft fixing apparatus according to claim 6, wherein: the supporting wheel (52) is detachably connected with the mounting part (51).

8. The motor shaft fixing apparatus according to claim 6, wherein: the mounting part (51) is provided with a chute (511), the mounting part (51) is provided with a plurality of positioning holes (512) distributed at intervals along the length direction of the chute (511), and the supporting wheel (52) is arranged in the chute (511) in a sliding manner and can be locked with the mounting part (51) through a fixing piece (53).

9. A motor shaft fixing apparatus according to claim 1, wherein: be provided with guide post (22) on compressing tightly frame (2), compress tightly piece (3) follow guide post (22) axial slip sets up in guide post (22) and can lock, compress tightly piece (3) orientation support assembly (5) one end have arc stopper (32) that can laminate mutually with motor shaft (6) lateral wall.