CN219986780U - Shaft and bearing alignment assembling device - Google Patents

Abstract

The utility model discloses a shaft and bearing alignment assembly device, which comprises a first fixing part, a second fixing part and a first driving part, wherein the first fixing part is used for fixing bearings so that the axes of the fixed bearings with different types are all collinear with a first straight line, the second fixing part is used for fixing shafts so that the axes of the fixed shafts with different types are all collinear with the first straight line, and the first fixing part and the second fixing part can be close to or far away from each other along the direction of the first straight line; the first driving part is connected with the first fixing part and/or the second fixing part and used for driving the first fixing part and the second fixing part to be close to or far away from each other so as to match the bearing alignment group fixed by the first fixing part on the shaft fixed by the second fixing part. The shaft and bearing alignment assembly device can be used for alignment of shafts and bearings of different types, ensures coaxiality of the shafts and the bearings during assembly, and improves assembly efficiency of the shafts and the bearings.

Description

Shaft and bearing alignment assembling device

Technical Field

The utility model belongs to the technical field of equipment assembly, and particularly relates to a shaft and bearing alignment assembly device.

Background

In the process of overhauling the underground equipment for mines, the shaft needs to be disassembled and assembled after overhauling, the bearing and the shaft need to be aligned during assembling, and then the bearing is installed.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the utility model provides a shaft and bearing alignment assembly device which can be used for alignment of shafts and bearings of different types, ensures coaxiality of the shafts and the bearings during assembly and improves assembly efficiency of the shafts and the bearings.

The embodiment of the utility model discloses a shaft and bearing alignment assembly device, which comprises:

a first fixing member for fixing a bearing such that axes of the different types of the bearing to be fixed are all collinear with a first straight line;

a second fixing member for fixing a shaft so that axes of the shafts of different types to be fixed are all collinear with the first straight line, the first fixing member and the second fixing member being movable toward and away from each other in the first straight line direction;

the first driving component is connected with the first fixing component and/or the second fixing component and used for driving the first fixing component and the second fixing component to be close to or far away from each other so as to align and assemble the bearing fixed by the first fixing component onto the shaft fixed by the second fixing component.

The shaft and bearing alignment assembly device provided by the embodiment of the utility model can be used for alignment of shafts and bearings of different types, ensures coaxiality of the shafts and the bearings during assembly, and improves assembly efficiency of the shafts and the bearings.

In some embodiments, the first fixing members are two, and the second fixing members are provided between the two first fixing members to align the bearings fixed by the two first fixing members to both ends of the shaft fixed by the second fixing members, respectively.

In some embodiments, the device further comprises a base, wherein the first fixing part and the second fixing part are connected to the base, and the two first fixing parts can move on the base along the first straight line direction.

In some embodiments, the first driving part includes:

the first screw is pivoted on the base and is provided with a first forward-rotation threaded section and a first reverse-rotation threaded section, one of the two first fixing parts is provided with a first forward-rotation threaded hole and sleeved on the first forward-rotation threaded section of the first screw through the first forward-rotation threaded hole, and the other one of the two first fixing parts is provided with a first reverse-rotation threaded hole and sleeved on the first reverse-rotation threaded section of the first screw through the first reverse-rotation threaded hole;

the first driver is arranged on the base and connected with the first screw rod to drive the two first fixing parts to approach or separate along the first straight line direction.

In some embodiments, the guide bar is disposed between the first fixing member and the base to guide the first fixing member to move in the first linear direction.

In some embodiments, the first securing member comprises:

a first support table;

the sleeve is connected to the first supporting table, and the axis of the sleeve is collinear with the first straight line;

the support blocks are arranged in the circumferential direction of the sleeve, and can move along the radial direction of the sleeve;

and the second driving part is arranged between the sleeve and the supporting blocks and is used for driving a plurality of supporting blocks to move so as to fix the bearing on the sleeve.

In some embodiments, the second driving part includes:

the rotating ring is coaxial with the sleeve, the rotating ring is rotatably sleeved on the sleeve, and ring teeth are arranged on the rotating ring;

the support blocks are connected to the external thread sections of the support blocks through the internal thread holes, the sleeve is provided with a plurality of guide grooves, the support blocks are arranged in the guide grooves to limit the support blocks to rotate, the support blocks are arranged along the radial direction of the sleeve, and the support blocks are pivoted with the sleeve;

the gear is arranged on each rod body and meshed with the ring teeth of the rotating ring so as to drive the supporting blocks to move along the radial direction of the sleeve through the rotation of the rotating ring.

In some embodiments, the first stationary part further comprises a second driver connected between the first support table and the sleeve for driving the sleeve to move in the first linear direction relative to the first support table.

In some embodiments, the second fixing part includes:

a second support table;

the first clamping block is provided with a first clamping part and is connected to the second supporting table, and the first clamping block can move on the second supporting table along a first direction;

the second clamping block is provided with a second clamping part, the first clamping part and the second clamping part are oppositely arranged, the second clamping block is connected to the second supporting table, and the second clamping block can move on the second supporting table along the first direction;

a third driving part connected to the second support table, the third driving part being for driving the first and second clamping blocks to move to fix the shaft;

the first direction is orthogonal to the first line.

In some embodiments, the third driving part includes:

the second screw is pivoted on the second supporting table and is provided with a second positive-rotation threaded section and a second negative-rotation threaded section, a second positive-rotation threaded hole is formed in the first clamping block and sleeved on the second positive-rotation threaded section of the second screw through the second positive-rotation threaded hole, and a second negative-rotation threaded hole is formed in the second clamping block and sleeved on the second negative-rotation threaded section of the second screw through the second negative-rotation threaded hole;

the third driver is arranged on the second supporting table and connected with the second screw rod to drive the first clamping block and the second clamping block to approach or depart along the first direction.

Drawings

FIG. 1 is a schematic view of a shaft and bearing alignment assembly according to one embodiment of the present utility model.

Fig. 2 is a schematic structural view of a first driving part according to an embodiment of the present utility model.

Fig. 3 is a schematic diagram of a connection structure of a second driving part according to an embodiment of the present utility model.

Fig. 4 is a schematic structural view of connection of a second driving part according to another embodiment of the present utility model.

Reference numerals:

the device comprises a first fixing part 1, a first supporting table 11, a sleeve 12, a supporting block 13, a rotating ring 14, a rod body 15, a gear 16 and a second driver 17;

a second fixing member 2, a second support table 21, a first clamping block 22, a second clamping block 23, a second screw 24, and a third driver 25;

the first driving part 3, the first screw 31, the first positive-rotation thread section 311, the first negative-rotation thread section 312, the first driver 32, the guide rod 33;

a base 4.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1, the shaft and bearing alignment assembly device disclosed in the embodiment of the utility model comprises a first fixing part 1 and a second fixing part 2, wherein the first fixing part 1 is used for fixing bearings so that the axes of the fixed bearings with different types are all collinear with a first straight line, the second fixing part 2 is used for fixing shafts so that the axes of the fixed shafts with different types are all collinear with the first straight line, and the first fixing part 1 and the second fixing part 2 can be close to or far from each other along the direction of the first straight line.

In the embodiment of the present utility model, a first driving member 3 is provided for driving the first fixing member 1 and the second fixing member 2 to approach or separate from each other, specifically, the first driving member 3 may be connected to the first fixing member 1 to drive the first fixing member 1 to move relative to the second fixing member 2, or the first driving member 3 may be connected to the second fixing member 2 to drive the second fixing member 2 to move relative to the first fixing member 1, or the first driving member 3 may be connected between the first fixing member 1 and the second fixing member 2 to drive both the first fixing member 1 and the second fixing member 2 to approach or separate from each other, and when the first fixing member 1 and the second fixing member 2 approach each other, the bearing alignment group fixed by the first fixing member 1 may be configured to the shaft fixed by the second fixing member 2.

It should be noted that, because the sizes of the bearings and the shafts of different types are different, in order to enable the shaft-bearing alignment assembly device to be applied to the assembly of different shafts and bearings, after the first fixing component 1 in the embodiment of the utility model clamps and fixes the bearings, the axes of the bearings after being clamped and fixed can be ensured to be collinear with the first straight line, and likewise, after the second fixing component 2 clamps and fixes the shafts, the axes of the shafts after being clamped and fixed can be ensured to be collinear with the first straight line, so that the bearings and the shafts after being clamped and fixed by the first fixing component 1 and the second fixing component 2 are coaxial, and further, the alignment assembly of the shafts and the bearings is realized through the driving of the first driving component 3.

In some embodiments, the first fixing members 1 are two, and the second fixing member 2 is provided between the two first fixing members 1 to align bearings fixed by the two first fixing members 1 to both ends of a shaft fixed by the second fixing member 2, respectively.

Because the shaft is usually supported through two bearings at two ends, the first fixing part 1 in the embodiment of the utility model can be arranged at two sides of the second fixing part 2 respectively, when the alignment and the assembly are carried out, the two bearings at two ends of the shaft can be aligned with the shaft at the same time, and the force can be applied to the two ends of the shaft through the bearings at the same time, so that the stress of the shaft is optimized, the relative sliding between the second fixing part 2 and the shaft when the single side of the shaft is stressed is avoided, the efficiency of the assembly of the shaft and the bearings is improved, and the stability and the practicability of the equipment are improved.

As shown in fig. 1, in some embodiments, the device further includes a base 4, where the first fixing element 1 and the second fixing element 2 are both connected to the base 4, and both the first fixing elements 1 are movable on the base 4 along a first linear direction.

In order to improve the position precision between the first fixing part 1 and the second fixing part 2 and facilitate the alignment between the parts, in the embodiment of the utility model, a base 4 is arranged to provide a stable supporting platform, the first fixing part 1 and the second fixing part 2 are connected on the base 4, the positions between the first fixing part 1 and the second fixing part 2 are restrained by the assembly structure between each part and the base 4, and the alignment precision between the parts is improved.

As shown in fig. 1, in the embodiment of the present utility model, the second fixing member 2 is fixed to the base 4, and the first fixing member 1 is movable relative to the base 4 along a first linear direction, which is a left-right direction in fig. 1.

Optionally, the two first fixing parts 1 synchronously act, when the bearing and the shaft are aligned and assembled, the two first fixing parts 1 synchronously approach the second fixing part 2 after finishing the fixing of the bearing, and when the assembly is finished, the two first fixing parts 1 are simultaneously far away from the second fixing part 2.

Optionally, the two first fixing parts 1 act independently, when the bearing and the shaft are aligned and assembled, the two first fixing parts 1 can be controlled independently after the bearing is fixed, and approach to the second fixing part 2 sequentially or simultaneously, and when the two first fixing parts 1 are far away from the second fixing part 2 after the assembly is completed, the two first fixing parts can be different or act asynchronously.

As shown in fig. 2, in some embodiments, the first driving part 3 includes a first screw 31 and a first driver 32, the first screw 31 is pivotally disposed on the base 4, the first screw 31 has a first forward threaded section 311 and a first reverse threaded section 312, in two first fixing parts 1, one of the first fixing parts 1 is provided with a first forward threaded hole and is sleeved on the first forward threaded section 311 of the first screw 31 through the first forward threaded hole, the other first fixing part 1 is provided with a first reverse threaded hole and is sleeved on the first reverse threaded section 312 of the first screw 31 through the first reverse threaded hole, the first driver 32 is disposed on the base 4, and the first driver 32 is connected with the first screw 31 to drive the two first fixing parts 1 to approach or separate in the first linear direction.

That is, the first driving component 3 drives the first fixing component 1 by using the first screw 31, the first screw 31 is connected by the first driver 32, the first driver 32 drives the first screw 31 to rotate, and the first driver 32 is a motor, in this embodiment of the present utility model, since two first fixing components 1 need to act in opposite directions simultaneously, a first forward thread section 311 and a first reverse thread section 312 are provided on the first screw 31, one fixing component is matched with the first forward thread section 311 by a first forward thread hole, the other fixing component is matched with the first reverse thread section 312 by a first reverse thread hole, both the first fixing components 1 approach the second fixing component 2 when the motor rotates in the forward direction, and both the first fixing components 1 are far away from the second fixing component 2 when the motor rotates in the reverse direction.

The first screw 31 is connected to the base 4 through the bearing and the bearing seat, and a groove can be formed in the base 4 so that the first screw 31 is arranged in the groove, the first screw 31 can be prevented from being arranged outside the base 4, the first screw 31 is protected from colliding with other equipment, and the groove can be used for limiting and restraining the first fixing part 1 to a certain extent, for example, the groove is used for guiding the first fixing part 1. In practical application, the assembly structure between the first fixing part 1 and the first screw rod 31 can be hidden in the base 4, so that the installation height of the first fixing part 1 is reduced, and the equipment volume is smaller.

As shown in fig. 2, in some embodiments, a guide bar 33 is further included, and the guide bar 33 is provided between the first fixing member 1 and the base 4 to guide the first fixing member 1 to move in the first linear direction.

That is, the present utility model provides the guide bar 33 between the first fixing member 1 and the base 4, the length direction of the guide bar 33 is parallel to the first straight direction, the first fixing member 1 can slide on the guide bar 33, and the first guide bar 33 can be provided in two, so that the first fixing member 1 can not only slide along the guide bar 33 in an oriented manner, but also avoid the first fixing member 1 from swinging, thereby improving the stability thereof.

As shown in fig. 1, in some embodiments, the first fixing member 1 includes a first support table 11, a sleeve 12, a plurality of support blocks 13, and a second driving member, the sleeve 12 is connected to the first support table 11, an axis of the sleeve 12 is collinear with the first line, the plurality of support blocks 13 are provided in a circumferential direction of the sleeve 12, the support blocks 13 are movable in a radial direction of the sleeve 12, and the second driving member is provided between the sleeve 12 and the support blocks 13 for driving the plurality of support blocks 13 to move to fix the bearing to the sleeve 12.

That is, the first supporting table 11 is used as a base of other components in the first fixing component 1, the first supporting table 11 is used for being connected with the base 4, the guide rod 33 and the first screw 31 in the above embodiment, so that other structures in the first fixing component 1 are not affected, a stable supporting table can be provided for the structures of the sleeve 12, the supporting block 13, the second driving component and the like, the sleeve 12 in the first fixing component 1 is connected to the first supporting table 11, and the second driving component can drive the supporting block 13 to move in the radial direction of the sleeve 12, and further fix the bearing sleeved outside the sleeve 12.

Optionally, the number of the supporting blocks 13 is multiple, for example, 3, 5 or 6 supporting blocks 13 can be selected, and the plurality of supporting blocks 13 are uniformly circumferentially arranged on the outer wall of the sleeve 12, so as to improve the supporting effect on the bearing, ensure that the bearing can be stably fixed on the sleeve 12, and allow the first supporting table 11 to move.

As shown in fig. 3 and 4, in some embodiments, the second driving part includes a rotating ring 14, a plurality of rod bodies 15 and a gear 16, the rotating ring 14 is coaxial with the sleeve 12, the rotating ring 14 is rotatably sleeved on the sleeve 12, ring teeth are arranged on the rotating ring 14, the rod bodies 15 are in one-to-one correspondence with the supporting blocks 13, external thread sections are arranged on the rod bodies 15, internal thread holes are arranged on the supporting blocks 13, the supporting blocks 13 are connected on the external thread sections of the rod bodies 15 through the internal thread holes, a plurality of guide grooves are arranged on the sleeve 12, the supporting blocks 13 are arranged in the guide grooves to limit the supporting blocks 13 to rotate, the rod bodies 15 are arranged along the radial direction of the sleeve 12, the rod bodies 15 are pivoted with the sleeve 12, the gears 16 are arranged on the rod bodies 15, and the gears 16 are meshed with the ring teeth of the rotating ring 14 to drive the supporting blocks 13 to move along the radial direction of the sleeve 12 through the rotation of the rotating ring 14.

The plurality of stay blocks 13 need to be operated in synchronization, and it is necessary to ensure that the movement distance of each stay block 13 in the radial direction of the sleeve 12 is the same, so that the axis of the fixed bearing can be made collinear with the first straight line. Therefore, the rotating ring 14 of the second driving part in the embodiment of the present utility model can realize synchronous rotation of the plurality of rod bodies 15 through engagement of the plurality of gears 16, and when the plurality of rod bodies 15 are rotated synchronously, the supporting blocks 13 engaged with the rod bodies 15 correspondingly move along the radial direction of the sleeve 12 along with the rotation of the rod bodies 15. The guide groove can restrict the supporting block 13, so that the supporting block 13 is prevented from rotating along with the rotation of the rod body 15.

Alternatively, the rod 15 may be connected to the sleeve 12 by a thrust bearing, which not only enables rotation of the rod 15, but also subjects the rod 15 to a large opposing force.

As shown in fig. 1, in some embodiments, the first fixing part 1 further comprises a second driver 17, the second driver 17 being connected between the first support table 11 and the sleeve 12 for driving the sleeve 12 to move in a first linear direction with respect to the first support table 11.

In order to provide enough pushing force when the bearing and the shaft are aligned and assembled, the first fixing component 1 in the embodiment of the utility model comprises the second driver 17, the second driver 17 can be an air cylinder, a hydraulic cylinder or an electric push rod, the sleeve 12 can move along a first straight line direction relative to the first supporting table 11 through the second driver 17, the axis of the second driver 17 and the first straight line can be collinear, the alignment precision of the bearing and the shaft is improved, the lateral offset of the bearing and the shaft body due to the interaction between the bearing and the shaft body during assembly is reduced, and the assembly effect is improved.

As shown in fig. 1, in some embodiments, the second fixing member 2 includes a second support table 21, a first clamping block 22 having a first clamping portion, the first clamping block 22 being connected to the second support table 21, the first clamping block 22 being movable in a first direction on the second support table 21, a second clamping block 23 having a second clamping portion, the first clamping portion and the second clamping portion being disposed opposite to each other, the second clamping block 23 being connected to the second support table 21, the second clamping block 23 being movable in the first direction on the second support table 21, and a third driving member connected to the second support table 21, the third driving member for driving the first clamping block 22 and the second clamping block 23 to move to fix the shafts, the first direction being orthogonal to the first line.

The second fixing member 2 may be fixed to the base 4, and thus the second support stand 21 may be a part of the base 4 or may be connected to the base 4 by welding or a connecting member. In the embodiment of the utility model, the shaft is clamped and fixed by the first clamping block 22 and the second clamping block 23, wherein the first clamping part and the second clamping part are arc grooves, the openings of the first clamping part and the second clamping part are opposite, and anti-skid patterns can be arranged on the inner sides of the first clamping part and the second clamping part for improving the clamping and fixing effects. The third driving part drives the first clamping block 22 and the second clamping block 23 to synchronously move in opposite directions, so that the axis of the fixedly clamped shaft is ensured to be collinear with the first straight line.

Optionally, the clamping device further comprises a third clamping block or a fourth clamping block or more clamping blocks, the number of the clamping blocks can be determined according to practical situations, but no matter how many clamping blocks are included, synchronous actions of at least two clamping blocks are required to be guaranteed so as to fix the shaft first, the axis of the shaft is collinear with the first straight line, and the shaft is further clamped by other clamping blocks.

Further, the movement direction of the different gripping blocks may be different, but the movement direction of each gripping block is orthogonal to the first straight line direction.

As shown in fig. 1, in some embodiments, the third driving component includes a second screw 24 and a third driver 25, where the second screw 24 is pivotally disposed on the second supporting table 21, the second screw 24 has a second positive-rotation threaded section and a second negative-rotation threaded section, the first clamping block 22 is provided with a second positive-rotation threaded hole and sleeved on the second positive-rotation threaded section of the second screw 24 through the second positive-rotation threaded hole, the second clamping block 23 is provided with a second negative-rotation threaded hole and sleeved on the second negative-rotation threaded section of the second screw 24 through the second negative-rotation threaded hole, the third driver 25 is disposed on the second supporting table 21, and the third driver 25 is connected with the second screw 24 to drive the first clamping block 22 and the second clamping block 23 to approach or separate from each other along the first direction.

Specifically, the first direction is the up-down direction shown in fig. 1, the third driving component adopts the second screw 24 to drive, the second screw 24 is driven by the third driver 25, the third driver 25 is a motor, two clamping blocks are provided in the embodiment of the utility model, namely, the first clamping block 22 and the second clamping block 23 need to act in opposite directions at the same time when acting, therefore, the second positive-rotation threaded section and the second negative-rotation threaded section are provided on the second screw 24, the first clamping block 22 is matched with the second positive-rotation threaded section through the second positive-rotation threaded hole, the second clamping block 23 is matched with the second negative-rotation threaded section through the second positive-rotation threaded hole, the first clamping block 22 and the second clamping block 23 are close to each other to clamp and fix the shaft, and the axis of the shaft is collinear with the first straight line, and the first clamping block 22 and the second clamping block 23 are far away from each other to unclamp the shaft when the motor rotates in reverse direction.

The second screw 24 is connected to the second supporting table 21 through a bearing and a bearing seat, and a groove can be formed in the second supporting table 21 so that the second screw 24 is installed in the groove, the second screw 24 can be prevented from being placed outside the second supporting table 21, the second screw 24 is protected from colliding with other equipment, and the groove can be used for limiting and restraining the first clamping block 22 and the second clamping block 23 to a certain extent, for example, the groove is used for guiding the first clamping block 22 and the second clamping block 23. In practical application, the assembly structure between the first clamping block 22 and the second clamping block 23 and the second screw 24 can be hidden in the second supporting table 21, so that the installation height of the first clamping block 22 and the second clamping block 23 is reduced, and the equipment volume is smaller.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (10)

1. A shaft and bearing alignment assembly device, comprising:

a first fixing member for fixing a bearing such that axes of the different types of the bearing to be fixed are all collinear with a first straight line;

a second fixing member for fixing a shaft so that axes of the shafts of different types to be fixed are all collinear with the first straight line, the first fixing member and the second fixing member being movable toward and away from each other in the first straight line direction;

the first driving component is connected with the first fixing component and/or the second fixing component and used for driving the first fixing component and the second fixing component to be close to or far away from each other so as to align and assemble the bearing fixed by the first fixing component onto the shaft fixed by the second fixing component.

2. The shaft-bearing alignment assembly device according to claim 1, wherein the number of the first fixing members is two, and the second fixing member is provided between the two first fixing members to align the bearings fixed by the two first fixing members to both ends of the shaft fixed by the second fixing members, respectively.

3. The shaft and bearing alignment assembly of claim 2, further comprising a base, wherein the first and second fixed members are each coupled to the base, and wherein both of the first fixed members are movable on the base in the first linear direction.

4. A shaft and bearing alignment assembly as in claim 3, wherein the first drive component comprises:

the first screw is pivoted on the base and is provided with a first forward-rotation threaded section and a first reverse-rotation threaded section, one of the two first fixing parts is provided with a first forward-rotation threaded hole and sleeved on the first forward-rotation threaded section of the first screw through the first forward-rotation threaded hole, and the other one of the two first fixing parts is provided with a first reverse-rotation threaded hole and sleeved on the first reverse-rotation threaded section of the first screw through the first reverse-rotation threaded hole;

the first driver is arranged on the base and connected with the first screw rod to drive the two first fixing parts to approach or separate along the first straight line direction.

5. The shaft and bearing alignment assembly of claim 4, further comprising a guide bar disposed between the first stationary member and the base to guide movement of the first stationary member in the first linear direction.

6. The shaft and bearing alignment assembly of any of claims 1-5, wherein the first securing member comprises:

a first support table;

the sleeve is connected to the first supporting table, and the axis of the sleeve is collinear with the first straight line;

the support blocks are arranged in the circumferential direction of the sleeve, and can move along the radial direction of the sleeve;

and the second driving part is arranged between the sleeve and the supporting blocks and is used for driving a plurality of supporting blocks to move so as to fix the bearing on the sleeve.

7. The shaft and bearing alignment assembly of claim 6, wherein the second drive component comprises:

the rotating ring is coaxial with the sleeve, the rotating ring is rotatably sleeved on the sleeve, and ring teeth are arranged on the rotating ring;

the support blocks are connected to the external thread sections of the support blocks through the internal thread holes, the sleeve is provided with a plurality of guide grooves, the support blocks are arranged in the guide grooves to limit the support blocks to rotate, the support blocks are arranged along the radial direction of the sleeve, and the support blocks are pivoted with the sleeve;

the gear is arranged on each rod body and meshed with the ring teeth of the rotating ring so as to drive the supporting blocks to move along the radial direction of the sleeve through the rotation of the rotating ring.

8. The shaft and bearing alignment assembly of claim 6, wherein the first stationary component further comprises a second driver coupled between the first support table and the sleeve for driving the sleeve to move in the first linear direction relative to the first support table.

9. The shaft and bearing alignment assembly of any of claims 1-5, wherein the second securing member comprises:

a second support table;

the first clamping block is provided with a first clamping part and is connected to the second supporting table, and the first clamping block can move on the second supporting table along a first direction;

the second clamping block is provided with a second clamping part, the first clamping part and the second clamping part are oppositely arranged, the second clamping block is connected to the second supporting table, and the second clamping block can move on the second supporting table along the first direction;

a third driving part connected to the second support table, the third driving part being for driving the first and second clamping blocks to move to fix the shaft;

the first direction is orthogonal to the first line.

10. The shaft and bearing alignment assembly of claim 9, wherein the third drive component comprises:

the second screw is pivoted on the second supporting table and is provided with a second positive-rotation threaded section and a second negative-rotation threaded section, a second positive-rotation threaded hole is formed in the first clamping block and sleeved on the second positive-rotation threaded section of the second screw through the second positive-rotation threaded hole, and a second negative-rotation threaded hole is formed in the second clamping block and sleeved on the second negative-rotation threaded section of the second screw through the second negative-rotation threaded hole;

the third driver is arranged on the second supporting table and connected with the second screw rod to drive the first clamping block and the second clamping block to approach or depart along the first direction.