Motor bearing positioning and mounting device

Abstract

The invention relates to the technical field of bearing installation, and discloses a motor bearing positioning and installing device which comprises a rotating disc, the rotating disc is arranged in a bearing installing area, a driving assembly is arranged at the bottom of the rotating disc to enable the rotating disc to rotate, and placing tables used for placing parts are arranged on the upper edge of the rotating disc in a circumferential array mode. An oil injection device, a mechanical arm used for containing a bearing and a sleeve used for pressing the bearing are arranged in the moving direction of the containing table, a second guide rail and a first guide rail are arranged on the inner side and the outer side of the containing table respectively, and the first guide rail and the second guide rail are provided with moving assemblies with the same number. The moving assemblies can move on the first guide rail and the second guide rail, a limiting rope is connected between the moving assembly located on the first guide rail and the moving assembly located on the second guide rail, the limiting rope has elasticity, and when the moving assemblies on the first guide rail and the second guide rail have an angle difference, the limiting rope can generate an inclination angle.

Description

Technical Field

[0001] The invention relates to the technical field of bearing installation, in particular to a motor bearing positioning and installation device. Background Art

[0002] Motor bearings are important components that support mechanical rotating bodies in motors. They are used to ensure that rotating parts such as rotors and shafts can rotate smoothly and efficiently. These bearings mainly bear radial and axial loads when the motor is running. At the same time, they need to ensure low friction and wear, as well as sufficient rigidity and precision. The main functions and characteristics of motor bearings include: Support: Motor bearings provide stable support for the rotating parts of the motor to ensure that the motor can run smoothly, reduce friction, and lubricants in the bearings (such as grease or lubricating oil) can significantly reduce friction between rotating parts, thereby reducing energy consumption and wear. Bearing loads: Bearings are designed to withstand radial and axial loads generated when the motor is running, which helps protect other parts of the motor from damage and improves precision. High-precision bearings can ensure the rotation accuracy of the motor, which is crucial for applications that require precise control. Heat dissipation The bearing will generate a certain amount of heat during the operation of the motor. High-quality bearing materials and designs help to dissipate heat and extend the service life of the bearing. There are many types of motor bearings, such as deep groove ball bearings, cylindrical roller bearings, tapered roller bearings, self-aligning ball bearings, self-aligning roller bearings, thrust ball bearings, thrust roller bearings, etc. Each type of bearing has its specific application range and advantages and disadvantages. For example, deep groove ball bearings are widely used in various motors because of their simple structure, easy maintenance, and strong load-bearing capacity, while tapered roller bearings are suitable for occasions with large axial and radial loads. In the maintenance and care of the motor, it is crucial to regularly check the wear of the bearings, replace aging lubricants, and ensure the cleanliness and lubrication of the bearing seats. This can not only extend the service life of the motor, but also improve the operating efficiency and reliability of the motor.

[0003] During the installation of bearings on the assembly line, it is necessary to ensure that the parts on which the bearings are installed are accurately positioned. In the assembly line, after the bearings are placed in the parts, the bearings are pressed into the parts through the sleeves. If the bearings are not placed in the correct position, the parts may be damaged when the sleeves are pressed in. In addition, when moving on the production line, the drive device works and the pressure of the sleeves will cause deviations. Therefore, a fixing device is required on the positioning device, which increases the complexity of the equipment. At the same time, it increases the volume, making it difficult to achieve a high degree of automation. Summary of the invention

[0004] (I) Technical problems to be solved: In view of the deficiencies in the prior art, the present invention provides a motor bearing positioning and installation device, which has the advantages of simple positioning and semi-automation, and solves the problem of positioning parts when installing bearings.

[0005] (II) Technical solution: In order to achieve the above-mentioned purpose of simple positioning and semi-automation, the present invention provides the following technical solution: a motor bearing positioning and installation device, comprising a turntable, which is arranged in the bearing installation area, and a driving component is arranged at the bottom of the turntable to enable it to rotate, and a placement table for placing parts is arranged in a circular array at the upper edge of the turntable, and an oiling device, a mechanical arm for placing the bearing and a sleeve for pressing the bearing are respectively arranged along the movement direction of the placement table, and a second guide rail and a first guide rail are respectively arranged inside and outside the placement table, and the same number of moving components are arranged on the first guide rail and the second guide rail, and the moving component can move on the first guide rail and the second guide rail, and a limiting rope is connected between the moving component located on the first guide rail and the moving component located on the second guide rail, and the limiting rope is elastic. When the moving components on the first guide rail and the second guide rail have an angle difference, the limiting rope can generate an inclination angle.

[0006] Preferably, the number of movable components on the first guide rail and the second guide rail is twice that of the placement table, and two pairs of movable components are arranged next to each placement table.

[0007] Preferably, a light-transmitting hole is provided on the placement table, and a detection component for detecting light passing through the light-transmitting hole is provided inside the placement table.

[0008] Preferably, the placement table consists of a base and a cover plate, the base is arranged on the turntable, the cover plate is arranged on the base and is a detachable structure, the light-transmitting hole is arranged on the cover plate, and the detection component is arranged on the base and below the cover plate.

[0009] Preferably, the cover plate is in the shape of a bottle cap, and the edge of the base extends upward to form a circular wall surface, so that the cover plate can be directly placed on the base to fix its position.

[0010] Preferably, the light-transmitting hole is arranged at the edge of the cover plate and is in a circular shape.

[0011] Preferably, a winding structure is provided inside the movable component, which can wind the limiting rope into the interior or release it from the interior. The winding structure can wind up the limiting rope to make the limiting rope taut and reduce elastic deformation. After the position of the parts is adjusted correctly, the angle difference of the movable components 13 on different guide rails can be adjusted to zero, and the two sides of the parts can be limited.

[0012] Preferably, a turntable cover is provided above the turntable, and the turntable cover leaves an arc-shaped gap at the circular array position of the placement table. The setting of the turntable cover can protect the turntable from direct impact and contamination by objects above, while preventing the turntable from entraining debris or causing personal injury during rotation. The design of the arc-shaped gap allows parts to move and position smoothly on the turntable, while avoiding direct friction between the cover and the parts, reducing the risk of wear and damage to the parts.

[0013] Preferably, the limit rope is made of elastic steel, which is a metal material with excellent elastic properties and a special internal structure. It can be deformed under the action of external force without causing permanent plastic deformation, so that it can adapt to repeated winding and pulling.

[0014] (III) Beneficial effects: Compared with the prior art, the present invention provides a motor bearing positioning and installation device, which has the following beneficial effects: 1. The motor bearing positioning and installation device can dynamically adjust the position of the parts placed on the placement table through the coordinated use of the moving component and the limit rope. This design ensures that the parts can maintain precise positioning when installing the bearings, avoiding installation errors caused by part position deviations. The staff only needs to place the parts on the placement table, and the turntable will automatically drive the parts to perform circular motion, and go through each installation step in turn without manual intervention, which reduces the difficulty of operation. The device integrates multiple functional modules such as an oiling device, a robotic arm and a sleeve, realizing a one-stop operation from lubrication, bearing placement to press installation, greatly simplifying the operation process and improving work efficiency. In addition, the use of a semi-automatic device is easier to implement than a fully automated device. The equipment is simpler and occupies less space, and does not increase excessive manpower. Workers only need to place the parts on the placement table, which improves worker efficiency. A moving component is arranged on the first guide rail and the second guide rail located inside and outside the placement table, and a limiting rope is connected between the moving component on the first guide rail and the moving component on the second guide rail. Through the angle difference between the moving components on different guide rails, the limiting rope has different inclination angles. When the inclination angle of the limiting rope is different, the contact position with the part on the placement table is different during the movement process, and the direction of the applied force is different, so the position of the part on the placement table can be adjusted. Through the angle difference of the moving components on different guide rails, the parts are fine-tuned at different positions. When the position is adjusted correctly, the position of the fixed moving component is limited to the part, thereby reducing the displacement of the part during the movement.

[0015] 2. The motor bearing positioning and installation device, through the combined use of the light-transmitting hole and the detection component, can monitor the coverage area and offset position of the parts on the placement table in real time, thereby further improving the installation accuracy. The cover plate is in the shape of a bottle cap, and the edge of the base extends upward to form an annular wall surface, so that the cover plate can be fixed in position by directly covering the base, so that no additional connection structure is required between the cover plate and the base, and quick disassembly and assembly can be achieved. This design not only simplifies the installation process, but also makes disassembly more convenient. When maintenance or replacement of internal parts is required, the staff can quickly open the cover plate, operate it, and then easily cover it again without complicated tools or steps, simplifying the structure. During the manufacturing and maintenance process, the cost is lower and the maintenance is more convenient. The annular wall surface provides stable support for the cover plate, ensuring that the cover plate will not easily fall off or shift due to external force after it is covered. This structural support not only enhances the stability of the device The light-transmitting hole is arranged at the edge of the cover plate and is in a circular shape. This design enables the detection component to monitor the position and offset of the parts more comprehensively. The circular light-transmitting hole can cover a larger detection range, thereby improving the efficiency and accuracy of the detection. At the same time, the circular design is also convenient for alignment with the detection component, thereby ensuring the smooth progress of the detection process. When installing bearings on parts of different sizes, by replacing different cover plates and changing the position of the light-transmitting hole on the cover plate 23, the positioning of parts of different sizes can be achieved. It is suitable for parts of various shapes and sizes, especially circular parts, because the placement table is also designed to be circular, which matches the shape of the parts, thereby ensuring good adaptability. By adjusting the position of the moving component and the inclination angle of the limiting rope, it can adapt to parts of different sizes and weights, thereby achieving flexible installation requirements.

[0016] 3. The motor bearing positioning and installation device is provided with a winding structure inside the moving component, which can roll the limit rope into or release it from the inside. The winding structure rolls up the limit rope to make the limit rope taut and reduce elastic deformation. The winding and releasing of the limit rope by the winding structure can accurately adjust the position of the part and reduce the positioning error caused by elastic deformation. After the part position is correctly adjusted, the angle difference of the moving components on different guide rails can be adjusted to zero to ensure that both sides of the part are accurately limited, effectively avoiding the deviation of the parts during the moving installation process, and improving the accuracy and stability of the installation. After the part position is correctly adjusted, the angle difference of the moving components on different guide rails can be adjusted to zero, and the two sides of the part can be limited to effectively avoid the deviation of the parts during the moving installation process. The parts are offset during the process and can be adjusted immediately according to the real-time detection data. The winding structure in different moving components is used to release the limit rope at one end and collect the limit rope at the other end, and then reverse it, so that the limit rope forms a back and forth movement. The limit rope contacts both sides of the part and moves back and forth, so that it can drive the part to produce a back and forth rotation movement at a certain angle. The rotation movement generated by the part helps to evenly disperse the lubricating oil injected into the part and avoid the accumulation of lubricating oil in a certain place, thereby improving the lubrication effect and service life of the part. The winding structures in different moving components work together, and the limit rope is released at one end and collected at the other end. The position and posture of the part can be flexibly adjusted to meet different installation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the present invention is shown in FIG. Figure 1 .

[0018] Figure 2 The structure of the present invention is shown in FIG. Figure 2 .

[0019] Figure 3 The structural details of the present invention are shown in FIG. Figure 1 .

[0020] Figure 4 The structural details of the present invention are shown in FIG. Figure 2 .

[0021] Figure 5 The structure of the present invention is viewed from above Figure 1 .

[0022] Figure 6 The structure of the present invention is viewed from above Figure 2 .

[0023] Figure 7 It is a schematic diagram of the angle difference of the moving components of the present invention.

[0024] Figure 8This is a schematic diagram of the present invention in which the angle difference of the moving component is zero.

[0025] Fig. 9 It is a schematic diagram of the structure of the placement table of the present invention.

[0026] In the figure: 1, turntable; 2, placement table; 11, first guide rail; 12, second guide rail; 13, moving component; 14, limiting rope; 21, base; 22, detection component; 23, cover plate; 101, turntable cover plate; 231, light hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 4 , a motor bearing positioning and installation device comprises a turntable 1, which is arranged in a bearing installation area, a driving assembly is arranged at the bottom of the turntable 1 to enable it to rotate, a placement table 2 for placing parts is arranged in a circumferential array at the upper edge of the turntable 1, and an oiling device, a mechanical arm for placing bearings and a sleeve for pressing the bearings are arranged along the movement direction of the placement table 2, a second guide rail 12 and a first guide rail 11 are arranged inside and outside the placement table 2, the first guide rail 11 and the second guide rail 12 are provided with the same number of moving components 13, the moving components 13 can move on the first guide rail 11 and the second guide rail 12, a limiting rope 14 is connected between the moving components 13 on the first guide rail 11 and the moving components 13 on the second guide rail 12, the limiting rope 14 is elastic, when the moving components 13 on the first guide rail 11 and the second guide rail 12 have an angle difference, the limiting rope 14 can generate an inclination angle, and the contact position of the limiting rope 14 with the parts on the placement table 2 can be changed by the different angles of the limiting rope 14 to adjust the offset distance of the parts.

[0029] The number of movable components 13 on the first guide rail 11 and the second guide rail 12 is twice that of the placement table 2, and two pairs of movable components 13 are arranged next to each placement table 2. The placement table 2 is provided with a light-transmitting hole 231, and a detection component 22 for detecting light passing through the light-transmitting hole 231 is arranged inside the placement table 2. The placement table 2 consists of a base 21 and a cover plate 23, the base 21 is arranged on the turntable 1, the cover plate 23 is arranged on the base 21 and is a detachable structure, the light-transmitting hole 231 is arranged on the cover plate 23, and the detection component 22 is arranged on the base 21 and below the cover plate 23.

[0030] A driving assembly is provided at the bottom of the turntable 1 so that the turntable 1 can rotate. The staff will place the parts that need to be installed with bearings on the placement table 2. The parts will perform circular motion with the movement of the turntable 1. Along the movement direction of the turntable 1, an oiling device, a mechanical arm for placing bearings and a sleeve for pressing are respectively provided on its side. First, the oiling device injects lubricating oil into the position where the bearing is installed inside the part, and then the mechanical arm puts the bearing into the part. Finally, the sleeve and the bearing are pressed into the part to complete the installation. During the installation process of the parts placed on the placement table 2, it is necessary to ensure accurate positioning. Through the moving assembly 13 provided on the first guide rail 11 and the second guide rail 12 located on the inner and outer sides of the placement table 2, the moving assembly 13 on the first guide rail 11 and the moving assembly 13 on the second guide rail 12 are connected with a limiting rope 14. Through the angle difference between the moving assemblies 13 on different guide rails, refer to Figure 7 , so that the limiting rope 14 has different inclination angles. When the inclination angles of the limiting rope 14 are different, the contact positions with the parts on the placement table 2 are different during the movement, and the directions of the applied forces are different, so the position of the parts on the placement table 2 can be adjusted. The placement table 2 is provided with a light-transmitting hole 231, and the detection component 22 detects the light passing through the light-transmitting hole 231, so that the coverage area and offset position of the parts on the placement table 2 can be calculated. The limiting rope 14 is driven by the moving component 13 to push the parts, so that the parts completely cover the placement table 2, and the position of the parts coincides with the position of the placement table 2, so as to achieve the above-mentioned adjustment. The device positions the parts, and then the moving components 13 on different guide rails adjust their positions so that the limiting ropes 14 apply force evenly to both sides of the parts to achieve the effect of fixing the position. Most of the parts that need to be installed with bearings are circular, and the placement table 2 is also circular with the same shape. During the operation, it is only necessary to position the placement table 2 in the turntable 1, and the position of the placement table 2 is a fixed position, which ensures the accurate installation of the bearings and can dynamically adjust the parts. The staff does not need to place the parts accurately. At the same time, the offset of the parts during transportation and installation can be adjusted and fixed immediately.

[0031] See also Fig. 9The cover plate 23 is in the shape of a bottle cap, and the edge of the base 21 extends upward to form an annular wall surface, so that the cover plate 23 can be fixed in position by directly covering the base 21, so that no additional connection structure is required between the cover plate 23 and the base 21, and quick disassembly and assembly can be achieved. This design not only simplifies the installation process, but also makes disassembly more convenient. When maintenance or replacement of internal parts is required, the staff can quickly open the cover plate 23, perform the operation and then easily cover it again without complicated tools or steps. The annular wall surface provides stable support for the cover plate 23, ensuring that the cover plate 23 will not easily fall off or shift due to external force after it is covered. This structural support not only enhances the stability of the device, but also ensures the accuracy of the light transmission hole 231 during the detection process. The light transmission hole 231 is set at the edge of the cover plate 23 and is in a circular ring shape. See Figure 4 , the light-transmitting hole 231 is arranged at the edge of the cover plate and is in a circular shape. This design enables the detection component to monitor the position and offset of the parts more comprehensively. The circular light-transmitting hole can cover a larger detection range, improving the efficiency and accuracy of the detection. At the same time, the circular design is also convenient for alignment with the detection component, ensuring the smooth progress of the detection process. When installing bearings on parts of different sizes, by replacing different cover plates 23 and changing the position of the light-transmitting hole 231 on the cover plate 23, the positioning of parts of different sizes can be achieved. It is suitable for parts of various shapes and sizes, especially circular parts, because the placement table 2 is also designed to be circular, matching the shape of the part, ensuring good adaptability. By adjusting the position of the moving component 13 and the inclination angle of the limiting rope 14, it can adapt to parts of different sizes and weights and realize flexible installation requirements.

[0032] The moving assembly 13 is provided with a winding structure (not shown) inside, which can roll the limit rope 14 into or release it from the inside. The limit rope 14 is rolled up by the winding structure, so that the limit rope 14 is tightened to reduce elastic deformation. After the parts are correctly adjusted, the angle difference of the moving assemblies 13 on different guide rails can be adjusted to zero. Figure 8 , and limit the two sides of the parts, effectively avoiding the deviation of the parts during the mobile installation process, and being able to make immediate adjustments based on real-time detection data, using the winding structure in different moving components 13, releasing the limit rope 14 at one end, and taking in the limit rope 14 at the other end, and then reversing, so that the limit rope 14 forms a back and forth movement, and the limit rope 14 contacts with both sides of the parts and moves back and forth, so that it can drive the parts to rotate back and forth at a certain angle, and the rotational movement generated by the parts can make the lubricating oil injected into the parts evenly dispersed to avoid accumulation in one place.

[0033] A turntable cover 101 is arranged above the turntable 1, and the turntable cover 101 leaves an arc-shaped gap at the circular array position of the placement table 2. The setting of the turntable cover 101 can protect the turntable 1 from direct impact and pollution from objects above, and prevent the turntable from entraining debris or causing personal injury during rotation. The design of the arc-shaped gap allows parts to move and position smoothly on the turntable 1, while avoiding direct friction between the cover and the parts, reducing the risk of wear and damage to the parts.

[0034] The limit rope 14 is made of elastic steel, which is a metal material with excellent elastic properties and a special internal structure. It can be deformed under the action of external force without permanent plastic deformation, so that it can adapt to repeated winding and pulling.

[0035] Working principle: A driving assembly is provided at the bottom of the turntable 1 so that the turntable 1 can rotate. The staff will place the parts that need to be installed with bearings on the placement table 2. The parts will perform circular motion with the movement of the turntable 1. Along the movement direction of the turntable 1, an oiling device, a mechanical arm for placing bearings and a sleeve for pressing are provided on its side. First, the oiling device injects lubricating oil into the position where the bearing is installed inside the part, and then the mechanical arm puts the bearing into the part. Finally, the sleeve and the bearing are pressed into the part to complete the installation. During the installation process, the parts placed on the placement table 2 need to ensure accurate positioning. Through the moving assembly 13 provided on the first guide rail 11 and the second guide rail 12 located on the inner and outer sides of the placement table 2, the moving assembly 13 on the first guide rail 11 and the moving assembly 13 on the second guide rail 12 are connected between the limiting rope 14. Through the angle difference between the moving assemblies 13 on different guide rails, the limiting rope 14 has different inclination angles. When the inclination angle of the limiting rope 14 is different, the contact position with the parts on the placement table 2 is different during the movement. By applying force in different directions, the position of the parts on the placement table 2 can be adjusted. By providing a light-transmitting hole 231 on the placement table 2 and detecting the light passing through the light-transmitting hole 231 through the detection component 22, the coverage area and offset position of the parts on the placement table 2 can be calculated. The moving component 13 drives the limiting rope 14 to push the parts so that the parts completely cover the placement table 2. The position of the parts coincides with the position of the placement table 2, thereby realizing the positioning of the parts by the device. Subsequently, the moving components 13 on different guide rails adjust their positions so that the limiting rope 14 applies force evenly to both sides of the parts to achieve the effect of fixing the position. Most of the parts that need to be installed with bearings are circular, and the placement table 2 is also circular with the same shape. During the working process, it is only necessary to locate the position of the placement table 2 in the turntable 1, and the position of the placement table 2 is a fixed position, which ensures the accurate installation of the bearings and can dynamically adjust the parts. The staff does not need to place the parts accurately. At the same time, the offsets of the parts during transportation and installation can be adjusted and fixed in time.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor bearing positioning and installation device, comprising a turntable (1), the turntable (1) being arranged in a bearing installation area, a driving assembly being arranged at the bottom of the turntable (1) so as to enable it to rotate, a placement table (2) for placing parts being arranged in a circumferential array at the upper edge of the turntable (1), and an oiling device, a mechanical arm for placing a bearing, and a sleeve for pressing the bearing being arranged along the movement direction of the placement table (2), characterized in that: The placing table (2) is provided with a second guide rail (12) and a first guide rail (11) on the inner and outer sides respectively; the first guide rail (11) and the second guide rail (12) are provided with the same number of moving components (13); the moving components (13) can move on the first guide rail (11) and the second guide rail (12); a limiting rope (14) is connected between the moving components (13) on the first guide rail (11) and the moving components (13) on the second guide rail (12); the limiting rope (14) is elastic; when the moving components (13) on the first guide rail (11) and the second guide rail (12) have an angle difference, the limiting rope (14) can generate an inclination angle.

2. The motor bearing positioning and installation device according to claim 1, characterized in that: The number of movable components (13) on the first guide rail (11) and the second guide rail (12) is twice the number of placement tables (2), and two pairs of movable components (13) are arranged next to each placement table (2).

3. The motor bearing positioning and installation device according to claim 1, characterized in that: The placement platform (2) is provided with a light-transmitting hole (231), and a detection component (22) for detecting light passing through the light-transmitting hole (231) is provided inside the placement platform (2).

4. The motor bearing positioning and installation device according to claim 3 is characterized in that: The placement table (2) is composed of a base (21) and a cover plate (23); the base (21) is arranged on the turntable (1); the cover plate (23) is arranged on the base (21) and is a detachable structure; the light-transmitting hole (231) is arranged on the cover plate (23); and the detection component (22) is arranged on the base (21) and below the cover plate (23).

5. The motor bearing positioning and installation device according to claim 4, characterized in that: The cover plate (23) is in the shape of a bottle cap, and the edge of the base (21) extends upward to form a circular wall surface, so that the cover plate (23) can be directly covered on the base (21) to fix its position.

6. The motor bearing positioning and installation device according to claim 4, characterized in that: The light-transmitting hole (231) is arranged at the edge of the cover plate (23) and is in the shape of a circular ring.

7. The motor bearing positioning and installation device according to claim 4, characterized in that: The moving component (13) is provided with a winding structure inside, which can wind the limiting rope (14) inside or release it from the inside.

8. The motor bearing positioning and installation device according to claim 1, characterized in that: A turntable cover plate (101) is arranged above the turntable (1), and the turntable cover plate (101) leaves an arc-shaped gap at a circumferential array position of the placement table (2).

9. The motor bearing positioning and installation device according to claim 1, characterized in that: The limiting rope (14) is made of elastic steel.

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