Motor bearing hoisting jig

Abstract

The utility model relates to a motor bearing hoisting jig, belong to motor production auxiliary equipment technical field, including motor spindle, the motor spindle front end is equipped with hoisting subassembly, hoisting subassembly with motor spindle between be equipped with with the nesting connection of motor spindle's motor bearing. Hoisting subassembly includes hoisting jig support disc, the outer circle of hoisting jig support disc is equipped with a plurality of annular distribution's limit block, the lower extreme of limit block is equipped with the hook -shaped clamping block, the hook -shaped clamping block is equipped with the hoisting screw rod that penetrates to the upper end of limit block, the upper end of limit block is equipped with with the threaded type sleeve joint of hoisting screw rod's adjusting nut. Have the characteristics such as high structural stability, operation safe and convenient and high efficiency. Through the even clamping of multipoint and integrated overturn design, realized the stable, accurate, safe hoisting and installation of bearing, solved the bearing inclination, uneven stress and jig dismounting difficult and so on in traditional hoisting mode.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for motor production, specifically to a motor bearing hoisting fixture. Background Technology

[0002] In modern industrial manufacturing, electric motors serve as the core power source, and their performance, reliability, and service life are of paramount importance. Motor bearings, as key components supporting the motor shaft and ensuring its smooth rotation, directly determine the overall operating accuracy, noise, vibration, and lifespan of the motor through their assembly quality. Therefore, bearing installation is a highly demanding process in motor manufacturing and maintenance.

[0003] As motor power continues to increase, the size and weight of the bearings being assembled also increase accordingly. While some existing hoisting equipment can lift bearings, it has shortcomings in terms of docking with bearings, clamping them, and adapting to bearings of different specifications.

[0004] Currently, traditional methods for installing bearings in medium and large motors mainly present the following problems and challenges: 1. Unstable hoisting process, prone to bearing tilting and eccentricity: Traditional hoisting methods typically use simple slings or wire ropes to bind the bearing, or simple hooks. This method cannot guarantee the bearing's horizontal position during hoisting. Due to the difficulty in controlling the center of gravity, the bearing is prone to swaying, tilting, or even flipping in the air. When the bearing is inserted into the motor spindle at an angle, it is very easy for the bearing to jam or collide with the spindle, making alignment difficult and potentially scratching the precision mating surfaces of the spindle or bearing, affecting assembly accuracy.

[0005] 2. Uneven clamping force poses a risk of bearing damage: Simple lifting tools typically have two or three clamping points, resulting in uneven clamping force distribution. During lifting and movement, excessive local stress may cause irreversible damage such as indentation or deformation of the bearing raceway or rolling elements. For precision bearings, even minor damage can severely impact their subsequent performance and lifespan. Furthermore, rigid clamping lacks cushioning, allowing impact loads to be directly transferred to the bearing.

[0006] 3. Low assembly efficiency and high labor intensity: Due to the instability of the hoisting process, operators need to spend a lot of time and energy manually adjusting the bearing's posture to achieve alignment. This is not only inefficient but also requires a high level of experience and skill from the operators. Such fine adjustments are particularly difficult in the confined assembly space, increasing the complexity and labor intensity of the assembly process.

[0007] 4. Lack of multi-angle assembly capability and poor applicability: Some special motor structures require bearings to be assembled at a specific angle (non-perpendicular direction). Traditional lifting tools almost never have the function of stable angle adjustment in the air. Even if they can be achieved, there are great safety risks, making it difficult to meet the assembly requirements of modern complex motor designs.

[0008] 5. Difficulty in disassembling jigs affects the overall workflow: Even if the bearings are installed in place, safely and quickly removing the lifting jig from above the spindle is a challenge. Traditional lifting jigs often need to be completely detached or removed from the lifting equipment before they can be taken out of the confined space. This process is cumbersome and time-consuming, disrupting the continuity of assembly and reducing overall production efficiency.

[0009] Currently, the assembly of large bearings traditionally relies on manual handling. This is not only labor-intensive, but also makes it difficult to ensure the bearing's stability and safety during handling, easily leading to bearing damage and affecting the quality and performance of the motor. Furthermore, manual handling is inefficient and cannot meet the demands of large-scale production. Summary of the Invention

[0010] This utility model mainly addresses the shortcomings of existing technologies by providing a motor bearing hoisting fixture, which features high structural stability, safe and convenient operation, and high efficiency. Through multi-point uniform clamping and integrated flipping design, it achieves stable, precise, and safe hoisting and installation of bearings, solving problems such as bearing tilting, uneven force distribution, and difficulty in fixture disassembly that easily occur in traditional hoisting methods.

[0011] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions: A motor bearing hoisting fixture includes a motor spindle. A hoisting assembly is located at the front end of the motor spindle, and a motor bearing is nested and connected between the hoisting assembly and the motor spindle. The hoisting assembly includes a hoisting fixture support plate. A plurality of annularly distributed limiting blocks are provided on the outer circumference of the support plate. A hook-shaped clamping block is provided at the lower end of each limiting block. A hoisting screw extends through the hook-shaped clamping block to the upper end of the limiting block. An adjusting nut, threadedly connected to the hoisting screw, is provided at the upper end of each limiting block.

[0012] Preferably, a pair of symmetrically distributed limiting blocks are provided with lifting ring blocks at their outer ends, and the lifting ring blocks are provided with flip support studs that are threadedly connected to the limiting blocks and the lifting ring blocks.

[0013] Preferably, a connecting plate is provided between the limiting block and the lifting ring block, which is fixed to the limiting block by a countersunk bolt.

[0014] Preferably, a spring is provided between the limiting block and the hook-shaped clamping block to be sleeved with the lifting screw.

[0015] Preferably, the lifting fixture support plate is provided with a pair of flip bolts that are threadedly connected to the lifting fixture support plate.

[0016] This invention can achieve the following effects: This invention provides a motor bearing hoisting fixture, which, compared with existing technologies, features high structural stability, safe and convenient operation, and high efficiency. Through multi-point uniform clamping and an integrated flipping design, it achieves stable, precise, and safe hoisting and installation of bearings, solving problems such as bearing tilting, uneven force distribution, and difficulty in fixture disassembly that easily occur in traditional hoisting methods. It is particularly suitable for the assembly of bearings in large, precision motors, significantly improving assembly quality and production efficiency.

[0017] High precision and stability: Multiple clamping points distributed in a ring can evenly clamp the bearing, effectively preventing tilting and shaking during hoisting, ensuring the coaxiality of the bearing and the spindle, and improving installation accuracy.

[0018] Highly adjustable: Each clamping point is equipped with an independent adjusting nut, which can finely adjust the height of each hook-shaped clamp to adapt to bearings of different specifications or with slight deformation, making it widely applicable.

[0019] Safe and convenient operation: The entire hoisting process can be completed simply by rotating the nut to clamp and loosen, making operation simple. The spring setting provides cushioning protection, reducing operational difficulty and safety risks.

[0020] Integrated design for high efficiency: This fixture integrates the entire process of "clamping-lifting-flipping-removal". In particular, the design of the flipping support stud and flipping bolt allows the fixture to be easily removed after the bearing is loosened, without disassembling the entire fixture, which greatly improves assembly efficiency.

[0021] The structure is robust and reliable: the limiting block and the lifting ring block are fixed by the connecting plate, which enhances the connection strength of the key stress parts and ensures the stability and safety of the fixture when lifting heavy bearings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a structural schematic diagram of the hoisting component in this utility model.

[0024] Figure 3 This is a structural cross-sectional view of the hoisting component in this utility model.

[0025] In the diagram: 1. Lifting assembly; 2. Motor bearing; 3. Motor spindle; 4. Lifting fixture support plate; 5. Tilting bolt; 6. Limiting block; 7. Adjusting nut; 8. Lifting eye block; 9. Lifting screw; 10. Hook-shaped clamp; 11. Spring; 12. Connecting plate; 13. Tilting support stud. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0027] Example: Figure 1 , Figure 2 and Figure 3 As shown, a motor bearing hoisting fixture includes a motor spindle 3, with a hoisting assembly 1 at the front end of the motor spindle 3. A motor bearing 2, nested and connected to the motor spindle 3, is located between the hoisting assembly 1 and the motor spindle 3. The hoisting assembly 1 includes a hoisting fixture support plate 4, on which a pair of rotating bolts 5 are threadedly engaged. Four equally spaced annularly distributed limiting blocks 6 are located on the outer circumference of the hoisting fixture support plate 4. Hook-shaped clamping blocks 10 are located at the lower end of each limiting block 6, and hoisting screws 9 extend from the hook-shaped clamping blocks 10 to the upper end of each limiting block 6. A spring 11, engaged with the hoisting screw 9, is located between the limiting blocks 6 and the hook-shaped clamping blocks 10. An adjusting nut 7, threadedly engaged with the hoisting screw 9, is located at the upper end of each limiting block 6. A pair of symmetrically distributed limiting blocks 6 have lifting ring blocks 8 on their outer ends. The lifting ring blocks 8 are provided with flip support studs 13 that are threadedly connected to the limiting blocks 6 and the lifting ring blocks 8. A connecting plate 12 is provided between the limiting blocks 6 and the lifting ring blocks 8 and is fixedly connected to the limiting blocks 6 with countersunk bolts.

[0028] Work process: (1) Fixing the motor bearing 2: Place the motor bearing 2 on a horizontal support surface, use an external hex wrench to rotate the hook-shaped clamp 10 so that the groove line of the hook-shaped clamp 10 is aligned with the groove line of the fixture, and then use an open wrench to tighten the adjusting nut 7. The spring 11 is compressed to generate buffer force, ensuring that the motor bearing 2 is firmly clamped and undamaged.

[0029] (2) Lifting operation: The lifting equipment is connected through the lifting ring block 8 on the upper part of the lifting assembly 1. During the lifting process, the lifting tool automatically maintains balance to prevent the motor bearing 2 from shaking.

[0030] (3) Flip adjustment: If it is necessary to adjust the angle of motor bearing 2, loosen the flip bolt 5, rotate the flip support to the target angle (0-90°), and then tighten the flip bolt 5 to fix the position, so as to realize the multi-angle assembly requirements of motor bearing 2.

[0031] (4) Loosening the motor bearing 2: After assembly, use an external hex wrench to turn the groove line of the hook-shaped clamp 10 to the opposite side, so that the hook of the hook-shaped clamp 10 disengages from the motor bearing 2, releasing the clamping force, and the motor bearing 2 can be removed. Then tighten the adjusting nut 7 (to prevent loosening), and then remove the fixture. Tightening the adjusting nut 7 is to prevent the lifting screw 9 and the hook-shaped clamp 10 from loosening and falling off during hoisting or storage.

[0032] In summary, this motor bearing hoisting fixture features high structural stability, safe and convenient operation, and high efficiency. Through multi-point uniform clamping and an integrated flipping design, it achieves stable, precise, and safe hoisting and installation of bearings, solving problems such as bearing tilting, uneven force distribution, and difficulty in fixture disassembly that easily occur in traditional hoisting methods. It is particularly suitable for the assembly of bearings in large, precision motors, significantly improving assembly quality and production efficiency.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A motor bearing hoisting fixture, comprising a motor spindle (3), characterized in that: The motor spindle (3) is provided with a hoisting assembly (1) at its front end. The hoisting assembly (1) and the motor spindle (3) are provided with a motor bearing (2) that is nested and connected to the motor spindle (3). The hoisting assembly (1) includes a hoisting fixture support plate (4). The outer circle of the hoisting fixture support plate (4) is provided with several limit blocks (6) arranged in a ring. The lower end of the limit block (6) is provided with a hook-shaped clamping block (10). The hook-shaped clamping block (10) is provided with a hoisting screw (9) that extends through to the upper end of the limit block (6). The upper end of the limit block (6) is provided with an adjusting nut (7) that is threadedly connected to the hoisting screw (9).

2. The motor bearing hoisting fixture according to claim 1, characterized in that: A pair of symmetrically distributed limiting blocks (6) are provided with lifting ring blocks (8) at their outer ends. The lifting ring blocks (8) are provided with flip support studs (13) that are threadedly connected to the limiting blocks (6) and the lifting ring blocks (8).

3. The motor bearing hoisting fixture according to claim 2, characterized in that: A connecting plate (12) is provided between the limiting block (6) and the lifting ring block (8) and is fixed to the limiting block (6) by a countersunk bolt.

4. The motor bearing hoisting fixture according to claim 1, characterized in that: A spring (11) is provided between the limiting block (6) and the hook-shaped clamping block (10) to be connected with the hoisting screw (9).

5. The motor bearing hoisting fixture according to claim 1, characterized in that: The hoisting fixture support plate (4) is provided with a pair of flip bolts (5) that are threadedly connected to the hoisting fixture support plate (4).

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