Shaft mounting structure and motor

By using pretension elements to apply pretension pressure to the rotary support elements in the installation structure of the motor shaft, the problem of large friction loss of the existing motor shaft is solved, and higher stability and longer service life are achieved.

CN222721257UActive Publication Date: 2025-04-04DONGGUAN DIRECT DRIVE TECH LTD
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Patent Information

Application Number
CN202421048740.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-04-04
Estimated Expiration
2034-05-14

AI Technical Summary

Technical Problem

The installation structure of the existing motor shaft leads to large friction loss during work, affecting structural stability and accuracy.

Method used

A rotary shaft mounting structure is adopted, including a base, a first rotary support element, a second rotary support element, a preloading element, a fixing element and a rotary shaft. The preloading force is applied to the rotary support element through the preloading element to ensure that the rotary shaft is firmly supported and rotated in the placement cavity.

Benefits of technology

It improves the stability of the motor, reduces friction losses, facilitates maintenance and replacement, extends the service life of the motor, and improves working efficiency and reliability.

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Abstract

The utility model relates to the technical field of motors, in particular to a shaft mounting structure and a motor, comprising a base, a first rotating support element, a second rotating support element, a pre-tightening element, a fixing element and a rotating shaft, wherein the base is provided with a placement cavity, wherein the placement cavity is provided with a first rotating support groove and a second rotating support groove, wherein the first rotating support element is provided in the first rotating support groove, wherein the second rotating support element is provided in the second rotating support groove, wherein one end of the rotating shaft passes through and is connected to the first rotating support element and the second rotating support element in sequence; wherein the fixing element is provided at one end of the rotating shaft, and the pre-tightening element is provided on the first rotating support groove. The utility model can improve the stability of the motor, reduce friction loss, improve the stability of the rotating shaft, help improve the working efficiency and reliability of the motor, and meet the requirements of motor performance in different industrial fields.
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Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a rotating shaft installation structure and a motor. Background Art

[0002] A motor is a device that converts electrical energy into mechanical energy through the principle of electromagnetic induction. A motor usually consists of a stator (stationary part) and a rotor (rotating part). The magnetic field generated in the stator interacts with the conductor in the rotor to generate a rotational force that drives the rotor to rotate. Motors are widely used in various fields, including industry, home, transportation, etc., and are one of the indispensable and important equipment in modern society.

[0003] The rotating shaft is one of the essential components of the motor. The rotating shaft of the motor refers to the shaft used to support and rotate the rotor part of the motor, also known as the rotor shaft or rotating shaft. The rotating shaft is usually a cylindrical metal shaft, one end of which is connected to the rotor part, and the other end is connected to the fixed part of the motor (such as the casing or base) through a rotating element and other structures. Due to design reasons, the existing motor rotor installation structure has large friction losses during operation, affecting the structural stability and accuracy. Therefore, it is necessary to improve the installation structure of the existing motor shaft. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a shaft mounting structure and a motor that can improve the stability of the motor, reduce friction loss, facilitate maintenance and replacement, improve the stability of the shaft and optimize the motor performance, etc., which brings multiple technical effects, helps to improve the working efficiency and reliability of the motor, and meet the requirements of motor performance in different industrial fields.

[0005] The technical solution adopted by the utility model is: a rotating shaft installation structure, including a base, a first rotating support element, a second rotating support element, a pre-tightening element, a fixing element and a rotating shaft, the base is provided with a placement cavity, the placement cavity is provided with a first rotating support groove and a second rotating support groove, the first rotating support element is arranged in the first rotating support groove, the second rotating support element is arranged in the second rotating support groove, one end of the rotating shaft passes through and is connected to the first rotating support element and the second rotating support element in sequence; the fixing element is arranged at one end of the rotating shaft to limit the first rotating support element on the first rotating support groove, the pre-tightening element is arranged on the first rotating support groove, and applies a pre-tightening pressure to the first rotating support element toward the fixing element.

[0006] A further improvement to the above solution is that a partition table is provided between the first rotation support groove and the second rotation support groove; one side of the second rotation support element abuts against one side of the partition table, and the preload element is provided between the partition table and the first rotation support element.

[0007] A further improvement to the above solution is that a covering ring is provided at one end of the base located in the second rotation support groove, the covering ring is formed by a protrusion on one side of the base, and one end of the second rotation support element extends to the inner diameter of the covering ring.

[0008] A further improvement to the above solution is that the pre-tightening element is a corrugated spring piece.

[0009] A further improvement to the above solution is that a fixing groove is provided at one end of the rotating shaft, and the fixing element is a fixing ring, and the inner diameter of the fixing ring is clamped in the fixing groove.

[0010] A further improvement to the above scheme is that a clamping step is provided at one end of the rotating shaft, one side of the clamping step abuts against the second rotating support element, a rotating connection position is formed between the clamping step and the fixed element, and the first rotating support element and the second rotating support element are in the rotating connection position.

[0011] A further improvement to the above solution is that an insertion end is provided at one end of the rotating shaft close to the fixing element, and the insertion end is provided with an insertion slope.

[0012] A motor comprises the rotating shaft mounting structure.

[0013] A further improvement to the above scheme is that one end of the rotating shaft is connected to a rotor housing, a stator element is installed on the outer periphery of the base, a rotor element is arranged on the inner diameter of the rotor housing, and the rotor element is arranged opposite to the stator element.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the existing motor shaft installation structure, the utility model has a fixed element arranged at one end of the rotating shaft to limit the first rotating support element on the first rotating support groove, and a pre-tightening element is arranged on the first rotating support groove to apply a pre-tightening pressure to the first rotating support element toward the fixed element. It is ensured that the first rotating support element can have a pre-tightening force in the first rotating support groove, and the rotating shaft has better stability when rotating inside.

[0016] The utility model can ensure that the rotating shaft is stably supported and rotated in the placement cavity through the combined design of the base, the rotating support element, the pre-tightening element and the fixing element. The arrangement of the first rotating support groove and the second rotating support groove and the pressure applied by the pre-tightening element to the rotating support element effectively limit the position and movement range of the rotating shaft and improve the stability of the overall structure.

[0017] The utility model can reduce the friction loss generated during the rotation process and improve the operation efficiency of the motor by connecting the first rotating support element and the second rotating support element to the rotating shaft. The setting of the preload element can adjust the preload pressure on the rotating support element, further reduce friction and wear, and extend the service life of the motor.

[0018] The setting of the fixing element of the utility model enables the first rotating support element to be limited on the first rotating support groove, so when the rotating shaft needs to be maintained or replaced, the operation can be performed more conveniently and quickly, saving maintenance time and cost.

[0019] Since one end of the rotating shaft of the utility model is connected to the first rotating support element and the second rotating support element, the overall structure is relatively stable, which helps to reduce vibration and noise and improve the running stability and working efficiency of the motor.

[0020] The application of the above-mentioned shaft mounting structure on the motor can bring multiple technical effects in improving the stability of the motor, reducing friction loss, facilitating maintenance and replacement, improving shaft stability and optimizing motor performance, etc., which helps to improve the working efficiency and reliability of the motor and meet the requirements of motor performance in different industrial fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the rotating shaft installation structure of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the rotating shaft installation structure;

[0023] Figure 3 for Figure 1 A schematic diagram of the main view of the rotating shaft installation structure;

[0024] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0025] Figure 5 This is the front view of the motor of the utility model;

[0026] Figure 6 for Figure 5 Cross-sectional view of BB.

[0027] Explanation of the accompanying drawings: base 1, placement cavity 11, first rotation support groove 12, second rotation support groove 13, partition table 14, covering ring 15, first rotation support element 2, second rotation support element 3, pre-tightening element 4, fixing element 5, rotating shaft 6, fixing slot 61, clamping step 62, insertion end 63, insertion slope 631, rotor housing 7, stator element 8, rotor element 9. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] like Figure 1 to Figure 4 As shown, in one embodiment of the utility model, a rotating shaft installation structure is involved, including a base 1, a first rotating support element 2, a second rotating support element 3, a pre-tightening element 4, a fixing element 5 and a rotating shaft 6, the base 1 is provided with a placement cavity 11, the placement cavity 11 is provided with a first rotating support groove 12 and a second rotating support groove 13, the first rotating support element 2 is arranged in the first rotating support groove 12, the second rotating support element 3 is arranged in the second rotating support groove 13, one end of the rotating shaft 6 passes through and is connected to the first rotating support element 2 and the second rotating support element 3 in sequence; the fixing element 5 is arranged at one end of the rotating shaft 6 to limit the first rotating support element 2 on the first rotating support groove 12, the pre-tightening element 4 is arranged on the first rotating support groove 12, and the pre-tightening pressure is applied to the first rotating support element 2 toward the fixing element 5. In this embodiment, the fixing element 5 is arranged at one end of the rotating shaft 6 to limit the first rotating support element 2 on the first rotating support groove 12, the pre-tightening element 4 is arranged on the first rotating support groove 12, and the pre-tightening pressure is applied to the first rotating support element 2 toward the fixing element 5. It is ensured that the first rotation support element 2 can have a pre-tightening force in the first rotation support groove 12, and the rotation shaft 6 has better stability when rotating inside.

[0032] In the above embodiment, the combined design of the base 1, the rotation support element, the pre-tightening element 4 and the fixing element 5 can ensure that the rotation shaft 6 is stably supported and rotated in the placement cavity 11. The arrangement of the first rotation support groove 12 and the second rotation support groove 13 and the pressure applied by the pre-tightening element 4 to the rotation support element effectively limit the position and range of motion of the rotation shaft 6, thereby improving the stability of the overall structure.

[0033] In the above embodiment, by connecting the first rotating support element 2 and the second rotating support element 3 with the rotating shaft 6, the friction loss generated during the rotation process can be reduced, and the operating efficiency of the motor can be improved. The setting of the preload element 4 can adjust the preload pressure on the rotating support element, further reduce friction and wear, and extend the service life of the motor.

[0034] In the above embodiment, the setting of the fixing element 5 enables the first rotating support element 2 to be limited on the first rotating support groove 12, so that when the rotating shaft 6 needs to be maintained or replaced, the operation can be performed more conveniently and quickly, saving maintenance time and cost.

[0035] In the above embodiment, since one end of the rotating shaft 6 is connected to the first rotating support element 2 and the second rotating support element 3, the overall structure is relatively stable, which helps to reduce vibration and noise and improve the running stability and working efficiency of the motor.

[0036] A partition table 14 is arranged between the first rotation support groove 12 and the second rotation support groove 13; one side of the second rotation support element 3 abuts against one side of the partition table 14, and the preload element 4 is arranged between the partition table 14 and the first rotation support element 2. In this embodiment, the partition table 14 is arranged between the first rotation support groove 12 and the second rotation support groove 13 to form a stable support structure, which helps to enhance the stability and rigidity of the overall structure. The abutment of the second rotation support element 3 and the partition table 14 can effectively separate and fix the two rotation support elements to prevent them from moving or misaligning, thereby improving the working stability and reliability of the motor. By arranging the preload element 4 between the partition table 14 and the first rotation support element 2, the first rotation support element 2 can be preloaded and the load borne by the bearing can be effectively shared. This design can reasonably distribute the force of the bearing, reduce local stress concentration, and extend the service life of the bearing and rotating parts. The introduction of the partition table 14 is not only conducive to structural stability, but also makes the connection between the components more firm, reducing the risk of wear and damage caused by vibration or noise during operation. This can reduce motor maintenance costs, reduce downtime, and improve equipment reliability and durability.

[0037] The base 1 is provided with a covering ring 15 at one end of the second rotating support groove 13, and the covering ring 15 is formed by a protrusion on one side of the base 1, and one end of the second rotating support element 3 extends to the inner diameter of the covering ring 15. In this embodiment, the design of the covering ring 15 makes the connection between the second rotating support element 3 and the base 1 tighter and more stable, which helps to improve the stability of the overall structure and the operation accuracy. This design can effectively prevent the loosening or misalignment of components caused by vibration or other factors during operation, and ensure the normal operation of the motor. The design of the covering ring 15 makes the connection between the second rotating support element 3 and the base 1 more stable, reduces the risk of loosening and falling off, and helps to reduce the frequency of maintenance and replacement. This can save maintenance time and cost, and improve the reliability and continuous operation time of the motor.

[0038] The first rotating support element 2 and the second rotating support element 3 are both bearings. Using bearings as rotating support elements can simplify the maintenance process of the motor. Bearings usually have certain self-lubricating properties, reducing the need for maintenance and lubrication.

[0039] The preload element 4 is a corrugated spring. In this embodiment, the corrugated spring as the preload element 4 can provide an appropriate preload force, effectively maintain the close contact between the rotating shaft 6 and other supporting elements, and ensure that it will not loosen or swing during operation. This helps to improve the stability and working accuracy of the overall structure. The corrugated spring has a certain elasticity and buffering performance, which can absorb vibration and impact force when the motor is running, reduce the vibration transmitted to other components, reduce the noise and vibration level, and improve the working environment of the motor. The corrugated spring has a certain deformation ability and adaptability, and can adapt to the pressure and load changes under different working conditions within a certain range. This enables the preload element 4 to effectively adapt to the needs under different working conditions and improve the stability and reliability of the motor. The corrugated spring has a wavy annular structure, has a certain elasticity and buffering performance, can absorb vibration and impact force when the motor is running, and reduce the vibration transmitted to other components.

[0040] A fixed slot 61 is provided at one end of the rotating shaft 6, and the fixed element 5 is a fixed snap ring, and the inner diameter of the fixed snap ring is clamped in the fixed slot 61. In this embodiment, by providing a fixed slot 61 at one end of the rotating shaft 6 and using a fixed snap ring as the fixed element 5, a stable fixed connection can be achieved. The inner diameter of the fixed snap ring is clamped in the fixed slot 61, which ensures the tight connection between the fixed element 5 and the rotating shaft 6, prevents loosening or falling off during operation, and improves the stability of the overall structure. The design of the fixed snap ring makes the installation and disassembly process simpler and faster. Only by clamping the inner diameter of the fixed snap ring into the fixed slot 61, the connection between the fixed element 5 and the rotating shaft 6 can be completed without complicated tools or steps. This helps to reduce the time cost of maintenance and replacement and improve work efficiency. Specifically, in this embodiment, the fixed snap ring is a snap ring, which is provided with a notch, and can be elastically deformed when it is sleeved on the rotating shaft 6 until it is clamped through the groove on the rotating shaft 6, which is convenient for assembly.

[0041] A clamping step 62 is provided at one end of the rotating shaft 6, one side of the clamping step 62 abuts against the second rotating support element 3, and a rotating connection position is formed between the clamping step 62 and the fixed element 5, and the first rotating support element 2 and the second rotating support element 3 are in the rotating connection position. In this embodiment, by providing a clamping step 62 at one end of the rotating shaft 6 and making one side abut against the second rotating support element 3 to form a rotating connection position, a stable connection can be achieved. This design ensures a tight connection between the first rotating support element 2 and the second rotating support element 3, improves the stability of the overall structure, and is conducive to the stability and reliability of the motor during operation. A rotating connection position is formed between the clamping step 62 and the fixed element 5, so that the first rotating support element 2 and the second rotating support element 3 can rotate freely in the rotating connection position. This design increases the flexibility between the rotating parts, which helps the motor to better adapt to various working conditions and needs during operation. One side of the clamping step 62 abuts against the second rotating support element 3 to form a rotating connection position, which can reduce friction and wear between parts. Through a good abutment design, the friction of the rotating parts during operation can be reduced, the service life of the parts can be extended, and the maintenance cost can be reduced.

[0042] An insertion end 63 is provided at one end of the rotating shaft 6 close to the fixed element 5, and the insertion end 63 is provided with an insertion bevel 631. In this embodiment, by providing the insertion end 63 at one end of the rotating shaft 6 close to the fixed element 5, and providing the insertion bevel 631 at the insertion end 63, convenient installation and disassembly can be achieved. The design of the insertion bevel 631 makes the insertion process smoother, reduces the resistance during installation, and improves the installation efficiency; at the same time, it is also easier to take out the components during disassembly, reducing the difficulty of maintenance and replacement. The setting of the insertion bevel 631 can ensure that a stable connection is formed between the insertion end 63 and other components. The design of the insertion bevel 631 enables the insertion end 63 to be correctly inserted into the corresponding position and remain stable during use, preventing the connection from loosening or falling off due to external force or vibration, thereby improving the reliability of the overall structure.

[0043] like Figure 1 to Figure 6 As shown, a motor includes the above-mentioned shaft mounting structure, one end of the rotating shaft 6 is connected to a rotor housing 7, a stator element 8 is installed on the outer periphery of the base 1, and a rotor element 9 is provided on the inner diameter of the rotor housing 7, and the rotor element 9 is arranged opposite to the stator element 8. The motor realizes rotation through the cooperation of the rotor element 9 and the stator element 8. The application on the motor can bring multiple technical effects in terms of improving the stability of the motor, reducing friction loss, facilitating maintenance and replacement, improving the stability of the shaft and optimizing the performance of the motor, which helps to improve the working efficiency and reliability of the motor and meet the requirements of motor performance in different industrial fields.

[0044] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A rotating shaft installation structure, characterized in that: It includes a base, a first rotating support element, a second rotating support element, a pre-tightening element, a fixing element and a rotating shaft, wherein the base is provided with a placement cavity, wherein the placement cavity is provided with a first rotating support groove and a second rotating support groove, wherein the first rotating support element is provided in the first rotating support groove, wherein the second rotating support element is provided in the second rotating support groove, and wherein one end of the rotating shaft passes through and is connected to the first rotating support element and the second rotating support element in sequence; The fixing element is arranged at one end of the rotating shaft to limit the first rotating support element on the first rotating support groove, and the pre-tightening element is arranged on the first rotating support groove to apply pre-tightening pressure to the first rotating support element toward the fixing element.

2. The shaft installation structure according to claim 1, characterized in that: A partition table is arranged between the first rotation support groove and the second rotation support groove; one side of the second rotation support element abuts against one side of the partition table, and the pre-tightening element is arranged between the partition table and the first rotation support element.

3. The shaft installation structure according to claim 1, characterized in that: A covering ring is provided at one end of the base located in the second rotation support groove. The covering ring is formed by a protrusion on one side of the base. One end of the second rotation support element extends to the inner diameter of the covering ring.

4. The rotating shaft installation structure according to claim 1, characterized in that: The pre-tightening element is a corrugated spring piece.

5. The rotating shaft installation structure according to claim 1, characterized in that: A fixing slot is arranged at one end of the rotating shaft, and the fixing element is a fixing snap ring, the inner diameter of which is clamped in the fixing slot.

6. The rotating shaft installation structure according to claim 1, characterized in that: A clamping step is provided at one end of the rotating shaft, one side of the clamping step abuts against the second rotating support element, a rotating connection position is formed between the clamping step and the fixing element, and the first rotating support element and the second rotating support element are in the rotating connection position.

7. The rotating shaft installation structure according to claim 1, characterized in that: An insertion end is arranged at one end of the rotating shaft close to the fixing element, and the insertion end is provided with an insertion inclined surface.

8. A motor, characterized in that: It comprises the rotating shaft installation structure as described in any one of claims 1 to 7.

9. The motor according to claim 8, characterized in that: One end of the rotating shaft is connected to a rotor housing, a stator element is installed on the outer periphery of the base, a rotor element is arranged on the inner diameter of the rotor housing, and the rotor element is arranged opposite to the stator element.