Flexible coupling for servo motor

Abstract

This utility model discloses a flexible coupling for a servo motor, comprising a fixed connecting shaft and an elastic connecting piece. A first flexible spring is mounted on the right end of the fixed connecting shaft, and the elastic connecting piece is disposed on the inner wall of the first flexible spring. A second flexible spring is provided at the end of the elastic connecting piece, and a fixed shaft is provided at the end of the first flexible spring. This flexible coupling for a servo motor, through the elastic structure formed by the combination of the first and second flexible springs, can absorb vibration and impact, reduce vibration and noise in mechanical equipment, extend the service life of the equipment, reduce the additional load caused by the misalignment of the two shafts, reduce mechanical stress caused by eccentricity, protect bearings and other transmission components, and the deformation of the elastic structure compensates for the relative displacement between the two shafts, including axial, radial, and angular deviations, thereby ensuring the smoothness and accuracy of transmission. The threaded connection of the mounting shaft block and the mounting shaft hole facilitates the assembly of the coupling joint.

Description

Technical Field

[0001] This utility model relates to the field of servo motor technology, specifically a flexible coupling for servo motors. Background Technology

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor indirect speed-changing device. Servo motors can control speed with very high positional accuracy, converting voltage signals into torque and speed to drive the controlled object. A servo motor flexible coupling is a coupling capable of producing minute elastic deformation within a certain range to adapt to axial and angular displacements that may occur during movement. It is mainly used in applications requiring the resistance to large axial and angular displacements, such as conveying machinery, pumps, and compressors. A servo motor flexible coupling typically consists of two hubs and an intermediate elastic component, such as a spring or toothed rod. This design allows the coupling to undergo minute elastic deformation within a certain range, thus adapting to various displacement and angular changes during movement.

[0003] As described in application number CN201721403542.9, this utility model provides a high-strength flexible coupling, comprising an intermediate connecting body and a first fixed sleeve and a second fixed sleeve connected to its two sides. The intermediate connecting body includes a corrugated tube body in the middle, with connecting portions on both sides for connecting to the first or second fixed sleeve. Metal reinforcing sleeves are provided on the inner wall of the first fixed sleeve away from the second fixed sleeve, and on the inner wall of the second fixed sleeve away from the first fixed sleeve. Several grooves are alternately formed on the first and second fixed sleeves at locations without metal reinforcing sleeves. The grooves are arranged along the outer circumference of the corresponding fixed sleeves. This utility model has a reasonable structural design; the corrugated tube body of the intermediate connecting body provides strong torsional resistance and high structural strength. Even under heavy loads and complex working conditions, it can work stably for a long time and is not easily damaged.

[0004] The above applications currently have the following shortcomings: Unstable elastic structures can cause noise and vibration during operation.

[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a flexible coupling for servo motors in order to achieve a more practical value. Utility Model Content

[0006] The purpose of this invention is to provide a flexible coupling for a servo motor to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a servo motor flexible coupling, comprising a fixed connecting shaft and an elastic connecting piece, wherein a first flexible spring is installed at the right end of the fixed connecting shaft, the elastic connecting piece is disposed on the inner wall of the first flexible spring, a second flexible spring is provided at the end of the elastic connecting piece, and a fixed shaft is provided at the end of the first flexible spring.

[0008] Furthermore, a connecting collar is fixed to the right end of the fixed shaft, and a mounting shaft hole is provided in the middle of the connecting collar.

[0009] Furthermore, a mounting shaft block is inserted through the interior of the mounting shaft hole, and a coupling joint is provided at the left end of the mounting shaft block.

[0010] Furthermore, a return spring is installed on the inner wall of the coupling joint, and a joint clamping piece is provided at the bottom end of the return spring.

[0011] Furthermore, a second connector clamping piece is disposed below the first connector clamping piece, and the shape and structure of the first connector clamping piece match the shape and structure of the second connector clamping piece.

[0012] Furthermore, the mounting shaft hole and the mounting shaft block are threadedly connected, and the mounting shaft block and the coupling joint are an integrated structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model utilizes an elastic structure composed of flexible spring sheet one and flexible spring sheet two to absorb vibration and impact, reduce vibration and noise in mechanical equipment, extend the service life of the equipment, reduce additional load caused by misalignment of the two shafts, reduce mechanical stress caused by eccentricity, protect bearings and other transmission components, and the deformation of the elastic structure compensates for the relative displacement between the two shafts, including axial, radial and angular deviations, thereby ensuring the smoothness and accuracy of transmission. The threaded connection between the mounting shaft block and the mounting shaft hole facilitates the assembly of the coupling joint. At the same time, the positions of the coupling clamping plate one and coupling clamping plate two can be changed by the return spring, so that they can be clamped with shafts of different sizes. Furthermore, the arc shape of the coupling clamping plate one and coupling clamping plate two allows them to fit well with the shaft, thereby improving the stability between the shaft and the coupling. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a servo motor flexible coupling according to the present invention; Figure 2 This is a three-dimensional structural diagram of a servo motor flexible coupling rotating motor mounting shaft block-joint clamping plate according to the present invention; Figure 3 This is a three-dimensional structural diagram of a flexible spring sheet for a servo motor flexible coupling according to the present invention.

[0015] In the diagram: 1. Fixed connecting shaft; 2. Flexible spring sheet one; 3. Fixed shaft; 4. Connecting shaft collar; 5. Mounting shaft hole; 6. Mounting shaft block; 7. Coupling joint; 8. Return spring; 9. Joint clamping piece one; 10. Joint clamping piece two; 11. Elastic connecting piece; 12. Flexible spring sheet two. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example like Figures 1-3 As shown, it includes a fixed connecting shaft 1 and an elastic connecting piece 11. A flexible spring piece 2 is installed at the right end of the fixed connecting shaft 1. The elastic connecting piece 11 is placed on the inner wall of the flexible spring piece 2. A flexible spring piece 2 12 is provided at the end of the elastic connecting piece 11. A fixed shaft 3 is provided at the end of the flexible spring piece 2. In summary, the elastic structure formed by the combination of flexible spring 12 and flexible spring 212 can absorb vibration and impact, reduce the vibration and noise of mechanical equipment, extend the service life of the equipment, reduce the additional load caused by the misalignment of the two shafts, reduce the mechanical stress caused by eccentricity, protect the bearings and other transmission components, and the deformation of the elastic structure can compensate for the relative displacement between the two shafts, including axial, radial and angular deviations, thereby ensuring the smoothness and accuracy of transmission. The threaded connection of the mounting shaft block 6 and the mounting shaft hole 5 facilitates the assembly of the coupling joint 7.

[0018] like Figures 1-3 As shown, a connecting shaft collar 4 is fixed to the right end of the fixed shaft 3, and a mounting shaft hole 5 is provided in the middle of the connecting shaft collar 4. A mounting shaft block 6 passes through the inside of the mounting shaft hole 5, and a coupling connector 7 is provided at the left end of the mounting shaft block 6. A return spring 8 is installed on the inner wall of the coupling connector 7, and a connector clamping piece 9 is provided at the bottom end of the return spring 8. A connector clamping piece 10 is placed below the connector clamping piece 9, and the shape and structure of the connector clamping piece 9 match the shape and structure of the connector clamping piece 10. The mounting shaft hole 5 and the mounting shaft block 6 are threadedly connected, and the mounting shaft block 6 and the coupling connector 7 are an integrated structure. In summary: The positions of the first clamping piece 9 and the second clamping piece 10 can be changed by the return spring 8, so that they can be clamped with shafts of different sizes. Furthermore, the first clamping piece 9 and the second clamping piece 10 are arc-shaped, which can fit well with the shaft, thereby improving the stability between them and the shaft.

[0019] Working principle: When this type of servo motor flexible coupling is in use, firstly according to... Figures 1-3 Rotating the coupling connector 7 connects the mounting shaft block 6 at the end of the coupling connector 7 with the mounting shaft hole 5, thereby connecting the coupling connector 7 with the connecting shaft collar 4. After assembly, the shaft of the servo motor is placed inside the coupling connector 7. At the same time, the coupling connector 7 is equipped with a connector clamping plate 9 and a connector clamping plate 10 containing a return spring 8. The positions of the two plates can be changed, so that they can clamp shafts of different sizes. The connector clamping plate 9 and the connector clamping plate 10 are arc-shaped, which can fit well with the shaft, thereby improving the stability between the shaft and the coupling connector. The elastic structure formed by the combination of the flexible spring plate 12 and the flexible spring plate 12 can absorb vibration and impact, reduce the vibration and noise of mechanical equipment, extend the service life of the equipment, reduce the additional load caused by the misalignment of the two shafts, reduce the mechanical stress caused by eccentricity, protect the bearings and other transmission components, and the deformation of the elastic structure can compensate for the relative displacement between the two shafts, including axial, radial and angular deviations, thereby ensuring the smoothness and accuracy of the transmission.

[0020] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A flexible coupling for a servo motor comprising a fixed connecting shaft (1) and an elastic connecting sheet (11), characterized in that, The right end of the fixed connecting shaft (1) is equipped with a flexible spring sheet (2), the elastic connecting piece (11) is placed on the inner wall of the flexible spring sheet (2), the end of the elastic connecting piece (11) is provided with a flexible spring sheet (12), and the end of the flexible spring sheet (2) is provided with a fixed shaft (3).

2. A flexible coupling for a servo motor as claimed in claim 1, wherein, The right end of the fixed shaft (3) is fixed with a connecting collar (4), and the middle part of the connecting collar (4) is provided with a mounting shaft hole (5).

3. A flexible coupling for a servo motor as claimed in claim 2, wherein, The mounting shaft hole (5) is provided with a mounting shaft block (6) inside, and a coupling joint (7) is provided at the left end of the mounting shaft block (6).

4. A flexible coupling for a servo motor as claimed in claim 3, wherein, The inner wall of the coupling joint (7) is equipped with a return spring (8), and the bottom end of the return spring (8) is provided with a joint clamping piece (9).

5. A flexible coupling for a servo motor as claimed in claim 4, wherein, A second connector clamping piece (10) is placed below the first connector clamping piece (9), and the shape and structure of the first connector clamping piece (9) match the shape and structure of the second connector clamping piece (10).

6. A flexible coupling for a servo motor as set forth in claim 3, wherein The mounting shaft hole (5) and the mounting shaft block (6) are threaded together, and the mounting shaft block (6) and the coupling joint (7) are an integrated structure.

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