Adjustable shock-absorbing servo motor

Abstract

The utility model discloses an adjustable damping servo motor, including motor main part, fixed base, floating bearing group and energy dissipation subassembly, motor main part both ends are fixed with the locating ring, and floating bearing group is fixed in fixed base both ends, and floating bearing group includes the bearing ring and the inside of it and is equipped with a plurality of support ear strips, and support ear strip one end is in contact with the locating ring, and the bearing ring is fixed on the motor main part surface through the fixed ear. Energy dissipation subassembly includes the fixed ring seat and the motion ring, and the fixed ring seat is fixed on the fixed ear, and the inside is equipped with the electromagnetic coil, and the motion ring is fixed on one side of the locating ring, and the outer periphery is installed with permanent magnet core, and the permanent magnet core is movably sleeved in the electromagnetic coil. The structure realizes the flexible support of motor, and the dynamic regulation and control and dissipation of vibration energy are carried out through the electromagnetic limiting structure, improve the damping performance and system stability in the operation process of motor, have the characteristics such as adjustable, compact structure, quick response.

Description

Technical Field

[0001] This utility model relates to the field of servo drive technology, specifically to an adjustable shock-absorbing servo motor. Background Technology

[0002] Servo motors, as core components in precision transmission and control systems, are widely used in high-dynamic-response fields such as automated equipment, CNC machine tools, and robots. Under complex operating conditions such as high-speed operation or frequent start-stop cycles, servo motors are prone to axial or radial mechanical vibrations. Without effective buffering and suppression mechanisms, these vibrations can easily lead to system performance fluctuations, structural resonance, and even component fatigue failure. Therefore, vibration reduction technology in motor structures has become one of the key means to ensure their stable operation.

[0003] In existing technologies, common servo motor vibration reduction methods often employ flexible elastic support structures. For example, elastic rubber pads, corrugated metal sheets, or spring supports are placed between the motor housing and the mounting base. These structures absorb some of the vibration energy transmitted during operation through elastic deformation, thereby reducing system impact. However, these structures primarily act as buffers and have limited energy dissipation capabilities for continuous, periodic, or high-frequency, low-amplitude vibrations. Their vibration reduction effect is relatively passive, and they cannot adaptively adjust to different vibration states.

[0004] On the other hand, most servo motor structures currently lack active or semi-active vibration energy dissipation mechanisms, failing to effectively dissipate vibration kinetic energy and relying solely on the mechanical damping effect of the elastic elements themselves. During long-term operation, the elastic materials are prone to aging and fatigue, leading to a decrease in support stiffness and damping capacity, unstable vibration reduction performance, and affecting the overall reliability of the system.

[0005] In addition, some improved solutions attempt to introduce hydraulic damping elements or viscous dampers, but these have problems such as complex structure, high cost, slow response, and inconvenient maintenance, making them difficult to promote in the actual application of compact servo motor structures.

[0006] Therefore, how to further improve the motor's vibration damping performance, vibration energy dissipation capacity, and control flexibility during operation while maintaining the motor's compact structure and versatility is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0007] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0008] Therefore, the technical solution adopted by this utility model is: an adjustable shock-absorbing servo motor, comprising four parts: motor body, fixed base, floating bearing assembly and energy dissipation component. It has a compact structure, simple installation method, and is easy to integrate into various existing electronic control platforms.

[0009] In a preferred embodiment, the adjustable vibration-damping servo motor includes: a motor body, a fixed base, a floating bearing assembly, and an energy dissipation component. Symmetrically arranged positioning rings are fixedly sleeved at both ends of the motor body. The positioning rings are rigid sleeve structures used for axial positioning and vibration transmission of the motor. The floating bearing assembly is fixed to both ends of the fixed base. The floating bearing assembly includes two parallel bearing rings and several support lugs arranged inside each bearing ring. One end of each support lug abuts against the outer surface of the positioning ring, and the other end is fixedly connected to the bearing ring. The outer surface of the bearing ring is provided with fixing ears for fixing it to the surface of the motor body with screws, thus connecting the motor body to the floating support structure.

[0010] Specifically, this floating support assembly can achieve flexible floating support for the motor body under slight vibration. By using the elastic deformation of the support bar to buffer the impact, it can improve the smoothness of motor operation and reduce vibration transmission.

[0011] In a preferred embodiment, the energy dissipation component is further configured as follows: the fixed ring seat is fixedly installed on the surface of the fixed ear, and the moving ring is fixed to one side of the positioning ring; the fixed ring seat is a ring structure with an installation slot on the inner side for embedding an electromagnetic coil, and a permanent magnet core is fixedly connected to the outer periphery of the moving ring, and the permanent magnet core is movably sleeved on the inner side of the electromagnetic coil.

[0012] Specifically, when the motor is vibrating, the permanent magnet core slides back and forth with the positioning ring, generating magnetic resistance through electromagnetic coupling with the electromagnetic coil. This limits and dissipates energy from the vibrating components, effectively suppressing the vibration amplitude and improving the anti-disturbance stability of the motor system.

[0013] In a preferred embodiment, the floating bearing assembly and the energy dissipation assembly are further configured as two sets, symmetrically installed on both sides of the motor body, forming a composite vibration reduction system with left and right structural balance.

[0014] Specifically, the symmetrical arrangement structure ensures the consistency of the equivalent stiffness and response of the motor in three dimensions, thereby improving the dynamic balance of the system structure.

[0015] In a preferred embodiment, the support ring is further configured as follows: the support ring is an annular component surrounding the positioning ring; its inner side support strips are all arranged obliquely, with opposite inclination directions, forming an interlaced structure that abuts against the positioning ring.

[0016] Specifically, the structure can provide gradually elastic support in different directions, enabling the motor to have good buffering ability in multi-directional vibration, thereby improving stability under multi-frequency interference conditions.

[0017] In a preferred embodiment, the fixing ears are symmetrically arranged at both ends of the bearing ring to form an ear plate structure, which facilitates rapid assembly and stable positioning.

[0018] Specifically, the fixed ear connection method facilitates modular installation, effectively improving the convenience of equipment maintenance and structural stability.

[0019] In a preferred embodiment, the fixed ring seat and the moving ring are both coaxial annular structures and are fixedly connected to the bearing ring by a lug.

[0020] In a preferred embodiment, a sliding gap is provided between the electromagnetic coil and the permanent magnet core to ensure its sliding space in the axial direction.

[0021] In a preferred embodiment, the electromagnetic coil is further configured such that a current generator is connected to the electromagnetic coil, and the current generator is further connected to a power regulation module, which can adjust the current magnitude according to the motor's operating status.

[0022] Specifically, the structure enables dynamic control of electromagnetic forces, thereby providing corresponding limiting damping effects under different vibration levels and possessing adaptive adjustment advantages.

[0023] In summary, this utility model combines flexible support and electromagnetic limit control to achieve multiple functions of shock absorption and dynamic adjustment. It has a reasonable structure, fast response, and strong adaptability, making it particularly suitable for anti-vibration and noise reduction applications of servo motor systems under complex working conditions.

[0024] The beneficial effects achieved by this utility model are as follows:

[0025] 1. In this utility model, the motor body is flexibly supported by the bearing ring and the support ear strip in the floating bearing assembly, so that the motor can float slightly during operation, effectively buffering the vibration and impact generated during motor operation, and improving the vibration reduction performance and operation stability of the overall system.

[0026] 2. In this utility model, by setting an energy dissipation component containing an electromagnetic coil and a permanent magnet core, and combining it with an adjustable current control system, electromagnetic limiting and damping effects are achieved on relatively moving parts during vibration, thereby realizing dynamic consumption and adjustable suppression of vibration energy, and improving the vibration reduction effect control capability and adaptability of the motor structure. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0028] Figure 2 This is an exploded structural diagram of one embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the installation structure of a floating bearing assembly according to an embodiment of the present invention;

[0030] Figure 4This is a schematic diagram of the motor body and its surface positioning ring structure according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the electromagnetic coil and permanent magnet core structure of one embodiment of the present invention.

[0032] Figure label:

[0033] 100. Motor body; 110. Positioning ring; 200. Fixing base;

[0034] 300. Floating bearing assembly; 310. Bearing ring; 320. Supporting lug; 311. Fixed lug;

[0035] 400, Energy dissipation component; 410, Fixed ring seat; 420, Moving ring; 411, Electromagnetic coil; 421, Permanent magnet core. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0037] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0038] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an adjustable shock-absorbing servo motor.

[0039] Combination Figures 1-5 As shown, the present invention provides an adjustable shock-absorbing servo motor, including a motor body 100, a fixed base 200, a floating bearing assembly 300, and an energy dissipation component 400.

[0040] The motor body 100 is fixedly fitted with two symmetrically arranged positioning rings 110 for radial positioning. The motor body 100 is a conventional servo motor body, and the positioning rings 110 are ring-shaped structures that are tightly fitted to both ends of the motor body 100 to form a rigid connection interface.

[0041] The floating support assembly 300 is fixedly disposed at both ends of the fixed base 200 to provide a flexible support structure. Specifically, it includes two parallel support rings 310 and several support lugs 320 arranged inside each support ring 310. The support ring 310 is an annular structure surrounding the positioning ring 110, used to support the support lugs 320 and connect to the fixed lugs 311. Each support lug 320 is made of flexible material and is arranged obliquely, with one end abutting against the outer surface of the positioning ring 110, allowing for elastic deformation when the motor body 100 vibrates, absorbing some of the impact kinetic energy. The support lugs 320 inside the two support rings 310 are inclined in opposite directions and staggered, abutting against the positioning ring 110 to enhance floating stability.

[0042] Two fixing ears 311 are symmetrically arranged on the outer surface of the bearing ring 310. The fixing ears 311 are ear plate structures and are fixed to the outer surface of the motor body 100 by fasteners such as screws, so that the entire floating bearing assembly 300 is stably fixed to the motor body 100.

[0043] The energy dissipation component 400 is used to limit and dissipate energy from vibrations generated during motor operation, and specifically includes a fixed ring seat 410 and a moving ring 420. The fixed ring seat 410 is an annular structure with lugs on both sides, which can be screwed onto the surface of the fixed lug 311 to keep it fixed relative to the motor body 100. The moving ring 420 is a concentric annular structure, with a permanent magnet core 421 fixedly mounted on its outer circumference and fixedly positioned on one side of the positioning ring 110.

[0044] The inner side of the fixed ring seat 410 has a slot, into which an electromagnetic coil 411 is embedded. The electromagnetic coil 411 has a ring-shaped winding structure, which is sleeved on the outside of the permanent magnet core 421 and kept axially concentric with it. The permanent magnet core 421 is movably sleeved on the inner side of the electromagnetic coil 411 and can undergo slight axial displacement within the slot. When the motor body 100 vibrates, the positioning ring 110 drives the moving ring 420 and the permanent magnet core 421 to undergo slight reciprocating motion relative to the fixed ring seat 410. The permanent magnet core 421 slides back and forth within the electromagnetic coil 411 and generates a magnetic damping effect under electromagnetic action, thereby limiting and damping the vibration and dissipating kinetic energy.

[0045] An electromagnetic coil 411 is electrically connected to a current generator (not shown) at one end. An alternating current is applied to the generator via a controller, thereby causing the electromagnetic coil 411 to generate an adjustable magnetic force. The input end of the current generator is further connected to a power adjustment module, which can adjust the amplitude and frequency of the input current according to the vibration state of the motor body 100, thereby controlling the magnetic force intensity and adjusting the strength of the limit damping to achieve adaptive control of the vibration reduction effect.

[0046] In this invention, there are two sets of floating bearing assembly 300 and energy dissipation component 400, which are symmetrically arranged on both sides of the motor body 100 to ensure the structural balance and vibration damping uniformity of the motor vibration reduction system.

[0047] Through the above-mentioned structural design, this utility model adds an independent flexible support unit and an adjustable electromagnetic limit unit without changing the structure of the motor body. This can effectively alleviate the mechanical shock and vibration of the servo motor during high-speed or variable load operation, improve system stability, extend service life, and has good adjustability and versatility.

[0048] Working principle and usage process of this utility model:

[0049] This invention achieves suppression and dynamic vibration reduction of vibrations generated during motor operation by setting a floating bearing assembly and energy dissipation components on the outside of the motor body. Its principle includes the following core mechanisms:

[0050] Flexible floating support vibration reduction principle: The motor body 100 is sleeved and fixed in the floating support assembly 300 through two positioning rings 110. The bearing ring 310 in the floating support assembly and the support lug 320 form a flexible support structure. When the motor vibrates during operation, the support lug 320 produces a small amount of elastic deformation in its tilt direction, allowing the motor body to float within a local range, thereby buffering external forces.

[0051] Electromagnetic limiting dynamic energy dissipation principle: The energy dissipation component 400 consists of a fixed ring seat 410 and a moving ring 420. An electromagnetic coil 411 is installed in the fixed ring seat, and a permanent magnet core 421 is installed on the moving ring. When the motor vibrates and causes the permanent magnet core to move relative to the electromagnetic coil, the permanent magnet core slides back and forth within the electromagnetic coil. The electromagnetic coil generates magnetic force to dynamically limit the movement, thereby generating electromagnetic damping against the relative motion and realizing the function of electromagnetic energy dissipation of vibration kinetic energy.

[0052] Adjustable electromagnetic force: By connecting to an external current generator and working with a power adjustment module, the electromagnetic coil 411 can adjust the input current and thus control the electromagnetic limit strength, thereby achieving dynamic adjustment of the degree of motor vibration suppression.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustable vibration-damping servo motor, characterized in that, include: The motor body (100), fixed base (200), floating bearing assembly (300), and energy dissipation component (400) are provided. The motor body (100) is fixedly fitted with two symmetrically arranged positioning rings (110). The floating bearing assembly (300) is fixed to both ends of the fixed base (200). The floating bearing assembly (300) includes two parallel bearing rings (310) and several support strips (320) arranged inside the bearing rings (310). One end of the support strips (320) abuts against the surface of the positioning rings (110). The surface of the bearing rings (310) is provided with fixing ears (311). The energy dissipation component (400) is fixed to the surface of the motor body (100) via the fixing ear (311). The energy dissipation component (400) includes a fixed ring seat (410) and a moving ring (420). The fixed ring seat (410) is fixed to the surface of the fixing ear (311), and the moving ring (420) is fixed to one side of the positioning ring (110). The inner side of the fixed ring seat (410) is provided with a slot and an electromagnetic coil (411) is embedded therein. The outer periphery of the moving ring (420) is fixedly installed with a permanent magnet core (421), and the permanent magnet core (421) is movably sleeved on the inner side of the electromagnetic coil (411).

2. The adjustable vibration-damping servo motor according to claim 1, characterized in that, The number of floating bearing groups (300) and energy dissipation components (400) are both two sets, and they are symmetrically arranged on both sides of the motor body (100).

3. The adjustable vibration-damping servo motor according to claim 1, characterized in that, The bearing ring (310) is a ring structure and surrounds the positioning ring (110). The inner side support strips (320) of the two bearing rings (310) are arranged obliquely and in opposite directions. The inner side support strips (320) of the two bearing rings (310) abut against the surface of the positioning ring (110) in an intersecting direction.

4. The adjustable vibration-damping servo motor according to claim 1, characterized in that, The fixing ears (311) are located at the two symmetrical ends on the outer side of the bearing ring (310) and are fixed to the surface of the motor body (100).

5. The adjustable vibration-damping servo motor according to claim 1, characterized in that, The fixed ring seat (410) and the moving ring (420) are both annular and concentrically arranged. The fixed ring seat (410) has protrusions on both sides that are fixedly installed on the surface of the fixed ear (311).

6. The adjustable vibration-damping servo motor according to claim 1, characterized in that, A gap is provided between the inner side of the permanent magnet core (421) and the outer periphery of the electromagnetic coil (411) for the movement of the electromagnetic coil (411).

7. The adjustable vibration-damping servo motor according to claim 1, characterized in that, The electromagnetic coil (411) is electrically connected to a current generator at its end. By passing an alternating current through the electromagnetic coil (411), it generates magnetic force. The input end of the current generator is electrically connected to a power adjustment module.

Images