Damping base support device based on a three-phase motor

Abstract

The utility model discloses a shock absorbing base support equipment based on three -phase motor belongs to three -phase motor support technical field, including upper bottom plate, bottom plate and damping mechanism, and damping mechanism includes connecting rod three, the support frame no.

Description

Technical Field

[0001] This utility model relates to the field of three-phase motor support technology, and in particular to a shock-absorbing base support device based on a three-phase motor. Background Technology

[0002] Three-phase asynchronous motors are widely used core power sources in industrial production. During operation, they inevitably generate continuous mechanical vibrations due to factors such as rotor imbalance, electromagnetic effects, and load changes. These vibrations not only cause noise pollution but also reduce the service life and working accuracy of the motor itself and related equipment.

[0003] To effectively suppress this vibration, existing technologies employ the method of adding a vibration damping device between the motor and the mounting base, such as a vibration damping pad made of polymer material or a metal spring vibration damper. These devices mainly utilize the elastic deformation of the material itself to absorb vibration energy, and their structural characteristics make them effective in suppressing vertical vibration of the motor.

[0004] However, motor vibration is a complex vibration, which includes not only the vertical component but also a horizontal lateral component with significant energy. Traditional damping pads or spring structures are ineffective in dealing with this lateral vibration due to the lack of a dedicated lateral force absorption and dissipation mechanism. Most of the lateral vibration energy is still transferred to the supporting foundation, making it impossible to achieve comprehensive vibration protection.

[0005] Therefore, this utility model proposes a shock-absorbing base support device based on a three-phase motor to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of poor effect on suppressing lateral vibration of motor and limited overall shock absorption effect of existing three-phase motor-based shock-absorbing base support devices, this utility model aims to provide a three-phase motor-based shock-absorbing base support device with improved structure that can effectively solve the above problems.

[0007] This utility model provides a shock-absorbing base support device based on a three-phase motor, including: an upper base plate, a lower base plate, and a shock-absorbing mechanism; as well as a connecting rod three, a large damper, a support frame one, a connecting rod one, a rotating shaft one, a slider one, and a middle damper.

[0008] The connecting rod three has a sliding groove.

[0009] Furthermore, the upper base plate is internally elastically connected to the connecting rod three via a large damper, the support frame one is fixedly connected to the bottom of the upper base plate, the connecting rod one is hinged to the support frame one via a rotating shaft one, the slider one is fixed to the lower end of the connecting rod one and slidably disposed in the groove one of the connecting rod three, one end of the middle damper is connected to the slider one, and the other end is connected to the connecting rod three.

[0010] Preferably, the shock-absorbing base support device based on a three-phase motor further includes a buffer mechanism fixedly connected to the top of the upper base plate. The buffer mechanism includes a top plate, a small damper, and a limiting block. The top plate is elastically supported on the upper base plate by the small damper, and the limiting block is fixed to the upper base plate around the top plate to limit the position of the top plate.

[0011] Preferably, the buffer mechanism further includes an upper connecting plate, a spring, and a lower connecting plate. The upper connecting plate is fixed to the side wall of the top plate, and the lower connecting plate is connected to the upper bottom plate through the spring. An adjustment assembly consisting of a bolt and a nut passes through the upper connecting plate and the lower connecting plate to adjust the height of the top plate.

[0012] Preferably, a small washer is provided between the small damper and the upper base plate.

[0013] Preferably, a large washer is laid between the large damper and the upper base plate.

[0014] Preferably, the shock absorption mechanism further includes a second connecting rod, which is hinged to the first connecting rod via a second rotating shaft.

[0015] Preferably, the shock absorption mechanism further includes a second support rod fixed to the lower base plate, and the second connecting rod is hinged to the second support rod via a third rotating shaft.

[0016] Preferably, the connecting rod three has an internal cavity, and the large damper is disposed in the cavity and connected to the bottom of the cavity.

[0017] This utility model has the following beneficial effects: 1. This utility model, by setting up a lateral damping mechanism precisely composed of components such as a support frame, multi-stage connecting rods, sliders, and intermediate dampers, cleverly transforms lateral vibrations that are difficult to absorb directly into linear sliding of the slider within the groove, which is then absorbed by the intermediate damper. This solves the problem that existing damping devices only focus on vertical damping and are not effective in suppressing lateral composite vibrations caused by factors such as rotor imbalance in motors. It achieves precise and efficient absorption of lateral vibrations, significantly improving the overall operational stability and smoothness of the equipment.

[0018] 2. This utility model constructs a dual damping system by setting a buffer mechanism consisting of a spring and a small damper at the top of the upper base plate, and a damping mechanism consisting of a large damper and a lateral damping mechanism between the upper and lower base plates. This solves the problem that existing single damping structures cannot simultaneously absorb high-frequency impact vibration and low-frequency steady-state vibration, resulting in a narrow damping bandwidth and limited overall effect. It achieves the technical effect of comprehensively suppressing the compound vibration of the motor in a layered and wide-bandwidth manner, making the damping more thorough and the protection of the equipment more comprehensive. Attached Figure Description

[0019] Figure 1 This is a perspective view of the shock-absorbing base support device based on a three-phase motor proposed in this utility model; Figure 2 This is a front view of the shock-absorbing base support device based on a three-phase motor proposed in this utility model; Figure 3 This is a cross-sectional view of the buffer mechanism in the shock-absorbing base support device based on a three-phase motor proposed in this utility model; Figure 4 This is a cross-sectional view of the shock-absorbing mechanism in the shock-absorbing base support device based on a three-phase motor proposed in this utility model.

[0020] Legend: 1. Upper base plate; 2. Lower base plate; 3. Buffer mechanism; 31. Top plate; 32. Small damper; 33. Small washer; 34. Limiting block; 35. Bolt 1; 36. Upper connecting plate; 37. Spring 1; 38. Lower connecting plate; 39. Nut 1; 4. Shock absorption mechanism; 41. Support frame 1; 42. Rotating shaft 1; 43. Connecting rod 1; 44. Rotating shaft 2; 45. Connecting rod 2; 46. Rotating shaft 3; 47. Support rod 2; 48. Connecting rod 3; 49. Middle damper; 410. Slide groove 1; 411. Large damper; 412. Large washer; 413. Slider 1. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0022] Example: Please refer to Figures 1 to 4This utility model provides a shock-absorbing base support device based on a three-phase motor, which aims to solve the technical problem that existing motor shock-absorbing devices have poor lateral vibration suppression effect.

[0023] like Figure 1 and Figure 2 As shown, the vibration damping base support device based on a three-phase motor includes a lower base plate 2 and an upper base plate 1 positioned above the lower base plate 2. The upper base plate 1 and the lower base plate 2 are connected by a vibration damping mechanism 4. A buffer mechanism 3 is also fixedly connected to the top of the upper base plate 1. The entire device works in concert with the buffer mechanism 3 and the vibration damping mechanism 4 to suppress the vibration generated by the motor in both longitudinal and lateral directions. The lower base plate 2 serves as the mounting base for the entire device, providing stable support. The upper base plate 1 supports the motor and transmits vibration to the vibration damping system below. The buffer mechanism 3 provides initial buffering and lateral limiting of the motor's vibration. The vibration damping mechanism 4 deeply absorbs the initially buffered vibration, especially specifically eliminating lateral vibration. The vibration damping mechanism 4 includes a connecting rod 48, which has a cavity inside. The upper base plate 1... The large damper 411, which is set in the cavity of the connecting rod 48, is elastically connected to the connecting rod 48. A groove is opened at the top of the connecting rod 48, and the lower part of the upper base plate 1 slides in cooperation with the groove. A groove 410 is also opened on the connecting rod 48. The damping mechanism 4 also includes a support frame 41 fixedly connected to the bottom of the upper base plate 1. The support frame 41 is hinged to one end of the connecting rod 43 through a rotating shaft 42. A slider 413 is fixedly connected to the other end of the connecting rod 43. The slider 413 is slidably set in the groove 410. The slider 413 is connected to the connecting rod 48 through a middle damper 49. One end of the middle damper 49 is connected to the slider 413, and the other end is connected to the connecting rod 48. Through this linkage structure, the lateral vibration is converted into the sliding of the slider 413 and absorbed by the middle damper 49.

[0024] Please refer to Figure 2 and Figure 4The damping mechanism 4 also includes a second connecting rod 45, a second rotating shaft 44, a third rotating shaft 46, and a second support rod 47. The first connecting rod 43 is hinged to the second connecting rod 45 via the second rotating shaft 44, realizing the transmission of motion. The second support rod 47 is fixed above the lower base plate 2, providing a stable support base for the entire linkage system. The second connecting rod 45 is hinged to the second support rod 47 via the third rotating shaft 46, thus forming a complete linkage transmission mechanism capable of amplifying and converting the small lateral displacement of the upper base plate 1. This multi-link hinge structure ensures that each link can rotate flexibly when lateral vibration occurs, and accurately transmits the motion to the lower end of the first connecting rod 43, causing the slider 413 to slide, which serves to reduce lateral vibration. The energy conversion of vibration provides a precise motion path. At the same time, the support frame 41, which is fixedly connected to the bottom of the upper base plate 1, is hinged to the connecting rod 43 through the rotating shaft 42. As the input end of the entire lateral damping linkage mechanism, it directly receives the lateral vibration from the upper base plate 1. When the upper base plate 1 sways laterally, the support frame 41 will push the connecting rod 43 to move. In the assembled state, the entire linkage mechanism, together with the slider 413, the slide groove 410, and the middle damper 49, works together to form a complete lateral vibration energy absorption path. This linkage-slider-damper cooperative structure ensures that the lateral vibration can be efficiently converted into the damping dissipation energy of the middle damper 49, thereby achieving excellent lateral damping effect.

[0025] As a preferred embodiment, in order to initially buffer the vibration of the motor and limit horizontal swaying, please refer to... Figure 1 and Figure 3 A buffer mechanism 3 is fixedly connected to the top of the upper base plate 1. The buffer mechanism 3 includes a top plate 31, small dampers 32 and limiting blocks 34. The motor can be fixed on the top plate 31. The top plate 31 is elastically supported on the upper base plate 1 by multiple small dampers 32. Multiple limiting blocks 34 are fixed around the top plate 31 on the top surface of the upper base plate 1. The horizontal displacement of the top plate 31 is limited by the cooperation between the limiting blocks 34 and the side wall of the top plate 31.

[0026] As a preferred embodiment, please refer to the following for easy adjustment of the height of the supporting motor: Figure 3 The buffer mechanism 3 also includes an upper connecting plate 36 fixed to the side wall of the top plate 31, a lower connecting plate 38 connected to the upper bottom plate 1 by a spring 37, and an adjustment assembly consisting of a bolt 35 and a nut 39. The bolt 35 passes through the upper connecting plate 36 and the lower connecting plate 38 in sequence and is bolted to the nut 39 at the bottom of the lower connecting plate 38. The preload of the spring 37 can be adjusted by rotating the nut 39, thereby adjusting the height of the top plate 31.

[0027] As a preferred embodiment, to improve the cushioning effect and protect the contact surface, please refer to... Figure 3A small washer 33 is provided between the small damper 32 and the upper base plate 1. The small washer 33 can increase the contact area and disperse the pressure.

[0028] As a preferred implementation method, to further improve the buffering effect of longitudinal shock absorption, please refer to... Figure 4 A large washer 412 is laid between the large damper 411 and the upper base plate 1. The large washer 412 also serves to distribute pressure and protect the contact surface.

[0029] As a preferred embodiment, to ensure the integrity and stability of the internal kinematic chain of the shock absorption mechanism 4, please refer to... Figure 4 The connecting rod 3 48 has an internal cavity in which the large damper 411 is housed and connected to the bottom of the cavity, providing a stable installation space and support for longitudinal damping.

[0030] Working principle: When the three-phase motor fixed on the top plate 31 starts and runs, the motor will generate a composite vibration containing longitudinal and lateral components. The vibration is first transmitted to the buffer mechanism 3, which causes the top plate 31 to move vertically. This movement is absorbed and buffered by the spring 37 and the small damper 32. The spring 37 mainly plays the role of isolating the vibration, while the multiple small dampers 32 convert the kinetic energy of the vibration into heat energy and dissipate it, thus completing the initial damping of longitudinal vibration. At the same time, the lateral sway of the motor will drive the top plate 31 to have a tendency to move horizontally. However, since the multiple limiting blocks 34 fixed on the upper base plate 1 surround the top plate 31, the horizontal movement of the top plate 31 is restricted, thus achieving the initial restriction of lateral vibration. The residual vibration, after initial processing by the buffer mechanism 3, continues to be transmitted to the upper base plate 1 and further processed by the damping mechanism 4. The residual longitudinal vibration causes the upper base plate 1 to continue moving in the vertical direction. Since the upper base plate 1 is supported by a large damper 411 located inside the cavity of the connecting rod 48, the vertical movement of the upper base plate 1 will compress or stretch the large damper 411. The large damper 411, through its own damping characteristics, further absorbs and dissipates this residual longitudinal vibration energy, thereby achieving deep damping of the longitudinal vibration. At the same time, the residual lateral vibration causes the upper base plate 1 to produce a small horizontal displacement. This displacement will drive the support frame 41 fixed at the bottom to move synchronously. Since the support frame 41 is hinged to the connecting rod 43 through the rotating shaft 42, the connecting rod 43... The connecting rod 43 is then hinged to the connecting rod 45 via the rotating shaft 44. The connecting rod 45 is in turn hinged to the support rod 47 fixed on the lower base plate 2 via the rotating shaft 46. This entire precision linkage mechanism converts the slight horizontal translation of the upper base plate 1 into a significant linear displacement of the lower end of the connecting rod 43. The slider 413, which is fixedly connected to the lower end of the connecting rod 43, slides within the groove 410 of the connecting rod 48. This sliding action directly drives the intermediate damper 49 connected to the slider 413 to work. The intermediate damper 49 effectively absorbs the kinetic energy of the slider 413, ultimately dissipating the energy of the lateral vibration completely. Through the synergistic effect of this connecting rod-slider-damper, this invention solves the problem of effectively absorbing lateral vibration in the prior art.

Claims

1. A shock-absorbing base support device based on a three-phase motor, comprising an upper base plate (1), a lower base plate (2), and a shock-absorbing mechanism (4) disposed between the upper base plate (1) and the lower base plate (2). Its features are, The damping mechanism (4) includes: a connecting rod three (48), a support frame one (41), a connecting rod one (43), a slider one (413), and a middle damper (49). The connecting rod three (48) has a sliding groove one (410). The upper base plate (1) is elastically connected to the inside of the connecting rod three (48) through a large damper (411). The support frame one (41) is fixedly connected to the bottom of the upper base plate (1). The connecting rod one (43) is hinged to the support frame one (41) through a rotating shaft one (42). The slider one (413) is fixed to the lower end of the connecting rod one (43) and is slidably set in the sliding groove one (410). One end of the middle damper (49) is connected to the slider one (413), and the other end is connected to the connecting rod three (48).

2. The vibration damping base support device based on a three-phase motor according to claim 1, characterized in that, It also includes a buffer mechanism (3) fixedly connected to the top of the upper base plate (1). The buffer mechanism (3) includes a top plate (31), a small damper (32) and a limiting block (34). The top plate (31) is elastically supported on the upper base plate (1) by the small damper (32), and the limiting block (34) is fixed to the upper base plate (1) around the top plate (31).

3. The vibration damping base support device based on a three-phase motor according to claim 2, characterized in that, The buffer mechanism (3) further includes an upper connecting plate (36), a spring (37), and a lower connecting plate (38); the upper connecting plate (36) is fixed to the side wall of the top plate (31), the lower connecting plate (38) is connected to the upper bottom plate (1) through the spring (37), and an adjustment assembly consisting of a bolt (35) and a nut (39) passes through the upper connecting plate (36) and the lower connecting plate (38).

4. The vibration damping base support device based on a three-phase motor according to claim 2, characterized in that, A small washer (33) is provided between the small damper (32) and the upper base plate (1).

5. The vibration damping base support device based on a three-phase motor according to claim 1, characterized in that, A large washer (412) is laid between the large damper (411) and the upper base plate (1).

6. The vibration damping base support device based on a three-phase motor according to claim 1, characterized in that, The shock absorption mechanism (4) also includes a second connecting rod (45), which is hinged to the first connecting rod (43) via a second rotating shaft (44).

7. The vibration damping base support device based on a three-phase motor according to claim 6, characterized in that, The shock absorption mechanism (4) also includes a second support rod (47), which is fixed on the lower base plate (2). The second connecting rod (45) is hinged to the second support rod (47) through a third rotating shaft (46).

8. The vibration damping base support device based on a three-phase motor according to claim 1, characterized in that, The connecting rod three (48) has an internal cavity, and the large damper (411) is disposed in the cavity and connected to the bottom of the cavity.

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