An adjustable air gap motor rotor support structure

Abstract

The utility model discloses a motor rotor support structure of adjustable air gap, it includes: rotor support seat, elastic support board, guide frame, limit sliding block, transmission sleeve, adjusting screw rod, hand wheel, transmission convex post, arc slide groove, adjusting disc, adjusting arm and push rod. Through the rotation adjusting screw rod, drive transmission sleeve axial movement, drive limit sliding block along the guide groove sliding and exert pressure to elastic support board, change rotor support seat and the relative position of stator, realize air gap regulation, simultaneously, transmission convex post along arc slide groove sliding, convert linear motion into rotary motion, drive adjusting disc rotation, drive adjusting arm synchronous action, further promote rotor support seat position change, complete accurate regulation. The present application can improve the efficiency and precision of air gap regulation, reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor rotor support structure with adjustable air gap. Background Technology

[0002] Because a uniform air gap between the rotor and stator is essential for efficient and stable operation of a motor, the design of the rotor support structure is crucial. However, existing motor rotor support structures often suffer from uneven air gaps due to manufacturing or assembly errors, affecting motor performance and lifespan. Adjusting the air gap typically requires disassembling some motor components and repositioning and fixing the support structure, a complex and time-consuming process. Currently, air gap adjustment usually relies on manual adjustment, which lacks precision and increases maintenance costs. Therefore, this invention provides an improved motor rotor support structure with an adjustable air gap. Utility Model Content

[0003] The purpose of this utility model is to provide an adjustable air gap motor rotor support structure, which solves the problems mentioned in the background art.

[0004] This utility model is implemented as follows: an adjustable air gap motor rotor support structure, specifically including: a rotor support base, the rotor support base being a disc-shaped structure with multiple mounting holes on its outer wall; a rotor shaft fixedly mounted on the top of the rotor support base; multiple elastic support plates provided at the bottom of the rotor support base; the two ends of the elastic support plates being fixedly mounted between the rotor support base and a base respectively; a guide frame fixedly mounted on the top of the base; a guide groove being provided inside the guide frame; a limit slider being slidably mounted in the guide groove; one end of the limit slider... A transmission sleeve is fixedly installed on the side; an adjusting screw is threadedly connected inside the transmission sleeve; a handwheel is fixedly installed at the top of the adjusting screw; a transmission protrusion is fixedly installed at the bottom of the transmission sleeve; the front end of the transmission protrusion has a hemispherical structure; the transmission protrusion is slidably installed inside an arc-shaped groove; the arc-shaped groove is formed on the outer wall of the adjusting disc; the adjusting disc is rotatably installed at the top center of the base; multiple adjusting arms are fixedly installed on the top of the adjusting disc; a push rod is hinged to the end of each adjusting arm; the other end of the push rod is hinged to the bottom of the rotor support.

[0005] In at least some embodiments, the elastic support plate has a through hole in the middle; a spring is embedded in the through hole; the two ends of the spring are respectively fixedly installed on the inner wall of the elastic support plate; a reinforcing rib is also fixedly installed on the outer wall of the elastic support plate; the two ends of the reinforcing rib are respectively fixedly installed between the rotor support seat and the base; the reinforcing rib is used to enhance the rigidity of the elastic support plate.

[0006] In at least some embodiments, the number of adjusting arms is three, and they are evenly distributed along the circumference of the adjusting disk; the length of the adjusting arms is adjustable, and each end of the adjusting arm is provided with a threaded section; the threaded section is connected to the adjusting disk and the push rod through a knob; the length of the adjusting arm is adjusted by rotating the knob.

[0007] In at least some embodiments, when the transmission protrusion slides along the arc-shaped groove, the curved structure of the arc-shaped groove converts the linear motion of the transmission protrusion into rotational motion, thereby driving the adjustment disk to rotate; the rotation of the adjustment disk will cause the adjustment arm to move synchronously; the movement of the adjustment arm will push the push rod to swing along the hinge point, and the swing of the push rod will further push the position of the rotor support to change.

[0008] In at least some embodiments, when the limiting slider slides along the guide groove, it applies pressure to the elastic support plate; the elastic support plate deforms after being subjected to force, and the degree of deformation is proportional to the sliding distance of the limiting slider; the deformation of the elastic support plate changes the relative position between the rotor support seat and the stator, thereby realizing the adjustment of the air gap.

[0009] This utility model provides an adjustable air gap motor rotor support structure, which has the following beneficial effects:

[0010] By operating the adjusting screw, the screw can drive the transmission sleeve to move axially. The movement of the transmission sleeve drives the limiting slider to slide along the guide groove. The sliding of the limiting slider applies pressure to the elastic support plate. The deformation of the elastic support plate can change the relative position between the rotor support and the stator, thereby achieving air gap adjustment. In addition, the movement of the transmission sleeve also drives the adjusting disc to rotate through the transmission protrusion and the arc-shaped slide groove. The rotation of the adjusting disc drives the adjusting arm to move synchronously. The movement of the adjusting arm further drives the position change of the rotor support, ultimately completing the precise adjustment of the air gap.

[0011] This support structure achieves automatic air gap adjustment through mechanical transmission, avoiding the problem of insufficient precision in traditional manual adjustment methods. It also reduces the workload of disassembly and reassembly, significantly improving the efficiency and accuracy of air gap adjustment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model, showing the arrangement of the rotor support base, elastic support plate, guide frame, adjusting screw and handwheel, and marking the positions of the main components.

[0013] Figure 2This is a partial enlarged view of the present invention, showing in detail the connection method of the transmission sleeve, transmission protrusion, arc-shaped slide groove and adjusting plate, as well as the movement trajectory of the transmission protrusion in the arc-shaped slide groove.

[0014] Figure 3 This is a top view of the present invention, which focuses on showing the connection relationship between the adjusting arm, the push rod and the rotor support base and their operating states during the adjustment process.

[0015] The attached figures are labeled as follows: 1. Rotor support base; 2. Elastic support plate; 3. Guide frame; 4. Adjusting screw; 5. Handwheel; 6. Transmission sleeve; 7. Transmission protrusion; 8. Arc-shaped slide groove; 9. Adjusting disc; 10. Adjusting arm; 11. Push rod; 12. Base. Detailed Implementation

[0016] This utility model provides an adjustable air gap motor rotor support structure, the specific implementation of which is described in conjunction with the attached diagram. Figure 1 To be continued Figure 3 Please provide a detailed explanation. For example... Figure 1 As shown, the support structure includes a rotor support base 1, an elastic support plate 2, a guide frame 3, an adjusting screw 4, a handwheel 5, a transmission sleeve 6, a transmission protrusion 7, an arc-shaped slide groove 8, an adjusting disc 9, an adjusting arm 10, a push rod 11, and a base 12. These components achieve precise adjustment of the air gap through specific connection relationships and positional arrangements.

[0017] The rotor support base 1 has a disc-shaped structure with multiple mounting holes on its outer wall for fixing the rotor shaft or other related components. The rotor shaft is fixedly mounted on the top of the rotor support base 1, while multiple elastic support plates 2 are provided at its bottom. The two ends of the elastic support plates 2 are respectively fixedly installed between the rotor support base 1 and the base 12, forming a stable support system. Figure 1 As shown, the elastic support plate 2 has a through hole in the middle, and a spring is embedded in the through hole. The two ends of the spring are fixedly installed on the inner wall of the elastic support plate 2 to enhance the elastic performance of the elastic support plate 2. In addition, a reinforcing rib is fixedly installed on the outer wall of the elastic support plate 2. The two ends of the reinforcing rib are fixedly installed between the rotor support seat 1 and the base 12 to improve the overall rigidity of the elastic support plate 2 and prevent it from deforming excessively under stress.

[0018] A guide frame 3 is fixedly installed on the top of the base 12. A guide groove is formed inside the guide frame 3, and a limit slider is slidably installed within the guide groove. A transmission sleeve 6 is fixedly installed on one side of the limit slider, and an adjusting screw 4 is threadedly connected inside the transmission sleeve 6. A handwheel 5 is fixedly installed at the top of the adjusting screw 4, allowing the operator to rotate the adjusting screw 4. A transmission protrusion 7 is fixedly installed at the bottom of the transmission sleeve 6. The front end of the transmission protrusion 7 is hemispherical, and the transmission protrusion 7 is slidably installed inside an arc-shaped groove 8. The arc-shaped groove 8 is formed on the outer wall of the adjusting disc 9, which is rotatably mounted at the top center of the base 12. Multiple adjusting arms 10 are fixedly installed on the top of the adjusting disc 9. There are three adjusting arms 10, evenly distributed along the circumference of the adjusting disc 9. A push rod 11 is hinged to the end of each adjusting arm 10, and the other end of the push rod 11 is hinged to the bottom of the rotor support 1.

[0019] like Figure 2 As shown, when the operator rotates handwheel 5, adjusting screw 4 rotates accordingly, driving transmission sleeve 6 to move axially via threaded transmission. The movement of transmission sleeve 6 pushes the limiting slider to slide horizontally along the guide groove, and the sliding of the limiting slider applies pressure to elastic support plate 2. Due to the elastic properties of elastic support plate 2, it deforms under pressure, and the degree of deformation is proportional to the sliding distance of the limiting slider. The deformation of elastic support plate 2 changes the relative position between rotor support seat 1 and stator, thereby achieving initial adjustment of the air gap.

[0020] At the same time, the movement of the transmission sleeve 6 will also cause the transmission protrusion 7 to slide along the arc-shaped groove 8. For example... Figure 2 As shown, the curved structure of the arc-shaped slide 8 converts the linear motion of the transmission protrusion 7 into rotational motion, thereby driving the adjustment disk 9 to rotate. The rotation of the adjustment disk 9 causes multiple adjustment arms 10 to move synchronously. The movement of the adjustment arms 10 further pushes the push rod 11 to swing along the hinge point. The swing of the push rod 11 causes the position of the rotor support 1 to change, ultimately completing the precise adjustment of the air gap. The length of the adjustment arm 10 can be adjusted by a knob, which is connected to the adjustment disk 9 and the push rod 11 through a threaded section, thereby realizing the adjustment of the length of the adjustment arm 10 to meet the needs of different application scenarios.

[0021] like Figure 3 As shown, the connection relationship between the adjusting arm 10, the push rod 11, and the rotor support 1, as well as their operational status during the adjustment process, are clearly demonstrated. When the adjusting disc 9 rotates, the synchronous movement of the adjusting arm 10 allows the push rod 11 to swing around the hinge point. The swing of the push rod 11 directly acts on the bottom of the rotor support 1, thereby changing its relative position with the stator. Through this mechanical transmission method, the operator only needs to rotate the handwheel 5 to achieve automatic adjustment of the air gap without disassembling or reassembling any components.

[0022] In the above specific embodiments, the connection relationships and positional arrangements between the various components have been carefully designed to ensure the stability and reliability of the entire support structure. For example, the elastic support plate 2 not only provides support but also allows for fine-tuning of the rotor support seat 1's position through its elastic properties; the cooperation between the transmission protrusion 7 and the arc-shaped slide groove 8 enables the conversion from linear motion to rotational motion, thereby driving the rotation of the adjusting disc 9. Furthermore, the adjustable length design of the adjusting arm 10 further enhances the flexibility of the support structure, allowing it to adapt to different motor models and usage requirements.

[0023] In practical applications, this adjustable air gap motor rotor support structure can be used for various types of motors, and it has significant advantages, especially in scenarios where frequent air gap adjustments are required. For example, during the maintenance of industrial motors, operators can quickly adjust the air gap by rotating handwheel 5, avoiding the problem of insufficient precision in traditional manual adjustment methods, while reducing the workload of disassembly and reassembly, and significantly improving the efficiency and accuracy of air gap adjustment.

[0024] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0025] During the maintenance of industrial motors, operators need to precisely adjust the air gap between the motor rotor and stator. First, the adjustable air gap motor rotor support structure of this invention is installed inside the motor, ensuring that the base 12 is firmly fixed to the motor housing, and that the top of the rotor support 1 is securely connected to the rotor shaft. At this time, the elastic support plate 2 is in its natural state, and the initial air gap between the rotor support 1 and the stator is the design value.

[0026] When uneven air gap is detected, the operator initiates the adjustment process by rotating handwheel 5. The rotation of handwheel 5 drives the adjusting screw 4 to rotate. Since the adjusting screw 4 is connected to the transmission sleeve 6 by a thread, the rotation of the adjusting screw 4 is converted into axial movement of the transmission sleeve 6. The axial movement of the transmission sleeve 6 pushes the limiting slider to slide horizontally along the guide groove within the guide frame 3. The sliding of the limiting slider applies pressure to the elastic support plate 2, causing it to deform. Because a spring is embedded in the middle of the elastic support plate 2, its deformation is proportional to the sliding distance of the limiting slider, thus initially changing the relative position between the rotor support seat 1 and the stator, achieving coarse adjustment of the air gap.

[0027] Simultaneously, the movement of the transmission sleeve 6 causes the transmission protrusion 7 at its bottom to slide along the arc-shaped groove 8. The curved structure of the arc-shaped groove 8 converts the linear motion of the transmission protrusion 7 into rotational motion, thereby driving the adjusting disc 9 to rotate. The rotation of the adjusting disc 9 causes multiple adjusting arms 10 to move synchronously, and the movement of the adjusting arms 10 further pushes the push rod 11 to swing along the hinge point. The swing of the push rod 11 directly acts on the bottom of the rotor support 1, causing its position to change precisely, ultimately completing the accurate adjustment of the air gap.

[0028] The length of the adjusting arm 10 can be adjusted via a knob. The knob is connected to the adjusting disc 9 and the push rod 11 via a threaded section. The operator can rotate the knob according to actual needs to change the effective length of the adjusting arm 10, thereby adapting to the air gap adjustment requirements of different motor models. In addition, there are three adjusting arms 10, which are evenly distributed along the circumference of the adjusting disc 9. This arrangement ensures that the rotor support 1 is subjected to uniform force during adjustment, avoiding structural deformation or adjustment errors caused by excessive local force.

[0029] During the aforementioned adjustment process, the elastic support plate 2 not only provides support but also allows for fine-tuning of the rotor support seat 1's position through its elastic properties. The reinforcing ribs on the outer wall of the elastic support plate 2 further enhance its rigidity, preventing excessive deformation under stress and thus ensuring the stability of the entire support structure. The cooperation between the transmission protrusion 7 and the arc-shaped sliding groove 8 enables the conversion from linear motion to rotational motion; this mechanical transmission method significantly improves the efficiency and accuracy of air gap adjustment.

[0030] Through the steps described above, the operator only needs to rotate handwheel 5 to automatically adjust the air gap without disassembling or reassembling any components. This design not only simplifies the operation process but also avoids the lack of precision in traditional manual adjustment methods, significantly improving the efficiency and reliability of air gap adjustment. Furthermore, this support structure is suitable for various types of motors, and it has significant advantages, especially in scenarios requiring frequent air gap adjustments.

[0031] All content not described in detail in this specification is prior art known to those skilled in the art, and the model parameters of each component are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are prior art and are therefore not shown in the figures, nor will they be described further here.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable air gap motor rotor support structure, comprising: A rotor support base (1) is a disc-shaped structure. A rotor shaft is fixedly installed on the top of the rotor support base (1). Multiple elastic support plates (2) are provided at the bottom of the rotor support base (1). The two ends of the elastic support plates (2) are fixedly installed between the rotor support base (1) and the base (12). A guide frame (3) is fixedly installed on the top of the base (12). A guide groove is provided inside the guide frame (3). A limit slider is slidably installed in the guide groove. A transmission sleeve (6) is fixedly installed on one side of the limit slider. An adjusting screw (4) is threadedly connected inside the transmission sleeve (6). A handwheel (5) is fixedly installed at the top of the adjusting screw (4); characterized in that a transmission protrusion (7) is fixedly installed at the bottom of the transmission sleeve (6); the front end of the transmission protrusion (7) is hemispherical; the transmission protrusion (7) is slidably installed inside the arc-shaped slide groove (8); the arc-shaped slide groove (8) is opened on the outer wall of the adjusting plate (9); the adjusting plate (9) is rotatably installed at the top center of the base (12); a plurality of adjusting arms (10) are fixedly installed at the top of the adjusting plate (9); a push rod (11) is hinged to the end of the adjusting arm (10); the other end of the push rod (11) is hinged to the bottom of the rotor support seat (1).

2. The adjustable air gap motor rotor support structure according to claim 1, characterized in that, The elastic support plate (2) has a through hole in the middle; a spring is embedded in the through hole; the two ends of the spring are respectively fixedly installed on the inner wall of the elastic support plate (2); a reinforcing rib is also fixedly installed on the outer wall of the elastic support plate (2); the two ends of the reinforcing rib are respectively fixedly installed between the rotor support seat (1) and the base (12).

3. The adjustable air gap motor rotor support structure according to claim 1, characterized in that, The number of the adjusting arms (10) is three; the adjusting arms (10) are evenly distributed along the circumference of the adjusting disk (9); the two ends of the adjusting arms (10) are respectively provided with threaded sections; the threaded sections are connected to the adjusting disk (9) and the push rod (11) through a knob.

4. The adjustable air gap motor rotor support structure according to claim 1, characterized in that, When the transmission protrusion (7) slides along the arc-shaped slide groove (8), the arc-shaped slide groove (8) uses its own curved structure to convert the linear motion of the transmission protrusion (7) into rotational motion; the rotation of the adjustment disk (9) drives the adjustment arm (10) to move synchronously; the movement of the adjustment arm (10) pushes the push rod (11) to swing along the hinge point.

5. The adjustable air gap motor rotor support structure according to claim 1, characterized in that, When the limiting slider slides along the guide groove, the limiting slider applies pressure to the elastic support plate (2); the elastic support plate (2) deforms after being subjected to force; the deformation of the elastic support plate (2) changes the relative position between the rotor support seat (1) and the stator.

6. The adjustable air gap motor rotor support structure according to claim 3, characterized in that, The length of the adjusting arm (10) is adjusted by rotating the knob.

7. The adjustable air gap motor rotor support structure according to claim 1, characterized in that, The rotor support (1) has multiple mounting holes on its outer wall.

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