A flexible variable moment electric drive machine
By using a non-axial flexible variable torque electric drive design, high-strength steel wire ropes and key connections are used to achieve the same-direction non-axial transmission of torque, which solves the problem of low torque and output power of traditional motors and improves the output power of the motor and the stability of the system.
Patent Information
- Application Number
- CN202521910975.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-09-05
AI Technical Summary
Traditional motors have low torque and output power, mainly because the distance from the torque application point on the motor shaft to the shaft center is small, resulting in low torque transmission efficiency.
The design adopts a non-axial flexible variable torque electric drive. The first flange is rotated by the motor spindle. The first and second flanges are connected by a high-strength steel wire rope to achieve the same-direction non-axial transmission of torque. The torque transmission is achieved by key connection. The output shaft is set parallel to the motor spindle to amplify the torque output.
It increases the motor's output power, enhances the system's stability and transmission efficiency, adapts to dynamic deviations caused by changes in operating conditions, and reduces assembly difficulty.
Smart Images
Figure CN224555348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor technology, specifically to an off-axis flexible variable torque electric drive. Background Technology
[0002] Traditional motors consist of a rotor and a stator. The rotor can rotate relative to the stator. When the motor is powered on, the rotor runs and directly outputs torque. Because the distance from the torque application point of the motor shaft to the shaft center is small, traditional motors generally have the problem of low motor torque and output power. Utility Model Content
[0003] To address the common technical problems of low torque and output power in traditional motors, this invention provides a non-axial flexible variable torque electric drive that can transmit the motor's output torque in the same direction but on opposite axes to the output shaft and amplify the torque output, thereby increasing the motor's output power.
[0004] This utility model provides an off-axis flexible variable torque electric drive, including a motor, an output shaft, a first flange, a second flange, a mounting base, and multiple high-strength steel wire ropes. The output shaft is arranged parallel to the main shaft of the motor. The first flange is coaxially fixedly disposed at the end of the main shaft, and the second flange is coaxially fixedly disposed at the end of the output shaft near the motor. The other end of the output shaft passes through the mounting base and is rotatably connected to the mounting base. The first flange and the second flange are arranged parallel to each other, and the diameter of the first flange is smaller than the diameter of the second flange. The multiple high-strength steel wire ropes are evenly disposed between the first flange and the second flange along the radial direction of the first flange, and the high-strength steel wire ropes are inclined along the rotation direction of the main shaft. The two ends of the high-strength steel wire ropes are respectively fixedly connected to the outer edge of the first flange and the outer edge of the second flange.
[0005] In a preferred embodiment of the off-axis flexible variable torque electric drive provided by this utility model, a plurality of first fixing members are provided on the side of the first flange near the second flange. The plurality of first fixing members are evenly arranged along the circumference of the first flange on the outer edge of the first flange. A plurality of second fixing members are provided on the side of the second flange near the first flange, each corresponding to one of the first fixing members. The plurality of second fixing members are evenly arranged along the circumference of the second flange on the outer edge of the second flange. The two ends of the high-strength steel wire rope are respectively fixedly connected to the first fixing members and the second fixing members corresponding to the first fixing members.
[0006] In a preferred embodiment of the off-axis flexible variable torque electric drive provided by this utility model, there are at least four first fixing members, and at least four first fixing members are evenly arranged along the circumference of the first flange on the outer edge of the first flange. There are at least four second fixing members, and at least four second fixing members are evenly arranged along the circumference of the second flange on the outer edge of the second flange. The second fixing members are arranged in a one-to-one correspondence with the first fixing members.
[0007] In a preferred embodiment of the off-axis flexible variable torque electric drive provided by this utility model, the main shaft of the motor is connected to the first flange by a key to achieve torque transmission, and the output shaft is connected to the second flange by a key to achieve torque transmission.
[0008] In a preferred embodiment of the off-axis flexible variable torque electric drive provided by this utility model, the size of the first flange is the same as the size of the rotor of the motor.
[0009] In a preferred embodiment of the off-axis flexible variable torque electric drive provided by this utility model, the mounting base is made of cast steel.
[0010] In a preferred embodiment of the off-axis flexible variable torque electric drive provided by this utility model, the upper end of the mounting base is provided with a bearing, the outer ring of the bearing is detachably connected to the mounting base, the output shaft passes through the bearing, and the outer wall of the output shaft is fixedly connected to the inner ring of the bearing.
[0011] Compared with existing technologies, the off-axis flexible variable torque electric drive provided by this utility model has the following beneficial effects: the motor's main shaft drives the first flange to rotate, the first flange drives the second flange to rotate via a high-strength steel wire rope, and the second flange in turn drives the output shaft to rotate. The output shaft is parallel to the motor's main shaft, and the diameter of the first flange is smaller than that of the second flange. This design can transmit the torque output by the motor in the same direction but off-axis to the output shaft and realize torque amplification, thereby improving the output power of the motor. At the same time, the use of high-strength steel wire rope to flexibly connect the first flange and the second flange can not only ensure good transmission efficiency between the first flange and the second flange, but also adapt to dynamic deviations caused by changes in operating conditions, thus enhancing system stability. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1This is a schematic diagram of the structure of the off-axis flexible variable torque electric drive provided by this utility model; Figure 2 yes Figure 1 The cross-sectional view of the off-axis flexible variable torque electric drive shown is along AA. Figure 3 yes Figure 1 The diagram shows the structure of the first flange near the second flange.
[0013] In the picture: 11. Motor; 111. Main shaft; 12. Output shaft; 13. First flange; 131. First fastener; 14. Second flange; 141. Second fastener; 15. Mounting base; 16. High-strength steel wire rope. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0015] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 This is a schematic diagram of the structure of the off-axis flexible variable torque electric drive provided by this utility model; Figure 2 yes Figure 1 The cross-sectional view of the off-axis flexible variable torque electric drive shown is along AA. Figure 3 yes Figure 1The diagram shows the structure of the first flange near the second flange. The off-axis flexible variable torque electric drive includes a motor 11, an output shaft 12, a first flange 13, a second flange 14, a mounting base 15, and multiple high-strength steel wire ropes 16. The output shaft 12 is parallel to the main shaft 111 of the motor 11. The first flange 13 is coaxially fixed at the end of the main shaft 111 of the motor 11. The second flange 14 is coaxially fixed at the end of the output shaft 12 near the motor 11. The other end of the output shaft 14 passes through the mounting base 15 and is rotatably connected to the mounting base 15. The first flange 13 and the second flange 14 are arranged in parallel, and the diameter of the first flange 13 is smaller than the diameter of the second flange 14; a plurality of high-strength steel wire ropes 16 are evenly arranged between the first flange 13 and the second flange 14 along the radial direction of the first flange 13, and the high-strength steel wire ropes 16 are inclined along the rotation direction of the main shaft 111 of the motor 11, and the two ends of the high-strength steel wire ropes 16 are respectively fixedly connected to the outer edge of the first flange 13 and the outer edge of the second flange 14.
[0016] The present invention discloses an off-axis flexible variable torque electric drive. The main shaft 111 of the motor 11 drives the first flange 13 to rotate. The first flange 13 drives the second flange 14 to rotate via the high-strength steel wire rope 16. The second flange 14 then drives the output shaft 12 to rotate. The output shaft 12 is parallel to the main shaft 111 of the motor 11. The diameter of the first flange 13 is smaller than the diameter of the second flange 14. This design allows the torque output by the motor 11 to be transmitted in the same direction but off-axis to the output shaft 12, achieving torque amplification and output, thereby increasing the output power of the motor 11. Furthermore, torque transmission can be achieved simply by aligning the output shaft 12 parallel to the main shaft 111 of the motor 11, greatly reducing assembly difficulty. Simultaneously, the high-strength steel wire rope 16 flexibly connects the first flange 13 and the second flange 14, ensuring good transmission efficiency between them and adapting to dynamic deviations caused by changes in operating conditions, thus enhancing system stability.
[0017] Optionally, the first flange 13 is provided with a plurality of first fasteners 131 on the side near the second flange 14. The plurality of first fasteners 131 are evenly arranged along the circumference of the first flange 13 on the outer edge of the first flange 13. The second flange 14 is provided with a plurality of second fasteners 141 respectively corresponding to the first fasteners 131 on the side near the first flange 13. The plurality of second fasteners 141 are evenly arranged along the circumference of the second flange 14 on the outer edge of the second flange 14. The two ends of the high-strength steel wire rope 16 are respectively fixedly connected to the first fasteners 131 and the second fasteners 141 corresponding to the first fasteners 131.
[0018] Optionally, there are at least four first fasteners 131, which are evenly distributed along the circumference of the first flange 13 on its outer edge. There are also at least four second fasteners 141, which are evenly distributed along the circumference of the second flange 14 on its outer edge. The second fasteners 141 correspond one-to-one with the first fasteners 131. This design ensures good torque transmission between the first flange 13 and the second flange 14, guaranteeing uniform torque transmission.
[0019] Optionally, the main shaft 111 of the motor 11 is connected to the first flange 13 by a key to achieve torque transmission, and the output shaft 12 is connected to the second flange 14 by a key to achieve torque transmission; the key connection is suitable for bidirectional torque transmission, and this design can ensure the stability of torque transmission.
[0020] Optionally, the dimensions of the first flange 13 are the same as the dimensions of the rotor of the motor 11.
[0021] Optionally, the mounting base 15 is made of cast steel, which can improve the overall structural strength of the mounting base 15.
[0022] Optionally, the upper end of the mounting base 15 is provided with a bearing, the outer ring of the bearing is detachably connected to the mounting base 15, the output shaft 12 passes through the bearing, and the outer wall of the output shaft 12 is fixedly connected to the inner ring of the bearing; by setting the bearing, the friction between the output shaft 12 and the mounting base 15 when the output shaft 12 rotates can be effectively reduced, ensuring the transmission efficiency and service life of the off-axis flexible variable torque electric drive.
[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A non-axial flexible variable torque electric drive, characterized in that, The device includes a motor, an output shaft, a first flange, a second flange, a mounting base, and multiple high-strength steel wire ropes. The output shaft is arranged parallel to the main shaft of the motor. The first flange is coaxially fixed at one end of the main shaft, and the second flange is coaxially fixed at one end of the output shaft near the motor. The other end of the output shaft passes through the mounting base and is rotatably connected to it. The first flange and the second flange are arranged parallel to each other, and the diameter of the first flange is smaller than the diameter of the second flange. Multiple high-strength steel wire ropes are evenly arranged between the first flange and the second flange along the radial direction of the first flange, and the high-strength steel wire ropes are inclined along the rotation direction of the main shaft. The two ends of the high-strength steel wire ropes are respectively fixedly connected to the outer edge of the first flange and the outer edge of the second flange.
2. The off-axis flexible variable torque electric drive according to claim 1, characterized in that, The first flange has a plurality of first fasteners on the side near the second flange. The plurality of first fasteners are evenly arranged along the circumference of the first flange on its outer edge. The second flange has a plurality of second fasteners on the side near the first flange, each corresponding to one of the first fasteners. The plurality of second fasteners are evenly arranged along the circumference of the second flange on its outer edge. The two ends of the high-strength steel wire rope are respectively fixedly connected to the first fasteners and the second fasteners corresponding to the first fasteners.
3. The off-axis flexible variable torque electric drive according to claim 2, characterized in that, There are at least four first fasteners, which are evenly distributed along the circumference of the first flange on the outer edge of the first flange. There are at least four second fasteners, which are evenly distributed along the circumference of the second flange on the outer edge of the second flange, and the second fasteners correspond one-to-one with the first fasteners.
4. The off-axis flexible variable torque electric drive according to claim 1, characterized in that, The motor's main shaft is connected to the first flange via a key to transmit torque, and the output shaft is connected to the second flange via a key to transmit torque.
5. The off-axis flexible variable torque electric drive according to claim 1, characterized in that, The dimensions of the first flange are the same as the dimensions of the motor rotor.
6. The off-axis flexible variable torque electric drive according to claim 1, characterized in that, The mounting base is made of cast steel.
7. The off-axis flexible variable torque electric drive according to claim 1, characterized in that, The upper end of the mounting base is provided with a bearing, the outer ring of the bearing is detachably connected to the mounting base, the output shaft passes through the bearing, and the outer wall of the output shaft is fixedly connected to the inner ring of the bearing.