A redundant protection structure for preventing failure of special motors

Abstract

The present invention is applicable to the technical field of redundant protection of special motors, and provides a redundant protection structure for preventing failure of special motors, comprising a shell, a controller is fixedly connected to the outer side of the shell, a first shock absorbing mechanism is arranged inside the shell, a first transmission mechanism is arranged on one side of the first shock absorbing mechanism, a second shock absorbing mechanism is arranged on one side of the first transmission mechanism, and a second transmission mechanism is arranged on one side of the second shock absorbing mechanism. By providing a first shock absorbing and heat dissipation component and a second shock absorbing and heat dissipation component, the first spring can not only reduce the shock at both ends of the first main shaft, but also spray the compressed air inside the guide slider from the jet pipe to the inside of the first bearing and the second bearing for air cooling, thereby effectively preventing the first main shaft from vibrating and causing damage to the bearing and the inability of the two main shafts to dock, and achieving the effects of high shock absorption efficiency and high heat dissipation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of redundant protection of special motors, and more specifically, to a redundant protection structure for preventing failure of special motors. Background Art

[0002] Special motors are a type of motor designed for specific application scenarios. They usually have unique structures and working principles to meet specific performance requirements. Special motors may be used in mission-critical or life safety-related applications, such as medical equipment, aerospace, military equipment, etc. These occasions require motors to run continuously to ensure safety and mission continuity. Special motors are usually designed to have high reliability to ensure that they will not stop working under extreme environments or long-term operating conditions.

[0003] In order to improve the reliability of the system, special motors currently adopt a redundant design and use multiple backup lines for connection. This means that even if one motor line unit fails, other motor line units can take over the work to ensure that the system continues to operate and prevent special motor failure. However, when one of the motor mechanical units fails, it is impossible to change the motor line unit to keep the motor spindle rotating, which causes the spindle of the special motor to stop and no longer rotate. In key applications such as aerospace and medical equipment, the sudden stop of the spindle will bring safety risks and economic losses.

[0004] Therefore, it is necessary to design a redundant protection structure to prevent special motor failure to improve the above-mentioned technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a redundant protection structure for preventing failure of special motors.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a redundant protection structure for preventing failure of special motors, comprising a shell, a controller fixedly connected to the outer side of the shell, a first shock absorbing mechanism provided inside the shell, a first transmission mechanism provided on one side of the first shock absorbing mechanism, a second shock absorbing mechanism provided on one side of the first transmission mechanism, and a second transmission mechanism provided on one side of the second shock absorbing mechanism.

[0007] The present invention is further configured as follows: a control module and a detection module are provided inside the controller, and the control module is signal-connected with the detection module.

[0008] The present invention is further configured as follows: the first transmission mechanism includes a first stator core, the first stator core is fixedly connected to the inner side of the outer shell, the outer side of the first stator core is wound with a first stator coil, the inner side of the first stator core is provided with a first rotor core, the outer side of the first rotor core is wound with a first rotor coil, and the interior of the first rotor core is fixedly connected to a first main shaft.

[0009] The present invention is further configured as follows: the first shock absorbing mechanism includes a first positioning ring, the first positioning ring is fixedly connected to the inner side of the shell, the inner side of the first positioning ring is fixedly connected to a first bearing, and the inner side of the first positioning ring is also evenly provided with four first shock absorbing and heat dissipating components.

[0010] The present invention is further configured as follows: the second shock absorbing mechanism includes a second positioning ring, the second positioning ring is fixedly connected to the inner side of the outer shell, the interior of the second positioning ring is fixedly connected to a second bearing, and one side of the second positioning ring is evenly fixedly connected to four second shock absorbing and heat dissipating components.

[0011] By providing a second transmission mechanism, when the special motor is about to fail, the first main shaft and the second main shaft are automatically connected, so that the special motor can be driven again, effectively preventing the safety risks and economic losses caused by the sudden stop of the main shaft, and achieving the effect of preventing the special motor from failing. After the first stator coil is completely repaired, the first main shaft and the second main shaft are automatically separated, effectively preventing the first main shaft from driving the second main shaft to rotate and cutting the magnetic flux lines of the second stator coil, thereby affecting the rotation of the first main shaft, and achieving the effect of strong working stability of the special motor.

[0012] The present invention is further configured as follows: one end of the first main shaft is connected to the interior of the first bearing for rotation, and the other end of the first main shaft is connected to the interior of the second bearing for rotation.

[0013] The present invention is further configured as follows: the second transmission mechanism includes a sliding ring, the sliding ring is slidably connected to the inside of the shell, two electric push rods are provided on one side of the sliding ring, the electric push rods are fixedly connected to the shell, and the output ends of the electric push rods are fixedly connected to the sliding ring.

[0014] The present invention is further configured as follows: a second stator core is fixedly connected to the inside of the slip ring, a second stator coil is wound around the outside of the second stator core, a second rotor core is provided inside the second stator core, a second rotor coil is wound around the outside of the second rotor core, a second main shaft is fixedly connected to the inside of the second rotor core, and one end of the second main shaft is connected to the slip ring bearing.

[0015] The present invention is further configured as follows: a plurality of slots are evenly arranged at the other end of the second main shaft, a slide groove is arranged inside the first main shaft, a tooth avoidance groove is arranged on one side of the slide groove, a circular groove is arranged on one side of the tooth avoidance groove, and through grooves are arranged on the upper and lower sides of the circular groove.

[0016] The present invention is further configured as follows: a second spring is fixedly connected to the inside of the slide groove, a sliding tooth block is fixedly connected to the other end of the second spring, the sliding tooth block is slidably connected to the slide groove, the upper side of the sliding tooth block is meshedly connected to a first gear, the first gear is rotatably connected to the first main shaft, and a first L-shaped block is fixedly connected to one side of the first gear.

[0017] The present invention is further configured as follows: a second gear is meshedly connected to the lower side of the sliding gear block, the second gear is rotationally connected to the first main shaft, and a second L-shaped block is fixedly connected to one side of the second gear.

[0018] The controller detects the rotation speed of the first spindle, thereby automatically adjusting the rotation speed of the second spindle to make the rotation speed of the second spindle close to that of the first spindle, effectively preventing the two spindles from having a large rotation speed difference when connected to each other, causing the spindle temperature to rise, resulting in bearing lubrication failure and damage. While detecting the rotation speed of the first spindle, it can also determine whether the first spindle needs to be inserted quickly, thereby automatically adjusting the power of the electric push rod, effectively preventing the slow-rotating special motor spindle from stopping quickly.

[0019] The present invention is further configured as follows: the structure of the second shock-absorbing and heat-dissipating component is the same as that of the first shock-absorbing and heat-dissipating component, the first shock-absorbing and heat-dissipating component includes a guide sliding block, the guide sliding block is fixedly connected to the inner side of the first positioning ring, the guide sliding block is internally slidably connected with a sliding block, one side of the sliding block is fixedly connected with a first spring, and the other end of the first spring is fixedly connected to the guide sliding block.

[0020] The present invention is further configured as follows: an air outlet is provided inside the guide sliding block, and an air injection pipe is fixedly connected to the output end of the air outlet.

[0021] By providing the first shock-absorbing and heat-dissipating assembly and the second shock-absorbing and heat-dissipating assembly, the first spring can not only reduce the shock at both ends of the first main shaft, but also spray the compressed air inside the guide slider from the air jet pipe to the inside of the first bearing and the second bearing for air cooling, thereby effectively preventing the bearing from being damaged due to the vibration of the first main shaft and the two main shafts from being unable to dock, thereby achieving the effects of high shock-absorbing efficiency and high heat dissipation efficiency.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By providing a second transmission mechanism, when the special motor is about to fail, the first main shaft and the second main shaft are automatically connected, so that the special motor can be driven again, effectively preventing the sudden stop of the main shaft from causing safety risks and economic losses, and achieving the effect of preventing the special motor from failing. After the first stator coil is completely repaired, the first main shaft and the second main shaft are automatically separated, effectively preventing the first main shaft from driving the second main shaft to rotate and cutting the magnetic flux lines of the second stator coil, thereby affecting the rotation of the first main shaft, and achieving the effect of strong working stability of the special motor.

[0024] 2. The controller detects the rotation speed of the first spindle, thereby automatically adjusting the rotation speed of the second spindle to make the rotation speed of the second spindle close to that of the first spindle, effectively preventing the two spindles from having a large rotation speed difference when connected to each other, causing the spindle temperature to rise, resulting in bearing lubrication failure and damage. In addition, while detecting the rotation speed of the first spindle, it can also determine whether the first spindle needs to be inserted quickly, thereby automatically adjusting the power of the electric push rod, effectively preventing the slow-rotating special motor spindle from stopping quickly.

[0025] 3. By providing the first shock-absorbing and heat-dissipating assembly and the second shock-absorbing and heat-dissipating assembly, the first spring can not only reduce the shock at both ends of the first main shaft, but also spray the compressed air inside the guide slider from the air jet pipe to the inside of the first bearing and the second bearing for air cooling, thereby effectively preventing the bearing from being damaged due to the vibration of the first main shaft and the phenomenon that the two main shafts cannot be docked, thereby achieving the effects of high shock-absorbing efficiency and high heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a redundant protection structure for preventing failure of a special motor according to the present invention;

[0027] Figure 2 It is a partial cross-sectional view of the special motor in the present invention;

[0028] Figure 3 It is a structural schematic diagram of the first transmission mechanism in the present invention;

[0029] Figure 4 is a schematic structural diagram of the first shock absorbing mechanism in the present invention;

[0030] Figure 5 is a schematic structural diagram of the second shock absorbing mechanism in the present invention;

[0031] Figure 6 It is a structural schematic diagram of the outer side of the second transmission mechanism in the present invention;

[0032] Figure 7 It is a schematic structural diagram of the inner side of the second transmission mechanism in the present invention;

[0033] Figure 8 A schematic cross-sectional view of the first main axis of the present invention;

[0034] Fig. 9 It is a schematic structural diagram of the first shock-absorbing and heat-dissipating component in the present invention.

[0035] Description of reference numerals: 1. housing;

[0036] 2. First shock absorbing mechanism; 21. First bearing; 22. First positioning ring; 23. First shock absorbing and heat dissipating assembly;

[0037] 231, limit block; 232, slider; 233, first spring; 234, guide slider; 235,

[0038] Air outlet; 236, jet pipe;

[0039] 3. First transmission mechanism; 31. First main shaft; 32. First rotor coil; 33. First rotor core; 34. First stator coil; 35. First stator core;

[0040] 311, first gear; 312, slide groove; 313, second spring; 314, tooth-avoiding groove; 315, second L-shaped block; 316, first L-shaped block; 317, slide tooth block; 318, through groove; 319, second gear;

[0041] 4. Second shock absorbing mechanism; 41. Second positioning ring; 42. Second bearing; 43. Second shock absorbing and heat dissipating assembly;

[0042] 5. Second transmission mechanism; 51. Sliding ring; 52. Electric push rod; 53. Second stator core; 54. Second stator coil; 55. Second rotor core; 56. Second rotor coil; 57. Second main shaft; 571. Card slot;

[0043] 6. Controller. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0046] For example, see Figure 1-9The present invention provides the following technical solutions: a redundant protection structure for preventing failure of a special motor, comprising a shell 1, a controller 6 is fixedly connected to the outer side of the shell 1, a first shock absorbing mechanism 2 is arranged inside the shell 1, a first transmission mechanism 3 is arranged on one side of the first shock absorbing mechanism 2, a second shock absorbing mechanism 4 is arranged on one side of the first transmission mechanism 3, and a second transmission mechanism 5 is arranged on one side of the second shock absorbing mechanism 4.

[0047] Specifically, the first shock absorbing mechanism 2 and the second shock absorbing mechanism 4 are used to reduce shock at both ends of the first main shaft 31, and the second transmission mechanism 5 is used to connect with the main shaft of the first transmission mechanism 3 when the first transmission mechanism 3 fails, so as to drive the first transmission mechanism 3 to continuously rotate and prevent it from stopping.

[0048] A control module and a detection module are provided inside the controller 6 , and the control module is signal-connected with the detection module.

[0049] See also Figure 3 The first transmission mechanism 3 includes a first stator core 35, which is fixedly connected to the inner side of the housing 1, and the first stator coil 34 is wound around the outer side of the first stator core 35. A first rotor core 33 is provided on the inner side of the first stator core 35, and the first rotor coil 32 is wound around the outer side of the first rotor core 33. The first main shaft 31 is fixedly connected to the interior of the first rotor core 33.

[0050] Specifically, when current is passed through the first stator coil 34 on the first stator core 35, a rotating magnetic field is generated, and the first rotor core 33 rotates in the rotating magnetic field generated by the first stator core 35. Due to the principle of electromagnetic induction, induced electromotive force and current are generated in the first rotor core 33, thereby forming an electromagnetic torque, causing the first rotor core 33 to rotate.

[0051] See also Figure 4 The first shock absorbing mechanism 2 includes a first positioning ring 22, which is fixedly connected to the inner side of the housing 1, and a first bearing 21 is fixedly connected to the inner side of the first positioning ring 22. Four first shock absorbing and heat dissipating components 23 are evenly arranged on the inner side of the first positioning ring 22.

[0052] See also Figure 5 The second shock absorbing mechanism 4 includes a second positioning ring 41, which is fixedly connected to the inner side of the housing 1, a second bearing 42 is fixedly connected inside the second positioning ring 41, and four second shock absorbing and heat dissipating components 43 are evenly fixedly connected to one side of the second positioning ring 41.

[0053] Specifically, the first damping and heat dissipation assembly 23 and the second damping and heat dissipation assembly 43 are respectively used to dampen the two ends of the first main shaft 31 , and dissipate heat inside the first bearing 21 and the second bearing 42 respectively while damping the vibration.

[0054] One end of the first main shaft 31 is rotatably connected to the inside of the first bearing 21 , and the other end of the first main shaft 31 is rotatably connected to the inside of the second bearing 42 .

[0055] See also Figure 6 The second transmission mechanism 5 includes a sliding ring 51, which is slidably connected to the inside of the housing 1. Two electric push rods 52 are provided on one side of the sliding ring 51. The electric push rods 52 are fixedly connected to the housing 1, and the output ends of the electric push rods 52 are fixedly connected to the sliding ring 51.

[0056] Specifically, the extension and retraction of the output end of the electric push rod 52 is used to control the sliding, thereby indirectly controlling the second main shaft 57 to approach or move away from the first main shaft 31 .

[0057] See also Figure 7 A second stator core 53 is fixedly connected to the inside of the slip ring 51, a second stator coil 54 is wound around the outside of the second stator core 53, a second rotor core 55 is provided inside the second stator core 53, a second rotor coil 56 is wound around the outside of the second rotor core 55, a second main shaft 57 is fixedly connected to the inside of the second rotor core 55, and one end of the second main shaft 57 is connected to the bearing of the slip ring 51.

[0058] Specifically, the principle of the second transmission mechanism 5 is the same as that of the first transmission mechanism 3 , and will not be repeated here.

[0059] See also Figure 8 A plurality of slots 571 are evenly arranged at the other end of the second main shaft 57, a slide groove 312 is arranged inside the first main shaft 31, a tooth avoidance groove 314 is arranged on one side of the slide groove 312, a smooth groove is arranged on one side of the tooth avoidance groove 314, and through grooves 318 are arranged on the upper and lower sides of the smooth groove.

[0060] Specifically, the circular groove is used to insert the first main shaft 31 , and the tooth avoidance groove 314 is used to avoid the meshing teeth on the upper and lower sides of the sliding gear block 317 .

[0061] A second spring 313 is fixedly connected inside the slide groove 312, and a sliding tooth block 317 is fixedly connected to the other end of the second spring 313. The sliding tooth block 317 is slidably connected to the slide groove 312, and the upper side of the sliding tooth block 317 is meshedly connected to the first gear 311, which is rotatably connected to the first main shaft 31, and a first L-shaped block 316 is fixedly connected to one side of the first gear 311.

[0062] Specifically, when the second spring 313 pushes out the sliding tooth block 317, the first L-shaped block 316 and the second L-shaped block 315 are in a vertical horizontal state. When the sliding tooth block 317 moves to the left and fully compresses the second spring 313, the first L-shaped block 316 rotates ninety degrees clockwise and the second L-shaped block 315 rotates ninety degrees counterclockwise. When the sliding tooth block 317 moves to the right and the second spring 313 fully pushes out the sliding tooth block 317, the first L-shaped block 316 rotates ninety degrees counterclockwise and the second L-shaped block 315 rotates ninety degrees clockwise.

[0063] The lower side of the sliding gear block 317 is meshedly connected with a second gear 319 , the second gear 319 is rotatably connected to the first main shaft 31 , and one side of the second gear 319 is fixedly connected with a second L-shaped block 315 .

[0064] Specifically, when the special motor is about to fail, the first spindle 31 needs to be connected to the second spindle 57, the second stator coil 54 is energized, the second spindle 57 rotates rapidly, the output end of the electric push rod 52 is fully extended, and the second spindle 57 is driven to move, so that the second spindle 57 is inserted into the inner part of the circular groove of the first spindle 31. At this time, the sliding gear block 317 is supported by the second spindle 57 to move and fully compress the second spring 313, the first L-shaped block 316 rotates 90 degrees clockwise, and the second L-shaped block 315 rotates 90 degrees counterclockwise. Since the rotation speeds of the first spindle 31 and the second spindle 57 are different, after one rotation, one end of the first L-shaped block 316 and the second L-shaped block 315 are inserted into the slot 571 of the second spindle 57, so that the second spindle 57 drives the first spindle 31 to rotate. At this time, the rotation speeds of the first spindle 31 and the second spindle 57 are the same. Since the first stator coil 34 is fused, the first stator coil 34 will not be cut by the rotating first rotor core 33. The magnetic flux line, therefore, will not affect the rotating first spindle 31 and the second spindle 57.

[0065] When the first stator coil 34 is completely repaired, in order to prevent the first main shaft 31 from driving the second main shaft 57 to rotate and cutting the magnetic flux lines of the second stator coil 54, thereby affecting the rotation of the first main shaft 31, the first main shaft 31 and the second main shaft 57 need to be separated, the output end of the electric push rod 52 is completely retracted, the second main shaft 57 is disengaged from the circular groove, the second spring 313 completely pushes the sliding tooth block 317 out, the first L-shaped block 316 rotates ninety degrees counterclockwise, and the second L-shaped block 315 rotates ninety degrees clockwise. At this time, the first L-shaped block 316 and the second L-shaped block 315 are disengaged from the slot 571 and reset, and the first stator coil 34 is energized. At this time, the first main shaft 31 starts to rotate, and the second main shaft 57 no longer rotates.

[0066] By providing the second transmission mechanism 5, when the special motor is about to fail, the first main shaft 31 and the second main shaft 57 are automatically connected, so that the special motor can be driven again, effectively preventing the safety risks and economic losses caused by the sudden stop of the main shaft, and achieving the effect of preventing the special motor from failing. After the first stator coil 34 is completely repaired, the first main shaft 31 and the second main shaft 57 are automatically separated, effectively preventing the first main shaft 31 from driving the second main shaft 57 to rotate and cutting the magnetic flux lines of the second stator coil 54, thereby affecting the rotation of the first main shaft 31, and achieving the effect of strong working stability of the special motor.

[0067] Embodiment 2. In certain applications, special motors may need to run at high or low speeds. For example, in the aerospace field, special motors may need to run at high speeds to provide sufficient thrust, while in medical equipment, such as surgical robots, precisely controlled low-speed operation may be required. When the two spindles are connected to each other, the rotational speeds of the two spindles cannot differ too much. A large difference may easily lead to an increase in the spindle temperature. The high spindle temperature may cause the bearing lubrication to fail, resulting in bearing damage, further affecting the normal operation of the motor. When the special motor fails, the fast-rotating special motor spindle has a large inertia and can continue to rotate for a long time, so it can be inserted and connected normally. The slow-rotating special motor spindle has a small inertia and cannot continue to rotate for a long time. It may stop at any time and needs to be quickly inserted and connected. Otherwise, it is easy to cause the two spindles to be not connected yet and the spindle of the special motor has stopped, thereby causing the failure of the special motor to bring unnecessary safety risks and economic losses. Therefore, the following structure is designed to solve the above technical problems.

[0068] The controller 6 monitors the rotation speed of the first spindle 31 and the rotation speed of the second spindle 57, and assumes that the normal rotation speed is 500 revolutions per minute and the fast rotation speed is 2,000 revolutions per minute. When the special motor fails and the controller 6 detects that the rotation speed of the first spindle 31 is the normal rotation speed, since the first spindle 31 with a fast rotation speed will continue to rotate due to inertia when it fails in the first time, the speed will become slower and slower during inertial rotation. Therefore, the controller 6 controls the rotation speed of the second spindle 57 to 500 revolutions per minute, which is close to the rotation speed of the first spindle 31. Because the slow-rotating special motor spindle has a small inertia, it cannot rotate for a long time and may stop at any time. The output end of the electric push rod 52 increases the power, and the output end of the electric push rod 52 quickly extends to control the second spindle 57 to be quickly inserted into the smooth groove of the first spindle 31. Therefore, when the second spindle 57 is inserted into the first spindle 31, excessive heat will not be generated and the rotation of the first spindle 31 will not stop.

[0069] When the special motor fails and the controller 6 detects that the speed of the first spindle 31 is at a fast speed, the controller 6 controls the speed of the second spindle 57 to two thousand revolutions per minute, which is close to the speed of the first spindle 31. The output end of the electric push rod 52 extends normally, controlling the second spindle 57 to be inserted into the smooth groove of the first spindle 31.

[0070] The controller 6 detects the rotation speed of the first spindle 31, thereby automatically adjusting the rotation speed of the second spindle 57 to make the rotation speed of the second spindle 57 close to that of the first spindle 31, effectively preventing the rotation speeds of the two spindles from being too different when the two spindles are connected to each other, causing the spindle temperature to rise, resulting in bearing lubrication failure and damage. While detecting the rotation speed of the first spindle 31, it can also determine whether the first spindle 31 needs to be inserted quickly, thereby automatically adjusting the power of the electric push rod 52, effectively preventing the slow-rotating special motor spindle from stopping quickly.

[0071] Embodiment three: when the motor load exceeds its rated capacity or the voltage exceeds the rated value, the motor may be overloaded, and then the motor may overheat, burn out or melt the stator coil. When the stator coil melts, it may cause uneven distribution of the magnetic field inside the motor, causing an imbalance in the rotor, thereby generating vibration. The vibration may cause the two main shaft axes to be unable to align and unable to be connected horizontally. The vibration may also cause damage to mechanical parts, such as bearings, couplings or other mechanical connection parts. A large amount of heat may also be generated in the area where the main shaft contacts the bearing, causing thermal deformation inside the bearing, accelerating the wear of the bearing, and affecting the subsequent working accuracy. Therefore, the following structure is designed to solve the above technical problems.

[0072] See also Fig. 9 The structure of the second shock-absorbing and heat-dissipating component 43 is the same as that of the first shock-absorbing and heat-dissipating component 23. The first shock-absorbing and heat-dissipating component 23 includes a guide slider 234, which is fixedly connected to the inner side of the first positioning ring 22. The guide slider 234 is internally slidably connected with a slider 232, one side of the slider 232 is fixedly connected to a limiting block 231, one side of the slider 232 is fixedly connected to a first spring 233, and the other end of the first spring 233 is fixedly connected to the guide slider 234.

[0073] Specifically, when the limit block 231 is hit, the slider 232 slides to compress the first spring 233, and the first spring 233 is deformed and absorbs vibration energy. While the slider 232 slides to compress the first spring 233, the air inside the guide slider 234 is squeezed into the air outlet 235. The air inside the air outlet 235 is ejected from the output end of the jet pipe 236, and then respectively ejected into the first bearing 21 and the second bearing 42 for air cooling.

[0074] An air outlet 235 is provided inside the guide slider 234 , and an air injection pipe 236 is fixedly connected to the output end of the air outlet 235 .

[0075] Specifically, when the first stator coil 34 is blown, the magnetic field inside the special motor is unevenly distributed, causing the first rotor core 33 to be unbalanced, thereby causing the first main shaft 31 to vibrate. When the first main shaft 31 rotating at high speed vibrates, the vibration frequency at both ends of the first main shaft 31 is large.

[0076] When high-frequency vibration occurs at both ends of the first main shaft 31, the two ends of the first main shaft 31 hit the limit block 231, the slider 232 slides to compress the first spring 233, the first spring 233 deforms and absorbs the vibration energy, thereby reducing the vibration of the first main shaft 31. While the slider 232 slides and compresses the first spring 233, the slider 232 squeezes the air inside the guide slider 234 into the air outlet 235, and the air inside the air outlet 235 is ejected from the output end of the jet pipe 236, thereby respectively ejected into the first bearing 21 and the second bearing 42 for air cooling. Therefore, every time the limit block 231 is hit, the first spring 233 will reduce the vibration of the first main shaft 31, and eject the compressed air from the jet pipe 236 into the first bearing 21 and the second bearing 42 for air cooling.

[0077] By providing the first shock-absorbing and heat-dissipating component 23 and the second shock-absorbing and heat-dissipating component 43, the first spring 233 can not only reduce the shock at both ends of the first main shaft 31, but also spray the compressed air inside the guide slider 234 from the jet pipe 236 to the inside of the first bearing 21 and the second bearing 42 for air cooling, thereby effectively preventing the vibration of the first main shaft 31 from causing damage to the bearing and the inability to connect the two main shafts, thereby achieving the effects of high shock-absorbing efficiency and high heat dissipation efficiency.

[0078] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A redundant protection structure for preventing failure of special motors, characterized in that: The invention comprises a housing (1), the outer side of the housing (1) being fixedly connected to a controller (6), the interior of the housing (1) being provided with a first damping mechanism (2), one side of the first damping mechanism (2) being provided with a first transmission mechanism (3), one side of the first transmission mechanism (3) being provided with a second damping mechanism (4), and one side of the second damping mechanism (4) being provided with a second transmission mechanism (5); The controller (6) is provided with a control module and a detection module inside, and the control module is connected to the detection module by signal; The first transmission mechanism (3) comprises a first stator core (35), the first stator core (35) being fixedly connected to the inner side of the housing (1), a first stator coil (34) being wound and connected to the outer side of the first stator core (35), a first rotor core (33) being provided on the inner side of the first stator core (35), a first rotor coil (32) being wound and connected to the outer side of the first rotor core (33), and a first main shaft (31) being fixedly connected to the interior of the first rotor core (33); The first shock absorbing mechanism (2) comprises a first positioning ring (22), the first positioning ring (22) being fixedly connected to the inner side of the housing (1), the inner side of the first positioning ring (22) being fixedly connected to a first bearing (21), and the inner side of the first positioning ring (22) being evenly provided with four first shock absorbing and heat dissipating components (23); The second shock absorbing mechanism (4) comprises a second positioning ring (41), the second positioning ring (41) being fixedly connected to the inner side of the housing (1), a second bearing (42) being fixedly connected inside the second positioning ring (41), and four second shock absorbing and heat dissipating components (43) being evenly fixedly connected to one side of the second positioning ring (41); One end of the first main shaft (31) is rotatably connected to the inside of the first bearing (21), and the other end of the first main shaft (31) is rotatably connected to the inside of the second bearing (42); The second transmission mechanism (5) comprises a sliding ring (51), the sliding ring (51) being slidably connected to the inside of the housing (1), two electric push rods (52) being provided on one side of the sliding ring (51), the electric push rods (52) being fixedly connected to the housing (1), and the output ends of the electric push rods (52) being fixedly connected to the sliding ring (51); A second stator core (53) is fixedly connected inside the slip ring (51), a second stator coil (54) is wound around the outside of the second stator core (53), a second rotor core (55) is provided inside the second stator core (53), a second rotor coil (56) is wound around the outside of the second rotor core (55), a second main shaft (57) is fixedly connected inside the second rotor core (55), and one end of the second main shaft (57) is connected to a bearing of the slip ring (51); A plurality of slots (571) are evenly arranged at the other end of the second main shaft (57), a slide groove (312) is arranged inside the first main shaft (31), a tooth avoidance groove (314) is arranged on one side of the slide groove (312), a rounded groove is arranged on one side of the tooth avoidance groove (314), and through grooves (318) are arranged on both upper and lower sides of the rounded groove; A second spring (313) is fixedly connected inside the slide groove (312); a sliding tooth block (317) is fixedly connected to the other end of the second spring (313); the sliding tooth block (317) is slidably connected to the slide groove (312); a first gear (311) is meshedly connected to the upper side of the sliding tooth block (317); the first gear (311) is rotatably connected to the first main shaft (31); and a first L-shaped block (316) is fixedly connected to one side of the first gear (311); The lower side of the sliding gear block (317) is meshedly connected with a second gear (319), the second gear (319) is rotationally connected to the first main shaft (31), and one side of the second gear (319) is fixedly connected with a second L-shaped block (315).

2. The redundant protection structure for preventing failure of special motors according to claim 1 is characterized in that: The structure of the second shock-absorbing and heat-dissipating assembly (43) is the same as that of the first shock-absorbing and heat-dissipating assembly (23); the first shock-absorbing and heat-dissipating assembly (23) comprises a guide slide block (234); the guide slide block (234) is fixedly connected to the inner side of the first positioning ring (22).

3. The redundant protection structure for preventing failure of special motors according to claim 2 is characterized in that: The guide sliding block (234) is slidably connected to a sliding block (232) inside, one side of the sliding block (232) is fixedly connected to a limiting block (231), one side of the sliding block (232) is fixedly connected to a first spring (233), and the other end of the first spring (233) is fixedly connected to the guide sliding block (234).

4. The redundant protection structure for preventing failure of special motors according to claim 3 is characterized in that: An air outlet hole (235) is provided inside the guide sliding block (234), and an air injection pipe (236) is fixedly connected to the output end of the air outlet hole (235).

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