High-efficiency low-noise permanent magnet synchronous motor and gear all-in-one machine

Abstract

The invention relates to the technical field of permanent magnet synchronous motors, in particular to a high-efficiency low-noise permanent magnet synchronous motor and gear all-in-one machine which comprises a permanent magnet motor, a frequency converter, a speed reducer, a connecting plate, a mounting plate, a cushioning mechanism and a damping mechanism. The permanent magnet motor is a permanent magnet synchronous motor, and the frequency converter is installed on the permanent magnet motor. The speed reducer is installed at the output end of the permanent magnet motor, and the connecting plate is installed below the permanent magnet motor. The connecting plate is mounted below the mounting plate, and the cushioning mechanism and the damping mechanism are mounted on the mounting plate; a contact plate in the damping mechanism and the upper surface of a damping block in the damping mechanism are mounted on the lower surface of a connecting plate; the cushioning mechanism extrudes a piston through a contact plate, and damping and buffering are achieved through flowing of hydraulic oil in a balance cavity and an oil cavity. The damping mechanism drives two translation rings to extrude a damping spring through downward pressing of a damping block so as to offset the vibration torque in the vertical direction, and therefore damping and noise reduction are conducted.

Description

Technical Field

[0001] The present invention relates to the technical field of permanent magnet synchronous motors, and in particular to a high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine. Background Art

[0002] A permanent magnet synchronous motor gearbox is a drive device that combines a permanent magnet synchronous motor with a gear reducer. Its primary function is to reduce the motor's output speed through the gear reducer while simultaneously increasing output torque to meet actual operating conditions. A permanent magnet synchronous motor, with a rotor made of permanent magnet material, features high efficiency, high power density, and stable operation. Compared to traditional asynchronous motors, it offers higher efficiency and a smaller footprint. A gear reducer uses gears or other transmission mechanisms to reduce output speed and increase output torque. The direct integration of the motor and reducer results in a more compact design, higher transmission efficiency, and reduced installation and maintenance complexity. Permanent magnet synchronous motors offer high electromagnetic efficiency and operational stability. The reducer further optimizes power transmission efficiency. The reduction gearbox increases output torque, making it suitable for heavy-load applications. The integrated design significantly reduces the size of the device, making it particularly suitable for applications with limited installation space. The reducer's mechanical transmission components are optimized to withstand significant shock and load. A permanent magnet synchronous motor reducer combines the advantages of a permanent magnet synchronous motor and a gear reducer, finding widespread application in applications requiring low speed and high torque. Depending on specific needs, you can choose a split or integrated design.

[0003] If the noise and vibration problems of the permanent magnet synchronous motor gear integrated machine are serious during operation, it will not only affect work efficiency, but may also bring the following adverse effects: Increased wear of parts: Noise and vibration may come from abnormal operation of components such as gears and bearings, such as poor meshing or insufficient lubrication, which will cause faster wear of parts and shorten the service life of the equipment. Long-term vibration will cause fatigue cracks in mechanical components such as the casing and couplings, and even cause failures. Vibration may cause the position of the reducer output shaft to shift, affecting the precise docking with the load end, thereby reducing the operating accuracy of the system. Impact on the working environment: Noise will cause distress to operators, and long-term exposure to high-noise environments may cause hearing damage and work fatigue. Vibration transmission: Vibration may be transmitted to other equipment through the ground or bracket, interfering with its normal operation. For example, it may affect precision instruments or production equipment on the same platform.

[0004] In view of the above situation, in order to overcome the above technical problems, the present invention designs a high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine to solve the above technical problems. Summary of the Invention

[0005] The technical objective to be achieved by the present invention is as follows: An efficient and low-noise permanent magnet synchronous motor gear integrated machine is designed to eliminate the noise generated by vibration during the operation of the existing permanent magnet synchronous motor gear integrated machine, improve the working stability, and enhance the working efficiency.

[0006] In order to achieve the above technical objective, the present invention provides the following technical solutions:

[0007] The efficient and low-noise permanent magnet synchronous motor gear integrated machine is an integrated device widely used in industrial automation, transportation equipment, and new energy fields, aiming to improve the efficiency of power output and reduce the impact of noise and vibration. This device consists of multiple core components such as a permanent magnet motor, a frequency converter, a speed reducer, a connecting plate, a mounting plate, a shock-absorbing mechanism, and a damping mechanism. Structurally, the core power part of this device is the permanent magnet synchronous motor, and its efficient operation benefits from the built-in permanent magnets. This material can provide a stable magnetic field, thus ensuring the high energy efficiency and low energy consumption of the motor. A frequency converter is installed above the permanent magnet synchronous motor. Through the precise control of the frequency converter, the optimization adjustment of the motor speed and torque is realized to meet the requirements of different working conditions. This design makes the device operate more smoothly, effectively reduces the mechanical impact during motor startup and shutdown, and further reduces noise and vibration.

[0008] The output end of the permanent magnet synchronous motor is connected to a speed reducer. The function of the speed reducer is to reduce the output speed and increase the output torque, so as to meet the working requirements of the load equipment. To ensure the structural compactness and mechanical stability of the entire system, a connecting plate is provided at the bottom of the device. The connecting plate firmly connects the permanent magnet motor to the mounting plate and simultaneously provides support for the shock-absorbing mechanism and the damping mechanism. The coordinated design of the shock-absorbing mechanism and the damping mechanism is the key to the vibration reduction and noise reduction of this device.

[0009] The shock-absorbing mechanism squeezes the piston through the contact plate, and realizes buffering and shock absorption by using the hydraulic oil flow in the balance chamber and the oil chamber. This hydraulic shock-absorbing design can absorb most of the instantaneous impact force, significantly reduce the vibration and noise generated during the operation of the device. The damping mechanism drives two translation rings to squeeze the damping spring through the downward pressure action of the damping block, thereby effectively offsetting the vibration torque in the vertical direction. Through this double-layer damping design, not only the stability of the device is improved, but also the service life of the device is extended.

[0010] The shock-absorbing mechanism consists of key components such as a shock-absorbing sleeve, a contact plate, a piston, a buffer spring, and a support spring, aiming to effectively absorb and buffer the impact force generated during the operation of the equipment. The shock-absorbing sleeve is fixedly installed in the mounting plate of the equipment, providing stable support for the entire shock-absorbing mechanism. The contact plate is located below the connecting plate, directly contacting the external vibration force, and transmitting the vibration force to the shock-absorbing mechanism through its stable structure. The piston is tightly installed below the contact plate and is the core component for force transmission. A buffer spring is installed below it, responsible for absorbing the initial vibration force. The support spring is installed below the support plate and acts in cooperation with the buffer spring to further disperse and relieve the vibration through elastic deformation. Such a multi-layer shock-absorbing design not only improves the stability and service life of the equipment but also significantly reduces the impact of noise and vibration on the surrounding environment.

[0011] The design of the piston is consistent with the inner diameter value of the shock-absorbing sleeve. This design ensures that the piston can move smoothly within the shock-absorbing sleeve, effectively avoiding lateral shaking or deviation. Through this strictly matched structural design, the independence of the balance chamber and the oil chamber in the shock-absorbing mechanism can be guaranteed. Specifically, when the piston moves up and down within the shock-absorbing sleeve, the hydraulic oil between the balance chamber and the oil chamber will not mix, thus maintaining the stability and reliability of the hydraulic system. This precise sealing structure not only improves the shock-absorbing performance of the shock-absorbing mechanism but also reduces the loss of vibration force during transmission, further optimizing the vibration reduction and noise reduction effects of the equipment and providing an important guarantee for the long-term stable operation of the entire device.

[0012] The shock-absorbing sleeve includes key parts such as a return channel, a return hole, a balance hole, a balance chamber, and an oil chamber to achieve effective dispersion of hydraulic shock absorption and vibration energy. The return channel is opened on the side wall of the shock-absorbing sleeve, and its lower end is connected to the inside of the shock-absorbing sleeve, providing a path for the circulation of hydraulic oil during operation, thus ensuring the balance of the internal pressure of the system and the stability of the shock-absorbing performance. The return hole is located in the lower part of the inner wall of the shock-absorbing sleeve and forms an integral path with the return channel, used to recover the excess hydraulic oil to avoid the influence of liquid accumulation on the system operation. The balance hole is opened in the upper part of the inner wall of the shock-absorbing sleeve and is connected to the balance chamber, used to adjust the internal pressure of the chamber to prevent the failure or performance degradation of the hydraulic system caused by uneven pressure. Through the precise layout of these channels and holes, the hydraulic oil can flow efficiently between the balance chamber and the oil chamber, ensuring the sensitivity and stability of the shock-absorbing mechanism when absorbing the vibration force and providing vibration reduction and noise reduction effects for the entire equipment.

[0013] The balance hole is designed in a conical shape, and the smaller end of the cone is arranged outward. This unique structure helps to optimize the flow path of the hydraulic oil, thereby improving the performance of the shock-absorbing mechanism. Specifically, the design of the conical hole can provide a smoother return channel when the hydraulic oil flows from the balance chamber to the oil chamber, reducing the return resistance and ensuring the pressure stability inside the hydraulic system. When the piston moves downward, the smaller end of the conical hole will form a certain resistance to the flow of the hydraulic oil, thereby generating an additional buffering force during the flow of the hydraulic oil. This buffering force can effectively absorb and disperse instantaneous vibration forces and improve the shock-absorbing effect.

[0014] The internal cavity of the shock-absorbing sleeve is divided into two independent regions, namely the balance chamber and the oil chamber. The balance chamber is located above the piston inside the shock-absorbing sleeve and cooperates with the movement of the piston to receive the returned hydraulic oil and adjust the internal pressure balance of the system. The oil chamber is located below the piston and serves as the main storage area for the hydraulic oil. During the operation of the equipment, when an external vibration force acts on the piston, the piston moves downward, squeezing the hydraulic oil in the oil chamber.

[0015] During the squeezing process, the hydraulic oil in the oil chamber is forced to flow into the balance chamber through the return channel. This process not only effectively absorbs the vibration force but also gradually releases the vibration force through the slow flow of the hydraulic oil, avoiding violent impacts. In addition, since the flow of the hydraulic oil in the return channel is controlled, its flow rate and pressure are precisely adjusted, further enhancing the shock-absorbing effect. Through the coordinated action of the oil chamber and the balance chamber, the shock-absorbing sleeve can significantly reduce vibration and noise during the operation of the motor, improving the stability and service life of the equipment. This design fully reflects the high efficiency and reliability of the hydraulic shock-absorbing technology and provides a guarantee for the operation of high-precision equipment.

[0016] The shock-absorbing mechanism consists of key components such as mounting blocks, fixed rods, limit blocks, shock-absorbing components, and shock-absorbing springs, aiming to effectively absorb and offset the vibrations generated during the operation of the equipment, thereby improving the stability and comfort of the overall system. The mounting blocks are fixed at both ends of the mounting plate, providing the basic support for the shock-absorbing mechanism and ensuring the stability of each component. The fixed rod is located in the middle of the mounting block and is connected to the limit blocks at both ends. The function of the limit blocks is to prevent the excessive movement of the fixed rod and ensure the tightness and stability of the structure.

[0017] The shock-absorbing components are installed on the fixed rod and are the core part of the shock-absorbing system, responsible for regulating and controlling the release of vibration energy through the pressure of the springs. The shock-absorbing springs are installed between the two shock-absorbing components, playing an elastic role to relieve the impact force and vibration energy generated during the operation of the equipment. Through this multi-level shock-absorbing design, the shock-absorbing springs can absorb the impact force during the operation of the equipment, reduce the transmission of vibration forces, significantly reduce the impact of vibrations on the equipment, and improve the service life and reliability of the equipment.

[0018] The shock-absorbing components are mirror-symmetrically arranged on both sides of the fixed rod. This symmetric design enhances the stability and balance of the shock-absorbing mechanism. Through this arrangement, the vibration generated by the motor will be effectively dispersed into the shock-absorbing components on both sides, thereby achieving uniform absorption of vibration. When the motor operates, the up-and-down vibration displacement trend generated is captured by the shock-absorbing components on both sides and converted into the extrusion force on the shock-absorbing springs. This extrusion force causes the shock-absorbing springs to undergo elastic deformation, thereby converting the kinetic energy of vibration into the elastic potential energy of the springs.

[0019] Due to the good elasticity of the shock-absorbing springs, the elastic potential energy stored in them can effectively offset the vibration force generated by the motor, reducing the impact of vibration on the equipment and the environment. Through the coordinated action of the shock-absorbing components on both sides, the vibration is evenly distributed and alleviated, further enhancing the shock-absorbing effect and strengthening the stability and precision of the motor operation. This design not only improves the shock-absorbing efficiency of the system but also extends the service life of the equipment and reduces the maintenance cost.

[0020] The shock-absorbing component consists of key components such as a translation ring, a connecting block, a connecting rod, and a shock-absorbing block, aiming to effectively absorb and alleviate the vibration generated by the motor during operation. The translation ring is installed on the fixed rod, allowing it to perform translational motion on the fixed rod to respond to the change of vibration. The connecting block is installed on the translation ring, playing a role of bearing and fixing, and transmitting the vibration force to the connecting rod below. The connecting rod is installed on the connecting block, serving as a bridge connecting the translation ring and the shock-absorbing block to ensure the stable operation of the shock-absorbing component. The shock-absorbing block is installed on the connecting rod and directly participates in the vibration absorption process. Through the coordinated work of these components, the shock-absorbing component can effectively convert the kinetic energy of the motor vibration into elastic potential energy, thereby reducing the transmission of the shock force, significantly reducing the vibration and noise of the equipment, and enhancing the operation stability of the equipment.

[0021] The design of the inclined connecting rod enables the downward pressure generated by the shock-absorbing block to be effectively converted into the extrusion force on the shock-absorbing spring. Through this inclination angle, the connecting rod can guide the direction of the shock force, enabling it to better convert the vertical shock force into the compression force on the shock-absorbing spring when the shock-absorbing block is vibrated, thereby enhancing the shock-absorbing effect. Further, the extrusion force of the shock-absorbing spring will interact with the elastic potential energy of the supporting spring to offset the shock force and provide strong shock-absorbing support to ensure the smoothness of the equipment during operation.

[0022] The shock-absorbing blocks are arranged in parallel to ensure that they can fully receive the vertical shock force from the permanent magnet motor. By arranging them in parallel, the shock-absorbing blocks can evenly share the shock force, avoiding uneven shock absorption effects caused by excessive local stress. To improve the shock-absorbing performance, the shock-absorbing blocks are made of rubber material, which has excellent elasticity, wear resistance and shock-absorbing effect, can effectively absorb vibration and reduce noise, thus improving the overall operating stability and service life of the equipment.

[0023] The beneficial effects of the present invention are as follows:

[0024] (1) By setting up a shock-absorbing mechanism, the present invention effectively buffers and dampens the vertical shock force generated by the permanent magnet motor by using the elastic potential energy of the spring and the pressure of the hydraulic oil, thus significantly reducing noise and improving the working efficiency of the equipment. During the operation of the permanent magnet motor, vertical shock forces will be generated. These shock forces not only affect the smooth operation of the motor, but may also have an adverse impact on the overall structure of the equipment and the environment, such as increasing noise and vibration. To effectively reduce these vibrations, the present invention designs a shock-absorbing mechanism including a spring and a hydraulic system. The core components of the shock-absorbing mechanism are the hydraulic system and the spring system. The hydraulic system absorbs vibration through the pressure of the flowing hydraulic oil. When the shock force acts on the system, the hydraulic oil enters the balance chamber through the return channel and uses the pressure in the oil chamber to buffer the vibration. This hydraulic buffering can quickly absorb large impact forces and reduce the impact of vibration on the equipment. At the same time, the flow of the hydraulic oil is precisely regulated to ensure the pressure difference between the balance chamber and the oil chamber, thus ensuring a more stable shock-absorbing effect. In addition to the hydraulic system, the shock-absorbing mechanism also uses a spring system to further enhance the shock-absorbing effect. When the shock force acts on the shock-absorbing block, the connecting rod transmits the shock force to the shock-absorbing spring, and the spring compresses, stores energy and generates elastic potential energy. These elastic forces can effectively counteract the shock force and reduce the transmission of vibration.

[0025] (2) By setting up a shock-absorbing mechanism, the present invention strengthens shock absorption for the areas with relatively severe vibrations at both ends of the permanent magnet motor, optimizing the overall shock-absorbing effect. During the operation of the motor, especially in the areas at both ends, due to changes in load and power transmission, significant vibrations often occur. To effectively alleviate this problem, the present invention designs a shock-absorbing system that uses shock-absorbing components and shock-absorbing springs to absorb and disperse the shock force. The function of the shock-absorbing components is to receive the shock force from both ends of the motor and convert it into a squeezing force on the shock-absorbing springs. Through its structural design, the shock-absorbing components transfer the vertical shock force generated by the motor to the shock-absorbing springs. The shock-absorbing springs then absorb and store the shock force through elastic deformation, thereby reducing the impact of vibrations on the equipment. In this way, the shock-absorbing components gradually dissipate the shock force, preventing it from directly acting on the motor and the equipment structure, and thus reducing the negative impact of vibrations on the equipment performance and lifespan. The design of the shock-absorbing mechanism not only aims to reduce vibrations but also particularly considers the influence of torque. Through the effective absorption of the shock-absorbing components, the vertical shock force is converted into the elastic potential energy of the spring, significantly reducing the generation of torque. This measure effectively reduces the rotational torque caused by vibrations, improves the operating stability of the motor, reduces the impact of vibrations on the motor bearings and other key components, and thus improves the efficiency and reliability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Now, the above and other aspects of the present invention will be described by way of example only with reference to the drawings, where:

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic diagram of the installation positions of the mounting plate, shock-absorbing mechanism, and damping mechanism of the present invention;

[0030] Figure 3 is a schematic diagram of the internal structure of the shock-absorbing mechanism of the present invention;

[0031] Figure 4 is a sectional view of the shock-absorbing mechanism of the present invention;

[0032] Figure 5 is a schematic diagram of the structure of the damping mechanism of the present invention;

[0033] Figure 6It is a schematic structural diagram of the shock absorption component of the present invention;

[0034] Figure 7 It is a sectional view of the shock absorption mechanism of the present invention;

[0035] Figure 8 It is a schematic diagram of another permanent magnet synchronous motor gear integrated machine applicable to the present invention.

[0036] In the figure: 1, permanent magnet motor; 2, frequency converter; 3, speed reducer; 4, connecting plate; 5, mounting plate; 6, shock absorption mechanism; 61, shock absorption sleeve; 611, return channel; 612, return hole; 613, balance hole; 614, balance cavity; 615, oil cavity; 62, contact plate; 63, piston; 64, buffer spring; 65, support spring; 7, shock absorption mechanism; 71, mounting block; 72, fixing rod; 73, limiting block; 74, shock absorption component; 741, translation ring; 742, connecting block; 743, connecting rod; 744, shock absorption block; 75, shock absorption spring. Specific embodiments

[0037] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific embodiments.

[0038] Embodiment 1: As Figure 1-8 shown, the high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine is an integrated device widely used in the fields of industrial automation, transportation equipment and new energy, aiming to improve the efficiency of power output and reduce the impact of noise and vibration. The device consists of multiple core components such as a permanent magnet motor 1, a frequency converter 2, a speed reducer 3, a connecting plate 4, a mounting plate 5, a shock absorption mechanism 6 and a shock absorption mechanism 7. Structurally, the core power part of the device is the permanent magnet synchronous motor, and its efficient operation benefits from the built-in permanent magnet, which can provide a stable magnetic field, thus ensuring the high energy efficiency and low energy consumption of the motor. The frequency converter 2 is installed above the permanent magnet synchronous motor, and through the precise control of the frequency converter 2, the optimization adjustment of the motor speed and torque is realized to meet the requirements of different working conditions. This design makes the device operate more smoothly, effectively reduces the mechanical impact during motor start and stop, and further reduces noise and vibration.

[0039] The output end of the permanent magnet synchronous motor is connected to the speed reducer 3. The function of the speed reducer 3 is to reduce the output speed and increase the output torque, so as to meet the working requirements of the load equipment. To ensure the structural compactness and mechanical stability of the entire system, a connecting plate 4 is provided at the bottom of the device. The connecting plate 4 firmly connects the permanent magnet motor 1 to the mounting plate 5, and at the same time provides support for the shock absorption mechanism 6 and the shock absorption mechanism 7. The cooperative design of the shock absorption mechanism 6 and the shock absorption mechanism 7 is the key to the vibration and noise reduction of the device.

[0040] The shock-absorbing mechanism 6 squeezes the piston 63 through the contact plate 62, and realizes shock absorption by utilizing the flow of hydraulic oil in the balance cavity 614 and the oil cavity 615. This hydraulic shock-absorbing design can absorb most of the instantaneous impact force, significantly reducing the vibration and noise generated during the operation of the equipment. The shock-absorbing mechanism 7, through the downward pressing action of the shock-absorbing block 744, drives the two translation rings 741 to squeeze the shock-absorbing spring 75, thereby effectively offsetting the vibration torque in the vertical direction. Through this double-layer shock-absorbing design, not only the stability of the equipment is improved, but also the service life of the equipment is extended.

[0041] As Figure 3 shown, the shock-absorbing mechanism 6 consists of key components such as a shock-absorbing sleeve 61, a contact plate 62, a piston 63, a buffer spring 64, and a support spring 65, aiming to effectively absorb and buffer the impact force generated during the operation of the equipment. The shock-absorbing sleeve 61 is fixedly installed in the mounting plate 5 of the equipment, providing stable support for the entire shock-absorbing mechanism 6. The contact plate 62 is located below the connecting plate 4, directly contacting the external vibration force, and transmitting the vibration force to the shock-absorbing mechanism 6 through its stable structure. The piston 63 is tightly installed below the contact plate 62 and is the core component of force transmission. A buffer spring 64 is installed below it, responsible for absorbing the initial vibration force. The support spring 65 is installed below the support plate and acts in coordination with the buffer spring 64 to further disperse and relieve the vibration through elastic deformation. Such a multi-layer shock-absorbing design not only improves the stability and service life of the equipment, but also significantly reduces the impact of noise and vibration on the surrounding environment.

[0042] The design of the piston 63 is consistent with the inner diameter value of the shock-absorbing sleeve 61. This design ensures that the piston 63 can move smoothly within the shock-absorbing sleeve 61, effectively avoiding lateral shaking or offset. Through this strictly matched structural design, the independence of the balance cavity 614 and the oil cavity 615 in the shock-absorbing mechanism 6 can be guaranteed. Specifically, when the piston 63 moves up and down within the shock-absorbing sleeve 61, the hydraulic oil between the balance cavity 614 and the oil cavity 615 will not mix, thus maintaining the stability and reliability of the hydraulic system. This precise sealing structure not only improves the shock-absorbing performance of the shock-absorbing mechanism 6, but also reduces the loss of vibration force during transmission, further optimizing the shock absorption and noise reduction effects of the equipment, and providing an important guarantee for the long-term stable operation of the entire device.

[0043] As Figure 4As shown, the shock-absorbing sleeve 61 includes key components such as a return channel 611, a return hole 612, a balance hole 613, a balance cavity 614, and an oil cavity 615 to achieve effective hydraulic shock absorption and dispersion of vibration energy. The return channel 611 is opened on the side wall of the shock-absorbing sleeve 61, and its lower end is connected to the inside of the shock-absorbing sleeve 61, providing a path for the circulation of hydraulic oil during operation, thus ensuring the balance of the internal pressure of the system and the stability of the shock-absorbing performance. The return hole 612 is located in the lower part of the inner wall of the shock-absorbing sleeve 61 and forms an integral path with the return channel 611 for recovering excess hydraulic oil to prevent liquid accumulation from affecting the system operation. The balance hole 613 is opened in the upper part of the inner wall of the shock-absorbing sleeve 61 and is connected to the balance cavity 614 for adjusting the internal pressure of the cavity to prevent the failure or performance degradation of the hydraulic system caused by uneven pressure. Through the precise layout of these channels and holes, the hydraulic oil can flow efficiently between the balance cavity 614 and the oil cavity 615, ensuring the sensitivity and stability of the shock-absorbing mechanism 6 when absorbing vibration force and providing shock absorption and noise reduction effects for the entire device.

[0044] As Figure 3 shown, the balance hole 613 adopts a conical design, and the smaller end of the cone is arranged outward. This unique structure helps to optimize the flow path of the hydraulic oil, thereby improving the performance of the shock-absorbing mechanism 6. Specifically, the design of the conical hole can provide a smoother return channel 611 when the hydraulic oil flows from the balance cavity 614 to the oil cavity 615, reducing the return resistance and ensuring the pressure stability inside the hydraulic system. When the piston 63 moves downward, the smaller end of the conical hole will form a certain resistance to the flow of the hydraulic oil, thereby generating an additional buffer force during the flow of the hydraulic oil. This buffer force can effectively absorb and disperse instantaneous vibration force and improve the shock-absorbing effect.

[0045] The internal cavity of the shock-absorbing sleeve 61 is divided into two independent regions, namely the balance cavity 614 and the oil cavity 615. The balance cavity 614 is located above the piston 63 inside the shock-absorbing sleeve 61 and cooperates with the movement of the piston 63 to receive the returned hydraulic oil and adjust the internal pressure balance of the system. The oil cavity 615 is located below the piston 63 and serves as the main storage area for the hydraulic oil. During the operation of the device, when an external vibration force acts on the piston 63, the piston 63 moves downward, squeezing the hydraulic oil in the oil cavity 615.

[0046] During the extrusion process, the hydraulic oil in the oil chamber 615 is forced to flow into the balance chamber 614 through the return channel 611. This process not only effectively absorbs the vibration force but also gradually releases the vibration force through the slow flow of the hydraulic oil, avoiding violent impacts. In addition, since the flow of the hydraulic oil in the return channel 611 is controlled, its flow rate and pressure are precisely regulated, further enhancing the shock absorption effect. Through the synergistic effect of the oil chamber 615 and the balance chamber 614, the shock-absorbing sleeve 61 can significantly reduce vibration and noise during the operation of the motor, improving the stability and service life of the equipment. This design fully embodies the high efficiency and reliability of the hydraulic shock absorption technology, providing a guarantee for the operation of high-precision equipment.

[0047] As Figure 5 shown, the shock-absorbing mechanism 7 consists of key components such as the mounting block 71, the fixing rod 72, the limiting block 73, the shock-absorbing component 74, and the shock-absorbing spring 75, aiming to effectively absorb and offset the vibration generated during the operation of the equipment, thereby improving the stability and comfort of the overall system. The mounting block 71 is fixed at both ends of the mounting plate 5, providing the basic support for the shock-absorbing mechanism 7 and ensuring the stability of each component. The fixing rod 72 is located in the middle of the mounting block 71 and is connected to the limiting block 73 at both ends. The function of the limiting block 73 is to prevent the excessive movement of the fixing rod 72, ensuring the tightness and stability of the structure.

[0048] The shock-absorbing component 74 is installed on the fixing rod 72 and is the core part of the shock-absorbing system, responsible for regulating the pressure of the spring and controlling the release of vibration energy. The shock-absorbing spring 75 is installed between the two shock-absorbing components 74, playing an elastic role to relieve the impact force and vibration energy generated during the operation of the equipment. Through this multi-level shock-absorbing design, the shock-absorbing spring 75 can absorb the impact force during the operation of the equipment, reduce the transmission of the vibration force, significantly reduce the impact of vibration on the equipment, and improve the service life and reliability of the equipment.

[0049] The shock-absorbing components 74 are mirror-symmetrically arranged on both sides of the fixing rod 72. This symmetric design enhances the stability and balance of the shock-absorbing mechanism 7. Through this arrangement, the vibration generated by the motor will be effectively dispersed into the shock-absorbing components 74 on both sides, thereby achieving uniform absorption of vibration. When the motor is operating, the upward and downward vibration displacement trends generated are captured by the shock-absorbing components 74 on both sides and converted into the extrusion force on the shock-absorbing spring 75. This extrusion force causes the shock-absorbing spring 75 to undergo elastic deformation, thereby converting the kinetic energy of the vibration into the elastic potential energy of the spring.

[0050] Due to the good elasticity of the shock-absorbing spring 75, the elastic potential energy it stores can effectively offset the vibration force generated by the motor, reducing the impact of vibration on the equipment and the environment. Through the synergistic effect of the shock-absorbing components 74 on both sides, the vibration is evenly distributed and alleviated, further enhancing the shock-absorbing effect and the stability and precision of the motor operation. This design not only improves the shock-absorbing efficiency of the system but also extends the service life of the equipment and reduces the maintenance cost.

[0051] As Figure 6 shown, the shock-absorbing component 74 consists of key components such as a translation ring 741, a connecting block 742, a connecting rod 743, and a shock-absorbing block 744, aiming to effectively absorb and alleviate the vibration generated by the motor during operation. The translation ring 741 is installed on the fixed rod 72, allowing it to perform translational motion on the fixed rod 72 to respond to the change of vibration. The connecting block 742 is installed on the translation ring 741, playing a role of bearing and fixing, and transmitting the vibration force to the connecting rod 743 below. The connecting rod 743 is installed on the connecting block 742, serving as a bridge connecting the translation ring 741 and the shock-absorbing block 744 to ensure the stable operation of the shock-absorbing component 74. The shock-absorbing block 744 is installed on the connecting rod 743 and directly participates in the vibration absorption process. Through the coordinated work of these components, the shock-absorbing component 74 can effectively convert the kinetic energy of the motor vibration into elastic potential energy, thereby reducing the transmission of the vibration force, significantly reducing the vibration and noise of the equipment, and improving the operation stability of the equipment.

[0052] The design of the inclined setting of the connecting rod 743 enables the downward pressure generated by the shock-absorbing block 744 to be effectively converted into the extrusion force on the shock-absorbing spring. Through this inclination angle, the connecting rod 743 can guide the direction of the vibration force, enabling it to better convert the vertical vibration force into the compression force on the shock-absorbing spring when the shock-absorbing block 744 is vibrated, thereby enhancing the shock-absorbing effect. Further, the extrusion force of the shock-absorbing spring will interact with the elastic potential energy of the support spring 65 to offset the vibration force and provide strong shock-absorbing support to ensure the smoothness of the equipment during operation.

[0053] The shock-absorbing blocks 744 are arranged in parallel to ensure that they can fully receive the vertical vibration force from the permanent magnet motor 1. Through the parallel arrangement, the shock-absorbing blocks 744 can evenly share the vibration force, avoiding uneven shock-absorbing effects caused by excessive local force. To improve the shock-absorbing performance, the shock-absorbing blocks 744 are made of rubber material, which has excellent elasticity, wear resistance, and shock-absorbing effect, and can effectively absorb vibration and reduce noise, thereby improving the overall operation stability and service life of the equipment.

[0054] During the working process of the present invention, the mounting plate 5 is first installed and fixed on the ground or other equipment with higher stability. When the permanent magnet motor 1 works, it will generate vibration, and the vibration force is transmitted to the shock-absorbing mechanism 6 through the contact plate 62;

[0055] The connecting plate 4 presses down on the contact plate 62, causing the piston 63 to move downward against the support spring 65. The hydraulic oil in the oil chamber 615 enters the return passage 611 from the return hole 612 under pressure and finally enters the balance chamber 614 through the balance hole 613. During this process, both the buffer spring 64 and the support spring 65 provide a certain degree of buffering effect;

[0056] The shock-absorbing block 744 contacts the vibration force at both ends of the connecting plate 4. The downward pressure causes the inclined connecting rod 743 to drive the translation ring 741 to move relatively, thereby squeezing the shock-absorbing spring 75 to achieve the shock-absorbing and buffering effect.

[0057] Embodiment 2: As Figure 8 shown, a frequency converter 2 is installed on the side of the permanent magnet motor 1, and the speed reducer 3 is installed in front of the permanent magnet motor 1;

[0058] The main structure of this permanent magnet motor 1 mainly consists of three parts: the permanent magnet motor 1, the frequency converter 2, and the speed reducer 3. Each component is closely coordinated to form an efficient and integrated power unit. The permanent magnet motor 1, as the core power source of the entire device, uses permanent magnet materials to generate a stable magnetic field, ensuring that the motor has a high energy efficiency ratio and excellent power output performance during operation. This design not only improves the operating efficiency of the motor but also reduces energy loss, enabling the device to maintain a low temperature rise and a stable working state during long-term continuous operation. The frequency converter 2 is located on the side of the permanent magnet motor and has a square structure, responsible for adjusting the operating frequency and speed of the motor. Through advanced frequency conversion technology, this part can adjust the motor output in real time according to the actual working conditions, effectively avoiding energy waste and equipment wear caused by frequent start and stop of the motor. In addition, the application of the frequency converter can also reduce the impact current during the start and stop of the motor, improving the overall reliability and lifespan of the system. In front of the frequency converter 2, a contactor (or transformer) is equipped, which plays a role in controlling the on-off of the current and stabilizing the voltage, providing necessary electrical protection and adjustment functions for the entire motor system, and ensuring that the device can operate safely and reliably under different voltage conditions. The speed reducer part located at the front end of the permanent magnet motor effectively reduces the rotational speed output by the motor through gears or other reduction devices, thereby increasing the output torque and enabling the motor to adapt to a wider range of load requirements. The presence of the speed reducer makes the permanent magnet speed reduction motor particularly prominent in applications that require high torque and low speed, and it is widely used in industrial transmission, automation equipment, and mechanical manufacturing fields.

[0059] If this kind of permanent magnet motor 1 is adopted, the mounting plate 5 is arranged under the speed reducer 1, and the rest is the same as in Embodiment 1.

[0060] Various modifications to the present disclosure will be apparent to those of ordinary skill in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein. Although one or more exemplary embodiments of the present disclosure have been described with reference to the accompanying drawings, those of ordinary skill in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. High-efficiency and low-noise permanent magnet synchronous motor gear integrated machine, characterized in that, It includes a permanent magnet motor (1), a frequency converter (2), a speed reducer (3), a connecting plate (4), a mounting plate (5), a shock absorption mechanism (6) and a damping mechanism (7); The permanent magnet motor (1) is set as a permanent magnet synchronous motor, and the frequency converter (2) is installed on top of the permanent magnet motor (1); The speed reducer (3) is installed at the output end of the permanent magnet motor (1), and the connecting plate (4) is installed below the permanent magnet motor (1); The connecting plate (4) is installed below the connecting plate (4), and the shock absorption mechanism (6) and the damping mechanism (7) are installed on the mounting plate (5); The upper surface of the contact plate (62) in the damping mechanism (7) and the damping block (744) in the damping mechanism (7) is installed below the connecting plate (4); The shock absorption mechanism (6) squeezes the piston (63) through the contact plate (62), and realizes shock absorption and buffering by the flow of hydraulic oil in the balance cavity (614) and the oil cavity (615); The damping mechanism (7) drives two translation rings (741) to squeeze the damping spring (75) by pressing down the damping block (744), so as to offset the vibration torque in the vertical direction, thereby achieving shock absorption and noise reduction.

2. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 1, wherein: The shock absorption mechanism (6) includes a shock absorption sleeve (61), a contact plate (62), a piston (63), a buffer spring (64) and a support spring (65); The shock absorption sleeve (61) is installed in the mounting plate (5), the contact plate (62) is installed below the connecting plate (4), the piston (63) is installed below the contact plate (62), the buffer spring (64) is installed below the piston (63), and the support spring (65) is installed below the support plate.

3. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 2, characterized in that: The diameter value of the piston (63) is set to be the same as the inner diameter value of the shock absorption sleeve (61).

4. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 2, characterized in that: The shock absorption sleeve (61) includes a return channel (611), a return hole (612) and a balance hole (613); The return channel (611) is opened in the side wall of the shock absorption sleeve (61), the lower end of the return channel (611) is communicated with the inside of the shock absorption sleeve (61), the return hole (612) is opened in the lower part of the inner wall of the shock absorption sleeve (61), and the balance hole (613) is opened in the upper part of the inner wall of the shock absorption sleeve (61).

5. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 4, characterized in that: The balance hole (613) is set to be conical, and the smaller end of the cone faces outwards.

6. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 4, wherein: The internal cavity of the shock absorption sleeve (61) is set as a balance cavity (614) and an oil cavity (615); the balance cavity (614) is set as the cavity part above the piston (63), and the oil cavity (615) is set as the cavity part below the piston (63).

7. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 1, characterized in that: The damping mechanism (7) includes a mounting block (71), a fixed rod (72), a limit block (73), a damping component (74) and a damping spring (75); The mounting blocks (71) are installed at both ends of the mounting plate (5), the fixed rod (72) is installed in the middle of the mounting blocks (71), the limit blocks (73) are installed at both ends of the fixed rod (72), the damping components (74) are installed on the fixed rod (72), and the damping springs (75) are installed between the two damping components (74).

8. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 7, wherein: The shock-absorbing assemblies (74) are arranged in mirror images on both sides of the fixed rod (72).

9. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 7, wherein: The shock-absorbing assembly (74) includes a translation ring (741), a connecting block (742), a connecting rod (743), and a shock-absorbing block (744); The translation ring (741) is arranged on the fixed rod (72), the connecting block (742) is installed on the translation ring (741), the connecting rod (743) is installed on the connecting block (742), and the shock-absorbing block (744) is installed on the connecting rod (743).

10. The high-efficiency and low-noise permanent magnet synchronous motor gear integrated machine according to claim 9, characterized in that: The connecting rod (743) is arranged obliquely, the shock-absorbing block (744) is arranged in parallel, and the shock-absorbing block (744) is made of rubber material.

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