An electric push rod motor

Abstract

This invention discloses an electric linear actuator motor, relating to the field of electric drive technology. The motor includes a drive unit, a linear actuator unit, and a gearbox. The gearbox contains a noise reduction component and an energy recovery component. The linear actuator unit contains an automatic lubrication structure. The noise reduction component reduces noise in the gearbox using multiple layers of sound insulation panels and sound insulation cotton. The energy recovery component converts the rotational mechanical energy of the drive unit into electrical energy to supply the controller through a permanent magnet and a coil. The lubrication structure provides continuous automatic lubrication of the linear actuator through a sponge and a feeding tube. This invention has advantages such as good noise reduction effect, high energy recovery efficiency, and convenient lubrication and maintenance, and is suitable for scenarios with high requirements for quietness and reliability, such as electric beds.

Description

Technical Field

[0001] This invention relates to the field of electric drive technology, specifically an electric linear actuator motor. Background Technology

[0002] As a core piece of furniture for daily rest, the comfort and functionality of beds directly impact sleep quality and quality of life. Traditional fixed beds have a simple structure and cannot be adjusted to meet the user's immediate needs, making them unsuitable for the diverse lifestyles of modern life. For example, scenarios such as reading, watching movies, alleviating snoring, assisting in getting up, or lying down all require adjustable support angles for the back, legs, and other areas of the bed surface.

[0003] As a result, electric beds have emerged. Through a built-in electric drive mechanism, electric beds enable smooth and flexible lifting and angle adjustment of different areas of the bed board (such as the back area and leg area), thereby significantly improving the adaptability, comfort and health assistance functions of the bed. They are now widely used in home bedrooms, medical care and high-end hotels.

[0004] However, as the core driving component of an electric bed, the existing electric linear actuator motor suffers from increased wear and tear due to friction between the actuator and the inner wall of the outer casing during long-term extension and retraction movements, which affects the service life of the component. Traditional manual lubrication methods are cumbersome and it is difficult to ensure timely and uniform lubrication. Summary of the Invention

[0005] The purpose of this invention is to provide an electric linear actuator motor to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electric linear actuator motor, comprising a controller, the electric linear actuator motor comprising a drive unit, a linear actuator unit, and a gearbox, wherein the drive unit and the linear actuator unit are respectively connected to the gearbox, and the gearbox is provided with a noise reduction component and a recovery component, wherein the recovery component is connected to the controller, the noise reduction component reduces noise in the drive unit and the gearbox through sound insulation material, and the recovery component converts the rotational force of the drive unit into electrical energy and supplies it to the controller; The push rod unit is equipped with a lubrication structure, which lubricates the push rod unit with lubricating oil. The lubrication structure includes a limit frame, and a lubricating sponge is provided inside the limit frame. Multiple sets of guide sponges are provided at the bottom of the lubricating sponge. A feeding pipe is installed at the bottom of the limit frame, and a one-way valve is provided between the feeding pipe and the limit frame.

[0007] Existing electric linear motors still have some problems that need to be solved in practical applications. On the one hand, when the gearbox of a traditional electric linear motor is running at high speed, the meshing of internal gears and the rotation of bearings will generate a lot of noise. This noise is directly transmitted to the outside through the heat dissipation holes on the gearbox, which not only affects the user's rest experience, but also makes the noise problem more prominent in environments with high requirements for quietness, such as medical care or bedrooms. On the other hand, during the driving process of electric linear actuator motors, especially when there are frequent starts and stops or load changes, some mechanical energy is not fully utilized, resulting in a certain amount of energy waste. Meanwhile, during long-term telescopic movement, the friction between the push rod and the inner wall of the fixed tube will cause the components to wear out more quickly, affecting their service life. Traditional manual lubrication is cumbersome and it is difficult to ensure the timeliness and uniformity of lubrication. Furthermore, in applications such as electric beds, if the push rod is subjected to unexpected overload or obstruction, the lack of an effective pressure monitoring and feedback mechanism may lead to motor damage or bed structure deformation, posing a safety hazard.

[0008] Furthermore, the noise reduction component includes sound insulation cotton and several sound insulation boards. The several sound insulation boards are respectively arranged on the heat dissipation holes of the gearbox. Several noise reduction holes are provided on the sound insulation boards. The diameter of the noise reduction holes on each group of sound insulation boards is different. The closer the sound insulation board is to the heat dissipation hole, the smaller the diameter of the heat dissipation hole on it. Sound insulation cotton is provided between adjacent sound insulation boards.

[0009] Existing noise reduction structures mostly use a single sound insulation material to block or a simple channel sound-absorbing design, such as directly pasting a layer of sound insulation cotton at the heat dissipation hole. Although this method can block the transmission of noise to a certain extent, it often significantly reduces the ventilation efficiency of the heat dissipation hole, causing heat to accumulate inside the gearbox and affecting the normal operating temperature and service life of the motor. Furthermore, the noise reduction component can reduce the noise generated by the transmission components through the noise reduction holes and sound insulation cotton on the sound insulation board.

[0010] This allows for the reduction of noise without affecting heat dissipation.

[0011] Furthermore, the recycling component includes a recycling frame, inside which a recycling coil is disposed, and the output end of the drive unit is provided with multiple sets of permanent magnets, which are located between the recycling coils, and the recycling coils are electrically connected to the controller via wires.

[0012] During the driving process, especially when there are frequent starts and stops or load changes, some mechanical energy of the push rod motor is not fully utilized, resulting in a certain amount of energy waste. Furthermore, the drive unit includes a housing, inside which a rotor and a stator are disposed. One end of the rotor is installed inside a gearbox, and the end of the rotor located inside the gearbox is provided with a main gear and the permanent magnet.

[0013] Existing drive components are relatively simple; therefore, it is necessary to utilize each component and increase the coordination between them. Furthermore, when the rotor rotates, it drives the main gear and permanent magnet to rotate. The permanent magnet rotates between the recovery coil and generates an induced current by cutting the magnetic field lines. This induced current is transmitted to the controller through the wire, realizing the recovery and reuse of electrical energy from the rotational force of the drive unit.

[0014] To better utilize the mechanical energy and reduce its waste.

[0015] Furthermore, the gearbox is equipped with several transmission shafts, on which transmission gears are mounted. The transmission shafts are connected to the push rod assembly, and the transmission gears are connected to the main gear. When the main gear rotates, it drives the transmission gears to rotate.

[0016] This transmits the rotational motion of the main gear to the drive shaft, providing the power basis for the linear motion of the push rod unit. The meshing transmission between the main gear and the drive gear not only realizes the transmission of power, but also changes the transmission ratio by adjusting the gear ratio between the two, thereby adjusting the output speed and thrust of the push rod unit to adapt to different load requirements.

[0017] Furthermore, the push rod unit includes a fixed tube, inside which a push rod and a drive rod are disposed. The drive rod is installed inside the push rod, and the other end of the drive rod is connected to a transmission shaft. The limiting frame is installed at the end of the push rod. A limiting groove is provided on the inner wall of the fixed tube, and a limiting block is provided on the outer wall of the push rod. The limiting block is slidably installed in the limiting groove, and the drive rod is connected to the push rod via a thread.

[0018] Compared to existing electric actuators, this device can automatically lubricate the outer surface of the actuator during each extension and retraction, without the need for manual intervention.

[0019] Furthermore, a connecting plate is mounted on the output end of the push rod via a bearing, and a pressure sensing plate is mounted on the other side of the connecting plate.

[0020] Furthermore, the controller is located above the gearbox.

[0021] This facilitates the connection of various lines and makes subsequent maintenance and other work easier.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting multiple layers of sound insulation boards and sound insulation cotton with gradually changing pore sizes at the heat dissipation holes of the gearbox, multiple sound absorption barriers are formed, which effectively block and absorb the noise generated by gear meshing and bearing operation, taking into account both heat dissipation and noise reduction requirements, and significantly improving the applicability of the motor in a quiet environment. 2. A permanent magnet and a recovery coil are set at the output end of the drive unit. Through the principle of electromagnetic induction, part of the rotational mechanical energy is converted into electrical energy to supply the controller. This reduces dependence on external power sources, realizes dynamic energy recovery and efficient utilization, and improves the overall energy efficiency ratio. 3. The push rod unit has a built-in lubrication structure. The lubricating oil is evenly applied through the lubricating sponge and guide sponge. With the help of the replenishment pipe and one-way valve, the lubricating oil is automatically replenished and backflow is prevented. This ensures that the push rod remains lubricated during long-term extension and retraction, reduces wear, lowers the maintenance frequency, and extends the service life of the motor. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the noise reduction component of the present invention; Figure 5 This is a schematic diagram of the lubrication structure of the present invention; Figure 6 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 7 For the present invention Figure 3 Enlarged view of point B in the middle; In the diagram: 1. Drive unit; 11. Housing; 12. Rotor; 13. Stator; 2. Push rod unit; 21. Fixed tube; 22. Push rod; 23. Drive rod; 24. Connecting plate; 241. Pressure sensing plate; 3. Gearbox; 31. Drive shaft; 32. Main gear; 33. Transmission gear; 4. Noise reduction component; 41. Sound insulation cotton; 42. Sound insulation board; 43. Noise reduction hole; 5. Recycling component; 51. Recycling frame; 52. Recycling coil; 53. Permanent magnet; 6. Lubrication structure; 61. Limiting frame; 62. Lubricating sponge; 63. Guide sponge; 64. Feeding tube; 7. Controller. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example: Figures 1-7 As shown, the present invention provides an electric linear actuator motor technical solution, including a controller 7. The electric linear actuator motor includes a drive unit 1, a linear actuator unit 2, and a gearbox 3. The drive unit 1 and the linear actuator unit 2 are respectively connected to the gearbox 3. The gearbox 3 is provided with a noise reduction component 4 and a recovery component 5. The recovery component 5 is connected to the controller 7. The noise reduction component 4 reduces noise for the drive unit 1 and the gearbox 3 through sound insulation material. The recovery component 5 converts the rotational force of the drive unit 1 into electrical energy and supplies it to the controller 7. The push rod unit 2 is equipped with a lubrication structure 6. The lubrication structure 6 lubricates the push rod unit 2 with lubricating oil. The lubrication structure 6 includes a limit frame 61. The limit frame 61 is equipped with a lubricating sponge 62. Multiple sets of guide sponges 63 are provided at the bottom of the lubricating sponge 62. A feeding pipe 64 is installed at the bottom of the limit frame 61. A one-way valve is provided between the feeding pipe 64 and the limit frame 61. When the device is in use, after the drive unit 1 is started, the power it generates is transmitted to the push rod unit 2 via the gearbox 3, causing the push rod to extend and retract. During this process, the noise reduction component 4 inside the gearbox 3 plays its role. The sound insulation material effectively absorbs and blocks the noise generated during the operation of the drive unit 1 and the meshing of the gears, significantly reducing the overall sound pressure level of the motor and creating a quieter working environment. At the same time, during the operation of the drive unit 1, the recovery component 5 converts some of the excess rotational power into electrical energy through a specific energy conversion mechanism and stores it. This electrical energy can be supplied to the controller 7 in real time, thereby optimizing the energy consumption of the motor and improving efficiency. To improve energy efficiency, the lubrication structure 6 continuously lubricates and maintains the push rod inside the push rod unit 2. When the push rod reciprocates within the limit frame 61, it comes into contact with the lubricating sponge 62 inside the limit frame 61. The lubricating oil adsorbed in the lubricating sponge 62 is evenly distributed to the push rod surface through multiple sets of guide sponges 63 at the bottom under the squeezing action of the push rod, ensuring smooth push rod movement and reducing friction and wear. When the amount of lubricating oil in the lubricating sponge 62 is insufficient, lubricating oil can be added to the limit frame 61 through the replenishment pipe 64. The one-way valve between the replenishment pipe 64 and the limit frame 61 can effectively prevent the lubricating oil from flowing back, ensuring the continuous and stable operation of the lubrication system.

[0026] like Figures 3-4As shown in this embodiment, specifically, the noise reduction component 4 includes sound insulation cotton 41 and several sound insulation boards 42. Several sound insulation boards 42 are respectively arranged on the heat dissipation holes of the gearbox 3. Several noise reduction holes 43 are respectively provided on the sound insulation boards 42. The diameter of the noise reduction holes 43 on each group of sound insulation boards 42 is different. The closer the sound insulation board 42 is to the heat dissipation hole, the smaller the diameter of the heat dissipation hole on it. Sound insulation cotton 41 is provided between adjacent sound insulation boards 42. The transmission components inside the gearbox 3 often generate noise during use, which then propagates outward through the heat dissipation holes. The noise reduction component 4 of this invention forms multiple sound insulation barriers by arranging multiple layers of sound insulation panels 42 at the heat dissipation holes and filling the spaces between adjacent sound insulation panels 42 with sound insulation cotton 41. When noise waves radiate outward through the heat dissipation holes, they first contact the outermost sound insulation panel 42. The noise reduction holes 43 on this sound insulation panel 42 have a large diameter, which can initially disperse and attenuate the sound waves. Subsequently, the sound waves enter the sound insulation cotton 41 between the adjacent sound insulation panels 42, where multiple sound insulation cotton 41... The perforated structure can further absorb sound wave energy and reduce noise intensity. Then, the sound wave passes through the next layer of sound insulation plate 42. Since the diameter of the noise reduction holes 43 on this layer of sound insulation plate 42 gradually decreases compared to the previous layer, the sound wave will produce multiple reflections and interferences when passing through holes of different diameters, further weakening the propagation ability of noise. This multi-level, gradually changing hole diameter noise reduction design can not only ensure the normal heat dissipation requirements of gearbox 3, but also significantly enhance the blocking and absorption effect of noise, effectively solving the problem of noise leakage caused by the heat dissipation holes of gearbox 3 in traditional electric push rod motors.

[0027] like Figure 3 As shown, in this embodiment, specifically, the noise reduction component 4 can reduce the noise generated by the transmission component through the noise reduction holes 43 on the sound insulation plate 42 and the sound insulation cotton 41; Through the synergistic effect of the noise reduction holes 43 with gradually changing diameter on the sound insulation plate 42 in the noise reduction component 4 and the sound insulation cotton 41, the noise generated by the transmission component can be processed in layers, and the noise reduction function can be achieved through the sound insulation plate 42 and the sound insulation cotton 41.

[0028] like Figure 3 and Figure 7 As shown, in this embodiment, specifically, the recycling component 5 includes a recycling frame 51, a recycling coil 52 is provided inside the recycling frame 51, and multiple sets of permanent magnets 53 are provided at the output end of the drive unit 1. The permanent magnets 53 are located between the recycling coils 52, and the recycling coils 52 are electrically connected to the controller 7 through wires. When the drive unit 1 is working, multiple sets of permanent magnets 53 at its output end will rotate together with the drive shaft. These permanent magnets 53 are located between the recycling coils 52 inside the recycling frame 51. When the permanent magnets 53 make circular motion in the recycling coils 52, they will cut the magnetic field lines around the recycling coils 52. According to the principle of electromagnetic induction, an induced current will be generated in the recycling coils 52. The generated electrical energy is transmitted to the controller 7 through the wires. The controller 7 can rectify and regulate this part of the electrical energy and use it directly for its own operation power supply, or store the excess electrical energy in the external energy storage element when the motor is under low load. This design cleverly utilizes part of the rotational mechanical energy that the drive unit 1 might otherwise waste, converting it into the electrical energy required by the motor control system. This not only reduces the dependence on external power supply, but also effectively reduces energy loss and improves the overall energy efficiency ratio of the electric push rod motor. Especially in working scenarios where the motor starts and stops frequently or the load fluctuates greatly, the recycling component 5 can dynamically recover energy and replenish the controller 7 in a timely manner, which helps to maintain the stability of the controller 7 and extend the continuous working time of the motor.

[0029] like Figures 1-3 As shown, in this embodiment, specifically, the drive unit 1 includes a housing 11, inside which a rotor 12 and a stator 13 are disposed. One end of the rotor 12 is installed inside the gearbox 3, and the end of the rotor 12 located inside the gearbox 3 is provided with a main gear 32 and a permanent magnet 53. When the drive unit 1 is in use, one end of the rotor 12 is installed inside the gearbox 3. As the rotor 12 rotates, the main gear 32 and the permanent magnet 53 located at one end inside the gearbox 3 also rotate synchronously. The main gear 32, as a key component for power output, transmits the rotational motion of the rotor 12 to other gear structures inside the gearbox 3, thereby driving the push rod unit 2 to perform extension and retraction actions. Meanwhile, the permanent magnet 53 cooperates with the recovery coil 52 in the recovery assembly 5 during rotation to realize energy recovery and conversion, providing electrical power support for the controller 7.

[0030] like Figure 3 As shown, in this embodiment, specifically, when the rotor 12 rotates, it drives the main gear 32 and the permanent magnet to rotate, and the permanent magnet 53 rotates between the recovery coil 52, generating an induced current by cutting the magnetic field lines. This induced current is transmitted to the controller 7 through the wire, realizing the recovery and reuse of electrical energy from the rotation force of the drive unit 1. When the rotor 12 rotates, the main gear 32 at one end rotates synchronously with the permanent magnet 53. The main gear 32 transmits the driving force to the transmission system inside the gearbox 3, thereby driving the push rod unit 2 to move. At the same time, the permanent magnet 53 makes circular motion between the recycling coils 52 in the recycling frame 51, continuously cutting the magnetic field lines of the recycling coils 52. According to the law of electromagnetic induction, an induced electromotive force is generated at both ends of the recycling coils 52, thereby forming an induced current. This induced current is quickly transmitted to the controller 7 through the wire. After processing, the controller 7 uses part of it directly for its own circuit operation, and the other part can be stored when conditions permit. This achieves the purpose of efficiently converting part of the mechanical energy generated during the rotation of the drive unit 1 into electrical energy and recycling it for reuse, effectively improving the energy utilization efficiency of the motor.

[0031] like Figure 3 As shown in this embodiment, specifically, the gearbox 3 is provided with several transmission shafts 31, transmission gears 33 are mounted on the transmission shafts 31, the transmission shafts 31 are connected to the push rod assembly, the transmission gears 33 are connected to the main gear 32, and the main gear 32 drives the transmission gears 33 to rotate when it rotates. The main gear 32 starts to rotate under the drive of the drive unit 1. Since the transmission gear 33 and the main gear 32 form a meshing transmission relationship, the teeth of the main gear 32 will push the teeth of the transmission gear 33, causing the transmission gear 33 to rotate synchronously. The transmission gear 33 is fixedly installed on the transmission shaft 31. The two are connected by a key or interference fit to achieve reliable torque transmission.

[0032] like Figure 2 and Figure 6 As shown, in this embodiment, specifically, the push rod unit 2 includes a fixed tube 21, inside which a push rod 22 and a drive rod 23 are provided. The drive rod 23 is installed inside the push rod 22, and the other end of the drive rod 23 is connected to the transmission shaft 31. A limiting frame 61 is installed at the end of the push rod 22. A limiting groove is provided on the inner wall of the fixed tube 21, and a limiting block is provided on the outer wall of the push rod 22. The limiting block is slidably installed in the limiting groove, and the drive rod 23 is connected to the push rod 22 by a thread. When the push rod unit 2 is in use, when the transmission shaft 31 rotates under the drive of the drive unit 1, it will synchronously drive the drive rod 23 connected to it to rotate. Since the drive rod 23 is connected to the push rod 22 by a thread, and the limiting block on the outer wall of the push rod 22 is slidably installed in the limiting groove on the inner wall of the fixed tube 21, the cooperation between the limiting block and the limiting groove restricts the circumferential rotation of the push rod 22, so that the rotational motion of the drive rod 23 can be converted into the linear reciprocating motion of the push rod 22 along the axial direction of the fixed tube 21. Specifically, when the drive rod 23 rotates forward, the push rod 22 will extend outward along the fixed tube 21 under the action of the thread; when the drive rod 23 rotates in reverse, the push rod 22 will extend outward along the fixed tube 21. The push rod 22 retracts into the fixed tube 21. During the extension and retraction of the push rod 22, the limiting frame 61 installed at its end also moves accordingly. The lubricating sponge 62 inside the limiting frame 61 is in continuous contact with the surface of the push rod 22, ensuring that the push rod unit 2 always maintains good lubrication during long-term operation. This effectively reduces the frictional resistance between the push rod 22 and the fixed tube 21, extending the service life of the push rod unit 2. At the same time, the stable sliding of the limiting block in the limiting groove further ensures the smoothness and accuracy of the extension and retraction of the push rod 22, avoiding deviation or jamming of the push rod during movement, and improving the overall operating accuracy and reliability of the electric push rod motor.

[0033] like Figure 1 As shown, in this embodiment, specifically, a connecting plate 24 is mounted on the output end of the push rod 22 via a bearing, and a pressure sensing plate 241 is mounted on the other side of the connecting plate 24; Since this device is suitable for electric beds, when the electric bed is adjusted, the angle or height of the bed board needs to be changed by extending and retracting the push rod 22. At this time, the connecting plate 24 installed at the output end of the push rod 22 is connected to the bed board structure, while the pressure sensing plate 241 on the other side of the connecting plate 24 is in direct contact with the bed board or load. When the bed board bears the weight of a person or is subjected to external pressure, the pressure sensing plate 241 will detect the magnitude of the pressure in real time and convert the pressure signal into an electrical signal and transmit it to the controller 7. The controller 7 dynamically adjusts the output power of the drive unit 1 according to the received pressure signal. For example, when the pressure is detected to exceed the safety threshold, the controller 7 will immediately issue a command to reduce the output power of the drive unit 1 or stop the push rod action to prevent damage to the motor or deformation of the bed board structure due to overload. Within the normal pressure range, the pressure sensing plate 241 can continuously monitor load changes, helping the controller 7 to achieve precise control of the push rod extension speed and thrust, ensuring that the electric bed is both smooth and comfortable during adjustment, and effectively protecting the motor and mechanical structure, thus improving the safety and intelligence level of the electric bed.

[0034] like Figure 1 As shown in this embodiment, specifically, a controller 7 is provided above the gearbox 3; As the core control hub of the electric push rod motor, the controller 7 is installed above the gearbox 3. This not only facilitates the wiring connection with key components such as the recovery component 5 inside the gearbox 3 and the pressure sensing plate 241 in the push rod unit 2, shortening the signal transmission path and improving the control response speed, but also provides a certain degree of protection for the controller 7 by utilizing the structure of the gearbox 3, reducing the interference of external environmental factors on the controller 7.

[0035] Working Principle: When the device is in use, after the drive unit 1 starts, the power it generates is transmitted to the push rod unit 2 via the gearbox 3, causing the push rod to extend and retract. During this process, the noise reduction component 4 inside the gearbox 3 plays its role. The sound insulation material effectively absorbs and blocks the noise generated during the operation of the drive unit 1 and the meshing of the gears, significantly reducing the sound pressure level of the motor during operation and creating a quieter working environment. At the same time, during the operation of the drive unit 1, the recovery component 5 converts some of the excess rotational power into electrical energy through a specific energy conversion mechanism and stores it. This electrical energy can be supplied to the controller 7 in real time, thereby optimizing the energy consumption of the motor. This improves energy efficiency. Inside the push rod unit 2, the lubrication structure 6 continuously lubricates and maintains the push rod. When the push rod reciprocates within the limit frame 61, it comes into contact with the lubricating sponge 62 inside the limit frame 61. The lubricating oil adsorbed in the lubricating sponge 62 is evenly distributed to the push rod surface through multiple sets of guide sponges 63 at the bottom under the squeezing action of the push rod, ensuring smooth push rod movement and reducing friction and wear. When the amount of lubricating oil in the lubricating sponge 62 is insufficient, lubricating oil can be added to the limit frame 61 through the replenishment pipe 64. The one-way valve between the replenishment pipe 64 and the limit frame 61 can effectively prevent the lubricating oil from flowing back, ensuring the continuous and stable operation of the lubrication system.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric linear actuator motor, comprising a controller (7), characterized in that: The electric linear actuator motor includes a drive unit (1), a linear actuator unit (2), and a gearbox (3). The drive unit (1) and the linear actuator unit (2) are respectively connected to the gearbox (3). The gearbox (3) is equipped with a noise reduction component (4) and a recycling component (5). The recycling component (5) is connected to a controller (7). The noise reduction component (4) reduces noise for the drive unit (1) and the gearbox (3). The recycling component (5) converts the rotational force of the drive unit (1) into electrical energy and supplies it to the controller (7). The push rod unit (2) is provided with a lubrication structure (6) inside, the lubrication structure (6) lubricates the push rod unit (2), the lubrication structure (6) includes a limit frame (61), the limit frame (61) is provided with a lubricating sponge (62) inside, the bottom of the lubricating sponge (62) is provided with multiple sets of guide sponges (63), the bottom of the limit frame (61) is installed with a feeding pipe (64), and a one-way valve is provided between the feeding pipe (64) and the limit frame (61).

2. The electric linear actuator motor according to claim 1, characterized in that: The noise reduction component (4) includes sound insulation cotton (41) and several sound insulation boards (42). Several sound insulation boards (42) are respectively arranged on the heat dissipation holes of the gearbox (3). Several noise reduction holes (43) are respectively provided on the sound insulation boards (42). The diameter of the noise reduction holes (43) on each group of sound insulation boards (42) is different. The closer the sound insulation board (42) is to the heat dissipation hole, the smaller the diameter of the heat dissipation hole on it. Sound insulation cotton (41) is provided between adjacent sound insulation boards (42).

3. An electric linear actuator motor according to claim 2, characterized in that: The recycling component (5) includes a recycling frame (51), and a recycling coil (52) is provided inside the recycling frame (51). The output end of the drive unit (1) is provided with multiple sets of permanent magnets (53). The permanent magnets (53) are located between the recycling coils (52). The recycling coils (52) are electrically connected to the controller (7) through wires.

4. An electric linear actuator motor according to claim 3, characterized in that: The drive unit (1) includes a housing (11), inside which a rotor (12) and a stator (13) are provided. One end of the rotor (12) is installed inside the gearbox (3), and the rotor (12) located inside the gearbox (3) is provided with a main gear (32) and the permanent magnet (53).

5. An electric linear actuator motor according to claim 4, characterized in that: When the rotor (12) rotates, it drives the main gear (32) and the permanent magnet to rotate. The permanent magnet (53) rotates between the recycling coil (52) and generates an induced current by cutting the magnetic field lines. The induced current is transmitted to the controller (7) through the wire, so as to realize the recovery and reuse of the electrical energy of the rotation force of the drive unit (1).

6. An electric linear actuator motor according to claim 5, characterized in that: The gearbox (3) is provided with several transmission shafts (31), and transmission gears (33) are mounted on the transmission shafts (31). The transmission shafts (31) are connected to the push rod assembly. The transmission gears (33) are connected to the main gear (32) in a transmission connection. When the main gear (32) rotates, it drives the transmission gears (33) to rotate.

7. An electric linear actuator motor according to claim 6, characterized in that: The push rod unit (2) includes a fixed tube (21), inside which a push rod (22) and a drive rod (23) are provided. The drive rod (23) is installed inside the push rod (22), and the other end of the drive rod (23) is connected to the transmission shaft (31). The limiting frame (61) is installed at the end of the push rod (22). A limiting groove is provided on the inner wall of the fixed tube (21), and a limiting block is provided on the outer wall of the push rod (22). The limiting block is slidably installed in the limiting groove, and the drive rod (23) is connected to the push rod (22) by a thread.

8. An electric linear actuator motor according to claim 7, characterized in that: The output end of the push rod (22) is fitted with a connecting plate (24) via a bearing, and a pressure sensing plate (241) is fitted on the other side of the connecting plate (24).

9. An electric linear actuator motor according to claim 8, characterized in that: The controller (7) is located above the gearbox (3).

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