A multi-turn electric actuator force amplification and reduction mechanism

Abstract

This utility model discloses a multi-turn electric actuator force amplification and reduction mechanism, including a housing, an input shaft, and an output shaft. A gear ring is fixed on the inner wall of the housing, and a turntable is rotatably connected to the bottom of the housing via a bearing. Compared with the prior art, this utility model adopts the meshing transmission of a first gear and a second gear, and the meshing of the second gear with the fixed gear ring, forming a planetary gear reduction structure. Compared with the sliding friction of worm gears, the rolling friction of gears significantly reduces energy loss, and the transmission efficiency can be increased to over 85%. At the same time, lubricating oil is circulated through oil pipes to ensure sufficient lubrication of the gear meshing surfaces and bearings, reducing wear and lowering temperature rise. It is suitable for high-frequency continuous operation scenarios, significantly reducing energy consumption and maintenance costs while improving transmission efficiency and torque output. It is suitable for high-precision and high-reliability execution control scenarios in industrial automation.

Description

Technical Field

[0001] This utility model relates to the field of electric actuator technology, and in particular to a multi-turn electric actuator force amplification and deceleration mechanism. Background Technology

[0002] An electric actuator is a drive device that converts electrical energy into mechanical energy. It is widely used in industrial automation systems to control the opening, closing, or regulation of equipment such as valves, dampers, and gates. It receives control signals (such as 4-20mA current, 0-10V voltage, or digital signals) to drive mechanical parts to produce linear, rotary, or multi-turn motions, thereby achieving precise control of parameters such as fluid flow, pressure, and flow rate.

[0003] The speed reduction and force amplification device is one of the core components of an electric actuator. Its function is to optimize the output characteristics of the motor through mechanical structure to meet the industrial requirements for high torque, high precision, and stability. The principle of existing speed reduction and force amplification devices is mostly based on worm gear transmission. However, the sliding friction transmission characteristics of worm gears result in an efficiency that is generally less than 70% (single-stage transmission efficiency is only 50-70%). Furthermore, in continuous operation scenarios (such as automated production lines), the high friction loss of worm gears will significantly increase energy consumption, which has certain shortcomings. To address these issues, we propose a multi-turn electric actuator force amplification and speed reduction mechanism. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a multi-rotation electric actuator force amplification and deceleration mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-turn electric actuator force amplification and reduction mechanism includes a housing, an input shaft, and an output shaft. A gear ring is fixed on the inner wall of the housing. A turntable is rotatably connected to the bottom of the housing via a bearing. Oil pipes are provided at both ends of the top of the housing. A support frame is fixed to the top of the housing. The input shaft is mounted on the support frame and inserted into the interior of the housing and connected to a first gear. A rotating shaft is rotatably connected to the top of the turntable, and a second gear is fixedly sleeved on the rotating shaft. The output shaft is mounted on the bottom of the turntable.

[0007] Preferably, a sealing ring is fitted onto the turntable, and the sealing ring is located between the turntable and the housing.

[0008] Preferably, both oil pipes are connected to oil pipelines, and the oil pipes are used to transport and recover lubricating oil.

[0009] Preferably, the number of the rotating shafts is three sets, and the three sets of rotating shafts are arranged in a circular array on the turntable.

[0010] Preferably, the first gear and the second gear are meshing drives, and the second gear and the gear ring are meshing drives.

[0011] Preferably, a first bushing is installed on the input shaft, and the input shaft is connected to the electric actuator through the first bushing. A second bushing is installed on the output shaft, and the output shaft is connected to the actuator through the second bushing.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention employs a planetary gear reduction structure formed by the meshing transmission of the first and second gears, and the meshing of the second gear with a fixed gear ring. Compared to the sliding friction of worm gears, the rolling friction of the gears significantly reduces energy loss, and the transmission efficiency can be increased to over 85%. The three sets of rotating shafts are arranged in a circumferential array, which evenly distributes the load to each second gear, avoiding stress concentration at a single point, extending the life of the first and second gears, and improving transmission stability. Lubricating oil is circulated through oil pipes to ensure sufficient lubrication of the gear meshing surfaces and bearings, reducing wear and lowering temperature rise. It is suitable for high-frequency continuous operation scenarios, significantly reducing energy consumption and maintenance costs while improving transmission efficiency and torque output. It is suitable for high-precision and high-reliability execution control scenarios in industrial automation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a multi-rotation electric actuator force-boosting and deceleration mechanism proposed in this utility model;

[0015] Figure 2 for Figure 1 Front sectional view;

[0016] Figure 3 for Figure 2 A schematic diagram showing the installation of the first and second gears within the housing.

[0017] In the diagram: 1 housing, 2 gear ring, 3 turntable, 4 sealing sleeve, 5 oil pipe, 6 support frame, 7 output shaft, 8 first bushing, 9 first gear, 10 rotating shaft, 11 second gear, 12 output shaft, 13 second bushing. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-3 A multi-turn electric actuator force-increasing and deceleration mechanism includes a housing 1, an input shaft 7, and an output shaft 12. A gear ring 2 is fixed on the inner wall of the housing 1. A turntable 3 is rotatably connected to the bottom of the housing 1 via a bearing. A sealing ring 4 is fitted on the turntable 3, located between the turntable 3 and the housing 1. Oil pipes 5 are provided at both ends of the top of the housing 1, and both sides of the oil pipes 5 are connected to oil supply pipelines. The oil pipes 5 are used to transport and recover lubricating oil. A support frame 6 is fixed on the top of the housing 1. The input shaft 7 is mounted on the support frame 6 and inserted into the interior of the housing 1, connected to a first gear 9. A rotating shaft 10 is rotatably connected to the top of the turntable 3. There are three sets of rotating shafts 10, which are arranged in a circular array on the turntable 3. A second gear 11 is fixedly fitted on the rotating shaft 10. The first gear 9 and the second gear 11 mesh with each other, and the second gear 11 meshes with the gear ring 2. The output shaft 12 is installed at the bottom of the turntable 3, and a second gear 11 is mounted on the input shaft 7. A first bushing 8 connects the input shaft 7 to the electric actuator. A second bushing 13 is mounted on the output shaft 12, connecting the output shaft 12 to the actuator. The system employs a planetary gear reduction structure through the meshing of the first and second gears, and the meshing of the second gear with a fixed gear ring. Compared to the sliding friction of worm gears, the rolling friction of the gears significantly reduces energy loss, increasing transmission efficiency to over 85%. Three sets of rotating shafts are arranged in a circumferential array, evenly distributing the load to each second gear, avoiding stress concentration at single points, extending the lifespan of the first and second gears, and improving transmission stability. Lubricating oil is circulated through oil pipes to ensure sufficient lubrication of the gear meshing surfaces and bearings, reducing wear and temperature rise. This system is suitable for high-frequency continuous operation scenarios, significantly reducing energy consumption and maintenance costs while improving transmission efficiency and torque output. It is suitable for high-precision, high-reliability execution control scenarios in industrial automation.

[0020] In use, the power of the electric actuator is input through the input shaft 7, which drives the first gear 9 to rotate at high speed. The first gear 9 drives the second gear 11 to rotate. Since the second gear 11 meshes with the fixed gear ring 2 at the same time, the reaction force generated by the meshing forces the turntable 3 to rotate at low speed around the center of the housing 1. The rotational motion of the turntable 3 is transmitted to the actuator through the output shaft 12 to output high torque and low speed power, realizing multi-stage reduction and torque amplification. The oil pipes 5 on both sides continuously deliver lubricating oil to the gear meshing area and recover excess oil pipes 5, reducing friction and heat dissipation, ensuring stable operation of the mechanism under long-term high load.

[0021] In summary, compared with existing technologies, this utility model employs the meshing transmission of the first and second gears, as well as the meshing of the second gear with a fixed gear ring, to form a planetary gear reduction structure. Compared with the sliding friction of worm gears, the rolling friction of gears significantly reduces energy loss, and the transmission efficiency can be increased to over 85%. The three sets of rotating shafts are arranged in a circumferential array, which evenly distributes the load to each second gear, avoiding stress concentration at a single point, extending the life of the first and second gears, and improving transmission stability. The lubricating oil is circulated through oil pipes to ensure sufficient lubrication of the gear meshing surfaces and bearings, reducing wear and lowering temperature rise. It is suitable for high-frequency continuous operation scenarios, significantly reducing energy consumption and maintenance costs while improving transmission efficiency and torque output. It is suitable for high-precision and high-reliability execution control scenarios in industrial automation.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-revolution electric actuator force boosting reduction mechanism comprising a housing (1), an input shaft (7) and an output shaft (12), characterized in that, A gear ring (2) is fixed on the inner wall of the housing (1). A turntable (3) is rotatably connected to the bottom of the housing (1) via a bearing. Oil pipes (5) are provided at both ends of the top of the housing (1). A support frame (6) is fixed on the top of the housing (1). An input shaft (7) is mounted on the support frame (6). The input shaft (7) is inserted into the interior of the housing (1) and connected to a first gear (9). A rotating shaft (10) is rotatably connected to the top of the turntable (3). A second gear (11) is fixedly sleeved on the rotating shaft (10). An output shaft (12) is mounted on the bottom of the turntable (3).

2. The multi-turn electric actuator force amplification and reduction mechanism according to claim 1, characterized in that, A sealing ring (4) is fitted onto the turntable (3), and the sealing ring (4) is located between the turntable (3) and the housing (1).

3. The multi-turn electric actuator force amplification and reduction mechanism according to claim 1, characterized in that, The oil pipes (5) on both sides are connected to the oil pipeline, and the oil pipes (5) are used to transport and recover lubricating oil.

4. The multi-turn electric actuator force amplification and deceleration mechanism according to claim 1, characterized in that, The number of the rotating shafts (10) is three sets, and the three sets of rotating shafts (10) are arranged in a circular array on the turntable (3).

5. The multi-turn electric actuator force amplification and reduction mechanism according to claim 1, characterized in that, The first gear (9) and the second gear (11) are meshing transmissions, and the second gear (11) and the gear ring (2) are meshing transmissions.

6. The multi-turn electric actuator force amplification and reduction mechanism according to claim 1, characterized in that, The input shaft (7) is equipped with a first bushing (8), and the input shaft (7) is connected to the electric actuator through the first bushing (8). The output shaft (12) is equipped with a second bushing (13), and the output shaft (12) is connected to the actuator through the second bushing (13).

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