Electronic actuator

Abstract

The invention discloses an electronic actuator. The electronic actuator comprises a lower shell and an upper shell, wherein an opening is formed in the top of the lower shell; the shape and the size of the upper shell are matched with the top of the opening of the lower shell, so that seal is formed when the upper shell and the lower shell are combined; the upper shell and the lower shell are combined to form a containing cavity located in the upper shell and the lower shell; a gear transmission mechanism is arranged in the containing cavity; a to-be-sealed cavity communicating the inside andoutside of the upper shell is arranged on the upper shell; and a sealing structure is arranged in the to-be-sealed cavity. The electronic actuator is compact in structure, and convenient in assemblingand debugging; later maintenance cost is greatly reduced, and durability is relatively higher; and high sealing requirements of the electronic actuator in a severe working environment for a long timeare met. In addition, the device is light in weight; installation stability of motors is improved; meanwhile, integrated multi-elastic-piece design is adopted, and problems that a traditional split type damping elastic piece is poor in matching performance and prone to loosening and the like are avoided; and damping effect is greatly improved.

Description

technical field [0001] The invention relates to the field of electronic actuators, in particular to an electronic actuator. Background technique [0002] Existing turbochargers usually use pneumatic actuators to ensure that the engine gets sufficient air supply in the low and medium speed range, so that it can adapt to the fuel supply increased by the turbocharger in the combustion chamber, Increase low-speed torque, improve fuel combustion utilization, and exhaust in high-speed range to avoid supercharger rotor overspeed or supercharged pressure, which will cause excessive combustion pressure in the cylinder and aggravate the mechanical load of the engine. That is to say, the turbocharger uses exhaust and purge valves, the focus is to improve the low-speed torque characteristics of the engine, while taking into account the performance indicators and reliability of the engine when it is running at high speed. [0003] The opening and closing of the pneumatic actuator is con...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the prior art, the object of the present invention is to provide an electronic actuator, which has a compact structure, is easy to assemble and debug, greatly reduces the maintenance cost in the later period, and has high durability at the same time, which can meet the needs of electronic actuators. The actuator has high sealing requirements in harsh working environments for a long time. In addition, it is light in weight. While improving the stability of the motor installation, it adopts an integrated multi-shrapnel design to avoid poor fit and easy loosening of the traditional split shock-absorbing shrapnel. problem, greatly improving the shock absorption effect

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