Improved Servo Control Oil Supply Device

Abstract

The invention discloses an improved servo control oil supply device. A spline transmission shaft is arranged in a pump body in a sleeving manner through an improved sliding bearing; a cycloid outer rotor and a cycloid inner rotor are meshed with each other; an oil containing cavity is arranged at one side of the cycloid outer rotor; an inner rotor spline is arranged in the cycloid inner rotor; an assembly process groove is formed in the outer side of the cycloid outer rotor; an inner transmission spline is arranged on the spline transmission shaft which penetrates through the cycloid inner rotor and is arranged together with the improved sliding bearing in a matching manner; a side board is tightly attached to the pump body; an improved peripheral positioning pin is made of a rubber material, penetrates through the side board and is inserted into a pump body positioning hole peripherally formed in the pump body; an oil through hole is formed in the spline transmission shaft for circulation, lubrication and heat dissipation of an internal oil path of the spline transmission shaft; an inner rotor positioning arc, an inner rotor left side positioning groove and an inner rotor right side positioning groove which are used for positioning are uniformly formed in the inner circumference of the cycloid inner rotor; meanwhile, as a sliding wear resistance layer is arranged in the sliding bearing, the service life of the sliding bearing is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of oil supply devices, in particular to an improved servo-controlled oil supply device. Background technique [0002] The servo control system is a feedback control system composed of hydraulic power components as the driving device. In this control system, the output can quickly and accurately reproduce the change law of the input, so it has a wide range of applications; while the hydraulic pump is The control power source of the system constantly supplies oil to the system according to the current system characteristics. During the servo control oil supply process, the oil supply device is required to have high volumetric efficiency, total efficiency and stability, and can operate at high speed and pressure. Work. However, the oil supply device currently used is not equipped with an assembly limit structure when the pump body and the spline drive shaft are assembled, which is easy to cause damage to the m...

AI Technical Summary

Problems solved by technology

However, the oil supply device currently used is not equipped with an assembly limit structure when the pump body and the spline drive shaft are assembled, which is easy to cause damage to the matching sealing end surface of the pump chamber. Due to the small matching clearance, it will start for the first time after being installed in the main engine. Mechanical damage occurred during the test or serious leakage occurred in the later use; at the same time, the oil supply device has long-term mechanical damage during operation, that is, when the sliding bearing is subjected to radial unbalanced forces from different directions in the high-pressure oil area, It is easy to cause the point contact force between the spline drive shaft and the sliding bearing, and the point contact force causes some parts of the spline drive shaft and the slide bearing to wear seriously, and other parts are brand new, and the spline drive shaft has to be replaced when it is used again and sliding bearings, which increase the cost of equipment to a certain extent; the connection between the pump body and the side plate is usually inserted with metal hard pins, and metal hard pins are not conducive to processing, installation and positioning, and subsequent maintenance and disassembly, and the installation resistance is large. After the oil device is assembled, the metal hard pin cannot buckle the side plate to position the side plate, which will cause the side plate to fall off during the assembly process, which will affect the state and positioning of the oil supply device when it is installed in the main engine. Assembly accuracy, resulting in incomplete fit when loaded into the host, mechanical damage and leakage caused by abnormal installation

In addition, the oil circuit inside the spline drive shaft is not circulated smoothly due to radial force, which affects the internal lubrication and heat dissipation of the spline drive shaft, which in turn causes the internal temperature of the pump body to rise, and finally leads to the locking of the spline drive shaft and sliding bearings mechanical damage

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