Constant pressure full-balanced type floating side plate

A floating side plate, balanced technology, applied in rotary piston/oscillating piston pump components, machines/engines, pump components, etc., can solve the problem that the gear oil pump cannot reach the service life and effect, and reduce the mechanical efficiency of the gear oil pump , the formation and maintenance of friction pairs are difficult to achieve the effect of reducing unit energy consumption, high reliability, and improving the formation of friction pairs
CN101571123BActive Publication Date: 2013-04-03HEFEI CHANGYUAN HYDRAULICS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI CHANGYUAN HYDRAULICS
Publication Date
2013-04-03

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Abstract

The invention discloses a constant pressure full-balanced type floating side plate, the back of which is separated into a high pressure side and a low pressure side by a sealing ring groove. The floating side plate is characterized in that the surface of the high pressure side at the back of the side plate is provided with a pressure equalizing groove; a pressure guide groove which is used for leading high pressure oil at the back of the side plate into a low pressure area of a gear oil pump and is communicated with the pressure equalizing groove is arranged at a low pressure area of the circumference surface of the side plate along the axial direction; the periphery outside the front of the side plate is a right-angle form without chamfer angle. The invention can effectively improve the performance and the reliability of the gear oil pump and prolong the service life thereof.
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Description

technical field

[0001] The invention relates to a side plate of a gear oil pump, more specifically a high-pressure, high-speed, high-impact hydraulic gear oil pump side plate used as a power element of a hydraulic system. Background technique

[0002] As the power component of the hydraulic system, the gear oil pump is widely used in the hydraulic system of construction machinery such as forklifts, loaders, excavators, and cranes. Because of its simple structure, small size, light weight, strong self-priming ability, and insensitivity to oil pollution, it is widely used in the field of hydraulic technology, especially in the construction machinery industry. However, the unbalanced radial hydraulic pressure, short bearing life, and low overall efficiency seriously restrict the development and wider promotion of gear oil pumps. With the wide application and improvement of hydraulic technology, energy saving and environmental protection will be the mainstream design concept of...

Claims

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