Rear cover of hydraulic motor shell

Abstract

The invention relates to a rear cover of a hydraulic motor shell. The rear cover comprises a rear cover body, the side wall of the rear cover body extends outwards in the radial direction to form a cover body, a central hole is formed in the center of the rear end face of the rear cover body, a stepped hole is formed in the center of the front end face of the rear cover body, protrusions are uniformly distributed on the rear end face of the cover body in the circumferential direction, oil holes are formed in the front end face of the cover body, first oil ports are formed in the inner walls ofthe protrusions, second oil ports are formed in the rear end face of the cover body, and the second oil ports are in communication with the first oil ports; lightening holes and mounting holes are uniformly distributed in the front end face of the cover body in the circumferential direction, each lightening hole is located between two adjacent oil holes, and reinforcing ribs are arranged in the lightening holes; and the edge of the front end face of the cover body is provided with an annular groove coaxial with the central hole. According to the rear cover of the hydraulic motor shell, the structure is optimized and improved, the machining cost is low, air holes or other defects in the casting process are avoided, the product quality is improved, the machining is convenient, the overall precision is high, the assembly is facilitated, the overall weight is light, the strength is high, and the service life is long.

Description

technical field [0001] The invention relates to a hydraulic motor, in particular to a hydraulic motor casing rear cover. Background technique [0002] The hydraulic motor is an actuator of the hydraulic system, which converts the hydraulic pressure energy provided by the hydraulic pump into the mechanical energy (torque and speed) of its output shaft. Liquids are media that transmit force and motion. Hydraulic motors, also known as oil motors, are mainly used in injection molding machinery, ships, hoists, construction machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, ship machinery, petrochemical, port machinery, etc. From the point of view of energy conversion, hydraulic pumps and hydraulic motors are reversible hydraulic components. Inputting working fluid to any hydraulic pump can make it a hydraulic motor; on the contrary, when the main shaft of the hydraulic motor is driven by the external When the torque is driven to...

AI Technical Summary

Problems solved by technology

Hydraulic motors can be divided into vane type, radial plunger type and axial plunger type according to the type. The traditional hydraulic motor has a thick side wall and a large weight. It is easy to produce pores and other defects during the casting process, which affects the quality. And it adopts an integrated structure, which increases the production cost and processing difficulty

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