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Cycloid hydraulic motor output shaft and machining method thereof

A cycloid hydraulic motor and output shaft technology, applied in metal processing equipment, shafts, manufacturing tools, etc., can solve problems such as the unfavorable radial bearing capacity of the output shaft, and achieve the goal of ensuring lubrication and sealing, improving work efficiency and reducing manufacturing costs. Effect

Active Publication Date: 2014-03-26
ZHENJIANG DALI HYDRAULIC MOTOR
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  • Abstract
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AI Technical Summary

Problems solved by technology

In order to ensure the lubrication of the shaft distribution valve and form an ideal distribution oil film and a reliable seal, the output shaft is provided with a circumferential annular oil groove, but this structure of the oil groove is not conducive to the radial bearing capacity of the output shaft

Method used

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  • Cycloid hydraulic motor output shaft and machining method thereof
  • Cycloid hydraulic motor output shaft and machining method thereof
  • Cycloid hydraulic motor output shaft and machining method thereof

Examples

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Embodiment 1

[0025] The cycloidal hydraulic motor of the present embodiment is as figure 1 Shown, where the output shaft 1 is as figure 2 As shown, the main shaft body is composed of a large-diameter section 1-2 located in the cycloidal hydraulic motor casing 10 after assembly and a small-diameter section 1-1 protruding from the casing. The small-diameter section 1-1 is formed with a keyway, so that power and motion can be transmitted through the key connection. The inner hole of the large-diameter section 1-2 has an internal spline meshing structure for transmission with the hydraulic motor linkage shaft 22, and the two ends of the outer circular surface have front and rear necking sections for respectively installing front and rear needle roller bearings 22 and 20, Adjacent to the front necking section, there is a dynamic cooperation part 1-2-1 with the inner hole of the body shell 10 between the front and rear necking sections. There are techniques that are basically the same and wil...

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Abstract

The invention relates to a cycloid hydraulic motor output shaft and a machining method thereof, which belongs to the technical field of mechanical transmission. The main body of the output shaft comprises an large-diameter section located in a cycloid hydraulic motor casing and a small-diameter section extending out of the casing after being assembled; a structure which is in transmission with and meshed with a hydraulic motor linkage shaft is arranged in an inner hole of the large-diameter section; a movable matching part for the inner hole of the casing is arranged on the surface of the external circumference of the large-diameter section; the movable matching part is provided with two or more sections of circumferential discontinuous oil grooves; the groove bottom of each discontinuous oil groove comprises eccentric arc sections of which centers of circle deviate a process eccentricity,and the center of the excircle of the movable matching part deviates a process eccentricity; the radius of each eccentric arc section is greater than that of the excircle of the movable matching part. By adopting the machining method, not only are improvement on working efficiency and reduction of manufacturing cost remarkably facilitated, but also an oil film is better formed, radial force bearing capacity is enhanced, and lubrication and sealing are ensured.

Description

technical field [0001] The invention relates to an output shaft, in particular to an output shaft of a cycloidal hydraulic motor, and also relates to a processing method thereof, which belongs to the technical field of mechanical transmission. Background technique [0002] The cycloidal hydraulic motor is a low-speed high-torque motor, which has the advantages of small size, high unit power density, high efficiency, and wide speed range, so it has been widely used, especially the shaft distribution hydraulic motor, due to its simple structure and low cost. It is very suitable for occasions with low pressure level and high cost performance requirements. In order to ensure the lubrication of the shaft distribution valve and form an ideal distribution oil film and a reliable seal, the output shaft is provided with a circumferential annular oil groove, but this structure of the oil groove is not conducive to the radial bearing capacity of the output shaft. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/02B23B1/00B24B19/02
Inventor 王志生张智敏盛玉川
Owner ZHENJIANG DALI HYDRAULIC MOTOR
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