Abstract

The present invention relates to a hydraulic motor powered by fluid, which may be, for example, gas or air. The hydraulic motor of the present invention comprises: a housing having a fluid inflow passage and a fluid outflow passage formed therein; a cylinder group mounted in the housing in the lengthwise direction; a piston performing a linear motion in the housing; a screw rod rotating in response to the linear motion of the piston; a hollow conversion valve unit that changes the moving direction of fluid based on the linear movement direction of the piston; and a gear unit selectively rotating together according to the rotation of the screw rod. Fluid space is formed on the front and rear sides of the housing in the lengthwise direction to fluidically communicate with the inside of the housing, and the fluid space on the front side of the housing and the fluid space on the rear side of the housing are configured to fluidically communicate with each cylinder in the cylinder group. The hydraulic motor according to the present invention can be powered by fluid, such as gas or air, without supply of separate electric power.

IPC Classes  ?

• F04B 27/12 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having plural sets of cylinders or pistons
• F04B 27/10 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
• F04B 39/08 - Actuation of distribution members
• B24B 23/02 - Portable grinding machines, e.g. hand-guidedAccessories therefor with rotating grinding toolsAccessories therefor
• F04B 15/08 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points

Abstract

A ball joint integrated knuckle and an assembling method thereof is provided. The ball joint integrated knuckle includes: a knuckle integrating a housing formed with a first screw thread on its one side surface; and a ball joint having a thread seat formed with a second screw thread, wherein the ball joint is integrated into the knuckle by combining the first screw thread of the housing of the knuckle with the second screw thread of the thread seat of the ball joint. Thus, it is possible to easily attach/detach the ball joint with respect to the knuckle by combining/removing the ball joint using the first screw thread, formed in an inner circumferential surface of the housing integrally formed with the knuckle, and the second screw thread formed in an external circumferential surface of the thread seat. Also, according to the present invention, the ball joint is not manufactured as a finished product, but provided as kit. Thus, costs, which may incur when manufacturing the ball joint as the finished product, may be saved by assembling the ball joint to the housing integrally formed with the knuckle, and thereby manufacturing costs may be reduced.

IPC Classes  ?

• B62D 7/16 - Arrangement of linkage connections

Abstract

A ball joint integrated knuckle and an assembling method thereof is provided. The ball joint integrated knuckle includes: a knuckle integrating a housing formed with a first screw thread on its one side surface; and a ball joint having a thread seat formed with a second screw thread, wherein the ball joint is integrated into the knuckle by combining the first screw thread of the housing of the knuckle with the second screw thread of the thread seat of the ball joint. Thus, it is possible to easily attach/detach the ball joint with respect to the knuckle by combining/removing the ball joint using the first screw thread, formed in an inner circumferential surface of the housing integrally formed with the knuckle, and the second screw thread formed in an external circumferential surface of the thread seat. Also, according to the present invention, the ball joint is not manufactured as a finished product, but provided as kit. Thus, costs, which may incur when manufacturing the ball joint as the finished product, may be saved by assembling the ball joint to the housing integrally formed with the knuckle, and thereby manufacturing costs may be reduced.

IPC Classes  ?

• B62D 7/18 - Steering knucklesKing-pins