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High performance spherical hydraulic motor

A hydraulic motor, high-performance technology, applied in the field of hydraulic motors, can solve the problems of poor sealing performance, low output torque, low specific power, etc., and achieve the effect of easy processing, low cost and large torque

Inactive Publication Date: 2010-12-08
NINGBO HOYEA MACHINERY MFG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The structure of the existing vane hydraulic motor is that the rotor is eccentrically placed in the cylinder body, and the radial direction of the vane is placed in the rotor at a certain angle with the radius of the rotor. When working, the vane is thrown out under the action of the spring or oil pressure to form a seal with the cylinder body. Cavity, this type of vane hydraulic motor is sealed by a contact line between the vane and the cylinder body, so the sealing performance is poor, the output torque is low, and there is a lot of friction between the vane, the rotor and the cylinder body during rotation, As a result, the overall wear of the vane hydraulic motor is fast, the life is short, and the efficiency is low
In addition, in order to ensure that the blades can safely enter and exit the rotor during rotation, the rotor must have a considerable diameter, which is bound to be large in size and low in specific power.

Method used

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Embodiment Construction

[0025] figure 1 a and figure 1 b shows the shape of the blade 3 and the sealing strip 4 of the present invention. The blade 3 is approximately semi-circular and has two pieces of the same one. A1 and B1 are parallel planes. The width of the blade 3 is image 3 b. The hollow ring of shell 1 has the same width, C1 is a cylinder with the center O1 and the same radius as the cylinder E3 of shell 1, D1 is a sphere with the center of O1 and the radius of the rotor 2 ball table C2, and E1 is a cylinder The surface, the E1 cylinder is centered on the axis of symmetry passing through the center of the sphere O1, and the radius is O1K1.

[0026] There are four sealing strips 4 in total, one of which is a cylindrical surface with the same radius as the cylinder surface E1 of the blade 3 on the upper side, and a plane on the lower side. The vertical distance between the center of the sphere O1 and the plane is half the thickness of the plate of the rotor 2, G1 It is a spherical surface with...

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Abstract

The invention discloses a high-performance spherical hydraulic motor, which comprises a casing, a rotor, two blades, four sealing strips, and two cushion blocks. all the sealing places of the motor are surface sealing, and the motor has the advantages of large displacement, high pressure and efficiency, large specific power, compact structure, easy machining, lower cost and long service life.

Description

Technical field [0001] The invention relates to a hydraulic motor, in particular to a new high-performance vane hydraulic motor. Background technique [0002] The existing vane hydraulic motor structure is that a rotor is eccentrically placed in the cylinder, and the vane is placed in the rotor at a certain angle to the radius of the rotor. The vanes are thrown out under the action of spring or oil pressure during operation to form a seal with the cylinder. Cavity, this type of vane hydraulic motor is sealed by a contact line between the vane and the cylinder body, so the sealing performance is poor, the output torque is low, and there is a lot of friction between the vane and the rotor and the cylinder body during rotation. As a result, the vane-type hydraulic motor wears quickly, has a short life, and has low efficiency. In addition, in order to ensure that the blades can safely enter and exit the rotor during rotation, the rotor must have a considerable diameter, which is bou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03C2/00F04C2/344F15B15/08
Inventor 陈行
Owner NINGBO HOYEA MACHINERY MFG