A swash plate type axial piston pump or motor pressing device
An axial piston pump and compression device technology, applied in the field of hydraulic pump or motor device, can solve the problems of complicated design of return disc, and achieve the effect of simple structure, fast dynamic response speed and reduction of compression force
Active Publication Date: 2017-01-25
ANHUI UNIV OF SCI & TECH
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Problems solved by technology
Using the center-loaded spring method, the design of the return plate is relatively complicated, and it is easy to interfere with other parts
Method used
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[0035] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0036] See Figure 1 to Figure 5 As shown, the swash plate type axial piston pump or motor pressing device according to the embodiment of the present invention includes a swash plate 1 and a sliding shoe 2, wherein the top surface of the swash plate 1 is an inclined surface, and the bottom surface of the sliding shoe 2 is provided with an ou...
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The invention provides a swash plate type axial plunger pump or motor pressing device and relates to the field of hydraulic pumps or motor devices in hydraulic machinery. The swash plate type axial plunger pump or motor pressing device comprises a swash plate, sliding shoes, cylinders, compression rings, compression springs and retainer plates, wherein the top surface of the swash plate is oblique, each cylinder is provided with an outward protruding annular check block, each compression ring is provided with a spring cavity, the compression springs are arranged in the spring cavities of the compression rings and connected with the annular check blocks of the cylinders, the retainer plates are cylindrical, the top surface of each retainer plate is connected with the bottom surface of the corresponding compression ring, and the bottom surface of each retainer plate presses an outward protruding annular check block of the corresponding sliding shoe. By the adoption of the swash plate type axial plunger pump or motor pressing device, fatigue breakdown of the compression springs caused by reciprocating linear movement is avoided, and compressing force required by the compression springs is effectively reduced on the premise that the pretightening force of a sliding shoe pair and a port plate pair is unchanged. The swash plate type axial plunger pump or motor pressing device is simple in structure and practical.
Description
Technical field [0001] The invention relates to the technical field of hydraulic pumps or motor devices in hydraulic machinery, and in particular to a swash plate type axial piston pump or motor compression device. Background technique [0002] In hydraulic machinery, the hydraulic pump or motor is the heart of the hydraulic device. In theory, the hydraulic pump and the motor can be replaced with each other, but there are partial differences. Therefore, the description of the present invention only discusses the compression device of the pump. The design of the motor is basically the same. [0003] The swash plate axial piston pump plug is a variable pump with high pressure, high speed, impact resistance and relatively high integration. The power is driven by the main shaft through involute splines to drive the rotor to rotate, and multiple plungers evenly distributed on the rotor pass The ball hinge and pressing plate press the sliding shoe of the plunger assembly on the friction...
Claims
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IPC IPC(8): F04B1/22F03C1/253
Inventor 邓海顺黄然王传礼黄坤何涛郑露
Owner ANHUI UNIV OF SCI & TECH