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A method for improving the performance of a high-speed heavy-duty plunger pump and a new tapered cylinder device

A plunger pump and cylinder technology, applied in the field of methods and new tapered cylinder devices, can solve the problems of increasing the overall size and increasing the pump weight, and achieve the goal of reducing the line speed, reducing the weight of the cylinder, and reducing the diameter Effect

Active Publication Date: 2015-10-28
AVIC LIYUAN HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the traditional cylindrical cylinder, when the displacement of the pump is relatively large, the diameter of the valve plate will be relatively large, which not only increases the overall size of the pump, but also increases the weight of the pump

Method used

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  • A method for improving the performance of a high-speed heavy-duty plunger pump and a new tapered cylinder device
  • A method for improving the performance of a high-speed heavy-duty plunger pump and a new tapered cylinder device

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention.

[0024] Example. A method for improving the performance of a high-speed heavy-duty plunger pump, which is characterized in that: the axis of the main shaft of the cylinder and the axis of the plunger are set at an angle α, and the centerline of the oil suction and discharge holes on the cylinder is interposed with the axis of the main shaft. The angle β is set to increase the working speed and displacement of the plunger pump; the range of the included angle α is controlled at 3-8°, and the range of the included angle β is controlled at 2-5°; and the included angle β is smaller than the included angle α; The outer wall of the cylinder is tapered to reduce the diameter of the oil distribution plate, reduce the linear velocity of the movement of the distribution surface of the cylinder, make the ρν val...

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Abstract

The invention discloses a method for improving the performance of a high-speed and heavy-load plunger pump and a novel tapered cylinder device. The method includes the following steps: forming the angle alpha between an axial line of a spindle of a cylinder body and an axial line of a plunger, and forming the angle beta between a center line of each oil suction / drainage hole in the cylinder body and an axial line of the spindle, so as to improve the working rotating speed and displacement of the plunger pump. The novel tapered cylinder device includes a cylinder body (1) and a spindle hole (6) horizontally arranged at the center of the cylinder body (1), wherein a plurality of inclined plunger holes (3) are uniformly distributed on the periphery of the spindle hole (6); an inclined oil suction / drainage hole is communicated with one end of each plunger hole (3), and a copper bush (2) is arranged at the other end of each plunger hole (3). According to the invention, under the premise that the volume and weight of the high-speed and heavy-load plunger pump are basically unchanged, the displacement, rotating speed and working reliability are greatly improved, besides, noise reduction is realized, the copper bushes are prevented from falling off, and the service life of the high-speed and heavy-load plunger pump is improved.

Description

technical field [0001] The invention relates to the field of key friction pairs of a plunger pump, in particular to a method for improving the performance of a high-speed and heavy-duty plunger pump and a novel tapered cylinder device. Background technique [0002] Axial piston pumps have been widely used in the field of fluid transmission due to their unique advantages such as compact structure, high power density, and long life. With the continuous development of hydraulic transmission and control technology, axial piston pumps are developing in the direction of high pressure, high speed and large displacement. [0003] With the change of the global environment, human beings pay more and more attention to environmental protection issues, and require all kinds of products to be able to realize the functions of energy saving and environmental protection. As the core power component of the entire hydraulic transmission system, the hydraulic pump has received more and more at...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/16
Inventor 陆仕舒代雄滕生磊王祥罗娜史进武
Owner AVIC LIYUAN HYDRAULIC
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