Stroking mechanism of plunger pump
A variable mechanism and plunger pump technology, applied in the variable mechanism of plunger pump, plunger pump field, can solve the problem of long response time, poor response performance of the output flow of plunger pump, etc., to achieve short response time, increase response The effect of high performance and high practical value
Active Publication Date: 2012-07-18
ZHEJIANG STRONGER HYDRAULIC
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Problems solved by technology
It makes its response time long. Similarly, it also has the problem of poor response performance of the output flow of the plunger pump.
Method used
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Embodiment Construction
[0032] Such as figure 1 and figure 2 As shown, the variable mechanism of the plunger pump includes a swash plate 1, a sliding shoe 2, a plunger and a cylinder 5, and the like.
[0033] There is oil in the cylinder barrel 5 . Both sides of the swash plate 1 have a protruding and arc-shaped contact portion 1a, and the contact portion 1a abuts against the plunger pump. There are two sliding shoes 2, and these two sliding shoes 2 are respectively flexibly connected to the two ends of the swash plate 1. In this embodiment, the swash plate 1 has a spherical notch, and the sliding shoe 2 has a ball head. Or the spherical contact enables the shoe 2 to swing relative to the swash plate 1 without falling off from the swash plate 1.
[0034] Such as image 3 and Figure 4 As shown, the plunger is composed of a plunger one 3 and a plunger two 4, the plunger one 3 is cylindrical, and the plunger two 4 is columnar. One end of the plunger two 4 is connected to the above-mentioned slid...
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The invention provides a stroking mechanism of a plunger pump, which belongs to the technical field of machinery and solves the problem of the slow output flow response of the conventional plunger pump. The stroking mechanism of the plunger pump comprises a swash plate, piston shoes, a plunger, a cylinder and the like, wherein the two sides of the swash plate are provided with a protruded and arched contact part respectively; the number of the piston shoes is two and the two piston shoes are movably connected to the two ends of the swash plate respectively; one end of the cylinder is fixedly connected with the plunger pump; one end of the plunger is positioned in the cylinder, while the other end is connected with the piston shoes; and the plunger is provided with a transform mechanism which can change the movement speed of the plunger in the extension and retraction of the plunger. The stroking mechanism of the plunger pump has short response time and relatively higher application value, and speeds up the response of an output flow of the plunger pump.
Description
technical field [0001] The invention belongs to the technical field of machinery, and relates to a plunger pump, in particular to a variable displacement mechanism of the plunger pump. Background technique [0002] The plunger pump is one of the most important power components in the hydraulic field. The variable pump in the plunger pump is widely used in extrusion, forging, steel rolling and injection molding machinery. The output flow change of the variable pump is driven by the variable plunger. The disc swings to meet the requirements of different flow rates. The structural form of the variable mechanism directly affects the response characteristics of the output flow of the variable piston pump. [0003] There are three main types of variable actuators for hydraulic plunger pumps: mechanical mechanisms, hydraulic servo mechanisms, and hydraulic cylinders. The mechanical variable mechanism is a variable way to directly change the inclination angle of the swash plate wi...
Claims
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IPC IPC(8): F04B1/26
Inventor 李春光刘汉斌梁昌霞苏宗义
Owner ZHEJIANG STRONGER HYDRAULIC