Inclined disc plunger type hydraulic transformer adopting static pressure supporting
A technology of hydraulic transformer and static pressure support, which is applied to components of pumping devices for elastic fluids, machines/engines, variable displacement pump components, etc., and can solve dynamic response and low efficiency, large adjustment force, and large inertia and other issues to achieve the effect of improving dynamic performance and efficiency, improving dynamic performance, and reducing model coefficients
Pending Publication Date: 2019-02-22
XUZHOU UNIV OF TECH
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Problems solved by technology
Because this kind of transformer mechanically connects the hydraulic pump and the motor, it has a large volume and weight, requires a relatively large adjustment force, high cost, and low efficiency, which affects its application.
[0004] Since the new hydraulic transformer is composed of a hydraulic pump and a hydraulic motor, three flow distribution grooves are processed on the distribution plate, and the transformation ratio is controlled by the rotation of the flow distribution plate, so how to realize the flow distribution without throttling loss is a need At the same time, the new hydraulic transformer still has the problems of large control structure, large inertia, low dynamic response and low efficiency
Method used
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Embodiment Construction
[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] like figure 1 Shown is a swash plate plunger type hydraulic transformer with static pressure support, including a housing 2, a left end cover 1, a swash plate type plunger pump mechanism, a flow distribution plate 9, a variable pressure control shaft 10 and a right end cover 11.
[0023] like figure 1 As shown, the swash plate type plunger pump mechanism includes a cylinder body 8, a swash plate 3, a ball return pressure plate 5, a return spring 7, N plungers 6 and a corresponding number of sliding shoes 4, the left end of the cylinder body 8 There are N plunger holes evenly arranged on the peripheral side, the middle part of the left end of the cylinder body 8 is provided with a spring chamber I, one end of the plunger 6 is installed in the plunger hole, and the other end of the plunger 6 is installed on the swash plate through the corresponding sliding shoe 4...
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The invention discloses an inclined disc plunger type hydraulic transformer adopting static pressure supporting. The inclined disc plunger type hydraulic transformer comprises a shell, a left end cover, an inclined disc type plunger pump mechanism, a distribution disc, a variable pressure control shaft and a right end cover; the left end cover and the right end cover are fixed to the shell throughscrews, a static pressure annular oil groove is machined in the shell, and static pressure oil is led into the static pressure annular oil groove to form static pressure supporting; and an annular groove is designed in the right step face of the variable pressure control shaft and is connected with an oil inlet to form static pressure supporting. A return spring acts the pre-pressing effect, oneend enables a cylinder body to be pressed against an inclined disc, the other end enables a ball to return and the inclined disc to be pressed against a piston shoe, and return motion of a plunger isachieved. The inclined disc plunger type hydraulic transformer adopting static pressure supporting adopts static pressure supporting, the sliding friction force is reduced, the driving torque of the variable pressure control shaft is reduced, and the transmission efficiency is improved.
Description
technical field [0001] The invention relates to a swash plate plunger type hydraulic transformer adopting static pressure support, which belongs to the technology of hydraulic components in the machinery industry. Background technique [0002] With the development of human society, energy consumption is increasing, environmental pollution is becoming more and more serious, smog has been developed and affects human life and health. Energy-saving technology has become the focus of research in various industries. The low efficiency of the hydraulic transmission system has become the bottleneck of the application of the professional hydraulic transmission system. The secondary adjustment technology based on pressure common rail improves the flexibility and efficiency of the hydraulic system. The secondary adjustment principle has many advantages, but it can only drive rotating loads. In order to realize the volume control of linear load, hydraulic components such as hydraulic ...
Claims
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IPC IPC(8): F15B11/08F04B1/12F04B53/16F04B53/18
CPCF04B1/12F04B1/122F15B11/08
Inventor 秦宏宇刘成强戴青松黄传辉陈跃李志
Owner XUZHOU UNIV OF TECH