阅读说明：本技术 低流阻配流盘 (Low flow resistance valve plate ) 是由 朱日明 党建毅 高魏磊 于 2020-05-22 设计创作，主要内容包括：本发明属于柱塞泵技术领域,尤其涉及一种低流阻配流盘。本发明针对现有技术中加强筋对液压介质流阻较大的问题,提供一种低流阻配流盘,包括配流盘主体,所述配流盘主体上设有贯通配流盘主体的液压介质吸入孔和液压介质排出孔,位于配流盘主体外侧的液压介质通过液压介质吸入孔流至配流盘主体内侧,位于配流盘主体内侧的液压介质通过液压介质排出孔流至配流盘主体外侧,所述液压介质排出孔内还设有与配流盘主体固定连接的加强筋,所述加强筋靠近配流盘主体内侧一端的横截面积小于加强筋横截面积最大处的横截面积。本发明减小了加强筋靠近配流盘主体内侧一端的横截面积,保证对配流盘主体加强强度的同时,减小了加强筋对液压介质的流阻。(The invention belongs to the technical field of plunger pumps, and particularly relates to a low-flow-resistance valve plate. The invention provides a low-flow-resistance port plate aiming at the problem that a reinforcing rib has larger flow resistance to a hydraulic medium in the prior art, which comprises a port plate main body, wherein the port plate main body is provided with a hydraulic medium suction hole and a hydraulic medium discharge hole which penetrate through the port plate main body, the hydraulic medium positioned on the outer side of the port plate main body flows to the inner side of the port plate main body through the hydraulic medium suction hole, the hydraulic medium positioned on the inner side of the port plate main body flows to the outer side of the port plate main body through the hydraulic medium discharge hole, the hydraulic medium discharge hole is also internally provided with a reinforcing rib fixedly connected with the port plate main body, and the cross section area of one end of the reinforcing rib, close to the inner side of the port plate main body, is smaller than that of the. The cross-sectional area of the reinforcing rib close to one end of the inner side of the valve plate main body is reduced, the strength of the valve plate main body is enhanced, and the flow resistance of the reinforcing rib to a hydraulic medium is reduced.)

1. The utility model provides a low flow resistance valve plate, includes valve plate main part (1), be equipped with hydraulic medium suction hole (2) and the hydraulic medium discharge hole (3) that link up valve plate main part (1) on valve plate main part (1), still be equipped with in hydraulic medium discharge hole (3) with valve plate main part (1) fixed connection's strengthening rib (4), its characterized in that: the cross sectional area of the part of the reinforcing rib (4) facing the outflow direction of the hydraulic medium is smaller than the cross sectional area of the reinforcing rib (4) at the outflow position of the hydraulic medium.

2. The low flow resistance port plate of claim 1, wherein: the reinforcing rib (4) comprises a reinforcing part (41) and a drag reducing part (42) which are fixedly connected, the drag reducing part (42) is closer to the inner side of the valve plate main body (1) than the reinforcing part (41), and the cross sectional area of the drag reducing part (42) is gradually reduced from one end close to the reinforcing part (41) to the other end.

3. The low flow resistance port plate of claim 2, wherein: the surface of the resistance reducing part (42) is an arc surface or the surface of the resistance reducing part (42) is composed of a plurality of planes or curved surfaces which are connected in sequence.

4. The low flow resistance port plate of claim 1, wherein: the position of the reinforcing rib (4) facing the outflow direction of the hydraulic medium comprises a first combined edge (5) and a second combined edge (6) which are connected with each other, and the reinforcing rib further comprises a reference line (7) parallel to the outflow direction of the hydraulic medium, wherein the reference line (7) passes through a connection point of the first combined edge (5) and the second combined edge (6), and a first rectangular boundary frame (8) of the first combined edge (5) and a second rectangular boundary frame (9) of the second combined edge (6) are respectively positioned on two sides of the reference line (7).

5. The low flow resistance port plate of claim 4, wherein: the included angle theta between the long axis of the directional bounding box of the first rectangular bounding box (8) and the reference line (7) is 5-85 degrees.