CN216241279U - High pressure high volumetric efficiency vane pump - Google Patents
High pressure high volumetric efficiency vane pump Download PDFInfo
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- CN216241279U CN216241279U CN202122780763.0U CN202122780763U CN216241279U CN 216241279 U CN216241279 U CN 216241279U CN 202122780763 U CN202122780763 U CN 202122780763U CN 216241279 U CN216241279 U CN 216241279U
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Abstract
Description
技术领域technical field
本实用新型属于机械行业中的液压元件,特别涉及一种高压高容积效率叶片泵。The utility model belongs to hydraulic components in the machinery industry, in particular to a high-pressure and high-volume-efficiency vane pump.
背景技术Background technique
目前汽车液压领域,工程液压机械使用的环境越来越恶劣,高温、高压工况越来越多,传统的做法就是将油泵排量增大,满足高压力下的流量输出,但是国家的环保减排政策对排放要求越来越严格,现有的高压叶片泵无法满足汽车领域的需求。At present, in the field of automotive hydraulics, the environment for construction hydraulic machinery is getting worse and worse, and there are more and more high temperature and high pressure working conditions. The traditional method is to increase the displacement of the oil pump to meet the flow output under high pressure, but the national environmental protection is reduced. Emission policies are becoming more and more strict with emission requirements, and the existing high-pressure vane pumps cannot meet the needs of the automotive field.
发明内容SUMMARY OF THE INVENTION
本实用新型的目的在于克服上述技术不足,提供一种结构简单,能够减排增效,可以降低能耗损失的高压高容积效率叶片泵。The purpose of the utility model is to overcome the above-mentioned technical deficiencies, and to provide a high-pressure and high-volume-efficiency vane pump with a simple structure, which can reduce emissions and increase efficiency and reduce energy loss.
本实用新型解决技术问题采用的技术方案是:高压高容积效率叶片泵包括泵体、泵盖,其特点是在侧板的端面上设有两个台阶式通油孔,通油孔为连通侧板与高压腔室二的孔道,侧板、泵盖、O型圈一、O型圈二之间形成高压腔室二。The technical scheme adopted by the utility model to solve the technical problem is as follows: the high-pressure and high-volume-efficiency vane pump comprises a pump body and a pump cover, and is characterized in that two stepped oil passage holes are arranged on the end face of the side plate, and the oil passage holes are the communication side. The high-pressure chamber two is formed between the plate and the hole of the high-pressure chamber two, the side plate, the pump cover, the first O-ring, and the second O-ring.
本实用新型的有益效果是:高压高容积效率叶片泵结构简单,能够满足环保减排的需求,在叶片泵设计排量减小的情况下,可以提高叶片泵的容积效率,降低了能耗损失,提高了油泵总体的工作效率。The beneficial effects of the utility model are as follows: the high-pressure and high-volume-efficiency vane pump has a simple structure, which can meet the requirements of environmental protection and emission reduction, and under the condition that the designed displacement of the vane pump is reduced, the volumetric efficiency of the vane pump can be improved, and the loss of energy consumption can be reduced , improve the overall working efficiency of the oil pump.
附图说明Description of drawings
以下结合附图以实施例具体说明。Embodiments are described in detail below with reference to the accompanying drawings.
图1是高压高容积叶片泵外部结构图。Figure 1 is an external structural diagram of a high-pressure high-volume vane pump.
图2是图1的剖视图。FIG. 2 is a cross-sectional view of FIG. 1 .
图3是图1去掉泵盖的结构图。FIG. 3 is a structural view of FIG. 1 with the pump cover removed.
图4是图1的A-A剖视图。FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1 .
图5是叶片泵侧板形状结构图。Fig. 5 is a structural view of the side plate of the vane pump.
图6是图2的工处放大图。FIG. 6 is an enlarged view of the work site of FIG. 2 .
图中,1-泵体;1-1-进油口;1-2-泵腔;1-3-出油口;2-泵盖;3-侧板;3-1-通油孔;4-压力板;5-定子;6-转子;7-叶片;8-O型圈一;9-O型圈二;10-O型圈三;11-O型圈四;12-高压腔室一;13-高压腔室二;14-轴;15-容积腔;16-O型圈五。In the figure, 1- pump body; 1-1- oil inlet; 1-2- pump cavity; 1-3- oil outlet; 2- pump cover; 3- side plate; 3-1- oil hole; 4 -Pressure plate; 5-stator; 6-rotor; 7-vane; 8-O-ring one; 9-O-ring two; 10-O-ring three; 11-O-ring four; 12-high pressure chamber one ; 13-high pressure chamber two; 14-shaft; 15-volume chamber; 16-O-ring five.
具体实施例specific embodiment
实施例,参照附图1~6,高压高容积效率叶片泵的泵盖2与泵体1之间通过螺栓连接并用O型圈五16密封,泵体1上分别设有进油口1-1和出油口1-3,泵体1的泵腔1-2内装有定子5,定子5上端的侧面装有侧板3,定子5下端的侧面装有压力板4。侧板3与泵盖2之间用O型圈一8和O型圈二9密封,在侧板3的端面上设有两个台阶式通油孔3-1,通油孔3-1为连通侧板3与高压腔二室13的通道,侧板3、泵盖2、O型圈一-8、O型圈二9之间形成高压腔室二室13。压力板4与泵体1的泵腔1-2之间用O形圈三10和O形圈四11密封,压力板4、泵体1、O型圈三10、O形圈四11之间形成高压腔室一室12。轴14通过滑动轴承连接一端装在泵盖2内,轴14的另一端通过滑动轴承连接装在泵体1上并用油封密封、轴14分别活动穿过侧板3和压力板4,轴14通过花键连接装有转子6,转子6的叶片槽内活动插装叶片7,定子5、转子6叶片7之间形成容积腔15。Embodiments, referring to Figures 1 to 6, the
高野高容积效率叶片泵的工作原理是;流体从进油口1-1,进入泵体1的泵腔1-2,驱动转子6旋转,叶片7跟随转子6同时旋转,并在转子6的槽内径向伸缩,使流体从出油口1-3排出至系统加压,加压后的流体从侧板3的通油孔3-1流入高压腔室二13,作用在侧板3的背面产生朝向转子6的轴向力,抵抗由定子5、转子6、叶片7构成的容积腔15内的流体产生的向外的轴向力,从而避免因侧板3的轴向变形,导致转子6端面与侧板3端面、压力板4端面间隙变大,造成容积效率降低。压力板4、泵体1、O型圈三10、O型圈四11形成的高压腔一12,高压流体在高压腔室一12内,作用在压力板4的端面,产生的轴向力通过压力板4的通油孔将压力板4、定子5、侧板3推向泵盖2侧,泵盖2与侧板3贴合,保证压力板4与定子5、定子5与侧板3的端面紧密贴合保证密封。高压腔室二13去与侧板3的受压面积小于高压腔室一12区域压力板4的受压面积,保证高压腔室一12区域产生的轴向力大于高压腔室二13区域产生的轴向力,保政侧板3与泵盖2贴合。高压腔室二13产生的轴向力达到一定值,侧板3会产生微量变形,填补定子5与转子6的轴向间隙,提高容积效率。The working principle of Takano high volumetric efficiency vane pump is: the fluid enters the pump chamber 1-2 of the
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