CN105971875A - 一种无油润滑两级式涡旋压缩机 - Google Patents
一种无油润滑两级式涡旋压缩机 Download PDFInfo
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Abstract
本发明提供公开了一种无油润滑两级式涡旋压缩机,静涡旋盘和动涡旋盘的涡旋齿都为单涡旋齿结构,相反面均分布有散热片,静涡旋盘和动涡旋盘的涡旋齿的齿顶加装固体自润滑摩擦副,托盘上安装有旋转式运动的小曲拐,小曲拐上设有自润滑式密封轴承,动涡旋盘在静涡旋盘和支架体之间做平面运动,主轴连接转向箱,动涡旋盘中心连接转向箱内的传动轴,动涡旋盘在传动轴的驱动下转动,气体依次通过左右两台压缩机。本发明的有益效果是增大压缩比,压缩机压缩腔内不含有润滑油,满足了食品医药领域对压缩机的要求。
Description
技术领域
本发明属于压缩机技术领域,涉及一种无油润滑两级式涡旋压缩机。
背景技术
目前,食品、医药等领域所用的空气输送用的压缩机必须具有以下条件:压缩机外形体积小,重量轻;排气量大;所输送气体不含润滑油。而目前大多数压缩机压缩腔内需要润滑油进行润滑,这样输送气体中就带有了微量润滑油。
现有技术中的有油润滑的涡旋压缩机存在着以下缺点:1)被压缩气体的压强不够,即压缩比不足;2)被压缩气体必须与润滑油接触,所输送的压缩气体中必然含有润滑油;3)增加压缩系统中的辅机,如增加油气分离器,系统庞大;4)压缩气体中所含有的润滑油凝结在压缩系统中的其他设备上,影响其正常工作。
发明内容
鉴于以上所述,本发明的目的在于提供一种无油润滑两级式涡旋压缩机,解决了现有的油润滑涡旋压缩机压缩比不足、压缩气体必须与润滑油接触,所输送的压缩气体中必然含有润滑油,不适合食品、医药等领域的问题。
本发明提供的技术方案如下:一种无油润滑涡旋压缩机,包括静涡旋盘和动涡旋盘,静涡旋盘和动涡旋盘成180度相对安装,静涡旋盘和动涡旋盘的涡旋齿都为单涡旋齿结构,静涡旋盘和动涡旋盘的涡旋齿的相反面均分布有散热片,托盘上安装有旋转式运动的小曲拐,小曲拐防止动涡旋盘自转,小曲拐上设有 自润滑式密封轴承,静涡旋盘通过螺栓固定在支架体上,动涡旋盘在静涡旋盘和支架体之间做平面运动,动涡旋盘中心连接传动轴,动涡旋盘在传动轴的驱动下转动,传动轴在主轴的驱动下转动。
进一步的,所述静涡旋盘和所述动涡旋盘的涡旋齿的齿顶加装固体自润滑摩擦副。
进一步的,所述固体自润滑摩擦副采用聚醚醚酮基复合材料制成。
进一步的,所述小曲拐包括置于托盘和支架体中间的曲轴,曲轴上设有轴承,曲轴两端分别安装在托盘和支架体上。
进一步的,所述小曲拐为圆柱形。
进一步的,所述轴承为自润滑轴承、或者是固体自润滑轴承、或者是封油轴承。
进一步的,无油润滑涡旋压缩机包括转向箱,所述转向箱为T系列锥齿轮转向箱,传动轴分别连接左右两动涡旋盘的中心。
进一步的,所述传动轴与所述主轴通过锥齿轮相连,以通过主轴驱动所述传动轴转动。
进一步的,所述散热片均匀分布在所述静涡旋盘和所述动涡旋盘的涡旋齿的相反面上。
进一步的,所述散热片为铜铝复合材料一体制成。
与现有技术相比,本发明的有益效果是压缩机压缩腔内不含有润滑油,增大压缩比,降低涡旋压缩机的排气温度,满足了食品医药领域对压缩机的要求。
附图说明
图1是本发明无油润滑涡旋压缩机结构示意图;
图2是本发明固体自润滑摩擦副示意图;
图3是本发明小曲拐示意图;
图4是本发明转向箱示意图。
图中,1.静涡旋盘,2.动涡旋盘,3.固体自润滑摩擦副,4.小曲拐,5.支架体,6.传动轴,7.转向箱,8.主轴,9.动涡旋盘,10.静涡旋盘,12.支架体,401.曲轴,402.小曲拐边缘。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合,下面将参考附图并结合实施例来详细说明本发明。
本发明无油润滑涡旋两级式压缩机,如图1、2所示:包括静涡旋盘1、10和动涡旋盘2、9,静涡旋盘1、10和动涡旋盘2、9分别成180度相对安装,静涡旋盘1、10和动涡旋盘2、9的涡旋齿都为单涡旋齿结构,静涡旋盘1、10和动涡旋盘2、9的涡旋齿的相反面均分布有散热片,具体地,散热片均匀分布在所述静涡旋盘1、10和所述动涡旋盘2、9的涡旋齿的相反面上,本实施例中,散热片为铜铝复合材料一体制成,以提高散热效果,具体地,所述散热片为铜铝复合材料采用冷锻或温锻工艺一体地形成在静涡旋盘1、10和所述动涡旋盘2、9的涡旋齿的相反面上,且冷锻或温锻的工艺温度为-10℃~500℃、压强为500至1000MPa,较佳地,温度为200℃、压强为800MPa。
静涡旋盘1、10和动涡旋盘2、9的涡旋齿的齿顶加装固体自润滑摩擦副3。固体自润滑摩擦副3采用聚醚醚酮基复合材料制成。
托盘上安装有旋转式运动的小曲拐4,小曲拐如图3所示,小曲拐4防止动涡旋盘2、9自转,小曲拐4上设有自润滑式密封轴承,静涡旋盘1、10通过螺栓分别固定在支架体5、12上,动涡旋盘2、9分别在静涡旋盘10和支架体5、12之间做平面运动,动涡旋盘2、9中心连接传动轴6,动涡旋盘9在传动轴6的驱动下转动。自润滑摩擦副3采用的自润滑材料是聚醚醚酮(PEEK)基复合材料。
请参阅图4,转向箱7为T系列锥齿轮转向箱,传动轴6两端分别连接左右两动涡旋盘,传动轴6中间和主轴8通过锥齿轮相连。所述小曲拐4包括曲轴401和402,小曲拐4为圆柱形,小曲拐401和402两端均设有轴承,小曲轴401和402的两端分别安装在托盘和支架体上。
本发明采用小曲拐4组成防自转机构,这样在防自转机构中的小曲拐4只有旋转式,而无往复式,因而容易实现无油润滑;此外本发明装置中的所有轴承都为自润滑轴承,或者是固体自润滑轴承,或者是封油轴承,无需外界润滑油润滑,可实现无油润滑,较好的满足了燃料电池发动机所需的大排气量、小外形尺寸的无油润滑涡旋压缩机。本发明实现了气体的双重压缩,增大压缩比,同时也实现了气体的清洁压缩,可应用对压缩机要求较高的燃料电池发动机场合;且结构简单,容易实现;气体压缩产生的热量可以轻松散出。能较大程度的降低摩擦副的损耗,而且可实现压缩腔内的无油润滑以及快速降低涡旋盘温度。以满足食品医药等领域对压缩机的要求。
与以往的油润滑涡旋压缩机相比,本发明的主要优点是:1)采用两级式布置,对气体进行二次压缩,增大压缩比;2)采用无油润滑可以省去油润滑 循环系统和油气分离器;3)采用小曲拐防自转机构后,动涡旋盘2、10、支架体5、12和小曲拐4的相对运动由原来十字滑块的往复运动变为旋转运动,对于十字滑块只能依靠精确的加工和自润滑材料来实现较小的摩擦,这就意味着较高的生产成本,同时也比较难以保证,而小曲拐防转机构的运动形式仅为旋转运动,旋转运动的小曲拐4当采用自润滑复合材料或封油轴承,很容易实现无油润滑,并且旋转运动大大降低了摩擦副的磨损;同时小曲拐防转机构所带来的惯性力也能被完全平衡,小曲拐4的运动模式与主轴6的运动模式完全相同,小曲拐4还可分担部分动涡旋盘2、9的离心惯性力,改善动涡旋盘2、9的惯性力分布,有利于延长传动轴6和主轴8的寿命、增加动涡旋盘2、9受力的平稳性;4)在静涡旋盘1、10和动涡旋盘2、9和支架体5、12的结构设计,在以往有油润滑的涡旋压缩机中,动、静涡旋盘之间和动涡旋与支架体之间依靠润滑油润滑来实现相对滑动运动;由于动静涡旋盘和支架体都不是自润滑材料,本发明在相对滑动处增加了固体自润滑摩擦副3,安装了自润滑材料,选用具用较低摩擦系数和较高耐磨损性能的自润滑材料聚醚醚酮(PEEK)基复合材料来实现齿顶密封摩擦副,以此来替代油润滑,这种自润滑材料即能保证相对滑动的顺利进行,又能保证对被压缩气体的密封。同样能够保证具有较小的摩擦功耗和较小的工件磨损,不产生过高的温升,不会引起过大的振动和噪声。
以上所述仅是对本发明的较佳实施方式而已,并非对本发明作任何形式上的限制,凡是依据本发明的技术实质对以上实施方式所做的任何简单修改,等同变化与修饰,均属于本发明技术方案的范围内。
Claims (10)
1.一种无油润滑涡旋压缩机,其特征在于:包括静涡旋盘(1、10)和动涡旋盘(2、9),静涡旋盘(1、10)和动涡旋盘(2、9)成180度相对安装,静涡旋盘(110)和动涡旋盘(2、9)的涡旋齿都为单涡旋齿结构,静涡旋盘(1、10)和动涡旋盘(2、9)的涡旋齿的相反面均分布有散热片,托盘上安装有旋转式运动的小曲拐(4),小曲拐(4)用以防止动涡旋盘(2、9)自转,小曲拐(4)上设有自润滑式密封轴承,静涡旋盘(1、10)通过螺栓固定在支架体(5、12)上,动涡旋盘(2、9)在静涡旋盘(1、10)和支架体(5、12)之间做平面运动,动涡旋盘(2、9)中心连接传动轴(6),动涡旋盘(2、9)在传动轴(6)的驱动下转动,传动轴(6)在主轴(8)的驱动下转动。
2.根据权利要求1所述的无油润滑涡旋两级式压缩机,其特征在于:所述静涡旋盘(1、10)和所述动涡旋盘(2、9)的涡旋齿的齿顶加装固体自润滑摩擦副(3)。
3.根据权利要求2所述的无油润滑涡旋两级式压缩机,其特征在于:所述固体自润滑摩擦副(3)采用聚醚醚酮基复合材料制成。
4.根据权利要求1所述的无油润滑两级式涡旋压缩机,其特征在于:所述小曲拐(4)包括置于托盘和支架体中间的曲轴(401、402),曲轴(401、402)上设有轴承,曲轴(401、402)两端分别安装在托盘和支架体上。
5.根据权利要求4所述的无油润滑两级式涡旋压缩机,其特征在于:所述小曲拐(4)为圆柱形。
6.根据权利要求4所述的无油润滑两级式涡旋压缩机,其特征在于:所述轴承为自润滑轴承、或者是固体自润滑轴承、或者是封油轴承。
7.根据权利要求1所述的无油润滑两级式涡旋压缩机,其特征在于:包括转向箱(7),所述转向箱(7)为T系列锥齿轮转向箱,传动轴分别连接左右两动涡旋盘的中心。
8.根据权利要求1所述的无油润滑两级式涡旋压缩机,其特征在于:所述传动轴(6)与所述主轴(8)通过锥齿轮相连,以通过主轴(8)驱动所述传动轴(6)转动。
9.根据权利要求1所述的无油润滑两级式涡旋压缩机,其特征在于:所述散热片均匀分布在所述静涡旋盘(1、10)和所述动涡旋盘(2、9)的涡旋齿的相反面上。
10.根据权利要求9所述的无油润滑两级式涡旋压缩机,其特征在于:所述散热片为铜铝复合材料一体制成。
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CN109882408A (zh) * | 2019-03-15 | 2019-06-14 | 江西捷控新能源科技有限公司 | 一种二级压缩新能源无油涡旋空压机 |
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