CN103026069B - 具有集成的限压阀的螺杆泵 - Google Patents
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- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010771 distillate fuel oil Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
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- 238000003780 insertion Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
- F04C2/165—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type having more than two rotary pistons with parallel axes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/02—Arrangements of bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details Of Reciprocating Pumps (AREA)
- Safety Valves (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
本发明公开一种具有泵壳体的螺杆泵,在泵壳体上形成用于安装泵的法兰段,并且具有集成的限压阀。根据本发明,在泵壳体的法兰段中的限压阀安装到这个泵壳体中。
Description
本发明涉及一种按照权利要求1的前序部分所述的具有集成的限压阀的螺杆泵。
螺杆泵通常是自抽吸的柱塞泵,优选地适合用于低压范围,并且以供给泵和排除泵的形式用于输送液体,用于输送重的和轻的燃料油、用于所有的润滑液体、废油和残油、以及油脂。此外,螺杆泵也可用作润滑油泵、密封油泵、调节油泵、液压油泵、冷却油泵和淬火油泵,以及用于发动机的燃油泵。
现有技术例如已公开这种类型的螺杆泵。这种泵具有三个螺杆,它们相互平行地安装在泵壳体中。其中,泵壳体形成螺杆室,三个螺杆的螺杆,或者轴段伸入到所述螺杆室中,并且与压力室流体连接。此外,在泵壳体中还形成进入通道,所述进入通道在螺杆室的一个轴向端部汇入到这个螺杆室中,并且形成排放通道,在形成压力室的情况下所述排放通道在另一轴向端部汇入到这个压力室中。
与螺杆室平行地将限压阀安装到泵壳体或者它的壳体壁中。所述限压阀与这些螺杆同轴延伸,并且通入到压力排出通道中。此外,限压阀与在泵壳体中形成的进入通道连接。
因此,当压力排放通道中的压力超过规定的数值时限压阀打开,并且将过压卸载到螺杆泵的吸入侧。这种做法防止泵超压负载。然而,将限压阀集成到泵壳体中要在规定的安装部位加强泵壳体和壳体壁,为的是能给限压阀制造容纳空间。这就造成增大泵壳体的外部尺寸,其中,通过在泵壳体上的附加的材料浇铸总体地也使泵变得更重。
面对这种已公开的现有技术本发明的任务是,提供这样一种具有集成的限压阀的螺杆泵,即能保持其外部尺寸紧凑,并且它相对于现有技术其结构更轻。
这个任务通过具有权利要求1特征的螺杆泵得以完成。本发明的其它有利的方案是从属权利要求的主题。
本发明的基本构思的基础是,为了安装集成的限压阀利用在泵壳体上已有的泵的功能和/或安装所需要的材料堆积。因此根据本发明规定,将限压阀安装在泵壳体的法兰段中。所述法兰段由于功能所致在泵壳体和壳体壁上已具有材料聚积。因此在泵壳体上不必设置附加的浇铸,这样,相对于没有限压阀的螺杆泵来说泵壳体的外部尺寸并没有增加。此外,具有如此集成的限压阀的螺杆泵的重量没有增加,或者只有少许增加。
优选地在根据本发明的螺杆泵中压力室也形成在泵壳体的法兰段中,其中,限压阀直接汇入到压力室中。这样,在压力室区域中的泵壳体的壁厚保持足够的大,以承受压力室中预期的压力,而不必在此附加地加强壁。
此外有利的是,将泵的法兰板成形在泵壳体的这样一个部位上,即这个法兰板像一条带一样包围着压力室。这样,附加地加强了压力室区域中的壳体壁。
下面借助一个优选的实施例,参考一个唯一的附图对本发有进行更加详细的说明。这个图示出了具有插入的螺柱和安装的(集成的)限压阀的根据本发明的螺杆泵的壳体的纵向截面图。
根据本发明的这个优选的实施例的螺杆泵的泵壳体1由一个用于将泵安装在另一未示出的结构部件上的法兰段2和一个螺杆壳体段4构成,所述螺杆壳体段4是一个与法兰段2分开的壳体部件,并且与法兰段2螺栓连接,敛缝(verstemmt),或者铆接。
压力室6形成在法兰段2中。所述压力室通过连接孔8与螺栓壳体段4内部的螺栓室10连接。此外,在连接孔8的轴向延长上在法兰段2中形成输入孔12,这个输入孔也汇入压力室6中,并且通入到法兰段2的与螺栓壳体段4对置的法兰式的外侧。在这个外侧上螺栓连接有泵盖14。在这个泵盖上也形成一个通孔16。这个通孔在轴向上与连接孔8和法兰段2的进入孔12对准。
螺杆20的柄18如此地插入到孔8、12、16中,即这个柄借助球轴承或者滚动轴承22可转动地支承在泵盖14的通孔16中。在法兰段2的进入孔12的区域中形成具有密封段24的螺杆柄18,所述密封段与法兰段2的进入孔12密封滑动啮合。最后螺杆20形成螺旋段26,所述螺旋段被容纳在螺杆壳体段4的螺杆室10中。其中,法兰段2中的压力室6相对于螺杆柄18是偏心形成的,也就是说,压力室6相对于螺杆柄18或在法兰段2中形成的连接孔8形成一种径向外移的段6a。螺杆泵的排出孔27汇入到这个径向错开的或者外移的段6a中。此外,法兰段2还具有在其上形成的环形的法兰板29,所述法兰板包围着压力室6,并且加强了法兰段2的壳体壁。
限压阀28与螺杆体18平行,且按照连接孔8的高度安装到法兰段2中,并且汇入到压力室6的径向错开或者外移的段6a中。具体地讲,法兰段2在这个区域中形成一种材料堆积2a,在内侧压力室6形成到所述材料堆积中,并且这个材料堆积适合与法兰段2的连接孔8同轴地形成限压阀孔30。因此,这个限压阀28大体按照连接孔8的高度以及与螺杆体18同轴地定位在螺杆壳体段4和法兰板29之间的区域中。
其中,限压阀28由活塞形的阀体32构成。它的活塞尖端部34密封地位于阀座36上,其形成在泵壳体1中,也就是说形成在法兰段2中。其中,阀体32借助弹簧38预张紧在阀座36上。通过调节螺钉40可调节弹簧的预张紧力,其也旋入到泵壳体1的法兰段2中。在阀座32的下部设置基本垂直于限压阀28钻入到法兰段2中的排出孔42,所述排出孔与未示出的液箱连接。只要在压力室6中超过通过张紧弹簧38调节的压力则打开限压阀28,并且将过压直接卸载到液箱中。
最后需要指出的是,限压阀28的位置和定向并不局限于前面所述的实施例。而是限压阀28也可相对于连接孔8沿径向方向安装到法兰段2中,其中,在这种情况中,限压阀28的阀活塞32打开或者关闭在压力室6和液箱接头之间的与连接孔8平行延伸的卸压孔。也可以设想,在法兰板26的上部,也就是在法兰板26和泵盖14之间将限压阀28安装到法兰段2中,其中,在这种情况中,泵盖14的法兰连接表面所需的法兰段2的材料聚积可用于装入限压阀28。
附图标记表
1泵壳体
2法兰段
4螺杆壳体段
6压力室
6a移出的室段
8连接孔
10螺杆室
12进入孔
14泵盖
16通孔
18螺杆柄
20螺杆
22滚动轴承
24密封段
26螺旋段
27排放孔
28限压阀
29法兰板
30阀孔
32阀体
34活塞尖端部
36阀座
38张紧弹簧
40调节螺钉
42排放孔
Claims (8)
1.具有泵壳体(1)的螺杆泵,在泵壳体上成形有用于安装泵的法兰段(2),并且具有集成的限压阀(28),其特征在于,限压阀(28)在泵壳体(1)的法兰段(2)中装到该泵壳体中,其中泵壳体(1)由至少两个单独的壳体部件构成,其中两个单独的壳体部件分别为法兰段(2)和螺杆壳体段(4),法兰段和螺杆壳体段彼此螺栓连接、敛缝连接或者铆接,并且其中所述螺杆泵包括至少一个螺杆(20),螺杆的螺杆柄(18)穿过法兰段(2)中的压力室(6),并且螺杆的螺旋段(26)伸入到在螺杆壳体段(4)中形成的螺杆室(10)中。
2.按照权利要求1所述的螺杆泵,其特征在于,压力室(6)成形在泵壳体(1)的法兰段(2)中,并且限压阀(28)直接与压力室(6)流体连接。
3.按照权利要求1或2所述的螺杆泵,其特征在于,限压阀(28)与流体箱连接,为的是将压力室(6)中的过压卸载到流体箱中。
4.按照权利要求1所述的螺杆泵,其特征在于,限压阀(28)基本与螺杆(20)平行地、大体在螺杆柄(18)的高度上插入到法兰段(2)中。
5.按照权利要求1或4所述的螺杆泵,其特征在于,在螺杆柄(18)上成形有密封段(24),所述密封段与法兰段(2)在压力室(6)的入口处密封滑动啮合,并且因此使压力室(6)相对于环境密封。
6.按照权利要求1所述的螺杆泵,其特征在于,压力室(6)相对于螺杆(20)为偏心成形,并且限压阀(28)通到压力室(6)的相对于螺杆(20)径向外移的段(6a)中。
7.按照权利要求1所述的螺杆泵,其特征在于,所述螺杆泵具有法兰板(29),所述法兰板形成在泵壳体(1)的法兰段(2)上,并且环盘形地包围着压力室(6)。
8.按照权利要求7所述的螺杆泵,其特征在于,限压阀(28)在法兰板(29)和螺杆壳体段(4)之间的区域中装入到法兰段(2)的壳体壁中。
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DE102009056218.4 | 2009-11-28 | ||
DE102009056218A DE102009056218A1 (de) | 2009-11-28 | 2009-11-28 | Schraubenspindelpumpe mit integriertem Druckbegrenzungsventil |
PCT/EP2010/005657 WO2011063870A2 (de) | 2009-11-28 | 2010-09-15 | Schraubenspindelpumpe mit integriertem druckbegrenzungsventil |
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US (1) | US9404494B2 (zh) |
EP (1) | EP2504578B2 (zh) |
JP (1) | JP5693601B2 (zh) |
CN (1) | CN103026069B (zh) |
BR (1) | BR112012012684B1 (zh) |
DE (1) | DE102009056218A1 (zh) |
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DE102012005949B4 (de) * | 2012-01-31 | 2013-09-12 | Jung & Co. Gerätebau GmbH | Zweispindelige Schraubenspindelpumpe in zweiflutiger Bauweise |
DE102013102031B4 (de) | 2013-03-01 | 2016-05-12 | Netzsch Pumpen & Systeme Gmbh | Aus wenigstens zwei Teilen gebildete Schraubenspindelpumpe |
KR20160059748A (ko) * | 2014-11-19 | 2016-05-27 | 삼성에스디아이 주식회사 | 전극 조립체 및 이를 포함하는 배터리 팩 |
GB2549141A (en) * | 2016-04-08 | 2017-10-11 | Delphi Int Operations Luxembourg Sarl | Fuel pump |
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CN107842537B (zh) * | 2017-12-11 | 2024-04-30 | 江苏徐工工程机械研究院有限公司 | 端盖总成、液压设备及工程机械 |
DE102018109866A1 (de) | 2018-04-24 | 2019-10-24 | Nidec Gpm Gmbh | Regelbares Schmierölfördersystem für Verbrennungsmaschinen |
DE102018131587A1 (de) | 2018-12-10 | 2020-06-10 | Nidec Gpm Gmbh | Regelbare Schraubenspindelpumpe |
KR102172863B1 (ko) * | 2020-07-30 | 2020-11-02 | 심재만 | 오일 펌프 |
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DE10114585A1 (de) * | 2001-03-24 | 2002-09-26 | Pfeiffer Vacuum Gmbh | Vakuumpumpe |
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JP2005207368A (ja) * | 2004-01-26 | 2005-08-04 | Denso Corp | 空気供給装置 |
JP2008133818A (ja) * | 2006-11-01 | 2008-06-12 | Toyota Industries Corp | 液化ガス用ポンプ |
JP5196226B2 (ja) * | 2007-07-23 | 2013-05-15 | 兵神装備株式会社 | 内袋吸込み防止装置及び汲出し装置 |
-
2009
- 2009-11-28 DE DE102009056218A patent/DE102009056218A1/de not_active Withdrawn
-
2010
- 2010-09-15 CN CN201080053531.7A patent/CN103026069B/zh active Active
- 2010-09-15 WO PCT/EP2010/005657 patent/WO2011063870A2/de active Application Filing
- 2010-09-15 US US13/512,138 patent/US9404494B2/en active Active
- 2010-09-15 EP EP10754884.4A patent/EP2504578B2/de active Active
- 2010-09-15 BR BR112012012684-9A patent/BR112012012684B1/pt active IP Right Grant
- 2010-09-15 JP JP2012540296A patent/JP5693601B2/ja active Active
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JPS6085281A (ja) * | 1983-07-20 | 1985-05-14 | イモ アクチエボラ−グ | ねじポンプ |
US6345959B1 (en) * | 1999-08-18 | 2002-02-12 | Sauer-Danfoss (Swindon) Limited | Pump with integral pilot operated priority pressure regulating valve |
CN2589692Y (zh) * | 2002-11-15 | 2003-12-03 | 阜新汽车转向泵厂 | 汽车可变排量动力转向泵 |
CN2791306Y (zh) * | 2005-04-13 | 2006-06-28 | 但维强 | 带有调压阀的螺杆泵 |
CN2856495Y (zh) * | 2006-01-14 | 2007-01-10 | 赵育基 | 螺杆泵流量调节装置 |
Also Published As
Publication number | Publication date |
---|---|
DE102009056218A1 (de) | 2011-06-01 |
US20130022458A1 (en) | 2013-01-24 |
EP2504578A2 (de) | 2012-10-03 |
EP2504578B1 (de) | 2016-09-07 |
BR112012012684A2 (pt) | 2016-08-23 |
US9404494B2 (en) | 2016-08-02 |
WO2011063870A2 (de) | 2011-06-03 |
EP2504578B2 (de) | 2019-11-06 |
JP2013512372A (ja) | 2013-04-11 |
JP5693601B2 (ja) | 2015-04-01 |
WO2011063870A3 (de) | 2013-01-24 |
BR112012012684B1 (pt) | 2020-09-01 |
CN103026069A (zh) | 2013-04-03 |
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