CN1378621A - High pressure cleaning device - Google Patents
High pressure cleaning device Download PDFInfo
- Publication number
- CN1378621A CN1378621A CN00813912A CN00813912A CN1378621A CN 1378621 A CN1378621 A CN 1378621A CN 00813912 A CN00813912 A CN 00813912A CN 00813912 A CN00813912 A CN 00813912A CN 1378621 A CN1378621 A CN 1378621A
- Authority
- CN
- China
- Prior art keywords
- pressure cleaning
- internal gear
- cleaning device
- pump
- steel alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
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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
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
-
- 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
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/084—Toothed wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/027—Pump details
Abstract
The invention relates to a high pressure cleaning device comprising a motor driving an internally toothed gearwheel pump for supply of a cleaning fluid, under high pressure, to an outlet device. Said internal tooth gear and/or an external tooth gear comprise a molybdenum containing chrome steel alloy which also contains a nitrogen component of 0.1 - 1 % and which increases the corrosion resistance and hardness of the toothed gearwheels.
Description
Technical field
The present invention relates to a kind of high-pressure cleaning device, it have a motor and one by the internal gear pump of this motor driven in order to carry high-pressure cleaning liquid to a tapping equipment.
Background technique
For example from DE 197 26 794 known a kind of such high-pressure cleaning devices.
In with a kind of high-pressure cleaning device, to water-guiding element, especially the corrosion resistance of the pump parts of water guide has extra high requirement.Usually utilize such high-pressure cleaning device inspiration water.Because such water is used to clean, it not necessarily has the quality of potable water and therefore can take from various water sources.Also must be able to utilize described high-pressure cleaning device to carry the liquid that comprises the corrosivity composition in this case.In addition, also subsidiary inspiration chemical in some high-pressure cleaning devices, it also will attach corrosion pump parts.
Therefore, the pump parts must satisfy the high request to corrosion resistance.Under the situation of internal gear pump, also demanding gear teeth intensity and to the high steadiness of sealing surface.
Internal gear pump is being used under the situation of transporting water especially, and is comparing under for example transfer the fuel or oil-containing material or oil condition, lubricated in the zone of the moving element of internal gear pump is very not enough.In internal gear pump, lubricating between the internal tooth of hollow wheels and the external tooth of internal gear realized by medium to be carried usually.Because the moving element that interrelates occurs the gap in the wearing and tearing that are in contact with one another the zone in the zone of sealing surface, it causes the leakage on sealing surface.
In order to reduce this effect of attrition, used agglomerated material in the internal gear pump of people in high-pressure cleaning device so far, it does not partly have coating at sealing station.In addition, advised such gear pump is adopted pottery.
Yet the material that utilizes this suggestion is so far failing aspect corrosion resistance and the wear resistance to reach essential working life in having the high-pressure cleaning device of internal gear pump so far.
Summary of the invention
Task of the present invention and purpose are, find a kind of material that is used for gear for starting described high-pressure cleaning device with internal gear pump, and this material satisfies above-mentioned requirement about corrosion resistance and hardness.
This purpose reaches like this, promptly be used for to tapping equipment carry high-pressure cleaning liquid, have a motor and a high-pressure cleaning device by the internal gear pump of motor driven, internal gear and/or external gear are made by the molybdenum-chrome steel alloy that contains of the nitrogen component of a kind of 0.1-1% of containing.
Confirmed already, particularly contained the satisfied requirement of chrome steel alloy of the nitrogen component of 0.2-1% about corrosion resistance.
Be more preferably the chrome steel alloy that adopts the nitrogen component that contains 0.3-1%.
In order to improve corrosion resistance, when the material of internal gear and/or external gear has by weight the molybdenum content between 0.8 and 2%, be particularly advantageous.
Have by weight the chromium content between the 9-16% according to alloy situation of the present invention under, can reach extra high intensity.
When internal gear and/or external gear were all only made by alloy of the present invention, the number of the process step of its manufacturing was few especially.Coating that need be on sealing surface and/or similarly handle in this case.
Description of drawings
The preferred embodiment of the invention is below described.Wherein:
Fig. 1 illustrates one according to high-pressure cleaning device of the present invention;
Fig. 2 illustrates the embodiment of an internal gear pump.
Embodiment
In high-pressure cleaning device in accordance with the preferred embodiment, a unshowned drive motor is set in a housing 1.This drive motor can be motor or internal-combustion engine.Pump of described motor driven, cleaning solution is carried to the liquid outlet on the pressure side 3 of internal gear pump in its liquid inlet 2 from the suction side of high-pressure cleaning device.High pressure hose 4 and tapping equipment 5 are connected outlet 3 places of high-pressure cleaning device.
Internal gear pump can be a whole dismountable internal gear pump 6, described internal gear has schematically been described in Fig. 2, wherein the unshowned tooth top summit of outer gearing internal gear is positioned at the height of line 7, and the root of the backlash of interior engagement external gear is positioned at the height of line 8.Described internal gear pump can be a kind of cycloid rotor pump type, and it has internal gear and the fixing external gear that is driven by live axle 9.Described internal gear pump also can be designed as rail and revolves pump, and it has internal gear and the fixing external gear that is driven by live axle 9.Revolve in the pump at rail, internal gear is made planetary motion around the spin axis of external gear.In such internal gear pump, to since the gear sealing surface fall in the relative movement of its spin axis and therefore mutually near and occurring wear to compensate also be well-known.
In this case, described internal gear is rotatably mounted around running shaft 9.Preferred a kind of internal gear pump, wherein few tooth of the gear ratio external gear of internal gear of adopting.
The working method of internal gear pump is fully known by prior art, for example can consult DE 197 26 794 to this.
In a preferred embodiment, the internal gear of internal gear pump 6 of the present invention and external gear are made by a kind of chrome steel alloy, and it has about 15% chromium content, about 0.4% nitrogen content and about 0.4% molybdenum content.
Claims (6)
1. high-pressure cleaning device, it have a motor and one by the internal gear pump of described motor driven in order to carry high-pressure cleaning liquid to a tapping equipment, it is characterized in that internal gear and/or external gear are made by the molybdenum-chrome steel alloy that contains of the nitrogen component of a kind of 0.1-1% of containing.
2. according to the described high-pressure cleaning device of claim 1, it is characterized in that internal gear and/or external gear are made by the molybdenum-chrome steel alloy that contains of the nitrogen component of a kind of 0.2-1% of containing.
3. according to claim 1 or 2 described high-pressure cleaning devices, it is characterized in that internal gear and/or external gear are made by the molybdenum-chrome steel alloy that contains of the nitrogen component of a kind of 0.3-1% of containing.
4. according to claim 1 or 2 described high-pressure cleaning devices, it is characterized in that the molybdenum content of chrome steel alloy is by weight between 0.8-2%.
5. according to one of an aforesaid right requirement described high-pressure cleaning device, it is characterized in that the chromium content in the alloy is by weight between 9-16%.
6. according to one of an aforesaid right requirement described high-pressure cleaning device, it is characterized in that internal gear and/or external gear are all only by making according to alloy of the present invention.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19948860.6 | 1999-10-08 | ||
| DE19948860A DE19948860A1 (en) | 1999-10-08 | 1999-10-08 | High pressure cleaning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1378621A true CN1378621A (en) | 2002-11-06 |
| CN1215259C CN1215259C (en) | 2005-08-17 |
Family
ID=7925185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008139121A Expired - Fee Related CN1215259C (en) | 1999-10-08 | 2000-10-06 | High pressure cleaning device |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1218640B1 (en) |
| CN (1) | CN1215259C (en) |
| AT (1) | ATE231219T1 (en) |
| AU (1) | AU7786200A (en) |
| DE (2) | DE19948860A1 (en) |
| DK (1) | DK1218640T3 (en) |
| ES (1) | ES2189769T3 (en) |
| WO (1) | WO2001027476A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7556210B2 (en) * | 2006-05-11 | 2009-07-07 | S. C. Johnson & Son, Inc. | Self-contained multi-sprayer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1270122A (en) * | 1969-03-06 | 1972-04-12 | Plessey Co Ltd | Improvements in or relating to gear pumps |
| JPS5837162A (en) * | 1981-08-31 | 1983-03-04 | Toshiba Corp | Pump and its manufacture |
| JPH01246343A (en) * | 1988-03-25 | 1989-10-02 | Daido Steel Co Ltd | Stainless steel |
| JPH06336652A (en) * | 1993-05-27 | 1994-12-06 | Agency Of Ind Science & Technol | Stainless forged steel for seawater pump of atomic power plant |
| JPH09195004A (en) * | 1995-11-10 | 1997-07-29 | Mitsubishi Heavy Ind Ltd | Stainless steel |
| DE19726794A1 (en) | 1997-06-24 | 1999-01-07 | Elektra Beckum Ag | Water high pressure cleaning device |
| JPH1180911A (en) * | 1997-09-11 | 1999-03-26 | Nippon Steel Corp | High purity chromium steel sheet for pump impeller |
-
1999
- 1999-10-08 DE DE19948860A patent/DE19948860A1/en not_active Withdrawn
-
2000
- 2000-10-06 CN CNB008139121A patent/CN1215259C/en not_active Expired - Fee Related
- 2000-10-06 EP EP00967843A patent/EP1218640B1/en not_active Expired - Lifetime
- 2000-10-06 DK DK00967843T patent/DK1218640T3/en active
- 2000-10-06 WO PCT/EP2000/009819 patent/WO2001027476A1/en active IP Right Grant
- 2000-10-06 AU AU77862/00A patent/AU7786200A/en not_active Abandoned
- 2000-10-06 ES ES00967843T patent/ES2189769T3/en not_active Expired - Lifetime
- 2000-10-06 AT AT00967843T patent/ATE231219T1/en not_active IP Right Cessation
- 2000-10-06 DE DE50001121T patent/DE50001121D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2189769T3 (en) | 2003-07-16 |
| DE19948860A1 (en) | 2001-04-12 |
| DE50001121D1 (en) | 2003-02-20 |
| WO2001027476A1 (en) | 2001-04-19 |
| AU7786200A (en) | 2001-04-23 |
| ATE231219T1 (en) | 2003-02-15 |
| EP1218640A1 (en) | 2002-07-03 |
| CN1215259C (en) | 2005-08-17 |
| EP1218640B1 (en) | 2003-01-15 |
| DK1218640T3 (en) | 2003-02-24 |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |