CN1325801C - Pump installation for plating work - Google Patents
Pump installation for plating work Download PDFInfo
- Publication number
- CN1325801C CN1325801C CNB031604005A CN03160400A CN1325801C CN 1325801 C CN1325801 C CN 1325801C CN B031604005 A CNB031604005 A CN B031604005A CN 03160400 A CN03160400 A CN 03160400A CN 1325801 C CN1325801 C CN 1325801C
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- CN
- China
- Prior art keywords
- pump
- impeller
- motor
- case
- present
- 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.)
- Expired - Lifetime
Links
- 238000009434 installation Methods 0.000 title 1
- 238000007747 plating Methods 0.000 title 1
- 238000012545 processing Methods 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 14
- 230000008093 supporting effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- 230000008685 targeting Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- -1 stainless steel Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a pump device for plate work, which is composed of a motor part (M) and a pump part (P) integrated into a whole; the inner side of a pump shell (4) is provided with an impeller (7) driven to rotate by a motor (2), and the rotating shaft (3) is sealed by a mechanical seal member (11) supported by an encloser (5); the inner side of the encloser (5) in the radial direction is supported by support members (12, 12A) fixed on one side of the motor (2), and the encloser (5) can not move toward the motor (2) when pressure changes.
Description
The present invention is denomination of invention the dividing an application for No. the 97182471.1st, the Chinese patent application of " pump-unit of sheet metal processing " of on December 8th, 1997 application.
Technical field
The present invention relates to the pump-unit of sheet metal processing, it is partly formed by being integral the motor portion and the pump that constitute, and has in pump case by electric motor driven impeller.
Background technique
Known from institute, along with the development of sheet metal processing technique, pump-unit occurred, thereby alleviated the weight of device with sheet metal processing.But, owing to have pressure in the pump, thereby under the occasion by the processing of sheet metals such as stainless steel, member is easily deformable, can produce problems such as leak of liquid, efficient reduction.
Summary of the invention
The pump-unit of on-deformable sheet metal processing when therefore, main purpose of the present invention is to provide a kind of pressure oscillation.
Another object of the present invention is to prevent that case from deforming and the mechanical seal of sealing turning axle was lost efficacy.
The 3rd purpose of the present invention is the distortion of the Venturi tube that prevents to be communicated with suction port and is arranged on the leak of liquid that " O " RunddichtringO at this Venturi tube place comes off and causes thus.
The 4th purpose of the present invention is to provide a kind of seal ring that can play useful effect when pressure oscillation, reduces the leakage rate between impeller and the housing thus, can prevent the seal ring burn simultaneously.
The 5th purpose of the present invention is to provide a kind of pump of sheet metal processing, and according to this pump structure, processing is used to discharge near the exhaust port of the air in impeller center easily.
The path housing that the 6th purpose of the present invention is to provide a kind of multistage pump is the pump of the sheet metal processing of easy damaged not.
The 7th purpose of the present invention is to provide a kind of pump that can make the sheet metal processing of multistage pump axial length shortening.
The pump-unit of the sheet metal processing of making in order to achieve the above object of the present invention, partly constituting, have in the pump case by electric motor driven impeller, turning axle by motor portion that forms one and pump is to use the mechanical sealing element by the case supporting to seal, and it is characterized in that: the inboard of the radial direction of this case is by the supporting members supports that is fixed on motor one side.According to this structure, can prevent that above-mentioned case is along axial direction, to motor one side generation distortion.
The pump-unit of sheet metal processing of the present invention, partly constitute, have in the pump case by electric motor driven impeller, be arranged on the suction port that sucks on the housing and be connected with impeller eye by motor portion that forms one and pump by Venturi tube, it is characterized in that: suck housing and have the targeting part that extends internally from suction port, this targeting part matches with the Venturi tube inboard, in the stepped part that this Venturi tube front end forms, " O " RunddichtringO has been installed, should stopper ring have been arranged " O " RunddichtringO arranged outside.
The pump-unit of sheet metal processing of the present invention, partly constitute by motor portion that forms one and pump, have in the pump case by electric motor driven impeller, be provided with seal ring between this impeller and the housing parts, it is characterized in that: have section and be " コ " word shape and opening seal ring towards high pressure one side, the flange portion in the sealing circle radial direction outside is installed in the packing holder that is arranged at the step place that forms on the housing parts, lip part office in sealing circle radial direction inboard is provided with lip, and the strengthening rib by suitable quantity between the flange portion in the above-mentioned radial direction outside and the flange portion of radial direction inboard is connected.
The pump-unit of sheet metal processing of the present invention, partly being constituted, had by electric motor driven impeller, turning axle in the pump case by motor portion that forms one and pump is to use the mechanical sealing element by the case support to seal, it is characterized in that: above-mentioned impeller is provided with the pore of perforation, this impeller is installed on the wheel hub that is disposed on the turning axle, and the part of above-mentioned pore is hidden by the lip part that the radial direction outside along above-mentioned wheel hub enlarges.
The pump-unit of sheet metal processing of the present invention partly is made of motor portion that constitutes one and pump, is provided with in the pump case by electric motor driven both stage impellers, is separated by guide plate and path lid between this both stage impellers; In the 1st grade of impeller, the rectification that is arranged between above-mentioned guide plate and the path lid is fixed tightly on the above-mentioned guide plate with plate; The outside in the 2nd grade of impeller radius direction is formed with the vortex chamber, is connected with exhaust port by the vortex chamber.
The invention effect
The present invention with said structure and since with support member from motor one side bearing case, this case is supporting the mechanical seal that is arranged on the turning axle, so the problem of mechanical seal failure can not take place.
Owing to support the stream that is used to seal from the suction port to the Venturi tube with stopper ring, and can stop high-pressure liquid, the problem that sealing effect descends, " O " RunddichtringO comes off because of distortion can not appear.
Because the seal ring section between impeller and the housing is " コ " font and towards high pressure one side opening, so can reduce leakage, prevent to bite.
Owing to the part by the hole of the outflow of the air in the motor side cavity that is trapped in impeller is covered with the lip part of wheel hub, thus the hole can be beaten bigger, thereby improved processability.
In multistage pump, be free state owing to covering on the guide plate of the influence that rectification is fixed on the variation that is not stressed with dividing plate and with respect to path, so, the concentrated problem of stress can not take place yet even the path lid produces to be out of shape.
In addition, owing to be communicated with exhaust port by the vortex chamber outside the radial direction of terminal impeller, so enough shorten the length of axial direction.Like this, for the pump of in light weight, more yielding sheet metal processing, the present invention is very suitable.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of the pump-unit of a form of implementation of the present invention, Fig. 2 is the implementation result explanatory drawing of pump-unit shown in Figure 1, Fig. 3 is the longitudinal sectional drawing of pump-unit modification example shown in Figure 1, Fig. 4 is the longitudinal sectional drawing of another modification example of pump-unit shown in Figure 1, Fig. 5 is the longitudinal sectional drawing of the another modification example of pump-unit shown in Figure 1, Fig. 6 is the enlarged view of Y part among Fig. 1, Fig. 7 is the enlarged view of Z part among Fig. 1, Fig. 8 is the right elevation of structure shown in Figure 7, Fig. 9 is the enlarged view of U part among Fig. 3, Figure 10 be the V of structure shown in Figure 9 to view, Figure 11 is the embodiment's 1 of the expression pump-unit that uses a plurality of impellers a longitudinal sectional drawing.
Concrete form of implementation
Figure below further elaborates the present invention with reference to the accompanying drawings.
Fig. 1 has represented the pump-unit of the invention process form.Among the figure, form by pump part P and motor portion M two-part, have the motor 2 that is installed in the motor field frame 1 among the motor portion M, be used for driving rotational axle 3 by the pump-unit that symbol A represents.Have pump case 4 among the pump part P, be arranged on the case 5 of this pump case 4, impeller 7 10 fixing by fixed element, that driven by above-mentioned turning axle 3 is installed in pump case 4 near motor portion M one sides.Therefore, the fluid that is sucked by the suction port 8 that is arranged on the pump case 4 boosts by impeller 7, is discharged by the exhaust port 9 that is arranged on the pump case 4.
The turning axle 3 of drives impeller 7 is by bearing 10 supportings that extend into motor one side in the case 5, and pump part one side is sealed by mechanical sealing element.The core of above-mentioned case 5 is neighbouring to be that thrust flange 12 is supported from motor one side by the support member shown in the figure.This thrust flange 12 is to be processed to form frusto-conical by sheet metal.
Fig. 2 represents effect of the present invention.As shown in Figure 1, case 5 by impeller 7 one sides, just pressure has been born in the left side among the figure, so these case 5 oriented motor one sides, the i.e. trend that moves of right side in figure.The 1st element 11a of the mechanical sealing element shown in Fig. 2 11 and the 2nd element 11b are in the state that can't slide like this, thereby produce the leakage shown in symbol x.But, in the present invention, because support member 12 is arranged, so the problems referred to above can not take place.
Fig. 3 represents an alternative embodiment of the invention, and among this embodiment, the protruding 10a fastening key is used as impeller 7 fixed elements.Other structures are identical with Fig. 1 in fact, the therefore identical member symbolic representation identical with Fig. 1, and explanation is omitted.
Fig. 4 represents another embodiment of the present invention.Among this embodiment, the projection that stretches to pump one side with the front shell 15 of motor portion M forms support member 12A.Other structures are identical with Fig. 1 in fact.Above-mentioned all embodiments have good result to the case 5 of sheet metal processing.
Fig. 5 represents support member 12A shown in Figure 4 is used for embodiment's shown in Figure 3 example.Other structures are same as the previously described embodiments.
Fig. 6 is the enlarged view of Y part among Fig. 1.As previously mentioned, suction port 8 is by being installed on the pump case 4 such as the mode with weld seam 20, and this pump case 4 begins turning-in from suction port 8 and formed the targeting part 6a that extends, and matches with Venturi tube 21.The cavity H1 that the outside of this Venturi tube 21 forms, promptly with pump case 4 between space and exhaust port 9 be connected, be in high pressure conditions.And this Venturi tube 21 inboard cavity H2 that form are suction areas of impeller 7, and pressure is lower.Between cavity H1 and H2, be provided with " O " RunddichtringO 22 in order to prevent to leak.
But, according to prior art " O " shape seal ring 22 only is set, in this structure, because the pressure of cavity H1 makes targeting part 6a when radial direction is out of shape inwards, the possibility that has " O " shape seal ring to come off.
Therefore in the present invention, stepped part 23 outsides that form at the front end of Venturi tube 21 have tightened up ring-type stopper ring 24, and the inner end 6b of targeting part 6a only extends certain-length e to the inside of Venturi tube 21.
Like this, not only can prevent coming off of " O " shape seal ring, and fully improve the sealing of this part.In addition, in when assembling, can be inserted in " O " shape seal ring 22, fastening stopper ring 24 more earlier.This stopper ring 24 has the high pressure that bears cavity H2 and makes this high pressure can not be applied to the effect at targeting part 6a inner end 6b place.Therefore, for the housing of sheet metal processing, has good effect.In addition, also can adopt said structure in the illustrated embodiment beyond Fig. 1.
Fig. 7 is the enlarged view of Z part among Fig. 1.As everyone knows, between impeller 7 and housing parts 25, be provided with seal ring, in order to the rotating part of sealing impeller 7 and as the slit between the housing parts 25 of fixed component.But according to prior art, this housing parts 25 is set with the seal ring of whole ring-type.Therefore when the excesssive gap between sealing circle and the impeller 7, can when the gap is too small, can produce the phenomenon of nipping because of leaking the excessive efficient that reduces pump.
In the present invention as shown in Figure 7, on the housing parts 25 that extends to the hub portion of impeller 7, be formed with stepped part 25a, this stepped part 25a is provided with the packing holder 26 that section is " L " type, and the rubber system seal ring of representing with symbol 27 is installed on sealing ring support 26.Sealing circle 27 disconnected and be " コ " font, and opening is towards hyperbaric chamber one side, and its structure begins approx to extend to the right and lip part 27c with lip 27d forms along right angle orientation by the 27b of wall portion that is close to lip part 27a that packing holder 26 installs, begins radially to extend internally from this lip part 27a with from the 27b of this wall portion inner edge radially.
Like this, formed opening portion 28 by above-mentioned lip part 27a, 27c and the 27b of wall portion, in the time of in high pressure water flows into this opening portion 28, this opening portion 28 is expanded, thereby lip 27d is matched with the wheel hub of impeller 7.But owing to not wishing to be out of shape the excessive problems such as abrasion that cause, as shown in Figure 8, the several angle of being separated by in a circumferential direction is provided with the strengthening rib 29 of some, with the restrained deformation amount.
According to foregoing invention, owing to be provided with the seal ring 27 that section is " コ " font, thus not only reduced leakage, and can prevent to bite.Therefore, be highly suitable for easily deformable structures such as the housing of sheet metal processing and impeller.In addition, though be the example explanation with Fig. 1, the present invention is applicable to Fig. 3 too, the described embodiment of Fig. 4 and Fig. 5.
Fig. 9 is the enlarged view of U part among Fig. 8, and Figure 10 is the view of arrow V direction among Fig. 9.Known from institute, difference owing to centrifugal force in the cavity H3 among Fig. 9 between impeller 6 and the case 5 is easy to form air layer Ai, and in order to remove this air layer Ai, be provided with pore 30 in the appropriate position of impeller 7, to solve the problem of burning because of dry friction owing between above-mentioned air layer Ai and the mechanical seal ring 11.
If above-mentioned pore 30 is excessive, can be about 2mm so preferably make diameter owing to leakage lowers efficiency then.On the other hand, though for the impeller 7 of sheet metal processing, diameter is easy to processing greater than the hole of 3.5mm.But the hole is crossed conference and is lowered efficiency.So in the structure of the present invention, as shown in figure 10, utilize hub portion 10a by impeller radially outwards to strengthen and the lip part 10b that forms, pore 30 covered about half.Like this, not only pore 30 is easy to processing, and can obtain good exhaust effect.
The present invention is not only applicable to the single-stage pump such as the foregoing description, and is applicable to multistage pump (as shown in figure 11).In Figure 11, represent with same-sign with Fig. 1, Fig. 3, the corresponding part in addition of Fig. 4, Fig. 5.In illustrated embodiment, the 1st grade of impeller 7a and the 2nd grade of impeller 7b are installed on the turning axle 3, in order to separate this impeller 7a and 7b, are provided with guide plate 31 and path lid 33.Be provided with rectification dividing plate 32 between this guide plate 31 and path lid 33, this dividing plate 32 is welded on the guide plate 31.Like this, dividing plate 32 is free state with respect to path lid 33.This path lid 33 forms pressure difference on the axial direction of pump part P.Therefore, path lid 33 is in operation easily deformable, and guide plate 31 does not have pressure difference substantially on axial direction, thereby does not also produce distortion.
Because when being fixed on dividing plate 32 on the path lid 33, the distortion that is produced makes fixing place, welding part phenomenon in the stress occur, thereby breakage might take place.And in the present invention, owing to dividing plate is fixed on the guide plate 31, so the stress concentration phenomenon can not occur.Therefore be highly suitable in the structure of sheet metal processing.
According to the present invention, the final stage i.e. radial direction outside of the 2nd grade of impeller 7b is formed with vortex chamber 35, and is communicated with exhaust port 9.That is to say, the relevant guide plate with impeller 7b (in embodiment illustrated in fig. 4 the 2nd grade) is not set.
According to prior art, during from the impeller guiding liquids, the terminal impeller 7b of the position deviation of exhaust port 9 on axial direction is so increased the length of axial direction by guide plate.But in the present invention, owing to exhaust port 9 being set, thereby make exhaust port 9 can be positioned at the radial direction outside of impeller 7b, thereby shortened the length of axial direction by eddy current precious 35.
In addition, though above-mentioned illustrated each embodiment is a centrifugal pump, obviously the present invention also can be applicable in the pump of other structures.
Claims (1)
1. the pump-unit of sheet metal processing, partly constituting, have in pump case by electric motor driven impeller, turning axle by motor portion that forms one and pump is to use the mechanical sealing element by the case supporting to seal, and it is characterized in that: the inboard of the radial direction of this case is by the supporting members supports that is fixed on motor one side.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97182471 CN1128937C (en) | 1997-12-08 | 1997-12-08 | Pumping device method by sheet-metal working |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97182471 Division CN1128937C (en) | 1997-12-08 | 1997-12-08 | Pumping device method by sheet-metal working |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1570395A CN1570395A (en) | 2005-01-26 |
| CN1325801C true CN1325801C (en) | 2007-07-11 |
Family
ID=5178518
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97182471 Expired - Lifetime CN1128937C (en) | 1997-12-08 | 1997-12-08 | Pumping device method by sheet-metal working |
| CNB031604005A Expired - Lifetime CN1325801C (en) | 1997-12-08 | 1997-12-08 | Pump installation for plating work |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97182471 Expired - Lifetime CN1128937C (en) | 1997-12-08 | 1997-12-08 | Pumping device method by sheet-metal working |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1128937C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS322427B1 (en) * | 1954-10-08 | 1957-04-19 | ||
| JPS5594491U (en) * | 1978-12-25 | 1980-06-30 | ||
| JPH02135698U (en) * | 1989-04-14 | 1990-11-13 | ||
| JPH0699516A (en) * | 1992-09-22 | 1994-04-12 | Ube Nitto Kasei Co Ltd | Hollow sheet made of thermoplastic resin |
| JPH0647999B2 (en) * | 1990-02-22 | 1994-06-22 | カーエスベー・アクチエンゲゼルシャフト | Sheet metal structure spiral wound casing |
| JPH0718436B2 (en) * | 1990-12-25 | 1995-03-06 | 株式会社荏原製作所 | Steel plate intermediate casing and multi-stage pump using the intermediate casing |
-
1997
- 1997-12-08 CN CN 97182471 patent/CN1128937C/en not_active Expired - Lifetime
- 1997-12-08 CN CNB031604005A patent/CN1325801C/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS322427B1 (en) * | 1954-10-08 | 1957-04-19 | ||
| JPS5594491U (en) * | 1978-12-25 | 1980-06-30 | ||
| JPH02135698U (en) * | 1989-04-14 | 1990-11-13 | ||
| JPH0647999B2 (en) * | 1990-02-22 | 1994-06-22 | カーエスベー・アクチエンゲゼルシャフト | Sheet metal structure spiral wound casing |
| JPH0718436B2 (en) * | 1990-12-25 | 1995-03-06 | 株式会社荏原製作所 | Steel plate intermediate casing and multi-stage pump using the intermediate casing |
| JPH0699516A (en) * | 1992-09-22 | 1994-04-12 | Ube Nitto Kasei Co Ltd | Hollow sheet made of thermoplastic resin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1570395A (en) | 2005-01-26 |
| CN1128937C (en) | 2003-11-26 |
| CN1276042A (en) | 2000-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070711 |