CN103291626B - A kind of Pulp pump - Google Patents
A kind of Pulp pump Download PDFInfo
- Publication number
- CN103291626B CN103291626B CN201310280514.2A CN201310280514A CN103291626B CN 103291626 B CN103291626 B CN 103291626B CN 201310280514 A CN201310280514 A CN 201310280514A CN 103291626 B CN103291626 B CN 103291626B
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- China
- Prior art keywords
- pump
- support
- pump shaft
- ball cover
- stuffing box
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- Expired - Fee Related
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Abstract
A kind of Pulp pump, comprise impeller, the pump housing, support, bearing support, pump shaft, Stuffing box, anti-tray, upper ball cover and lower ball cover, the pump housing, support are connected successively with bearing support; Upper ball cover is positioned at the outer end of bearing support, and lower ball cover is positioned at the hollow cavity of support and is arranged on support the inner near bearing support; Stuffing box is set on pump shaft, and Stuffing box is fixedly connected with lower ball cover; Anti-tray is set on pump shaft, and anti-tray arranges near Stuffing box and is fixed on pump shaft; The pump housing and support all have through hole, and described through-hole diameter is greater than pump shaft diameter, has gap between through hole and pump shaft.
Description
Technical field
The present invention relates to a kind of Pulp pump of industrial and mineral, in particular, relate to a kind of Pulp pump of favorable sealing property.
Background technique
All there is axle root sealing problem in the Pulp pump of current industrial and mineral extensive use and slurry pump, under normal circumstances, adopt the seal approach that three kinds common: packing seal, sub-impeller seal and mechanical seal, these three kinds of sealings can both play certain sealing effect, but, but there are some drawbacks respectively, as follows:
1, packing seal: if water seal underpressure, so will produce leakage in the short time, even if water seal pressure meets the demands, according to the information of user feedback, its working life is two to three moons at most.
2, sub-impeller seal: compare packing seal sub-impeller seal effect much better, but its complex structure, accessory are more, cost is expensive, according to the information of user feedback, about its half a year in working life.
3, mechanical seal: compare packing seal and sub-impeller seal effect is best, according to the information of user feedback, in about 1 year its working life, mechanical weakness is that cost is high.
Therefore, Pulp pump axle root sealing problem is a difficult problem for puzzlement industrial and mining enterprise always.The axle root sealing problem that can solve Pulp pump has very important practical meaning in engineering.
Chinese patent notification number CN102192184B discloses a kind of Pulp pump, has reduction resistance, reduce the features such as air horsepower, but this Pulp pump still adopts traditional structure and sealing means, and sealing effect is general, and cost compare is high.
The present invention is according to the field experience that have accumulated in Pulp pump field for many years, go out without sealing Pulp pump through experimental study repeatedly, and adopt wear-resistant material silicon carbide to manufacture flow passage components, increase substantially the working life without sealing Pulp pump, reduce the cost, bring larger economic benefit to enterprise.
Summary of the invention
For the determination that in prior art, Pulp pump sealing cost is high, sealing effect is bad, the technical problem to be solved in the present invention is to provide a kind of Pulp pump, can realize effective sealing equally, reduce costs simultaneously.
A kind of Pulp pump, comprise impeller, the pump housing, support, bearing support, pump shaft, Stuffing box, anti-tray, upper ball cover and lower ball cover, the pump housing, support are connected successively with bearing support; Upper ball cover is positioned at the outer end of bearing support, and lower ball cover is positioned at the hollow cavity of support and is arranged on support the inner near bearing support; Stuffing box is set on pump shaft, and Stuffing box is fixedly connected with lower ball cover; Anti-tray is set on pump shaft, and anti-tray arranges near Stuffing box and is fixed on pump shaft; Impeller is positioned at the pump housing, is set in one end of pump shaft, and pump shaft is successively through upper ball cover, bearing support, lower ball cover, Stuffing box, anti-tray, support and the pump housing; At the pump housing and support connecting end surface, the pump housing and support all have through hole, and described through-hole diameter is greater than pump shaft diameter, has gap between through hole and pump shaft.
As further preferably, the hollow cavity two ends of bearing support are provided with bearing, pump shaft by bearings on bearing support.
As further preferred, also comprise axle sleeve and round nut, axle sleeve is set on pump shaft, and one end is near impeller, and the round nut that the other end is screwed around on pump shaft stops, axle sleeve is positioned at the cavity of the pump housing and support simultaneously.
As further preferred, flowing medium is inhaled into the pump housing by described interstitial site.
As further preferably, in the middle of bearing support is longitudinal, there is reinforcement land, between land and bearing support, there is strengthening rib.
As further preferably, have hollow cylinder structure, arrange needle bearing in the hollow cylinder of described Stuffing box in the middle part of Stuffing box, pump shaft is through needle bearing, and Stuffing box does not rotate with pump shaft.
As further preferred, anti-tray is discoid, and middle part has cylindrical structure.
As further preferred, the entrance of flowing medium is arranged on support one end near bearing support, and entry position corresponds to packing box.
Useful effect:
1, because of the Pulp pump employing of researching and developing is without Seal Design, therefore significantly reduces the user cost of Pulp pump, decreases the scram because bad seals causes and maintenance, very considerable to the indirect benefit of applying unit.
2, vertical type non-sealed Pulp pump also has and blocks up advantage without gas, and under supplying the prerequisite that can not meet pump duty instantaneously at flowing medium, air can not to enter in pipeline but to enter in air, therefore can not produce gas and block up, therefore need not delay pump.
3, vertical type non-sealed Pulp pump does not need large cement basis, and only need be placed on above media slot, the pump housing operates in media slot, avoids the leakage of medium, is conducive to industrial hygiene.
4, adopting extraordinary silicon carbide wear-resistant material, long service life without sealing Pulp pump sheath, compared with other material pump sheaths of same model, is 5 ~ 10 times of the rubber sheath life-span, 2 ~ 4 times of alloy sleeve life-span.
5, adopt Vee pulley V transmission without sealing Pulp pump, the rotating speed of pump shaft can be regulated at any time to change pump performance to meet the needs of production.
Accompanying drawing explanation
Fig. 1 is Pulp pump general structure erection drawing;
Fig. 2 is the structural drawing of the pump housing;
1-pump shaft 2-upper ball cover 3-bearing support 4-support 5-lower ball cover 6-Stuffing box 7-anti-tray 8-round nut 9-axle sleeve 10-pump housing 11-impeller 12-impeller is for female 13-axle root.
Embodiment
As shown in Figure 1, together with upper ball cover 2 is bolted with bearing support 3 one end, have through hole in the middle of upper ball cover 2, pass for pump shaft 1, pump shaft 1 is multidiameter shaft.Bearing support 3 is hollow cylinder structure, and bearing support 3 is longitudinally middle has reinforcement land, has strengthening rib between land and bearing support 3.The other end of bearing support 3 is bolted support 4, and support 4 is hollow cylinder structures, and support 4 two ends have flanged surface, and the flange diameter of one end is greater than the flange diameter of the other end, has strengthening rib between large diameter flange and support 4 cylindrical shell.Support 4 Big Diameter Flange face is connected with the pump housing 10 bolt, and the pump housing 10 has approximate rectangular cavity, for holding parts such as impeller 11 grade.Pump shaft 1 is through the central through bore of upper ball cover 2, and through the hollow parts of bearing support 3, support 4, pump shaft 1 one end enters in the rectangular cavities of the pump housing 10, stretches out upper ball cover 2 outside the other end.Two ends in the hollow cavity of bearing support 3 have bearing, pump shaft 1 by bearings in bearing support 3.
Lower ball cover 5 is arranged on minor diameter flange one end of support 4, and in the hollow cavity of support 4, lower ball cover 5 center has hole, and pump shaft 1 is through the center hole of lower ball cover 5.Lower ball cover 5 is separated by the hollow cavity of support 4 and the hollow cavity of bearing support 3.Stuffing box 6 and anti-tray 7 are set on pump shaft 1, and Stuffing box 6 and anti-tray 7 are all positioned at the hollow cavity of support 4, and Stuffing box 6 is fixed on lower ball cover 5, and anti-tray 7, near Stuffing box 5, is fixed on pump shaft 1.
Impeller 11 is positioned at the cavity of the pump housing 10, and impeller 11 is set on pump shaft 1, and this end impeller of pump shaft 1 is screwed on pump shaft 1 for mother, for stopping fixing impeller 11.Also have axle sleeve 9 at the other end of impeller 11, axle sleeve 9 is enclosed within pump shaft 1, and the other end of axle sleeve 9 arranges round nut 8, and round nut 8 is fixed on pump shaft 1, for stopping fixed axle sleeve 9.
The mode of pump chamber is entered according to medium, flowing medium end face traditional for Pulp pump is sucked and transform the suction of axle root as, axle root becomes negative pressure from original malleation, therefore, by to the integrally-built improvement of Pulp pump, even without any sealing, axle root place also there will not be the leakage problem of flowing medium.Pulp pump working principle after improvement is, v belt connects the part that pump shaft leans out out upper ball cover, Pulp pump is driven by motor by Vee pulley V, the entrance of flowing medium is arranged on support one end near bearing support, entry position corresponds to packing box, flowing medium enters from this ingress, through the control of Stuffing box and anti-tray fluid medium, liquid medium sucks the pump housing by axle root (reference character 13 position is axle root), because the approach axis of liquid medium there occurs change, therefore the assembling of impeller is contrary with the assembly direction of traditional Pulp pump.When impeller 11 High Rotation Speed, impeller 11 drives interlobate liquid to rotate together, and due to the effect of centrifugal force, liquid is thrown toward impeller outer edge from impeller central, and kinetic energy also increases thereupon.After liquid enters the pump housing, because the runner in the scroll casing shape pump housing expands gradually, flow rate of liquid reduces gradually, and a part of kinetic energy is static energy, so liquid flows out along exhaust port with higher pressure.
Carry out intensive analysis and research to traditional centrifugal type slurry pump, preferred as one, pump discharge size is respectively 1.5 cun, 2 cun, vertical type non-sealed formula Pulp pump with 3 cun.
This embodiment just embodies the preferred special case of spirit of the present invention, and those skilled in the art completely can according to the purport of patent of the present invention, in addition flexible, has reached best implementation result.Modify to the present invention or equivalent replacement, and do not depart from the spirit and scope of patent of the present invention, it all should be encompassed in the middle of the right of patent of the present invention.
Claims (8)
1. a Pulp pump, comprises impeller, the pump housing, support, bearing support, pump shaft, Stuffing box, anti-tray, upper ball cover and lower ball cover, it is characterized in that: the pump housing, support are connected successively with bearing support; Upper ball cover is positioned at the outer end of bearing support, and lower ball cover is positioned at the hollow cavity of support and is arranged on support the inner near bearing support; Stuffing box is set on pump shaft, and Stuffing box is fixedly connected with lower ball cover; Anti-tray is set on pump shaft, and anti-tray arranges near Stuffing box and is fixed on pump shaft; Impeller is positioned at the pump housing, is set in one end of pump shaft, and pump shaft is successively through upper ball cover, bearing support, lower ball cover, Stuffing box, anti-tray, support and the pump housing; At the pump housing and support connecting end surface, the pump housing and support all have through hole, and described through-hole diameter is greater than pump shaft diameter, has gap between through hole and pump shaft.
2. Pulp pump according to claim 1, is characterized in that: the hollow cavity two ends of bearing support are provided with bearing, pump shaft by bearings on bearing support.
3. Pulp pump according to claim 2, is characterized in that: also comprise axle sleeve and round nut, and axle sleeve is set on pump shaft, and one end is near impeller, and the round nut that the other end is screwed around on pump shaft stops, axle sleeve is positioned at the cavity of the pump housing and support simultaneously.
4. Pulp pump according to claim 3, is characterized in that: flowing medium is inhaled into the pump housing by described interstitial site.
5. Pulp pump according to claim 1, is characterized in that: bearing support is longitudinally middle has reinforcement land, has strengthening rib between land and bearing support.
6. Pulp pump according to claim 2, is characterized in that: have hollow cylinder structure in the middle part of Stuffing box, arranges needle bearing in the hollow cylinder of described Stuffing box, and pump shaft is through needle bearing, and Stuffing box does not rotate with pump shaft.
7. the Pulp pump according to any one of claim 1-6, is characterized in that: anti-tray is discoid, and middle part has cylindrical structure.
8. Pulp pump according to claim 1, is characterized in that: the entrance of flowing medium is arranged on support one end near bearing support, and entry position corresponds to packing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310280514.2A CN103291626B (en) | 2013-07-05 | 2013-07-05 | A kind of Pulp pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310280514.2A CN103291626B (en) | 2013-07-05 | 2013-07-05 | A kind of Pulp pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103291626A CN103291626A (en) | 2013-09-11 |
| CN103291626B true CN103291626B (en) | 2016-04-06 |
Family
ID=49093020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310280514.2A Expired - Fee Related CN103291626B (en) | 2013-07-05 | 2013-07-05 | A kind of Pulp pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103291626B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100216A (en) * | 1987-01-22 | 1988-08-03 | 戴正兴 | Vertically outside installed underliquid pump |
| EP1134424A2 (en) * | 2000-03-17 | 2001-09-19 | KSB Aktiengesellschaft | A seal housing |
| CN2572070Y (en) * | 2002-09-18 | 2003-09-10 | 昆明嘉和泵业有限公司 | Leakage free centrifugal pump |
| CN101158358A (en) * | 2007-11-01 | 2008-04-09 | 安徽省天马泵阀集团有限公司 | White potato delivery pump |
| CN201246309Y (en) * | 2008-08-12 | 2009-05-27 | 闫家林 | Horizontal non-leakage desanding pump |
-
2013
- 2013-07-05 CN CN201310280514.2A patent/CN103291626B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100216A (en) * | 1987-01-22 | 1988-08-03 | 戴正兴 | Vertically outside installed underliquid pump |
| EP1134424A2 (en) * | 2000-03-17 | 2001-09-19 | KSB Aktiengesellschaft | A seal housing |
| CN2572070Y (en) * | 2002-09-18 | 2003-09-10 | 昆明嘉和泵业有限公司 | Leakage free centrifugal pump |
| CN101158358A (en) * | 2007-11-01 | 2008-04-09 | 安徽省天马泵阀集团有限公司 | White potato delivery pump |
| CN201246309Y (en) * | 2008-08-12 | 2009-05-27 | 闫家林 | Horizontal non-leakage desanding pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103291626A (en) | 2013-09-11 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20180705 |