CN201047353Y - LC single stage centrifugal pump capable of adjusting inter space of axial direction of pump axle - Google Patents
LC single stage centrifugal pump capable of adjusting inter space of axial direction of pump axle Download PDFInfo
- Publication number
- CN201047353Y CN201047353Y CNU2007200852666U CN200720085266U CN201047353Y CN 201047353 Y CN201047353 Y CN 201047353Y CN U2007200852666 U CNU2007200852666 U CN U2007200852666U CN 200720085266 U CN200720085266 U CN 200720085266U CN 201047353 Y CN201047353 Y CN 201047353Y
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- bearing
- pump
- pump shaft
- shaft
- axle
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- Expired - Fee Related
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Abstract
The utility model discloses an LC single step centrifugal pump which can adjust an axial clearance of a pump shaft. The utility model is characterized in that a bearing box (8) is fixedly arranged on a bracket; a pump shaft (1) with two ends provided with bearings are arranged in a bearing seat on the bearing box (8); one end of an axial adjusting bolt (9) is arranged in a hole on a connecting plate (16) under the pump shaft box (8); the other end thereof is arranged on an end plate of the bracket (2); a pump cover (18) is fixedly arranged on the bracket (2); an impeller positioning sleeve (21) is sleeved on the pump shaft (1); by the positioning of a shaft shoulder, a mechanical sealing component device (20) is sleeved and arranged on a shaft; by the fix connection between the pump cover and the mechanical sealing component device (20), an impeller is fixedly arranged on a pump shaft head. The axial clearance of the pump shaft is easy to be adjusted. The utility model avoids the parts to be severely abraded in a medium, prolongs the service life of the pump, and improves the production efficiency of the pump. With reasonable design and good effect after commissioning, the pump can generate a certain economic and social benefits after being generalized and applied.
Description
Technical field
The utility model relates to a kind of electronic product, is a kind of LC single stage centrifugal pump of adjustable pump shaft axial clearance specifically.
Background technique
In the existing pump structure, because motor rotates the drive pump shaft and impeller rotates together, pump shaft is installed on casing or the housing, can wear and tear in long-term operation, make the gap between impeller and the pump case strengthen, cause volumetric loss to strengthen, pump efficiency reduces, in addition in the process of making pump and installation, the axial error that is produced can't be adjusted, and wearing and tearing can make the axial error of pump strengthen, and cause shorten the working life of pump, even cause pump to scrap.
Summary of the invention
The purpose of this utility model is to overcome the existing pump structure and exists unreasonable, axial clearance is difficult to adjust, cause problem such as component serious wear, life-span in medium be not high and designs a kind of LC single stage centrifugal pump of adjustable pump shaft axial clearance, this pump structure can carry out the adjustment of pump shaft axial clearance, prolong the working life of pump, the production high efficiency that keeps recycle pump, the use of the pump that makes are more economically and environmental protection.
The technological scheme that the utility model adopted is: a kind of LC single stage centrifugal pump of adjustable pump shaft axial clearance, by pump shaft, carriage, the pump shaft case, the rear bearing pressure ring, the axial adjustment bolt, flinger ring, front and back bearings, the front and back bearings gland, locking nut, axle sleeve, liquid throwing plate is formed, it is characterized in that: bearing housing (8) is fixed on the carriage, the pump shaft (1) that two ends are equipped with bearing is installed in bearing housing (8) upper bearing bracket, axial adjustment bolt (9) one ends are installed in below the pump shaft case (8) in the hole on the connecting plate (16), and the other end is installed on carriage (2) one end plates; Pump cover (18) is fixed on the carriage (2), impeller setting sleeve (21) is enclosed within on the axle (1), locate by the shaft shoulder, mechanical sealing assembly device (20) cover is installed on the axle, by being connected and fixed with pump cover, again with impeller set on spindle nose, locate by impeller setting sleeve (21), compress tapered cap (23), impeller bolt is passed tapered cap be tightened on the axle, impeller and axle is fixing.
The pump shaft (1) of a kind of adjustable pump shaft axial clearance LC single stage centrifugal pump described in the utility model is provided with keyway, two ends are provided with the bearings mounted axle journal and the location shaft shoulder, bearing (6,12) be installed in respectively on the axle journal at pump shaft (1) two ends, bearing is located in respectively in bearing housing (8) the two end axles bearing, bearing pressure ring (11) is installed in respectively on the semicircle bearing support in bearing housing (8) two ends with bolt or screw, with bearing (6,12) be fixed in the bearing support respectively, bearing (6 is being installed, 12) on the two ends pump shaft axle journal, flinger ring (7,10) be set on the pump shaft of pump shaft (1) two ends, bearing (6,12) be adjacent to flinger ring (7 respectively, 10), locate by the shaft shoulder, bearing gland (5,13) be enclosed within on pump shaft (1) two end axles, bearing gland (5,13) be installed in respectively on the end face at bearing housing two ends with bolt (15), the liquid throwing plate (14) that will be provided with center hole again is enclosed within on the axle, withstand bearing interstage sleeve (4), and lock with nut (3).
Pump shaft case described in the utility model (8), below bearing housing (8), be provided with connecting plate or gusset (16), one distolateral plate of connecting plate (16) and carriage (2) is provided with the hole, axial adjustment screw rod (9) two ends are respectively equipped with screw thread, screw rod (9) one ends are contained in the hole on the connecting plate (16), on the screw rod (9) of connecting plate (16) both sides, nut is installed again, two nuts are with on screw rod (9) the locking connecting plate (16), screw rod (9) the other end is installed in the screw on the carriage one distolateral plate, on the nut screw rod is fixed on the carriage one distolateral plate.
Pump shaft case described in the utility model (8) bearings at both ends hole is interlocked by top pressure ring or bearing support gland (11) and semi-circular recesses on bearing housing (8) two ends, and installs and fixes with bolt and to constitute bearing hole together.
The beneficial effects of the utility model are, overcoming the existing pump structure exists axial clearance to be difficult to adjust, avoid problems such as component serious wear, life-span in medium be not high, prolonged the working life of pump, improved the production high efficiency of recycle pump, this pump structure is reasonable in design, easy to adjust, after trial effect good, applies, can produce certain economic and social benefit.
Description of drawings
The utility model is described in further detail to engage drawings and Examples below
Fig. 1 is carriage of the present utility model and pump shaft box structure schematic representation
Fig. 2 is carriage and pump shaft case and pump body structure schematic representation.
1. pump shafts in Fig. 1,2. carriage, 3. locking nut, 4. axle sleeve, 5. bearing gland, 6. bearing, 7. flinger ring, 8. bearing housing, 9. axial adjustment screw rod, 10. flinger ring, 11. rear bearing pressure rings, 12. bearings, 13. bearing glands, 14. locking nuts, 15. bolt, 16. connecting plates or gusset, 17. liquid throwing plates, 18. front pump covers, 19. impeller, 20. mechanical sealing assembly devices (20), 21 impeller setting sleeves, 22. impeller bolts, 23. tapered cap, 24. pump housings, 25. flanges.
The specific embodiment mode of execution
In the embodiment shown in fig. 1, front pump cover (18), the pump housing (24), bearing housing or housing (8) are fixed on the carriage with bolt, and bearing housing (8) rear and front end is provided with bearing hole.The pump shaft that two ends is equipped with bearing is installed in the hole.
Pump shaft (1) is provided with screw thread (screw thread), the shaft shoulder and keyway, and flinger ring (7,10) is set on the axle journal of pump shaft (1) two ends, near flinger ring (7,10) bearing (6,12) is housed respectively; On bearing (6) one end pump shafts, be provided with axle sleeve (4), with bolt axle sleeve (4) is sleeved on the pump shaft (1), bearing gland (5) center hole is sleeved on the axle sleeve (4), with bolt bearing gland (5) is gone up on the end face of bearing housing (8) one ends, under the effect of the shaft shoulder, the liquid throwing plate (17) that will be provided with seal ring again is enclosed within on bearing gland (5) the back pump shaft (1), locking nut (3) is gone up on pump shaft (1), with liquid throwing plate (17), under axle sleeve (4) and the shaft shoulder effect bearing (6) is locked, on pump shaft (1), under the effect of seal ring, pump shaft (1) and axis hole are sealed on the locking nut.Be provided with screw thread on the pump shaft (1) that bearing (12) one ends are installed, locking nut (14) is gone up on pump shaft (1), under the effect of locking nut (14), the shaft shoulder and bearing gland (13) bearing (12) is locked.
Below bearing housing (8), be provided with connecting plate or gusset (16), one distolateral plate of connecting plate (16) and carriage (2) is provided with the hole, axial adjustment screw rod (9) two ends are respectively equipped with screw thread, screw rod (9) one ends are contained in the hole on the connecting plate (16), go up the installation nut at the screw rod (9) of connecting plate (16) both sides, two nuts are on screw rod (9) the locking connecting plate (16), and screw rod (9) the other end is installed in the screw on the carriage one distolateral plate, and nut is fastened on screw rod on the carriage side plate.
Front pump cover (18) is fixed on the carriage (2), impeller setting sleeve (21) is enclosed within on the pump shaft (1), locate by the shaft shoulder, mechanical seal (20) is sleeved on the pump shaft,, again impeller set is contained on pump shaft (1) termination by being connected and fixed with pump cover, locate by impeller setting sleeve (21), press tapered cap (23), impeller bolt was advanced tapered cap be tightened on the axle, impeller and pump shaft (1) is fixing.Be installed in following screw rod (9) upper cap nut of bearing housing (8) by adjustment, bearing housing (8) and carriage relative position are changed, make the gap between impeller (19) and the pump cover (18) reach designing requirement, after adjustment finishes the pump housing (24) is anchored on the front pump cover (18), be fixed on the carriage by double threaded screw, at last the bolt on the pressure ring is tightened, made pressure ring that bearing housing is pressed abd fixed on the carriage.Flange (25) inserts the pump housing and drains in the hole, is fixed on the pump housing (24) by double threaded screw, and the slurries that deposit in being used for the pump housing when the maintenance pump drain.
Adjusting method: unload the bolt on the bearing pressure ring, variation and adjusting by the nut relative position on the adjusting screw rod realize in proper order, position regulation finish the back with bearing pressure ring (4) by being bolted on the carriage, guarantee that the relative position between impeller and the pump cover and the pump housing meets the requirements.
Claims (4)
1. the LC single stage centrifugal pump of an adjustable pump shaft axial clearance, form by pump shaft, carriage, pump shaft case, rear bearing pressure ring, axial adjustment bolt, flinger ring, front and back bearings, front and back bearings gland, locking nut, axle sleeve, liquid throwing plate, it is characterized in that: bearing housing (8) is fixed on the carriage, the pump shaft (1) that two ends are equipped with bearing is installed in bearing housing (8) upper bearing bracket, axial adjustment bolt (9) one ends are installed in below the pump shaft case (8) in the hole on the connecting plate (16), and the other end is installed on carriage (2) one end plates; Pump cover (18) is fixed on the carriage (2), impeller setting sleeve (21) is enclosed within on the axle (1), locate by the shaft shoulder, mechanical sealing assembly device (20) is sleeved on the axle, by being connected and fixed with pump cover, again with impeller set on spindle nose, locate by impeller setting sleeve (21), compress tapered cap (23), impeller bolt is pierced into tapered cap be tightened on the axle, impeller and axle is fixing.
2. a kind of adjustable pump shaft axial clearance LC single stage centrifugal pump according to claim 1, it is characterized in that: pump shaft (1) is provided with keyway, two ends are provided with the bearings mounted axle journal and the location shaft shoulder, bearing (6,12) be installed in respectively on the axle journal at pump shaft (1) two ends, bearing is located in respectively in bearing housing (8) the two end axles bearing, bearing pressure ring (11) is installed in respectively on the semicircle bearing support in bearing housing (8) two ends with bolt, with bearing (6,12) be fixed in the bearing support respectively, bearing (6 is being installed, 12) on the two ends pump shaft axle journal, flinger ring (7,10) be set on the pump shaft of pump shaft (1) two ends, bearing (6,12) be adjacent to flinger ring (7 respectively, 10), locate by the shaft shoulder, bearing gland (5,13) be enclosed within on pump shaft (1) two end axles, bearing gland (5,13) be installed in respectively on the end face at bearing housing two ends with bolt (15), the liquid throwing plate (14) that will be provided with center hole again is sleeved on the axle, withstands bearing interstage sleeve (4), and locks with nut (3).
3. a kind of adjustable pump shaft axial clearance LC single stage centrifugal pump according to claim 1, it is characterized in that: below bearing housing (8), be provided with connecting plate or gusset (16), one distolateral plate of connecting plate (16) and carriage (2) is provided with the hole, axial adjustment screw rod (9) two ends are respectively equipped with screw thread, screw rod (9) one ends are contained in the hole on the connecting plate (16), on the screw rod (9) of connecting plate (16) both sides, nut is installed, two nuts are with on screw rod (9) the locking connecting plate (16), screw rod (9) the other end is installed in the screw on the carriage one distolateral plate, on the nut screw rod is fixed on the carriage one distolateral plate.
4. a kind of adjustable pump shaft axial clearance LC single stage centrifugal pump according to claim 1, it is characterized in that: pump shaft case (8) bearings at both ends hole is interlocked by top pressure ring or bearing support gland (11) and semi-circular recesses on bearing housing (8) two ends, and installs and fixes with bolt and to constitute bearing hole together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200852666U CN201047353Y (en) | 2007-06-13 | 2007-06-13 | LC single stage centrifugal pump capable of adjusting inter space of axial direction of pump axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200852666U CN201047353Y (en) | 2007-06-13 | 2007-06-13 | LC single stage centrifugal pump capable of adjusting inter space of axial direction of pump axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047353Y true CN201047353Y (en) | 2008-04-16 |
Family
ID=39299933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200852666U Expired - Fee Related CN201047353Y (en) | 2007-06-13 | 2007-06-13 | LC single stage centrifugal pump capable of adjusting inter space of axial direction of pump axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047353Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242727A (en) * | 2010-05-10 | 2011-11-16 | 襄樊五二五泵业有限公司 | Bearing box of heavy slurry pump and shafting transmission structure thereof |
| CN103119304A (en) * | 2010-07-21 | 2013-05-22 | Itt制造企业有限责任公司 | Pump designed for installation conversion |
| CN104314859A (en) * | 2014-08-27 | 2015-01-28 | 天津中环电子照明科技有限公司 | Impeller positioning method for micro rotary mechanical pump |
| CN108443213A (en) * | 2018-05-11 | 2018-08-24 | 安徽凯特泵业有限公司 | Pump shaft axial position regulating mechanism |
| CN114087201A (en) * | 2021-11-01 | 2022-02-25 | 安徽凯特泵业有限公司 | Slurry pump capable of adjusting gaps between impeller and sheath and between impeller and protective plate |
-
2007
- 2007-06-13 CN CNU2007200852666U patent/CN201047353Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242727A (en) * | 2010-05-10 | 2011-11-16 | 襄樊五二五泵业有限公司 | Bearing box of heavy slurry pump and shafting transmission structure thereof |
| CN102242727B (en) * | 2010-05-10 | 2013-04-24 | 襄樊五二五泵业有限公司 | Bearing box of heavy slurry pump and shafting transmission structure thereof |
| CN103119304A (en) * | 2010-07-21 | 2013-05-22 | Itt制造企业有限责任公司 | Pump designed for installation conversion |
| CN103119304B (en) * | 2010-07-21 | 2016-05-18 | Itt制造企业有限责任公司 | Be designed for the pump that conversion is installed |
| CN104314859A (en) * | 2014-08-27 | 2015-01-28 | 天津中环电子照明科技有限公司 | Impeller positioning method for micro rotary mechanical pump |
| CN108443213A (en) * | 2018-05-11 | 2018-08-24 | 安徽凯特泵业有限公司 | Pump shaft axial position regulating mechanism |
| CN114087201A (en) * | 2021-11-01 | 2022-02-25 | 安徽凯特泵业有限公司 | Slurry pump capable of adjusting gaps between impeller and sheath and between impeller and protective plate |
| CN114087201B (en) * | 2021-11-01 | 2023-08-08 | 安徽凯特泵业有限公司 | Slurry pump capable of adjusting gap between impeller, sheath and guard plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20130613 |