CN209976867U - Adjustable guide bearing mechanism of large vertical shaft open type water pump - Google Patents
Adjustable guide bearing mechanism of large vertical shaft open type water pump Download PDFInfo
- Publication number
- CN209976867U CN209976867U CN201920777097.5U CN201920777097U CN209976867U CN 209976867 U CN209976867 U CN 209976867U CN 201920777097 U CN201920777097 U CN 201920777097U CN 209976867 U CN209976867 U CN 209976867U
- Authority
- CN
- China
- Prior art keywords
- guide bearing
- water pump
- positioning
- upper flange
- positioning ring
- 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a guide bearing mechanism with adjustable large-scale vertical scroll open type water pump, including lower guide bearing, position circle, positioning bolt, lock nut and locating pin, lower guide bearing's lower flange passes through positioning bolt and lock nut and the fixed locking of position circle circumferencial direction, and lower guide bearing's upper flange is fixed on the internal hub upper flange of guide vane to fix a position with the locating pin. The positioning ring is fixed on the lower flange of the hub in the guide vane body through the positioning ring fixing spigot and the positioning ring fastening bolt. The upper flange of the lower guide bearing is fixed on the upper flange of the hub in the guide vane body through bolts and is positioned by a positioning pin. Compared with the prior art, the utility model provides the convenience of water pump installation and dismantlement, reduced installation and maintenance construction work volume.
Description
Technical Field
The utility model relates to an adjustable guide bearing mechanism especially relates to guide bearing mechanism with adjustable large-scale vertical scroll open type water pump.
Background
The large vertical shaft open type water pump usually adopts a sliding bearing as the radial support of a rotor, and generally adopts two guide bearings, one guide bearing is arranged at the upper part of a top cover, and the other guide bearing is arranged in a guide vane body inner hub at the lower part close to an impeller.
In the prior art, the upper and lower guide bearings adopt an installation method that: and after the concentricity and the clearance between the inner hole of the guide bearing and the pump shaft are adjusted on site on the upper guide bearing, a fastening bolt is installed and a positioning pin is matched, and the lower guide bearing and the guide vane body are positioned by adopting a rabbet and fastened by the bolt.
Because the large vertical shaft open type water pump has special structural characteristics, the guide vane body and the impeller chamber need to be hung in the pump pit together after being connected between the installation rooms, an installer cannot go down into the pump pit to finely adjust the radial position of the impeller chamber relative to the guide vane body to adjust the gap uniformity between the vanes and the impeller chamber, the gap uniformity between the vanes and the impeller chamber can be adjusted only by adjusting the radial position of the rotor or integrally adjusting the radial positions of the guide vane body and the impeller chamber, the inner hole of the lower guide bearing and the rotor can have uneven gaps after adjustment, and the problem cannot be solved on the site in a construction site generally. The lower guide bearing is returned to the factory to reduce the size of the spigot and then sent to the construction site after the adjustment, the lower guide bearing and the guide blade body are connected after the adjustment, an upper flange and a guide blade body positioning pin are matched, and the lower flange is not limited in the radial direction, so that the guide effect of the guide bearing on the pump shaft is influenced. The method has large workload, needs factory return for repair, and influences the site installation and construction of a construction site; meanwhile, the design size of the raw water pump is changed, the construction time is delayed, the quality of the product is affected, even the product cannot pass the inspection and acceptance, and the construction period is affected. Therefore, an adjustable guide bearing mechanism which is convenient to adjust and small in construction amount on site is needed.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a large-scale vertical scroll open water pump is with adjustable lead bearing mechanism to realize the on-the-spot convenient operation of building site.
The technical scheme is as follows: the adjustable guide bearing mechanism of the utility model comprises a lower guide bearing, a positioning ring, a positioning bolt, a locking nut and a positioning pin; the lower flange of the lower guide bearing is fixedly locked with the positioning ring in the circumferential direction through a positioning bolt and a locking nut, and the upper flange of the lower guide bearing is fixed on the upper flange of the hub in the guide vane body and is positioned by a positioning pin.
The positioning ring is fixed on the lower flange of the hub in the guide vane body through the positioning ring fixing spigot and the positioning ring fastening bolt.
The upper flange of the lower guide bearing is fixed on the upper flange of the hub in the guide vane body through bolts and is positioned by a positioning pin.
The working principle is as follows: the utility model discloses in the water pump installation, lower guide bearing is adjusted at water pump rotor installation and is gone on the installation and adjust with one heart back, and guide bearing and pump shaft are concentric after adjusting well down, fix a position and the locking with position circle, positioning bolt, lock nut and locating pin to lower guide bearing.
Has the advantages that: in the guide bearing mechanism in the prior art, in order to ensure the concentricity of a guide vane body lower guide bearing matching gear and an impeller chamber spherical center by depending on the machining precision of a machine tool, then the lower guide bearing is arranged in a guide vane body by a spigot in a factory and matched with a positioning pin, once a pump shaft and the guide bearing are not concentric in a construction site, the lower guide bearing needs to be returned to the factory to machine the spigot and matched with the positioning pin after being regulated on the site again, so that labor and time are wasted, and the design and supervision examination and approval are required. Compared with the prior art, the utility model discloses adjustable guide bearing mechanism can make things convenient for once only to lead the concentricity of bearing and pump shaft under the adjustment of building site scene, joins in marriage and beats the locating pin, has promoted the convenience of water pump installation and dismantlement, has reduced installation and maintenance construction work volume.
Drawings
Fig. 1 is a schematic structural view of an adjustable guide bearing mechanism of the present invention;
fig. 2 is an installation schematic diagram of the present invention.
Detailed Description
As shown in fig. 1, the adjustable guide bearing mechanism includes a lower guide bearing 1, a positioning ring 2, a positioning bolt 3, a lock nut 4, and a positioning pin 5. The lower flange 1-2 of the lower guide bearing 1 is fixedly locked with the positioning ring 2 in the circumferential direction through a positioning bolt 3 and a locking nut 4, and the upper flange 1-1 of the lower guide bearing 1 is fixed on the upper flange a of the inner hub of the guide vane body through a fastening bolt and is positioned by a positioning pin 5.
When the device is installed and used on site, the guide vane body, the impeller chamber and the impeller are integrally connected and then hung in a pump pit, the level and the concentricity are adjusted, the pump shaft and the impeller are connected, the clearance between the impeller and the impeller chamber is adjusted, according to the adjusted state, fixing a positioning ring fastening bolt 2-1 and a positioning ring fixing seam allowance 2-2 on a lower flange b of the guide vane inner hub, hanging and installing a lower guide bearing 1 in the guide vane inner hub, according to the adjusted state of the pump shaft, the gap between the inner hole of the lower guide bearing 1 and the pump shaft is adjusted to ensure that the gap between the inner hole of the lower guide bearing 1 and the pump shaft is uniform and meets the requirement, an upper flange 1-1 of the lower guide bearing 1 and an upper flange a of an inner hub of a guide vane body are fixed by bolts, a lower seam allowance of the lower guide bearing 1 is stopped by a positioning bolt 3 and a locking nut 4, and the locking nut is spot-welded, and a positioning pin 5 is arranged between the upper flange 1-1 of the lower guide bearing 1 and the guide vane body matching flange. An adjusting clearance with a single side of 0-5 mm is reserved between an upper spigot of the lower guide bearing 1 and a guide vane bearing stop c. A single-side adjusting gap of 0-8 mm is reserved between a lower spigot of the lower guide bearing 1 and a bearing stop d of the positioning ring.
Claims (5)
1. The utility model provides a large-scale vertical scroll open type water pump adjustable guide bearing mechanism which characterized in that: the device comprises a lower guide bearing (1), a positioning ring (2), a positioning bolt (3), a locking nut (4) and a positioning pin (5); the lower flange (1-2) of the lower guide bearing (1) is fixedly locked with the positioning ring (2) in the circumferential direction through a positioning bolt (3) and a locking nut (4), and the upper flange (1-1) of the lower guide bearing (1) is fixed on the upper flange (a) of the hub in the guide vane body and is positioned by a positioning pin (5).
2. The adjustable guide bearing mechanism of a large vertical shaft open water pump according to claim 1, characterized in that: the positioning ring (2) is fixed on the lower hub flange (b) in the guide vane body through a positioning ring fixing spigot (2-2) and a positioning ring fastening bolt (2-1).
3. The adjustable guide bearing mechanism of a large vertical shaft open water pump according to claim 1, characterized in that: an upper flange (1-1) of the lower guide bearing (1) is fixed on an upper flange of the inner hub of the guide vane body through bolts and is positioned by a positioning pin (5).
4. A large vertical shaft open water pump adjustable guide bearing mechanism according to any one of claims 1 to 3, characterized in that: and an adjusting clearance with a single side of 0-5 mm is reserved between the upper stop of the lower guide bearing (1) and the guide vane body bearing stop (c).
5. A large vertical shaft open water pump adjustable guide bearing mechanism according to any one of claims 1 to 3, characterized in that: and a single-side adjusting gap of 0-8 mm is reserved between the lower spigot of the lower guide bearing (1) and the bearing stop (d) of the positioning ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920777097.5U CN209976867U (en) | 2019-05-28 | 2019-05-28 | Adjustable guide bearing mechanism of large vertical shaft open type water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920777097.5U CN209976867U (en) | 2019-05-28 | 2019-05-28 | Adjustable guide bearing mechanism of large vertical shaft open type water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209976867U true CN209976867U (en) | 2020-01-21 |
Family
ID=69264203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920777097.5U Active CN209976867U (en) | 2019-05-28 | 2019-05-28 | Adjustable guide bearing mechanism of large vertical shaft open type water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209976867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043505A (en) * | 2019-05-28 | 2019-07-23 | 江苏航天水力设备有限公司 | The adjustable guide bearing mechanism of large-sized vertical shaft open type water pump |
-
2019
- 2019-05-28 CN CN201920777097.5U patent/CN209976867U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043505A (en) * | 2019-05-28 | 2019-07-23 | 江苏航天水力设备有限公司 | The adjustable guide bearing mechanism of large-sized vertical shaft open type water pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204195185U (en) | A kind of aero-engine low-pressure turbine assembling detection device | |
| CN209976867U (en) | Adjustable guide bearing mechanism of large vertical shaft open type water pump | |
| CN109128718B (en) | Manufacturing method of mechanical type steam compressor combined diffuser | |
| US20190017552A1 (en) | Clamping apparatus for positioning a main bearing of a wind turbine during an installation and/or repair procedure | |
| CN102606374A (en) | Adjustable low-pressure water turbine special for cooling tower | |
| CN219911268U (en) | Energy-saving device for adjusting pre-rotation flow at inlet of centrifugal pump | |
| CN108526882B (en) | Multifunctional cylinder type water guide mechanism assembly tool for vertical unit | |
| CN205154735U (en) | Water pump with novel leaf wheel clearance adjusting device | |
| CN204729282U (en) | Diaphragm pump testing apparatus | |
| CN110043505A (en) | The adjustable guide bearing mechanism of large-sized vertical shaft open type water pump | |
| CN203887677U (en) | Lower plate driving structure of plane grinding machine | |
| CN201950471U (en) | Machine tool rotary platform | |
| CN217539104U (en) | Centrifugal pump adjustable preposed guide vane device capable of widening high-efficiency area | |
| CN207777053U (en) | A kind of hydraulic turbine integral type axial force self-balancing rotor assembly | |
| CN203081832U (en) | Impeller clearance adjusting device of slurry pump | |
| CN207393536U (en) | The intelligent barring gear of large vertical water pumps unit maintenance | |
| CN206386299U (en) | A kind of horizontal middle open type centrifugal multistage pump multiple centrifugal pump axial direction positioning device | |
| CN211117108U (en) | Main pump integrated three-liquid-tank radial water guide bearing bush | |
| CN207777062U (en) | A kind of integral type hydraulic turbine automatic flow rate adjusting device | |
| CN208073856U (en) | A kind of vertical long impeller of pump fixed structure | |
| CN208289377U (en) | Center adjusts tool when hydrogenerator upper spider is installed | |
| CN105485024A (en) | Self-suction centrifugal water pump | |
| CN103894920A (en) | Lower plate driving structure of plane grinder | |
| CN214373311U (en) | Accurate centering structure for vertical rotor tester | |
| CN203604265U (en) | Large horizontal partition welding cantilever volute |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |