CN2173869Y - Axial force balancing device for high head submerged pump - Google Patents
Axial force balancing device for high head submerged pump Download PDFInfo
- Publication number
- CN2173869Y CN2173869Y CN 93219822 CN93219822U CN2173869Y CN 2173869 Y CN2173869 Y CN 2173869Y CN 93219822 CN93219822 CN 93219822 CN 93219822 U CN93219822 U CN 93219822U CN 2173869 Y CN2173869 Y CN 2173869Y
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- CN
- China
- Prior art keywords
- axial force
- balancing device
- multidiameter shaft
- force balancing
- bearing
- 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 - Fee Related
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Abstract
The utility model relates to an axial force balancing device for a high lift submerged pump. The axial force balance device for the existing submersible pump has the disadvantages of complicated structure, difficult disassembly, assembly and adjustment, nonuniform bearing capability of a multistage thrust shaft, etc. The utility model is composed of a housing, a base, an upper end cover, a multistage bearing seat which is arranged on a stepped shaft and is connected by threads, a thrust bearing, a thrust disk, etc. The utility model can be used as an independent whole to be arranged between a motor and a water pump, the structure is simple, and the adjustment, the assembly and the disassembly are easy. A gap between the thrust bearing and the thrust disk can be adjusted to an optimum state through the adjustment of the bearing seat connected with the threads step by step, which causes each lever rubbing pair to be bore the axial force uniformly. Therefore, the service life of the motor can be extended, and the pump lift can be increased.
Description
The utility model belongs to the axial thrust balancing devices of submersible pump.
During submersible pump work, pump shaft will be subjected to a bigger axial force, and lift is big more, and axial force is big more.The axial force of original submersible pump is directly to be added on the motor shaft because the bearing capacity of motor is limited, institute so that the submersible pump lift also be restricted.Have in the prior art to add thrust bearing in the pump shaft lower end and come balancing axial thrust, the complex structure that this class device has, the processing that has loading and unloading are difficulty relatively, the multistage thrust bearing discontinuity that has.
It is easy to adjust that the utility model aims to provide a kind of loading and unloading, the multistage axial thrust balancing devices of stressed uniform high-lift submersible pump.
For reaching above-mentioned purpose, the utility model adopts following structure: it comprises housing, axle, the thrust bearing friction pair, outside framework oil seal, get rid of sand table, base 1 etc., it is characterized in that: described housing 2 is cylindric for vertical direction, the multidiameter shaft 7 that axle in the described housing reduces step by step for diameter from top to bottom, the multidiameter shaft top and bottom are equipped with can install the flat key 25 that coupling links with Pump Axle and motor shaft respectively, 6, every grade of ladder small diameter part position axial restraint has thrust disc, thrust disc top is stuck in the ladder place, the bottom be provided with the described friction pair of its composition be fixed on thrust bearing on the bearing support with sunk screw, be equipped with vertical cylindrical lateral wall with following periphery above the bearing support, every grade of bearing support upper portion side wall and upper level bearing support lower sides left-hand scyewed joint, lower sides and next stage bearing support upper portion side wall be the left-hand scyewed joint also, next stage bearing support is with fastening with the base 1 of lower housing portion sealing, upper level bearing support top is provided with the upper end cap 17 with housing 2 sealings suitable for reading, upper end cap and multidiameter shaft are slidingly matched, the top is provided with described outside framework oil seal 22, oil sealing top is equipped with and passes that the multidiameter shaft of upper end cap is slidingly matched gets rid of sand table 23, also is provided with the water inlet 18 that makes the water filling hole 26 that is interlinked to the outside in the housing and the housing inner chamber is communicated with friction pair on the upper end cap 17.
This device multidiameter shaft upper end is linked by coupling and Pump Axle, the lower end links by coupling 4 and motor shaft, when motor drives the pump shaft rotation by multidiameter shaft, the axial force of pump shaft passes to thrust disc, thrust bearing, bearing support to base 1 by multidiameter shaft, motor shaft can not bear or bear less downward axial force like this, only bear warping force, thereby can increase water pump vane progression, increase lift.The progression of this device thrust bearing can decide according to the size of axial force, by water injection hole in this device case after the fills with water, can be when work lubricate.
This device can be used as one independently integral installation between motor and water pump, so not needing to add in addition any parts or change structure, original water pump can not install this device additional, can prolong electrical machinery life after installing this device additional, also can increase impeller progression, increase lift, the submersible pump H-Max that this device is installed can reach more than 500 meters, this apparatus structure is simple, adjustment is easy to loading and unloading, can be during assembling by adjusting the bearing support that screw thread links step by step, the optimum state is adjusted in gap between thrust bearing and the thrust disc, made friction pairs at different levels balancedly bear axial force.
Description of drawings:
Fig. 1: the utility model example structure schematic representation.
1, base 2, housing 3, guide bearing
4, coupling 5, spacer ring 6, flat key
7, multidiameter shaft 8, bearing support 9, thrust bearing
10, thrust disc 11, last thrust bearing 12, bearing support
13, thrust bearing 14, thrust disc 15, bearing support
16, go up thrust bearing 17, upper end cap 18, water inlet
19, stainless steel sleeve 20, stainless steel sleeve 21, connection seat
22, outside framework oil seal 23, get rid of sand table 24, water injection hole
25, flat key 26, water injection hole 27, snap ring
The utility model is described in further detail below in conjunction with embodiment:
The thrust disc of present embodiment adopts stainless steel to make, thrust bearing is made with the PTFE anti-wear material, base 1 and housing 2 screw-thread fit, a connection seat 21 is fixed on upper end cap 17 tops, and connection seat is provided with the water injection hole 24 that makes upper end cap water injection hole 26 and exterior.
Top of chamber also is provided with thrust bearing 9 and 16 in next stage bearing support and upper end cap, and its effect is the axial force that makes progress that heeling pump produces when starting.
Multidiameter shaft is with making through the carbon steel of quenching with Subsequent tempering, on the pillow block that itself and upper end cap and outside framework oil seal are slidingly matched stainless steel sleeve 19 and 20 is housed, abrasion-proof corrosion-proof, and can in operation process, not produce " seize " phenomenon.
Present embodiment cylindrical shell upper end-hole is inside curved 90 ° snap ring 27, is stuck in the corresponding annular groove of upper end cap, and when base and lower housing portion were tightened, snap ring 27 promptly compressed upper end cap downwards, will seal around the housing top.
Claims (9)
1, diving pump axial force balancing device, it comprises housing, axle, the thrust bearing friction pair, outside framework oil seal, get rid of sand table, base etc., it is characterized in that: described housing is that vertical direction is cylindric, the multidiameter shaft that axle in the described housing reduces step by step for diameter from top to bottom, the multidiameter shaft top and bottom are equipped with can install the flat key that coupling links with Pump Axle and motor shaft respectively, every grade of ladder small diameter part position axial restraint has thrust disc, thrust disc top is stuck in the ladder place, the bottom be provided with the described friction pair of its composition be fixed on thrust bearing on the bearing support with sunk screw, be equipped with vertical cylindrical lateral wall with following periphery above the bearing support, every grade of bearing support upper portion side wall and upper level bearing support lower sides left-hand scyewed joint, lower sides and next stage bearing support upper portion side wall be the left-hand scyewed joint also, next stage bearing support is with fastening with the base of lower housing portion sealing, upper level bearing support top is provided with the upper end cap with housing sealing suitable for reading, upper end cap and ladder are slidingly matched, the top is provided with described outside framework oil seal, the sand table that gets rid of that the multidiameter shaft of upper end cap is slidingly matched is equipped with and passes on oil sealing top, also is provided with the water inlet that makes the water filling hole that is interlinked to the outside in the housing and the housing inner chamber is communicated with friction pair on the upper end cap.
2, diving pump axial force balancing device as claimed in claim 1 is characterized in that: top of chamber is provided with thrust bearing in described next stage bearing support and upper end cap.
3, diving pump axial force balancing device as claimed in claim 1 or 2 is characterized in that: on the pillow block that described multidiameter shaft and upper end cap and outside framework oil seal are slidingly matched stainless steel sleeve is housed.
4, diving pump axial force balancing device as claimed in claim 1 or 2 is characterized in that: described cylindrical shell upper end-hole is stuck in the corresponding annular groove of upper end cap for inside curved 90 ° snap ring.
5, diving pump axial force balancing device as claimed in claim 3 is characterized in that: described cylindrical shell upper end-hole is stuck in the corresponding annular groove of upper end cap for inside curved 90 ° snap ring.
6, diving pump axial force balancing device as claimed in claim 1 or 2 is characterized in that: described base is provided with the guide bearing that can cooperate with the clutch slips on being enclosed within multidiameter shaft at the position that multidiameter shaft passes it.
7, diving pump axial force balancing device as claimed in claim 3 is characterized in that: described base is provided with the guide bearing that can cooperate with the clutch slips on being enclosed within multidiameter shaft at the position that multidiameter shaft passes it.
8, diving pump axial force balancing device as claimed in claim 4 is characterized in that: described base is provided with the guide bearing that can cooperate with the clutch slips on being enclosed within multidiameter shaft at the position that multidiameter shaft passes it.
9, diving pump axial force balancing device as claimed in claim 5 is characterized in that: described base is provided with the guide bearing that can cooperate with the clutch slips on being enclosed within multidiameter shaft at the position that multidiameter shaft passes it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219822 CN2173869Y (en) | 1993-07-31 | 1993-07-31 | Axial force balancing device for high head submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219822 CN2173869Y (en) | 1993-07-31 | 1993-07-31 | Axial force balancing device for high head submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2173869Y true CN2173869Y (en) | 1994-08-10 |
Family
ID=33799127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93219822 Expired - Fee Related CN2173869Y (en) | 1993-07-31 | 1993-07-31 | Axial force balancing device for high head submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2173869Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606537A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Containment spray pump |
| CN102852847A (en) * | 2012-08-15 | 2013-01-02 | 南京尤孚泵业有限公司 | Lower thrust device for submersible pump |
-
1993
- 1993-07-31 CN CN 93219822 patent/CN2173869Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606537A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Containment spray pump |
| CN102852847A (en) * | 2012-08-15 | 2013-01-02 | 南京尤孚泵业有限公司 | Lower thrust device for submersible pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |