CN203285716U - Dynamic bearing cover for submersible sewage pump - Google Patents
Dynamic bearing cover for submersible sewage pump Download PDFInfo
- Publication number
- CN203285716U CN203285716U CN2013202490913U CN201320249091U CN203285716U CN 203285716 U CN203285716 U CN 203285716U CN 2013202490913 U CN2013202490913 U CN 2013202490913U CN 201320249091 U CN201320249091 U CN 201320249091U CN 203285716 U CN203285716 U CN 203285716U
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- dynamic bearing
- bearing cover
- cover body
- bearing
- dynamic
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- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a dynamic bearing cover for a submersible sewage pump. The dynamic bearing cover comprises a dynamic bearing cover body installed on a motor shaft through interference fit, a motor upper end cover and a bearing. The inner end face and the outer end face of the dynamic bearing cover body are respectively provided with a sunken part. The outer circle of the dynamic bearing cover body is provided with trapezoidal threads. A gap is reserved between the outer circle of the dynamic bearing cover body and the motor upper end cover. The dynamic bearing cover prolongs the service life of the motor shaft, eliminates the mechanical loss of this part, improves efficiency of the pump and heat-dissipation effect of the bearing, prolongs interval time of maintaining the bearing and supplementing lubricating grease, and lowers operation maintenance cost of the pump. Moreover, the gap matched between the outer circle of the dynamic bearing cover body and the upper end cover forms a labyrinth seal structure, the trapezoidal threads are right-hand threads and enable the leaked lubricating grease to move in the reverse direction in the rotation process, and therefore leakage of the bearing lubricating grease is reduced.
Description
Technical field
The utility model relates to the submerged pump part field, specifically a kind of submerged pump dynamic bearing lid.
Background technique
At present, submerged pump has been widely used in sewage and has pumped and processed association area.Submerged pump bearing in the running will bear huge axial and radial load, and the life-span of bearing, the intensity of axle directly affect the stable operation of equipment.On market, the submersible motor motor side bearing of submerged pump location and oil sealing, adopt bearing gland to join outside framework oil seal more.
Its structure is as follows:
(1), submerged pump bearing inner race left and right end is located with the shaft shoulder, end ring respectively.
(2), submerged pump bearing outer ring integral installation and motor upper cover, right-hand member is located by bearing gland.
(3). the in-built outside framework oil seal of submerged pump bearing gland.
Its drawback is as follows:
(1), outside framework oil seal and motor shaft frictional force larger, additionally consume power of motor, reduce the efficiency of pump.
(2), outside framework oil seal and motor shaft friction, use for a long time to the motor shaft wearing and tearing and form groove, intensity and the working life of axle reduce greatly, have increased the operation expense of equipment.
(3), the outside framework oil seal wear out failure, it is too fast that bearing grease runs off, and shortened Maintenance and Repair interval times.
(4), the assembling of bearing gland and outside framework oil seal is complicated, assemble the improper outside framework oil seal that very easily damages, and causes the outside framework oil seal inefficacy.
The model utility content
The purpose of this utility model is to provide that a kind of efficiency is higher, and sealing effect is better, the submerged pump dynamic bearing lid that the life-span is longer.
The technical solution of the utility model is as follows:
A kind of submerged pump dynamic bearing lid, include the dynamic bearing that is arranged on motor shaft by interference fit and cover body, motor upper cover and bearing, it is characterized in that: have respectively depressed part on the inside and outside end face of described dynamic bearing lid body, the cylindrical of dynamic bearing lid body is provided with trapezoidal thread, and has gap between the cylindrical of dynamic bearing lid body and motor upper cover.
Described submerged pump dynamic bearing lid, it is characterized in that: described trapezoidal thread is right-handed thread.
The beneficial effects of the utility model:
(1), dynamic bearing lid body interior edge face coordinates with the shaft shoulder and the bearing inner race of motor shaft respectively, play the effect of axially locating bearing, in running, dynamic bearing lid body and motor shaft together rotate, do not produce relative movement, avoided in the original structure causing because of outside framework oil seal and motor shaft friction the damage of axle, working life of having improved motor shaft, also eliminate the mechanical loss of this part, improved the efficiency of pump.
(2), the inside and outside end face of dynamic bearing lid body has respectively depressed part, depressed part on interior edge face and bearing fit form cavity, store a large amount of lubricating grease, bearing produces amount of heat because of friction in running, can play the effects such as lubricated, heat radiation, improve the bearing radiating effect, increased the interval time of bearing maintenance supplemental lubrication fat, reduced the operation expense of pump.
(3), the cylindrical of dynamic bearing lid body is provided with trapezoidal thread, and with motor upper cover, form Spielpassung, contactless friction, improved the working life of dynamic bearing lid, the gap that dynamic bearing lid body cylindrical coordinates with upper end cap forms labyrinth seal structure, trapezoidal thread is right-handed thread, makes the lubricating grease of leakage to motion in the other direction in rotary course, has well reduced the leakage of bearing grease.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is assembly structure schematic diagram of the present utility model.
Fig. 3 is the structural representation between the utility model dynamic bearing lid body and motor upper cover fitting surface.
Embodiment
Referring to accompanying drawing, a kind of submerged pump dynamic bearing lid, include the dynamic bearing that is arranged on motor shaft 1 by interference fit and cover body 2, motor upper cover 3 and bearing 4, has respectively depressed part 5 on the inside and outside end face of dynamic bearing lid body 2, the cylindrical of dynamic bearing lid body 2 is provided with trapezoidal thread 6, and has gap between the cylindrical of dynamic bearing lid body 2 and motor upper cover 3.
In the utility model, trapezoidal thread 6 is right-handed thread.
Claims (2)
1. a submerged pump dynamic bearing covers, include the dynamic bearing that is arranged on motor shaft by interference fit and cover body, motor upper cover and bearing, it is characterized in that: have respectively depressed part on the inside and outside end face of described dynamic bearing lid body, the cylindrical of dynamic bearing lid body is provided with trapezoidal thread, and has gap between the cylindrical of dynamic bearing lid body and motor upper cover.
2. submerged pump dynamic bearing according to claim 1 covers, and it is characterized in that: described trapezoidal thread is right-handed thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202490913U CN203285716U (en) | 2013-05-09 | 2013-05-09 | Dynamic bearing cover for submersible sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202490913U CN203285716U (en) | 2013-05-09 | 2013-05-09 | Dynamic bearing cover for submersible sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285716U true CN203285716U (en) | 2013-11-13 |
Family
ID=49542082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202490913U Expired - Fee Related CN203285716U (en) | 2013-05-09 | 2013-05-09 | Dynamic bearing cover for submersible sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151099A (en) * | 2016-08-30 | 2016-11-23 | 常州东申泵业有限公司 | There is the submersible axial flow pump of threaded sealing structure |
| CN106516638A (en) * | 2016-12-13 | 2017-03-22 | 赵恒祥 | Conveying system and sealing device thereof |
-
2013
- 2013-05-09 CN CN2013202490913U patent/CN203285716U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151099A (en) * | 2016-08-30 | 2016-11-23 | 常州东申泵业有限公司 | There is the submersible axial flow pump of threaded sealing structure |
| CN106516638A (en) * | 2016-12-13 | 2017-03-22 | 赵恒祥 | Conveying system and sealing device thereof |
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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: 20131113 Termination date: 20140509 |