CN201292980Y - Oil immersion type submersible pump rotating axle sealing device - Google Patents
Oil immersion type submersible pump rotating axle sealing device Download PDFInfo
- Publication number
- CN201292980Y CN201292980Y CNU2008201686827U CN200820168682U CN201292980Y CN 201292980 Y CN201292980 Y CN 201292980Y CN U2008201686827 U CNU2008201686827 U CN U2008201686827U CN 200820168682 U CN200820168682 U CN 200820168682U CN 201292980 Y CN201292980 Y CN 201292980Y
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- China
- Prior art keywords
- seal
- running shaft
- end cap
- sealing device
- sealing
- 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 - Lifetime
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Abstract
The utility model discloses a sealing structure of an electric diving pump. The prior oil-immersed electric diving pump has poor sealing performance and short service life. The rotating shaft sealing device of the oil-immersed electric diving pump is characterized in that the upper end of a shell of the oil-immersed motor is in sealing connection with an upper end cover and a pump base located at the upper side of the upper end cover; the pump base is provided with a partition wall and a water inlet located at the upper side of the partition; the rotating shaft of the oil-immersed motor extends upwardly to penetrate the upper end cover and the partition wall in sequence; a sealing element is mounted at the joint between at least one side of the upper end cover and the rotating shaft; a sealing element is mounted at the joint between at least one side of the partition wall and the rotating shaft so as to form a closed motor cavity between the shell and the upper end cover and form a sealing cavity between the partition wall and the upper end cover. The utility model has advantages of reasonable structure, high sealing performance, reliability, high bearing ability, long operational service life, and the like.
Description
Technical field
The utility model relates to the sealing configuration of Submerged Motor Pumps, a kind of specifically oil immersion type electric underwater pump sealing device for rotary shaft.
Background technique
Oil immersion type electric underwater pump generally includes the oil immersed type motor and is connected the water pump of oil immersed type motor upper end, during work this oil immersion type electric underwater pump is placed deep water, rotation in the impeller cavity of impeller in pump case of water pump by the running shaft band of oil immersed type motor and water is sucked and discharges from drain opening and the water pipe that is connected on the drain opening from water intake.Because this class Submerged Motor Pumps is arranged in deep water, and poor sealing performance, so water inlet easily in the motor, the working life of whole Submerged Motor Pumps is short.
The model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome short defective of existing oil immersion type electric underwater pump poor sealing performance, working life, and a kind of oil immersion type electric underwater pump sealing device for rotary shaft is provided.For this reason, the utility model is by the following technical solutions:
The oil immersion type electric underwater pump sealing device for rotary shaft, it is characterized in that being sealedly connected with upper end cap and the pump seat that is positioned at this upper end cap upside in the housing upper end of oil immersed type motor, the water intake that has the next door on the described pump seat and be positioned at this next door upside, the running shaft of described oil immersed type motor extends upward and passes described upper end cap and next door successively, in at least one side of described upper end cap and the junction of described running shaft Sealing is installed, in at least one side in described next door and the junction of described running shaft Sealing is installed, thereby between described housing and upper end cap, form the motor cavity of sealing, between described next door and upper end cap, form Seal cage.
The utlity model has plurality of advantages such as rational in infrastructure, sealability reliability height, bearing capacity height, operation long service life.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure: 1-oil immersed type motor, 2-housing, 3-upper end cap, 4-pump seat, the 5-next door, 6-water intake, 7-running shaft, 8-motor cavity, the 9-Seal cage, 10-double mechanical seal, 11-static seal fastening structure, 12-mechanical seal, the 13-boss, 14-radial hole, 15-bearing, the 16-outside framework oil seal, 17/18-seal ring, 19-bolt, the 20-oil filler, 21-oil is stifled, the 22-lower end cap.
Embodiment
Below in conjunction with Figure of description the utility model is described further.
As shown in Figure 1, this oil immersion type electric underwater pump sealing device for rotary shaft is the pump seat 4 that is sealedly connected with upper end cap 3 in housing 2 upper ends of oil immersed type motor 1 and is positioned at these upper end cap 3 upsides, the water intake 6 that has next door 5 on the pump seat 4 and be positioned at these next door 5 upsides, the running shaft 7 of oil immersed type motor 1 extends upward and passes upper end cap 3 and next door 5 successively, in at least one side of upper end cap 3 and the junction of running shaft 7 Sealing is installed, at least one side of next door 5 and the junction of running shaft 7 are equipped with Sealing, thereby between housing 2 and upper end cap, form the motor cavity 8 (bottom of this motor cavity 8 is by housing 2 and lower end cap 22 sealings) of sealing, form Seal cage 9 between next door 5 and the upper end cap 3.This scheme, oil immersed type motor 1 can be provided with two seals at least at an end of water intake 6, and the sealing of four roads can be set at most, thereby guarantees sealing effect, its sealability reliability height, bearing capacity height, operation long service life; This scheme is that the structure with existing oil immersion type electric underwater pump is that the innovation that carry out on the basis improves, and it is rational in infrastructure, and is easy to implement.
Concrete,
Running shaft 7 is positioned at the double mechanical seal 10 that is set with on the part of Seal cage 9 as Sealing, this double mechanical seal 10 comprises the static seal and the dynamic seal between these two static seal at two its two ends, two static seal are installed in the position that combines with running shaft 7 on upper end cap 3 and the next door 5 respectively, the dynamic seal Elastic Contact is (general is to support by spring) on these two static seal and be enclosed within on the running shaft and rotate with running shaft that (this structure also can be replaced the effect that reaches same with following structure: running shaft is positioned on the part of Seal cage and is set with two mechanical seals as Sealing, each mechanical seal comprises a static seal and a dynamic seal, these two static seal are installed in the position that combines with running shaft on upper end cap and the next door respectively, be enclosed within on the running shaft with the corresponding respectively dynamic seal of these two static seal and respectively Elastic Contact on these two static seal); Effect has static seal fastening structure 11 (as pressing plate) on the static seal that is positioned on the described next door of being installed in of described Seal cage with described running shaft binding site, prevents static seal static seal play and cause the inefficacy of static seal point when the overvoltage of pump end.
Running shaft 7 is positioned on the part of motor cavity 8 suit one as the mechanical seal 12 of Sealing, this mechanical seal 12 comprises a static seal and a dynamic seal, static seal is installed in the position that upper end cap combines with running shaft, dynamic seal be enclosed within on the running shaft and Elastic Contact on this static seal; Prevent that thus dynamo oil is to exosmosis.
Has protrusion on the upper end cap 3 in motor cavity 8 and around the boss 13 of running shaft, mechanical seal 12 is positioned at the inboard of this boss 13; Offer the radial hole 14 of corresponding dynamic seal on the boss 13, make fluid in the motor cavity 8 under the effect of the rotary centrifugal force of the dynamic seal of mechanical seal 12, carry out lubricated and cooling mechanical seal; The bearing 15 that is positioned at mechanical seal 12 downsides is installed on the boss is used for supporting rotating shaft 7, make compact structure simultaneously.
The outside framework oil seal 16 as Sealing in abutting connection with water intake 6 is installed between next door 5 and the running shaft 7, play hypotensive effect first, alleviate the load of dynamic seal in the Seal cage 9, secondly also play and prevent that granule foreign enters seal arrangement in the sealing, and form adverse effect.
Above-mentioned oil immersion type electric underwater pump sealing device for rotary shaft, between housing 2 and the upper end cap 3, be separately installed with seal ring 17,18 between upper end cap 3 and the pump seat 4, the combination between described housing 2, upper end cap 3, the pump seat 4 then connects by bolt 19.Offer an oil filler 20 and be used for refueling in Seal cage 9 on the next door 5 of pump seat 4, shutoff has oil stifled 21 on this oil filler 20.
Above-mentioned oil immersion type electric underwater pump sealing device for rotary shaft, it is the part of oil immersion type electric underwater pump, when constituting complete oil immersion type electric underwater pump, only need on running shaft, to install impeller, the pump case that has water outlet is installed on pump seat, is made in the impeller cavity between water intake and water outlet of impeller in pump case getting final product.
Claims (9)
1, the oil immersion type electric underwater pump sealing device for rotary shaft, it is characterized in that being sealedly connected with upper end cap (3) and be positioned at the pump seat (4) of this upper end cap (3) upside in the housing (2) of oil immersed type motor (1) upper end, the water intake (6) that has next door (5) on the described pump seat (4) and be positioned at this next door (5) upside, the running shaft (7) of described oil immersed type motor (1) extends upward and passes described upper end cap (3) and next door (5) successively, in at least one side of described upper end cap (3) and the junction of described running shaft (7) Sealing is installed, in at least one side of described next door (5) and the junction of described running shaft (7) Sealing is installed, thereby between described housing (2) and upper end cap (3), form the motor cavity (8) of sealing, between described next door (5) and upper end cap (3), form Seal cage (9).
2, oil immersion type electric underwater pump sealing device for rotary shaft according to claim 1, it is characterized in that described running shaft (7) is positioned at the double mechanical seal (10) that is set with on the part of described Seal cage (9) as Sealing, this double mechanical seal (10) comprises the static seal and the dynamic seal between these two static seal at two its two ends, described two static seal are installed in described upper end cap (3) and next door (5) last position that combines with described running shaft (7) respectively, and described dynamic seal is enclosed within the last also Elastic Contact of described running shaft (7) on these two static seal.
3, oil immersion type electric underwater pump sealing device for rotary shaft according to claim 1, it is characterized in that described running shaft is positioned at two mechanical seals that are set with on the part of described Seal cage as Sealing, each mechanical seal comprises a static seal and a dynamic seal, these two static seal are installed in the position that combines with described running shaft on described upper end cap and the next door respectively, be enclosed within on the described running shaft with the corresponding respectively dynamic seal of these two static seal and respectively Elastic Contact on these two static seal.
4, according to claim 2 or 3 described oil immersion type electric underwater pump sealing device for rotary shaft, its feature goes up in the described next door (5) that is installed in that is positioned at described Seal cage (9) that effect has static seal fastening structure (11) on the static seal with described running shaft (7) binding site.
5, oil immersion type electric underwater pump sealing device for rotary shaft according to claim 1, it is characterized in that described running shaft (7) is positioned on the part of described motor cavity (8) suit one as the mechanical seal (12) of Sealing, this mechanical seal (12) comprises a static seal and a dynamic seal, described static seal is installed in the position that described upper end cap (3) combines with described running shaft (7), and described dynamic seal is enclosed within the last also Elastic Contact of described running shaft (7) on this static seal.
6, oil immersion type electric underwater pump sealing device for rotary shaft according to claim 5, it is characterized in that having on the described upper end cap (3) protrusion in described motor cavity (8) and around the boss (13) of described running shaft (7), described mechanical seal (12) is positioned at the inboard of this boss (13).
7, oil immersion type electric underwater pump sealing device for rotary shaft according to claim 6 is characterized in that offering on the described boss (13) radial hole (14) of corresponding described dynamic seal.
8, oil immersion type electric underwater pump sealing device for rotary shaft according to claim 6 is characterized in that being equipped with on the described boss (13) bearing (15) that is positioned at described mechanical seal (12) downside.
9, oil immersion type electric underwater pump sealing device for rotary shaft according to claim 1 is characterized in that being equipped with between described next door (5) and the running shaft (7) outside framework oil seal as Sealing (16) in abutting connection with described water intake (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201686827U CN201292980Y (en) | 2008-11-25 | 2008-11-25 | Oil immersion type submersible pump rotating axle sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201686827U CN201292980Y (en) | 2008-11-25 | 2008-11-25 | Oil immersion type submersible pump rotating axle sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292980Y true CN201292980Y (en) | 2009-08-19 |
Family
ID=41006457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201686827U Expired - Lifetime CN201292980Y (en) | 2008-11-25 | 2008-11-25 | Oil immersion type submersible pump rotating axle sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292980Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370637A (en) * | 2015-11-29 | 2016-03-02 | 无锡市海航电液伺服系统股份有限公司 | Hydraulic oil source |
| CN108923578A (en) * | 2018-05-31 | 2018-11-30 | 深圳拓为汽车技术有限公司 | Electric operator and continuous variable lift dynamical system |
-
2008
- 2008-11-25 CN CNU2008201686827U patent/CN201292980Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370637A (en) * | 2015-11-29 | 2016-03-02 | 无锡市海航电液伺服系统股份有限公司 | Hydraulic oil source |
| CN108923578A (en) * | 2018-05-31 | 2018-11-30 | 深圳拓为汽车技术有限公司 | Electric operator and continuous variable lift dynamical system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG SHIMGE PUMP INDUSTRY CO., LTD. Free format text: FORMER NAME: ZHEJIANG SHIMGE PUMP INDUSTRY CO., LTD |
|
| CP01 | Change in the name or title of a patent holder |
Address after: China Zhejiang province Wenling Daxi town Ocean City Industrial Zone, 317525 Patentee after: Zhejiang Shimge Pump Industry Co., Ltd. Address before: China Zhejiang province Wenling Daxi town Ocean City Industrial Zone, 317525 Patentee before: Zhejiang Xinjie Pump Industry Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHIMGE PUMP INDUSTRY GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG SHIMGE PUMP INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 317525 Zhejiang city in Wenling Province town of Ocean City Industrial Zone Patentee after: Shimge Pump Industry Group Co., Ltd. Address before: 317525 Zhejiang city in Wenling Province town of Ocean City Industrial Zone Patentee before: Zhejiang Shimge Pump Industry Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090819 |