CN203285722U - Motor shaft end sealing for submersible pump - Google Patents
Motor shaft end sealing for submersible pump Download PDFInfo
- Publication number
- CN203285722U CN203285722U CN2013203073999U CN201320307399U CN203285722U CN 203285722 U CN203285722 U CN 203285722U CN 2013203073999 U CN2013203073999 U CN 2013203073999U CN 201320307399 U CN201320307399 U CN 201320307399U CN 203285722 U CN203285722 U CN 203285722U
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- CN
- China
- Prior art keywords
- submersible pump
- center hole
- motor shaft
- oil seal
- axle
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- 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 provides a motor shaft end sealing for submersible pump. The existing submersible pump is influenced for normal use because of bad sealing, therefore has a short service life. The motor shaft end sealing for submersible pump provided by the utility model comprises an end cap provided with a center hole, a frame oil seal, a pressing push cover and a shaft penetrating the center hole, wherein the center hole is provided the frame oil seal; the frame oil seal is penetrated by the shaft; the pressing push cover is connected inside the end cap through threaded connection to press the frame oil seal tight; and an elastic sealing member is installed between the center hole and the shaft. The motor shaft end sealing can be used for sealing the submersible pump.
Description
Technical field:
The utility model relates to a kind of submersible pump accessory, is specifically related to a kind of motor shaft for submersible pump end sealing.
Background technique:
Submersible pump is the visual plant of deep-well water lift.The whole unit work that pulls the plug during use.Underground water is extracted earth's surface, be to speedily carry out rescue work in domestic water, mine, cooling, the field irrigation of industry, seawater promote, steamer is transferred and carried, also can be used for the fountain view, the hot water submersible pump is used for hot spring bathing, also, applicable to extract underground water from deep-well, also can be used for the water lift engineerings such as river, reservoir, water channel.Be mainly used in field irrigation and alpine region people and animals' water, also can be cooling for central air-conditioner, heat pump unit, cold pump assembly, city, factory, railway, mine, building site draining.General flow can reach (10 cubic metres ~ 650 cubic metres) per hour, lift can reach 1500 meters.Before turn on pump, must be full of liquid in suction pipe and pump.After turn on pump, impeller High Rotation Speed, liquid wherein, along with blade rotates together, under the effect of centrifugal force, fly away from impeller and outwards penetrate, and the liquid of ejaculation speed in the pump case explosion chamber is slack-off gradually, and pressure increases gradually, and then from pump discharge, discharge tube flows out.At this moment, form the vacuum low-pressure district that not only there is no air but also there is no liquid around being thrown toward due to liquid in the blade center, liquid in liquid pool is under the atmospheric effect of pond face, in the suction pipe inflow pump, liquid is exactly so continuously be pumped up from liquid pool and continuously from discharge tube, flow out.
Because submersible pump is worked for a long time in water, the motor of submersible pump requires with water isolated, therefore the motor shaft end seal of submersible pump has proposed higher requirement, existing submersible pump often causes because sealing is bad using into the water impact is normal, reduced its working life, engendered afterwards packing seal, labyrinth seal, mechanical type oil sealing etc., and upgraded from different amount such as material, form, structures, but also do not break away from the wearing and tearing to axle; Simultaneously the material of axle, the surface Machining precision of axle, the hardness of axle and the linear velocity of axle etc. all there are is requirement, cause the sealing problem of submersible pump not solved well.
Summary of the invention:
The purpose of this utility model is that the problem for above-mentioned existence provides a kind of motor shaft for submersible pump end sealing, good sealing effect, and can avoid wearing and tearing to axle.
Above-mentioned purpose realizes by following technological scheme:
The sealing of motor shaft for submersible pump end, comprise end cap, outside framework oil seal, the compression pushing cover that is provided with center hole and the axle that passes center hole, described center hole the inside is equipped with outside framework oil seal, described axle passes described outside framework oil seal, described compression pushing cover is threaded connection in described end cap the inside described outside framework oil seal is compressed, and the elastic packing assembly is installed between described center hole and described axle.
Described motor shaft for submersible pump end sealing, described elastic packing assembly comprises the spring positioning seat that is arranged on the center hole inboard, one group of spring is installed in described spring positioning seat the inside, and described spring is arranged on the seal ring in the described axle outside by elastic compression.
Described motor shaft for submersible pump end seals, and has the gap of 3-10mm between described spring pedestal and described seal ring.
Beneficial effect:
1. the utility model adopts outside framework oil seal in conjunction with the elastic packing assembly, after the outside framework oil seal wearing and tearing, and the wearing and tearing that the elastic packing assembly can the auto-compensation outside framework oil seal, and the elastic packing assembly is less to the wearing and tearing of axle, makes the submersible pump reliable operation.
2. in elastic packing assembly of the present utility model, be provided with the gap of 3-10mm between spring pedestal and seal ring, avoid directly contact between spring pedestal and seal ring, cause spring not have corresponding effect, avoid simultaneously the distortion of excesssive gap spring to cause elastic force inadequate.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
In figure: 1, end cap, 2, outside framework oil seal, 3, compress pushing cover, 4, axle, 5, the spring positioning seat, 6, spring, 7, seal ring.
Embodiment:
Embodiment 1:
As shown in Figure 1: motor shaft for submersible pump end sealing of the present utility model, comprise end cap 1, outside framework oil seal 2, the compression pushing cover 3 that is provided with center hole and the axle 4 that passes center hole, described center hole the inside is equipped with outside framework oil seal, described axle passes described outside framework oil seal, described compression pushing cover is threaded connection in described end cap the inside described outside framework oil seal is compressed, and the elastic packing assembly is installed between described center hole and described axle.
Embodiment 2:
The described motor shaft for submersible pump end sealing of embodiment 1, described elastic packing assembly comprises the spring positioning seat 5 that is arranged on the center hole inboard, one group of spring 6 is installed in described spring positioning seat the inside, and described spring is arranged on the seal ring 7 in the described axle outside by elastic compression.
Embodiment 3:
The described motor shaft for submersible pump end of embodiment 2 seals, and has the gap of 3-10mm between described spring pedestal and described seal ring.
The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technological scheme that is comprised of above technical characteristics combination in any.Unaccomplished matter of the present utility model, belong to those skilled in the art's common practise.
Claims (3)
1. motor shaft for submersible pump end sealing, comprise end cap, outside framework oil seal, the compression pushing cover that is provided with center hole and the axle that passes center hole, it is characterized in that: described center hole the inside is equipped with outside framework oil seal, described axle passes described outside framework oil seal, described compression pushing cover is threaded connection in described end cap the inside described outside framework oil seal is compressed, and the elastic packing assembly is installed between described center hole and described axle.
2. motor shaft for submersible pump end sealing according to claim 1, it is characterized in that: described elastic packing assembly comprises the spring positioning seat that is arranged on the center hole inboard, one group of spring is installed in described spring positioning seat the inside, and described spring is arranged on the seal ring in the described axle outside by elastic compression.
3. motor shaft for submersible pump end sealing according to claim 2, is characterized in that: the gap that has 3-10mm between described spring pedestal and described seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203073999U CN203285722U (en) | 2013-05-31 | 2013-05-31 | Motor shaft end sealing for submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203073999U CN203285722U (en) | 2013-05-31 | 2013-05-31 | Motor shaft end sealing for submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285722U true CN203285722U (en) | 2013-11-13 |
Family
ID=49542088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203073999U Expired - Fee Related CN203285722U (en) | 2013-05-31 | 2013-05-31 | Motor shaft end sealing for submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032098A (en) * | 2020-08-07 | 2020-12-04 | 安徽埃斯克制泵有限公司 | Axial sealing structure of pump shaft of self-priming pump |
-
2013
- 2013-05-31 CN CN2013203073999U patent/CN203285722U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032098A (en) * | 2020-08-07 | 2020-12-04 | 安徽埃斯克制泵有限公司 | Axial sealing structure of pump shaft of self-priming pump |
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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: 20140531 |