CN205446158U - Deep -well pump or screw pump end cap seal structure - Google Patents
Deep -well pump or screw pump end cap seal structure Download PDFInfo
- Publication number
- CN205446158U CN205446158U CN201620135426.2U CN201620135426U CN205446158U CN 205446158 U CN205446158 U CN 205446158U CN 201620135426 U CN201620135426 U CN 201620135426U CN 205446158 U CN205446158 U CN 205446158U
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- stainless steel
- end cap
- steel cylinder
- collar
- rustless steel
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Abstract
The utility model discloses a deep -well pump or screw pump end cap seal structure, including stainless steel barrel, stainless steel barrel tip interference fit has motor cover, is equipped with the end cover above the motor cover, end cover and stainless steel barrel inner wall interference fit, end cover upper end outside edge is equipped with the mounting groove, and interference fit has the stainless steel lantern ring in the mounting groove, the stainless steel lantern ring and the mode welded fastening that stainless steel barrel welded through argon arc, it has the welding fluid to pack between the stainless steel cover ring sum stainless steel barrel. This deep -well pump or screw pump end cap seal structure can effectively avoid using for a long time the emergence of rear end cap drainage.
Description
Technical field
This utility model relates to water pump end cover sealing structure, particularly to a kind of deep well pump or screw pump end cover sealing structure.
Background technology
Deep well pump, screw pump are typically made up of with motor two parts the pump housing at present, and wherein motor section is in order to prevent water from causing motor section short circuit in entering motor section, higher for seal request.It is not tight the most easily to there is end cap seal in existing sealing structure, causes the phenomenon of motor entering water to occur.
At present, the Chinese patent of application number 201520046021.7 discloses a kind of deep well pump, including the pump housing, motor section, motor section is sequentially provided with oil sac away from inside pump housing one end, locating cover, jump ring, motor section is provided with fixing lid away from pump housing outer end, fixing lid side is provided with the seal groove of annular, sealing ring it is provided with in seal groove, fixing covering is provided with the fixture fixing with motor section, fixing lid and oil sac is made to form an isolation cavity, in water put into by deep well pump, fixing lid is internally pressed by extraneous hydraulic pressure, fixing lid deformation is caused to cave inward, so that fixing lid compresses near motor section one side, make seal groove shrink thus improve the sealing to motor section.Although this deep well pump has preferable sealing, but structure is complex, higher to requirement on machining accuracy, causes production cost higher, and sealing member bubble still exists, after easily causing in fluid that sealing member is aging and working long hours, the problem leaked simultaneously.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of deep well pump or screw pump end cover sealing structure, can be prevented effectively from the long-time generation using rear end cap drainage.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of deep well pump or screw pump end cover sealing structure, including stainless steel cylinder, stainless steel cylinder end interference fit has motor cover, motor cover is arranged over end cap, described end cap and stainless steel cylinder inwall interference fit, end cap upper end outer ledge is provided with mounting groove, in mounting groove, interference fit has the rustless steel collar, the rustless steel collar is welded and fixed by the way of argon arc welding with stainless steel cylinder, is filled with welding fluid between the rustless steel collar and stainless steel cylinder.
Pass through technique scheme, fixed by argon arc welding between the rustless steel collar and stainless steel cylinder, it is filled with welding fluid between the rustless steel collar and stainless steel cylinder, can be effectively to sealing between end cap and stainless steel cylinder, connecting, seal relative to modes such as using sealing member, so it is connected the gap that can thoroughly prevent water from never becoming rusty between steel collar and stainless steel cylinder between the rustless steel collar and stainless steel cylinder and enters stainless steel cylinder, prevent motor from intaking at this, cause motor damage.Motor can be played fixation by arranging of motor cover, can also build a positioning action in opposite end simultaneously, prevent end cap to be absorbed in the stainless steel cylinder degree of depth when installing the deepest.End cap and stainless steel cylinder inwall interference fit, stainless steel sleeve ring set is located at end cap upper end, exactly the rustless steel collar can be positioned and be fixed during welding, and when making stainless steel sleeve boxing connect, position is more accurate.
Preferably, described rustless steel collar upper surface is provided with protuberance, and protuberance is higher than end cover surface.
Pass through technique scheme, arranging of protuberance can facilitate the rustless steel collar and end-cap assembly to load stainless steel cylinder, as long as end cap to be placed on during loading stainless steel cylinder upper end, end cap and stainless steel sleeve ring assemblies can be loaded stainless steel cylinder by the protuberance then tapping the rustless steel collar, the setting of protuberance facilitates the installation of end cap, if being not provided with protuberance, inevitably tap on end cap during installation, owing to being interference fit between end cap and the rustless steel collar, disengaging it is likely to result between end cap and the rustless steel collar when tapping end cap, affect the normal mounting welding of end cap and the rustless steel collar.Protuberance lathe car can be fallen after welding completes, it is to avoid protuberance affects the connection between stainless steel cylinder and the pump housing.
Preferably, described stainless steel cylinder end face is provided with and is easy to the chamfering that end cap loads.
By technique scheme, end cap can be facilitated to load stainless steel cylinder, the most when soldered, the setting of chamfering can also effectively prevent welding fluid from flowing to outside stainless steel cylinder, causes welding fluid to waste.
Preferably, described end cap is aluminum.
By technique scheme, end cap is aluminum, lighter in weight, and intensity is higher, has preferable deformability and toughness, produces the expanding force of increasing after end cap is pressed into stainless steel cylinder between energy and stainless steel cylinder, prevents end cap from loosening.
Preferably, there is gap between described rustless steel collar outer wall and stainless steel cylinder inwall.
By technique scheme, when the soldering stainless steel collar and stainless steel cylinder, the welding fluid of thawing can enter in the gap between the rustless steel collar and stainless steel cylinder, increases the bonding area between stainless steel cylinder and the rustless steel collar, increases the firmness of welding.
Preferably, described rustless steel ferrule end face is less than stainless steel cylinder end face.
By technique scheme, during welding, rustless steel ferrule end face can accommodate more welding fluid, makes the connection between the rustless steel collar and stainless steel cylinder more firm, improves bonding strength and sealing property.
In sum, what this utility model in contrast to prior art has the beneficial effect that by changing the sealing structure between end cap and stainless steel cylinder, it is welded and fixed between the rustless steel collar and the stainless steel cylinder that will be set on end cap by the mode of sub-arc-welding, the gap between stainless steel cylinder and the rustless steel collar is made to be filled up by welding fluid, prevent water from never becoming rusty between steel collar and stainless steel cylinder and enter stainless steel cylinder, cause the motor damage in stainless steel cylinder, rustless steel collar upper surface is provided with protuberance simultaneously, facilitate the installation of end cap, avoid causing end cap and the separation of the rustless steel collar when tapping, stainless steel sleeve boxing is caused to position when connecing inaccurate.It is provided with gap between the rustless steel collar and stainless steel cylinder simultaneously, and make rustless steel ferrule end face less than stainless steel cylinder end face, to increase contact area and the welding fluid amount of weld, improve the bonding strength between the rustless steel collar and stainless steel cylinder, improve the bonding strength between the rustless steel collar and stainless steel cylinder and sealing effectiveness further.
Accompanying drawing explanation
Fig. 1 be embodiment stainless steel cylinder end explosive view；
Fig. 2 is the sectional view of embodiment stainless steel cylinder end;
Fig. 3 is the enlarged drawing in Fig. 2 at A.
Reference: 1, stainless steel cylinder；2, motor cover；3, end cap；31, mounting groove；4, the rustless steel collar；41, protuberance；42, rustless steel ferrule end face；5, chamfering.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
As depicted in figs. 1 and 2, a kind of deep well pump or screw pump end cover sealing structure, including stainless steel cylinder 1, stainless steel cylinder 1 end interference fit has motor cover 2, motor cover 2 to be arranged over end cap 3, end cap 3 and stainless steel cylinder 1 inwall interference fit, end cap 3 upper end outer ledge is provided with mounting groove 31, in mounting groove 31, interference fit has the rustless steel collar 4, the rustless steel collar 4 to be welded and fixed by the way of argon arc welding with stainless steel cylinder 1, makes to be filled with welding fluid between the rustless steel collar 4 and stainless steel cylinder 1.Fixed by argon arc welding between the rustless steel collar 4 and stainless steel cylinder 1, make to be filled with welding fluid between the rustless steel collar 4 and stainless steel cylinder 1, can be effectively to sealing between end cap 3 and stainless steel cylinder 1, connecting, relative to using the modes such as sealing member, so it is connected the gap that can thoroughly prevent water from never becoming rusty between steel collar 4 and stainless steel cylinder 1 between the rustless steel collar 4 with stainless steel cylinder 1 and enters stainless steel cylinder 1, prevent motor from intaking at this, cause motor damage.Motor can be played fixation by arranging of motor cover 2, end cap 3 can also play a positioning action simultaneously, prevent end cap 3 to be absorbed in stainless steel cylinder 1 degree of depth when installing the deepest.End cap 3 and stainless steel cylinder 1 inwall interference fit, the rustless steel collar 4 is set in end cap 3 upper end, exactly the rustless steel collar 4 can be positioned and be fixed during welding, and when making the rustless steel collar 4 weld, position is more accurate.
As in figure 2 it is shown, the described rustless steel collar 4 upper surface is provided with protuberance 41, protuberance 41 is higher than end cap 3 surface.Arranging of protuberance 41 can facilitate the rustless steel collar 4 and end cap 3 assembly to load stainless steel cylinder 1, as long as end cap 3 to be placed on during loading stainless steel cylinder 1 upper end, end cap 3 and the rustless steel collar 4 assembly can be loaded stainless steel cylinder 1 by the protuberance 41 then tapping the rustless steel collar 4, the setting of protuberance 41 facilitates the installation of end cap 3, if being not provided with protuberance 41, inevitably tap during installation on end cap 3, owing to being interference fit between end cap 3 and the rustless steel collar 4, disengaging it is likely to result between end cap 3 and the rustless steel collar 4 when tapping end cap 3, affect the normal mounting welding of end cap 3 and the rustless steel collar 4.
As it is shown on figure 3, described stainless steel cylinder 1 end face is provided with is easy to the chamfering 5 that end cap 3 loads.Arranging of chamfering 5 can facilitate end cap 3 to load stainless steel cylinder 1, and the most when soldered, the setting of chamfering 5 can also effectively prevent welding fluid from flowing to the external side of stainless steel cylinder 1, causes welding fluid to waste.
Described end cap 3 is preferably aluminum.End cap 3 is aluminum, lighter in weight, and intensity is higher, has preferable deformability and toughness, after end cap 3 is pressed into stainless steel cylinder 1 can and stainless steel cylinder 1 between expanding force, prevent end cap 3 from loosening.
Gap is there is between the described rustless steel collar 4 outer wall and stainless steel cylinder 1 inwall.The existence in gap between the rustless steel collar 4 and stainless steel cylinder 1, when the soldering stainless steel collar 4 and stainless steel cylinder 1, the welding fluid melted can enter in the gap between the rustless steel collar 4 and stainless steel cylinder 1, increases the bonding area between stainless steel cylinder 1 and the rustless steel collar 4, increases the firmness of welding.
As it is shown on figure 3, the described rustless steel collar 4 end face 42 is less than stainless steel cylinder 1 end face.Stainless steel cylinder 1 and the rustless steel collar 4 are so arranged, and can accommodate more welding fluid during welding between the rustless steel collar 4 and stainless steel cylinder 1, make the connection between the rustless steel collar 4 and stainless steel cylinder 1 more firm, improve bonding strength and sealing property.
The above is only exemplary embodiment of the present utility model, and not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.
Claims (6)
1. a deep well pump or screw pump end cover sealing structure, including stainless steel cylinder (1), stainless steel cylinder (1) end interference fit has motor cover (2), motor cover (2) is arranged over end cap (3), it is characterized in that: described end cap (3) and stainless steel cylinder (1) inwall interference fit, end cap (3) upper end outer ledge is provided with mounting groove (31), mounting groove (31) interior interference fit has the rustless steel collar (4), the rustless steel collar (4) is welded and fixed by the way of argon arc welding with stainless steel cylinder (1), it is filled with welding fluid between the rustless steel collar (4) and stainless steel cylinder (1).
Deep well pump the most according to claim 1 or screw pump end cover sealing structure, is characterized in that: the described rustless steel collar (4) upper surface is provided with protuberance (41), and protuberance (41) is higher than end cap (3) surface.
Deep well pump the most according to claim 2 or screw pump end cover sealing structure, is characterized in that: described stainless steel cylinder (1) end face is provided with is easy to the chamfering (5) that end cap loads.
Deep well pump the most according to claim 3 or screw pump end cover sealing structure, is characterized in that: described end cap (3) is aluminum.
Deep well pump the most according to claim 4 or screw pump end cover sealing structure, is characterized in that: there is gap between the described rustless steel collar (4) outer wall and stainless steel cylinder (1) inwall.
Deep well pump the most according to claim 5 or screw pump end cover sealing structure, is characterized in that: the described rustless steel collar (4) end face is less than the end face of stainless steel cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620135426.2U CN205446158U (en) | 2016-02-23 | 2016-02-23 | Deep -well pump or screw pump end cap seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620135426.2U CN205446158U (en) | 2016-02-23 | 2016-02-23 | Deep -well pump or screw pump end cap seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446158U true CN205446158U (en) | 2016-08-10 |
Family
ID=56582089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620135426.2U Expired - Fee Related CN205446158U (en) | 2016-02-23 | 2016-02-23 | Deep -well pump or screw pump end cap seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258708A (en) * | 2021-06-02 | 2021-08-13 | 温岭正峰数字机电科技有限公司 | Deep well pump and motor thereof |
-
2016
- 2016-02-23 CN CN201620135426.2U patent/CN205446158U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258708A (en) * | 2021-06-02 | 2021-08-13 | 温岭正峰数字机电科技有限公司 | Deep well pump and motor thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20180223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |