CN201318311Y - Fastening, connecting and sealing device of screw thread on shaft end of immersible electric pump - Google Patents
Fastening, connecting and sealing device of screw thread on shaft end of immersible electric pump Download PDFInfo
- Publication number
- CN201318311Y CN201318311Y CNU2008202295318U CN200820229531U CN201318311Y CN 201318311 Y CN201318311 Y CN 201318311Y CN U2008202295318 U CNU2008202295318 U CN U2008202295318U CN 200820229531 U CN200820229531 U CN 200820229531U CN 201318311 Y CN201318311 Y CN 201318311Y
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- CN
- China
- Prior art keywords
- big
- flat pad
- big flat
- bolt
- shaft end
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a fastening, connecting and sealing device of screw thread on shaft end of immersible electric pump, which comprises a screwed joint, wherein the screwed joint comprises a washer, a bolt or a stud, wherein the screwed joint further comprises a big flat pad which is arranged between the faying faces of the washer and an end cap, and a gap is arranged between the big flat pad and the bolt or between the big flat pad and the stud, a seal ring is filled in the gap, and a small flat pad is arranged between the big flat pad and a pad, and the outer diameter of the small flat pad is bigger than the inner diameter of the big flat pad, and the small flat pad is pressed on the big flat pad. The fastening, connecting and sealing device of screw thread on shaft end of immersible electric pump has the advantages of guaranteeing the requirement of shaft end screw connection to shaft end surfaces through adding a set of big and small flat pads in an original screwed joint and through the seal ring arranged in the big flat pad, and therefore, smooth processing does not need to be done on the faying face of the shaft end, and excellent connecting and sealing effect can be guaranteed.
Description
Technical field
The utility model relates to a kind of Submerged Motor Pumps, being threaded and seal arrangement of particularly a kind of Submerged Motor Pumps casing.
Background technique
Submerged Motor Pumps is the be connected as a single entity electric pump unit of the work of diving beneath the water of a kind of motor and pump, and it has advantage easy to install, mainly is applicable to occasions such as shallow well, river, water channel, is widely used in fields such as field irrigation, draining.All bringing into play enormous function in fields such as industrial and agricultural production, urban construction, domestic lifes.Because the particularity of Submerged Motor Pumps, for motor part wherein, need carry out corresponding encapsulation process according to his characteristic, but no matter be the motor of immersion type, oil immersed type, dry type, shielding etc., an one general character needs sand control exactly, and anti-mud is in order to avoid sand, mud equigranular object enters motor internal, damages motor.All adopt bolt to be connected between the housing of the motor section of existing Submerged Motor Pumps and the end cap, for the junction plane on the end cap strict requirement is arranged when employing is threaded, require surfacing, smooth, develop with fixed block and end cover surface on the assurance attachment bolt, play good fixing and seal action.Because the surface of end cap all is a black skin, therefore need handle its thread joint face, come out on a black skin ream plane, develop to guarantee attachment bolt hexagon head plane and part plane.But for Submerged Motor Pumps, owing to need to adopt the end cap junction plane that is threaded to be in the position that cutter can't stretch into processing, therefore existing method adopts the method for filling sealer under the pad more, because the sealer elasticity of filling is relatively poor, stressed back easy deformation, and cannot reuse, so sealing effect is undesirable, cost is also higher.Also have and directly to adopt rubber sheet gasket, relatively poor owing to the rubber sheet gasket mechanical strength, can not bear big fastening force, deformed damaged behind the pressurized can not play desirable seal action, also exerts an influence to connecting fastening force simultaneously, reduced tightness, the connection effect at other position is affected.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, and the screw threads for fastening that provides a kind of good solution submersible electric pump motor end cap to be connected and fixed connects and seal arrangement.
Submerged Motor Pumps axle head screw threads for fastening connects and seal arrangement, comprise and being threaded, be threaded and include packing ring, bolt or double-screw bolt, its structure outline is: described being threaded is provided with the big flat washer sheet between the junction plane that also is included in packing ring and end cap, be provided with the gap at big flat washer between flat and bolt or big flat washer sheet and the double-screw bolt, in the gap, be filled with seal ring, be provided with little flat gasket between big flat washer and pad, the external diameter of described little flat gasket is greater than the internal diameter of big flat washer sheet and be pressed on the big flat washer sheet.
The axle head screw threads for fastening of this structure connects and seal arrangement, by in original being threaded, having set up the large and small flat gasket of a cover, and insert seal ring in the gap between big flat washer sheet and bolt or double-screw bolt, and little flat gasket is pressed on the big flat washer sheet, thereby can guarantee that axle head is threaded to the requirement of end axial surface.Therefore need not to carry out the flat processing of ream, can guarantee good connection and sealing effect again at casing axle head junction plane place.
Seal ring between described big flat washer sheet and bolt or the double-screw bolt is O-ring seals or rubber like circle.
Described packing ring or be elastic washer or for plain washer.
In sum, advantage of the present utility model is:
The utility model is by adding a cover by large and small flat gasket in original thread connects, the seal ring between the big flat washer sheet, and little flat gasket is pressed on the big flat washer sheet, thereby can guarantee that axle head is threaded to the requirement of end axial surface.Therefore need not to carry out the flat processing of ream, can guarantee good connection and sealing effect again at the axial junction plane of casing place.
Attached circle explanation
Fig. 1 is the structural representation of the utility model embodiment's connecting bolt device
Label declaration 1 bolt 2 nuts 3 elastic washers 40 shape seal rings 5 big flat washer sheets 6 small pieces pads 7 end caps 8 motor cases
Embodiment
Below in conjunction with embodiment the utility model is described in more detail.
Embodiment 1
A kind of axle head screw threads for fastening of Submerged Motor Pumps as shown in Figure 1 connects and seal arrangement, comprises bolt 1, nut 2, elastic washer 3, O-ring seals 4, big flat washer sheet 5, little flat gasket 6.Described bolt connects end cap 7 and motor case 8, and the big flat washer sheet contacts with end cap, insert O-ring seals in the gap between big flat washer sheet and bolt, presses little flat gasket above big flat washer sheet and seal ring, then again with spring washer and nut check.
It is same as the prior art that present embodiment is not stated part.
Claims (3)
1. the axle head of Submerged Motor Pumps is threaded and seal arrangement, comprise and being threaded, be threaded and include packing ring, bolt or double-screw bolt, it is characterized in that: described being threaded is provided with the big flat washer sheet between the junction plane that also is included in packing ring and end cap, be provided with the gap at big flat washer between flat and bolt or big flat washer sheet and the double-screw bolt, in the gap, be filled with seal ring, be provided with little flat gasket between big flat washer and pad, the external diameter of described little flat gasket is greater than the internal diameter of big flat washer sheet and be pressed on the big flat washer sheet.
2. the axle head screw connection of Submerged Motor Pumps according to claim 1, it is characterized in that: the seal ring between described big flat washer sheet and bolt or the double-screw bolt is an O-ring seals.
3. the axle head screw connection of Submerged Motor Pumps according to claim 1 is characterized in that: described packing ring or for elastic washer or be plain washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202295318U CN201318311Y (en) | 2008-12-24 | 2008-12-24 | Fastening, connecting and sealing device of screw thread on shaft end of immersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202295318U CN201318311Y (en) | 2008-12-24 | 2008-12-24 | Fastening, connecting and sealing device of screw thread on shaft end of immersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318311Y true CN201318311Y (en) | 2009-09-30 |
Family
ID=41197076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202295318U Expired - Fee Related CN201318311Y (en) | 2008-12-24 | 2008-12-24 | Fastening, connecting and sealing device of screw thread on shaft end of immersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318311Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398605A (en) * | 2010-09-17 | 2012-04-04 | 中国北车集团大同电力机车有限责任公司 | Sealing device, locomotive and hermetic connecting method |
-
2008
- 2008-12-24 CN CNU2008202295318U patent/CN201318311Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398605A (en) * | 2010-09-17 | 2012-04-04 | 中国北车集团大同电力机车有限责任公司 | Sealing device, locomotive and hermetic connecting method |
| CN102398605B (en) * | 2010-09-17 | 2015-04-22 | 中国北车集团大同电力机车有限责任公司 | Sealing device, locomotive and hermetic connecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FUAN YUANDONG AMERICAN CHINA ELECTRIC CO.,LTD. Free format text: FORMER OWNER: FUJIAN YUANDONG ELECTRIC MOTOR GROUP CO., LTD. Effective date: 20100909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350005 5/F, BUILDING 2, SCIENCE RESEARCH BUILDING, MACHINERY RESEARCH INSTITUTE, NO.115, LIUYI MIDDLE ROAD, SHUIBU STREET, GULOU DISTRICT, FUZHOU CITY, FUJIAN PROVINCE TO: 355000 QINXIYANG INDUSTRIAL PARK DISTRICT, FU'AN CITY, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100909 Address after: 355000 Fujian city of Fu'an Province Qin small stream foreign industrial park Patentee after: Fuan Yuandong American China Electric Co., Ltd. Address before: Water Street 61 Road, Gulou District of Fuzhou city in Fujian province 350005 No. 115 Machinery Research Institute of medical research building (Building 2) fifth Patentee before: Fujian Yuandong Electric Motor Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |