CN202170889U - Containing-type anti-loosing and sealing device for inner and outer impeller nuts - Google Patents
Containing-type anti-loosing and sealing device for inner and outer impeller nuts Download PDFInfo
- Publication number
- CN202170889U CN202170889U CN2011202830278U CN201120283027U CN202170889U CN 202170889 U CN202170889 U CN 202170889U CN 2011202830278 U CN2011202830278 U CN 2011202830278U CN 201120283027 U CN201120283027 U CN 201120283027U CN 202170889 U CN202170889 U CN 202170889U
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- CN
- China
- Prior art keywords
- impeller
- nut
- locking
- impeller nut
- loosing
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Abstract
The utility model belongs to the technical field of power pumps and relates to a containing-type anti-loosing and sealing device for inner and outer impeller nuts. In the utility model, a hexagonal nut (3) is arranged in a lower end part (12) of an impeller nut, a seal ring (4) is placed in a concave stage of the end surface of an impeller (2), and the seal ring is in contact with the outer wall of the lower end part (12) of the impeller nut. The containing-type anti-loosing and sealing device has a simple structure, needs no special tools during machining and installation, is convenient to install, has high reliability in anti-loosing and sealing and also plays a role of impact-free guiding effect on high-speed fluid entering the impeller.
Description
Technical field
The utility model belongs to the technical field of kinetic pump, relates to the inside and outside locking and seal arrangement of impeller nut of a kind of containment type.
Background technique
It is fastening that the rotary motive power pump impeller adopts impeller nut to carry out usually, in the structured design process of impeller nut, usually needs to consider following two factors: 1.. should avoid causing nut loosening even coming off because of reasons such as vibration, counter-rotatings; 2.. carry Korrosionsmedium and need protect pump shaft the time, impeller nut must have sealing function simultaneously, to isolate contacting of pump shaft and Korrosionsmedium.
At present, the proof measures of impeller nut comprises that floor clip is locking, the thread locking sealer is locking, pin is locking, spot welding is locking, pairs of anti-loose nut, and the lock type steel-wire screw-socket is locking or the like.From anti-loosing effect, more than most of structures can accomplish simple and reliable.Have only the impeller nut (joining seal ring) of minority structures such as lock type steel-wire screw-socket screw thread, the sealing of locking sealer also to possess sealing function simultaneously, still, there are some following problems respectively in these structures:
Steel-wire screw-socket is locking: 1.. and need special special tool with the processing of dress steel-wire screw-socket nut engaged screw thread, the check of bottom outlet screw thread, the installation of steel-wire screw-socket all need special special tool, and processing, check is inconvenient, it is big to install and remove difficulty.2.. locking reliability is not high enough, and anti-loosing effect is satisfactory for result not as pairs of anti-loose nut.
The thread locking sealer is locking: have certain temperature narrow limitation, in specific temperature range, anti-loosing effect is fine.But when surpassing this temperature range, then loose ability is prevented in the forfeiture locking, and the impeller nut of this structure need heat just usually and can dismantle.
The model utility content
In view of the above problems, the purpose of the utility model provides the locking and sealing combination device of the inside and outside impeller nut of a kind of containment type, has locking, sealing function simultaneously.
Specifically; The utility model provides a kind of containment type the inside and outside locking and seal arrangement of impeller nut; Hexagon nut in this device is arranged on the inside of the underpart of impeller nut, and seal ring is placed on the concave station of impeller end face, and seal ring contacts with the outer wall of the underpart of impeller nut.
Further, seal ring is the O RunddichtringO.
Further, the upper end portion of impeller nut is sphere or elliposoidal, helps reducing the hydraulic loss of impeller.
Further, the upper surface of hexagon nut contacts with the inwall of the underpart of impeller nut.The underpart of impeller nut is compresses seal when containing the locking hexagon nut, plays function locking and sealing, and the screw thread of protection pump shaft, impeller nut and the screw thread of pump shaft are avoided the erosion of medium, will lose fastening function if screw thread receives corrosion.
The height of hexagon nut can guarantee like this that greater than the inner height in the underpart of impeller nut hexagon nut contacts with impeller, impeller nut, makes the effective pretension of screw thread on hexagon nut, the impeller nut.
The utility model is simple in structure, need not special special tool when processing and installation, and it is convenient to install, and locking reliability with sealing is high, simultaneously the high-velocity fluid that gets into impeller is played nothing and impacts guide functions.The projected angle of impact of ingress flow direction and impeller nut, direction blade hour, the impact loss of its current is minimum, the outer shape and the water (flow) direction of impeller nut match, and can reduce departing from of flow, have therefore also reduced the impact loss of current.
Description of drawings
Fig. 1 loosens the apparatus structure schematic representation for traditional double nut;
Fig. 2 is the utility model structural representation.
Reference character:
1. impeller nut 2. impellers 3. hexagon nuts 4. seal rings
11. the underpart of upper end portion 12. impeller nuts of impeller nut
Embodiment
Below in conjunction with accompanying drawing and with impeller nut inside and outside the containment type locking with seal arrangement be example, the technological scheme of the utility model is at length explained.
As shown in Figure 2, the inside and outside impeller nut of the utility model containment type is locking to comprise spherical impeller nut 1, hexagon nut 3 and seal ring 4 with seal arrangement, and seal ring can adopt the O RunddichtringO.The function of 3 locking of hexagon nut impeller 2; The upper end portion 11 of impeller nut 1 is spherical or the ellipsoid shape; The underpart 12 of impeller nut is compresses seal 4 when containing locking hexagon nut 3; Play function locking and sealing, the screw thread of protection pump shaft, impeller nut and the screw thread of pump shaft are avoided the erosion of medium, will lose fastening function if screw thread receives corrosion.
Because spherical impeller nut 1 is positioned at the significant points of impeller blade import, the upper end portion 11 of impeller nut is designed to the hydraulic loss (impact loss and eddy loss) that spherical shape helps reducing impeller 2, thereby improves the hydraulic performance of impeller 2 machineries.Because hexagon nut 3 is built in the underpart 12 of impeller nut, does not contact with aggressive medium, can select high-intensity carbon steel standard fasteners.
Installation process in the face of the utility model describes down.
At first; The impeller 2 of band sealing concave station is installed on the pump shaft of band key; With hexagon nut 3 lockings, be placed in seal ring 4 on the concave station of impeller end face then, again with spherical impeller nut 1 locking hexagon nut 3; And the extruding and the axial compression seal ring 4 of the upper surface through hexagon nut 3 and the inwall of the underpart 12 of impeller nut, thereby realize locking locking with the function that seals.
The utility model protection is not limited to the described concrete structure layout of listed examples in the specification embodiment.Obviously, in the protection domain of the utility model claims, multiple different modification and textural association can also be arranged.
Claims (5)
1. the inside and outside locking and seal arrangement of impeller nut of a containment type; It is characterized in that: hexagon nut (3) is arranged on the inside of the underpart (12) of impeller nut; Seal ring (4) is placed on the concave station of impeller (2) end face, and seal ring (4) contacts with the outer wall of the underpart (12) of impeller nut.
2. the inside and outside locking and seal arrangement of impeller nut of containment type according to claim 1, it is characterized in that: seal ring (4) is the O RunddichtringO.
3. the inside and outside locking and seal arrangement of impeller nut of containment type according to claim 1 is characterized in that: the upper end portion of impeller nut (11) are sphere or elliposoidal.
4. according to the locking and seal arrangement of impeller nut inside and outside each described containment type of claim 1 to 3, it is characterized in that: the upper surface of hexagon nut (3) contacts with the inwall of the underpart (12) of impeller nut.
5. the inside and outside locking and seal arrangement of impeller nut of containment type according to claim 4 is characterized in that: the height of hexagon nut (3) is greater than the inner height in the underpart (12) of impeller nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202830278U CN202170889U (en) | 2011-08-05 | 2011-08-05 | Containing-type anti-loosing and sealing device for inner and outer impeller nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202830278U CN202170889U (en) | 2011-08-05 | 2011-08-05 | Containing-type anti-loosing and sealing device for inner and outer impeller nuts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170889U true CN202170889U (en) | 2012-03-21 |
Family
ID=45829085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202830278U Expired - Lifetime CN202170889U (en) | 2011-08-05 | 2011-08-05 | Containing-type anti-loosing and sealing device for inner and outer impeller nuts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056533A (en) * | 2019-05-21 | 2019-07-26 | 安徽卧龙泵阀股份有限公司 | A kind of impeller of chemical centrifugal pump locking device |
-
2011
- 2011-08-05 CN CN2011202830278U patent/CN202170889U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056533A (en) * | 2019-05-21 | 2019-07-26 | 安徽卧龙泵阀股份有限公司 | A kind of impeller of chemical centrifugal pump locking device |
| CN110056533B (en) * | 2019-05-21 | 2024-04-09 | 安徽卧龙泵阀股份有限公司 | Chemical pump impeller locking device |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528000 Guangdong Province, Foshan city Chancheng District River Road No. 14 Patentee after: GUANGDONG KENFLO PUMP CO., LTD. Address before: 528000 Guangdong Province, Foshan city Chancheng District River Road No. 14 Patentee before: Guangdong Foshan Water Pump Factory Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |