CN205315342U - Impeller fastens structure for pump - Google Patents
Impeller fastens structure for pump Download PDFInfo
- Publication number
- CN205315342U CN205315342U CN201520953860.7U CN201520953860U CN205315342U CN 205315342 U CN205315342 U CN 205315342U CN 201520953860 U CN201520953860 U CN 201520953860U CN 205315342 U CN205315342 U CN 205315342U
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- pump shaft
- nut
- screw
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides an impeller fastens structure for pump, including impeller, pump shaft and impeller nut, the impeller passes through the key -type connection and is in on the pump shaft, impeller nut is connected with the screw thread of pump shaft, and wants to contradict with the impeller, the last holding screw that is equipped with of impeller nut, and the axle head both sides of pump shaft are equipped with sealing screw, and sealing screw and impeller nut's contact surface department are equipped with O type sealing washer. The utility model aims to provide an impeller fastens structure for pump of rational in infrastructure, fixed reliable, easy dismounting, job stabilization, long service life.
Description
Technical field
This utility model relates to mechanical engineering pump technical field, especially relates to a kind of impeller of pump fastening structure.
Background technology
Pump is widely used in the every field of daily production and life, and play an important role wherein, the pump great majority adopting common configuration form are centrifugal pump, and traditional centrifugal impeller of pump is all operationally do not allow reversion, otherwise impeller is likely to come off from pump shaft, affects the use of centrifugal pump.
The fixing of traditional centrifugal pump impeller is all be fixed on pump shaft with impeller nut by impeller, namely impeller is fixed on pump shaft, impeller nut is threadeded with pump shaft, and it is inconsistent with impeller, prevent impeller from getting loose when being beneficial to rotate forward, owing to pump shaft and impeller press thread rotary orientation design, ensure that pump rotor turns tighter and tighter when rotating, but when if pump rotor produces to reverse, characteristic due to screw thread, impeller nut then produces counter-rotating, cause that impeller loosens, and then impeller cannot be fixed, ultimately result in impeller to come off, in order to prevent impeller loose or dislocation, it is typically employed between impeller nut and impeller and stop washer is installed, the deficiency of this structure is: for the impeller that weight is very big, during owing to rotating, the inertia of impeller is very big, when impeller reverses, stop washer is easy to be cut off, cause impeller loose or dislocation, and at present the setting of impeller securing member is only merely and its one end is fastened, such impeller is when running, the axle head of pump shaft is easy to as often rotate and loosen, there is very big potential safety hazard.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of impeller of pump fastening structure of a kind of rational in infrastructure, fixing reliable, easy accessibility, working stability, long service life.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of impeller of pump fastening structure, including impeller, pump shaft and impeller nut, described impeller is connected on described pump shaft by key, described impeller nut is connected with the screw thread of described pump shaft, and wants to conflict with impeller, and described impeller nut is provided with holding screw, the axle head both sides of described pump shaft are provided with the contact surface place of sealing screw, described sealing screw and described impeller nut and are provided with O RunddichtringO.
Further, described impeller nut is stop nut structure.
Further, described holding screw is provided with two, and substantially symmetrical about its central axis about pump shaft.
Further, described sealing screw is provided with two, and substantially symmetrical about its central axis about pump shaft.
Further, described holding screw is relative with the installation direction of described sealing screw.
Further, the material of described O RunddichtringO is silica gel.
This utility model has the advantage that and provides the benefit that:
(1) this utility model is by arranging holding screw and sealing screw, is each attached on impeller nut, and is mounted opposite, impeller is carried out bidirectional fastening, it is possible to effectively prevents impeller from occurring in the course of the work loosening, the phenomenon come off.
(2) what described impeller nut adopted is the form of stop nut, reaches good anti-loosing effect.
(3) described O RunddichtringO is arranged on the contact surface place of sealing screw and impeller nut, good airproof performance, effectively ensure that the impeller in the pump housing and pump shaft are when high speed rotating, in pump lubricating oil leak outside and introduced contaminants be not easily accessible pump body, it is therefore prevented that the impeller thus caused and the service wear of pump shaft.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, impeller; 2, holding screw; 3, O RunddichtringO; 4, pump shaft; 5, key; 6, sealing screw; 7, stop nut.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Figure 1, this utility model provides a kind of impeller of pump fastening structure, including impeller 1, pump shaft 4 and impeller nut 7, impeller 1 is connected on pump shaft 4 by key 5, impeller nut 7 is connected with the screw thread of pump shaft 4, and it is inconsistent with impeller 1, impeller nut 7 is provided with holding screw 2, the axle head both sides of pump shaft 4 are provided with sealing screw 6, the contact surface place of sealing screw 6 and impeller nut 7 is provided with O RunddichtringO 3, the material of O RunddichtringO is silica gel, O RunddichtringO the impeller effectively ensureing in the pump housing and pump shaft are set when high speed rotating, in pump lubricating oil leak outside and introduced contaminants be not easily accessible pump body, prevent the service wear of impeller and the pump shaft thus caused.
Specifically, impeller nut 7 is stop nut structure, reaches good anti-loosing effect. Holding screw 2 is provided with two, and substantially symmetrical about its central axis about pump shaft 4. Sealing screw 6 is provided with two, and substantially symmetrical about its central axis about pump shaft 4, and holding screw 2 is relative with the installation direction of sealing screw 6, and impeller is carried out bidirectional fastening, it is possible to effectively prevent impeller from occurring in the course of the work loosening, the phenomenon come off.
Above an embodiment of the present utility model is described in detail, but described content has been only preferred embodiment of the present utility model, it is impossible to be considered for limiting practical range of the present utility model. All equalizations made according to this utility model application range change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (6)
1. an impeller of pump fastening structure, including impeller (1), pump shaft (4) and impeller nut (7), it is characterized in that: described impeller (1) is connected on described pump shaft (4) by key (5), described impeller nut (7) is connected with the screw thread of described pump shaft (4), and it is inconsistent with impeller (1), described impeller nut (7) is provided with holding screw (2), the axle head both sides of described pump shaft (4) are provided with sealing screw (6), the contact surface place of described sealing screw (6) and described impeller nut (7) is provided with O RunddichtringO (3).
2. a kind of impeller of pump fastening structure as claimed in claim 1, it is characterised in that: described impeller nut (7) is stop nut structure.
3. impeller of pump fastening structure as claimed in claim 1 a kind of, it is characterised in that: described holding screw (2) is provided with two, and substantially symmetrical about its central axis about pump shaft (4).
4. impeller of pump fastening structure as claimed in claim 1 a kind of, it is characterised in that: described sealing screw (6) is provided with two, and substantially symmetrical about its central axis about pump shaft (4).
5. impeller of pump fastening structure as claimed in claim 1 a kind of, it is characterised in that: the installation direction of described holding screw (2) and described sealing screw (6) is relative.
6. a kind of impeller of pump fastening structure as claimed in claim 1, it is characterised in that: the material of described O RunddichtringO (3) is silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520953860.7U CN205315342U (en) | 2015-11-25 | 2015-11-25 | Impeller fastens structure for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520953860.7U CN205315342U (en) | 2015-11-25 | 2015-11-25 | Impeller fastens structure for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315342U true CN205315342U (en) | 2016-06-15 |
Family
ID=56311836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520953860.7U Expired - Fee Related CN205315342U (en) | 2015-11-25 | 2015-11-25 | Impeller fastens structure for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762805A (en) * | 2016-11-15 | 2017-05-31 | 江苏芬奇工业设备制造有限公司 | A kind of high pressure chemical industry centrifugal pump impeller locking device |
-
2015
- 2015-11-25 CN CN201520953860.7U patent/CN205315342U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762805A (en) * | 2016-11-15 | 2017-05-31 | 江苏芬奇工业设备制造有限公司 | A kind of high pressure chemical industry centrifugal pump impeller locking device |
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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: 20160615 Termination date: 20191125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |