CN201148992Y - Axial adjustment structure of impeller - Google Patents
Axial adjustment structure of impeller Download PDFInfo
- Publication number
- CN201148992Y CN201148992Y CNU2007200776821U CN200720077682U CN201148992Y CN 201148992 Y CN201148992 Y CN 201148992Y CN U2007200776821 U CNU2007200776821 U CN U2007200776821U CN 200720077682 U CN200720077682 U CN 200720077682U CN 201148992 Y CN201148992 Y CN 201148992Y
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- CN
- China
- Prior art keywords
- impeller
- pump
- pump shaft
- cover
- threads
- 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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Abstract
An axial adjusting structure of an impeller is composed of a pump body, a pump cover, an impeller, a pump shaft and a suspension frame. the impeller is arranged in the pump body; on end of the pump shaft is connected with the impeller through a impeller hub; the pump cover is arranged on the pump body and located on one side of the impeller; a friction bearing plate is arranged in the pump body and located in front of the impeller; outer threads are formed at the rear end of the impeller hub; outer threads are formed in the corresponding position of the pump shaft; the rotation direction of the threads on the impeller hub is opposite to the rotation direction of the threads on the pump shaft; a front and back thread connecting sleeve is arranged between the threads of the impeller hub and the threads of the pump shaft; and a retaining nut is arranged in the position of the pump shaft, which is on one side of the front and back thread connecting sleeve. In the utility model, a structure with forward and backward threads is arranged in the axial adjusting structure, and the front and back thread connecting sleeve causes the impeller hub and the pump shaft to move axially in two opposite directions, thus adjusting the axial position of the impeller. The axial adjusting structure has the advantages of simple structure, convenient usage, no need for disassembling the pump and ensured efficient operation of the water pump.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to pump, particularly a kind of axial adjustment structure of impeller.
Background technique:
Water pump vane often need carry out axial adjustment.Change water pump vane and pump cover and hold the gap of rubbing between the plate, can make water pump reach optimal operational condition.In the prior art, add Shim by the dismounting water pump and realize regulating, its shortcoming is to dismantle pump, and frequent dismounting is easy to the generation accident, and adds Shim and can not realize dynamic adjustments; Perhaps by the water pump suspension, allow bearing be contained in the sleeve, sleeve can slide on suspension, regulates sliding distance by bolt, thereby realizes axial adjustment, but structure is comparatively huge, the cost height.
Summary of the invention:
The purpose of this utility model provides a kind of axial adjustment structure of impeller, the axial adjustment structure of described this impeller to solve in the prior art impeller shaft to controlling device can not dynamic adjustments, baroque technical problem.
The axial adjustment structure of this impeller of the present utility model is by the pump housing, pump cover, impeller, pump shaft and suspension constitute, described impeller is arranged in the pump housing, one end of described pump shaft is connected with impeller, described pump cover is arranged on the pump housing and is positioned at impeller one side, in the pump housing, the front end of impeller is provided with and holds the plate that rubs, described suspension is connected with pump cover, wherein, the wheel hub afterbody of described impeller is provided with outside thread, described pump shaft is provided with outside thread, the externally threaded rotation direction of impeller hub afterbody is opposite with the externally threaded rotation direction of pump shaft, between impeller hub afterbody and pump shaft, be provided with a positive and negative cover that is threaded, the described positive and negative cover that is threaded is made of plus thread section and left-hand thread section, described plus thread section matches with the outside thread of impeller hub afterbody, described left-hand thread section matches with outside thread on the pump shaft, is provided with locking nut between the end face of the described positive and negative cover that is threaded and the pump shaft.
Further, the outside thread of impeller hub afterbody equates with the externally threaded pitch of pump shaft.
Working principle of the present utility model is: the afterbody at impeller hub is provided with screw thread, relevant position at pump shaft also is provided with screw thread, connect impeller and pump shaft by the positive and negative cover that is threaded, because the thread rotary orientation on impeller hub and the pump shaft is opposite, when rotation positive and negative when cover of being threaded, the two opposite vertically direction motion, can in certain axial range, regulate the axial position of impeller so arbitrarily, thereby control impeller and pump cover, impeller and hold the gap of rubbing between the plate, guarantee that the gap is in the scope of designing requirement, and can after certain wearing and tearing are arranged, readjust the position of requirement, and do not need to dismantle pump.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model is arranged at impeller shaft in regulation structure with positive and negative worm structure, make impeller hub and pump shaft produce rightabout motion vertically by the positive and negative cover that is threaded, realization is to the adjusting of impeller axial position, simple in structure, easy to use, do not need to dismantle pump, guaranteed the high efficiency operation of water pump.
Description of drawings:
Fig. 1 is the structural representation of the axial adjustment structure of impeller of the present utility model.
Embodiment:
As shown in Figure 1, the axial adjustment structure of impeller of the present utility model is by the pump housing 1, pump cover 3, impeller 2, pump shaft 5 and suspension 4 constitute, described impeller 2 is arranged in the described pump housing 1, described pump shaft 5 one ends link to each other with described impeller 2 by impeller hub 21, described pump cover 3 is arranged on the described pump housing 1 and is positioned at described impeller 2 one sides, in the described pump housing 1, being positioned at described impeller 2 front ends is provided with and holds the plate 6 that rubs, wherein, afterbody at described impeller hub 21 is provided with outside thread, described pump shaft 5 relevant positions are provided with outside thread, the rotation direction of the screw thread on the rotation direction of the screw thread on the described impeller hub 21 and the described pump shaft 5 is opposite, between the screw thread of the screw thread of described impeller hub 21 and described pump shaft 5, be provided with a positive and negative cover 7 that is threaded, the described positive and negative cover 7 that is threaded is made of plus thread section 71 and left-hand thread section 72, threads engaged on described plus thread section 71 and the described impeller hub 21, threads engaged on described left-hand thread section 72 and the described pump shaft 5, the described positive and negative pump shaft 5 that is threaded cover 7 one sides is provided with locking nut 8.
Further, the pitch of the screw thread on the screw thread on the described impeller hub 21 and the described pump shaft 5 equates.
Concrete, the front end of described pump shaft 5 is connected with described impeller 2 by key 9, when the described positive and negative cover that is threaded of rotation 7 time, because impeller hub 21 is opposite with the moving direction of pump shaft 5, simultaneously positive and negative being threaded overlapped nut 8 lockings that are locked, institute is so that impeller 2 produces axial motions, and the axial position of impeller 2 is carried out dynamic adjustments.
Claims (2)
1. the axial adjustment structure of an impeller, by the pump housing, pump cover, impeller, pump shaft and suspension constitute, described impeller is arranged in the pump housing, one end of described pump shaft is connected with impeller, described pump cover is arranged on the pump housing and is positioned at impeller one side, in the pump housing, the front end of impeller is provided with and holds the plate that rubs, described suspension is connected with pump cover, it is characterized in that: the wheel hub afterbody of described impeller is provided with outside thread, described pump shaft is provided with outside thread, the externally threaded rotation direction of impeller hub afterbody is opposite with the externally threaded rotation direction of pump shaft, between impeller hub afterbody and pump shaft, be provided with a positive and negative cover that is threaded, the described positive and negative cover that is threaded is made of plus thread section and left-hand thread section, described plus thread section matches with the outside thread of impeller hub afterbody, described left-hand thread section matches with outside thread on the pump shaft, is provided with locking nut between the end face of the described positive and negative cover that is threaded and the pump shaft.
2. the axial adjustment structure of impeller as claimed in claim 1, it is characterized in that: the outside thread of impeller hub afterbody equates with the externally threaded pitch of pump shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200776821U CN201148992Y (en) | 2007-12-28 | 2007-12-28 | Axial adjustment structure of impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200776821U CN201148992Y (en) | 2007-12-28 | 2007-12-28 | Axial adjustment structure of impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201148992Y true CN201148992Y (en) | 2008-11-12 |
Family
ID=40116760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200776821U Expired - Fee Related CN201148992Y (en) | 2007-12-28 | 2007-12-28 | Axial adjustment structure of impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201148992Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434497A (en) * | 2011-11-18 | 2012-05-02 | 浙江科尔泵业股份有限公司 | Self-tightening method and self-tightening device for axial location of pump core of centrifugal pump |
| CN103370544A (en) * | 2011-02-21 | 2013-10-23 | 株式会社Ihi | Turbo device |
| CN104819165A (en) * | 2015-04-14 | 2015-08-05 | 川源(中国)机械有限公司 | Water guide cone of submersible pump |
-
2007
- 2007-12-28 CN CNU2007200776821U patent/CN201148992Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103370544A (en) * | 2011-02-21 | 2013-10-23 | 株式会社Ihi | Turbo device |
| CN102434497A (en) * | 2011-11-18 | 2012-05-02 | 浙江科尔泵业股份有限公司 | Self-tightening method and self-tightening device for axial location of pump core of centrifugal pump |
| CN102434497B (en) * | 2011-11-18 | 2013-09-04 | 浙江科尔泵业股份有限公司 | Self-tightening method and self-tightening device for axial location of pump core of centrifugal pump |
| CN104819165A (en) * | 2015-04-14 | 2015-08-05 | 川源(中国)机械有限公司 | Water guide cone of submersible 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: 20081112 Termination date: 20121228 |