CN104675746A - Light impeller transmission device - Google Patents
Light impeller transmission device Download PDFInfo
- Publication number
- CN104675746A CN104675746A CN201310635457.5A CN201310635457A CN104675746A CN 104675746 A CN104675746 A CN 104675746A CN 201310635457 A CN201310635457 A CN 201310635457A CN 104675746 A CN104675746 A CN 104675746A
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump shaft
- locking nut
- taper sheath
- transmission device
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of mechanical engineering pumps, in particular to a light impeller transmission device which is provided with a pump shaft and an impeller. The light impeller transmission device is characterized by being provided with a lock nut and a conical sleeve, an inner hole at one end of the impeller is a conical hole, an outer wall of the impeller opposite to the conical hole is provided with a thread section, the lock nut is formed by coaxially fixing an inner nut and a spacer sleeve at one end of the inner nut, and the conical sleeve and the lock nut respectively sequentially sleeve the pump shaft. The front of the conical sleeve is inserted in the conical hole of the impeller, the rear end of the conical sleeve abuts against the spacer sleeve of the lock nut, and the lock nut is in threaded connection with the thread section on the outer wall of the impeller. Through the rotation of the pump shaft, the relative motion of the lock nut and the thread section on the outer wall of the impeller always extrudes the conical sleeve, so that the outer surface of the conical sleeve is in a certain interference fit with the impeller, the inner surface and the pump shaft, and the light impeller transmission device has the advantages of being simple in structure and convenient to operate.
Description
Technical field
The present invention relates to mechanical engineering pump technical field, specifically a kind of light-duty impeller transmission device.
Background technique
There is a kind of small flow, high-lift pump at present, be characterized in that shaft drive moment of torsion is little, shaft diameter is very little, only has 10 ~ 25mm, and impeller diameter is at about 100mm.If when adopting key transmission, then keyway must be processed on axle.And the stress of keyway is concentrated the safety effects of thin axle very large after processing.So the thin shaft drive of this specification is applicable to adopting frictional force to carry out transmission, elimination keyway stress concentrates the impact on axle, ensures pump maintainability.
But up to the present, also do not have a kind of such employing frictional force to carry out the device of transmission.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, the light-duty impeller transmission device that a kind of structure is simple, easy to operate, carried out impeller transmission by the pretightening force cooperative action of frictional force and screw thread is provided.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of light-duty impeller transmission device, be provided with pump shaft and impeller, it is characterized in that being provided with locking nut and taper sheath, the endoporus of described impeller one end is cone shape hole, the impeller outer wall of relative cone shape hole is provided with thread section, described locking nut is coaxially fixedly formed by the interstage sleeve of inner nut and inner nut one end, taper sheath and locking nut are enclosed within pump shaft respectively successively, taper sheath front portion is inserted in the cone shape hole of impeller, the interstage sleeve of taper sheath rear end and locking nut is inconsistent, locking nut is threaded through the thread section of inner nut with impeller outer wall, rotated by pump shaft, the relative movement of the thread section of locking nut and impeller outer wall extrudes taper sheath all the time, make taper sheath outer surface and impeller, internal surface and pump shaft form certain interference and turn and join, because interference fit makes surface of contact there is the very large pressure of the order of magnitude, and there is certain friction factor on mating parts surface, like this, at impeller and taper sheath, huge frictional force is there is between taper sheath and locking nut, under the effect of frictional force, pump shaft just can drive taper sheath, impeller carries out work.
The rotation direction of locking nut of the present invention is consistent with the sense of rotation of pump shaft, makes the movement tendency of locking nut and impeller be extruding taper sheath all the time, ensures that taper sheath and axle and impeller exist magnitude of interference all the time.
The present invention, owing to adopting said structure, has the advantages such as structure is simple, easy to operate.
accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Reference character: pump shaft 1, impeller 2, locking nut 3, taper sheath 4.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is further described:
As shown in drawings, a kind of light-duty impeller transmission device, be provided with pump shaft 1 and impeller 2, it is characterized in that being provided with locking nut 3 and taper sheath 4, the endoporus of described impeller 2 one end is cone shape hole, impeller 2 outer wall of relative cone shape hole is provided with thread section, described locking nut 3 is coaxially fixedly formed by the interstage sleeve of inner nut and inner nut one end, taper sheath 4 and locking nut 3 are enclosed within pump shaft 1 respectively successively, taper sheath 4 front portion is inserted in the cone shape hole of impeller 2, the interstage sleeve of taper sheath 4 rear end and locking nut 2 is inconsistent, locking nut 3 is threaded through the thread section of inner nut with impeller 2 outer wall, rotated by pump shaft 1, locking nut 3 extrudes taper sheath 4 all the time with the relative movement of the thread section of impeller 2 outer wall, make taper sheath 4 outer surface and impeller 2, internal surface and pump shaft 1 form certain interference and turn and join, because interference fit makes surface of contact there is the very large pressure of the order of magnitude, and there is certain friction factor on mating parts surface, like this, at impeller 2 and taper sheath 4, huge frictional force is there is between taper sheath 4 and locking nut 3, under the effect of frictional force, pump shaft 1 just can drive taper sheath 4, impeller 2 carries out work.
The thread rotary orientation of locking nut 3 of the present invention is consistent with the sense of rotation of pump shaft 1, makes the movement tendency of locking nut 3 and impeller 2 be extruding taper sheath 4 all the time, ensures that taper sheath 4 exists magnitude of interference all the time with pump shaft 1 and impeller 2.
Taper sheath 4 of the present invention is fixed in impeller 2 cone shape hole under the effect of locking nut 3, and taper sheath 4 outer surface and impeller 2, taper sheath 4 internal surface and pump shaft 1 form certain interference and turn and join.Because interference fit makes surface of contact there is the very large pressure of the order of magnitude, part surface has certain friction factor simultaneously.Like this, at impeller 2 and taper sheath 4, there is huge frictional force between taper sheath 4 and locking nut 3, just can drive taper sheath 4 at the effect lower shaft of frictional force, impeller 2 carries out work.In addition, by selecting the rotation direction of locking nut 3 and impeller 2 screw thread, making the movement tendency of locking nut 3 and impeller 2 be extruding taper sheath 4 all the time, ensure that taper sheath 4 exists magnitude of interference all the time with pump shaft 1 and impeller 2.
The present invention, owing to adopting said structure, has the advantages such as structure is simple, easy to operate.
Claims (2)
1. a light-duty impeller transmission device, be provided with pump shaft and impeller, it is characterized in that being provided with locking nut and taper sheath, the endoporus of described impeller one end is cone shape hole, the impeller outer wall of relative cone shape hole is provided with thread section, described locking nut is coaxially fixedly formed by the interstage sleeve of inner nut and inner nut one end, taper sheath and locking nut are enclosed within pump shaft respectively successively, taper sheath front portion is inserted in the cone shape hole of impeller, the interstage sleeve of taper sheath rear end and locking nut is inconsistent, and locking nut is threaded through the thread section of inner nut with impeller outer wall.
2. the light-duty impeller transmission device of one according to claim 1, is characterized in that the rotation direction of described locking nut is consistent with the sense of rotation of pump shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635457.5A CN104675746A (en) | 2013-12-03 | 2013-12-03 | Light impeller transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635457.5A CN104675746A (en) | 2013-12-03 | 2013-12-03 | Light impeller transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675746A true CN104675746A (en) | 2015-06-03 |
Family
ID=53311210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310635457.5A Pending CN104675746A (en) | 2013-12-03 | 2013-12-03 | Light impeller transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675746A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848169A (en) * | 2019-12-19 | 2020-02-28 | 盐城海纳汽车零部件有限公司 | High stability cooling water pump |
| CN111720736A (en) * | 2020-06-23 | 2020-09-29 | 杨小平 | Easily-assembled and disassembled pressure reducing valve and assembling and disassembling method |
| CN114278573A (en) * | 2021-12-24 | 2022-04-05 | 江苏泰丰泵业有限公司 | Dry type sewage pump |
| CN115788944A (en) * | 2023-01-16 | 2023-03-14 | 中国电建集团透平科技有限公司 | Large-scale wind-tunnel fan drive shafting structure |
-
2013
- 2013-12-03 CN CN201310635457.5A patent/CN104675746A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848169A (en) * | 2019-12-19 | 2020-02-28 | 盐城海纳汽车零部件有限公司 | High stability cooling water pump |
| CN111720736A (en) * | 2020-06-23 | 2020-09-29 | 杨小平 | Easily-assembled and disassembled pressure reducing valve and assembling and disassembling method |
| CN114278573A (en) * | 2021-12-24 | 2022-04-05 | 江苏泰丰泵业有限公司 | Dry type sewage pump |
| CN115788944A (en) * | 2023-01-16 | 2023-03-14 | 中国电建集团透平科技有限公司 | Large-scale wind-tunnel fan drive shafting structure |
| CN115788944B (en) * | 2023-01-16 | 2023-04-18 | 中国电建集团透平科技有限公司 | Large-scale wind-tunnel fan drive shafting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |