CN205977792U - Locking positioning apparatus - Google Patents
Locking positioning apparatus Download PDFInfo
- Publication number
- CN205977792U CN205977792U CN201620906406.0U CN201620906406U CN205977792U CN 205977792 U CN205977792 U CN 205977792U CN 201620906406 U CN201620906406 U CN 201620906406U CN 205977792 U CN205977792 U CN 205977792U
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- China
- Prior art keywords
- locking
- shaft shoulder
- shaft
- tensioning sleeve
- pump shaft
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- 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.)
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Abstract
The utility model discloses a locking positioning apparatus, including the device body, the the device body sets up the shaft shoulder department at the pump shaft, the shaft shoulder department of pump shaft be provided with transition circular arc concave, the device body include tensioning cover and locking ring, tensioning cover ways establish in shaft shoulder department, locking ring locking on the outer circumference of tensioning cover, tensioning cover inside be provided with with the shaft shoulder transition circular arc concave matched with transition circle arc convex of pump shaft. This locking positioning apparatus can effectively prevent the production of shaft shoulder root stress concentration phenomenon, has strengthened the use intensity of pump shaft, has guaranteed that the pump shaft can not split in the use, has prolonged the life of pump shaft, this locking positioning apparatus moreover, and simple structure, the preparation is convenient, and is with low costs, excellent in use effect.
Description
Technical field
This utility model is related to impeller pump technical field, especially relates to a kind of locking positioning device.
Background technology
Impeller hub or axle sleeve must position by milling out the shaft shoulder, so the shaft shoulder root no fillet in processing, in order to ensure
The flatness of two planes, can cause shaft shoulder root to tear using existing process, operationally easily cause shaft shoulder Root Stress collection
In, and lead to axle fracture.
Chinese patent literature（The day for announcing：On April 30th, 2014, notification number：CN203570666U）Disclose a kind of processing
Cost saves, impeller positioning and locking device easy for installation.It includes the wrinkle shape locking axle sleeve on optical axis, described wrinkle shape locking
Axle sleeve periphery is provided with positioning shaft sleeve, and described wrinkle shape locking axle sleeve and positioning shaft sleeve are interference fit.This utility model is applied to leaf
Wheel is installed.
Technique scheme discloses a kind of leaf positioning and locking device, but this technical pattern is complicated, installation operation inconvenience.
Utility model content
The purpose of this utility model is to solve existing employing shaft shoulder positioning, easily causing the tear of shaft shoulder root, running
When easily cause shaft shoulder Root Stress and concentrate, the problems such as lead to axle fracture, and put forward one kind it can be avoided that impeller is directly connect with the shaft shoulder
Touch, prevent stress concentration, the intensity at shaft shoulder change can be effectively improved it is ensured that shaft shoulder root does not rupture, the lock of long service life
Clamping and positioning device.
This utility model is realized its technical purpose and be employed technical scheme comprise that：A kind of locking positioning device, including device
Body, this device body is arranged at the shaft shoulder of pump shaft, is provided with transition arc concave surface at the described shaft shoulder of pump shaft, described
Device body includes tensioning sleeve and retaining ring, and described tensioning sleeve set is set at the shaft shoulder, and described retaining ring is locked at tensioning
On the excircle of set, it is convex that described tensioning sleeve is internally provided with the transition arc matching with the shaft shoulder transition arc concave surface of pump shaft
Face.This locking positioning device, is arranged at the shaft shoulder of pump shaft, is provided with transition arc concave surface at the shaft shoulder of pump shaft, it is possible to reduce
Stress concentration, and device body includes a tensioning sleeve and a retaining ring, tensioning sleeve is directly set on the shaft shoulder, tensioning sleeve
Internal engagement shaft shoulder transition arc concave surface is provided with transition arc convex surface, and when tensioning sleeve is set at the shaft shoulder, transition arc convex surface is firm
Snap in well transition arc concave internal, whole tensioning sleeve is locked at the shaft shoulder by the retaining ring being arranged on tensioning sleeve excircle
Place is it is ensured that in running, while shaft shoulder root does not have the generation of stress concentration phenomenon, also effectively enhance pump shaft
Use intensity it is ensured that pump shaft will not rupture in use, extend the service life of pump shaft, and this locking positioning
Device, structure is simple, easy to make, low cost, and using effect is good.
Preferably, described tensioning sleeve internal engagement pump shaft is provided with shoulder hole, described shoulder hole large pore
Depth is more than the depth of small-bore.In order that tensioning sleeve is matched with pump shaft, increase the shaft shoulder at use intensity, tensioning sleeve upper
State structure so that the power born of pump shaft small end is passed through smoothly to be delivered to the big end of pump shaft through tight set.
Preferably, the outer circumference surface of described tensioning sleeve includes a taper surface and a cylindroid, described taper surface
The corresponding inner step hole of small end macropore setting, the aperture setting of the corresponding shoulder hole of described cylindroid, described taper surface
Cylindroid transition junction is provided with locking arc groove.The outer circumference surface of tensioning sleeve is set to said structure, can either realize
Power has smooth transfer, facilitates the installation of impeller, can also realize the installation of retaining ring and effective locking simultaneously.
Preferably, described locking arc groove is arranged on the medium position of the length direction of tensioning sleeve, described retaining ring
It is fastened on inside locking arc groove.Being disposed to of locking arc groove enables retaining ring locking effective to tensioning sleeve it is ensured that pump shaft
Normal use.
Preferably, described retaining ring is made up of the ring body of cylindrical structural, the groove depth of described locking arc groove is more than
The cylindrical diameter of 1/3rd retaining rings.Retaining ring is set to cylindrical structural, can increase the coupling mechanism force of retaining ring, simultaneously
Convenient installation, with the tight fit locking arc groove it is ensured that retaining ring will not disengage in use inside locking arc groove.
Preferably, tensioning mouth is offered vertically on described tensioning sleeve.On tensioning sleeve, tensioning mouth is set, convenient installation
And locking.
Preferably, the distance between the end of tensioning sleeve and shaft shoulder shaft shoulder height more than 2.In order to be prevented effectively from axle
Power is disperseed transmission by tensioning sleeve by the stress concentration at shoulder, extends the service life of pump shaft.
The beneficial effects of the utility model are：This locking positioning device, can effectively prevent the shaft shoulder Root Stress from concentrating existing
The generation of elephant, enhances the use intensity of pump shaft it is ensured that pump shaft will not rupture in use, extends the use of pump shaft
Life-span, and this locking positioning device, structure is simple, easy to make, low cost, and using effect is good.
Brief description
Fig. 1 is a kind of structural representation of this utility model locking positioning device；
Fig. 2 is a kind of structural representation of this utility model locking positioning device and pump shaft cooperation；
Fig. 3 is the left view in Fig. 2；
In figure：1st, device body, 2, pump shaft, 3, the shaft shoulder, 4, transition arc concave surface, 5, tensioning sleeve, 6, retaining ring, 7, transition
Arc convex surface, 8, shoulder hole, 9, taper surface, 10, cylindroid, 11, locking arc groove, 12, tensioning mouth.
Specific embodiment
Below by specific embodiment and combine accompanying drawing the technical solution of the utility model is described in further detail.
Embodiment 1：
In embodiment shown in Fig. 1, Fig. 2, a kind of locking positioning device, including device body 1, this device body 1 sets
Put at the shaft shoulder 3 of pump shaft 2, at the shaft shoulder 3 of pump shaft 2, be provided with transition arc concave surface 4, device body 1 includes tensioning sleeve 5 and lock
Tight ring 6, tensioning sleeve set 5 is set at the shaft shoulder 3, and retaining ring 6 is locked on the excircle of tensioning sleeve 5, and tensioning sleeve 5 is internally provided with
The transition arc convex surface 7 matching with the shaft shoulder transition arc concave surface 4 of pump shaft 2.Tensioning sleeve 5 internal engagement pump shaft 2 is provided with rank
Terraced hole 8, the depth of shoulder hole 8 large pore is more than the depth of small-bore.Tensioning mouth 12 is offered vertically on tensioning sleeve 5（See
Fig. 3）.The distance between the end of tensioning sleeve 5 and the shaft shoulder 3 shaft shoulder height more than 2.
The outer circumference surface of tensioning sleeve 5 includes a taper surface 9 and a cylindroid 10, and the small end of taper surface 9 corresponds to internal step
The macropore setting in terraced hole 8, the aperture setting of the corresponding shoulder hole 8 of cylindroid 10, taper surface 9 and the setting of cylindroid 10 transition junction
There is locking arc groove 11.Locking arc groove 11 is arranged on the medium position of the length direction of tensioning sleeve 5, and retaining ring 6 is fastened on locking arc
Inside groove 11.Retaining ring 6 is made up of the ring body of cylindrical structural, and the groove depth of locking arc groove 11 is more than 1/3rd retaining rings 6
Cylindrical diameter.
This locking positioning device, by arranging retaining ring 6 and tensioning sleeve 5, tensioning sleeve 5 is set at the shaft shoulder 3 of pump shaft,
It is internally provided with, in tensioning sleeve 5, the transition arc convex surface matching with the transition arc concave surface at the shaft shoulder, both make in cooperation simultaneously
Obtain pump shaft and form one so that the transmission of power is more uniform with tensioning sleeve 5, and also will not be because being used directly to position leaf at the shaft shoulder
Wheel or axle sleeve, more do not result in the tear of shaft shoulder root, are not result in stress concentration in running, can effectively strengthen pump
The use intensity of axle, extends the service life of pump shaft.
Claims (7)
1. a kind of locking positioning device, including device body（1）, this device body（1）It is arranged on pump shaft（2）The shaft shoulder（3）Place,
It is characterized in that：Described pump shaft（2）The shaft shoulder（3）Place is provided with transition arc concave surface（4）, described device body（1）Bag
Include tensioning sleeve（5）And retaining ring（6）, described tensioning sleeve（5）It is set in the shaft shoulder（3）Place, described retaining ring（6）It is locked at and open
Tight set（5）Excircle on, described tensioning sleeve（5）It is internally provided with and the shaft shoulder（3）Transition arc concave surface（4）Match
Transition arc convex surface（7）.
2. a kind of locking positioning device according to claim 1 it is characterised in that：Described tensioning sleeve（5）Internal engagement
Pump shaft（2）It is provided with shoulder hole（8）, described shoulder hole（8）The depth of large pore is more than the depth of small-bore.
3. a kind of locking positioning device according to claim 2 it is characterised in that：Described tensioning sleeve（5）Outer circle
Side face includes a taper surface（9）With a cylindroid（10）, described taper surface（9）Small end correspond to inner step hole（8）Big
Hole is arranged, described cylindroid（10）Corresponding shoulder hole（8）Aperture setting, described taper surface（9）With cylindroid（10）Cross
Cross junction and be provided with locking arc groove（11）.
4. a kind of locking positioning device according to claim 3 it is characterised in that：Described locking arc groove（11）It is arranged on
Tensioning sleeve（5）Length direction medium position, described retaining ring（6）It is fastened on locking arc groove（11）Internal.
5. a kind of locking positioning device according to claim 3 it is characterised in that：Described retaining ring（6）By cylinder
The ring body of structure is constituted, described locking arc groove（11）Groove depth be more than 1/3rd retaining rings（6）Cylindrical diameter.
6. a kind of locking positioning device according to claim 1 it is characterised in that：Described tensioning sleeve（5）On vertically
Offer tensioning mouth（12）.
7. a kind of locking positioning device according to claim 1 or 2 or 3 or 4 or 5 it is characterised in that：Tensioning sleeve（5）'s
End and the shaft shoulder（3）The distance between more than 2 the shaft shoulder height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620906406.0U CN205977792U (en) | 2016-08-21 | 2016-08-21 | Locking positioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620906406.0U CN205977792U (en) | 2016-08-21 | 2016-08-21 | Locking positioning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977792U true CN205977792U (en) | 2017-02-22 |
Family
ID=58031599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620906406.0U Active CN205977792U (en) | 2016-08-21 | 2016-08-21 | Locking positioning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917136A (en) * | 2017-11-15 | 2018-04-17 | 珠海格力电器股份有限公司 | A kind of easy-to-dismount sleeve assembly |
-
2016
- 2016-08-21 CN CN201620906406.0U patent/CN205977792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917136A (en) * | 2017-11-15 | 2018-04-17 | 珠海格力电器股份有限公司 | A kind of easy-to-dismount sleeve assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180705 Address after: 311121 7 Dongfengcun, Renhe street, Yuhang District, Hangzhou, Zhejiang Patentee after: Nanfang Pump Industry Co.,Ltd. Address before: 311107 Yuhang District, Hangzhou City, Zhejiang Province, Renhe Town Patentee before: Southern Gold environment Limited by Share Ltd |
|
| TR01 | Transfer of patent right |