CN206159098U - Spindle nose tighten nut structure - Google Patents
Spindle nose tighten nut structure Download PDFInfo
- Publication number
- CN206159098U CN206159098U CN201621188476.3U CN201621188476U CN206159098U CN 206159098 U CN206159098 U CN 206159098U CN 201621188476 U CN201621188476 U CN 201621188476U CN 206159098 U CN206159098 U CN 206159098U
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- China
- Prior art keywords
- gland
- pump shaft
- head nut
- axis head
- arc groove
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Abstract
The utility model discloses a spindle nose tighten nut structure, including pump shaft, impeller and gland, impeller and gland set up on the pump shaft respectively to the gland is connected cooperation department with the pump shaft and is the tight fit, the outside circumference of gland on be provided with tightening structure, the gland on decide the moment of torsion structure with crisscross being provided with of tightening structure. This spindle nose tighten nut structure is through setting up tightening structure and deciding the moment of torsion structure for the spindle nose nut is at the in -process of screwing up, no longer need be with the help of impeller or motor fan cover, nor need remove the complete machine, just directly can realize screwing up of spindle nose nut, and convenient operation is swift.
Description
Technical field
The utility model is related to pump technical field, more particularly, to a kind of axis head nut screwing structure.
Background technology
The axis head nut of existing pump will be using motor fan housing end or impeller braking roll, so in rundown process when tightening
The destruction of the parts such as fan housing, impeller can be caused, affects the performance of pump, and existing structure to need in spindle nose rundown process
Whole pump is moved, the amount of labour is big, operation inconvenience.
Chinese patent literature（The day for announcing：On January 8th, 2014, notification number： CN203381440U）Disclose a kind of spindle nose
Nut assembling structure, including the axis head nut coordinated on the spindle nose of axis body and with spindle nose external screw thread, in axis head nut
Side is provided with stop washer, and in the side of stop washer inside and outside bearing is provided with, and the axis head nut is provided with through whole spindle nose
The vallecular cavity of nut and the bearing pin being inserted in the vallecular cavity, are arranged with compression spring on bearing pin, the compression spring is in the vallecular cavity
Interior, described compression spring one end is resisted against on the flange of the bearing pin；On the circumference of the corresponding bearing pin of the stop washer
Multiple holes are evenly arranged with, the diameter in the hole is adapted with pin diameter.
Above-mentioned technical proposal discloses a kind of axis head nut assembling structure applied on trailer, and the structure is to solve
Existing hub bearing gap not accurately problem.The technical scheme can not be applied to pump shaft head nut and install.
Utility model content
The purpose of this utility model is that the axis head nut in order to solve existing pump tightens needs by impeller or motor wind
Cover, easily causes the damage of impeller or motor fan housing, and needs to move whole pump, operation inconvenience, high labor intensive when installing
The problems such as, and one kind is provided and is directly tightened by the i.e. achievable pump shaft head nut of gland, axis head nut easy to operate is twisted
Locking structure.
The utility model realizes that the technical scheme that its technical purpose is adopted is：A kind of axis head nut screwing structure, including
Pump shaft, impeller and gland, described impeller and gland is separately positioned on pump shaft, and it is tight that gland is connected at cooperation with pump shaft
Coordinate, in the exterior periphery of described gland screwing structure is provided with, it is fixed to be staggeredly equipped with screwing structure on described gland
Torque structure.The axis head nut screwing structure, by being configured to gland structure, screwing structure is provided with gland and is determined
Torque structure, when needing to tighten axis head nut, when the axis head nut of the less pump shaft of diameter is tightened, only
Need that just stop can be carried out to pump shaft by screwing structure, realize the installation of axis head nut, and for the pump shaft being relatively large in diameter
Axis head nut tighten, because the dynamics that the stop of pump shaft needs is larger, gland is damaged to prevent dynamics excessive, in profit
While using screwing structure, using torque structure is determined, when moment of torsion reaches a certain size, determining torque structure loses can operation instrument
Power, disengages from gland, has both realized the needs of tightening of axis head nut, also effectively prevent damage of the operation instrument to gland
It is bad.The axis head nut screwing structure, by arranging screwing structure and determining torque structure so that axis head nut is in the process tightened
In, it is no longer necessary to by impeller or motor fan housing, nor need to move whole machine, directly can just realize spindle nose
Tightening for nut, it is convenient to operation.
Preferably, described screwing structure is symmetrically arranged two planar structure, the pressure that described screwing structure is located
The medial surface of lid is correspondingly arranged as inner plane structure, and screwing structure is provided with pump shaft planar structure on described pump shaft,
And inner plane structure is arranged with pump shaft planar structure detent fit.Screwing structure adopts symmetrically arranged two planar structures,
Such structure is correspondingly arranged with the pump shaft planar structure on pump shaft, and both inner plane structure and pump shaft planar structure coordinate
Realize that internal phase mutually stop is arranged, such structure, when needing to tighten axis head nut, can easily realize spiral shell
Female tightens.
Preferably, described torque structure of determining includes the arc groove being arranged on gland and the moment of torsion being arranged on inside arc groove
Spheroid.Determine the preferred arc groove of torque structure and moment of torsion spheroid, when the power that stop clamping tool is applied on moment of torsion spheroid is excessive, turn round
Square spheroid will slide to the end of arc groove so that the power dispersion on stop clamping tool, so as to realize the protection to gland.
Preferably, described arc groove is along the axially arranged of gland, and the depth of arc groove from it is middle to two ends depth by
Shallow to deep setting, the diameter of moment of torsion spheroid of the depth at most shallow place more than or equal to 2/3rds in the middle of arc groove.The structure of arc groove is
In order to realize when moment of torsion is excessive to the protective effect of gland, when the torque on stop clamping tool is excessive, arc groove is arranged on
Internal moment of torsion spheroid will be skidded off at two two ends under force, to protect gland.
Preferably, gland is integrated die cast component.Gland adopts integrated die-casting component, and such structure is easily manufactured,
And gland can disposably produce arc slot structure, both ensure that the use intensity of gland, disclosure satisfy that axis head nut is twisted again
Tight needs.
The beneficial effects of the utility model are：The axis head nut screwing structure, by arranging screwing structure and determining moment of torsion knot
Structure so that axis head nut is during tightening, it is no longer necessary to by impeller or motor fan housing, nor need to whole machine
Move, directly can just realize tightening for axis head nut, it is convenient to operation.
Description of the drawings
Fig. 1 is a kind of structural representation of the utility model axis head nut screwing structure；
Fig. 2 is the A-A sectional views in Fig. 1；
Fig. 3 is a kind of structural representation of gland in the utility model；
Fig. 4 is the left view of gland in Fig. 3；
Fig. 5 is the top view of gland in Fig. 3；
In figure：1st, pump shaft, 2, impeller, 3, gland, 4, screwing structure, 5, determine torque structure, 6, pump shaft planar structure, 7, arc
Groove, 8, moment of torsion spheroid, 9, inner plane structure.
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 the embodiment shown in Fig. 1, Fig. 2, Fig. 3, a kind of axis head nut screwing structure, including pump shaft 1, impeller 2 and pressure
Lid 3, gland 3 is integrated die cast component.Impeller 2 and gland 3 are separately positioned on pump shaft 1, and gland 3 is connected with pump shaft 1 and matches somebody with somebody
It is tight fit at conjunction, screwing structure 4 is provided with the exterior periphery of gland 3, screwing structure 4 is symmetrically arranged two planar junction
Structure, the medial surface of the gland 3 that screwing structure 4 is located is correspondingly arranged as inner plane structure 9, is set corresponding to screwing structure 4 on pump shaft 1
Pump shaft planar structure 6 is equipped with, and inner plane structure 9 is arranged with the detent fit of pump shaft planar structure 6.On gland 3 with tighten knot
Structure 4 is staggeredly equipped with determines torque structure 5.Determining torque structure 5 includes the arc groove 7 being arranged on gland 3 and is arranged on inside arc groove 7
Moment of torsion spheroid 8（See Fig. 4）.Arc groove 7 is axially arranged along gland 3, and the depth of arc groove 7 from centre to two ends depth by shallow
To deep setting（See Fig. 5）, the diameter of moment of torsion spheroid 8 of the depth at most shallow place more than or equal to 2/3rds in the middle of arc groove 7.
The pump end axis head nut screwing structure, arranges brand-new design, by die-casting process method, in gland to gland structure
On the screwing structure 4 of two symmetrical plane structures is set out, the gland design by original hollow cylindrical is to be with inside and outside
The screwing structure form of two planar structures, is also equipped with two pump shaft planar structures 6 on corresponding pump shaft, on gland knot is tightened
Structure 4 is engaged with pump shaft planar structure 6, phase mutually stop, and while on gland design a pair symmetrically arranged arc grooves 7, in axle
Moment of torsion spheroid 8 is set inside arc groove 7 when head nut is tightened, it is stop clamping tool is corresponding with the arc groove on gland and compress torsion
Square spheroid 8, to pump shaft stop is carried out, less certainly for diameter such that it is able to easily realize tightening axis head nut
Pump shaft head nut tighten, can not use and determine torque structure, and be only capable of achieving to axis head nut by screwing structure
Tighten.The axis head nut screwing structure, will not have any impact to impeller or motor fan housing, pass through before effectively prevent
Damage when impeller or motor fan housing are fixed to impeller and fan housing；Efficiency of assembling can be improved；Automated assembly can be realized.
Claims (5)
1. a kind of axis head nut screwing structure, including pump shaft（1）, impeller（2）And gland（3）, it is characterised in that：Described impeller
（2）And gland（3）It is separately positioned on pump shaft（1）On, and gland（3）With pump shaft（1）It is tight fit at connection cooperation, it is described
Gland（3）Exterior periphery on be provided with screwing structure（4）, described gland（3）Upper and screwing structure（4）It is fixed to be staggeredly equipped with
Torque structure（5）.
2. a kind of axis head nut screwing structure according to claim 1, it is characterised in that：Described screwing structure（4）For
Symmetrically arranged two planar structure, described screwing structure（4）The gland at place（3）Medial surface be correspondingly arranged for inner plane knot
Structure（9）, described pump shaft（1）On corresponding to screwing structure（4）It is provided with pump shaft planar structure（6）, and inner plane structure（9）
With pump shaft planar structure（6）Detent fit is arranged.
3. a kind of axis head nut screwing structure according to claim 1, it is characterised in that：Described determines torque structure（5）
Including being arranged on gland（3）On arc groove（7）Be arranged on arc groove（7）Internal moment of torsion spheroid（8）.
4. a kind of axis head nut screwing structure according to claim 3, it is characterised in that：Described arc groove（7）Along gland
（3）Axially arranged, and arc groove（7）Depth from centre arrange from shallow to deep to two ends depth, arc groove（7）Middle most shallow place
Depth more than or equal to 2/3rds moment of torsion spheroid（8）Diameter.
5. a kind of axis head nut screwing structure according to claim 1 or 2 or 3 or 4, it is characterised in that：Gland（3）For one
Body die cast component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621188476.3U CN206159098U (en) | 2016-11-04 | 2016-11-04 | Spindle nose tighten nut structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621188476.3U CN206159098U (en) | 2016-11-04 | 2016-11-04 | Spindle nose tighten nut structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159098U true CN206159098U (en) | 2017-05-10 |
Family
ID=58657652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621188476.3U Active CN206159098U (en) | 2016-11-04 | 2016-11-04 | Spindle nose tighten nut structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159098U (en) |
-
2016
- 2016-11-04 CN CN201621188476.3U patent/CN206159098U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180614 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 |