CN209370152U - A kind of locking device for centrifugal compressor impeller - Google Patents
A kind of locking device for centrifugal compressor impeller Download PDFInfo
- Publication number
- CN209370152U CN209370152U CN201822073988.0U CN201822073988U CN209370152U CN 209370152 U CN209370152 U CN 209370152U CN 201822073988 U CN201822073988 U CN 201822073988U CN 209370152 U CN209370152 U CN 209370152U
- Authority
- CN
- China
- Prior art keywords
- locking
- impeller
- locking nut
- transmission shaft
- axle sleeve
- 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
The utility model discloses a kind of locking devices for centrifugal compressor impeller, including impeller, transmission shaft, locking axle sleeve and locking nut, the circular shaft shoulder is fixedly installed on the transmission shaft, and peripherally disposed there is the first screw thread on the surface of one end of transmission shaft, the locking nut is arranged in transmission shaft one end, and close fit between locking nut and the first screw thread, the impeller is set on transmission shaft, and impeller is arranged between the shaft shoulder and locking nut, one end face of the locking axle sleeve is fixedly connected with an end face of impeller, the internal diameter of the locking axle sleeve is greater than the outer diameter of locking nut.Locking nut, which is adjusted, in the precession that the utility model passes through clamping screw inside the locking axle sleeve for being provided with and being fixed on one end face of impeller makes locking nut reach expected coupling mechanism force, locking nut coupling mechanism force is adjusted without adding outside plant, keeps the simpler working service of the structure of locking device more convenient.
Description
Technical field
The utility model relates to Compressor Technology field, specially a kind of locking for centrifugal compressor impeller is filled
It sets.
Background technique
Currently, Centrufugal compressor impeller mostly uses doubly linked structure, and for using pretension bolt to be fastenedly connected
How structure to guarantee to reach expected coupling mechanism force in technique, and become the problem of assembly technology, traditional process is to exert oneself
Square spanner tightens locking nut, and this method operation is laborious, and the size of pretightning force is not easy to hold, and be easy to cause locking screw
Cooperation tension between female and impeller shaft was pine.
In order to solve the above-mentioned technical problem, Chinese patent notification number is the prior art of " CN201377466 " at 2010 1
Month disclose within 6th a kind of locking device for centrifugal compressor impeller, technical solution are as follows: the impeller include impeller shaft with
And be threadedly connected to the locking nut in impeller shaft, particularly, locking device includes: piston, one end be connected through a screw thread to
Impeller shaft is simultaneously opposite with locking nut；Driving instrument is connect with piston, and driving piston is mobile to stretch or discharge impeller shaft, with
And driving lever, cooperate with locking nut, for tightening locking nut when stretching impeller shaft.In actual use, the patent
Although can relatively accurately reach expected coupling mechanism force, it, which is remained, needs to install additional driving instrument and makes structure is complicated to make
With the problem that maintenance is inconvenient.
Utility model content
The purpose of this utility model is to provide a kind of locking devices for centrifugal compressor impeller, it is intended to improve existing
There is compressor locking device to need to install additional the problem of the driving fear working service inconvenience that makes that structure is complicated.
The utility model is realized in this way: a kind of locking device for centrifugal compressor impeller, including impeller, biography
Moving axis, locking axle sleeve and locking nut are fixedly installed the circular shaft shoulder, and the surface of one end of transmission shaft on the transmission shaft
Peripherally disposed have the first screw thread, the locking nut setting in transmission shaft one end, and locking nut and the first screw thread it
Between close fit, the impeller is set on transmission shaft, and impeller is arranged between the shaft shoulder and locking nut, the locking axle sleeve
An end face be fixedly connected with an end face of impeller.
Further, the internal diameter of the locking axle sleeve is greater than the outer diameter of locking nut, and along circle on the inner wall of locking axle sleeve
Circumferential direction offers the second screw thread, and the locking axle sleeve is internally provided with the clamping screw matched with the second screw thread, and locks
Circular hole is laterally offered at the side end face center of bolt, and on the periphery between the side end face outer rim and circular hole of clamping screw
It is even to be provided with several protruding blocks.
Further, the impeller offers circular spacer groove, and gasket at the center of locking nut one side
Gasket is installed inside slot.
Further, the locking nut is matched with protruding block far from along the circumferential direction offering on one end face of impeller
Groove.
Further, the outer diameter of the clamping screw is greater than the outer diameter of locking nut, and the half of clamping screw inner circular aperture
Diameter is greater than the section radius of transmission shaft.
Further, the outer diameter of the spacer groove is greater than the outer diameter of gasket, and the outer diameter of spacer groove is less than locking axle sleeve
Internal diameter.
Compared with prior art, the utility model has the beneficial effects that utility model has design reasonable and easy to operate
The characteristics of, the utility model passes through the precession of clamping screw inside the locking axle sleeve for being provided with and being fixed on one end face of impeller to lock
Tight nut, which is adjusted, makes locking nut reach expected coupling mechanism force, and locking nut locking is adjusted without adding outside plant
Power keeps the simpler working service of the structure of locking device more convenient.
(1), the utility model is being driven by installing impeller between locking nut and the shaft shoulder by shaft shoulder limitation impeller
Position on axis, while being threadedly engaged and impeller being pressed on the shaft shoulder convenient for limiting leaf by locking nut and transmission shaft first
Impeller is fixed in the specific location of wheel, while locking nut 4 is adjusted in the structure by being arranged inside locking axle sleeve 3
Keep locking device structure simpler without carrying out precession adjusting to locking nut 4 using external equipment, is easy to use and safeguards.
(2), the utility model by by the precession length inside clamping screw precession locking axle sleeve to locking nut into
Row is adjusted, while clamping screw inner circular aperture internal diameter is greater than the outer diameter of transmission shaft and makes transmission shaft not and influence clamping screw to locking screw
Female adjusting, and then the position by adjusting the clamping screw being screwed on inside locking axle sleeve is made by the cooperation of protruding block and groove
Locking nut is screwed accordingly, and the pretightning force between locking nut and impeller is made to reach expected, while not being had to convenient for operation
It borrows external equipment and reduces cost.
(3), the utility model is at the center of locking nut one side by offering circular spacer groove in impeller,
And gasket is installed inside spacer groove, installation gasket prevents locking nut from causing to wear while passing through gasket for pretightning force to impeller
It is dispersed on impeller convenient for the uniform and stable of impeller stress, the outer diameter of spacer groove is greater than the outer diameter of gasket, and the outer diameter of spacer groove
Less than the internal diameter of locking axle sleeve, and then the inside of spacer groove is mounted on convenient for gasket and can be convenient for carrying out by clamping screw
Position of the adjusting lock nut on transmission shaft is that impeller is more stable.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the cross-sectional view of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the structural schematic diagram of A in the utility model；
Fig. 4 is the structural schematic diagram of the B of the utility model；
In figure: 1, impeller；11, spacer groove；2, transmission shaft；21, the shaft shoulder；22, the second screw thread；3, locking axle sleeve；31, it locks
Bolt；311, circular hole；312, protruding block；32, the second screw thread；4, locking nut；41, groove；5, gasket.
Specific embodiment
It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this
Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment is fallen within the protection scope of the utility model.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit the range of claimed invention, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
It please refers to shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of locking device for centrifugal compressor impeller, including leaf
Wheel 1, transmission shaft 2, locking axle sleeve 3 and locking nut 4, are fixedly installed the circular shaft shoulder 21 on transmission shaft 2, and transmission shaft 2
The surface of one end is peripherally disposed the first screw thread 22, the setting of locking nut 4 in 2 one end of transmission shaft, and locking nut 4 with
Close fit between first screw thread 22, impeller 1 are set on transmission shaft 2, and the setting of impeller 1 the shaft shoulder 21 and locking nut 4 it
Between, an end face of locking axle sleeve 3 is fixedly connected with an end face of impeller 1, and then by pacifying between locking nut 4 and the shaft shoulder 21
It fills impeller 1 and position of the impeller 1 on transmission shaft 2 is limited by the shaft shoulder 21, while passing through on locking nut 4 and transmission shaft 2 first
Impeller 1 is pressed on the shaft shoulder 21 and impeller 1 is fixed convenient for limiting the specific location of impeller 1 by the cooperation of screw thread 22, leads to simultaneously
It crosses the structure being arranged inside locking axle sleeve 3 and locking nut 4 is adjusted and do not have to revolve locking nut 4 using external equipment
Keep locking device structure simpler into adjusting, is easy to use and safeguards.
The internal diameter of locking axle sleeve 3 is greater than the outer diameter of locking nut 4, and along the circumferential direction opens up on the inner wall of locking axle sleeve 3
There is the second screw thread 32, locking axle sleeve 3 is internally provided with the clamping screw 31 matched with the second screw thread 32, and clamping screw 31
Circular hole 311 is laterally offered at the center of side end face, and on the periphery between the side end face outer rim and circular hole 311 of clamping screw 31
It is evenly arranged with several protruding blocks 312, locking nut 4 on 1 one end face of impeller far from along the circumferential direction offering and protruding block 312
The groove 41 to match, the outer diameter of clamping screw 31 are greater than the outer diameter of locking nut 4, and 31 inner circular aperture 311 of clamping screw
Radius is greater than the section radius of transmission shaft 2, convenient for passing through the precession length inside 31 precession locking axle sleeve 3 of clamping screw to locking
Nut 4 is adjusted, while 31 inner circular aperture 311 of clamping screw does not influence adjusting of the clamping screw 31 to locking nut 4, in turn
Position by adjusting the clamping screw 31 being screwed on inside locking axle sleeve 3 makes to lock by the cooperation of protruding block 312 and groove 41
Nut 4 is screwed accordingly, and the pretightning force between locking nut 4 and impeller 1 is made to reach expected, while not having to borrow convenient for operation
Cost is reduced with external equipment.
Impeller 1 offers circular spacer groove 11 at the center of 4 one side of locking nut, and pacifies inside spacer groove 11
Equipped with gasket 5, installing gasket 5 prevents locking nut 4 from causing to wear to impeller 1 while pretightning force is dispersed in leaf by gasket 5
Convenient for the uniform and stable of 1 stress of impeller on wheel 1, the outer diameter of spacer groove 11 is greater than the outer diameter of gasket 5, and the outer diameter of spacer groove 11 is small
In the internal diameter of locking axle sleeve 3, and then the inside of spacer groove 11 is mounted on convenient for gasket 5 and can be convenient for through clamping screw 31
It is that impeller 1 is more stable that position of the locking nut 4 on transmission shaft 2, which is adjusted,.
The device obtained by above-mentioned design has been able to satisfy a kind of structure substantially and has been simply used for centrifugal compressor impeller
The use of locking device, but in line with the objective for further improving its function, designer has carried out further improvement to the device.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of locking device for centrifugal compressor impeller, including impeller (1), transmission shaft (2), locking axle sleeve (3) and
Locking nut (4), it is characterised in that: it is fixedly installed the circular shaft shoulder (21) on the transmission shaft (2), and transmission shaft (2)
The surface of one end is peripherally disposed to be had the first screw thread (22), and the locking nut (4) is arranged in transmission shaft (2) one end, and
Close fit between locking nut (4) and the first screw thread (22), the impeller (1) is set on transmission shaft (2), and impeller (1)
It is arranged between the shaft shoulder (21) and locking nut (4), an end face of the locking axle sleeve (3) and an end face of impeller (1) are fixed
Connection.
2. a kind of locking device for centrifugal compressor impeller according to claim 1, which is characterized in that the lock
The internal diameter of mandrel set (3) is greater than the outer diameter of locking nut (4), and the is along the circumferential direction offered on the inner wall of locking axle sleeve (3)
Two screw threads (32), the locking axle sleeve (3) is internally provided with the clamping screw (31) matched with the second screw thread (32), and locks
It is laterally offered at the side end face center of bolt (31) circular hole (311), and the side end face outer rim and circular hole of clamping screw (31)
(311) several protruding blocks (312) are evenly arranged on the periphery between.
3. a kind of locking device for centrifugal compressor impeller according to claim 2, which is characterized in that the leaf
Wheel (1) offers circular spacer groove (11) at the center of locking nut (4) one side, and installation inside spacer groove (11)
There are gasket (5).
4. a kind of locking device for centrifugal compressor impeller according to claim 3, which is characterized in that the lock
Tight nut (4) is far from the groove (41) along the circumferential direction offered on (1) one end face of impeller and protruding block (312) match.
5. a kind of locking device for centrifugal compressor impeller according to claim 4, which is characterized in that the lock
The outer diameter of tight bolt (31) is greater than the outer diameter of locking nut (4), and the radius of clamping screw (31) inner circular aperture (311) is greater than biography
The section radius of moving axis (2).
6. a kind of locking device for centrifugal compressor impeller according to claim 5, which is characterized in that the pad
The outer diameter of film trap (11) is greater than the outer diameter of gasket (5), and the outer diameter of spacer groove (11) is less than the internal diameter of locking axle sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822073988.0U CN209370152U (en) | 2018-12-11 | 2018-12-11 | A kind of locking device for centrifugal compressor impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822073988.0U CN209370152U (en) | 2018-12-11 | 2018-12-11 | A kind of locking device for centrifugal compressor impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370152U true CN209370152U (en) | 2019-09-10 |
Family
ID=67832088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822073988.0U Expired - Fee Related CN209370152U (en) | 2018-12-11 | 2018-12-11 | A kind of locking device for centrifugal compressor impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209370152U (en) |
-
2018
- 2018-12-11 CN CN201822073988.0U patent/CN209370152U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20201211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |