CN105952679B - Combined core-axle and its mandrel, end-toothed disc and locking nut - Google Patents
Combined core-axle and its mandrel, end-toothed disc and locking nut Download PDFInfo
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- CN105952679B CN105952679B CN201610287520.4A CN201610287520A CN105952679B CN 105952679 B CN105952679 B CN 105952679B CN 201610287520 A CN201610287520 A CN 201610287520A CN 105952679 B CN105952679 B CN 105952679B
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Classifications
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- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
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- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
-
- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
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- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/266—Rotors specially for elastic fluids mounting compressor rotors on shafts
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- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of segmented mandrel, end-toothed disc, locking nut, combined core-axle, compressor set, belongs to 100,000 air compressor technical group fields.The segmented mandrel includes first segment axis, second segment axis, the 3rd section of axis, the 4th section of axis, the 5th section of axis, the 6th section of axis, the 7th section of axis, the 8th section of axis and tailing axle successively from right-to-left.The end-toothed disc includes ladder shaft type body.The locking nut includes sleeve.The impeller combined core-axle includes the mandrel, the end-toothed disc, the locking nut, impeller.The compressor set includes the impeller combined core-axle.By rotating the locking nut, the spacing between locking nut right end and end-toothed disc left end can be finely tuned, so that firm performance of the impeller between locking nut and end-toothed disc further strengthens, i.e., so that the axial stability of impeller is more preferable.
Description
Technical field
The present invention relates to 100,000 air compressor technical group fields, more particularly to a kind of segmented mandrel, end-toothed disc, lock
Tight nut, combined core-axle, compressor set.
Background technology
Compressor set is to provide power " heart equipment " for whole coal chemical industry technological process, and 100,000 air compressor groups are
Refer to, compressor set produces the oxygen product of 100,000 standard cubic meters per hour.
Centrifugal compressor is a kind of blade rotary compressor, in recent years, various large-scale due to the development of chemical industry
Chemical plant, the foundation of oil plant, centrifugal compressor just become the critical machine compressed and convey various gases in Chemical Manufacture,
And occupy extremely important status.
Centrifugal compressor operation principle：Motor drives compressor main shaft and impeller high-speed rotation by gearbox, from
Under mental power function, gas is thrown in the diffuser behind active wheel.And thin area is formed among active wheel, above
Gas enters impeller among active wheel into vapour part, and since active wheel constantly rotates, gas can be continuously thrown out of
Go, so as to maintain the continuous flowing of gas in aerostatic press.Gas is because centrifugal action adds pressure, speed that can also be very big
Active wheel is left, gas gradually reduces speed through diffuser, and kinetic energy is changed into static energy, further increases pressure.If
The pressure that one running wheel obtains not enough, can by make multi-stage impeller be together in series work method come reach to outlet press
The requirement of power.Being connected in series through between level be curved logical, and return channel is realized.
The monopolization of existing 100,000 air compressor group technology almost all in foreign science-and-technology enterprise, purchase and application into
This is higher.
The content of the invention
In view of this, the present invention provides a kind of segmented mandrel, end-toothed disc, locking nut, combined core-axle, compressor set,
Combined by the mandrel, end-toothed disc, locking nut with impeller, the combined core-axle can be obtained, which can balance impeller and surpass
Turn, which can be finely adjusted coupling between mandrel and impeller so that coupling more between mandrel and impeller
It is firm, thus more suitable for practicality.
In order to reach above-mentioned first purpose, the technical solution of segmented mandrel provided by the invention is as follows：
Mandrel provided by the invention from right-to-left successively include first segment axis, second segment axis, the 3rd section of axis, the 4th section of axis,
5th section of axis, the 6th section of axis, the 7th section of axis, the 8th section of axis and tailing axle,
The diameter of 4th section of axis described in the diameter ＜ of second segment axis described in the outside diameter ＜ of the first segment axis；
The diameter of 4th section of axis described in the diameter ＜ of 5th section of axis described in the diameter ＜ of the 6th section of axis；
Using the right side of the first segment axis as starting point, is offered to the first segment axis and second segment axis vertically
One blind hole, first blind hole end in the second segment axis；
Using the second segment axis circumferential end faces as starting point, first through hole is offered along the second segment shaft diameter direction,
The first through hole intersects with first blind hole；
Using the left side for protruding from the 5th section of axis of the 4th section of axis as starting point, vertically to described 4th section
Axis offers the second blind hole；
The 8th section of axis is circumferentially with external screw thread.
Segmented mandrel provided by the invention can be also applied to the following technical measures to achieve further.
Preferably, the corner of the 4th section of axis and the 5th section of axis is in concave fillet inwardly.
Preferably, be in gradient transition between the 5th section of axis and the 6th section of axis, the 6th section of axis and the 7th section of axis
Between be in gradient transition, be also in gradient transition between the 7th section of axis and the 8th section of axis.
In order to reach above-mentioned second purpose, the technical solution of end-toothed disc provided by the invention is as follows：
End-toothed disc provided by the invention includes ladder shaft type body,
The body central offers first through hole, the first accommodating space of formation at the first through hole, and described first
The diameter of accommodating space is identical with the diameter of the 5th section of axis；
The left end of the body is used to be fixedly connected with impeller, and the right end of the body is used to be fixedly connected on offer of the present invention
Mandrel the 4th section of axis left side.
End-toothed disc provided by the invention can be also applied to the following technical measures to achieve further.
Preferably, the right end diameter of body described in the left end diameter ＜ of the body, on the right side wheel rim of the body
Dowel hole is provided in the axial direction with, the right end of the body can be fixedly connected on by positioning pin, dowel hole, the second blind hole
The 4th section of axis.
In order to reach above-mentioned 3rd purpose, the technical solution of locking nut provided by the invention is as follows：
Locking nut provided by the invention includes sleeve, and the bushing core offers the second through hole, second through hole
Inner wall be equipped with internal thread, the internal thread can between the external screw thread on mandrel provided by the invention clearance fit.
Locking nut provided by the invention can be also applied to the following technical measures to achieve further.
Preferably, several the 3rd blind holes, several described the 3rd blind holes are radially equipped with the outer wall of the sleeve
Moment of torsion is transmitted for external connection.
In order to reach above-mentioned 4th purpose, the technical solution of impeller combined core-axle provided by the invention is as follows：
Impeller combined core-axle provided by the invention includes mandrel provided by the invention, end-toothed disc provided by the invention, this hair
Locking nut, the impeller of bright offer,
The impeller set is arranged on the outside of the 6th section of axis and the 7th section of axis；
The locking nut passes through clearance fit between the internal thread, the external screw thread, with the 8th section of axis；
The left end of the end-toothed disc is fixedly connected on the impeller, and the right end of the end-toothed disc is fixedly connected on the described 4th
Section axis；
The impeller is clamped therebetween by the locking nut and the end-toothed disc.
Impeller combined core-axle provided by the invention can be also applied to the following technical measures to achieve further.
Preferably, the impeller center is equipped with third through-hole vertically, one in the 6th section of axis and the 7th section of axis
Section diameter is identical with corresponding third through-hole position diameter.
In order to reach above-mentioned 5th purpose, the technical solution of compressor set provided by the invention is as follows：
100,000 air compressor group provided by the invention includes impeller combined core-axle provided by the invention.
The impeller combined core-axle that segmented mandrel provided by the present invention, end-toothed disc, locking nut, impeller combine
In, end-toothed disc is fixedly connected on impeller by left end, and the right end of end-toothed disc is fixedly connected on the 4th section of axis, therefore, stable connection；
Since locking nut is by the internal thread that is disposed therein on the second through hole of the heart, can be arranged at it is outer on the 8th section of axis of mandrel
Thread pitch coordinates, and by rotating the locking nut, can finely tune the spacing between locking nut right end and end-toothed disc left end, from
And firm performance of the impeller between locking nut and end-toothed disc is further strengthened, i.e., so that the axial stability of impeller
More preferably.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole attached drawing, identical component is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the broken section structure diagram of mandrel provided in an embodiment of the present invention；
Fig. 2 is the partial enlarged view of I parts in Fig. 1；
Fig. 3 is the sectional view of end-toothed disc provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of locking nut provided in an embodiment of the present invention；
Fig. 5 is the sectional view along A-A of Fig. 4；
The schematic cross-sectional view of Fig. 6 impeller combined core-axles provided in an embodiment of the present invention.
Embodiment
The present invention is existing in the prior art to solve the problems, such as, there is provided a kind of segmented mandrel, end-toothed disc, locking nut, group
Mandrel, compressor set are closed, is combined by the mandrel, end-toothed disc, locking nut with impeller, the combined core-axle can be obtained, the end tooth
Disk can balance impeller excess revolutions, which can be finely adjusted coupling between mandrel and impeller so that mandrel and leaf
Connection between wheel is more firm, thus more suitable for practicality.
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Attached drawing and preferred embodiment, to according to segmented mandrel proposed by the present invention, end-toothed disc, locking nut, combined core-axle, compressor
Group, its embodiment, structure, feature and its effect, describe in detail as after.In the following description, a different " implementation
What example " or " embodiment " referred to is not necessarily the same embodiment.In addition, special characteristic, structure or spy in one or more embodiments
Point can be combined by any suitable form.
The terms "and/or", is only a kind of incidence relation for describing affiliated partner, and expression may have three kinds of passes
System, for example, A and/or B, is specifically interpreted as：A and B can be included at the same time, can be with individualism A, can also individualism
B, can possess above-mentioned three kinds of any situations.
Embodiment
Referring to attached drawing 1, segmented mandrel provided in an embodiment of the present invention includes first segment axis 1, second successively from right-to-left
Section axis 2, the 3rd section of axis 3, the 4th section of axis 4, the 5th section of axis 5, the 6th section of axis 6, the 7th section of axis 7, the 8th section of axis 8 and tailing axle, first
The diameter of the 4th section of axis 4 of diameter ＜ of the outside diameter ＜ second segments axis 2 of section axis 1；The 5th section of axis 5 of diameter ＜ of 6th section of axis 6 it is straight
The diameter of the 4th section of axis 4 of footpath ＜；Using the right side of first segment axis 1 as starting point, vertically to first segment axis 1 and second segment axis 2
The first blind hole 17 is offered, the first blind hole 17 ends in second segment axis 2；Using 2 circumferential end faces of second segment axis as starting point, along second
Section 2 diametric(al) of axis offers first through hole 18, and first through hole 18 intersects with the first blind hole 17；With protruding from for the 4th section of axis 4
The left side of 5th section of axis 5 is starting point, offers the second blind hole 19 to the 4th section of axis 4 vertically；The circumferential direction of 8th section of axis 8 is set
There is external screw thread 9.
Segmented mandrel provided in an embodiment of the present invention is designed to the form of multi-diameter shaft, enables to the 5th section of axis 5 to be used for
End-toothed disc is arranged, the 8th section of axis 8 is used to be arranged locking nut, and impeller is clamped between the end-toothed disc and locking nut, is made
Obtaining end-toothed disc can be more firm in the state between the end-toothed disc and locking nut.
Wherein, referring to attached drawing 2, the corner of the 4th section of axis 4 and the 5th section of axis 5 is in concave fillet inwardly.Due to
During use, the active force being subject between the 4th section of axis 4 and the 5th section of axis 5 is larger, and using fillet design, can reduce should
Power concentration effect, so as to avoid junction of the mandrel between the 4th section of axis 4 and the 5th section of axis from being broken, so as to extend this
The service life for the mandrel that inventive embodiments provide.
Wherein, it is in gradient transition between the 5th section of axis 5 and the 6th section of axis 6, is in slope between the 6th section of axis 6 and the 7th section of axis 7
Spend and cross, be also in gradient transition between the 7th section of axis 7 and the 8th section of axis 8.So that the 5th section of axis 5, the 6th section of axis the 6, the 7th
Transition between section axis 7, the 8th section of axis 8 is gentler, avoids mandrel from the phenomenon that diameter increases suddenly occur, so as to extend of the invention real
The service life of the mandrel of example offer is provided.
Referring to attached drawing 3, end-toothed disc provided in an embodiment of the present invention includes ladder shaft type body 10, and 10 center of body offers
First through hole, forms the first accommodating space, the diameter phase of the diameter of the first accommodating space and the 5th section of axis 5 at first through hole
Together；The left end of body 10 is used to be fixedly connected with impeller, and the right end of body 10 is used to be fixedly connected on mandrel provided by the invention
The left side of 4th section of axis 4.In the present embodiment, the right end diameter of the left end diameter ＜ bodies 10 of body 10, the right-hand wheel of body 10
Be provided in the axial direction with dowel hole 11 on edge, the right end of body 10 can by positioning pin (not shown), dowel hole 11,
Second blind hole 19 is fixedly connected on the 4th section of axis 4.Wherein, the corner between the right end of the left end of body 10 and body 10 is also in
Round-corner transition, due in use, the active force that the corner between the left end of body 10 and the right end of body 10 is subject to
It is larger, using fillet design, stress concentration effect can be reduced, so as to avoid connection of the body 10 between its left end and right end
Place is broken, so as to extend the service life of end-toothed disc provided in an embodiment of the present invention.
Referring to attached drawing 4 and attached drawing 5, locking nut provided in an embodiment of the present invention includes sleeve 12, and 12 center of sleeve opens up
There is the second through hole, the inner wall of the second through hole is equipped with internal thread, and internal thread can be with the external screw thread 9 on mandrel provided by the invention
Between clearance fit.In this case, can be between the locking nut and the end-toothed disc by rotating the locking nut
Spacing is finely adjusted, so that the impeller being clamped at therebetween can be consolidated more.
Wherein, several the 3rd blind holes 13 are radially equipped with the outer wall of sleeve 12, several the 3rd blind holes 13 are used for pair
Moment of torsion is transmitted in outer connection, and at this time, when needing to rotate the locking nut, force application means and the contact jaw of the locking nut can be worn
Enter into several the 3rd blind holes 13, so as to apply rotating force so that the locking nut relative to the 8th section of axis 8 it
Between rotate against and realize fine setting.
Referring to attached drawing 6, impeller combined core-axle provided in an embodiment of the present invention includes mandrel provided by the invention, the present invention carries
The end-toothed disc of confession, locking nut provided by the invention, impeller, impeller set are arranged on the outside of the 6th section of axis 6 and the 7th section of axis 7；Lock
Tight nut passes through clearance fit between internal thread, external screw thread 9, with the 8th section of axis 8；The left end of end-toothed disc is fixedly connected on impeller
14, the right end of end-toothed disc is fixedly connected on the 4th section of axis 4；Be locked nut and the end-toothed disc of impeller 14 clamps therebetween.
The impeller combined core-axle combined by mandrel provided in an embodiment of the present invention, end-toothed disc, locking nut, impeller
In, end-toothed disc is fixedly connected on impeller 14 by left end, and the right end of end-toothed disc is fixedly connected on the 4th section of axis 4, and therefore, connection is steady
Gu；, can be with being arranged on the 8th section of axis 8 of mandrel since locking nut is by the internal thread being disposed therein on the second through hole of the heart
9 clearance fit of external screw thread, by rotating the locking nut, between can finely tuning between locking nut right end and end-toothed disc left end
Away from so that firm performance of the impeller 14 between locking nut and end-toothed disc further strengthens, i.e., so that impeller 14
Axial stability is more preferable.
Wherein, 14 center of impeller is equipped with third through-hole vertically, one section of diameter in the 6th section of axis 6 and the 7th section of axis 7 with
Corresponding third through-hole position diameter is identical.In the present embodiment, which is a stepped hole, which, which forms second, holds
15 and the 3rd accommodating space 16 between emptying, wherein, the diameter of the second accommodating spaces of diameter ＜ 15 of the 3rd accommodating space 16, the 7th
The diameter of section axis 7 is identical with the diameter of the 3rd accommodating space 16.In this case, since the mandrel is in the radial direction of impeller 14
There is no activity space, therefore, it is possible to increase the radial stability of the impeller.
Compressor set provided in an embodiment of the present invention includes impeller combined core-axle provided by the invention.Due to 100,000 space division
Compressor set includes the impeller combined core-axle, thereby it is ensured that the application stability for the impeller applied in the compressor set.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make these embodiments other change and modification.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (10)
1. a kind of segmented mandrel, it is characterised in that include first segment axis, second segment axis, the 3rd section of axis, the successively from right-to-left
Four sections of axis, the 5th section of axis, the 6th section of axis, the 7th section of axis, the 8th section of axis and tailing axle,
The diameter of 4th section of axis described in the diameter ＜ of second segment axis described in the outside diameter ＜ of the first segment axis；
The diameter of 4th section of axis described in the diameter ＜ of 5th section of axis described in the diameter ＜ of the 6th section of axis；
Using the right side of the first segment axis as starting point, it is blind first to be offered to the first segment axis and second segment axis vertically
Hole, first blind hole end in the second segment axis；
Using the second segment axis circumferential end faces as starting point, first through hole is offered along the second segment shaft diameter direction, it is described
First through hole intersects with first blind hole；
Using the left side for protruding from the 5th section of axis of the 4th section of axis as starting point, opened vertically to the 4th section of axis
Equipped with the second blind hole；
The 8th section of axis is circumferentially with external screw thread.
2. segmented mandrel according to claim 1, it is characterised in that the 4th section of axis turns with the 5th section of axis
In concave fillet inwardly at angle.
3. segmented mandrel according to claim 1, it is characterised in that be in slope between the 5th section of axis and the 6th section of axis
Spend and cross, be in gradient transition between the 6th section of axis and the 7th section of axis, be also in slope between the 7th section of axis and the 8th section of axis
Spend and cross.
A kind of 4. end-toothed disc, it is characterised in that including ladder shaft type body,
The body central offers first through hole, and the first accommodating space is formed at the first through hole, and described first is accommodating
The diameter in space is identical with the diameter of the 5th section of axis；
The left end of the body is used to be fixedly connected with impeller, and the right end of the body is used to be fixedly connected in claims 1 to 3
The left side of 4th section of axis of any mandrel.
5. end-toothed disc according to claim 4, it is characterised in that the right end of body described in the left end diameter ＜ of the body
Diameter, is provided in the axial direction with dowel hole on the right side wheel rim of the body, and the right end of the body can be by positioning pin, fixed
Position pin hole, the second blind hole are fixedly connected on the 4th section of axis.
6. a kind of locking nut, it is characterised in that including sleeve, the bushing core offers the second through hole, and described second is logical
The inner wall in hole is equipped with internal thread, the internal thread can with the external screw thread in claims 1 to 3 on any mandrel it
Between clearance fit.
7. locking nut according to claim 6, it is characterised in that be radially equipped with several on the outer wall of the sleeve
3rd blind hole, several described the 3rd blind holes are used for external connection and transmit moment of torsion.
8. a kind of impeller combined core-axle, it is characterised in that including any mandrel, claim 4 in claims 1 to 3
Or the end-toothed disc described in 5, the locking nut described in claim 6 or 7, impeller,
The impeller set is arranged on the outside of the 6th section of axis and the 7th section of axis；
The locking nut passes through clearance fit between the internal thread, the external screw thread, with the 8th section of axis；
The left end of the end-toothed disc is fixedly connected on the impeller, and the right end of the end-toothed disc is fixedly connected on described 4th section
Axis；
The impeller is clamped therebetween by the locking nut and the end-toothed disc.
9. impeller combined core-axle according to claim 8, it is characterised in that the impeller center is equipped with threeway vertically
Hole, one section of diameter in the 6th section of axis and the 7th section of axis are identical with corresponding third through-hole position diameter.
10. a kind of compressor set, it is characterised in that including the impeller combined core-axle described in claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287520.4A CN105952679B (en) | 2016-04-29 | 2016-04-29 | Combined core-axle and its mandrel, end-toothed disc and locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287520.4A CN105952679B (en) | 2016-04-29 | 2016-04-29 | Combined core-axle and its mandrel, end-toothed disc and locking nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105952679A CN105952679A (en) | 2016-09-21 |
| CN105952679B true CN105952679B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610287520.4A Active CN105952679B (en) | 2016-04-29 | 2016-04-29 | Combined core-axle and its mandrel, end-toothed disc and locking nut |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545520A (en) * | 2016-10-31 | 2017-03-29 | 沈阳鼓风机集团股份有限公司 | Compressor impeller and pinion shaft attachment structure and its processing method |
| CN109774215A (en) * | 2019-02-12 | 2019-05-21 | 甘肃农业大学 | A kind of combined type double helical tooth herbage conditioner roll |
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|---|---|---|---|---|
| CN202789658U (en) * | 2012-08-23 | 2013-03-13 | 安岳县金龙机械制造有限公司 | Water pump impeller connecting shaft |
| CN203130622U (en) * | 2013-04-02 | 2013-08-14 | 沈阳鼓风机集团安装检修配件有限公司 | External cooling isothermal air separation compressor |
| CN104791287A (en) * | 2015-04-20 | 2015-07-22 | 瓦房店爱国轴承研究院有限公司 | Modes for improving main shaft of blower transmission set |
| CN205136107U (en) * | 2015-11-10 | 2016-04-06 | 温州捷高科技有限公司 | Novel water pump motor axle |
-
2016
- 2016-04-29 CN CN201610287520.4A patent/CN105952679B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202789658U (en) * | 2012-08-23 | 2013-03-13 | 安岳县金龙机械制造有限公司 | Water pump impeller connecting shaft |
| CN203130622U (en) * | 2013-04-02 | 2013-08-14 | 沈阳鼓风机集团安装检修配件有限公司 | External cooling isothermal air separation compressor |
| CN104791287A (en) * | 2015-04-20 | 2015-07-22 | 瓦房店爱国轴承研究院有限公司 | Modes for improving main shaft of blower transmission set |
| CN205136107U (en) * | 2015-11-10 | 2016-04-06 | 温州捷高科技有限公司 | Novel water pump motor axle |
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| Publication number | Publication date |
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| CN105952679A (en) | 2016-09-21 |
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