CN106870246B - A kind of impeller shade assembly assembly method - Google Patents
A kind of impeller shade assembly assembly method Download PDFInfo
- Publication number
- CN106870246B CN106870246B CN201710007549.7A CN201710007549A CN106870246B CN 106870246 B CN106870246 B CN 106870246B CN 201710007549 A CN201710007549 A CN 201710007549A CN 106870246 B CN106870246 B CN 106870246B
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- Prior art keywords
- cover
- impeller
- steel sleeve
- interior insulation
- insulation bushing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/02—Casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of impeller shade assembly assembly methods, belong to hydraulic jet propulsion system processing method field.The described method includes: the first end of the impeller cover of tubular is arranged in support positioning plates；At least two Positioning arc plates are arranged in support positioning plates, and the inner wall of at least two Positioning arc plates fitting impeller cover is placed；By cover interior insulation bushing along the inner wall indentation impeller cover of impeller cover, until the first end of cover interior insulation bushing connects with Positioning arc plate；By steel sleeve in cover along the inner wall indentation cover interior insulation bushing of cover interior insulation bushing, until the first end of steel sleeve connects with Positioning arc plate in covering, pressing plate is arranged in the second end and cover of cover interior insulation bushing in the second end of steel sleeve, pressing plate is connected with impeller cover by the second fastener.The method improves the success rate of assembly, only finely tunes cover interior insulation bushing by the later period and covers the position of interior steel sleeve, reduces the workload of assembly, shorten assembly period, improve efficiency.
Description
Technical field
The present invention relates to hydraulic jet propulsion system processing method field, in particular to a kind of impeller shade assembly assembly method.
Background technique
Hydraulic jet propulsion system is a kind of power device of the marine equipments such as ship, mainly by by water from stern height
Speed sprays to generate injection water, the propulsion of ship is realized using the reaction force of injection water, and can spray by changing
The injection direction of water flow realizes the positive boat of ship, the operation such as boat, traversing, oblique shifting or pivot stud.
Impeller shade assembly is one of primary clustering of hydraulic jet propulsion system, impeller shade assembly include impeller cover, in cover absolutely
Steel sleeve in edge bushing and cover, cover interior insulation bushing are mounted in impeller cover, are covered interior steel sleeve and are mounted on cover interior insulation bushing
Interior, covering the gap between interior steel sleeve and impeller is one of the principal element for influencing hydraulic jet propulsion system efficiency.In impeller chimney group
When part assembles, cover interior insulation bushing is first cut, then cover interior insulation bushing is installed in impeller cover, then the cover that will have been polished
Interior steel sleeve is directly pressed into cover interior insulation bushing by force.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
Since cover interior insulation bushing and impeller cover are loose fit, cover interior steel sleeve and match with cover interior insulation bushing for interference
It closes, this makes the assembly difficulty of impeller shade assembly very big.Often there is cover interior insulation lining in existing impeller shade assembly assembly method
Set, which deforms serious, distortion dislocation, leans out impeller cover or covers interior steel sleeve, enters difficult problem, and impeller shade assembly is caused to assemble
Success rate is low and low efficiency.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of impeller shade assembly assembly methods.It is described
Technical solution is as follows:
The present invention provides a kind of impeller shade assembly assembly methods, are suitable for assembly impeller shade assembly, the impeller chimney group
Part assembly method includes:
The first end of the impeller cover of tubular is arranged in support positioning plates, by the first fastener by the impeller chimney
Shell is fixed in the support positioning plates.
At least two Positioning arc plates are arranged in the support positioning plates, and at least two Positioning arc plate is bonded institute
State impeller cover inner wall place, and at least two Positioning arc plate centered on the center line of the impeller cover circumferentially
Direction uniform intervals arrangement.
Inner wall by cover interior insulation bushing along the impeller cover is pressed into the impeller cover, until the cover interior insulation
The first end of bushing connects with the Positioning arc plate.
Inner wall by steel sleeve in cover along the cover interior insulation bushing is pressed into the cover interior insulation bushing, until the cover
The first end of interior steel sleeve connects with the Positioning arc plate.
The Positioning arc plate is removed by the first end of steel sleeve in the cover interior insulation bushing and the cover.
Pressing plate is arranged in the second end and the cover of the cover interior insulation bushing in the second end of steel sleeve, it will be described
Pressing plate is connected with the impeller cover by the second fastener, and the pressing plate is driven to make institute under the action of second fastener
It states steel sleeve in cover interior insulation bushing and the cover to be pressed into together in the impeller cover, until the of the cover interior insulation bushing
The first end of steel sleeve is concordant with the first end of the impeller cover in one end, the cover.
Specifically, the inner wall by cover interior insulation bushing along the impeller cover is pressed into the impeller cover, until
The first end of the cover interior insulation bushing connects with the Positioning arc plate, comprising: long square plate is placed in the cover interior insulation and is served as a contrast
In the second end of set, so that the long square plate is arranged and described along the first straight line being overlapped with the diameter of the cover interior insulation bushing
The both ends of long square plate apply pressure across the cover interior insulation bushing, to the middle part of the long square plate, serve as a contrast the cover interior insulation
Set is mobile relative to the impeller cover；
The long square plate is rotated by rotation center of the center of the cover interior insulation bushing again, into the long square plate
Portion applies pressure, keeps the cover interior insulation bushing mobile relative to the impeller cover.
The long square plate is rotated by rotation center of the center of the long square plate repeatedly, and to the middle part of the long square plate
Apply pressure, until the first end of the cover interior insulation bushing connects with the Positioning arc plate.
Further, the inner wall by steel sleeve in cover along the cover interior insulation bushing is pressed into the cover interior insulation bushing
It is interior, until the first end of steel sleeve connects with the Positioning arc plate in the cover, comprising: the long square plate is placed in the cover
In the second end of interior steel sleeve so that the long square plate arranged along the second straight line being overlapped with the diameter of steel sleeve in the cover and
The both ends of the long square plate apply pressure across steel sleeve in the cover, to the middle part of the long square plate, make steel lining in the cover
Set is mobile relative to the impeller cover.
The long square plate is rotated by rotation center of the center of steel sleeve in the cover again, to the middle part of the long square plate
Apply pressure, keeps steel sleeve in the cover mobile relative to the impeller cover.
The long square plate is rotated by rotation center of the center of steel sleeve in the cover repeatedly, into the long square plate
Portion applies pressure, until short square plate to be placed in the second end of steel sleeve in the cover when steel sleeve moves down difficulty in the cover
On, and the length of the short square plate is less than the length of the long square plate, by the short square plate along in the cover steel sleeve it is straight
The third straight line arrangement that diameter is overlapped, and apply pressure to the short square plate, make the relatively described impeller cover of steel sleeve in the cover
It is mobile.
Again by the short square plate along the 4th straight line arrangement being overlapped with the diameter of steel sleeve in the cover and the short square plate
One end be arranged in the cover in the second end of steel sleeve, apply pressure to the short square plate, make steel sleeve phase in the cover
It is mobile to the impeller cover, until the first end of steel sleeve connects with the Positioning arc plate in the cover.
Further, the short square plate is moved along the circumferencial direction of the second end of steel sleeve in the cover, and to institute
When stating short square plate and applying pressure, if in the cover steel sleeve second end relative to the impeller cover second end not usually,
The short square plate is placed in the cover at the protrusion of the second end of steel sleeve, applies pressure to the short square plate, until institute
The second end for stating steel sleeve in cover is parallel to the second end of the impeller cover.
Further, it is 90 ° that the long square plate, which rotates angle by rotation center of the center of steel sleeve in the cover,.
Specifically, multiple plate holes are offered on the pressing plate, the outer wall of the impeller cover is equipped with the first outward flange
With the second outward flange, first outward flange and second outward flange are located at the both ends of the impeller cover, and described
Multiple first through hole are provided on one outward flange, the plate hole is matched with the first through hole, and second fastener is
Multiple, each second fastener includes bolt and the nut that matches with the bolt, and the bolt passes through corresponding
It is connected through a screw thread after the plate hole and the first through hole with the nut.
Further, when steel sleeve is pressed into together in the impeller cover in the cover interior insulation bushing and the cover,
Into the cover, the interface side of steel sleeve applies pressure, after steel sleeve in the cover is is rolled into tubular by the interface side, with
The parallel side of the axis of steel sleeve in the cover of tubular.
Specifically, before the cover interior insulation bushing being pressed into the impeller cover, first the cover interior insulation bushing is pre-installed
Enter in the impeller cover, the prepackage method includes: that the cover interior insulation bushing of expansion is rolled into tubular, and described in trimming
The side parallel with the axis of the cover interior insulation bushing on cover interior insulation bushing, the outer diameter and the leaf of the cover interior insulation bushing
The internal diameter of wheel housing matches.
Further, drawstring is installed in the Positioning arc plate, the drawstring is pulled to remove the Positioning arc plate.
Further, pulley is installed in the support positioning plates, is wrapped in the middle part of the drawstring on the pulley, institute
The drawstring stated between Positioning arc plate and the pulley is horizontally disposed.
Technical solution provided in an embodiment of the present invention has the benefit that impeller chimney group provided in an embodiment of the present invention
Part assembly method, impeller cover is fixed in support positioning plates, so as to avoid impeller cover in assembling process
Vibration or trembling, one end of cover interior insulation bushing connect with Positioning arc plate, and Positioning arc plate is made to play support to cover interior insulation bushing
The effect of positioning and stop, avoiding cover interior insulation bushing, distortion moves down, leans out impeller chimney in steel sleeve installation process in cover
Shell and the problem that cannot be completely mounted in impeller cover, when cover interior insulation bushing and cover in steel sleeve simultaneously with positioning arc
When plate connects, then Positioning arc plate is withdrawn from, is pressed steel sleeve in cover interior insulation bushing and cover together by pressing plate and the second fastener
Enter in impeller cover, which can guarantee cover interior insulation bushing and cover interior steel sleeve integrally indentation and uniform force, to make leaf
Take turns housing, cover interior insulation bushing and in covering steel sleeve three bottom end face edging, and then greatly reduce cover interior insulation bushing and
The dislocation and deformation of steel lining inner room, improve the success rate of assembly in covering, and are only finely tuned in cover interior insulation bushing and cover by the later period
The position of steel sleeve reduces the workload of assembly, shortens assembly period, improves processing efficiency, is easily generalized to
In other similar assembling process.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of impeller shade assembly provided in an embodiment of the present invention；
Fig. 2 is that the first end of impeller cover provided in an embodiment of the present invention is arranged in the structural schematic diagram of support positioning plates；
Fig. 3 is the structural schematic diagram provided in an embodiment of the present invention that Positioning arc plate is arranged in support positioning plates；
Fig. 4 is the structural schematic diagram of the cover interior insulation bushing of expansion provided in an embodiment of the present invention；
Fig. 5 is the structural representation that long square plate provided in an embodiment of the present invention is placed in the second end of cover interior insulation bushing
Figure；
Fig. 6 is the installation diagram that cover interior insulation bushing provided in an embodiment of the present invention connects with Positioning arc plate；
Fig. 7 be it is provided in an embodiment of the present invention by long square plate by cover steel sleeve be pressed into cover interior insulation bushing structure show
It is intended to；
Fig. 8 be it is provided in an embodiment of the present invention by short square plate by cover steel sleeve be pressed into cover interior insulation bushing structure show
It is intended to；
Fig. 9 is the structural schematic diagram after Positioning arc plate provided in an embodiment of the present invention is removed；
Figure 10 is steel sleeve in pressing plate provided in an embodiment of the present invention is arranged in the second end of cover interior insulation bushing and covers
Structural schematic diagram in second end；
Figure 11 is the structural schematic diagram that steel sleeve is installed in place in cover interior insulation bushing provided in an embodiment of the present invention and cover；
Figure 12 is long square plate provided in an embodiment of the present invention and the fit structure schematic diagram for covering interior steel sleeve；
Figure 13 is short square plate provided in an embodiment of the present invention and the structural schematic diagram for covering interior steel sleeve cooperation；
Figure 14 is method flow diagram provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment to facilitate the understanding of the present invention first combines Fig. 1 simply to introduce the impeller shade assembly of molding assembly below
Structure.As shown in Figure 1, the impeller shade assembly of molding assembly includes steel in the impeller cover a of tubular, cover interior insulation bushing b and cover
Bushing c, cover interior insulation bushing b are mounted in impeller cover a, are covered interior steel sleeve c and are mounted in cover interior insulation bushing b, impeller chimney
The outer wall of shell a is equipped with the first outward flange and the second outward flange, and the first outward flange and the second outward flange are located at impeller cover a
Both ends, be provided with first through hole a2 on the first outward flange, the second outward flange is equipped with the second through-hole a3, first through hole a2 and the
For two through-hole a3 along the axially extending of impeller cover a, the both ends of impeller cover a are provided with seam allowance a1.
Impeller shade assembly assembly method provided in an embodiment of the present invention is completed by impeller shade assembly assembly tooling cooperation, is
It is easy to understand the embodiment of the present invention, first combines the structure for simply introducing impeller shade assembly assembly tooling below.
Impeller shade assembly assembly tooling includes: that positioning component, bushing is supported to support positioning component and pressure assembly in advance.
Fig. 2 to Figure 11 is respectively the usage state diagram of impeller shade assembly assembly tooling.As shown in Fig. 2-Figure 11, support positioning
Component include: carry impeller cover a one end support positioning plates 1 and the first fastener 2, the first fastener 2 be configured as by
One end of impeller cover a is fixed in support positioning plates 1.Wherein, first with impeller cover a is provided in support positioning plates 1
The corresponding support positioning plates through-hole 1b of through-hole a2.
It includes: that drawstring hanger 3 and at least two bushings support positioning unit, drawstring hanger in advance that bushing supports positioning component in advance
3 are fixed in support positioning plates 1, for example, can be welded in support positioning plates 1.At least two bushings support positioning surrounding in advance
3 arranged for interval of drawstring hanger.It includes: Positioning arc plate 4 and drawstring 5 that each bushing supports positioning unit in advance.Positioning arc plate 4 is arranged
In support positioning plates 1 and the inner wall of fitting impeller cover a is placed, and the first end of drawstring 5 is mounted in Positioning arc plate 4, drawstring 5
Second end be mounted on drawstring hanger 3 (second end of drawstring 5 can be hung on drawstring hanger 3), drawstring 5 is configured as outside
Power effect is lower to pull Positioning arc plate 4.
Pressure assembly includes: long square plate 11 (see Fig. 5), short square plate 12 (see Fig. 8), pressing plate 8 (see Fig. 9) and the second fastener
9 (see Fig. 9).Long square plate 11 is configured as that cover interior insulation bushing b being pressed into impeller cover a until in cover absolutely under external force
One end of edge bushing b connects with Positioning arc plate 4, and short square plate 12 is configured as that interior steel sleeve c indentation cover will be covered under external force
In interior insulation bushing b, until one end of steel sleeve c connects with Positioning arc plate 4 in covering, the second fastener 9 connects pressing plate 8 and impeller
Housing a, it is mobile relative to impeller cover a that the second fastener 9 is configured as band dynamic pressure plate 8 under external force, wherein on pressing plate 8
It is provided with plate hole 8a corresponding with the second through-hole a2 of impeller cover a.
Impeller shade assembly assembly tooling may include that four bushings support positioning unit in advance, and four Positioning arc plates 4 are arranged in
Orthogonal two diametrically on impeller cover a.It may be two or three that the bushing supports positioning unit in advance, each along
The circumference equidistant placement of impeller cover a arranges that multiple bushings support positioning unit that can preferably support cover interior insulation bushing b in advance
With steel sleeve c in cover.
The embodiment of the invention provides a kind of impeller shade assembly assembly methods, suitable for assembling impeller chimney as shown in Figure 1
Component, Figure 14 are the flow chart of impeller shade assembly assembly method provided in an embodiment of the present invention.As shown in figure 14, the impeller chimney group
Part assembly method includes:
Step 1: the first end of the impeller cover of tubular being arranged in support positioning plates, by the first fastener by impeller
Housing is fixed in support positioning plates.
Fig. 2 is the installation diagram of impeller cover a and support positioning plates 1.As shown in Fig. 2, the step 1 may include following step
It is rapid:
The first end of impeller cover a is placed in support positioning plates 1, wheel rotor housing a make the second through-hole a3 with it is right
The support positioning plates through-hole 1b alignment answered passes through first through hole a2 and support positioning plates through-hole 1b for leaf using the first fastener 2
Wheel housing a and support positioning plates 1 are fixed together.
In the present embodiment, the first fastener 2 can be bolt, be provided with and the bolt phase on support positioning plates through-hole 1b
The screw thread of cooperation.In other embodiments, the first fastener 2 can also be clamping element, such as clip.
Step 2: arranging at least two Positioning arc plates in support positioning plates, and at least two Positioning arc plates are bonded impeller
The inner wall of housing is placed, and at least two Positioning arc plates along the circumferential direction uniform intervals cloth centered on the center line of impeller cover
It sets.
The step 2 may comprise steps of:
Step 201: the raised 1a matched with the seam allowance a1 of impeller cover a is processed in support positioning plates 1, Fig. 3 is support
The installation diagram of positioning plate and Positioning arc plate.As shown in figure 3, the seam allowance a1 of impeller cover a is installed on support positioning in assembly
On the raised 1a of plate 1.Raised 1a can prevent impeller cover a from occurring to vibrate in assembling process or tremble.
Step 3: by cover interior insulation bushing along the inner wall indentation impeller cover of impeller cover, until cover interior insulation bushing
First end connects with Positioning arc plate.
Specifically, which may comprise steps of:
Step 301: before cover interior insulation bushing b is pressed into impeller cover a, cover interior insulation bushing b being first pre-loaded into impeller chimney
In shell a, prepackage method includes: the cover interior insulation bushing b (referring to fig. 4) of expansion to be rolled into tubular, and trim cover interior insulation bushing b
The upper interface side b1 parallel with the axis of cover interior insulation bushing b, up to cover interior insulation bushing b outer diameter and impeller cover a it is interior
Diameter matches, during trimming, it may be necessary to and it trims repeatedly and attempts for cover interior insulation bushing b to be pre-loaded into impeller cover a,
Until the size for being trimmed to cover interior insulation bushing b is suitable.Need to guarantee that cover interior insulation bushing b can be with impeller chimney when trimming
The inner wall major part region of shell a contacts, and allows to have gap locally, but gap wants small, such as gap is less than 0.2mm, meanwhile,
Also to guarantee that cover interior insulation bushing b cannot be by free-falling on impeller cover a.
Step 302: long square plate 11 is placed in the second end of cover interior insulation bushing b so that long square plate 11 along in cover
The both ends of first straight line arrangement and long square plate 11 that the diameter of insulating bushing b is overlapped across cover interior insulation bushing b, Fig. 5 be rectangular
Plate 11 is placed in the structural schematic diagram in the second end of cover interior insulation bushing b.As shown in figure 5, applying to the middle part of long square plate 11
Pressure keeps cover interior insulation bushing b mobile relative to impeller cover a.By taking impeller cover a of the internal diameter less than 660mm as an example, distance is moved down
It can be 30mm.
In the present embodiment, it uses copper rod gently to tap long square plate 11 and pressure is applied to long square plate 11 to realize.
Step 303: again rotating long square plate 11 by rotation center of the center of cover interior insulation bushing b, to long square plate 11
Middle part applies pressure, it is mobile relative to impeller cover a to make cover interior insulation bushing b, such as move down 30mm.
Step 304: repeating step 303, i.e., repeatedly revolve long square plate 11 by rotation center of the center of cover interior insulation bushing b
Turn, and apply pressure to the middle part of long square plate 11, until the first end of cover interior insulation bushing b connects with Positioning arc plate 4, referring to figure
6, Fig. 6 be the installation diagram of cover interior insulation bushing b and Positioning arc plate 4.
In assembling process, when the second end of cover interior insulation bushing b is not obviously parallel with the second end of impeller cover a,
Alternatively, long square plate 11 can be placed on to cover interior insulation bushing b's when serious misalignment occurs for the interface side b1 of cover interior insulation bushing b
At second end, keep the second end of cover interior insulation bushing b parallel with the second end of impeller cover a by tapping long square plate 11, meanwhile,
The interface side b1 of cover interior insulation bushing b can also be arranged smooth.
Step 4: by steel sleeve in cover along the inner wall indentation cover interior insulation bushing of cover interior insulation bushing, until steel lining in covering
The first end of set connects with Positioning arc plate.
Specifically, which may comprise steps of:
Step 401: steel sleeve c in the cover of roll-forming being pre-loaded into cover interior insulation bushing b, according to prepackage situation, instead
Strike-on mill covers the interface side of interior steel sleeve c, until the first end of steel sleeve c can just be installed in cover interior insulation bushing b in covering,
And steel sleeve c needs to meet in cover interior insulation bushing b and cover: the inner wall of the outer wall of steel sleeve c and cover interior insulation bushing b in covering
95% or more region contact is locally allowing that there are gaps, but gap wants small, such as gap is less than 0.1mm, meanwhile, also
Guarantee that covering interior steel sleeve c is unable to free-falling.Wherein, the interface side of steel sleeve c is that steel sleeve c will roll into cylinder in covering in covering
After shape, the side parallel with the axis of steel sleeve c in the cover of tubular.
In general, needing to brush paint for the surface impeller cover a after molding, for preventing in impeller cover a process
Only impeller cover a gets rusty, still, since domestic traditional painting technology cannot be guaranteed paint thickness and reason on impeller cover a
It is consistent by the paint thickness of requirement, it therefore, can be reserved to steel sleeve c in covering according to the depth information that impeller cover a paints
Machining allowance, in the present embodiment, in the cover of expansion the blank length of steel sleeve c compared to theoretical length to reserve it is certain more than
Amount can reserve the surplus of 3mm by taking impeller shade assembly of the internal diameter of impeller cover a less than 660mm as an example.Further, it is also possible to right
Steel sleeve c carries out the processing of reconditioning burr in covering.
Step 402: long square plate 11 is placed in cover in the second end of steel sleeve c so that long square plate 11 along with steel in cover
The both ends of second straight line arrangement and long square plate 11 that the diameter of bushing c is overlapped across steel sleeve c in cover, Fig. 7 be to pass through long square plate
11 are pressed into steel sleeve c in cover the structural schematic diagram of cover interior insulation bushing b, press as shown in fig. 7, applying to the middle part of long square plate 11
Power keeps steel sleeve c in cover mobile relative to impeller cover a, and in the present embodiment, covering interior steel sleeve c can move with respect to impeller cover a
Dynamic 5cm or so.
Specifically, during applying pressure, "painted-face" character in opera free-falling at H1 above steel sleeve c in cover can be used,
Wherein, H1=1/10H, H are the height of steel sleeve in covering.
Step 403: again rotating long square plate 11 by rotation center of the center of steel sleeve c in cover, into long square plate 11
Portion applies pressure, keeps steel sleeve c in cover mobile relative to impeller cover a, such as move 5cm.
When implementation, it can be 90 ° that the center of the long steel sleeve c using in cover of square plate 11, which rotates angle as rotation center,.
Step 404: repeating step 403, i.e., repeatedly revolve long square plate 11 by rotation center of the center of steel sleeve c in cover
Turn.Figure 12 is the fit structure schematic diagram of long square plate 11 provided in an embodiment of the present invention with steel sleeve c in cover.As shown in figure 12,
Apply pressure to the middle part of long square plate 11, until when steel sleeve c moves down difficulty in covering.Fig. 8 is steel in being covered by short square plate 12
Bushing c is pressed into cover interior insulation bushing b.As shown in figure 8, short square plate 12 is placed in cover in the second end of steel sleeve c, and short side
The length of plate 12 is less than the length of long square plate 11, the third straight line cloth that short square plate 12 is overlapped along the diameter of steel sleeve c in cover
It sets, and applies pressure to short square plate 12, keep steel sleeve c in cover mobile relative to impeller cover a, such as move 2mm.When realizing,
One end of short square plate 12 can be arranged in cover on steel sleeve c, the other end of short square plate 12 is held by operator.
Again by short square plate 12 along one end cloth of the 4th straight line arrangement and short square plate 12 that are overlapped with the diameter of steel sleeve c in cover
It sets in cover in the second end of steel sleeve c.Figure 13 is steel sleeve c cooperation in short square plate 12 provided in an embodiment of the present invention and cover
Structural schematic diagram.As shown in figure 13, apply pressure to short square plate 12, keep steel sleeve c in cover mobile relative to impeller cover a, until
The first end of steel sleeve c connects with Positioning arc plate 4 in covering.
When implementation, third straight line and the 4th straight line can be arranged vertically, and the intersection point and cover of third straight line and the 4th straight line
The axis of interior steel sleeve c is overlapped.
Specifically, short square plate 12 is moved along the circumferencial direction of the second end of steel sleeve c in cover, and is applied to short square plate 12
When plus-pressure, if in covering steel sleeve c second end relative to impeller cover a second end not usually, short square plate 12 is placed in
In covering at the protrusion of the second end of steel sleeve c, apply pressure to short square plate 12, until the second end of steel sleeve c is parallel in covering
The second end of impeller cover a, wherein the steel lining in cover that steel sleeve c is generated due to compressional deformation in cover is referred at protrusion
The second end of set c is locally higher than the position of the second end other parts of steel sleeve c in cover.
When implementation, short square plate 12 can be sequentially arranged on impeller cover a orthogonal two diametrically.
Step 5: Positioning arc plate is removed by the first end of steel sleeve in cover interior insulation bushing and cover.
Specifically, Fig. 9 is the structural schematic diagram after Positioning arc plate is removed, as shown in figure 9, being equipped in Positioning arc plate 4
Drawstring 5 pulls drawstring 5 to remove Positioning arc plate 4.When cover interior insulation bushing and covers interior steel sleeve while connecting with Positioning arc plate
When, drawstring 5 can be convenient and easy to withdraw from Positioning arc plate 4 from installation position, last for steel sleeve c in cover interior insulation bushing b and cover
Be co-mounted to a vacating space.When implementing, wing plate 4a can be set in Positioning arc plate 4, offer drawing on wing plate 4a
Dog hole, the first end of drawstring 5 are equipped with drag hook 5a, and drag hook 5a is hooked on drag hook hole.It can by setting drag hook hole and drag hook 5a
Fast assembling-disassembling Positioning arc plate 4 and drawstring 5.In the present embodiment, pulley 6 is installed, the middle part of drawstring 5 twines in support positioning plates 1
It is wound on pulley 6, the drawstring 5 between Positioning arc plate 4 and pulley 6 is horizontally disposed.Positioning can be pulled convenient for drawstring 5 by being arranged so
Arc plate 4.Further, wing plate 4a is specifically as follows Positioning arc plate 4 and turns over the plank folded, offers diameter in the middle part of wing plate 4a
For the drag hook hole of 20mm, and the upper surface of wing plate 4a with the bottom of pulley 6 at least differs 5~10mm (drag hook 5a is higher by wing plate
The upper surface certain distance of 4a), it can guarantee that drag hook 5a is hung on drag hook hole in this way, the pulling force of drag hook 5a and drawstring 5 is level
Pulling force.In addition, there is certain distance in the lower surface of wing plate 4a away from the bottom surface of Positioning arc plate 4, so that drag hook 5a is relatively easily installed
In drag hook hole.Wherein, drag hook 5a can be bent by the round steel of diameter 5mm.
Specifically, when drawstring 5 does not pull Positioning arc plate 4, drawstring 5 can be relaxed state and hang on drawstring hanger 3.
Step 6: by pressing plate be arranged in the second end of cover interior insulation bushing and cover in steel sleeve second end on, by pressing plate and
Impeller cover is connected by the second fastener, and band dynamic pressure plate makes cover interior insulation bushing and covers interior steel under the action of the second fastener
Bushing is pressed into impeller cover together, up to the first end and impeller cover of steel sleeve in the first end of cover interior insulation bushing, cover
First end it is concordant.
Specifically, Figure 10 is that pressing plate 8 is arranged in the second end and cover of cover interior insulation bushing b in the second end of steel sleeve c
Structural schematic diagram.As shown in Figure 10, multiple plate hole 8a are offered on pressing plate 8, plate hole 8a is matched with first through hole a2,
Second fastener 9 can be to be multiple, and each second fastener 9 includes bolt and the nut that matches with bolt, and bolt passes through
It is connected through a screw thread after corresponding plate hole 8a and first through hole a2 with nut.In the present embodiment, by tightening along impeller chimney
Second fastener 9 of the circumferencial direction equidistant placement of shell a makes steel sleeve c in cover interior insulation bushing b and cover be pressed into impeller chimney together
In shell a.Meanwhile when steel sleeve c is pressed into together in impeller cover a in cover interior insulation bushing b and cover, the steel sleeve c into cover
Interface side applies pressure.
In general, four first through hole a2 and four the second through-hole a3, therefore, 2 He of the first fastener are arranged on impeller cover a
Second fastener 9 corresponds to four, the reference circle size of four the first fasteners 2 four first with impeller cover a respectively
The reference circle size of through-hole a2 is consistent, and the reference circle size of four the second fasteners 9 is logical with four second of impeller cover a respectively
The reference circle size of hole a3 is consistent.
In assembly, the distance by controlling bolt precession can guarantee the uniform force of pressing plate 8 Yu impeller cover a, together
When it is easy to disassemble.Specifically, rotation bolt two encloses every time, when first of steel sleeve c in the first end of cover interior insulation bushing b and cover
When holding first end a distance apart from impeller cover a, such as 10mm, it is changed to rotation bolt one and encloses.Meanwhile it rotating every time
After bolt, the interface side of steel sleeve c in covering all is tapped using copper rod or wooden mallet, the interface side of steel sleeve c in cover is made to keep smooth,
For reducing probability, degree and the cover interior insulation that the misalignment on the interface side of steel sleeve c, cover interior insulation bushing b are squeezed and deformed in cover
The probability of bushing b axile displacement, degree.
When implementing, by the center of pressing plate 8 with cover in the center of steel sleeve c be aligned, rotate pressing plate 8 make plate hole 8a with it is right
Pressing plate 8 is connect by the first through hole a2 alignment answered, the second fastener 9 with impeller cover a again.
Step 7: when pressing plate is moved to the second end of impeller cover, guaranteeing that pressing plate is largely bonded with impeller cover, office
Portion allows to have the gap below 0.2mm.Figure 11 is cover interior insulation bushing b and covers the structural schematic diagram that interior steel sleeve c is installed in place.
As shown in figure 11, cover interior insulation bushing b and the interior steel sleeve c of cover are installed in place, and are removed the assembly tooling of impeller shade assembly, are obtained such as figure
Impeller shade assembly shown in 1.
Step 8: the impeller shade assembly observed, if the case where there are local high spot or axile displacements, and if it exists, then
Trimming polishing is carried out to the cover interior insulation bushing b on impeller shade assembly.
Impeller shade assembly assembly method provided in an embodiment of the present invention, is fixed on support positioning plates for impeller cover
On, so as to avoid vibration or trembling of the impeller cover in assembling process, one end and the Positioning arc plate phase of cover interior insulation bushing
It connects, so that Positioning arc plate is played the role of support positioning and stop to cover interior insulation bushing, avoid cover interior insulation bushing in cover
The problem for moving down, leaning out impeller cover and cannot being completely mounted in impeller cover is distorted in steel sleeve installation process, when
When steel sleeve connects with Positioning arc plate simultaneously in cover interior insulation bushing and cover, then Positioning arc plate is withdrawn from, it is tight by pressing plate and second
Steel sleeve in cover interior insulation bushing and cover is pressed into impeller cover by firmware together, which can guarantee cover interior insulation bushing and cover
Interior steel sleeve is integrally pressed into and uniform force, to make impeller cover, cover interior insulation bushing and the bottom for covering interior steel sleeve three
End face edging, and then greatly reduce cover interior insulation bushing and cover the dislocation and deformation of interior steel lining inner room, improve the success of assembly
Rate only finely tunes cover interior insulation bushing by the later period and covers the position of interior steel sleeve, reduces the workload of assembly, shortens
It improves processing efficiency assembly period, is easily generalized in other similar assembling process.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of impeller shade assembly assembly method is suitable for assembly impeller shade assembly, which is characterized in that the impeller shade assembly dress
Method of completing the square includes:
The first end of the impeller cover of tubular is arranged in support positioning plates, is consolidated the impeller cover by the first fastener
It is scheduled in the support positioning plates；
At least two Positioning arc plates are arranged in the support positioning plates, and at least two Positioning arc plate is bonded the leaf
Take turns housing inner wall place, and at least two Positioning arc plate centered on the center line of the impeller cover along the circumferential direction
Uniform intervals arrangement；
Inner wall by cover interior insulation bushing along the impeller cover is pressed into the impeller cover, until the cover interior insulation bushing
First end connect with the Positioning arc plate；
Inner wall by steel sleeve in cover along the cover interior insulation bushing is pressed into the cover interior insulation bushing, until steel in the cover
The first end of bushing connects with the Positioning arc plate；
The Positioning arc plate is removed by the first end of steel sleeve in the cover interior insulation bushing and the cover；
Pressing plate is arranged in the second end and the cover of the cover interior insulation bushing in the second end of steel sleeve, by the pressing plate
It is connected with the impeller cover by the second fastener, the pressing plate is driven to make the cover under the action of second fastener
Steel sleeve is pressed into together in the impeller cover in interior insulation bushing and the cover, until the first of the cover interior insulation bushing
The first end of steel sleeve is concordant with the first end of the impeller cover in end, the cover.
2. impeller shade assembly assembly method according to claim 1, which is characterized in that it is described by cover interior insulation bushing along institute
The inner wall for stating impeller cover is pressed into the impeller cover, until the first end and the Positioning arc plate of the cover interior insulation bushing
Connect, comprising:
Long square plate is placed in the second end of the cover interior insulation bushing, so that the long square plate is served as a contrast along with the cover interior insulation
The both ends of first straight line arrangement and the long square plate that the diameter of set is overlapped are across the cover interior insulation bushing, to the long square plate
Middle part apply pressure, keep the cover interior insulation bushing mobile relative to the impeller cover；
Again by the long square plate using the center of the cover interior insulation bushing as rotation center rotate, to the long square plate in the middle part of apply
Plus-pressure keeps the cover interior insulation bushing mobile relative to the impeller cover；
The long square plate is rotated by rotation center of the center of the cover interior insulation bushing repeatedly, and into the long square plate
Portion applies pressure, until the first end of the cover interior insulation bushing connects with the Positioning arc plate.
3. impeller shade assembly assembly method according to claim 2, which is characterized in that described to cover interior steel sleeve described in
The inner wall of cover interior insulation bushing is pressed into the cover interior insulation bushing, until the first end of steel sleeve and the positioning in the cover
Arc plate connects, comprising:
The long square plate is placed in the cover in the second end of steel sleeve, so that the long square plate edge and steel lining in the cover
The both ends of second straight line arrangement and the long square plate that the diameter of set is overlapped are across steel sleeve in the cover, to the long square plate
Middle part applies pressure, keeps steel sleeve in the cover mobile relative to the impeller cover；
The long square plate is rotated by rotation center of the center of steel sleeve in the cover again, is applied to the middle part of the long square plate
Pressure keeps steel sleeve in the cover mobile relative to the impeller cover；
Repeatedly by the long square plate using the center of steel sleeve in the cover as rotation center rotate, to the long square plate in the middle part of apply
Plus-pressure, until short square plate is placed in the cover in the second end of steel sleeve when steel sleeve moves down difficulty in the cover, and
The length of the short square plate is less than the length of the long square plate, and the short square plate edge is overlapped with the diameter of steel sleeve in the cover
Third straight line arrangement, and apply pressure to the short square plate, keep steel sleeve in the cover mobile relative to the impeller cover；
Again by the short square plate along the one of the 4th straight line arrangement and the short square plate that are overlapped with the diameter of steel sleeve in the cover
End is arranged in the cover in the second end of steel sleeve, applies pressure to the short square plate, makes in the cover steel sleeve with respect to institute
Impeller cover movement is stated, until the first end of steel sleeve connects with the Positioning arc plate in the cover.
4. impeller shade assembly assembly method according to claim 3, which is characterized in that by the short square plate along the cover
The circumferencial direction of the second end of interior steel sleeve is mobile, and when applying pressure to the short square plate, if in the cover steel sleeve the
Two ends relative to the impeller cover second end not usually, the short square plate is placed in the second end of steel sleeve in the cover
Protrusion at, apply pressure to the short square plate, until the second end of steel sleeve is parallel to the impeller cover in the cover
Second end.
5. impeller shade assembly assembly method according to claim 3, which is characterized in that the long square plate is with steel in the cover
The center of bushing is that rotation center rotation angle is 90 °.
6. impeller shade assembly assembly method according to claim 1, which is characterized in that offer multiple pressures on the pressing plate
The outer wall of plate hole, the impeller cover is equipped with the first outward flange and the second outward flange, first outward flange and described second
Outward flange is located at the both ends of the impeller cover, and multiple first through hole, the pressing plate are provided on first outward flange
Hole is matched with the first through hole, second fastener be it is multiple, each second fastener include bolt and with
The nut that the bolt matches, the bolt lead to after passing through the corresponding plate hole and the first through hole with the nut
Cross threaded connection.
7. impeller shade assembly assembly method according to claim 6, which is characterized in that when the cover interior insulation bushing and institute
When stating that steel sleeve is pressed into together in the impeller cover in cover, into the cover, the interface side of steel sleeve applies pressure, described to connect
Mouth side is the side parallel with the axis of steel sleeve in the cover of tubular after steel sleeve in the cover is rolled into tubular.
8. impeller shade assembly assembly method according to claim 1, which is characterized in that the cover interior insulation bushing to be pressed into
Before the impeller cover, first the cover interior insulation bushing is pre-loaded into the impeller cover, the prepackage method includes: that will open up
The cover interior insulation bushing opened is rolled into tubular, and trims the axis on the cover interior insulation bushing with the cover interior insulation bushing
The outer diameter on parallel side, the cover interior insulation bushing is matched with the internal diameter of the impeller cover.
9. impeller shade assembly assembly method according to claim 1-8, which is characterized in that in the Positioning arc plate
Drawstring is installed, the drawstring is pulled to remove the Positioning arc plate.
10. impeller shade assembly assembly method according to claim 9, which is characterized in that installed in the support positioning plates
There is pulley, is wrapped in the middle part of the drawstring on the pulley, the drawstring water between the Positioning arc plate and the pulley
Plain cloth is set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007549.7A CN106870246B (en) | 2017-01-05 | 2017-01-05 | A kind of impeller shade assembly assembly method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007549.7A CN106870246B (en) | 2017-01-05 | 2017-01-05 | A kind of impeller shade assembly assembly method |
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| CN106870246A CN106870246A (en) | 2017-06-20 |
| CN106870246B true CN106870246B (en) | 2019-01-18 |
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| US6270385B1 (en) * | 1999-09-07 | 2001-08-07 | Bombardier Motor Corporation Of America | Pump jet rotor housing modification for noise signature spectral control |
| CN101962065B (en) * | 2010-10-20 | 2012-10-31 | 武昌船舶重工有限责任公司 | Installation process and tooling of impeller casing of marine water jet propulsion device |
| CN104129488B (en) * | 2014-07-29 | 2017-04-26 | 武汉船用机械有限责任公司 | Impeller cover structure of waterjet propulsion device and manufacturing method thereof |
| CN205096804U (en) * | 2015-10-28 | 2016-03-23 | 重庆隆兆机械有限公司 | General fast -assembling mechanism of big specification axle class part and disc cover |
| CN105171679B (en) * | 2015-11-05 | 2017-01-25 | 国家电网公司 | Method and tool for installing U seals on guide vane upper end covers of water turbine |
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