CN208496878U - The assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance - Google Patents
The assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance Download PDFInfo
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- CN208496878U CN208496878U CN201820857593.7U CN201820857593U CN208496878U CN 208496878 U CN208496878 U CN 208496878U CN 201820857593 U CN201820857593 U CN 201820857593U CN 208496878 U CN208496878 U CN 208496878U
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- oil pump
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Abstract
The utility model discloses a kind of assembly and disassembly toolings of double shrouded wheel under restricted clearance, including main shaft, conversion adapter, impeller hub, annular oil groove, oilhole, main shaft pouring orifice, base stake, hydraulic nut piston, hydraulic nut, hydraulic nut pouring orifice, dial depth gauge, magnetic stand, oil valve, total high-pressure hose, first point of high-pressure hose, second point of high-pressure hose, high pressure hand-operated oil pump, overflow valve, pressure gauge, high-pressure oil pump lever and Anti-slip cover, hydraulic nut is connected on the outside of one end of conversion adapter, the other end inner wall of conversion adapter is connected with main shaft, one end of hydraulic nut is equipped with hydraulic nut piston, the other end of hydraulic nut piston is equipped with hydraulic nut pouring orifice, impeller hub is connected on the outside of main shaft, the outside of impeller hub inner wall one end and conversion adapter far from main shaft connects, this limited sky Between lower double shrouded wheel assembly and disassembly tooling, structure is simple, is easily achieved and saving of work and time.
Description
Technical field
The utility model relates to the assembly and disassembly technical field of impeller under enclosed space, enclosed leaf under specially a kind of restricted clearance
The assembly and disassembly tooling of wheel.
Background technique
Double shrouded wheel is the receded disk impeller with wheel disc, wheel cap, uses to obtain more one in fixed centrifugal compressor
Kind, it is lost without the undercurrent at one top of blade, efficiency is higher, but the stress of wheel cap is larger, and peripheral speed is restricted, general small
In or equal to 320nsI, it is divided into one formula impeller of backward leaning vane, radial blade formula impeller and forward curved vane formula by blade curve form
Juice wheel.
A kind of connection structure of centrifugal pump impeller and pump shaft, passes through impeller according to existing patent CN204299941U
The axial force that rotation generates keeps the direction of impeller power in the axial direction mobile, at this point, the frictional disk and sliding bearing in impeller shaft are at one
Secondary to friction, sliding bearing is realized the connection of centrifugal impeller pump and pump shaft, high-efficient but which pair by the axial force of impeller
It is cumbersome in the installation and removal of device, shaft end locking nut is usually taken out, is then made using drawbench or percussion impeller
Impeller absent-mindedness, and for the impeller of major diameter, it is difficult to meet requiring neutrality for centrifugal impeller, one kind is needed to be able to solve enclosed
The limited space problem of impeller oil pressure assembly, at the same solve the problems, such as impeller and axis to neutral device, for this purpose, it is proposed that one
The assembly and disassembly tooling of double shrouded wheel under kind restricted clearance.
Utility model content
The purpose of this utility model is to provide a kind of assembly and disassembly toolings of double shrouded wheel under restricted clearance, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions: the dress of double shrouded wheel under a kind of restricted clearance
Tear tooling, including main shaft, conversion adapter, impeller hub, annular oil groove, oilhole, main shaft pouring orifice, base stake, hydraulic spiral shell open
Female piston, hydraulic nut, hydraulic nut pouring orifice, dial depth gauge, magnetic stand, oil valve, total high-pressure hose, first point of high pressure
Hose, second point of high-pressure hose, high pressure hand-operated oil pump, overflow valve, pressure gauge, high-pressure oil pump lever and Anti-slip cover, the conversion
It is connected with hydraulic nut on the outside of one end of adapter, the other end inner wall of the conversion adapter is connected with main shaft, described hydraulic
One end of nut is equipped with hydraulic nut piston, and the other end of the hydraulic nut piston is equipped with hydraulic nut pouring orifice, described
Impeller hub is connected on the outside of main shaft, the impeller hub inner wall connects on the outside of one end and conversion adapter far from main shaft
It connects, the one end of the hydraulic nut piston far from hydraulic nut is contacted with the end of impeller hub, the top of the hydraulic nut
It is connected with magnetic stand, dial depth gauge, the top installation of the hydraulic nut piston are installed at the top of the magnetic stand
There is base stake, the indicator of the dial depth gauge is contacted with the surface of base stake, and the main shaft is located in conversion adapter
The one end in portion is equipped with main shaft pouring orifice, and the main shaft is equipped with oilhole close to one end of main shaft pouring orifice, and main shaft is located at oilhole
One end is equipped with annular oil groove, and one end at the top of the high pressure hand-operated oil pump is equipped with high-pressure oil pump lever, the high pressure hand-operated oil pump
The outside that top is located at high-pressure oil pump lever is equipped with pressure gauge, and the high pressure hand-operated oil pump is equipped with excessive close to one end of pressure gauge
Valve is flowed, one end that the high pressure hand-operated oil pump is located at overflow valve is connected with total high-pressure hose, and total high-pressure hose is far from high pressure
One end of hand oil pump forms first point of high-pressure hose and second point of high-pressure hose, the end of first point of high-pressure hose pass through
Conversion adapter is connect with main shaft pouring orifice, and the end of second point of high-pressure hose is connect with hydraulic nut pouring orifice, described
Oil valve is mounted on the outside of first point of high-pressure hose and second point of high-pressure hose.
Preferably, it is equipped with closely-pitched external screw thread on the outside of one end of the conversion adapter, the inside of the hydraulic nut is equipped with
The closely-pitched internal screw thread matched with closely-pitched external screw thread, the conversion adapter are connected through a screw thread with hydraulic nut, the conversion
The other end inner wall of adapter is equipped with closely-pitched internal screw thread, and the outside of the main shaft is equipped with closely-pitched external screw thread, the conversion adapter
It is connected through a screw thread with main shaft.
Preferably, the high-pressure oil pump lever is equipped with Anti-slip cover far from one end of high pressure hand-operated oil pump.
Preferably, the bottom of the base stake is equipped with external screw thread, and the top of the hydraulic nut piston is equipped with internal screw thread,
The base stake is connected through a screw thread with hydraulic nut piston.
Preferably, the impeller hub and main shaft are circular cone interference fit.
Compared with prior art, the utility model has the beneficial effects that
1, under a kind of restricted clearance of the utility model double shrouded wheel assembly and disassembly tooling, pass through setting one high pressure manual oil
Pump closes the oil valve on the second high-pressure hose when needing to main shaft fuel feeding, opens overflow valve, makes high pressure hand-operated oil pump to master
Axis carries out fuel feeding, when needing to hydraulic nut fuel feeding, closes the oil valve on the first high-pressure hose, opens overflow valve, make high pressure
Hand oil pump can using a high pressure hand-operated oil pump realization respectively to main shaft and hydraulic nut fuel feeding to hydraulic nut fuel feeding
Unnecessary space hold is reduced, it is easy to use.
2, under a kind of restricted clearance of the utility model double shrouded wheel assembly and disassembly tooling, hydraulic nut is connected to conversion adapter
External screw thread on, hand oil pump gives hydraulic nut fuel feeding by hydraulic nut oil filler point, and hydraulic nut piston is pushed against impeller wheel
On hub, oil pressure pushes the axial movement of hydraulic nut piston, impeller hub can be pushed to move axially to the right, on hydraulic nut end face
Equipped with magnetic stand, dial depth gauge is installed on hydraulic nut by magnetic stand, and the abutting of dial depth gauge indicator passes through spiral shell
Line connects the base stake being mounted on hydraulic nut piston, when hydraulic nut piston is pushed by the oil pressure in hand oil pump,
Base stake mounted thereto can also be pushed together, and dial depth gauge can accurately measure the axial displacement of impeller hub,
High pressure hand-operated oil pump is connect by first point of high-pressure hose with main shaft end face, and provides high pressure by main shaft oil filler point for main shaft
Oil is main shaft fuel feeding by Manual high-pressure oil pump, presses high-pressure oil pump lever repeatedly, observes high-pressure oil pump pressure gauge, high pressure oil
Enter main shaft oilhole by main shaft pouring orifice, and establishes oil in main shaft and impeller hub matching surface eventually by annular oil groove
Pressure starts to press hand oil pump, and to establish oil pressure in hydraulic nut, when this pressure reaches when this pressure reaches certain value
When certain value, hydraulic nut piston is pushed and is moved right by oil pressure, is observed dial depth gauge dial reading, is reached designated value
When, stopping presses oil pump compression bar, and pressure maintaining 30 minutes；Unscrew the overflow valve on high pressure hand-operated oil pump later, lay down main shaft with
Oil pressure in impeller hub matching surface；Lay down oil pressure in hydraulic nut, dismantle high-pressure hose and, take out conversion adapter, and will
Locking nut and its locked spacer are mounted in main shaft end face, and which solves double shrouded wheel installation and removal in restricted clearance to ask
Topic makes greatly improving to neutrality for centrifugal impeller and axis, and axial position of the impeller on axis can be accurate by special measurement equipment
Measurement control, in the case where not damaging impeller hub, and it is more firm to install impeller hub, by oil pressure assembly or disassembly
Impeller can reduce the abrasion of impeller hub matching surface, and elastic conjunction is realized by oil pump, both can guarantee installation interference
Amount, and easy to be laborsaving, has greater efficiency, and structure is simple, is easily achieved and saving of work and time.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
In figure: 1- main shaft；2- conversion adapter；3- impeller hub；4- annular oil groove；5- oilhole；6- main shaft pouring orifice；7-
Base stake；8- hydraulic nut piston；9- hydraulic nut；10- hydraulic nut pouring orifice；11- dial depth gauge；12- magnetic power meter
Seat；13- oil valve；The total high-pressure hose of 14-；15- first divides high-pressure hose；16- second divides high-pressure hose；The high pressure hand-operated oil pump of 17-；
18- overflow valve；19- pressure gauge；20- high-pressure oil pump lever；21- Anti-slip cover.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of technical solution: the assembly and disassembly work of double shrouded wheel under a kind of restricted clearance
Dress, including it is main shaft 1, conversion adapter 2, impeller hub 3, annular oil groove 4, oilhole 5, main shaft pouring orifice 6, base stake 7, hydraulic
Nut piston 8, hydraulic nut 9, hydraulic nut pouring orifice 10, dial depth gauge 11, magnetic stand 12, oil valve 13, total high pressure are soft
14, first points of pipe 15, second points of high-pressure hose high-pressure hose 16, high pressure hand-operated oil pump 17, overflow valve 18, pressure gauge 19, high pressure
One end outside of oil pump lever 20 and Anti-slip cover 21, the conversion adapter 2 is connected with hydraulic nut 9, the conversion adapter 2
Other end inner wall be connected with main shaft 1, one end of the hydraulic nut 9 is equipped with hydraulic nut piston 8, and the hydraulic nut is living
The other end of plug 8 is equipped with hydraulic nut pouring orifice 10, and the outside of the main shaft 1 is connected with impeller hub 3, the impeller hub 3
The one end of inner wall far from main shaft 1 is connect with the outside of conversion adapter 2, the hydraulic nut piston 8 far from hydraulic nut 9 one
End is contacted with the end of impeller hub 3, and the top of the hydraulic nut 9 is connected with magnetic stand 12, the magnetic stand 12
Top is equipped with dial depth gauge 11, and the top of the hydraulic nut piston 8 is equipped with base stake 7, the dial depth gauge
11 indicator is contacted with the surface of base stake 7, and the main shaft 1 is located at one end inside conversion adapter 2 equipped with main shaft oiling
Mouth 6, the main shaft 1 is equipped with oilhole 5 close to one end of main shaft pouring orifice 6, and main shaft 1 is located at one end of oilhole 5 equipped with annular oil
One end of slot 4, high pressure hand-operated 17 top of oil pump is equipped with high-pressure oil pump lever 20, is located at the top of the high pressure hand-operated oil pump 17
The outside of high-pressure oil pump lever 20 is equipped with pressure gauge 19, and the high pressure hand-operated oil pump 17 is equipped with excessive close to one end of pressure gauge 19
Valve 18 is flowed, one end that the high pressure hand-operated oil pump 17 is located at overflow valve 18 is connected with total high-pressure hose 14, total high-pressure hose
14 one end far from high pressure hand-operated oil pump 17 form first point of high-pressure hose 15 and second point of high-pressure hose 16, first point of height
The end of pressure hose 15 passes through conversion adapter 2 and connect with main shaft pouring orifice 6, the end of second point of high-pressure hose 16 and liquid
Nut pouring orifice 10 is pressed to connect, the outside of first point of high-pressure hose 15 and second point of high-pressure hose 16 is mounted on oil valve
13。
Closely-pitched external screw thread is equipped on the outside of one end of the conversion adapter 2, the inside of the hydraulic nut 9 is equipped with and closely-pitched
The closely-pitched internal screw thread that external screw thread matches, the conversion adapter 2 are connected through a screw thread with hydraulic nut 9, the conversion adaptation
The other end inner wall of device 2 is equipped with closely-pitched internal screw thread, and the outside of the main shaft 1 is equipped with closely-pitched external screw thread, the conversion adapter 2 with
Main shaft 1 is connected through a screw thread, and restricted clearance inside double shrouded wheel can be produced clearing, convenient for operation.
The high-pressure oil pump lever 20 is equipped with Anti-slip cover 21 far from one end of high pressure hand-operated oil pump 17, prevents from skidding, be convenient for
It uses.
The bottom of the base stake 7 is equipped with external screw thread, and the top of the hydraulic nut piston 8 is equipped with internal screw thread, described
Base stake 7 is connected through a screw thread with hydraulic nut piston 8, easy for removal and installation.
The impeller hub 3 is circular cone interference fit with main shaft 1, after assembling impeller hub 3 and main shaft 1 more to neutrality
It is good, meanwhile, so that matching surface is had certain lubricating action using oil pressure assembly, impeller hub 3 is not easy to grind with 1 matching surface of main shaft
Damage.
Working principle: second point of height is closed when needing to 1 fuel feeding of main shaft by the way that a high pressure hand-operated oil pump 17 is arranged
The oil valve 13 on hose 16 is pressed, overflow valve 18 is opened, so that high pressure hand-operated oil pump 17 is carried out fuel feeding to main shaft 1, when needing to hydraulic
When 9 fuel feeding of nut, the oil valve 13 on first point of high-pressure hose 15 is closed, open overflow valve 18, make high pressure hand-operated oil pump 17 to liquid
9 fuel feeding of nut is pressed, realizes that, respectively to 9 fuel feeding of main shaft 1 and hydraulic nut, hydraulic nut 9 connects using a high pressure hand-operated oil pump 7
In on the external screw thread of conversion adapter 2, high pressure hand-operated oil pump 17 gives 9 fuel feeding of hydraulic nut, liquid by hydraulic nut oil filler point 10
Pressure nut piston 8 is pushed against on impeller hub 3, and oil pressure pushes hydraulic nut piston 8 to move axially, and can push impeller hub 3
It moves axially to the right, magnetic stand 1 is housed on 9 end face of hydraulic nut, dial depth gauge 11 is installed to hydraulic by magnetic stand 1
On nut 9, the abutting of 11 indicator of dial depth gauge is connected through a screw thread the base stake 7 being mounted on hydraulic nut piston 8, works as liquid
When nut piston 8 being pressed to be pushed by the oil pressure in high pressure hand-operated oil pump 17, base stake 7 mounted thereto can also be pushed away together
Dynamic, dial depth gauge 11 can accurately measure the axial displacement of impeller hub 3, and high pressure hand-operated oil pump 17 is soft by first point of high pressure
Pipe 15 is connect with 1 end face of main shaft, and is that main shaft 1 provides high pressure oil by main shaft oil filler point 6, based on high pressure hand-operated oil pump 17
1 fuel feeding of axis presses hand lever 20 repeatedly, observes high-pressure oil pump pressure gauge 19, and high pressure oil enters main shaft by main shaft pouring orifice 6
1 oilhole 5, and oil pressure is established in main shaft 1 and 3 matching surface of impeller hub eventually by annular oil groove 4, when this pressure reaches centainly
When value, start to press high pressure hand-operated oil pump 17, and to establish oil pressure in hydraulic nut 9, it is hydraulic when this pressure reaches certain value
Nut piston 8 is pushed and is moved right by oil pressure, is observed 11 dial reading of dial depth gauge, when reaching designated value, is stopped pressing
Hand lever 20, and pressure maintaining 30 minutes；The overflow valve 18 on high pressure hand-operated oil pump 17 is unscrewed later, lays down main shaft 1 and impeller
Oil pressure in 3 matching surface of wheel hub lays down hydraulic spiral shell, oil pressure in 9, and total high-pressure hose 14 of dismantling takes out conversion adapter 2, and will
Locking nut and its locked spacer are mounted in 1 end face of main shaft.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. the assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance, including main shaft (1), conversion adapter (2), impeller hub (3),
Annular oil groove (4), oilhole (5), main shaft pouring orifice (6), base stake (7), hydraulic nut piston (8), hydraulic nut (9), liquid
Press nut pouring orifice (10), dial depth gauge (11), magnetic stand (12), oil valve (13), total high-pressure hose (14), first point of height
Press hose (15), second point of high-pressure hose (16), high pressure hand-operated oil pump (17), overflow valve (18), pressure gauge (19), high-pressure oil pump
Lever (20) and Anti-slip cover (21), it is characterised in that: hydraulic nut (9) are connected on the outside of one end of the conversion adapter (2),
The other end inner wall of the conversion adapter (2) is connected with main shaft (1), and one end of the hydraulic nut (9) is equipped with hydraulic spiral shell
The other end of female piston (8), the hydraulic nut piston (8) is equipped with hydraulic nut pouring orifice (10), the outside of the main shaft (1)
It is connected with impeller hub (3), connects on the outside of the one end of impeller hub (3) inner wall far from main shaft (1) and conversion adapter (2)
It connects, the hydraulic nut piston (8) contacts far from the one end of hydraulic nut (9) with the end of impeller hub (3), the hydraulic spiral shell
It is connected with magnetic stand (12) at the top of female (9), is equipped with dial depth gauge (11) at the top of the magnetic stand (12), it is described
It is equipped at the top of hydraulic nut piston (8) base stake (7), the indicator of the dial depth gauge (11) and base stake (7)
Surface contact, the main shaft (1) is located at the internal one end of conversion adapter (2) equipped with main shaft pouring orifice (6), the main shaft
(1) one end close to main shaft pouring orifice (6) is equipped with oilhole (5), and main shaft (1) is located at one end of oilhole (5) equipped with annular oil groove
(4), one end at the top of the high pressure hand-operated oil pump (17) is equipped with high-pressure oil pump lever (20), high pressure hand-operated oil pump (17) top
The outside that portion is located at high-pressure oil pump lever (20) is equipped with pressure gauge (19), and the high pressure hand-operated oil pump (17) is close to pressure gauge (19)
One end be equipped with overflow valve (18), it is soft that one end that the high pressure hand-operated oil pump (17) is located at overflow valve (18) is connected with total high pressure
It manages (14), total high-pressure hose (14) forms first point of high-pressure hose (15) and the far from the one end of high pressure hand-operated oil pump (17)
The end of two points of high-pressure hoses (16), first point of high-pressure hose (15) passes through conversion adapter (2) and main shaft pouring orifice (6)
Connection, the end of second point of high-pressure hose (16) are connect with hydraulic nut pouring orifice (10), first point of high-pressure hose
(15) and on the outside of second point of high-pressure hose (16) oil valve (13) are mounted on.
2. the assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance according to claim 1, it is characterised in that: the conversion
Closely-pitched external screw thread is equipped on the outside of one end of adapter (2), the inside of the hydraulic nut (9) is equipped with to be matched with closely-pitched external screw thread
Closely-pitched internal screw thread, the conversion adapter (2) is connected through a screw thread with hydraulic nut (9), the conversion adapter (2) it is another
One end inner wall is equipped with closely-pitched internal screw thread, and the outside of the main shaft (1) is equipped with closely-pitched external screw thread, the conversion adapter (2) and master
Axis (1) is connected through a screw thread.
3. the assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance according to claim 1, it is characterised in that: the high pressure
Oil pump lever (20) is equipped with Anti-slip cover (21) far from the one end of high pressure hand-operated oil pump (17).
4. the assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance according to claim 1, it is characterised in that: the benchmark
The bottom of mark post (7) is equipped with external screw thread, and the top of the hydraulic nut piston (8) is equipped with internal screw thread, the base stake (7) with
Hydraulic nut piston (8) is connected through a screw thread.
5. the assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance according to claim 2, it is characterised in that: the impeller
Wheel hub (3) and main shaft (1) are circular cone interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820857593.7U CN208496878U (en) | 2018-06-05 | 2018-06-05 | The assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820857593.7U CN208496878U (en) | 2018-06-05 | 2018-06-05 | The assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208496878U true CN208496878U (en) | 2019-02-15 |
Family
ID=65287521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820857593.7U Active CN208496878U (en) | 2018-06-05 | 2018-06-05 | The assembly and disassembly tooling of double shrouded wheel under a kind of restricted clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208496878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267039A (en) * | 2020-03-31 | 2020-06-12 | 江苏核电有限公司 | Power station diesel engine onboard cooling water pump impeller dismounting tool and dismounting method |
| CN111590508A (en) * | 2020-06-13 | 2020-08-28 | 中国长江动力集团有限公司 | Hydraulic tool for installing and dismantling impeller |
-
2018
- 2018-06-05 CN CN201820857593.7U patent/CN208496878U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267039A (en) * | 2020-03-31 | 2020-06-12 | 江苏核电有限公司 | Power station diesel engine onboard cooling water pump impeller dismounting tool and dismounting method |
| CN111267039B (en) * | 2020-03-31 | 2024-01-12 | 江苏核电有限公司 | Disassembling tool and disassembling method for power station diesel engine on-board cooling water pump impeller |
| CN111590508A (en) * | 2020-06-13 | 2020-08-28 | 中国长江动力集团有限公司 | Hydraulic tool for installing and dismantling impeller |
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