CN109434374A - The assembly method of compressor adopting conical surface interference cooperation - Google Patents
The assembly method of compressor adopting conical surface interference cooperation Download PDFInfo
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- CN109434374A CN109434374A CN201811546565.4A CN201811546565A CN109434374A CN 109434374 A CN109434374 A CN 109434374A CN 201811546565 A CN201811546565 A CN 201811546565A CN 109434374 A CN109434374 A CN 109434374A
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- hydraulic
- impeller
- transmission shaft
- oil
- screw rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/022—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using pressure fluids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of assembly method of compressor adopting conical surface interference cooperation, and the taper spindle nose of transmission shaft is inserted into the taper hole of impeller, forms impeller and transmission shaft and is interference fitted；Impeller is pressed on transmission shaft by axial pre tightening force, the mating surface that hydraulic oil injects impeller and transmission shaft is formed into oil film by the oil filler point on transmission shaft, while one axial force is applied by the mobile pre-determined distance of the past transmission axis direction of impeller to impeller with hydraulic tool；The hydraulic fluid pressure in oil filler point is unloaded, axial compressive force keeps release again after half an hour, completes elastic conjunction.Assembly method of the invention is to form oil film on the conical surface by mating surface fluid injection pressure oil to reduce frictional force, and cooperate the adopting conical surface interference cooperation assembly to realize impeller and transmission shaft using axial hydraulic tool.
Description
Technical field
The invention belongs to vapour compression machine technical fields, more specifically, are related to a kind of cooperation of compressor adopting conical surface interference
Assembly method.
Background technique
With the fast development of Machine Manufacturing Technology, the pressure of torque is transmitted using the frictional force that adopting conical surface interference cooperation generates
Contracting machine impeller wheel footpath is increasing, and power is also higher and higher；And bigger driving torque is obtained, the magnitude of interference needed is got over
Greatly, assembly difficulty is corresponding also higher.
Existing interference fit process process-intensive, complexity, high production cost under big magnitude of interference assembly demand,
Current large-scale compressor impeller assembly technical requirement is no longer satisfied, needs to be improved.
Summary of the invention
The object of the invention is to provide a kind of assembly method of compressor adopting conical surface interference cooperation, to solve existing interference
Cooperate assembly technique under big magnitude of interference assembly demand the problem of process-intensive, complexity, high production cost.
It is realized the purpose of the present invention is technical solution in this way, a kind of assembly side of compressor adopting conical surface interference cooperation
Method, comprising:
Step S1: impeller is set on transmission shaft using lifting device；
Step S2: successively hydraulic screw rod, screw thread changeover bobbin are screwed on transmission shaft；
Step S3: covering on impeller while screwing hydraulic nut for thrust cylinder, and amesdial is connect with hydraulic nut；
Step S4: two hydraulic pumps are connected with hydraulic screw rod, hydraulic nut respectively；Firstly, being connected with hydraulic nut
The hydraulic pump connect fits closely impeller with transmission shaft for oil feed pressure to hydraulic nut, by thousand after the oil pressure of hydraulic nut is stablized
Divide table zeroing；Then, the hydraulic pump being connected with hydraulic screw rod swells the inner hole of impeller for oil feed pressure to hydraulic screw rod, same with this
When, the hydraulic pump being connected with hydraulic nut, which starts pressurization, fits closely the surface of impeller and transmission shaft always, works as amesdial
Reading stop the hydraulic oil pump feed being connected with hydraulic screw rod and the oil pressure for unloading load hydraulic screw rod, hydraulic nut when reaching setting value
Oil pressure keep three unloading ten minutes later, complete elastic conjunction.
Compared with prior art, the assembly method of compressor adopting conical surface interference cooperation provided by the invention passes through transmission shaft and leaf
The mating surface of wheel injects hydraulic oil, to form oil film on the conical surface to reduce frictional force, and is cooperated using axial hydraulic tool
To realize the adopting conical surface interference cooperation assembly of impeller and transmission shaft.
Detailed description of the invention
By reference to the following description in conjunction with the accompanying drawings and the contents of the claims, and with to it is of the invention more comprehensively
Understand, other objects and results of the present invention will be more clearly understood and understood.In the accompanying drawings:
Fig. 1 is the assembling structure schematic diagram cooperated according to the compressor adopting conical surface interference of the embodiment of the present invention.
Appended drawing reference therein includes: 1- impeller, 2- amesdial, the hydraulic screw rod of 3-, 4- screw thread changeover bobbin, the hydraulic spiral shell of 5-
Female, 6- thrust cylinder, 7- transmission shaft.
Identical label indicates similar or corresponding feature or function in all the appended drawings.
Specific embodiment
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is the assembling structure cooperated according to the compressor adopting conical surface interference of the embodiment of the present invention.
As shown in Figure 1, the assembly method that the compressor adopting conical surface interference of the embodiment of the present invention cooperates, comprising:
Step S1: impeller 1 is set on transmission shaft 7 using lifting device.
During impeller 1 is set on transmission shaft 7, the taper spindle nose of transmission shaft 7 is inserted into the taper hole of impeller 1,
Impeller 1 and transmission shaft 7 is formed to be interference fitted.
One section of helicla flute is begun on transmission shaft 7 and oil filler point, helicla flute are connected with oil filler point, when impeller 1 and transmission
Axis 7 forms seal chamber after fitting closely.
Step S2: successively hydraulic screw rod 3, screw thread changeover bobbin 4 are screwed on transmission shaft 7.
Hydraulic screw rod 3 is carried out with transmission shaft 7 by the taper of taper and 7 bottom of thread of transmission shaft at the top of screw flight close
Envelope.
Hydraulic screw rod 3 is connected to the oil filler point of transmission shaft 7, for the threaded hole on transmission shaft 7 to be converted to high-pressure oil pipe
Modular connection and the seal chamber transmitting hydraulic oil formed for impeller 1 and transmission shaft 7, cooperation of the hydraulic oil in impeller 1 and transmission shaft 7
Face forms oil film, injects hydraulic oil by mating surface and forms oil film on the conical surface to reduce the frictional force of the conical surface.
Screw thread changeover bobbin 4 plays the role of two, and the external screw thread on transmission shaft 7 is converted to and matches with hydraulic nut 5 by one
External screw thread, second is that the use for hydraulic nut 5 provides enough use spaces.
Step S3: hydraulic nut 5 is screwed simultaneously on impeller 1 by 6 sets of thrust cylinder, amesdial 2 and hydraulic nut 5 are connected
It connects.
Amesdial 2 guarantees indirectly for guaranteeing accuracy of the impeller 1 relative to the initial position moving distance of transmission shaft 7
The magnitude of interference of impeller 1 and transmission shaft 7.
The hydraulic conversion that hydraulic nut 5 is used to provide hydraulic pump is that axial force pushes impeller 1 to move simultaneously on transmission shaft 7
Guarantee that impeller 1 and transmission shaft 7 can form a seal chamber always.
Thrust cylinder 6 is as an auxiliary mould for axially extending 1 stress surface of impeller, convenient for the use of locking nut 5.
Step S4: two hydraulic pumps are connected with hydraulic screw rod 3, hydraulic nut 5 respectively；Firstly, with 5 phase of hydraulic nut
The hydraulic pump of connection makes impeller 1 and transmission shaft 7 fit closely to form seal chamber to hydraulic nut 5 for oil feed pressure, to hydraulic nut 5
Oil pressure stablize after amesdial 2 is returned to zero；Then, the hydraulic pump being connected with hydraulic screw rod 3 is to hydraulic screw rod 3 for oil feed pressure by leaf
The inner hole of wheel 1 swells, and at the same time, the hydraulic pump being connected with hydraulic nut 5, which starts pressurization, makes the table of impeller 1 Yu transmission shaft 7
Face fits closely always, when the reading of amesdial 2 reaches setting value S, stops the hydraulic oil pump feed being connected with hydraulic screw rod 3 simultaneously
The oil pressure of load hydraulic screw rod 3 is unloaded, the oil pressure of hydraulic nut 5 keeps three to unload ten minutes later, completes elastic conjunction.
The hydraulic action that the hydraulic pump being connected with hydraulic screw rod 3 is provided is on the inner hole of impeller 1, it is intended that making leaf
The inner hole of wheel 1 swells convenient for assembly.
The process of disassembling fixture and the process of assembly tooling are on the contrary, be the inverse process of assembly tooling.
More than, only a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (1)
1. a kind of assembly method of compressor adopting conical surface interference cooperation, comprising:
Step S1: impeller is set on transmission shaft using lifting device；
Step S2: successively hydraulic screw rod, screw thread changeover bobbin are screwed on the transmission shaft；
Step S3: covering on the impeller while screwing hydraulic nut for thrust cylinder, and amesdial is connect with the hydraulic nut；
Step S4: two hydraulic pumps are connected with the hydraulic screw rod, the hydraulic nut respectively；Firstly, with described hydraulic
The hydraulic pump that nut is connected fits closely the impeller with the transmission shaft for oil feed pressure to the hydraulic nut, to described
The oil pressure of hydraulic nut returns to zero the amesdial after stablizing；Then, the hydraulic pump being connected with the hydraulic screw rod is to the liquid
Pressure screw rod swells the inner hole of the impeller for oil feed pressure, and at the same time, the hydraulic pump being connected with the hydraulic nut starts
Pressurization fit closely the impeller and the surface of the transmission shaft always, when the reading of amesdial reaches setting value stop and
The connected hydraulic oil pump feed of the hydraulic screw rod and the oil pressure for unloading the hydraulic screw rod, the oil pressure of the hydraulic nut keep three
It unloads ten minutes later, completes elastic conjunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546565.4A CN109434374B (en) | 2018-12-18 | 2018-12-18 | Assembling method for compressor conical surface interference fit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546565.4A CN109434374B (en) | 2018-12-18 | 2018-12-18 | Assembling method for compressor conical surface interference fit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109434374A true CN109434374A (en) | 2019-03-08 |
| CN109434374B CN109434374B (en) | 2020-11-27 |
Family
ID=65560165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811546565.4A Active CN109434374B (en) | 2018-12-18 | 2018-12-18 | Assembling method for compressor conical surface interference fit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109434374B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114378528A (en) * | 2021-12-10 | 2022-04-22 | 陕西航天机电环境工程设计院有限责任公司 | Direct current motor and gear assembly system, method and gear for bullet train and high-speed rail |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3061342A (en) * | 1961-01-24 | 1962-10-30 | Allis Chalmers Mfg Co | Locking and removal device for impellers |
| EP2256347A1 (en) * | 2009-05-26 | 2010-12-01 | Siemens Aktiengesellschaft | Rotating machine and method of assembly thereof |
| CN201895201U (en) * | 2010-12-03 | 2011-07-13 | 常州朗锐东洋传动技术有限公司 | Mounting device for shaft coupling adopting conical surface interference connection |
| CN103161754A (en) * | 2011-12-15 | 2013-06-19 | 重庆江增船舶重工有限公司 | Impeller structure and assembling method thereof |
| CN203003464U (en) * | 2012-12-31 | 2013-06-19 | 西安科技大学 | Combined hydraulic fastening device |
| CN206493098U (en) * | 2017-02-27 | 2017-09-15 | 展翔海事(大连)有限责任公司 | A kind of dry hydraulic mounting tool for having a key propeller |
-
2018
- 2018-12-18 CN CN201811546565.4A patent/CN109434374B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114378528A (en) * | 2021-12-10 | 2022-04-22 | 陕西航天机电环境工程设计院有限责任公司 | Direct current motor and gear assembly system, method and gear for bullet train and high-speed rail |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109434374B (en) | 2020-11-27 |
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