CN105290710B - The assembly method of combination wedge key in a kind of keyway - Google Patents
The assembly method of combination wedge key in a kind of keyway Download PDFInfo
- Publication number
- CN105290710B CN105290710B CN201510749952.8A CN201510749952A CN105290710B CN 105290710 B CN105290710 B CN 105290710B CN 201510749952 A CN201510749952 A CN 201510749952A CN 105290710 B CN105290710 B CN 105290710B
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- China
- Prior art keywords
- wedge key
- shaft coupling
- keyway
- axle
- wedge
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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
- B23P11/025—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 heat or cold
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides the assembly method that wedge key is combined in a kind of keyway, shaft coupling is first heated；Axle is vertically fixed, the shaft coupling after heating and axle are assembled；The wedge key sample processed in advance is installed in the keyway between shaft coupling and axle, conjunction fixed shaft coupling, wedge key sample and axle by pressing plate；The bottom of shaft coupling is blown with electric fan, makes shaft coupling fast cooling, after shaft coupling is cooled to room temperature, the gap between wedge key sample and shaft coupling keyway is measured, then takes out wedge key sample；According to the size of wedge key sample and measured gap size, repair wedge key is processed, wedge key size reserves the magnitude of interference during processing；Wedge key is put into liquid nitrogen and cooled down；Wedge key after cooling is installed in keyway and by two wedge key spot welding.The present invention makes to produce certain magnitude of interference between wedge key and keyway after assembling, avoids the abrasion caused by make without the magnitude of interference between wedge key and keyway in motion process, effectively extends the service life of shaft coupling and axle.
Description
Technical field
The present invention relates to a kind of assembly method of combination wedge key in Automatic manual transmission technique, more particularly to keyway.
Background technology
It is related to the technique of the built-in combo jib and cotter key of keyway in the prior art, the method generally taken is：1) first by shaft coupling
Heating.2) shaft coupling is assembled with axle.3) will combination wedge key be installed to in the keyway on shaft coupling.4) detected and joined with clearance gauge
The gap of keyway and key on axle device.5) by detection data, repair key.6) wedge key and the key on axle and shaft coupling will be combined again
Groove installation is simultaneously urgent.Such assembly method, make combination wedge key with keyway for without magnitude of interference assembling.Generally, after using half a year, group
Just there is gap with the stress surface of keyway two in the stress surface of jib and cotter key two, is unfavorable for transmitting torque, adds the keyway on shaft coupling and axle
It is fast damaged, cause shaft coupling and axle to be continuing with.
The content of the invention
The invention provides the assembly method for combining wedge key in a kind of keyway, make to produce certain mistake between wedge key and keyway
The amount of being full of, so as to reduce the abrasion of shaft coupling and keyway on axle, effectively extend the service life of shaft coupling and axle.
To achieve the above object, the present invention is realized using following technical scheme：
The assembly method of combination wedge key, specific method step are as follows in a kind of keyway：
1) shaft coupling is heated；
2) axle is vertically fixed, the shaft coupling after heating and axle is assembled；
3) the wedge key sample processed in advance is installed in the keyway between shaft coupling and axle, by pressing plate by shaft coupling,
Wedge key sample and axle fix conjunction；
4) bottom of shaft coupling is blown with electric fan, measures shaft coupling fast cooling, after shaft coupling is cooled to room temperature
Gap between wedge key sample and shaft coupling keyway, then whole workpiece side is put, pressing plate is pulled down, and wedge key sample is taken out；
5) repaiied according to the size in gap between the size of wedge key sample and measured wedge key sample and shaft coupling keyway, processing
With wedge key, wedge key size reserves the 0.03mm~0.05mm magnitude of interference during processing；
6) wedge key is put into liquid nitrogen and cooled down；
7) wedge key after cooling is installed in keyway, by spot welding between two wedge keys after wedge key returns to room temperature.
Compared with prior art, the beneficial effects of the invention are as follows：
The assembly method of combination wedge key, can make to produce certain mistake between wedge key and keyway after assembling in a kind of keyway
The amount of being full of, the abrasion caused by make without the magnitude of interference between wedge key and keyway in motion process can be avoided, so as to reduce shaft coupling
The breakage of device and keyway on axle, effectively extend the service life of shaft coupling and axle.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of shaft coupling and axle in step 2 of the present invention；
Fig. 2 is Fig. 1 top view；
Fig. 3 is wedge key sample and shaft coupling, the assembling schematic diagram of axle in step 3 of the present invention；
Fig. 4 is Fig. 3 top view；
Fig. 5 is the conjunction working condition that electricity consumption fan coolling cools after fixed to be shown shaft coupling, wedge key sample and axle with pressing plate
It is intended to；
Fig. 6 is the top view with pressing plate by shaft coupling, wedge key sample and axle conjunction fixation in Fig. 5；
Fig. 7 is the schematic diagram for measuring gap between wedge key sample and shaft coupling keyway；
Fig. 8 is the end view drawing that two wedge keys after repair are assembled together；
Fig. 9 is the working state schematic representation being put into wedge key in liquid nitrogen；
Figure 10 is the structural representation being eventually assembled into wedge key in keyway；
In figure：1. the electric fan 9. of 7. liquid nitrogen of shaft coupling 2. keyway, 3. axle, 4. wedge key sample, 5. bolt, 6. pressing plate 8.
Weld the wedge key of meat 10.
Embodiment
The embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings：
As Figure 1-10 shows, the assembly method of wedge key is combined in a kind of keyway, specific method step is as follows：
1) shaft coupling 1 is heated, heating-up temperature is 250 DEG C~300 DEG C, preferably 270 DEG C；
2) axle 3 is vertically fixed, the shaft coupling 1 after heating is assembled with axle 3；
3) the wedge key sample 4 processed in advance is installed in the keyway 2 between shaft coupling 1 and axle 3, will be joined by pressing plate 6
Axle device 1, wedge key sample 4 and axle 3 fix conjunction；
4) bottom of shaft coupling 1 is blown with electric fan 8, makes the fast cooling of shaft coupling 1, after shaft coupling 1 is cooled to room temperature, is used
Clearance gauge measures gap size X1, X2 between wedge key sample 4 and the keyway of shaft coupling 1；Then whole workpiece side is put, pressing plate 6
Pull down, and wedge key sample 4 is taken out；
The bottom of shaft coupling 1 is blown with electric fan 8, shaft coupling 1 is quickly cooled, it is ensured that measures the accurate of size
Property, while the gap between shaft coupling 1 and the end face of axle 3 can be reduced, improve assembly precision.
5) according to the size X1 in gap between the size of wedge key sample 4 and measured wedge key sample 4 and the keyway of shaft coupling 1,
X2, processing repair wedge key 10, the size of wedge key 10 will reserve the 0.03mm~0.05mm magnitude of interference during processing；
6) wedge key 10 is put into cooling 2h~5h in liquid nitrogen 7；
7) wedge key 10 after cooling is installed in keyway 2, by point between two wedge keys 10 after wedge key 10 returns to room temperature
Weldering.
Claims (1)
1. the assembly method of combination wedge key in a kind of keyway, it is characterised in that make to produce certain interference between wedge key and keyway
Amount, so as to reduce the abrasion of shaft coupling and keyway on axle, specific method step is as follows：
1) shaft coupling is heated；
2) axle is vertically fixed, the shaft coupling after heating and axle is assembled；
3) the wedge key sample processed in advance is installed in the keyway between shaft coupling and axle, by pressing plate by shaft coupling, wedge key
Sample and axle fix conjunction；
4) bottom of shaft coupling is blown with electric fan, makes shaft coupling fast cooling, after shaft coupling is cooled to room temperature, measure wedge key
Gap between sample and shaft coupling keyway, then whole workpiece side is put, pressing plate is pulled down, and wedge key sample is taken out；
5) according to the size in gap between the size of wedge key sample and measured wedge key sample and shaft coupling keyway, repair wedge is processed
Key, wedge key size reserves the 0.03mm~0.05mm magnitude of interference during processing；
6) wedge key is put into liquid nitrogen and cooled down；
7) wedge key after cooling is installed in keyway, by spot welding between two wedge keys after wedge key returns to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510749952.8A CN105290710B (en) | 2015-11-06 | 2015-11-06 | The assembly method of combination wedge key in a kind of keyway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510749952.8A CN105290710B (en) | 2015-11-06 | 2015-11-06 | The assembly method of combination wedge key in a kind of keyway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105290710A CN105290710A (en) | 2016-02-03 |
| CN105290710B true CN105290710B (en) | 2017-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510749952.8A Active CN105290710B (en) | 2015-11-06 | 2015-11-06 | The assembly method of combination wedge key in a kind of keyway |
Country Status (1)
| Country | Link |
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| CN (1) | CN105290710B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738497A (en) * | 2017-03-14 | 2017-05-31 | 青岛金科模具有限公司 | Pattern block and tire-mold |
| CN112605607B (en) * | 2020-11-17 | 2022-11-01 | 贵州高峰石油机械股份有限公司 | Method for accurately positioning cylindrical spline and preventing welding cracks |
| CN114012382B (en) * | 2021-11-11 | 2024-02-13 | 哈尔滨电机厂有限责任公司 | Technological method for repairing wedge-shaped key steps of rotor coupler of steam turbine generator |
| CN114055111B (en) * | 2021-11-11 | 2024-01-19 | 哈尔滨电机厂有限责任公司 | Large-sized steam turbine generator rotor coupler assembly process method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363862B (en) * | 2012-03-31 | 2017-04-12 | 高世勋 | Testing method for keyway dimension of tangential key |
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2015
- 2015-11-06 CN CN201510749952.8A patent/CN105290710B/en active Active
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| Publication number | Publication date |
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| CN105290710A (en) | 2016-02-03 |
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