CN103056593A - Assembling method of large coupler - Google Patents
Assembling method of large coupler Download PDFInfo
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- CN103056593A CN103056593A CN2012105461630A CN201210546163A CN103056593A CN 103056593 A CN103056593 A CN 103056593A CN 2012105461630 A CN2012105461630 A CN 2012105461630A CN 201210546163 A CN201210546163 A CN 201210546163A CN 103056593 A CN103056593 A CN 103056593A
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- Prior art keywords
- shaft coupling
- coupler
- auxiliary stand
- hole
- transmission shaft
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Abstract
The invention discloses an assembling method of a large coupler. According to the method, firstly, the interior of the coupler is baked and heated; when the interior of the coupler is heated to a preset temperature, the coupler is turned by a pre-prepared lifting tool to enable a hole to be in a horizontal state so that the coupler can be rapidly lifted to a transmission shaft to be assembled, the position of the coupler is adjusted to be aligned to the transmission shaft, and the coupler is moved towards the direction of the transmission shaft and cooled when moved to the root of a shaft neck of the transmission shaft. According to the assembling method, the transmission shaft and the coupler are assembled in a horizontal state, construction difficulty is reduced, the construction period is shortened as much as possible, the large interference fit dimension and the installation process of the large transmission shaft and the coupler can be well controlled, a connection surface of the transmission shaft and the coupler is prevented from being damaged, and connection qualities are guaranteed.
Description
Technical field
The present invention relates to heavy mechanical equipment assembling field, especially a kind of assembly method of large-scale shaft coupling are installed.
Background technology
In the rolling line production process, large-scale rolling equipment actuator beairng is easy to wear to be needed to change, and is to save cost, guarantees again the continuity of producing simultaneously, and manufacturer often can select local replacing to damage shaft coupling.Owing to select interference fit between most large-scale power transmission shaft and the shaft coupling, ordinary circumstance is to return factory to install, if the Electric heating that field by using is traditional is installed, cost is higher, and in heating process, the electrical heating crawler belt very easily damages, and is consuming time more, and therefore a kind of new large-scale shaft coupling assembly method need to be provided.
Summary of the invention
The technical problem to be solved in the present invention is for the medium-and-large-sized shaft coupling assembled in situ of prior art cost higher, fragile electrical heating crawler belt, and many defectives consuming time provide that a kind of speed of application is fast, simple to operate, cost is low and guarantee the assembly method of the large-scale shaft coupling of construction quality.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of assembly method of large-scale shaft coupling is provided, it is characterized in that, may further comprise the steps:
1) makes a heating auxiliary stand, auxiliary stand lateral opening hole;
2) kitchen range of gas range is put into auxiliary stand by the hole of auxiliary stand bottom;
3) hang an end of shaft coupling with driving a vehicle, make the hole in the vertical direction of shaft coupling, then place it on the auxiliary stand, the hole of shaft coupling is placed above the kitchen range of gas range;
4) will be installed in shaft coupling inside according to the deflector that the shaft coupling internal diameter size is made;
5) at the shaft coupling top cover plate is set, and on the cover board perforate is used as observing;
6) wrap insulation material on the surface of shaft coupling, and with the regulating handle of gas range air inlet pipe be mixed into the air port with insulation material and heating space isolation, and with the interior thermal insulation protection that also carries out on every side of the inner underframe of auxiliary stand;
7) turn on the gas-fire, to shaft coupling inside Baking out;
8) after being heated to preset temperature, after the aperture of shaft coupling reaches preset length, stopped heating, with the preprepared suspender shaft coupling is overturn, make the hole become level, it is winched to fast by dress power transmission shaft position, adjust the position of shaft coupling, after aligning with power transmission shaft, shaft coupling is moved toward the power transmission shaft direction, cool off after moving on to the axle journal root;
Through after the above-mentioned steps, finished the assembly work of large-scale shaft coupling.
In the assembly method of the present invention, described deflector is provided with uniform hole, makes heat energy form backflow in shaft coupling, and shaft coupling is heated evenly.
In the assembly method of the present invention, the shaft coupling heating-up temperature is calculated by following formula according to shaft coupling size and material:
Computing formula: T=2 * Y/a * d+t
Wherein, T is temperature required for heating, and d is the shaft coupling fit dimension, and a heater wire coefficient of expansion, Y are average actual measurement interference; T is room temperature.
In the assembly method of the present invention, specifically hang up two chain blocks by the both sides at shaft coupling in the step 8), shaft coupling is moved toward the power transmission shaft direction.
In the assembly method of the present invention, two relative sides of described auxiliary stand all have rectangular opening, by rectangular opening the kitchen range of two gas ranges are placed the below in the hole of shaft coupling, so that the shaft coupling thermally equivalent.
Said method also can be in dismounting, assembling or the middle application that more changes jobs of the whole transmission device of large-scale rolling equipment.
The beneficial effect that the present invention produces is: heat internally shaft coupling by coal gas, make heat disturbance by deflector, better guaranteed the uniformity of being heated; Because gas price is cheap, and source of the gas is generally arranged on construction ground, and is cost-saved; By under the level power transmission shaft and shaft coupling being assembled, reduced difficulty of construction, shortened the construction period as far as possible, can control better the larger large-scale power transmission shaft of interference and fit dimension and the installation process between the shaft coupling, guarantee that joint face between the two is injury-free, thereby guarantee quality of connection.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is embodiment of the invention shaft coupling heating schematic diagram;
Fig. 2 A is the top view that auxiliary stand is used in embodiment of the invention heating;
Fig. 2 B is the front view that auxiliary stand is used in embodiment of the invention heating;
Fig. 2 C is the left view that auxiliary stand is used in embodiment of the invention heating.
Among the figure: the 1-shaft coupling; The 2-insulation material; The 3-deflector; The kitchen range of 4-gas range; The 5-auxiliary stand; 6, insulation material; The 7-gas-jar; The 8-valve.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The assembly method of the large-scale shaft coupling of the embodiment of the invention may further comprise the steps:
Step S1. makes heating auxiliary stand 5, auxiliary stand 5 lateral opening holes;
In one embodiment of the present of invention, all have rectangular opening in two relative sides of auxiliary stand 5, by rectangular opening the kitchen range 4 of two gas ranges is placed the below in the hole of shaft coupling, so that the shaft coupling thermally equivalent.
In the preferred embodiment of the present invention, with 1100 * 1100mm bottom framework of 30# channel-section steel self-control, namely auxiliary stand 5, shown in Fig. 2 A, 2B and 2C, are respectively top view, front view and the left view of auxiliary stand 5.Shaft coupling is placed on above the auxiliary stand 5, and the symmetrical both sides of underframe respectively have two rectangular openings that can put into the gas range kitchen range, the kitchen range of two gas ranges can be put in the frame from the outside, bottom, over against the center of coupler hole.
Step S2. puts into auxiliary stand 5 with the kitchen range 4 of gas range by the hole of heating auxiliary stand 5 bottoms;
Step S3. hangs an end of shaft coupling with driving, makes the hole in the vertical direction of shaft coupling, then places it on the auxiliary stand 5, makes the hole of shaft coupling place kitchen range 4 tops of gas range;
Step S4. will be installed in shaft coupling inside according to the deflector 3 that the shaft coupling internal diameter size is made; In one embodiment of the invention, can above two kitchen ranges, the deflector 3 that diameter is slightly less than coupler hole be set the 400mm place, can uniform hole be set at deflector 3, make heat energy in shaft coupling, form backflow, make the shaft coupling thermally equivalent.
Step S5. arranges cover plate at the shaft coupling top, and on the cover board perforate is as observing use, as observing the flame size of gas range;
Step S6. wraps insulation material 2 on the surface of shaft coupling, and the available iron wire bundle fastens solid; And with the regulating handle of gas range air inlet pipe insulation material 6 and heating space isolation; And thermal insulation protection will be carried out also around auxiliary stand 5 inner underframes interior;
The step S7. bottle 7 that turns on the gas-fire, and open the valve 8 of kitchen range, to shaft coupling inside Baking out;
Step S8. is after being heated to preset temperature, after the aperture of shaft coupling reaches preset length (in one embodiment of the present of invention, measure the aperture of shaft coupling in the heating process, can use the sample bar of making in advance, to be convenient for measuring), stopped heating, with the preprepared suspender shaft coupling is overturn, make the hole of shaft coupling become level, it is winched to fast by dress power transmission shaft position, adjust the position of shaft coupling, after aligning with power transmission shaft, shaft coupling is moved toward the power transmission shaft direction, cool off after moving on to the relevant position; In one embodiment of the invention, specifically hang up two chain blocks that can spur 2 tons of weights by the both sides at shaft coupling, shaft coupling is moved until arrive the axle journal root of power transmission shaft toward the power transmission shaft direction, after preferably waiting the shaft coupling cooling, after connecting into integral body with power transmission shaft, unclamp again chain block.
Through after the above-mentioned steps, finished the assembly work of large-scale shaft coupling.
In the embodiment of the invention, the shaft coupling heating-up temperature is calculated by following formula according to shaft coupling size and material:
Computing formula: T=2 * Y/a * d+t
Wherein, T is temperature required for heating, and d is the shaft coupling fit dimension, and a heater wire coefficient of expansion, Y are average actual measurement interference; T is room temperature.
In the embodiment of the invention, shaft coupling fit dimension d=688mm, heater wire coefficient of expansion a=11 * 10
-6,Average actual measurement interference Y=0.38, room temperature t=25C °, cooperate the h6/H7 tolerance range as can be known according to this specification hole of drawing with axle, maximum interference is 0.38, heats temperature required: T=2 * Y/a * d+t
=2×0.38/11×10
-6×688+25=125C°
Consider the thermal losses of shaft coupling in hoisting process, heating-up temperature can be set as 150C °.
Method provided by the invention also can be in dismounting, assembling or the middle application that more changes jobs of the whole transmission device of other large-scale rolling equipments.
The present invention heats shaft coupling internally by coal gas, makes heat disturbance by deflector, has better guaranteed the uniformity of being heated; Because gas price is cheap, and source of the gas is generally arranged on construction ground, and is cost-saved; By under the level power transmission shaft and shaft coupling being assembled, reduced difficulty of construction, shortened the construction period as far as possible, can control better the larger large-scale power transmission shaft of interference and fit dimension and the installation process between the shaft coupling, guarantee that joint face between the two is injury-free, thereby guarantee quality of connection.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (6)
1. the assembly method of a large-scale shaft coupling is characterized in that, may further comprise the steps:
1) makes a heating auxiliary stand, auxiliary stand lateral opening hole;
2) kitchen range of gas range is put into auxiliary stand by the hole of auxiliary stand bottom;
3) hang an end of shaft coupling with driving a vehicle, make the hole in the vertical direction of shaft coupling, then place it on the auxiliary stand, the hole of shaft coupling is placed above the kitchen range of gas range;
4) will be installed in shaft coupling inside according to the deflector that the shaft coupling internal diameter size is made;
5) at the shaft coupling top cover plate is set, and on the cover board perforate is used as observing;
6) wrap insulation material on the surface of shaft coupling, and with the regulating handle of gas range air inlet pipe be mixed into the air port with insulation material and heating space isolation, and with the interior thermal insulation protection that also carries out on every side of the inner underframe of auxiliary stand;
7) turn on the gas-fire, to shaft coupling inside Baking out;
8) after being heated to preset temperature, after the aperture of shaft coupling reaches preset length, stopped heating, with the preprepared suspender shaft coupling is overturn, make the hole become level, it is winched to fast by dress power transmission shaft position, adjust the position of shaft coupling, after aligning with power transmission shaft, shaft coupling is moved toward the power transmission shaft direction, cool off after moving on to the axle journal root;
Through after the above-mentioned steps, finished the assembly work of large-scale shaft coupling.
2. assembly method according to claim 1 is characterized in that, described deflector is provided with uniform hole, makes heat energy form backflow in shaft coupling, and shaft coupling is heated evenly.
3. assembly method according to claim 1 is characterized in that, the shaft coupling heating-up temperature is calculated by following formula according to shaft coupling size and material:
Computing formula: T=2 * Y/a * d+ t
Wherein, T is temperature required for heating, and d is the shaft coupling fit dimension, and a heater wire coefficient of expansion, Y are average actual measurement interference; T is room temperature.
4. assembly method according to claim 1 is characterized in that, specifically hangs up two chain blocks by the both sides at shaft coupling in the step 8), and shaft coupling is moved toward the power transmission shaft direction.
5. assembly method according to claim 1 is characterized in that, two relative sides of described auxiliary stand all have rectangular opening, by rectangular opening the kitchen range of two gas ranges is placed the below in the hole of shaft coupling, so that the shaft coupling thermally equivalent.
6. the purposes of the described method of each claim among the claim 1-5 is characterized in that, described method is in dismounting, the assembling of the whole transmission device of large-scale rolling equipment or the application in more changing jobs.
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CN201210546163.0A CN103056593B (en) | 2012-12-14 | 2012-12-14 | The assembly method of large-scale shaft coupling |
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CN201210546163.0A CN103056593B (en) | 2012-12-14 | 2012-12-14 | The assembly method of large-scale shaft coupling |
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CN103056593B CN103056593B (en) | 2015-12-23 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104227318A (en) * | 2013-06-12 | 2014-12-24 | 镇江兴达联轴器有限公司 | Replacing method of large-scale shaft coupler |
CN104625569A (en) * | 2014-12-10 | 2015-05-20 | 镇江市远程传动机械有限责任公司 | Hot sleeving assembly method for coupler |
CN104632914A (en) * | 2014-12-10 | 2015-05-20 | 镇江市远程传动机械有限责任公司 | Coupler assembling method |
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US5598622A (en) * | 1994-02-18 | 1997-02-04 | Applied Materials, Inc. | Temperature clamping method for anti-contamination and collimating devices for thin film processes |
CN101804555A (en) * | 2010-04-27 | 2010-08-18 | 武汉一冶机电工程有限责任公司 | Method for disassembling, assembling and replacing large interference-fit shaft coupler |
CN101920431A (en) * | 2010-09-28 | 2010-12-22 | 中冶建工有限公司 | Method and device for hot assembling large-diameter bearing |
CN202018231U (en) * | 2011-04-26 | 2011-10-26 | 佛山市顺德区金舵空调冷冻设备有限公司 | Integral spiral baffle plate |
CN202522065U (en) * | 2012-01-10 | 2012-11-07 | 谷神生物科技集团有限公司 | Multifunctional temperature adjustable digital electric heater |
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2012
- 2012-12-14 CN CN201210546163.0A patent/CN103056593B/en active Active
Patent Citations (5)
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US5598622A (en) * | 1994-02-18 | 1997-02-04 | Applied Materials, Inc. | Temperature clamping method for anti-contamination and collimating devices for thin film processes |
CN101804555A (en) * | 2010-04-27 | 2010-08-18 | 武汉一冶机电工程有限责任公司 | Method for disassembling, assembling and replacing large interference-fit shaft coupler |
CN101920431A (en) * | 2010-09-28 | 2010-12-22 | 中冶建工有限公司 | Method and device for hot assembling large-diameter bearing |
CN202018231U (en) * | 2011-04-26 | 2011-10-26 | 佛山市顺德区金舵空调冷冻设备有限公司 | Integral spiral baffle plate |
CN202522065U (en) * | 2012-01-10 | 2012-11-07 | 谷神生物科技集团有限公司 | Multifunctional temperature adjustable digital electric heater |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104227318A (en) * | 2013-06-12 | 2014-12-24 | 镇江兴达联轴器有限公司 | Replacing method of large-scale shaft coupler |
CN104625569A (en) * | 2014-12-10 | 2015-05-20 | 镇江市远程传动机械有限责任公司 | Hot sleeving assembly method for coupler |
CN104632914A (en) * | 2014-12-10 | 2015-05-20 | 镇江市远程传动机械有限责任公司 | Coupler assembling method |
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