CN114369712A - Induction heating method for bearing chamber - Google Patents
Induction heating method for bearing chamber Download PDFInfo
- Publication number
- CN114369712A CN114369712A CN202111477323.6A CN202111477323A CN114369712A CN 114369712 A CN114369712 A CN 114369712A CN 202111477323 A CN202111477323 A CN 202111477323A CN 114369712 A CN114369712 A CN 114369712A
- Authority
- CN
- China
- Prior art keywords
- induction coil
- handle
- induction heating
- end cover
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000006698 induction Effects 0.000 title claims abstract description 63
- 238000010438 heat treatment Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Induction Heating (AREA)
Abstract
The invention relates to a bearing chamber induction heating method, and provides a bearing chamber induction heating device which comprises an induction coil, wherein the induction coil is wound on a support plate, the support plate wound with the induction coil is placed in the inner space of a bearing chamber end cover, an external medium-frequency alternating power supply is connected with the induction coil, and the bearing chamber end cover is heated and heated by utilizing electromagnetic induction. The induction heating mode is adopted to carry out electromagnetic induction heating on the interior of the end cover of the bearing chamber, so that the heating can be conveniently and efficiently carried out rapidly, and the subsequent bearing hot jacket installation is facilitated.
Description
Technical Field
The invention relates to a rolling bearing installation device, in particular to an induction heating method for a bearing chamber.
Background
The rolling bearing has three common mounting methods, namely a hot sleeve method, a cold pressing method and a knocking-in method, according to different structural types, sizes and matching properties of the bearing. The hot sleeve method is suitable for large and medium-sized bearings with large interference magnitude, three methods of oil heating, induction heating and oven heating are generally adopted, and corresponding tool equipment is required to be provided for heating the bearing or the bearing assembly; the cold pressing method is that a press (mechanical or hydraulic) is used for stably pressing the bearing on a shaft or in a bearing chamber at normal temperature, a special press is needed for pressing, and the press is not suitable for pressing the bearing with large interference; the knock-in method is a method of knocking the bearing inner ring with a copper hammer at normal temperature to mount the bearing on the shaft or in the bearing chamber, and this method is not very accurate in mounting and is likely to damage the bearing.
When the end cover is large in size, soft in material (such as aluminum alloy), large in interference between the bearing chamber and the bearing and the like, the bearing is installed on the end cover, and a hot sleeve method (or a heating and cold pressing method) is suitable for being adopted. If the heating condition of the end cover is not satisfied, new equipment needs to be purchased, the cost is relatively high, and the time period is long. In the prior art, the existing process for heating the end cover of the bearing chamber generally adopts oven heating, and the operation method comprises the following steps: 1) horizontally placing the prepared end cover on a partition plate of the oven; 2) after the heating temperature of the end cover is set on a control panel of the oven, the end cover is heated; 3) and when the temperature of the oven reaches the set temperature, preserving the heat for a period of time, and taking out the end cover for the next operation. The oven is adopted to heat the end cover, although the stability is good, the following disadvantages are also existed: 1) the end cover has relatively long heating time and low operation efficiency; 2) the large working place is occupied, and the field operation is not convenient to change; 3) the end cover is inconvenient to enter and exit the oven and needs at least two persons to work in a matching way; 4) when the overall dimension of the end cover is larger, the size of the end cover is easily limited by the dimension of the inner cavity of the oven; 5) the oven adopts the integral heating of the end cover, and the energy consumption is relatively high.
Therefore, it is important to provide an induction heating method for a bearing chamber, which has high efficiency and simple operation.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the bearing chamber induction heating device comprises an induction coil, wherein the induction coil is wound on a support plate, the support plate wound with the induction coil is placed in the inner space of an end cover of the bearing chamber, an external medium-frequency alternating power supply is connected for the induction coil, and the end cover of the bearing chamber is heated and heated by utilizing electromagnetic induction.
Furthermore, the induction coil is provided with a leading-out end externally connected with the medium-frequency alternating power supply, and the external medium-frequency alternating power supply provides medium-frequency alternating current for the induction coil through the leading-out end.
Furthermore, a handle connecting interface is arranged in the center of the support plate, the connecting handle is vertically connected to the connecting interface, and the support plate wound with the induction coil is placed into the inner space of the end cover of the bearing chamber by holding the vertically connected handle.
Furthermore, the bearing chamber end cover is horizontally placed, the support plate wound with the induction coil is placed into the inner space of the bearing chamber end cover by holding the vertically connected handle, the handle is vertically upward, and then the induction coil is connected with an external medium-frequency alternating power supply.
Further, after the external intermediate frequency alternating power supply is switched on, the temperature of the bearing chamber end cover is detected by using an infrared thermometer, when the target temperature is reached, the external intermediate frequency alternating power supply is switched off, and the support disc wound with the induction coil is taken out from the inner space of the bearing chamber end cover by holding the handle.
Furthermore, the support disc is in the shape of a circular disc, ribs are distributed on the inner circle in the radial direction, through holes and notches are distributed on the outer disc surface in the radial direction, and the leading-out end is accommodated in one of the notches.
Furthermore, a U-shaped groove is formed in the outer circle of the support plate, and the induction coil is wound in the U-shaped groove.
Furthermore, the handle connecting interface is a center-through column fixedly connected with the center of the support plate, a threaded hole is formed in one end of the handle, and the hexagonal bolt penetrates through the center-through column and then is vertically and fixedly connected onto the support plate through the threaded hole.
Further, a heat insulation gasket is connected to the joint of the through core column and the handle.
The invention has the following advantages:
1. the induction heating mode is adopted to carry out electromagnetic induction heating on the interior of the end cover of the bearing chamber, so that the heating can be conveniently and efficiently carried out rapidly, and the subsequent bearing hot jacket installation is facilitated.
2. The heating device connected with the vertical handle enables an operator to hold the handle to conveniently and rapidly place or take the heating device into or out of the inner space of the end cover of the bearing chamber, and the heating device is high in portability.
Drawings
FIG. 1: the induction heating coil is in use state and structure schematic diagram.
FIG. 2: a cross-sectional view of the entire structure of the induction heating coil.
FIG. 3: the structural front view of the bracket plate.
FIG. 4: fig. 3 is a sectional view taken along line a.
FIG. 5: the structure of the induction coil is shown schematically.
Detailed Description
In order that those skilled in the art will be able to fully practice the present invention, it will be further described with reference to the accompanying drawings and specific examples.
As shown in fig. 1-5, when the bearing chamber needs to be heated, the induction heating device is placed in the inner space of the bearing chamber end cover 8, an external medium frequency alternating power supply is connected to the induction coil 4, and the bearing chamber end cover 8 is heated and heated by electromagnetic induction. The bearing housing induction heating device comprises an induction coil 4, the induction coil 4 being wound on a carrier plate 3.
In order to conveniently take and place the whole support plate 3, a handle connecting interface is arranged in the center of the support plate 3, and the connecting handle 1 is vertically connected to the connecting interface. When the bearing chamber end cover 8 needs to be heated, the whole bearing chamber induction heating coil can be conveniently taken and placed by holding the handle 1. Handle 1 and support dish 3 are connected perpendicularly for handle 1 remains throughout vertical when getting to put, conveniently grips during the operation, and the department of gripping is also far away apart support dish 3, and the security is higher.
An embodiment of a handle connecting interface is shown in fig. 1, the handle connecting interface is a through-center column 31 fixedly connected with the center of a support plate 3, a threaded hole is formed in one end of a handle 1, and a hexagon bolt 5 penetrates through the through-center column 31 and then vertically and fixedly connects the handle 1 to the support plate 3 through a flat washer 6 and a spring washer 7 through the threaded hole.
In order to facilitate the winding and the shaping fixation of the induction coil 4 on the support disc 3, a U-shaped groove 32 is formed in the outer circle of the support disc 3, and the induction coil 4 is wound in the U-shaped groove 32.
Preferably, the support plate 3 is in the shape of a circular disc, ribs 33 are radially distributed on the inner circle, and through holes 34 and gaps 35 are radially distributed on the outer disc surface, so that the support plate can be used for inserting and fixing the induction coil 4 in the U-shaped groove 32 through a binding wire. At least one of the notches 35 is configured to receive a terminal 41. As shown in fig. 4, the induction coil 4 is made of a wire with an insulating layer, and is wound in the U-shaped groove 32 of the support plate until the wire is flush with the outer circle of the support plate 3, and the wire leading-out end 41 is finally led out from the larger gap of the outer circle of the support plate 3 for being in butt joint with an external alternating power supply.
The preferred embodiment is that the bearing chamber end cover 8 is horizontally placed, the support plate 3 wound with the induction coil 4 is placed into the inner space of the bearing chamber end cover 8 by holding the vertically connected handle 1, the handle 1 is enabled to face upwards vertically, and then the induction coil 4 is connected with an external medium-frequency alternating power supply. When placing bearing chamber end cover 8 level, handle 1 can be released to support plate 3 after putting into bearing chamber end cover 8, changes and goes to connect through outside intermediate frequency alternating power supply, and the operation is simple and convenient.
In order to accurately grasp the heating time, after an external intermediate frequency alternating power supply is switched on, the temperature of the bearing chamber end cover 8 is detected by using an infrared thermometer, when the target temperature is reached, the external intermediate frequency alternating power supply is switched off, and the support disc 3 wound with the induction coil 4 is taken out from the inner space of the bearing chamber end cover 8 by holding the handle 1.
Obviously, the above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. An induction heating method for a bearing housing, characterized in that: the utility model provides a bearing room induction heating device, bearing room induction heating device includes induction coil (4), and induction coil (4) winding is on a support dish (3), and support dish (3) that will twine induction coil (4) are put into the inner space of bearing room end cover (8), for induction coil (4) switch-on outside intermediate frequency alternating power supply, utilize electromagnetic induction to heat up bearing room end cover (8).
2. A method of induction heating of a bearing housing as claimed in claim 1, characterized by: the induction coil (4) is provided with a leading-out end (41) externally connected with the intermediate frequency alternating power supply, and the external intermediate frequency alternating power supply provides intermediate frequency alternating current for the induction coil (4) through the leading-out end (41).
3. A method of induction heating of a bearing housing as claimed in claim 2, characterized by: the center of the support plate (3) is provided with a handle connecting interface, the connecting handle (1) is vertically connected to the connecting interface, and the support plate (3) wound with the induction coil (4) is placed in the inner space of the bearing chamber end cover (8) by holding the vertically connected handle (1).
4. A method of induction heating of a bearing housing as claimed in claim 3, characterized by: firstly, a bearing chamber end cover (8) is horizontally placed, a support plate (3) wound with an induction coil (4) is placed into the inner space of the bearing chamber end cover (8) by holding a handle (1) which is vertically connected, so that the handle (1) is vertically upward, and then the induction coil (4) is connected with an external medium-frequency alternating power supply.
5. The bearing housing induction heating method of claim 4, wherein: after an external intermediate frequency alternating power supply is switched on, the temperature of the bearing chamber end cover (8) is detected by using an infrared thermometer, the external intermediate frequency alternating power supply is switched off when the target temperature is reached, and the support plate (3) wound with the induction coil (4) is taken out of the inner space of the bearing chamber end cover (8) by holding the handle (1).
6. A method of induction heating of a bearing housing as claimed in claim 3, characterized by: the support disc (3) is in a circular disc shape, ribs (33) are radially distributed on an inner circle, through holes (34) and notches (35) are radially distributed on an outer disc surface, and the leading-out end (41) is accommodated in one notch (35).
7. The bearing housing induction heating method of claim 6, wherein: the excircle of the support frame disc (3) is provided with a U-shaped groove (32), and the induction coil (4) is wound in the U-shaped groove (32).
8. The bearing housing induction heating method of claim 7, wherein: the handle connecting interface is a center-through column (31) fixedly connected with the center of the support plate (3), a threaded hole is formed in one end of the handle (1), and a hexagon bolt (5) penetrates through the center-through column (31) and then is vertically and fixedly connected with the handle (1) on the support plate (3).
9. The bearing housing induction heating method of claim 8, wherein: the joint of the through core column (31) and the handle (1) is also connected with a heat insulation gasket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111477323.6A CN114369712A (en) | 2021-12-06 | 2021-12-06 | Induction heating method for bearing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111477323.6A CN114369712A (en) | 2021-12-06 | 2021-12-06 | Induction heating method for bearing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114369712A true CN114369712A (en) | 2022-04-19 |
Family
ID=81140258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111477323.6A Pending CN114369712A (en) | 2021-12-06 | 2021-12-06 | Induction heating method for bearing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114369712A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205676507U (en) * | 2016-06-12 | 2016-11-09 | 乐清市精创机械制造有限公司 | A kind of bearing HF induction heating apparatus |
| CN106967870A (en) * | 2017-04-27 | 2017-07-21 | 上海电力股份有限公司吴泾热电厂 | High temperature and high pressure steam valve sealing face scene burning optimization on line system |
| CN207910653U (en) * | 2018-01-16 | 2018-09-25 | 恒速控股有限公司 | Electric motor end cap heating device |
| CN209602602U (en) * | 2019-02-02 | 2019-11-08 | 中南大学 | A kind of gradient hardness annular element annealing device |
-
2021
- 2021-12-06 CN CN202111477323.6A patent/CN114369712A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205676507U (en) * | 2016-06-12 | 2016-11-09 | 乐清市精创机械制造有限公司 | A kind of bearing HF induction heating apparatus |
| CN106967870A (en) * | 2017-04-27 | 2017-07-21 | 上海电力股份有限公司吴泾热电厂 | High temperature and high pressure steam valve sealing face scene burning optimization on line system |
| CN207910653U (en) * | 2018-01-16 | 2018-09-25 | 恒速控股有限公司 | Electric motor end cap heating device |
| CN209602602U (en) * | 2019-02-02 | 2019-11-08 | 中南大学 | A kind of gradient hardness annular element annealing device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220419 |