CN109680139B - Heat treatment device for slewing bearing outer ring raceway - Google Patents
Heat treatment device for slewing bearing outer ring raceway Download PDFInfo
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- CN109680139B CN109680139B CN201910170777.5A CN201910170777A CN109680139B CN 109680139 B CN109680139 B CN 109680139B CN 201910170777 A CN201910170777 A CN 201910170777A CN 109680139 B CN109680139 B CN 109680139B
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- positioning
- cooling cylinder
- slewing bearing
- heat treatment
- outer ring
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- 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
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- 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
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
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- 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
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
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- 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
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
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- 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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- 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)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a heat treatment device for an outer ring raceway of a slewing bearing, which comprises a cooling cylinder, wherein two support columns are symmetrically arranged at the upper end of the cooling cylinder, and heating units capable of ascending and descending up and down are arranged on the two support columns through a cross beam; the cooling cylinder is divided into an upper layer and a lower layer, the upper layer of the cooling cylinder contains cooling liquid, and a positioning unit which can move up and down and can rotate is further arranged in the upper layer of the cooling cylinder. The invention utilizes the positioning unit, can place slewing bearing outer rings with various sizes, and simultaneously carries out heat treatment on the slewing bearing outer rings, thereby greatly improving the heat treatment efficiency of the outer ring raceway of the slewing bearing; in addition, the invention integrates heating, heat preservation and cooling on one device, so that the three heat treatment processes have better continuity, and the heat treatment effect is ensured.
Description
Technical Field
The invention relates to the technical field of slewing bearing processing, in particular to a heat treatment device for an outer ring raceway of a slewing bearing.
Background
The slewing bearing is a novel mechanical part and comprises an inner ring, an outer ring, a rolling body and the like, the slewing bearing is a large bearing capable of bearing comprehensive loads, can bear larger axial and radial loads and overturning moments at the same time, has various models, but needs rolling heat treatment, the roller path of the slewing bearing is subjected to surface induction quenching treatment, and the quenching hardness is ensured to be HRC 55-62, so that the depth of a hardening layer can be enough. The quenching is a heat treatment process of heating the steel to a temperature above a critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel), preserving the heat for a period of time to ensure that the steel is completely or partially austenitized, and then rapidly cooling the steel to a temperature below Ms (or isothermal temperature near Ms) at a cooling speed higher than a critical cooling speed to perform martensite (or bainite) transformation; therefore, quenching is divided into three continuous processes of heating, heat preservation and cooling, so that the manufacturing strength can be ensured only by ensuring the continuity during processing; in addition, the existing heat treatment device can only carry out heat treatment on a single part, and cannot carry out simultaneous heat treatment on outer rings with various sizes, so that the treatment efficiency is reduced.
Disclosure of Invention
In view of the technical defects, the invention aims to provide a heat treatment device for an outer ring raceway of a slewing bearing, which can ensure the continuity of heating, heat preservation and cooling processes and improve the processing efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a heat treatment device for an outer ring raceway of a slewing bearing, which comprises a cooling cylinder, wherein two support columns are symmetrically arranged at the upper end of the cooling cylinder, and heating units capable of ascending and descending are arranged on the two support columns through a cross beam; the cooling cylinder is divided into an upper layer and a lower layer, the upper layer of the cooling cylinder contains cooling liquid, a positioning unit which can move up and down and can rotate is further arranged in the upper layer of the cooling cylinder, and the positioning unit is located under the heating unit.
Preferably, the positioning unit comprises a bottom plate and a positioning plate, a plurality of through holes are uniformly distributed on the bottom plate, and the positioning plate is fixed on the bottom plate in the spiral direction of the variable-diameter vortex line; the positioning plate is provided with a plurality of detachable positioning rods with different lengths, the outer ring of the slewing bearing to be thermally treated is placed on the bottom plate and tightly attached to the corresponding adjacent two circles of positions on the positioning plate, and the outer ring of the slewing bearing is positioned on the bottom plate at three points through the positioning plate and the positioning rods.
Preferably, a waist-shaped groove is formed in the positioning rod, the positioning rod is fixed to the positioning plate through a T-shaped locking column and a locking nut, and a first T-shaped sliding groove for the T-shaped locking column to slide is formed in the positioning plate.
Preferably, the heating unit comprises a slideway fixed on the beam, a plurality of suspenders arranged on the slideway, and a quenching induction heater fixed on the suspenders, and the slideway is provided with a second T-shaped chute for the suspenders to slide; the slide way is fixed on the beam and right above the positioning unit in the spiral direction of the variable-diameter spiral line and corresponds to the variable-diameter spiral line formed by the positioning plate on the positioning unit.
Preferably, a rotatable lead screw is arranged in each supporting column, a stepping motor used for driving the lead screw to rotate is fixedly arranged at the top of each supporting column, and two ends of each cross beam are respectively assembled with the lead screws in the two supporting columns in a threaded manner.
Preferably, a partition plate is arranged in the cooling cylinder, the partition plate divides the cooling cylinder into an upper layer and a lower layer, a driving shaft is fixedly arranged at the bottom of the positioning unit, the driving shaft penetrates through the partition plate and extends to the lower layer of the cooling cylinder, a lifting column used for driving the driving shaft to move up and down is arranged at the lower layer of the cooling cylinder, and the driving shaft and the partition plate are in dynamic seal; a motor is further arranged in the lower layer of the cooling cylinder, an output shaft of the motor extends to the upper layer of the cooling cylinder and is provided with a driving gear, and the output shaft of the motor is in dynamic seal with the partition plate; the driving shaft is positioned on the peripheral wall of the upper layer of the cooling cylinder and is provided with driven teeth meshed with the driving gear, and the length of the driven teeth is greater than that of the driving teeth on the driving gear.
Preferably, the lifting column is a hydraulic cylinder, and a telescopic shaft of the hydraulic cylinder is connected with the driving shaft through a bearing.
The invention has the beneficial effects that: the invention utilizes the positioning unit, can place slewing bearing outer rings with various sizes at the same time, and carries out heat treatment on the slewing bearing outer rings at the same time, thereby greatly improving the heat treatment efficiency of the outer ring raceway of the slewing bearing; in addition, the invention integrates heating, heat preservation and cooling on one device, so that the three heat treatment processes have better continuity, and the heat treatment effect is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a heat treatment device for an outer ring raceway of a slewing bearing according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a positioning unit;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a projection of the positioning unit and the slide in the direction of arrow a in FIG. 1;
FIG. 5 is a schematic view of the connection between the positioning rod and the positioning plate;
FIG. 6 is a schematic structural view of a heating unit;
fig. 7 is a schematic view of the connection of the support column and the cross beam.
Description of reference numerals: 1-cooling cylinder, 11-lifting column, 12-driving shaft, 121-driven tooth, 13-motor, 131-driving gear, 14-bearing, 15-clapboard, 2-positioning unit, 21-positioning plate, 211-first T-shaped chute, 212-T-shaped locking column, 213-locking nut, 22-bottom plate, 23-positioning rod, 3-heating unit, 31-slideway, 32-suspender, 33-quenching induction heater, 4-supporting column, 41-stepping motor, 42-cross beam, 43-lead screw, 5-slewing bearing outer ring and 6-liquid level line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1, the invention provides a heat treatment device for an outer ring raceway of a slewing bearing, which comprises a cooling cylinder 1, wherein two support columns 4 are symmetrically arranged at the upper end of the cooling cylinder 1, a cross beam 42 capable of ascending and descending up and down is arranged between the two support columns 4, and a heating unit 3 is fixed on the cross beam 42; referring to fig. 7, a rotatable lead screw 43 is arranged in each support column 4, a stepping motor 41 for driving the lead screw 43 to rotate is fixedly arranged at the top of each support column 4, two ends of each cross beam 42 are respectively in threaded assembly with the lead screws 43 in the two support columns 4, and the two stepping motors 41 drive the electric heating unit 3 to move up and down; be provided with baffle 15 in the cooling cylinder 1, two-layer about baffle 15 divide into cooling cylinder 1, and wherein the upper strata is used for holding the coolant liquid, still is provided with in the upper strata of cooling cylinder 1 in addition and can reciprocates and can the pivoted positioning unit 2, and positioning unit 2 is located heating element 3 under.
Further referring to fig. 1, the up-down movement and rotation of the positioning unit 2 are respectively realized by a lifting column 11 (in the present embodiment, the lifting column 11 is a hydraulic cylinder) and a motor 13; a lifting column 11 and a motor 13 are respectively fixed in the lower layer of the cooling cylinder 1, a driving shaft 12 is fixed at the center of the bottom of the positioning unit 2, and the driving shaft 12 is rotatably connected with a telescopic shaft of a hydraulic cylinder through a double-row tapered roller bearing 14 (for example, the driving shaft 12 is fixed with the outer ring of the bearing, and the telescopic shaft of the hydraulic cylinder is fixed with the inner ring of the bearing); an output shaft of the motor 13 penetrates through the partition plate 15 and is provided with a driving gear 131, a driven gear 121 is arranged on the part, located on the upper layer of the cooling cylinder 1, of the driving shaft 12, the motor 13 drives the driving shaft 12 to rotate through gear transmission, wherein a double-row tapered roller bearing capable of bearing bidirectional axial force is required to be adopted as the bearing 14, on one hand, the bidirectional axial force is borne to realize the up-and-down movement of the driving shaft 12, on the other hand, the driving shaft 12 rotates relative to a hydraulic cylinder, and the torque of the driving shaft; it should be noted that, in the state of fig. 1, the positioning unit 2 is raised to the highest position, and at this time, the positioning unit 2 is located above the liquid level line 6, the driving gear 131 is meshed with the driven gear 121, and when the positioning unit 2 is lowered to the lowest position, the positioning unit 2 and the outer ring 5 of the slewing bearing thereon are immersed in the cooling liquid, and at this time, the driving gear 131 is still meshed with the driven gear 121, and the driving gear 131 is not in contact with the positioning unit 2, and the driven gear 121 is not in contact with the partition 15, so that in the actual design, the lengths of the driving gears on the driven gear 121 and the driving gear 131 need to be reasonably set, and the length of the driven gear 121 needs to be greater than that of the driving gear on the.
As shown in fig. 2, 4 and 6, the positioning unit 2 includes a bottom plate 22 and a positioning plate 21, the heating unit 3 includes a slideway 31 fixed on a cross beam 42, a plurality of suspenders 32 arranged on the slideway 31, and a quenching induction heater 33 fixed on the suspenders 32 (the quenching induction heater 33 is in the prior art and is used for heating a raceway of an outer ring), the positioning plate 21 and the slideway 31 are both in a spiral shape with a variable-diameter spiral line, and have the same number of turns, the slideway 31 is provided with a second T-shaped chute for the suspenders 32 to slide, and the second T-shaped chute is also in a spiral shape with a variable diameter along the slideway 31; fig. 4 is a schematic diagram of fig. 1 after projection is performed only on the positioning unit 2 and the heating unit 3 along the direction of arrow a, in order to ensure that the quenching induction heater 33 on the heating unit 3 can be accurately placed in the outer ring 5 of the slewing bearing, when a plurality of positioned outer rings 5 of the slewing bearing are placed in the positioning unit 2, the connecting lines of the circle centers corresponding to the outer rings 5 of the slewing bearing are located right below the slideway 31, that is, the connecting lines of the circle centers also form a variable-diameter vortex line identical to the slideway 31;
referring to fig. 3, a plurality of detachable positioning rods 23 with different lengths are disposed on the positioning plate 21, the bottom plate 22 is used for bearing the slewing bearing outer ring 5 and is provided with a plurality of through holes uniformly distributed for introducing cooling liquid, after the slewing bearing outer ring 5 is placed in, the slewing bearing outer ring 5 is pushed to be tightly attached to the positioning plate 21 and form two positioning points (e.g., two points c and d in fig. 2), then the positioning rods 23 are installed to be tightly attached to the slewing bearing outer ring 5 to form a third positioning point (point b in fig. 2), and finally the slewing bearing outer ring 5 forms three-point positioning on the positioning unit 2 (a circle is determined by using three points, three points b, c and d in fig. 2), so that the slewing bearing outer ring 5 is stabilized on the positioning unit 2;
furthermore, a waist-shaped groove is formed in the positioning rod 23, the positioning rod 23 is fixed on the positioning plate 21 through a T-shaped locking column 212 and a locking nut 213, the T-shaped locking column 212 and the locking nut 213 are assembled in a threaded manner, a first T-shaped sliding groove 211 for the T-shaped locking column 212 to slide is formed in the positioning plate 21, and the first T-shaped sliding groove 211 is also in a shape of a variable-diameter vortex linear line along the positioning plate 21
In the present embodiment, since cooling is involved, i.e. the upper layer of the cooling cylinder 1 contains cooling liquid, the driving shaft 12 and the output shaft of the motor 13 need to be sealed with the partition 15 to prevent the cooling liquid from leaking into the lower layer of the cooling cylinder 1, for example, a mechanically conventional packing seal or other existing sealing means can be used.
When the device is used, slewing bearing outer rings 5 with different sizes are placed in the positioning units 2 (the positioning units 2 are positioned above a liquid level line 6 at the moment), positioning rods 23 with different lengths are utilized to position the slewing bearing outer rings 5, then the quenching induction heaters 33 are moved to positions right above the corresponding slewing bearing outer rings 5 by pulling the hanging rods 32, after all the quenching induction heaters 33 are moved to the positions, the whole heating unit 3 is controlled to descend by the stepping motor 41, so that the quenching induction heaters 33 are moved to the roller paths to be heated of the slewing bearing outer rings 5, then the quenching induction heaters 33 are started to heat the roller paths, the heat preservation time is controlled according to a heat treatment process, after the heat preservation is finished, the positioning units 2 are controlled to descend by the lifting columns 11, and after all the quenching induction heaters enter cooling liquid, the motor 13 is started to drive the positioning units 2 to rotate, to ensure the cooling effect.
According to the invention, through the reducing vortex-shaped linear positioning plate and the slide way, the slewing bearing outer rings with different sizes can be placed in the positioning unit at the same time, quenching induction heaters with various sizes can be placed on the slide way at the same time, three-point positioning of the slewing bearing outer rings is realized through flexible installation of the positioning rod, the slewing bearing outer rings with different sizes are heated at the same time, and the processing efficiency is greatly improved; in addition, the heating, the heat preservation and the cooling are integrated on one device, so that the three heat treatment processes have better continuity, the heat treatment effect is ensured, the heat preservation is carried out after the heating is finished, then the outer ring of the slewing bearing is controlled to descend through the lifting column for cooling, the positioning unit is driven to rotate by the motor, the outer ring of the slewing bearing rotates in the cooling liquid, and the cooling effect is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. The heat treatment device for the outer ring raceway of the slewing bearing is characterized by comprising a cooling cylinder (1), wherein two support columns (4) are symmetrically arranged at the upper end of the cooling cylinder (1), and heating units (3) capable of ascending and descending are arranged on the two support columns (4) through cross beams (42); the cooling cylinder (1) is divided into an upper layer and a lower layer, the upper layer of the cooling cylinder (1) contains cooling liquid, a positioning unit (2) which can move up and down and rotate is further arranged in the upper layer of the cooling cylinder (1), and the positioning unit (2) is located right below the heating unit (3);
the positioning unit (2) comprises a bottom plate (22) and a positioning plate (21), a plurality of through holes which are uniformly distributed are formed in the bottom plate (22), and the positioning plate (21) is fixed on the bottom plate (22) in the spiral direction of the variable-diameter vortex line; a plurality of detachable positioning rods (23) with different lengths are arranged on the positioning plate (21), an outer ring (5) of the slewing bearing to be thermally treated is placed on the bottom plate (22) and is tightly attached to two corresponding adjacent rings of positions on the positioning plate (21), and the outer ring (5) of the slewing bearing forms three-point positioning on the bottom plate (22) through the positioning plate (21) and the positioning rods (23);
the heating unit (3) comprises a slide way (31), a plurality of hanging rods (32) arranged on the slide way (31) and a quenching induction heater (33) fixed on the hanging rods (32), and a second T-shaped sliding groove for the hanging rods (32) to slide is formed in the slide way (31); the spiral direction that slide (31) is reducing vortex line is fixed on crossbeam (42), directly over locating unit (2), and is corresponding with the reducing vortex line that locating plate (21) on locating unit (2) formed.
2. The heat treatment device for the outer ring raceway of the slewing bearing according to claim 1, wherein the positioning rod (23) is provided with a waist-shaped groove, the positioning rod (23) is fixed on the positioning plate (21) through a T-shaped locking column (212) and a locking nut (213), and the positioning plate (21) is provided with a first T-shaped sliding groove (211) for the T-shaped locking column (212) to slide.
3. The heat treatment device for the outer ring raceway of the slewing bearing according to claim 2, wherein a rotatable lead screw (43) is arranged in the supporting column (4), a stepping motor (41) for driving the lead screw (43) to rotate is fixedly arranged at the top of the supporting column (4), and two ends of the cross beam (42) are respectively in threaded assembly with the lead screws (43) in the two supporting columns (4).
4. The heat treatment device for the slewing bearing outer ring raceway as claimed in claim 3, wherein a partition plate (15) is arranged in the cooling cylinder (1), the partition plate (15) divides the cooling cylinder (1) into an upper layer and a lower layer, a drive shaft (12) is fixedly arranged at the bottom of the positioning unit (2), the drive shaft (12) passes through the partition plate (15) and extends to the lower layer of the cooling cylinder (1), a lifting column (11) for driving the drive shaft (12) to move up and down is arranged at the lower layer of the cooling cylinder (1), and the drive shaft (12) is in dynamic seal with the partition plate (15); a motor (13) is further arranged in the lower layer of the cooling cylinder (1), an output shaft of the motor (13) extends to the upper layer of the cooling cylinder (1) and is provided with a driving gear (131), and the output shaft of the motor (13) is in dynamic seal with the partition plate (15); the driving shaft (12) is positioned on the peripheral wall of the upper layer of the cooling cylinder (1) and is provided with driven teeth (121) meshed with the driving gear (131), and the length of the driven teeth (121) is larger than that of the driving teeth on the driving gear (131).
5. A heat treatment device for an outer race of a slewing bearing according to claim 4, wherein said lifting column (11) is a hydraulic cylinder, and a telescopic shaft of said hydraulic cylinder is connected to said drive shaft (12) through a bearing (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910170777.5A CN109680139B (en) | 2019-03-07 | 2019-03-07 | Heat treatment device for slewing bearing outer ring raceway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910170777.5A CN109680139B (en) | 2019-03-07 | 2019-03-07 | Heat treatment device for slewing bearing outer ring raceway |
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| CN109680139A CN109680139A (en) | 2019-04-26 |
| CN109680139B true CN109680139B (en) | 2020-06-19 |
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| CN201910170777.5A Active CN109680139B (en) | 2019-03-07 | 2019-03-07 | Heat treatment device for slewing bearing outer ring raceway |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111270055A (en) * | 2020-03-17 | 2020-06-12 | 许仙福 | Adjustable quenching and heating device for quenching and tempering production line equipment |
| CN112921157B (en) * | 2021-03-01 | 2023-07-18 | 徐州工程学院 | Full-size slewing bearing quenching heat treatment device |
| CN113549849B (en) * | 2021-09-22 | 2021-11-23 | 南通泾达船用轴瓦有限公司 | Heat treatment equipment for non-ferrous metal processing |
| CN114355805B (en) * | 2021-12-20 | 2023-08-22 | 上海英众信息科技有限公司 | Skid-mounted electric power monitoring Internet of things equipment |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5721257B2 (en) * | 2011-01-28 | 2015-05-20 | 富士電子工業株式会社 | Induction hardening equipment |
| CN202492542U (en) * | 2012-02-28 | 2012-10-17 | 马鞍山经纬回转支承有限公司 | Quenching tool for raceway of small-diameter slewing bearing outer circle |
| CN205088290U (en) * | 2015-10-29 | 2016-03-16 | 綦江永跃齿轮有限公司 | In -band limit structure's spouts cold type guenching unit |
| CN105506241A (en) * | 2015-11-27 | 2016-04-20 | 辽宁工业大学 | Novel quenching machine tool for piston rods |
| CN205710817U (en) * | 2016-04-07 | 2016-11-23 | 贵州航瑞科技有限公司 | Frock is heated in a kind of sensing for blind rivet mandrel |
| CN105969955B (en) * | 2016-06-30 | 2018-12-28 | 三一重型能源装备有限公司 | Induction hardening equipment and heat treatment system |
| CN207933499U (en) * | 2018-03-19 | 2018-10-02 | 安徽省宣城市乾坤回转支承有限公司 | A kind of pivoting support raceway is without soft band quenching apparatus |
| CN108486316B (en) * | 2018-03-30 | 2019-07-26 | 燕山大学 | A kind of device and method of reducing type coil to heavily loaded camshaft induction heating |
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Address after: 234000 east of 500m Road north of intersection of Zhongshan Road and Huaihai Road in Yongqiao Economic Development Zone, caochun Town, Yongqiao District, Suzhou City, Anhui Province Patentee after: Anhui Wenjun Automation Technology Co.,Ltd. Address before: 234000 east of 500m Road north of intersection of Zhongshan Road and Huaihai Road in Yongqiao Economic Development Zone, caochun Town, Yongqiao District, Suzhou City, Anhui Province Patentee before: ANHUI WENJUN AUTOMATION TECHNOLOGY Co.,Ltd. |