CN110923434A - Local high-frequency quenching device for pin shaft - Google Patents
Local high-frequency quenching device for pin shaft Download PDFInfo
- Publication number
- CN110923434A CN110923434A CN201911026487.XA CN201911026487A CN110923434A CN 110923434 A CN110923434 A CN 110923434A CN 201911026487 A CN201911026487 A CN 201911026487A CN 110923434 A CN110923434 A CN 110923434A
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- CN
- China
- Prior art keywords
- pin shaft
- top plate
- electric telescopic
- heat insulation
- local high
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- 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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- 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
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
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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
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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
Abstract
The invention discloses a pin shaft local high-frequency quenching device, which comprises a base, wherein support columns are fixedly arranged at four corners of the upper part of the base, a top plate is fixedly arranged at the tops of the support columns, electric telescopic rods are symmetrically arranged at the lower sides of the middle parts of the side walls at two sides of the top plate, a sliding chute is arranged between two adjacent electric telescopic rods at the bottom of the top plate, two sliding blocks are arranged in the sliding chute, one end of each of the two electric telescopic rods penetrates through the side wall of the top plate and is fixedly connected with the sliding block, heat insulation plates are arranged at the bottoms of clamping plates, a cooling cavity is arranged at one side of each heat insulation plate connected with a pin shaft, a water inlet pipe and a water outlet pipe are respectively arranged at the upper and lower parts of the inner sides of the heat insulation plates, the water, the applicability is strong, the operation is convenient, the production cost is low, and the continuous production can be realized.
Description
Technical Field
The invention relates to the technical field of pin shaft quenching, in particular to a local high-frequency quenching device for a pin shaft.
Background
The pin shaft of the common chain is made of alloy steel mostly, and then the wear resistance of the surface of the pin shaft is improved through integral quenching. The rivet head amount of the pin shaft is mostly about 3 percent of the diameter of the pin shaft. However, some chains need larger riveting head amount, if the pin shaft is integrally quenched, the pin shaft is locally cracked due to the larger riveting head amount, and the service life of the chain is reduced; if the pin shaft is tempered or not thermally treated, the pin shaft is bent and the chain is dead due to the fact that the pin shaft is insufficient in hardness and the rivet head is too large.
In order to solve the problems, the commonly adopted method is to anneal the two ends of the pin shaft locally after the pin shaft is integrally quenched, so that the hardness of the two ends is reduced, and the requirement of a chain with large rivet head amount is met. However, this method is not only expensive and complicated in operation, but also difficult in controlling the annealing hardness at both ends, which is not suitable for continuous production.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention aims to provide the local high-frequency quenching device for the pin shaft, which has the advantages of simple structure, low cost, convenience in annealing and continuous production.
After adopting the structure, the invention provides the following technical scheme:
a local high-frequency quenching device for a pin shaft comprises a base, wherein supporting columns are fixedly arranged at four corners of the upper part of the base, the top of the supporting column is fixedly provided with a top plate, the lower sides of the middle parts of the side walls at the two sides of the top plate are symmetrically provided with electric telescopic rods, a sliding groove is arranged at the bottom of the top plate between two adjacent electric telescopic rods, two sliding blocks are arranged in the sliding groove, one end of each electric telescopic rod penetrates through the side wall of the top plate and is fixedly connected with the sliding block, the lower parts of the sliding blocks are fixedly provided with clamping plates, one adjacent surface of the two clamping plates clamps a pin shaft, the bottom of the clamping plate is provided with a heat insulation plate, one side of the heat insulation plate connected with the pin shaft is provided with a cooling cavity, the upper and lower parts of the inner side of each heat insulation plate are respectively provided with a water inlet pipe and a water outlet pipe, the water inlet pipes and the water outlet pipes are both connected with the cooling cavity, and the middle part of the upper surface of the base is provided with a quenching furnace at the lower parts of the two heat insulation plates.
Preferably, one side of each of the two clamping plates adjacent to each other is of a circular arc structure.
Preferably, the middle part of the electric telescopic rod is provided with a fixing plate, and the fixing plate is fixedly installed on the side wall of the top plate through a first nut.
Preferably, the heat insulation plate is fixed at the bottom of the top plate through a second nut.
The invention provides a local high-frequency quenching device for a pin shaft, which has the beneficial effects that: the water inlet pipe is connected with a cooling water source, the drain pipe is connected with the cooling pool, then the electric telescopic rod is used for controlling the sliding block to separate the two clamping plates, the pin shaft is clamped by the clamping plates, then the quenching furnace is started to quench the pin shaft, meanwhile, cooling water is sent into the cooling cavity through the water inlet pipe, the pin shaft is cooled by the cooling water, and the cooling water is discharged through the drain pipe, so that the pin shaft is cooled, and the purpose of local quenching of the pin shaft is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1.
In the figure: the quenching furnace comprises a base 1, a support column 2, a first nut 3, an electric telescopic rod 4, a fixing plate 5, a sliding chute 6, a top plate 7, a sliding block 8, a pin shaft 9, a through hole 10, a clamping plate 11, a quenching furnace 12, a water inlet pipe 13, a heat insulation plate 14, a water discharge pipe 15, a second nut 16 and a cooling cavity 17.
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.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a local high frequency quenching device of round pin axle, includes base 1, and the equal fixed mounting in base 1's upper portion four corners has support column 2, and the top fixed mounting of support column 2 has roof 7, and electric telescopic handle 4 is installed to roof 7's both sides lateral wall middle part downside symmetry, and electric telescopic handle 4's middle part is provided with fixed plate 5, and fixed plate 5 is through 3 fixed mounting of first nut on roof 7's lateral wall, simple to operate, and the regulation of being convenient for can be suitable for the round pin axle of different diameters and be suitable.
The bottom of the top plate 7 is located between two adjacent electric telescopic handles 4, a sliding groove 6 is formed in the sliding groove 6, two sliding blocks 8 are arranged in the sliding groove 6, one ends of the two electric telescopic handles 4 all run through the side wall of the top plate 7 and are fixedly connected with the sliding blocks 8, clamping plates 11 are fixedly arranged on the lower portions of the sliding blocks 8, one adjacent side of each clamping plate 11 is of a circular arc-shaped structure, a clamping pin shaft 9 is convenient to use, the applicability is strong, and the adjustment.
Two splint 11 adjacent one side centre gripping have round pin axle 9, splint 11's bottom all is provided with heat insulating board 14, heat insulating board 14 passes through second nut 16 to be fixed in the bottom of roof 7, easy to assemble, thermal-insulated effectual, the suitability is strong, cooling chamber 17 has all been seted up with one side of round pin axle 9 connection to heat insulating board 14, the lower part is provided with inlet tube 13 and drain pipe 15 respectively on heat insulating board 14's the inboard, inlet tube 13 and drain pipe 15 all are connected with cooling chamber 17, the lower part that base 1's upper surface middle part is located two heat insulating boards 14 is provided with quenching furnace 12, convenient continuous quenching.
The working process is as follows: when the quenching device is used, the water inlet pipe 13 is connected with a cooling water source, the water discharge pipe 15 is connected with a cooling pool, the electric telescopic rod 4 is used for controlling the slide block 8 to separate the two clamping plates 11, the clamping plates 11 are used for clamping the pin shaft 9, the quenching furnace 12 is started for quenching the pin shaft 9, meanwhile, cooling water is sent into the cooling cavity 17 through the water inlet pipe 13, the pin shaft 9 is cooled by the cooling water, and the cooling water is discharged through the water discharge pipe 15, so that the pin shaft 9 is cooled, and the aim of local quenching is fulfilled by the pin shaft 9.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The utility model provides a local high frequency hardening device of round pin axle, includes base (1), the equal fixed mounting in upper portion four corners of base (1) has support column (2), the top fixed mounting of support column (2) has roof (7), its characterized in that: electric telescopic rods (4) are symmetrically arranged at the lower sides of the middle parts of the side walls at the two sides of the top plate (7), a sliding groove (6) is formed in the bottom of the top plate (7) and positioned between the two adjacent electric telescopic rods (4), two sliding blocks (8) are arranged in the sliding groove (6), one end of each of the two electric telescopic rods (4) penetrates through the side wall of the top plate (7) and is fixedly connected with the corresponding sliding block (8), clamping plates (11) are fixedly arranged at the lower parts of the sliding blocks (8), pin shafts (9) are clamped at the adjacent surfaces of the two clamping plates (11), heat insulation plates (14) are arranged at the bottoms of the clamping plates (11), cooling cavities (17) are formed in the sides, connected with the pin shafts (9), water inlet pipes (13) and water outlet pipes (15) are respectively arranged at the upper and lower parts of the inner sides of the heat insulation plates (14), and the water, and a quenching furnace (12) is arranged at the middle part of the upper surface of the base (1) and is positioned at the lower part of the two heat insulation plates (14).
2. The local high-frequency quenching device for the pin shaft according to claim 1, characterized in that: one side of each of the two clamping plates (11) adjacent to each other is of a circular arc structure.
3. The local high-frequency quenching device for the pin shaft according to claim 1, characterized in that: the middle part of electric telescopic handle (4) is provided with fixed plate (5), fixed plate (5) are through first nut (3) fixed mounting on the lateral wall of roof (7).
4. The local high-frequency quenching device for the pin shaft according to claim 1, characterized in that: the heat insulation plate (14) is fixed at the bottom of the top plate (7) through a second nut (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911026487.XA CN110923434B (en) | 2019-10-26 | 2019-10-26 | Local high-frequency quenching device for pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911026487.XA CN110923434B (en) | 2019-10-26 | 2019-10-26 | Local high-frequency quenching device for pin shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110923434A true CN110923434A (en) | 2020-03-27 |
| CN110923434B CN110923434B (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911026487.XA Active CN110923434B (en) | 2019-10-26 | 2019-10-26 | Local high-frequency quenching device for pin shaft |
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| Country | Link |
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| CN (1) | CN110923434B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009775A (en) * | 2022-05-30 | 2022-09-06 | 杭州自强链传动有限公司 | High-strength conveying chain |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09157753A (en) * | 1995-12-07 | 1997-06-17 | Fuji Denshi Kogyo Kk | Work supporting mechanism used for quenching device for long-sized work and quenching device for long-sized work using the work supporting mechanism |
| CN101451183A (en) * | 2008-12-30 | 2009-06-10 | 苏州环球链传动有限公司 | Partial hardening apparatus by high frequency current for shaft type parts |
| CN102864294A (en) * | 2012-10-09 | 2013-01-09 | 贵州师范大学 | Method and device of local heat treatment for thin-walled tubular parts |
| CN105274307A (en) * | 2015-11-13 | 2016-01-27 | 兰州飞行控制有限责任公司 | Local annealing heat treatment method for small part |
| CN205223293U (en) * | 2015-12-11 | 2016-05-11 | 中国航空工业集团公司北京航空制造工程研究所 | Nail body local annealing device |
| CN208685027U (en) * | 2018-06-22 | 2019-04-02 | 安徽绩溪徽山链传动有限公司 | A kind of pin shaft automatic sensing quenching press |
-
2019
- 2019-10-26 CN CN201911026487.XA patent/CN110923434B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09157753A (en) * | 1995-12-07 | 1997-06-17 | Fuji Denshi Kogyo Kk | Work supporting mechanism used for quenching device for long-sized work and quenching device for long-sized work using the work supporting mechanism |
| CN101451183A (en) * | 2008-12-30 | 2009-06-10 | 苏州环球链传动有限公司 | Partial hardening apparatus by high frequency current for shaft type parts |
| CN102864294A (en) * | 2012-10-09 | 2013-01-09 | 贵州师范大学 | Method and device of local heat treatment for thin-walled tubular parts |
| CN105274307A (en) * | 2015-11-13 | 2016-01-27 | 兰州飞行控制有限责任公司 | Local annealing heat treatment method for small part |
| CN205223293U (en) * | 2015-12-11 | 2016-05-11 | 中国航空工业集团公司北京航空制造工程研究所 | Nail body local annealing device |
| CN208685027U (en) * | 2018-06-22 | 2019-04-02 | 安徽绩溪徽山链传动有限公司 | A kind of pin shaft automatic sensing quenching press |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009775A (en) * | 2022-05-30 | 2022-09-06 | 杭州自强链传动有限公司 | High-strength conveying chain |
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| CN110923434B (en) | 2021-06-15 |
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