CN218372386U - Medium frequency quenching inductor for piston rod of low-speed diesel engine - Google Patents
Medium frequency quenching inductor for piston rod of low-speed diesel engine Download PDFInfo
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- CN218372386U CN218372386U CN202222513758.8U CN202222513758U CN218372386U CN 218372386 U CN218372386 U CN 218372386U CN 202222513758 U CN202222513758 U CN 202222513758U CN 218372386 U CN218372386 U CN 218372386U
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Abstract
The utility model provides a low-speed diesel engine piston rod intermediate frequency quenching inductor, which comprises two groups of semicircular induction coils with the same structure, wherein one end of each group of semicircular induction coils is fixed with a connecting block, the other end is communicated with a first connecting pipe, the other end of the first connecting pipe is communicated with a second connecting pipe which is vertically arranged with the first connecting pipe, the tail end of the second connecting pipe is communicated with a head water inlet pipe, and the outer wall of the second connecting pipe is fixed with a connecting plate; a middle water inlet pipe is fixed on the outer wall of each group of semicircular induction coils and close to the end where the connecting block is located; during assembly, the two connecting blocks are fixedly connected through the bolt assembly, and the two groups of semicircular induction coils are combined into an annular structure. The medium-frequency quenching inductor adopts a split two-half structure, so that the process of matching and installing the medium-frequency quenching inductor with the piston rod in the using process is simplified; and the induction heating and water spraying quenching integrated structure is adopted, so that the quenching quality is ensured, the quenching quality of the piston rod is further improved, and the surface hardness of the piston rod is ensured.
Description
Technical Field
The utility model relates to a medium frequency quenching inductor of a piston rod of a low-speed diesel engine, belonging to the technical field of quenching.
Background
The two ends of the piston rod of the high-power low-speed diesel engine of the diesel engine are larger than the middle rod body part in size, the structure chart is shown in figure 20, the rod body part needs to move back and forth in the moving process of the piston rod to be wear-resistant, so the rod body part needs to be subjected to surface hardening treatment, the surface hardening needs to be realized by quenching, an integral induction coil is generally adopted for induction heating at present, and then the whole induction quenching process is realized by matching with a manual water spraying mode. The induction coil adopts an integral structure, and is inconvenient to be installed and matched with the piston rod in the quenching process; in addition, the quenching mode of manual water spraying is adopted, so that the quenching effect cannot be ensured, and the surface hardness of the piston rod after quenching is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims to provide a medium frequency quenching inductor for a piston rod of a low-speed diesel engine, which adopts a split two-half structure, thereby simplifying the installation process of the medium frequency quenching inductor matched with the piston rod in the use process; in addition, the induction heating and water spraying quenching integrated structure is adopted, so that the quenching quality is ensured, the quenching quality of the piston rod is further improved, and the surface hardness of the piston rod is ensured.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the medium frequency quenching inductor for the piston rod of the low-speed diesel engine comprises two groups of semicircular induction coils with the same structure, wherein one end of each group of semicircular induction coils is fixedly provided with a connecting block, the other end of each group of semicircular induction coils is communicated with a first connecting pipe, the other end of each first connecting pipe is communicated with a second connecting pipe which is vertically arranged with the first connecting pipe, the tail end of each second connecting pipe is communicated with a head water inlet pipe, and the outer wall of each second connecting pipe is fixedly provided with a connecting plate; a middle water inlet pipe is fixed on the outer wall of each group of semicircular induction coils and close to the end where the connecting block is located; during assembly, the two connecting blocks are fixedly connected through the bolt assembly, and the two groups of semicircular induction coils are combined into an annular structure.
The connecting block comprises a bolt mounting seat, a side plate is fixed on the outer wall of the bolt mounting seat, a bolt hole is processed in the center of the bolt mounting seat, and the side plate is welded at the end part of the semicircular induction ring and used for plugging the end part.
The bolt assembly comprises a first bolt penetrating through a bolt hole of the connecting block, and a nut is installed on the first bolt in a matched mode.
The semicircular induction coil comprises a rectangular pipe, and the end of the rectangular pipe is welded and blocked by brazing; the outer wall of the rectangular pipe is provided with a communicating hole communicated with the middle water inlet pipe, and a plurality of obliquely arranged water spraying holes are uniformly distributed and processed at the lower end vertex angle part of the rectangular pipe close to the inner side.
The angle of the water hole and the central axis of the semicircular induction coil form an included angle of 45 degrees;
the whole inductor is made of red copper material, and all parts are welded by brazing at the welding position.
The first connecting pipe is also a rectangular pipe and comprises a first straight pipe, and an inclined port end is machined at the end, butted with the semicircular induction coil, of the first straight pipe.
The second connecting pipe also adopts a rectangular pipe and comprises a second straight pipe, and a rectangular hole is formed in one end, butted with the first connecting pipe, of the second straight pipe.
The connecting plate is including connecting the mainboard, and the one end processing of connecting the mainboard has multichannel open slot, and the other end bending type becomes the otic placode, and the otic placode links to each other with the lateral wall welding of second connecting pipe.
One middle water inlet pipe is connected with a bent pipe, and the other end of the bent pipe is arranged at the position where the two connecting blocks are butted.
The utility model discloses there is following beneficial effect:
1. the utility model adopts the split two-half structure, thereby simplifying the installation process of the piston rod in the use process; in addition, the induction heating and water spraying quenching integrated structure is adopted, so that the quenching quality is ensured, the quenching quality of the piston rod is further improved, and the surface hardness of the piston rod is ensured.
2. Through adopting the utility model discloses a low-speed diesel engine piston rod intermediate frequency induction quenches and uses inductor has solved low-speed diesel engine piston rod intermediate frequency surface hardening problem, sprays water to the connecting block through increasing the return bend to the inductor, has solved the inductor and has caused the problem that the inductor damaged because the connection position produces a large amount of heats easily in the quenching process.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a front view of the present invention.
Fig. 2 is a cross-sectional view of the connecting block of the present invention.
Fig. 3 is a side view of the connecting block of the present invention.
Fig. 4 is a cross-sectional view of the middle water inlet pipe of the present invention.
Fig. 5 is a side view of the middle water inlet pipe of the present invention.
Fig. 6 is a front view of the semicircular induction coil of the present invention.
Fig. 7 isbase:Sub>A view frombase:Sub>A-base:Sub>A of fig. 6 according to the present invention.
Fig. 8 is a development view of the direction B in fig. 7 of the present invention.
Fig. 9 is a front view of the connection plate of the present invention.
Fig. 10 is a top view of the connecting plate of the present invention.
Fig. 11 is a sectional view of the head water inlet pipe of the present invention.
Fig. 12 is a side view of the head water inlet pipe of the present invention.
Fig. 13 is a sectional view of a second connection pipe according to the present invention.
Fig. 14 is a view of the present invention from direction C in fig. 13.
Fig. 15 is a cross-sectional view of a first connection pipe of the present invention.
Fig. 16 is a view from direction D in fig. 15 according to the present invention.
Fig. 17 is a front view of the elbow pipe of the present invention.
Fig. 18 is a three-dimensional structure view of the present invention.
Fig. 19 is a mounting structure view of the present invention in use.
Fig. 20 is a piston rod structural view.
Fig. 21 is a view showing the piston rod in use.
In the figure: the device comprises a connecting block 1, a nut 2, a first bolt 3, a bent pipe 4, a middle water inlet pipe 5, a semicircular induction ring 6, a first connecting pipe 7, a second connecting pipe 8, a head water inlet pipe 9, a connecting block 10, a second water supply pipe 11, a first water supply pipe 12, a locking bolt 13, a lifting seat 14 and a piston rod 15;
a first straight pipe 701 and an inclined interface end 702;
a rectangular hole 801 and a second straight pipe 802;
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Example 1:
referring to fig. 1-21, the medium frequency quenching inductor for the piston rod of the low-speed diesel engine comprises two groups of semicircular induction coils 6 with the same structure, wherein one end of each group of semicircular induction coils 6 is fixed with a connecting block 1, the other end of each group of semicircular induction coils is communicated with a first connecting pipe 7, the other end of each first connecting pipe 7 is communicated with a second connecting pipe 8 which is vertically arranged with the first connecting pipe, the tail end of each second connecting pipe 8 is communicated with a head water inlet pipe 9, and the outer wall of each second connecting pipe 8 is fixed with a connecting block 10; a middle water inlet pipe 5 is fixed on the outer wall of each group of semicircular induction coils 6 and close to the end of the connecting block 1; during assembly, the two connecting blocks 1 are fixedly connected through the bolt assembly, and two groups of semicircular induction coils 6 are combined into an annular structure. The inductor with the structure solves the problem of medium-frequency surface quenching of the piston rod of the low-speed diesel engine. By adopting the split two-half structure, the process of matching and installing the piston rod in the use process is simplified; and the induction heating and water spraying quenching integrated structure is adopted, so that the quenching quality is ensured, the quenching quality of the piston rod is further improved, and the surface hardness of the piston rod is ensured.
Further, the connecting block 1 comprises a bolt mounting seat 102, a side plate 101 is fixed on the outer wall of the bolt mounting seat 102, a bolt hole 103 is formed in the center of the bolt mounting seat 102, and the side plate 101 is welded to the end of the semicircular induction ring 6 and seals the end.
Further, the bolt assembly comprises a first bolt 3 penetrating through the bolt hole 103 of the connecting block 1, and a nut 2 is fittingly mounted on the first bolt 3.
Further, the semicircular induction coil 6 comprises a rectangular pipe 601, and the end of the rectangular pipe 601 is welded and sealed by brazing 602; a communicating hole 603 is arranged on the outer wall of the rectangular pipe 601 and is communicated with the middle water inlet pipe 5, and a plurality of obliquely arranged water spraying holes 604 are uniformly distributed and processed on the top corner part of the lower end of the rectangular pipe 601 close to the inner side.
Further, the angle of the water hole 604 forms an included angle of 45 degrees with the central axis of the semicircular induction coil 6. By adopting the angle arrangement, the optimal water spraying effect is ensured, and the quenching and cooling effects are further ensured.
Further, the entire inductor is made of red copper material, and the respective parts are welded at the welding portions by brazing. The induction heating inductor is made of red copper materials, so that a good induction heating effect is guaranteed, the service life of the inductor is prolonged, and the reliability of a connection part is guaranteed through brass welding.
Further, the first connecting pipe 7 is also a rectangular pipe, and includes a first straight pipe 701, and an inclined interface end 702 is processed at an end of the first straight pipe 701, which is in butt joint with the semicircular induction coil 6. The first connecting pipe 7 is adopted to facilitate water injection into the semicircular induction coil 6.
Further, the second connecting pipe 8 is also a rectangular pipe, and includes a second straight pipe 802, and a rectangular hole 801 is formed in one end, butted with the first connecting pipe 7, of the second straight pipe 802. The water is conveniently injected into the semicircular induction coil 6 by adopting the second connecting pipe 8.
Further, the connecting block 10 includes a connecting main board 1002, a plurality of open grooves 1003 are formed in one end of the connecting main board 1002, the other end of the connecting main board 1002 is bent to form an ear plate 1001, and the ear plate 1001 is connected with the outer side wall of the second connecting pipe 8 in a welding mode. Through foretell connecting block 10 can carry out reliable fixed connection with whole inductor and intermediate frequency quenching lathe, and then be convenient for the equipment of whole inductor.
The joint of the two semicircular induction coils 6 is easy to generate high temperature and damage in the quenching process, and in order to prevent the inductor from being easily damaged at the part, the part needs to be cooled in time. Therefore, furthermore, an elbow 4 is connected to one of the middle water inlet pipes 5, and the other end of the elbow 4 is arranged at the butt joint position of the two connecting blocks 1. By adopting the structure, in the quenching process, the elbow 4 sprays cold water to the connecting block 1 at the joint of the semicircular induction coil 6 for cooling protection.
Example 2:
the use method of the medium frequency quenching inductor for the piston rod of the low-speed diesel engine comprises the following steps:
the method comprises the following steps: when the piston rod 15 needs to be quenched, firstly, the piston rod 15 is vertically fixed on the side of the medium-frequency quenching machine tool through a clamp;
step two: selecting an inductor with a proper size according to the diameter of a piston rod 15, arranging two groups of semicircular induction coils 6 outside the piston rod 15, and fixing the semicircular induction coils on a lifting seat 14 of the intermediate frequency quenching machine tool through a connecting block 10 and a locking bolt 13;
step three: the open ends of the two groups of semicircular induction coils 6 are fixedly connected through the connecting block 1 and the bolt assembly;
step four: the two head water inlet pipes 9 are respectively communicated with a first water supply pipe 12; two middle water inlet pipes 5 are respectively communicated with a second water supply pipe 11;
step five: starting the intermediate frequency quenching machine tool and carrying out induction heating on the rod body surface of the piston rod 15 through the semicircular induction coil 6, heating the piston rod through the semicircular induction coil 6 while the inductor rises when the piston rod is quenched, and cooling through the water spray holes 604 below the inductor to further achieve a quenching process;
step six: in the quenching process, the bent pipe 4 carries out cooling protection on the connecting block 1 at the joint of the semicircular induction coil 6.
Claims (9)
1. The medium-frequency quenching inductor for the piston rod of the low-speed diesel engine is characterized by comprising two groups of semicircular induction coils (6) with the same structure, wherein one end of each group of semicircular induction coils (6) is fixedly provided with a connecting block (1), the other end of each group of semicircular induction coils is communicated with a first connecting pipe (7), the other end of each first connecting pipe (7) is communicated with a second connecting pipe (8) which is vertically arranged with the first connecting pipe, the tail end of each second connecting pipe (8) is communicated with a head water inlet pipe (9), and the outer wall of each second connecting pipe (8) is fixedly provided with a connecting plate (10); a middle water inlet pipe (5) is fixed on the outer wall of each group of semicircular induction coils (6) and close to the end where the connecting block (1) is located; during assembly, the two connecting blocks (1) are fixedly connected through a bolt assembly, and two groups of semicircular induction coils (6) are combined into an annular structure.
2. The medium frequency quenching inductor for the piston rod of the low-speed diesel engine according to claim 1, characterized in that: the connecting block (1) comprises a bolt mounting seat (102), a side plate (101) is fixed on the outer wall of the bolt mounting seat (102), a bolt hole (103) is machined in the center of the bolt mounting seat (102), and the side plate (101) is welded at the end part of the semicircular induction coil (6) and seals the end part.
3. The medium frequency quenching inductor for the piston rod of the low-speed diesel engine according to claim 1, characterized in that: bolt assembly is including first bolt (3) of passing bolt hole (103) of connecting block (1), and nut (2) are installed in the cooperation on first bolt (3).
4. The medium frequency quenching inductor for the piston rod of the low-speed diesel engine according to claim 1, characterized in that: the semicircular induction coil (6) comprises a rectangular pipe (601), and the end head of the rectangular pipe (601) is welded and sealed by brazing (602); a communicating hole (603) is arranged on the outer wall of the rectangular pipe (601) and is communicated with the middle water inlet pipe (5), and a plurality of obliquely arranged water spraying holes (604) are uniformly distributed and processed at the lower end vertex angle part of the rectangular pipe (601) close to the inner side.
5. The medium frequency quenching inductor for the piston rod of the low-speed diesel engine according to claim 4, wherein: the angle of the water hole (604) forms an included angle of 45 degrees with the central axis of the semicircular induction coil (6);
the whole inductor is made of red copper material, and all parts are welded by brazing in the welding position.
6. The medium frequency quenching inductor for the piston rod of the low-speed diesel engine according to claim 1, characterized in that: the first connecting pipe (7) is also a rectangular pipe and comprises a first straight pipe (701), and an inclined interface end (702) is machined at the end, butted with the semicircular induction coil (6), of the first straight pipe (701).
7. The medium frequency quenching inductor for the piston rod of the low-speed diesel engine as recited in claim 1, wherein: the second connecting pipe (8) is also a rectangular pipe and comprises a second straight pipe (802), and a rectangular hole (801) is formed in one end, butted with the first connecting pipe (7), of the second straight pipe (802).
8. The medium frequency quenching inductor for the piston rod of the low-speed diesel engine according to claim 1, characterized in that: the connecting plate (10) is including connecting mainboard (1002), and the one end processing of connecting mainboard (1002) has multichannel open slot (1003), and the other end bending type becomes otic placode (1001), and the lateral wall welding of otic placode (1001) and second connecting pipe (8) links to each other.
9. The medium frequency quenching inductor for the piston rod of the low-speed diesel engine according to claim 1, characterized in that: one middle water inlet pipe (5) is connected with an elbow (4), and the other end of the elbow (4) is arranged at the butt joint part of the two connecting blocks (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222513758.8U CN218372386U (en) | 2022-09-22 | 2022-09-22 | Medium frequency quenching inductor for piston rod of low-speed diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222513758.8U CN218372386U (en) | 2022-09-22 | 2022-09-22 | Medium frequency quenching inductor for piston rod of low-speed diesel engine |
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| Publication Number | Publication Date |
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| CN218372386U true CN218372386U (en) | 2023-01-24 |
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| CN202222513758.8U Active CN218372386U (en) | 2022-09-22 | 2022-09-22 | Medium frequency quenching inductor for piston rod of low-speed diesel engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115449602A (en) * | 2022-09-22 | 2022-12-09 | 宜昌船舶柴油机有限公司 | Medium-frequency quenching inductor for piston rod of low-speed diesel engine and using method |
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2022
- 2022-09-22 CN CN202222513758.8U patent/CN218372386U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115449602A (en) * | 2022-09-22 | 2022-12-09 | 宜昌船舶柴油机有限公司 | Medium-frequency quenching inductor for piston rod of low-speed diesel engine and using method |
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