Split type induction coil for heating large-size workpiece

Abstract

The utility model discloses a split type induction coil for heating a large-size workpiece, and relates to the technical field of inductors. The split type induction coil comprises an industrial power supply, an induction coil, a wiring terminal and a quick plug assembly, the split type induction coil is arranged at the upper end and the lower end of a workpiece, then the spring is clamped to the set screw, the quick-plug male head overcomes the tension of the spring to be inserted into the groove formed by the quick-plug female head, then the set screw is locked, the quick-plug male head and the quick-plug female head are locked and attached under the tension action of the spring, and then the industrial power supply is powered on. Performing induction heating on the workpiece; and after the workpiece is heated, the industrial power supply is powered off, the set screw is screwed out, then the spring is pulled out from the set screw at one end, the quick-plug female head forms a groove and becomes large, and the quick-plug male head is pulled out, so that the splitting and disassembly of the induction coil are realized. Connection and separation of the induction coils are achieved through the quick-plug assembly, the structure is simple, disassembly and assembly are convenient, connection is firm, and labor and time are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to induction coil design technical field, concretely is a kind of split type induction coil for large size workpiece heating. BACKGROUND

[0002] Induction coil is the core component of induction heating system, its function is through electromagnetic induction principle to efficiently convert electric energy into heat energy, realizes the non-contact heating to metal material, under high-frequency magnetic field, current concentrates in metal surface layer (skin depth is inversely proportional to frequency), realizes rapid surface heating, it is visible that induction heating technology and induction coil can be widely applied in pipe, gear, bearing, steel wire and other metal parts quenching. Face induction heating of large size workpiece, for example, long and large diameter pipe, after induction heating, induction coil is difficult to disassemble, if it is made into split type, it is convenient to assemble and disassemble, can effectively overcome the problem, therefore, it is necessary to develop a kind of split type induction coil for large size workpiece heating.

[0003] At present, the existing Chinese patent publication number CN222192591U discloses a kind of high-frequency induction heating coil quick connector and quick connector group, the device is increased by one quick connector between integrated high-frequency induction heating equipment and induction coil, when installing, the first sealing connector of connecting pipe is connected on the electrode fixed pipe of the cooling water supply end of integrated high-frequency induction heating equipment by live joint, the second sealing connector of the other end is connected with one end of induction coil, the other end of induction coil can be connected with the other electrode fixed pipe of integrated high-frequency induction heating equipment, and another quick connector can be increased to connect, and when different induction coils are needed to heat the products of different shapes and workpieces, by power-off to the equipment, induction coil can be replaced, reduce the trouble brought to staff, also improve work efficiency, but the device is still a whole induction coil wound outside the workpiece to be heated after induction coil is disassembled from integrated high-frequency induction heating equipment, when the workpiece to be heated is long and large, induction coil still cannot be quickly and conveniently disassembled from workpiece.

[0004] In summary, although the existing split type induction coil can realize split type disassembly and assembly to a certain extent, improve convenience, there are still many deficiencies, therefore, we develop a kind of split type induction coil for large size workpiece heating. UTILITY MODEL CONTENTS

[0005] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a split-type induction coil for heating large workpieces. The split-type induction coil is connected via a quick-connect assembly, making assembly and disassembly convenient. When induction heating large workpieces, the induction coil can be quickly removed after heating, saving time and effort. Furthermore, the quick-connect assembly has a self-locking structure to ensure a secure connection. In summary, this split-type induction coil has a simple structure, is easy to assemble and disassemble, has a secure connection, and saves time and effort, effectively solving the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a split-type induction coil for heating large-sized workpieces, comprising an industrial power supply, an induction coil, a terminal block, and a quick-connect assembly; a push rod is screwed onto one side of the industrial power supply, the terminal block is inserted into the upper end of the industrial power supply, a workpiece is provided on the upper side of the industrial power supply, the induction coil is wound around the outer side of the workpiece, and one end of a connecting cable is detachably and fixedly connected to both ends of the induction coil, the other end of the connecting cable is inserted into the terminal block;

[0007] The induction coil is provided with two sets of multiple quick-connect components arranged in a linear array parallel to its axis. Each quick-connect component includes a male quick-connect connector, a female quick-connect connector, a set screw, and a spring. The male quick-connect connector is welded to one end of the induction coil, and the female quick-connect connector is welded to the other end of the induction coil. The female quick-connect connector consists of two symmetrical "L"-shaped copper blocks. The set screws are symmetrically screwed onto both sides of the female quick-connect connector, and the two ends of the spring are correspondingly engaged with the two set screws.

[0008] Preferably, the spacing of the linear array of quick-connect components is equal to the pitch of the induction coil.

[0009] Preferably, the quick-connect male connector is in the shape of an "I" and the protrusion at its end is adapted to the groove formed by the quick-connect female connector.

[0010] Preferably, the set screw has a hole for spring engagement.

[0011] Preferably, the set screw is fully screwed into the quick-connect female and compresses the spring.

[0012] Preferably, the copper blocks of the quick-connect male and quick-connect female connectors are hollow and have water inlets, and the water outlets fit together and are sealed after they are inserted.

[0013] Preferably, the quick-connect male and female connectors are made of copper, and the spring is made of chromium-silicon alloy.

[0014] Compared with existing technologies, the advantages of this invention are: the split-type induction coil is connected via a quick-connect assembly, making assembly and disassembly convenient. When induction heating large workpieces, the induction coil can be quickly removed after heating, saving time and effort. Furthermore, the quick-connect assembly has a self-locking structure to ensure a secure connection. In summary, this split-type induction coil has a simple structure, is easy to assemble and disassemble, has a secure connection, and saves time and effort. Attached Figure Description

[0015] Figure 1 This is an isometric view of the present invention;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is an isometric view of the induction coil and quick-connect assembly of this utility model;

[0018] Figure 4 This is a partial enlarged view of the quick-connect assembly of this utility model.

[0019] In the diagram: 1 is the industrial power supply, 2 is the push rod, 3 is the induction coil, 4 is the connecting cable, 5 is the terminal block, 6 is the quick-connect assembly, 7 is the quick-connect male connector, 8 is the quick-connect female connector, 9 is the set screw, 10 is the spring, and 11 is the workpiece. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a split-type induction coil for heating large-sized workpieces, including an industrial power supply 1, an induction coil 3, a terminal block 5, and a quick-connect assembly 6; a push rod 2 is screwed to one side of the industrial power supply 1, a terminal block 5 is inserted into the upper end of the industrial power supply 1, a workpiece 11 is provided on the upper side of the industrial power supply 1, an induction coil 3 is wound around the outside of the workpiece 11, and one end of a connecting cable 4 is detachably and fixedly connected to both ends of the induction coil 3, and the other end of the connecting cable 4 is inserted into the terminal block 5;

[0022] The induction coil 3 is provided with two sets of multiple quick-connect components 6 arranged in a linear array parallel to its axis. The quick-connect component 6 includes a quick-connect male connector 7, a quick-connect female connector 8, a set screw 9, and a spring 10. The quick-connect male connector 7 is welded to one end of the induction coil 3, and the quick-connect female connector 8 is welded to the other end of the induction coil 3. The quick-connect female connector 8 consists of two symmetrical "L"-shaped copper blocks. The set screws 9 are symmetrically screwed on both sides of the quick-connect female connector 8, and the two ends of the spring 10 are correspondingly engaged with the two set screws 9.

[0023] It is understandable that the induction coil 3 has a split structure, that is, the induction coil 3 includes multiple helical half-turns and multiple quick-connect components 6. Through the insertion and cooperation of quick-connect male connector 7 and quick-connect female connector 8, the assembly and disassembly of the induction coil 3 can be completed quickly, which is convenient for large-sized workpieces to be removed after induction heating. It saves time and effort for manual labor. By setting spring 10 to tighten two copper blocks, the quick-connect male connector 7 and quick-connect female connector 8 are locked and fitted. The copper blocks have a certain deformation capacity. When the quick-connect male connector 7 is inserted into the quick-connect female connector 8, the two "L"-shaped copper blocks deform and spread out, but rebound after being limited by the tension of spring 10, thus achieving the locking operation. When separating the quick-connect male connector 7 and quick-connect female connector 8, the spring 10 is pulled out from the set screw 9 at one end, so that the spring 10 no longer applies tension to the quick-connect female connector 8, and the quick-connect male connector 7 can be pulled out, thus realizing the separation and disassembly of the induction coil 3.

[0024] Furthermore, the spacing of the linear array of quick-connect components 6 is equal to the pitch of the induction coil 3, that is, there are two quick-connect components 6 in each turn of the induction coil 3, so that the induction coil 3 can be disassembled and assembled as a whole. Specifically, the two quick-connect components 6 in each turn of the induction coil 3 are symmetrical about the axis of the induction coil 3, that is, the induction coil 3 is a split type.

[0025] Specifically, the quick-connect male connector 7 is in the shape of an "I" and its end protrusion matches the groove formed by the quick-connect female connector 8. The quick-connect female connector 8 can fit the quick-connect male connector 7 very well.

[0026] Furthermore, the set screw 9 is machined with a hole for the spring 10 to engage; the set screw 9 is fully screwed into the quick-connect female 8 and presses the spring 10 to prevent the spring 10 from coming out, thus ensuring the tensioning effect of the spring 10 on the quick-connect female 8.

[0027] Furthermore, the copper blocks of the quick-connect male connector 7 and quick-connect female connector 8 are hollow and have water inlets. After they are inserted, the water outlets fit together and are sealed. That is, after the quick-connect male connector 7 and quick-connect female connector 8 are connected, a flow channel can be formed. External cooling water is introduced into the induction coil 3 and flows through the quick-connect male connector 7 and quick-connect female connector 8 to form a circulation, thereby cooling the induction coil 3.

[0028] In addition, the quick-connect male connector 7 and quick-connect female connector 8 are made of copper, and the spring 10 is made of chromium-silicon alloy.

[0029] Working principle: When performing induction heating on a large workpiece 11, the split induction coil 3 is placed above and below the workpiece 11. Then, the spring 10 is attached to the set screw 9. The quick-connect male connector 7 overcomes the tension of the spring 10 and is inserted into the groove formed by the quick-connect female connector 8. Then, the set screw 9 is tightened. Under the tension of the spring 10, the quick-connect male connector 7 and the quick-connect female connector 8 are locked together. Then, the industrial power supply 1 is powered on to perform induction heating on the workpiece 11. After the workpiece 11 is heated, the industrial power supply 1 is turned off, the set screw 9 is unscrewed, and the spring 10 is pulled out from the set screw 9 at one end. Thus, the spring 10 no longer applies tension to the quick-connect female connector 8, the groove formed by the quick-connect female connector 8 becomes larger, and the quick-connect male connector 7 is pulled out, thereby realizing the separation and disassembly of the induction coil 3.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A split-type induction coil for heating large-sized workpieces, characterized in that: It includes an industrial power supply (1), an induction coil (3), a terminal block (5), and a quick-connect assembly (6); a push rod (2) is screwed onto one side of the industrial power supply (1), the terminal block (5) is inserted into the upper end of the industrial power supply (1), a workpiece (11) is provided on the upper side of the industrial power supply (1), the induction coil (3) is wound around the outside of the workpiece (11), and one end of a connecting cable (4) is detachably and fixedly connected to both ends of the induction coil (3), and the other end of the connecting cable (4) is inserted into the terminal block (5); The induction coil (3) is provided with two sets of multiple quick-connect components (6) arranged in a linear array parallel to its axis. The quick-connect component (6) includes a quick-connect male connector (7), a quick-connect female connector (8), a set screw (9), and a spring (10). The quick-connect male connector (7) is welded to one end of the induction coil (3), and the quick-connect female connector (8) is welded to the other end of the induction coil (3). The quick-connect female connector (8) consists of two symmetrical "L"-shaped copper blocks. The set screws (9) are symmetrically screwed onto both sides of the quick-connect female connector (8), and the two ends of the spring (10) are correspondingly engaged with the two set screws (9).

2. A split-type induction coil for heating large-sized workpieces according to claim 1, characterized in that: The spacing of the linear array of the quick-connect assembly (6) is equal to the pitch of the induction coil (3).

3. A split-type induction coil for heating large-sized workpieces according to claim 1, characterized in that: The quick-connect male connector (7) is in the shape of an "I" and its end protrusion is adapted to the groove formed by the quick-connect female connector (8).

4. A split-type induction coil for heating large-sized workpieces according to claim 1, characterized in that: The set screw (9) has a hole for the spring (10) to engage.

5. A split-type induction coil for heating large-sized workpieces according to claim 1, characterized in that: The set screw (9) is fully screwed into the quick-connect female (8) and compresses the spring (10).

6. A split-type induction coil for heating large-size workpieces according to claim 1, characterized in that: The copper blocks of the quick-connect male connector (7) and quick-connect female connector (8) are hollow structures and have water inlets. After they are inserted together, the water outlets fit together and are sealed.

7. A split-type induction coil for heating large-sized workpieces according to claim 1, characterized in that: The quick-connect male connector (7) and quick-connect female connector (8) are made of copper, and the spring (10) is made of chromium-silicon alloy.

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