Barrel type inductor for induction quenching of constant velocity universal joint

Abstract

The utility model discloses a barrel-shaped inductor for induction quenching of a constant velocity universal joint. The barrel-shaped inductor comprises a contact base, the contact base is connected with the fixed plate through the first fixed copper block and the second fixed copper block; the fixed plate is sleeved on the main spray pipe; the main spray pipe is embedded on the effective ring; a shielding ring is further arranged on the main spray pipe; the shielding ring is positioned below the fixed plate; the shielding ring is connected with the fixing plate through a shielding ring fixing block, the shielding ring is adjusted and moved up and down in the shielding ring fixing block, and the effective coil further comprises an upper induction coil; the upper induction coil is connected with the lower induction coil through a connecting pipe to form an upper and lower double-induction-coil induction mode; busbars are arranged on the inner sides of the lower induction coil and the upper induction coil; the lower induction coil and the upper induction coil are connected in series through the busbar to form a series access, and finally the overall appearance structure of the effective coil is in a cylindrical shape. According to the utility model, the non-uniform heating and local overheating or underheating of the universal joint are improved, the production efficiency is improved, the process procedure is improved, and the overall equipment performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of induction quenching, in particular to a barrel-shaped inductor for induction quenching of a constant velocity universal joint. Background Art

[0002] Hardening inductors are widely used in industries such as induction hardening equipment. Induction heat treatment is a key process in the manufacturing of constant velocity joints. A wide variety of inductors are currently available on the market. The efficiency and quality of induction hardening are significantly affected by the inductor's shape and the direction of the induced current. Design flaws in the inductor can prevent it from fully conforming to the barrel shell, leading to uneven heating. This can cause localized overheating or underheating in curved areas or along edges. The magnetic field strength and distribution generated by the barrel shell inductor can be suboptimal, resulting in slower heating of the shell. This can reduce production efficiency and compromise product quality.

[0003] Chinese utility model application number CN202323234632.8 discloses a quenching tool for a constant velocity universal joint housing, comprising a base plate with a fixed column fixedly connected to its top, a heating ring fixedly connected to the outside of the fixed column, a quenching liquid container enclosed within the heating ring and fixedly connected to the top of the base plate; and an adjustment assembly comprising two fixed plates, each of which has a sliding groove formed therein. This utility model does not address the aforementioned shortcomings of the prior art. Utility Model Content

[0004] In order to solve the problems of uneven heating of constant velocity joints, partial overheating or underheating, and reduced production efficiency, the present application proposes a barrel-shaped inductor for induction hardening of constant velocity joints.

[0005] To this end, the present application proposes a barrel-shaped inductor for induction quenching of a constant velocity universal joint, comprising a contact base; the contact base is connected to a fixed plate through a first fixed copper block and a second fixed copper block; the fixed plate is sleeved on the main nozzle; the main nozzle is embedded in the effective circle; a shielding ring is also provided on the main nozzle; the shielding ring is located below the fixed plate; the shielding ring is connected to the fixed plate through a shielding ring fixing block, and is characterized in that: the shielding ring is adjusted and moved up and down in the shielding ring fixing block, and the effective circle also includes an upper induction coil; the upper induction coil is connected to the lower induction coil through a connecting tube to form an induction mode of upper and lower double induction coils; a bus is provided on the inner side of the lower induction coil and the upper induction coil; the bus connects the lower induction coil and the upper induction coil in series to form a series path, and finally the overall appearance structure of the effective circle presents a barrel shape.

[0006] The utility model utilizes a cylindrical active coil with an upper and lower dual induction coil induction mode, which increases the output power and enhances the efficiency of the inductor. The upper and lower dual induction coils provide a more uniform current flow, resulting in a more uniform quenching pattern and improved quality of the quenched workpiece. The upper and lower induction coils, connected in series by a bus, can be adjusted to the same power level, making the inductor more stable during operation. Furthermore, the adjustable shielding ring controls the magnitude of the local magnetic field by controlling the magnetic field absorption variable of the shielding ring, thereby controlling the degree of quenching of the workpiece.

[0007] A further improvement is that: the upper induction coil also includes an upper induction coil inner copper sheet and an upper induction coil outer copper sheet; the lower induction coil also includes a lower induction coil inner copper sheet and a lower induction coil outer copper sheet; the upper induction coil inner copper sheet is a cylindrical copper sheet with an open side, and the bottom edge of the copper sheet is bent at a right angle, and finally the overall appearance of the upper induction coil inner copper sheet is an L-shaped non-closed cylindrical copper sheet; the structures of the upper induction coil outer copper sheet, the lower induction coil inner copper sheet and the lower induction coil outer copper sheet are the same as the structure of the upper induction coil inner copper sheet.

[0008] The effect is that the L-shaped non-closed cylindrical copper sheet is easier to manufacture and the process steps are simplified.

[0009] A further improvement is that the upper induction coil inner copper sheet and the upper induction coil outer copper sheet in the upper induction coil are combined vertically to form a cylindrical shape with a hollow inner wall. There is a welding gap on the side of the cylinder. In addition, the lower induction coil and the upper induction coil are symmetrically arranged.

[0010] The effect is that the welding gap makes the manufacturing process of the induction coil simpler and simplifies the process steps.

[0011] Further improvements are: the shielding ring includes a first cooling inlet and outlet water pipe, a second cooling inlet and outlet water pipe and a shielding ring; the first cooling inlet and outlet water pipe and the second cooling inlet and outlet water pipe are symmetrically arranged on the shielding ring; the first cooling inlet and outlet water pipe and the second cooling inlet and outlet water pipe are both hollow pipes, and there is a gap fit between the shielding ring and the workpiece.

[0012] The effect is that the shielding ring of the double water-cooled hollow pipe increases the cooling rate, and there is a gap fit between the shielding ring and the workpiece, which means that the shielding ring is movable and of relatively fixed size. The shielding ring set in this way can control the variable of the magnetic field at a fairly stable threshold.

[0013] A further improvement is that: the contact base includes a first water-permeable copper tube, a second water-permeable copper tube, a first power supply plate, a second power supply plate, a first fixed side plate, a second fixed side plate, a first insulating fastener, a second insulating fastener, and an insulating sheet; the first fixed side plate and the second fixed side plate are vertically arranged between the first water-permeable copper tube and the second water-permeable copper tube; an insulating sheet is provided between the first fixed side plate and the second fixed side plate; the first fixed side plate and the second fixed side plate and the insulating sheet are fixed together by the first insulating fastener and the second insulating fastener.

[0014] The effect is that the first fixed side plate, the second fixed side plate and the insulating sheet are better in contact with the base through the two insulating fasteners to ensure overall stability and firmness.

[0015] Further improvements are: the first water-passing copper tube is welded to the side of the first fixed side plate and is located between the first insulating fastener and the second insulating fastener, and the second water-passing copper tube is symmetrically arranged with the first water-passing copper tube; the first power supply plate is welded to the side of the first fixed side plate and is located at the rear end of the first fixed side plate, and the second power supply plate is symmetrically arranged with the first power supply plate; in addition, the first water-passing copper tube is also fixedly welded to the first power supply plate, the rear end of the first water-passing copper tube is welded to the front of the first power supply plate, and the second water-passing copper tube is symmetrically arranged with the first water-passing copper tube.

[0016] The effect is that the setting of double-pass water copper pipes and power plates helps to improve the cooling efficiency and electrode working rate of the sensor equipment. The fixed welding at each location is also to ensure the stability and strength of the equipment itself when the equipment is running at overclocking.

[0017] Further improvements are: a second insulating fastener is provided above the first fixed copper block, a first fixed side plate is provided on its inner side, and a fixed plate is provided below it; the inner side of the first fixed copper block is welded and fixed to the side of the first fixed side plate, and the first fixed copper block is fixed to the fixed plate with bolts; the second fixed copper block is symmetrically arranged with the first fixed copper block.

[0018] The effect is that the welding method further improves the stable connection between the contact base and the fixing plate, and the bolt connection simplifies the installation and disassembly of the fixing base.

[0019] A further improvement is that the fixing plate is made of high temperature resistant insulating epoxy resin.

[0020] The effect is that the fixing plate designed in this way is resistant to high temperatures and easy to insulate, and the materials used to manufacture the components themselves are more common and easy to obtain, further simplifying the process procedures.

[0021] A further improvement is that the first and second water-passing copper tubes are aligned and welded to the upper end of the busbar, so that the first and second water-passing copper tubes and the busbar form a complete cooling passage.

[0022] The effect is: after the two water-carrying copper pipes are connected to the bus, the cooling system of the equipment is strengthened, further improving the upper limit of the equipment capacity.

[0023] A further improvement is that a copper tube fixing block is provided above the welding position of the first and second water copper tubes to the busbar; the copper tube fixing block is connected to the fixing plate by bolts to further fix its welding position.

[0024] The effect is that the welding position is easily oxidized and broken when exposed to the air for a long time. A copper tube fixing block connected to the fixing plate bolts is set on it, which not only protects the welding position but also improves the firm connection between the fixing plate and the contact base. Beneficial effects

[0025] The utility model proposes a barrel-shaped inductor for induction hardening of constant velocity universal joints, which improves the uneven heating of the constant velocity universal joints, improves partial overheating or underheating, improves production efficiency, improves and simplifies the process procedures, and improves the equipment performance of the barrel-shaped inductor for induction hardening of constant velocity universal joints as a whole, solves the defects of the existing technology, and brings beneficial effects and progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the overall structural intention of the utility model;

[0027] Figure 2 Schematic diagram of the contact base structure;

[0028] Figure 3 It is a schematic diagram of the shielding ring structure;

[0029] Figure 4 It is a schematic diagram of the isometric viewing direction of the effective circle;

[0030] Figure 5 It is the right view of the effective circle;

[0031] Figure 6 It is the AA section view of the effective circle;

[0032] In the figure, 1 is the contact base, 2 is the shielding ring, 3 is the effective ring, 4 is the copper tube fixing block, 5 is the fixing plate, 6 is the main nozzle, 7 is the shielding ring fixing block, 9 is the insulating sheet, 22 is the shielding ring, 31 is the busbar, 32 is the upper induction coil, 33 is the lower induction coil, 34 is the connecting pipe, 35 is the welding gap, 111 is the first water copper pipe, 112 is the second water copper pipe, 121 is the first power supply plate, 122 is the second power supply plate, 131 is the first fixed side plate, 132 is the second fixed side plate, 141 is the first insulating fastener, 142 is the second insulating fastener, 151 is the first fixed copper block, 152 is the second fixed copper block, 211 is the first cooling inlet and outlet water pipes, 212 is the second cooling inlet and outlet water pipes, 321 is the inner copper sheet of the upper induction coil L, 322 is the outer copper sheet of the upper induction coil L, 331 is the inner copper sheet of the lower induction coil L, and 332 is the outer copper sheet of the lower induction coil L. DETAILED DESCRIPTION

[0033] The following is combined with the instructions Figures 1 to 6 By further describing the specific implementation methods of the present invention, the technical solutions and beneficial effects of the present invention will be made clearer and more specific.

[0034] Example 1

[0035] The utility model provides a barrel-shaped inductor for induction hardening of a constant velocity universal joint, comprising a contact base 1; the contact base 1 is connected to a fixed plate 5 through a first fixed copper block 151 and a second fixed copper block 152; the fixed plate 5 is sleeved on a main nozzle 6; the main nozzle 6 is embedded in an effective circle 3; a shielding ring 2 is also provided on the main nozzle 6; the shielding ring 2 is located below the fixed plate 5; the shielding ring 2 is connected to the fixed plate 5 through a shielding ring fixing block 7, and the shielding ring 2 is adjusted and moved up and down in the shielding ring fixing block 7, and the effective circle 3 also includes an upper induction circle 32; the upper induction circle 32 is connected to the lower induction circle 33 through a connecting pipe 34 to form an induction mode of upper and lower double induction circles; a bus 31 is provided on the inner side of the lower induction circle 33 and the upper induction circle 32; the bus 31 connects the lower induction circle 33 and the upper induction circle 32 in series to form a series path, and finally the overall appearance structure of the effective circle 3 presents a barrel shape.

[0036] The upper induction coil 32 also includes an upper induction coil inner copper sheet 321 and an upper induction coil outer copper sheet 322; the lower induction coil 33 also includes a lower induction coil inner copper sheet 331 and a lower induction coil outer copper sheet 332; the upper induction coil inner copper sheet 321 is a cylindrical copper sheet with an open side, and the bottom edge of the copper sheet is bent at a right angle. Finally, the overall appearance of the upper induction coil inner copper sheet 321 is an L-shaped non-closed cylindrical copper sheet; the structures of the upper induction coil outer copper sheet 322, the lower induction coil inner copper sheet 331 and the lower induction coil outer copper sheet 332 are the same as the structure of the upper induction coil inner copper sheet 321.

[0037] The upper induction coil inner copper sheet 321 and the upper induction coil outer copper sheet 322 in the upper induction coil 32 are vertically combined to form a cylindrical shape with a hollow inner wall. There is a welding gap 35 on the side of the cylinder. In addition, the lower induction coil 33 is symmetrically arranged with the upper induction coil 32.

[0038] The shielding ring 2 includes a first cooling water inlet and outlet pipe 211, a second cooling water inlet and outlet pipe 212 and a shielding ring 22; the first cooling water inlet and outlet pipe 211 and the second cooling water inlet and outlet pipe 212 are symmetrically arranged on the shielding ring 22; the first cooling water inlet and outlet pipe 211 and the second cooling water inlet and outlet pipe 212 are both hollow pipes, and there is a clearance fit between the shielding ring 22 and the workpiece.

[0039] The contact base 1 includes a first water-permeable copper tube 111, a second water-permeable copper tube 112, a first power supply plate 121, a second power supply plate 122, a first fixed side plate 131, a second fixed side plate 132, a first insulating fastener 141, a second insulating fastener 142, and an insulating sheet 9; the first fixed side plate 131 and the second fixed side plate 132 are vertically arranged between the first water-permeable copper tube 111 and the second water-permeable copper tube 112; an insulating sheet 9 is provided between the first fixed side plate 131 and the second fixed side plate 132; the first fixed side plate 131 and the second fixed side plate 132 and the insulating sheet 9 are fixed together by the first insulating fastener 141 and the second insulating fastener 142.

[0040] The first water-passing copper tube 111 is welded to the side of the first fixed side plate 131 and is located between the first insulating fastener 141 and the second insulating fastener 142. The second water-passing copper tube 112 is symmetrically arranged with the first water-passing copper tube 111; the first power supply plate 121 is welded to the side of the first fixed side plate 131 and is located at the rear end of the first fixed side plate 131. The second power supply plate 122 is symmetrically arranged with the first power supply plate 121; in addition, the first water-passing copper tube 111 is also fixedly welded to the first power supply plate 121. The rear end of the first water-passing copper tube 111 is welded to the front of the first power supply plate 121. The second water-passing copper tube 112 is symmetrically arranged with the first water-passing copper tube 111.

[0041] A second insulating fastener 142 is provided above the first fixed copper block 151, a first fixed side plate 131 is provided on its inner side, and a fixed plate 5 is provided below it; the inner side of the first fixed copper block 151 is welded and fixed to the side of the first fixed side plate 131, and the first fixed copper block 151 is bolted to the fixed plate 5; the second fixed copper block 152 is symmetrically arranged with the first fixed copper block 151.

[0042] The fixing plate 5 is made of high-temperature resistant and insulating epoxy resin.

[0043] The first water-passing copper tube 111 and the second water-passing copper tube 112 are aligned and welded to the upper end of the bus bar 31 , so that the first water-passing copper tube 111 and the second water-passing copper tube 112 and the bus bar 31 form a complete cooling passage.

[0044] A copper tube fixing block 4 is provided above the welding position of the first water copper tube 111 and the second water copper tube 112 and the busbar 31 ; the copper tube fixing block 4 is connected to the fixing plate 5 by bolts to further fix the welding position.

Claims

1. A barrel-shaped inductor for induction hardening of a constant velocity universal joint, comprising a contact base (1), wherein the contact base (1) is connected to a fixed plate (5) via a first fixed copper block (151) and a second fixed copper block (152); the fixed plate (5) is sleeved on a main nozzle (6), and the main nozzle (6) is engaged with an effective ring (3); a shielding ring (2) is further provided on the main nozzle (6), the shielding ring (2) is located below the fixed plate (5), and the shielding ring (2) is connected to the fixed plate (5) via a shielding ring fixing block (7), characterized in that: The shielding ring (2) is adjusted and moved up and down in the shielding ring fixing block (7), and the effective circle (3) further includes an upper induction circle (32); the upper induction circle (32) is connected to the lower induction circle (33) through a connecting pipe (34), forming an induction mode of upper and lower double induction circles; a bus (31) is provided on the inner side of the lower induction circle (33) and the upper induction circle (32); the bus (31) connects the lower induction circle (33) and the upper induction circle (32) in series, forming a series path, and finally the overall appearance structure of the effective circle (3) presents a barrel shape.

2. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 1, characterized in that: The upper induction coil (32) further comprises an upper induction coil inner copper sheet (321) and an upper induction coil outer copper sheet (322); the lower induction coil (33) further comprises a lower induction coil inner copper sheet (331) and a lower induction coil outer copper sheet (332); the upper induction coil inner copper sheet (321) is a cylindrical copper sheet with an open side, the bottom edge of which is bent at a right angle, and the upper induction coil inner copper sheet (321) has an overall appearance of an L-shaped open cylindrical copper sheet; the structures of the upper induction coil outer copper sheet (322), the lower induction coil inner copper sheet (331) and the lower induction coil outer copper sheet (332) are the same as the structure of the upper induction coil inner copper sheet (321).

3. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 2, characterized in that: The upper induction coil inner copper sheet (321) and the upper induction coil outer copper sheet (322) in the upper induction coil (32) are vertically combined to form a cylindrical shape with a hollow inner wall. A welding gap (35) is provided on the side of the cylindrical shape. In addition, the lower induction coil (33) and the upper induction coil (32) are symmetrically arranged.

4. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 1, characterized in that: The shielding ring (2) comprises a first cooling water inlet and outlet pipe (211), a second cooling water inlet and outlet pipe (212) and a shielding ring (22); the first cooling water inlet and outlet pipe (211) and the second cooling water inlet and outlet pipe (212) are symmetrically arranged on the shielding ring (22); the first cooling water inlet and outlet pipe (211) and the second cooling water inlet and outlet pipe (212) are both hollow pipes, and there is a clearance fit between the shielding ring (22) and the workpiece.

5. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 1, characterized in that: The contact base (1) comprises a first water-passing copper tube (111), a second water-passing copper tube (112), a first power supply plate (121), a second power supply plate (122), a first fixed side plate (131), a second fixed side plate (132), a first insulating fastener (141), a second insulating fastener (142), and an insulating sheet (9); the first fixed side plate (131) and the second fixed side plate (132) are vertically arranged between the first water-passing copper tube (111) and the second water-passing copper tube (112); an insulating sheet (9) is provided between the first fixed side plate (131) and the second fixed side plate (132); the first fixed side plate (131), the second fixed side plate (132) and the insulating sheet (9) are fixed together by the first insulating fastener (141) and the second insulating fastener (142).

6. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 5, characterized in that: The first water-passing copper tube (111) is welded to the side of the first fixed side plate (131) and is located between the first insulating fastener (141) and the second insulating fastener (142), and the second water-passing copper tube (112) is symmetrically arranged with the first water-passing copper tube (111); the first power supply plate (121) is welded to the side of the first fixed side plate (131) and is located at the rear end of the first fixed side plate (131), and the second power supply plate (122) is symmetrically arranged with the first power supply plate (121); in addition, the first water-passing copper tube (111) is also fixedly welded to the first power supply plate (121), the rear end of the first water-passing copper tube (111) is welded to the front of the first power supply plate (121), and the second water-passing copper tube (112) is symmetrically arranged with the first water-passing copper tube (111).

7. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 5, characterized in that: A second insulating fastener (142) is provided above the first fixed copper block (151), a first fixed side plate (131) is provided inside the first fixed copper block (151), and a fixed plate (5) is provided below the first fixed copper block (151); the inner side of the first fixed copper block (151) is welded and fixed to the side of the first fixed side plate (131), and the first fixed copper block (151) is bolted to the fixed plate (5); the second fixed copper block (152) is symmetrically arranged with the first fixed copper block (151).

8. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 1, characterized in that: The fixing plate (5) is made of high-temperature resistant insulating epoxy resin.

9. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 5, characterized in that: The first water-passing copper tube (111) and the second water-passing copper tube (112) are aligned and welded to the upper end of the busbar (31), so that the first water-passing copper tube (111), the second water-passing copper tube (112) and the busbar (31) form a complete cooling passage.

10. The barrel-shaped inductor for induction hardening of a constant velocity universal joint according to claim 9, characterized in that: A copper tube fixing block (4) is provided above the welding position of the first water-passing copper tube (111) and the second water-passing copper tube (112) and the busbar (31); the copper tube fixing block (4) is connected to the fixing plate (5) by bolts to further fix the welding position.

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