Rotary table device for induction hardening

Abstract

The invention discloses a rotary table device for induction hardening, which relates to the technical field of induction hardening, and comprises a rotary table, at least one annular ground rail and a plurality of support arms, the annular ground rails are sequentially and concentrically arranged on the outer side of the rotary table in a surrounding mode, and the diameter of each annular ground rail is larger than that of the rotary table. The supporting arms are distributed on the rotary table in the radial direction, and the ends of the supporting arms stretch out of the rotary table and then are provided with supporting idler wheels corresponding to the annular ground rails. The invention can solve the problems of bearing capacity and rotation precision, and can be suitable for workpieces with the diameter of 3-20 meters.

Description

Technical Field

[0001] The invention relates to the technical field of induction hardening, in particular to a turntable device used for induction hardening. Background Art

[0002] In induction hardening, the turntable device often plays the role of supporting, fixing, and driving the workpiece to rotate. It is widely used in the quenching of large parts such as the inner ring of wind turbine bearings, the outer ring of wind turbine bearings, and the rotating gear ring. At present, the size of bearings and gear rings is getting larger and larger, and more and more large-diameter bearings and gear rings are widely used, which poses a challenge to the load-bearing capacity and rotation accuracy of the turntable. In the past, the maximum load-bearing diameter of the turntable was often 6 meters to 8 meters, and the end of the turntable support arm would be slightly deformed due to the weight of the workpiece, affecting the indexing accuracy of the turntable device and the quenching quality. Sometimes the turntable transmission torque is insufficient, and the workpiece rotation speed is insufficient, which affects the quenching quality.

[0003] The Chinese patent document "A single gantry quenching machine for induction quenching" (patent application number: 202321529118.4) and the Chinese patent document "A quenching device for slewing bearing raceway without soft belt") (patent application number: 201910546961.5) respectively disclose a turntable device, but the above turntable device does not solve the technical problems of load-bearing capacity and rotation accuracy. Summary of the invention

[0004] In view of the defects existing in the prior art, the object of the present invention is to provide a turntable device for induction hardening, which can solve the problems of load-bearing capacity and rotation accuracy and can be applicable to workpieces with a diameter of 3-20 meters.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a turntable device for induction quenching, including a turntable, and also including at least one annular ground rail and a plurality of support arms; each annular ground rail is concentrically arranged on the outer side of the turntable in sequence, and the diameter of each annular ground rail is larger than the diameter of the turntable; each support arm is radially distributed on the turntable, and the end of the support arm is extended from the turntable and is provided with a support roller corresponding to each annular ground rail.

[0006] A further improvement is that the turntable includes a base, a turntable is arranged on the top of the base, and a driving component for driving the turntable to rotate is arranged on the side of the base.

[0007] A further improvement is that reinforcing arms corresponding to each supporting arm are arranged at the edge of the rotating disk.

[0008] A further improvement is that: a radial guide rail is arranged on the support arm, and a slide seat is slidably arranged on the radial guide rail, and a support column for supporting and positioning the workpiece is arranged on the slide seat.

[0009] A further improvement is that a scale is provided on the side of at least one of the support arms, and the slide seat is provided with a pointer corresponding to the scale.

[0010] A further improvement is that a sealing plate is provided between every two adjacent support arms.

[0011] A further improvement is that a mounting plate is provided at the bottom of the support arm.

[0012] A further improvement is that the annular ground rail is formed by splicing a plurality of arc-shaped spliced ​​bodies.

[0013] A further improvement is that: an arc-shaped slide rail is arranged on the top of the arc-shaped splicing body, and a foot and an anchor are arranged on the bottom of the arc-shaped splicing body.

[0014] A further improvement is that: the arc-shaped splicing body is provided with a weight-reducing hole.

[0015] The beneficial effects of the present invention are:

[0016] 1. In the present invention, a support roller is installed on the bottom surface of the support arm, which can maintain the stability of the workpiece during the process of driving the workpiece to rotate and improve the quenching quality; the support roller is on the turntable ground rail and plays a role in sharing part of the workpiece mass at the far end of the support arm, which can increase the maximum load-bearing mass of the turntable device as a whole; the support roller rolls on the ground rail to reduce the torque of the support arm, improve the rotation accuracy of the turntable device, and improve the quenching quality.

[0017] 2. In the present invention, each annular ground rail is concentrically arranged on the outer side of the turntable in sequence, thereby reducing the mass of the workpiece carried by a single support arm and improving the indexing accuracy of the turntable device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional diagram of a turntable device for induction hardening in an embodiment of the present invention;

[0019] Figure 2 A stereoscopic diagram of a turntable device for induction hardening in another embodiment of the present invention;

[0020] Figure 3 It is a front view of a turntable device for induction hardening in an embodiment of the present invention;

[0021] Figure 4 is a top view of a turntable device for induction hardening in an embodiment of the present invention;

[0022] Figure 5 is a cross-sectional view of a turntable device for induction hardening in an embodiment of the present invention;

[0023] Figure 6 A three-dimensional diagram of a turntable in an embodiment of the present invention;

[0024] Figure 7 is a front view of a turntable in an embodiment of the present invention;

[0025] Figure 8 is a top view of a turntable in an embodiment of the present invention;

[0026] Fig. 9 is a three-dimensional diagram of a support arm in an embodiment of the present invention;

[0027] Fig.10 A three-dimensional diagram of a circular ground rail in an embodiment of the present invention;

[0028] Fig.11 It is a front view of the annular ground rail in an embodiment of the present invention;

[0029] Fig.12 It is a three-dimensional diagram of an arc-shaped splicing body in an embodiment of the present invention.

[0030] Reference numerals:

[0031] 1-turntable; 11-base; 12-turntable; 13-driving component; 14-reinforcement arm;

[0032] 2-support arm; 21-radial guide rail; 22-slide seat; 23-support column; 24-support roller; 25-mounting plate; 26-ruler; 27-pointer;

[0033] 3-annular ground rail; 31-arc splicing body; 32-arc slide rail; 33-foot; 34-weight reduction hole; 35-anchor;

[0034] 4-Seal the board. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0036] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0037] The following is a further description of the specific embodiments of the present invention in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the present invention are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the present invention, but cannot be understood as limiting the present invention.

[0038] See also Figure 1 to Figure 5 As shown, an embodiment of the present invention provides a turntable device for induction hardening, including a turntable 1, at least one annular ground rail 3 and a plurality of support arms 2; each annular ground rail 3 is sequentially and concentrically arranged on the outer side of the turntable 1, and the diameter of each annular ground rail 3 is larger than the diameter of the turntable 1; each support arm 2 is radially distributed on the turntable 1, and the end of the support arm 2 is extended from the turntable 1 and provided with a support roller 24 corresponding to each annular ground rail 3. Multiple support rollers can be arranged on a single workpiece support arm according to the specifications of the workpiece, and the support arm can be increased or decreased in number and adjusted in length according to the size and quality of the workpiece, and the support rollers increase or decrease with the number of workpiece support arms.

[0039] See also Figure 6 to Figure 8 As shown, the turntable 1 includes a base 11, a turntable 12 is arranged on the top of the base 11, and a driving component 13 for driving the turntable 12 to rotate is arranged on the side of the base 11. Specifically, a reinforcing arm 14 corresponding to each supporting arm 2 is arranged at the edge of the turntable 12.

[0040] See also Fig. 9 As shown, a radial guide rail 21 is provided on the support arm 2, and a slide 22 is slidably provided on the radial guide rail 21, and a support column 23 for supporting and positioning a workpiece is provided on the slide 22. Specifically, a scale 26 is provided on the side of at least one support arm 2, and a pointer 27 corresponding to the scale 26 is provided on the slide 22. A sealing plate 4 is provided between each two adjacent support arms 2. A mounting plate 25 is provided at the bottom of the support arm 2.

[0041] See also Figure 10 to Figure 12 As shown, the annular ground rail 3 is formed by splicing (welding or casting) a plurality of arc-shaped splicing bodies 31. Specifically, an arc-shaped slide rail 32 is provided at the top of the arc-shaped splicing body 31, and a foot 33 and an anchor 35 are provided at the bottom of the arc-shaped splicing body 31. The arc-shaped splicing body 31 is provided with a weight-reducing hole 34. The number and size of the ground rails can be changed according to the workpiece, and multiple turns of the turntable ground rails can be set according to the specifications of the workpiece.

[0042] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the well-known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A turntable device for induction hardening, comprising a turntable (1), characterized in that: It also includes at least one annular ground rail (3) and a plurality of support arms (2); Each annular ground rail (3) is sequentially and concentrically arranged on the outer side of the turntable (1), and the diameter of each annular ground rail (3) is greater than the diameter of the turntable (1); Each support arm (2) is distributed radially on the turntable (1), and the end of the support arm (2) is provided with a support roller (24) corresponding to each annular ground rail (3) after extending from the turntable (1).

2. The turntable device for induction hardening according to claim 1, characterized in that: The turntable (1) comprises a base (11), a turntable (12) is arranged on the top of the base (11), and a driving component (13) for driving the turntable (12) to rotate is arranged on the side of the base (11).

3. The turntable device for induction hardening according to claim 2, characterized in that: Reinforcing arms (14) corresponding to the supporting arms (2) are arranged at the edge of the rotating disk (12).

4. The turntable device for induction hardening according to claim 1, characterized in that: The support arm (2) is provided with a radial guide rail (21), and a slide seat (22) is slidably provided on the radial guide rail (21), and a support column (23) for supporting and positioning a workpiece is provided on the slide seat (22).

5. The turntable device for induction hardening according to claim 4, characterized in that: A scale (26) is provided on the side of at least one support arm (2), and a pointer (27) corresponding to the scale (26) is provided on the slide seat (22).

6. The turntable device for induction hardening according to claim 1, characterized in that: A sealing plate (4) is provided between every two adjacent support arms (2).

7. The turntable device for induction hardening according to claim 1, characterized in that: A mounting plate (25) is provided at the bottom of the support arm (2).

8. The turntable device for induction hardening according to claim 1, characterized in that: The annular ground rail (3) is formed by splicing a plurality of arc-shaped spliced ​​bodies (31).

9. The turntable device for induction hardening according to claim 8, characterized in that: The top of the arc-shaped splicing body (31) is provided with an arc-shaped slide rail (32), and the bottom of the arc-shaped splicing body (31) is provided with a foot (33) and an anchor (35).

10. The turntable device for induction hardening according to claim 8, characterized in that: The arc-shaped splicing body (31) is provided with a weight-reducing hole (34).

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