Integral induction quenching equipment for inner and outer rings of large bearing

Abstract

The utility model discloses integral induction quenching equipment for inner and outer rings of a large bearing, which relates to the technical field of induction quenching, and comprises a workpiece turntable component and at least one load quenching component, the load quenching component comprises a load lifting upright post, and the load lifting upright post is connected with at least one load quenching beam assembly; the number of the load quenching beam assemblies is at least three, and the load quenching beam assemblies are diverged outwards with the workpiece rotary table component as the circle center and distributed at equal intervals in the circumferential direction. The quenching device has the characteristics of high production efficiency, good quenching depth uniformity, high product percent of pass and the like.

Description

Technical Field

[0001] This utility model relates to the field of induction hardening technology, specifically to an integral induction hardening device for the inner and outer rings of a large bearing. Background Technology

[0002] Large bearings play a crucial supporting role in various heavy machinery and equipment. Their main function is to bear radial and axial loads and reduce rotational friction through rolling contact. Because they operate under high load and high speed conditions, the inner and outer rings of the bearings must have high hardness and wear resistance to ensure long service life and high performance.

[0003] To meet the requirements for high hardness and high wear resistance, the inner and outer rings of large bearings are typically hardened. The hardening process alters the microstructure of the material through rapid heating and cooling, thereby significantly improving its hardness and wear resistance.

[0004] Among the existing quenching technologies, one method uses bainitic quenching, and the other uses induction hardening. Induction hardening without soft strips uses a continuous scanning quenching method, which is slow for processing large workpieces, requires a large number of equipment, and involves a large investment. On the other hand, the bainitic integral quenching process requires precise control of isothermal temperature and time, and the holding time is long, resulting in low efficiency. The deep carburizing of large bearings and the synergistic effect of bainitic phase transformation are difficult. The hardness of bainitic quenching is slightly lower than that of martensitic quenching, making it less adaptable to extreme wear-resistant scenarios.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide an integral induction hardening equipment for the inner and outer rings of large bearings, which has the characteristics of high production efficiency, good uniformity of hardening depth, and high product qualification rate.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: an integral induction hardening device for the inner and outer rings of a large bearing, including a workpiece turntable component and at least one load hardening component. The load hardening component includes a load lifting column, which is connected to at least one load hardening crossbeam assembly. At least three load hardening crossbeam assemblies are provided, and each load hardening crossbeam assembly is distributed equidistantly around the workpiece turntable component, radiating outwards from the center.

[0008] A further improvement is that each pair of adjacent load-quenching crossbeam assemblies is set at an angle adapted to the workpiece.

[0009] Further improvement lies in that the load lifting column comprises a load column, a load lifting component and a load lifting slide plate; the load lifting slide plate is arranged at the side of the load column and is used for connecting the load quenching cross beam assembly; and the load lifting component is used for driving the load lifting slide plate to lift.

[0010] Further improvement lies in that the load lifting component comprises a first screw rod and a first motor; the first screw rod is vertically arranged at the side of the load column and is connected with the load lifting slide plate; and the first motor is arranged at the top of the load column, and the driving shaft of the first motor is connected with the first screw rod.

[0011] Further improvement lies in that the load quenching component comprises a front-rear moving slide plate, a front-rear moving cross beam and a front-rear moving component; the front-rear moving slide plate is fixedly connected with the load lifting slide plate; the front-rear moving cross beam is connected with the front-rear moving slide plate, and the front end of the front-rear moving cross beam is provided with a load sensor component; and the front-rear moving component is used for driving the front-rear moving cross beam to translate.

[0012] Further improvement lies in that the front-rear moving cross beam is provided with a guide convex rib in the axial direction; the inner side of the front-rear moving slide plate is a connecting surface which is fixedly connected with the load lifting slide plate; the front-rear moving cross beam penetrates through the front-rear moving slide plate, and the front-rear moving slide plate is provided with a guide groove matched with the guide convex rib.

[0013] Further improvement lies in that the front-rear moving component comprises a second screw rod and a second motor; the second screw rod is arranged in the axial direction on the front-rear moving cross beam and is connected with the front-rear moving slide plate; the second motor is arranged at the rear end of the front-rear moving cross beam, and the driving shaft of the second motor is connected with the second screw rod.

[0014] Further improvement lies in that the workpiece rotating table component comprises a quenching water tank, a workpiece driving component and a workpiece clamping component; the workpiece clamping component is arranged in the quenching water tank, and a plurality of workpiece support arms and workpiece clamping arms are circumferentially and equidistantly arranged on the workpiece clamping component and used for supporting and clamping workpieces; and the workpiece driving component is arranged at the bottom of the quenching water tank, penetrates through the quenching water tank and is connected with the workpiece clamping component and used for driving the workpiece clamping component to rotate and lift.

[0015] Further improvement lies in that each load quenching cross beam assembly is correspondingly provided with at least one peripheral power supply component.

[0016] Further improvement lies in that the peripheral power supply component comprises a power supply cabinet and a control cabinet.

[0017] The utility model discloses beneficial effect lies in:

[0018] 1. The load quenching beam assembly is provided with at least three load quenching beam assemblies, and each load quenching beam assembly is distributed at equal intervals in a circle with the workpiece rotating table part as the center. Each adjacent two load quenching beam assemblies are arranged at an included angle θ matched with the workpiece, and the formed included angle can meet the quenching needs of workpieces of various sizes. The heating range of a single load quenching part is determined according to the size of the workpiece and the size of the inductor, and when multiple load quenching parts are operated cooperatively, the overall quenching effect can be achieved. According to the size of the workpiece and the size of the inductor, the overall quenching effect is also different.

[0019] 2. When multiple load quenching beam assemblies heat different workpieces, the load quenching inductor can be replaced to heat the inner side or the outer side, the quenching mode can be selected as spray quenching and liquid immersion quenching, and a single heating load inductor can also be used to scan the workpiece. The machine tool has a wide range of uses and various processing modes, and the cooling mode is flexible, which greatly improves the application range of the machine tool.

[0020] 3. The workpiece lifting mode is various, and various modes such as hydraulic, pneumatic and electric can be selected, and the actual situation can be flexibly selected.

[0021] 4. Multiple power supplies and multiple stations can adjust the energy output according to different workpieces, save energy and protect the environment, and multiple power supplies can better adjust the heating and cooling process, so that better quenching effect can be obtained. By using multiple power supplies, the current density of the heating area can be increased, the heating time can be shortened, the production efficiency can be improved, and the quenching quality can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the overall induction quenching equipment for large bearing inner and outer rings in the embodiment of the utility model;

[0023] Figure 2 It is a top view of the overall induction quenching equipment for large bearing inner and outer rings in the embodiment of the utility model;

[0024] Figure 3 It is a perspective view of the workpiece rotating table part in the embodiment of the utility model;

[0025] Figure 4 It is a top view of the workpiece rotating table part in the embodiment of the utility model;

[0026] Figure 5 It is a sectional view of the workpiece rotating table part in the embodiment of the utility model;

[0027] Figure 6 It is a perspective view of the load quenching part in the embodiment of the utility model;

[0028] Figure 7 It is a perspective view of the load quenching part in the embodiment of the utility model;

[0029] Figure 8 is a perspective view of the load lifting column in the embodiment of the utility model;

[0030] Figure 9 is a perspective view of the load quenching cross beam assembly in the embodiment of the utility model;

[0031] Figure 10 is a perspective view of the load quenching cross beam assembly from another angle in the embodiment of the utility model.

[0032] Reference signs:

[0033] 1-workpiece turntable component;11-quenching water tank;12-workpiece driving component;121-turntable component;122-turntable spindle;123-lifting driving mechanism;124-rotary driving mechanism;13-workpiece clamping component;131-workpiece support arm;132-workpiece clamping arm;

[0034] 2-load quenching component;21-load lifting column;211-load column;212-load lifting component;2121-first lead screw;2122-first motor;213-load lifting slide;22-load quenching cross beam assembly;221-front and rear moving cross beam;2211-guiding convex rib;222-front and rear moving slide;2221-connection surface;2222-guiding groove;223-front and rear moving component;2231-second lead screw;2232-second motor;224-load inductor component;

[0035] 3-outer power supply component. DETAILED DESCRIPTION

[0036] The embodiments of the utility model are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout.

[0037] In the description of the utility model, it needs to be explained that for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and only for the convenience of narrating the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0038] In addition, the terms "first", "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implying a specific number of technical features. Therefore, the definition of "first", "second" features can explicitly or implicitly include one or more features, and in the description of the utility model, the meaning of "several", "several" is two or more than two, unless otherwise explicitly specified.

[0039] The technical scheme of the utility model and its beneficial effects will be clearer and more explicit by further describing the specific embodiments of the utility model in combination with the accompanying drawings of the specification. The description of the embodiments by referring to the accompanying drawings is exemplary and is intended to explain the utility model, but cannot be understood as limiting the utility model.

[0040] Referring to Figure 1 and Figure 2 The utility model embodiment provides a kind of overall induction quenching equipment of large bearing inner and outer ring, including workpiece rotary table component 1, it further includes at least one load quenching component 2, the load quenching component 2 includes load lifting column 21, at least one load quenching beam assembly 22 is connected with the load lifting column 21;Load quenching beam assembly 22 is provided with at least three, each load quenching beam assembly 22 is outward divergent according to the equidistance distribution of circumference with workpiece rotary table component 1 as center.Every two adjacent load quenching beam assembly 22 is set with the included angle that is adapted to workpiece.In the embodiment, four load quenching beam assembly 22 are used to work and are described, which does not mean that only four load quenching beam assembly 22 can be used, and three or more load quenching beam assembly 22 and three or more heating power sources can be used for processing.The number of column can be one or more combinations, load quenching beam assembly 22 can be fixedly installed on a single column, or multiple load quenching beam assembly 22 can share a column, for the convenience of description, in the embodiment, one load quenching beam assembly 22 (one load quenching beam assembly 22 can be equipped with one or more heating power sources) is fixed on each column.

[0041] Referring to Figures 6 to 8 Load lifting column 21 includes load column 211, load lifting component 212 and load lifting slide plate 213;Load lifting slide plate 213 is arranged on the side surface of load column 211, and load lifting slide plate 213 is used to connect load quenching beam assembly 22;Load lifting component 212 is used to drive load lifting slide plate 213 to lift.Load lifting component 212 includes first screw rod 2121 and first motor 2122;First screw rod 2121 is vertically arranged on the side surface of load column 211 and is connected with load lifting slide plate 213;First motor 2122 is arranged on the top of load column 211, and the driving shaft of first motor 2122 is connected with first screw rod 2121.

[0042] Referring to Figure 9 and Figure 10 As shown in the figure, the load quenching component 2 comprises a front and rear moving sliding plate 222, a front and rear moving crossbeam 221 and a front and rear moving component 223; the front and rear moving sliding plate 222 is fixedly connected with the load lifting sliding plate 213; the front and rear moving crossbeam 221 is connected with the front and rear moving sliding plate 222, and the front end of the front and rear moving crossbeam 221 is provided with a load sensor component 224; the front and rear moving component 223 is used for driving the front and rear moving crossbeam 221 to translate. Specifically, the front and rear moving crossbeam 221 is provided with a guide convex rib 2211 in the axial direction; the inner side of the front and rear moving sliding plate 222 is a connecting surface 2221, which is fixedly connected with the load lifting sliding plate 213; the front and rear moving crossbeam 221 penetrates through the front and rear moving sliding plate 222, and the front and rear moving sliding plate 222 is provided with a guide groove 2222 matched with the guide convex rib 2211. The front and rear moving component 223 comprises a second lead screw 2231 and a second motor 2232; the second lead screw 2231 is arranged in the axial direction on the front and rear moving crossbeam 221 and connected with the front and rear moving sliding plate 222, and the second motor 2232 is arranged at the rear end of the front and rear moving crossbeam 221, and the driving shaft of the second motor 2232 is connected with the second lead screw 2231.

[0043] Referring to Figures 3 to 5 As shown in the figure, the workpiece rotary table component 1 comprises a quenching water tank 11, a workpiece driving component 12 and a workpiece clamping component 13; the workpiece clamping component 13 is arranged in the quenching water tank 11, and a plurality of workpiece support arms 131 and workpiece clamping arms 132 are installed on the workpiece clamping component 13 at equal intervals in the circumferential direction, for supporting and clamping workpieces; the workpiece driving component 12 is installed at the bottom of the quenching water tank 11 and connected with the workpiece clamping component 13 through the quenching water tank 11, for driving the workpiece clamping component 13 to rotate and lift. The connection between the quenching water tank and the workpiece driving component is well sealed. The quenching water tank can adopt a ring mechanism, a polygonal structure, a special-shaped structure, etc., and the corresponding shape can be designed according to actual needs. Specifically, the workpiece driving component 12 comprises a rotary table component 121, a rotary table main shaft 122, a lifting driving mechanism 123 and a rotating driving mechanism 124; the rotary table component 121 is arranged in the quenching water tank 11, the upper end of the rotary table main shaft 122 penetrates into the quenching water tank 11 and is connected with the rotary table component 121, the lifting driving mechanism 123 is connected with the lower end of the rotary table main shaft 122, for driving the rotary table main shaft 122 to drive the rotary table component 121 to lift; the rotating driving mechanism 124 is connected with the rotary table main shaft 122, for driving the rotary table main shaft 122 to drive the rotary table component 121 to rotate.

[0044] Referring to Figure 1 and Figure 2As shown, each load-hardening crossbeam assembly 22 is equipped with at least one peripheral power supply component 3. The peripheral power supply component 3 includes a power supply cabinet and a control cabinet. The number of power supply cabinets and control cabinets is mainly determined by the number of load-hardening components on the machine tool.

[0045] The working principle of this utility model is as follows:

[0046] After the workpiece is mounted and fixed on the workpiece turntable component, the workpiece drive component drives the workpiece clamping component to move to the appropriate position. Once the workpiece reaches the appropriate position, the servo motor controls the load lifting component and the forward and backward moving component to bring the load sensor component to the appropriate position. After multiple load quenching components reach the appropriate position, the components cooperate with each other to form an overall quenching effect. Then, the workpiece drive component drives the workpiece clamping component to rotate, and the load sensor component starts heating. After heating to the appropriate quenching temperature, the load sensor component stops heating and moves away from the quenching surface. The workpiece drive component drives the workpiece clamping component to descend into the quenching water tank, where the workpiece is quenched (a water spray cooling system can also be added to the load sensor component to complete the quenching of the workpiece, which can be selected as needed). After quenching is completed, the workpiece drive component drives the workpiece clamping component to rise and move to the appropriate position to remove the workpiece, thus completing an overall quenching process.

[0047] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A unit for induction hardening of inner and outer rings of large bearings, comprising a workpiece turntable unit (1), characterized in that: Also include at least one load quenching component (2), the load quenching component (2) includes load lifting column (21), at least one load quenching crossbeam assembly (22) is connected with the load lifting column (21); The load quenching crossbeam assembly (22) is provided with at least three, and each load quenching crossbeam assembly (22) is distributed in the circumferential equidistance according to the workpiece rotary table component (1) as the center of divergence.

2. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 1, characterized in that: Every two load quenching crossbeam assembly (22) adjacent is set with the included angle that workpiece is adapted.

3. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 1, characterized in that: The load lifting column (21) includes a load column (211), a load lifting component (212) and a load lifting slide plate (213); The load lifting slide plate (213) is arranged on the side of the load column (211), and the load lifting slide plate (213) is used for connecting the load quenching crossbeam assembly (22); The load lifting component (212) is used to drive the load lifting slide plate (213) to lift.

4. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 3, characterized in that: The load lifting component (212) includes a first lead screw (2121) and a first motor (2122); The first lead screw (2121) is vertically arranged on the side of the load column (211) and is connected with the load lifting slide plate (213); The first motor (2122) is arranged on the top of the load column (211), and the driving shaft of the first motor (2122) is connected with the first lead screw (2121).

5. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 3, characterized in that: The load quenching component (2) includes a front and rear moving slide plate (222), a front and rear moving crossbeam (221) and a front and rear moving component (223); The front and rear moving slide plate (222) is fixedly connected with the load lifting slide plate (213); The front and rear moving crossbeam (221) is connected with the front and rear moving slide plate (222), and the front end of the front and rear moving crossbeam (221) is provided with a load sensor component (224); The front and rear moving component (223) is used to drive the front and rear moving crossbeam (221) to translate.

6. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 5, characterized in that: The front and rear moving crossbeam (221) is provided with a guide convex rib (2211) in the axial direction; The inner side of the front and rear moving slide plate (222) is a connecting surface (2221), which is fixedly connected with the load lifting slide plate (213); The front and rear moving crossbeam (221) penetrates through the front and rear moving slide plate (222), and the front and rear moving slide plate (222) is provided with a guide groove (2222) matched with the guide convex rib (2211).

7. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 6, characterized in that: The front and rear moving component (223) includes a second lead screw (2231) and a second motor (2232); The second lead screw (2231) is arranged in the axial direction on the front and rear moving crossbeam (221) and is connected with the front and rear moving slide plate (222), and the second motor (2232) is arranged at the rear end of the front and rear moving crossbeam (221), and the driving shaft of the second motor (2232) is connected with the second lead screw (2231).

8. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 1, characterized in that: The workpiece rotary table component (1) comprises a quenching water tank (11), a workpiece driving component (12) and a workpiece clamping component (13); the workpiece clamping component (13) is arranged in the quenching water tank (11), and a plurality of workpiece support arms (131) and workpiece clamping arms (132) are circumferentially and equidistantly arranged on the workpiece clamping component (13) for supporting and clamping workpieces; the workpiece driving component (12) is arranged at the bottom of the quenching water tank (11) and connected with the workpiece clamping component (13) through the quenching water tank (11) for driving the workpiece clamping component (13) to rotate and lift.

9. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 1, characterized in that: At least one peripheral power supply component (3) is arranged corresponding to each load quenching beam assembly (22).

10. The apparatus for the integrated induction hardening of the inner and outer rings of a large bearing according to claim 9, characterized in that: The peripheral power supply component (3) comprises a power supply cabinet and a control cabinet.

Images