Tool for quenching and charging oversize bearing ring
By designing a tooling including spacers and limiting devices in the quenching treatment of extra-large bearing rings, the problems of poor stability and low production efficiency in the quenching treatment are solved, and a more efficient and stable production process is achieved.
Patent Information
- Application Number
- CN202421348454.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-13
AI Technical Summary
In the prior art, the super-large bearing rings are poor in stability during quenching and low efficiency in loading methods, resulting in poor stability and long production cycle, which increases costs.
A super-large bearing ring quenching loading tool is designed. By evenly distributing several cylindrical spacers with central through holes between the quenching frames, and providing support plates and limit grooves on the spacers, combining positioning ends and fastening bolts, ensuring that the ferrule and limiting device are stable.
It improves the stability of bearing rings in quenching treatment, enhances the furnace loading volume, reduces production costs, and achieves more efficient production.
Smart Images
Figure CN222665939U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing heat treatment, in particular to a tool for quenching and charging of an extra-large bearing ring. Background Art
[0002] In the prior art, when the heat treatment and quenching of extra-large bearing rings are processed in a pit furnace, the rings are stacked and placed on a quenching rack. One rack of rings is loaded into one furnace, and then quenching treatment is performed.
[0003] In recent years, with the demand of wind power market, the size of this type of bearing rings has gradually increased. The current loading method for quenching has the following disadvantages: First, the current loading method is that the bearing rings are directly stacked on the quenching rack, and there is no limit device in the center, so the stability is poor; second, the current loading method has the disadvantages of low output and long production cycle, which relatively increases the cost. Utility Model Content
[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a tool for quenching and charging of extra-large bearing rings.
[0005] The technical solution adopted by the utility model is:
[0006] A tool for quenching and loading extra-large bearing rings, comprising at least two layers of quenching racks, with a plurality of spacers evenly distributed between any two adjacent layers of quenching racks, the spacer being a cylindrical structure with a central through hole, the central through hole being arranged along the axial direction of the cylindrical structure, the outer peripheral surface of the cylindrical structure also being provided with a plurality of ventilation holes distributed along the circumferential direction, a lower support plate and an upper support plate having a diameter greater than the diameter of the cylindrical structure being respectively provided at the bottom and the top of the cylindrical structure, a limiting groove for installing the lower support plate corresponding to each spacer being respectively provided on the plate surface of the lower quenching rack, a positioning end head matching the central through hole on the spacer being fixedly provided in the limiting groove, the lower support plate of the spacer being confined in the limiting groove by a limiting block and a fastening bolt.
[0007] As a preferred solution, at least three spacers are evenly distributed between any two adjacent quenching racks.
[0008] As a preferred solution, the depth of the limiting groove is the same as the thickness of the lower supporting plate in the spacer sleeve.
[0009] As a preferred solution, a plurality of ventilation holes are provided on the outer surface of the cylindrical structure along the circumferential direction, and reinforcing ribs are also provided on the outer surface of the cylindrical structure between any two adjacent ventilation holes.
[0010] As a preferred solution, any one of the ventilation holes is respectively connected to the central through hole, and the ventilation holes are rectangular in shape.
[0011] As a preferred solution, a limiting groove structure matching the shape of the upper support plate in the spacer is provided on the lower plate surface of the upper quenching rack.
[0012] As a preferred solution, the positioning end and the central through hole are in transitional fit.
[0013] As a preferred solution, the positioning end is arranged at the center of the limiting groove and is formed as an integral structure with the lower quenching frame.
[0014] The beneficial effects of the utility model are:
[0015] Based on the defects of the prior art, the present invention provides a tool for quenching and loading of extra-large bearing rings. By optimizing the structural design, a plurality of spacers are evenly distributed between any two adjacent quenching racks. The spacer is a cylindrical structure with a central through hole. The outer peripheral surface of the cylindrical structure is provided with a plurality of ventilation holes distributed in the circumferential direction. A lower support plate and an upper support plate with a diameter greater than the diameter of the cylindrical structure are respectively provided at the bottom and the top of the cylindrical structure. A limiting groove for installing the lower support plate is respectively provided on the plate surface of the lower quenching rack corresponding to each spacer. At the same time, a positioning end head matching the central through hole on the spacer is fixedly provided in the limiting groove. The lower support plate of the spacer is limited in the limiting groove by a limiting block and a fastening bolt. In this way, under this loading method, a plurality of limiting devices are arranged on the quenching rack in cooperation with the spacer, and the bearing rings are directly stacked on the quenching rack and cooperate with the limiting device, so as to have better stability. Secondly, the multi-layer quenching rack is used in cooperation with the spacer to increase the amount of ring loading and reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the utility model;
[0018] Figure 2 for Figure 1 Schematic diagram of the coordination between the middle limit stopper and the spacer;
[0019] Figure 3 It is a schematic diagram of the structure of the spacer;
[0020] Figure 4 for Figure 3 Structural cross-section view along line AA.
[0021] Reference numerals: 1, bearing ring, 2, spacer, 21, upper support plate, 22, lower support
[0022] Plate, 23, ventilation hole, 24, reinforcement rib, 3, quenching frame, 31, positioning end, 4, fastening bolt, 5, limit stop. DETAILED DESCRIPTION
[0023] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.
[0024] It should be noted that: unless otherwise defined, the technical terms or scientific terms used in this article should be understood by people with ordinary skills in the field to which the utility model belongs. The words "one", "an" or "the" and the like used in the patent application specification and claims of this utility model do not express quantitative restrictions, but indicate the existence of at least one; the "first", "second" and "third" used in this article should not be regarded as restrictions on the order of components, but are only used to distinguish different components; "include" or "comprise" and other similar words indicate that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, but do not exclude other elements or objects with the same function.
[0025] Embodiment 1
[0026] In order to more clearly describe the specific structural composition of the tooling for quenching and charging of extra-large bearing rings, Figure 1-4 Describe this embodiment:
[0027] like Figure 1-2As shown, a tool for quenching and charging of extra-large bearing rings. In this embodiment, the tool consists of two layers of quenching racks 3 and a spacer 2 arranged between the two layers of quenching racks. It should be noted that: a number of spacers are evenly distributed between any two adjacent layers of quenching racks. For example, three spacers can be arranged, and the three spacers are spaced 120° apart from each other to form a triangular support, which has better support stability; the spacer 2 is a cylindrical structure with a central through hole, and a plurality of ventilation holes 23 distributed in the circumferential direction are arranged on the outer peripheral surface of the cylindrical structure, and a lower support plate 22 and an upper support plate 23 having a diameter larger than the diameter of the cylindrical structure are respectively arranged at the bottom and top of the cylindrical structure. Plate 21, a limiting groove for installing the lower support plate 22 is respectively provided on the plate surface of the lower quenching rack 3 corresponding to each spacer 2, and a positioning end head 31 matching the central through hole on the spacer is fixedly provided in the limiting groove. Therefore, when the lower support plate 22 of the spacer is placed in the limiting groove and limited, the positioning end head 31 is just located in the central through hole of the spacer 2, and then the limiting stopper 5 is pressed against the plate surface of the lower support plate 22 to prevent the lower support plate from tilting, and the fastening bolt 4 is passed through the hole on the limiting stopper 5 and tightened on the plate surface of the lower quenching rack 3, and finally the lower support plate 22 of the spacer 2 is limited in the limiting groove by the limiting stopper 5 and the fastening bolt 4.
[0028] In this embodiment, Figure 3-4 As shown, the spacer 2 has eight rectangular ventilation holes 23 evenly opened in the circumferential direction on the cylindrical surface of its cylindrical structure, and the ventilation holes 23 are respectively connected to the central through hole. Such an arrangement reduces weight and is conducive to ventilation and uniform heating; secondly, the upper and lower end faces of the spacer 2 are two planes, respectively constituting an upper support plate 21 and a lower support plate 22. The outer diameters of the two support plates exceed the outer diameter of the cylindrical structure to form a step for support. Eight reinforcing ribs 24 are also evenly distributed in the circumferential direction on the outer cylindrical surface of the cylindrical structure to support the upper quenching rack and the ring, and the positions of the reinforcing ribs 24 are staggered with the ventilation holes 23.
[0029] In this embodiment, the depth of the limit groove is the same as the thickness of the lower support plate in the spacer sleeve 2, so that the lower support plate 22 of the spacer sleeve 2 sinks into the limit groove. After placement, the lower support plate 22 is flush with the plate surface of the quenching frame to facilitate the installation of the limit block 5 and the fastening bolts 4.
[0030] In this embodiment, in order to improve the stability of the entire tooling, a limiting groove structure matching the shape of the upper support plate in the spacer is also provided on the lower plate surface of the upper quenching rack.
[0031] In this embodiment, the positioning end head 31 is transitionally matched with the central through hole to achieve stable matching between the spacer sleeve and the quenching frame; the positioning end head is arranged at the center of the limiting groove and is formed as an integral structure with the lower quenching frame, for example: the positioning end head can be directly cast on the lower quenching frame, and the height of the positioning end head is preferably 100~200mm. The positioning of the positioning end head is combined with the limiting effect of the limiting block 5 and the fastening bolt 4 to ensure that the spacer sleeve does not tilt or shake during operation, so as to avoid the product falling, bumping and safety hazards caused by the instability of the spacer sleeve; at the same time, the structure does not affect the taking and placing of the spacer sleeve, and is easy to operate.
[0032] In this solution, the number of spacers is flexibly controlled according to the free area and evenly distributed along the circumference of the lower quenching rack; the design height of the spacers is not only greater than the length of the lower quenching rack hanger to prevent the upper quenching rack from pressing the lower quenching rack hanger, but also needs to ensure that after assembly, the upper quenching rack hanging ring is at a certain distance from the furnace cover, and the total height cannot affect the normal opening and closing of the furnace cover.
[0033] By setting up the above structure, it has been verified on site that the charging tooling for quenching of super-large bearing rings is simple to operate, flexible to use, convenient and practical, and can fully meet the use requirements. By designing the charging tooling for quenching, the previous status quo of one furnace and one rack of products has been changed, especially for large-sized rings, the idle area is fully utilized, the purpose of one furnace and multiple racks is achieved, and the production increase effect is significant.
[0034] Embodiment 2
[0035] The structures of the quenching frame and the limiting device in this embodiment are exactly the same as those in the first embodiment. Considering that the size of the bearing ring is large, resulting in a large idle area, the space cannot be fully utilized. Therefore, the internal structure of the spacer can be slightly optimized. For example, the pull rod in the lower spacer can be omitted, and multiple step plates of different heights can be welded inside the spacer. In combination with the isolation plate, multiple layers of small bearing parts that need to be quenched can be placed to make more effective use of the space.
[0036] The parts not described in detail in this embodiment are prior art.
[0037] It should be noted that although the utility model is described through the above embodiments, the utility model can also have other multiple embodiments. Without departing from the spirit and scope of the utility model, it is obvious that those skilled in the art can make various corresponding changes and deformations to the utility model, but these changes and deformations should all fall within the scope of protection of the attached claims of the utility model and their equivalents.
Claims
1. A tool for quenching and charging of extra-large bearing rings, characterized in that: The invention comprises at least two layers of quenching racks, wherein a plurality of spacers are evenly distributed between any two adjacent layers of quenching racks, wherein the spacer is a cylindrical structure with a central through hole, wherein the central through hole is arranged along the axial direction of the cylindrical structure, and a plurality of ventilation holes distributed along the circumferential direction are also arranged on the outer peripheral surface of the cylindrical structure, and a lower support plate and an upper support plate with a diameter greater than the diameter of the cylindrical structure are respectively arranged at the bottom and the top of the cylindrical structure, and a limiting groove for installing the lower support plate is respectively arranged on the plate surface of the lower quenching rack corresponding to each spacer, and a positioning end head matching the central through hole on the spacer is fixedly arranged in the limiting groove, and the lower support plate of the spacer is confined in the limiting groove by a limiting block and a fastening bolt.
2. The tooling for quenching and charging of extra-large bearing rings according to claim 1, characterized in that: At least three spacers are evenly distributed between any two adjacent quenching racks.
3. The tooling for quenching and charging of extra-large bearing rings according to claim 1, characterized in that: The depth of the limiting groove is the same as the thickness of the lower supporting plate in the spacer sleeve.
4. The tooling for quenching and charging of extra-large bearing rings according to claim 1, characterized in that: The outer surface of the cylindrical structure is provided with a plurality of ventilation holes along the circumferential direction, and reinforcing ribs are further provided on the outer surface of the cylindrical structure between any two adjacent ventilation holes.
5. The tooling for quenching and charging of extra-large bearing rings according to claim 1, characterized in that: Any of the ventilation holes is respectively connected to the central through hole, and the ventilation holes are in a rectangular shape.
6. The tooling for quenching and charging of extra-large bearing rings according to claim 1, characterized in that: A limiting groove structure matching the shape of the upper supporting plate in the spacer is arranged on the lower plate surface of the upper quenching frame.
7. The tooling for quenching and charging of extra-large bearing rings according to claim 1, characterized in that: The positioning end and the central through hole are in transitional fit.
8. The tooling for quenching and charging of extra-large bearing rings according to claim 7, characterized in that: The positioning end head is arranged at the center of the limiting groove and is formed as an integral structure with the lower quenching frame.