A charging basket for carburizing bearing rollers

Abstract

A kind of bearing roller carburizing with loading basket, it is related to carburizing tool technical field, including frame, first honeycomb plate, second honeycomb plate, support column and backing plate;Frame can be stacked up and down, bottom installs first honeycomb plate, installs second honeycomb plate around, forms basket-shaped structure;Support column is inserted with the positioning hole of first honeycomb plate by necking structure, for supporting upper layer frame;Backing plate is placed on the top of first honeycomb plate, for placing bearing roller, and the plate surface is provided with strip-shaped slot and aperture;Support column is heat-resistant steel casting, and the both ends of column body are provided with annular boss and reinforcing rib, and graphite ring sleeve is embedded in positioning hole, to reduce friction coefficient;The boss of frame top and the bottom groove form mechanical interlocking structure, to ensure the stability of stacking;First honeycomb plate is connected by buckle with frame, for easy replacement;The utility model discloses simple structure, adopts vertical stacking design, effectively utilizes carburizing equipment space, significantly improves production efficiency and reduces cost.

Description

Technical Field

[0001] This utility model relates to the field of carburizing tooling technology, and in particular to a material loading basket for carburizing bearing rollers. Background Technology

[0002] In modern industrial manufacturing, bearing rollers play a crucial role. They are indispensable components in mechanical transmission systems and are widely used in various industries such as railways, automobiles, wind power, and metallurgy. With the continuous increasing demands on bearing roller performance in these fields, carburizing heat treatment has become a key technology for enhancing the surface hardness, wear resistance, and fatigue strength of bearing rollers. However, existing carburizing loading baskets have revealed several problems in practical operation, which need to be addressed to improve production efficiency and reduce costs.

[0003] Specifically, bearing rollers require loading and placement in carburizing and quenching baskets. To increase the furnace capacity, these baskets are often stacked. However, under the high temperatures of the carburizing process, especially the baskets at the bottom bearing the weight of the rollers, are prone to deformation and sagging after repeated use. This deformation can not only cause crushing damage to the red-hot bearing rollers in the lower baskets, but also, if the surfaces of the baskets in contact with the rollers are uneven, can cause padding damage at the contact points. Once the bearing rollers suffer severe crushing or padding damage, these damages cannot be eliminated in subsequent grinding stages, leading to product scrap. These problems not only increase production costs but also reduce overall production efficiency. Therefore, improving the design and materials of existing carburizing baskets is particularly urgent. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model discloses a material loading basket for carburizing bearing rollers.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] A material loading basket for carburizing bearing rollers includes a frame as a base; and multiple frames can be stacked one on top of the other.

[0007] The first honeycomb panel is installed at the bottom of the frame, and its surface has multiple positioning holes;

[0008] The second honeycomb panel, four second honeycomb panels are respectively installed around the frame; the frame, the first honeycomb panel and the four second honeycomb panels together form a basket-shaped structure;

[0009] The support column has a necked structure at one end that can be inserted into the positioning hole to support the first honeycomb panel at the bottom of the upper frame.

[0010] A pad is placed on top of the first honeycomb plate and is used to place bearing rollers; the pad has multiple strip slots arranged in an array on its surface, and the pad has openings at the positions corresponding to the support columns, allowing the support columns to move through.

[0011] Preferably, the support column has annular bosses at both ends, and multiple reinforcing ribs are provided at circumferential intervals between two corresponding annular bosses.

[0012] Preferably, the first honeycomb panel array at the bottom of the frame has four positioning holes.

[0013] Preferably, a graphite ring is embedded in the positioning hole.

[0014] Preferably, the first honeycomb panel is detachably connected to the frame via a snap-fit ​​mechanism.

[0015] Preferably, the first honeycomb panel has a regular hexagonal through hole on its surface, and each of the six corners of the regular hexagonal through hole is provided with a reinforcing rib; the second honeycomb panel has an elongated hexagonal hole on its surface.

[0016] Preferably, the frame has bosses at the four corners of the top and grooves at the four corners of the bottom that can be matched with the bosses.

[0017] Preferably, the support column is a heat-resistant steel casting, and the pad is machined from a heat-resistant steel plate.

[0018] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0019] (1) The present invention has a simple structure and the frame adopts a vertically stackable design, which can effectively utilize the limited space of the carburizing equipment, increase the number of bearing rollers in a single furnace loading, thereby significantly improving the production efficiency of the equipment and reducing the unit production cost. The second honeycomb plate assembled around the frame and the first honeycomb plate at the bottom together form a multi-directional ventilation structure, ensuring that the protective atmosphere can be uniformly penetrated to the surface of the bearing rollers and ensuring the consistency of the carburized layer thickness.

[0020] (2) This utility model further enables the support column to be inserted into the positioning hole of the first honeycomb panel through a necking structure, forming a stable support system, effectively preventing structural deformation or subsidence of the first honeycomb panel under high temperature conditions, and avoiding damage to the bearing rollers of the lower layer. In addition, the support column is provided with annular bosses and reinforcing ribs at both ends of the column body, further improving its structural strength and deformation resistance, and adapting to the use requirements in high temperature environments. Graphite rings are embedded in the positioning holes of the first honeycomb panel to reduce the friction coefficient between the support column and the positioning holes, facilitating the insertion and assembly operation, and preventing the support column from jamming due to thermal deformation.

[0021] (3) This utility model further enables the boss at the top of the frame and the groove at the bottom to form a precise interlocking mechanical structure, effectively avoiding displacement or tipping problems caused by unstable frame stacking, and ensuring the structural stability of the loading basket during the high-temperature carburizing process. The cooperation between the boss and the groove can evenly distribute the vertical load, reduce local stress concentration, and extend the service life of the loading basket. The first honeycomb panel is detachably connected to the frame through a snap-fit ​​structure, which facilitates the replacement of honeycomb panels that have deformed due to long-term use, further reducing maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the framework structure;

[0024] Figure 3 This is a structural diagram of the supporting column;

[0025] Figure 4 This is a schematic diagram of the pad's structure;

[0026] Figure 5 This is a diagram illustrating the stacked state of multiple frames.

[0027] In the diagram: 1. Frame; 2. First honeycomb panel; 3. Support column; 4. Pad; 5. Second honeycomb panel. Detailed Implementation

[0028] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Example

[0031] Combined with appendix Figures 1-5 A material loading basket for carburizing bearing rollers includes a frame 1, a first honeycomb plate 2, a second honeycomb plate 5, and support columns 3. The frame 1, serving as the basic load-bearing unit of the entire material loading basket, is designed for vertical stacking, as shown in the attached diagram. Figure 5 As shown. This stacking design not only effectively utilizes the limited space of the carburizing equipment, but also significantly improves the equipment's production efficiency and reduces unit production costs by increasing the number of bearing rollers in a single furnace charge. In practical applications, the stacking height of multiple frames 1 can be flexibly adjusted according to the volume and process requirements of the carburizing equipment, thereby maximizing space utilization.

[0032] The frame 1 is evenly fitted with second honeycomb panels 5 around its perimeter, while the bottom is fixedly fitted with a first honeycomb panel 2. Together with the frame 1, they form a basket structure with multi-directional ventilation, as shown in the attached diagram. Figure 2 As shown. This ventilation design is crucial for the carburizing process because it is necessary to ensure that the protective atmosphere can penetrate evenly to the surface of the bearing rollers during carburizing, thereby ensuring the consistency of the carburized layer thickness. In addition, multiple positioning holes are evenly distributed on the surface of the first honeycomb plate 2.

[0033] One end of the support column 3 is provided with a necked structure that can be inserted into the positioning hole, as shown in the attached figure. Figure 3 As shown. In multi-layer stacking conditions, the support column 3 installed inside the lower frame 1 is vertically inserted into the positioning hole of the first honeycomb plate 2 at the bottom of the upper frame 1 through its necked end, forming a stable support system. This support design can not only effectively prevent structural deformation or sinking displacement of the upper first honeycomb plate 2 under high temperature conditions, but also avoid the bearing roller damage defects caused by the displacement of the first honeycomb plate 2. In actual operation, the material selection of the support column 3 needs to consider its high temperature resistance and mechanical strength to ensure that it can maintain a stable support effect under repeated thermal cycling conditions.

[0034] It is particularly important to note that when multiple frames 1 are stacked vertically, the first honeycomb panel 2 within the bottommost frame 1 directly contacts the surface of the carburizing workbench, bearing the weight transfer function of the entire stacked structure. Simultaneously, the support column 3, through its necked-out end structure, engages with the positioning holes of the lower frame 1, forming a continuous support link to ensure the geometric stability of the entire loading basket system. This design significantly reduces deformation of the first honeycomb panel 2 caused by unstable frame stacking in actual production, thereby improving the reliability of the carburizing process.

[0035] To meet the high precision requirements of the carburizing process, a flat pad 4 is placed on top of the first honeycomb panel 2. During the carburizing operation, the bearing rollers are placed on the surface of the pad 4 to prevent the bearing rollers at high temperatures from directly contacting the first honeycomb panel 2, which has poor flatness, and thus avoiding contact damage. The surface of the pad 4 is designed with regularly arranged strip grooves, as shown in the attached image. Figure 4 As shown, these grooves guide the protective atmosphere to penetrate evenly to the surface of the bearing rollers during the carburizing process, ensuring the consistency of the carburized layer thickness. Furthermore, the pad 4 has through holes corresponding to the support column 3, allowing the support column 3 to pass freely in the vertical direction, thus forming a complete support system.

[0036] When the flatness of the pad 4 exceeds the process tolerance due to repeated thermal cycling, the system accuracy can be restored by replacing the pad 4, ensuring the continuity and reliability of the carburizing operation. This replaceable design not only reduces maintenance costs but also extends the service life of the loading basket. In practical applications, the material selection for the pad 4 must balance high-temperature resistance and surface flatness requirements. Furthermore, the size and spacing of its slots must be optimized based on the flow characteristics of the carburizing atmosphere to ensure uniform distribution of the atmosphere to the bearing roller surface.

[0037] In summary, the material loading basket of this utility model achieves efficient and stable operation in high-temperature carburizing processes through the stacking design of the frame 1, the precise matching of the support columns 3, and the optimized structure of the pad plate 4. Its design not only meets the high requirements of modern industry for carburizing efficiency and quality but also reduces maintenance costs through the design of replaceable parts, demonstrating significant practical value. Example

[0038] See attached document Figures 1 to 4 As shown, the present invention provides a material loading basket for carburizing bearing rollers, which has been structurally optimized based on Embodiment 1. Specific improvements are as follows:

[0039] The support column 3 has annular bosses at both ends, with multiple reinforcing ribs evenly spaced circumferentially between the two annular bosses. This design significantly improves the overall structural strength of the support column 3 and enhances its resistance to deformation under high-temperature environments. The support column 3 is movably inserted into the positioning holes of the first honeycomb plate 2 at its ends, facilitating replacement when the support column 3 is damaged due to long-term use. The annular boss design not only provides a stable support plane but also ensures the accuracy and reliability of the insertion assembly.

[0040] Furthermore, four positioning holes are arranged in an array on the first honeycomb plate 2 at the bottom of the frame 1, and a graphite ring is embedded in each positioning hole (not shown in the figure). The use of graphite rings can effectively reduce the coefficient of friction between the support column 3 and the positioning holes, facilitating the insertion and assembly operation. At the same time, after the first honeycomb plate 2 is deformed by heat, the graphite rings can prevent the support column 3 from becoming stuck and unable to be replaced, thereby extending the service life of the loading basket.

[0041] The support column 3 is made of heat-resistant steel casting, which features simple processing, low cost, and strong resistance to deformation, and can adapt to the high-temperature environment in the carburizing process. The pad 4 is made of heat-resistant steel plate through precision machining to ensure its surface flatness, thereby providing a stable support plane for the bearing rollers and ensuring the quality of carburizing.

[0042] Furthermore, the first honeycomb panel 2 is detachably connected to the frame 1 via a snap-fit ​​structure. When the first honeycomb panel 2 deforms excessively due to long-term use, it can be replaced by disassembling the snap-fit, reducing maintenance costs. The surface of the first honeycomb panel 2 has regular hexagonal through holes, and each of the six corners of the through hole has a reinforcing rib. This design significantly improves the structural strength and deformation resistance of the panel while reducing weight. The surface of the second honeycomb panel 5 has elongated hexagonal holes, which further optimizes the weight distribution, saves material costs, and maintains good ventilation performance. Example

[0043] Based on Embodiment 1 or 2, this utility model further optimizes the stacking stability of frame 1. Specifically, as shown in the attached... Figure 1 , 2 As shown in Figure 5, the four top corners of frame 1 are provided with bosses, and the four bottom corners are provided with corresponding grooves. When multiple frames 1 are stacked sequentially, the grooves at the bottom of the upper frame 1 can precisely engage with the bosses at the top of the lower frame 1, forming a stable mechanical interlocking structure. This design effectively avoids displacement or tipping problems caused by unstable stacking of frames 1, ensuring the structural stability of the loading basket during the high-temperature carburizing process. At the same time, the cooperation between the bosses and grooves can evenly distribute the vertical load, reduce local stress concentration, and extend the service life of the loading basket.

[0044] This embodiment comprehensively improves the reliability, stability, and ease of maintenance of the loading basket by optimizing the structure of the support column 3, the detachable design of the first honeycomb panel 2, and the interlocking stacking structure of the frame 1, thus meeting the high precision and high efficiency requirements of modern industry for carburizing processes.

[0045] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. A material loading basket for carburizing bearing rollers, characterized in that, include: A frame (1) serves as the base; and multiple frames (1) can be stacked on top of each other. The first honeycomb panel (2) is installed at the bottom of the frame (1), and its surface has multiple positioning holes; The second honeycomb panel (5) is installed around the frame (1) respectively; the frame (1), the first honeycomb panel (2) and the four second honeycomb panels (5) together form a basket-shaped structure; The support column (3) has a necked structure at one end that can be inserted into the positioning hole to support the first honeycomb plate (2) at the bottom of the upper frame (1). The pad (4) is placed on top of the first honeycomb plate (2) and is used to place the bearing rollers. The pad (4) has multiple strip slots arranged in an array on its surface, and the pad (4) is provided with openings that allow the support column (3) to move through the corresponding position of the support column (3).

2. The material basket for carburizing bearing rollers as described in claim 1, characterized in that: The support column (3) has annular protrusions at both ends of the column body, and multiple reinforcing ribs are provided between the two annular protrusions along the circumferential direction.

3. The material loading basket for carburizing bearing rollers as described in claim 1, characterized in that: The first honeycomb plate (2) at the bottom of the frame (1) has four positioning holes arranged in an array.

4. The material loading basket for carburizing bearing rollers as described in claim 1 or 3, characterized in that: A graphite ring is embedded in the positioning hole.

5. The material basket for carburizing bearing rollers as described in claim 1, characterized in that: The first honeycomb panel (2) is detachably connected to the frame (1) by a snap fastener.

6. The material basket for carburizing bearing rollers as described in claim 1, characterized in that: The first honeycomb panel (2) has a regular hexagonal through hole on its surface, and each of the six corners of the regular hexagonal through hole is provided with a reinforcing rib; the second honeycomb panel (5) has an elongated hexagonal hole on its surface.

7. The material basket for carburizing bearing rollers as described in claim 1, characterized in that: The frame (1) has protrusions at the four corners of the top and grooves at the four corners of the bottom that can be matched with the protrusions.

8. The material basket for carburizing bearing rollers as described in claim 1, characterized in that: The support column (3) is a heat-resistant steel casting, and the pad (4) is machined from a heat-resistant steel plate.

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