Durable quenching tray

Abstract

The application discloses a durable quenching tray, which comprises a tray base, a plurality of through holes penetrating through both sides of the tray base are formed by casting integral molding, a plurality of vertical columns are arranged around the edge of the upper side of the tray base, a plurality of side guide plates are fixed on the column surface of the vertical columns, a plurality of horizontal rods are arranged around the upper edge of the tray base, and each horizontal rod continuously penetrates through a plurality of side guide plate holes, so that the horizontal rods, the vertical columns and the side guide plates form a fence structure around the upper edge of the tray base. The tray has high strength, good high-temperature mechanical properties and long service life.

Description

Technical Field

[0001] This application relates to a quenching processing device, and more particularly to a durable quenching tray. Background Technology

[0002] Quenching is the process of heating steel to A C3 Or A C1 The heat treatment process of obtaining martensite by holding at a certain temperature and then cooling at a rate greater than the critical cooling rate can significantly improve the strength, hardness, wear resistance and fatigue strength of metallic materials, and is widely used in the field of machinery manufacturing.

[0003] In liquid quenching operations, for batches of regularly shaped and small workpieces, using trays facilitates the placement and removal of workpieces from the quenching liquid, improving production efficiency and operational safety. Furthermore, trays prevent workpieces from colliding with each other or contacting the quenching tank walls during the quenching process, thus ensuring quenching quality. However, during liquid quenching, trays are prone to severe oxidation and burning at high temperatures, and the detached oxide scale contaminates the quenching liquid. Moreover, the heavy loads they bear make them susceptible to deformation and damage. On the other hand, the internal stress of the tray gradually increases during repeated liquid quenching, further exacerbating tray deformation and cracking, leading to scrapping. Frequent tray replacements significantly increase production costs. Summary of the Invention

[0004] This application provides a durable quenching tray to solve the technical problem that trays in the prior art are prone to deformation and cracking.

[0005] Specifically, this embodiment provides a durable quenching tray, comprising:

[0006] The tray base is cast in one piece and has several through holes that penetrate both sides of the tray base surface.

[0007] Multiple uprights are provided, which are vertical to the tray surface of the tray base and surround the edge of the upper tray surface of the tray base;

[0008] A side guide plate is fixed to the column surface of the column, and a number of side guide plate holes are provided on it.

[0009] Multiple crossbars are arranged around the upper edge of the pallet base, and each crossbar passes continuously through multiple side guide plate holes. The crossbars, together with the uprights and side guide plates, form a fence structure around the upper edge of the pallet base.

[0010] Furthermore, the tray base includes a side strip around the perimeter and a plurality of through holes disposed in the area surrounded by the side strip, and the column is fixed to the side strip.

[0011] Furthermore, the upper side of the edge strip is provided with a plurality of limiting holes spaced around the edge of the tray base, and each column is fixed in one of the limiting holes.

[0012] Furthermore, the column comprises an upper rod, a boss, and a lower rod from top to bottom. The outer diameter of the boss is larger than that of the upper rod and the lower rod. The lower rod is adapted to the limiting hole, and the boss abuts against the upper side of the edge strip and is welded and fixed.

[0013] Furthermore, the lower rod body is a truncated cone with a thicker upper part and a thinner lower part, and the truncated cone is welded and fixed to the limiting hole.

[0014] Furthermore, the column includes side columns and corner columns, with the corner columns located at the intersection of two side strips and on the side strip between two corner columns;

[0015] Each of the side columns has a side guide plate on its upper body. The side guide plates on all the side columns located on the same side strip are parallel to each other. Each of the corner columns has two side guide plates on its upper body, which are parallel to the side guide plates on the side strips on both sides of the corner column.

[0016] Furthermore, each of the side guide plates is provided with a plurality of side guide plate holes at different distances from the upper side surface of the tray base, and one side guide plate hole at each of the different distances is provided on each of the side guide plates.

[0017] Furthermore, the through hole is hexagonal.

[0018] Furthermore, the tray base has a square or rectangular surface.

[0019] Furthermore, the tray base, uprights, side guides, and crossbars are made of the same material, namely stainless steel, titanium alloy, or nickel-based alloy.

[0020] Beneficial effects

[0021] This utility model provides a durable quenching pallet with a honeycomb-structured base, which is high in strength and is manufactured using a one-piece casting technology. This reduces the self-weight of the pallet base, further increasing the load capacity, while ensuring the overall strength stability of the pallet. Furthermore, the quenching internal stress of the pallet base can be dispersed in multiple directions through the regular honeycomb structure, avoiding stress concentration that could lead to localized overload deformation and extending the service life of the pallet.

[0022] The guardrail, consisting of columns, side guide plates, and crossbars, effectively prevents the workpiece from shifting to the bottom of the quenching tank due to liquid quenching vibration. Furthermore, the open structure of the guardrail and the honeycomb structure of the tray base do not affect the flow and heat absorption process of the quenching medium, ensuring the safety of the workpiece while stabilizing the liquid quenching effect.

[0023] The pallet base, uprights, crossbars, and side guide plates are all made of high-temperature resistant metal materials, possessing excellent high-temperature mechanical properties and high-temperature oxidation resistance. Therefore, they can withstand the heavy weight of the workpiece at high temperatures without easily bending or deforming. Furthermore, they exhibit low oxidation and burn-off and minimal oxide scale, ensuring the long-term use of the pallet and quenching fluid. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of a durable quenching tray according to an embodiment of this application.

[0026] Figure 2 This is a side view of a durable quenching tray according to an embodiment of this application.

[0027] The meanings of the various reference numerals in the figure are as follows:

[0028] Horizontal bar 1, vertical column 2, upper rod body 2-1, boss 2-2, lower rod body 2-3, tray base 3, side strip 3-1, through hole 3-2, limit hole 3-3, side guide plate 4. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between 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.

[0032] like Figure 1 He Ru Figure 2 The image shown is a durable quenching tray according to this utility model, made of... Figure 1 It is understood that the durable quenching tray includes:

[0033] The tray base 3 is used to support parts. It is cast in one piece and has several through holes 3-2 that penetrate both sides of the tray base 3. The through holes 3-2 facilitate the flow of quenching medium so that the parts located on the tray base 3 can fully contact the quenching medium.

[0034] Multiple uprights 2 are provided, which are vertical to the tray surface of the tray base 3 and surround the edge of the upper tray surface of the tray base 3.

[0035] Side guide plate 4 is fixed on the column surface of the column 2, and has several side guide plate holes that penetrate the side guide plate 4.

[0036] A plurality of crossbars 1 are arranged around the upper edge of the tray base 3, and each crossbar 1 passes continuously through a plurality of side guide plate holes.

[0037] The crossbar 1, together with the column 2 and the side guide plate 4, forms a fence structure around the upper edge of the tray base 3. The fence structure is open and will not obstruct the flow of the quenching medium. However, the size of the holes formed in the fence should be taken into account the size of the workpiece to maintain a sufficient effect of shielding the workpiece. This will restrain the parts and keep them on the tray base 3 during liquid quenching vibration, preventing the workpiece from shifting to the bottom of the quenching tank and ensuring the stability of the quenching process.

[0038] The aforementioned durable quenching trays are made of high-temperature resistant materials such as stainless steel, titanium alloy, and nickel-based high-temperature alloys, selected according to the quenching temperature to ensure the trays' durability. Furthermore, the enclosure structure and the through holes 3-2 in the tray base 3 do not affect the flow and heat absorption process of the quenching medium, stabilizing the quenching effect. In use, batches of regularly shaped, small-sized workpieces are placed orderly on the tray base 3. After quenching, the trays are placed in the quenching medium for cooling. During the period from workpiece removal from the furnace to immersion in the quenching liquid, the trays stably support the workpieces, and the degree of oxidation and burn-off caused by high temperatures is low, the amount of oxide scale is small, and the impurity content generated by immersion in the quenching liquid is minimal.

[0039] In this embodiment of the invention, the tray base 3 has a square surface, but other shapes, such as rectangles, can be chosen as needed. To facilitate the formation of the fence structure, the tray shape should be as regular as possible, with long straight edges being preferable; curved edges should be avoided. A regular tray shape allows for the formation of a regular fence structure, which is also beneficial for batch production and storage. The number of workpieces a single tray can support is relatively clear, making it convenient to select the appropriate shape based on requirements.

[0040] In some specific embodiments, the tray base 3 includes a side strip 3-1 located around its perimeter and a plurality of through holes 3-2 disposed within the area surrounded by the side strip 3-1, and the column 2 is fixed to the side strip 3-1. Figure 1 The edge strips 3-1 shown form a square frame of a certain width. The through holes 3-2 are arranged in a honeycomb pattern of arrayed hexagons inside the square frame, with two opposite sides of each hexagon parallel to the edge strip 3-1 frame. To maximize the number of through holes 3-2 inside the square frame, some hexagons in the honeycomb pattern are incomplete near the edge of the edge strip 3-1 frame. The columns 2 are evenly distributed around the edge strips 3-1, as shown... Figure 1 As shown, each side strip 3-1 has 5 pillars 2 evenly arranged. The pillars 2 at the corner of the square are shared by two side strips 3-1, for a total of 16 pillars 2.

[0041] In some specific embodiments, the upper side of the edge strip 3-1 is provided with a plurality of limiting holes 3-3 at intervals around the edge of the tray base 3, and each of the columns 2 is fixed in one of the limiting holes 3-3.

[0042] In some specific embodiments, the column 2 includes side columns 2 and corner columns 2, with the corner columns 2 positioned at the intersection of pairs of side strips 3-1, and the side columns 2 located on the side strips 3-1 between pairs of corner columns 2. For example... Figure 1As shown, each edge strip 3-1 has 11 evenly distributed limiting holes 3-3 in the middle, and one limiting hole 3-3 shared by two edge strips 3-1 is provided at the corner of the square. Each column 2 is fixed by one of the limiting holes 3-3, and there are two limiting holes 3-3 between each pair of adjacent columns 2. In this embodiment, the limiting holes 3-3 are set as rectangular through holes with chamfers in the middle of the edge strip 3-1, and as circular through holes at the corner of the square.

[0043] Each of the side pillars 2 has a side guide plate 4 on its upper rod 2-1. The side guide plates 4 on all the side pillars 2 located on the same side strip 3-1 are parallel to each other. Each corner pillar 2 has two side guide plates 4 on its upper rod 2-1, which are parallel to the side guide plates 4 on the side strips 3-1 on both sides of the corner pillar 2. In this embodiment, an upper rod 2-1 with one side guide plate 4 is perpendicular to the side strip 3-1 where the pillar 2 is located, and an upper rod 2-1 with two side guide plates 4 are perpendicular to the corresponding side strips 3-1, as shown below. Figure 1 As described above, each edge strip 3-1 has 5 parallel side guide plates 4.

[0044] In some specific embodiments, each side guide plate 4 is provided with multiple side guide plate holes at different distances from the upper surface of the tray base 3, and one side guide plate hole at each different distance is provided on each side guide plate 4. For example... Figure 1 He Ru Figure 2 As shown, each side guide plate 4 is provided with 6 side guide plate holes, which correspond to 6 layers of crossbars 1. The length of each layer of crossbars 1 is equivalent to the square side length of the pallet base 3, so that the 6 layers of parallel crossbars 1 form a fence around the pallet base 3.

[0045] In some specific embodiments, such as Figure 2 As shown, the column 2 is integrally formed and includes, from top to bottom, an upper rod 2-1, a boss 2-2, and a lower rod 2-3. The outer diameter of the boss 2-2 is larger than that of the upper rod 2-1 and the lower rod 2-3. The lower rod 2-3 is adapted to the limiting hole 3-3, and the boss 2-2 abuts against the upper side of the edge strip 3-1 and is welded and fixed. Specifically, the diameter of the lower rod 2-3 is adapted to the short side of the rectangular limiting hole 3-3 and the diameter of the circular limiting hole 3-3, respectively, forming a clearance fit. During installation, the lower rod 2-3 is inserted into the limiting hole 3-3, and the boss 2-2 abuts against the upper side of the edge strip 3-1. Then, the area where the boss and the edge strip contact is welded and fixed, thereby achieving axial positioning of the column 2.

[0046] To ensure a reliable fixation between the uprights 2 and the pallet base 3, the lower rod 2-3 is a truncated cone, wider at the top and narrower at the bottom. This cone-shaped structure facilitates alignment during installation, making it easy to insert the lower rod 2-3 into the limiting hole 3-3. With multiple uprights 2 working together, a stable connection between the overall fence structure and the pallet base 3 is ensured.

[0047] In some specific embodiments, the through holes 3-2 are hexagonal through holes. Multiple hexagonal through holes are arranged to form a honeycomb pattern. This structure allows the internal stress generated during the quenching and rapid cooling of the tray base 3 to be effectively dispersed through the honeycomb pattern, avoiding deformation and cracking caused by local stress concentration in the tray.

[0048] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A durable quenching tray characterized by, include: The tray base is cast in one piece and has several through holes that penetrate both sides of the tray base surface. Multiple uprights are provided, which are vertical to the tray surface of the tray base and surround the edge of the upper tray surface of the tray base; A side guide plate is fixed to the column surface of the column, and a number of side guide plate holes are provided on it. Multiple crossbars are arranged around the upper edge of the pallet base, and each crossbar passes continuously through multiple side guide plate holes. The crossbars, together with the uprights and side guide plates, form a fence structure around the upper edge of the pallet base.

2. The durable quenching tray according to claim 1, characterized in that, The tray base includes a side strip around the perimeter and a plurality of through holes disposed in the area surrounded by the side strip, and the column is fixed to the side strip.

3. A durable quenching tray according to claim 2, characterized in that, The upper side of the edge strip is provided with multiple limiting holes at intervals around the edge of the tray base, and each column is fixed in one of the limiting holes.

4. A durable quenching tray according to claim 3, characterized in that, The column comprises an upper rod, a boss, and a lower rod from top to bottom. The outer diameter of the boss is larger than that of the upper rod and the lower rod. The lower rod is adapted to the limiting hole, and the boss abuts against the upper side of the edge strip and is welded and fixed.

5. A durable quenching tray according to claim 4, characterized in that, The lower rod is a truncated cone, which is thicker at the top and thinner at the bottom, and the truncated cone is welded and fixed to the limiting hole.

6. A durable quenching tray according to claim 4, characterized in that, The column includes side columns and corner columns. The corner columns are located at the intersection of two side strips and on the side strips between two corner columns. Each of the side columns has a side guide plate on its upper body. The side guide plates on all the side columns located on the same side strip are parallel to each other. Each of the corner columns has two side guide plates on its upper body, which are parallel to the side guide plates on the side strips on both sides of the corner column.

7. A durable quenching tray according to claim 4, characterized in that, Each of the side guide plates is provided with multiple side guide plate holes at different distances from the upper side surface of the tray base, and one side guide plate hole at each of the different distances is provided on each side guide plate.

8. A durable quenching tray according to claim 1, characterized in that, The through hole is hexagonal.

9. A durable quenching tray according to claim 1, characterized in that, The tray base has a square or rectangular surface.

10. A durable quenching tray according to claim 1, characterized in that, The tray base, uprights, side guides, and crossbars are made of the same material, namely stainless steel, titanium alloy, or nickel-based alloy.

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