TWI831092B - A bearing seat for carburizing parts - Google Patents

Abstract

A bearing seat for carburizing parts is used to solve the problem of poor passing rate of working gas through a workpiece in a carburizing furnace. Includes: a body having an upper surface and a lower surface; and a plurality of through holes penetrating the base body, and any two through holes are adjacently provided with a structural wall surrounding the upper surface and the lower surface to form an air flow channel; wherein a bottom surface of a workpiece contacts the plurality of through holes, so that the bottom surface of the workpiece in the extending direction of the plurality of through holes, forming a non-working area blocked by the structural wall and a working area not blocked by a structural wall. The area of the working area has a through-hole ratio relative to the bottom area of the workpiece, and the through-hole ratio is 64%~72%.

Description

Carburized parts bearing seat

The present invention relates to a bearing seat, in particular to a carburizing parts bearing seat for bearing carburized parts in a carburizing furnace.

Carburizing refers to heating the workpiece (usually iron or steel products) in a carbon-containing environment (such as carbon monoxide), causing the workpiece to absorb carbon atoms, thereby changing the hardness of the workpiece. Generally, the workpiece is placed in a carburizing furnace to carburize the workpiece. A circulating air flow can be formed in the carburizing furnace by air extraction equipment. In this way, carbon-containing working gas can be introduced into the carburizing furnace to carburize the workpiece in the carburizing furnace. The carburizing effect of the workpiece depends on whether the working gas in the carburizing furnace can fully pass through the workpiece for convection when circulating in the carburizing furnace. Therefore, it is necessary to increase the passing rate of the working gas to the workpiece to improve the carburizing furnace. Carburizing quality of the workpiece.

In order to solve the above problems, the object of the present invention is to provide a carburized parts bearing seat that can improve the passage rate of working gas through the carburized parts.

Directionality or similar terms are used throughout the present invention, such as "front", "back", "left", "right", "upper (top)", "lower (bottom)", "inner", "outer" , "side", etc. mainly refer to the directions of the attached drawings. Each directionality or its approximate terms are only used to assist in explaining and understanding the various embodiments of the present invention, and are not intended to limit the present invention.

The use of the quantifier "a" or "an" in the elements and components described throughout the present invention is only for convenience of use and to provide a common sense of the scope of the present invention; in the present invention, it should be interpreted as including one or at least one, and single The concept of also includes the plural unless it is obvious that something else is meant.

The carburized parts carrying seat of the present invention is used to carry a workpiece, and includes: a seat body with an upper surface and a lower surface; and several through holes that penetrate the seat body, and the several through holes include numbers with the same cross-sectional area. Hexagons and several pentagons with the same cross-sectional area, the hexagonal through-holes are adjacent to each other, the pentagonal through-holes are connected around the base body, and any two adjacent through-holes have A structural wall that surrounds an airflow channel that connects the upper surface and the lower surface; wherein a bottom surface of the workpiece contacts the plurality of through holes, so that the bottom surface of the workpiece extends from the extension of the plurality of through holes direction, forming a non-working area blocked by the structural wall and a working area not blocked by the structural wall. The area of the working area has a porosity rate relative to the bottom area of the workpiece, and the porosity rate is 64%. ~72%.

Accordingly, the carburized parts bearing seat of the present invention has a plurality of through holes penetrating the upper surface and the lower surface of the seat body, so that the seat body has a better through-hole rate, and the several through holes can form Air flow channel, when the working gas in the carburizing furnace circulates and convections in the furnace, it can be blown to the workpiece placed on the seat body through the guidance of the several through holes. In addition, the several through holes form a similar shape. The honeycomb structure also enables the base body to have better structural strength. In this way, the passage rate of the working gas to the workpiece can be improved, and the working gas in the carburizing furnace can smoothly pass through the several workpieces through the plurality of through holes, so as to perform convection circulation and control several workpieces in the carburizing furnace. Carburizing the workpiece evenly can achieve better carburizing quality.

Among them, the length of each structural wall of the hexagonal through hole is 30~34mm. In this way, the hexagonal through hole can have a sufficient opening area.

Wherein, the seat body has a thickness between the upper surface and the lower surface, and the thickness The degree is 30~32mm. In this way, the plurality of through holes can form a guide path of a predetermined length corresponding to the thickness, so that the airflow can be blown out from each opening after passing through the through holes.

The carburized parts carrying seat of the present invention may further include a frame body, which is placed on the upper surface of the seat body, and the frame body has several load-carrying pegs. In this way, the workpiece can be fixed on the load peg, which has the effect of better placement stability.

1: Seat body

11: Upper surface

12: Lower surface

2:Through hole

21: Structural wall

3: Frame

31: Loading bolt

D:Thickness

P: carburizing furnace

P1: base plate

P2: Air circulation device

M: workpiece

H1: Non-working area

H2: Workspace

[Figure 1] A perspective view of an embodiment of the present invention.

[Figure 2] A front view of an embodiment of the present invention.

[Figure 3] Schematic diagram of the combination of the base body, the bottom plate of the carburizing furnace, and the frame according to one embodiment of the present invention.

[Picture 4] The combination diagram of the base body, bottom plate and frame shown in Figure 3.

[Figure 5] Schematic diagram of convection of working gas in carburizing furnace.

In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments of the present invention are illustrated below and described in detail with reference to the accompanying drawings; in addition, the same symbols are used in different drawings. are considered to be the same and their description will be omitted.

Please refer to Figures 1 and 2, which is a preferred embodiment of the carburized parts bearing seat of the present invention. It includes a body 1 with a plurality of through holes 2.

The base body 1 can be a roughly rectangular block, or can be other geometric or irregular shapes. The seat body 1 has an upper surface 11 and a lower surface 12. The upper surface 11 and the lower surface 12 can respectively be located on a virtual horizontal plane. The upper surface 11 and the lower surface 12 can be To make it relative. The seat body 1 can be stably placed in a carburizing furnace through the lower surface 12, and the upper surface 11 can support the workpiece to be carburized. The seat body 1 has a thickness D between the upper surface 11 and the lower surface 12. The thickness D can be 30~32mm. The workpiece to be carburized can be placed on the seat body 1 to cushion it. at the bottom of the carburizing furnace.

The plurality of through holes 2 penetrate through the upper surface 11 and the lower surface 12 of the seat body 1 , and the plurality of through holes 2 each have an opening on the upper surface 11 and the lower surface 12 . There is a structural wall 21 adjacent to any two through-holes 2 , and the structural wall 21 surrounds an airflow channel connecting the upper surface 11 and the lower surface 12 . In this way, the plurality of through holes 2 can form a plurality of air flow channels, and the air flow can enter through the openings on the lower surface 12 of the seat body 1 and flow out through the openings on the upper surface 11 . In this way, the airflow can pass through the seat body 1 smoothly, and through the thickness D of the seat body 1, the plurality of through holes 2 can also form a guide path of a predetermined length corresponding to the thickness D, allowing the airflow to pass through. Each through hole 2 can be blown out through the opening of each through hole 2 respectively. The plurality of through holes 2 each have a porosity rate on the upper surface 11 and the lower surface 12, and the porosity rate is 64~72%. Specifically, the porosity means that when a workpiece M is placed on the upper surface 11, the bottom surface of the workpiece M contacts the plurality of through holes 2, so that the bottom surface of the workpiece M is in contact with the plurality of through holes 2. In the extending direction (that is, the direction perpendicular to the upper surface 11), a non-working area H1 blocked by the structural wall 21 and a working area H2 not blocked by the structural wall 21 are formed. The working area H2 The area area has a porosity rate relative to the bottom area of the workpiece, and the porosity rate is 64% to 72%. In this way, the plurality of through holes 2 can enable the seat body 1 to have a better air flow penetration rate.

It is worth noting that the cross-section of each through hole 2 can present several identical or different geometric shapes, and corresponding opening shapes are formed on the upper surface 11 and the lower surface 12 of the seat body 1, such as triangles, rectangles, Pentagon, hexagon and circle. Alternatively, each through hole 2 may have an irregular shape. In this embodiment, the seat body 1 is roughly rectangular, and the seat body 1 preferably has at least seven adjacent hexagonal through-holes 2 with the same cross-sectional area, that is, the through-holes 2 The radial cross section is hexagonal, and hexagonal openings are formed on the upper surface 11 and the lower surface 12 . The sides of the outermost hexagonal through hole 2 may form part of the sides of the approximately rectangular base body 1 , or the outermost through hole 2 may be in other irregular shapes other than hexagonal. In another embodiment, the plurality of through holes 2 include a plurality of pentagons with the same cross-sectional area, and the plurality of pentagonal through holes 2 are connected and located around the base body 1 . In this way, the plurality of hexagonal through holes 2 of the base body 1 can form a honeycomb-like structure, so that the base body 1 has better structural strength. And the hexagonal through-hole 2 can form a larger opening area to improve the smoothness of air flow through the through-hole 2. Preferably, each structural wall 21 of the several hexagonal through-holes 2 is as long as It is 30~34mm. In this way, the workpieces to be carburized can be conveniently placed and arranged on the upper surface 11 of the base body 1 .

Please refer to Figure 3, the carburized parts bearing seat of the present invention can further include a frame 3, and the frame 3 can be placed on the upper surface 11 of the seat body 1. The frame 3 may have a plurality of loading pegs 31 so that the workpiece M to be carburized can be fixed on the loading pegs 3 so that the workpiece M has better placement stability. In particular, according to the number of carburized parts to be processed, several racks 3 can be stacked vertically, and the bottom surface of the rack 3 is matched with the loading bolt 31 to ensure the stability of the vertical stacking and improve the processing of carburized parts. quantity.

Please refer to Figures 3, 4, and 5. When the carburizing parts bearing seat of the present invention is used, the seat body 1 can be placed on a bottom plate P1 in a carburizing furnace P from the lower surface 12, and will be placed thereon. Several workpieces M to be carburized are directly placed on the upper surface 11 of the seat body 1, or the frame 3 is placed on the upper surface 11 of the seat body 1, and then the workpieces M to be carburized are fixed on the The loading bolt 3 is on. The carburizing furnace P can be driven by an air flow circulation device P2 to circulate the air flow in the carburizing furnace P. In this way, after the carbon-containing working gas is introduced into the carburizing furnace P, the working gas can be circulated in the carburizing furnace P.

Please refer to Figure 5. The working gas system passes through the flow channel in the carburizing furnace P towards It is blown in the direction of the furnace bottom and sent to the bottom of the bottom plate P1, and then blown upward vertically from the bottom of the bottom plate P1 through the bottom plate P1, thereby forming convection in the carburizing furnace P. At this time, the airflow upward from the bottom plate P1 can be guided through the several through holes 2 of the seat body 1 and blown toward the workpiece M placed directly or indirectly on the upper surface 11 of the seat body 1 . In this way, the workpiece M can be sufficiently carburized in the working gas.

To sum up, the carburized parts bearing seat of the present invention has a plurality of through holes penetrating the upper surface and the lower surface of the seat body, so that the seat body has a better through-hole rate. The several through holes An air flow channel can be formed. When the working gas in the carburizing furnace circulates and convections in the furnace, it can be blown toward the workpiece placed on the seat body through the guidance of the several through holes. In addition, the several through holes form The honeycomb-like structure also enables the base body to have better structural strength. In this way, the passage rate of the working gas to the workpiece can be improved, and the working gas in the carburizing furnace can smoothly pass through the several workpieces through the several through holes, so as to perform convection circulation and control several workpieces in the carburizing furnace. Carburizing the workpiece evenly can achieve better carburizing quality.

Although the present invention has been disclosed using the above-mentioned preferred embodiments, they are not intended to limit the invention. Anyone skilled in the art can make various changes and modifications to the above-described embodiments without departing from the spirit and scope of the invention. The technical scope protected by the invention, therefore, the protection scope of the invention shall include all changes within the literal and equivalent scope described in the appended patent application scope.

1: Seat body

11: Upper surface

12: Lower surface

2:Through hole

21: Structural wall

D:Thickness

Claims (4)

A carburizing parts carrying seat is used to carry a workpiece, including: a body with an upper surface and a lower surface; and several through holes that penetrate the seat body, and the several through holes include several six-dimensional holes with the same cross-sectional area. Several pentagons with the same side shape and cross-sectional area, the several hexagonal through holes are adjacent to each other, the several pentagonal through holes are connected and surround the base body, and there is a structure where any two adjacent through holes are adjacent Wall, the structural wall surrounds an air flow channel connecting the upper surface and the lower surface; wherein, a bottom surface of the workpiece contacts the plurality of through holes, so that the bottom surface of the workpiece is in the extending direction of the plurality of through holes , forming a non-working area blocked by the structural wall and a working area not blocked by the structural wall. The area of the working area has a porosity rate relative to the bottom area of the workpiece, and the porosity rate is 64%~72 %. For example, the carburized parts bearing seat of claim 1, wherein the length of each structural wall of the hexagonal through hole is 30~34mm. For example, the carburized parts bearing seat of claim 1 or 2, wherein the seat body has a thickness between the upper surface and the lower surface, and the thickness is 30~32mm. For example, the carburized parts bearing seat of claim 1 or 2 further includes a frame body, which is placed on the upper surface of the seat body and has several load-carrying bolts.