CN-224227147-U - A charging tray net piece for bearing part quenches

Abstract

The novel material tray net sheet for quenching bearing parts is made of heat-resistant steel plates, is of a rectangular structure with four corners cut off, is provided with longitudinal grooves and transverse grooves, is divided into 4 equal symmetrical structure areas by the longitudinal grooves and the transverse grooves, is provided with a plurality of slotted holes in each area, is obliquely arranged, is convenient for full flow of quenching medium during quenching, provides better cooling conditions for quenching parts, is arranged in parallel in all slotted holes in each area, and is positioned on one diagonal line of the material tray net sheet, and the central lines of the slotted holes are coincident with the diagonal line. The utility model not only ensures that the contact part of the part and the net sheet does not form a gas film to generate soft spots to influence the quenching quality, but also ensures that the contact part of the quenched part and the net sheet does not generate pad injury.

Inventors

• LI FUWEI
• CHENG HONGWEI
• WANG KE

Assignees

• 洛阳轴承集团股份有限公司

Dates

Publication Date

20260512

Application Date

20250514

Claims (4)

1. 1. A tray net sheet for quenching bearing parts is characterized in that the tray net sheet is made of a heat-resistant steel plate, the tray net sheet is of a rectangular structure with four corners cut off, the tray net sheet is provided with a longitudinal groove and a transverse groove, the longitudinal groove and the transverse groove divide the tray net sheet into 4 equal symmetrical structure areas, each area is provided with a plurality of slotted holes, the slotted holes are obliquely arranged, the slotted hole structures facilitate sufficient flow of quenching medium during quenching, a better cooling condition is provided for part quenching, all the slotted holes in each area are arranged in parallel, and the central line of the slotted holes on one diagonal line of the tray net sheet coincides with the diagonal line.
2. 2. A tray mesh for quenching bearing parts according to claim 1, wherein the thickness of the tray mesh is 3mm and the surface of the tray mesh is free of burrs.
3. 3. A tray mesh for quenching of bearing parts according to claim 1, wherein the slots of the diagonal two regions run the same.
4. 4. A pallet web for quenching of bearing parts according to claim 1 wherein the spacing between each adjacent slot is equal and the chamfer of the slot is R5.

Description

A charging tray net piece for bearing part quenches Technical Field The utility model belongs to the technical field of bearing heat treatment, and particularly relates to a material disc mesh for quenching bearing parts. Background When the bearing parts are charged in a tray for furnace processing, the bottom of the tray is usually leveled by adopting a method of padding a net sheet, the existing net sheet is woven by adopting heat-resistant steel wires, the net sheet is flattened by a press machine after being woven, the net sheet is flatly laid at the bottom of the tray when in use, partial bearing parts are subjected to pad injury after quenching after the net sheet woven by the net sheet is used, the pad injury can be eliminated for parts with larger grinding allowance, the pad injury can not be eliminated as waste after the parts with smaller grinding allowance are ground into finished products, and the reason for the pad injury is that the bump at the lap joint of the net sheet produces ridge injury to the parts in a red and hot state after quenching and heating. Disclosure of utility model The utility model aims to provide a material tray net piece for quenching bearing parts, which can ensure that a soft point is not formed at the contact part of the parts and the net piece when the parts are quenched, so that the quenching quality is influenced, and the contact part of the parts and the net piece is not padded after quenching. The utility model adopts the following technical scheme for accomplishing the purposes: A tray net piece for quenching bearing parts is made of heat-resistant steel plates, the tray net piece is of a rectangular structure with four corners cut off, the tray net piece is provided with longitudinal grooves and transverse grooves, the longitudinal grooves and the transverse grooves divide the tray net piece into 4 equal symmetrical structure areas, each area is provided with a plurality of slotted holes, the slotted holes are obliquely arranged, the slotted hole structures facilitate sufficient flow of quenching medium during quenching, better cooling conditions are provided for part quenching, all slotted holes in each area are arranged in parallel, and the central line of the slotted holes on one diagonal line of the tray net piece coincides with the diagonal line. The thickness of the tray net sheet is 3mm, and the surface of the tray net sheet is free of burrs. The slots in the two diagonal regions run the same. The space between every two adjacent slots is equal, and the chamfer angle of each slot is R5. According to the material tray net sheet for quenching the bearing parts, the material tray net sheet structure is adopted, when the bearing parts are charged into the material tray for furnace processing, the heat-resistant steel plate is adopted to be padded at the bottom of the material tray, the problem that the parts are padded and damaged by ridges after heating is avoided because the surface of the steel plate is flat and has no lap joint protrusions, a plurality of slots are densely arranged to facilitate the quenching medium to sufficiently cool the parts during quenching, the directions and the sizes of the slots can avoid the bearing parts from forming air films in the quenching medium, no soft points are ensured after the parts are quenched, and the padding waste products are avoided while the hardness of products meets technical requirements. Drawings Fig. 1 is a schematic structural view of the present utility model. In the figure, 1, a longitudinal groove, 2, a transverse groove, 3 and a slotted hole. Detailed Description The novel features of the utility model will be described in detail with reference to the drawings and detailed description; A tray net piece for quenching bearing parts is made of heat-resistant steel plates, the tray net piece is of a rectangular structure with four corners cut off, the tray net piece is provided with a longitudinal groove 1 and a transverse groove 2, the longitudinal groove 1 and the transverse groove 2 divide the tray net piece into 4 equal symmetrical structure areas, each area is provided with a plurality of slotted holes 3, the slotted holes are obliquely arranged, the slotted hole structures facilitate sufficient flow of quenching medium during quenching, better cooling conditions are provided for part quenching, all slotted holes in each area are arranged in parallel, and the central line of the slotted holes on one diagonal line of the tray net piece coincides with the diagonal line. The thickness of the tray net sheet is 3mm, and burrs are avoided on the surface of the tray net sheet; The slots in the two diagonal regions run the same. The space between every two adjacent slots is equal, and the chamfer angle of each slot is R5. The bearing roller of a certain type has an outer diameter of 46.8 mm, an outer diameter allowance of 0.20 mm, a height of 83 mm and a height allowance of 0.25 mm, and is subjected to he