Carburizing hanger for annular parts

Abstract

The annular part carburizing hanging frame is characterized by comprising a horizontally-arranged bottom plate, two supporting frames vertically arranged on the bottom plate and H-shaped lifting appliances horizontally supported on the two supporting frames, each supporting frame is of a multi-layer structure, a plurality of H-shaped lifting appliances arranged side by side are supported on each layer, and annular parts penetrate through the H-shaped lifting appliances and are in positioning fit with the H-shaped lifting appliances. Multi-layer arrangement hanging of the annular parts is formed, so that the annular parts are uniformly arranged in the space of the hanging rack, the space utilization rate is improved, the production efficiency of a carburizing and quenching production line is improved, the hanging stability of the annular parts is improved, and shaking and moving of the annular parts on the H-shaped hanger in the heat treatment process are reduced; the uniform bearing of the H-shaped lifting appliance is ensured, the bearing deformation of the H-shaped lifting appliance and the deflection hanging probability of the product are reduced, the high-temperature creep of the product caused by the movement of the product and the deformation of the lifting appliance is reduced, the deformation rate of the product is reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to a carburizing rack for annular parts, and belongs to the technical field of carburizing and quenching of annular parts. Background Art

[0002] Carburizing and quenching is a common heat treatment process for metal materials. It can make the surface of the carburized workpiece obtain high hardness and improve its wear resistance. At present, the main reduction gear and other annular parts in the gearbox are generally supported by cross-shaped heat-resistant steel loading rods during carburizing and quenching. The loading rods have the following problems in the hanging of the product:

[0003] 1. The arrangement of the charging rods on the carburizing furnace production line is unreasonable, resulting in a waste of space after the products are hung, affecting the production efficiency of the carburizing furnace production line.

[0004] 2. There is only one contact support point between the product and the loading rod, which makes the product unstable. When the loading rod moves during the heat treatment process, the product will shake and move on the loading rod, causing the creep amount to increase under high temperature, resulting in product deformation and affecting quality.

[0005] 3. The movement of the product on the loading rod causes the loading rod to bend due to uneven load-bearing, causing the product to be loaded at an angle, which will also increase the high-temperature creep of the product. Utility Model Content

[0006] The annular parts carburizing hanger provided by the utility model forms a multi-layer arrangement and hanging of the annular parts, so that the annular parts are evenly arranged in the hanger space, and the space utilization rate is improved, so as to improve the production efficiency of the carburizing and quenching production line, improve the hanging stability of the annular parts, reduce the shaking and movement of the annular parts on the H-type hanger during the heat treatment process, ensure the uniform load of the H-type hanger, reduce the load deformation of the H-type hanger and the probability of skewed hanging of the product, reduce the high-temperature creep of the product caused by product movement and hanger deformation, reduce the product deformation rate, and improve product quality.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The carburizing hanger for annular parts is characterized by comprising a horizontally arranged bottom plate, two support frames vertically mounted on the bottom plate, and an H-shaped hanger horizontally supported on the two support frames and in an H shape. The support frames are of a multi-layer structure, and each layer supports a plurality of H-shaped hangers arranged side by side. The annular parts are worn on the H-shaped hangers and are positioned and matched with the H-shaped hangers.

[0009] Preferably, the support frame includes two columns inserted into the base plate, a load-bearing plate connecting the two columns and arranged horizontally, and a sleeve sleeved on the columns. The load-bearing plates are evenly spaced in multiple layers on the columns from bottom to top, adjacent load-bearing plates are separated by sleeves, and the bottom load-bearing plate is also separated from the base plate by sleeves. The H-shaped sling is supported on the load-bearing plate.

[0010] Preferably, the bearing plate comprises a plate body and an end tube integrally formed at the end of the plate body, the end tube is sleeved on the column and abuts against the sleeve, and the H-shaped hanger is supported on the plate body.

[0011] Preferably, the H-shaped sling comprises two support rods, a connecting rod integrally formed between the two support rods, an annular part is passed through the two support rods, and the support rod has a groove for positioning and matching with the annular part.

[0012] Preferably, the outer surface of the support rod has an integrally formed protrusion, and grooves are formed between adjacent protrusions. The protrusion contacts the end surface of the annular part, and the bottom surface of the groove contacts the inner ring of the annular part to form a support point of the support rod for the annular part.

[0013] Preferably, the cross-sections of the support rod and the connecting rod are both elliptical, the support rod has a lifting matching section that can cooperate with the lifting arm, no groove is set on the lifting matching section, the top and bottom surfaces of the plate body are serrated surfaces, and the support rod cooperates with the teeth and grooves of the serrated surface to position the H-shaped sling on the load-bearing plate.

[0014] The beneficial effects of the utility model are:

[0015] The utility model relates to a carburizing hanger for annular parts. Two support frames are installed on a bottom plate. The support frames are of a multi-layer structure. Each layer supports a plurality of H-shaped hangers arranged side by side. The annular parts are put on the H-shaped hangers to form a multi-layer arrangement and hanging of the annular parts. The annular parts are evenly arranged in the hanger space, thereby improving the space utilization rate and improving the production efficiency of the carburizing and quenching production line.

[0016] The annular parts are put on the H-type sling, and the H-type sling forms two-point support for the annular parts. The annular parts and the H-type sling are positioned and matched to improve the stability of the installation and hanging of the annular parts, reduce the shaking and movement of the annular parts on the H-type sling during the heat treatment process, ensure the uniform load of the H-type sling, reduce the deformation of the H-type sling under load and the probability of product skew installation, reduce the high-temperature creep of the product caused by product movement and sling deformation, reduce the product deformation rate, and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the carburizing rack for annular parts of the utility model.

[0018] Figure 2 A schematic diagram of a carrier plate.

[0019] Figure 3 This is a schematic diagram of an H-type spreader.

[0020] Figure 4 for Figure 3 A partial enlarged schematic diagram of . DETAILED DESCRIPTION

[0021] Combine the following Figures 1 to 4 The embodiments of the present utility model are described in detail.

[0022] The carburizing rack for annular parts is characterized by comprising a horizontally arranged bottom plate 1, two support frames 2 vertically mounted on the bottom plate 1, and an H-shaped hanger 3 horizontally supported on the two support frames 2 and in an H shape. The support frames 2 are a multi-layer structure, and each layer supports a plurality of H-shaped hangers 3 arranged side by side. The annular parts are passed through the H-shaped hangers 3 and are positioned and matched with the H-shaped hangers 3.

[0023] The above-mentioned carburizing hanger for annular parts has two support frames 2 installed on the bottom plate 1. The support frames 2 are multi-layer structures, and each layer supports a plurality of H-shaped hangers 3 arranged side by side. The annular parts are worn on the H-shaped hangers 3 to form a multi-layer arrangement and hanging of the annular parts, so that the annular parts are evenly arranged in the hanger space, and the space utilization rate is improved to improve the production efficiency of the carburizing and quenching production line. The annular parts are worn on the H-shaped hangers 3, and the H-shaped hangers 3 form two-point support for the annular parts, and the annular parts are positioned and matched with the H-shaped hangers 3 to improve the stability of the hanging of the annular parts, reduce the shaking and movement of the annular parts on the H-shaped hangers 3 during the heat treatment process, ensure the uniform load of the H-shaped hangers, reduce the load deformation of the H-shaped hangers and the probability of product skew hanging, reduce the high-temperature creep of the product caused by product movement and hanger deformation, reduce the product deformation rate, and improve product quality.

[0024] The support frame 2 includes two columns 4 plugged into the bottom plate, a load-bearing plate 5 connecting the two columns 4 and arranged horizontally, and a sleeve 6 sleeved on the columns. The load-bearing plates 5 are evenly spaced in multiple layers from bottom to top on the columns 4. Adjacent load-bearing plates 5 are separated by sleeves 6, and the bottom load-bearing plate 5 is also separated from the bottom plate 1 by sleeves 6. The H-shaped hanger 3 is supported on the load-bearing plates 5. The load-bearing plates 4 are used to bear the weight of the H-shaped hanger 3 and the annular parts worn on the H-shaped hanger 3. The sleeve 6 is used to separate adjacent load-bearing plates 5 and separate the bottom load-bearing plates 5 and the bottom plate 1, so that the load-bearing plates 5 have accommodating spaces for annular parts above and below. The annular parts carburizing hanger is easy and simple to assemble. When assembling, the bottom plate 1 is placed on the carbon quenching production line, the main column is first plugged into the bottom plate 1, and then the sleeve 6 and the bottom load-bearing plate 5 are sleeved on the main column. Then the annular parts are worn on the H-shaped hanger 3, and then the H-shaped hanger is assembled. The tool 3 is placed on the bottom load-bearing plate 5 of the two support frames 2, and multiple H-shaped hangers with annular parts are placed side by side on the bottom load-bearing plate 5. After the H-shaped hangers on the bottom load-bearing plate 5 are all in place, a sleeve is put on the column and the second load-bearing plate 5 is placed. Then, the H-shaped hanger 3 with annular parts is placed on the second load-bearing plate 5 of the two support frames 5. In this way, multiple layers of load-bearing plates 5 are erected and H-shaped hangers are placed from bottom to top, forming a multi-layer hanging of annular parts from bottom to top. Multiple annular parts are hung on each H-shaped hanger 3, and multiple H-shaped hangers are supported on each layer of load-bearing plate 5, forming a multi-layer arrangement and hanging of annular parts, improving space utilization and improving the production efficiency of carburizing and quenching.

[0025] The bearing plate 5 includes a plate body 51 and an end tube 52 integrally formed at the end of the plate body 51. The end tube 52 is sleeved on the column 4 and abuts against the sleeve 6. The H-shaped hanger 3 is supported on the plate body 51. The end tube 52 is sleeved on the main column 4 to form a connection between the bearing plate 5 and the column 4. The end tube 52 abuts against the sleeve 6, and the adjacent bearing plates 5 are separated by the sleeve 6. The bearing plate 5 and the column 4 are easy to disassemble and assemble, which is convenient for quickly setting up the support frame 2 on the bottom plate 1, thereby improving practicality.

[0026] The H-shaped sling 3 includes two support rods 31, a connecting rod 32 integrally formed between the two support rods 31, and an annular part is passed through the two support rods 31. The support rods 31 have grooves 33 for positioning with the annular part. The two support rods 31 are in contact with the inner ring of the annular part respectively, forming two supporting points for the annular part, reducing the shaking of the annular part on the H-shaped sling 3, and the annular part is positioned in the groove 33 in cooperation with the groove 33, preventing the annular part from moving on the H-shaped sling, thereby improving the stability of the mounting of the annular part.

[0027] The outer surface of the support rod 31 has an integrally formed protrusion 34, and a groove 33 is formed between adjacent protrusions 34. The protrusion 34 contacts the end surface of the annular part, and the bottom surface of the groove 33 contacts the inner ring of the annular part to form a support point of the support rod for the annular part. The protrusion 34 contacts the end surface of the annular part to prevent the annular part from moving along the H-type hanger. The annular part is positioned in the groove, and the bottom surface of the groove 33 contacts the inner ring of the annular part to form a support point. The H-type hanger forms a two-point support for the annular part, which effectively reduces the shaking of the annular part on the H-type hanger and improves the stability of the installation of the annular part.

[0028] The cross-sections of the support rod 31 and the connecting rod 32 are both elliptical. The support rod 31 has a lifting fitting section 35 that can be matched with the lifting arm. The lifting fitting section 35 is not provided with a groove. The top and bottom surfaces of the plate body 51 are both serrated surfaces, and the support rod 31 cooperates with the tooth grooves of the serrated surface to position the H-type sling 3 on the load-bearing plate 5. When placing the H-type sling 3 on the load-bearing plate 5, the lifting arm is required to clamp the H-type sling 3 and then lift it for placement. The lifting fitting section 35 is used for clamping the lifting arm. The lifting fitting section 35 is not provided with a groove and an annular part cannot be mounted. The lifting fitting section 35 occupies at most one-sixth of the length of the support rod 31 to ensure that the H-type sling is evenly loaded after the annular part is hung. The tooth grooves of the serrated surface on the plate body 51 cooperate with the support rod 31 to prevent the support rod 31 from moving on the plate body 51, and the H-type sling 3 is positioned on the load-bearing plate 5, further improving the stability of the mounting and hanging of the annular parts.

[0029] The above is a complete description of the technical solutions of the embodiments of the utility model in combination with the accompanying drawings. It should be noted that the described embodiments are only part of the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

Claims

1. Carburizing rack for annular parts, characterized by: It includes a horizontally arranged base plate, two support frames vertically installed on the base plate and an H-shaped H-shaped sling horizontally supported on the two support frames. The support frame is a multi-layer structure, and each layer supports multiple H-shaped slings arranged side by side. The annular parts are passed through the H-shaped slings and are positioned and matched with the H-shaped slings.

2. The ring-shaped parts carburizing rack according to claim 1, characterized in that: The support frame includes two columns inserted into the base plate, a load-bearing plate connecting the two columns and arranged horizontally, and a sleeve sleeved on the columns. The load-bearing plates are evenly spaced in multiple layers on the columns from bottom to top, and adjacent load-bearing plates are separated by sleeves. The bottom load-bearing plate is also separated from the base plate by sleeves. The H-shaped sling is supported on the load-bearing plate.

3. The ring-shaped parts carburizing rack according to claim 2, characterized in that: The bearing plate comprises a plate body and an end tube integrally formed at the end of the plate body, the end tube is sleeved on the column and abuts against the sleeve, and the H-shaped hanger is supported on the plate body.

4. The ring-shaped parts carburizing rack according to claim 2, characterized in that: The H-shaped sling comprises two support rods and a connecting rod integrally formed between the two support rods. The annular part is passed through the two support rods, and the support rod is provided with a groove which is positioned and matched with the annular part.

5. The ring-shaped parts carburizing rack according to claim 4, characterized in that: The outer surface of the support rod has an integrally formed convex block, and grooves are formed between adjacent convex blocks. The convex blocks contact the end surface of the annular part, and the bottom surface of the groove contacts the inner ring of the annular part to form the support point of the support rod for the annular part.

6. The ring-shaped parts carburizing rack according to claim 4, characterized in that: The cross-sections of the support rod and the connecting rod are both elliptical. The support rod has a lifting matching section that can cooperate with the lifting arm. No groove is set on the lifting matching section. The top and bottom surfaces of the plate body are both serrated surfaces, and the support rod cooperates with the tooth grooves of the serrated surface to position the H-shaped sling on the load-bearing plate.

Images