Device for local surface oxidation treatment of pressure-bearing supporting body

Abstract

The utility model belongs to the technical field of part manufacturing, and particularly relates to a local surface oxidation treatment device for a pressure-bearing supporting body, which comprises a lifting appliance, an upper baffle plate, a lower baffle plate, a nut a and a nut b, the upper baffle plate and the lower baffle plate respectively cover the upper end surface and the inner end surface of the pressure-bearing supporting body, and the nut a is screwed on the upper edge of a thread of the lifting appliance; an inner hole of an upper baffle penetrates through a lifting appliance bolt column to abut against a nut a, an inner hole of a pressure-bearing supporting body penetrates through a lifting appliance, the upper end face of the pressure-bearing supporting body abuts against the lower surface of the upper baffle, an inner hole of a lower baffle penetrates through the lifting appliance bolt column, and the upper surface of the lower baffle abuts against the inner end face of the pressure-bearing supporting body. And the nut b abuts against the lower end face of the lower baffle and is screwed on the bolt column of the lifting appliance. The device has better protection on the non-oxidation treatment surface of the part, does not damage an oxidation film on the surface of the part, is stable in hoisting, safe, reliable and convenient to assemble and disassemble in the local surface oxidation process, and can meet the requirement of local surface oxidation treatment of the pressure-bearing support body.

Description

Technical Field

[0001] The utility model belongs to the technical field of parts manufacturing, and particularly relates to a device for oxidation treatment of the local surface of a pressure-bearing support body. Background Art

[0002] In the prior art, a pressure-bearing support body part is made of 38CrSi, which is a medium-carbon alloy structural steel. It is an important part in the gearbox and requires oxidation treatment. After the part is assembled and ground with other parts on the inner end face, the local outer circle size needs to be re-ground, and the grinding position and the inner circle of the same size need to be re-surface oxidized, but the surface of the remaining parts is not allowed to be oxidized. In order to ensure the quality of the parts, it is necessary to design a design tool and protect the non-oxidized surface, while making the local surface oxidation treatment smooth. The tool should be convenient for actual operation during the oxidation treatment process, so that the local surface oxidation process of the parts can be effectively implemented. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model proposes a device for local surface oxidation treatment of a pressure-bearing support body, including a hanger, an upper baffle, a lower baffle, a nut a and a nut b, the upper baffle and the lower baffle cover the upper end face and the inner end face of the pressure-bearing support body respectively, the hanger passes through the inner hole of the upper baffle, the inner hole of the pressure-bearing support body and the inner hole of the lower baffle, and is fastened with nuts a and b, nut a is tightened on the upper edge of the hanger thread, the inner hole of the upper baffle is passed through the hanger bolt column and pressed against nut a, the inner hole of the pressure-bearing support body is passed through the hanger, the upper end face of the pressure-bearing support body is pressed against the lower surface of the upper baffle, the inner hole of the lower baffle is passed through the hanger bolt column, the upper surface of the lower baffle is pressed against the inner end face of the pressure-bearing support body, nut b is pressed against the lower end face of the lower baffle and tightened on the bolt column of the hanger.

[0004] Furthermore, the hanger is in the shape of a hook, including a hook part and a straight rod part, the two parts are welded together, and one end of the straight rod part has an external thread.

[0005] Furthermore, the upper baffle plate and the lower baffle plate are respectively provided with four through holes.

[0006] Furthermore, a boss is provided on one side of the lower baffle, and the outer circle of the boss is gap-matched with the inner hole of the pressure-bearing support body.

[0007] The utility model has a good effect during use, the parts are hoisted stably, safely and reliably, the tooling is convenient to disassemble, and the parts can be locally oxidized and the non-oxidized surface protection requirements can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1It is a structural diagram of the utility model, wherein 1 is a hanger, 2 is a nut a, 3 is an upper baffle, 4 is a lower baffle, and 5 is a nut b;

[0009] Figure 2 This is the structure diagram of the spreader;

[0010] Figure 3 for Figure 2 Schematic diagram of the slope at position I in the middle;

[0011] Figure 4 Two views of the upper baffle, where (a) is a front view and (b) is a left view;

[0012] Figure 5 Two views of the lower baffle, where (a) is the front view and (b) is the left view. DETAILED DESCRIPTION

[0013] In order to better understand the purpose, technical solution and function of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings, but the utility model can be implemented in a variety of different ways defined and covered by the claims. The drawings that constitute a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model.

[0014] For parts with surface oxidation treatment, in order to ensure that the quality of the parts meets the requirements of the drawings after local surface oxidation, the utility model combines the characteristics of the part structure and the oxidation tank structure to design a tooling for local surface oxidation treatment of the parts and protection of the non-oxidized surface, so that the local surface oxidation process of the parts is effectively implemented, thereby ensuring that the quality of the product meets the requirements of the drawings. The tooling is safe and reliable during the local surface oxidation process, and is easy to assemble and disassemble.

[0015] like Figure 1 As shown, the upper baffle plate 3 and the lower baffle plate 4 of the device for partial surface oxidation treatment of a pressure-bearing support body of the utility model respectively cover the upper end surface and the inner end surface of the pressure-bearing support body and fit tightly. The hanger 1 passes through the inner hole of the upper baffle plate 3, the inner hole of the pressure-bearing support body and the inner hole of the lower baffle plate 4, and is fastened with nuts a2 and b5.

[0016] Before assembling the device with the pressure support, check whether the tooling is intact, and clean the impurities and oil stains on the parts and tooling to avoid affecting the oxidation treatment effect. After the partial oxidation treatment of the part surface is completed, dismantle the tooling and check whether the quality of the oxidized surface and the non-oxidized surface meets the requirements according to the surface oxidation treatment requirements.

[0017] like Figure 2 , 3As shown, the sling 1 is mainly used for lifting parts. The structural design of the device is as follows: the material is Q235 steel plate, the thickness of the steel plate is 20mm, the total length of the sling is 630mm, the steel plate is cut and formed, and then machined into a 20x20mm square steel. The position of the sling hook is determined according to the actual size of the oxidation tank crane. The hook shape of the sling 1 is cut and formed, which is convenient for loading and unloading the sling and increases the service life of the sling 1. Because the length of the sling 1 is too long and the equipment travel is limited during machining, it is made of two bodies, one with a hook part and the other with a straight rod part, about 230mm long. The M18 external thread with a length of 85mm is processed at one end of the straight rod part, and then the two bodies are welded, that is, the end of the straight rod part without thread is aligned and welded with the end of the straight rod of the hook part. During welding, the weld is uniform and welding deformation is prevented. No leakage welding is allowed. After welding, it should be polished and smooth, and the welding slag should be cleaned.

[0018] like Figure 4 As shown, the upper baffle 3 is mainly used to protect the upper end surface of the pressure-bearing support body. The structural design of the device is as follows: the material is Q235 steel plate, the steel plate thickness is 10mm, the outer diameter is φ385mm, and the center is processed with a φ20mm through hole to ensure that the external thread at the lower end of the hanger 1 can pass smoothly. The surface of the upper baffle 3 is processed with 4 evenly distributed φ10mm through holes to reduce weight, dissipate water vapor and flow liquid, and ensure that the oxide film on the upper end surface of the part is not affected.

[0019] like Figure 5 As shown, the lower baffle 4 is mainly used to protect the inner end face and inner hole surface of the pressure-bearing support body. The structural design of the device is as follows: the material is Q235 steel plate, the total thickness of the steel plate is 20mm, the outer diameter is φ385mm, and the center is processed with a φ20mm through hole to ensure that the threaded hole at the lower end of the hanger 1 can pass smoothly. A φ240mm boss is processed on one side of the steel plate to support the inner hole of the part and ensure the smooth function of the part. Four evenly distributed φ10mm through holes are processed on the surface of the lower baffle to reduce weight, dissipate water vapor and flow liquid, and ensure that the inner end face of the part is not affected.

[0020] The utility model has a good effect during use, and is placed stably after being assembled with parts. After inspection, the non-oxidation treatment surface protection is good, and the oxide film on the surface of the parts is not damaged. The oxidation effect of the local oxidation treatment part of the surface is good, and the oxide film is complete, which meets the requirements of the drawings. During the local surface oxidation process, the hoisting is stable, relatively safe and reliable, and the loading and unloading is relatively convenient, which can meet the requirements of the local surface oxidation treatment of the pressure-bearing support body.

[0021] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for oxidation treatment of the local surface of a pressure-bearing support, characterized in that: It includes a hanger, an upper baffle, a lower baffle, nut a and nut b. The upper baffle and the lower baffle cover the upper end face and inner end face of the pressure support body respectively. The hanger passes through the inner hole of the upper baffle, the inner hole of the pressure support body and the inner hole of the lower baffle, and is fastened with nuts a and b. Nut a is tightened on the upper edge of the hanger thread, the inner hole of the upper baffle is passed through the hanger bolt column and pressed against nut a, the inner hole of the pressure support body is passed through the hanger so that the upper end face of the pressure support body is pressed against the lower surface of the upper baffle, the inner hole of the lower baffle is passed through the hanger bolt column so that the upper surface of the lower baffle is pressed against the inner end face of the pressure support body, nut b is pressed against the lower end face of the lower baffle and tightened on the bolt column of the hanger.

2. The device for partial surface oxidation treatment of a pressure-bearing support according to claim 1, characterized in that: The sling is in the shape of a hook, comprising a hook part and a straight rod part, the two parts are welded together, and one end of the straight rod part is provided with an external thread.

3. The device for partial surface oxidation treatment of a pressure-bearing support according to claim 1, characterized in that: The upper baffle plate and the lower baffle plate are respectively provided with four through holes.

4. The device for partial surface oxidation treatment of a pressure-bearing support according to claim 1, characterized in that: One side of the lower baffle is provided with a boss, and the outer circle of the boss is gap-matched with the inner hole of the pressure-bearing support body.

Images