Tool for improving quenching effect of inner wall of large flange

Abstract

The utility model relates to a tool for improving the quenching effect of the inner wall of a large flange. The tool comprises a support frame and a submersible pump mechanism, the supporting frame is divided into a flange supporting area and a submersible pump supporting area in the length direction of the supporting frame. A first fence is arranged at the front end of the flange supporting area, baffles are arranged at the two ends of the top of the first fence, and the two baffles are obliquely welded to the two ends of the top of the first fence and are large in upper end and small in lower end. Positioning blocks are fixed to the two sides of the rear end of the flange supporting area, and the opposite side faces of the two positioning blocks are of a cambered surface structure. Protection plates are evenly arranged on the periphery of the submersible pump supporting area. The submersible pump mechanism comprises a submersible pump and a connecting pipe; the submersible pump is arranged in the submersible pump supporting area, and a water inlet faces downwards; a water inlet of the connecting pipe is connected with a water outlet of the submersible pump, and a water outlet of the connecting pipe is horizontally arranged and points to the first fence. According to the utility model, the cooling effect of the whole large flange during quenching is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing and manufacturing, in particular to a tooling for improving the quenching effect of the inner wall of a large flange. Background Art

[0002] Flange quenching is a heat treatment process in which the flange is heated above the critical temperature, held for a period of time, and then rapidly cooled to obtain the required structure and properties. Specifically, when quenching the flange, it needs to be heated to a temperature above Ac3 or Ac1, held for a period of time to make all or part of it austenitized, and then rapidly cooled to below Ms (or isothermally near Ms) at a cooling rate greater than the critical cooling rate for martensite (or bainite) transformation. During this process, temperature, holding time, and cooling rate are all key parameters, which will affect the structure and properties after quenching.

[0003] Due to the thick cylindrical entity of the flange shaft and the high heat capacity of the material, during induction quenching, large thermal deformation will occur in the inner hole, which will in turn affect subsequent internal spline broaching operations or other finishing steps.

[0004] It is desired to provide a tooling for improving the quenching effect of the inner wall of a large flange, in order to solve the above technical problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a tooling for improving the quenching effect of the inner wall of a large flange, which can effectively ensure the cooling effect during the quenching of the overall large flange.

[0006] To achieve the above object of the utility model, a tooling for improving the quenching effect of the inner wall of a large flange is provided, including a support frame and a submersible pump mechanism;

[0007] The support frame is divided into a flange support area and a submersible pump support area along its length direction;

[0008] The front end of the flange support area is provided with a first fence, and both ends of the top of the first fence are provided with baffles. The two baffles are obliquely welded to both ends of the top of the first fence, and the upper end is large and the lower end is small;

[0009] Positioning blocks are fixed on both sides of the rear end of the flange support area. The facing side surfaces of the two positioning blocks are arc-shaped structures, and the two arc-shaped structures are adapted to the flange end of the large flange to be supported;

[0010] The periphery of the submersible pump support area is evenly provided with protective plates;

[0011] The submersible pump mechanism includes a submersible pump and a connecting pipe;

[0012] The submersible pump is arranged in the submersible pump support area, and the water inlet faces downward;

[0013] The water inlet of the connecting pipe is connected to the water outlet of the submersible pump. The water outlet of the connecting pipe is horizontally arranged and points to the first fence. The height of the water outlet of the connecting pipe is adapted to the through hole at the flange end of the large flange to be quenched.

[0014] Preferably, baffles are provided on the sides of the two positioning blocks facing the first fence.

[0015] Preferably, reinforcing bars are welded on the flange support area. One end of the reinforcing bar is welded at the middle position of the top of the first fence, and the other end is welded at the middle position of the rear end of the flange support area.

[0016] Preferably, a protective net is provided at the water inlet of the submersible pump.

[0017] Preferably, lifting rings are provided on both sides of the support frame.

[0018] A tooling for improving the quenching effect of the inner wall of a large flange according to the present utility model has the following advantages compared with the prior art:

[0019] (1) Through the submersible pump mechanism, water is sprayed into the through hole of the large flange, accelerating the flow rate of the cooling water in the quenching pool and improving the cooling effect on the through hole and the whole of the large flange;

[0020] (2) The design is simple and easy to use. Description of the Drawings

[0021] Figure 1 It is a schematic structural view of the flange support area of this embodiment;

[0022] Figure 2 It is a schematic structural view of a tooling for improving the quenching effect of the inner wall of a large flange of this embodiment;

[0023] Figure 3 It is a schematic working state view of a tooling for improving the quenching effect of the inner wall of a large flange of this embodiment. Detailed Embodiments

[0024] The following further describes the present utility model with reference to the drawings and specific embodiments.

[0025] As Figure 2 shown, a tooling for improving the quenching effect of the inner wall of a large flange includes a support frame 1 and a submersible pump mechanism.

[0026] The support frame 1 is divided into a flange support area 2 and a submersible pump support area 3 along its length direction.

[0027] As Figure 1As shown, the front end of the flange support area 2 has a first fence 4, and both ends of the top of the first fence 4 have baffles 5. The two baffles 5 are obliquely welded to both ends of the top of the first fence 4, with the upper end being larger and the lower end being smaller.

[0028] On both sides of the rear end of the flange support area 2, positioning blocks 6 are fixed. The facing sides of the two positioning blocks 6 are arc surface structures 7, and the two arc surface structures 7 are adapted to the flange ends of the large flange to be supported.

[0029] In this embodiment, there are baffles 8 on the sides of the two positioning blocks 6 facing the first fence, effectively preventing the connection end of the large flange from slipping off the arc surface structure.

[0030] In this embodiment, a reinforcing bar 9 is welded on the flange support area 2. One end of the reinforcing bar 9 is welded to the middle position of the top of the first fence 4, and the other end is welded to the middle position of the rear end of the flange support area 2; thus effectively improving the strength of the flange support area.

[0031] The periphery of the submersible pump support area 3 is evenly provided with a protective plate 10.

[0032] The submersible pump mechanism includes a submersible pump 11 and a connecting pipe 12; the submersible pump 11 is arranged in the submersible pump support area 3, and its water inlet faces downward; the water inlet of the connecting pipe 12 is connected to the water outlet of the submersible pump 11, the water outlet of the connecting pipe 12 is horizontally arranged and points to the first fence 4, and the height of the water outlet of the connecting pipe 12 is adapted to the through hole of the flange end of the large flange to be quenched.

[0033] In this embodiment, a protective net 13 is arranged at the water inlet of the submersible pump 11, effectively preventing sundries in the quenching pool from entering the submersible pump and causing damage.

[0034] In this embodiment, lifting rings 14 are arranged on both sides of the support frame 1, facilitating the external crane to lift the support frame and place it in the quenching pool.

[0035] As Figure 3 As shown, when quenching the large flange, first load the heat-treated large flange 15 on the flange support area 2 of the support frame 1, and make the curved surface of the flange end of the large flange 15 support on the arc surface structures 7 on the two positioning blocks 6. The baffles 8 on the two positioning blocks 6 play a limiting role for the flange. The front end of the large flange 15 supports on the top of the first fence 4 and is limited by the two baffles 5. Transfer the support frame loaded with the large flange to the quenching pool by a crane, start the submersible pump 11, and the water outlet of the connecting pipe 12 connected to the submersible pump 11 is aligned with the through hole of the large flange, accelerating the flow of the cooling water and effectively ensuring the cooling effect at the through hole of the large flange.

[0036] The preferred embodiments of the present utility model have been specifically described above. However, the present utility model is not limited to the described embodiments. Those skilled in the art can also make various equivalent modifications or substitutions without departing from the spirit of the present utility model. These equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A tool for improving the quenching effect of the inner wall of a large flange, characterized in that: including a support frame and a submersible pump mechanism; The support frame is divided into a flange support area and a submersible pump support area along its length direction; The front end of the flange support area is provided with a first fence, and both ends of the top of the first fence are provided with baffles, and the two baffles are welded obliquely at the two ends of the top of the first fence, and the upper end is larger and the lower end is smaller; Positioning blocks are fixed on both sides of the rear end of the flange support area, and the sides of the two positioning blocks facing each other are arc surface structures, and the two arc surface structures are adapted to the flange ends of the large flange to be supported; Protective plates are evenly arranged around the submersible pump support area; The submersible pump mechanism comprises a submersible pump and a connecting pipe; The submersible pump is arranged in the submersible pump supporting area, and the water inlet faces downward; The water inlet of the connecting pipe is connected to the water outlet of the submersible pump. The water outlet of the connecting pipe is horizontally arranged and points to the first fence. The height of the water outlet of the connecting pipe is adapted to the through hole of the flange end of the large flange to be quenched.

2. A tool for improving the quenching effect of the inner wall of a large flange according to claim 1, characterized in that: The two positioning blocks are provided with baffles on the sides facing the first fence.

3. The tooling for improving the quenching effect of the inner wall of a large flange according to claim 1, characterized in that: A reinforcement strip is welded on the flange support area, one end of the reinforcement strip is welded to the middle position of the top of the first fence, and the other end is welded to the middle position of the rear end of the flange support area.

4. The tooling for improving the quenching effect of the inner wall of a large flange according to claim 1, characterized in that: A protective net is arranged at the water inlet of the submersible pump.

5. A tool for improving the quenching effect of the inner wall of a large flange according to any one of claims 1 to 4, characterized in that: Both sides of the support frame are provided with lifting rings.

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