CN203245182U

CN203245182U - Rolled kettle body flange

Info

Publication number: CN203245182U
Application number: CN 201320019151
Authority: CN
Inventors: 崔俊国
Original assignee: SHANDONG RUNCHI HEAVY FORGING CO Ltd
Current assignee: SHANDONG RUNCHI HEAVY FORGING CO Ltd
Priority date: 2013-01-14
Filing date: 2013-01-14
Publication date: 2013-10-23
Anticipated expiration: 2023-01-14

Abstract

The utility model discloses a rolled kettle body flange. A main roller is composed of a main roller body, a transition circular arc and a first annular concave surface. A core roller is composed of a core roller body, transition circular arcs, annular convex surfaces and annular concave surfaces. The lower position of a working portion of the main roller body is provided with the annular concave surface, and the transition circular arc is arranged on the annular concave surface. The middle and lower positions of the operating portion of the core roller main body are provided with the annular convex surfaces and the annular concave surfaces. The transition circular arcs are arranged on the annular convex surfaces and the annular concave surfaces. Circular arc transitions are adopted in operating portions of the main roller and the core roller main body. Metal flow resistance and the pressure on core roller main body in rolled forgings can be reduced. The metal is thus filled with the annular concave surfaces of the main roller and the core roller body so that annular grooves are filled in the plastic deformation of the metal to facilitate molding forged pieces and ideal structural shapes can be rolled. Meanwhile, expected shapes and dimensions of annular pieces are achieved. The main roller and the core roller of the kettle body are simple in structure and high in practicality and are high in popularization and application value.

Description

A kind of rolling kettle flange processed

Technical field

The utility model belongs to machinery manufacturing technology field, relates in particular to a kind of rolling kettle flange processed.

Background technology

As the kettle forging of large pressurized vessel, principal character is the hub that an abnormal shape is arranged at the workpiece external diameter, and internal diameter has a groove and a convex surface, if groove, the convex surface of this hub and internal diameter shut out, just must go out a loop concave at the home roll Excircle machining; Process an annular convex surface, loop concave so that metal is full of concave surface during in plastic deformation at core roller external diameter, thereby core roller convex surface is pressed into the shape and size that reach the expection workpiece in the workpiece.

The cylindrical that existing home roll adopts is for facing directly, and core roller cylindrical is that the workpiece of facing the system of rolling directly is straight-flanked ring, namely wastes material and has improved again the metal working difficulty of processing, increases process time, has strengthened processing cost.

The utility model content

The purpose of this utility model is to provide a kind of home roll, core roller of kettle flange, be intended to solve home roll that prior art provides, core external diameter that roller adopts for facing directly, the straight-flanked ring of rolling over out is namely wasted material and has been improved again the metal working difficulty of processing, increase process time, strengthened processing cost.

The utility model is achieved in that a kind of rolling kettle flange processed, and home roll comprises: home roll main body, transition arc, loop concave; The core roller comprises: core roller main body, transition arc, annular convex surface, loop concave:

The working portion lower position of home roll main body is processed with loop concave, is provided with transition arc on the loop concave;

The position, working portion middle and lower part of core roller main body is processed with annular convex surface, loop concave, and annular convex surface, loop concave are provided with transition arc;

Arc transition is taked in each working position of home roll, core roller main body.

Further, other positions of the cylindrical of described home roll and core roller are for facing directly.

The kettle flange home roll that the utility model provides is made of home roll main body, knuckle, loop concave; The core roller is by core roller main body, transition arc, annular convex surface, loop concave.Arc transition is taked in each working position of home roll, core roller main body, has effectively reduced metal flow resistance and home roll, the pressure when core roller main body is rolled over forging processed; Home roll has adopted loop concave, core roller main body adopts annular convex surface, loop concave structure, be convenient to the moulding of forging, the folded line of forging of having avoided producing because of the right angle in the operation of rolling is with loose, thereby roll out the planform of wanting, so that metal is full of loop concave, reach the ring shape and size of expection simultaneously when plastic deformation; This kettle flange home roll, core roll structure are simple, practical, have stronger propagation and employment and are worth.

Description of drawings

Fig. 1 is the structural representation of the kettle home roll that provides of the utility model embodiment.

Shown in the figure: 1, home roll main body; 2, transition arc; 3, loop concave.

Fig. 2 is the structural representation of the kettle core roller that provides of the utility model embodiment.

Shown in the figure: 1, core roller main body; 2, transition arc; 3, annular convex surface; 4 loop concaves.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Fig. 1, Fig. 2 show the kettle flange home roll that the utility model embodiment provides, the structure of core roller.For convenience of explanation, only show the part relevant with the utility model embodiment.

This kettle flange home roll comprises: home roll main body 1, knuckle 2, loop concave 3;

This kettle flange core roller comprises: core roller main body 1, knuckle 2, annular convex surface 3, loop concave 4;

The cylindrical bottom of home roll main body 1 arranges and is provided with transition arc 2 on the loop concave 3,1,3.

The cylindrical middle and lower part of core roller main body 1 arranges on annular convex surface 3, the loop concave 4,1,3,4 and is provided with transition arc 2.

In the utility model embodiment, arc transition is taked in each working position of home roll main body 1, and arc transition is taked in the working position of core roller main body 1.

In the utility model embodiment, home roll main body 1 adopts arc transition, loop concave structure.

Core roller main body 1 adopts arc transition, annular convex surface, loop concave structure.

Below in conjunction with drawings and the specific embodiments application principle of the present utility model is further described.

As shown in Figure 1, this kettle flange home roll comprises: home roll main body 1, transition arc 2, loop concave 3; The cylindrical bottom of home roll main body 1 processes a loop concave 3, and the connection transition portion of home roll main body 1, loop concave 3 is processed into knuckle 2; The core roller comprises: core roller main body 1, transition arc 2, annular convex surface 3, loop concave 4; Core roller main body middle and lower part processes annular convex surface 3, loop concave 4, and the connection transition portion of core roller main body 1, annular convex surface 3, loop concave 4 is processed into transition arc 2.Cooperate by this kettle flange core roller and this kettle flange home roll, roll out the planform of wanting, after using this kettle flange home roll, core roller, the rolling initial stage processed, the working portion upper end of home roll main body 1 at first contacts with workpiece with the annular convex surface of the working portion of core roller main body 1, and the middle and lower part is unsettled, the forging radial extent, this home roll, core roller main body 1 adopt the transition arc structure, are beneficial to metal to the filling of home roll loop concave section and the moulding of workpiece.

This kettle flange home roll, core roller cooperate every of the workpiece weight of forging can reduce more than 2/5, and economical with materials has improved profit margin and the competitive advantage of product, and forging is stressed relatively even, has effectively guaranteed product quality.

Kettle flange home roll, core roller that the utility model embodiment provides, arc transition is taked in each working position of home roll, core roller main body 1, has effectively reduced metal flow resistance and home roll, the pressure when core roller main body 1 is rolled over forging processed; Be beneficial to metal filled in the loop concave 3 of home roll main body 1, be convenient to the moulding of forging in the core collars shape concave surface 4, the forging of having avoided producing because of the right angle in the operation of rolling is folded line, thereby roll out the planform of wanting, so that metal is full of home roll annular groove 3, core collars connected in star 4, reach the ring shape and size of expection simultaneously when plastic deformation; This kettle flange home roll, core roll structure are simple, practical, alleviate the weight of forging, improve the intensity of forging, reduce machining time and difficulty, have stronger propagation and employment and are worth.

Below only be preferred embodiment of the present utility model, not in order to limiting the utility model, all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. roll over kettle flange processed for one kind, it is characterized in that this rolling kettle flange processed is provided with home roll, core roller; Home roll comprises: home roll main body, transition arc, loop concave; The core roller comprises: core roller main body, transition arc, annular convex surface, loop concave:

2. rolling as claimed in claim 1 kettle flange processed is characterized in that, other positions of the cylindrical of described home roll and core roller are for facing directly.