CN2664830Y

CN2664830Y - Unilateral fillet rolling press device of axle type part

Info

Publication number: CN2664830Y
Application number: CNU2003201255452U
Authority: CN
Inventors: 李满良
Original assignee: Dongfeng Motor Co Ltd
Current assignee: Dongfeng Motor Co Ltd
Priority date: 2003-12-23
Filing date: 2003-12-23
Publication date: 2004-12-22
Anticipated expiration: 2013-12-23

Abstract

The utility model relates to an unilateral fillet rolling press device of axle type part, including gyro wheel and support roller, its characterized in that: the device also comprises a balance sleeve, the diameter of the balance sleeve is the same as that of the shaft neck rolled by the part, and the balance sleeve is provided with a single-side round angle the same as that of the part; during rolling, the balance sleeve is fixed at the end part of the part through a fastener and is connected with the part into a whole to form an additional fillet of the rolling journal. The device has two matched fillets on the shaft due to the adoption of the balance sleeve, and during rolling, the rolling force is balanced on the rolled shaft neck, additional rolling axial force and radial force cannot be generated on other parts of the shaft, and the deformation of the shaft cannot be increased.

Description

The monolateral fillet rolling device of a kind of axial workpiece

Technical field: the utility model belongs to mechanical manufacturing field, relates in particular to a kind of monolateral fillet rolling device of axial workpiece.

Background technology: two fillet roll extrusion simultaneously on axle journal during general axial workpiece finish rolling hardening, its axial force obtains balance in an axle journal.When an axle journal had only a monolateral fillet, what have withstood the milled head side with oil cylinder and carries out roll extrusion, and this is more common in the full-automatic crankshaft rolling machine of import, though the milled head axial force has obtained balance, part has born additional axial force, is easy to generate distortion; If simply roller press or only fillet of roll extrusion all do not have the side direction oil cylinder mostly, often be difficult to realize.For example bent axle first trunnion has only a fillet, and what have does not just carry out finish rolling hardening; Crankshaft front end is installed the shoulder of timing gears, and iff the moment of torsion of gear transmission engine interior, the intensity of the shaft shoulder can meet the demands, but has many engines to need from front end output torque, and it is not enough that the intensity at this position seems, fracture accident often takes place.Restructure and design or other schedule of reinforcement, implement difficulty, it is effective schedule of reinforcement that such shaft shoulder is carried out fillet rolling.

Summary of the invention: the utility model part when solving general axial workpiece finish rolling hardening bears additional axial force and is easy to generate the problem of distortion, a kind of monolateral fillet rolling device of axial workpiece is proposed, comprise roller and supporting roller, it is characterized in that: described device also comprises balance set, the diameter of described balance set is identical with the axle journal diameter of part institute roll extrusion, and the monolateral fillet identical with described part arranged; During roll extrusion, described balance set is fixed on described part end by securing member, is connected as a single entity with described part, becomes the additional fillet of described roll extrusion axle journal.

This device is owing to adopting balance set to make axle that two fillets that match arranged, and the roll extrusion power during roll extrusion has obtained balance on the axle journal of institute's roll extrusion, can not produce additional roll extrusion axial force and radial load to other positions of axle, also can not increase the distortion of axle.

Description of drawings: Fig. 1 is a monolateral fillet rolling device user mode structural representation of the present utility model.

The specific embodiment: as shown in Figure 1, the monolateral fillet rolling device of this axial workpiece comprises roller 2, supporting roller 5 and balance set, and wherein axial workpiece 1 is monolateral fillet, the diameter of the axle journal 6 of 1 roll extrusion of the diameter of balance set 3 and part is identical, and the monolateral fillet 7 identical with part 1 arranged; During roll extrusion, balance set 3 is fixed on the end of part 1 by securing member 4, is connected as a single entity with part 1, makes the monolateral fillet 7 on the balance set 3 constitute the additional fillet of roll extrusion axle journals 6.Because the fillet of balance set 3 is identical with the fillet and the outside dimension of axial workpiece 1, two fillets that match are then just arranged on the axial workpiece 1, during roll extrusion, the power that is pressed on the roller 2 is decomposed into axial force and radial load, radial load and support cylinder 5 balances, and axial force balance between axle and balance set, therefore, roll extrusion power has obtained balance on the axle journal of institute's roll extrusion, can not produce additional roll extrusion axial force and radial load to other positions of axle, make the monolateral roll extrusion of axial workpiece become possibility, also can not increase the distortion of axle.

Claims

1, a kind of monolateral fillet rolling device of axial workpiece comprises roller and supporting roller, and it is characterized in that: described device also comprises balance set, and the diameter of described balance set is identical with the axle journal diameter of part institute roll extrusion, and the monolateral fillet identical with described part arranged; During roll extrusion, described balance set is fixed on described part end by securing member, is connected as a single entity with described part, becomes the additional fillet of described roll extrusion axle journal.