SU914159A1 - Apparatus for cross rolling of articles - Google Patents

Description

The invention relates to the processing of metal by pressure and can be used for cross rolling V solid and hollow products.

A device for cross-rolling products, containing mounted in the housing rolls with concave deforming surfaces, placed on hollow supports, eccentrically mounted relative to the axis of rolling, and the drive shaft G1).

In this device, the rolls rotate eccentrically relative to the axis of rolling, and they are driven from a sleeve with fingers rotating concentrically to the axis of rolling, resulting in rotation of the rolls at a variable speed, which creates difficulties in synchronizing the rotation of the workpiece, causing significant inertial effects on the bearings bushings. These

2

Phenomena decrease installation reliability and accuracy of rolled products.

The purpose of the invention is to improve the reliability of the device and the accuracy of rolled products.

This goal is achieved by the fact that in the device for cross rolling products containing rolls mounted in the body with vognu? ¹ ··· deform deforming surfaces, placed on hollow supports, eccentrically installed with respect to the rolling axis, and drive shaft, hollow supports are made with toothed rims and mounted for rotation, and the rolls are rigidly fixed on the ends of hollow supports.

In addition, the drive shaft of the device is made with toothed crowns,

I interacting with the toothed rims of hollow supports.

Moreover, the drive shaft is made of a composite of two elements interconnected, and is provided with me

914159

four

The change in the relative position of one of the elements relative to another, for example, a coupling.

This embodiment of the device allows to ensure the rotation of the rolls in the rolling process with the same angular speed in conventional bearings or rolling, and therefore it is possible to increase the speed of rotation of the rolls and rolling performance, as well as improving the reliability of the device and the accuracy of rolled products.

FIG. _1 shows a general view of the device, a section; in fig. 2 is a section A-A in FIG.

The device for transverse rolling of products includes a split housing 1, in which hollow supports 2 are mounted. 8 supports 2 are located rolls 3 with concave deforming surfaces 4.

Hollow bearings 2 are mounted in bearings 5 and fitted with gear rims 6. Rolls 3 are installed and rigidly mounted on the ends of 7 hollow supports 2. Gear rims 6 hollow supports 2 interact with gear rims 8 of shaft 9 of the drive. The drive shaft 9 is made of a composite of two elements interconnected, and is provided with a mechanism for changing the relative position of one of the elements relative to the other in the form of a clutch 10.

The device works as follows.

By the clutch 10, the rolls 3 are set symmetrically with respect to the rolling axis. Then turning on the drive (not shown in the drawings) imparts rotation to the drive shaft 9, while the rolls 3 get rotated in one direction. At the time of divergence. Valk 3 from the axis of rolling serves

the workpiece 11 in the rolling zone, rotating it about its axis at a speed proportional to the speed of rotation of rollers 3. When rotating rolls 3 vstu ₅ Payuta into contact with the workpiece 11 and deform it.

The device allows rolling both smooth cylindrical products and products such as splined shafts and

50 gears. When rolling the latter, the deforming surfaces of the rolls have teeth of a corresponding profile.

55

Claims (3)

Claim 1. Device for cross-rolling products, containing rolls mounted in the housing with concave 2o deforming surfaces, placed on hollow supports, eccentrically installed relative to the axis of rolling, and the drive shaft, characterized in that, with the aim 25 increase the reliability of the device and the accuracy of rolled products, hollow supports are made with toothed rims and mounted for rotation, and the rolls are rigidly fixed 30 at the ends of the hollow supports. 2. The device according to claim 1, which means that the drive shaft is made with toothed crowns that interact with the toothed crowns of hollow supports. 3. The device ηο, η.1, characterized in that the drive shaft is made of a composite of two elements interconnected, and provides 40 wives are a mechanism for changing the relative position of one of the elements relative to another, for example, a clutch.