CN104646910A - Pressing roller shaft journal abrasion repairing method - Google Patents

Abstract

The invention discloses a pressing roller shaft journal abrasion repairing method and relates to the technical field of sugar cane crushing equipment. The repairing method includes the steps of 1) detecting damage to check cracks after a pressing roller shaft journal is abraded; 2) melt-blowing multiple layers of materials to the treated surface of the pressing roller shaft journal with no crack and grinding the pressing roller shaft journal to the original size; 3) removing or filling cracks of the pressing roller shaft journal with the shallow cracks, forming a key groove to mount a forged steel key in an embedded mode after removing the cracks of the pressing roller shaft journal with the deep cracks, wherein the key is welded to a base; 4) performing vibration stress relief treatment after firmly welding the forged steel key, spraying with DH rods, melt-blowing multiple layers of materials, and grinding to the original size. The pressing roller shaft journal abrasion repairing method can solve the problem of economic losses of pressing roller shaft scraping.

Description

The restorative procedure of pressure roller shaft neck wearing and tearing

Technical field

The present invention relates to cane milling machinery technical field, especially a kind of restorative procedure for cane pressing roller of sugar axle journal.

Background technology

Pressure roller are parts of the press apparatus on the crushing sugar cane production line of sugar refinery, these pressure roller diameters are general all larger, mostly between 860 to 1200 millimeters, the effect of pressure roller mainly transmitting rotary power, usually stressed comparatively large, pressure roller shaft neck place easily cracks and scraps, and economic interests loss is larger, the pressure roller scrapped, if reparation will reduce considerable economic loss, squeeze the smooth production in season to sugar refinery simultaneously and try to gain time precious to one.

Summary of the invention

Technical problem to be solved by this invention be to provide a kind of pressure roller shaft neck wearing and tearing restorative procedure, it can solve because of squeeze roll shaft scrap the problem causing economic loss.

In order to solve the problem, technical scheme of the present invention is: the restorative procedure of this pressure roller shaft neck wearing and tearing, and reparation step is as follows:

1) after squeezing roller journal wear, first detect a flaw, check there is flawless;

2) flawlessly after squeezing roller journal surface after treatment melt-blown multilayer material, size is milled to;

3) have crackle, the plane that crackle is more shallow falls or fills and leads up, spline after the removal crackle that crackle is darker setting-in forged steel key, and key welds with matrix;

4) carry out vibration stress relief treatment after welding forged steel key, then with the spraying of DH welding rod, after melt-blown multilayer material, be milled to size.

Owing to adopting technique scheme, the present invention has following beneficial effect:

Squeezing roll shaft after reparation can use two to squeeze season, and one is squeezed roll shaft and can save unit up to ten thousand; Economic benefit is considerable.

Detailed description of the invention

Below in conjunction with embodiment, the present invention is further described:

Embodiment 1: one squeezing roll shaft finds that its axle journal weares and teares, and reparation step is as follows:

1) pressure roller shaft neck place finds that there is crackle through being provided with of flaw detection;

2) size is milled to after melt-blown multilayer material after cleaning being carried out to this squeezing roller shaft neck surface.

Embodiment 2:

1) pressure roller shaft neck place finds that there is crackle through what detect a flaw, and crack depth is 0.6 millimeter;

2) by the degree of depth be 0.6 millimeter crackle plane fall, be milled to size after melt-blown multilayer material after then carrying out cleaning.

Embodiment 3: one squeezing roll shaft finds that its axle journal weares and teares, and reparation step is as follows:

1) pressure roller shaft neck place finds that there is crackle through what detect a flaw, and crack depth is 2 millimeters;

2) by the degree of depth be 2 millimeters crackle plane fall, then spline setting-in forged steel key, and key welds with matrix; 3) carry out vibration stress relief treatment after welding forged steel key, then with the spraying of DH welding rod, after melt-blown multilayer material, be milled to size.

Claims (1)

1. a restorative procedure for pressure roller shaft neck wearing and tearing, it is characterized in that, the step of reparation is as follows:

1) after squeezing roller journal wear, first detect a flaw, check there is flawless;

2) flawlessly after squeezing roller journal surface after treatment melt-blown multilayer material, size is milled to;

3) have crackle, the plane that crackle is more shallow falls or fills and leads up, spline after the removal crackle that crackle is darker setting-in forged steel key, and key welds with matrix;

4) carry out vibration stress relief treatment after welding forged steel key, then with the spraying of DH welding rod, after melt-blown multilayer material, be milled to size.