CN2248612Y

CN2248612Y - Large modulus plate for restoring open teeth-wheel

Info

Publication number: CN2248612Y
Application number: CN 95205527
Authority: CN
Inventors: 雷廷扬; 雷松滨
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-10
Filing date: 1995-03-10
Publication date: 1997-03-05
Anticipated expiration: 2005-03-10

Abstract

The utility model relates to a large modulus plate for repairing wheel teeth of an open teeth-wheel, which is a repair template welded at the side surface of wheel teeth of a large modulus open teeth-wheel. The utility model is provided with a welded basal plane which is the same as a lateral plane of a pre-repairing step of wheel teeth of an abrasion teeth-wheel and a welded lateral plane which is the same as a basal plane of a pre-repairing step of wheel teeth of an abraded teeth-wheel. A cut angle of the two welded planes is equal to a cut angle of the two plane of the pre-repairing step, the intermediate part is thick, and two sides are thin. When the utility model is used for repairing the wheel teeth of the large modulus open teeth-wheel, a pre-repairing step is grinded at the side surface of the wheel teeth firstly, the repair template is welded on the step, and thereby, weld work amount is less, the consumption of welding materials is saved, and abrasion resistance is high.

Description

The big modulus exposed gear gear teeth are repaired plate

The utility model relates to the awaiting parts of cane sugar manufacture industry manufacture of cement industry, rolling metal industry and the used large module gear of other industry.

Cane sugar manufacture industry, manufacture of cement industry, rolling metal industry and the used large module gear of other industry often cause the wearing and tearing of the gear teeth and need and repair owing to producing under powerful working environment now.Traditional restorative procedure generally adopts mild steel arc welding electrode built-up welding molded blank, thereby reaches the purpose of reparation through the grinder buffing flank of tooth and oxygen-acetylene surface hardening again.Consume welding rod a lot of (as modulus M=50 of built-up welding, the gear teeth of transverse tooth thickness 355mm, the number of teeth 14 will consume the welding rod about 250kg) when this method one is the built-up welding blank, the welding job amount is big, the welding cost height; The 2nd, because the volume and weight of soldered gear is big, be difficult to carry out effective heat treatment, and can only carry out oxygen-acetylene flame surface hardening, thus cause the quenching hardness and the depth of quenching not to reach specification requirement, cause the gear teeth double-fermented wine mill ability drop and the continuous shortening that are repaired so again with the phase.

The purpose of this utility model is to provide a kind of big modulus exposed gear gear teeth to repair plate, and it can be welded in through the tooth base both sides of the trimmed big modulus exposed gear gear teeth that those have worn and torn, and the wearing and tearing gear teeth are restored.

The utility model is the metallic prosthetic piece, it have one with the gear tooth that has worn and torn repair in advance the identical welding baseplane of step side plane and one and the gear tooth that worn and torn repair identical weld side plane, step baseplane in advance, and the angle of cut on this two welding plane equates with the angle between two planes that should repair step in advance, its thickness answers thick middle, both sides to approach, and its toothed surface should go up consistent with the intact odontoid and the size of the gear tooth that is repaired.

The utility model is used to repair the big modulus exposed gear gear teeth compared with having following advantage with the big modulus exposed gear of the welding method reparation gear teeth:

1, the consumption scolder is few.Only need weld a template circle all around owing to build by laying the gear teeth, so use welding rod few with this template configuration.

2, Forming Quality height.Because this recovery template can recover former gear teeth shape after it welds up fully by the design standard moulding fully.

3, the gear teeth anti-wear performance of Xiu Fuing is good.Because this recovery template can do heat treatment in advance under regular condition, thus can guarantee after repair by welding is to the gear tooth, to have enough abrasive resistances and grow continuously use the phase.

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the wearing and tearing concave surface of the abrased gear gear teeth and the pre-conditioning beds scalariform condition schematic diagram that need do with the utility model reparation thereof.

Fig. 2 is the utility model physique structure and the application feature schematic diagram in the gear tooth repair process thereof.

As shown in Figure 1, when the big modulus exposed gear gear teeth after after a while transmission wearing and tearing, can form the wearing and tearing concave surface shown in parallel curves among the figure, if after the wearing and tearing concave surface reaches to a certain degree, then this gear just can not be worked again and need and be repaired.A kind of just recovery template that provides for this repair of the utility model.As shown in Figure 2, the utility model is to be welded on the big modulus exposed gear gear teeth tooth base side of having worn and torn to repair finishing template on the step (shown in Fig. 1 dotted line) in advance.It is the square metal template that is surrounded by a, b, c, d, e, f, g, h, and its metal material should be consistent with the gear material of being repaired.Its welding baseplane abcd and the gear tooth among Fig. 1 are repaired step side plane ABCD in advance and are complementary on shape and size, and its weld side plane bchg then should be complementary on shape and size with the baseplane BCHG of the pre-finishing step of gear tooth among Fig. 1; The angle of cut on its abcd plane and bchg plane should equal to repair in advance the ABCD plane in the step and the angle of cut on BCHG plane, its thickness (6) should meet the involute design principle of gear tooth and be the thin state (shown in cross section abgf or dche) in thick middle both sides, thereby its toothed surface efgh, adef, abgf and cdeh of having welded should be consistent with the toothed surface of intact gear tooth one side.In the actual repair, generally be to polish the finishing step with emery wheel at the wheel flank of wearing and tearing earlier, again the utility model be clamped on the pre-finishing step with anchor clamps, then along ABGHCDA spot welding one circle, use smooth sealing wire of grinder buffing and finish trimming toothed surface at last, can reach the purpose of reparation.The utility model both can be used for the reparation of gear tooth one side of wearing and tearing, the reparation of the gear tooth bilateral that also can be used to wear and tear.

Claims

1, the big modulus exposed gear gear teeth are repaired plate, it is characterized in that it have one with the gear tooth that has worn and torn repair in advance the identical welding baseplane of step side plane and one and the gear tooth that worn and torn repair identical weld side plane, step baseplane in advance, and the angle of cut on this two welding plane equates with the angle between two planes that should repair step in advance, its thickness answers thick middle, both sides to approach, and its toothed surface should be consistent on shape and size with the intact toothed surface of the gear tooth that is repaired.