CN2463080Y - Steel-base composite bimetallic worm-gear - Google Patents

Abstract

The utility model discloses a steel-base composite bimetallic worm-gear, belonging to the worm-gear class. The steel-base composite bimetallic worm-gear comprises a steel-base wheel body. The steel-base composite bimetallic worm-gear is mainly characterized in that the outer edge of the steel-base wheel body is compounded with a copper alloy gear ring. As the gear ring and the wheel body are compounded into a whole structure, the size and the thickness of the gear ring can be reduced, a great amount of copper alloy is saved. Under an unoxidized condition, by high temperature and high pressure, the ring gear and the wheel body can be easily compounded into the whole. Thus, the manufacture technique of the steel-base composite bimetallic worm-gear is simplified, and quality is stable; the utility model is suitable for mass production.

Description

Base steel bimetal composite worm gear

The utility model belongs to worm gear type, specifically is a kind of base steel bimetal composite worm gear.

In the worm reducer of domestic and international designed manufacturing at present, valuable antifriction material casting commonly used, the tin-phosphor bronze alloy is as the worm gear material, the gear less to size adopts the integral cast formula, larger-size worm gear, gear ring bolt interconnection system or the gear rings of adopting are pieced together forms such as casting formula more, these methods all can be saved the part precious metal, but the intensity when guaranteeing that worm gear uses, will thicken the size of copper alloy gear ring, this outer bolt connects will the quality of fit requirement, piece together the casting formula and have casting flaw, often cause intensity to descend, safety coefficient reduces, difficult quality guarantee, and processing technology complexity, the manufacturing cost height, the designer has done some improvement to the structure of worm gear for this reason, as the Chinese patent communique disclosed patent No. in 18 days January nineteen ninety-five is: 93232649.8, and name is called: the patent of base steel abrasion-proof duplex metal worm gear, it is all to process last layer tin-phosphor bronze alloy on each flank of tooth surface of worm gear, though still there has been complex process in a large amount of precious metal that this worm gear is saved, be difficult to produce in enormous quantities, the cost height, the defective of difficult quality guarantee.

It is a kind of simple in structure that the purpose of this utility model is to provide, and technology is simple, is suitable for producing in enormous quantities, and steady quality can be saved the base steel bimetal composite worm gear of a large amount of precious metals.

The utility model is achieved through the following technical solutions:

A kind of base steel bimetal composite worm gear comprises the base steel wheel body, and the worm gear main feature is a base steel wheel body outer rim complex copper alloy gear ring.

Compound by steel ring between the outer rim of above-mentioned base steel wheel body and the copper alloy gear ring is an integral body.

The utility model compared with prior art, because the structure that has adopted gear ring and wheel body to be processed as one by compound form, so can reduce the thickness of gear ring, save a large amount of copper alloys, is one not having promptly can be relatively easy to gear ring through high temperature, high pressure under the condition of oxidation with the wheel bluk recombination, and steady quality.

Describe in further detail below in conjunction with Figure of description:

Fig. 1: the utility model embodiment 1 structural representation.

Fig. 2: the utility model embodiment 2 structural representations.

As Fig. 1 or shown in Figure 2, this base steel bimetal composite worm gear comprises base steel wheel body 2, base steel wheel body 2 outer rim complex copper alloy gear rings 1.

The outer rim of above-mentioned base steel wheel body 2 also can be compound by steel ring 3 and copper alloy gear ring 1 is an integral body.

Adding man-hour, copper alloy gear ring 1 cover is installed to the outer rim of base steel wheel body 2, then both are put under the condition that does not have oxidation through high temperature, high pressure, promptly being relatively easy to gear ring is one with the wheel bluk recombination, the molecule that two kinds of unlike materials of cause are materials is at high temperature, mutually combine under the hyperbaric environment, so both are by being firm compound for an integral body after handling, present technique has been simplified the worm gear manufacturing process, that promptly need not carry out gear ring and worm wheel body again cooperates processing and Bolt Connection, and steady quality, the product strength height, suitable giving in production in enormous quantities, because both are combined into for an integral body, so but the thickness of copper alloy gear ring 1 is with regard to attenuate, the comprehensive base steel wheel body 2 that adopts, reduce the copper consumption of gear ring, saved a large amount of precious metal-copper alloys thus, reduced the manufacturing cost of product with this, this worm gear also can adopt as shown in Figure 2 install the version of steel ring 3 additional at base steel wheel body 2 and copper alloy gear ring 1, processing mode is the same, effect is identical, and present technique can adopt the copper alloy of multiple compositions such as tin-phosphor bronze.

Claims (2)

1, a kind of base steel bimetal composite worm gear comprises the base steel wheel body, it is characterized in that base steel wheel body outer rim complex copper alloy gear ring.

2, base steel bimetal composite worm gear according to claim 1 is characterized in that compound by steel ring between the outer rim of base steel wheel body and the copper alloy gear ring is an integral body.

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