Static contact for quickly assembling contact arm in circuit breaker and using method

Abstract

The invention provides a static contact for quickly assembling a contact arm in a circuit breaker and a using method, and belongs to the breaker assembly test technical field. The structure of the static contact in a test cabinet is changed, and an inner through hole for assembling is arranged in the middle, so that during installation of a contact arm, an operator can align and connect the contact arm with the static contact, then fix the contact arm on a breaker, and thus complete assembly. According to the scheme for completing inspection of the contact arm in the assembling process, the assembled contact arm can meet the requirements, special secondary inspection is not needed, assembly and inspection are combined, and on the premise the accuracy is ensured, the cost is low, the assembly efficiency of the circuit breaker is greatly improved, the workload of workers can be reduced, fatigue work is avoided, and the whole device is simple in structure, high in reliability and easy toassemble.

Description

technical field [0001] The invention belongs to the technical field of circuit breaker assembly and inspection, and in particular relates to a static contact used for assembling a contact arm in a circuit breaker and a use method thereof. Background technique [0002] Today's society is a world where electricity is the main source of energy. To use electricity safely and effectively, circuit breakers are essential, and their demand is extremely huge. At present, the contact arm part of most models of circuit breakers is an essential and important part of the circuit breaker. If the installation of the contact arm position is not up to standard, it will directly affect the quality of the product, and even completely match the primary static contact placed in the substation equipment. If not, the circuit breaker cannot be installed. In order to ensure that the installation position of the contact arm of the circuit breaker is qualified, a contact arm inspection process is spe...

AI Technical Summary

Problems solved by technology

This method can more accurately check whether the contact arm of the circuit breaker is qualified, but the disadvantage is also obvious, that is, the inspection process is extremely cumbersome, which will increase the workload of workers and directly lead to low assembly efficiency.

Another disadvantage is that the static contacts are worn out greatly. To inspect the contact arm of a circuit breaker, it is necessary to insert the static contact three or four times before and after to accurately adjust the position of the contact arm to meet the design requirements.

After a lot of wear and tear, if it is not noticed, it will lead to an extremely large number of substandard products flowing to the market, and a large number of complaints after sales and return applications will bring great damage to the manufacturer's investment reputation and benefits

[0005] In order to avoid this situation, some manufacturers have also developed infrared or laser positioning to check whether the contact arm is qualified. This method can also test the accuracy of the contact arm, and solve the problem that the static contact head is seriously worn out by the above method and many inferior products are shipped.

But the biggest problem with this method is that the cost is too expensive and the cost performance is too low.

The detection of the position of the contact arm requires high accuracy, which needs to be accurate to the millimeter level. The cost of a set of this equipment is higher than the replacement of hundreds of old-fashioned static contacts, and it will also face damage after a period of use. Replace the equipment Or the modules in it will also require a lot of money to invest in maintenance, and the cost investment is too large

Images