Recently, the heat treatment plant of the Front Bridge Production Department of China Heavy-Duty Trucks Bridge Box Co., Ltd. seriously identified the problems during the construction of the “Lighthouse Line” and organized staff to explore and study hard to complete the auxiliary equipment for the detection of hardness of driven bevel gears with pot angle gears. Self-inspection special-purpose vehicles two improvement projects save money for the company.

Self-designed basin angular gear driven bevel gear hardness testing auxiliary device improves product hardness detection accuracy. Due to the fact that the tooth surface of the German Man MAN driven bevel gear product is not flat, the hardness test of the product can not be directly performed by conventional detection means. The man driven cone can only be inferred by testing the stiffness of the furnace block and the product's hardness. The hardness of gear products, the test method can not reflect the true hardness of the product, can not meet the exact testing requirements of Man products.

In view of this situation, the heat treatment plant of the Front Bridge Production Department of China National Heavy Duty Trucks and Bridges Co., Ltd. launched a number of improvement programs through "brainstorming". After continuous discussion and research, the final plan for self-designed auxiliary tooling was determined. The auxiliary tooling after the production can tilt the product to be inspected at a certain angle so that the tooth surface of the product is perpendicular to the needle of the hardness tester. This not only satisfies the precise detection requirements of MAN products, but also can be used for HOWO, AC26 and other followers. Online testing of gear tooth surface hardness.

The self-designed special car for the self-checking of the angular gear driven bevel gear has been designed to improve the appearance quality of the product. According to the requirements of the technological process, after the driven bevel gear is quenched in the hot one workshop, it is necessary to manually remove the product from the production line manually and transport it to the detection platform in the workshop of the second floor of the workshop of the second factory to carry out plane and ellipse testing. After the inspection, Then use the van to transport it back to the workshop. Due to the large volume and weight of driven bevel gears, it is easy to cause product bumps in manual handling, and there is a large potential safety hazard, which has become a major problem plaguing the construction of “beacon line”.

After many consultations, researches and discussions, the engineering and technical personnel and production staff of the heat treatment workshop of the Front Bridge Production Department of China Zhongqi Bridge Box Co., Ltd. determined the plan for self-designed and special-purpose vehicles. After the production of the self-inspection special vehicle is completed and put into use, the potted bevel gear driven bevel gear can be directly quenched at the end of the pressure quenching to the detection platform of the self-inspection special vehicle for product flatness and ellipticity detection, and product handling, inspection and other work can be performed on the production line. It can be completed by the side, which not only saves time and effort, but also eliminates potential safety hazards in the handling process, reduces scratching caused by the handling process, and improves the appearance of the product. The device can simultaneously meet the on-line detection of hardness flatness and ellipticity of driven wheel gears of MAN, HOWO HOWO, AC26, etc., which greatly improves the detection efficiency and speeds up the detection process.

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