A leak detection and plugging assembly and plugging method for an oil passage hole of a tractor gearbox body

Abstract

The invention provides a tractor gear box body oil way hole leakage detection plugging component and a plugging method, and belongs to the field of machine manufacturing. A plugging panel assembly is fixedly arranged at the upper part of a gear box body; the upper part of the plugging panel assembly is connected with a combination valve block component through a connection pipe; a threaded hole stop block assembly is fixedly arranged at the upper part of the gear box body and at one side of the plugging panel assembly; an internal expanding plug assembly is arranged in the gear box body; the other end of the internal expanding plug assembly is connected with an air filter through a connection pipe. By adopting the plugging component and the plugging method, the problem of difficulty in realizing leakage detection of a power shifting tractor gear box body can be effectively solved; the plugging component is simple in structure, high in detection efficiency, low in detection cost, and rapid and convenient to assemble; different parts can be detected; the component is high in universality and can detect different parts.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and in particular relates to a leakage detection and plugging assembly and a plugging method for an oil passage hole of a gearbox body of a power shift tractor. Background technique [0002] The gearbox is one of the key components of the tractor. It forms the drive train with the rear axle, power take-off shaft transmission, four-wheel drive, brakes and other components. Its function is to convert the high speed and low torque output by the diesel engine into the drive axle and power Low speed and high torque of the output shaft. The tractor gearbox has developed from the initial manual shift mechanical gearbox and synchronous sleeve shift gearbox to today's power shift gearbox. enhanced. The power shift gearbox is mainly composed of three parts: mechanical transmission system, hydraulic control system and electronic control system. The tractor power shift gearbox is a mechanism that us...

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Problems solved by technology

[0010] 1. Non-universal and high cost: the existing leak detection and sealing components are designed according to the structure of each product to be tested, and different products cannot be used universally; however, there are many types of tractors and the production batch is small. If each product is equipped with a dedicated Leak detection and plugging components of advanced, cost is too high;

[0011] 2. For the leakage detection of the transmission body of the power shift tractor, the orifice structures of the above-mentioned oil passages all need to be blocked. There is no plugging assembly suitable for tractor power shift gearboxes. The method used for leak detection of power shift tractor gearbox bodies is to assemble the power shift gearbox first, and then determine the oil passage holes through drive train experiments. Whether it leaks, so its work efficiency is low and the cost is high

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