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研究国内外同类型拖拉机在我国的使用中所显示的效果,我们认为热托-6911拖拉机的液压制动装置效果好,操纵省力、使用方便。参照它的结构原理,在东方红-28拖拉机原有结构设计的基础上,将双端收缩带式制动器改进设计为液压自动调整间隙的蹄式制动器,并将原制动带保留改进设计为手制动装置,是可行的,在设计时,我们首先对原设计的主要指标进行了校核,并将所有的参数限制在允许值范围之内。对原制动装置的零部件,尽量少变动,这样有利于原拖拉机改装,井可降低成水,易于实施。对制动总泵、制动分泵、压力平衡器的设计,除必要的改变外,尽量保证其与结构参数有关的尺寸不变,以便得到可靠的使用性能。
Studying the effect of the same type of tractors at home and abroad in our country, we think the effect of hydraulic brake of Thermo-6911 tractor is good, the operation is labor-saving and easy to use. With reference to its structural principle, based on the original structural design of Dongfanghong-28 tractor, the improved double-ended retractable belt brake is designed as a shoe-brake with hydraulic self-adjusting clearance, and the original brake belt is reserved for improved design as a hand Brakes, it is feasible, at design time, we first of the original design of the main indicators have been checked, and all the parameters are limited to the allowable value range. The original brake components and spare parts, as little as possible changes, which is conducive to the conversion of the original tractor, wells can be reduced to water, easy to implement. Brake master cylinder, brake cylinder, pressure balancer design, in addition to the necessary changes, try to ensure that the structural parameters of the same size, in order to obtain reliable performance.