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20、25型拖拉机牵引的1.5吨无液压自卸装置的两轮拖车,可以简单地改装成两轮机械自卸拖车。具体改装方法是:用气割将原车牵引板割断,使其与车厢分开,在车厢前下大梁槽钢上焊两块连接板1(即槽钢里外各焊一块),再在牵引板上焊连接块3,用销轴2将牵引板连接块与车厢大梁槽钢上的连接块联接起来(亦即使牵引板与车厢之间呈铰接)。然后在牵引板上焊一50×50毫米的角钢10作为牵引加固,并在角钢上安装一个锁定装置(锁定装置由斜块带轴5、锁定座6及弹簧7等组成)和操纵装置(操纵装置由联片8和拉杆9组成)。另外,为了保证拖车非自
Two-wheeled trailers with a 1.5-ton hydraulic dump and unloaded by 20,25 tractors can be easily converted into two-wheeled mechanical dump trailers. The specific modification method is: Cut the original car traction plate with gas cutting, make it separate from the car, in front of the car under the girder channel welding two connecting plate 1 (that is, inside and outside the channel a welding), and then in the traction plate Weld connecting block 3, with the pin 2 connecting the pull plate connecting block and the connecting piece on the rail of the girder of the car frame (even though the drawing board is hinged with the carriage). Then, a 50 × 50mm angle steel 10 is welded on the traction plate as a traction reinforcement, and a locking device (the locking device is composed of the inclined block shaft 5, the locking base 6 and the spring 7, etc.) and the operating device Device by the joint 8 and the lever 9). In addition, in order to ensure the trailer is not self