At present, the gauge baffles used by TB/T1495.1-92 clip I-type fasteners are 6, 10, 14, and 20, of which 6 and 10 are suitable for 60kg/M rails, and 14 and 14 are suitable for No. 20 is suitable for 50kg/M rail. The gauge adjustment range is +12~-8mm for 60kg/M rail, +16~-8mm for 50kg/M rail, and the gauge adjustment is small. After the rail has been used for a period of time, due to the action of the wheel and rail, the steel rail on the curve will have side wear. Therefore, the gauge should be expanded accordingly. According to the railway line maintenance rules, the maximum allowable side wear of the 60kg/M rail is 19mm, and the 50kg/M rail The maximum allowable side wear amount is 17mm, the measurement of the rail side wear amount is 14mm below the rail surface, and the gauge measurement is 16mm below the rail surface. When the rail side wear amount reaches the maximum allowable value, the 60kg/M rail and The gauge of the 50kg/M rail is enlarged by 18mm and 16mm respectively. The adopted gauge baffle cannot meet the need of gauge adjustment when the rail side grinding amount reaches the allowable maximum value.
The purpose of this utility model is to provide a large gauge gauge baffle for railway fasteners, which can increase the gauge adjustment of the fasteners. /M rail is +18～-14mm, 75kg/M rail is +16～-16mm, to meet the needs of gauge adjustment when the rail side grinding reaches the allowable maximum value.
The purpose of this utility model is to use steel or cast iron to form a flat square whole by forging or casting, the length M is 80-110mm, the width N is 100-120mm, the thickness D is 6-10mm, and there is a square or circle in the middle. Shape, square, oval threaded spikes, the location and size of the threaded spikes should ensure that the gauge baffle does not conflict with the threaded spikes when adjusting the gauge. From the longitudinal section of the gauge baffle, its rear arc end is a concave upward circular arc, the radius of the arc should match the withholding elastic strip and the supporting baffle seat, and its front end is an upwardly raised boss The upturned height of the pressure plate is 4-12mm. The slope and length of the pressure plate are determined by the position of the rail to be withheld and the slope of the bottom of the rail. Since the basic rail types laid on the railway line are 50kg/M, 60kg/M and 75kg/M steel rails, the utility model is also designed into three types: 3, 13, and 21. Their materials and shapes are the same, and they are only suitable for Different rail types differ in the design of the perforation position and size of the screw spikes and the horizontal distance L from the intersection of the vertical pressure rail bottom inclined contact surface of the front pressure plate and the horizontal top rail bottom inclined contact surface to the arc center of the rear arc end. , the number of the gauge baffle is equal to the L value minus 56.7mm. The L value of the No. 3 gauge baffle is 59.7mm, the L value of the No. 13 gauge baffle is 69.7mm, and the L value of the No. 21 gauge baffle is 77.7mm, of which No. 3 and No. 13 are suitable for 60kg/M And 75kg/M rail, No. 13 and No. 21 are suitable for 50kg/M rail, the above three types of gauge baffles are listed in the attached table on different rail types, according to the need for gauge adjustment. In the case of inside and outside configuration applications.
The advantage of adopting the utility model is that the gauge adjustment amount of 50kg/M steel rail can reach +18～-10mm, the gauge adjustment amount of 60kg/M steel rail can reach +18～-14mm, and the gauge adjustment amount of 75kg/M steel rail can reach +16mm ～-16mm, which can meet the needs of gauge adjustment. At the same time, the types of gauge baffles have been reduced from the original four to three. The 13th large-gauge gauge baffle is commonly used for 50, 60, and 75kg/M rails. When the line is replaced from 50kg/M rails to 60 or 75kg/M rails, half of the gauge baffles of the large gauge can be reused, which has greater economic benefits.