Small forced vibrating asynchronous-clamping hydraulic tamper

Abstract

The invention discloses a hydraulic tamper, in particular to a small forced vibrating asynchronous-clamping hydraulic tamper, which is formed by a lifting part, a travelling part and an exciting and clamping part. The exciting and clamping part is formed by a flywheel, a spline shaft, eccentric bearings, clamping oil cylinders and pick plates. One end of a belt is sheathed on the output shaft of a motor and the other end of the belt is sheathed on the spline shaft. The flywheel is sheathed at the external side end of the spline shaft. Four eccentric bearings are sequentially installed on the spline shaft. The external side of each eccentric bearing is connected with the corresponding clamping oil cylinder. The two ends of each clamping oil cylinder are connected with the upper fulcrums of the corresponding pick plate. Preferably, the exciting frequency of the exciting and clamping part is 45-50Hz. The vibration amplitude of the pick head of the pick plate is 4-5mm. Moreover, the invention has the advantages that the safety performance is good, i.e. the railway transport safety and the personal safety of operators can be ensured, the mechanical fault rate is low, the reliability is very good, the structure is simple, the volume is small, the weight is light, the movement is convenient and the quality of tampering operation is superior to the quality of the tampering operation of the existing small eccentrically-vibrating hydraulic tamper.

Description

Technical field [0001] The invention relates to a special machine used for the tamping operation of a railway line ballast bed, in particular to a small forced vibration asynchronous clamping hydraulic tamping machine. Background technique [0002] Due to the rolling action of rolling stock, the ballast bed will deform and sink. To restore the smoothness of the line and ensure the safe and high-speed operation of the train, it is necessary to carry out the line tamping operation. This is an important task for railway line maintenance operations. [0003] The traditional tamping operation is full manual labor with manual picks (cooperating with lifting tools). Low work efficiency and high labor intensity. my country's railways began to mechanize track maintenance in the 1960s, and gradually popularized the use of small hydraulic tamping machines (small hydraulic tamping) in the 1970s. It is still the main model for tamping operations on general main lines and branch lines of nati...

AI Technical Summary

Problems solved by technology

Comparing the two models, the ability of the eccentric vibration to disturb the ballast bed is poor, and the effect of synchronous clamping can not reach the effect of asynchronous clamping, because the resistance conditions of ballast in various places must be inconsistent.

In addition, according to the requirements of the railway maintenance rules (referred to as "maintenance regulations"), the width of the tamping operation on each side of the sleeper must not be less than 400 mm, otherwise the quality of the tamping operation cannot be guaranteed.

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