Railway rail fastener recycling operation vehicle and rail exchanging fastener recycling operation method

Abstract

The invention relates to a railway rail fastener recycling operation vehicle. An obliquely suspended transmission belt conveyor is arranged on a traveling flat vehicle body, and the lower terminal is provided with a magnetic rolling drum; both ends of a center shaft of an upper terminal drive roller of the transmission belt conveyor are supported by two upper fulcrums of a U-shaped drive connecting element, and a lower fulcrum of the U-shaped drive connecting element is supported on the vehicle body by a joint bearing. The railway rail fastener recycling operation vehicle can carry out marshalling operation with a rail exchanging operation vehicle to finish the recycling operation of fasteners. The transmission belt conveyor integrally realizes three-point support positioning by the one-point positioning of the upper terminal drive roller, and the upper terminal can swing in the longitudinal direction, the transverse direction and the vertical direction; and the invention prevents a derailing or clamping phenomenon of an idler wheel bracket by overlarge offset of the lower terminal due to fixation of the transmission belt conveyor at the two fulcrums of the upper end, ensures thatthe magnetic rolling drum can be always maintained in the center position between two rails, meets the operation requirement of the vehicle body on the rails with smaller curve radius, and has simpleand reliable structure without manual intervention in the operation process.

Description

technical field [0001] The invention relates to a railway construction machine and a construction operation method, in particular to an automatic recovery vehicle for a railway rail fixing fastener and a recovery operation method for the rail-changing fastener. Background technique [0002] In the process of railway construction operations such as rail change and pillow change, old nuts, pressure plates, elastic strips and other fasteners need to be recycled. The common recycling method is manual recycling. Because the mileage of railway construction operations is generally long, the workload is large, and the efficiency is low. The safety is low, and those skilled in the art are exploring methods and devices for automatic recycling of fasteners. In the prior art, there have been fastener recovery vehicles that use magnetic drums for adsorption and automatic recovery, which are generally used as auxiliary operation vehicles for railway construction machinery such as rail-cha...

AI Technical Summary

Problems solved by technology

The magnetic adsorption method is a commonly used fastener recovery method, but its recovery rate is affected by factors such as the adsorption capacity of the magnetic drum, the adsorption width, and whether it can be operated on a road section with a small curve radius. For example, a method disclosed in the prior art A method and device for synchronously and automatically recovering fasteners while changing rails. It adopts an electromagnetic drum to absorb the fasteners, and then conveys them to the car body by an uploading belt conveyor and then stores them in a fastener recovery box, which is located on the uploading belt. The electromagnetic drum at the lower end of the conveyor is cylindrical with equal diameter and made of electromagnet. The effective suction range of the electromagnetic drum is generally within 30mm between the lowest point of the drum surface and the sleeper surface. Its adsorption capacity is limited, and the width of the electromagnetic drum is generally The distance between the two tracks is generally 1435mm. The width range of the adsorption between the two tracks is not completely covered. There is still a certain distance between the two ends of the electromagnetic drum and the tracks on both sides. It is placed in the adsorption area of ​​the road center, and the electromagnetic drum is required to be kept in the center position all the time to meet the adsorption requirements. However, in actual operation, it is difficult to ensure that all the fasteners can be placed in this area. At the same time, it is difficult to ensure that the electromagnetic drum is always in the middle position between the two rails. The above factors seriously affect the recovery rate of fasteners.

Moreover, when this method is used for the commonly used type II sleepers and Type III sleepers with low middle and high ends, the maximum distance between the lowest point of the electromagnetic drum surface and the sleeper surface is up to 100mm, even by increasing the current in the circuit. Improving the magnetic force is also difficult to achieve sufficient adsorption force requirements, and it also makes the entire mechanism structure too complicated

If the length of the magnetic drum is shortened to extend into the low section of the track center for effective suction, the suction width is too small, and the requirements for the placement of the dismantled fasteners are also stricter, which affects the recovery efficiency and operation efficiency of the fasteners, and does not achieve automatic The effect of recycling

On the other hand, both ends of the upper drive cylinder of the uploading belt conveyor are fixed on the car body, which is a two-point support method. The magnetic roller drum at the lower end is supported by two roller brackets respectively erected on the rails. The point support means that the uploading belt conveyor can only make limited rotation around the transmission cylinder at the upper end of the uploading belt conveyor, and can not move relative to the car body in the horizontal plane and vertical direction.

When passing through a track with a small curve radius, the uploading belt conveyor will have a certain offset with the car body relative to the rail, and cannot always maintain a centered position with the change of the track curve radius, resulting in the lower end of the uploading belt conveyor being prone to roller brackets falling off Road or stuck phenomenon, there are potential safety hazards, affect the operating efficiency, also greatly limit the curve passing ability of the fastener recovery vehicle, unable to pass the track with a curve radius of less than 180 meters, and the fastener recovery vehicle in the prior art is not equipped with guards. The rail lifting device cannot control the upright state of the unfixed or incompletely fixed rails and the distance between the two rails. Once the rails are tilted or the gauge is too large, it is easy to cause construction vehicles such as operating vehicles to fall off or tip over. For safety accidents, the general handling method requires the help of other equipment to complete the reset process, such as using a crane to hoist the fastener recovery vehicle as a whole, manually cooperate to reset the wheel set, or use multiple hydraulic jacks to lift the fasteners at different positions. The recovery work vehicle is supported and lifted to a certain height, and then the wheel set is reset by manual cooperation. In the process, since the bogie in the prior art is not fixed in the vertical direction, the bogie Some parts usually need to be jacked up again to complete the alignment and reset of the bogie wheel set and the track

Since the car body itself is not equipped with a self-recovering device, the site requirements and equipment requirements for the lifting operation are relatively high, and the number of workers in the lifting process is large, and it is difficult to guarantee the safety of the construction personnel. A lot of work preparations are required. long time

[0003] In summary, the fastener recovery device in the prior art has low operating efficiency, low fastener recovery rate, serious fastener loss, and potential safety hazards. It is not suitable for the fastener recovery needs in railway construction operations such as rail changes. further improvement

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