Railway ballast cleaning device

Abstract

The utility model relates to the field of railway ballast cleaning in rail transit, and provides a railway ballast cleaning device which comprises a framework, a lifting mechanism, a hydraulic rotary driving assembly, a walking assembly and a rolling brush assembly, the lifting mechanism drives a lead screw nut to ascend and descend through a hydraulic motor, and the whole rolling brush assembly ascends or descends relative to the position of a steel rail. According to the railway ballast cleaning device, continuous sleeper surface cleaning can be carried out, the height distance between the rolling brush and a sleeper can be flexibly adjusted, and it is guaranteed that no railway ballast gravel exists on the sleeper surface and a sleeper shoulder.

Description

Technical Field

[0001] The utility model relates to the field of ballast cleaning in rail transit, in particular to a railway ballast cleaning device. Background Art

[0002] Cleaning is an important task in rail transit operation and maintenance. The main way to backfill railway ballast is to use the excavator bucket to backfill the ballast to the edge of the track bed sleepers, and then use a tamping machine to compact it. After the tamping machine compacts, the ballast will splash on the track sleeper surface and shoulder, and there will be excess ballast in the track bed. If the excess ballast on the track sleeper surface and track bed is not cleaned in time, it will bring great safety hazards to the safety of train operation after the line is opened. At present, the ballast splashed on the sleeper surface and shoulder is cleaned manually, which is labor-intensive and inefficient. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and to provide a railway ballast cleaning device which can continuously clean the sleeper surface and flexibly adjust the height spacing between the roller brush and the sleeper to ensure that there is no ballast gravel on the sleeper surface and the sleeper shoulder.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a railway ballast cleaning device, including a frame, a lifting mechanism, a hydraulic rotary drive assembly, a running assembly, and a roller brush assembly. The lifting mechanism drives the screw nut to rise and fall through a hydraulic motor, so that the overall position of the roller brush assembly rises or falls relative to the rail.

[0005] In the above technical scheme, the lifting mechanism includes a hydraulic motor, an external fixed guide seat, a trapezoidal screw nut seat, a trapezoidal screw, an inner lifting tube, and a traveling leg. The hydraulic motor is connected to the trapezoidal screw, the lower end of the traveling leg is connected to the traveling roller by a bolt, the upper end of the traveling leg is connected to the inner lifting tube by a screw, and the trapezoidal screw nut seat is connected to the inner lifting tube by a bolt. When the hydraulic motor drives the trapezoidal screw to rotate, the trapezoidal screw nut seat will drive the inner lifting tube to move up and down, thereby controlling the relative position between the traveling wheel and the roller brush assembly.

[0006] In the above technical scheme, the roller brush assembly includes a passive sprocket, a supporting bearing seat, a hose, a roller brush shaft, and a pin shaft, and the hydraulic rotary drive assembly includes a driving sprocket, a chain, and a hydraulic motor; the roller brush assembly and the hydraulic motor are respectively installed at the bottom and top of the frame. When the hydraulic motors installed on the left and right sides of the frame rotate at the same time, the hydraulic motor drives the driving sprocket to rotate, and through the transmission of the chain, drives the passive sprocket to rotate, thereby driving the rotation of the roller brush shaft. The roller brush shaft is connected with hoses of different lengths through pin shafts, and the overall contoured sleeper structure, when the hose contacts the gravel on the upper surface of the sleeper, it rotates to sweep the gravel to the gap between the sleepers, and at the same time drives the roller brush device along the railway line through the excavator.

[0007] In the above technical solution, the railway ballast cleaning device includes a hydraulic rotary drive to control the overall rotation and swing of the ballast cleaning device.

[0008] In the above technical solution, the railway ballast cleaning device includes a quick connector for connecting the ballast cleaning device to the excavator arm, and the excavator drives the device to perform mobile operations on the railway rail line.

[0009] The railway ballast cleaning device has the following beneficial effects:

[0010] 1. The roller brush with profiled sleeper structure can effectively clean the ballast and gravel on the sleepers;

[0011] 2. The height distance between the roller brush and the sleeper can be flexibly adjusted by using the hydraulic lifting mechanism to ensure cleaning efficiency;

[0012] 3. The rubber tube is used as the roller brush medium, which can not only ensure that the sleepers are not damaged during the roller brushing, but also sweep the gravel from the sleepers to the gaps between the sleepers;

[0013] 4. It can automatically clean the ballast and gravel on the sleepers instead of manual work, without the need for additional power, only the hydraulic power provided by the excavator is needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the working status of the railway ballast cleaning device.

[0015] Figure 2 It is a schematic structural diagram of a railway ballast cleaning device according to an embodiment of the utility model.

[0016] Figure 3 It is a structural diagram of the lifting mechanism.

[0017] Figure 4 It is a structural schematic diagram of the roller brush assembly and the hydraulic rotary drive assembly. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] The present embodiment provides a railway ballast cleaning device, which is mainly composed of a frame 1, a hydraulic rotary drive 2, a quick connector 3, a lifting mechanism 4, a hydraulic rotary drive assembly 5, a running assembly 6, a roller brush assembly 7, and a protective cover assembly 8. Figure 1 , Figure 2 shown.

[0022] The skeleton 1 of the ballast cleaning device is welded by profiles and plays the role of overall support. A hydraulic rotary drive 2, a quick connector 3, a lifting mechanism 4, a hydraulic rotary drive assembly 5, a running assembly 6, and a roller brush assembly 7 are installed on it; the hydraulic rotary drive 2 controls the overall rotation and swing of the ballast cleaning device so that the running wheels in the running assembly are just placed on the rails 9, and the angle can be adjusted at will, which is convenient for adjusting the angle of the ballast cleaning device during hoisting and transportation; the quick connector 3 is used to connect the device to the excavator arm, and the excavator The machine drives the device to move on the railway rail line; the lifting mechanism 4 drives the lifting and lowering of the screw nut through the hydraulic motor, so that the roller brush assembly 7 as a whole rises and falls relative to the rail, and controls the distance between the roller brush and the sleeper; the running assembly 6 controls the ballast cleaning device to move along the railway rail 9 so as not to go off the track; the hydraulic rotary drive assembly 5 is used to drive the roller brush assembly 7 to make a circular motion, and through the rolling of the roller brush assembly 7, the ballast crushed stone on the upper surface of the sleeper is rolled to the gap between the sleepers 10 and the sleepers, ensuring that there is no ballast crushed stone on the upper surface of the sleeper.

[0023] like Figure 3As shown, the lifting mechanism 4 includes a hydraulic motor 41, an external fixed guide seat 42, a trapezoidal screw nut seat 43, a trapezoidal screw 44, an inner lifting tube 45, and a running leg 46. The hydraulic motor 41 is connected to the trapezoidal screw 44, the lower end of the running leg 46 is connected to the running roller 6 by a bolt, the upper end of the running leg 46 is connected to the inner lifting tube 45 by a screw, and the trapezoidal nut seat 43 is connected to the inner lifting tube 45 by a bolt. When the hydraulic motor 41 drives the trapezoidal screw 44 to rotate, the nut seat will drive the inner lifting tube 45 to move up and down, thereby driving the running leg to move up and down, controlling the relative position height between the running wheel and the roller brush 7, and ensuring that the roller brush cleans the gravel on the sleeper during cleaning.

[0024] like Figure 4 As shown, the roller brush assembly 7 includes a passive sprocket 71, a supporting bearing seat 72, a hose 73, a roller brush shaft 74, and a pin 75. The hydraulic rotary drive assembly 5 includes a driving sprocket 51, a chain 52, and a hydraulic motor 53. The roller brush assembly 7 and the hydraulic motor 53 are respectively installed at the bottom and top of the skeleton 1. When the hydraulic motors 53 installed on the left and right sides of the skeleton 1 rotate at the same time, the hydraulic motor 53 drives the driving sprocket 51 to rotate, and drives the passive sprocket 71 to rotate through the transmission of the chain 52, thereby driving the rotation of the roller brush shaft 74. The roller brush shaft 74 is connected with hoses 73 of different lengths through pins. When the hose 73 contacts the gravel on the upper surface of the sleeper, the gravel is swept to the gap between the sleepers by rotation. At the same time, the roller brush device is driven by the excavator to move along the railway line, thereby realizing the function of quickly cleaning the gravel on the sleepers along the railway.

[0025] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A railway ballast cleaning device, comprising a frame, a lifting mechanism, a hydraulic rotary drive assembly, a running assembly, and a roller brush assembly, characterized in that: The lifting mechanism drives the screw nut to rise and fall through the hydraulic motor, so that the roller brush assembly as a whole rises or falls relative to the rail.

2. The railway ballast cleaning device according to claim 1, characterized in that: The lifting mechanism includes a hydraulic motor, an external fixed guide seat, a trapezoidal screw nut seat, a trapezoidal screw, an inner lifting tube, and a traveling leg. The hydraulic motor is connected to the trapezoidal screw, the lower end of the traveling leg is connected to the traveling roller by a bolt, the upper end of the traveling leg is connected to the inner lifting tube by a screw, and the trapezoidal screw nut seat is connected to the inner lifting tube by a bolt. When the hydraulic motor drives the trapezoidal screw to rotate, the trapezoidal screw nut seat will drive the inner lifting tube to move up and down to control the relative position between the traveling wheel and the roller brush assembly.

3. The railway ballast cleaning device according to claim 1, characterized in that: The roller brush assembly includes a passive sprocket, a supporting bearing seat, a hose, a roller brush shaft, and a pin shaft. The hydraulic rotary drive assembly includes a driving sprocket, a chain, and a hydraulic motor. The roller brush assembly and the hydraulic motor are respectively installed at the bottom and top of the frame. When the hydraulic motors installed on the left and right sides of the frame rotate at the same time, the hydraulic motor drives the driving sprocket to rotate, and drives the passive sprocket to rotate through the transmission of the chain, thereby driving the rotation of the roller brush shaft. The roller brush shaft is connected to hoses of different lengths through pin shafts. When the hose contacts the gravel on the upper surface of the sleepers, the gravel is swept to the gap between the sleepers through rotation, and the roller brush device is driven by the excavator to move along the railway line.

4. The railway ballast cleaning device according to claim 1, characterized in that: It includes a hydraulic rotary drive to control the overall rotation and swing of the ballast cleaning device.

5. The railway ballast cleaning device according to claim 1, characterized in that: It comprises a quick connector, which is used to connect the ballast cleaning device with the small arm of the excavator, and the excavator drives the device to perform mobile operation on the railway rail line.

6. The railway ballast cleaning device according to claim 1, characterized in that: Includes protective cover assembly.

Images