AU2021103701A4

AU2021103701A4 - Self-Propelled Vehicle For Removing Sand From Track

Info

Publication number: AU2021103701A4
Application number: AU2021103701A
Authority: AU
Inventors: Xuefeng Cao; Chenghua DUAN; Lei Feng; Yunpeng Gao; Zhanfeng GAO; Lei Han; Yunzheng HE; Jun Li; Lu Li; Naisong LI; Yumei Li; Guodong Liu; Hong Liu; Ruijie LIU; Ting Liu; Zhiru Liu; Yanjun LV; Zhonghua MIAO; Gang Wang; Longqing Wang
Original assignee: Transportation And Engineering Branch Of China Railway No 3 Engineering Group Co Ltd; Shijiazhuang Tiedao University; China Railway No 3 Engineering Group Co Ltd
Current assignee: Transportation And Engineering Branch Of China Railway No3 Engineering Group Co Ltd; Shijiazhuang Tiedao University; China Railway No 3 Engineering Group Co Ltd
Priority date: 2019-07-02
Filing date: 2021-06-29
Publication date: 2021-08-19
Anticipated expiration: 2029-06-29
Also published as: CN110172946A; WO2021000894A1

Abstract

The present invention relates to the technical field of railway track maintenance devices, and disclosed thereby is a self-propelled vehicle for removing sand from a track. The vehicle comprises a driving cab, a walking apparatus and a sand collecting and discharging apparatus; a console is provided within the driving cab, the sand collecting and discharging apparatus is provided at the front of the driving cab, and the walking apparatus is provided below the driving cab, the walking apparatus being provided on a chassis of the driving cab; the walking apparatus comprises walking wheels, working wheels and driven wheels, and the walking wheels, working wheels and driven wheels are all provided on the chassis; the walking wheels for fast walking are driven by power components, and the working wheels for slow travel are driven by driving components. A driver can operate the driving components and power components by means of the console in the driving cab. By means of operating lifting components, the walking wheels and the working wheels alternately cooperate with a track to adapt to low-speed driving when in a sand-cleaning working state and to high-speed driving during transition, which meets the requirements for low-speed driving to clean the sand within the track as well as for high-speed driving and fast transition, reduces the intensity of labor for working personnel, and improves the efficiency of sand cleaning. Drawings of the Description 0 6 Fig. 1 1 7 12 2 6 ....... ...... ... ... 8 9 11 10 3 Fig. 2 1/2

Description

Drawings of the Description

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Description

SELF-PROPELLED VEHICLE FOR REMOVING SAND FROM TRACK

Technical field

The present invention belongs to the technical field of railway track maintenance equipment, and particularly relates to a self-propelled vehicle for removing sand from track.

Background Art

It is well-known that railway transportation is one of the irreplaceable transportation means in the transportation system. Railways are laid all over the country and are affected by various geographical environments. The traffic lines in sandstorm regions are often damaged by sandstorms, leading to train delays and even train rollover. On one hand, sand accumulates in the infrastructure of the traffic lines and hinders the normal operation of the trains; on the other hand, sand results in wearing of the railway infrastructure all the year round, and increases the risk of train derailment, causing severe potential safety hazards. At present, the maintenance of railway infrastructure, such as patrol check and sand removal, etc., is mainly done by manpower. Due to the heavy workload of manual sand removal, working efficiency is low.

Contents of the Invention

The object of the present invention is to provide a self-propelled vehicle for removing sand from track, in order to solve the technical problems of high labor intensity and low working efficiency in manual cleaning of the sand accumulated in tracks in the prior art. In order to solve the technical problem described above, the present invention employs the following technical solution: A self-propelled vehicle for removing sand from track includes a cab, a traveling device and a sand collecting and discharging device, wherein a control console for controlling the traveling device and the sand collecting and discharging device is arranged in the cab, the sand collecting and discharging device is arranged in front of the cab, and the traveling device is arranged below the cab; the travelling device is arranged on a chassis at the bottom of the cab, and includes travelling wheels, working wheels and driven wheels that are fitted with the track, wherein the travelling wheels, the working wheels and the driven wheels are arranged on the chassis, the travelling wheels that travel at a high speed are driven by a power component, the working wheels that travel at a low speed are driven by a driving component, both the power component and the driving component are controlled by the control console, and the travelling wheels and the working wheels are fitted with the track alternately via a lifting component. Preferably, two travelling wheels, two working wheels, and two driven wheels are provided respectively, the travelling wheels are arranged in front of the working wheels, and the driven wheels are arranged behind the working wheels; a driving axle is arranged between the two traveling wheels, the power component is connected with the driving axle via a transmission shaft, and the driving axle is connected with the chassis via the lifting component. Preferably, the two ends of the transmission shaft are connected with the power component and the driving axle via a coupling respectively. Preferably, the driving component is arranged in the chassis, and the power component is arranged on the bottom of the chassis.

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Preferably, the power component is a hydraulic motor, which is electrically connected with the control console. Preferably, the lifting component is a hydraulic cylinder, the two ends of which are rotatably connected with the chassis and the driving axle respectively. Preferably, the chassis is provided with a mounting base, the cylinder body of the hydraulic cylinder is rotatably connected with the mounting base, the driving axle is provided with a connecting base, and the end of a piston rod of the hydraulic cylinder is rotatably connected with the connecting base. The beneficial effects obtained from the above-mentioned technical solution include: compared with the prior art, the travelling wheels and the working wheels are fitted with the track alternately via the lifting component in the present invention, the driver can manipulate the driving component and the power component via the control console in the cab to adapt to the low-speed travel during sand removal and the high-speed travel during redeployment, so as to meet the requirement for removing the sand accumulated in the track while traveling at a low speed and performing redeployment while traveling at a high speed. With the present invention, the labor intensity of the workers can be decreased, the sand removing efficiency can be improved, and the safety of train operation can be ensured.

Description of Drawings

Here under the present invention will be further detailed in embodiments, with reference to the accompanying drawings. Fig. 1 is a schematic structural diagram of the self-propelled vehicle for removing sand from track provided in an embodiment of the present invention; Fig. 2 shows the working state of the travelling device in Fig. 1 during sand removal; Fig. 3 shows the high-speed traveling state of the travelling device in Fig. 1; In the figures: 00- sand collecting and discharging device, 1 - cab, 2 - chassis, 3 - track, 4 traveling wheel, 5- working wheel, 6 - driven wheel, 7 - lifting component, 8 - driving axle, 9 transmission shaft, 10 - power component, 11 - coupling, 12 - mounting base, 13- connecting base.

Embodiments

Hereunder the technical solution of the present invention will be described clearly and completely in embodiments with reference to the accompanying drawings. Apparently, the described embodiments are only some embodiments of the present invention, but not all embodiments of the present invention. On the basis of the embodiments provided herein, other embodiments obtained by those ordinary skills in the art without creative labor shall be deemed as falling into the protection scope of the present invention. As shown in Figs. 1-3, a self-propelled vehicle for removing sand from track includes a cab 1, a traveling device and a sand collecting and discharging device 00, wherein a control console for controlling the traveling device and the sand collecting and discharging device 00 is arranged in the cab 1, the sand collecting and discharging device 00 is arranged in front of the cab 1, and the traveling device is arranged below the cab 1; the travelling device is arranged on a chassis 2 at the bottom of the cab 1, and includes travelling wheels 4, working wheels 5 and driven wheels 6 that are fitted with the track 3, wherein the travelling wheels 4, the working wheels 5 and the driven wheels 6 are arranged on the chassis 2, the travelling wheels 4 that travel at a high speed are driven by a power component 10, the working wheels 5 that travel at a low speed are driven by a driving component, both the power component 10 and the driving component are controlled by the control console, and the travelling wheels 4 and the working wheels 5 are fitted with the track 3 alternately • 2 • via a lifting component 7. The driver controls the lifting component via the control console in the cab, so that the travelling wheels and the working wheels are fitted with the track alternately, to meet the requirement for removing the sand accumulated in the track while traveling at a low speed and quick redeployment while traveling at a high speed. The specific structure of the sand collecting and discharging device has been disclosed in detail in the Chinese Patent Application No. 2019102166201 titled as "Bucket Wheel Vehicle for sand removing from track" and will not be detailed further here. As a preferred structure, two travelling wheels 4, two working wheels 5, and two driven wheels 6 are provided respectively, the travelling wheels 4 are arranged in front of the working wheels 5, and the driven wheels 6 are arranged behind the working wheels 5; a driving axle 8 is arranged between the two traveling wheels 4, the power component is connected with the driving axle 8 via a transmission shaft 9, and the driving axle 8 is connected with the chassis 2 via the lifting component 7. The driving axle has the same structure as the rear axle of an automobile in the prior art, and includes a main reducer, an axle housing and semi-axles connected with the traveling wheels, wherein the power component transmits power to the driving axle through the transmission shaft; specifically, first, the power is transmitted from a driving bevel gear on the driving shaft of the main reducer to a driven bevel gear, so that the power is converted by 90 while the rotation speed is decreased and the torque is increased; then the power is transmitted to a differential housing, a cross axle, a planetary gear, semi-axle gears and semi-axles sequentially, and finally transmitted to the traveling wheels on the two sides via the two semi-axles, so as to drive the traveling wheels to run quickly along the track. At the same time, the driving axle is also convenient to drive the traveling wheels to run straightly or turn on the ground; when the travelling wheels on the two sides are subjected to different ground resistances, the planetary gear rotates (spins) around the axis of the cross axle while it orbits, so that the travelling wheels on the two sides rotate at different rotation speeds, and the differential gear plays a differential role, thus the entire apparatus can be driven conveniently to travel on different roads. In order to effectively transmit the torque, the two ends of the transmission shaft 9 are connected with the power component 10 and the driving axle 8 via a coupling11 respectively. The coupling 11 is a universal joint coupling. In a specific embodiment of the present invention, as shown in Fig. 1, the driving component is arranged inside the chassis 2, and the power component 10 is arranged at the bottom of the chassis 2. The driving component in this solution has the same structure as the driving device in the chassis of an excavator, and the driving component includes a low-speed high-torque hydraulic motor, a brake, and valve manifolds, etc. Since the required traveling speed is low during accumulated sand removal, the low-speed high-torque hydraulic motor drives the working wheels to rotate at a low speed, and thereby drives the working wheels to travel along the track at a low speed, thus meeting the requirement for slow travelling in the sand removal process. Since a driving device of excavator is provided at the bottom of the cab, a complete hydraulic system is available, and the power component 10 employs a hydraulic motor, which is electrically connected with the control console. The hydraulic system of the cab is used as the power source, and the hydraulic motor is driven via the control console to rotate, thereby the travelling wheels are driven to rotate quickly. Likewise, a hydraulic cylinder is employed for the lifting component 7, the hydraulic system of the cab is used as the power source, and the two ends of the hydraulic cylinder are rotatably connected with the chassis 2 and the driving axle 8 respectively. The chassis 2 is provided with a mounting base 12, the cylinder body of the hydraulic cylinder is rotatably connected with the mounting base 12, the driving axle 8 is provided with a connecting base 13, and the end of a piston rod of the hydraulic cylinder is rotatably connected with the connecting base 13. In a sand removal state, the piston rod of the hydraulic cylinder is retracted to lift the travelling wheels, and the working wheels • 3 • come into contact with the surface of the track and enter into a working state; during quick redeployment after sand removal, the piston rod of the hydraulic cylinder extends out, the travelling wheels are lowered and the working wheels are jacked up, so that the travelling wheels come into contact with the surface of the track and enters into a quick redeployment state. In summary, the apparatus provided by the present invention has the advantages of reliable structure, convenient maintenance and adjustable travelling speed, and utilizes a hydraulic motor and a transmission shaft to transmit the power to a driving axle, so that the travelling wheels can be driven to carry out quick redeployment conveniently; the working wheels are driven to rotate at a low speed by means of the driving component on the chassis, so that the accumulated sand can be removed conveniently and slowly along the track. The driver in the cab can control the working wheels and the travelling wheels to come into contact with the track alternately by controlling the hydraulic cylinder, so as to meet the requirements for sand removal at a low speed and quick redeployment; the sand is scooped up and dumped onto a conveyor belt by means of the sand collecting and discharging device, and then is discharged to the left side or right side of the track. With the apparatus provided by the present invention, it is unnecessary to remove the sand manually; instead, the worker can accomplish the sand removal work and redeployment task in the cab; thus the labor intensity of the workers is greatly decreased, the sand removal efficiency is improved, and the safety of operation of trains is ensured. While many details are described above to facilitate fully understanding of the present invention, the present invention can be implemented in other ways different from the way described herein, and those skilled in the art can make similar developments without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed above.

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Claims

1. A self-propelled vehicle for removing sand from track, comprising a cab, a traveling device and a sand collecting and discharging device, wherein a control console for controlling the traveling device and the sand collecting and discharging device is arranged in the cab, the sand collecting and discharging device is arranged in front of the cab, and the traveling device is arranged below the cab; the travelling device is arranged on a chassis at the bottom of the cab, and comprises travelling wheels, working wheels and driven wheels that are fitted with the track, the travelling wheels, the working wheels and the driven wheels are arranged on the chassis, the travelling wheels that travel at a high speed are driven by a power component, the working wheels that travel at a low speed are driven by a driving component, both the power component and the driving component are controlled by the control console, and the travelling wheels and the working wheels are fitted with the track alternately via a lifting component.

2. The self-propelled vehicle for removing sand from track according to claim 1, wherein two travelling wheels, two working wheels, and two driven wheels are provided respectively, the travelling wheels are arranged in front of the working wheels, and the driven wheels are arranged behind the working wheels; a driving axle is arranged between the two traveling wheels, the power component is connected with the driving axle via a transmission shaft, and the driving axle is connected with the chassis via the lifting component.

3. The self-propelled vehicle for removing sand from track according to claim 2, wherein the two ends of the transmission shaft are connected with the power component and the driving axle via a coupling respectively.

4. The self-propelled vehicle for removing sand from track according to claim 1, wherein the driving component is arranged in the chassis, and the power component is arranged on the bottom of the chassis.

5. The self-propelled vehicle for removing sand from track according to claim 1, wherein the power component is a hydraulic motor electrically connected with the control console.

6. The self-propelled vehicle for removing sand from track according to claim 2, wherein the lifting component is a hydraulic cylinder, the two ends of which are rotatably connected with the chassis and the driving axle respectively.

7. The self-propelled vehicle for removing sand from track according to claim 6, wherein the chassis is provided with a mounting base, the cylinder body of the hydraulic cylinder is rotatably connected with the mounting base, the driving axle is provided with a connecting base, and the end of a piston rod of the hydraulic cylinder is rotatably connected with the connecting base.