CN213061555U

CN213061555U - Flexible steel rail grinding device, steel rail grinding vehicle and milling and grinding vehicle

Info

Publication number: CN213061555U
Application number: CN202020632487.6U
Authority: CN
Inventors: 邝文建; 邝小桃
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-04-27
Anticipated expiration: 2030-04-23

Abstract

A flexible steel rail polishing device comprises an installation frame, a vertical plate, a support rod, a feeding mechanism, a polishing unit and a guide rail sliding block mechanism, wherein the feeding mechanism is connected with the guide rail sliding block mechanism; the guide rail sliding block mechanism comprises a sliding plate which is slidably arranged on the vertical plate, and the sliding plate is also provided with a plurality of polishing units; the polishing unit comprises a flexible polishing wheel, a driving device and a driving device attachment mechanism; the utility model provides a rail grinding wagon, includes the automobile body, and the automobile body front end is equipped with cab, intermediate position machinery and electrical apparatus room, rear end are equipped with dust collecting device, and machinery and electrical apparatus room below is provided with travel drive system and a plurality of flexible rail grinding device, a milling and grinding wagon has flexible rail grinding device on the milling and grinding wagon. The steel rail grinding device and the grinding wagon provided by the invention adopt the flexible grinding wheel, can control the angle of the grinding head and vertically feed, can automatically control the grinding amount, automatically compensate the abrasion of the cutter and grind the steel rail at various angles.

Description

Flexible steel rail grinding device, steel rail grinding vehicle and milling and grinding vehicle

Technical Field

The invention belongs to the technical field of rail grinding, and particularly relates to a flexible steel rail grinding device, a steel rail grinding vehicle and a milling and grinding vehicle.

Background

In recent years, rail transit has been rapidly developed, and the use of rails has been increasingly deteriorated with increasing speeds, heavy loads, and departure frequency. The surface of the steel rail is easy to generate fatigue crack, peeling, fat edge and other cross section defects and wave abrasion and other longitudinal section defects. The change of the steel rail profile and the smoothness have important influence on the driving safety, the comfort and the economy. Repairing rails to improve wheel-rail relationship, prolong rail service life, and improve economy and safety is a commonly used method at home and abroad. The steel rail repairing can be divided into steel rail polishing, steel rail planing, steel rail milling and grinding and the like according to the processing mode.

The steel rail grinding is divided into a plurality of types, the first common mode is swing grinding, as shown in fig. 1, a grinding motor or a hydraulic motor drives a disc-shaped grinding wheel to grind the end face, a long strip-shaped grinding mark along the longitudinal direction of the steel rail is formed on the processed surface, the cross section of the grinding mark is a straight line, a plurality of groups of grinding wheels are distributed at different angles to carry out floating grinding (control certain downward pressure) on the steel rail, and the grinding mark enveloped by the straight line is formed on the surface of the steel rail. The mode has higher processing efficiency, the number and the angle of the grinding heads can be freely combined, the processing of different profiles can be realized, and the grinding wagon products which are 2 to 96 grinding heads and are suitable for different working conditions can be realized. However, the corundum grinding wheel is mostly adopted in the mode, sparks generated by grinding splash everywhere, dust and particles falling off from the grinding wheel are low in collection efficiency, the working environment is large in dust, has fire hazard and high noise, and is not suitable for processing steel rails of lines such as subways and tunnels.

The second rail grinding mode is the high-speed grinding mode which is disclosed in the prior art, a plurality of groups of grinding wheels form a grinding unit, each grinding wheel is horizontal in axis, forms an acute angle included angle with the rail, does not have grinding power, and carries out passive grinding under the condition that a train is dragged. The polishing speed of the mode can reach 40km/h, but the removal amount of the polishing mode is small, generally cannot exceed 0.05mm, the contour repair cannot be carried out, the existing contour cannot be changed, the surface defect cannot be thoroughly removed, and the edge fat produced by the track gauge angle cannot be processed in a targeted manner.

Please refer to patent US4396323, the rail planing method is to install a rail profile planer tool on a self-running rail vehicle, and to plane the surface of the rail surface with the small drive of the train. The mode has low operation speed, lower processing efficiency, poor surface quality and fresh application.

The steel rail milling and grinding vehicle is used for processing a steel rail in a circumferential milling mode, and surface materials of the steel rail are removed through a plurality of groups of milling cutter discs in a forming milling mode, so that the defects of the steel rail are eliminated, and the smoothness is improved. The steel rail milling and grinding train has the advantages of large one-time milling depth, high efficiency, no spark, no dust and the like and good cleaning performance. However, the interrupted peripheral milling method causes residual waviness on the surface of the rail, limits the operating speed thereof, and reduces the surface roughness of the rail after machining. In order to improve the surface roughness, an additional grinding and polishing unit is required to be configured. The extra equipment configuration causes the whole vehicle to have large and complex structure and high cost. In addition, the milling mode cannot realize the processing with smaller cutting amount, and the material removal amount is too much, thereby causing the material waste.

Please refer to patent ZL201720857526.0, which discloses a forming device and a grinding wagon, wherein a hard particle high-efficiency cutter (a forming grinding wheel or a forming milling cutter) with a fixed profile is adopted to form a steel rail along the circumferential direction, so as to remove materials efficiently, the grinding tool does not fall off, the generated debris can be collected efficiently, the profile precision is high, the environment is clean, the removal amount can be freely adjusted from 0.05mm to 1mm, and the problems in the prior art are solved. However, this solution has problems in that the cutting amount is abruptly changed, the life is reduced due to burning of the cutter, the cost of the cutter is relatively high, and the working efficiency is limited. The cutter has high working speed and high noise. The scrap iron collection rate is high, but the heat is large, and the examination on a dust collecting device is large.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a steel rail grinding device which adopts a flexible grinding wheel, can control the angle of a grinding head and feed vertically, can automatically control the grinding amount and compensate the abrasion of a cutter, and a grinding wagon which is provided with the steel rail grinding device and can realize the grinding of the steel rail at various angles.

The purpose of the invention is realized by adopting the following technical scheme. The flexible steel rail polishing device comprises an installation frame arranged at the lower part of a steel rail polishing vehicle body, a vertical plate and a support rod fixedly connected with the installation frame, a feeding mechanism, a polishing unit and a guide rail sliding block mechanism, wherein the feeding mechanism comprises a cylinder, the top of the cylinder is arranged on the support rod, and the bottom of a piston rod of the cylinder is connected with the guide rail sliding block mechanism; the guide rail sliding block mechanism comprises a sliding plate which is slidably arranged on a vertical plate, polishing units are arranged on the sliding plate, the polishing units are provided with two installation modes, the first installation mode is that a plurality of polishing units are fixedly arranged on the sliding plate, the polishing units are freely combined at different angles, and a flexible polishing wheel on each polishing unit is wrapped at different angles to form the outline of the steel rail, so that the whole outline of the steel rail is polished; the second installation mode is that a polishing unit is installed on a polishing device in an adjustable mode, a rotating shaft is arranged on a sliding plate, a mounting bracket of the polishing unit is sleeved on the rotating shaft, a flexible polishing wheel, a driving device and a driving device attachment mechanism are further arranged on the mounting bracket, the polishing device further comprises a bracket driving component, one end of the bracket driving component is hinged with the mounting bracket, the other end of the bracket driving component is hinged with the sliding plate, and the bracket driving component can drive the polishing unit to rotate around the rotating shaft so that the flexible polishing wheel can polish steel rails at different angles.

Furthermore, the supporting plate driving component is an air cylinder, an oil cylinder, an electric push rod and the like.

Further, the flexible grinding device also comprises a dust collection assembly, wherein the dust inlet faces forwards to the grinding position of the steel rail so as to suck the iron chips generated by grinding.

Furthermore, the guide rail sliding block mechanism also comprises a guide rail arranged on the vertical plate and a sliding block matched with the guide rail, and the sliding block is fixedly connected with a sliding plate.

Furthermore, the driving mechanism is an electric motor or a hydraulic motor, and the auxiliary mechanism of the driving device of the transmission mechanism comprises a mounting bracket for mounting the driving mechanism and a grinding wheel protective cover which is mounted outside the flexible grinding wheel and used for protecting the flexible grinding wheel.

Further, the abrasive grains of the flexible grinding wheel include: corundum, diamond, cubic boron nitride, silicon carbide, hard alloy particles, titanium-tungsten composite carbide and the like.

Further, the milling and grinding vehicle is provided with a flexible steel rail grinding device, wherein the grinding device is used for polishing operation after milling and is arranged on the milling and grinding vehicle as a grinding unit of the milling and grinding vehicle.

The utility model provides a flexible rail car of polishing, includes the automobile body, and the automobile body front end is equipped with cab, intermediate position set up inside be equipped with for between machinery and the electrical apparatus that whole car provided power, the rear end be equipped with collection dirt subassembly intercommunication, collect grinding device produce the dust arrester of iron fillings when polishing the rail, be provided with the walking drive system and a plurality of grinding device who installs at the vehicle bottom, polish the rail through the mounting bracket between machinery and electrical apparatus below.

Furthermore, the vehicle body is also provided with a safety locking mechanism for preventing the grinding devices from falling to a low position and ensuring safety and an operation control system for controlling each grinding device to lift and accurately operate. By means of the technical scheme, the invention has the advantages that:

1. the flexible grinding wheel is adopted, materials are removed in a circumferential grinding (tangential grinding) mode, and compared with the traditional grinding mode, the spark direction can be controlled, the debris collection rate is high, and the operation is clean;

2. flexible grinding, self-adaptive profile adjustment, smooth transition of the profile, no grinding facet and tool receiving mark, and no residual ripple

3. The noise is low, and the steel rail can not be burnt;

4. the bidirectional processing can be realized, the operating efficiency and the operating precision are not reduced, and the bidirectional operating scrap iron can be efficiently collected;

5. the angle of the grinding wheel can be accurately controlled, and the steel rail is ground at a specific angle

6. The angle combination of the grinding heads is carried out, the whole outline of the steel rail can be ground through the control of a grinding mode, and the outline repair is realized;

7. compared with other forming grinding, the working speed is greatly improved.

8. The cost of the cutter is greatly reduced, the efficiency is improved, and the comprehensive operation cost is greatly reduced;

9. is particularly suitable for pre-polishing a new line;

10. can polish switch and tram cell type rail.

11. The defects of high noise, easy burning, low dust collection efficiency, low profile precision, large volume, high cost and the like of the traditional polishing are overcome.

12. The grinding device can be mounted on a milling and grinding vehicle for grinding and polishing after milling, and also can be independently assembled into a flexible grinding vehicle for carrying out flexible grinding operation on the steel rail, pre-grinding before opening a new line can be carried out, and the grinding device can be used for preventive grinding and repairable grinding of an operation line.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Figure 1 is a schematic view of a flexible rail grinding apparatus of the present invention grinding a rail tangentially,

figure 2 is a schematic structural diagram of a plurality of grinding units in the flexible steel rail grinding device for grinding the steel rail,

figure 3 is a schematic structural view of a flexible rail grinding device of the present invention,

figure 4 is a schematic structural view of a rail grinding wagon of the present invention,

figure 5 is a schematic view of an adjustable mounting arrangement for a grinding unit in a rail grinding apparatus according to the present invention.

[ reference numerals ]

1-mounting frame, 2-vertical plate, 3-feeding mechanism, 4-polishing unit, 5-highest position, 6-supporting rod, 7-guide rail slide block mechanism, 8-sliding plate, 9-flexible polishing wheel, 10-dust collecting component, 11-vehicle body, 12-driver cab, 13-mechanical and electrical equipment room, 14-dust collecting device, 15-walking driving system and 16-rotating shaft.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given of specific embodiments, structures, features and effects of a flexible rail grinding device, a rail grinding wagon and a rail milling wagon according to the present invention with reference to the accompanying drawings and preferred embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example 1:

referring to fig. 1 to 3, a flexible steel rail polishing device comprises an installation frame 1, a vertical plate 2, a feeding mechanism 3, a polishing unit 4 and a guide rail slider mechanism 7, wherein the top of the vertical plate 2 is fixedly connected with the installation frame 1, both of the vertical plate and the vertical plate are used for installing the whole polishing device on a vehicle body, the installation frame 1 is also fixedly connected with a support rod 6, and the support rod 6 is connected with the feeding mechanism 3; the feeding mechanism 3 comprises an air cylinder, the cylinder body of the air cylinder is hinged with the support rod 6, and the end part of the piston rod of the air cylinder is connected with the guide rail sliding block mechanism 7; guide rail slider mechanism 7 is including installing the guide rail on vertical board 2 and with guide rail complex slider, with the sliding plate 8 of slider rigid coupling, the piston rod and the sliding plate 8 rigid coupling of cylinder, sliding plate 8 and vertical board 2 sliding connection, still install polishing unit 4 on the sliding plate 8, the concertina movement of piston rod can drive polishing unit 4 on the sliding plate 8 along with the slider is the up-and-down motion of vertical side along the guide rail.

The polishing unit 4 comprises a flexible polishing wheel 9, a driving device and a driving device attachment mechanism, the driving device and the driving device attachment mechanism drive the flexible polishing wheel 9 to polish the steel rail along the tangential direction, the polishing unit 4 adopts the flexible polishing wheel 9, the spark direction can be controlled relative to the traditional polishing, and the debris collection rate is high; the flexible grinding can be self-adaptive to profile adjustment and smooth transition of the profile, small grinding planes and tool receiving marks cannot be generated, residual ripples cannot be generated, and in addition, the noise generated by the flexible grinding wheel during grinding is low, and the steel rail can not be burnt; the flexible grinding wheel 9 can be in various forms, such as a flexible polishing wheel, a grinding wheel formed by combining an abrasive belt and abrasive paper, a flexible pressurizing wheel wrapped by the abrasive belt, and a flexible grinding wheel coated with abrasive particles; the abrasive grains of the flexible grinding wheel include: one or more of corundum, diamond, cubic boron nitride, silicon carbide, hard alloy particles, titanium-tungsten composite carbide and the like are combined, so that the cost of the cutter is greatly reduced; the driving device comprises a power source and a transmission mechanism, wherein the power source is a motor or a hydraulic motor, and the transmission mechanism is a gear transmission mechanism or a belt wheel transmission mechanism or other existing transmission mechanisms; the driving device auxiliary mechanism comprises a mounting support and a grinding wheel protective cover, the mounting support is fixedly connected with the sliding plate 8, the driving device and the flexible grinding wheel are arranged on the mounting support, an output shaft of the motor or the hydraulic motor is connected with the transmission mechanism, an output shaft of the transmission mechanism is connected with the flexible grinding wheel 9, and the mounting support is further provided with the grinding wheel protective cover which is positioned outside the flexible grinding wheel 9 and used for protecting the flexible grinding wheel.

The flexible steel rail grinding device can be provided with a plurality of grinding units 4, each grinding unit 4 is fixedly installed, the grinding units 4 are freely combined, each grinding unit 4 is fixedly installed on a sliding plate 8 at different angles, the flexible grinding wheels 9 of each grinding unit 4 are at different angles, are mutually overlapped and are wrapped to be the profile of a steel rail, the whole profile of the steel rail can be ground, and the profile repair is realized;

referring to fig. 5, the polishing apparatus may also be provided with only one polishing unit 4, and the polishing unit 4 is adjustably installed, specifically: a rotating shaft 16 is arranged on the sliding plate 8, a mounting bracket of the polishing unit 4 is sleeved on the rotating shaft 16, and the flexible polishing wheel 9, the driving device and the accessory mechanism of the driving device are all arranged on the mounting bracket; the polishing device further comprises a support driving assembly, one end of the support driving assembly is hinged to the mounting support, the other end of the support driving assembly is hinged to the sliding plate 8, the support driving assembly can be an air cylinder, an oil cylinder, an electric push rod and the like, the mounting support drives the polishing unit 4 to rotate around the rotating shaft 16 under the pushing of the support driving assembly, and the flexible polishing wheel 9 is used for polishing steel rails at different angles.

The grinding device also comprises a dust collection assembly 10, and a scrap iron inlet of the dust collection assembly 10 faces forwards to a steel rail grinding position to suck and grind the generated scrap iron.

Example 2: referring to fig. 4, a rail grinding wagon comprising a plurality of flexible rail grinding devices is provided, the rail grinding wagon comprises a wagon body 11, the wagon body 11 comprises a cab 12 located at the front end of the wagon body 11, a mechanical and electrical equipment room 13 located in the middle of the wagon body, and a dust collecting device 14 located at the rear end of the wagon body; a power and transmission device is arranged in the mechanical and electrical appliance room 13 to provide power for the whole vehicle; two sides of the bottom of the vehicle body 11 are also provided with a walking driving system 15 for providing power for the vehicle body, and the whole vehicle is driven by the walking driving system 15 to realize constant pressure or constant load power feeding; a plurality of flexible steel rail grinding devices are arranged between two driving systems 15 positioned on the same side of the car body 11 to realize one-way processing or two-way processing, the grinding devices are arranged on the car body 11 through the mounting frame 1 and the vertical plate 2, scrap iron generated by the grinding units 4 is collected through the dust collecting component 5 and then is collected into the dust collecting device 14 on the car body 11, and a large amount of dust can be prevented from scattering on the operation site; still be provided with safe locking mechanism and operation control system on this automobile body 11, operation control system controls each grinding device and goes up and down and accurate operation, and safe locking mechanism is manual or cylinder driven bolt, prevents that grinding device from dropping to the low level, ensures safety. After the polishing operation is finished, the polishing device can be lifted to the highest position 5 through the feeding mechanism 3, and the polishing device is locked by the safety locking mechanism.

The grinding wagon can run automatically and can be transported by an automobile or a rail flat car, and the wagon body 11 is provided with a loading and unloading unit to realize automatic loading and unloading.

Example 3:

a milling and grinding vehicle is provided with the flexible steel rail grinding device in the embodiment 1, and the flexible steel rail grinding device is used as a grinding unit of the milling and grinding vehicle, is used for polishing operation after milling and is used for eliminating residual ripples.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.

Claims

1. The utility model provides a flexible rail grinding device, is including installing at rail grinding wagon automobile body lower part the mounting bracket, with vertical board and bracing piece, feed mechanism, the unit of polishing, guide rail slider mechanism of mounting bracket rigid coupling, its characterized in that: the feeding mechanism comprises an air cylinder, the top of the air cylinder is arranged on the supporting rod, and the bottom of a piston rod of the air cylinder is connected with the guide rail sliding block mechanism; the guide rail sliding block mechanism comprises a sliding plate which is slidably arranged on a vertical plate, polishing units are arranged on the sliding plate, the polishing units are provided with two installation modes, the first installation mode is that a plurality of polishing units are fixedly arranged on the sliding plate, the polishing units are freely combined at different angles, and a flexible polishing wheel on each polishing unit is wrapped at different angles to form the outline of the steel rail, so that the whole outline of the steel rail is polished; the second installation mode is that a polishing unit is installed on a polishing device in an adjustable mode, a rotating shaft is arranged on a sliding plate, a mounting bracket of the polishing unit is sleeved on the rotating shaft, a flexible polishing wheel, a driving device and a driving device attachment mechanism are further arranged on the mounting bracket, the polishing device further comprises a bracket driving component, one end of the bracket driving component is hinged with the mounting bracket, the other end of the bracket driving component is hinged with the sliding plate, and the bracket driving component can drive the polishing unit to rotate around the rotating shaft so that the flexible polishing wheel can polish steel rails at different angles.

2. A flexible rail grinding apparatus according to claim 1, wherein: the supporting plate driving component is a cylinder, an oil cylinder and an electric push rod.

3. A flexible rail grinding apparatus according to claim 1, wherein: the flexible grinding device also comprises a dust collection assembly, wherein the dust inlet faces forwards to the grinding position of the steel rail so as to suck and grind the generated iron chips.

4. A flexible rail grinding apparatus according to claim 1, wherein: the guide rail and sliding block mechanism also comprises a guide rail arranged on the vertical plate and a sliding block matched with the guide rail, and the sliding block is fixedly connected with a sliding plate.

5. A flexible rail grinding apparatus according to claim 1, wherein: the driving mechanism is an electric motor or a hydraulic motor, and the auxiliary mechanism of the driving device of the transmission mechanism comprises a mounting bracket for mounting the driving mechanism and a grinding wheel protective cover which is mounted outside the flexible grinding wheel and used for protecting the flexible grinding wheel.

6. The utility model provides a rail grinding wagon, includes the automobile body, and the automobile body front end is equipped with cab, intermediate position and sets up inside being equipped with for between machinery and the electrical apparatus that whole car provided power, the rear end be equipped with collection dirt subassembly intercommunication, collection grinding device produce the dust arrester of iron fillings when polishing the rail, its characterized in that: a walking driving system and a plurality of flexible steel rail grinding devices according to any one of claims 1 to 5 are arranged below the machinery and electrical appliance room, wherein the flexible steel rail grinding devices are arranged at the bottom of the train through mounting frames and are used for grinding the steel rails.

7. A rail grinding wagon according to claim 6, wherein: the car body is also provided with a safety locking mechanism for preventing the grinding devices from falling to a low position and ensuring safety and an operation control system for controlling each grinding device to lift and accurately operate.

8. The utility model provides a mill car which characterized in that: the milling and grinding vehicle is provided with a flexible steel rail grinding device according to any one of claims 1 to 5, and the flexible steel rail grinding device is used for polishing operation after milling and is arranged on the milling and grinding vehicle as a grinding unit of the milling and grinding vehicle.