CN216739088U - Track milling system and railway engineering vehicle - Google Patents
Track milling system and railway engineering vehicle Download PDFInfo
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- CN216739088U CN216739088U CN202122761514.7U CN202122761514U CN216739088U CN 216739088 U CN216739088 U CN 216739088U CN 202122761514 U CN202122761514 U CN 202122761514U CN 216739088 U CN216739088 U CN 216739088U
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Abstract
The embodiment of the application provides a track mills system and railway machineshop car, wherein, the track mills the system and includes: milling means for milling the surface of the rail; the front positioning and supporting device is arranged on the longitudinal front side of the milling device; the front positioning and supporting device is used for pressing a track on the front side of the milling device downwards; the longitudinal direction is the same as the extending direction of the track; the rear positioning and supporting device is arranged on the longitudinal rear side of the milling device; the rear positioning and supporting device is used for pressing the rail on the rear side of the milling device downwards. The rail milling system and the railway engineering vehicle provided by the embodiment of the application form double-point supports on the front side and the rear side of the milling device, the stability of the front point and the rear point of the rail is improved, the rail or the milling device is prevented from shaking, and the rail machining quality is improved.
Description
Technical Field
The application relates to a railway maintenance technology, in particular to a rail milling system and a railway engineering vehicle.
Background
In recent years, rail traffic in China develops rapidly, and the problem of rail surface damage begins to be more and more prominent along with the increase of transportation capacity and the improvement of running speed, wherein common damage comprises rail rolling contact fatigue cracks, corrugation and rail side grinding at the upper end of a curve. If the surface damage of the steel rail cannot be timely and effectively repaired, the driving safety and the service life of the steel rail are seriously influenced.
At present, the on-line steel rail finishing technology mainly comprises two technologies of steel rail grinding and steel rail milling. The prior steel rail online renovating device adopted by a milling and grinding vehicle or a rail milling vehicle is only provided with a set of positioning and supporting mechanisms at the front part of a milling cutter head. In practice, the online repairing device with only one set of positioning and supporting mechanism is easy to cause 'chatter cutter' when a track shock absorber and other damping fastener lines with smaller vertical static rigidity operate independently, namely the surface of the machined steel rail is milled into a 'wave' shape, and the machining quality is poorer.
Disclosure of Invention
In order to solve one of the technical defects, the embodiment of the application provides a rail milling system and a railway engineering vehicle.
According to a first aspect of embodiments of the present application, there is provided a rail milling system, comprising:
milling means for milling the surface of the rail;
the front positioning and supporting device is arranged on the longitudinal front side of the milling device; the front positioning and supporting device is used for pressing a track on the front side of the milling device downwards; the longitudinal direction is the same as the extending direction of the track;
the rear positioning and supporting device is arranged on the longitudinal rear side of the milling device; the rear positioning and supporting device is used for pressing the rail on the rear side of the milling device downwards.
The rail milling system as described above, the rear positioning support device comprising:
the base is arranged on the milling device;
a vertical drive mechanism comprising: a driving body and a driving member; the driving body is arranged on the base, and the driving piece can vertically move relative to the driving body;
the sliding shoe seat is arranged at the bottom end of the driving piece and moves synchronously with the driving piece;
the roller is rotatably arranged on the sliding shoe seat; the rotation center of the roller is vertical to the longitudinal direction.
According to the rail milling system, the sliding shoe base is connected with the driving piece in a rotating mode, and the rotating center of the sliding shoe base is perpendicular to the longitudinal direction.
The rail milling system as described above, the shoe base comprising: the top plate and vertical plates vertically arranged on two sides of the top plate; the top plate and the vertical plates on the two sides form a containing space for containing the roller; the roller is arranged in the accommodating space, and the bottom end of the roller is lower than that of the vertical plate;
the quantity of gyro wheel is at least two, along vertically setting gradually in accommodation space.
According to the track milling system, the bottom end of the driving piece is provided with two hinge plates extending along the vertical direction, the two hinge plates are parallel and opposite to each other, and a space capable of containing the sliding shoe seat is reserved between the two hinge plates; the top of the sliding shoe seat is provided with a connecting part, and the connecting part is provided with a through hole for the rotating shaft to pass through; two ends of the rotating shaft penetrate through hinge holes formed in the hinge plates; the outer side of the hinged plate is provided with a stop block which stops at the hinged hole.
The rail milling system as described above, the rear positioning support device further comprising:
the elastic adjusting assembly is arranged on the driving piece; one end of the elastic adjusting component is rotatably connected with the sliding shoe seat.
The rail milling system as described above, the resilient adjustment assembly comprising:
an adjusting rod extending in the vertical direction; the bottom end of the adjusting rod is rotatably connected with the sliding shoe seat;
an adjustment fixing member extending in a longitudinal direction, one end of which is fixed to the driving member; the end part of the adjusting fixing piece is provided with an adjusting through hole for the adjusting rod to pass through;
the first spring is sleeved on the adjusting rod and positioned above the adjusting fixing piece; the first spring is a linear spring, and the inner diameter of the first spring is larger than the aperture of the adjusting through hole;
the second spring is sleeved on the adjusting rod and positioned below the adjusting fixing piece; the second spring is a linear spring, and the inner diameter of the second spring is larger than the aperture of the adjusting through hole;
the first fixing nut is sleeved on the adjusting rod and positioned above the first spring;
the second fixing nut is sleeved on the adjusting rod and is positioned below the second spring.
The rail milling system as described above, the rear positioning support device further comprising:
the guide rail is arranged on the base along the vertical direction; the inside wall of driving piece is equipped with and can follows the gliding guide way of guide rail.
The rail milling system as described above, the front positioning support device comprising:
the positioning bracket is arranged on the milling device;
the driving motor is arranged on the positioning bracket, and an output shaft of the driving motor extends downwards along the vertical direction; the output shaft is provided with an external thread;
the driving nut is in threaded fit with an output shaft of the driving motor;
the pressure shoe is arranged at the bottom end of the driving nut; and the pressure shoe is provided with a roller.
According to a second aspect of an embodiment of the present application, there is provided a railway vehicle, comprising: the milling system is arranged at the bottom of the vehicle body.
According to the technical scheme, the front positioning and supporting device and the rear positioning and supporting device are arranged on the front side and the rear side of the milling device respectively, the front positioning and supporting device and the rear positioning and supporting device compress the tracks on the front side and the rear side of the milling device respectively, double-point support is formed on the front side and the rear side of the milling device, the stability of the front point and the rear point of the track is improved, the track or the milling device is prevented from shaking, and the track machining quality is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a rail milling system provided in an embodiment of the present application;
fig. 2 is a first schematic structural diagram of a rear support device in the rail milling system according to the embodiment of the present disclosure;
fig. 3 is a schematic structural diagram ii of a rear support device in the rail milling system according to the embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a rear supporting device of the rail milling system according to the embodiment of the present disclosure pressed on a rail;
fig. 5 is a schematic structural diagram of a front support device in the rail milling system according to an embodiment of the present application.
Reference numerals:
1-a milling device;
2-a front positioning device; 21-positioning the bracket; 22-a drive motor; 23-a drive nut; 24-a pressure shoe;
3-a rear positioning device; 31-a base; 32-a vertical drive mechanism; 321-a drive body; 322-a drive member; 33-a slipper block; 331-a top plate; 332-a riser; 3321-hinged plate; 3222-stop block; 34-a roller; 35-a guide rail; 361-an adjusting rod; 362-a first spring; 363-a second spring; 364-a first retaining nut; 365-a second securing nut; 366-adjusting the fixing piece;
4-track.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict.
In practical application, the online finishing device with only one set of positioning and supporting mechanism is found to easily cause 'chatter' when a damping fastener line with smaller vertical static rigidity, such as a track damper, works independently, namely the surface of a processed steel rail is milled into a 'wave' shape, and the processing quality is poorer. The main reason for the chatter cutter is that on a steel rail damping fastener line with low rigidity, a single set of positioning and supporting mechanism cannot well press a steel rail, so that the steel rail vibrates up and down during milling, and the chatter cutter is generated.
In order to solve the above problem, the embodiment of the application provides a rail milling system, which can overcome the problem of 'chatter knife', so that the rail machining quality is improved. The rail milling system can be arranged on a small milling vehicle or a large railway engineering vehicle. The present embodiment will explain the milling system in detail by taking the example of being installed on a railway engineering vehicle.
In the present embodiment, the track extending direction (i.e., the vehicle length direction) is referred to as the longitudinal direction, the track width direction (i.e., the vehicle width direction) is referred to as the lateral direction, and the vehicle height direction is referred to as the vertical direction or the vertical direction.
Fig. 1 is a schematic structural diagram of an orbit milling system according to an embodiment of the present application. As shown in fig. 1, the track milling system provided in this embodiment includes: the milling device 1, the front positioning and supporting device 2 and the rear positioning and supporting device 3.
The milling device 1 is arranged at the bottom of a vehicle body of the railway engineering vehicle and is used for milling the surface of a track below the milling device. The milling device 1 may comprise: driver, main shaft, axle box and milling cutter dish. The main shaft penetrates through the axle box, and a rolling bearing is arranged between the main shaft and the axle box. The main shaft is respectively connected with the driver and the milling cutter disc, and the driver directly drives the main shaft to rotate so as to drive the milling cutter disc to rotate. In the application process, the milling device 1 integrally moves downwards until the milling cutter disc is contacted with the track, and the milling cutter disc rotates to mill the track. And milling cutter discs are respectively arranged on the two transverse sides of the vehicle body so as to mill the two rails simultaneously.
The front positioning and supporting device 2 is arranged at the longitudinal front side of the milling device 1, and the front positioning and supporting device 2 is used for pressing a track at the front side of the milling device 1 downwards.
The rear positioning and supporting device 3 is arranged at the longitudinal rear side of the milling device 1, and the rear positioning and supporting device 3 is used for pressing a rail at the rear side of the milling device 1 downwards.
The front positioning and supporting device 2 and the rear positioning and supporting device 3 respectively press the tracks on the front side and the rear side of the milling device 1, double-point supports are formed on the front side and the rear side of the milling device 1, the stability of the front point and the rear point of the track is improved, the track or the milling device is prevented from shaking, and the processing quality of the track is improved.
On the basis of the above technical solution, the embodiment provides a specific implementation manner of the rear positioning and supporting device 3:
fig. 2 is a first structural schematic view of a rear support device in the rail milling system provided by the embodiment of the present application, fig. 3 is a second structural schematic view of the rear support device in the rail milling system provided by the embodiment of the present application, and fig. 4 is a structural schematic view of the rear support device in the rail milling system provided by the embodiment of the present application, which is pressed on a rail. As shown in fig. 2 to 4, the rear positioning support device 3 includes: base 31, vertical drive mechanism 32, shoe 33, and rollers 34.
The base 31 is disposed on the milling device 1, and may be disposed on an axle box of the milling device 1. The base 31 is a main body support structure that provides the connection interface for the various components. The base 31 is formed by welding a plurality of mounting plates, and the shape and structure of the base 31 are set according to the mounting position near the axle box 1, and a lightening hole is provided thereon.
The vertical drive mechanism 32 includes: a driving body 321 and a driving member 322. The driving body 321 is disposed on the base 31, and the driving member 322 can move vertically relative to the driving body 321.
The vertical drive 32 may be a hydraulic drive, a pneumatic drive, or an electric drive. In the present embodiment, the hydraulic driving mechanism is taken as an example, the driving body 321 is a hydraulic cylinder, and the outer casing thereof is fixed on the base 31. The output hydraulic rod of the hydraulic cylinder extends vertically downwards. The driving member 322 is a supporting structure and is connected to the bottom end of the hydraulic rod. The hydraulic stem is equipped with the external screw thread, and driving piece 322 is screw-thread fit with the hydraulic stem, and the hydraulic stem rotates, drives driving piece 322 and reciprocates.
Further, a vertically extending guide rail 35 is disposed on the base 31, and the inner sidewall of the driving member 322 is provided with a guide groove capable of sliding along the guide rail 35. The rotation of the driving member 322 is restricted by the cooperation of the guide rail 35 and the guide groove, and the rotational motion output by the hydraulic cylinder is converted into the linear motion of the driving member 322.
Other ways of limiting the rotation of the driver 332 may be used besides those described above. For example, a slide groove is provided in the base 31, and a slide rail or the like which can slide up and down in the slide groove is provided in correspondence to the driver 332.
The sliding shoe seat 33 is disposed at the bottom end of the driving member 322 and moves synchronously with the driving member 322. The roller 34 is rotatably disposed on the shoe base 33, and the center of rotation of the roller 34 is perpendicular to the longitudinal direction. The roller 34 is used for contacting with the surface of the track 4 and can roll on the track 4, so that the friction force is reduced, and the service life is prolonged.
The application process of the scheme is as follows: the driving member 332 is driven by the hydraulic cylinder to move downwards, so that the roller 34 on the sliding shoe 33 is pressed on the surface of the rail, and a vertical pressing force is applied to the rail. During the running process of the vehicle, rolling friction is generated between the roller 34 and the surface of the track, so that the vehicle is beneficial to running.
Further, the slipper block 33 is rotatably connected to the driving member 332, and the center of rotation of the slipper block 33 is perpendicular to the longitudinal direction. The sliding shoe 33 can rotate in a vertical plane relative to the driving member 332, and can adapt to uneven ground and the up-and-down slope trend of the track, so that all the rollers 34 on the sliding shoe 33 can be pressed on the surface of the track. For example: when the vehicle runs on a track with an uphill trend, the sliding shoe seat 33 rotates relative to the driving piece 332 at a certain angle, so that the front end of the sliding shoe seat 33 is lifted, and all the rollers 34 still press against the surface of the track.
A specific implementation manner is as follows: the shoe base 33 includes: the top plate 331 and the vertical plates 332 vertically arranged at two sides of the top plate 331, the top plate 331 and the vertical plates 332 at two sides enclose an accommodating space for accommodating the roller 34. The roller 34 is disposed in the accommodating space, and the bottom end of the roller 34 is lower than the bottom end of the vertical plate 332.
The top plate 311 is a rectangular plate whose long side is arranged in the longitudinal direction. The riser 332 is connected to the long side of the top plate 311, and the plate 311 and the riser 332 enclose an accommodation space whose lower end is open. The rollers 34 are at least two in number and are sequentially disposed in the accommodating space in the longitudinal direction. The bottom ends of the rollers 34 are lower than the bottom ends of the risers 332 to contact the rail 4.
Fig. 2 shows the sliding shoe 33 moving up to the stowed state, fig. 3 shows the sliding shoe 33 moving down to the working position, and fig. 4 shows the roller 34 contacting the surface of the rail 4.
Furthermore, two hinge plates 3221 extending in the vertical direction are disposed at the bottom end of the driving member 332, the two hinge plates 3221 are parallel and opposite to each other, and a space for accommodating the sliding shoe seat 33 is left between the two hinge plates 3221. The sliding shoe seat 33 is located in the space between the two hinge plates 3221, and a connecting portion is disposed at the top thereof, the connecting portion is provided with a through hole for the rotating shaft to pass through, and two ends of the rotating shaft are disposed through the hinge holes formed in the hinge plates 3221. The outer side of the hinge plate 3221 is provided with a stop block, and the stop block 3222 stops at the hinge hole to prevent the rotating shaft from falling out of the hinge hole.
Further, the rear positioning and supporting device 3 further includes: and the elastic adjusting component is arranged on the driving component 332, and one end of the elastic adjusting component is rotatably connected with the sliding shoe seat 33. The resilient adjustment assembly is used to urge the slipper 33 back to the initial position after the slipper 33 is rotated relative to the driver 332.
A specific implementation manner is as follows: the elastic adjustment assembly comprises: an adjustment rod 361, a first spring 362, a second spring 363, a first fixing nut 364, a second fixing nut 365, and an adjustment fixture 366.
The adjusting rod 361 extends vertically, and the bottom end thereof is rotatably connected to the shoe base 33. Specifically, an adjustment fixture 366 is employed that extends in a longitudinal direction and has one end secured to the drive member 322. The other end of the adjusting fixing member 336 is provided with an adjusting through hole for the adjusting rod 361 to pass through. The adjusting rod 361 passes through the adjusting through hole, and the bottom end of the adjusting rod is rotatably connected with the sliding shoe base 33.
The first spring 362 is sleeved on the adjusting rod 361 and located above the adjusting fastener 366. The first spring 362 is a linear spring, and the inner diameter of the first spring 362 is larger than the aperture of the adjusting through hole. The first fixing nut 364 is sleeved on the adjusting rod 361 and located above the first spring 362. The first fixing nut 364 is threadedly engaged with the adjusting rod 361 for limiting the first spring 362 between the first fixing nut 364 and the adjusting fixture 366.
The second spring 363 is sleeved on the adjusting rod 361 and located below the adjusting fastener 366. The second spring 363 is a linear spring, and the inner diameter of the second spring 363 is larger than the aperture of the adjusting through hole. The second fixing nut 365 is sleeved on the adjusting rod and located below the second spring 363. The second fixing nut 365 is in threaded engagement with the adjustment rod 361 for limiting the second spring 363 between the second fixing nut 365 and the adjustment fixture 366.
When the shoe 33 is rotated clockwise by the rail pressure and the left end swings upward as shown in fig. 2, the adjusting rod 361 is pushed to move upward, and the second spring 363 is compressed. When the rail pressure disappears, the adjusting rod 361 is moved downwards under the action of the resilience of the second spring 363, and the left end of the shoe 33 is pushed to swing downwards to press the rail surface.
When the shoe 33 is rotated counterclockwise by the rail pressure and the left end swings downward, the left end drives the adjusting rod 361 to move downward, compressing the first spring 362. When the rail pressure disappears, the adjusting rod 361 is moved upward by the resilience of the first spring 362, and the left end of the shoe 33 is pushed to swing upward and the right end is pushed to swing downward to press the rail surface.
Adopt above-mentioned elasticity adjustment assembly to make the gyro wheel in the skid shoe seat 33 press all the time and cover in the track surface, can adapt to unevenness's road condition, also can compress tightly the track and then improve track processingquality on unevenness's road.
The embodiment further provides a specific implementation manner of the front positioning and supporting device 2:
fig. 5 is a schematic structural diagram of a front support device in the rail milling system according to an embodiment of the present application. As shown in fig. 5, the front positioning support device 2 includes: positioning bracket 21, drive motor 22, drive nut 23 and pressure shoe 24.
The positioning bracket 21 is disposed on the milling device 1, and may be disposed on an axle box. The driving motor 22 is arranged on the positioning support 21, an output shaft of the driving motor 22 extends downwards along the vertical direction, and the output shaft is provided with external threads. The drive nut 23 is screw-fitted to the output shaft of the drive motor. The pressure shoe 24 is arranged at the bottom end of the driving nut 23, and the pressure shoe 24 is provided with a roller.
The drive nut 23 is provided with a slide groove for cooperation with a slide rail on the milling device. The rotation torque of the driving motor 22 is converted into the vertical up-and-down movement of the driving nut 23, which drives the pressure shoe 24 to move up and down.
In the use process, the pressure shoe 24 is driven by the driving motor 22 to move downwards to press on the track on the front side of the milling device 1, then the sliding shoe seat 33 in the rear positioning and supporting device is driven to move downwards to press on the track on the rear side of the milling device 1, and then the milling cutter disc in the milling device is driven to rotate to mill the track.
In the milling process, the vertical position of the milling device 1 is adjusted through the front positioning support device 2, and the milling depth is adjusted. For example: the front positioning and supporting device 2 drives the pressure shoe 24 to move downwards, the pressure shoe 24 is tightly pressed against the track, and the positioning bracket 21 moves upwards relatively, so that the axle box of the milling device 1 moves upwards together with the positioning bracket 21, the milling cutter disc moves upwards, and the milling depth is reduced.
The milling system provided by the present embodiment may be used to form railroad rails of standard rail profiles (50kg/m, 60kg/m, etc. or other rail profiles). The front positioning and supporting device and the rear positioning and supporting device move independently, and the tracks are pressed from the front side and the rear side of the milling device, so that the stability of the tracks is ensured.
The embodiment also provides a railway machineshop car, includes: the vehicle body and the milling system provided in any one of the above aspects, the milling system is arranged at the bottom of the vehicle body. The railway engineering vehicle provided by the embodiment has the same technical effect as the milling system.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "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 merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An orbital milling system comprising:
milling means for milling the surface of the rail;
the front positioning and supporting device is arranged on the longitudinal front side of the milling device; the front positioning and supporting device is used for pressing a track on the front side of the milling device downwards; the longitudinal direction is the same as the extending direction of the track;
the rear positioning and supporting device is arranged on the longitudinal rear side of the milling device; the rear positioning and supporting device is used for pressing the rail on the rear side of the milling device downwards.
2. The orbital milling system of claim 1, wherein the rear positioning support comprises:
the base is arranged on the milling device;
a vertical drive mechanism comprising: a driving body and a driving member; the driving body is arranged on the base, and the driving piece can vertically move relative to the driving body;
the sliding shoe seat is arranged at the bottom end of the driving piece and moves synchronously with the driving piece;
the roller is rotatably arranged on the sliding shoe seat; the rotation center of the roller is vertical to the longitudinal direction.
3. The orbital milling system of claim 2 wherein the slipper is rotationally coupled to the drive member, the center of rotation of the slipper being perpendicular to the longitudinal direction.
4. The orbital milling system of claim 3 wherein the slipper shoe comprises: the top plate and vertical plates vertically arranged on two sides of the top plate; the top plate and the vertical plates on the two sides form a containing space for containing the roller; the roller is arranged in the accommodating space, and the bottom end of the roller is lower than that of the vertical plate;
the quantity of gyro wheel is at least two, along vertically setting gradually in accommodation space.
5. The rail milling system of claim 4 wherein the bottom end of the driving member is provided with two hinged plates extending in a vertical direction, the two hinged plates are parallel and opposite to each other, and a space for accommodating the sliding shoe is left between the two hinged plates; the top of the sliding shoe seat is provided with a connecting part, and the connecting part is provided with a through hole for the rotating shaft to pass through; two ends of the rotating shaft penetrate through hinge holes formed in the hinge plates; the outer side of the hinged plate is provided with a stop block which stops at the hinged hole.
6. The rail milling system of claim 3, 4 or 5, wherein the rear positioning support further comprises:
the elastic adjusting assembly is arranged on the driving piece; one end of the elastic adjusting component is rotatably connected with the sliding shoe seat.
7. The orbital milling system of claim 6 wherein the resilient adjustment assembly comprises:
an adjusting rod extending in the vertical direction; the bottom end of the adjusting rod is rotatably connected with the sliding shoe seat;
an adjustment fixing member extending in a longitudinal direction, one end of which is fixed to the driving member; the end part of the adjusting fixing piece is provided with an adjusting through hole for the adjusting rod to pass through;
the first spring is sleeved on the adjusting rod and positioned above the adjusting fixing piece; the first spring is a linear spring, and the inner diameter of the first spring is larger than the aperture of the adjusting through hole;
the second spring is sleeved on the adjusting rod and positioned below the adjusting fixing piece; the second spring is a linear spring, and the inner diameter of the second spring is larger than the aperture of the adjusting through hole;
the first fixing nut is sleeved on the adjusting rod and positioned above the first spring;
the second fixing nut is sleeved on the adjusting rod and is positioned below the second spring.
8. The orbital milling system of claim 2, wherein the rear positioning support further comprises:
the guide rail is arranged on the base along the vertical direction; the inside wall of driving piece is equipped with and can follows the gliding guide way of guide rail.
9. The orbital milling system of claim 1, wherein the forward positioning support comprises:
the positioning bracket is arranged on the milling device;
the driving motor is arranged on the positioning bracket, and an output shaft of the driving motor extends downwards along the vertical direction; the output shaft is provided with an external thread;
the driving nut is in threaded fit with an output shaft of the driving motor;
the pressure shoe is arranged at the bottom end of the driving nut; and the pressure shoe is provided with a roller.
10. A railroad work vehicle, comprising: the vehicle body and the milling system of any one of claims 1-9, said milling system being arranged at the bottom of the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122761514.7U CN216739088U (en) | 2021-11-11 | 2021-11-11 | Track milling system and railway engineering vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122761514.7U CN216739088U (en) | 2021-11-11 | 2021-11-11 | Track milling system and railway engineering vehicle |
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| CN216739088U true CN216739088U (en) | 2022-06-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981759A (en) * | 2021-11-11 | 2022-01-28 | 中国铁建高新装备股份有限公司 | Track milling system and railway engineering vehicle |
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2021
- 2021-11-11 CN CN202122761514.7U patent/CN216739088U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981759A (en) * | 2021-11-11 | 2022-01-28 | 中国铁建高新装备股份有限公司 | Track milling system and railway engineering vehicle |
| CN113981759B (en) * | 2021-11-11 | 2024-08-16 | 中国铁建高新装备股份有限公司 | Track milling system and railway engineering vehicle |
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