CN111411549A - Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism - Google Patents

Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism Download PDF

Info

Publication number
CN111411549A
CN111411549A CN202010048513.5A CN202010048513A CN111411549A CN 111411549 A CN111411549 A CN 111411549A CN 202010048513 A CN202010048513 A CN 202010048513A CN 111411549 A CN111411549 A CN 111411549A
Authority
CN
China
Prior art keywords
worm
enveloping
ring surface
planar double
rail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010048513.5A
Other languages
Chinese (zh)
Inventor
王磊
韩双平
徐春涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRCC High Tech Equipment Corp Ltd
Original Assignee
CRCC High Tech Equipment Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CRCC High Tech Equipment Corp Ltd filed Critical CRCC High Tech Equipment Corp Ltd
Priority to CN202010048513.5A priority Critical patent/CN111411549A/en
Publication of CN111411549A publication Critical patent/CN111411549A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/13—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by milling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Gear Transmission (AREA)

Abstract

The invention relates to a steel rail online renovation device with a plane secondary enveloping ring surface worm speed reducing mechanism, which comprises a driving motor (1), a main shaft box body (5) and a substrate (9), wherein the main shaft box body (5) is connected with the substrate (9) through a positioning sliding shoe (6), a main shaft (7) and a plane secondary enveloping ring surface worm transmission pair are arranged in the main shaft box body (5), the plane secondary enveloping ring surface worm transmission pair comprises a plane secondary enveloping ring surface worm (4) and a worm wheel (8), the plane secondary enveloping ring surface worm (4) is positioned below the worm wheel (8) and is meshed with the worm wheel, the plane secondary enveloping ring surface worm (4) is connected with the driving motor (1), the worm wheel (8) is connected with the main shaft (7), and one end of the main shaft (7) is provided with a circumferential milling disc (3). The invention realizes the online renovation of the steel rail by the planar secondary enveloping ring surface worm transmission pair, and has the technical characteristics of compact structure, large speed ratio, high efficiency, small volume, light weight and stable operation.

Description

Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism
Technical Field
The invention relates to railway maintenance equipment, in particular to a steel rail online repairing device with a planar secondary enveloping ring surface worm speed reducing mechanism.
Background
In recent years, subway rail traffic in China develops rapidly, and the problem of surface damage of steel rails begins to be more and more prominent along with increase of transportation capacity and improvement of running speed, wherein common damage comprises rolling contact fatigue cracks of the steel rails, corrugation and side grinding of the steel rails at the upper ends of curves. 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 existing steel rail on-line renovation device configured by a milling and grinding vehicle or a rail milling vehicle mainly adopts a mode of driving a circumferential milling cutter disc by a motor, and the rotation speed of the motor is higher, so that the speed of the motor must be reduced and then the milling cutter disc is driven to rotate. The speed reducing mechanism adopted by the existing steel rail online repairing device is mainly a speed reducing mode combining belt transmission and gear transmission, wherein the gear transmission adopts one-stage or two-stage gear reduction, so that the technical defects that the speed reducing mechanism is complex, the occupied size of a speed reducing box body is overlarge, and compact layout cannot be realized exist.
The utility model discloses a plane secondary enveloping ring surface worm transmission of valve is vice that the plane secondary enveloping ring surface worm transmission of valve is vice, including engaged with worm wheel and worm, the worm has at least three teeth of a cogwheel, the worm teeth of a cogwheel contain a central teeth of a cogwheel, and the worm teeth of a cogwheel are the range that uses this central teeth of a cogwheel as the center and increase the tooth height gradually along with keeping away from the central teeth of a cogwheel, and the pitch arc that the tooth top of the worm teeth of a cogwheel formed and the pitch arc that the tooth root of worm teeth formed coincide each other, and the pitch arc that the tooth top of the worm teeth of a cogwheel formed, the pitch arc that the tooth root of the worm teeth of a cogwheel formed and the pitch arc that the tooth top of worm wheel tooth formed all are the concentric circles that use the worm wheel center as the centre of a circle.
Disclosure of Invention
The invention provides a steel rail online renovating device with a plane secondary enveloping ring surface worm speed reducing mechanism, which is used for completing steel rail online renovating operation, realizing the technical effects of eliminating steel rail surface diseases and recovering the standard profile of a rail head, and aims to solve the technical defects that a reducing mechanism of the existing steel rail online renovating device is complex, a reducing box body occupies too large volume and cannot realize compact layout, and the technical defects of a plane secondary enveloping ring surface worm transmission pair of the existing valve.
The invention sets the following steps: the direction parallel to the steel rail is longitudinal, the direction vertical to the steel rail is transverse, and the gravity direction is vertical; one side of the operation direction of the mobile subway steel rail on-line milling vehicle is right, and the other side is left.
The first preferred technical scheme adopted by the invention is as follows:
the steel rail online renovation device with the plane secondary enveloping ring surface worm speed reducing mechanism comprises a driving motor, a spindle box body and a base plate, wherein the spindle box body is connected with the base plate through a positioning sliding shoe, a spindle and a plane secondary enveloping ring surface worm transmission pair are arranged in the spindle box body, the plane secondary enveloping ring surface worm transmission pair comprises a plane secondary enveloping ring surface worm and a turbine, the plane secondary enveloping ring surface worm is positioned below the turbine and meshed with the turbine, the plane secondary enveloping ring surface worm is connected with the driving motor, the turbine is connected with the spindle, and one end of the spindle is provided with a circumferential milling disc.
Preferably, the driving motor is installed above the main spindle box, a driving shaft direction of the driving motor is parallel to the planar secondary enveloping toroidal worm, and the planar secondary enveloping toroidal worm is connected with the driving motor through a synchronous belt. Thereby effectively utilizing space and leading the structure to be more compact.
In any of the above schemes, the rail milling machine frame is preferably provided with a base, and the base plate is mounted on the base. The base plate can slide on the base transversely or vertically to realize the positioning of the circumferential milling disc on the steel rail.
In any of the above embodiments, the diameter of the circumferential milling disc is preferably 900mm to 1600 mm.
In any of the above embodiments, it is preferable that the circumferential milling disc is replaced with a circumferential stone disc.
In any of the above solutions, it is preferable that the planar double-enveloping toroidal worm gear pair adopts a general type of transmission form.
In any of the above solutions, it is preferable that the planar double-enveloping toroidal worm gear pair adopts a typical transmission form.
In any of the above schemes, preferably, the planar double-enveloping toroidal worm transmission pair adopts a nine-head planar double-enveloping toroidal worm transmission pair.
In any of the above schemes, the plane double enveloping ring surface worm tooth surface is preferably manufactured by precise grinding after hardening treatment.
In any of the above aspects, it is preferable that the flat double enveloping worm comprises at least three teeth.
The second preferred technical scheme adopted by the invention is as follows:
the steel rail online renovation device with the plane secondary enveloping ring surface worm speed reducing mechanism comprises a driving motor, a spindle box body and a base plate, wherein the spindle box body is connected with the base plate through a positioning sliding shoe, a spindle and a plane secondary enveloping ring surface worm transmission pair are arranged in the spindle box body, the plane secondary enveloping ring surface worm transmission pair comprises a plane secondary enveloping ring surface worm and a turbine, the plane secondary enveloping ring surface worm is positioned below the turbine and meshed with the turbine, the plane secondary enveloping ring surface worm is connected with the driving motor, the turbine is connected with the spindle, and one end of the spindle is provided with a circumferential milling disc.
Preferably, the driving motor is directly mounted at one end of the planar double-enveloping toroidal worm through a flat key or a spline. Thereby effectively utilizing space and leading the structure to be more compact.
In any of the above schemes, the rail milling machine frame is preferably provided with a base, and the base plate is mounted on the base. The base plate can slide on the base transversely or vertically to realize the positioning of the circumferential milling disc on the steel rail.
In any of the above embodiments, the diameter of the circumferential milling disc is preferably 900mm to 1600 mm.
In any of the above embodiments, it is preferable that the circumferential milling disc is replaced with a circumferential stone disc.
In any of the above solutions, it is preferable that the planar double-enveloping toroidal worm gear pair adopts a general type of transmission form.
In any of the above solutions, it is preferable that the planar double-enveloping toroidal worm gear pair adopts a typical transmission form.
In any of the above schemes, preferably, the planar double-enveloping toroidal worm transmission pair adopts a nine-head planar double-enveloping toroidal worm transmission pair.
In any of the above schemes, the plane double enveloping ring surface worm tooth surface is preferably manufactured by precise grinding after hardening treatment.
In any of the above aspects, it is preferable that the flat double enveloping worm comprises at least three teeth.
Compared with the prior art, the invention has the beneficial effects that: the steel rail online repairing device with the plane secondary enveloping ring surface worm speed reducing mechanism is arranged to replace the existing speed reducing mechanism combining belt transmission and gear transmission, so that the steel rail online repairing device is more compact in structure, and is convenient for arrangement of a milling cutter disc with a larger diameter.
Drawings
Fig. 1 is a perspective view showing the general structure of a preferred embodiment of the steel rail online truing device with a planar double-enveloping toroidal worm speed reducing mechanism according to the present invention.
Fig. 2 is a schematic structural diagram of a steel rail online trimming device with a planar double-enveloping toroidal worm speed reducing mechanism, which is arranged on a rail milling vehicle frame according to a preferred embodiment of the invention.
Fig. 3 is a schematic diagram of the steel rail online truing device with the planar double-enveloping toroidal worm speed reducing mechanism according to a preferred embodiment of the present invention for truing the steel rail.
Figure 4 is a perspective view of a preferred embodiment of the double enveloping toroidal worm reduction mechanism in an in-line rail truing apparatus having a planar double enveloping toroidal worm reduction mechanism in accordance with the present invention.
Description of reference numerals:
1 driving a motor; 2, synchronous belts; 3, circumferentially milling a disc; 4 plane secondary enveloping ring surface worm; 5, a main shaft box body; 6, positioning a sliding shoe; 7, a main shaft; 8, a turbine; 9 a substrate; 10 milling a rail car frame; 11 a base; 12 steel rails; 13 sleepers.
Detailed Description
The following describes in detail a preferred technical solution of the steel rail online truing device with a planar double enveloping toroidal worm speed reducing mechanism with reference to fig. 1 to 4:
example 1:
the steel rail online renovation device with the plane secondary enveloping ring surface worm speed reducing mechanism comprises a driving motor 1, a main shaft box 5 and a base plate 9, wherein the main shaft box 5 is connected with the base plate 9 through a positioning sliding shoe 6, a main shaft 7 and a plane secondary enveloping ring surface worm transmission pair are arranged in the main shaft box 5, the plane secondary enveloping ring surface worm transmission pair comprises a plane secondary enveloping ring surface worm 4 and a worm wheel 8, the plane secondary enveloping ring surface worm 4 is positioned below the worm wheel 8 and meshed with the worm wheel 8, the plane secondary enveloping ring surface worm 4 is connected with the driving motor 1, the worm wheel 8 is connected with the main shaft 7, and a circumferential milling disc 3 is arranged at one end of the main shaft 7.
The base plate 9 can slide on the base 11 transversely or vertically to realize the positioning of the circumferential milling disc 3 on the steel rail 12;
the driving motor 1 is installed above the spindle box body 5, the driving shaft direction of the driving motor 1 is parallel to the plane secondary enveloping ring surface worm 4, and the plane secondary enveloping ring surface worm 4 is connected with the driving motor 1 through the synchronous belt 2. Thereby effectively utilizing space and leading the structure to be more compact.
The rail milling machine comprises a rail milling machine frame 10, wherein a base 11 is arranged on the rail milling machine frame 10, and a base plate 9 is arranged on the base 11.
The circumferential milling disc 3 preferably has a diameter size of 900mm to 1600 mm.
The circumferential milling disc 3 is replaced by a circumferential stone disc.
The planar secondary enveloping ring surface worm transmission pair can select any one of a general transmission form, a typical transmission form and a nine-head planar secondary enveloping ring surface worm transmission pair.
The tooth surface of the plane secondary enveloping ring surface worm 4 is precisely ground after hardening treatment. The planar double enveloping toroidal worm 4 comprises at least three teeth.
The working principle of the embodiment is as follows: a driving motor 1 drives a plane secondary enveloping ring surface worm 4 to rotate through a synchronous belt 2, the plane secondary enveloping ring surface worm 4 drives a turbine 8 to rotate, the turbine 8 drives a main shaft 7 to rotate, the main shaft 7 drives a circumference milling disc 3 to rotate, and the steel rail 12 can be refitted after the circumference milling disc 3 rotates.
Example 2:
the steel rail online renovation device with the plane secondary enveloping ring surface worm speed reducing mechanism comprises a driving motor 1, a main shaft box 5 and a base plate 9, wherein the main shaft box 5 is connected with the base plate 9 through a positioning sliding shoe 6, a main shaft 7 and a plane secondary enveloping ring surface worm transmission pair are arranged in the main shaft box 5, the plane secondary enveloping ring surface worm transmission pair comprises a plane secondary enveloping ring surface worm 4 and a worm wheel 8, the plane secondary enveloping ring surface worm 4 is positioned below the worm wheel 8 and meshed with the worm wheel 8, the plane secondary enveloping ring surface worm 4 is connected with the driving motor 1, the worm wheel 8 is connected with the main shaft 7, and a circumferential milling disc 3 is arranged at one end of the main shaft 7.
The base plate 9 can slide on the base 11 transversely or vertically to realize the positioning of the circumferential milling disc 3 on the steel rail 12;
the driving motor 1 is directly installed at one end of the planar double-enveloping ring surface worm 4 through a flat key or a spline. Thereby effectively utilizing space and leading the structure to be more compact.
The rail milling machine comprises a rail milling machine frame 10, wherein a base 11 is arranged on the rail milling machine frame 10, and a base plate 9 is arranged on the base 11.
The circumferential milling disc 3 preferably has a diameter size of 900mm to 1600 mm.
The circumferential milling disc 3 is replaced by a circumferential stone disc.
The planar secondary enveloping ring surface worm transmission pair can select any one of a general transmission form, a typical transmission form and a nine-head planar secondary enveloping ring surface worm transmission pair.
The tooth surface of the plane secondary enveloping ring surface worm 4 is precisely ground after hardening treatment. The planar double enveloping toroidal worm 4 comprises at least three teeth.
The working principle of the embodiment is as follows: the driving motor 1 drives the planar secondary enveloping ring surface worm 4 to rotate through a flat key or a spline, the planar secondary enveloping ring surface worm 4 drives the turbine 8 to rotate, the turbine 8 drives the main shaft 7 to rotate, the main shaft 7 drives the circumferential milling disc 3 to rotate, and the steel rail 12 can be renovated after the circumferential milling disc 3 rotates.
The steel rail online repairing device with the planar secondary enveloping ring surface worm speed reducing mechanism is arranged to replace the prior speed reducing mechanism combining belt transmission and gear transmission, so that the steel rail online repairing device has a more compact structure, is convenient for arranging a milling cutter head with a larger diameter, can fully utilize the technical advantages of large speed ratio, high efficiency, small volume, light weight, stable operation and the like of the planar secondary enveloping ring surface worm transmission pair, is used for completing the steel rail online repairing operation, realizes the technical effects of eliminating the surface defects of the steel rail 12 and recovering the standard profile of a rail head.
The above embodiments are merely preferred embodiments, wherein the components and the connection relations involved are not limited to the above described embodiments, and the arrangement and the connection relations of the components in the preferred embodiments may be arbitrarily arranged and combined to form a complete technical solution.

Claims (10)

1. The steel rail online renovation device with the plane secondary enveloping ring surface worm speed reducing mechanism comprises a driving motor (1), a main shaft box body (5) and a base plate (9), wherein the main shaft box body (5) is connected with the base plate (9) through a positioning sliding shoe (6), and is characterized in that a main shaft (7) and a plane secondary enveloping ring surface worm transmission pair are arranged in the main shaft box body (5), the plane secondary enveloping ring surface worm transmission pair comprises a plane secondary enveloping ring surface worm (4) and a worm wheel (8), the plane secondary enveloping ring surface worm (4) is positioned below the worm wheel (8) and is meshed with the worm wheel, the plane secondary enveloping ring surface worm (4) is connected with the driving motor (1), the worm wheel (8) is connected with the main shaft (7), and a circumferential milling disc (3) is arranged at one end of the main shaft (7).
2. A rail on-line truing device with a planar double-enveloping toroidal worm speed reducing mechanism as claimed in claim 1, characterized in that the driving motor (1) is installed above the main shaft box (5), and the driving shaft direction of the driving motor (1) is parallel to the planar double-enveloping toroidal worm (4), and the planar double-enveloping toroidal worm (4) is connected with the driving motor (1) through the synchronous belt (2).
3. A rail on-line truing apparatus having a planar double-enveloping toroidal worm speed-reducing mechanism as claimed in claim 1, wherein the driving motor (1) is directly mounted on one end of the planar double-enveloping toroidal worm (4) by flat key or spline.
4. A rail on-line truing apparatus having a planar double-enveloping toroidal worm reduction mechanism as claimed in claim 1, comprising a rail milling carriage (10), wherein the rail milling carriage (10) is provided with a base (11), and the base plate (9) is mounted on the base (11).
5. A rail on-line truing apparatus having a planar double-enveloping toroidal worm reduction mechanism as claimed in claim 1, wherein the diameter dimension of the circumferential milling disc (3) is 900mm to 1600 mm.
6. A rail on-line truing apparatus having a planar double-enveloping toroidal worm reduction mechanism as claimed in claim 1 wherein the circumferential milling disc (3) is replaced by a circumferential stone disc.
7. A rail on-line truing apparatus having a planar double-enveloping toroidal worm reduction mechanism as claimed in claim 1 wherein said planar double-enveloping toroidal worm drive pair is of the general type.
8. A rail on-line truing apparatus having a planar double-enveloping toroidal worm reduction mechanism as claimed in claim 1 wherein said planar double-enveloping toroidal worm drive pair is of a typical drive type.
9. A rail on-line truing apparatus having a planar double-enveloping toroidal worm reduction mechanism as claimed in claim 1 wherein said planar double-enveloping toroidal worm gear pair is a nine-start planar double-enveloping toroidal worm gear pair.
10. A rail on-line truing apparatus having a planar double-enveloping toroidal worm reduction mechanism as claimed in claim 1 wherein the tooth flanks of the planar double-enveloping toroidal worm (4) are precision ground after hardening.
CN202010048513.5A 2020-01-16 2020-01-16 Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism Pending CN111411549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010048513.5A CN111411549A (en) 2020-01-16 2020-01-16 Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010048513.5A CN111411549A (en) 2020-01-16 2020-01-16 Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism

Publications (1)

Publication Number Publication Date
CN111411549A true CN111411549A (en) 2020-07-14

Family

ID=71488980

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010048513.5A Pending CN111411549A (en) 2020-01-16 2020-01-16 Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism

Country Status (1)

Country Link
CN (1) CN111411549A (en)

Similar Documents

Publication Publication Date Title
US8408105B2 (en) Portable profiler for locomotive or railcar wheels
WO2016101322A1 (en) Steel rail polishing device and steel rail milling and grinding vehicle
US8789448B2 (en) System for and method of re-profiling locomotive and rail car wheels
US11801559B2 (en) Portable profiler for locomotive or railcar wheels
US9358650B2 (en) System for and method of re-profiling locomotive and rail car wheels
CN114753198B (en) Water jet steel rail edge finishing grinding system and method based on track gauge measurement
US20240189914A1 (en) System and method of re-profiling locomotive railcar wheels
CN107030575A (en) A kind of automatic processing system
US10226824B2 (en) Portable profiler for locomotive or railcar wheels
CN111101408A (en) Steel rail online milling device capable of adjusting angle of milling head
CN212270551U (en) Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism
CN111411549A (en) Steel rail online renovation device with plane secondary enveloping ring surface worm speed reducing mechanism
CN204780491U (en) Portable rail mills finish milling device of car
CN110644304B (en) Liftable and multi-angle rail device of polishing
CN204325828U (en) A kind of orbital sander
CN101199945A (en) Vertical roll grinder
CN104404846A (en) Rail grinding machine
CN110130166A (en) A kind of walking rail polishing operation system certainly based on rail traffic operation
CN212822955U (en) Train wheel grinding device
CN207017088U (en) A kind of rail fat-edges sander
CN113909335B (en) Stress-relief high-speed rail train set manufactured vehicle body leveling device
CN211772467U (en) Multidirectional adjusting mechanism of rail side profile grinding wagon
CN217953461U (en) Steel surface flatness detection device for building steel detection
CN212223479U (en) Electric profiling rail grinding machine for rail transit
CN211547120U (en) Steel rail online milling device capable of adjusting angle of milling head

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination