CN217058772U

CN217058772U - A slide rail formula profile appearance for rail top of rail

Info

Publication number: CN217058772U
Application number: CN202220854160.2U
Authority: CN
Inventors: 王文玺; 杨文明; 张雷; 杨洋
Original assignee: Shandong Dingtaisheng Transportation Technology Co ltd
Current assignee: Shandong Dingtaisheng Transportation Technology Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-26
Anticipated expiration: 2032-04-13

Abstract

The invention discloses a slide rail type profile instrument for a steel rail top, and mainly relates to the field of steel rail profile measurement. Comprises a fixing assembly which is configured to be detachably fixed with a steel rail; the measuring assembly is configured for measuring the curved surface of the rail top; the measuring assembly comprises a profile adjusting frame and a measuring component, wherein a basic profile ruler is arranged on the bottom side of the profile adjusting frame, the side edge of the bottom side of the basic profile ruler is a measuring edge corresponding to a theoretical profile surface, a sliding frame is connected onto the profile adjusting frame in a sliding mode, the sliding track line of the sliding frame is a curve extending along the measuring edge at equal intervals, and the measuring component is fixed onto the sliding frame; and the adjusting assembly is fixedly arranged on the fixing assembly and is configured for realizing position adjustment of the measuring assembly based on the vertical plane in the double-axis direction. The invention has the beneficial effects that: the high-precision measurement device can realize high-precision measurement of the steel rail running surface.

Description

A slide rail formula profile appearance for rail top of rail

Technical Field

The invention relates to the field of steel rail measurement, in particular to a sliding rail type profile instrument for a steel rail top.

Background

In the production, operation and maintenance of the steel rail, the curved surface at the upper part of the rail top is a steel rail running surface which plays a key role in matching application, and the parameters of the rail top surface of the steel rail need to be kept in high attention and maintenance.

The existing measuring instrument is generally a customized profile ruler, when in use, the measuring result is greatly influenced by an operation method, and the measuring precision cannot be ensured.

Disclosure of Invention

The invention aims to provide a sliding rail type profile instrument for a steel rail top, which can realize high-precision measurement of a steel rail running surface.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a slide-rail profiler for a rail head comprising:

the fixing assembly is configured to be detachably fixed with the steel rail;

the measuring assembly is configured for measuring the curved surface of the rail top;

the measuring assembly comprises a profile adjusting frame and a measuring component, wherein a basic profile ruler is arranged on the bottom side of the profile adjusting frame, the side edge of the bottom side of the basic profile ruler is a measuring edge corresponding to a theoretical profile surface, a sliding frame is connected onto the profile adjusting frame in a sliding manner, the sliding track line of the sliding frame is a curve extending along the measuring edge at equal intervals, and the measuring component is fixed onto the sliding frame;

and the adjusting assembly is fixedly arranged on the fixing assembly and is configured to realize position adjustment of the measuring assembly based on the vertical plane in the double-axis direction.

And the outer side end face of the basic profile ruler is provided with profile angle position scales. The profile angle position scales are distributed along the measuring edge and correspond to the grinding position.

The measuring assembly comprises any one of a pen-shaped laser distance meter, a dial indicator, an LVDT distance meter and a dial indicator.

The top side of profile alignment jig is equipped with the profile rack that extends with measurement limit equidistance, the bilateral symmetry of profile rack is equipped with the track strip of fixing on the profile alignment jig, the track strip is equipped with the track face on the top side, the track strip is equipped with down the track face in the bottom side, rotatable the installing on the carriage has the positioning gear who meshes with the profile rack mutually, positioning gear's bilateral symmetry be equipped with the carriage rotate the last track wheel of installation, the rotatable track wheel of installing down in bottom of carriage, go up track wheel and last track face cooperation, track wheel and lower track face cooperation down.

The top of carriage is fixed with even axle, the bottom of carriage is fixed with down even axle, it is coaxial with positioning gear and last rail wheel to go up even axle, it is coaxial with lower rail wheel to link the axle down, be equipped with the hole of stepping down on the profile alignment jig, link the axle down and run through and make its front end expose in the place ahead of profile alignment jig from the hole of stepping down, the place ahead of profile alignment jig is equipped with the mounting bracket, on link the axle to fix the top at the mounting bracket, link the axle to fix the bottom at the mounting bracket down, the bottom of mounting bracket is equipped with the holder, be equipped with the centre gripping position on the holder, the centre gripping position is used for fixed measuring component.

The fixing assembly comprises a magnetic base, the magnetic base and the steel rail are fixed in an adsorption mode based on controllable magnetic attraction, and the magnetic base is used for installing, fixing and adjusting the assembly.

The adjusting assembly comprises a transverse adjusting mechanism and a lifting adjusting mechanism,

the lifting adjusting mechanism comprises a vertical plate fixed on the fixing assembly, a lifting track is fixed on the vertical plate, a lifting slide block is vertically matched with the lifting track in a sliding manner, and the lifting slide block can be locked relative to the lifting track;

the lifting adjusting mechanism comprises a fixed block fixed on the lifting sliding block, a sliding groove capable of being horizontally matched with the fixed block in a sliding mode from left to right is formed in the fixed block, and the profile adjusting frame is fixed on the sliding groove.

The lifting track is provided with a linear rack on the upright end face of one side adjacent to the lifting slider, an installation cavity is arranged in the lifting slider, a lifting gear is rotatably installed in the installation cavity, an adjusting knob coaxially fixed with the lifting gear is rotatably connected to the outer portion of the lifting slider, a screw rod is connected to the outer portion of the lifting slider in a threaded mode, the inner end of the screw rod is tightly matched with the lifting track in a propping mode, and a fastening knob is fixed to the outer end of the screw rod.

The top surface of fixed block is equipped with transverse position mark line, be equipped with the counterpoint scale on the terminal surface of the top side of sliding tray, transverse position mark line and counterpoint scale cooperate the use, counterpoint scale realizes the increase and decrease of length data along the length direction of sliding tray, counterpoint scale mark includes zero scale mark, the both sides of zero scale mark are equipped with positive number scale mark and negative number scale mark respectively.

Compared with the prior art, the invention has the beneficial effects that:

1. the instrument is fixed with the steel rail through the fixing assembly, so that clamping is stable, and shaking caused by manual operation and non-correspondence of positions for multiple measurement and comparison are avoided;

2. continuous measurement of the profile difference of the continuous polishing angle position can be realized along the profile;

3. under keeping the basic function that traditional profile chi judged the rail top wearing and tearing condition fast based on the vision, combine the ripe high accuracy measuring tool of range finding subassembly, realize that the high accuracy of rail volume of polishing obtains fast, it is more accurate to use the limited sieve chi of profile chi cooperation combination to carry out the measurement of profile difference than prior art.

Drawings

FIG. 1 is a schematic of the present invention.

Fig. 2 is a schematic diagram of the present invention.

Fig. 3 is a top view of the present invention.

FIG. 4 is a schematic view of a measurement assembly of the present invention.

FIG. 5 is a schematic view of a measurement assembly of the present invention.

Figure 6 is a schematic view of the profile adjustment bracket and carriage of the present invention.

FIG. 7 is a schematic view of the fixing assembly and the adjustment assembly of the present invention.

FIG. 8 is a schematic view of the fixing assembly and the adjustment assembly of the present invention.

Fig. 9 is a schematic illustration of the present invention in use.

Fig. 10 is a front view of the present invention in use.

The reference numbers shown in the figures:

1. a profile adjusting bracket; 2. a dial indicator; 3. a base profile ruler; 4. the angle position scale of the profile; 5. a profile rack; 6. a track bar; 7. an upper rail wheel; 8. a lower rail wheel; 9. positioning a gear; 10. an upper connecting shaft; 11. a lower connecting shaft; 12. a hole for abdication; 13. a mounting frame; 14. a carriage; 15. a clamping member; 16. a clamping position; 17. a magnetic base; 18. magnetic attraction surfaces; 19. a handle switch; 20. a fixed seat; 21. a vertical plate; 22. a lifting rail; 23. a linear rack; 24. a lifting slide block; 25. adjusting a knob; 26. fastening a knob; 27. a fixed block; 28. a sliding groove; 29. a lateral position marking line; 30. and aligning scales.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention can be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope defined by the present application.

The instruments, reagents, materials and the like used in the following examples are conventional instruments, reagents, materials and the like in the prior art and are commercially available in a normal manner unless otherwise specified. Unless otherwise specified, the experimental methods, detection methods, and the like described in the following examples are conventional experimental methods, detection methods, and the like in the prior art.

Example (b): a slide rail formula profile appearance for rail top of rail

As shown in fig. 1-10, this example was used to measure the rail head (i.e. rail running surface) of a GB60 rail with a national standard of 60 kg/m.

The steel rail also has corresponding industrial standards, specifically TBT 2344-201243 kg-75 kg m steel rail ordering technical conditions (TB/T2344-2012), the upper curved surface of the rail top is a steel rail running surface, which plays a key role in matching application, and the curved surface shape and size have careful requirements according to strict requirements, such as rail head width, rail top fullness, symmetry, curvature, inclination angle, distance between each site and the like. Meanwhile, in the standard, there is a standard "theoretical profile" defined for the running surface of the rail based on the specifications of the above size and shape "

Its major structure includes:

1) the measuring assembly is configured for measuring the curved surface of the rail top;

the device mainly comprises a profile adjusting frame 1 and a dial indicator 2;

the bottom side of the profile adjusting frame is provided with a basic profile ruler 3, the side edge of the bottom side of the basic profile ruler is a measuring edge, and the measuring edge corresponds to the theoretical profile surface.

And the outer side end face of the basic profile ruler 3 is provided with visual profile angle position scales 4. The profile angle position scales 4 are distributed along the measuring edge. And the length of each scribed line of the profile angular position scale 4 corresponds to the normal of the theoretical profile plane.

The top side of the profile adjusting frame 1 is provided with a profile rack 5 which extends at equal distance from the measuring edge, and the normal line of the profile rule strip is always in the same direction with the normal line of the theoretical profile surface.

The profile rack 5 is symmetrically provided with track strips 6 fixed on the profile adjusting frame 1 at two sides, the track strips 6 are provided with upper track surfaces at the top sides, the track strips 6 are provided with lower track surfaces at the bottom sides, the upper track surfaces are in an inverted V shape protruding upwards, the lower track surfaces are in an inverted V shape protruding downwards, and the upper track surfaces and the lower track surfaces extend at equal intervals relative to the measuring sides respectively. The guide and the constraint of the sliding trajectory line traveling strictly according to the theoretical profile are realized. Meanwhile, based on the constraint structure of the upper and lower double-layer track surfaces, the precision and the stability of stroke constraint are improved. The travel of the sliding frame 14 on the profile adjusting frame 1 is consistent with the height of the curved surface of the theoretical profile surface, so that the direction of the pointer of the dial indicator is always along the normal line of the standard profile.

Sliding fit has carriage 14 on profile alignment jig 1, rotatable the installing of top of carriage 14 has positioning gear 9, positioning gear 9 meshes with profile rack 5 mutually, positioning gear 9's bilateral symmetry be equipped with carriage 14 rotation installation last rail wheel 7, the rotatable track wheel 8 of installing in bottom of carriage 14, it is located the top of track face to go up rail wheel 7, it suits with last rail face cooperation to go up rail wheel 7, rail wheel 8 is located the below of track face down, rail wheel 8 uses with the cooperation of track face down to the realization is to the spacing restraint of 14 strokes of carriage.

An upper connecting shaft 10 is fixed at the top of the sliding frame 14, a lower connecting shaft 11 is fixed at the bottom of the sliding frame 14, the upper connecting shaft 10 is coaxial with the positioning gear 9 and the upper track wheel 7, and the lower connecting shaft 11 is coaxial with the lower track wheel 8. The profile adjusting frame 1 is provided with a yielding hole 12, and the lower connecting shaft 11 penetrates through the yielding hole 12 and the front end of the lower connecting shaft is exposed in front of the profile adjusting frame 1.

The distance from the upper connecting shaft center to the lower connecting shaft center is actually equal to the radius of the upper connecting shaft center, the distance between the upper track and the lower track and the radius of the lower connecting shaft center, so that when the toggle 9 slides on the rack by taking the normal between the two parallel curves as the shortest distance, the 13 is always perpendicular to the upper track and the lower track, and the measured degrees are in the direction of the scale mark on the corresponding profile ruler.

The place ahead of profile alignment jig 1 is equipped with mounting bracket 13, go up even axle 10 and fix on the top of mounting bracket 13, even axle 11 is fixed in the bottom of mounting bracket 13 down, the length direction and the measuring side of mounting bracket 13 are perpendicular, the bottom of mounting bracket 13 is equipped with holder 15, holder 15 is prior art's staple bolt structure holder 15, and it does not limit to this example and also can use other holder 15. And a clamping position 16 is arranged on the clamping piece 15, and the axis of the clamping position 16 is consistent with the normal of the theoretical profile surface. The clamping position 16 is used for fixing the dial indicator 2, the dial indicator 2 is detachably mounted on the profile adjusting frame 1 based on the structure, the curve stroke along the theoretical profile surface is realized through the profile adjusting frame 1, and the normal line of the dial indicator 2 can be always kept corresponding to the normal line of the measuring edge in the stroke process.

Based on this example, holder 15 includes relative first hoop board and the second hoop board that sets up, the one side that mounting bracket 13 was kept away from to first hoop board and second hoop board is fixed through bolt-up, the opposite side of first hoop board and second hoop board is equipped with the arc wall, the arc wall constitutes centre gripping position 16, and the axis of arc wall is unanimous with the normal on measuring the limit.

Based on the structure, the pointer of the dial indicator 2 and the movement of the dial indicator 2 can correspond to the height of the theoretical profile surface. The distance from each polishing angle (within a resolution ratio) to the actual rail profile can be measured through a dial indicator, the polishing amount of each polishing position can be determined through simple conversion, and the measurement precision can reach +/-0.002 mm.

2) The fixing assembly is configured for realizing detachable fixing with the steel rail, so that the profile ruler can be well fixed on the steel rail in measurement, and the profile ruler corresponds to the steel rail through fine adjustment, thereby realizing stable measurement and improving the measurement precision;

based on the characteristic of rail, select the quick detach fixed subassembly that can fix fast and be convenient for operate, magnetic force seat 17 is chooseed for use to this example, one side of magnetic force seat 17 is equipped with the magnetism face of inhaling 18 that suits with the top of a rail both sides chin, magnetism face of inhaling 18 is for suiting with the dog-ear curved surface of chin, magnetic force seat 17 is the magnetic force seat 17 that prior art was commonly used, and its lectotype does not influence fixed effect and the function with the rail. The magnetic attraction surface 18 is in a V shape matched with the positioning surface, the magnetic base 17 is matched with a handle switch 19 for controlling the magnetism of the magnetic attraction surface 18, and the handle switch 19 controls the rotation of a magnetic block in the magnetic base 17, so that the magnetic attraction surface 18 has magnetism or loses magnetism.

The top of the magnetic base 17 is provided with a fixed base 20, and the fixed base 20 is provided with a screw groove for installation and used for fixedly installing and adjusting the assembly.

3) The adjusting assembly is fixedly arranged on the fixing assembly and is configured for realizing position adjustment of the measuring assembly in the double-axis direction based on a vertical surface;

specifically, the adjusting assembly comprises a transverse adjusting mechanism and a lifting adjusting mechanism,

the lift adjustment mechanism includes: the vertical plate 21, the lifting track 22, the lifting slider 24, the lifting gear, the adjusting knob 25 and the fastening knob 26;

the vertical plate 21 is of an inverted T-shaped structure, the bottom of the vertical plate 21 is fixedly mounted on the fixed base 20 through a bolt, the whole lifting adjusting mechanism is supported, the lifting rail 22 extends vertically, the lifting rail 22 is fixed on the vertical plate 21, the lifting slider 24 is connected with the lifting rail 22 in a vertical sliding manner, a linear rack 23 is arranged on the vertical end face of one side of the lifting rail 22 adjacent to the lifting slider 24, a mounting cavity is arranged in the lifting slider 24, the lifting gear is rotatably mounted in the mounting cavity, the lifting gear is meshed with the linear rack 23 to control the lifting of the lifting slider 24, the adjusting knob 25 is rotatably connected with the lifting slider 24, the adjusting knob 25 is circumferentially fixed with the lifting gear, a screw is arranged at one end of the fastening knob 26 adjacent to the lifting slider 24, and a screw hole for the fastening knob to penetrate through is arranged on the side wall of the mounting cavity, the screw rod is in threaded fit with the screw hole, penetrates through the side wall of the installation cavity from the screw hole, and is tightly propped against the lifting rail 22 at the inner end of the screw rod, so that the lifting slide block 24 is fixedly locked.

The lateral adjustment mechanism includes: a fixed block; 27. a slide groove 28;

the fixed block; one side of 27 is fixedly arranged on the lifting slide block 24;

the fixed block; 27, a horizontally extending convex strip sliding block, the sliding groove 28 and the fixed block are arranged on the end surface of one side, far away from the lifting sliding block 24; 27 adjacent one side is provided with a sliding chute which is connected with the convex strip sliding block in a left-right sliding way; thereby achieving a snug fit of the two.

The fixed block; the top surface of 27 is provided with a transverse position marking line 29,

be equipped with counterpoint scale 30 on the top side terminal surface of sliding tray 28, counterpoint scale 30 realizes the increase and decrease of length data along sliding tray 28's length direction, counterpoint scale 30 line includes zero scale mark, the both sides of zero scale mark are equipped with positive number scale mark and negative number scale mark respectively.

The transverse position mark lines 29 cooperate with alignment marks 30.

The profile adjusting frame 1 is fixed in the sliding groove 28 and is far away from the fixed block; 27 on one side end face.

Through the adjusting mechanism, after the magnetic base 17 is fixed on one side of the rail top in an adsorbing mode, the height and the left and right positions are finely adjusted through the lifting adjusting mechanism and the transverse adjusting mechanism, so that the measuring edge can correspondingly fall on the running surface of the steel rail to be measured. Positioning and aligning are well carried out on the measurement. When in specific application, the method comprises the following steps:

the fixing of the magnetic base relative to the rail top is realized by operating the handle switch;

the foundation profile ruler is finely adjusted through the adjusting assembly, so that the measuring edge of the foundation profile ruler is perpendicular to the surface of the rail top, namely, the foundation profile ruler is in vertical contact with the rail top; the measuring edge at the lower part of the profile ruler is the profile (without abrasion and deformation) of the standard rail top of the steel rail with the corresponding model of the detected steel rail.

After the profile gauge is contacted with the detected rail surface, inserting the micrometer gauge and fixing the position of the micrometer gauge (in one profile height measurement of each angle, the clamping position of the micrometer gauge is kept unchanged), obtaining the numerical value displayed on the micrometer gauge under each angle position, namely the height relative value of the gap between the profile gauge and the rail at each angle position, and recording the numerical value as d _n Wherein the subscript "n" represents angular position.

The obtained degree includes d ₂₀ 、d ₁₀ 、d ₀ 、d _-5 And the polishing amount D at each position can be calculated by the following formula _{Angle of rotation} 。

D _{Angle of rotation} ＝d _{Angle of rotation} -max[d ₂₀ 、d ₁₀ 、d ₀ 、d _-5 ...]-a tolerance band (D) _{Angle of rotation} >0)

The tolerance band corresponds to a detection error value of the profile after grinding in a high-speed railway steel rail grinding management method (Total iron transport [2014] 357), or a required steel rail profile error value set manually.

Claims

1. A slide-rail profiler for a rail head, comprising:

the fixing assembly is configured to be detachably fixed with the steel rail;

the measuring assembly comprises a profile adjusting frame and a measuring component, wherein a basic profile ruler is arranged on the bottom side of the profile adjusting frame, the side edge of the bottom side of the basic profile ruler is a measuring edge corresponding to a theoretical profile surface, a sliding frame is connected onto the profile adjusting frame in a sliding mode, the sliding track line of the sliding frame is a curve extending along the measuring edge at equal intervals, and the measuring component is fixed onto the sliding frame;

2. The slide rail type profile gauge for the rail top of the steel rail according to claim 1, wherein the outer side end face of the basic profile ruler is provided with profile angle position scales, the profile angle position scales are distributed along the measuring edge, and the profile angle position scales correspond to the grinding position.

3. A sliding rail profiler for a rail head according to claim 1, wherein the measuring assembly comprises any one of a pen laser rangefinder, a dial gauge, an LVDT rangefinder, a dial gauge.

4. The slide rail type profiler for a steel rail top as set forth in claim 1, wherein the top side of the profile adjusting frame is provided with a profile rack extending equidistantly from the measuring edge, the profile rack is bilaterally symmetrical to each other and provided with a rail strip fixed to the profile adjusting frame, the rail strip is provided with an upper rail surface at the top side, the rail strip is provided with a lower rail surface at the bottom side, the carriage is rotatably provided with a positioning gear engaged with the profile rack, the positioning gear is bilaterally symmetrical to each other and provided with an upper rail wheel rotatably mounted to the carriage, the bottom of the carriage is rotatably provided with a lower rail wheel, the upper rail wheel is engaged with the upper rail surface, and the lower rail wheel is engaged with the lower rail surface.

5. The slide rail type profile instrument for the rail top of the steel rail according to claim 4, wherein the top of the sliding frame is fixed with an upper connecting shaft, the bottom of the sliding frame is fixed with a lower connecting shaft, the upper connecting shaft is coaxial with the positioning gear and the upper rail wheel, the lower connecting shaft is coaxial with the lower rail wheel, the profile adjusting frame is provided with a abdicating hole, the lower connecting shaft penetrates through the abdicating hole and exposes the front end of the lower connecting shaft in the front of the profile adjusting frame, the front of the profile adjusting frame is provided with the mounting frame, the upper connecting shaft is fixed at the top end of the mounting frame, the lower connecting shaft is fixed at the bottom end of the mounting frame, the bottom end of the mounting frame is provided with the clamping piece, the clamping position is arranged on the clamping piece, and the clamping position is used for fixing the measuring component.

6. The slide rail profiler as claimed in claim 1, wherein the fixing assembly includes a magnetic base for attracting and fixing the rail, and the magnetic base is provided with a fixing and adjusting assembly.

7. The slide-rail profiler as set forth in claim 1, wherein said adjustment assembly includes a lateral adjustment mechanism and a lift adjustment mechanism,

8. The slide rail type profiler for a steel rail top according to claim 7, wherein a linear rack is arranged on the vertical end surface of one side of the lifting rail adjacent to the lifting slider, a mounting cavity is arranged in the lifting slider, a lifting gear is rotatably arranged in the mounting cavity, an adjusting knob coaxially fixed with the lifting gear is rotatably connected to the outside of the lifting slider, a screw rod is connected to the outside of the lifting slider through a thread, the inner end of the screw rod is tightly matched with the lifting rail top, and a fastening knob is fixed to the outer end of the screw rod.

9. The slide rail type profiler for a steel rail top according to claim 7, wherein the top surface of the fixed block is provided with a transverse position mark line, the top end surface of the sliding groove is provided with an alignment scale, the transverse position mark line is used in cooperation with the alignment scale, the alignment scale realizes the increase and decrease of length data along the length direction of the sliding groove, the alignment scale line comprises a zero scale line, and both sides of the zero scale line are respectively provided with a positive scale line and a negative scale line.