CN201579417U - Rail-type wheel lathe capable of simultaneously machining a plurality of wheel groups - Google Patents
Rail-type wheel lathe capable of simultaneously machining a plurality of wheel groups Download PDFInfo
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- CN201579417U CN201579417U CN2009200138711U CN200920013871U CN201579417U CN 201579417 U CN201579417 U CN 201579417U CN 2009200138711 U CN2009200138711 U CN 2009200138711U CN 200920013871 U CN200920013871 U CN 200920013871U CN 201579417 U CN201579417 U CN 201579417U
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- lathe
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Abstract
A rail-type wheel lathe capable of simultaneously machining a plurality of wheel groups relates to a machining lathe, which is mainly formed by a main transmission system, a hydraulic system and cutter saddle systems. The lathe is characterized in that the hydraulic system, the main transmission system and the cutter saddle systems are all disposed on a planar lathe body which is a basic structure component of the lathe, a to-be-machined vehicle wheel is drawn to a planar lathe body position from steel rails, the main transmission system includes a motor, a belt pulley and a universal shaft component, the hydraulic system includes a hydraulic station, an oil pipeline, a hydraulic shaft box bearing centering device, and each wheel-pair cutter saddle system group is composed of two cutter saddle groups. The lathe can machine a plurality of wheel pair groups simultaneously, and can evidently increase machining efficiency and increase geometrical size difference among wheel pairs on a same lathe body (or a same bogie) due to the fact that the wheel pairs are arranged on a same machining reference platform.
Description
Technical field
The utility model relates to a kind of machining tool, particularly relates to a kind of employing at the lathe of rail mode to the processing of many groups rail vehicles wheel.
Background technology
Existing rail vehicles wheel lathe for machining has two kinds of patterns.
First kind is the horizontal car wheel lathe of traditional mode.To take turns during maintenance disassembling, will take turns hanging on the lathe, carry out the wheel tread profiling with crane.In that locomotive is big or middle when repairing, this traditional car wheel lathe is suitable, because big or middle repairing by scope, technology must be pulled down maintenance to (two-wheeled) with wheel, and when medium-capital overhauling, particularly during overhaul general wheel to reaching or near the forbidding limit, wheel must be changed wheel hub or wheel shank to not continuing to use in one the phase of repairing, and must process to meet relevant technical regulation requirement tread after the replacing.This lathe relatively is typically Poland and produces UBB series.
But in the rolling stock operation process, flat sliding, wheel rim usually take place to situations such as limits.In this case, still wheel is got off to carry out the processing of tread reparation property to disassembling, workload big (the back work amount is more much bigger than the main workload of wheel tread processing), rolling stock holding time are long, and locomotive said, the trial run owing to need to reach the standard grade after the dismounting of traveling portion also will take transport resource and bring interference for the railway transportation order.
Second kind is " not falling to taking turns car wheel lathe ".In order to improve the processing operating efficiency, in the rolling stock operation process, flat sliding, wheel rim take place to the situation of keeping in repair such as limit temporarily, people have developed second kind of car wheel lathe, promptly " do not fall to taking turns car wheel lathe ".This lathe working method is that lathe is placed melt pit (so also being called the melt pit car wheel lathe) under the railway rail, during operation with the locomotive of processing object or vehicle towed to lathe, mode by movable rail, with the wheel under rail remove, make wheel to rotating with outer power simultaneously, finish the machining of wheel tread.Thisly do not fall to taking turns car wheel lathe and compare with first kind of horizontal car wheel lathe, no longer disassemble wheel, efficient is significantly improved.But since by movable rail mode need to rail transform and during operation the rolling stock launching cradle on lathe, be to guarantee job safety, its each work system, parts design are heavy and complicated, cost height not only, maintenance maintenance requires high.This lathe relatively is typically CKA8000 series.
Second kind of pattern " do not fall to taking turns car wheel lathe ", and there is defective in wheel to the rotating drive mode.Do not fall to taking turns car wheel lathe and adopt the friction pulley mode, that is: after movable rail is removed, at wheel the bottom is contacted with wheel tread by four friction pulleys of hydraulic control (every group of wheel is to each two of both sides) rise, drive motor drives friction pulley by belt pulley, reduction box and rotates, by friction pulley and wheel to the frictional force driven wheel of a generation to rotation.Since friction pulley and wheel between contact-making surface be exactly the scope of operation that wheel tread is processed, certainly will impact machining accuracy, carrying out along with processing, contact-making surface changes, cause easily friction pulley and the wheel between skid, destroy the balance of the cutting moment of torque and frictional drive moment of torsion, and influence machining accuracy.
More than two kinds of car wheel lathes can only carry out the processing that wheel is right at every turn, efficient is low.Though second kind the car wheel lathe working (machining) efficiency that do not fall increases, because every group of wheel all adjustment again of benchmark to adding man-hour, the wheel of same locomotive is bigger to the error after processing.
Present homemade underfloor wheels lathe is by the left and right layout of identical two parts, and only top " opening " is " U " type to left and right lathe bed by the tie-beam of bottom is continuous, causes the integral rigidity deficiency of lathe.And left and right knife rest separates the design, manufacturing, assembling and the geometric accuracy that cause lathe and detects the science that all lacks, unification, perfect benchmark, also is unfavorable for the installation adjustment of lathe at the user scene.
Because " U " the type structure of present homemade underfloor wheels lathe and the restriction of melt pit form, once can only be to one (group) wheel to processing operation, realize many group wheels to (many group wheels are to being many or an a plurality of two-wheeled) processing simultaneously or two above lathes side by side operations simultaneously hardly may.
At present homemadely do not fall to taking turns car wheel lathe and adopt the fricting transmissioning mode driving wheel of friction roller rotating, after unsteady track is removed, at wheel the bottom is contacted with wheel tread by four friction rollers of hydraulic control (every group of wheel is to each two of both sides) rise, drive motors drives friction roller by belt pulley, reduction box, by friction roller and wheel to the frictional force driven wheel of a generation to rotation.There are following two shortcomings in this kind of drive: the one, influence machining accuracy.Friction roller rubs driven wheel to rotating with the processing wheel tread, the surface of its friction is exactly the machined surface of operation, carrying out along with processing, contact-making surface changes, friction roller certainly will will produce vibrations, the unbalance stress of each friction roller is unfavorable for the lathe steady operation simultaneously, influences machining accuracy.The 2nd, along with the carrying out of processing, contact-making surface changes, friction roller with take turns to frictional force change, be easy to generate skidding.For guarantee friction roller and wheel to frictional force, avoid skidding, wheel is heavily had requirement (generally being not less than 10 tons) to axle, to install screwdown gear additional during the heavy deficiency of axle.
The left and right knife rest of present homemade underfloor wheels lathe is divided on the left and right lathe bed by the knife rest column on each limit, and " U " type structure of top " opening " makes the integral rigidity deficiency of lathe but left and right lathe bed is only by the tie-beam of bottom is continuous.And left and right knife rest separates the design, manufacturing, assembling and the geometric accuracy that make lathe and detects the science that all lacks, unification, perfect benchmark, also is unfavorable for the installation adjustment of lathe at the user scene.
Summary of the invention
The purpose of this utility model is to provide a kind of many wheels simultaneously to the lathe in the processing of rail train wheel, this lathe is taken turns processing operation simultaneously many groups, can either significantly improve the processing operating efficiency, simultaneously since each wheel that each bar wheel, can improve same trolley body (or same bogie) to being on the same machining benchmark platform between physical dimension difference.
The purpose of this utility model is achieved through the following technical solutions:
Can to many groups wheel process simultaneously at the rail type wheel lathe, by main transmission, hydraulic system, tool holder system is formed, hydraulic system, main transmission, tool holder system all places on its plane lathe bed, the plane lathe bed is the basic structural member of this lathe, rolling stock to be processed places on the lathe bed position, plane from the rail traction, the utility model can be realized mobile operation, main transmission: include motor, belt pulley, reduction box, universal drive shaft, the spindle nose that the adpting flange transition pipe nipple is formed directly drives, three-phase alternating-current motor links to each other with gearbox through belt pulley, and the adpting flange transition pipe nipple that the gear box output end flange is connected with main shaft through Hooks coupling universal coupling and wheel are to linking to each other; Hydraulic system: include Hydraulic Station, oil pipe line, hydraulic pressure axle box supporting centring means, hydraulic pressure axle box supporting centring means fifth wheel to lifting and locating wheel to the centre of gyration; Hydraulic Station includes motor, oil pump, control valve, oil pipe line, and the Hydraulic Station oil feed line links to each other with hydraulic pressure axle box supporting centring means; Tool holder system: every wheel is made up of two groups of knife rests tool holder system, and two groups of cutter frame structures are identical, fuse by guide rail, includes upper strata knife rest, lower floor's knife rest, slide plate and axial servomotor, radial servo motor; Slide plate is installed on the lathe bed of plane, and lower floor's knife rest is located on the guide rail, and by axial driven by servomotor, the upper strata knife rest is installed on lower floor's knife rest.
Described can to many groups wheel process simultaneously at the rail type wheel lathe, the described body of lathe bed is the mobile platform of algnment accuracy tool guide, and mobile platform is fixed on the two rails, makes it constitute the body of lathe bed with rail.
Described can to many groups wheel process simultaneously at the rail type wheel lathe, described tool holder system is equiped with numerical control program, with its servomotor and be connected ball-screw and connect X to Z to follow rest; Tool holder system includes knife rest, tool guide, knife rest control device, self-operated measuring unit, hydraulic pressure axle box supporting centring means, on the hydraulic pressure axle box supporting centring means limitation travel switch is installed.
Described can to many groups wheel process simultaneously at the rail type wheel lathe, the complanation lathe bed, the knife rest of lathe bed, tool guide, knife rest control device, cutter, hydraulic pressure axle box supporting centring means, self-operated measuring unit all place on the same basic process plane.
Described can to many groups wheel process simultaneously at the rail type wheel lathe, shared same the guide rail of left and right knife rest.
Advantage of the present utility model and effect are:
1. utility model has realized the complanation bed piece.Owing to adopt at the rail wheel mode that do not fall, traditional lathe is driven the dynamical system that workpiece (wheel to) rotates separate, lathe bed is designed to mainly plane based on knife rest, tool guide, knife rest control device, self-operated measuring unit, hydraulic pressure axle box supporting centring means etc. from lathe bed.Promptly overcome the left and right layout of present homemade underfloor wheels lathe, left and right lathe bed is only linked to each other and the integral rigidity deficiency of the lathe that " U " type structure of top " opening " causes by the tie-beam of bottom.Shared same the guide rail of the while left and right knife rest of the utility model, each cutter, hydraulic pressure axle box supporting centring means, self-operated measuring unit all are on the same basic process platform, can effectively improve design, manufacturing, assembling geometric accuracy and the on-the-spot Installation and Debugging of lathe, the precision of processing operation.
The utility model can be simultaneously to one or many group wheels to processing operation.The utility model can be taken turns processing simultaneously two, three groups an of bogie, can significantly improve the processing operating efficiency; Simultaneously since each wheel that each bar wheel, can reduce same trolley body (or same bogie) to being on the same machining benchmark platform between the physical dimension error, improve machining accuracy.With the expansion of lathe work standard technique platform, many chassis bed is arranged in juxtaposition, and uses same technological datum, centralized Control.That is: whole bogie (two to three groups wheel to) is put on the same basic process platform, according on locomotive or the same bogie of vehicle each the wheel to distance, tool guide and hydraulic pressure axle box supporting centring means is set, each organizes cutter and hydraulic pressure axle box supporting centring means is worked (by the control cabinet centralized Control) simultaneously, can process operation to carrying out at rail to many groups of wheels simultaneously.Each organizes knife rest and hydraulic pressure axle box supporting centring means carries out adjustment on same datum plane, can effectively guarantee lathe Installation and Debugging precision and the many group wheels machining accuracy to machining.
3. the utility model main transmission mode adopts spindle nose directly to drive.And adopt the utility model wheel to direct drive mode cocoa simplified design, improve the reliability that drives efficient and strengthen drive unit.Make an adpting flange transition pipe nipple, the one end is pressed bearing gland processing, and the other end is an adpting flange.To take turns during operation axle box cover, bearing gland will be pulled down, the adpting flange transition pipe nipple is installed in the bearing gland position, between gearbox and adpting flange transition pipe nipple, be connected with universal drive shaft, ac motor by belt pulley, gearbox, universal drive shaft, the direct driving wheel of adpting flange to rotating.
4. the left and right knife rest of the utility model fuses.Left and right knife rest is fused by its guide rail, design, manufacturing, assembling and the geometric accuracy detection of the left and right knife rest of lathe all are based upon on the same technological datum, help improving the measurement and the protection of lathe, after left and right knife rest fuses, the slide plate of knife rest directions X will arrange that changing the upper strata into arranges, also helps the installation of knife rest ball-screw by lower floor.Same wheel uses same axially (Z to) guide rail to two groups of knife rests of both sides, and left and right knife rest is fused.
5. the utility model can be realized mobile operating.Behind main system modular, can be designed to the packaged type lathe, directly to the working line rail, process operation under special circumstances.Design a simple and easy mobile platform with algnment accuracy tool guide, mobile platform is fixed on the two rails, make it constitute the body of lathe bed (must measure, adjust through strictness, guarantee that tool guide is vertical with track, be parallel to wheel shaft) with tool guide to guarantee wheel with rail.Other designs two movable hydraulic pressure axle box supporting centring means with manual adjustment function, place respectively and will take turns under the axle box of both sides jack-up, be that measurement point carries out further accurate the measurement with the axle center, both sides again, manually adjust hydraulic pressure axle box supporting centring means and carry out precision centering, location, with guarantee wheel to wheel shaft and knife rest Z to parallel, with X to vertical, with the machining accuracy under the assurance mobile operating condition.
In sum, along with the raising of the rolling stock speed of service, wheel is shorter and shorter to the cycle of repairing, and two, three groups wheels on the same bogie are to often all wanting place under repair processing.Design of the present utility model has realized that once many wheels to processing operation simultaneously, have significantly improved operating efficiency.Simultaneously owing to adopt main transmission mode and the complanation lathe bed of wheel to direct driving, both overcome horizontal the wheel and need disassemble the right trouble of wheel lathe, overcome again that ground pit type does not fall to taking turns car wheel lathe lathe bed rigidity deficiency, left and right sides knife rest is discrete and the influence that floating rail produces need be set, can realize directly tread being processed operation at the enterprising road wheel of fixed rail track.Owing to no longer establish floating rail and melt pit, wheel only has less than 20 mm clearance to square in orbit with track, can guarantee production safety, and can save relevant design such as floating rail and control system thereof.Owing to there is not floating rail, rolling stock lathe up and down is normal traveling, does not have melt pit simultaneously, and abnormal conditions take place, and hinders less than the people, also pounds less than equipment, and rolling stock can be not impaired yet, has extraordinary security.
Description of drawings
Accompanying drawing of the present utility model is the schematic top plan view that three groups of wheels of same bogie are formed processing simultaneously.
The specific embodiment
With reference to the accompanying drawings the utility model is elaborated.
Overall structure: plane lathe bed 10 is the basic structural member of this lathe, and parts such as other hydraulic system, main transmission, knife rest digital control system are all placed on it, are technological datum with it, to guarantee machining accuracy.11 is rail, and rolling stock to be processed stops from the assigned address that rail is drawn to lathe.
Main transmission: mainly form by parts such as motor, belt pulley, universal drive shafts.Three-phase alternating-current motor 9 is given gearbox 7 through belt pulley 8 with transmission of power, by the output of gear box output end flange, gives the adpting flange transition pipe nipple 5 that is connected with main shaft through Hooks coupling universal coupling 6 with transmission of power after gearbox slows down, and directly driven wheel rotates 1.
Hydraulic system: hydraulic system mainly is made up of Hydraulic Station, oil pipe line, hydraulic pressure axle box supporting centring means, and hydraulic pressure axle box supporting centring means 4 major functions are to finish wheel to 1 lifting and take turns location to the centre of gyration.Hydraulic Station mainly is made of motor, oil pump, control valve, oil pipe line, finishes the oil-filled and emptying to hydraulic pressure axle box supporting centring means 4.On the hydraulic pressure axle box supporting centring means 4 limitation travel switch is installed, to control its lift and can guarantee that the keeping strokes of each hydraulic pressure axle box supporting centring means, lift are identical.
Tool holder system 3: every group of wheel is made up of two groups of knife rests tool holder system, two groups of cutter frame structures are identical, mainly by upper strata knife rest, lower floor's knife rest, slide plate 2 and control radially (X to) with axially (Z to) servomotor of axial feed, the servomotor of radial feed are formed.Slide plate 2 is installed on the lathe bed platform 10, and lower floor's knife rest can be realized Z to moving back and forth at the downward slide plate 2 of the driving of axial servomotor, and the upper strata knife rest is installed on lower floor's knife rest, can realize under the driving of radial servo motor that X is to tool feeding.Tool holder system is controlled by Computerized Numerical Control System Program, its feeding by servomotor drive ball-screw promote knife rest X to Z to moving, finish the wheel tread machining.
The utility model can to one or how the group wheel be to processing operation simultaneously.Along with the raising of the rolling stock speed of service, wheel is shorter and shorter to the cycle of repairing, and two, three groups wheels on the same bogie are to often all wanting place under repair processing.Existing two kinds of car wheel lathes all once can only be to a wheel to processing operation.And adopt present technique can take turns two, three groups an of bogie to processing simultaneously, can significantly improve the processing operating efficiency; Simultaneously since each wheel that each bar wheel, can improve same trolley body (or same bogie) to being on the same machining benchmark platform between the physical dimension error, improve machining accuracy.
The utility model is on lathe work standard technique platform, according on locomotive or the same bogie of vehicle each the wheel to distance, cutter guide and hydraulic pressure axle box supporting positioning device are set, each organizes cutter and hydraulic pressure axle box supporting positioning device is worked simultaneously, can process operation to carrying out at rail to many groups of wheels simultaneously.Each organizes cutter and hydraulic pressure axle box supporting positioning device carries out adjustment on same datum plane, with many groups of wheels guaranteeing machining simultaneously to machining accuracy.
The utility model main transmission mode adopts wheel to direct driving.Now do not fall to taking turns car wheel lathe and adopt the friction pulley mode, after movable rail is removed, at wheel the bottom is contacted with wheel tread by four friction pulleys of hydraulic control (every group of wheel is to each two of two sides) rise, drive motor drives friction pulley by belt pulley, reduction box and rotates, by friction pulley and wheel to the frictional force driven wheel of a generation to rotation.There are following two shortcomings in this kind of drive: the one, influence machining accuracy.Friction pulley rubs driven wheel to rotating with the processing wheel tread, the surface of its friction is exactly the machined surface of operation, carrying out along with processing, contact-making surface changes, friction pulley certainly will will be swung at above-below direction, the unbalance stress of each friction pulley is unfavorable for the lathe steady operation simultaneously, influences machining accuracy.The 2nd, along with the carrying out of processing, contact-making surface changes, friction pulley with take turns to frictional force change, be easy to generate skidding.For guarantee friction pulley and wheel to frictional force, avoid skidding, wheel is heavily had requirement (generally being not less than 10 tons) to axle, to install screwdown gear additional during the heavy deficiency of axle.And adopt wheel can avoid above 2 deficiencies to direct drive mode, but and simplified design, the reliability that drives efficient and strengthen drive unit improved.
The utility model is pulled down axle box cover and bearing gland, the adpting flange transition pipe nipple is installed in the bearing gland position, and (bearing gland processing is pressed in adpting flange transition pipe nipple inner end, the outer end is an adpting flange), between gearbox and adpting flange transition pipe nipple, be connected with universal drive shaft, ac motor by gearbox, universal drive shaft, the direct driving wheel of adpting flange to rotating.
The utility model can be realized mobile operating.Behind main system modular, can be designed to the packaged type lathe, directly to the working line rail, process operation under special circumstances.
During operation, locomotive (or vehicle) is drawn assigned address to the lathe, pull down to be processed the wheel, carry out braking, end wheel, prevent runaway brake shoe; Pull down right axle box cover, the bearing gland of taking turns to be processed; The adpting flange transition pipe nipple is installed, and is connected with universal drive shaft, output shaft of gear-box flange; Start Hydraulic Station, drive hydraulic pressure axle box supporting centring means and take turns jack-up (leaving rail 20mm approximately), measure and carry out manual fine-tuning, realize that wheel is to centering, location by the axle center, two ends with to be processed; Knife rest is adjusted to correct position, and knife rest carries out tool setting one by one; The input machined parameters; Start nc program, the processing of beginning wheel tread; The tread process finishing withdraws from knife rest; Fall hydraulic pressure axle box supporting positioning device, make wheel falling back on the rail; The outage source; Pull down and connect the counter flange pipe nipple; Recover wheel set bearing gland, axle box cover.
Claims (5)
- Can to many groups wheel process simultaneously at the rail type wheel lathe, form by main transmission, hydraulic system, tool holder system, hydraulic system, main transmission, tool holder system all place on its plane lathe bed, the plane lathe bed is the basic structural member of this lathe; Rolling stock to be processed places on the lathe bed position, plane from the rail traction, it is characterized in that: main transmission: the spindle nose that includes motor, belt pulley, reduction box, universal drive shaft, adpting flange transition pipe nipple composition directly drives, three-phase alternating-current motor (9) links to each other with gearbox (7) through belt pulley (8), and the gear box output end flange links to each other to (1) with wheel through the adpting flange transition pipe nipple (5) that Hooks coupling universal coupling (6) is connected with main shaft; Hydraulic system: include Hydraulic Station, oil pipe line, hydraulic pressure axle box supporting centring means (4), hydraulic pressure axle box supporting centring means fifth wheel to (1) lifting and locating wheel to the centre of gyration; Hydraulic Station includes motor, oil pump, control valve, oil pipe line, and the Hydraulic Station oil feed line links to each other with hydraulic pressure axle box supporting centring means (4); Tool holder system (3): every wheel is made up of two groups of knife rests tool holder system, and two groups of cutter frame structures are identical, fuse by guide rail, includes upper strata knife rest, lower floor's knife rest, slide plate (2) and axial servomotor, radial servo motor; Slide plate (2) is installed on the plane lathe bed (10), and lower floor's knife rest is located on the slide plate (2), and by axial driven by servomotor, the upper strata knife rest is installed on lower floor's knife rest.
- 2. according to claim 1 can to many groups wheel process simultaneously at the rail type wheel lathe, it is characterized in that: the described body of lathe bed is the mobile platform of algnment accuracy tool guide, mobile platform is fixed on the two rails, makes it constitute the body of lathe bed with rail.
- 3. according to claim 1 can to many groups wheel process simultaneously at the rail type wheel lathe, it is characterized in that: described tool holder system is equiped with numerical control program, with its servomotor and be connected ball-screw and connect X to Z to follow rest; Tool holder system includes knife rest, tool guide, knife rest control device, self-operated measuring unit, hydraulic pressure axle box supporting centring means (4), on the hydraulic pressure axle box supporting centring means limitation travel switch is installed.
- 4. according to claim 1 can to many groups wheel process simultaneously at the rail type wheel lathe, it is characterized in that: the complanation lathe bed, the knife rest of lathe bed, tool guide, knife rest control device, cutter, hydraulic pressure axle box supporting centring means, self-operated measuring unit all place on the same basic process plane.
- 5. according to claim 4 can to many groups wheel process simultaneously at the rail type wheel lathe, it is characterized in that: shared same the guide rail of left and right knife rest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200138711U CN201579417U (en) | 2009-05-21 | 2009-05-21 | Rail-type wheel lathe capable of simultaneously machining a plurality of wheel groups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200138711U CN201579417U (en) | 2009-05-21 | 2009-05-21 | Rail-type wheel lathe capable of simultaneously machining a plurality of wheel groups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201579417U true CN201579417U (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200138711U Expired - Fee Related CN201579417U (en) | 2009-05-21 | 2009-05-21 | Rail-type wheel lathe capable of simultaneously machining a plurality of wheel groups |
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| Country | Link |
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| CN (1) | CN201579417U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658497A (en) * | 2012-04-18 | 2012-09-12 | 武汉重型机床集团有限公司 | Floating driving device for friction wheel |
| CN109382525A (en) * | 2017-08-14 | 2019-02-26 | 黑根沙伊特-Mfd有限公司 | The device and technique of simultaneous processing rail vehicle multiple groups wheel group |
-
2009
- 2009-05-21 CN CN2009200138711U patent/CN201579417U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658497A (en) * | 2012-04-18 | 2012-09-12 | 武汉重型机床集团有限公司 | Floating driving device for friction wheel |
| CN102658497B (en) * | 2012-04-18 | 2014-06-25 | 武汉重型机床集团有限公司 | Floating driving device for friction wheel |
| CN109382525A (en) * | 2017-08-14 | 2019-02-26 | 黑根沙伊特-Mfd有限公司 | The device and technique of simultaneous processing rail vehicle multiple groups wheel group |
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