CN212388272U - Steel rail welding seam full-section milling and grinding machine and operation vehicle - Google Patents
Steel rail welding seam full-section milling and grinding machine and operation vehicle Download PDFInfo
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- CN212388272U CN212388272U CN202021012438.9U CN202021012438U CN212388272U CN 212388272 U CN212388272 U CN 212388272U CN 202021012438 U CN202021012438 U CN 202021012438U CN 212388272 U CN212388272 U CN 212388272U
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- body frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
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- 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
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
Abstract
The utility model relates to a track construction technical field is a rail welding seam full section milling and grinding machine and operation car particularly, include and rotate continuous first body frame and second body frame through location axis, be equipped with the railhead locating piece in location centraxonial one side, first body frame and second body frame are equipped with the rail waist locating piece relatively in the railhead locating piece is far away from location centraxonial one side, and be equipped with actuating mechanism between first body frame and the second body frame, first body frame and second body frame between form the processing space, the processing space in be equipped with the milling and grinding device that is used for milling and grinding the rail. The utility model simplifies the whole structure, greatly shortens the positioning distance, increases the rigidity of the equipment and ensures that the deviation of the positioning reference is in a reasonable range; the device takes the steel rail as a fixed reference, and carries out milling along the surface of the steel rail without a complex measuring device.
Description
Technical Field
The utility model relates to a track construction technical field is a rail welding seam full-section milling and grinding machine and operation car particularly.
Background
The rail welding seam is handled one of the lower key process of whole track laying construction mechanization degree at present, and present sanding vehicle all has certain problem in structure and the technique such as location benchmark, rail deformation, bistrique, in addition, the automobile body is because need possess structures such as walking, welding seam automated inspection, hydraulic pressure auxiliary system, and is too heavy complicated, also is the key restriction factor that leads to the sanding vehicle can not drop into practicality.
The rail grinding equipment applied at home and abroad mainly comprises a copying rail grinding machine and a rail grinding train. The conventional copying steel rail grinding machine generally uses an internal combustion engine as a power source, is suitable for field operation without a power source, but has lower working efficiency and is not suitable for field construction operation. The rail grinding train is a large machine which is self-powered, can automatically finish grinding operation on a line rail, is construction equipment which is complex in structure, advanced in control, integrated with machine, electricity, liquid, gas and computer technologies, and has the advantages of being capable of realizing high-quality and high-efficiency grinding. However, the repair welding machine is expensive in acquisition cost, is mainly used for maintenance, repair and polishing construction after repair welding of the steel rails of the rail transit on a job site, and is long in operation line, large in operation amount and centralized. The method is not suitable for the polishing construction working condition of the welded seamless track of the newly-built track traffic.
Therefore, the applicant of the application discloses a telescopic bidirectional operation transverse evacuation multifunctional operation vehicle in a Chinese patent CN201721588163.1, the operation vehicle adopts a telescopic structure, a vehicle body can be longitudinally stretched and retracted, operation, driving and transportation are facilitated, vehicle lifting and steel rail lifting are reasonably integrated, the labor intensity of personnel is reduced, the construction efficiency is improved, a track line can be transversely avoided, the operation of the vehicle in a long and large interval is facilitated, the working efficiency is higher, the application range is wider, meanwhile, the operation space of the operation vehicle in a working state is large, various operation devices can be installed, the telescopic bidirectional operation transverse evacuation multifunctional operation vehicle is suitable for various operation working conditions, and the universality is strong.
The steel rail grinding machine has the advantages that the steel rail grinding machine integrates the problems of the existing grinding vehicle and the existing grinding equipment, a structure which uses the steel rail as a positioning reference and moves and is profiled needs to be designed, the milling and grinding processing of the position of a welding line is realized, the construction operation environment is improved, the steel rail grinding machine and the telescopic bidirectional operation transverse evacuation multifunctional operation vehicle are combined for use, and the construction efficiency is improved.
Disclosure of Invention
An object of the utility model is to solve prior art's not enough, provide a rail welding seam full section milling machine and operation car, the location benchmark of above one process is the benchmark, is convenient for press from both sides tight and location rail to polish through grinding device.
In order to achieve the purpose, the full-section milling and grinding machine for the steel rail welding line is designed, and comprises a first body frame and a second body frame which are connected in a rotating mode through a positioning center shaft, a rail top positioning block is arranged on one side of the positioning center shaft, a rail waist positioning block is oppositely arranged on one side, far away from the positioning center shaft, of the rail top positioning block of the first body frame and the second body frame, a driving mechanism is arranged between the first body frame and the second body frame and used for driving the first body frame and the second body frame to rotate relatively around the positioning center shaft so as to clamp and loosen the steel rail through the rail top positioning block and the rail waist positioning block, a machining space is formed between the first body frame and the second body frame, and a milling and grinding device for milling and grinding the steel rail is arranged in the machining space.
The utility model discloses still have following preferred technical scheme:
the rail waist positioning mechanism is characterized in that the first body frame and the second body frame are arranged in bilateral symmetry, the rail top positioning block is arranged on the lower side of the positioning center shaft, the driving mechanism is arranged between the upper ends of the first body frame and the second body frame, and the rail waist positioning block is arranged between the lower ends of the first body frame and the second body frame.
The milling and grinding device comprises a cutter support, a milling and grinding driving mechanism and a moving mechanism, wherein the cutter support is used for connecting a cutter, the milling and grinding driving mechanism is used for driving the cutter to rotate, and the cutter support and the milling and grinding driving mechanism are connected to the moving mechanism and can move along a steel rail under the driving of the moving mechanism.
The milling and grinding driving mechanism is connected with the belt wheel through a transmission belt so as to drive the belt wheel and the cutter to rotate.
Moving mechanism include X axle slide, X axle guide rail, X axle actuating mechanism, Y axle slide, Y axle guide rail and Y axle actuating mechanism, cutter support with mill actuating mechanism set up in X axle slide on, X axle slide cooperation connect on X axle guide rail, X axle guide rail set up on Y axle slide, Y axle slide cooperation connect on Y axle guide rail, X axle actuating mechanism with X axle slide link to each other and be used for driving X axle slide along X axle guide rail motion, Y axle actuating mechanism with Y axle slide link to each other and be used for driving Y axle slide along Y axle guide rail motion.
The X-axis driving mechanism comprises an X-axis servo motor and an X-axis transmission lead screw driven by the X-axis servo motor, the X-axis transmission lead screw is connected with the X-axis sliding plate, the Y-axis driving mechanism comprises a Y-axis servo motor and a Y-axis transmission lead screw driven by the Y-axis servo motor, and the Y-axis transmission lead screw is connected with the Y-axis sliding plate.
Two sets of milling and grinding devices are arranged in the processing space and are respectively positioned on two sides of the positioning middle shaft, one set of milling and grinding device is connected with the first body frame, and the other set of milling and grinding device is connected with the second body frame.
The utility model discloses still relate to an adoption rail welding seam full-section mill's operation car, the operation car including left side automobile body and right side automobile body, connect the crossbeam through the telescopic between left side automobile body and the right side automobile body and link to each other, left side automobile body and right side automobile body downside are equipped with preceding hydraulic support respectively and well hydraulic support, left side automobile body and right side automobile body downside are equipped with respectively and turn to wheelset and driving wheel group to the middle part downside of operation car still is equipped with the auxiliary stay wheelset, the downside of connection crossbeam set up the suspension system of liftable through removing the pulley, be used for hanging rail welding seam full-section mill.
Beneficial effects of the utility model
Compared with the prior art, the utility model, composite structure is simple feasible, easily installs and dismantles, and its advantage lies in: the integral structure is simplified, the positioning distance is greatly shortened, the rigidity of the equipment is increased, and the deviation of the positioning reference is ensured to be within a reasonable range; the device takes the steel rail as a fixed reference, and carries out milling along the surface of the steel rail without a complex measuring device; the motion profiling avoids the problems that the layout range of the profiling grinding head is large and the grinding head is easy to block; the clamping and fixing take the appearance of the steel rail as a positioning reference, and the equipment can deflect randomly along with the steel rail without influencing the motion track of the grinding mechanism; the design is unique, the structure for realizing movable grinding in a small-volume grinding machine mode is proposed for the first time, and the scientific research value and the application value are unlimited; the construction efficiency is improved, the mechanical construction is greatly improved compared with the original manual polishing efficiency, and the double-lane simultaneous polishing can be realized; the construction safety is greatly improved, and the occupational health condition of field constructors is favorably improved.
Drawings
FIG. 1 is a schematic structural view of the rail weld full-face milling and grinding machine of the present invention.
FIG. 2 is a schematic structural view of the other side of the milling and grinding machine for full-section welded joints of steel rails.
Fig. 3 is a schematic structural diagram of a servo system portion in the present invention.
Fig. 4 is a schematic structural diagram of a middle milling and grinding system part of the present invention.
Figure 5 is a schematic view of rail clamping.
Figure 6 is a schematic illustration of rail loosening.
Fig. 7 is an operational view of the work vehicle.
Fig. 8 is a schematic view of a transfer face of the work vehicle.
In the figure: 1-1 part of body frame structure 1-2 parts of servo system 1-3 parts of milling and grinding system 2-1 parts of hydraulic cylinder 2-2 parts of second body frame 2-3 parts of first body frame 2-4 parts of rail top positioning block 2-5 parts of rail waist positioning block 2-6 parts of positioning center shaft 3-1 part of servo motor 3-2 parts of speed reducer 3-3 parts of transmission screw 3-4 parts of positioning stop dog 3-5 parts of guide rail 4-1 parts of driving motor 4-2 parts of milling cutter (or grinding cutter) 4-3 parts of transmission belt 4-4 parts of belt pulley 4-5 parts of cutter support 4-6 parts of X shaft sliding plate 4-7 parts of Y shaft sliding plate 5-1 parts of steel rail 7-1 parts of left side vehicle body 7-2 parts of right side vehicle body 7-3 parts of connecting beam 7-4 parts of moving pulley 7-5, a rail full-section milling and grinding machine 8-1, a front hydraulic support 8-2, a steering wheel set 8-3, a middle hydraulic support 8-4, an auxiliary support wheel set 8-5, a driving wheel set 8-6 and a vehicle body.
Detailed Description
The structure and principle of such a device will be apparent to those skilled in the art from the following further description of the invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment provides a steel rail welding seam full-section milling and grinding machine which mainly comprises a body frame structure, a servo control system and a milling and grinding system.
The milling and grinding machine body frame structure mainly comprises a first body frame and a second body frame, the first body frame and the second body frame are rotatably connected through a positioning middle shaft, a rail top positioning block is arranged on one side of the positioning middle shaft, rail waist positioning blocks are oppositely arranged on one sides, far away from the positioning middle shaft, of the rail top positioning blocks of the first body frame and the second body frame, a driving mechanism is arranged between the first body frame and the second body frame and used for driving the first body frame and the second body frame to relatively rotate around the positioning middle shaft so as to clamp and loosen a steel rail through the rail top positioning block and the rail waist positioning block, a machining space is formed between the first body frame and the second body frame, and a servo control system and a milling and grinding system are arranged in the machining space.
Specifically, as shown in fig. 1 and 2, in the present embodiment, the first body frame and the second body frame are made of castings, so as to enhance the structural strength, and the frame structure is integrated with the rail surface as a reference surface, so that the moving mechanism can drive the milling device to move along the rail arc surface. The rail waist positioning block is arranged between the lower ends of the first body frame and the second body frame, namely between two sides of the clamping part, the rail waist positioning block is arranged relatively. As shown in fig. 5 and 6, the first body frame and the second body frame are pushed by a hydraulic cylinder serving as a driving mechanism to enable the rail top positioning blocks and the rail web positioning blocks on the two sides to be tightly attached to the outer surface of the steel rail, so that three relatively fixed clamping surfaces can be formed after the steel rail is clamped, and the opening and closing of the clamped steel rail are controlled by the expansion and contraction of the hydraulic cylinder.
The milling and grinding system mainly comprises a cutter support and a milling and grinding driving mechanism, wherein the cutter support is used for connecting a cutter, the milling and grinding driving mechanism is used for driving the cutter to rotate, and the cutter support and the milling and grinding driving mechanism are connected to a moving mechanism and can move along a steel rail under the driving of the moving mechanism. For example, as shown in fig. 4, a mounting hole for mounting a tool is formed in the tool holder, a rotary bearing can be disposed in the mounting hole to rotatably connect the tool and the tool holder, a pulley is disposed on the tool holder, a rotary shaft of the tool is connected to the pulley in a matching manner, and the milling and grinding driving mechanism is connected to the pulley through a transmission belt to drive the pulley and the tool to rotate.
The servo control system is a moving mechanism for driving the cutter support and the milling and grinding driving mechanism to move along the surface of the steel rail and mainly comprises two servo translation shafts in the X direction and the Y direction, each servo translation shaft system mainly comprises a servo motor, a speed reducer, a transmission lead screw, a positioning stop block, a guide rail and the like, an X-axis sliding plate and a Y-axis sliding plate are respectively installed on the two servo translation shafts, so that the milling and grinding system installed on the X-axis sliding plate can be driven to move along the surface of the steel rail, the servo motors are preferably used for driving, and accurate arc motion can be realized by means of a machine tool CNC system through accurate positioning. Specifically, the X-axis driving mechanism comprises an X-axis servo motor and an X-axis transmission lead screw driven by the X-axis servo motor, the X-axis transmission lead screw is connected with an X-axis sliding plate through a positioning stop block of an X-axis, the Y-axis driving mechanism comprises a Y-axis servo motor and a Y-axis transmission lead screw driven by the Y-axis servo motor, the Y-axis transmission lead screw is connected with a Y-axis sliding plate through a positioning stop block of a Y-axis, the X-axis sliding plate is connected on an X-axis guide rail in a matching manner, the X-axis guide rail is arranged on the Y-axis sliding plate, the Y-axis sliding plate is connected on a Y-axis guide rail in a matching manner and fixed with the positioning stop block of the Y-axis, the X-axis driving mechanism is arranged on the Y-axis sliding plate and used for driving the X-axis sliding plate to move along the X-axis guide rail, and the Y-axis driving mechanism is arranged, the cutter bracket and the milling and grinding driving mechanism are arranged on the X-axis sliding plate.
Particularly, the system of polishing in this embodiment includes two sets of cutter support and mill and grind actuating mechanism about, one set with first body frame be connected, another set with second body frame be connected, every set of cutter support with mill and grind actuating mechanism and connect respectively on one set of moving mechanism, one set of Y axle actuating mechanism and Y axle actuating mechanism are connected in the inboard space of first body frame promptly, another set of Y axle actuating mechanism and Y axle actuating mechanism connect in the inboard space of second body frame, are used for driving two sets of cutter support and mill and grind actuating mechanism respectively and move along the rail.
The milling system realizes the profiling motion of the steel rail cambered surface by means of an X-axis sliding plate and through the driving of a personal clothing system, and the milling head adopts a universal cutter head structure, is easy to replace and purchase, and can be replaced by a roller-type grinding head for fine grinding treatment. The size type selection of tool bit is especially important, and when the tool bit diameter was greater than rail cambered surface minimum circular arc radius, the defect point can increase, and the efficiency of polishing then can be influenced to tool bit diameter undersize, should regard rail cambered surface size as the reference, chooses for use appropriate tool bit, and wherein the defect point is the region that the bistrique can not cover the welding seam completely.
The working principle of the structure of the steel rail welding seam full-section milling and grinding machine is as follows:
the hydraulic cylinder provides holding power, the rail welding seam full-section milling and grinding machine uses the positioning center shaft as a circle center to enable the first body frame and the second body frame on two sides to rotate around the positioning center shaft at a small angle, and the rail clamping effect is achieved, so that the rail top positioning block and the rail waist positioning block are tightly attached to the surface of the rail, and the rail straightening effect is achieved.
For the left and right sets of cutter supports and the milling and grinding driving mechanisms, the disc type milling cutter starts to run along the set cambered surface of the steel rail from the rail head and the rail bottom surface respectively, and the servo control system can effectively ensure the precision of a running track. The milling process adopts a cold milling mode, and the surface of the steel rail is ensured not to be hardened. And after milling is finished, cylindrical knife sharpening with wider section can be replaced for fine grinding treatment.
Examples
In this embodiment will the full section of rail welding seam mill carry on the operation car, the operation car include left side automobile body and right side automobile body, connect the crossbeam through the telescopic between left side automobile body and the right side automobile body and link to each other, left side automobile body and right side automobile body downside are equipped with preceding hydraulic support respectively and well hydraulic support, left side automobile body and right side automobile body downside are equipped with respectively and turn to wheelset and drive wheelset to the middle part downside of operation car still is equipped with the auxiliary stay wheelset. The lower side of the connecting beam is provided with a lifting suspension system through a movable pulley, and the lifting suspension system is used for suspending the steel rail welding line full-section milling and grinding machine. In addition, like the telescopic bidirectional-operation transverse-evacuation multifunctional working vehicle disclosed in the Chinese patent CN201721588163.1 by the applicant of the application, the lower side of the working vehicle can be provided with a rail clamping device.
When the device is used, as shown in fig. 7, the two ends of the vehicle body are firstly extended, the wheel sets of the vehicle are separated from the steel rail by a certain height through the front hydraulic support and the middle hydraulic support, and then the steel rail welding seam full-section milling and grinding machine is hoisted to the position above the steel rail welding seam through the movable pulley. The rail is lifted by the rail clamping device, the first body frame and the second body frame are in an open state, and the rail top positioning block of the milling and grinding machine is tightly attached to the upper surface of the rail.
Then, as shown in fig. 5, the first body frame and the second body frame are pushed to rotate around the positioning middle shaft by the operation of the hydraulic cylinder, so that the rail web positioning block is tightly attached to the surface of the steel rail, and a certain pressure is applied. And after the steel rail is clamped, starting the milling and grinding system, and milling and grinding the cutter along the cambered surface of the steel rail. And then replacing the grinding head according to the requirement, starting the milling and grinding system again until the machining is finished, and pushing the first body frame and the second body frame to rotate around the positioning middle shaft and loosen the steel rail by working of the hydraulic cylinder, and lifting the steel rail welding seam full-section milling and grinding machine to a certain height as shown in figure 6.
Finally, as shown in fig. 8, the left side car body and the right side car body are folded towards the middle, the auxiliary support wheel set is retracted, the steel rail is placed to the track main line position, the hydraulic support is retracted, the car wheel set is placed on the upper surface of the steel rail, and the car wheel set is transferred to the next working surface to carry out the operation.
Claims (8)
1. A rail welding seam full-section milling and grinding machine is characterized by comprising a first body frame and a second body frame which are connected in a rotating mode through a positioning center shaft, wherein a rail top positioning block is arranged on one side of the positioning center shaft, a rail waist positioning block is oppositely arranged on one side, far away from the positioning center shaft, of the rail top positioning block of the first body frame and the second body frame, a driving mechanism is arranged between the first body frame and the second body frame and used for driving the first body frame and the second body frame to rotate relatively around the positioning center shaft, so that a rail is clamped and loosened through the rail top positioning block and the rail waist positioning block, a machining space is formed between the first body frame and the second body frame, and a milling and grinding device for milling and grinding a rail is arranged in the machining space.
2. A rail welding seam full-section milling and grinding machine as claimed in claim 1, wherein the first body frame and the second body frame are arranged in bilateral symmetry, the rail top positioning block is arranged on the lower side of the positioning middle shaft, the driving mechanism is arranged between the upper ends of the first body frame and the second body frame, and the rail waist positioning block is arranged between the lower ends of the first body frame and the second body frame.
3. A rail weld full-face milling and grinding machine as claimed in claim 1, wherein the milling and grinding device includes a cutter holder, a milling and grinding driving mechanism and a moving mechanism, the cutter holder is used for connecting a cutter, the milling and grinding driving mechanism is used for driving the cutter to rotate, and the cutter holder and the milling and grinding driving mechanism are connected to the moving mechanism and can move along the rail under the driving of the moving mechanism.
4. A milling and grinding machine for the whole cross section of the welded seam of steel rail as claimed in claim 3, wherein said cutter holder has a pulley, the rotating shaft of said cutter is engaged with and connected to said pulley, and said milling and grinding drive mechanism is connected to said pulley via a transmission belt to drive said pulley and cutter to rotate.
5. A steel rail welding seam full-section milling and grinding machine as claimed in claim 3, wherein said moving mechanism comprises an X-axis slide plate, an X-axis guide rail, an X-axis driving mechanism, a Y-axis slide plate, a Y-axis guide rail and a Y-axis driving mechanism, said cutter holder and milling and grinding driving mechanism are arranged on said X-axis slide plate, said X-axis slide plate is connected to the X-axis guide rail in a matching manner, said X-axis guide rail is arranged on the Y-axis slide plate, said Y-axis slide plate is connected to the Y-axis guide rail in a matching manner, said X-axis driving mechanism is connected to said X-axis slide plate for driving said X-axis slide plate to move along the X-axis guide rail, and said Y-axis driving mechanism is connected to said Y-axis slide plate for driving said Y-axis slide plate to move along the Y-.
6. A rail weld full-face milling and grinding machine as claimed in claim 5, wherein the X-axis drive mechanism includes an X-axis servo motor and an X-axis drive screw driven by the X-axis servo motor, the X-axis drive screw is connected with the X-axis slide plate, the Y-axis drive mechanism includes a Y-axis servo motor and a Y-axis drive screw driven by the Y-axis servo motor, and the Y-axis drive screw is connected with the Y-axis slide plate.
7. A rail weld full-section milling and grinding machine as claimed in any one of claims 1 to 6, wherein two sets of milling and grinding devices are provided in the machining space, respectively located on both sides of the positioning center shaft, one set of milling and grinding devices being connected to the first body frame, the other set of milling and grinding devices being connected to the second body frame.
8. The operating vehicle is characterized by comprising a left vehicle body and a right vehicle body, wherein the left vehicle body and the right vehicle body are connected through a telescopic connecting beam, a front hydraulic support and a middle hydraulic support are respectively arranged on the lower sides of the left vehicle body and the right vehicle body, a steering wheel set and a driving wheel set are respectively arranged on the lower sides of the left vehicle body and the right vehicle body, an auxiliary supporting wheel set is further arranged on the lower side of the middle of the operating vehicle, and a lifting system is arranged on the lower side of the connecting beam through a movable pulley and used for lifting the rail welding seam full-face milling and grinding machine.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021012438.9U CN212388272U (en) | 2020-06-05 | 2020-06-05 | Steel rail welding seam full-section milling and grinding machine and operation vehicle |
| PCT/CN2021/080135 WO2021244092A1 (en) | 2020-06-05 | 2021-03-11 | Steel rail weld seam full-section milling and grinding machine and operating vehicle |
| DE212021000005.3U DE212021000005U1 (en) | 2020-06-05 | 2021-03-11 | Rail weld seam full cross-section milling machine and company vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021012438.9U CN212388272U (en) | 2020-06-05 | 2020-06-05 | Steel rail welding seam full-section milling and grinding machine and operation vehicle |
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| CN212388272U true CN212388272U (en) | 2021-01-22 |
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| CN202021012438.9U Active CN212388272U (en) | 2020-06-05 | 2020-06-05 | Steel rail welding seam full-section milling and grinding machine and operation vehicle |
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| CN (1) | CN212388272U (en) |
| WO (1) | WO2021244092A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021244092A1 (en) * | 2020-06-05 | 2021-12-09 | 中铁上海工程局集团有限公司 | Steel rail weld seam full-section milling and grinding machine and operating vehicle |
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| CN114279314B (en) * | 2021-12-30 | 2022-12-09 | 武汉大学 | Steel rail repair post-treatment strategy making method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203126887U (en) * | 2012-11-15 | 2013-08-14 | 西南交通大学 | Elastic locating clamping mechanism of steel rail detection trolley |
| CN104153262B (en) * | 2014-07-10 | 2016-04-27 | 上海工程技术大学 | A kind of equipment of portable accurate reparation subway bend Rail corrugation |
| CN105507096B (en) * | 2015-04-16 | 2018-03-23 | 中铁上海工程局集团有限公司 | Semi-automatic rail grinding machine |
| CN107964840A (en) * | 2017-11-24 | 2018-04-27 | 中铁上海工程局集团有限公司 | A kind of telescopic way traffic laterally withdraws multifunction operation vehicle elevation and application method |
| CN109056434A (en) * | 2018-10-19 | 2018-12-21 | 上海瑞纽机械股份有限公司 | A kind of steel rail welding line milling-grinding equipment |
| CN212388272U (en) * | 2020-06-05 | 2021-01-22 | 中铁上海工程局集团有限公司 | Steel rail welding seam full-section milling and grinding machine and operation vehicle |
| CN111764207A (en) * | 2020-06-05 | 2020-10-13 | 中铁上海工程局集团有限公司 | Steel rail welding seam full-section milling and grinding machine, operation vehicle and use method |
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2020
- 2020-06-05 CN CN202021012438.9U patent/CN212388272U/en active Active
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- 2021-03-11 WO PCT/CN2021/080135 patent/WO2021244092A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021244092A1 (en) * | 2020-06-05 | 2021-12-09 | 中铁上海工程局集团有限公司 | Steel rail weld seam full-section milling and grinding machine and operating vehicle |
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| WO2021244092A1 (en) | 2021-12-09 |
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