CN110952404A - Deflection upper drive sand belt type steel rail grinding device - Google Patents
Deflection upper drive sand belt type steel rail grinding device Download PDFInfo
- Publication number
- CN110952404A CN110952404A CN201911416153.3A CN201911416153A CN110952404A CN 110952404 A CN110952404 A CN 110952404A CN 201911416153 A CN201911416153 A CN 201911416153A CN 110952404 A CN110952404 A CN 110952404A
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- Prior art keywords
- deflection
- vertical
- motion
- motor
- wheel
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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
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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
- E01B31/175—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding using grinding belts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides a deflection upper drive sand belt type steel rail polishing device. The device comprises an abrasive belt wheel train structure, a transverse motion structure, a vertical motion structure and a deflection motion structure, wherein the transverse motion structure, the vertical motion structure and the deflection motion structure are connected with the abrasive belt wheel train structure; the abrasive belt wheel train structure drives an abrasive belt to perform grinding operation on a steel rail through a driving motor, a driving wheel and a contact wheel; the vertical motion structure drives the abrasive belt wheel train structure to move vertically through the vertical guide pillar and the vertical electric push rod; the deflection motion structure drives the abrasive belt wheel train structure to perform deflection motion through a deflection motor, a gear and a rack; the transverse motion structure drives the abrasive belt wheel train structure to move transversely through a transverse electric screw rod and a transverse motor. The device fully considers the technical characteristics of a belt grinding mode for rail grinding, and the deflection motion driving structure is arranged at the top of the grinding unit, so that the rigidity of the whole deflection of the grinding device is improved, and the grinding efficiency and the grinding quality are improved.
Description
Technical Field
The invention relates to the technical field of rail grinding, in particular to a deflection upper-drive sand belt type rail grinding device.
Background
With the rapid development of the rail transit industry in China in recent years, the laying mileage of the steel rails is increased year by year, and meanwhile, diversified rail transit modes present a development trend of head-to-head progression, such as: high-speed rail, ordinary rail, heavy load, light rail, subway, rail and the like, and the number of turnout field areas and groups is increasing continuously. The long-time repeated grinding of the wheel pair can cause the surface of the steel rail to be damaged in various forms such as wave-shaped abrasion, fat edge, block falling, fish scale lines, joint collapse and the like, and the grinding technology is a globally accepted only effective means capable of removing the steel rail damage.
At present, grinding wheels and milling cutters are mainly used as tools for grinding steel rails, the steel rails are limited by the self performance and grinding mode of grinding tools, and the grinding operation process has the characteristics of low efficiency, high cost and the like. The abrasive belt grinding is a newly proposed high-efficiency and low-cost steel rail grinding maintenance method, a grinding unit is a core structure of the whole abrasive belt grinding equipment, whether the mechanism of the grinding unit is reasonable or not directly influences the practical application performance of the method, and the steel rail grinding unit needs to meet the motion of three degrees of freedom of vertical, horizontal and deflection and simultaneously meets the action requirements of abrasive belt tensioning, pressurization, driving and the like according to the grinding requirement of the steel rail profile, so that how to combine the profile grinding requirement and the abrasive belt grinding motion characteristic, and the development of the abrasive belt grinding unit which is reasonable in layout and high in applicability is a problem to be solved urgently.
Disclosure of Invention
The embodiment of the invention provides a deflection upper-drive sand belt type steel rail grinding device, which can increase the rigidity of an operation device in a grinding process, and further improve the grinding efficiency and quality of a sand belt type steel rail.
In order to achieve the purpose, the invention adopts the following technical scheme.
A deflection top drive abrasive belted rail grinding apparatus comprising:
the device comprises an abrasive belt wheel train structure, and a transverse motion structure, a vertical motion structure and a deflection motion structure which are connected with the abrasive belt wheel train structure, wherein the deflection motion structure is arranged at the top of the device;
the abrasive belt wheel train structure drives an abrasive belt to perform grinding operation on a steel rail through a driving motor, a driving wheel and a contact wheel; the vertical motion structure drives the abrasive belt wheel train structure to move vertically through a vertical guide pillar and a vertical electric push rod; the deflection motion structure drives the abrasive belt wheel train structure to perform deflection motion through a deflection motor, a gear and a rack; the transverse motion structure drives the abrasive belt wheel train structure to move transversely through a transverse electric screw rod and a transverse motor.
Preferably, the abrasive belt wheel train structure comprises a driving motor, a coupler, a driving wheel shaft, a bearing seat, a driving wheel, a tension wheel, a contact wheel and a wheel train mounting plate;
the driving wheel is fixedly arranged on the wheel train mounting plate through a driving wheel shaft, a bearing and a bearing seat, the driving wheel shaft is connected with a driving motor through a coupler, and the driving motor is fixedly arranged on the wheel train mounting plate through a motor mounting frame; the tensioning wheel is connected to the gear train mounting plate through a tensioning structure component, and the contact wheel is mounted on the gear train mounting plate through a contact wheel shaft; the driving wheel, the tensioning wheel and the contact wheel are linked through an abrasive belt, the driving motor drives the driving wheel shaft and the driving wheel to move through the coupler, the driving wheel drives the contact wheel to move, and the contact wheel drives the abrasive belt to polish the steel rail.
Preferably, the vertical motion structure comprises a vertical guide pillar and a vertical electric push rod;
in the vertical movement of the deflection upper-drive sand belt type steel rail grinding device, a gear train mounting plate is connected with a vertical guide pillar through a sliding bearing component, a rod extending end of a vertical electric push rod is connected with the gear train mounting plate through a vertical movement head hinged structure, and a cylinder body tail part of the vertical electric push rod is connected with a vertical movement support through a vertical movement tail part hinged structure; the two vertical guide columns are fixedly connected through the cross beam, so that the vertical motion structure forms a whole.
Preferably, the locking function of the vertical movement of the device is realized by carrying a locking screw and a locking nut through a locking stepping motor, the locking stepping motor is connected with the wheel train mounting plate through a mounting base and vertically moves together with the abrasive belt wheel train structure, after the vertical movement of the device reaches a designated position, the locking stepping motor acts to drive the locking screw to rotate, the vertical guide pillar is compressed through pressure generated by rotation, and the position locking function of the vertical movement is realized.
Preferably, the deflection motion structure comprises a deflection motor, a deflection motor bracket, a gear and a rack;
in the deflection motion of the deflection upper-drive sand belt type steel rail grinding device, a deflection motion structure, a sand belt wheel train structure and a vertical motion structure deflect, the deflection center of the deflection motion is arranged at the lower end of a vertical guide pillar, the vertical guide pillar is connected with a deflection hinged support seat through a deflection shaft, deflection drive is provided by a deflection motor, and the deflection motor is arranged on a cross beam of the vertical motion guide pillar through a deflection motor support;
the rack is fixedly connected to the main body frame, the gear is connected with the deflection motor, the gear is meshed with the rack, when the deflection motor drives the gear to rotate, the deflection motor together with the cross beam, the vertical guide pillar and the abrasive belt wheel system structure deflects to a preset angle, the rack is kept still in the deflection process, and the vertical moving part rotates by taking the deflection shaft as the center.
Preferably, the transverse moving structure comprises a transverse electric push rod, a horizontal support plate, a slide block and a horizontal guide rail;
in the horizontal motion of the deflection upper-driving type abrasive belt steel rail polishing device, a driving force is provided by a transverse electric push rod, the front end of the transverse electric push rod is connected to a horizontal support plate, the tail part of the transverse electric push rod is fixedly connected with a vehicle body frame of the device, the horizontal support plate is connected with a sliding block, a deflection hinged support seat and a main body frame are fixedly connected in the horizontal support plate, and the horizontal electric push rod drives the main body frame to provide horizontal motion force for the polishing device through the horizontal support plate.
According to the technical scheme provided by the embodiment of the invention, the structure of the deflection upper driving type abrasive belt grinding unit comprises a horizontal, vertical and deflection motion realizing structure, the technical characteristics of an abrasive belt grinding mode for rail grinding are fully considered, the deflection motion driving structure is arranged at the top of the grinding unit, the integral deflection rigidity of the grinding unit is improved, all operation modes are driven by an electric mode, the grinding efficiency and the grinding quality are improved, and the guarantee of a mechanical mechanism is provided for exerting the technical advantages of abrasive belt grinding for rail grinding.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of the general structure of a deflection upper-drive sand-belt type rail grinding device according to an embodiment of the present invention;
FIG. 2 is a side view of a deflection top drive sand belt rail grinding apparatus according to an embodiment of the present invention;
fig. 3a and fig. 3b are schematic connection diagrams of a driving device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of locking vertical movement according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking several specific embodiments as examples in conjunction with the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.
In order to solve the problems and application requirements in the background art, the embodiment of the invention provides a deflection upper driving type abrasive belt polishing unit structure, which comprises a horizontal, vertical and deflection motion realizing structure, the structure fully considers the technical characteristics of an abrasive belt grinding mode for rail polishing, the deflection motion driving structure is arranged at the top of a polishing unit, the integral deflection rigidity of the polishing unit is improved, all operation modes are driven by an electric mode, the polishing efficiency and the polishing quality are improved, and the guarantee of a mechanical mechanism is provided for exerting the technical advantages of abrasive belt grinding for rail polishing.
The general structural schematic diagram of the deflection upper-drive sand-belt type steel rail grinding device provided by the embodiment of the invention is shown in fig. 1, and the side view is shown in fig. 2. The device comprises an abrasive belt wheel train structure, and a transverse motion structure, a vertical motion structure and a deflection motion structure which are connected with the abrasive belt wheel train structure, wherein the deflection motion structure is arranged at the top of the device; the device also comprises a locking mechanism which moves vertically.
The abrasive belt wheel train structure drives an abrasive belt to perform grinding operation on a steel rail through a driving motor, a driving wheel and a contact wheel; the vertical motion structure drives the abrasive belt wheel train structure to move vertically through a vertical guide pillar and a vertical electric push rod; the deflection motion structure drives the abrasive belt wheel train structure to perform deflection motion through a deflection motor, a gear and a rack; the transverse motion structure drives the abrasive belt wheel train structure to move transversely through a transverse electric screw rod and a transverse motor.
The abrasive belt wheel train structure comprises a driving motor 11, a coupler 24, a driving wheel shaft 27, a bearing 25, a bearing seat 23, a driving wheel 15, a tension wheel 17, a contact wheel 16 and the like, and a wheel train mounting plate 4 for bearing the abrasive belt wheel train structure, wherein the driving wheel 15, the driving motor 11, the contact wheel 16 and the tension wheel 17 of the abrasive belt wheel train structure are mounted with the wheel train mounting plate 4 at corresponding positions.
Fig. 3a and fig. 3b are schematic connection diagrams of a driving device according to an embodiment of the present invention. The driving wheel 15 is fixedly arranged on the wheel train mounting plate 4 through a driving wheel shaft 27, a bearing 25 and a bearing seat 23, the driving wheel shaft 27 is connected with the driving motor 11 through a coupler 24, and the driving motor 11 is fixedly arranged on the wheel train mounting plate 4 through a motor mounting frame 20; the tension wheel 17 is connected to the gear train mounting plate 4 through a tension structure component, and the contact wheel 16 is mounted on the gear train mounting plate 4 through a contact wheel shaft. The driving wheel 15, the tension wheel 17 and the contact wheel 16 form an abrasive belt wheel train structure to rotate, the driving motor 11 drives the driving wheel shaft and the driving wheel 15 to move through the coupler 24, the driving wheel 15 drives the contact wheel 16 to move, and the contact wheel 16 drives an abrasive belt to polish the steel rail.
In the vertical movement of the deflection upper-drive sand belt type steel rail grinding device, the wheel train mounting plate 4 is connected with the vertical guide pillar 6 through a sliding bearing component, wherein the vertical movement is realized by the vertical electric push rod 21, the rod extending end of the vertical electric push rod 21 is connected with the wheel train mounting plate 4 through a vertical movement head hinging structure, the cylinder body tail part of the vertical electric push rod 21 is connected with the vertical movement support through a vertical movement tail hinging structure, and the components form the realizing elements of the vertical movement.
The vertical motion is realized by two vertical guide pillars 6, and the two vertical guide pillars 6 are fixedly connected through a cross beam 12, so that the vertical motion part forms a whole.
Fig. 4 is a schematic diagram of locking vertical movement according to an embodiment of the present invention. The vertical movement has a position locking function, the function is realized by a locking stepping motor 13 carrying a locking screw 33 and a locking nut, the locking stepping motor 13 is connected with a wheel train mounting plate 4 through a mounting base and can vertically move together with an abrasive belt wheel train structure, after reaching a designated position, the locking stepping motor 13 acts to drive the locking screw 33 to rotate, and the vertical guide pillar 6 is compressed through pressure generated by rotation, so that the position locking function of the vertical movement is realized.
In the deflection motion of the deflection upper-drive sand belt type steel rail grinding device, all parts of vertical motion, such as a sand belt wheel train structure, a wheel train mounting plate 4, a vertical guide pillar 6, a locking stepping motor 13 and the like, deflect, the deflection center of the components is arranged at the lower end of the vertical guide pillar 6, the vertical guide pillar 6 is connected with a deflection hinged support seat through a deflection shaft, deflection drive is provided by a deflection motor 2, and the deflection motor 2 is arranged on a cross beam 12 of the vertical motion guide pillar 6 through a deflection motor support 14.
The deflection motion is realized by a deflection motor 2, a deflection motor bracket 14, a gear 19 and a rack 18, the rack 18 is fixedly connected on the main body frame 3, the gear 19 is connected with the deflection motor 2, the gear 19 is meshed with the rack 18, when the deflection motor 2 drives the gear 18 to rotate, the deflection motor 2, the cross beam 12, the vertical guide post 6, the abrasive belt wheel train and the like deflect to a preset angle together, in the deflection process, the rack 18 is kept still, and the vertical moving part rotates by taking a deflection shaft as a center.
In the horizontal movement of the deflection upper-driving type sand-belt steel rail grinding device, the transverse electric push rod 22 provides driving force, the front end of the transverse electric push rod 22 is connected to the horizontal supporting plate 7, the tail part of the transverse electric push rod 22 is fixedly connected with the grinding vehicle body frame 3, the horizontal supporting plate 7 is connected with the sliding block 9, and the sliding block 9 and the horizontal guide rail 8 jointly realize the horizontal movement of the grinding unit.
In the horizontal motion process is realized to the sand belt rail grinding device that drives on deflecting, the articulated supporting seat of device's deflection and main body frame 3 fixed connection lie in horizontal support plate 7, and horizontal electric putter 21 drives main body frame 3 through horizontal support plate 7 and provides the horizontal motion power for grinding device promptly.
In summary, the deflection upper-drive sand-belt type steel rail grinding device provided by the embodiment of the invention has the following beneficial effects:
(1) the driving force application point of the deflection motion is positioned at the top end of the polishing device, so that the rigidity of the whole polishing device is improved;
(2) the vertical moving part is attached with a locking device, when the vertical moving part moves to the position of an operating point, the locking device can lock the vertical movement, and the influence of polishing vibration on the performance of the vertical electric push rod is reduced;
(3) the driving motor is directly connected with the driving wheel, and the driving wheel is stressed and supported by the wheel train mounting plate, so that the motor only transmits driving torque, other loads of the motor are reduced to the maximum extent, and a transmission chain is shortened;
(4) the grinding device fully considers the cantilever structure characteristic in the abrasive belt grinding characteristic, the rigidity of the system is increased in the design of a plurality of components, and the structural guarantee is provided for fully exerting the abrasive belt grinding advantage in the steel rail grinding application.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a sand belt rail grinding device drives on deflecting which characterized in that includes:
the device comprises an abrasive belt wheel train structure, and a transverse motion structure, a vertical motion structure and a deflection motion structure which are connected with the abrasive belt wheel train structure, wherein the deflection motion structure is arranged at the top of the device;
the abrasive belt wheel train structure drives an abrasive belt to perform grinding operation on a steel rail through a driving motor, a driving wheel and a contact wheel; the vertical motion structure drives the abrasive belt wheel train structure to move vertically through a vertical guide pillar and a vertical electric push rod; the deflection motion structure drives the abrasive belt wheel train structure to perform deflection motion through a deflection motor, a gear and a rack; the transverse motion structure drives the abrasive belt wheel train structure to move transversely through a transverse electric screw rod and a transverse motor.
2. The apparatus of claim 1, wherein the belt train structure comprises a drive motor, a coupling, a drive axle, a bearing seat, a drive wheel, a tension wheel, a contact wheel, and a train mounting plate;
the driving wheel is fixedly arranged on the wheel train mounting plate through a driving wheel shaft, a bearing and a bearing seat, the driving wheel shaft is connected with a driving motor through a coupler, and the driving motor is fixedly arranged on the wheel train mounting plate through a motor mounting frame; the tensioning wheel is connected to the gear train mounting plate through a tensioning structure component, and the contact wheel is mounted on the gear train mounting plate through a contact wheel shaft; the driving wheel, the tensioning wheel and the contact wheel are linked through an abrasive belt, the driving motor drives the driving wheel shaft and the driving wheel to move through the coupler, the driving wheel drives the contact wheel to move, and the contact wheel drives the abrasive belt to polish the steel rail.
3. The device of claim 1, wherein the vertical motion structure comprises a vertical guide post, a vertical electric push rod;
in the vertical movement of the deflection upper-drive sand belt type steel rail grinding device, a gear train mounting plate is connected with a vertical guide pillar through a sliding bearing component, a rod extending end of a vertical electric push rod is connected with the gear train mounting plate through a vertical movement head hinged structure, and a cylinder body tail part of the vertical electric push rod is connected with a vertical movement support through a vertical movement tail part hinged structure; the two vertical guide columns are fixedly connected through the cross beam, so that the vertical motion structure forms a whole.
4. The device as claimed in claim 3, wherein the locking function of the vertical movement of the device is realized by a locking stepping motor carrying a locking screw and a locking nut, the locking stepping motor is connected with the wheel train mounting plate through a mounting base and vertically moves together with the abrasive belt wheel train structure, after the vertical movement of the device reaches a designated position, the locking stepping motor acts to drive the locking screw to rotate, and the vertical guide post is compressed by the pressure generated by the rotation to realize the position locking function of the vertical movement.
5. The apparatus of claim 1, wherein the yaw motion mechanism comprises a yaw motor, a yaw motor bracket, a gear and a rack;
in the deflection motion of the deflection upper-drive sand belt type steel rail grinding device, a deflection motion structure, a sand belt wheel train structure and a vertical motion structure deflect, the deflection center of the deflection motion is arranged at the lower end of a vertical guide pillar, the vertical guide pillar is connected with a deflection hinged support seat through a deflection shaft, deflection drive is provided by a deflection motor, and the deflection motor is arranged on a cross beam of the vertical motion guide pillar through a deflection motor support;
the rack is fixedly connected to the main body frame, the gear is connected with the deflection motor, the gear is meshed with the rack, when the deflection motor drives the gear to rotate, the deflection motor together with the cross beam, the vertical guide pillar and the abrasive belt wheel system structure deflects to a preset angle, the rack is kept still in the deflection process, and the vertical moving part rotates by taking the deflection shaft as the center.
6. The device of claim 1, wherein the lateral movement structure comprises a lateral electric push rod, a horizontal support plate, a slide block and a horizontal guide rail;
in the horizontal motion of the deflection upper-driving type abrasive belt steel rail polishing device, a driving force is provided by a transverse electric push rod, the front end of the transverse electric push rod is connected to a horizontal support plate, the tail part of the transverse electric push rod is fixedly connected with a vehicle body frame of the device, the horizontal support plate is connected with a sliding block, a deflection hinged support seat and a main body frame are fixedly connected in the horizontal support plate, and the horizontal electric push rod drives the main body frame to provide horizontal motion force for the polishing device through the horizontal support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416153.3A CN110952404A (en) | 2019-12-31 | 2019-12-31 | Deflection upper drive sand belt type steel rail grinding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416153.3A CN110952404A (en) | 2019-12-31 | 2019-12-31 | Deflection upper drive sand belt type steel rail grinding device |
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| Publication Number | Publication Date |
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| CN110952404A true CN110952404A (en) | 2020-04-03 |
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| CN201911416153.3A Pending CN110952404A (en) | 2019-12-31 | 2019-12-31 | Deflection upper drive sand belt type steel rail grinding device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355960A (en) * | 2021-06-07 | 2021-09-07 | 北京交通大学 | Self-driven intelligent abrasive belt grinding machine |
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2019
- 2019-12-31 CN CN201911416153.3A patent/CN110952404A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355960A (en) * | 2021-06-07 | 2021-09-07 | 北京交通大学 | Self-driven intelligent abrasive belt grinding machine |
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