Portable intelligent steel rail milling equipment and method

Abstract

The invention provides portable intelligent steel rail milling equipment and a method thereof. The portable intelligent steel rail milling equipment is used as rail traffic equipment for maintaining steel rails. The portable intelligent steel rail milling equipment comprises a frame, a feeding mechanism and an operating mechanism, wherein the frame is provided with two first positioning wheels and a second positioning wheel, the two first positioning wheels are used for being connected with one steel rail to be machined in the two parallel steel rails, and the second positioning wheel is used for being connected with the other steel rail. The operation mechanism is provided with a ball milling cutter extending downwards, the feeding mechanism is used for driving the operation mechanism and the ball milling cutter to move in the X direction, the Y direction and the Z direction, manual control over movement of the ball milling cutter is replaced, and therefore the steel rail can be milled automatically, the labor intensity of public work personnel is relieved, the operation efficiency is improved, and dust pollution is avoided. The occupational health of personnel is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit equipment industry, and particularly to a portable intelligent rail milling equipment and method for maintaining rails. Background Art

[0002] In high-speed railways or urban rail transit, large milling and grinding vehicles or grinding vehicles are mainly used for grinding and maintaining rails during the daily maintenance work of rails. However, when encountering local and small-scale rail diseases, such as high joints of welds, turnouts and other working conditions, the advantages of using large maintenance equipment for construction operations are not obvious, and it is more suitable to use small equipment for precise disease elimination.

[0003] Currently, hand-pushed small grinding machines are mostly used in the market to deal with local and small-scale rail diseases. The processing of rails completely depends on the experience and techniques of operators, resulting in high labor intensity, low accuracy of the rail surface profile after grinding, low efficiency, low degree of intelligence, and risks such as occupational health hazards caused by the generated dust. Therefore, there is an urgent need to manufacture a rail transit maintenance equipment that can automatically mill (mill and repair) rails when maintaining urban rails or high-speed railway rails, so as to reduce the labor intensity of railway maintenance personnel, improve the accuracy of the rail surface profile after milling, and improve the operation efficiency. Summary of the Invention

[0004] In view of the above problems of the prior art, the present application provides a portable intelligent rail milling equipment, which can automatically mill (mill and repair) rails to reduce the labor intensity of railway maintenance personnel, improve the accuracy of the rail surface profile after milling, and improve the operation efficiency.

[0005] To achieve the above object, the first aspect of the present application provides a portable intelligent rail milling equipment, including: a frame, the frame having two first positioning wheels and one second positioning wheel, the two first positioning wheels being used to connect with one of the two parallel rails to be processed, the second positioning wheel being used to connect with the other rail, and the two first positioning wheels and the one second positioning wheel being arranged in a triangular configuration; an operating mechanism, the operating mechanism being arranged on the third mounting bracket and having a ball mill cutter extending downward; a feeding mechanism, the feeding mechanism being arranged on the frame and used to drive the operating mechanism to move in the X direction, Y direction, and Z direction, the X direction being the extending direction of the rail, the Y direction being perpendicular to the X direction, the plane where the X direction and the Y direction are located being parallel to the plane where the rail is located, and the Z direction being perpendicular to the X direction and the Y direction.

[0006] As described above, the working mechanism and the ball milling cutter can be driven by the feeding mechanism to move in the X, Y, and Z directions. Thus, the movement of the ball milling cutter can be controlled instead of manually, so that the rail can be milled intelligently and automatically, reducing the labor intensity of the maintenance personnel and improving the operation efficiency. Moreover, by using the feeding mechanism to control the movement of the ball milling cutter instead of manually, the stability of the ball milling cutter during movement can also be improved, thereby improving the accuracy of the rail surface profile after milling.

[0007] At the same time, by connecting the first positioning wheel and the second positioning wheel to the rail, the portable intelligent rail milling equipment and the ball milling cutter can be positioned in the Z direction (vertical direction) through the cooperation between the first positioning wheel, the second positioning wheel, and the rail. Since the vehicle frame is arranged on two parallel rails through two first positioning wheels and one second positioning wheel, a triangular support structure can be formed, which can not only improve the stability of the vehicle frame but also ensure that the plane where the X and Y directions are located is parallel to the plane where the rail is located. Thus, the positioning accuracy of the vehicle frame and the ball milling cutter can be improved, facilitating the confirmation of the machining reference of the ball milling cutter and the establishment of the machining coordinate system, and improving the machining accuracy.

[0008] In addition, by connecting the two first positioning wheels to the rail to be machined, when the feeding mechanism drives the working mechanism and the ball milling cutter to machine the rail to be machined, and the center of gravity of the portable intelligent rail milling equipment shifts towards the side of the rail to be machined, the stability of the portable intelligent rail milling equipment can be improved through the two first positioning wheels.

[0009] As a possible implementation manner of the first aspect, the outer peripheral surface of the first positioning wheel is used to abut against the top of the rail head of the rail, and the first positioning wheel has a rim protruding from the outer peripheral surface of the first positioning wheel, and the rim is used to abut against the first side surface of the rail head.

[0010] As described above, by making the outer peripheral surface of the first positioning wheel abut against the top of the rail head, the portable intelligent rail milling equipment and the ball milling cutter can be positioned in the Z direction (the direction perpendicular to the plane where the rail is located). By making the rim abut against the side surface of the rail head, the portable intelligent rail milling equipment and the ball milling cutter can be positioned in the Y direction (the direction perpendicular to the rail on the plane where the rail is located). Thus, the accuracy of the machining reference of the ball milling cutter can be improved, thereby improving the accuracy of the ball milling cutter for milling the rail.

[0011] As a possible implementation manner of the first aspect, the vehicle frame further includes a first clamping member and / or a second clamping member. The first clamping member is located on the side of the rail facing away from the rim and is used to abut against the side of the rail facing away from the rim, and the second clamping member is used to abut against the bottom surface of the rail head.

[0012] As described above, by abutting the first clamping member against the side of the rail opposite to the flange, the rail can be clamped and fixed in the Y direction through the cooperation between the first clamping member and the flange, thereby improving the stability of the portable intelligent rail milling equipment and the ball milling cutter in the Y direction. By abutting the second clamping member against the bottom surface of the rail head, the rail can be clamped and fixed in the Z direction through the cooperation between the second clamping member and the positioning wheel, thereby improving the stability of the portable intelligent rail milling equipment and the ball milling cutter in the Z direction. Thus, the accuracy of the ball milling cutter for milling the rail can be improved.

[0013] As a possible implementation of the first aspect, a V-shaped notch is provided on the first clamping member, one side surface of the notch is in contact with the second side surface of the rail head, and the other side surface is in contact with the bottom surface of the rail head.

[0014] As described above, by providing a V-shaped notch on the first clamping member and making one side surface of the notch in contact with the second side surface of the rail head, the rail can be clamped and fixed in the Y direction through the cooperation between the first clamping member and the flange. By making the other side surface of the notch in contact with the bottom surface of the rail head, the rail can be clamped and fixed in the Y direction through the cooperation between the first clamping member and the positioning wheel. Thus, the stable fixation of the machining reference can be achieved, the accuracy of the machining reference of the ball milling cutter can be improved, and the accuracy of the ball milling cutter for milling the rail can be improved.

[0015] As a possible implementation of the first aspect, the feeding mechanism includes a first moving mechanism, a second moving mechanism and a third moving mechanism. The first moving mechanism has a first mounting bracket slidably connected to the vehicle frame along the X direction, and the first moving mechanism drives the first mounting bracket to slide along the X direction; the second moving mechanism has a second mounting bracket slidably connected to the first mounting bracket along the Y direction, and drives the second mounting bracket to slide along the Y direction; the third moving mechanism has a third mounting bracket slidably connected to the second mounting bracket along the Z direction, and drives the third mounting bracket to slide along the Z direction, and the working mechanism is arranged on the third mounting bracket.

[0016] As described above, the specific structures of the first moving mechanism, the second moving mechanism and the third moving mechanism for driving the working mechanism and the ball milling cutter to move in the X, Y, and Z directions are provided. The equipment structure can be simplified and the equipment weight can be reduced. During use, it can be carried by 3-4 people to realize the transfer between the subway platform and the railway track area.

[0017] As a possible implementation of the first aspect, the portable intelligent rail milling device further includes: a detection sensor, which is installed on the working mechanism or the third mounting bracket to detect the surface data of the rail; a controller, which controls the first moving mechanism, the second moving mechanism and the third moving mechanism to drive the ball mill to move according to the surface data.

[0018] From the above, the controller can control the movement of the ball mill according to the surface data of the rail detected by the detection sensor, so as to automatically mill the surface of the rail. Thus, the automation degree of the portable intelligent rail milling device can be improved, and the precision of the ball mill for milling the rail can be improved.

[0019] As a possible implementation of the first aspect, the portable intelligent rail milling device further includes: a collection mechanism, which is used to collect the iron filings generated when the ball mill processes the rail.

[0020] From the above, by collecting the iron filings through the collection mechanism, the iron filings can be prevented from spilling and affecting the environment.

[0021] As a possible implementation of the first aspect, the collection mechanism has a magnetic member, and the magnetic member is arranged at a position near the ball mill.

[0022] From the above, by arranging a magnetic member near the ball mill, the iron filings can be adsorbed by the magnetic member. Thus, the structure of the collection mechanism can be simplified, so as to realize the miniaturization and light weight of the portable intelligent rail milling device, which is convenient for the operator to move and carry.

[0023] The second aspect of the present application provides a rail milling method, which uses the portable intelligent rail milling device described in any one of the first aspects of the present application to process the rail, including: obtaining the surface data of the rail, where the surface data includes at least one of the longitudinal corrugation data and the unevenness data of the rail; the controller generates the processing path trajectory of the ball mill according to the surface data; the feeding mechanism drives the ball mill to move along the processing path trajectory to process the rail.

[0024] From the above, the processing path trajectory of the ball mill can be generated through the surface data of the rail, and then the ball mill is controlled to process the rail along the processing path trajectory. Thus, the automation degree of the portable intelligent rail milling device can be improved, and the precision of the ball mill for milling the rail can be improved.

[0025] As a possible implementation of the second aspect, the rail milling method further includes: obtaining input data, where the input data includes at least one of the processing depth and the processing length; adjusting the processing path trajectory according to the input data.

[0026] As described above, the operator can adjust the machining path trajectory by inputting data. Thus, it is convenient for the operator to control the portable intelligent rail milling equipment, thereby improving the flexibility of the portable intelligent rail milling equipment.

[0027] These and other aspects of the present invention will become more readily apparent in the following description of the (multiple) embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following further describes the various features of the present invention and the relationships between the various features with reference to the accompanying drawings. The drawings are all exemplary. Some features are not shown in actual proportion, and in some drawings, conventional and non-essential features in the field related to the present application may be omitted, or non-essential features for the present application may be additionally shown. The combination of the various features shown in the drawings is not intended to limit the present application. In addition, throughout the present specification, the content referred to by the same reference numerals is also the same. The specific description of the drawings is as follows:

[0029] Figure 1 is a schematic three-dimensional structure diagram of the portable intelligent rail milling equipment in the present application;

[0030] Figure 2 is Figure 1 a schematic three-dimensional structure diagram of the working mechanism in Figure 3 is Figure 1 a schematic partial front projection structure diagram of the portable intelligent rail milling equipment in the X direction in

[0031] Figure 4 is one of the flowcharts of the rail milling method in the present application;

[0032] Figure 5 is the second flowchart of the rail milling method in the present application.

[0033] DESCRIPTION OF REFERENCE NUMERALS

[0034] 10 Portable intelligent rail milling equipment; 100 Frame; 110 First positioning wheel; 120 Second positioning wheel; 130 First wheel flange; 140 First clamping member; 150 Second clamping member; 160 Caliper; 170 Second wheel flange 170; 200 First moving mechanism; 210 First mounting bracket; 220 First slide rail; 230 First driving motor; 300 Second moving mechanism; 310 Second mounting bracket; 320 Second slide rail; 330 Second driving motor; 400 Third moving mechanism; 410 Third mounting bracket; 420 Third slide rail; 430 Third driving motor; 500 Working mechanism; 510 Fourth driving motor; 520 Ball milling cutter; 600 Detection sensor; 710 Control panel; 720 Battery; 20 Rail; 21 Rail head. Detailed implementation manners

[0035] Terms such as "first", "second", "third", etc. or similar terms like module A, module B, module C, etc. in the description and claims are only used to distinguish similar objects and do not represent a specific order for the objects. Understandably, the specific order or sequence can be interchanged when permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0036] In the following description, the reference numerals representing steps, such as S110, S120... etc., do not necessarily mean that the steps will be executed in this order. The order of the front and back steps can be interchanged when permitted, or they can be executed simultaneously.

[0037] The term "comprising" used in the description and claims should not be construed as being limited to the content listed thereafter; it does not exclude other elements or steps. Therefore, it should be construed as specifying the presence of the recited features, wholes, steps, or components, but does not exclude the presence or addition of one or more other features, wholes, steps, or components and their groups. Thus, the expression "a device comprising device A and B" should not be limited to a device consisting only of components A and B.

[0038] "An embodiment" or "embodiments" mentioned in this specification means that the specific features, structures, or characteristics described in connection with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases "in an embodiment" or "in embodiments" that appear throughout this specification do not necessarily all refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the various specific features, structures, or characteristics can be combined in any suitable manner, as will be apparent to those of ordinary skill in the art from this disclosure.

[0039] Next, with reference to the drawings, exemplary descriptions will be made of possible embodiments of the portable intelligent rail milling equipment 10 in the present application.

[0040] Figure 1 is a three-dimensional structural schematic diagram of the portable intelligent rail milling equipment 10 in the present application; Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the working mechanism 500 in Figure 1 , Figure 2As shown in the figure, the portable intelligent rail milling equipment 10 in the present application includes a vehicle frame 100, a feeding mechanism, and a working mechanism 500. Among them, the vehicle frame 100 has two first positioning wheels 110 and one second positioning wheel 120. The two first positioning wheels 110 are used to connect to one of the two parallel rails 20 to be processed, and the second positioning wheel 120 is used to connect to the other rail 20. The two first positioning wheels 110 and one second positioning wheel 120 are arranged in a triangular configuration. The working mechanism 500 is arranged on the vehicle frame 100 and has a ball milling cutter 520 extending downward. The feeding mechanism is arranged on the vehicle frame 100 and is used to drive the working mechanism 500 to move in the X direction, Y direction, and Z direction. The X direction is the extending direction of the rail 20, the Y direction is perpendicular to the X direction, the plane where the X direction and the Y direction are located is parallel to the plane where the rail 20 is located, and the Z direction is perpendicular to the X direction and the Y direction. Here, the plane where the rail is located is usually the ground plane.

[0041] From the above, the feeding mechanism can drive the working mechanism 500 and the ball milling cutter 520 to move in the X direction, Y direction, and Z direction. Thus, it can replace manual control of the movement of the ball milling cutter 520, so that the rail 20 can be automatically milled, reducing the labor intensity of the track maintenance personnel and improving the operation efficiency. Moreover, by using the feeding mechanism to replace manual control of the movement of the ball milling cutter 520, the stability of the movement of the ball milling cutter 520 can also be improved, thereby improving the accuracy of the rail surface profile after milling.

[0042] At the same time, by connecting the first positioning wheel 110 and the second positioning wheel 120 to the rail 20, the portable intelligent rail milling equipment 10 and the ball milling cutter 520 can be positioned in the Z direction (vertical direction) through the cooperation between the first positioning wheel 110, the second positioning wheel 120, and the rail 20. Since the vehicle frame 100 is arranged on the two parallel rails 20 through two first positioning wheels 110 and one second positioning wheel 120, a triangular support structure can be formed, which can not only improve the stability of the vehicle frame 100 but also ensure that the plane where the X direction and the Y direction are located is parallel to the plane where the rail 20 is located. Thus, the positioning accuracy of the vehicle frame 100 and the ball milling cutter 520 can be improved, facilitating the confirmation of the processing reference of the ball milling cutter 520, facilitating the establishment of the processing coordinate system, and improving the processing accuracy.

[0043] In addition, by connecting the two first positioning wheels 110 to the rail 20 to be processed, when the feeding mechanism drives the working mechanism 500 and the ball milling cutter 520 to process the rail 20 to be processed and the center of gravity of the portable intelligent rail milling equipment 10 shifts towards the side of the rail 20 to be processed, the stability of the portable intelligent rail milling equipment 10 can be improved through the two first positioning wheels 110.

[0044] In addition, the first moving mechanism 200, the second moving mechanism 300, and the third moving mechanism 400 drive the working mechanism 500 and the ball milling cutter 520 to move in the X, Y, and Z directions. It is also possible to simplify the device structure and reduce the device weight, so that during use, it can be carried by 3 - 4 people to achieve transfer between subway platforms or railway track areas.

[0045] Figure 3 For Figure 1 is a schematic diagram of the partial front projection structure of the portable intelligent rail milling device 10 in the X direction. As Figure 3 shown, in some embodiments, the outer peripheral surface of the first positioning wheel 110 is used to abut against the top of the rail head 21 of the rail 20. The first positioning wheel 110 has a first rim 130 protruding from the outer peripheral surface of the first positioning wheel 110, and the first rim 130 is used to abut against the first side surface of the rail head 21 of the rail 20. Thus, by making the outer peripheral surface of the first positioning wheel 110 abut against the top of the rail head 21, the portable intelligent rail milling device 10 and the ball milling cutter 520 can be positioned in the Z direction (the direction perpendicular to the plane where the rail 20 is located). By making the first rim 130 abut against the side surface of the rail head 21, the portable intelligent rail milling device 10 and the ball milling cutter 520 can be positioned in the Y direction (the direction perpendicular to the plane where the rail 20 is located and perpendicular to the rail 20). Thereby, the accuracy of the machining reference of the ball milling cutter 520 can be improved, and thus the accuracy of the milling machining of the rail 20 by the ball milling cutter 520 can be improved.

[0046] In some embodiments, as Figure 3 shown, the vehicle frame 100 further includes a first clamping member 140 and / or a second clamping member 150. The first clamping member 140 is located on the side of the rail 20 opposite to the first rim 130 and is used to abut against the side of the rail 20 opposite to the first rim 130. The second clamping member 150 is used to abut against the bottom surface of the rail head 21. Thus, by making the first clamping member 140 abut against the side of the rail 20 opposite to the first rim 130, the rail 20 can be clamped and fixed in the Y direction through the cooperation between the first clamping member 140 and the first rim 130, thereby improving the stability of the portable intelligent rail milling device 10 and the ball milling cutter 520 in the Y direction. By making the second clamping member 150 abut against the bottom surface of the rail head 21, the rail 20 can be clamped and fixed in the Z direction through the cooperation between the second clamping member 150 and the first positioning wheel 110, thereby improving the stability of the portable intelligent rail milling device 10 and the ball milling cutter 520 in the Z direction. Thereby, the accuracy of the milling machining of the rail 20 by the ball milling cutter 520 can be improved.

[0047] In some embodiments, as Figure 3As shown, a V-shaped notch is provided on the first clamping member 140. One side surface of the notch is in contact with the second side surface of the rail head 21, and the other side surface is in contact with the bottom surface of the rail head 21. Thus, by providing a V-shaped notch on the first clamping member 140 and making one side surface of the notch in contact with the side surface of the rail head 21, the rail 20 can be clamped and fixed in the Y direction through the cooperation between the first clamping member 140 and the first wheel flange 130. By making the other side surface of the notch in contact with the bottom surface of the rail head 21, the rail 20 can be clamped and fixed in the Y direction through the cooperation between the first clamping member 140 and the first positioning wheel 110. Thus, stable fixation of the machining reference can be achieved, the accuracy of the machining reference of the ball milling cutter 520 can be improved, and the accuracy of the milling machining of the rail 20 by the ball milling cutter 520 can be improved.

[0048] In some embodiments, as Figure 1 shown, the feeding mechanism includes a first moving mechanism 200, a second moving mechanism 300 and a third moving mechanism 400. The first moving mechanism 200 has a first mounting frame 210 slidably connected to the vehicle frame 100 in the X direction, and the first moving mechanism 200 drives the first mounting frame 210 to slide in the X direction. The second moving mechanism 300 has a second mounting frame 310 slidably connected to the first mounting frame 210 in the Y direction, and drives the second mounting frame 310 to slide in the Y direction. The third moving mechanism 400 has a third mounting frame 410 slidably connected to the second mounting frame 310 in the Z direction, and drives the third mounting frame 410 to slide in the Z direction. The working mechanism 500 is arranged on the third mounting frame 410. Thus, a specific structure is provided for the first moving mechanism 200, the second moving mechanism 300 and the third moving mechanism 400 to drive the working mechanism 500 and the ball milling cutter 520 to move in the X, Y and Z directions. The equipment structure can be simplified and the equipment weight can be reduced. During use, it can be carried by 3-4 people to realize the transfer between the subway platform and the railway track area.

[0049] In some embodiments, as Figure 2 shown, the portable intelligent rail milling equipment 10 further includes a detection sensor 600. The detection sensor 600 is installed on the working mechanism 500 or the third mounting frame 410 to detect the surface data of the rail 20; a controller, and the controller controls the first moving mechanism 200, the second moving mechanism 300 and the third moving mechanism 400 to drive the ball milling cutter 520 to move according to the surface data. Thus, the controller can control the movement of the ball milling cutter 520 according to the surface data of the rail 20 detected by the detection sensor 600, so as to automatically mill the surface of the rail 20. Thus, the automation degree of the portable intelligent rail milling equipment 10 can be improved, and the accuracy of the milling machining of the rail 20 by the ball milling cutter 520 can be improved.

[0050] In some embodiments, the portable intelligent rail milling device 10 further includes a collection mechanism for collecting the iron filings generated when the ball milling cutter 520 mills the rail 20. Thus, by collecting the iron filings through the collection mechanism, it is possible to avoid the iron filings from spilling and affecting the environment.

[0051] In some embodiments, the collection mechanism has a magnetic member disposed near the ball milling cutter 520. Thus, by arranging the magnetic member near the ball milling cutter 520, the iron filings can be adsorbed by the magnetic member. Thereby, the structure of the collection mechanism can be simplified, so as to realize the miniaturization and light weight of the portable intelligent rail milling device 10, facilitating the operator to move and carry it.

[0052] In some embodiments, the collection mechanism is a vacuum cleaner, which can utilize negative pressure to suck the iron filings in the air.

[0053] This application also provides a rail milling method 80, which uses any one of the above-mentioned portable intelligent rail milling devices 10 in this application to process the rail 20. Next, with reference to the accompanying drawings, the specific steps of the rail milling method 80 in this application will be described in detail.

[0054] Figure 4 This is one of the flowcharts of the rail milling method 80 in this application. As Figure 4 shown, the specific steps of the rail milling method 80 in this application include:

[0055] Step S801, obtaining surface data.

[0056] In step S801, the surface data of the rail 20 is obtained, and the surface data includes at least one of the longitudinal corrugation data and the roughness data of the rail 20.

[0057] Step S802, generating a machining path.

[0058] In step S802, the controller generates the machining path trajectory of the ball milling cutter 520 according to the surface data.

[0059] Step S805, milling machining.

[0060] In step S805, the feed mechanism drives and controls the ball milling cutter 520 to move along the machining path trajectory to machine the rail 20.

[0061] As described above, the machining path trajectory of the ball milling cutter 520 can be generated based on the surface data of the rail 20, and then the ball milling cutter 520 is controlled to machine the rail 20 along the machining path trajectory. Thereby, the automation degree of the portable intelligent rail milling device 10 can be improved, and the precision of the ball milling cutter 520 for milling the rail 20 can be improved.

[0062] AsFigure 4 As shown, in some embodiments, the rail milling method 80 in the present application further includes:

[0063] Step S803: Obtain input data.

[0064] In step S803, obtain the input data input by the operator, where the input data includes at least one of the machining depth and the machining length.

[0065] Step S804: Adjust the machining path.

[0066] In step S804, adjust the machining path trajectory according to the input data.

[0067] Thus, the operator can adjust the machining path trajectory through the input data. Therefore, it is convenient for the operator to control the portable intelligent rail milling device 10, thereby improving the flexibility of the portable intelligent rail milling device 10.

[0068] The above content has made an exemplary description of the possible embodiments of the portable intelligent rail milling device 10 and the rail milling method 80. Next, in combination with the drawings, in specific embodiments, the specific structure of the portable intelligent rail milling device 10 will be described in detail.

[0069] As Figure 1 shown, the portable intelligent rail milling device 10 in the embodiment of the present application is a set of mechanical equipment for urban rail transit maintenance. It can not only detect, mill and repair rails intelligently and automatically, but also simplify the equipment structure, reduce the volume and mass of the equipment, thus facilitating the transfer and operation of the equipment. The portable intelligent rail milling device 10 includes a vehicle frame 100, a first moving mechanism 200, a second moving mechanism 300, a third moving mechanism 400 and an operating mechanism 500. Among them, the vehicle frame 100 is used to be fixed on two parallel rails 20 and can move along the rails 20. The operating mechanism 500 is arranged on the vehicle frame 100 and is used to mill (repair) the surface of the rail 20. The first moving mechanism 200, the second moving mechanism 300 and the third moving mechanism 400 are arranged on the vehicle frame 100. The first moving mechanism 200 is used to drive the operating mechanism 500 to move in the X direction, the second moving mechanism 300 is used to drive the operating mechanism 500 to move in the Y direction, and the third moving mechanism 400 is used to drive the operating mechanism 500 to move in the Z direction, and the X direction, the Y direction and the Z direction are perpendicular to each other.

[0070] As Figure 1 、 Figure 3As shown in the figure, the frame 100 includes a rotatable first positioning wheel 110 and a second positioning wheel 120. Among them, two first positioning wheels 110 are provided and located on a rail 20, and one second positioning wheel 120 is provided and located on another rail 20. The three are arranged in a triangular configuration. The second positioning wheel 120 is located at the corresponding middle position between the two first positioning wheels 110, so that the first positioning wheel 110 and the second positioning wheel 120 form an isosceles triangle structure, for example, to improve the stability of the frame 100 on the rail 20.

[0071] As Figure 1 , Figure 3 shown in the figure, the first positioning wheel 110 and the second positioning wheel 120 are both cylindrical as a whole. The outer peripheral surfaces of the cylindrical shapes are respectively in contact with the tops of the rail heads 21 of two parallel rails 20 and are in rolling connection with the rails 20. At both ends of the first positioning wheel 110, a first wheel rim 130 and a second wheel rim 170 are respectively provided. The first wheel rim 130 and the second wheel rim 170 are annular flanges protruding from the outer peripheral surfaces of the first positioning wheel 110 and the second positioning wheel 120. Among them, the first wheel rim 130 is located on the inner side of the rail 20. The first wheel rim 130 is provided with a positioning surface in the shape of a vertical plane on the side facing the corresponding rail 20 for contacting the inner side surface (the first side surface) of the rail head 21 of the rail 20 to be processed (milled and repaired). The second wheel rim 170 is located on the outer side of the rail 20. The size of the first wheel rim protruding from the outer peripheral surface of the first positioning wheel 110 is smaller than that of the first wheel rim 130.

[0072] After the portable intelligent rail milling device 10 is placed on the rail 20, the first positioning wheel 110 is located on one rail 20 to be processed, and the second positioning wheel 120 is located on another rail 20. The positioning surface on the first wheel rim 130 of the first positioning wheel 110 contacts the inner side surface (the first side surface) of the rail head 21 of the rail 20 to be processed. Specifically, after the outer peripheral surfaces of the first positioning wheel 110 and the second positioning wheel 120 contact the rail 20, the plane where the X direction and the Y direction are located can be made parallel to the plane where the rail 20 is located. By making the first wheel rims 130 of the two first positioning wheels 110 contact the inner side surfaces (the first side surfaces) of the rail heads 21 of the rails 20 to be processed, the X direction can be made parallel to the extending direction of the rail 20, and further the Y direction can be made perpendicular to the extending direction of the rail 20, and the Z direction can be made perpendicular to the plane where the two rails 20 are located. Thus, the portable intelligent rail milling device 10 can determine the reference for rail 20 processing and establish a processing coordinate system.

[0073] As Figure 3As shown, the frame 100 further includes a first clamping member 140 and a second clamping member 150. Among them, the first clamping member 140 and the second clamping member 150 are staggered with the first positioning wheel 110 in the length direction of the rail. The first clamping member 140 is located outside the rail 20, and the second clamping member 150 is located inside the rail 20. The first clamping member 140 and the second clamping member 150 are mounted on the frame 100 through a caliper 160, and the first clamping member 140 and the second clamping member 150 can be driven to approach or move away from the rail 20 by operating the caliper 160. In addition, there are two first clamping members 140 and two second clamping members 150 respectively. In the length direction of the rail, the two first positioning wheels 110 are located between the two first clamping members 140 and between the two second clamping members 150. In this way, the frame 100 can be stably positioned on the rail.

[0074] As Figure 3 shown, when the portable intelligent rail milling equipment 10 moves to a predetermined position, the first clamping member 140 can be driven by the caliper 160 to abut against the outer side surface of the rail 20, so that a firm connection is established between the first positioning wheel 110 and the rail 20. Specifically, a V-shaped notch is provided on the first clamping member 140. One side surface of the notch is in contact with the outer side surface (the second side surface) of the rail head 21, and the other side surface is in contact with the bottom surface of the rail head 21. Thus, through the cooperation between the first clamping member 140, the first positioning wheel 110, and the first wheel rim 130, the first positioning wheel 110 and the portable intelligent rail milling equipment 10 can be positioned and fixed, so that the first positioning wheel 110 and the rail 20 cannot move in the Y direction and the Z direction.

[0075] As Figure 3 shown, when the portable intelligent rail milling equipment 10 moves to a predetermined position, the second clamping member 150 can also be driven by the caliper 160 to abut against the inner side surface of the rail 20, so that a firm positioning connection is established between the first positioning wheel 110 and the rail 20. Specifically, the second clamping member 150 extends from the inner side of the rail 20 to the lower side of the rail head 21 of the rail 20 and abuts against the lower side surface of the rail head 21. Thus, through the cooperation between the second clamping member 150 and the first positioning wheel 110, the first positioning wheel 110 and the portable intelligent rail milling equipment 10 can be fixed, so that the first positioning wheel 110 and the rail 20 cannot move in the Z direction. In addition, through the firm connection between the first clamping member 140, the second clamping member 150, the first positioning wheel 110, and the first wheel rim 130, the positioning wheel and the portable intelligent rail milling equipment 10 cannot move along the X direction on the rail 20 under the action of friction, thereby improving the firmness and stability between the portable intelligent rail milling equipment 10 and the rail 20.

[0076] As Figure 1As shown, the first moving mechanism 200 includes a first mounting frame 210, a first slide rail 220 and a first driving motor 230. The first slide rail 220 is fixedly mounted on the frame 100 and extends along the X direction. The first mounting frame 210 is mounted on the first slide rail 220 and can slide on the first slide rail 220 along the X direction. The first driving motor 230 is fixedly mounted on the frame 100 and is transmission-connected to the first mounting frame 210 through a lead screw. The first mounting frame 210 can be driven to move on the first slide rail 220 by driving the lead screw to rotate. The length of the first slide rail 220 is 0.6-1 meters, so that the first mounting frame 210 and the ball milling cutter 520 described below can be moved along the rail 20 within a range of 0.6-1 meters to perform online shaping processing on the rail 20.

[0077] like Figure 1 As shown, the second moving mechanism 300 includes a second mounting frame 310, a second slide rail 320 and a second driving motor 330. The second slide rail 320 is fixedly mounted on the first mounting frame 210 and extends along the Y direction. The second mounting frame 310 is mounted on the second slide rail 320 and can slide on the second slide rail 320 along the Y direction. The second driving motor 330 is fixedly mounted on the first mounting frame 210 and is transmission-connected to the second mounting frame 310 through a lead screw. The second mounting frame 310 can be driven to move on the second slide rail 320 by driving the lead screw to rotate.

[0078] like Figure 1 As shown, the third moving mechanism 400 includes a third mounting frame 410, a third slide rail 420 and a third driving motor 430. The third slide rail 420 is fixedly mounted on the second mounting frame 310 and extends along the Z direction. The third mounting frame 410 is mounted on the third slide rail 420 and can slide along the Z direction on the third slide rail 420. The third driving motor 430 is fixedly mounted on the second mounting frame 310 and is transmission-connected to the third mounting frame 410 through a lead screw, and can drive the third mounting frame 410 to move on the third slide rail 420 by driving the lead screw to rotate.

[0079] like Figure 1 , Figure 2As shown, the operating mechanism 500 is installed on the third mounting frame 410, and the operating mechanism 500 includes a fourth drive motor 510 and a ball milling cutter 520. The ball milling cutter 520 extends vertically downward, and the fourth drive motor 510 is fixed on the third mounting frame 410, and is in transmission connection with the ball milling cutter 520, and can drive the ball milling cutter 520 to rotate. Thus, the ball milling cutter 520 can move along the X direction, the Y direction and the Z direction under the drive of the first moving mechanism 200, the second moving mechanism 300 and the third moving mechanism 400 to process the rail 20. That is, the first moving mechanism 200, the second moving mechanism 300 and the third moving mechanism 400 can replace the manual drive ball milling cutter 520 to process the rail 20 in the X direction, the Y direction and the Z direction. Thus, the stability during processing can be improved, so that a larger milling depth than manual drive can be used during processing, for example, the milling depth can be set to be more than 1 mm, thereby improving the processing efficiency.

[0080] like Figure 2 As shown, the portable intelligent rail milling device 10 further includes a detection sensor 600, which may be a laser distance sensor or other device suitable for detecting the surface hub and shape of the rail 20. The detection sensor 600 is mounted on the third mounting frame 410, located near the ball milling cutter 520, and can detect surface data such as longitudinal corrugation data and unevenness data of the rail 20.

[0081] The portable intelligent rail milling device 10 also includes a controller, in which a plurality of model programs are pre-set, and different model programs correspond to different rail conditions of the rail 20. Specifically, different model programs can be set according to the straight or curved state of the rail 20, or different levels of model programs can be set according to the precision requirements of the processing. The controller can also automatically plan the processing path trajectory of the rail 20 according to the surface data of the rail 20 detected by the detection sensor 600, and control the first moving mechanism 200, the second moving mechanism 300 and the third moving mechanism 400 to drive the ball milling cutter 520 to move along the processing path trajectory, and perform milling processing on the rail 20 according to the preset processing profile. In this way, automatic and intelligent processing of the rail 20 can be realized. Through the intelligent planning of the processing path trajectory, the deviation of the rail surface profile after processing from the standard profile can be made less than 0.05mm, and the smoothness accuracy can reach 0.01mm, thereby improving the processing accuracy of the rail 20.

[0082] like Figure 1As shown, the portable intelligent rail milling device 10 further includes a control panel 710 through which an operator can perform human-machine interaction with the portable intelligent rail milling device 10. Specifically, after the operator places the portable intelligent rail milling device 10 on the rail 20, the operator can select a corresponding model program through the control panel 710 according to the condition of the rail 20 and the processing requirements, and can also input data such as the processing length and processing depth through the control panel 710 so as to adjust the processing path trajectory accordingly when the controller generates the processing path trajectory, thereby meeting different processing needs. The operator can also control the portable intelligent rail milling device 10 to start milling the rail 20 or pause the milling of the rail 20 during the processing, thereby improving the operability and safety of the portable intelligent rail milling device 10.

[0083] The portable intelligent rail milling device 10 further includes a collection mechanism which has a magnetic member. During the processing, the magnetic member can adsorb the generated iron filings by magnetic force. Thereby, it is possible to prevent the iron filings from spilling and affecting the environment. The portable intelligent rail milling device 10 further includes a battery 720 and a power supply management mechanism. The battery 720 is a lithium battery and can supply electric energy to devices such as the first moving mechanism 200, the second moving mechanism 300, the third moving mechanism 400, and the working mechanism 500. The power supply management mechanism can manage the power supply of the battery 720 to improve the operating stability of the portable intelligent rail milling device 10.

[0084] Next, in combination with the accompanying drawings, in specific embodiments, the specific steps of the rail milling method 80 will be described in detail.

[0085] Figure 5 This is the second flowchart of the rail milling method 90 in this application. As Figure 5 shown, the rail milling method 90 in the embodiments of this application is applicable to large-scale mechanical equipment for urban rail transit maintenance and repair or urban rail transit equipment. Next, taking the use of the above portable intelligent rail milling device 10 as an example, the rail milling method 90 in the embodiments of this application is used to mill the rail 20, and the specific steps include:

[0086] Step S901, place the device.

[0087] In step S901, the portable intelligent rail milling device 10 is moved to the position on the rail 20 to be processed. The first clamping member 140 and the second clamping member 150 are respectively controlled by the caliper 160 to abut against the rail 20, so that the first positioning wheel 110 is firmly connected to the rail 20, and the portable intelligent rail milling device 10 determines the processing reference and establishes a processing coordinate system. That is, the X direction is parallel to the extending direction of the rail 20, the Y direction is perpendicular to the rail 20 on the horizontal plane where the rail 20 is located, and the Y direction is perpendicular to the horizontal plane where the rail 20 is located.

[0088] Step S902: Select a model program.

[0089] In step S902, the operator selects a suitable model program according to the situation of the on-site rail 20 and the processing requirements.

[0090] Step S903: Input data.

[0091] In step S903, the operator inputs data such as the processing length and processing depth as needed.

[0092] Step S904: Obtain surface data.

[0093] In step S904, the controller controls the first moving mechanism 200, the second moving mechanism 300 and the third moving mechanism 400 to drive the detection sensor 600 to move to the corresponding position above the rail 20, and scan the rail 20, so as to obtain surface data such as the longitudinal wave wear data and unevenness data of the rail 20.

[0094] Step S905: Generate a processing path.

[0095] In step S905, the controller automatically generates the processing path trajectory for the ball milling cutter 520 to process the rail 20 according to the model program, the input data and the surface data.

[0096] Step S906: Milling process.

[0097] In step S906, the controller controls the first moving mechanism 200, the second moving mechanism 300 and the third moving mechanism 400 to drive the ball milling cutter 520 to mill the rail 20 along the processing path trajectory.

[0098] Step S907: Re-obtain surface data.

[0099] In step S907, after the ball milling cutter 520 finishes milling the rail 20 along the machining path trajectory, the controller controls the first moving mechanism 200, the second moving mechanism 300, and the third moving mechanism 400 to drive the detection sensor 600 to move to the corresponding position above the rail 20 again to scan the rail 20, so as to obtain surface data such as longitudinal corrugation data and unevenness data of the rail 20. When the surface data shows that the surface of the rail 20 reaches the preset machining profile, step S908 is entered; when the surface data shows that the surface of the rail 20 fails to reach the preset machining profile, return to step S905 to regenerate the machining path trajectory and mill the rail 20 again.

[0100] Step S908, machining completed.

[0101] In step S908, when the surface of the rail 20 reaches the preset machining profile and the milling machining is completed, the caliper 160 is used to control the first clamping member 140 and the second clamping member 150 to separate from the rail 20 respectively, and the portable intelligent rail milling device 10 is moved to other positions.

[0102] Note that the above is only the preferred embodiment of the present application and the applied technical principle. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present application has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, all of which fall within the protection scope of the present invention.

Claims

1. A portable intelligent rail milling device, characterized in that, Comprising: A frame, the frame having two first positioning wheels and one second positioning wheel, the two first positioning wheels being used for connecting to one of the two parallel steel rails to be processed, the second positioning wheel being used for connecting to the other steel rail, the two first positioning wheels and one second positioning wheel being arranged in a triangular configuration; An operating mechanism, the operating mechanism being arranged on the frame and having a ball milling cutter extending downward; A feeding mechanism, the feeding mechanism being arranged on the frame and used for driving the operating mechanism to move in the X direction, Y direction, and Z direction, the X direction being the extending direction of the steel rail, the Y direction being perpendicular to the X direction, the plane where the X direction and the Y direction are located being parallel to the plane where the steel rail is located, and the Z direction being perpendicular to the X direction and the Y direction.

2. The portable intelligent rail milling equipment according to claim 1, characterized in that The outer peripheral surface of the first positioning wheel is used for abutting against the top of the rail head of the steel rail, and the first positioning wheel has a rim protruding from the outer peripheral surface of the first positioning wheel, and the rim is used for abutting against the first side surface of the rail head of the steel rail.

3. The portable intelligent rail milling equipment according to claim 2, characterized in that, The frame further includes a first clamping member and / or a second clamping member, the first clamping member being located on the side of the steel rail facing away from the rim and used for abutting against the side of the steel rail facing away from the rim, and the second clamping member being used for abutting against the bottom surface of the rail head.

4. The portable intelligent rail milling equipment according to claim 3, characterized in that, The first clamping member is provided with a V-shaped notch, one side surface of the notch being in contact with the second side surface of the rail head, and the other side surface being in contact with the bottom surface of the rail head.

5. The portable intelligent rail milling equipment according to claim 4, characterized in that, The feeding mechanism includes a first moving mechanism, a second moving mechanism, and a third moving mechanism. The first moving mechanism has a first mounting frame slidably connected to the frame in the X direction, and the first moving mechanism drives the first mounting frame to slide in the X direction; The second moving mechanism has a second mounting frame slidably connected to the first mounting frame in the Y direction and drives the second mounting frame to slide in the Y direction; The third moving mechanism has a third mounting frame slidably connected to the second mounting frame in the Z direction and drives the third mounting frame to slide in the Z direction, and the operating mechanism is arranged on the third mounting frame.

6. The portable intelligent rail milling equipment according to any one of claims 1-5, characterized in that Further comprising: A detection sensor, the detection sensor being installed on the operating mechanism and detecting the surface data of the steel rail; A controller, the controller controlling the feeding mechanism to drive the ball milling cutter to move according to the surface data.

7. The portable intelligent rail milling equipment according to any one of claims 1-5, characterized in that Further comprising: A collection mechanism, the collection mechanism being used for collecting the iron chips generated when the ball milling cutter processes the steel rail.

8. The portable intelligent rail milling equipment according to claim 7, characterized in that, The collection mechanism has a magnetic member, and the magnetic member is arranged at a position near the ball milling cutter.

9. A rail milling method, characterized in that, Using the portable intelligent steel rail milling equipment according to any one of claims 1-8 to process a steel rail, including: Obtaining the surface data of the steel rail, the surface data including at least one of the longitudinal corrugation data and the unevenness data of the steel rail; The controller automatically generates the processing path trajectory of the ball milling cutter according to the surface data; The feeding mechanism drives the ball milling cutter to move along the processing path trajectory to process the steel rail.

10. The rail milling method according to claim 9, characterized in that, Further comprising: Obtaining input data, the input data including at least one of the processing depth and the processing length; Adjust the machining path trajectory according to the input data.

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