Track grinding equipment

Abstract

The invention relates to track polishing equipment. The track polishing equipment comprises a moving device and a polishing device, wherein the moving device comprises a transversely-arranged frame; the polishing device is arranged on one side of the frame and comprises a polishing part and a multi-directional driving assembly; one end of the polishing part is connected with the multi-directional driving assembly in an angle-adjustable manner, and the other end is in contact with the top end face of the rail or the side face of the rail; the moving device is configured to drive the grinding device to move in the extending direction of the track; the multi-direction driving assembly is configured to drive the grinding part to move in the transverse direction and the longitudinal direction or drive the grinding part to rotate around the extending direction of the rail. And the moving device drives the track polishing equipment to move to the to-be-polished area in the extending direction of the track. The multidirectional driving assembly drives the grinding part to rotate, move in the transverse direction and the longitudinal direction or rotate around the extending direction of the rail, the angle of the grinding part is adjusted, the end face of the top end of the rail is ground, the problems that manual grinding is unstable in quality, low in efficiency and the like are solved, the grinding quality and efficiency are improved, and the service life of the rail is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of turnout maintenance, and particularly to track grinding equipment. Background Art

[0002] With the development of rail transit equipment technology, fine grinding technology for turnouts has emerged. This technology has technical characteristics such as high local operation accuracy and strong adaptability to complex areas, thus giving rise to a dedicated miniaturized grinding device as the technical implementation carrier.

[0003] In the field of turnout maintenance, the related technology mainly adopts a collaborative operation mode of "large grinding vehicle + manual small machine grinding": the large grinding vehicle realizes the rapid grinding of the main area of the turnout through an integrated grinding wheel set, while for restricted space areas with complex curved surface features such as switch points and frog, it relies on a small handheld grinding device operated manually for supplementary operations.

[0004] However, the above operation method has significant technical defects: First, the quality of manual grinding operation is strongly correlated with the operator's experience, and it is difficult to maintain process stability when facing different rail type parameters and damage forms; Second, the effective contact area of a single grinding is small, and it is necessary to make up for the efficiency shortcoming through high-frequency reciprocating operations; Third, the existing equipment lacks automatic positioning and force-position coordination control functions, resulting in a large fluctuation range of contact pressure, which not only affects the uniformity of material removal but also poses a risk of damaging the rail surface. Summary of the Invention

[0005] Based on this, in view of the problems of insufficient process stability, low operation efficiency, and insufficient equipment automation level in traditional turnout maintenance technology, it is necessary to provide a track grinding equipment.

[0006] A track grinding equipment, comprising:

[0007] A moving device, including a frame arranged horizontally;

[0008] A grinding device, arranged on one side of the frame, the grinding device includes a grinding part and a multi-directional driving component; one end of the grinding part is adjustably connected to the multi-directional driving component at an angle, and the other end is used to contact the end face at the top of the track;

[0009] The moving device is configured to drive the grinding device to move along the track extension direction; the multi-directional driving component is configured to drive the grinding part to move horizontally and longitudinally, or drive the grinding part to rotate around the track extension direction.

[0010] In one of the embodiments, a grinding surface for contacting the arc-shaped end face is provided at the bottom or outside of the grinding part.

[0011] In one embodiment, the multi-directional driving assembly includes a fixed bracket and a sliding bracket. The fixed bracket is installed on one side of the vehicle frame, and the sliding bracket is installed above the fixed bracket and is slidably connected to the fixed bracket.

[0012] It further includes a rotary fixed seat, a rotary seat, and a rotary reduction motor. The rotary fixed seat is installed below the sliding bracket, the rotary seat is arranged inside the rotary fixed seat, and the grinding part is installed below the rotary seat. The rotary reduction motor is installed outside the rotary fixed seat, and the output shaft of the rotary reduction motor is connected to the rotary seat.

[0013] In one embodiment, the multi-directional driving assembly further includes a side rail transverse movement linear guide and a side rail transverse movement electric cylinder. The side rail transverse movement linear guide is arranged horizontally above the fixed bracket, and the sliding bracket is slidably connected to the side rail transverse movement linear guide. One end of the side rail transverse movement electric cylinder is connected to the fixed bracket, and the other end is connected to the sliding bracket.

[0014] In one embodiment, the multi-directional driving assembly further includes a top rail feeding slide rail and a top rail feeding electric cylinder. The top rail feeding slide rail is arranged longitudinally, and one end is installed on the rotary seat. The top rail feeding electric cylinder is arranged on one side of the top rail feeding slide rail, and one end is connected to the rotary seat.

[0015] The multi-directional driving assembly further includes a grinding motor. The grinding motor is arranged on one side of the top rail feeding slide rail, and one end is connected to the grinding part through a flange.

[0016] In one embodiment, the grinding part is arranged horizontally, the grinding part is a cup-shaped grinding wheel, and an annular grinding surface is provided at one end of the grinding part away from the rotary seat.

[0017] In one embodiment, the multi-directional driving assembly further includes a connecting plate. The connecting plate is fixedly connected above the rotary seat through a plurality of bolts. The grinding motor is installed on the connecting plate through a motor mounting plate. The motor mounting plate is connected to the top rail feeding electric cylinder and is configured to move longitudinally relative to the connecting plate. The connecting plate is configured to change the mounting hole positions of the plurality of bolts.

[0018] In one embodiment, the grinding part is arranged longitudinally, the grinding part is a disc-shaped grinding wheel, and an annular grinding surface is provided on the outer peripheral side of the grinding part.

[0019] In one embodiment, the moving device further includes four wheels distributed at the four corners of the vehicle frame, two axles distributed front and rear, a coupling, a driving sprocket chain, and a driving reduction motor. The wheels are connected to the coupling through the axles, and the axles are driven by the driving sprocket chain and the driving reduction motor.

[0020] The mobile device further includes symmetrically mounted guide wheels, which are fixedly connected to both sides under the vehicle frame through mounting brackets. Insulating flanges are respectively provided at the joints between the vehicle frame and the wheels, between the axle and the driving sprocket chain, and between the axle and the wheels.

[0021] In one of the embodiments, a power supply device and a control module are further included. The power supply device is mounted on the mobile device and is electrically connected to the mobile device, the grinding device, and the control module;

[0022] The control module is communicatively connected to the mobile device and the grinding device. The control module is configured to control the mobile device to move along the extending direction of the track, control the multi-directional driving assembly to drive the grinding part to move horizontally and longitudinally, and control the grinding part to rotate around the extending direction of the track to grind the end face or the side face of the track top.

[0023] For the above-mentioned track grinding equipment, the mobile device drives the track grinding equipment to move along the extending direction of the track to the area to be ground. The multi-directional driving assembly drives the grinding part to rotate and move horizontally and longitudinally, or rotate around the extending direction of the track to adjust the angle of the grinding part, and perform grinding operations on the end face of the track top, solving problems such as unstable quality and low efficiency of manual grinding, thereby improving the grinding quality and efficiency and extending the service life of the track. Description of the Drawings

[0024] Figure 1 It is the front view of the track grinding equipment.

[0025] Figure 2 It is the top view of the track grinding equipment.

[0026] Figure 3 It is the left view of the track grinding equipment.

[0027] Figure 4 It is the structural schematic diagram of the mobile device.

[0028] Figure 5 It is the structural schematic of the track and the grinding part Figure 1 .

[0029] Figure 6 It is the front view of the multi-directional driving assembly.

[0030] Figure 7 It is the structural schematic of the multi-directional driving assembly Figure 1 .

[0031] Figure 8 It is the structural schematic of the track and the grinding part Figure 2 .

[0032] Figure 9It is a top view of a multi-directional drive component.

[0033] Figure 10 It is a structural schematic of a multi-directional drive component Figure 2 。

[0034] Figure 11 It is a structural schematic of an orbit and a grinding part Figure 3 。

[0035] Figure 12 It is a structural schematic of an orbit and a grinding part Figure 4 。

[0036] In the figure: 10, a moving device; 11, a vehicle frame; 111, a positioning sleeve; 12, wheels; 13, an axle; 15, a coupling; 16, a driving sprocket chain; 17, a driving reduction motor; 18, a guide wheel; 19, an insulating flange; 100, a quick-release clamp;

[0037] 20, a grinding device; 21, a grinding part; 211, a grinding surface; 22, a multi-directional drive component; 221, a fixed bracket; 222, a sliding bracket; 223, a rotary fixed seat; 224, a rotary seat; 225, a rotary reduction motor; 226, a rail-side transverse movement linear guide; 227, a rail-side transverse movement electric cylinder; 228, a rail-top feeding slide rail; 229, a rail-top feeding electric cylinder; 23, a grinding motor; 24, a connecting plate; 25, bolts; 26, positioning pins; 27, sensors;

[0038] 30, a power supply device;

[0039] 40, a control module;

[0040] 50, an orbit; 51, an end face. Detailed implementation manners

[0041] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0042] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0043] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0044] In the present application, unless otherwise clearly specified and limited, if there are terms such as "mounted", "connected", "coupled", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0046] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0047] The related technology mainly adopts a collaborative operation mode of "large-scale grinding vehicle + manual small machine grinding". The large-scale grinding vehicle is responsible for quickly grinding the main area of the turnout, and the small handheld grinding equipment operated manually supplements the grinding of limited space areas such as the switch rail and frog. However, the quality of manual grinding operations depends on the operator's experience, and it is difficult to ensure process stability in the face of different rail type parameters and damage forms; the effective contact area of a single grinding is small, and high-frequency reciprocating operations are required, resulting in low efficiency.

[0048] Refer to Figure 1 、 Figure 2 、 Figure 5 , Figure 1 Fig. shows the front view of the rail grinding equipment in an embodiment of the present application. Figure 2 Fig. shows the top view of the rail grinding equipment in an embodiment of the present application. Figure 5 Fig. shows the structural schematic of the rail 50 and the grinding part 21 in an embodiment of the present application Figure 1 。

[0049] To solve the above technical problems, a rail grinding equipment provided in an embodiment of the present application is composed of a moving device 10 and a grinding device 20. The moving device 10 serves as the traveling mechanism of the equipment and is responsible for the movement of the equipment on the rail 50; the grinding device 20 is used for grinding the rail 50, and the two work together to achieve efficient and precise grinding of the rail 50.

[0050] In this embodiment, the moving device 10 includes a horizontally arranged vehicle frame 11. The grinding device 20 is disposed on one side of the vehicle frame 11. The grinding device 20 includes a grinding part 21 and a multi-directional driving component 22. One end of the grinding part 21 is angularly adjustably connected to the multi-directional driving component 22, and the other end of the grinding part 21 is used to contact the end face 51 at the top of the rail 50. The moving device 10 is configured to drive the grinding device 20 to move along the extending direction of the rail 50. The multi-directional driving component 22 is configured to drive the grinding part 21 to move horizontally and longitudinally, or drive the grinding part 21 to rotate around the extending direction of the rail 50.

[0051] The frame 11 of the mobile device 10 is made of aluminum alloy by welding. It is of a frame structure as a whole, arranged horizontally, with good rigidity and stability, and helps to reduce the overall weight. Four wheels 12 are provided at the four corners of the bottom of the frame 11 for traveling on the track 50, driving the grinding device 20 to move to the track 50 to be ground and repaired.

[0052] The wheels 12 are made of high wear-resistant and high-strength alloy steel, with good grip and wear resistance to adapt to the complex working conditions on the surface of the track 50. The wheels 12 are driven by a drive motor to travel, realizing actions such as forward, backward, and turning of the equipment on the track 50.

[0053] The grinding part 21 of the grinding device 20 is the component that performs the grinding operation. It uses a high-strength and high-hardness alloy grinding wheel. The surface of the grinding wheel has been ground and has good cutting performance and wear resistance. The grinding part 21 is arranged horizontally or longitudinally. One end of the grinding part 21 is connected to the multi-directional drive assembly 22 in an angle-adjustable manner, so that the grinding part 21 can swing at a certain angle around the extending direction of the track 50 to adapt to the slight undulations and angle changes on the surface of the track 50. The other end of the grinding part 21 is the working end, which is in direct contact with the end face 51 or the side surface of the top of the track 50, and performs the grinding operation on the end face 51 or the side surface of the track 50 through the rotational movement of the drive motor.

[0054] The multi-directional drive assembly 22 is a component that drives the grinding part 21 to move horizontally and longitudinally, or drives the grinding part 21 to rotate around the extending direction of the track 50, realizing the movement and angle adjustment of the grinding part 21 in three-dimensional space.

[0055] In the specific implementation process, before starting the grinding operation, place the track grinding equipment on the track 50 to be ground. By controlling the mobile device 10, drive the grinding device 20 to move along the track 50 to the area to be ground. Control the drive motor of the grinding part 21 to drive the grinding part 21 to rotate at a high speed. At the same time, control the multi-directional drive assembly 22 to move horizontally and longitudinally, or rotate around the extending direction of the track 50 to adjust the angle of the grinding part 21, and perform all-round grinding operations on the end face 51 at the top of the track 50.

[0056] As above, the track grinding equipment can achieve efficient and precise grinding of the track 50, effectively solving the problems in the prior art such as unstable quality, low efficiency of manual grinding operations, and the lack of automatic positioning and force-position coordination control functions of the equipment, improving the grinding quality, improving the grinding efficiency, enhancing the performance and service life of the track 50, and ensuring the safety of railway transportation.

[0057] Combined Figure 5 shown, Figure 5 shows the structural schematic of the track 50 and the grinding part 21 provided in an embodiment of the present application Figure 1. In some embodiments, a grinding surface 211 for contacting the arc-shaped end face 51 is provided at the bottom or the outside of the grinding part 21.

[0058] Specifically, the grinding part 21 is of a cylindrical structure, and its material is selected as a high-quality silicon carbide grinding wheel, which has the advantages of high hardness, good wear resistance, strong cutting ability, etc., and can effectively improve the grinding efficiency and quality. In one implementation, a grinding surface 211 adapted to the arc-shaped end face 51 of the track 50 is provided at the bottom of the grinding part 21, and the grinding surface 211 can be a flat surface or a curved surface adapted to the arc-shaped end face 51. The grinding part 21 is horizontally arranged, and the grinding surface 211 is arranged parallel to the end face 51 of the track 50 to ensure that it can closely fit the arc-shaped end face 51 of the track 50 during grinding, realizing uniform grinding. After grinding, the surface roughness of the arc-shaped end face 51 is significantly reduced, effectively eliminating the stress concentration problem caused by uneven grinding and extending the service life of the track 50.

[0059] In another implementation, a grinding surface 211 adapted to the end face 51 of the track 50 is provided on the outside of the grinding part 21, and the grinding surface 211 can be a flat surface or a curved surface adapted to the side surface of the track 50. The grinding part 21 is longitudinally arranged, and the grinding surface 211 is arranged parallel to the end face 51 to ensure that it can closely adhere to the side surface of the track during grinding, realizing uniform grinding, removing burrs, rust and minor damages on the side surface, making the end face 51 flat and smooth, and improving the driving stability and safety.

[0060] In this embodiment, the diameter of the flat surface and the curvature of the curved surface of the grinding part 21 can be adaptively adjusted according to specific usage requirements.

[0061] Combined Figure 6 、 Figure 7 shown, Figure 6 The front view of the multi-directional drive assembly 22 provided in an embodiment of the present application is shown. Figure 7 The structural schematic diagram of the multi-directional drive assembly 22 provided in an embodiment of the present application is shown Figure 1 .

[0062] In some embodiments, the multi-directional drive assembly 22 includes a fixed bracket 221, a sliding bracket 222, a rotary fixed seat 223, a rotary seat 224, a rotary reduction motor 225, a side rail transverse movement linear guide 226, a side rail transverse movement electric cylinder 227, a top rail feed slide rail 228, and a top rail feed electric cylinder 229. The fixed bracket 221 is installed on one side of the vehicle frame 11, and the sliding bracket 222 is installed above the fixed bracket 221 and is slidably connected to the fixed bracket 221.

[0063] Specifically, the fixed bracket 221 is a rectangular metal frame made of aluminum alloy. A positioning sleeve 111 is provided on the vehicle frame 11. The fixed bracket 221 is fixed on the positioning sleeve 111 of the vehicle frame 11 through a positioning pin 26, and the fixed bracket 221 is installed on one side of the vehicle frame 11.

[0064] The sliding bracket 222 is also a rectangular metal frame, and its bottom is slidably connected to the fixed bracket 221. For example, linear guide rails are provided on the surface of the fixed bracket 221, and sliders are provided at the bottom of the sliding bracket 222 to slidably cooperate with the linear guide rails, realizing the sliding connection of the sliding bracket 222 above the fixed bracket 221. The fixed bracket 221 and the sliding bracket 222 can also be fixedly connected using a quick-release clamp 100, facilitating subsequent quick disassembly or replacement.

[0065] The rotary fixing seat 223 is installed below the sliding bracket 222. The rotary seat 224 is connected to the rotary reduction motor 225, and the grinding part 21 is installed below the rotary seat 224.

[0066] Specifically, the upper end of the rotary fixing seat 223 is fixedly installed below the sliding bracket 222 through bolts 25, providing an installation position for the rotary reduction motor 225. The rotary reduction motor 225 is installed outside the rotary fixing seat 223, and the output shaft of the rotary reduction motor 225 is connected to the rotary seat 224, used to drive the grinding part 21 to rotate around the extending direction of the track 50 to adjust the grinding angle.

[0067] The rotary reduction motor 225 adopts a planetary gear reduction motor, which has the advantages of compact structure, high transmission efficiency, large torque, etc. By controlling the rotation angle and speed of the rotary reduction motor 225, the grinding part 21 can be driven to rotate around the extending direction of the track 50, thereby precisely adjusting the grinding angle.

[0068] In this embodiment, the rotation angle adjustment range is 0° - 90°, and the rotation angle can be adaptively adjusted according to specific usage requirements.

[0069] The multi-directional drive assembly 22 further includes a side rail transverse movement linear guide rail 226 and a side rail transverse movement electric cylinder 227. The side rail transverse movement linear guide rail 226 is arranged horizontally above the fixed bracket 221, and the sliding bracket 222 is slidably connected to the side rail transverse movement linear guide rail 226; one end of the side rail transverse movement electric cylinder 227 is connected to the fixed bracket 221, and the other end is connected to the sliding bracket 222, used to drive the grinding part 21 to move horizontally.

[0070] Specifically, the track-side transverse movement linear guide rails 226 are two mutually parallel linear guide rails, which are respectively arranged on both sides above the fixed bracket 221 along the transverse direction. The track-side transverse movement electric cylinder 227 adopts a servo electric cylinder, which has the characteristics of high positioning accuracy and fast response speed. The track-side transverse movement electric cylinder 227 is installed on one side of the sliding bracket 222 through an electric cylinder mounting seat, and the end of its piston rod is connected to the rotary fixed seat 223 through a spherical eye joint. The piston rod of the track-side transverse movement electric cylinder 227 expands and contracts to drive the sliding bracket 222 to move transversely along the track-side transverse movement linear guide rails 226, thereby driving the grinding part 21 to move transversely. In this embodiment, the transverse movement stroke and movement accuracy can be adaptively adjusted according to specific usage requirements.

[0071] The multi-directional driving assembly 22 further includes a track-top feeding slide rail 228 and a track-top feeding electric cylinder 229. The track-top feeding slide rail 228 is longitudinally arranged, and one end is installed on the rotary seat 224; the track-top feeding electric cylinder 229 is arranged on one side of the track-top feeding slide rail 228, and one end is connected to the rotary seat 224 for driving the grinding part 21 to move longitudinally.

[0072] Specifically, the track-top feeding slide rail 228 is two longitudinally arranged linear guide rails, and one end is fixedly installed on the rotary seat 224 through bolts 25. The track-top feeding electric cylinder 229 also adopts a servo electric cylinder, which is installed on one side of the track-top feeding slide rail 228, and the end of its piston rod is connected to the rotary seat 224 through a connecting plate 24. The piston rod of the track-top feeding electric cylinder 229 expands and contracts to drive the grinding part 21 to move longitudinally along the track-top feeding slide rail 228, realizing precise adjustment of the longitudinal position of the grinding part 21. In this embodiment, the longitudinal movement stroke and movement accuracy can be adaptively adjusted according to specific usage requirements.

[0073] The multi-directional driving assembly 22 further includes a grinding motor 23. The grinding motor 23 is arranged on one side of the track-top feeding slide rail 228, and one end is connected to the grinding part 21 through a flange for driving the grinding part 21 to rotate in a direction perpendicular to the extending direction of the track 50. The grinding part 21 is transversely arranged, and the grinding part 21 is a cup-shaped grinding wheel. An annular grinding surface 211 is provided at one end of the grinding part 21 away from the rotary seat 224.

[0074] Specifically, the grinding part 21 is a transversely arranged cup-shaped grinding wheel. An annular grinding surface 211 is provided at one end of the grinding part 21 away from the rotary seat 224. The width of the annular grinding surface 211 is 30 mm, and the surface roughness is uniform. The cup-shaped grinding wheel enables the annular grinding surface 211 to better fit complex areas such as the side surface of the track 50 and the edge of the end face 51, realizing all-round grinding of the track 50.

[0075] The grinding motor 23 is fixedly installed on one side of the rail top feeding slide rail 228 through a motor mounting flange, and its output shaft is connected to the grinding part 21 through a flange. In this embodiment, by adjusting the output frequency of the grinding motor 23, the rotation speed of the grinding motor 23 is controlled, and the rotation speed adjustment range is 0 r / min - 3000 r / min.

[0076] In one implementation, when it is necessary to grind the complex area at the intersection of the side surface and the top end surface 51 of the rail 50, the grinding motor 23 is started to reach the preset rotation speed. Then, the rail side transverse movement electric cylinder 227 is controlled to move transversely to the position to be ground. Then, the rotary reduction motor 225 is controlled to rotate, driving the grinding part 21 to rotate to adjust the grinding angle. Finally, the rail top feeding electric cylinder 229 is controlled to drive the grinding part 21 longitudinally to grind the end surface of the rail 50.

[0077] During the grinding process, the grinding pressure is monitored in real time through the force sensor 27 installed on the grinding part 21, and the telescopic amount of the rail top feeding electric cylinder 229 is adjusted in real time to ensure the stability of the grinding pressure.

[0078] In another implementation, when it is necessary to perform conventional grinding on the top surface of the rail 50, the grinding motor 23 is started to reach the preset rotation speed. Then, the rail side transverse movement electric cylinder 227 is controlled to move transversely to the position to be ground. Then, the rotary reduction motor 225 is controlled to rotate, driving the grinding part 21 to rotate to adjust the grinding angle to 0°, that is, the grinding part 21 is parallel to the top surface of the rail 50. Finally, the rail top feeding electric cylinder 229 is controlled to drive the grinding part 21 longitudinally to grind the top surface of the rail 50.

[0079] Combined Figure 9 、 Figure 10 shown, Figure 9 is a top view showing the multi-directional drive assembly provided in an embodiment of the present application. Figure 10 shows the structural schematic Figure 2 .

[0080] In some embodiments, the multi-directional drive assembly 22 includes a fixed bracket 221, a sliding bracket 222, a rotary fixed seat 223, a rotary seat 224, a connecting plate 24, a rotary reduction motor 225, a rail side transverse movement linear guide 226, a rail side transverse movement electric cylinder 227, a rail top feeding slide rail 228, and a rail top feeding electric cylinder 229.

[0081] The connecting plate 24 is fixedly connected above the slewing base 224 through a plurality of bolts 25. The grinding motor 23 is mounted on the connecting plate 24 through a motor mounting plate. The motor mounting plate is connected to the rail top feeding electric cylinder 229 and is configured to move longitudinally relative to the connecting plate 24. The connecting plate 24 is configured to change the mounting hole positions of the plurality of bolts 25 so as to adjust the angle between the longitudinally arranged grinding part 21 and the end face 51 of the top of the rail 50.

[0082] Specifically, the grinding part 21 is arranged longitudinally. The output end of the grinding motor 23 is connected to the longitudinally arranged grinding part 21 to drive the grinding part 21 to rotate, and the curved surface part of the end face 51 of the rail 50 is ground by the grinding surface 211 on the outer side of the grinding part 21.

[0083] The connecting plate 24 is of a plate structure and is fixedly connected above the slewing base 224 through a plurality of high-strength bolts 25. A plurality of bolt 25 mounting hole positions at different positions are evenly distributed on the connecting plate 24, and these hole positions are arranged in a ring shape. By changing the mounting hole positions of the plurality of bolts 25 when the connecting plate 24 is connected to the slewing base 224, the angle between the longitudinally arranged grinding part 21 and the end face 51 of the top of the rail 50 is adjusted, so as to meet the grinding angle requirements of different parts of the rail 50.

[0084] Combined with Figure 8 as shown, Figure 8 Fig. shows the structural schematic diagram of the rail 50 and the grinding part 21 provided in an embodiment of the present application Figure 2 . In some embodiments, the grinding part 21 is arranged longitudinally. The grinding part 21 is a grinding wheel of a disc structure, and an annular grinding surface 211 is provided on the outer peripheral wall of the grinding part 21.

[0085] Specifically, the grinding part 21 is a longitudinally arranged disc-shaped grinding wheel. The grinding part 21 is arranged longitudinally, that is, in a direction perpendicular to the extending direction of the rail 50. The annular grinding surface 211 provided on the outer peripheral wall of the grinding part 21 fits the curved end face 51 of the top of the rail 50 to achieve all-round grinding, effectively solving the problem that the traditional grinding part 21 is difficult to adapt to the grinding of complex parts.

[0086] Combined with Figure 11 as shown, Figure 11 Fig. shows the structural schematic diagram of the rail 50 and the grinding part 21 provided in an embodiment of the present application Figure 3 . In some embodiments, the longitudinally arranged grinding part 21 is a grinding wheel of a disc structure, and an arc-shaped structure is formed by partial depression of the outer peripheral wall of the grinding part 21. The arc-shaped structure contacts the curved surface of the top of the rail 50 and the side surface of the rail 50 to achieve simultaneous grinding of the curved surface and the side surface.

[0087] Combined with Figure 12 as shown, Figure 12Shows the structural schematic diagram of the track 50 and the grinding part 21 provided in an embodiment of the present application Figure 4 . In some embodiments, the grinding part 21 is longitudinally arranged, and the included angle between the grinding part 21 and the side surface of the track 50 is adjusted by the rotary reduction motor 225, so that the grinding part 21 has an inclination angle. The grinding surface 211 on one side of the grinding part 21 is used to contact the side surface of the track 50 or the top curved surface of the track 50 to achieve the grinding process

[0088] Combined Figure 2 、 Figure 3 、 Figure 4 Shown Figure 2 Shows the top view of the track grinding equipment provided in an embodiment of the present application Figure 3 Shows the left view of the track grinding equipment provided in an embodiment of the present application Figure 4 Shows the structural schematic diagram of the mobile device provided in an embodiment of the present application

[0089] In some embodiments, the mobile device 10 further includes four wheels 12 distributed at the four corners of the vehicle frame 11, two axles 13 distributed front and rear, a coupling 15, a driving sprocket chain 16, and a driving reduction motor 17. The wheels 12 are connected to the coupling 15 through the axles 13, and the axles 13 are driven by the driving sprocket chain 16 and the driving reduction motor 17

[0090] Specifically, the vehicle frame 11 is welded by aluminum alloy profiles and has an overall rectangular frame structure

[0091] Four wheels 12 are provided at the four corners of the vehicle frame 11, and the wheels 12 are made of cast steel. Two axles 13 are provided at the front and rear of the vehicle frame 11, and the axles 13 are made of alloy steel. Both ends of the axles 13 are connected to the wheels 12 through bearings, and insulating flanges 19 are provided at the end joints at both ends of the axles 13. An insulating flange 19 is provided between the vehicle frame 11 and the wheels 12, effectively isolating the electrical part and preventing electric leakage from causing safety accidents. An insulating flange 19 is installed between the axles 13 and the driving sprocket chain 16

[0092] In this embodiment, the insulating flange 19 is made of a high-performance epoxy resin glass fiber reinforced material, its insulation resistance is greater than 10 MΩ, and its withstand voltage strength is greater than 10 kV, which can effectively isolate the electrical connection between the wheels 12 and the vehicle frame 11, prevent the current from being conducted to the track 50 through the wheels 12, and avoid safety accidents caused by electrical failures

[0093] The mobile device 10 further includes symmetrically installed guide wheels 18, and the guide wheels 18 are fixedly connected to both sides below the vehicle frame 11

[0094] Specifically, two guide wheels 18 are respectively installed on both sides below the vehicle frame 11, that is, four guide wheels 18 are installed at the four corners of the vehicle frame 11. The guide wheels 18 are fixedly welded to the vehicle frame 11 through the guide wheel 18 brackets and insulated through the insulating flange 19. The guide wheels 18 and the guide wheel 18 brackets are made of low-carbon steel, and the guide wheel 18 brackets are screwed to the vehicle frame 11 to enable the guide wheels 18 to smoothly enter special type tracks such as the switch rail.

[0095] During the operation of the mobile device 10, there is a gap between the guide wheels 18 and the track 50. The distance between the guide wheels 18 and the track 50 is adjusted to ensure that the wheels 12 on the other side do not collide with the switch rail reversely after the guide wheels 18 enter the switch rail or the like. When the mobile device 10 travels on the straight track 50, there is a gap between the guide wheels 18 and the side surface of the track 50, and the wheels 12 have conical treads. Theoretically, the mobile device 10 can maintain straight running on the straight section. When the wheels 12 are skewed, the guide wheels 18 play a guiding role. When the device enters the curved track 50, the guide wheels 18 can automatically adjust the angle according to the curve direction of the track 50, guide the mobile device 10 to pass through the curve smoothly, ensure that the mobile device 10 always travels along the center line of the track 50, and limit the lateral movement amount of the mobile device 10 along the track 50.

[0096] In one of the embodiments, the track grinding device further includes a power supply device 30 and a control module 40. The power supply device 30 is installed on the mobile device 10 and is electrically connected to the mobile device 10, the grinding device 20 and the control module 40.

[0097] Specifically, the power supply device 30 is installed on the vehicle frame 11 of the mobile device 10 and uses a lithium battery pack or a lithium iron phosphate battery pack as the power source. The battery pack can output 48V DC power to supply power to the mobile device 10 and the grinding device 20. Or through a power converter, the 48V DC power is converted into 24V DC power to supply power to the control module 40. The battery pack is equipped with a battery management system (BMS). The BMS communicates with the main control system through the RS485 bus and uploads information such as the voltage, current, power, temperature, and alarm of the battery in real time. When the battery power is too low or the temperature is too high, the grinding power is automatically reduced or the operation is stopped to protect the battery safety. At the same time, the power supply device 30 is also provided with a charging interface and supports fast charging.

[0098] The control module 40 is communicatively connected to the mobile device 10 and the grinding device 20. The control module 40 is configured to control the axial movement of the mobile device 10 along the track 50, and control the multi-directional drive assembly 22 to drive the grinding device 20 to grind the end face 51 at the top of the track 50 in an adjustable manner in the transverse, longitudinal, and axial directions.

[0099] Specifically, the control module 40 includes a main control system, a drive execution unit, an upper control system, and an auxiliary system.

[0100] The main control system uses a motion control type PLC controller. This controller realizes grinding and driving control through the CAN bus, decomposes the task instructions and setting parameters of the upper control system into control instructions and transmits them to the drive execution unit, such as the multi-directional drive assembly 22 for execution. For example, when the upper control system sets the grinding speed to 2 m / min and the grinding pressure to 500 N, the PLC of the main control system will calculate the corresponding control instructions based on these parameters and the data collected by the sensors 27, such as the data of the traveling motor encoder and the data of the pressure sensor 27, and transmit them to the multi-directional drive assembly 22.

[0101] The drive execution unit includes the drive motor of the moving device 10, that is, the traveling motor; it also includes the rail side transverse movement electric cylinder 227, the rail top feeding electric cylinder 229, the rotary reduction motor 225, and the grinding motor 23 in the multi-directional drive assembly 22. It also includes a driver that receives the instructions of the active system and controls the driving of each motor or the telescopic movement of the electric cylinder to realize grinding, traveling or multi-directional movement.

[0102] The upper control system includes a wireless AP, a local control interface, and a mobile App control interface connected wirelessly. The wireless AP uses an industrial grade wireless router to provide a wireless network connection. The local control interface is a touch screen installed on the equipment operation table. Through touch operations, grinding tasks and parameters such as grinding length, grinding depth, and grinding speed can be set, and the trolley can be started for grinding operations. At the same time, the interface can monitor the grinding operation data in real time, such as grinding pressure, grinding speed, traveling distance, etc., and the trolley status information, such as battery power, equipment temperature, fault alarm, etc. The mobile App control interface can run on a smart phone or a tablet computer, which is convenient for the operator to set grinding tasks and parameters and remotely monitor and control the equipment.

[0103] The auxiliary system includes operation auxiliary devices such as an audible and visual alarm and a lighting lamp. The audible and visual alarm uses a three-color audible and visual alarm. When the equipment has a fault, low battery power, abnormal pressure, etc., it will emit alarm signals of different colors and frequencies to remind the operator to deal with it in time. The lighting lamp is an LED lighting lamp installed at the front end and both sides of the equipment to provide lighting for operations at night or in a dim environment.

[0104] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as the scope described in this specification.

[0105] The above embodiments only illustrate several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An orbital grinding device, characterized in that, Comprising: A mobile device (10), including a horizontally arranged frame (11); A grinding device (20), arranged on one side of the frame (11), the grinding device (20) including a grinding part (21) and a multi-directional driving component (22); one end of the grinding part (21) is angularly adjustably connected to the multi-directional driving component (22), and the other end is used to contact the end face (51) at the top of the track (50); The mobile device (10) is configured to drive the grinding device (20) to move along the extending direction of the track (50); the multi-directional driving component (22) is configured to drive the grinding part (21) to move horizontally and longitudinally, or drive the grinding part (21) to rotate around the extending direction of the track (50).

2. The rail grinding equipment according to claim 1, characterized in that, A grinding surface (211) for contacting the arc-shaped end face (51) is provided at the bottom or outside of the grinding part (21).

3. The rail grinding equipment according to claim 2, characterized in that The multi-directional driving component (22) includes a fixed bracket (221) and a sliding bracket (222), the fixed bracket (221) is installed on one side of the frame (11), the sliding bracket (222) is installed above the fixed bracket (221) and is slidably connected to the fixed bracket (221); It further includes a rotary fixing seat (223), a rotary seat (224) and a rotary reduction motor (225), the rotary fixing seat (223) is installed below the sliding bracket (222), the rotary seat (224) is arranged in the rotary fixing seat (223), and the grinding part (21) is installed below the rotary seat (224); the rotary reduction motor (225) is installed outside the rotary fixing seat (223), and the output shaft of the rotary reduction motor (225) is connected to the rotary seat (224).

4. The rail grinding equipment according to claim 3, characterized in that, The multi-directional driving component (22) further includes a side-rail horizontal translation linear guide (226) and a side-rail horizontal translation electric cylinder (227), the side-rail horizontal translation linear guide (226) is horizontally arranged above the fixed bracket (221), and the sliding bracket (222) is slidably connected to the side-rail horizontal translation linear guide (226); one end of the side-rail horizontal translation electric cylinder (227) is connected to the fixed bracket (221), and the other end is connected to the sliding bracket (222).

5. The rail grinding equipment according to claim 3, characterized in that, The multi-directional driving component (22) further includes a top-rail feeding slide rail (228) and a top-rail feeding electric cylinder (229), the top-rail feeding slide rail (228) is longitudinally arranged, and one end is installed on the rotary seat (224); the top-rail feeding electric cylinder (229) is arranged on one side of the top-rail feeding slide rail (228), and one end is connected to the rotary seat (224); The multi-directional driving component (22) further includes a grinding motor (23), the grinding motor (23) is arranged on one side of the top-rail feeding slide rail (228), and one end is connected to the grinding part (21) through a flange.

6. The rail grinding equipment according to claim 3, characterized in that, The grinding part (21) is horizontally arranged, the grinding part (21) is a cup-shaped grinding wheel, and an annular grinding surface (211) is provided at one end of the grinding part (21) away from the rotary seat (224).

7. The rail grinding equipment according to claim 5, characterized in that, The multi-directional driving assembly (22) further includes a connecting plate (24). The connecting plate (24) is fixedly connected above the slewing base (224) by a plurality of bolts (25). The grinding motor (23) is mounted on the connecting plate (24) through a motor mounting plate. The motor mounting plate is connected to the rail top feeding electric cylinder (229) and is configured to move longitudinally relative to the connecting plate (24). The connecting plate (24) is configured to change the mounting hole positions of the plurality of bolts (25).

8. The rail grinding equipment according to claim 7, characterized in that, The grinding part (21) is longitudinally arranged. The grinding part (21) is a grinding wheel with a disc-shaped structure. An annular grinding surface (211) is provided on the outer peripheral side of the grinding part (21).

9. The rail grinding equipment according to claim 1, wherein The moving device (10) further includes four wheels (12) distributed at the four corners of the vehicle frame (11), two axles (13) distributed front and rear, a coupling (15), a driving sprocket chain (16) and a driving reduction motor (17). The wheels (12) are connected to the coupling (15) through the axles (13). The axles (13) are driven by the driving sprocket chain (16) and the driving reduction motor (17). The moving device (10) further includes symmetrically mounted guide wheels (18). The guide wheels (18) are fixedly connected to both sides below the vehicle frame (11) through mounting brackets. Insulating flanges (19) are respectively provided at the connections between the vehicle frame (11) and the wheels (12), between the axles (13) and the driving sprocket chain (16), and between the axles (13) and the wheels (12).

10. The rail grinding equipment according to claim 1, characterized in that, It further includes a power supply device (30) and a control module (40). The power supply device (30) is mounted on the moving device (10) and is electrically connected to the moving device (10), the grinding device (20) and the control module (40). The control module (40) is communicatively connected to the moving device (10) and the grinding device (20). The control module (40) is configured to control the moving device (10) to move along the extending direction of the track (50), control the multi-directional driving assembly (22) to drive the grinding part (21) to move horizontally and longitudinally, and control the grinding part (21) to rotate around the extending direction of the track (50) to grind the end surface (51) of the top of the track (50) or the side surface of the track (50).

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