Rail rail joint grinder for grinding both sides of a rail

Abstract

The utility model relates to a kind of steel rail welded rib polishing machine to steel rail double side polishing, it includes moving frame, first polishing component, first displacement component, second polishing component and second displacement component;Moving frame can be erected on steel rail, and can be fixed on steel rail;First displacement component and second displacement component are respectively installed in moving frame;The moving end of first displacement component is connected first polishing component, for driving first polishing component moves along XYZ axis;The moving end of second displacement component is connected second polishing component, for driving second polishing component moves along XYZ axis;First polishing component and second polishing component are respectively used to polish the welded rib of the opposite side of steel rail.The utility model improves polishing efficiency and polishing quality, saves artificial cost and reduces labor intensity, improves the adaptability to working environment, and the consistency of welded rib profile after polishing is higher;And it can polish simultaneously, and can also polish operation singly.

Description

Technical Field

[0001] This utility model relates to the field of rail weld bar grinding technology, and in particular to a rail weld bar grinding machine for grinding both sides of rails. Background Technology

[0002] In the field of railway construction and maintenance, the grinding process of weld beads after rail welding is crucial. High-quality grinding not only improves the aesthetics of the rail surface but also effectively reduces defects and stress concentration at the weld joint, greatly enhancing weld strength and ensuring the safety and stability of train operation. Especially for high-speed rail rails, the grinding quality directly affects the train's performance.

[0003] Most existing grinding machines are clamped onto the rails to be ground for fixed positioning. After grinding, the machine needs to be moved manually, which is time-consuming and labor-intensive. Some grinding equipment is operated manually, resulting in inconsistent grinding quality and low efficiency. These problems urgently need to be solved. Utility Model Content

[0004] This utility model discloses a rail weld bead grinding machine for grinding both sides of rails, aiming to solve the technical problems existing in the prior art.

[0005] The present invention adopts the following technical solution:

[0006] This utility model provides a rail weld bead grinding machine for grinding both sides of a rail, comprising a movable frame, a first grinding component, a first displacement component, a second grinding component, and a second displacement component. The movable frame can be erected on the rail and can move and be fixed on the rail. The first displacement component and the second displacement component are respectively installed on the movable frame. The movable end of the first displacement component is connected to the first grinding component and is used to drive the first grinding component to move along the XYZ axis. The movable end of the second displacement component is connected to the second grinding component and is used to drive the second grinding component to move along the XYZ axis. The first grinding component and the second grinding component are respectively used to grind the weld beads on opposite sides of the rail.

[0007] In the rail weld bead grinding machine for double-sided grinding of rails of this utility model, the first grinding assembly includes a first mounting frame, a first drive assembly, a first grinding component, and a first pressure measuring element; the first mounting frame is fixedly mounted on the moving end of the first displacement assembly; the first drive assembly is mounted on the first mounting frame and is used to drive the first grinding component; one side of the first grinding component is hinged to the first mounting frame so as to be able to rotate along a direction perpendicular to the extension of the rail, and the other side is fixedly connected to the first mounting frame through the first pressure measuring element; the first pressure measuring element is used to measure the force between the first grinding component and the rail when the first grinding component grinds the rail head, rail web, and rail bottom of the rail.

[0008] In the rail weld bead grinding machine for grinding both sides of the rail according to this utility model, the first grinding component further includes a first cooling fan; the first cooling fan is used to cool down the first grinding part.

[0009] In the rail weld bead grinding machine for double-sided grinding of rails of this utility model, the second grinding assembly includes a second mounting frame, a second drive assembly, a second grinding component, and a second pressure measuring element; the second mounting frame is fixedly mounted on the moving end of the second displacement assembly; the second drive assembly is mounted on the second mounting frame and is used to drive the second grinding component; one side of the second grinding component is hinged to the second mounting frame so as to be able to rotate along a direction perpendicular to the extension of the rail, and the other side is fixedly connected to the second mounting frame through the second pressure measuring element; the second pressure measuring element is used to measure the force between the second grinding component and the rail when the second grinding component grinds the rail head, rail web, and rail bottom of the rail.

[0010] In the rail weld bead grinding machine for grinding both sides of the rail according to this utility model, the second grinding component further includes a second cooling fan; the second cooling fan is used to cool down the second grinding part.

[0011] In the rail weld bead grinding machine for double-sided grinding of rails of this utility model, the movable frame includes a frame, a first traveling wheel, and a first clamping assembly; the first grinding assembly, the first displacement assembly, the second grinding assembly, and the second displacement assembly are installed on the top of the frame, and the first traveling wheel and the first clamping assembly are installed on the bottom; the first traveling wheel is used to move on the rail; the first clamping assembly is used to clamp the side of the rail head of the rail being ground to fix the position of the frame.

[0012] In the rail weld bead grinding machine for double-sided grinding of rails of this utility model, the first clamping assembly includes a first body, a first clamping plate, and a first tightening bolt; the first body has a first receiving groove; the first receiving groove is used to receive the rail head of the rail; the first clamping plate is disposed inside the first receiving groove, and its top can be movably connected to the inner wall of the first receiving groove, either close to or away from the inner wall of the first receiving groove; one end of the first tightening bolt passes through the first body and abuts against the first clamping plate, so that the first clamping plate can abut against the rail head of the rail.

[0013] In the rail weld bead grinding machine for double-sided grinding of rails of this utility model, the first clamping assembly further includes a first retaining strip and a first guide rod; the first retaining strip surrounds the top of the first clamping plate and its end is fixed to the inner wall of the first receiving groove; one end of the first guide rod is fixed to the inner wall of the first receiving groove, and the other end is disposed on the first retaining strip; the first clamping plate has a first through hole; the first guide rod passes through the first through hole, and the first clamping plate can move closer to or further away from the inner wall of the first receiving groove along the first guide rod, thereby clamping the rail head of the rail.

[0014] In the rail weld bead grinding machine for grinding both sides of the rail of this utility model, the bottom of the first clamping plate is lower than the bottom of the rail head and bends away from the inner wall of the first receiving groove to form a shape limiting part between it and the inner wall of the first receiving groove on the other side, so as to prevent the rail head of the rail from detaching from the first clamping assembly.

[0015] In the rail weld bead grinding machine for grinding both sides of the rail according to this utility model, the movable frame also includes multiple support legs, which are arranged around the bottom of the frame to support the frame.

[0016] The technical solution adopted in this utility model can achieve the following beneficial effects:

[0017] This utility model mainly provides a rail weld bead grinding machine for grinding both sides of rails. Based on the fact that the first grinding component and the second grinding component grind the weld beads on both sides of the rail respectively, the grinding efficiency can be improved. Furthermore, the first grinding component is moved by the first displacement component and the second grinding component is moved by the second displacement component, thus realizing the mechanization of grinding, improving grinding efficiency and quality, saving labor costs and reducing labor intensity, improving adaptability to the working environment, and resulting in higher uniformity of the weld bead contour after grinding. Moreover, the first grinding component and the second grinding component can grind simultaneously or one of them can be used for grinding. The method of grinding by setting up a mobile frame on the rail to be ground on site makes the operation more flexible and convenient for continuous grinding of weld beads in different positions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below, forming part of this utility model. The illustrative embodiments of this utility model and their descriptions explain this utility model and do not constitute an improper limitation of this utility model. In the accompanying drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of a rail weld bead grinding machine for grinding both sides of a rail, according to the present invention.

[0020] Figure 2 This is a schematic diagram of the main structure of a rail weld bead grinding machine for grinding both sides of a rail according to the present invention.

[0021] Figure 3 This is a schematic diagram showing the force analysis of the first and second grinding parts of this utility model when grinding the top surface of the rail head.

[0022] Figure 4 This is a schematic diagram of the force analysis when the first and second grinding parts of this utility model grind the side of the rail.

[0023] Figure 5 This is a schematic diagram of the force analysis of the first and second grinding parts of this utility model when grinding the bottom of the rail.

[0024] Figure 6 This is a schematic diagram of the structure of the first grinding roller of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the second grinding roller of this utility model;

[0026] Figure 8 This is one of the schematic diagrams of the first clamping assembly structure of this utility model;

[0027] Figure 9 This is the second schematic diagram of the first clamping component of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Movable frame; 11. Chassis; 12. First traveling wheel; 13. First clamping assembly; 131. First main body; 1311. First receiving through slot; 1312. First receiving recess; 132. First clamping plate; 1321. First through hole; 133. First tightening bolt; 134. First enclosure strip; 135. First guide rod; 15. Support leg; 2. First grinding assembly; 21. First mounting frame; 221. First mounting plate; 222. First support; 22. First drive assembly; 221. First motor; 222. First driving roller; 223. First driven roller; 224. First grinding roller; 2241. First cylindrical main body; 22 42. First protective structure; 225. First tensioning wheel; 23. First grinding component; 24. First force measuring element; 25. First cooling fan; 3. First displacement assembly; 4. Second grinding assembly; 41. Second mounting bracket; 421. Second mounting plate; 422. Second support; 42. Second drive assembly; 421. Second motor; 422. Second driving roller; 423. Second driven roller; 424. Second grinding roller; 4241. Second cylindrical body; 4242. Second protective structure; 425. Second tensioning wheel; 43. Second grinding component; 44. Second force measuring element; 45. Second cooling fan; 5. Second displacement assembly. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this utility model, it should be noted that the term "or" is generally used to include the meaning of "and / or," unless otherwise expressly stated otherwise.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a magnetic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0032] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] To address the problems existing in the prior art, this application provides a rail weld bead grinding machine for grinding both sides of the rail.

[0034] like Figure 1 and Figure 2 As shown, a rail weld bead grinding machine for grinding both sides of a rail includes a movable frame 1, a first grinding component 2, a first displacement component 3, a second grinding component 4, and a second displacement component 5. The movable frame 1 can be erected on the rail and can move and be fixed on the rail. The first displacement component 3 and the second displacement component 5 are respectively installed on the movable frame 1. The movable end of the first displacement component 3 is connected to the first grinding component 2, and is used to drive the first grinding component 2 to move along the XYZ axes. The movable end of the second displacement component 5 is connected to the second grinding component 4, and is used to drive the second grinding component 4 to move along the XYZ axes. The first grinding component 2 and the second grinding component 4 are respectively used to grind the weld beads on opposite sides of the rail. The X direction is the direction closer to or farther from the rail (i.e., the rail width direction), the Y direction is the direction extending along the rail, and the Z direction is the rail height direction.

[0035] This utility model discloses a rail weld bead grinding machine for grinding both sides of a rail. Based on grinding the weld beads on both sides of the rail using a first grinding component 2 and a second grinding component 4 respectively, it can improve grinding efficiency. The first displacement component 3 drives the first grinding component 2 to move for grinding, and the second displacement component 5 drives the second grinding component 4 to move for grinding, realizing mechanization of grinding, improving grinding efficiency and quality, saving labor costs, reducing labor intensity, improving adaptability to the working environment, and making the weld bead contour more consistent after grinding. The first grinding component 2 and the second grinding component 4 can be operated simultaneously or individually, and can grind in the same grinding direction, that is, not grinding the two sides of the rail directly opposite each other at the same time, avoiding excessive grinding temperature that affects grinding quality and rail strength. The method of using a mobile frame 1 to be erected on the rail to be ground on site makes the operation more flexible and convenient for continuous grinding of weld beads in different positions.

[0036] In some preferred embodiments, the first grinding assembly 2 and the second grinding assembly 4 each grind half of the rail along the centerline of the cross section; thereby avoiding grinding the top surface of the rail head and the bottom of the rail to more than half the position, which would affect the grinding feed.

[0037] In some preferred embodiments, such as Figure 2As shown, the first grinding assembly 2 includes a first mounting frame 21, a first drive assembly 22, a first grinding element 23, and a first force measuring element 24. The first mounting frame 21 is fixedly mounted on the moving end of the first displacement assembly 3. The first drive assembly 22 is mounted on the first mounting frame 21 and is used to drive the first grinding element 23. One side of the first grinding element 23 is hinged to the first mounting frame 21 so that it can rotate along a direction perpendicular to the extension of the rail, and the other side is fixedly connected to the first mounting frame 21 through the first force measuring element 24. Specifically, the first grinding element 23 is connected to the measuring end of the first force measuring element 24. The force measuring element 24 is fixed on the first mounting bracket 21. The first force measuring element 24 is used to measure the force between the first grinding part 23 and the rail when the first grinding part 23 grinds the rail head, rail web and rail bottom. Based on the measurement of the force during grinding by the first force measuring element 24, the feed amount of the first displacement component 3 can be adjusted based on the measured value to ensure that the force is within a suitable range, so as to avoid damage to the drive equipment of the first grinding part 23 due to excessive force, and to avoid affecting the grinding efficiency due to insufficient force. The specific force range can be determined according to the working conditions and is not limited here.

[0038] Preferably, such as Figures 3-5 As shown, the first force measuring element 24 is a tension / compression sensor, which is hinged to one side of the first grinding component 23 and connected to the other side through the first force measuring element 24. This configuration allows for the generation of measurement values ​​during the grinding operations performed by the first grinding component 23 on the rail head, rail web, and rail bottom. Specifically, when grinding the top surface of the rail head, the first force measuring element 24 is subjected to tension, while when grinding the side surface of the rail (including the side surface of the rail head and the rail web) and the rail bottom, the first force measuring element 24 is subjected to pressure. This enables a single measuring element to measure the force throughout the entire grinding process. The structure is simple, and the use of the same measuring element avoids deviations caused by measurements from different measuring elements, resulting in more accurate measurements.

[0039] Preferably, the first grinding component 23 can be a grinding wheel (grinding roller) grinding device or a grinding belt grinding device; the wheel surface (roller surface) or belt surface is directly opposite the weld bead.

[0040] More preferably, such as Figure 2As shown, the first drive assembly 22 is a belt drive assembly; the first grinding element 23 is a grinding belt, which is wound around the first drive assembly 22, and the part of the grinding belt that adheres to the first grinding roller 224 of the first drive assembly 22 is the grinding part. The part of the grinding part that adheres to the first grinding roller 224 is greater than or equal to half the circumference of the first grinding roller 224. Based on the use of a grinding belt, it is beneficial to cool down the grinding position of the grinding belt and ensure the grinding quality. The grinding belt is wound around at least half of the roller surface of the first grinding roller 224. Thus, the grinding belt at the top, bottom and the side facing the rail of the first grinding roller 224 are all used as grinding parts. The grinding belt on one grinding roller can be used to grind the rail head, rail web and rail bottom.

[0041] More preferably, such as Figure 6 As shown, the first grinding roller 224 includes a first cylindrical body 2241 and a first protective structure 2242. The first protective structure 2242 is disposed at both ends of the first cylindrical body 2241 and protrudes radially from the circumferential surface of the first cylindrical body 2241, and is higher than the grinding belt. Optionally, the first protective structure 2242 is an annular flange integrally formed on both ends of the side of the first cylindrical body 2241. The first protective structure 2242 is higher than the surface of the grinding belt to ensure that the grinding belt does not grind the rail structure other than the weld bead. Optionally, the first protective structure 2242 is 0.3 mm higher than the surface, or it can be other sizes, depending on the grinding requirements.

[0042] More preferably, the first protective structure 2242 is a circular plate-shaped structure coaxially arranged with the first cylindrical body 2241, which can rotate relative to the first cylindrical body 2241, that is, it is arranged parallel to the end face of the first cylindrical body 2241. Based on this, the first protective structure 2242 does not rotate with the first cylindrical body 2241, but rolls along the surface of the rail. Thus, the wear of the first protective structure 2242 when it contacts the surface of the rail can be reduced, ensuring its limiting effect.

[0043] Preferably, the grinding belt is a grinding section corresponding to the top, bottom and side facing the rail of the first grinding roller 224, wherein the top is used to grind the bottom of the rail, the bottom is used to grind the top of the rail, and the side facing the rail is used to grind the web of the rail.

[0044] Preferably, such as Figure 2 As shown, it also includes a first cooling fan 25 disposed inside the circumferential grinding belt, and the air outlet direction is away from the position where the first grinding piece 23 contacts the rail. The first cooling fan 25 is used to cool the grinding belt to prevent its temperature from being too high and affecting the grinding effect.

[0045] Preferably, such as Figure 2As shown, the first mounting frame 21 includes a first mounting plate 211 and a first support 212; one side of the first support 212 is hinged to the first mounting plate 211, with the hinge shaft arranged along the extension direction of the rail, and the other side is connected to the first mounting plate 211 through a first force measuring element 24; the first drive assembly 22 includes a first motor 221, a first drive roller 222, a plurality of first driven rollers 223 and a first grinding roller 224; the first motor 221 and the plurality of first driven rollers 223 are mounted on the first mounting plate 211; the first drive roller 222 is connected to the rotating shaft of the first motor 221; the first grinding roller 224 is mounted on the first support 212; the grinding belt is wound around the first drive roller 222, the plurality of first driven rollers 223 and the first grinding roller 224, and the grinding belts on both sides of the first grinding roller 224 are parallel, and the grinding belt corresponding to the grinding belt that adheres to the first grinding roller 224 is the grinding part.

[0046] More preferably, it also includes a first tensioning pulley 225 for maintaining the tension of the grinding belt.

[0047] In some preferred embodiments, such as Figure 2 As shown, the first grinding assembly 2 also includes a first cooling fan 25; the first cooling fan 25 is used to cool the first grinding part 23. Preferably, the air outlet direction of the first cooling fan 25 is away from the position where the first grinding assembly 2 contacts the rail; that is, the air outlet direction is not towards the grinding position to avoid the falling debris from scattering and causing environmental pollution.

[0048] In some preferred embodiments, such as Figure 2 As shown, the second grinding assembly 4 includes a second mounting bracket 41, a second drive assembly 42, a second grinding element 43, and a second force measuring element 44. The second mounting bracket 41 is fixedly mounted on the moving end of the second displacement assembly 5. The second drive assembly 42 is mounted on the second mounting bracket 41 and is used to drive the second grinding element 43. One side of the second grinding element 43 is hinged to the second mounting bracket 41 so that it can rotate along a direction perpendicular to the extension of the rail, and the other side is fixedly connected to the second mounting bracket 41 through the second force measuring element 44. Specifically, the second grinding element 43 is connected to the measuring end of the second force measuring element 44. The force measuring element 44 is fixed on the second mounting bracket 41. The second force measuring element 44 is used to measure the force between the second grinding part 43 and the rail when the second grinding part 43 grinds the rail head, rail web and rail bottom. Based on the measurement of the force during grinding by the second force measuring element 44, the feed amount of the second displacement component 5 can be adjusted based on the measured value to ensure that the force is within a suitable range, so as to avoid damage to the drive equipment of the second grinding part 43 due to excessive force, and to avoid affecting the grinding efficiency due to insufficient force. The specific force range can be determined according to the working conditions and is not limited here.

[0049] Preferably, such as Figures 3-5As shown, the second force measuring element 44 is a tension / compression sensor, which is hinged to one side of the second grinding component 43 and connected to the other side via the second force measuring element 44. This configuration allows for the generation of measurement values ​​during the grinding operations performed by the second grinding component 43 on the rail head, rail web, and rail bottom. Specifically, when grinding the top surface of the rail head, the second force measuring element 44 is subjected to tension, while when grinding the sides of the rail (including the rail head side and rail web) and the rail bottom, the second force measuring element 44 is subjected to pressure. This enables a single measuring element to measure the force throughout the entire grinding process. The structure is simple, and the use of the same measuring element avoids deviations caused by measurements from different measuring elements, resulting in more accurate measurements.

[0050] Preferably, the second grinding component 43 can be a grinding wheel (grinding roller) grinding device or a grinding belt grinding device; the wheel surface (roller surface) or belt surface is directly opposite the weld bead.

[0051] More preferably, such as Figure 2 As shown, the second drive assembly 42 is a belt drive assembly; the second grinding element 43 is a grinding belt, which is wound around the second drive assembly 42, and the part of the grinding belt that adheres to the second grinding roller 424 of the second drive assembly 42 is the grinding part. The part of the grinding part that adheres to the second grinding roller 424 is greater than or equal to half the circumference of the second grinding roller 424. Based on the use of a grinding belt, it is beneficial to cool down the grinding position of the grinding belt and ensure the grinding quality. The grinding belt is wound around at least half of the roller surface of the second grinding roller 424. Thus, the grinding belt at the top, bottom and the side facing the rail of the second grinding roller 424 are all used as grinding parts. The grinding belt on one grinding roller can be used to grind the rail head, rail web and rail bottom.

[0052] More preferably, such as Figure 7 As shown, the second grinding roller 424 includes a second cylindrical body 4241 and a second protective structure 4242. The second protective structure 4242 is disposed at both ends of the second cylindrical body 4241 and protrudes radially from the circumferential surface of the second cylindrical body 4241, and is higher than the grinding belt. Optionally, the second protective structure 4242 is an annular flange integrally formed on both ends of the side of the second cylindrical body 4241. The second protective structure 4242 is higher than the surface of the grinding belt to ensure that the grinding belt does not grind the rail structure other than the weld bead. Optionally, the second protective structure 4242 is 0.3 mm higher than the surface, or it can be other sizes, depending on the grinding requirements.

[0053] More preferably, the second protective structure 4242 is a circular plate-shaped structure coaxially arranged with the second cylindrical body 4241, which can rotate relative to the second cylindrical body 4241, that is, it is arranged parallel to the end face of the second cylindrical body 4241. Based on this, the second protective structure 4242 does not rotate with the second cylindrical body 4241, but rolls along the surface of the rail. This reduces the wear when the second protective structure 4242 contacts the surface of the rail and ensures its limiting effect.

[0054] Preferably, the grinding belt corresponds to the top, bottom and side facing the rail of the second grinding roller 424 as the grinding part for grinding, wherein the top is used for grinding the bottom of the rail, the bottom is used for grinding the top of the rail, and the side facing the rail is used for grinding the web of the rail.

[0055] Preferably, it also includes a second cooling fan 45 disposed inside the circumferential grinding belt, and the air outlet direction is away from the position where the second grinding piece 43 contacts the rail. The second cooling fan 45 is used to cool the grinding belt to prevent its temperature from being too high and affecting the grinding effect.

[0056] Preferably, such as Figure 2 As shown, the second mounting frame 41 includes a second mounting plate 411 and a second support 412; one side of the second support 412 is hinged to the second mounting plate 411, with the hinge shaft arranged along the extension direction of the rail, and the other side is connected to the second mounting plate 411 through a second force measuring element 44; the second drive assembly 42 includes a second motor 421, a second drive roller 422, a plurality of second driven rollers 423 and a second grinding roller 424; the second motor 421 and the plurality of second driven rollers 423 are mounted on the second mounting plate 411; the second drive roller 422 is connected to the rotating shaft of the second motor 421; the second grinding roller 424 is mounted on the second support 412; the grinding belt is wound around the second drive roller 422, the plurality of second driven rollers 423 and the second grinding roller 424, and the grinding belts on both sides of the second grinding roller 424 are parallel, and the grinding belt corresponding to the grinding belt that adheres to the second grinding roller 424 is the grinding part.

[0057] More preferably, it also includes a second tensioning pulley 425 for maintaining the tension of the grinding belt.

[0058] In some preferred embodiments, the second grinding assembly 4 further includes a second cooling fan 45; the second cooling fan 45 is used to cool the second grinding component 43. Preferably, the air outlet direction of the second cooling fan 45 is away from the position where the second grinding assembly 4 contacts the rail; that is, the air outlet direction is not towards the grinding position to avoid the falling debris from scattering and causing environmental pollution.

[0059] In some preferred embodiments, the mobile frame 1 includes a frame 11, first traveling wheels 12, and a first clamping assembly 13; a first grinding assembly 2, a first displacement assembly 3, a second grinding assembly 4, and a second displacement assembly 5 are mounted on the top of the frame 11, and the first traveling wheels 12 and the first clamping assembly 13 are mounted on the bottom; the first traveling wheels are used to move on the rails, that is, the first traveling wheels 12 are used to roll on the rail head of the rail being ground; the first clamping assembly 13 is used to clamp the side of the rail head of the rail being ground to fix the position of the frame 11; based on the setting of the first traveling wheels 12 and the first clamping assembly 13, the grinder can move along the rail to grind different weld beads, which is convenient for on-site operation (with the installed rail); at the same time, the position is fixed by the first clamping assembly 13 clamping the two sides of the rail head, and the clamping is more stable.

[0060] In some preferred embodiments, such as Figure 8 and Figure 9 As shown, the first clamping assembly 13 includes a first body 131, a first clamping plate 132, and a first tightening bolt 133; the first body 131 has a first receiving groove 1311; the first receiving groove 1311 is used to receive the rail head of the rail; the first clamping plate 132 is disposed inside the first receiving groove 1311, for example, the first receiving groove 1311 is a groove with a square cross-section, the first clamping plate 132 is disposed parallel to the groove wall, and its top can be close to or away from the inner wall of the first receiving groove 1311. The inner wall of 311 is movable; one end of the first tightening bolt 133 passes through the first main body 131 and abuts against the first clamping plate 132, so that the first clamping plate 132 can abut against the rail head; when clamping the rail, the moving frame 1 is placed on the rail head, the rail head is located in the first receiving through groove 1311, the first clamping plate 132 is located on one side of the rail head, and the first tightening bolt 133 is turned until the first clamping plate 132 clamps the rail head (and clamps it with the inner wall of the first receiving through groove 1311 on the other side), and the position is fixed. Based on the movable first clamping plate 132 and the first tightening bolt 133 clamping the rail head, it can adapt to different rail head shapes and rail curvatures. When clamping, it can fit against the side of the rail head, making the clamping more stable and the applicability wider.

[0061] Preferably, the inner wall of the first receiving groove 1311 has a first receiving recess 1312 for receiving the first clamping plate 132; based on this, the width of the first receiving groove 1311 can be reduced; when installing the movable frame 1, the symmetry of the two sides is improved (the first grinding assembly 2 and the first displacement assembly 3, as well as the second grinding assembly 4 and the second displacement assembly 5 are symmetrically arranged).

[0062] In some preferred embodiments, the first clamping assembly 13 further includes a first retaining strip 134 and a first guide rod 135; the first retaining strip 134 surrounds the top of the first clamping plate 132 and its end is fixed to the inner wall of the first receiving through groove 1311; one end of the first guide rod 135 is fixed to the inner wall of the first receiving through groove 1311, and the other end is disposed on the first retaining strip 134; the first clamping plate 132 has a first through hole 1321; the first guide rod 135 passes through the first through hole 1321, and the first clamping plate 132 can move closer to or away from the inner wall of the first receiving through groove 1311 along the first guide rod 135, thereby clamping the rail head; the first guide rod 135 guides the movement direction of the first clamping plate 132 to ensure that it can clamp the side of the rail head, thereby ensuring the clamping area and clamping stability, and the first retaining strip 134 can improve the installation stability of the first guide rod 135.

[0063] Preferably, the size of the first through hole 1321 is larger than the cross-sectional size of the first guide rod 135. Based on this, the first clamping plate 132 can form different angles with the side of the clamped rail head to adapt to the clamping of rails with different curvatures, such as greater than 1-3mm.

[0064] Preferably, it includes at least two first guide rods 135; the two first guide rods 135 are arranged in parallel and spaced apart, which provides better guidance.

[0065] Preferably, the bottom of the first clamping plate 132 is lower than the bottom of the rail head and bends away from the inner wall of the first receiving groove 1311 to form a limiting part between it and the inner wall of the first receiving groove 1311 on the other side. The width of the limiting part is at least less than the maximum width of the rail head to prevent the rail head from detaching from the first clamping assembly 13.

[0066] Preferably, the mobile frame 1 is made of aluminum alloy to reduce the weight of the equipment and allow for on-site installation and disassembly at the edges.

[0067] In some preferred embodiments, the first displacement component 3 and the second displacement component 5 can be selected from existing XYZ displacement components, such as a combination of lead screw drive and slider guide rail, or other forms that can realize XYZ triaxial displacement.

[0068] In some preferred embodiments, such as Figure 1 As shown, the mobile frame 1 also includes multiple support legs 15, which are arranged around the bottom of the frame 11 to support the frame 11 and can be rotated to fit against the frame 11 for storage.

[0069] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A rail weld bead grinding machine for grinding both sides of rails, characterized in that, It includes a movable frame, a first grinding assembly, a first displacement assembly, a second grinding assembly, and a second displacement assembly; The mobile frame can be erected on the rails and can be moved and fixed on the rails; The first displacement component and the second displacement component are respectively mounted on the movable frame; The moving end of the first displacement component is connected to the first grinding component, and is used to drive the first grinding component to move along the XYZ axis; The moving end of the second displacement component is connected to the second grinding component, and is used to drive the second grinding component to move along the XYZ axis; The first grinding component and the second grinding component are respectively used to grind the weld beads on opposite sides of the rail.

2. The rail weld bead grinding machine for grinding both sides of the rail according to claim 1, characterized in that, The first grinding assembly includes a first mounting bracket, a first drive assembly, a first grinding element, and a first pressure measuring element; The first mounting bracket is fixedly mounted on the moving end of the first displacement component; The first drive component is mounted on the first mounting bracket and is used to drive the first grinding component; The first grinding element is hinged to the first mounting bracket on one side so that it can rotate in a direction perpendicular to the extension of the rail, and the other side is fixed to the first mounting bracket through the first pressure measuring element. The first pressure measuring element is used to measure the force between the first grinding element and the rail when the first grinding element grinds the rail head, rail web and rail bottom of the rail.

3. The rail weld bead grinding machine for grinding both sides of the rail according to claim 2, characterized in that, The first polishing component also includes a first cooling fan; The first cooling fan is used to cool the first polished part.

4. The rail weld bead grinding machine for grinding both sides of the rail according to claim 1, characterized in that, The second grinding assembly includes a second mounting bracket, a second drive assembly, a second grinding element, and a second pressure measuring element; The second mounting bracket is fixedly mounted on the moving end of the second displacement component; The second drive component is mounted on the second mounting bracket and is used to drive the second grinding element; The second grinding element is hinged to the second mounting bracket on one side so that it can rotate along the direction perpendicular to the extension of the rail, and the other side is fixed to the second mounting bracket through the second pressure measuring element; The second pressure measuring element is used to measure the force between the second grinding element and the rail when the second grinding element grinds the rail head, rail web and rail bottom of the rail.

5. The rail weld bead grinding machine for grinding both sides of the rail according to claim 4, characterized in that, The second polishing component also includes a second cooling fan; The second cooling fan is used to cool the second polished part.

6. The rail weld bead grinding machine for grinding both sides of the rail according to claim 1, characterized in that, The mobile frame includes a frame, first traveling wheels, and a first clamping assembly; The first grinding component, the first displacement component, the second grinding component, and the second displacement component are installed on the top of the frame, and the first traveling wheel and the first clamping component are installed on the bottom. The first traveling wheel is used for movement on the rail; The first clamping assembly is used to clamp the rail head side of the rail during the grinding operation to fix the position of the vehicle frame.

7. The rail weld bead grinding machine for grinding both sides of the rail according to claim 6, characterized in that, The first clamping assembly includes a first body, a first clamping plate, and a first tightening bolt; The first body has a first receiving channel; The first receiving slot is used to receive the rail head of the rail; The first clamping plate is disposed inside the first receiving groove, and its top can be movably connected to the inner wall of the first receiving groove, either close to or away from the inner wall of the first receiving groove. One end of the first tightening bolt passes through the first body and abuts against the first clamping plate, so that the first clamping plate can abut against the rail head of the rail.

8. The rail weld bead grinding machine for grinding both sides of the rail according to claim 7, characterized in that, The first clamping assembly further includes a first retaining strip and a first guide rod; The first enclosure strip is installed around the top of the first clamping plate, and its end is fixed to the inner wall of the first receiving groove; One end of the first guide rod is fixed to the inner wall of the first receiving groove, and the other end is disposed on the first enclosure strip; The first clamping plate has a first through hole; The first guide rod passes through the first through hole, and the first clamping plate can move closer to or further away from the inner wall of the first receiving through groove along the first guide rod, thereby clamping the rail head of the rail.

9. The rail weld bead grinding machine for grinding both sides of the rail according to claim 7, characterized in that, The bottom of the first clamping plate is lower than the bottom of the rail head and bends away from the inner wall of the first receiving groove to form a shape limiting portion with the inner wall of the first receiving groove on the other side, so as to prevent the rail head of the rail from detaching from the first clamping assembly.

10. The rail weld bead grinding machine for grinding both sides of the rail according to claim 6, characterized in that, The mobile frame also includes multiple support legs, which are arranged around the bottom of the frame to support it.

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