Automatic grinding equipment for steel rail welding seam

Abstract

The utility model relates to a steel rail welding seam automatic polishing device which comprises a frame body, a steel rail welding seam automatic polishing device and a steel rail welding seam automatic polishing device. The grinding device is arranged on the frame body and comprises a grinding assembly, a feeding assembly, a transverse moving assembly and a swinging assembly, the feeding assembly, the transverse moving assembly and the swinging assembly are connected to the grinding assembly, the grinding assembly is used for driving a grinding wheel to grind the steel rail, the feeding assembly and the swinging assembly are used for driving the grinding assembly to feed, transversely move and swing, and the feeding assembly is arranged above the grinding assembly; the driving unit comprises a plurality of profiling wheels arranged on the frame body, and the profiling wheels are connected to the steel rail to be polished in a rolling mode; and the power unit is used for supplying power to the grinding device. The feeding assembly is arranged above the grinding assembly, the problem that equipment is jacked up during grinding can be avoided, the grinding stroke can be increased, and the straightness of one meter can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to automatic grinding equipment for rail welds. Background Art

[0002] The straightness data within one meter of the rail weld is an important indicator for evaluating the weld grinding effect. Practice has shown that increasing the grinding distance can effectively improve the one-meter straightness index.

[0003] Regarding the existing automatic rail weld grinding equipment, such as the Chinese patent with publication number: CN2021103738667 and patent name "A rail grinding equipment", a rail grinding equipment is disclosed, which specifically includes a pair of active support frames and driven support frames arranged side by side and capable of walking along the rails, and a pair of transmission columns arranged in parallel and capable of vertical reciprocating and rotating together are horizontally connected between the active support frame and the driven support frame, and a grinding wheel is mounted on the bottom end. The active support frame is also provided with a first drive device. According to the actual operation performance analysis of the patent technical solution of the above-mentioned comparative document, it is found that there are the following two phenomena that affect the one-meter straightness index. The grinding module occupies a long reciprocating stroke, resulting in a short grinding distance. At the same time, during the grinding process, the grinder is lifted up due to its lightness, resulting in the problem of knife letting during grinding. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the grinding distance is short due to the long reciprocating stroke occupied by the grinding module, and the grinder is lifted up during the grinding process due to its lightness, resulting in the problem of knife letting go during grinding, thereby providing an automatic grinding device for rail welds.

[0005] In order to solve the above technical problems, the utility model provides a rail weld automatic grinding device, comprising:

[0006] A frame, wherein the frame is arranged on the rail to be polished;

[0007] The grinding device is arranged on the frame, and comprises: a grinding assembly, a feeding assembly, a traverse assembly and a swing assembly respectively connected to the grinding assembly, the grinding assembly is used to drive the grinding wheel to grind the rail, the feeding assembly and the swing assembly are respectively used to drive the grinding assembly to feed, traverse and swing, and the feeding assembly is arranged above the grinding assembly;

[0008] The driving unit comprises: a plurality of profiling wheels arranged on a frame, wherein the profiling wheels are rollingly connected to the rail to be polished;

[0009] A power unit is used to supply power to the grinding device.

[0010] In one embodiment of the present invention, the grinding assembly includes: a fixed guide plate, a grinding motor disposed on the guide plate, and a grinding wheel connected to an output end of the grinding motor.

[0011] In one embodiment of the utility model, a grinding wheel cover is further provided on the peripheral side of the grinding wheel, and the grinding wheel cover is provided with a guard plate, and the guard plates are provided in at least two groups and are arranged on the lower side of the grinding wheel cover.

[0012] In one embodiment of the utility model, the feed assembly includes: an upper guide plate and a lower guide plate respectively arranged on the upper and lower sides of the fixed guide plate, a feed motor arranged on the upper guide plate, a driving screw having one end connected to the end of the feed motor and the other end extending through the fixed guide plate and connected to the lower guide plate, and a screw nut fixed to the fixed guide plate and adapted to be matched with the driving screw.

[0013] In one embodiment of the utility model, the transverse movement assembly includes: at least two groups of synchronous pulleys respectively arranged at both ends of the frame, a synchronous belt rotatably mounted on the two groups of synchronous pulleys, a reciprocating motor whose output end is connected to at least one group of synchronous pulleys, and the lower guide plate is locked to the synchronous belt.

[0014] In one embodiment of the utility model, the lower guide plate is movably provided with a guide rod, the end of the guide rod is connected to a guide frame, the guide frame is connected to the lower guide plate through the guide rod, and the number of the guide rods is at least two groups.

[0015] In one embodiment of the utility model, the guide rod sleeve is provided with a dust cover, the dust cover is arranged between the guide frame and the lower guide plate, the lower guide plate is provided with a sleeve body, the guide rod is passed through the sleeve body, and the inner diameter of the sleeve body is larger than the outer diameter of the guide rod.

[0016] In one embodiment of the utility model, the swing assembly includes: a swing motor arranged on the frame, a first gear connected to the output end of the swing motor, a second gear meshed with the first gear, and the second gear is connected to the lower guide plate.

[0017] In one embodiment of the utility model, the second gear is connected to a guide frame, the guide frame is rotatably connected to a contour wheel, the contour wheel is rollingly connected to the rail to be polished, and the second gear is connected to the lower guide plate through the guide frame.

[0018] In one embodiment of the utility model, the frame is further provided with an electrical module, and the electrical module at least includes a display and a control unit, and the control unit is used to control the operation of the device.

[0019] The above technical solution of the utility model has the following advantages compared with the prior art:

[0020] The utility model discloses an automatic rail weld grinding device, wherein the device is placed on the rail to be ground through a frame body, and the stability of the device is ensured; the power unit is used to supply power to the grinding device; the driving unit provides movement and positioning of the device on the rail, so that the grinding device can accurately grind the rail; the profiling wheel contacts the rail to be ground, and provides movement and positioning of the device on the rail. The design of the contour wheels enables them to roll along the contour of the rail to ensure the stable operation of the equipment. The grinding assembly of the grinding device grinds the rail under the drive of the feed assembly, the transverse movement assembly and the swing assembly. The feed assembly drives the grinding assembly to feed in the height direction of the rail, so that the grinding assembly approaches the rail and grinds; the transverse movement assembly drives the grinding assembly to move in the width direction of the rail to achieve lateral displacement and grinding of the rail; the swing assembly drives the grinding assembly to rotate along the circumference of the rail, and cooperates with the feed assembly and the transverse movement assembly to grind the circumference of the weld. During grinding, the grinding wheel of the grinding assembly rotates at high speed, contacts with the surface of the rail and grinds. By controlling the movement and parameters of the grinding device, accurate grinding of the rail weld can be achieved, and defects such as weld nodules and burrs at the weld can be removed to make the rail surface smooth and flat. In addition, by arranging the feed assembly above the grinding assembly, the problem of the equipment being lifted during grinding can be avoided, and the grinding stroke can be increased to improve the straightness by one meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0022] Figure 1 It is a three-dimensional diagram of the grinding equipment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the swing assembly of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the grinding assembly and the feeding assembly of the utility model;

[0025] Figure 4 It is a partial cross-sectional view of the grinding assembly of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the transverse shifting assembly of the utility model.

[0027] Explanation of the reference numerals in the specification: 1. frame; 2. grinding assembly; 21. fixed guide plate; 22. grinding motor; 23. grinding wheel cover; 3. electrical module; 4. swing assembly; 41. swing motor; 42. first gear; 43. second gear; 5. feed assembly; 51. upper guide plate; 52. lower guide plate; 53. feed motor; 54. drive screw; 55. screw nut; 6. power unit; 7. transverse movement assembly; 71. reciprocating motor; 72. synchronous pulley; 73. synchronous belt; 74. guide rod; 75. guide frame; 76. contour wheel; 8. limit wheel. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0029] Example

[0030] Reference Figure 1-Figure 5 As shown, the utility model is a rail weld automatic grinding device, comprising:

[0031] A frame 1, wherein the frame 1 is arranged on the rail to be polished;

[0032] The grinding device is arranged on the frame 1, and comprises: a grinding assembly 2, a feeding assembly 5, a traverse assembly 7 and a swing assembly 4 respectively connected to the grinding assembly 2, the grinding assembly 2 is used to drive the grinding wheel to grind the rail, the feeding assembly 5 and the swing assembly 4 are respectively used to drive the grinding assembly 2 to feed, traverse and swing, and the feeding assembly 5 is arranged above the grinding assembly 2;

[0033] The driving unit comprises: a plurality of profiling wheels 76 arranged on the frame 1, wherein the profiling wheels 76 are rollingly connected to the rail to be polished;

[0034] The power unit 6 is used to supply power to the grinding device.

[0035] The utility model discloses an automatic rail weld grinding device, in which the device is placed on the rail to be ground through a frame 1 to ensure the stability of the device, and the power unit 6 is used to power the grinding device, and the driving unit provides movement and positioning of the device on the rail, so that the grinding device can accurately grind the rail, and the profiling wheel 76 contacts the rail to be ground, providing movement and positioning of the device on the rail. The design of the contour wheels 76 enables them to roll along the contour of the rail to ensure the stable operation of the equipment. The grinding assembly 2 of the grinding device is driven by the feed assembly 5, the transverse movement assembly 7 and the swing assembly 4 to grind the rail. The feed assembly 5 drives the grinding assembly 2 to feed in the height direction of the rail, so that the grinding assembly 2 approaches the rail and grinds it; the transverse movement assembly 7 drives the grinding assembly 2 to move in the width direction of the rail to achieve lateral displacement and grinding of the rail; the swing assembly 4 drives the grinding assembly 2 to rotate along the circumference of the rail, and cooperates with the feed assembly 5 and the transverse movement assembly 7 to grind the circumference of the weld. During grinding, the grinding wheel of the grinding assembly 2 rotates at a high speed, contacts with the surface of the rail and grinds it. By controlling the movement and parameters of the grinding device, accurate grinding of the rail weld can be achieved, defects such as weld nodules and burrs at the weld can be removed, and the surface of the rail can be smooth and flat. In addition, by arranging the feed assembly 5 above the grinding assembly 2, the problem of the equipment being lifted during grinding can be avoided.

[0036] Reference Figure 3-Figure 4 As shown, the grinding assembly 2 includes: a fixed guide plate 21, a grinding motor 22 arranged on the guide plate, and a grinding wheel connected to the output end of the grinding motor 22, the grinding motor 22 is arranged on the fixed guide plate 21, and the grinding motor 22 shaft and the main shaft of the grinding motor 22 are provided with keyways, the grinding motor 22 shaft key is connected to the main shaft, there are two main shaft limit bearings on the main shaft to limit the main shaft, the main shaft limit bearings are fixed in the shaft head fixing cover, a grinding wheel tray is fixed under the main shaft, and a grinding wheel is fixed under the grinding wheel tray.

[0037] Continue to refer to Figure 4 As shown, a grinding wheel cover 23 is also provided on the peripheral side of the grinding wheel, and the grinding wheel cover 23 is provided with a guard plate. The guard plates are provided in at least two groups and are provided on the lower side of the grinding wheel cover 23. The grinding wheel cover 23 and the guard plate are provided to effectively isolate the flying sparks, dust and debris generated in the grinding process, thereby reducing the pollution and damage to the working environment. The guard plate is fixed to the lower edge of the grinding wheel cover 23 by an adjustable bracket, and the position can be fine-tuned according to actual operation requirements to block the fragments that may be scattered due to the breakage or excessive wear of the grinding wheel, thereby protecting the safety of operators and peripheral equipment.

[0038] Reference Figure 3As shown, the feed assembly 5 includes: an upper guide plate 51 and a lower guide plate 52 respectively arranged on the upper and lower sides of the fixed guide plate 21, a feed motor 53 arranged on the upper guide plate 51, a driving screw 54 with one end connected to the end of the feed motor 53 and the other end extending through the fixed guide plate 21 and connected to the lower guide plate 52, and a screw nut 55 fixed to the fixed guide plate 21 and adapted to be matched with the driving screw 54. The upper guide plate 51 and the lower guide plate 52 are respectively installed on the upper and lower sides of the fixed guide plate 21, and together with the fixed guide plate 21, they form a stable frame structure. The lower guide plate 52 can move up and down, and is used to guide the workpiece platform or other carrying device to move smoothly in the vertical direction. The feed motor 53 is started according to a preset program or operator instruction, driving the lead screw 54 to rotate. Due to the spiral cooperation between the lead screw and the lead screw nut 55, the rotational motion is converted into linear motion, thereby pushing the lower guide plate 52 and the workbench or workpiece carrier connected thereto to move up and down precisely in the vertical direction. A telescopic rod or guide rod 74 is arranged between the fixed guide plate 21 and the lower guide plate 52, so that the lower guide plate 52 can only move up and down, and the limit accuracy is improved.

[0039] Reference Figure 5 The transverse movement assembly 7 shown includes: at least two groups of synchronous pulleys 72 respectively arranged at both ends of the frame 1, a synchronous belt 73 rotatably mounted on the two groups of synchronous pulleys 72, and a reciprocating motor 71 whose output end is connected to at least one group of synchronous pulleys 72. The lower guide plate 52 is locked to the synchronous belt 73. The reciprocating motor 71 drives a synchronous pulley 72 to rotate, so that the synchronous belt 73 can rotate in a cycle. The reciprocating motor 71 is a servo motor that can be reversed, driving the grinding assembly 2 to move back and forth. The synchronous belt 73 has a toothed structure embedded in it that meshes with the tooth shape of the synchronous pulley 72, thereby achieving smooth and slip-free power transmission under the drive of the motor. The lower guide plate 52 can be firmly attached to the synchronous belt 73 by using a locking clamp or a quick-release fastener.

[0040] Continue to refer to Figure 1 , Figure 5 As shown, the lower guide plate 52 is movably provided with a guide rod 74, the end of the guide rod 74 is connected to a guide frame 75, and the guide frame 75 is connected to the lower guide plate 52 through the guide rod 74. The number of the guide rods 74 is at least two groups, and the swing assembly 4 drives the lower guide plate 52 to swing to different angles through at least two groups of guide rods 74.

[0041] Reference Figure 1As shown, the guide rod 74 is provided with a dust cover, and the dust cover is arranged between the guide frame 75 and the lower guide plate 52. The lower guide plate 52 is provided with a sleeve body, and the guide rod 74 is passed through the sleeve body. The inner diameter of the sleeve body is larger than the outer diameter of the guide rod 74. The dust cover is made of a wear-resistant, oil-resistant, easy-to-clean flexible material, and is arranged in a W-shape and sleeved on the guide rod 74 to achieve axial expansion and contraction, effectively blocking external dust, cutting fluid, oil stains and other pollutants from entering the gap between the guide rod 74 and the sleeve body.

[0042] Reference Figure 2 As shown, the swing assembly 4 includes: a swing motor 41 arranged on the frame 1, a first gear 42 connected to the output end of the swing motor 41, and a second gear 43 meshed with the first gear 42, and the second gear 43 is connected to the lower guide plate 52. When the swing motor 41 rotates, the first gear 42 drives the rotation of the second gear 43 through gear meshing.

[0043] The second gear 43 is connected to a guide frame 75, and the guide frame 75 is rotatably connected to a profiling wheel 76, and the profiling wheel 76 is rollingly connected to the rail to be ground. The second gear 43 is connected to the lower guide plate 52 through the guide frame 75, and the profiling wheel 76, the frame body 1 and the guide rod 74 are connected through the guide frame 75. A rigid connection structure is adopted between the second gear 43 and the lower guide plate 52, such as bolt fixing or integrated design, so that the lower guide plate 52 can follow the rotation of the second gear 43 and make a corresponding swinging motion, and there is no delay in power transmission. Under the guidance of the guide plate, the grinding wheel not only rotates at high speed around its own axis for grinding, but also, driven by the lower guide plate 52, reciprocates on the surface of the workpiece, forming a composite motion trajectory to adapt to the shape of the weld path. The guide frame can also be provided with limiting wheels 8 on both sides of the rail to be ground to prevent the profiling wheel 76 from moving sideways and leaving the rail.

[0044] Reference Figure 1As shown, the frame 1 is also provided with an electrical module 3, which includes at least a display and a control unit. The control unit is used to control the operation of the equipment. The control unit sets grinding parameters, such as feed speed, traverse distance, swing angle, spindle start and stop, etc. The parameters can be adjusted according to specific grinding requirements and process parameters. The electrical module 3 is integrated into the frame 1 or attached to a position of the frame 1 that is easy to operate. The information displayed on the screen includes but is not limited to the currently set grinding parameters (such as feed speed, traverse distance, swing angle, spindle speed), working status indication, alarm information, and a simple operation menu. The operator can intuitively view and adjust various parameters through the touch screen or physical buttons (if applicable) to achieve real-time monitoring and control of the grinding process. The control unit can receive input instructions from the operation interface, convert them into specific motor control signals after analysis, and then accurately control the speed of the grinding motor 22, the movement mode of the swing motor 41, and other auxiliary functions. The control unit supports the preset of multiple grinding programs. The operator can quickly select or customize appropriate grinding parameters according to factors such as workpiece material, shape, and processing requirements, thereby realizing automation and refined management of the processing process. The power unit 6 is a rechargeable lithium battery.

[0045] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection created by the present utility model.

Claims

1. An automatic rail weld grinding device, characterized in that: include: A frame, wherein the frame is arranged on the rail to be polished; The grinding device is arranged on the frame, and comprises: a grinding assembly, a feeding assembly, a traverse assembly and a swing assembly respectively connected to the grinding assembly, the grinding assembly is used to drive the grinding wheel to grind the rail, the feeding assembly and the swing assembly are respectively used to drive the grinding assembly to feed, traverse and swing, and the feeding assembly is arranged above the grinding assembly; The driving unit comprises: a plurality of profiling wheels arranged on a frame, wherein the profiling wheels are rollingly connected to the rail to be polished; A power unit is used to supply power to the grinding device.

2. The rail weld automatic grinding device according to claim 1, characterized in that: The grinding assembly comprises: a fixed guide plate, a grinding motor arranged on the guide plate, and a grinding wheel connected to an output end of the grinding motor.

3. The rail weld automatic grinding device according to claim 2, characterized in that: A grinding wheel cover is also arranged on the peripheral side of the grinding wheel, and the grinding wheel cover is provided with a guard plate. The guard plates are arranged in at least two groups and are arranged on the lower side of the grinding wheel cover.

4. The rail weld automatic grinding device according to claim 1, characterized in that: The feed assembly includes: an upper guide plate and a lower guide plate respectively arranged on the upper and lower sides of the fixed guide plate, a feed motor arranged on the upper guide plate, a driving screw having one end connected to the end of the feed motor and the other end extending through the fixed guide plate and connected to the lower guide plate, and a screw nut fixed to the fixed guide plate and adapted to be matched with the driving screw.

5. The rail weld automatic grinding device according to claim 4, characterized in that: The transverse shift assembly includes: at least two sets of synchronous pulleys respectively arranged at the two ends of the frame, a synchronous belt rotatably mounted on the two sets of synchronous pulleys, a reciprocating motor whose output end is connected to at least one set of synchronous pulleys, and the lower guide plate is locked to the synchronous belt.

6. The rail weld automatic grinding device according to claim 4, characterized in that: The lower guide plate is movably provided with a guide rod, the end of the guide rod is connected to the guide frame, the guide frame is connected to the lower guide plate through the guide rod, and the number of the guide rods is at least two groups.

7. The rail weld automatic grinding device according to claim 6, characterized in that: The guide rod sleeve is provided with a dust cover, and the dust cover is arranged between the guide frame and the lower guide plate. The lower guide plate is provided with a sleeve body, and the guide rod is passed through the sleeve body. The inner diameter of the sleeve body is greater than the outer diameter of the guide rod.

8. The rail weld automatic grinding device according to claim 1, characterized in that: The swing assembly comprises: a swing motor arranged on the frame, a first gear connected to the output end of the swing motor, a second gear meshed with the first gear, and the second gear is connected to the lower guide plate.

9. The rail weld automatic grinding device according to claim 8, characterized in that: The second gear is connected to a guide frame, the guide frame is rotatably connected to a contour wheel, the contour wheel is rollingly connected to the rail to be polished, and the second gear is connected to the lower guide plate through the guide frame.

10. The rail weld automatic grinding device according to claim 1, characterized in that: The frame is also provided with an electrical module, which includes at least a display and a control unit, and the control unit is used to control the operation of the device.

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