A lithium battery-powered multi-functional rail grinding machine

Abstract

This utility model discloses a lithium-ion battery-powered multifunctional rail grinding machine, including a frame, and grinding components, a feed adjustment component, a contour wheel component, a handrail component, and a power battery pack component mounted on the frame. A pressure sensor monitors the grinding pressure in real time, and the feed adjustment component automatically adjusts the pressure between the grinding wheel and the rail to ensure the grinding pressure is always maintained at the optimal level. The feed method uses a motor-driven threaded transmission, which is simple, reliable, and offers high adjustment precision. The handrail component is reasonably designed, allowing for flexible adjustment of the grinding angle via an angle adjustment plate. Combined with the auxiliary wheel design, it can stably complete the grinding of the top, side, and curved surfaces of the rail. Powered by a lithium battery, it is convenient for field operations. This utility model has a reasonable structure, is easy to operate, and can improve the quality and efficiency of rail grinding.

Description

Technical Field

[0001] This utility model relates to the technical field of railway track maintenance equipment, specifically to a lithium-ion battery-powered multi-functional rail grinding machine. Background Technology

[0002] Over long-term use, steel rails may experience issues such as wavy wear, surface cracks, and spalling, requiring regular grinding and maintenance to ensure safe operation. Currently available rail grinding machines have the following problems:

[0003] Grinding pressure is difficult to control precisely. Most existing grinding machines adjust the grinding pressure manually based on experience, which can easily lead to excessive grinding pressure causing excessive wear on the rails, or insufficient pressure affecting the grinding effect.

[0004] Inaccurate feed rate adjustment. Traditional grinding machines have complex feed devices that are inconvenient to adjust and lack precise control methods, making it difficult to ensure consistent grinding quality.

[0005] The grinding angle adjustment is inflexible. Conventional grinding machines cannot achieve all-round grinding of the top surface, sides, and transition arc surfaces of the rails, affecting the grinding effect.

[0006] Insufficient battery life. Some grinders require an external power source, which is inconvenient for field operations, while battery-powered grinders have short battery life, affecting work efficiency. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a lithium battery multifunctional rail grinding machine. This grinding machine has the characteristics of automatic adjustment of grinding pressure, precise control of feed amount, and flexible adjustment of grinding angle.

[0008] To achieve the above objectives, the present invention provides a lithium-ion battery-powered multi-functional rail grinding machine, comprising a frame, and:

[0009] The grinding assembly, installed in the middle of the frame, is used for grinding the steel rails;

[0010] The feed adjustment component, installed on the grinding component, is used to adjust the feed amount of the grinding component when grinding the rail;

[0011] The contour wheel assembly is symmetrically installed at both ends of the frame to support the grinding machine as it moves on the rails;

[0012] The handrail assembly is rotatably connected to the frame, allowing the user to hold the grinder and adjust the grinding angle of the grinding assembly.

[0013] The power battery pack assembly, mounted on the frame, provides power to the grinding assembly and the feed adjustment assembly;

[0014] The polishing components include:

[0015] Grinding wheels are used for grinding steel rails;

[0016] The grinding wheel drive assembly is mounted on the frame and drives the grinding wheel to rotate via belt drive.

[0017] A pressure sensor is installed between the feed adjustment assembly and the grinding wheel;

[0018] Based on the pressure value from the pressure sensor, the feed adjustment component automatically adjusts the pressure between the grinding wheel and the rail.

[0019] In some optional embodiments of this utility model, the feed adjustment component includes:

[0020] The grinding wheel connecting shaft is coaxially connected to the grinding wheel and rotatably connected to the machine frame.

[0021] The feed drive shaft is located above the grinding wheel connecting shaft;

[0022] The feed drive motor is mounted on the frame and drives the feed transmission shaft to rotate.

[0023] The feed connecting sleeve has one end connected to the shaft on which the grinding wheel is suspended, and the other end threadedly connected to the feed drive shaft;

[0024] Based on the pressure value from the pressure sensor, the feed drive motor drives the feed transmission shaft to rotate, causing the feed connecting sleeve to move up and down, which in turn drives the grinding wheel connecting shaft to move up and down, thereby adjusting the pressure between the grinding wheel and the rail.

[0025] As a preferred embodiment, the grinder further includes a manual adjustment component fixed above the feed adjustment component; the manual adjustment component includes:

[0026] The handwheel mounting bracket is fixed to the feed adjustment assembly;

[0027] The handwheel lever has one end connected to the feed drive shaft via a coupling, and the other end extends out of the handwheel mounting base and is connected to the handwheel; the handwheel lever is rotatably connected to the handwheel mounting base.

[0028] In some optional embodiments of this utility model, the grinding assembly further includes: a tensioning assembly for tensioning the transmission belt of the grinding wheel drive assembly; the tensioning assembly includes:

[0029] A tensioning seat fixed on the frame; a tensioning shaft provided on the tensioning seat; a tensioning wheel rotatably connected to one end of the tensioning shaft; a tensioning adjusting shaft with one end threadedly connected to the tensioning shaft and the other end passing through the side wall of the tensioning seat; the tensioning seat is provided with a sliding groove, and the other end of the tensioning shaft passes through the tensioning seat and exits from the sliding groove, and is fixed to the tensioning seat by fasteners.

[0030] Preferably, the tensioning seat is provided with a tensioning spring; one end of the tensioning spring abuts against the inner wall of the tensioning seat, and the other end abuts against the outer wall of the tensioning shaft.

[0031] In some optional embodiments of this utility model, the armrest assembly includes:

[0032] Handrails, which are rotatably connected to the frame, allow users to hold the grinder;

[0033] The balance bar assembly is fixedly connected to the handrail at one end and can roll on the rail at the other end;

[0034] Adjusting plate support, fixed on the frame;

[0035] Angle adjustment plate, one end connected to the handrail, the other end connected to the adjustment plate support;

[0036] The angle adjustment plate is provided with an arc-shaped sliding groove. The angle between the handrail and the frame is adjusted along the arc-shaped sliding groove, and the angle adjustment shim is fixed to the adjustment plate by fasteners.

[0037] Preferably, the handrail is also provided with a set of symmetrical auxiliary wheels, and the contact surface between the auxiliary wheels and the rail is an inclined surface.

[0038] More preferably, each set of auxiliary wheels includes two, and the diameter of the auxiliary wheel located on the outer side of the rail is larger than that of the auxiliary wheel located on the inner side of the rail.

[0039] In some optional embodiments of this utility model, the grinding machine further includes two sets of impeller assemblies symmetrically arranged on the frame; the impeller assembly includes: an impeller support fixedly connected to the frame, and multiple impellers rotatably connected to the impeller support; the axes of the multiple impellers are located on the same horizontal plane.

[0040] Compared with the prior art, the present invention has the following advantages:

[0041] This invention uses a pressure sensor to monitor the grinding pressure in real time, and the feed adjustment component automatically adjusts the pressure between the grinding wheel and the rail to ensure that the grinding pressure is always kept at the optimal level, thereby improving the grinding quality and efficiency.

[0042] The feed adjustment component of this utility model adopts a motor-driven threaded transmission method, which has a simple and reliable structure, high adjustment accuracy, and can accurately control the grinding feed amount.

[0043] The handrail assembly of this utility model is reasonably designed. The grinding angle can be flexibly adjusted through the arc-shaped groove of the angle adjustment plate. Combined with the design of the auxiliary wheel, the grinding machine can stably complete the grinding work on the top surface, side surface and arc surface of the rail.

[0044] This invention uses a lithium battery for power, eliminating the need for an external power source, making it convenient for field operations, and it also has a long battery life.

[0045] The impeller assembly of this invention can effectively eliminate wavy wear on the surface of the rail and improve the smoothness of the grinding process.

[0046] This invention uses a pressure sensor to monitor grinding pressure in real time, and a feed adjustment component automatically adjusts the pressure between the grinding wheel and the rail to ensure that the grinding pressure is always maintained at the optimal level. It employs a motor-driven threaded feed method, which is simple, reliable, and offers high adjustment precision. The handrail assembly is rationally designed, allowing for flexible adjustment of the grinding angle via an angle adjustment plate. Combined with the auxiliary wheel design, it can stably complete the grinding of the top, sides, and curved surfaces of the rail. Powered by a lithium battery, it is convenient for field operations. This invention has a reasonable structure, is easy to operate, and can improve the quality and efficiency of rail grinding. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the disclosed embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below. These drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0048] Figure 1 This is a three-dimensional schematic diagram of the present invention. Figure 1 ;

[0049] Figure 2 This is a three-dimensional schematic diagram of the present invention. Figure 2 ;

[0050] Figure 3 This is a partial three-dimensional schematic diagram of the present invention;

[0051] Figure 4 This is a partial cross-sectional view of the present invention;

[0052] Figure 5 This is a schematic diagram of the structure of the manual adjustment component of this utility model;

[0053] Figure 6 This is a schematic diagram of the tensioning component of this utility model;

[0054] Figure 7 This is a three-dimensional schematic diagram of the tensioning component of this utility model;

[0055] Figure 8 This is a three-dimensional schematic diagram of the handrail assembly of this utility model;

[0056] Figure 9 This is a three-dimensional schematic diagram of the impeller assembly of this utility model. Detailed Implementation

[0057] The technical solution (including preferred technical solution) of this utility model will be further described in detail below with reference to the accompanying drawings and by listing some optional embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0058] Example 1

[0059] like Figure 1 and Figure 2 As shown, this embodiment provides a lithium-ion battery multi-functional rail grinding machine, including a frame 1, a grinding assembly 2, a feed adjustment assembly 3, a contour wheel assembly 4, a handrail assembly 5, and a power battery pack assembly 6.

[0060] Grinding assembly 2 is installed in the middle of frame 1 and is used to grind the rails; feed adjustment assembly 3 is installed on grinding assembly 2 and is used to adjust the feed amount of grinding assembly 2 when grinding the rails; contour wheel assembly 4 is symmetrically installed at both ends of frame 1 and is used to support the grinding machine to travel on the rails.

[0061] The handle assembly 5 is rotatably connected to the frame 1, allowing the user to hold the grinder and adjust the grinding angle of the grinding assembly 2. The power battery pack assembly 6 is mounted on the frame 1 to provide power to the grinding assembly 2 and the feed adjustment assembly 3.

[0062] like Figure 3 and Figure 4 As shown, the grinding assembly 2 includes a grinding wheel 21, a grinding wheel drive assembly 22, and a pressure sensor (not shown). The grinding wheel 21 is connected to the feed adjustment assembly 3 via a grinding wheel connecting shaft 24. The grinding wheel drive assembly 22 includes a drive motor 221, a drive pulley 222, and a transmission belt 223. The drive motor 221 is fixed on the frame 1, and the drive pulley 222 is mounted on its output shaft, driving the grinding wheel 21 to rotate via the transmission belt 223. The pressure sensor is installed between the grinding wheel connecting shaft 24 and the grinding wheel 21 for real-time monitoring of the grinding pressure.

[0063] In some embodiments of this utility model, a pressure sensor is installed between the feed connecting sleeve 31 of the grinding wheel connecting shaft 24 for real-time monitoring of grinding pressure.

[0064] The feed adjustment assembly 3 includes a feed drive shaft 32, a feed drive motor 33, and a feed connecting sleeve 31. The outer surface of the feed drive shaft 32 is threaded, and the inner surface of the feed connecting sleeve 31 is threaded to match the feed drive shaft 32. The feed drive motor 33 is connected to the feed drive shaft 32 via a belt drive. When abnormal grinding pressure is detected, the controller controls the feed drive motor 33 to rotate forward or backward, causing the feed drive shaft 32 to rotate and the feed connecting sleeve 31 to move up and down, thereby adjusting the pressure between the grinding wheel 21 and the rail.

[0065] Example 2

[0066] like Figure 3 and Figure 5 As shown, the grinder also includes a manual adjustment component 9 fixed above the feed adjustment component 3; the manual adjustment component 9 includes: a handwheel fixing seat 91, which is fixed to the feed adjustment component 3; a handwheel rod 92, one end of which is connected to the feed transmission shaft 31 through a coupling 93, and the other end of which passes through the handwheel fixing seat 91 and is connected to a handwheel 94; the handwheel rod 92 is rotatably connected to the handwheel fixing seat 91.

[0067] The grinder is equipped with automatic and manual modes. When the user selects the manual mode, the pressure between the grinding wheel 21 and the rail is displayed in real time for easy adjustment.

[0068] Example 3

[0069] like Figure 6 , Figure 7 As shown, the tensioning assembly 7 includes a tensioning seat 71, a tensioning shaft 72, a tensioning wheel 73, a tensioning adjusting shaft 74, and a tensioning spring 75. The tensioning seat 71 is fixed to the frame 1 and has a sliding groove 711. The tensioning shaft 72 passes through the sliding groove 711 and is fixed to the tensioning seat 71 by fastening screws. The tensioning wheel 73 is rotatably mounted on one end of the tensioning shaft 72 via a bearing. One end of the tensioning adjusting shaft 74 is threaded to the tensioning shaft 72, and the other end protrudes from the side wall of the tensioning seat 71 and is equipped with a handwheel. The tensioning spring 75 is sleeved on the tensioning shaft 72, with one end abutting against the inner wall of the tensioning seat 71 and the other end abutting against the outer wall of the tensioning shaft 72.

[0070] During use, rotating the tension adjusting shaft 74 by a certain amount causes the tension adjusting shaft 74 to drive the tensioning shaft 72 to move within the slide groove 711 via the thread, thereby adjusting the tension of the tensioning wheel 73 on the transmission belt. The tensioning spring 75 can apply preload to the tensioning wheel 73, ensuring that the transmission belt maintains appropriate tension during use and improving the reliability of the transmission.

[0071] Example 4

[0072] like Figure 8As shown, the handrail assembly 5 includes a handrail 51, a balance bar assembly 52, an adjustment plate support 53, and an angle adjustment plate 54. The handrail 51 is made of steel pipe and is U-shaped, with both ends rotatably connected to the frame 1 via bearings. The balance bar assembly 52 includes a balance bar 521 and a balance wheel 522. One end of the balance bar 521 is fixedly connected to the handrail 51, and the other end is equipped with the balance wheel 522. The balance wheel 522 can roll on adjacent steel rails to support the grinder and reduce the labor intensity of the operator.

[0073] The adjusting plate support 53 is fixed on the frame 1. One end of the angle adjusting plate 54 is welded and fixed to the handrail 51, and the other end is detachably connected to the adjusting plate support 53. The angle adjusting plate 54 is provided with an arc-shaped slide groove 541. By sliding in the arc-shaped slide groove 541 and tightening the bolt, the angle between the handrail 51 and the frame 1 is adjusted, thereby changing the grinding angle of the grinding assembly and realizing the grinding of the top surface, side surface and arc surface of the rail.

[0074] In this embodiment, two sets of auxiliary wheels 55 are symmetrically arranged on the handrail 51. Each set of auxiliary wheels 55 includes an outer auxiliary wheel 551 and an inner auxiliary wheel 552, with the diameter of the outer auxiliary wheel 551 being larger than the diameter of the inner auxiliary wheel 552. The contact surface between the auxiliary wheel 55 and the rail is inclined, which can better adapt to the contour of the rail and improve the stability of the grinding machine running on the rail.

[0075] Example 5

[0076] like Figure 9 As shown, the impeller assembly 8 includes an impeller support 81 and multiple impellers 82. The impeller support 81 is fixed to both ends of the frame 1, and eight impellers 82 are rotatably mounted on each impeller support 81. The axes of the impellers 82 are all located on the same horizontal plane. The impellers 82 are made of wear-resistant material, and the hardness of their outer circumferential surface is not less than HRC55.

[0077] During the grinding process, multiple impellers 82 can adapt to the unevenness of the rail surface, reducing the impact of wavy wear on the rail surface on the grinding effect. At the same time, since the axes of all impellers 82 are located on the same horizontal plane, it can ensure that the grinding machine runs smoothly on the rail, improving the smoothness of the grinding.

[0078] Example 6

[0079] This embodiment provides a polishing method based on automatic pressure control, including the following steps:

[0080] 1. The pressure sensor collects the pressure value between the grinding wheel and the rail in real time and transmits the data to the controller;

[0081] 2. The controller compares the collected pressure value with the preset pressure range;

[0082] 3. When the pressure value exceeds the upper limit of the preset range, the controller controls the feed drive motor to rotate forward, causing the grinding wheel to move upward and reducing the grinding pressure;

[0083] 4. When the pressure value is less than the lower limit of the preset range, the controller controls the feed drive motor to reverse, causing the grinding wheel to move downward and increasing the grinding pressure;

[0084] 5. When the pressure value is within the preset range, the feed drive motor keeps its current position unchanged.

[0085] In this way, the grinding pressure can always be kept within the optimal range, which ensures the grinding quality and avoids excessive wear on the rails.

[0086] In this embodiment, the pressure sensor has a sampling frequency of 100Hz, and the controller's response time is less than 10ms, enabling real-time adjustment of the grinding pressure. The preset pressure range can be adjusted according to different grinding conditions, and is generally set to 300N-500N.

[0087] Those skilled in the art will readily understand that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, combinations, substitutions, improvements, etc., made under the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A lithium electric multi-functional rail grinder comprising a frame, characterized in that, Also includes: The grinding assembly, installed in the middle of the frame, is used for grinding the steel rails; The feed adjustment component, installed on the grinding component, is used to adjust the feed amount of the grinding component when grinding the rail; The contour wheel assembly is symmetrically installed at both ends of the frame to support the grinding machine as it moves on the rails; The handrail assembly is rotatably connected to the frame, allowing the user to hold the grinder and adjust the grinding angle of the grinding assembly. The power battery pack assembly, mounted on the frame, provides power to the grinding assembly and the feed adjustment assembly; The polishing components include: Grinding wheels are used for grinding steel rails; The grinding wheel drive assembly is mounted on the frame and drives the grinding wheel to rotate via belt drive. A pressure sensor is installed between the feed adjustment assembly and the grinding wheel; Based on the pressure value from the pressure sensor, the feed adjustment component automatically adjusts the pressure between the grinding wheel and the rail.

2. The lithium electric multi-functional rail grinder according to claim 1, characterized in that, The feed adjustment component includes: The grinding wheel connecting shaft is coaxially connected to the grinding wheel and rotatably connected to the machine frame. The feed drive shaft is located above the grinding wheel connecting shaft; The feed drive motor is mounted on the frame and drives the feed transmission shaft to rotate. The feed connecting sleeve has one end connected to the shaft on which the grinding wheel is suspended, and the other end threadedly connected to the feed drive shaft; Based on the pressure value from the pressure sensor, the feed drive motor drives the feed transmission shaft to rotate, causing the feed connecting sleeve to move up and down, which in turn drives the grinding wheel connecting shaft to move up and down, thereby adjusting the pressure between the grinding wheel and the rail.

3. The lithium-ion battery-powered multi-functional rail grinding machine according to claim 2, characterized in that: The grinding machine also includes a manual adjustment component fixed above the feed adjustment component; the manual adjustment component includes: The handwheel mounting bracket is fixed to the feed adjustment assembly; The handwheel lever has one end connected to the feed drive shaft via a coupling, and the other end extends out of the handwheel mounting base and is connected to the handwheel; the handwheel lever is rotatably connected to the handwheel mounting base.

4. The lithium electric multi-functional rail grinder according to claim 1, characterized in that, The grinding assembly further includes: a tensioning assembly for tensioning the transmission belt of the grinding wheel drive assembly; the tensioning assembly includes: A tensioning seat fixed on the frame; a tensioning shaft provided on the tensioning seat; a tensioning wheel rotatably connected to one end of the tensioning shaft; a tensioning adjusting shaft with one end threadedly connected to the tensioning shaft and the other end passing through the side wall of the tensioning seat; the tensioning seat is provided with a sliding groove, and the other end of the tensioning shaft passes through the tensioning seat and exits from the sliding groove, and is fixed to the tensioning seat by fasteners.

5. The lithium electric multi-functional rail grinder according to claim 4, characterized in that, The tensioning seat is equipped with a tensioning spring; one end of the tensioning spring abuts against the inner wall of the tensioning seat, and the other end abuts against the outer wall of the tensioning shaft.

6. The lithium electric multi-functional rail grinder according to claim 1, characterized in that, The armrest assembly includes: Handrails, which are rotatably connected to the frame, allow users to hold the grinder; The balance bar assembly is fixedly connected to the handrail at one end and can roll on the rail at the other end; Adjusting plate support, fixed on the frame; Angle adjustment plate, one end connected to the handrail, the other end connected to the adjustment plate support; The angle adjustment plate is provided with an arc-shaped sliding groove. The angle between the handrail and the frame is adjusted along the arc-shaped sliding groove, and the angle adjustment shim is fixed to the adjustment plate by fasteners.

7. The lithium electric multi-functional rail grinder according to claim 6, characterized in that: The handrail is also equipped with a set of symmetrical auxiliary wheels, and the contact surface between the auxiliary wheels and the rail is an inclined surface.

8. The lithium electric multi-functional rail grinder according to claim 7, characterized in that: Each set of auxiliary wheels includes two, and the diameter of the auxiliary wheel located on the outer side of the rail is larger than that of the auxiliary wheel located on the inner side of the rail.

9. The lithium electric multi-functional rail grinder according to claim 1, characterized in that: The polishing machine further comprises two sets of wave wheel assemblies symmetrically arranged on the frame; each wave wheel assembly comprises a wave wheel support fixedly connected with the frame, and a plurality of wave wheels rotatably connected with the wave wheel support; the wave wheel shafts of the plurality of wave wheels are located on the same horizontal plane.

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