A portable intelligent rail profiling milling device

Abstract

The utility model belongs to the technical field of steel rail maintenance, specifically relates to a portable intelligent steel rail profiling milling equipment, including frame assembly, be installed with traction system, lifting feed assembly, operation subassembly, side positioning mechanism, lithium battery system and electric control system on frame assembly, traction system and lifting feed assembly are installed on frame assembly, and operation subassembly is fixedly connected on lifting feed assembly, two side positioning mechanisms are fixedly connected at the front and rear ends of frame assembly respectively, and side positioning mechanism utilizes the steel rail body to be handled as positioning reference and positions frame assembly. The utility model can utilize the target steel rail to be handled as positioning reference and position the profiling milling equipment, and the automatic milling processing of the local small-range disease area of the steel rail body is realized, the processing precision is guaranteed, the high-precision maintenance demand is satisfied, the degree of intellectualization is high, the experience and the method of the operator are reduced, and the processing efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the field of rail maintenance technology, specifically relating to a portable intelligent rail profile milling device. Background Technology

[0002] As the core load-bearing component of rail transit, the surface profile accuracy of rails directly affects the safety and comfort of train operation, and routine maintenance is a key link in ensuring track performance. Currently, rail maintenance mainly relies on large milling or grinding machines. These machines are suitable for large-scale, full-line maintenance, but when dealing with localized or small-scale defects (such as high weld joints, unevenness in turnout areas, localized wear, etc.), they suffer from poor flexibility, high operating costs, and insufficient precision. Smaller machines are more suitable for targeted treatment.

[0003] Currently, the mainstream equipment for treating localized rail defects on the market is the hand-push grinding machine. Its technical solution is mainly based on internal combustion engine or lithium battery drive, which drives the grinding wheel to rotate at high speed through the power shaft or transmission mechanism to grind the rail surface. The grinding angle of the grinding wheel needs to be manually adjusted to cover the rail surface in a segmented grinding manner.

[0004] However, this type of equipment lacks a stable positioning reference, and the grinding effect depends entirely on the operator's experience and skills, resulting in a large deviation between the profile of the rail surface after grinding and the standard profile, making it difficult to meet the requirements of high-precision maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a portable intelligent rail profile milling device that can use the target rail to be processed as a positioning reference to position the profile milling device, thereby assisting in the automatic milling processing of local and small-scale defect areas of the rail body, ensuring processing accuracy, meeting the needs of high-precision maintenance, having a high degree of intelligence, reducing reliance on the experience and skills of operators, and having high processing efficiency.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A portable intelligent rail profile milling machine includes:

[0008] Chassis components;

[0009] A traction system, mounted on the chassis assembly, is used to drive the chassis assembly to move back and forth along the rail body;

[0010] The working assembly is used for milling operations on the rail body;

[0011] A lifting and feeding assembly is fixedly connected to the frame assembly, and the working assembly is fixedly connected to the lifting and feeding assembly. The lifting and feeding assembly is used to drive the working assembly to move vertically relative to the frame assembly in the vertical direction.

[0012] Two side positioning mechanisms are fixedly connected to the front and rear ends of the frame assembly, respectively. The side positioning mechanisms use the rail body to be processed as a positioning reference to position the frame assembly.

[0013] An electronic control system is fixedly connected to the chassis assembly and is used to control the traction system, lifting and feeding assembly, and working assembly.

[0014] The lithium battery system is fixedly connected to the frame assembly and is used to provide power to the traction system, lifting and feeding assembly, working assembly and electronic control system.

[0015] Furthermore, the frame assembly includes a main frame body, and a support beam is fixedly connected to one side of the main frame body.

[0016] The traction system includes a traction motor, two movable wheels and two motion shafts. The two motion shafts are rotatably connected to the front and rear ends of the lower side of the main frame of the vehicle. The two movable wheels are fixedly connected to the two motion shafts. The traction motor is fixedly connected to the main frame of the vehicle, and the output end of the traction motor is drivenly connected to one of the motion shafts.

[0017] The working component includes a spindle motor fixedly connected to the lifting and feeding component, and a profile milling cutter is fixedly connected to the output end of the spindle motor;

[0018] The lifting and feeding assembly includes a crossbeam fixedly connected to the main frame of the vehicle frame. A feed motor is fixedly connected to the upper side of the crossbeam. A first lead screw is fixedly connected to the output end of the feed motor. A threaded sleeve is threadedly connected to the outer side of the first lead screw. A lifting arm is fixedly connected to the lower side of the threaded sleeve. A main shaft motor is fixedly connected to the lower side of the lifting arm. Guide posts are fixedly connected to both ends of the lower side of the crossbeam. The guide posts and the lifting arm are slidably connected.

[0019] The side positioning mechanism includes a fixed frame fixedly connected to the main frame of the vehicle frame, a movable frame horizontally slidably connected to the fixed frame, and a second lead screw rotatably connected to the fixed frame. The second lead screw and the movable frame are threadedly connected, and clamping and limiting parts are assembled on the lower side of both the fixed frame and the movable frame.

[0020] Furthermore, the traction system also includes a chain and two sprockets, the two sprockets being fixedly connected to two motion shafts respectively, and the chain drive being connected to the outside of the two sprockets.

[0021] The technical effects achieved by this utility model are as follows:

[0022] This utility model discloses a portable intelligent rail profile milling device. Through the setting of a side positioning mechanism, it can use the target rail to be processed as a positioning reference to position the frame assembly, thereby realizing the left and right limit of the working assembly. This ensures that the working surface of the working assembly is accurately aligned with the target rail, reducing the difficulty of auxiliary positioning of the working assembly during the milling operation. In conjunction with the electronic control system to control the traction system, lifting and feeding assembly, and working assembly, it can realize automatic milling processing of local and small-scale defect areas of the rail body, ensuring processing accuracy, meeting the needs of high-precision maintenance, and having a high degree of intelligence, reducing the dependence on the experience and skills of the operator, and having high processing efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the combined structure of the vehicle frame assembly and traction system of this utility model;

[0025] Figure 3 This is a structural schematic diagram of the frame assembly of this utility model;

[0026] Figure 4 This is a schematic diagram of the combined structure of the lifting and feeding component and the working component of this utility model;

[0027] Figure 5 This is a schematic diagram of the side positioning mechanism of this utility model;

[0028] Figure 6 This is a schematic diagram of the side positioning mechanism of this utility model positioned on the rail body.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 100. Chassis assembly; 101. Main frame of the chassis; 102. Transfer support wheel; 103. Support beam; 104. Auxiliary support wheel; 200. Traction system; 201. Traction motor; 202. Sprocket; 203. Chain; 204. Moving wheel; 205. Motion shaft; 300. Lifting and feeding assembly; 301. Crossbeam; 302. Feed motor; 303. First lead screw; 304. Lifting arm; 305. Guide column; 400. Working assembly; 401. Main spindle motor; 402. Profile milling cutter; 500. Side positioning mechanism; 501. Fixed frame; 502. Movable frame; 503. Handwheel; 504. Disc spring; 505. Second lead screw; 506. Bearing; 507. Nut; 600. Lithium battery system; 700. Electronic control system; 800. Rail body. Detailed Implementation

[0031] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0032] like Figures 1-6 As shown, a portable intelligent rail profile milling device is used to treat the local and small-scale defects of a rail body 800 as the target rail.

[0033] The portable intelligent rail profile milling equipment includes a frame assembly 100, on which a traction system 200, a lifting and feeding assembly 300, a working assembly 400, a side positioning mechanism 500, a lithium battery system 600, and an electronic control system 700 are mounted. The traction system 200, the lifting and feeding assembly 300, and the working assembly 400 are all electrically connected to the lithium battery system 600 and the electronic control system 700.

[0034] Among them, the frame assembly 100 serves as the main support structure of the portable intelligent rail contour milling equipment;

[0035] like Figures 1-3 As shown, in some embodiments, the frame assembly 100 includes a main frame 101, and a support beam 103 is fixedly connected to one side of the main frame 101. The main frame 101 and the support beam 103 can form a bracket that spans two rail bodies 800.

[0036] It should be noted that an auxiliary support wheel 104 is fixedly connected to the lower side of the support beam 103. By setting a rotatable auxiliary support wheel 104 to replace the support beam 103 in contact with the rail body 800, the friction during movement can be effectively reduced.

[0037] A transfer support wheel 102 is fixedly connected to the middle position of the lower side of the combination of the main frame 101 and the support beam 103. During transfer, the transfer support wheel 102 can contact the ground to facilitate the transfer of the milling equipment and improve the portability of the equipment.

[0038] The traction system 200 is installed on the frame assembly 100 and is used to drive the milling equipment frame assembly 100 to move back and forth along the rail body 800.

[0039] like Figures 1-3 As shown, in some embodiments, the traction system 200 includes a traction motor 201, a chain 203, two sprockets 202, two movable wheels 204, and two motion shafts 205;

[0040] Two motion shafts 205 are rotatably connected to the front and rear ends of the lower side of the main frame 101 of the vehicle frame, respectively. Two movable wheels 204 are fixedly connected to the two motion shafts 205, serving as the front wheel and the rear wheel. At this time, the two movable wheels 204 are located on one of the rail bodies 800, and the auxiliary support wheel 104 is located on the other rail body 800. Through the auxiliary support wheel 104 and the movable wheels 204, the vehicle frame assembly 100 can move relatively easily on the two rail bodies 800.

[0041] Two sprockets 202 are fixedly connected to two motion shafts 205 respectively. The chain 203 is connected to the outside of the two sprockets 202, so that the transmission between the two motion shafts 205 can be completed, and the two moving wheels 204 can rotate synchronously, so that the front wheel and the rear wheel can both act as drive wheels to drive the main frame 101 of the vehicle frame to move on the rail body 800.

[0042] The lithium battery system 600 and the electronic control system 700 are both electrically connected to the traction motor 201. The traction motor 201 is fixedly connected to the main frame 101 of the vehicle frame, and the output end of the traction motor 201 is connected to one of the motion shafts 205 for transmission, so as to input rotational kinetic energy to the motion shaft 205.

[0043] Among them, the working component 400 is used to perform milling operations on the rail body 800;

[0044] like Figure 1 and Figure 4 As shown, in some embodiments, the working component 400 includes a spindle motor 401 fixedly connected to the lifting and feeding component 300. The lithium battery system 600 and the electronic control system 700 are both electrically connected to the spindle motor 401. A profile milling cutter 402 is fixedly connected to the output end of the spindle motor 401. By starting the spindle motor 401, the profile milling cutter 402 can be driven to rotate. The profile milling cutter 402 rotates at a constant speed to perform milling operations. Compared with traditional grinding operations, milling operations can reduce dust generated during the operation, resulting in less pollution and reducing occupational health hazards. Moreover, compared with grinding, the milling method is more efficient in treating local and small-scale defects such as weld joints and turnouts.

[0045] It should be further explained that a magnetic rod can also be fixedly connected to the main frame 101 of the vehicle frame. The magnetic force of the magnetic rod can be used to attract, collect and recycle the iron filings generated during the operation.

[0046] The lifting and feeding assembly 300 is fixedly connected to the frame assembly 100, and the working assembly 400 is fixedly connected to the lifting and feeding assembly 300. The lifting and feeding assembly 300 is used to drive the working assembly 400 to move vertically relative to the frame assembly 100 in the vertical direction. The milling equipment is driven to move back and forth along the rail body 800 through the traction system 200. In conjunction with the lifting and feeding assembly 300 to drive the working assembly 400 to move vertically, the milling cutter 402 can realize the functions of slope entry, slope exit, and cutter lifting protection in the rail milling process. By realizing slope entry and slope exit, the impact on the smoothness of the rail body 800 can be reduced.

[0047] like Figures 1-2 and Figure 4 As shown, in some embodiments, the lifting and feeding assembly 300 includes a crossbeam 301 fixedly connected to the main frame 101 of the vehicle frame. A feed motor 302 is fixedly connected to the upper side of the crossbeam 301. The lithium battery system 600 and the electronic control system 700 are both electrically connected to the feed motor 302. A first lead screw 303 is fixedly connected to the output end of the feed motor 302. A threaded sleeve is threadedly connected to the outer side of the first lead screw 303. A lifting arm 304 is fixedly connected to the lower side of the threaded sleeve. A main shaft motor 401 is fixedly connected to the lower side of the lifting arm 304.

[0048] In order to guide the movement direction of the lifting arm 304, guide columns 305 are fixedly connected to both ends of the lower side of the cross beam 301, and the guide columns 305 and the lifting arm 304 are slidably connected.

[0049] When the working component 400 is moved vertically, the feed motor 302 is started to drive the first lead screw 303 to rotate, which in turn drives the lifting arm 304 to move vertically, thereby achieving precise and stable movement of the working component 400.

[0050] It is important to note that another core aspect of this technical solution is the setting of the side positioning mechanism 500. There are two side positioning mechanisms 500, which are fixedly connected to the front and rear ends of the frame assembly 100, respectively. The side positioning mechanism 500 uses the target rail to be processed as a positioning reference to position the frame assembly 100, thereby achieving left and right limit of the working component 400. This ensures that the working surface of the working component 400 (the milling area of ​​the profile milling cutter 402) is accurately aligned with the target rail, reducing the reliance on the operator's experience and skills, reducing the difficulty of positioning the working component 400 during operation, and improving the accuracy of the milling operation of the working component 400.

[0051] like Figures 1-2 and Figures 5-6As shown, in some embodiments, the side positioning mechanism 500 includes a fixed frame 501 fixedly connected to the main frame 101 of the vehicle frame, and a movable frame 502 horizontally slidably connected to the fixed frame 501. The movable frame 502 can move left and right on the upper side of the rail body 800 by sliding the movable frame 502. A second lead screw 505 is also rotatably connected to the fixed frame 501. The second lead screw 505 and the movable frame 502 are threadedly connected. The movable frame 502 can be driven to slide by rotating the handwheel 503. After the sliding is completed, the position of the movable frame 502 is locked by the second lead screw 505.

[0052] It should be noted that both the fixed frame 501 and the movable frame 502 are equipped with clamping and limiting parts on their lower sides. When the movable frame 502 moves, it can be clamped on the left and right sides of the rail body 800 by the two clamping and limiting parts respectively, thus completing the left and right limiting of the opposite side positioning mechanism 500.

[0053] In some further embodiments, the clamping and limiting part is a block structure fixedly connected to the lower side of the fixed frame 501 or the movable frame 502.

[0054] In some further embodiments, the clamping and limiting part is a bearing 506 rotatably connected to the lower side of the fixed frame 501 or the movable frame 502. By rotating the bearing 506, the friction between the side positioning mechanism 500 and the rail body 800 can be reduced while the side positioning mechanism 500 is limited to the left and right.

[0055] In some implementations, the kinetic energy input method of the second lead screw 505 is manual rotation. In this case, a handwheel 503 can be fixedly connected to the end of the second lead screw 505 to facilitate the user to rotate the second lead screw 505.

[0056] In some other embodiments, the kinetic energy input of the second lead screw 505 is electric, thereby realizing the electric adjustment of the position of the bearing 506. In this case, a servo motor can be fixedly connected to the fixed frame 501. The lithium battery system 600 and the electronic control system 700 are both electrically connected to the servo motor. The servo motor can be started by the electronic control system 700, thereby automatically realizing the adjustment of the opposite side positioning mechanism 500.

[0057] The outer side of the second lead screw 505 is also threaded with a nut 507. A disc spring 504 is sleeved on the outer side of the second lead screw 505, located between the movable frame 502 and the nut 507. The disc spring 504 can reduce the phenomenon of accidental rotation and loosening of the second lead screw 505.

[0058] The electronic control system 700 is fixedly connected to the frame assembly 100 and is used to control the traction system 200, the lifting and feeding assembly 300, and the working assembly 400.

[0059] During operation, parameters such as cutting depth, feed speed, and spindle speed can be set through the electronic control system 700. The parameters can be selected on-site according to the actual rail conditions of the rail body 800. After the settings are completed, the traction system 200, lifting and feeding assembly 300, and working assembly 400 can be controlled through the electronic control system 700 to carry out the work, realizing automatic milling of the rail body 800, with a high degree of intelligence.

[0060] The lithium battery system 600 is fixedly connected to the frame assembly 100 and is used to provide power to the traction system 200, the lifting and feeding assembly 300, the working assembly 400 and the electronic control system 700.

[0061] The working principle of this utility model is as follows:

[0062] The spindle motor 401 drives the profile milling cutter 402 to rotate at a constant speed. The lifting and feeding assembly 300 drives the working assembly 400 to descend to the set cutting depth position. The traction system 200 moves the entire equipment along the rail body 800 to perform milling. This enables the milling of the rail body 800. During the milling process, the lateral positioning of the profile milling cutter 402 and the rail body 800 is achieved by the side positioning mechanism 500.

[0063] In summary, this technical solution, through the side positioning mechanism 500, can use the target rail to be processed as a positioning reference to position the frame assembly 100, thereby achieving left and right limit of the working assembly 400. This ensures that the working surface of the working assembly 400 is accurately aligned with the target rail, reducing the difficulty of auxiliary positioning of the working assembly 400 during operation. In conjunction with the electronic control system 700 to control the traction system 200, the lifting and feeding assembly 300, and the working assembly 400, it can realize automatic milling processing of local and small-scale defect areas of the rail body 800. It has a high degree of intelligence, reduces the dependence on the experience and skills of the operator, has high processing efficiency, and the overall size of the equipment is small and easy to carry.

[0064] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A portable intelligent rail profile milling machine, characterized in that: include: Chassis assembly (100); A traction system (200), mounted on the frame assembly (100), is used to drive the frame assembly (100) to move back and forth along the rail body (800); The working assembly (400) is used for milling the rail body (800); A lifting and feeding assembly (300) is fixedly connected to the frame assembly (100), and the working assembly (400) is fixedly connected to the lifting and feeding assembly (300). The lifting and feeding assembly (300) is used to drive the working assembly (400) to move vertically relative to the frame assembly (100) in the vertical direction. Two side positioning mechanisms (500) are fixedly connected to the front and rear ends of the frame assembly (100), respectively. The side positioning mechanisms (500) use the rail body (800) to be processed as a positioning reference to position the frame assembly (100). An electronic control system (700) is fixedly connected to the frame assembly (100) and is used to control the traction system (200), the lifting and feeding assembly (300), and the working assembly (400); A lithium battery system (600) is fixedly connected to the frame assembly (100) and is used to provide power to the traction system (200), the lifting and feeding assembly (300), the working assembly (400) and the electronic control system (700).

2. The portable intelligent rail profile milling equipment according to claim 1, characterized in that: The frame assembly (100) includes a main frame body (101), and a support beam (103) is fixedly connected to one side of the main frame body (101). The traction system (200) includes a traction motor (201), two movable wheels (204) and two motion shafts (205). The two motion shafts (205) are rotatably connected to the front and rear ends of the lower side of the main frame (101) of the vehicle frame, respectively. The two movable wheels (204) are fixedly connected to the two motion shafts (205), and the traction motor (201) is fixedly connected to the main frame (101) of the vehicle frame. The output end of the traction motor (201) is connected to one of the motion shafts (205) in a transmission connection. The working component (400) includes a spindle motor (401) fixedly connected to the lifting and feeding component (300), and a profile milling cutter (402) is fixedly connected to the output end of the spindle motor (401); The lifting and feeding assembly (300) includes a crossbeam (301) fixedly connected to the main frame (101) of the vehicle frame. A feed motor (302) is fixedly connected to the upper side of the crossbeam (301). A first lead screw (303) is fixedly connected to the output end of the feed motor (302). A threaded sleeve is threaded to the outer side of the first lead screw (303). A lifting arm (304) is fixedly connected to the lower side of the threaded sleeve. A main shaft motor (401) is fixedly connected to the lower side of the lifting arm (304). Guide posts (305) are fixedly connected to both ends of the lower side of the crossbeam (301). The guide posts (305) and the lifting arm (304) are slidably connected. The side positioning mechanism (500) includes a fixed frame (501) fixedly connected to the main frame (101) of the vehicle frame, a movable frame (502) is horizontally slidably connected to the fixed frame (501), and a second lead screw (505) is rotatably connected to the fixed frame (501). The second lead screw (505) and the movable frame (502) are threadedly connected. The lower sides of both the fixed frame (501) and the movable frame (502) are equipped with clamping and limiting parts.

3. The portable intelligent rail profile milling equipment according to claim 2, characterized in that: An auxiliary support wheel (104) is fixedly connected to the lower side of the support beam (103).

4. The portable intelligent rail profile milling equipment according to claim 2, characterized in that: A transfer support wheel (102) is fixedly connected to the middle position of the lower side of the combination of the main frame (101) and the support beam (103).

5. A portable intelligent rail profile milling device according to claim 2, characterized in that: The traction system (200) also includes a chain (203) and two sprockets (202). The two sprockets (202) are fixedly connected to two motion shafts (205) respectively, and the chain (203) is driven to the outside of the two sprockets (202).

6. The portable intelligent rail profile milling equipment according to claim 2, characterized in that: The clamping and limiting part is a bearing (506) rotatably connected to the lower side of the fixed frame (501) or the movable frame (502).

7. A portable intelligent rail profile milling device according to claim 2, characterized in that: A handwheel (503) is fixedly connected to the end of the second lead screw (505).

8. A portable intelligent rail profile milling device according to claim 2, characterized in that: The second lead screw (505) is also threaded with a nut (507) on its outer side, and a disc spring (504) is sleeved on the outer side of the second lead screw (505) between the movable frame (502) and the nut (507).

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