Rail head profiling grinder

Abstract

The utility model provides a rail top profiling sander, including polishing support, guide device, rotary drum and polishing device with protective shell, guide device and rotary drum set up in the both ends of polishing support, polishing device sets up in the middle part of polishing support, protective shell covers polishing device and fixed mounting is in polishing support, still be provided with polishing handrail, angle adjusting device and power battery on polishing support, polishing handrail sets up in the middle part of polishing support, angle adjusting device and power battery set up in one side of polishing device. The utility model discloses a protective shell to polishing device plays waterproof and dustproof effect, prolongs the service life of polishing device part, reduces the maintenance work, improves work efficiency, can control the sliding angle of rail top profiling sander through angle adjusting device simultaneously, and the operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of rail top contour grinding device, and in particular to a rail top contour grinding machine. Background Technology

[0002] Rail welding is crucial for achieving seamless tracks, but weld seams can develop defects such as weld beads and unevenness. Grinding is necessary to ensure the rail head profile dimensions and flatness; otherwise, train operation will be unstable and the rail fatigue life will be shortened. This requires the use of a grinding machine to grind the weld seams. However, due to the harsh environment of railway construction, grinding machines must operate outdoors for extended periods, frequently exposed to rain, which accelerates oxidation and damage to components. Furthermore, the dusty working environment of the grinding machine, coupled with the lack of protection for the components, easily leads to dust and dirt accumulation, affecting machine performance and hindering normal operation. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide a rail-top contour grinding machine, which aims to solve the problem that traditional grinding machines do not have waterproof and dustproof functions, resulting in easy damage.

[0004] The purpose of this utility model is achieved through the following technical solution: a rail-top contour grinding machine, comprising a grinding bracket, a guide device, a rotating drum, and a grinding device with a protective shell. The guide device and the rotating drum are located at both ends of the grinding bracket, and the grinding device is located in the middle of the grinding bracket. The protective shell covers the grinding device and is fixedly installed on the grinding bracket. The grinding bracket is also provided with a grinding handrail, an angle adjustment device, and a power battery. The grinding handrail is located in the middle of the grinding bracket, and the angle adjustment device and the power battery are located on one side of the grinding device.

[0005] Furthermore, the grinding device includes a drive motor, a grinding head, and a grinding lifting assembly. A lifting plate is mounted on the drive motor, and linear bearings are symmetrically arranged at the four ends of the lifting plate. A fixed plate is fixedly mounted on the grinding bracket, and guide posts that cooperate with the linear bearings are correspondingly arranged on the fixed plate. A through hole is provided in the middle of the fixed plate, and the output shaft of the drive motor passes through the through hole and is fixedly engaged with the grinding head. The grinding lifting assembly includes a lifting screw and a rotating handwheel. One end of the lifting screw is mounted on the fixed plate, and the other end passes through the protective shell and is fixedly engaged with the rotating handwheel. The lifting nut on the lifting screw is fixedly mounted on the lifting plate.

[0006] Furthermore, the protective housing is equipped with a heat dissipation device and a control switch electrically connected to the grinding device.

[0007] Furthermore, the lifting screw is a trapezoidal screw.

[0008] Furthermore, the guiding device includes an adjustable guide angle seat, a first guide wheel, and a second guide wheel. The adjustable guide angle seat is rotatably engaged with the grinding bracket via rolling bearings. The first guide wheel and the second guide wheel are respectively disposed on both sides of the adjustable guide angle seat. The guiding devices at both ends of the grinding bracket are connected by connecting rods, and the two ends of the connecting rods are mounted on the adjustable guide angle seat.

[0009] Furthermore, the angle adjustment device includes an angle adjustment fixing plate, an angle adjustment fixing rod, and an angle adjustment connecting rod. The angle adjustment fixing plate is fixedly installed on the grinding bracket and is provided with a first limiting groove and a second limiting groove. One end of the angle adjustment fixing rod is fixedly connected to one end of the guide adjustable angle seat, and the other end is hinged to one end of the angle adjustment connecting rod. Both the angle adjustment connecting rod and the angle adjustment fixing plate are provided with spring connecting holes at their bottoms. A spring is connected between the two spring connecting holes. The angle adjustment connecting rod is limited to the first limiting groove or the second limiting groove under the tension of the spring.

[0010] Furthermore, the grinding head is equipped with a grinding head protective cover.

[0011] Furthermore, the protective housing is provided with a maintenance door, which is fixedly installed to the protective housing with screws.

[0012] In summary, this invention provides waterproofing and dustproofing to the grinding device through a protective shell, extending the service life of the grinding device parts, reducing maintenance work, and improving work efficiency. Simultaneously, the angle adjustment device allows control of the sliding angle of the rail-top contour grinding machine, making operation simple and convenient. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the rail-top contour grinding machine described in this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the rail top contour grinding machine of this utility model in the state of disassembling and repairing the door;

[0015] Figure 3 This is a front view of the rail-top contour grinding machine described in this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the polishing device described in this utility model;

[0017] Figure 5 This is a front view of the grinding device described in this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the guiding device and the angle adjustment device described in this utility model;

[0019] Figure 7This is a front view of the angle adjustment device described in this utility model.

[0020] Reference numerals: 1 - Grinding bracket; 11 - Guide device; 111 - Adjustable guide angle seat; 112 - First guide wheel; 113 - Second guide wheel; 114 - Connecting rod; 12 - Rotating drum; 13 - Protective housing; 131 - Heat dissipation device; 132 - Control switch; 133 - Maintenance door; 14 - Grinding handrail; 15 - Fixing plate; 151 - Guide column; 152 - Through hole; 2 - Grinding device; 21 - Drive motor; 22 - Grinding head ; 221 - Grinding head protective cover; 23 - Grinding lifting assembly; 231 - Lifting screw; 232 - Rotary handwheel; 233 - Lifting nut; 24 - Lifting plate; 241 - Linear bearing; 3 - Angle adjustment device; 31 - Angle adjustment fixing plate; 311 - First limit groove; 312 - Second limit groove; 32 - Angle adjustment fixing rod; 33 - Angle adjustment connecting rod; 34 - Spring connecting hole; 35 - Spring; 4 - Power supply battery; 5 - Steel rail. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0022] like Figures 1 to 7 As shown, a rail-top contour grinding machine includes a grinding support 1, a guide device 11, a rotating drum 12, and a grinding device 2 with a protective housing 13. The guide device 11 and the rotating drum 12 are located at both ends of the grinding support 1, and the grinding device 2 is located in the middle of the grinding support 1. The protective housing 13 covers the grinding device 2 and is fixedly installed on the grinding support 1. The protective housing 13 is provided with a heat dissipation device 131 and a control switch 132 electrically connected to the grinding device 2. The heat dissipation device 131 includes a cooling fan and a ventilation window, and the heat inside the protective housing 13 is discharged through the cooling fan and the ventilation window. The grinding support 1 is also provided with a grinding handrail 14, an angle adjustment device 3, and a power battery 4. The grinding handrail 14 is located in the middle of the grinding support 1, and the angle adjustment device 3 and the power battery 4 are located on one side of the grinding device 2.

[0023] like Figure 4 and Figure 5As shown, the grinding device 2 includes a drive motor 21, a grinding head 22, and a grinding lifting assembly 23. A lifting plate 24 is mounted on the drive motor 21, and linear bearings 241 are symmetrically arranged at its four ends. A fixing plate 15 is fixedly mounted on the grinding bracket 1, and guide posts 151 corresponding to the linear bearings 241 are arranged on the fixing plate 15. A through hole 152 is provided in the middle of the fixing plate 15, through which the output shaft of the drive motor 21 passes and is fixedly engaged with the grinding head 22. The grinding lifting assembly 23 includes a lifting screw 231 and a rotating handwheel 232. The lifting screw 231 is a trapezoidal screw. One end of the lifting screw 231 is mounted on the fixing plate 15, and the other end passes through the protective housing 13 and is fixedly engaged with the rotating handwheel 232. A lifting nut 233 on the lifting screw 231 is fixedly mounted on the lifting plate 24. During the grinding operation, rotating the handwheel 232 causes the lifting nut 233 to drive the lifting plate 24 and the drive motor 21 to rise and fall synchronously, thereby adjusting the grinding depth of the rail. During the lifting of the lifting plate 24, the guide column 151 provides guidance, making the lifting process more stable.

[0024] like Figure 2 As shown, the grinding head 22 is equipped with a grinding head protective cover 221. During the grinding process, a large number of sparks are generated. The grinding head protective cover 221 can block the sparks, limit the range of spark splash, and prevent injury to the workers.

[0025] like Figure 6 As shown, the guiding device 11 includes an adjustable guide angle seat 111, a first guide wheel 112, and a second guide wheel 113. The adjustable guide angle seat 111 is rotatably coupled to the grinding bracket 1 via rolling bearings. The first guide wheel 112 and the second guide wheel 113 are respectively disposed on both sides of the adjustable guide angle seat 111, wherein the outer diameter of the first guide wheel 112 is larger than the outer diameter of the second guide wheel 113. The guiding devices 11 at both ends of the grinding bracket 1 are connected by connecting rods 114, and both ends of the connecting rods 114 are mounted on the adjustable guide angle seat 111.

[0026] like Figure 6 and Figure 7 As shown, the angle adjustment device 3 includes an angle adjustment fixing plate 31, an angle adjustment fixing rod 32, and an angle adjustment connecting rod 33. The angle adjustment fixing plate 31 is fixedly installed on the grinding bracket 1 and is provided with a first limiting groove 311 and a second limiting groove 312. One end of the angle adjustment fixing rod 32 is fixedly connected to one end of the guide adjustable angle seat 111, and the other end is hinged to one end of the angle adjustment connecting rod 33. Both the angle adjustment connecting rod 33 and the angle adjustment fixing plate 31 are provided with spring connecting holes 34 below them. A spring 35 is connected between the two spring connecting holes 34. The angle adjustment connecting rod 33 is limited to the first limiting groove 311 or the second limiting groove 312 under the tension of the spring 35.

[0027] like Figure 1 As shown, the protective housing 13 is equipped with a maintenance door 133, which is fixedly installed to the protective housing 13 with screws. When the rail-top contour grinding machine malfunctions, the internal parts of the protective housing 13 can be inspected and repaired by disassembling the maintenance door 133.

[0028] The working process of this utility model's rail top contour grinding machine is as follows: Place the rail top contour grinding machine on the top of the rail, adjust the height of the grinding head 22 so that it does not contact the rail, manually hold the grinding handle 14 and press the control switch 132 to start rotating the grinding head 22. Rotate the handle to slowly lower the grinding head 22 until it contacts the surface of the rail top for grinding. By moving the rail top contour grinding machine back and forth by holding the grinding handle 14, the rail surface can be repeatedly ground, improving the grinding effect. During the movement, the rotating roller 12 rolls as a rolling wheel and is guided by the guide device 11.

[0029] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A rail-top contour grinding machine, characterized in that: The present invention includes a grinding bracket (1), a guide device (11), a rotating roller (12) and a grinding device (2) with a protective shell (13). The guide device (11) and the rotating roller (12) are located at both ends of the grinding bracket (1), the grinding device (2) is located in the middle of the grinding bracket (1), the protective shell (13) covers the grinding device (2) and is fixedly installed on the grinding bracket (1), and the grinding bracket (1) is also provided with a grinding handle (14), an angle adjustment device (3) and a power battery (4). The grinding handle (14) is located in the middle of the grinding bracket (1), and the angle adjustment device (3) and the power battery (4) are located on one side of the grinding device (2). The angle adjustment device (3) includes an angle adjustment fixing plate (31), an angle adjustment fixing rod (32), and an angle adjustment connecting rod (33). The angle adjustment fixing plate (31) is fixedly installed on the grinding bracket (1) and is provided with a first limiting groove (311) and a second limiting groove (312). One end of the angle adjustment fixing rod (32) is fixedly connected to one end of the guide adjustable angle seat (111), and the other end is hinged to one end of the angle adjustment connecting rod (33). Both the angle adjustment connecting rod (33) and the angle adjustment fixing plate (31) are provided with spring connecting holes (34) below them. A spring (35) is connected between the two spring connecting holes (34). The angle adjustment connecting rod (33) is limited to the first limiting groove (311) or the second limiting groove (312) under the tension of the spring (35).

2. The rail-top contour grinding machine according to claim 1, characterized in that: The grinding device (2) includes a drive motor (21), a grinding head (22) and a grinding lifting assembly (23). A lifting plate (24) is installed on the drive motor (21). Linear bearings (241) are symmetrically arranged at the four ends of the lifting plate (24). A fixing plate (15) is fixedly installed on the grinding bracket (1). A guide column (151) that cooperates with the linear bearing (241) is correspondingly arranged on the fixing plate (15). A through hole (152) is provided in the middle of the fixing plate (15). The output shaft of the drive motor (21) passes through the through hole (152) and is fixedly cooperated with the grinding head (22). The grinding lifting assembly (23) includes a lifting screw (231) and a rotating handwheel (232). One end of the lifting screw (231) is installed on the fixing plate (15), and the other end passes through the protective shell (13) and is fixedly cooperated with the rotating handwheel (232). The lifting nut (233) on the lifting screw (231) is fixedly installed on the lifting plate (24).

3. The rail-top contour grinding machine according to claim 2, characterized in that: The protective housing (13) is provided with a heat dissipation device (131) and a control switch (132) electrically connected to the grinding device (2).

4. The rail-top contour grinding machine according to claim 2, characterized in that: The lifting screw (231) is a trapezoidal screw.

5. The rail-top contour grinding machine according to claim 1, characterized in that: The guide device (11) includes an adjustable guide angle seat (111), a first guide wheel (112), and a second guide wheel (113). The adjustable guide angle seat (111) is rotatably engaged with the grinding bracket (1) through a rolling bearing. The first guide wheel (112) and the second guide wheel (113) are respectively located on both sides of the adjustable guide angle seat (111). The guide devices (11) at both ends of the grinding bracket (1) are connected by a connecting rod (114). The two ends of the connecting rod (114) are mounted on the adjustable guide angle seat (111).

6. The rail-top contour grinding machine according to claim 2, characterized in that: The grinding head (22) is provided with a grinding head protective cover (221).

7. The rail-top contour grinding machine according to claim 1, characterized in that: The protective housing (13) is provided with a maintenance door (133), and the maintenance door (133) is fixedly installed to the protective housing (13) by screws.

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