Omnibearing steel rail profile grinding wagon

Abstract

An all-dimensional steel rail profile grinding wagon comprises a rail car, a grinding device, a three-axis mechanical arm and a power bin. The three-axis mechanical arm comprises a rotating unit, a transverse parallelogram swing arm and a longitudinal parallelogram swing arm. The rotating unit is installed on the inner side wall of the power bin, an output shaft of the rotating unit penetrates through the inner side wall, the transverse parallelogram swing arm is arranged on the outer side of the power bin, the inner end of the transverse parallelogram swing arm is in key connection with the output shaft, and the inner end of the longitudinal parallelogram swing arm is connected to the outer end of the transverse parallelogram swing arm. The outer end of the longitudinal parallelogram swing arm is provided with a grinding device, the transverse parallelogram swing arm transversely rotates around the rotating unit, the rail surface can be transversely ground back and forth through the grinding device, and meanwhile the grinding device can be moved to the side face of the rail in cooperation with the longitudinal parallelogram swing arm; and therefore, the defect that only a single part can be polished traditionally is overcome.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and more particularly to rail transit maintenance equipment, especially an all-around rail profile grinding vehicle. Background Technology

[0002] Rail grinding is an important part of track maintenance. Through grinding, rail surface defects such as fatigue cracks, spalling, corrugation, abrasion, bruising, thick edges, uneven wear, and poor smoothness can be effectively solved.

[0003] Existing grinding equipment can only be used for single-sided grinding of rails. In many cases, the areas that need grinding are the rail profile, rail surface, and rail web. It is also necessary to grind the thick edges and turnouts. Therefore, traditional methods cannot meet the grinding needs that occur randomly on a rail, resulting in the problem of repeated operations on a rail. Utility Model Content

[0004] The purpose of this invention is to provide an all-around rail profile grinding vehicle that provides three degrees of freedom for the grinding tool, allowing for flexible changes in the grinding position and angle, enabling rapid grinding of different parts of the rail, and solving the technical problem of existing grinding tools being used for grinding only a single part of the rail.

[0005] To achieve the above objectives, this utility model provides an all-around rail profile grinding vehicle, characterized in that it includes a railcar, grinding tools, a three-axis robotic arm, and a power compartment;

[0006] The railcar includes a frame and two pairs of rail wheels. The frame spans between two rails, and the two pairs of rail wheels are respectively installed on both sides of the frame.

[0007] The power compartment is mounted on the upper surface of the vehicle frame;

[0008] The three-axis robotic arm includes a rotating unit, a transverse parallelogram swing arm, and a longitudinal parallelogram swing arm. The rotating unit is installed on the inner wall of the power chamber, and the output shaft of the rotating unit passes through the inner wall of the power chamber. The transverse parallelogram swing arm is located on the outer side of the power chamber, and the inner end of the transverse parallelogram swing arm is keyed to the output shaft. The inner end of the longitudinal parallelogram swing arm is connected to the outer end of the transverse parallelogram swing arm, and the grinding tool is installed on the outer end of the longitudinal parallelogram swing arm.

[0009] Furthermore, this utility model provides an all-around rail profile grinding vehicle, wherein the rotating unit includes a motor and a reducer. The motor is mounted on the input end of the reducer, the reducer is mounted on the inner wall of the power compartment, and the output shaft of the reducer passes through the inner wall of the power compartment and extends to the outside of the power compartment. The transverse parallelogram swing arm includes an inner rhomboid flange, an outer rhomboid flange, and two transverse connecting rods. The inner rhomboid flange is keyed to the output shaft, and the inner ends of the two transverse connecting rods are respectively hinged to the inner rhomboid flange. The two transverse connecting rods are respectively hinged to the left and right ends of the outer rhomboid flange. The longitudinal parallelogram swing arm includes a mounting base and two longitudinal connecting rods. The inner ends of the two longitudinal connecting rods are respectively hinged to the upper and lower ends of the outer rhomboid flange, and the outer ends of the two longitudinal connecting rods are respectively hinged to the mounting base. The grinding tool includes a grinding motor and a grinding head. The grinding motor is mounted on the mounting base, and the grinding head is connected to the output shaft of the grinding motor through a coupling. Operating levers are installed on both sides of the mounting base.

[0010] Furthermore, the present invention provides an all-around rail profile grinding vehicle, which also includes a laser profiler, the laser profiler being mounted on the lower end face of the mounting base.

[0011] Furthermore, this utility model provides an all-around rail profile grinding vehicle, wherein a keyway shaft hole is formed in the center of the inner end diamond-shaped flange, and the keyway shaft hole is fitted onto the output shaft; a first hinge through hole is formed at both ends of the inner end diamond-shaped flange, and a first rotating shaft hole is formed perpendicular to the first hinge through hole, in which a first rotating shaft is inserted; the inner end of the transverse connecting rod extends into the first rotating shaft hole and is hinged to the first rotating shaft; a second hinge through hole is formed at both ends of the outer end diamond-shaped flange, and a second rotating shaft hole is formed perpendicular to the second hinge through hole, in which a second rotating shaft hole is inserted. The rotating shaft has the outer end of the transverse connecting rod extending into the second rotating shaft hole and hinged to the second rotating shaft. The upper and lower ends of the outer end diamond flange are respectively provided with first hinge grooves, and a third rotating shaft hole is provided perpendicular to the first hinge groove. The third rotating shaft is inserted into the third rotating shaft hole. The inner end of the longitudinal connecting rod extends into the first hinge groove and is hinged to the third rotating shaft. The upper and lower sides of the mounting base are respectively provided with second hinge grooves, and a fourth rotating shaft hole is provided perpendicular to the second hinge groove. The fourth rotating shaft is inserted into the fourth rotating shaft hole. The outer end of the longitudinal connecting rod extends into the second hinge groove and is hinged to the fourth rotating shaft.

[0012] Furthermore, this utility model provides an all-around rail profile grinding vehicle, wherein the power compartment is equipped with a power battery, and the power battery is connected to a motor, a grinding motor and a laser profiler respectively via wires.

[0013] This invention has the following advantages over the prior art:

[0014] This invention utilizes a horizontal parallelogram swing arm that rotates horizontally around a rotating unit, enabling the grinding tool to perform horizontal back-and-forth grinding on the track surface. Simultaneously, in conjunction with a vertical parallelogram swing arm, the grinding tool can be moved to the side of the track for grinding, thus overcoming the drawbacks of traditional grinding methods that can only grind a single area. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an all-around rail profile grinding vehicle according to the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure with changing perspective;

[0017] Figure 3 This is a schematic diagram of the grinding process of an all-around rail profile grinding vehicle according to this utility model.

[0018] The components are as follows: 1. Frame; 2. Track wheel; 3. Track; 4. Power compartment; 5. Laser profilometer; 6. Power battery; 7. Motor; 8. Reducer; 9. Inner diamond flange; 10. Outer diamond flange; 11. Transverse connecting rod; 12. Mounting base; 13. Longitudinal connecting rod; 14. Grinding motor; 15. Grinding head; 16. Coupling; 17. Operating lever; 18. First hinge through hole; 19. First pivot hole; 20. Second hinge through hole; 21. Second pivot hole; 22. First hinge slot; 23. Third pivot hole; 24. Second hinge slot; 25. Fourth pivot hole. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-3 As shown, this embodiment provides an all-around rail profile grinding vehicle, which includes a railcar, grinding tools, a three-axis robotic arm, a power compartment 4, and a laser profiler 5;

[0023] The railcar includes a frame 1 and two pairs of rail wheels 2. The frame 1 spans between two rails 3, and the two pairs of rail wheels 2 are respectively installed on both sides of the frame 1.

[0024] The power compartment 4 is mounted on the upper surface of the vehicle frame 1, and the power compartment 4 is equipped with a power battery 6 for providing power.

[0025] The three-axis robotic arm includes a rotating unit, a transverse parallelogram swing arm, and a longitudinal parallelogram swing arm. The rotating unit is installed on the inner wall of the power chamber 4, and the output shaft of the rotating unit passes through the inner wall of the power chamber. The transverse parallelogram swing arm is located on the outer side of the power chamber 4, and the inner end of the transverse parallelogram swing arm is keyed to the output shaft. The inner end of the longitudinal parallelogram swing arm is connected to the outer end of the transverse parallelogram swing arm, and the grinding tool is installed on the outer end of the longitudinal parallelogram swing arm.

[0026] The rotating unit includes a motor 7 and a reducer 8. The motor 7 is mounted on the input end of the reducer 8, which is mounted on the inner wall of the power compartment. The output shaft of the reducer 8 passes through the inner wall of the power compartment and extends to the outside of the power compartment 4. The transverse parallelogram swing arm includes an inner rhomboid flange 9, an outer rhomboid flange 10, and two transverse connecting rods 11. The inner rhomboid flange 9 is keyed to the output shaft. The inner ends of the two transverse connecting rods 11 are respectively hinged to the left and right ends of the inner rhomboid flange 9, and the outer ends of the two transverse connecting rods 11 are respectively hinged to the outer rhomboid flange 9. The flange 10 has its left and right ends; the longitudinal parallelogram swing arm includes a mounting base 12 and two longitudinal connecting rods 13, the inner ends of which are respectively hinged to the upper and lower ends of the outer rhomboid flange 10, and the outer ends of which are respectively hinged to the mounting base 12; the grinding tool includes a grinding motor 14 and a grinding head 15, the grinding motor 14 is mounted on the mounting base 12, and the grinding head 15 is connected to the output shaft of the grinding motor 14 through a coupling 16; operating levers 17 are mounted on both sides of the mounting base 12; the laser profilometer 5 is mounted on the lower end face of the mounting base 12;

[0027] Specifically, a keyway shaft hole is formed in the center of the inner rhomboid flange 9, and the keyway shaft hole is fitted onto the output shaft; first hinge through holes 18 are formed at both ends of the inner rhomboid flange 9, and a first rotating shaft hole 19 is formed perpendicular to the first hinge through holes 18, into which a first rotating shaft is inserted; the inner end of the transverse connecting rod 11 extends into the first rotating shaft hole 19 and is hinged to the first rotating shaft; second hinge through holes 20 are formed at both ends of the outer rhomboid flange 10, and a second rotating shaft hole 21 is formed perpendicular to the second hinge through holes 20, into which a second rotating shaft is inserted; the outer end of the transverse connecting rod 11 extends into the second rotating shaft hole 21. The second pivot hole 21 is hinged to the second pivot shaft. The upper and lower ends of the outer diamond flange 10 are respectively provided with first hinge grooves 22. A third pivot hole 23 is provided perpendicular to the first hinge groove 22. A third pivot shaft is inserted into the third pivot hole 23. The inner end of the longitudinal connecting rod 13 extends into the first hinge groove 22 and is hinged to the third pivot shaft. The upper and lower sides of the mounting base 12 are respectively provided with second hinge grooves 24. A fourth pivot hole 25 is provided perpendicular to the second hinge groove 24. A fourth pivot shaft is inserted into the fourth pivot hole 25. The outer end of the longitudinal connecting rod 13 extends into the second hinge groove 24 and is hinged to the fourth pivot shaft.

[0028] The usage method and principle of the all-around rail profile grinding machine in this embodiment are as follows:

[0029] The railcar in this invention spans two train tracks 3. Multiple power batteries 6 are housed in the power compartment 4 mounted above the railcar, increasing the overall weight of the railcar while improving operational stability. Manually pulling the operating lever 17 moves the grinding tool above the track 3. At this time, the horizontal parallelogram swing arm moves the grinding tool left or right, activating the laser profilometer 5 to measure the contour data of the track 3. The measured data is compared with standard data to determine the location and amount of grinding required. When grinding the rail surface is needed, pressing down is used for grinding. When the grinding tool is placed on the rail surface, the grinding tool is started and the railcar is pushed forward to grind the rail surface along the length of rail 3. When the side of rail 3 needs to be ground, the grinding tool is rotated to the corresponding side by the rotating unit, the grinding tool is pressed down to the side, the grinding tool is started and the railcar is pushed forward to grind the side along the length of rail 3. This effectively solves the technical problem that existing rail grinding machines can only be used for a single part of the rail and have a single function. The motor 7, the grinding motor 14 and the laser profilometer 5 are all powered by the power battery 6 through wires.

[0030] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0031] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A 360° rail profile grinding machine, characterized in that, Includes a railcar, grinding tools, a three-axis robotic arm, and a power unit; The railcar includes a frame and two pairs of rail wheels. The frame spans between two rails, and the two pairs of rail wheels are respectively installed on both sides of the frame. The power compartment is mounted on the upper surface of the vehicle frame; The three-axis robotic arm includes a rotating unit, a transverse parallelogram swing arm, and a longitudinal parallelogram swing arm. The rotating unit is installed on the inner wall of the power chamber, and the output shaft of the rotating unit passes through the inner wall of the power chamber. The transverse parallelogram swing arm is located on the outer side of the power chamber, and the inner end of the transverse parallelogram swing arm is keyed to the output shaft. The inner end of the longitudinal parallelogram swing arm is connected to the outer end of the transverse parallelogram swing arm, and the grinding tool is installed on the outer end of the longitudinal parallelogram swing arm.

2. The all-around rail profile grinding machine according to claim 1, characterized in that, The rotating unit includes a motor and a reducer. The motor is mounted on the input end of the reducer, which is mounted on the inner wall of the power compartment. The output shaft of the reducer passes through the inner wall of the power compartment and extends to the outside of the power compartment. The transverse parallelogram swing arm includes an inner rhomboid flange, an outer rhomboid flange, and two transverse connecting rods. The inner rhomboid flange is keyed to the output shaft. The inner ends of the two transverse connecting rods are respectively hinged to the left and right ends of the inner rhomboid flange. The outer ends of the transverse connecting rods are respectively hinged to the left and right ends of the outer rhomboid flange; the longitudinal parallelogram swing arm includes a mounting base and two longitudinal connecting rods, the inner ends of the two longitudinal connecting rods are respectively hinged to the upper and lower ends of the outer rhomboid flange, and the outer ends of the two longitudinal connecting rods are respectively hinged to the mounting base; the grinding tool includes a grinding motor and a grinding head, the grinding motor is mounted on the mounting base, and the grinding head is connected to the output shaft of the grinding motor through a coupling; operating levers are installed on both sides of the mounting base.

3. The all-around rail profile grinding machine according to claim 2, characterized in that, It also includes a laser profilometer, which is mounted on the lower end face of the mounting base.

4. The all-around rail profile grinding machine according to claim 2, characterized in that, A keyway shaft hole is formed in the center of the inner diamond-shaped flange, and the keyway shaft hole is fitted onto the output shaft. First hinged through holes are formed at both ends of the inner diamond-shaped flange, and a first rotating shaft hole is formed perpendicular to the first hinged through holes. A first rotating shaft is inserted into the first rotating shaft hole, and the inner end of the transverse connecting rod extends into the first rotating shaft hole and is hinged to the first rotating shaft. Second hinged through holes are formed at both ends of the outer diamond-shaped flange, and a second rotating shaft hole is formed perpendicular to the second hinged through holes. A second rotating shaft is inserted into the second rotating shaft hole, and the outer end of the transverse connecting rod extends into the keyway shaft hole. The second pivot hole is hinged to the second pivot shaft. The upper and lower ends of the outer diamond-shaped flange are respectively provided with first hinge grooves. A third pivot hole is provided perpendicular to the first hinge groove. The third pivot shaft is inserted into the third pivot hole. The inner end of the longitudinal connecting rod extends into the first hinge groove and is hinged to the third pivot shaft. The upper and lower sides of the mounting base are respectively provided with second hinge grooves. A fourth pivot hole is provided perpendicular to the second hinge groove. The fourth pivot shaft is inserted into the fourth pivot hole. The outer end of the longitudinal connecting rod extends into the second hinge groove and is hinged to the fourth pivot shaft.

5. The all-around rail profile grinding machine according to claim 1, characterized in that, The power compartment is equipped with a power battery, which is connected to a motor, a grinding motor and a laser profilometer via wires.

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