Railhead grinding apparatus

Abstract

The rail surface polishing device disclosed by the application relates to the technical field of track maintenance equipment and comprises a walking unit, a polishing unit and a polishing structure. The walking unit is movably installed on a steel rail to be polished along the direction in which the steel rail to be polished extends and is provided with an oscillation driving mechanism. The output end of the oscillation driving mechanism has an oscillation axis parallel to the extension direction of the steel rail to be polished. The polishing unit is installed on the walking unit. The polishing unit is provided with a rotation driving mechanism, the polishing structure, a supporting mechanism and a vertical driving mechanism. The supporting mechanism is rotationally installed on the walking unit and is connected with the output end of the oscillation driving mechanism. The rotation driving mechanism is movably installed on the supporting mechanism along the direction perpendicular to the extension direction of the steel rail to be polished. The polishing structure is connected with the output end of the rotation driving mechanism. The vertical driving mechanism is installed on the supporting mechanism and its output end is connected with the main body structure of the rotation driving mechanism. The structure is more compact, the arrangement is more reasonable, and the equipment integration and operation flexibility are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of track maintenance equipment technology, and in particular to a track surface grinding device. Background Technology

[0002] In the operation and maintenance of rail transit, rail surface grinding is an important technical means to ensure the flatness of rails, delay rail surface corrugation, and extend their service life. The quality of rail surface grinding directly affects the smoothness, safety, and maintenance costs of train operation.

[0003] Most existing grinding equipment uses a grinding wheel as the main actuating unit, and controls its contact with the guide surface through lifting and angle adjustment mechanisms to complete the grinding task.

[0004] Currently, most mainstream grinding equipment consists of large-scale mechanical devices with bulky overall size, rigid structures, and long transmission paths. This not only hinders modular design and transportation layout but also makes integration with intelligent systems such as track inspection and attitude measurement difficult, failing to meet the actual needs of refined track maintenance for miniaturized and intelligent equipment. Especially in curved sections, turnout areas, and clearance-constrained sections, existing grinding equipment struggles to be flexibly arranged or automatically adjust grinding angles, resulting in processing blind spots, low efficiency, and high reliance on manual labor. While some systems have attempted to introduce multi-degree-of-freedom mechanisms, their motion coupling is complex, control models are unstable, and industrial implementation is difficult.

[0005] Furthermore, in existing technologies, the lifting and attitude control of the grinding wheel in rail surface grinding equipment mostly rely on hydraulic or pneumatic actuators. Although hydraulic systems have a large thrust, their complex structure, slow response, and risk of oil leakage make them unsuitable for scenarios with high cleanliness requirements. While pneumatic systems offer faster response times, their control precision is limited, making it difficult to achieve continuous, stable, and minute adjustments. This can easily lead to uneven contact between the grinding wheel and the rail surface, resulting in poor grinding consistency. Summary of the Invention

[0006] The purpose of this invention is to provide a rail surface grinding device that solves the problems existing in the prior art, with a more compact structure, more reasonable layout, and significantly improved equipment integration and operational flexibility.

[0007] To achieve the above objectives, the present invention provides the following solution: The present invention provides a rail surface grinding device, comprising:

[0008] The traveling unit is movably mounted on the rail to be ground along the direction of the rail to be ground, and is provided with a swing drive mechanism. The swing axis of the output end of the swing drive mechanism is parallel to the direction of the rail to be ground.

[0009] A grinding unit is mounted on the traveling unit and located above the surface of the rail to be ground. The grinding unit includes a rotation drive mechanism, a grinding structure, a support mechanism, and a vertical drive mechanism. The support mechanism is rotatably mounted on the traveling unit and connected to the output end of the swing drive mechanism. The rotation drive mechanism is movably mounted on the support mechanism in a direction perpendicular to the extension of the rail to be ground. The grinding structure is connected to the output end of the rotation drive mechanism. The vertical drive mechanism is mounted on the support mechanism, and its output end is connected to the main structure of the rotation drive mechanism.

[0010] Optionally, the rotation drive mechanism is equipped with a guide mechanism for movably mounting on the support mechanism, the guide mechanism comprising:

[0011] A slider, which is mounted on the rotation drive mechanism;

[0012] A guide rod is mounted on the support mechanism and extends in a direction perpendicular to the rail to be ground, and slides in cooperation with the slider.

[0013] Optionally, the vertical drive mechanism includes:

[0014] A guide rod drive motor is mounted on the support mechanism;

[0015] The drive guide rod is a lead screw structure and is rotatably mounted on the support mechanism, extending vertically. The end of the drive guide rod is connected to the output end of the guide rod drive motor. The drive guide rod is threadedly connected to the slider.

[0016] Optionally, the support mechanism includes:

[0017] An upwardly perpendicular adapter plate has an upper limit hole, which surrounds the outer periphery of the rotary drive mechanism and is close to the outer periphery wall of the rotary drive mechanism.

[0018] A downward-facing adapter plate is arranged parallel to and spaced below the upper vertical adapter plate, and has a lower limit hole coaxial with the upper limit hole. The output end of the rotation drive mechanism passes through the lower limit hole and is connected to the grinding structure.

[0019] Optionally, a plurality of guide rods are provided between the upper vertical adapter plate and the lower vertical adapter plate, each guide rod surrounding the outer periphery of the rotation drive mechanism, and the two ends of the guide rod are respectively connected to the upper vertical adapter plate and the lower vertical adapter plate.

[0020] Optionally, the rotation drive mechanism adopts a grinding structure drive motor.

[0021] Optionally, the traveling unit includes two traveling sections, which are distributed on both sides of the grinding unit along the direction of travel of the grinding unit, and are movably mounted on the steel rail to be ground along the direction of extension of the steel rail to be ground; both traveling sections are rotatably engaged with the grinding unit, and either of the traveling sections is provided with the swing drive mechanism.

[0022] Optionally, the traveling section includes:

[0023] A guide adapter plate, which is equipped with guide wheels that travel along the rail to be ground;

[0024] The swing linkage has one end mounted on the grinding unit and the other end rotatably engaged with the guide adapter plate;

[0025] The swing drive mechanism is mounted on the guide adapter plate of any one of the traveling parts.

[0026] Optionally, the swing drive mechanism may be a swing drive motor.

[0027] Optional, also includes:

[0028] A frame is mounted on the traveling unit and has a hollow area located on one side of the traveling unit, and the grinding unit is integrated into the hollow area;

[0029] An auxiliary wheel travels along a rail parallel to the rail to be ground and is connected to the frame by an auxiliary connecting rod.

[0030] The present invention achieves the following technical effects compared to the prior art:

[0031] The rail surface grinding equipment disclosed in this invention integrates the traveling unit and the grinding unit into the main body of the grinding equipment in its overall structural design. The traveling unit moves along the rail to be ground, and the support mechanism of the grinding unit is installed at the output end of the swing drive mechanism of the traveling unit. The rotation drive mechanism, the grinding structure and the vertical drive mechanism are integrated on the support mechanism, which makes the structure more compact and the layout more reasonable, significantly improving the integration of the equipment and the flexibility of operation. This solves the problem of existing technologies that use power output to cooperate with multi-stage transmission devices, arrange each execution unit in layers, resulting in a dispersed structure, large size, complex inter-system coordination, and difficulty in achieving integrated assembly and convenient deployment. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of the rail surface grinding equipment in one embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the connection structure between the grinding unit and the traveling unit in one embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the walking unit structure in one embodiment of the present invention;

[0036] Among them, 1-Auxiliary connecting rod, 2-Auxiliary wheel, 3-Grinding equipment body, 4-Handrail, 5-Display screen, 6-Circuit control box, 7-Frame, 8-Power supply box, 9-Grinding unit, 10-Traveling unit, 11-Upper vertical adapter plate, 12-Grinding structure drive motor, 13-Guide rod drive motor, 14-Guide rod, 15-Grinding wheel, 16-Swing connecting rod, 17-Swing drive motor, 18-Guide adapter plate, 19-Guide wheel, 20-Wheel adapter plate, 21-Wheel, 22-Sliding adapter plate, 23-Sliding connecting plate, 24-Locking handle, 25-Sliding shaft. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] The purpose of this invention is to provide a rail surface grinding device that solves the problems existing in the prior art, with a more compact structure, more reasonable layout, and significantly improved equipment integration and operational flexibility.

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figure 1 -to Figure 3As shown, the present invention provides a rail surface grinding device, including a traveling unit 10 and a grinding unit 9; wherein, the traveling unit 10 is movably mounted on the rail to be ground along the extension direction of the rail to be ground, and is provided with a swing drive mechanism, the swing axis of the output end of the swing drive mechanism being parallel to the extension direction of the rail to be ground; the grinding unit 9 is mounted on the traveling unit 10 and is located above the surface of the rail to be ground; the grinding unit 9 is provided with a rotation drive mechanism, a grinding structure, a support mechanism, and a vertical drive mechanism; the support mechanism is rotatably mounted on the traveling unit 10 and connected to the output end of the swing drive mechanism, so that the traveling unit 10 moves the support mechanism along the rail to be ground, and the swing drive mechanism drives the support mechanism. The mechanism oscillates; a rotary drive mechanism is movably mounted on a support mechanism along a direction perpendicular to the rail to be ground; a grinding structure is connected to the output end of the rotary drive mechanism, preferably using a grinding wheel 15, etc.; a vertical drive mechanism is mounted on the support mechanism, and its output end is connected to the main structure of the rotary drive mechanism; the vertical drive mechanism drives the rotary drive mechanism and the grinding structure to approach or move away from the rail surface, and the rotary drive mechanism drives the grinding structure to rotate to grind the rail surface; the oscillation drive mechanism drives the support mechanism, the rotary drive mechanism, and the grinding structure to oscillate synchronously, so that the grinding structure can oscillate laterally, covering the rail grinding area at different angles and expanding the grinding coverage.

[0041] The rail surface grinding equipment disclosed in this invention integrates the traveling unit 10 and the grinding unit 9 into the main body 3 of the grinding equipment in its overall structural design. The traveling unit 10 travels along the rail to be ground, and the support mechanism of the grinding unit 9 is installed at the output end of the swing drive mechanism of the traveling unit 10. The rotation drive mechanism, the grinding structure and the vertical drive mechanism are integrated on the support mechanism, which makes the structure more compact and the layout more reasonable, significantly improving the integration of the equipment and the flexibility of operation. This solves the problem of existing technologies that use power output to cooperate with multi-stage transmission devices, arrange each execution unit in layers, resulting in a dispersed structure, large size, complex inter-system coordination, and difficulty in achieving integrated assembly and convenient deployment.

[0042] Furthermore, in this embodiment, the vertical drive mechanism, the swing drive mechanism, and the rotation drive mechanism are controlled independently, enabling coordinated movement of the grinding structure in three degrees of freedom: vertical lifting, lateral swinging, and self-rotation. This allows it to adapt to complex rail surfaces and achieve collaborative operation with high coverage and high grinding efficiency. This solves the problems of existing technologies that use drive units to drive multiple mechanisms for angular, lateral, and vertical linkages, resulting in complex structures, high control coupling due to serial connections, and difficulties in maintenance and slow response.

[0043] In one specific embodiment, the rotary drive mechanism is equipped with a guide mechanism for movably mounting on the support mechanism. The guide mechanism includes a slider and a guide rod 14. The slider is mounted on the rotary drive mechanism. The guide rod 14 is mounted on the support mechanism and extends in a direction perpendicular to the extension of the steel rail to be ground. It slides in cooperation with the slider. The vertical drive mechanism drives the rotary drive mechanism to move, so that the rotary drive mechanism moves along the guide rod 14 through the slider, ensuring the smoothness of the movement of the rotary drive mechanism.

[0044] To ensure the stability of the connection between the slider and the guide rod 14, in this embodiment, a guide hole is provided on the slider for the guide rod 14 to slide through. More preferably, a linear bearing is provided in the guide hole, and the guide hole forms a sliding fit with the guide rod 14 through the provided linear bearing.

[0045] In this embodiment, the vertical drive mechanism includes a guide rod drive motor 13 and a drive guide rod. The guide rod drive motor 13 is mounted on the support mechanism. The drive guide rod has a lead screw structure and is rotatably mounted on the support mechanism, extending in the vertical direction. The end of the drive guide rod is connected to the output end of the guide rod drive motor 13. The drive guide rod is threadedly connected to the slider. That is, the vertical drive mechanism adopts a motor lead screw slider structure and uses a pure electric drive mode to complete the movement of the rotation drive mechanism along the extension direction perpendicular to the rail to be ground. This solves the problem of inherent defects in the prior art, such as high dependence on hydraulic drive to complete the lifting action, response delay, high energy consumption, and easy leakage.

[0046] In this embodiment, the support mechanism includes an upper vertical adapter plate 11 and a lower vertical adapter plate. The upper vertical adapter plate 11 has an upper limit hole that surrounds the outer periphery of the rotation drive mechanism and is close to the outer periphery of the rotation drive mechanism. The lower vertical adapter plate is arranged parallel to the lower vertical adapter plate 11 below it and has a lower limit hole that is coaxial with the upper limit hole. The output end of the rotation drive mechanism passes through the lower limit hole and is connected to the grinding structure. The grinding structure is finally suspended below the lower vertical adapter plate. This invention, by setting an upper vertical adapter plate 11 and a lower vertical adapter plate, embeds the rotation drive mechanism in the upper limit hole on the upper vertical adapter plate 11, and the main structure of the rotation drive mechanism slides with the upper limit hole, so that the upper vertical adapter plate 11 wraps around the rotation drive mechanism. The lower limit hole is coaxial with the upper limit hole, and the output end of the rotation drive mechanism passes through the lower limit hole and connects to the grinding structure, forming a compact coaxial longitudinal arrangement. This improves the overall rigidity and vibration resistance of the rotation drive mechanism and solves the problem of insufficient rigidity caused by using a large-volume drive module to connect to the external structure in the prior art.

[0047] In one specific embodiment, a plurality of guide rods 14 are provided between the upper vertical adapter plate 11 and the lower vertical adapter plate. Each guide rod 14 surrounds the outer periphery of the rotary drive mechanism, and the two ends of the guide rod 14 are respectively connected to the upper vertical adapter plate 11 and the lower vertical adapter plate. The upper vertical adapter plate 11 and the lower vertical adapter plate are rigidly connected by the plurality of guide rods 14, maintaining a stable distance between the upper vertical adapter plate 11 and the lower vertical adapter plate, forming a longitudinal rigid frame as a whole. Therefore, the guide rods 14 not only provide guidance but also ensure the axial stability between the rotary drive mechanism and the grinding structure, effectively improving the linear transmission efficiency of power output.

[0048] To further ensure the rigid structure between the upper vertical transition plate 11 and the lower vertical transition plate, each guide rod 14 is distributed at equal intervals along the circumference of the rotation drive mechanism, and each guide rod 14 is symmetrically spaced.

[0049] In one embodiment employing a motor-screw-slider structure for the vertical drive mechanism, the drive guide rod is located between the upper vertical transition plate 11 and the lower vertical transition plate, with both ends of the drive guide rod rotatably mounted on the upper and lower vertical transition plates, respectively. The guide rod drive motor 13 is mounted on the upper vertical transition plate 11, and its output end is connected to the top of the drive guide rod. This structure, employing a drive guide rod and multiple guide rods 14 working in tandem, achieves rigid linkage through the upper and lower vertical transition plates 11. Under the electric drive of the drive guide rod, the slider, along with the rotation drive mechanism and the grinding structure, achieves stable vertical lifting and lowering. This structure effectively prevents the grinding mechanism from tilting or vibrating during lifting and lowering, improving grinding accuracy and consistency.

[0050] In this embodiment, the drive guide rod and each guide rod 14 are equally spaced around the outer periphery of the rotary drive mechanism to ensure that the overall posture of the rotary drive mechanism and the grinding structure remains horizontal during the lifting process, avoiding problems such as uneven grinding and jumping caused by single-point lifting, thereby significantly improving the grinding quality and uniformity.

[0051] To further enhance the overall rigidity and vibration resistance of the machine, the upper limit hole and the lower limit hole are respectively located at the middle position of the upper vertical adapter plate 11 and the lower vertical adapter plate.

[0052] In this embodiment, the rotation drive mechanism adopts a grinding structure drive motor 12. The pure electric drive grinding structure replaces the traditional hydraulic or pneumatic control method. The pure electric drive structure has a fast response and high control accuracy, which solves the problems of existing technologies that rely heavily on hydraulic drive to complete lifting and turning actions, and have inherent defects such as response delay, high energy consumption and easy leakage.

[0053] The slider has a sleeve-shaped structure and is sleeved on the outer periphery of the main structure of the grinding structure drive motor 12. The slider and the main structure of the grinding structure drive motor 12 can be connected by multiple bolts, and the bolts are evenly distributed along the circumference of the main structure of the grinding structure drive motor 12.

[0054] In one specific embodiment, the traveling unit 10 includes two traveling sections, which are distributed on both sides of the grinding unit 9 along the direction of travel of the grinding unit 9, and are movably installed on the grinding rail along the direction of extension of the grinding rail; both traveling sections are rotatably engaged with the grinding unit 9, and either traveling section is provided with a swing drive mechanism; the two traveling sections together support the grinding unit 9, ensuring the stability of the support, travel and swing drive of the grinding unit 9.

[0055] In this embodiment, the traveling section includes a guide transition plate 18 and a swing link 16. The guide transition plate 18 is equipped with a guide wheel 19 that travels along the rail to be ground. The guide wheel 19 is mounted on the side of the guide transition plate 18 and suspended by a pivot, allowing it to rotate freely. One end of the swing link 16 is mounted on the grinding unit 9, and the other end is rotatably engaged with the guide transition plate 18. A swing drive mechanism is mounted on the guide transition plate 18 of any traveling section to drive one swing link 16 to swing synchronously with the grinding unit 9. The other swing link 16 supports the grinding unit 9 and moves with the grinding unit 9, thereby ensuring the stability of the swing drive of the grinding unit 9.

[0056] To further improve the overall integration of the device, the guide plate 18 is set horizontally, and the power control box is installed above the guide plate 18.

[0057] To control the swing angle of the grinding unit 9 within a reasonable range, limit holes are provided on the guide adapter plate 18. One end of the swing linkage 16 is mounted on the grinding unit 9, and the other end rotates and engages with the limit holes. The limit holes limit the range of motion of the swing linkage 16 and the grinding unit 9. This limiting design not only prevents excessive swinging of the grinding structure from causing mechanical interference or derailment, but also enhances the mechanical safety and structural reliability of the entire device during dynamic operation. Furthermore, it effectively improves the track fit and safety during the grinding process, adapting to different track surface profiles.

[0058] In the embodiment where the support mechanism includes an upper vertical transition plate 11 and a lower vertical transition plate, the swing link 16 is connected to both the upper vertical transition plate 11 and the lower vertical transition plate by bolts, so that the swing link 16 and the support mechanism form a rigid connection frame.

[0059] Furthermore, the traveling section also includes a wheel adapter plate 20 and wheels 21. The wheel adapter plate 20 is connected to the guide adapter plate 18 on the side opposite to the grinding unit 9. The wheels 21 are rotatably mounted on the wheel adapter plate 20 and travel along the rail to be ground. The wheels 21 are mounted below the wheel adapter plate 20 and are suspended by a pivot shaft, allowing for free rotation. The guide adapter plate 18 is bolted to the wheel adapter plate 20, forming a rigid connection frame.

[0060] To ensure that the rollers 21 can adapt to different steel rails to be ground, the roller adapter plate 20 is vertically movable and installed on the side of the guide adapter plate 18 away from the grinding unit 9, and is equipped with a positioning structure for positioning the roller adapter plate 20.

[0061] In this embodiment, a sliding adapter plate 22 is installed on the wheel adapter plate 20, which can be detachably connected by bolts or the like. A groove is provided on the side of the guide adapter plate 18 near the wheel adapter plate 20, extending vertically. The sliding adapter plate 22 engages with the guide adapter plate 18 through the groove, and the end of the sliding adapter plate 22 slides within the groove to adjust the height of the sliding adapter plate 22, the wheel adapter plate 20, and the wheel 21. A locking handle 24 is provided on the sliding adapter plate 22, which locks the end of the sliding adapter plate 22 within the groove. For example, the locking handle 24 includes a bolt structure and a handle structure. The bolt structure passes through the end of the sliding adapter plate 22 and presses against the inner wall of the groove. The handle structure is located outside the groove and connected to the bolt structure, used to rotate the bolt structure via the handle structure.

[0062] To further stabilize and guide the wheel adapter plate 20, a guide structure is provided between the sliding adapter plate 22 and the guide adapter plate 18. The preferred guide structure includes a sliding shaft 25, which is mounted on the guide adapter plate 18 and can be connected by bolts or other means. The part of the sliding adapter plate 22 located outside the groove is slidably sleeved on the sliding shaft 25. For example, a sliding connecting plate 23 is connected to the sliding adapter plate 22 and can be connected by bolts or other means. The sliding connecting plate 23 has a through hole that slides with the sliding shaft 25.

[0063] In this embodiment, the swing drive mechanism adopts a swing drive motor 17. The pure electric drive structure has a fast response and high control precision, which solves the problems of existing technologies that rely heavily on hydraulic drive to complete lifting and turning actions, and have inherent defects such as response delay, high energy consumption and easy leakage.

[0064] By combining the rotary drive mechanism with a grinding structure drive motor 12 and the vertical drive mechanism with a guide rod drive motor 13, this application enables independent control and precise adjustment of each degree of freedom, improving system response speed, control accuracy, and module adaptability, facilitating deployment in various automated rail maintenance platforms. Furthermore, the pure electric drive structure possesses excellent programmability and flexible adjustment capabilities, enabling precise adjustments for different rail surface profiles and adapting to the high-quality grinding requirements of complex curvatures and different types of rails.

[0065] In one specific embodiment, it also includes a frame 7 and an auxiliary wheel 2. The frame 7 is mounted on the traveling unit 10 and has a hollow area on one side of the traveling unit 10. The grinding unit 9 is integrated into the hollow area. The auxiliary wheel 2 travels along the rail parallel to the rail to be ground and is connected to the frame 7 by an auxiliary connecting rod 1. This achieves stable support and guidance for the entire device.

[0066] In this embodiment, handrails 4 are provided on both sides of the frame 7, the circuit control box 6 is installed inside the frame 7, and the display screen 5 is located on the upper part of the frame 7. The grinding unit 9 is located in the hollow area of ​​the frame 7, and is situated below the circuit control box 6, forming an upper and lower arrangement structure.

[0067] Workflow:

[0068] First, the traveling unit 10 of this equipment is placed on the rail to be ground, and supported on the other side of the rail by the auxiliary connecting rod 1 and the auxiliary wheel 2, so that the whole machine straddles the rail.

[0069] Subsequently, the operator turns on the power supply to the power box 8, turns on the display screen 5, and initializes the circuit control box 6 through the display screen 5. Grinding parameters are set on the display screen 5, and the circuit control box 6 completes the preset configuration of each execution unit of the grinding device according to the set parameters. Grinding parameters, including control variables such as grinding structure rotation speed, oscillation frequency, and guide rod lifting stroke, are set through the display screen 5 interface.

[0070] Then, after completing the parameter configuration, the grinding device is started and enters the grinding operation state. According to the set parameters, the guide rod drive motor 13 starts, driving the drive guide rod to rotate, realizing the lifting and lowering movement of the grinding structure drive motor 12. The upper vertical adapter plate 11 and the lower vertical adapter plate are connected to the guide rod 14, thereby realizing the coordinated lifting and lowering movement of the grinding structure drive motor 12, so that the grinding structure drive motor 12 is stably adjusted in the vertical direction.

[0071] The grinding structure drive motor 12 in grinding unit 9 starts, driving the grinding structure connected below it to rotate at high speed, ready to perform the grinding task. The guide rod drive motor 13 starts synchronously, driving the guide rod to work, and simultaneously cooperating with each guide rod 14 to cause the grinding structure drive motor 12 to move up and down, adjusting the contact depth of the grinding structure relative to the rail surface. At the same time, the swing drive motor 17 starts, driving the swing linkage 16 connected to it to perform periodic reciprocating swings, and driving the grinding unit 9 to move synchronously, enabling the grinding structure to swing laterally within the controllable range, covering the rail grinding area at different angles and expanding the grinding coverage.

[0072] The guide wheels 19 and the rollers 21 on both sides of the device cooperate with the rails to ensure that the entire machine moves smoothly along the longitudinal direction of the rails. With the push of the operators, the equipment moves forward along the rails to achieve continuous grinding.

[0073] Based on the length of the grinding task and the set control logic, the grinding process can continue until the set distance is reached. Then the system automatically stops the rotation and swinging of the grinding structure. At the same time, the guide rod drive motor 13 and the drive guide rod raise the grinding structure drive motor 12 to a safe position.

[0074] After the equipment completes the grinding operation, the entire device is lifted and removed from the rail, completing the entire grinding process.

[0075] The rail surface grinding equipment provided by this invention has advantages such as multi-degree-of-freedom controllability, high operational stability, and compact and reliable structure. It can effectively solve problems such as poor posture control, uneven grinding, and insufficient safety in the traditional rail grinding process.

[0076] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0077] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0078] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A rail surface grinding device, characterized in that, include: The traveling unit is movably mounted on the rail to be ground along the direction of the rail to be ground, and is provided with a swing drive mechanism. The swing axis of the output end of the swing drive mechanism is parallel to the direction of the rail to be ground. A grinding unit is mounted on the traveling unit and located above the surface of the rail to be ground. The grinding unit includes a rotation drive mechanism, a grinding structure, a support mechanism, and a vertical drive mechanism. The support mechanism is rotatably mounted on the traveling unit and connected to the output end of the swing drive mechanism. The rotation drive mechanism is movably mounted on the support mechanism in a direction perpendicular to the extension of the rail to be ground. The grinding structure is connected to the output end of the rotation drive mechanism. The vertical drive mechanism is mounted on the support mechanism, and its output end is connected to the main structure of the rotation drive mechanism. The traveling unit includes two traveling sections, which are distributed on both sides of the grinding unit along its direction of travel and are movably mounted on the rail to be ground along its extension direction. Both traveling sections are rotatably engaged with the grinding unit, and either traveling section is provided with the swing drive mechanism. Each traveling section includes a guide plate and a swing link. The guide plate is equipped with a guide wheel that travels along the rail to be ground. One end of the swing link is mounted on the grinding unit, and the other end is rotatably engaged with the guide plate. The swing drive mechanism is mounted on the guide plate of either traveling section. The traveling section also includes a wheel adapter plate and wheels. The wheel adapter plate is connected to the guide adapter plate on the side away from the grinding unit. The wheels are rotatably mounted on the wheel adapter plate and travel along the rail to be ground. The wheels are mounted below the wheel adapter plate. The guide adapter plate is connected to the wheel adapter plate to form a rigid connection frame. A sliding adapter plate is installed on the wheel adapter plate, and a groove is provided on the side of the guide adapter plate near the wheel adapter plate. The groove extends vertically, and the sliding adapter plate and the guide adapter plate cooperate through the groove. A locking handle is provided on the sliding adapter plate, and the end of the sliding adapter plate is locked in the groove by the locking handle.

2. The rail surface grinding equipment according to claim 1, characterized in that, The rotary drive mechanism is equipped with a guide mechanism for movably mounting on the support mechanism. The guide mechanism includes a slider, which is mounted on the rotary drive mechanism. A guide rod is mounted on the support mechanism and extends in a direction perpendicular to the rail to be ground, and slides in cooperation with the slider.

3. The rail surface grinding equipment according to claim 2, characterized in that, The vertical drive mechanism includes: a guide rod drive motor, which is mounted on the support mechanism; The drive guide rod is a lead screw structure and is rotatably mounted on the support mechanism, extending in a vertical direction. The end of the drive guide rod is connected to the output end of the guide rod drive motor. The drive guide rod is threadedly connected to the slider.

4. The rail surface grinding equipment according to claim 2, characterized in that, The support mechanism includes: an upper vertical adapter plate with an upper limit hole, the upper limit hole surrounding the outer periphery of the rotation drive mechanism and close to the outer periphery wall of the rotation drive mechanism; A downward-facing adapter plate is arranged parallel to and spaced below the upper vertical adapter plate, and has a lower limit hole coaxial with the upper limit hole. The output end of the rotation drive mechanism passes through the lower limit hole and is connected to the grinding structure.

5. The rail surface grinding equipment according to claim 4, characterized in that, A plurality of guide rods are provided between the upper vertical adapter plate and the lower vertical adapter plate. Each guide rod surrounds the outer periphery of the rotation drive mechanism, and both ends of the guide rod are respectively connected to the upper vertical adapter plate and the lower vertical adapter plate.

6. The rail surface grinding equipment according to claim 4, characterized in that, The rotation drive mechanism uses a grinding structure to drive the motor.

7. The rail surface grinding equipment according to claim 1, characterized in that, The swing drive mechanism uses a swing drive motor.

8. The rail surface grinding equipment according to claim 1, characterized in that, Also includes: A frame is mounted on the traveling unit and has a hollow area located on one side of the traveling unit, and the grinding unit is integrated into the hollow area; An auxiliary wheel travels along a rail parallel to the rail to be ground and is connected to the frame by an auxiliary connecting rod.

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