Multi-grinding-head interlocking grinding device and track grinding wagon

Abstract

The embodiment of the invention provides a multi-grinding-head interlocking grinding device and a track grinding wagon. The multi-grinding-head interlocking grinding device comprises an outer frame, at least one set of grinding unit mechanism and a linear mechanism. The grinding unit mechanisms are arranged on the outer frame at intervals. The grinding unit mechanism can rotate relative to the connecting position of the grinding unit mechanism and the outer frame. The grinding unit mechanism is used for grinding the rail surface of the rail; the linear mechanism and the polishing unit mechanism are correspondingly arranged; in the working state, the angle adjusting mechanism is used for adjusting the grinding angle of the grinding unit mechanism to the rail surface. According to the multi-grinding-head interlocking grinding device provided by the embodiment of the invention, the technical problems that the long-wave grinding eliminating effect is poor, the grinding quality is poor, and meanwhile the phenomena of secondary corrugation and the like are likely to occur are solved.

Description

Technical Field

[0001] The present application relates to the technical field of rail transportation and rail grinding, and in particular to a rail grinding trolley and a grinding vehicle. Background Art

[0002] During train operation, the track is in a harsh working environment for a long time. Multiple reasons such as dynamic effects, natural environment and track quality lead to the continuous deterioration of track surface conditions and deformation of rail heads, resulting in defects such as wave wear, fat edges, peeling, and fish scales on the track surface, which affect driving safety. Track grinding can remove the unevenness of the track surface and restore the rail head to the initial design requirements, thereby effectively improving the wheel-rail relationship, slowing down the development of track surface defects, improving the smoothness of the track surface, and extending the service life of the track.

[0003] At present, rail grinding units generally exist in the form of single grinding heads. During operation, the rail grinding unit has poor effect in eliminating long wave grinding, poor grinding quality, and is prone to secondary wave grinding and other phenomena.

[0004] In view of this, this application is hereby filed. Summary of the invention

[0005] In order to solve one of the above-mentioned technical defects, a multi-grinding head interlocking grinding device and a track grinding vehicle are provided in an embodiment of the present application.

[0006] According to a first aspect of an embodiment of the present application, a multi-grinding head interlocking grinding device is provided, comprising:

[0007] External frame;

[0008] At least one set of grinding unit mechanisms, arranged at intervals on the external frame; the grinding unit mechanisms can rotate relative to the connection with the external frame; the grinding unit mechanisms are used to grind the rail surface of the rail;

[0009] The linear mechanism is set corresponding to the grinding unit mechanism; in the operating state, it is used to adjust the grinding angle of the grinding unit mechanism on the track surface;

[0010] The inner frame is set on the outer frame;

[0011] A deflection support is arranged at the lower end of the internal frame; both longitudinal ends of the deflection support are rotatably connected to the external frame; the deflection support is provided with an installation space for accommodating a grinding unit mechanism along the longitudinal direction;

[0012] Lifting guide columns are arranged in groups of two on the deflection support, and the two lifting guide columns in each group are symmetrically arranged at the longitudinal ends of the grinding unit mechanism;

[0013] A sleeve assembly is sleeved on the lifting guide column and is used to connect the lifting guide column and the grinding unit mechanism; the grinding unit mechanism moves vertically along the lifting guide column through the sleeve assembly;

[0014] The locking mechanism is used to connect adjacent sleeve assemblies of two grinding unit mechanisms; in the operating state, the grinding unit mechanisms can be interlocked.

[0015] According to a second aspect of the present application, a rail grinding vehicle is provided, comprising:

[0016] Frame;

[0017] At least one of the above-mentioned multi-grinding head interlocking grinding devices is arranged on the frame.

[0018] The embodiment of the present application provides a multi-grinding head interlocking grinding device and a track grinding vehicle; wherein the multi-grinding head interlocking grinding device comprises an external frame, at least one group of grinding unit mechanisms and a linear mechanism; the grinding unit mechanisms are arranged at intervals on the external frame; the grinding unit mechanisms can rotate relative to the connection with the external frame; the grinding unit mechanisms are used to grind the track surface of the track; the linear mechanism is arranged corresponding to the grinding unit mechanisms; in the operating state, it is used to adjust the grinding angle of the grinding unit mechanisms on the track surface. The multi-grinding head interlocking grinding device provided by the embodiment of the present application solves the technical problems of poor long wave grinding elimination effect, poor grinding quality, and easy occurrence of secondary wave grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a multi-grinding head interlocking grinding device provided in an embodiment of the present application;

[0021] Figure 2 Schematic diagram of the partial structure of the multi-grinding head interlocking grinding device provided in the embodiment of the present application Figure 1 ;

[0022] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure;

[0023] Figure 4 for Figure 2 Schematic diagram of track grinding status;

[0024] Figure 5 Schematic diagram of the partial structure of the multi-grinding head interlocking grinding device provided in the embodiment of the present application Figure 2 ;

[0025] Figure 6 A schematic diagram of the installation of the locking mechanism and the lifting mechanism provided in the embodiment of the present application;

[0026] Figure 7 A top view of the installation of the locking mechanism and the lifting mechanism provided in the embodiment of the present application;

[0027] Figure 8 A schematic diagram of the installation plan of the rail leaning mechanism and the grinding mechanism provided in the embodiment of the present application;

[0028] Fig. 9 A schematic plan view of a rail-supporting mechanism provided in an embodiment of the present application;

[0029] Fig.10 A schematic diagram of the three-dimensional structure of the rail-supporting mechanism provided in an embodiment of the present application;

[0030] Fig.11 A schematic diagram of the rail-leaning state of the rail-leaning mechanism provided in an embodiment of the present application;

[0031] Reference numerals:

[0032] 1. External frame; 101. V-shaped bracket;

[0033] 2. Grinding unit mechanism; 201. Grinding drive member; 202. Grinding wheel;

[0034] 3. Linear mechanism; 301. Linear actuator fixing seat; 302. Linear actuator;

[0035] 4. Deflection support;

[0036] 5. Lifting mechanism; 501. Lifting drive member connecting seat; 502. Lifting drive member; 503. Lifting guide column; 504. Sliding sleeve assembly;

[0037] 6. Locking mechanism; 601. Tension sleeve connecting seat; 602. Tension sleeve; 603. Tension slide rod; 604. Spherical bearing; 605. Shaft seat;

[0038] 7. Rail-resting mechanism; 701. Rail-resting guide connection assembly; 711. Ball spline fixing seat; 712. Ball spline; 702. Rail-resting assembly; 721. Rail-resting connection support; 722. Rail-resting wheel connecting frame; 723. Rail-resting wheel; 703. Rail-resting vertical drive assembly; 731. Rail-resting vertical drive member; 732. Fork seat. DETAILED DESCRIPTION

[0039] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0040] In this embodiment, the direction in which the railway line extends is referred to as the longitudinal direction, the horizontal direction perpendicular to the direction in which the railway line extends is referred to as the transverse direction, and the direction perpendicular to the horizontal plane is referred to as the vertical direction or vertical direction;

[0041] Among them, the longitudinal direction is the same as the operating direction of the trolley and the longitudinal direction of the external frame; the longitudinal direction of the external frame is consistent with the length direction of the external frame.

[0042] like Figure 1 As shown, the embodiment of the present application provides a multi-grinding head interlocking grinding device, including an external frame 1, at least one group of grinding unit mechanisms 2 and a linear mechanism 3. The grinding unit mechanisms 2 are arranged at intervals on the external frame 1; the grinding unit mechanisms 2 can rotate relative to the connection with the external frame 1; the grinding unit mechanisms 2 are used to grind the rail surface of the track. The linear mechanism 3 is arranged corresponding to the grinding unit mechanism 2; in the working state, it is used to adjust the grinding angle of the grinding unit mechanism 2 on the rail surface of the track.

[0043] Specifically, the embodiment of the present application provides a multi-grinding head interlocking grinding device, including an external frame, at least one group of grinding unit mechanisms and a linear mechanism; the grinding unit mechanisms are arranged at intervals on the external frame; the grinding unit mechanisms can rotate relative to the connection with the external frame; the grinding unit mechanisms are used to grind the rail surface of the track; the linear mechanism is arranged corresponding to the grinding unit mechanisms; in the operating state, it is used to adjust the grinding angle of the grinding unit mechanisms on the rail surface of the track. The multi-grinding head interlocking grinding device provided by the embodiment of the present application solves the technical problems of poor long wave grinding elimination effect, poor grinding quality, and easy occurrence of secondary wave grinding.

[0044] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, on the basis of the above scheme, the multi-grinding head interlocking grinding device provided in the embodiment of the present application also includes an internal frame arranged on the external frame 1; the lower end of the internal frame is a deflection support 4; the longitudinal ends of the deflection support 4 are rotatably connected to the external frame 1; the deflection support 4 is provided with an installation space along the longitudinal direction for accommodating the grinding unit mechanism 2.

[0045] It can be understood that the grinding unit mechanism 2 is arranged at intervals on the deflection support 4; the longitudinal ends of the deflection support 4 are rotatably connected to the external frame 1, and the deflection support 4 can be deflected relative to the external frame 1, thereby further realizing the deflection adjustment of the grinding unit mechanism 2 to adapt to the grinding operation of the track surface.

[0046] like Figure 1 As shown, based on the above solution, the embodiment of the present application provides a specific implementation of a linear mechanism, and the linear machine 3 includes a linear actuator fixing seat 301 and a linear actuator 302.

[0047] The linear actuator fixing seat 301 is arranged on one side of the external frame 1 and is located at the top of the external frame 1; the linear actuator 302 is arranged at an angle, one end of the linear actuator 302 is rotatably connected to the linear actuator fixing seat 301, and the other end is movably connected to the deflection support 4; the linear actuator 302 is used to provide a driving force for the rotation of the deflection support.

[0048] It is understandable that the linear actuator 302 may be an electric cylinder, or other driving mechanisms that can drive the deflection support to deflect.

[0049] On the basis of the above scheme, V-shaped brackets 101 are provided at both longitudinal ends of the external frame 1 ; the linear actuator fixing seat 301 is provided at the top end of the V-shaped bracket 101 ; and the deflection support 4 is provided at the bottom end of the V-shaped bracket 101 .

[0050] As a specific embodiment, the linear actuator adopts an electric cylinder, and the longitudinal ends of the deflection support 4 and the lower end of the V-shaped bracket 101 are correspondingly provided with positioning holes; the lower end of the V-shaped bracket 101 is installed in the positioning hole of the deflection support 4 through a rotating shaft; the deflection support 4 can rotate around this rotating shaft, and the grinding unit mechanism 2 rotates around this rotating shaft along with the deflection support 4, and the deflection angle of the grinding unit mechanism 2 is adjusted to meet the requirements of the track surface to be ground. In the implementation, the moving end of the electric cylinder is fixed to the deflection support 4, and the fixed end is fixed to the top of the V-shaped bracket 101; when the electric cylinder is actuated, the deflection support 4 can rotate accordingly, thereby driving the grinding unit mechanism 2 to deflect, and the deflection angle of the grinding unit can be controlled by adjusting the stroke of the electric cylinder, and further downward pressure can be used to grind different tangents of the rail profile, thereby realizing the control of the grinding angle.

[0051] like Figure 1 , Figure 3 and Figure 5 As shown, based on the above solution, the multi-grinding head interlocking grinding device provided in the embodiment of the present application further includes a lifting mechanism 5;

[0052] The lifting mechanism 5 is arranged on the deflection support 4 and connected to the grinding unit mechanism 2; it is used to drive the grinding unit mechanism 2 to move in the vertical direction; in the operating state, the lifting mechanism 5 drives the grinding unit mechanism 2 to move to a height position at a preset distance from the track surface.

[0053] On the basis of the above solution, the embodiment of the present application provides a specific implementation of the lifting mechanism, where the lifting mechanism 5 includes a lifting drive member connecting seat 501 , which is arranged on the external frame 1 .

[0054] The lifting drive member 502 is arranged on the lifting drive member connecting seat 501, and the output end of the lifting drive member 502 is connected to the grinding unit mechanism 2; the lifting drive member 502 is used to provide a driving force for the grinding unit mechanism 2 to move vertically.

[0055] It is understandable that the lifting drive member 502 can be an electric cylinder, an oil cylinder, a pneumatic cylinder, or other drive mechanisms that can drive the grinding unit mechanism 2 to move vertically.

[0056] like Figure 6 As shown, based on the above solution, the multi-grinding head interlocking grinding device of the embodiment of the present application further includes a lifting guide column 503 and a sliding sleeve assembly 504.

[0057] The lifting guide columns 503 are arranged in groups of two on the deflection support 4, and the two lifting guide columns 503 in each group are symmetrically arranged at the longitudinal ends of the grinding unit mechanism 2; the sliding sleeve assembly 504 is sleeved on the lifting guide column 503, and is used to connect the lifting guide column 503 and the grinding unit mechanism 2; the grinding unit mechanism 2 moves vertically with the lifting guide column 503 through the sliding sleeve assembly 504.

[0058] It is worth noting that other guide structures that can play the same role as the guide post sliding sleeve assembly can also be used.

[0059] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, based on the above scheme, the multi-grinding head interlocking grinding device of the embodiment of the present application further includes a locking mechanism 6; the locking mechanism 6 is used to connect the adjacent sliding sleeve assemblies 504 of the two grinding unit mechanisms 2; in the operating state, the grinding unit mechanisms 2 can be interlocked.

[0060] On the basis of the above scheme, the embodiment of the present application provides a specific implementation of the locking mechanism, including a tension sleeve connecting seat 601, a tension sleeve 602, a tension slide rod 603, a spherical bearing 604, a shaft seat 605 and a connecting piece.

[0061] The tensioning sleeve connecting seat 601 is connected to one of the adjacent sleeve assemblies 504; the tensioning sleeve 602 is arranged on the tensioning sleeve connecting seat 601; the tensioning slide rod 603 is sleeved in the tensioning sleeve 602, extends along the vertical direction and the tensioning slide rod 603 is arranged parallel to one side of the lifting guide column 503; the joint bearing 604 is arranged at the bottom end of the tensioning slide rod 603; the joint bearing 604 is provided with a first connecting through hole; the shaft seat 605 is arranged on another sleeve assembly of the adjacent sleeve assembly 504; the shaft seat 605 and the joint bearing 604 are correspondingly provided with a second connecting through hole; in the connected state, the connecting piece passes through the first connecting through hole and the second connecting through hole to fix the joint bearing 604 to the shaft seat 605.

[0062] Specifically, when the tensioning sleeve 602 is in action, two adjacent grinding unit mechanisms 2 are interlocked, and the pressing and lifting actions are completely synchronized, thereby improving the ability to eliminate long-wave grinding.

[0063] like Figures 1 to 5 As shown, based on the above solution, the embodiment of the present application provides a specific embodiment of the grinding unit mechanism 2, and the grinding unit mechanism 2 includes a grinding drive 201 and a grinding wheel 202.

[0064] The grinding drive 201 is used to provide the driving force required for the grinding operation of the grinding unit mechanism 2; the grinding wheel 202 is arranged at the output end of the grinding drive 201; the grinding wheel 202 is used to perform grinding operations on the top surface of the track.

[0065] It is worth noting that the grinding drive member 201 may be a motor, or other driving mechanism that drives the grinding wheel 202 to rotate and grind the top surface of the rail.

[0066] like Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, based on the above solution, the multi-grinding head interlocking grinding device provided in the embodiment of the present application further includes a rail-resting mechanism 7.

[0067] The rail leaning mechanism 7 is arranged in the internal frame and is located between two adjacent grinding unit mechanisms 2; in the working state, the rail leaning mechanism 7 is closely attached to the rail to realize rail leaning.

[0068] On the basis of the above scheme, the embodiment of the present application provides a specific implementation of the rail leaning mechanism, and the rail leaning mechanism 7 includes a rail leaning guide connection component 701, a rail leaning component 702 and a rail leaning vertical driving component 703.

[0069] The rail guide connection component 701 is arranged on the internal frame; the rail component 702 is arranged on the rail guide connection component 701; the rail component 702 can move vertically relative to the internal frame; the rail vertical driving component 703 is arranged on the rail component 702, and is used to provide driving force for the rail component 702 to move vertically.

[0070] On the basis of the above-mentioned scheme, the embodiment of the present application provides a specific implementation of a rail-supporting guide connection assembly, and the rail-supporting guide connection assembly 701 includes a ball spline fixing seat 711 and a ball spline 712 .

[0071] The ball spline fixing seat 711 is fixedly arranged on the internal frame; the ball spline 712 is correspondingly sleeved on the ball spline fixing seat 711, and the upper and lower ends of the ball spline 712 are fixedly connected to the rail assembly 702 through the ball spline fixing seat 713.

[0072] On the basis of the above solution, the embodiment of the present application provides a specific implementation of a rail leaning assembly, where the rail leaning assembly 702 includes a rail leaning connection support 721 , a rail leaning wheel connection frame 722 and a rail leaning wheel 723 .

[0073] The rail connection support 721 extends in the vertical direction and is connected to the rail guide connection assembly 701; the rail wheel connection frame 722 is arranged at the bottom end of the rail connection support 721; the rail wheel 723 is arranged on the rail wheel connection frame 722, and in the working state, the rail wheel 723 is close to the rail.

[0074] On the basis of the above scheme, the embodiment of the present application provides a specific implementation of the rail-resting vertical drive assembly, and the rail-resting vertical drive assembly 703 includes a rail-resting vertical drive member 731; the rail-resting vertical drive member 731 is arranged on the internal frame; the output end of the rail-resting vertical drive member 731 is connected to the rail-resting assembly 702 through a fork seat 732; the rail-resting vertical drive member 731 is used to provide driving force for the rail-resting assembly to move vertically.

[0075] It is worth noting that the rail-supporting vertical driving member 731 may be an electric cylinder, a pneumatic cylinder, or other driving mechanism that can generate a driving force for the rail-supporting assembly to move vertically.

[0076] An embodiment of the present application provides a rail grinding vehicle, which is characterized by comprising a frame and a multi-grinding head interlocking grinding device, which is arranged on the frame.

[0077] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0080] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0081] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A multi-grinding head interlocking grinding device, characterized in that: include: External frame; At least one set of grinding unit mechanisms, arranged at intervals on the external frame; the grinding unit mechanisms can rotate relative to the connection with the external frame; the grinding unit mechanisms are used to grind the rail surface of the rail; The linear mechanism is set corresponding to the grinding unit mechanism; in the operating state, it is used to adjust the grinding angle of the grinding unit mechanism on the track surface; The inner frame is set on the outer frame; A deflection support is arranged at the lower end of the internal frame; both longitudinal ends of the deflection support are rotatably connected to the external frame; the deflection support is provided with an installation space for accommodating a grinding unit mechanism along the longitudinal direction; Lifting guide columns are arranged in groups of two on the deflection support, and the two lifting guide columns in each group are symmetrically arranged at the longitudinal ends of the grinding unit mechanism; A sleeve assembly is sleeved on the lifting guide column and is used to connect the lifting guide column and the grinding unit mechanism; the grinding unit mechanism moves vertically along the lifting guide column through the sleeve assembly; A locking mechanism for connecting adjacent sleeve assemblies of two grinding unit mechanisms; In the operating state, the grinding unit mechanism can be interlocked.

2. The multi-grinding head interlocking grinding device according to claim 1, characterized in that: The linear mechanism comprises: A linear actuator fixing seat is arranged on one side of the outer frame and located at the top of the outer frame; The linear actuator is arranged obliquely, one end of which is rotatably connected to the linear actuator fixing seat, and the other end of which is movably connected to the deflection support, so as to provide a driving force for the rotation of the deflection support.

3. The multi-grinding head interlocking grinding device according to claim 1, characterized in that: Also includes: A lifting mechanism, arranged on the deflection support and connected to the grinding unit mechanism; Used to drive the grinding unit mechanism to move in the vertical direction; In the operating state, the lifting mechanism drives the grinding unit mechanism to move to a height position at a preset distance from the track surface.

4. The multi-grinding head interlocking grinding device according to claim 3, characterized in that: The lifting mechanism comprises: A lifting drive member connection seat, arranged on the external frame; The lifting drive member is arranged on the lifting drive member connecting seat, and the output end of the lifting drive member is connected to the grinding unit mechanism; and is used to provide driving force for the grinding unit mechanism to move vertically.

5. The multi-grinding head interlocking grinding device according to claim 1, characterized in that: The locking mechanism comprises: A tension sleeve connecting seat connected to one of the adjacent sleeve assemblies; A tension sleeve, arranged on the tension sleeve connecting seat; A tensioning slide rod is sleeved in the tensioning sleeve and extends in the vertical direction and is arranged parallel to one side of the lifting guide column; A joint bearing is arranged at the bottom end of the tensioning slide rod; the joint bearing is provided with a first connecting through hole; A shaft seat is arranged on another of the adjacent sleeve assemblies; the shaft seat and the spherical bearing are provided with a second connecting through hole correspondingly; The connecting piece, in a connected state, passes through the first connecting through hole and the second connecting through hole to fix the spherical bearing to the shaft seat.

6. The multi-grinding head interlocking grinding device according to claim 1, characterized in that: The grinding unit mechanism comprises: A grinding drive member, used to provide the driving force required for the grinding operation of the grinding unit mechanism; The grinding wheel is arranged at the output end of the grinding drive member and is used for grinding the top surface of the track.

7. The multi-grinding head interlocking grinding device according to claim 2, characterized in that: V-shaped brackets are arranged at both longitudinal ends of the external frame; the linear actuator fixing seat is arranged at the top end of the V-shaped bracket; and the deflection support is arranged at the bottom end of the V-shaped bracket.

8. The multi-grinding head interlocking grinding device according to claim 1, characterized in that: Also includes: A rail-supporting mechanism is arranged on the internal frame and is located between two adjacent grinding unit mechanisms; In the working state, the rail leaning mechanism is closely attached to the rail to realize rail leaning.

9. The multi-grinding head interlocking grinding device according to claim 8, characterized in that: The rail-supporting mechanism comprises: A rail guide connection assembly is arranged on the internal frame; A rail support assembly is arranged on the rail support guide connection assembly; the rail support assembly can move vertically relative to the internal frame; The rail-supporting vertical driving assembly is arranged on the rail-supporting assembly and is used to provide a driving force for the rail-supporting assembly to move vertically.

10. The multi-grinding head interlocking grinding device according to claim 9, characterized in that: The rail guide connection assembly includes: A ball spline fixing seat is fixedly arranged on the internal frame; The ball spline is correspondingly sleeved on the ball spline fixing seat, and the upper and lower ends of the ball spline are fixedly connected to the rail support assembly through the ball spline fixing seat.

11. The multi-grinding head interlocking grinding device according to claim 10, characterized in that: The rail support assembly comprises: A rail connection support extending in a vertical direction and connected to the rail guide connection assembly; The rail-supporting wheel connecting frame is arranged at the bottom end of the rail-supporting connecting support; The rail-supporting wheel is arranged on the rail-supporting wheel connecting frame. In the working state, the rail-supporting wheel is closely attached to the rail.

12. The multi-grinding head interlocking grinding device according to claim 10, characterized in that: The rail-supported vertical drive assembly comprises: The rail-supporting vertical driving member is arranged on the internal frame; the output end of the rail-supporting vertical driving member is connected to the rail-supporting assembly through a fork seat, so as to provide driving force for the rail-supporting assembly to move vertically.

13. A rail grinding vehicle, characterized in that: include: Frame; At least one multi-grinding head interlocking grinding device as described in any one of claims 1-12 is arranged on the frame.

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