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

Abstract

The embodiment of the utility model 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] This application relates to the technical fields of rail transit and rail grinding, and particularly to a rail grinding trolley and a grinding vehicle. Background Art

[0002] During the operation of a train, due to the long-term harsh working environment of the track, multiple reasons such as dynamic action, natural environment, and the quality of the track itself lead to the continuous deterioration of the rail surface conditions and the deformation of the rail head, resulting in defects such as corrugation, overhang, spalling, and fish-scale on the rail surface, which affect the train operation safety. Rail grinding can remove the unevenness on 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, increasing the smoothness of the track surface, and extending the service life of the track.

[0003] Currently, rail grinding units generally exist in units of single grinding heads. During the working process of this rail grinding unit, the elimination effect on long-wave grinding is poor, the grinding quality is not good, and at the same time, phenomena such as secondary corrugation are likely to occur.

[0004] In view of this, this application is specifically proposed. Summary of the Invention

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

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

[0007] An external frame;

[0008] At least one set of grinding unit mechanisms, spaced apart and arranged on the external frame; the grinding unit mechanisms can rotate relative to the connection with the external frame; the grinding unit mechanisms are used for grinding the rail surface of the track;

[0009] A linear mechanism, correspondingly arranged with the grinding unit mechanism; in the working state, it is used to adjust the grinding angle of the grinding unit mechanism to the rail surface of the track;

[0010] An internal frame, arranged on the external frame;

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

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

[0013] The sliding 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 sliding sleeve assembly;

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

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

[0016] A vehicle frame;

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

[0018] The embodiment of the present application provides a multi-grinding head interlocking grinding device and a rail grinding vehicle; the multi-grinding head interlocking grinding device includes an outer frame, at least one set of grinding unit mechanisms and a linear mechanism; the grinding unit mechanisms are arranged at intervals in the outer frame; the grinding unit mechanisms can rotate relative to the connection with the outer frame; the grinding unit mechanisms are used for grinding the rail surface of the track; the linear mechanism is correspondingly arranged with the grinding unit mechanisms; in the working state, it is used to adjust the grinding angle of the grinding unit mechanism for the rail surface. The technical problems of poor elimination effect of long-wave wear, poor grinding quality, and easy occurrence of secondary wave wear and other phenomena are solved by the multi-grinding head interlocking grinding device provided by the embodiment of the present application. 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 schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0020] Figure 1 is a three-dimensional structural schematic diagram of the multi-grinding head interlocking grinding device provided by the embodiment of the present application;

[0021] Figure 2 is a partial structural schematic of the multi-grinding head interlocking grinding device provided by the embodiment of the present application Figure 1 ;

[0022] Figure 3 is Figure 2 a three-dimensional structural schematic diagram of;

[0023] Figure 4 is Figure 2 a schematic diagram of the rail grinding state of;

[0024] Figure 5 is a partial structural schematic of the multi-grinding head interlocking grinding device provided by the embodiment of the present application Figure 2 ;

[0025] Figure 6 Schematic diagram of the installation of the locking mechanism and the lifting mechanism provided by the embodiment of the present application;

[0026] Figure 7 Top view of the installation of the locking mechanism and the lifting mechanism provided by the embodiment of the present application;

[0027] Figure 8 Schematic plan view of the installation of the rail-leaning mechanism and the grinding mechanism provided by the embodiment of the present application;

[0028] Figure 9 Schematic plan view of the rail-leaning mechanism provided by the embodiment of the present application;

[0029] Figure 10 Schematic three-dimensional structure diagram of the rail-leaning mechanism provided by the embodiment of the present application;

[0030] Figure 11 Schematic diagram of the rail-leaning state of the rail-leaning mechanism provided by the embodiment of the present application;

[0031] Reference numerals:

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

[0033] 2. Grinding unit mechanism; 201. Grinding driving part; 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 driving part connecting seat; 502. Lifting driving part; 503. Lifting guide column; 504. Sleeve assembly;

[0037] 6. Locking mechanism; 601. Tightening sleeve connecting seat; 602. Tightening sleeve; 603. Tightening slide bar; 604. Spherical plain bearing; 605. Axle seat;

[0038] 7. Rail-leaning mechanism; 701. Rail-leaning guiding connection assembly; 711. Ball spline fixing seat; 712. Ball spline; 702. Rail-leaning assembly; 721. Rail-leaning connection support; 722. Rail-leaning wheel connecting frame; 723. Rail-leaning wheel; 703. Rail-leaning vertical driving assembly; 731. Rail-leaning vertical driving part; 732. Fork seat. Detailed implementation manners

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

[0040] In this embodiment, the direction along the extension of the railway line is called the longitudinal direction, the horizontal direction perpendicular to the extension direction of the railway line is called the transverse direction, and the direction perpendicular to the horizontal plane is called the vertical or vertical direction.

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

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

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

[0044] As Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, on the basis of the above solution, the multi-grinding-head interlocking grinding device provided by the embodiment of the present application further includes an inner frame arranged inside the outer frame 1; the lower end of the inner frame is a deflection support 4; the longitudinal ends of the deflection support 4 are rotatably connected to the outer frame 1; the deflection support 4 is provided with an installation space for accommodating the grinding unit mechanisms 2 along the longitudinal direction.

[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 deflect relative to the external frame 1 to further realize the deflection adjustment of the grinding unit mechanism 2 to adapt to the grinding operation on the track surface.

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

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

[0048] It can be understood that the linear actuator 302 can be an electric cylinder or other driving mechanisms that can drive the deflection of the deflection support.

[0049] On the basis of the above solution, V-shaped brackets 101 are arranged at the longitudinal ends of the external frame 1; the linear actuator fixed seat 301 is arranged at the top of the V-shaped brackets 101; the deflection support 4 is arranged at the bottom of the V-shaped brackets 101.

[0050] As a specific embodiment, the linear actuator adopts an electric cylinder. Positioning holes are correspondingly arranged at the longitudinal ends of the deflection support 4 and the lower ends of the V-shaped brackets 101; the lower ends of the V-shaped brackets 101 are installed in the positioning holes 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 to adjust the deflection angle of the grinding unit mechanism 2 to meet the requirements of the track surface to be ground. In 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 operates, the deflection support 4 can rotate accordingly, thereby driving the grinding unit mechanism 2 to deflect. Adjusting the stroke of the electric cylinder can control the deflection angle of the grinding unit. Further pressing down can grind different tangents of the rail profile, so as to realize the control of the grinding angle.

[0051] As Figure 1 、 Figure 3 and Figure 5 shown, on the basis of the above solution, the multi-grinding head interlocking grinding device provided by 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 working 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, an embodiment of the present application provides a specific implementation manner of the lifting mechanism. The lifting mechanism 5 includes a lifting drive member connecting seat 501, which is arranged on the outer 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 the driving force for the grinding unit mechanism 2 to move in the vertical direction.

[0055] It can be understood 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 in the vertical direction.

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

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

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

[0059] Such as Figure 5 、 Figure 6 、 Figure 7 And Figure 8 shown, on the basis of the above solution, 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 working state, the grinding unit mechanisms 2 can be interlocked.

[0060] On the basis of the above solution, an embodiment of the present application provides a specific implementation manner of the locking mechanism, including a tensioning sleeve connecting seat 601, a tensioning sleeve 602, a tensioning slide rod 603, a spherical plain bearing 604, a shaft seat 605 and a connecting member.

[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 , Figure 9 , Figure 10 and Figure 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-leaning guiding connection assembly 701 is arranged on the inner frame; the rail-leaning assembly 702 is arranged on the rail-leaning guiding connection assembly 701; the rail-leaning assembly 702 can move vertically relative to the inner frame; the rail-leaning vertical driving assembly 703 is arranged on the rail-leaning assembly 702 and is used to provide the driving force for the vertical movement of the rail-leaning assembly 702.

[0070] On the basis of the above solution, an embodiment of the present application provides a specific implementation manner of the rail-leaning guiding connection assembly. The rail-leaning guiding connection assembly 701 includes a ball spline fixed seat 711 and a ball spline 712.

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

[0072] On the basis of the above solution, an embodiment of the present application provides a specific implementation manner of the rail-leaning assembly. 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-leaning connection support 721 extends in the vertical direction and is connected to the rail-leaning guiding connection assembly 701; the rail-leaning wheel connection frame 722 is arranged at the bottom end of the rail-leaning connection support 721; the rail-leaning wheel 723 is arranged on the rail-leaning wheel connection frame 722. In the working state, the rail-leaning wheel 723 is in close contact with the track.

[0074] On the basis of the above solution, an embodiment of the present application provides a specific implementation manner of the rail-leaning vertical driving assembly. The rail-leaning vertical driving assembly 703 includes a rail-leaning vertical driving member 731; the rail-leaning vertical driving member 731 is arranged on the inner frame; the output end of the rail-leaning vertical driving member 731 is connected to the rail-leaning assembly 702 through a fork seat 732; the rail-leaning vertical driving member 731 is used to provide the driving force for the vertical movement of the rail-leaning assembly.

[0075] It should be noted that the rail-leaning vertical driving member 731 can be an electric cylinder, a cylinder, or other driving mechanisms that can provide the driving force for the vertical movement of the rail-leaning assembly.

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

[0077] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

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

[0079] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present 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 can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as 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 equivalent technologies, the present application is also intended to include these changes and modifications.

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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