Rail end face grinding device

Abstract

The present invention provides a rail end face grinding device, which includes an outer frame, a mounting bracket, a first slide, a transverse drive device, a deflection drive device, a pressurizing drive device and a grinding head unit for grinding the end face of the rail. The transverse drive device is driven and connected to the outer frame for driving the outer frame to move back and forth horizontally; the mounting bracket can be raised and lowered in the vertical direction, and the first slide is slidingly or rollingly connected to the outer frame; two ends of the pressurizing drive device are respectively rotatably connected to the mounting bracket and the grinding head unit, and the pressurizing drive device is used to drive the grinding head unit to rise and fall vertically compared with the mounting bracket; the mounting bracket is rotatably connected to the first slide, and the two ends of the deflection drive device are respectively hinged to the first slide and the mounting bracket, and the deflection drive device can drive the mounting bracket to rotate in a vertical plane compared to the first slide, thereby ensuring that the entire surface of the rail end face can be ground, thereby improving the grinding efficiency of the rail end face.

Description

Technical Field

[0001] The present invention relates to the technical field of rails, and in particular to a rail end face grinding device. Background Art

[0002] Rail grinding is an important means of railway track maintenance. It is mainly used for welding joint treatment, repairing rail defects such as fat edge, wave-type wear, spalling and falling blocks, and repairing rail profiles, improving passenger comfort and extending rail service life.

[0003] End grinding is an important method for rail grinding. Currently, the lifting system of rail end grinding devices almost always uses a guide column or an articulated four-bar mechanism. The guide column mechanism offers small overall dimensions and precise control.

[0004] The applicant has discovered that the prior art suffers from at least the following technical issues: Incorporating a 1° cutting angle in the prior art presents significant processing difficulties, requires high precision, and is susceptible to dust contamination and jamming. While the four-bar mechanism reduces jamming due to its reduced contact area, it also results in a larger mechanism and inconvenient maintenance. Prior art rail grinding devices can only grind the rail end face by continuously raising and lowering the grinding vehicle and adjusting its position. This results in complex operation, a high failure rate, and difficulty in maintenance. Summary of the Invention

[0005] The present invention aims to provide a rail end grinding device to address the high failure rate and difficult maintenance issues of existing rail end grinding equipment. The various technical effects achieved by the preferred solution among the various technical solutions provided by the present invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The rail end face grinding device provided by the present invention comprises an outer frame, a mounting bracket, a first slide, a traverse drive device, a deflection drive device, a pressurizing drive device and a grinding head unit for grinding the rail end face, wherein:

[0008] The transverse driving device is drivingly connected to the outer frame and is used to drive the outer frame to move horizontally back and forth;

[0009] The mounting bracket is vertically movable, and the first slide is slidably or rollingly connected to the outer frame;

[0010] The two ends of the pressurizing drive device are respectively hinged to the mounting bracket and the grinding head unit, and the pressurizing drive device is used to drive the grinding head unit to vertically rise and fall relative to the mounting bracket;

[0011] The mounting bracket is rotationally connected to the first slide, and both ends of the deflection drive device are hinged to the first slide and the mounting bracket respectively. The deflection drive device can drive the mounting bracket to rotate in a vertical plane compared to the first slide.

[0012] Preferably, the rail end face grinding device further comprises a lifting drive device, both ends of which are hinged to the outer frame and the mounting bracket respectively, and the lifting drive device is used to drive the mounting bracket and the first slide to rise and fall synchronously in the vertical direction.

[0013] Preferably, the first slide comprises a slide body and a deflection slider, wherein:

[0014] The slide body is rotatably connected to the mounting bracket, the deflection slider is fixed to the slide body, the slide body is located on the inner side of the outer frame, a vertical guide opening is provided on the outer frame, the deflection slider extends out of the vertical guide opening and rises and falls along the vertical guide opening along with the mounting bracket;

[0015] One end of the deflection drive device is rotatably connected to the deflection slider, and the deflection drive device can drive the mounting bracket to rotate in a vertical plane when it is extended or retracted.

[0016] Preferably, the mounting bracket includes a connecting frame, and the connecting frame extends toward one side of the deflection drive device;

[0017] A first pin seat is provided on the connecting frame, and the deflection driving device is tilted relative to the vertical direction. Two ends of the deflection driving device are rotatably connected to the deflection slider and the first pin seat respectively.

[0018] Preferably, one of the slide body and the outer frame is provided with a guide rail, and the other is provided with a guide wheel, the guide rail is vertically arranged, and the guide wheel is rollingly connected to the guide rail.

[0019] Preferably, an annular guide groove is provided on the guide wheel, and the annular guide groove is arranged around the center of the guide wheel, and the cross section of the annular guide groove is V-shaped.

[0020] Preferably, the rail end face grinding device further comprises a second slide, and rotating shafts are provided on opposite sides of the mounting bracket, and the rotating shafts located on both sides of the mounting bracket are on the same horizontal line, and the two rotating shafts are rotatably connected to the first slide and the second slide respectively;

[0021] The second slide is in rolling connection or sliding connection with the outer frame, and the bottom end of the second slide is provided with a second pin shaft seat for rotationally connecting with the lifting drive device.

[0022] Preferably, the grinding head unit includes a grinding head, a lifting frame and a rotation drive device, wherein:

[0023] The rotary drive device is fixed on the lifting frame and is drivingly connected to the grinding head to drive the grinding head to rotate;

[0024] The pressurizing drive device is drivingly connected to the lifting frame and is used to drive the lifting frame to vertically move up and down within the mounting bracket.

[0025] Preferably, the transverse driving device is arranged horizontally, and one of the fixed end and the telescopic end of the transverse driving device is hinged to the vehicle body frame, and the other is hinged to the outer frame;

[0026] The vehicle body frame is further provided with a horizontal guide shaft, and a sliding sleeve is fixed on the outer frame, and the sliding sleeve is slidably connected to the horizontal guide shaft.

[0027] Preferably, a hanging ear is fixed on at least one of the sliding sleeves, and the upper end of the lifting drive device is rotatably connected to the corresponding sliding sleeve.

[0028] The rail end face grinding device provided by the present invention has the following beneficial effects compared with the prior art: the transverse driving device can drive the outer frame to move transversely, thereby realizing the transverse movement of the grinding head unit, optimizing the contact point between the grinding stone and the rail, ensuring that the center area of ​​the grinding stone contacts the surface of the rail to be ground, and preventing the grinding stone from partially contacting the rail to form a cone; the vertically movable arrangement of the mounting bracket can reduce the transverse movement of the grinding head unit during large-angle grinding, and reduce the size of the pressurized driving device and its driving structure; during grinding work, the grinding stone is kept at a constant distance from the rail When the top surface distance is small, the grinding head unit can be directly driven down by the pressure drive device, and the grinding head unit contacts and grinds the end face of the rail. As the grinding progresses, the deflection drive device drives the mounting bracket to rotate in the vertical plane compared to the first slide, so that the grinding head unit can be rotated in the vertical plane, thereby ensuring that the grinding stone cutting surface of the grinding head unit contacts the position to be ground, accurately eliminating rail defects or repairing the profile, ensuring that the cross-sectional end face of the rail can be fully enveloped and ground, thereby improving the quality and efficiency of rail grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1This is a schematic diagram of the structure of the rail end face grinding device from one side perspective;

[0031] Figure 2 This is a schematic diagram of the structure of the rail end face grinding device from the other side;

[0032] Figure 3 Schematic diagram of the structure of the rail end face grinding device excluding the outer frame, transverse drive device, and lifting drive device;

[0033] Figure 4 This is a structural diagram of the rail end face grinding device from another side, excluding the outer frame, the traverse drive device, and the lifting drive device;

[0034] Figure 5 It is a structural diagram of the first slide;

[0035] Figure 6 is a structural diagram of the second slide;

[0036] Figure 7 This is a front view of the mounting bracket;

[0037] Figure 8 is a front view of the grinding head unit;

[0038] Figure 9 This is a schematic diagram of the matching structure of the grinding head unit and the mounting bracket;

[0039] Figure 10 It is a structural diagram of the deflection of the mounting bracket;

[0040] Figure 11 It is a structural diagram showing the synchronous descent of the mounting bracket, the first slide, the second slide, the grinding head unit and the deflection drive device;

[0041] Figure 12 a-12h is a schematic diagram of the state in which the grinding stone is grinding the entire surface of the rail end face.

[0042] In the figure, 1. outer frame; 11. vertical guide port; 12. sliding sleeve; 13. hanging ear; 2. mounting bracket; 21. connecting frame; 22. first pin seat; 23. rotating shaft; 3. first slide; 31. slide body; 32. deflection slider; 33. guide wheel; 331. annular guide groove; 4. transverse drive device; 5. deflection drive device; 6. lifting drive device; 7. grinding head unit; 71. grinding stone; 72. lifting frame; 73. rotation drive device; 8. second slide; 81. second pin seat; 82. bushing; 9. pressurizing drive device; 10. horizontal guide shaft. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be understood that the terms "center," "length," "width," "height," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and "side" and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0045] The embodiment of the present invention provides a rail end face grinding device, which improves the grinding efficiency of the rail end face.

[0046] The following combination Figures 1-12 The technical solution provided by the present invention is described in more detail.

[0047] See also Figures 1-12 As shown, the rail end face grinding device provided by the present invention includes an outer frame 1, a mounting bracket 2, a first slide 3, a transverse drive device 4, a deflection drive device 5, a pressurizing drive device 9 and a grinding head unit 7 for grinding the rail end face, wherein: the transverse drive device 4 is driven and connected to the outer frame 1 for driving the outer frame 1 to move back and forth horizontally; the mounting bracket 2 is arranged to be liftable in the vertical direction, and the first slide 3 is connected to the outer frame 1 for sliding or rolling; the two ends of the pressurizing drive device 9 are respectively rotatably connected to the mounting bracket 2 and the grinding head unit 7, and the pressurizing drive device 9 is used to drive the grinding head unit 7 to rise and fall vertically compared with the mounting bracket 2; the mounting bracket 2 is rotatably connected to the first slide 3, and the two ends of the deflection drive device 5 are respectively rotatably connected to the first slide 3 and the mounting bracket 2, and the deflection drive device 5 can drive the mounting bracket 2 to rotate in a vertical plane compared with the first slide 3.

[0048] The grinding head unit 7 includes a grinding stone 71 that can rotate. Figure 12 a-12h, the center of the grinding stone 71 contacts the position of the rail to be ground, thereby performing the grinding work.

[0049] The transverse drive device 4 can be a pneumatic cylinder, a hydraulic cylinder, or the like, and is mounted on a grinding carriage (not shown). When the transverse drive device 4 is extended or retracted, it drives the outer frame 1 to move, thereby causing the grinding head unit 7 mounted on the outer frame 1 to move laterally. Lateral movement refers to horizontal movement, enabling the grinding head unit 7 to move horizontally toward the inside or outside of the rail.

[0050] The pressurizing drive device 9 can be a pneumatic cylinder, hydraulic cylinder, electric cylinder, etc. in the prior art. When the pressurizing drive device 9 is extended or retracted, the grinding head unit 7 can be raised and lowered independently. The pressurizing drive device 9 drives the grinding head unit 7 to contact the end surface of the rail, ensuring a constant pressure between the grinding head unit 7 and the rail, thereby ensuring a constant power of the grinding head unit 7, improving the grinding quality, and ensuring the normal consumption of the grinding head unit 7.

[0051] The vertically adjustable mounting bracket 2 in this embodiment can reduce the lateral movement of the grinding head unit 7 during large-angle grinding, thereby reducing the size of the pressurized drive device 9 and its drive structure. For example, when the mounting bracket 2 is lowered, the lateral movement during full-surface grinding of the rail end face can be reduced, thereby reducing the size of the rail end face grinding device, facilitating operation, and improving grinding efficiency.

[0052] As an optional implementation, participate Figure 1-Figure 3 As shown, the rail end face grinding device also includes a lifting drive device 6, the two ends of which are hinged to the outer frame 1 and the mounting bracket 2 respectively. The lifting drive device 6 is used to drive the mounting bracket 2 and the first slide 3 to rise and fall synchronously in the vertical direction.

[0053] The lifting drive device 6 of this embodiment can be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, etc. When a pneumatic cylinder is used as an actuator, a locking cylinder can be used. This has the advantage of eliminating the need for a locking mechanism and reducing the size of the mechanism. When a hydraulic cylinder or an electric cylinder is used as an actuator, a locking mechanism can be added according to specific needs.

[0054] When the rail end face grinding device is installed on a retractable grinding trolley, and the trolley is in operation, and the distance between the grinding stone 71 and the rail top surface is less than 20 mm, the lifting drive device 6 can be cancelled and the grinding trolley can be used to realize the lifting of the mounting bracket 2.

[0055] When the rail end face grinding device of this embodiment is in operation, the mounting bracket 2, the first slide 3, and the deflection drive device 5 are first lowered synchronously by the lifting drive device 6, so as to facilitate the rapid contact between the grinding head unit 7 and the rail, and reduce the lateral displacement of the grinding head unit 7 during large-angle grinding. This is similar to the telescopic structure of a crane boom, reduces the size of the pressurizing drive device 9 and its drive structure, and is easy to use.

[0056] The rail end face grinding device of this embodiment achieves constant pressure between the grinding head unit 7 and the rail end face through the pressure driving device 9, ensuring constant power operation of the grinding head unit 7 and improving the operation quality of the device.

[0057] In the rail end face grinding device of this embodiment, the deflection drive device 5 can drive the mounting bracket 2 to rotate in a vertical plane relative to the first slide 3, such as Figure 10 As shown, it can be ensured that the center of the grinding stone 71 in the grinding head unit 7 is always in contact with the position to be ground on the end face of the rail, as shown in FIG. Figure 12 As shown, under the action of the transverse driving device 4, the grinding head unit 7 can achieve full surface envelope grinding of the rail end.

[0058] As an alternative embodiment, see Figure 3 、 Figure 5 As shown, the first slide 3 includes a slide body 31 and a deflection slider 32, wherein: the slide body 31 is hinged to the mounting bracket 2, the deflection slider 32 is fixed on the slide body 31, and the slide body 31 is located on the inner side of the outer frame 1, see Figure 2 A vertical guide opening 11 is provided on the outer frame 1, the deflection slider 32 extends out of the vertical guide opening 11, and rises and falls along the vertical guide opening 11 with the mounting bracket 2; one end of the deflection drive device 5 is rotatably connected to the deflection slider 32, and the deflection drive device 5 can drive the mounting bracket 2 to rotate in a vertical plane when it is extended and retracted.

[0059] The slide body 31 and the deflection slider 32 are an integrally formed structure. The deflection slider 32 and the slide body 31 are located on the inner and outer sides of the outer frame 1 respectively. The deflection slider 32 is convenient for installing the deflection drive device 5. For details, see Figure 1-Figure 3 As shown, when the lifting drive device 6 is working, it can drive the deflection slider 32 to move up and down along the vertical guide opening 11 on the outer frame 1 to prevent the first slide 3 and the outer frame 1 from interfering with each other.

[0060] As an alternative embodiment, see Figure 2 and Figure 3 As shown, the mounting bracket 2 includes a connecting frame 21, which extends toward one side of the deflection drive device 5; a first pin shaft seat 22 is provided on the connecting frame 21, and the deflection drive device 5 is tilted compared to the vertical direction, and the two ends of the deflection drive device 5 are respectively rotatably connected to the deflection slider 32 and the first pin shaft seat 22.

[0061] The deflection drive device 5 is tilted. When the deflection drive device 5 is extended or retracted, it can drive the mounting bracket 2 to rotate relative to the first slide 3. Figure 10 As shown, the grinding head unit 7 is deflected to ensure that the center of the grinding stone 71 contacts different positions of the rail end surface. Figure 10The grinding head unit 7 in the embodiment rotates toward the left, and of course can also rotate toward the right.

[0062] As an alternative embodiment, see Figure 3 As shown, a guide rail is provided on one of the slide body 31 and the outer frame 1 , and a guide wheel 33 is provided on the other. The guide rail is vertically provided, and the guide wheel 33 is rollingly connected to the guide rail.

[0063] See also Figure 3 As shown, in this embodiment, a guide wheel 33 is provided on the slide body 31 and is rotatably connected to the slide body 31. There are multiple guide wheels 33. A guide rail is fixed to the outer frame 1. The guide wheel 33 cooperates with the guide rail to achieve a rolling connection between the first slide 3 and the outer frame 1. When the lifting drive 6 drives the mounting bracket 2, the first slide 3, the second slide 8, and the deflection drive 5 to rise and fall synchronously, smoother movement is ensured.

[0064] The lifting drive device 6 and the deflection drive device 5 are located on opposite sides of the mounting bracket 2 to prevent interference between the various mechanisms.

[0065] As an alternative embodiment, see Figure 5 As shown, an annular guide groove 331 is provided on the guide wheel 33 . The annular guide groove 331 is provided around the center of the guide wheel 33 , and the cross section of the annular guide groove 331 is V-shaped.

[0066] Correspondingly, the cross-section of the guide rail on the outer frame 1 is adapted to the shape of the annular guide groove 331. In this embodiment, the guide wheel 33 with the above structure cooperates with the guide rail. The contact area between the V-shaped annular guide groove 331 and the guide rail is small. There is a gap between the guide wheel 33 and the top of the guide rail, so dust is not easy to accumulate, reducing the probability of movement jamming.

[0067] As an alternative embodiment, see Figure 4 、 Figure 6 As shown, the rail end face grinding device further includes a second slide 8, and a rotating shaft 23 is provided on both sides of the mounting bracket 2. Figure 7 The rotating shafts 23 located on both sides of the mounting bracket 2 are on the same horizontal line, and the two rotating shafts 23 are respectively rotatably connected to the first slide 3 and the second slide 8; the second slide 8 is rollingly connected or slidingly connected to the outer frame 1, and the bottom end of the second slide 8 is provided with a second pin shaft seat 81 for rotatably connecting with the lifting drive device 6.

[0068] In this embodiment, the first slide 3 and the second slide 8 are both provided with guide wheels 33 that cooperate with the outer frame 1. The second slide 8 and the first slide 3 are both provided with shaft sleeves 82. The rotating shafts 23 on both sides of the mounting bracket 2 are rotatably connected to the first slide 3 and the second slide 8 respectively through the shaft sleeves. The mounting bracket 2 rotates around the rotating shaft 23 in a vertical plane under the drive of the deflection drive device 5. Figure 11 As shown, the grinding stone 71 center contacts the rail end at different positions, see Figure 12 As shown, the local consumption of the grinding stone 71 can be prevented, and the grinding head unit 7 can grind the entire surface of the rail end under the action of the transverse driving device 4.

[0069] As an alternative embodiment, see Figure 8 、 Figure 9 As shown, the grinding head unit 7 includes a grinding head, a lifting frame 72 and a rotation drive device 73, wherein: the rotation drive device 73 is fixed on the lifting frame 72 and is connected to the grinding head driving device for driving the grinding head to rotate; the pressurizing drive device 9 is connected to the lifting frame 72 driving device for driving the lifting frame 72 to vertically lift and lower the lifting frame 72 in the mounting bracket 2.

[0070] The rotation driving device 73 may be a motor, and the rotation driving device 73 drives the grinding stone 71 to rotate, thereby grinding the rail surface through the rotation of the grinding stone 71 .

[0071] When the pressurizing drive device 9 is extended or retracted, the lifting frame 72 and the mounting bracket 2 are lifted vertically relative to each other.

[0072] As an alternative embodiment, see Figure 1 and Figure 2 As shown, the transverse driving device 4 is arranged horizontally, and one of the fixed end and the telescopic end of the transverse driving device 4 is hinged to the vehicle body frame, and the other is hinged to the outer frame 1; a horizontal guide shaft 10 is also provided on the vehicle body frame, and a sliding sleeve 12 is fixed on the outer frame 1, and the sliding sleeve 12 is slidably connected to the horizontal guide shaft 10.

[0073] See also Figure 1 and Figure 2 As shown, in this embodiment, the telescopic end of the transverse drive device 4 is hinged to the outer frame 1, and the other end of the transverse drive device 4 is hinged to the grinding trolley. The grinding trolley is omitted in the figure. The horizontal guide shaft 10 is fixed on the grinding trolley. The horizontal guide shaft 10 is slidably connected to the sliding sleeve 12 on the outer frame 1 to provide guidance for the outer frame 1, ensuring the horizontal reciprocating movement of the outer frame 1 and the structure thereon.

[0074] As an alternative embodiment, see Figure 1 As shown, a hanging ear 13 is fixed on at least one sliding sleeve 12 , and the upper end of the lifting drive device 6 is rotatably connected to the corresponding sliding sleeve 12 .

[0075] The above structure facilitates the installation of the lifting drive device 6. The lifting drive device 6 extends or retracts to realize the overall lifting of the mounting bracket 2, the second slide 8, the first slide 3, the deflection drive device 5, and the grinding head unit 7. Figure 11 shown.

[0076] The rail end grinding device of this embodiment can repair rail defects and features retraction (lifting and lowering) of the grinding head unit 7, power control (pressurization), and angular deflection (performing envelope grinding of the rail end face). To ensure proper wear of the grinding stone 71 (especially when the grinding stone 71 is small in diameter) and precise grinding, the grinding head also requires a lateral movement function.

[0077] During operation, the entire device is first positioned under the action of the grinding carriage. The lifting drive 6 drives the mounting bracket 2, the second slide 8, the first slide 3, the deflection drive 5, and the grinding head unit 7 to descend as a whole. The pressure drive 9 drives the lifting frame 72 to descend, and the grinding stone 71 contacts the end face of the rail. The grinding stone 71 rotates to grind the rail surface. The traverse drive 4 drives the entire device to traverse, and the deflection drive 5 drives the mounting bracket 2 and the grinding head unit 7 to deflect. When the grinding stone 71 grinds different positions on the rail surface, see Figure 12 As shown, the center of the grinding head can be brought into contact with the target position for grinding.

[0078] In the description of this specification, specific features, structures, or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0079] In the description of this specification, the reference terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0080] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A rail end face grinding device, characterized in that: The system comprises an outer frame, a mounting bracket, a first slide, a traverse drive device, a deflection drive device, a pressure drive device and a grinding head unit for grinding the end face of the rail, wherein: The transverse driving device is connected to the outer frame for driving the outer frame to move horizontally back and forth; the mounting bracket is arranged to be liftable in the vertical direction, and the first slide is connected to the outer frame in a sliding or rolling manner; The two ends of the pressurizing drive device are rotatably connected to the mounting bracket and the grinding head unit respectively, and the pressurizing drive device is used to drive the grinding head unit to vertically rise and fall relative to the mounting bracket; The mounting bracket is rotatably connected to the first slide, and both ends of the deflection drive device are hinged to the first slide and the mounting bracket respectively, and the deflection drive device can drive the mounting bracket to rotate in a vertical plane relative to the first slide; The first slide comprises a slide body and a deflection slider, wherein: the slide body is rotatably connected to the mounting bracket, the deflection slider is fixed to the slide body, the slide body is located on the inner side of the outer frame, the outer frame is provided with a vertical guide opening, the deflection slider extends out of the vertical guide opening and rises and falls along the vertical guide opening along with the mounting bracket; One end of the deflection drive device is rotatably connected to the deflection slider, and the deflection drive device can drive the mounting bracket to rotate in a vertical plane when it is extended or retracted; The mounting bracket includes a connecting frame, and the connecting frame extends toward one side of the deflection drive device; The connecting frame is provided with a first pin seat, the deflection drive device is tilted relative to the vertical direction, and both ends of the deflection drive device are rotatably connected to the deflection slider and the first pin seat respectively; A guide rail is provided on one of the slide body and the outer frame, and a guide wheel is provided on the other. The guide rail is vertically arranged, and the guide wheel is rollingly connected to the guide rail.

2. The rail end face grinding device according to claim 1, characterized in that: The rail end face grinding device further comprises a lifting drive device, both ends of which are hinged to the outer frame and the mounting bracket respectively, and the lifting drive device is used to drive the mounting bracket and the first slide to rise and fall synchronously in the vertical direction.

3. The rail end face grinding device according to claim 1, characterized in that: The guide wheel is provided with an annular guide groove, which is arranged around the center of the guide wheel, and the cross section of the annular guide groove is V-shaped.

4. The rail end face grinding device according to claim 2, characterized in that: The rail end face grinding device further includes a second slide, and rotating shafts are provided on opposite sides of the mounting bracket, and the rotating shafts located on both sides of the mounting bracket are on the same horizontal line, and the two rotating shafts are rotatably connected to the first slide and the second slide respectively; The second slide is in rolling connection or sliding connection with the outer frame, and the bottom end of the second slide is provided with a second pin shaft seat for rotationally connecting with the lifting drive device.

5. The rail end face grinding device according to claim 2, characterized in that: The grinding head unit includes a grinding head, a lifting frame and a rotation drive device, wherein: The rotary drive device is fixed on the lifting frame and is drivingly connected to the grinding head to drive the grinding head to rotate; The pressurizing drive device is drivingly connected to the lifting frame and is used to drive the lifting frame to vertically move up and down within the mounting bracket.

6. The rail end face grinding device according to claim 2, characterized in that: The transverse driving device is arranged horizontally, and one of the fixed end and the telescopic end of the transverse driving device is hinged to the vehicle body frame, and the other is hinged to the outer frame; The vehicle body frame is further provided with a horizontal guide shaft, and a sliding sleeve is fixed on the outer frame, and the sliding sleeve is slidably connected to the horizontal guide shaft.

7. The rail end face grinding device according to claim 6, characterized in that: A hanging ear is fixed on at least one of the sliding sleeves, and the upper end of the lifting drive device is rotatably connected to the corresponding sliding sleeve.

Images