Peripheral end face combined grinding trolley, turnout grinding wagon and turnout grinding wagon group

Abstract

The utility model discloses a peripheral face and end face combined grinding trolley, a turnout grinding wagon and a turnout grinding wagon set, and relates to the technical field of turnout steel rail grinding, the peripheral face and end face combined grinding trolley comprises a peripheral face grinding trolley and an end face grinding trolley which are connected, and a plurality of end face grinding wheels are arranged at the bottom of the end face grinding trolley; the side, close to the end face grinding trolley, of the bottom of the circumferential face grinding trolley is provided with a plurality of circumferential face grinding wheels, and the side, away from the end face grinding trolley, of the bottom of the circumferential face grinding trolley is provided with a plurality of circumferential face polishing wheels. The end face grinding wheel and the circumferential face grinding wheel are used for eliminating surface damage of the steel rail and correcting the rail head profile. The circumferential surface polishing wheel is used for steel rail surface polishing. According to the turnout grinding device, turnout subarea operation is achieved through the three grinding wheels, turnout grinding blind areas are reduced, and smoothness of ground steel rails is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turnout rail grinding, and specifically relates to a grinding trolley with combined peripheral and end faces, a turnout grinding vehicle and a turnout grinding vehicle group. Background Art

[0002] Due to the special structure of the turnout, relying solely on the existing grinding method with the end face of the grinding wheel, there are large grinding blind spots in the switch rail, frog rail and other parts due to limited operation. Therefore, by combining the peripheral grinding of the grinding wheel with the end face grinding, the advantage that the peripheral grinding of the grinding wheel has less restricted area in the switch rail and frog rail of the turnout can be utilized to further reduce the grinding blind spots of the turnout. However, due to different grinding mechanisms between the peripheral grinding and the end face grinding of the grinding wheel, there are problems such as different grinding speeds, different rail surface qualities after grinding, difficult matching of the simultaneous combined grinding speeds of the peripheral and end faces of the grinding wheel, and difficult smooth transition of the rail surface quality after grinding. Content of the Utility Model

[0003] Aiming at the defects existing in the prior art, the purpose of the utility model is to provide a grinding trolley with combined peripheral and end faces, a turnout grinding vehicle and a turnout grinding vehicle group. The special structural parts such as the switch rail and frog rail of the turnout are ground by the peripheral grinding wheel, the non-special structural rails of the turnout and the straight sections before and after the turnout area are ground by the end face grinding wheel, and then the surface of the rail ground by the peripheral grinding wheel and the end face grinding wheel is polished and smoothly connected by the peripheral polishing wheel. The three grinding wheels are structurally separated and independently controlled according to the two grinding methods of the peripheral and end faces, so as to realize partitioned and separate operations, avoid the difficult matching of the grinding speeds of the peripheral and end faces of the grinding wheel, and at the same time, through the grinding of the peripheral polishing wheel, the rail surface quality in the connection area is gently transitioned, not only reducing the grinding blind spots of the turnout, but also improving the smoothness of the rail after grinding in the turnout area.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a grinding trolley with combined peripheral and end faces, including a peripheral grinding trolley and an end face grinding trolley connected to each other. A plurality of end face grinding wheels are arranged at the bottom of the end face grinding trolley; a plurality of peripheral grinding wheels are arranged on one side of the bottom of the peripheral grinding trolley close to the end face grinding trolley, and a plurality of peripheral polishing wheels are arranged on the side of the bottom of the peripheral grinding trolley far from the end face grinding trolley; the end face grinding wheels and the peripheral grinding wheels are used to eliminate the damage on the rail surface and correct the rail head profile; the peripheral polishing wheels are used for polishing the rail surface.

[0005] The further improvement lies in that: the end face grinding wheels and the peripheral grinding wheels are grinding wheels, and the peripheral polishing wheels are thousand-leaf wheels.

[0006] The further improvement lies in that: a plurality of first brackets for installing the peripheral grinding wheels / peripheral polishing wheels are arranged at the bottom of the peripheral grinding trolley, and a first motor for driving the peripheral grinding wheels / peripheral polishing wheels is arranged on the first brackets.

[0007] A further improvement lies in that: the first brackets correspond one-to-one to the circumferential grinding wheels / circumferential polishing wheels, and a first deflection mechanism is arranged beside the first brackets. The first deflection mechanism is used to drive the first brackets to turn over, thereby adjusting the angle between the circumferential grinding wheels / circumferential polishing wheels and the rail.

[0008] A further improvement lies in that: a plurality of second brackets for installing end face grinding wheels are arranged at the bottom of the end face grinding trolley, and a second motor for driving the end face grinding wheels is arranged on the second brackets.

[0009] A further improvement lies in that: the second brackets correspond one-to-one to the end face grinding wheels, and a second deflection mechanism is arranged beside the second brackets. The second deflection mechanism is used to drive the second brackets to turn over, thereby adjusting the angle between the end face grinding wheels and the rail.

[0010] A further improvement lies in that: the circumferential grinding trolley and the end face grinding trolley are connected by a hinge device, and traveling wheels are arranged at the bottoms of both the circumferential grinding trolley and the end face grinding trolley.

[0011] A further improvement lies in that: a drawbar mechanism is arranged on both the circumferential grinding trolley and the end face grinding trolley.

[0012] The present utility model also provides a turnout grinding vehicle, which includes a vehicle body. Front bogies and rear bogies are respectively arranged at both ends of the bottom of the vehicle body. The circumferential and end face combined grinding trolley as described above is also arranged at the bottom of the vehicle body; a close-coupled coupler is arranged at the tail end of the vehicle body.

[0013] The present utility model also provides a turnout grinding vehicle set, which is composed of two turnout grinding vehicles as described above connected by a close-coupled coupler.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, the circumferential and end face combined grinding trolley adopts a combination of circumferential grinding wheels, end face grinding wheels and circumferential polishing wheels. The circumferential grinding is designed as an independent circumferential grinding trolley, and the end face grinding is designed as an independent end face grinding trolley, which are connected together by a hinge device. The structure design is reasonable, the function positioning is clear. At the same time, the respective advantages are fully utilized to make up for the respective disadvantages and deficiencies, enhancing the applicability and versatility of turnout grinding.

[0016] 2. In the present utility model, the turnout grinding vehicle uses 16 end face grinding wheels to grind the non-structurally special rails of the turnout, and then uses 8 circumferential grinding wheels to grind the structurally special rails such as the switch rail, the stock rail and the guard rail where the operation of the end face grinding wheels is restricted. The operation restricted area of the existing turnout grinding vehicle with only end face grinding wheels is reduced. At the same time, a circumferential polishing wheel is used to polish the connecting section of the rails between the grinding areas of the circumferential grinding wheels and the end face grinding wheels, improving the smoothness of the rails after grinding.

[0017] In this utility model, peripheral surface polishing wheels are provided at both ends of the turnout grinding train set, so that no matter which direction the turnout grinding train set operates along the rail, the peripheral surface polishing wheels can always perform final polishing on the polished rail, thereby reducing the number of operation passes and improving efficiency. Description of the Drawings

[0018] Figure 1 It is a three-dimensional view of the peripheral end surface combined grinding trolley in the embodiment of this utility model;

[0019] Figure 2 It is a front view of the peripheral end surface combined grinding trolley in the embodiment of this utility model;

[0020] Figure 3 It is a top view of the peripheral end surface combined grinding trolley in the embodiment of this utility model;

[0021] Figure 4 It is a structural schematic diagram of the peripheral surface polishing wheel in the embodiment of this utility model;

[0022] Figure 5 It is a working schematic diagram of the peripheral surface polishing wheel / peripheral surface grinding wheel in the embodiment of this utility model Figure 1 ;

[0023] Figure 6 It is a working schematic diagram of the peripheral surface polishing wheel / peripheral surface grinding wheel in the embodiment of this utility model Figure 2 ;

[0024] Figure 7 It is a working schematic diagram of the end surface grinding wheel in the embodiment of this utility model Figure 1 ;

[0025] Figure 8 It is a working schematic diagram of the end surface grinding wheel in the embodiment of this utility model Figure 2 ;

[0026] Figure 9 It is a structural schematic diagram of the turnout grinding vehicle in the embodiment of this utility model;

[0027] Figure 10 It is a structural schematic diagram of the turnout grinding train set in the embodiment of this utility model.

[0028] Reference Signs:

[0029] 1 - Peripheral surface grinding trolley; 11 - Peripheral surface polishing wheel; 12 - Peripheral surface grinding wheel; 13 - First bracket; 14 - First motor; 15 - First deflection mechanism; 2 - End face grinding trolley; 21 - End face grinding wheel; 22 - Second bracket; 23 - Second motor; 24 - Second deflection mechanism; 3 - Hinge device; 4 - Traveling wheel; 5 - Tie rod mechanism; 6 - Car body; 61 - Front bogie; 62 - Rear bogie; 63 - Close-coupled coupler. Detailed implementation mode

[0030] The embodiments of the present invention will be described in detail below. The illustrated embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0031] In the description of the present invention, it should be noted that for the orientation terms, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of describing the present invention 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, and should not be construed as limiting the specific protection scope of the present invention.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of 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 invention, the meanings of "several" and "a number of" are two or more, unless otherwise specifically defined.

[0033] The following further describes the specific implementation modes of the present invention in conjunction with the accompanying drawings of the specification, making the technical solutions and their beneficial effects of the present invention clearer and more definite. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] See Figures 1 to 3As shown in the figure, an embodiment of the utility model provides a circumferential and end face combined grinding trolley, which includes a circumferential surface grinding trolley 1 and an end face grinding trolley 2 connected to each other. A plurality of end face grinding wheels 21 are arranged at the bottom of the end face grinding trolley 2; a plurality of circumferential surface grinding wheels 12 are arranged on one side of the bottom of the circumferential surface grinding trolley 1 close to the end face grinding trolley 2, and a plurality of circumferential surface polishing wheels 11 are arranged on the other side of the bottom of the circumferential surface grinding trolley 1 away from the end face grinding trolley 2; the end face grinding wheels 21 and the circumferential surface grinding wheels 12 are used to eliminate the surface damage of the rail and correct the profile of the rail head; the circumferential surface polishing wheels 11 are used for polishing the surface of the rail. Specifically, the end face grinding wheels 21 and the circumferential surface grinding wheels 12 are grinding wheels, and the circumferential surface polishing wheels 11 are thousand-leaf wheels. The circumferential surface grinding trolley 1 and the end face grinding trolley 2 are connected by a hinge device 3, and traveling wheels 4 are arranged at the bottoms of both the circumferential surface grinding trolley 1 and the end face grinding trolley 2. In this embodiment, the circumferential and end face combined grinding trolley is provided with a total of 6 traveling wheels, which are symmetrically distributed left and right. One pair of traveling wheels is located at one end of the circumferential surface grinding trolley far from the middle hinge device, and another pair of traveling wheels is arranged at both ends of the end face grinding trolley respectively. The traveling wheels fall on the rail during operation, playing a role in supporting and guiding the circumferential and end face combined grinding trolley. Both the circumferential surface grinding trolley 1 and the end face grinding trolley 2 are provided with a pull rod mechanism 5. The circumferential and end face combined grinding trolley runs bidirectionally along the rail under the traction of the turnout grinding vehicle through the pull rod mechanism, and the running speed is v during operation.

[0035] See Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown in the figure, a plurality of first brackets 13 for installing the circumferential surface grinding wheels 12 / circumferential surface polishing wheels 11 are arranged at the bottom of the circumferential surface grinding trolley 1, and a first motor 14 for driving the circumferential surface grinding wheels 12 / circumferential surface polishing wheels 11 is arranged on the first bracket 13. Specifically, the first brackets 13 correspond to the circumferential surface grinding wheels 12 / circumferential surface polishing wheels 11 one by one, and a first deflection mechanism 15 is arranged beside the first bracket 13. The first deflection mechanism 15 is used to drive the first bracket 13 to flip, thereby adjusting the included angle between the circumferential surface grinding wheels 12 / circumferential surface polishing wheels 11 and the rail. In this embodiment, the circumferential surface grinding trolley includes 4 circumferential surface polishing wheels and 4 circumferential surface grinding wheels, which are symmetrically distributed left and right. The circumferential surface polishing wheels are all located at one end far from the middle hinge device, and the circumferential surface grinding wheels are all located at one end close to the middle hinge device. The circumferential surface grinding wheels 12 / circumferential surface polishing wheels 11 can be at a set cutting angle α (the included angle between the central axis of the grinding wheel and the horizontal plane of the rail) and a deflection angle β (the included angle between the rotating surface of the grinding wheel and the longitudinal section of the rail), and run along the rail at the operation speed v under the drive of the turnout grinding vehicle. At the same time, they rotate at a speed n under the drive of the motor, and use the circumferential surface of the grinding wheel to cut the rail under the action of the pressure F to realize the grinding of the rail surface.

[0036] See Figure 2 , Figure 7 and Figure 8As shown in the figure, several second brackets 22 for installing the end face grinding wheels 21 are provided at the bottom of the end face grinding trolley 2, and a second motor 23 for driving the end face grinding wheels 21 is provided on the second brackets 22. Specifically, the second brackets 22 correspond to the end face grinding wheels 21 one by one, and a second deflection mechanism 24 is provided beside the second brackets 22. The second deflection mechanism 24 is used to drive the second brackets 22 to flip, so as to adjust the angle between the end face grinding wheels 21 and the rail. In this embodiment, the end face grinding trolley includes 8 end face grinding wheels, which are symmetrically distributed left and right. The end face grinding wheels 21 can rotate at a set grinding angle α and a speed n, and run along the rail at an operating speed v under the drive of the turnout grinding vehicle. At the same time, they rotate at a speed n under the drive of the motor, and use the end face of the grinding wheel to cut the rail under the action of the pressure F to realize the grinding of the rail surface.

[0037] See Figure 9 As shown in the figure, an embodiment of the present invention further provides a turnout grinding vehicle, which includes a vehicle body 6. Front bogies 61 and rear bogies 62 are respectively provided at both ends of the bottom of the vehicle body 6. The bottom of the vehicle body 6 is also provided with a circumferential and end face combined grinding trolley as described above; a close-coupled coupler 63 is provided at the tail end of the vehicle body 6. When the circumferential and end face combined grinding trolley is installed on the turnout grinding vehicle, the circumferential surface grinding trolley is at one end close to the rear bogie, and the end face grinding trolley is at one end close to the front bogie. This makes the circumferential surface polishing wheels distributed at both ends of the turnout grinding vehicle group, 4 at each end; the end face grinding wheels are distributed in the middle of the turnout grinding vehicle group, a total of 16. Then the total number of circumferential surface polishing wheels, circumferential surface grinding wheels and end face grinding wheels included in the turnout grinding vehicle group is 32.

[0038] See Figure 10 As shown in the figure, an embodiment of the present invention further provides a turnout grinding vehicle group, which is characterized in that: the turnout grinding vehicle group is composed of two turnout grinding vehicles as described above connected by a close-coupled coupler 63. The turnout grinding vehicle group composed of two identical turnout grinding vehicles makes the circumferential surface polishing wheels distributed at both ends of the vehicle group and the end face grinding wheels located in the middle. When grinding the turnout, first use the end face to grind the rail in the non-structurally special area of the turnout, then use the circumferential surface grinding wheels to grind the rail in the structurally special area of the turnout, and finally use the circumferential surface polishing wheels to grind the connecting section of the rail in the grinding areas of the circumferential surface grinding wheels and the end face grinding wheels, giving full play to their respective advantages, not only reducing the turnout grinding blind area, but also improving the smoothness of the rail after grinding.

[0039] The working principle of the present invention is:

[0040] When the turnout grinding train is grinding the turnout and the straight rails before and after the turnout area, it first uses all or part of the end face grinding wheels to grind the rails in the non-structurally special areas except for the switch points, stock rails and guard rails. Each end face grinding wheel rotates at a fixed speed n at high speed. The grinding angle α is set according to the part of the rail head that needs to be ground, and the range is usually between 60° on the inner side of the rail and 15° on the outer side. At the same time, an appropriate pressure F is set according to the grinding depth requirement, and it usually runs along the rail at a grinding speed v = 6∽7 km / h. The rail is ground by the end plane of the end face grinding wheel to eliminate the contact rolling contact fatigue damage, wear, burr and poor light band on the rail surface, and then the rail head profile is further corrected. Generally, it is necessary to grind back and forth multiple times in the operation section. The grinding angle α and pressure F of each end face grinding wheel for each pass can be adjusted on the control system interface of the turnout grinding train according to the need.

[0041] After the end face grinding wheel finishes the operation, it then uses all or part of the circumferential surface grinding wheels to grind the rails in the switch points, stock rails and guard rail sections. When each circumferential surface grinding wheel works, it also rotates at a fixed speed n at high speed. The cutting angle α is usually between 10 and 15°, and the grinding deflection angle β is set according to the part of the rail head that needs to be ground. At the same time, an appropriate pressure F is set according to the grinding depth requirement, and it runs along the rail at a grinding speed v = 1∽3 km / h. The rail is ground by the outer circumferential surface of the circumferential surface grinding wheel to eliminate the damage on the rail surface. When the circumferential surface grinding wheel grinds back and forth multiple times, the grinding cutting angle α and grinding deflection angle β of each circumferential surface grinding wheel are usually fixed to keep the contact part between the circumferential surface grinding wheel and the rail head fixed.

[0042] Finally, it uses all or part of the circumferential surface polishing wheels to polish and grind the entire turnout and the straight rails before and after the turnout area, or only the rails that have not been ground by both the circumferential surface grinding wheels and the end face grinding wheels, such as the tips of the switch points and stock rails, as well as the connecting section of the grinding areas of the end face grinding wheels and the circumferential surface grinding wheels. When each circumferential surface polishing wheel works, it also rotates at a fixed speed n at high speed. The cutting angle α is usually between 0 and 5°, and the grinding deflection angle β = 0°. At the same time, a smaller pressure F is set according to the grinding depth requirement, and it runs along the rail at a grinding speed v = 1∽3 km / h. Since the thickness of the circumferential surface polishing wheel reaches 60 mm, the outer circumferential surface of the circumferential surface polishing wheel can cover the entire working surface of the rail head, polish and grind the surface of the rail head, improve the surface finish of the rail after grinding, play a preventive role in the surface of the unground rail, and at the same time make the grinding quality of the connecting section between the circumferential surface grinding wheel and the end face grinding wheel transition smoothly, improving the smoothness of the rail after grinding.

[0043] In the present utility model, the turnout grinding train adopts a combination of circumferential grinding wheels, end face grinding wheels and circumferential polishing wheels. Through these three types of grinding wheels, sectional operation on the turnout is achieved. The end face grinding can eliminate various damages such as non-structural special rail fatigue cracks, wear, and burrs, and has strong operation adaptability when correcting the profile. The circumferential grinding has fewer restricted areas for special rails in the structure. The circumferential polishing improves the smooth transition of the circumferential-end grinding quality, bringing into play their respective technical advantages, and avoiding the disadvantage of the mismatch between the circumferential and end face grinding speeds, reducing the grinding blind area of the turnout and improving the smoothness of the rail after grinding. Moreover, the circumferential polishing wheels are located at both ends of the turnout grinding train. When the turnout grinding train operates in any direction along the rail, the circumferential polishing wheels can be used to finally polish the surface of the rail after grinding by the circumferential grinding wheels and end face grinding wheels, enabling the circumferential polishing wheels and the circumferential grinding wheels or end face grinding wheels to complete the operation simultaneously in one pass.

[0044] In the description of the specification, the description with reference to terms such as "an embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. The schematic representation of the above terms in this specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0045] Through the description of the above structure and principle, those skilled in the art should understand that the present utility model is not limited to the above specific implementation manners. The improvements and substitutions using the well-known technologies in the art based on the present utility model fall within the protection scope of the present utility model, which should be defined by each claim.

Claims

1. A circumferential and end face combined grinding trolley, comprising a circumferential surface grinding trolley (1) and an end face grinding trolley (2) connected to each other, characterized in that: A plurality of end face grinding wheels (21) are provided at the bottom of the end face grinding trolley (2); a plurality of circumferential face grinding wheels (12) are provided on one side of the bottom of the circumferential face grinding trolley (1) close to the end face grinding trolley (2), and a plurality of circumferential face polishing wheels (11) are provided on the other side of the bottom of the circumferential face grinding trolley (1) away from the end face grinding trolley (2); the end face grinding wheels (21) and the circumferential face grinding wheels (12) are used to eliminate surface damage of the rail and correct the profile of the rail head; the circumferential face polishing wheels (11) are used for polishing the surface of the rail.

2. The circumferential end face combined grinding trolley according to claim 1, characterized in that: The end face grinding wheels (21) and the circumferential face grinding wheels (12) are grinding wheels, and the circumferential face polishing wheels (11) are thousand-leaf wheels.

3. The circumferential end surface combined grinding trolley according to claim 1, characterized in that: A plurality of first brackets (13) for mounting the circumferential face grinding wheels (12) / circumferential face polishing wheels (11) are provided at the bottom of the circumferential face grinding trolley (1), and a first motor (14) for driving the circumferential face grinding wheels (12) / circumferential face polishing wheels (11) is provided on the first brackets (13).

4. The circumferential end face combined grinding trolley according to claim 3, wherein: The first brackets (13) correspond to the circumferential face grinding wheels (12) / circumferential face polishing wheels (11) one by one, and a first deflection mechanism (15) is provided beside the first brackets (13), and the first deflection mechanism (15) is used to drive the first brackets (13) to turn over, so as to adjust the included angle between the circumferential face grinding wheels (12) / circumferential face polishing wheels (11) and the rail.

5. The circumferential end surface combined grinding trolley according to claim 1, wherein: A plurality of second brackets (22) for mounting the end face grinding wheels (21) are provided at the bottom of the end face grinding trolley (2), and a second motor (23) for driving the end face grinding wheels (21) is provided on the second brackets (22).

6. The circumferential end face combined grinding trolley according to claim 5, characterized in that: The second brackets (22) correspond to the end face grinding wheels (21) one by one, and a second deflection mechanism (24) is provided beside the second brackets (22), and the second deflection mechanism (24) is used to drive the second brackets (22) to turn over, so as to adjust the included angle between the end face grinding wheels (21) and the rail.

7. The circumferential end face combined grinding trolley according to claim 1, characterized in that: The circumferential face grinding trolley (1) and the end face grinding trolley (2) are connected by a hinge device (3), and traveling wheels (4) are provided at the bottoms of both the circumferential face grinding trolley (1) and the end face grinding trolley (2).

8. The circumferential end face combined grinding trolley according to claim 1, wherein: Both the circumferential face grinding trolley (1) and the end face grinding trolley (2) are provided with a pull rod mechanism (5).

9. A turnout grinding vehicle, comprising a vehicle body (6), wherein front bogies (61) and rear bogies (62) are respectively arranged at two ends of the bottom of the vehicle body (6), and it is characterized in that: A circumferential and end face combined grinding trolley as described in any one of claims 1-8 is further provided at the bottom of the vehicle body (6); a close-coupled coupler (63) is provided at the tail end of the vehicle body (6).

10. A turnout grinding train set, characterized in that: The turnout grinding train is composed of two turnout grinding vehicles as described in claim 9 connected by a close-coupled coupler (63).

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