Grinding wheel for groove type rail grinding device and groove type rail grinding device

Abstract

The utility model discloses a grinding wheel for a groove type rail grinding device. The grinding wheel is installed on the groove type rail grinding device and used for grinding a groove type rail (001). The grinding wheel is characterized in that the edge of the rim (1) of the grinding wheel (002) is provided with an inclined chamfer, and the axial width a of the inclined chamfer is 15-20 mm; and the included angle between the inclined surface and the end surface of the inclined chamfer is 8-10 degrees. When the wheel rim tread is applied to a grooved rail grinding device, the appearance of the wheel rim tread of a wheel can keep a vehicle running along the grooved rail, and the wheel is prevented from derailing. The gap between the rim of the wheel and the groove-shaped rail is polished, it is guaranteed that the polished wheel cannot interfere with the groove-shaped rail, abrasion of the rim and the groove-shaped rail can be reduced, and the vehicle can safely pass through curves and turnouts. The weight is light, the installation and the use are convenient and labor-saving, the working efficiency is improved, and the working time is shortened.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical technology, specifically relates to the technical field of mechanical tools, and in particular relates to a grinding wheel for a groove rail grinding device. Background Art

[0002] Rail grinding was first developed on heavy-load railways for the purpose of extending the service life of rails. With the development and promotion of rail grinding technology, more and more high-speed railways, heavy-load railways and urban rail transit have adopted this technology to extend the life of rails. At the same time, the form of rail grinding has also developed from the initial repair grinding to maintenance grinding to the now particularly popular "frequent, fast, and light" preventive grinding.

[0003] like Figure 1 As shown in the figure, the steel rails of trams are different from standard railway rails, and the grooved rails are called grooved rails. With the long-term and frequent operation of trams, the grooved rail lines have defects such as wave wear and damage, which affect the safety and comfort of operation. The grooved rail grinding device can repair and grind the grooved rails, but directly using the "standard rail grinding wheels" that run on standard rails on the grooved rail grinding device cannot ensure the appropriate gap between the wheel flange and the rail, and will interfere with the "groove rail" to form an "interference area". It causes serious wear on the wheel flange and the rail, and there is a safety hazard of derailment when passing curves and switches. At the same time, the "standard rail grinding wheels" are heavy and inconvenient to install and use. Summary of the invention

[0004] The utility model aims to provide a grinding wheel for a groove rail grinding device and a groove rail grinding device, wherein the wheel rim tread shape can keep the vehicle running along the groove rail and prevent the wheel from derailing. The gap between the grinding wheel rim and the groove rail is ensured to ensure that the grinding wheel does not interfere with the groove rail, which can reduce the wear of the wheel rim and the groove rail, and is conducive to the safe passage of the vehicle through curves and switches. The weight is small, the installation is convenient, the use is labor-saving, and the work efficiency is improved, and the working time is shortened.

[0005] The technical solution provided by the utility model is as follows:

[0006] A grinding wheel for a grooved rail grinding device is installed on the grooved rail grinding device and is used for grinding the grooved rail 001. The edge of the wheel rim 1 of the grinding wheel 002 is provided with a chamfer, and the axial width of the chamfer a is 15-20 mm; the angle between the inclined surface of the chamfer and the end surface is 8-10 degrees.

[0007] The grinding wheel 002 is provided with weight-reducing annular grooves 2 at both end surfaces of the wheel spoke.

[0008] The bottom of the weight-reducing annular groove 2 is provided with a plurality of weight-reducing through holes 3 evenly distributed along the circumferential direction.

[0009] The diameter of the grinding wheel 002 is less than or equal to Φ554 mm; the wheel thickness is 130 mm, the diameter of the center hole 4 is Φ105 mm, and a keyway 5 is provided in the center hole 4.

[0010] A groove rail grinding device comprises a frame 301, a driving wheel 302, a driven wheel 303 and a driving mechanism; a pair of driving wheels 302 and a pair of driven wheels 303 are respectively installed at the front and rear of the frame 301; the pair of wheels are installed symmetrically on the left and right; the driving mechanism drives the driving wheel 302 to drive the groove rail grinding device to move along the groove rail to grind the groove rail;

[0011] The driving wheel 302 and the driven wheel 303 are polished wheels using the above-mentioned groove rail polishing device.

[0012] It can be seen from the technical solution provided by the utility model described above that the embodiment of the utility model provides a grinding wheel and a grooved rail grinding device for a grooved rail grinding device, and the wheel rim tread shape can keep the vehicle running along the grooved rail and prevent the wheel from derailing. The gap between the grinding wheel rim and the grooved rail is ensured to ensure that the grinding wheel will not interfere with the grooved rail, which can reduce the wear of the wheel rim and the grooved rail, and is conducive to the safe passage of the vehicle through curves and switches. It is light in weight, easy to install and use, labor-saving, and improves work efficiency and shortens working time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of a grinding wheel and a grooved rail in the prior art;

[0015] Figure 2 A schematic diagram of the front view of a grinding wheel for a grooved rail grinding device according to the first embodiment of the utility model;

[0016] Figure 3 A schematic diagram of the right side structure of a grinding wheel for a grooved rail grinding device provided in Embodiment 1 of the utility model;

[0017] Figure 4 A schematic diagram of the structure of the groove rail grinding device provided in the second embodiment of the utility model Figure 1 ;

[0018] Figure 5 A schematic diagram of the structure of the groove rail grinding device provided in the second embodiment of the utility model Figure 2 . DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0020] First, the terms that may be used in this article are explained as follows:

[0021] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0022] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0023] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0024] The term "parts by mass" refers to the mass ratio relationship between multiple components. For example, if it is described that component X is x parts by mass and component Y is y parts by mass, then the mass ratio of component X to component Y is x:y. 1 part by mass can represent any mass, for example, 1 part by mass can be represented as 1 kg or 3.1415926 kg. The sum of the parts by mass of all components is not necessarily 100 parts, but can be greater than 100 parts, less than 100 parts or equal to 100 parts. Unless otherwise specified, the parts, proportions and percentages described herein are all measured by mass.

[0025] Unless otherwise specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0026] When concentration, temperature, pressure, size or other parameters are expressed in the form of a numerical range, the numerical range should be understood to specifically disclose all ranges formed by the pairing of any upper limit, lower limit, and preferred value in the numerical range, regardless of whether the range is explicitly stated; for example, if a numerical range of "2 to 8" is stated, the numerical range should be interpreted as including ranges such as "2 to 7", "2 to 6", "5 to 7", "3 to 4 and 6 to 7", "3 to 5 and 7", "2 and 5 to 7", etc. Unless otherwise specified, the numerical ranges stated herein include both their end values ​​and all integers and fractions within the numerical range.

[0027] The orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience and simplification of description, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation of this document.

[0028] The embodiments of the utility model will be described in further detail below in conjunction with the accompanying drawings.

[0029] Embodiment 1

[0030] like Figures 2 to 3 As shown, a grinding wheel for a groove rail grinding device is installed on the groove rail grinding device and is used to grind the groove rail 001; the edge of the wheel rim 1 of the grinding wheel 002 is provided with a chamfer, and the axial width of the chamfer a=15-20mm; the angle between the inclined surface and the end surface of the chamfer is 8-10°. In this way, it can be ensured that there is a suitable gap between the wheel rim 1 of the grinding wheel and the groove rail, ensuring that the grinding wheel will not interfere with the groove rail, reducing the wear of the wheel rim and the groove rail, and facilitating the safe passage of vehicles through curves and switches. It is conducive to the safe passage of vehicles through curves and switches without derailment.

[0031] In this example, the two end surfaces of the wheel spoke of the grinding wheel 002 are provided with a weight-reducing ring groove 2. At the same time, the bottom of the weight-reducing ring groove 2 is evenly distributed with a plurality of weight-reducing through holes 3 along the circumferential direction. The weight is small, the installation and use are convenient, the labor is saved, the work efficiency is improved, and the working time is shortened.

[0032] In this example, the tread of the polished wheel 002 complies with the standard of "Road Vehicle Wheel Rim Tread Profile", the diameter of the polished wheel 002 is less than or equal to Φ554mm; the wheel thickness is 130mm, the center hole 4 has a diameter of Φ105mm, and a keyway 5 is provided in the center hole 4. There are 4 weight-reducing through holes 3, with a diameter of Φ325mm.

[0033] Embodiment 2

[0034] like Figures 4 to 5 As shown, a groove rail grinding device includes a frame 301, a driving wheel 302, a driven wheel 303 and a driving mechanism; a pair of driving wheels 302 and a pair of driven wheels 303 are respectively installed at the front and rear of the frame 301; a pair of wheels are installed symmetrically on the left and right sides; specifically, each is installed on the frame 301 through a pair of inner bearing seats 304 and outer bearing seats 305, and can be fixed by bolts. In the example, the inner distance between the rims of the left and right wheels is 1353mm; the front and rear wheelbase is 2300mm, which is compatible with the standard track.

[0035] The driving mechanism is installed on the frame 301, and is used to drive the active wheel 302 to drive the grooved rail grinding device to move along the grooved rail to grind the grooved rail; the specific driving mechanism includes a transmission shaft 306, a coupling 307 and a motor-reduction box 308; the motor-reduction box 308 is installed on the frame 301, and is connected to the transmission shaft 306 through the coupling 307; the transmission shaft 306 is connected to and drives the active wheel 302.

[0036] The driving wheel 302 and the driven wheel 303 are grinding wheels for the grooved rail grinding device described in the first embodiment.

[0037] If the grooved rail grinding device of this example does not use the grinding wheel of the first embodiment, it can only run on standard rails. When running on grooved rails, due to the lack of appropriate clearance between the wheel flange and the rail, the wheel flange and the rail will be severely worn, and there is a safety hazard of derailment when passing through curves and switches. After using the grinding wheel of the first embodiment, it can not only run safely on standard rails, but also on grooved rails.

[0038] The unique structural design of the grinding wheel of the first embodiment meets the standard, ensures the wheel-rail clearance, reduces the wear of the wheel flange and the rail, and safely passes through the grooved rail curve and the turnout without derailment. At the same time, the structure is simple and the weight is light.

[0039] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A grinding wheel for a grooved rail grinding device, installed on the grooved rail grinding device, used for grinding the grooved rail (001); characterized in that: The edge of the wheel rim (1) of the grinding wheel (002) is provided with a chamfer, and the axial width of the chamfer a=15-20 mm; the angle between the inclined surface of the chamfer and the end surface is 8-10°.

2. The grinding wheel for the grooved rail grinding device according to claim 1, characterized in that: The grinding wheel (002) is provided with weight-reducing annular grooves (2) on both end surfaces of the wheel spoke.

3. The grinding wheel for the grooved rail grinding device according to claim 2, characterized in that: The bottom of the weight-reducing annular groove (2) is provided with a plurality of weight-reducing through holes (3) evenly distributed along the circumferential direction.

4. The grinding wheel for a grooved rail grinding device according to claim 1, 2 or 3, characterized in that: The diameter of the grinding wheel (002) is less than or equal to Φ554 mm; the wheel thickness is 130 mm, the diameter of the center hole (4) is Φ105 mm, and a keyway (5) is arranged in the center hole (4).

5. A groove rail grinding device, characterized in that: The vehicle comprises a vehicle frame (301), a driving wheel (302), a driven wheel (303) and a driving mechanism; a pair of driving wheels (302) and a pair of driven wheels (303) are respectively installed at the front and rear of the vehicle frame (301); the pair of wheels are installed symmetrically on the left and right; the driving mechanism drives the driving wheel (302) to drive the grooved rail grinding device to move along the grooved rail to grind the grooved rail; The driving wheel (302) and the driven wheel (303) are grinding wheels for a grooved rail grinding device according to any one of claims 1, 2, 3 or 4.

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