Modularized cutter for steel rail modification and maintenance

Abstract

The utility model discloses a modularized cutter for modifying and maintaining a steel rail, which comprises a cutter head body and is characterized in that a plurality of cutter boxes are arranged on the cutter head body along the circumferential surface, cutter heads are arranged on the cutter boxes, bolts are arranged below the cutter boxes, mounting grooves are formed in the cutter head body, and the mounting grooves are connected with the cutter heads through bolts. A mounting groove is formed in the cutter head body, the plug pin can be inserted into the mounting groove and is matched with the mounting groove, a positioning groove is formed in the plug pin, a threaded hole coaxial with the positioning groove in the plug pin is formed in the cutter head body, and a bolt is inserted into the threaded hole in the cutter head body and the positioning groove in the plug pin to fix the cutter box. The cutter boxes are distributed on the periphery of the cutter head body, the cutter boxes can be replaced by installing the plug pins on the cutter boxes into the installation grooves in the cutter head body and fastening the plug pins through the cutter box locking screws and loosening the cutter box locking screws, and the structure is convenient to assemble and disassemble and easy to operate.

Description

Technical Field

[0001] The utility model relates to a rail repair and maintenance device, in particular to a modular tool used for rail modification and maintenance. Background Art

[0002] Rails are one of the key factors for the safety of passenger and freight operations. After long-term friction and extrusion between wheels, rails will have many defects on their surface, such as fat edges, scratches, cracks, peeling, and falling blocks. This will not only aggravate rail defects, but also have an adverse effect on the safety of train operation. Therefore, the line defects will be regularly inspected and maintenance will be carried out in a timely manner. At present, the rail repair and maintenance forming tools used by domestic milling and grinding vehicles are still mainly imported, and the imported products are of an integral structure. If they encounter special working conditions, local damage will most likely cause the entire cutter head to be scrapped, greatly increasing the construction cost. Utility Model Content

[0003] The utility model aims to provide a modular tool for rail modification and maintenance, so as to solve the disadvantage of the prior art that it is inconvenient to repair the local damage of the cutter disc.

[0004] The utility model is implemented by adopting the following technical scheme: a modular tool for rail modification and maintenance, including a cutter disc body, characterized in that a plurality of cutter boxes are arranged along the circumferential surface of the cutter disc body, a cutter head is arranged on the cutter box, a latch is arranged below the cutter box, a mounting groove is arranged on the cutter disc body, the latch can be inserted into the mounting groove and cooperate with it, a positioning groove is arranged on the latch, a threaded hole coaxial with the positioning groove on the latch is arranged on the cutter disc body, and a bolt is inserted into the threaded hole on the cutter disc body and the positioning groove on the latch to fix the cutter box.

[0005] Furthermore, the cutter head arranged on the knife box includes round cutter particles and straight cutter particles, the round cutter particles and the straight cutter particles are distributed in a spiral and arranged at intervals, and the round cutter particles and the straight cutter particles are fixed to the knife box by cutter particle locking screws.

[0006] Furthermore, an axial positioning annular surface and a circumferential positioning annular surface are respectively provided on both sides of the installation groove, and an oblique positioning surface is provided on the bottom surface of the knife box, and an end surface at one end of the oblique positioning surface is a positioning end surface.

[0007] Furthermore, the axial positioning annular surface is perpendicular to the circumferential surface of the cutter head body, and the circumferential positioning annular surface is parallel to the circumferential surface of the cutter head body.

[0008] Furthermore, the inclined positioning surface of the knife box is fitted with the circumferential positioning annular surface, and the positioning end surface is fitted with the axial positioning annular surface.

[0009] Furthermore, the positioning groove on the latch is a locking concave cone surface, the threaded hole coaxial therewith is a knife box locking threaded hole, and the knife box locking screw is inserted into the knife box locking threaded hole and the locking concave cone surface.

[0010] Furthermore, an outer conical surface is provided at the top end of the locking screw of the knife box, and the outer conical surface fits with the locking concave conical surface.

[0011] The modular tool for rail modification and maintenance described in the utility model has the following beneficial effects: the tool boxes distributed on the circumference of the tool disc body can be replaced by installing the pins on the tool boxes into the installation grooves on the tool disc body and fastening them with the tool box locking screws. The tool box locking screws can be loosened to facilitate loading and unloading and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying creative work.

[0013] Figure 1 A front view of a modular tool for rail modification and maintenance;

[0014] Figure 2 This is a schematic diagram of the cutter head of the utility model;

[0015] Figure 3 This is the front view of the knife box of the utility model;

[0016] Figure 4 This is a schematic diagram of the installation surface of the knife box of the utility model;

[0017] Figure 5 This is a schematic diagram of the locking screw of the cutter head of the utility model;

[0018] In the figure, 1-knife box, 2-circular knife grain, 3-straight knife grain, 4-knife disc body, 5-knife grain locking screw, 6-knife box locking screw, 7-mounting groove, 8-knife box locking threaded hole, 9-axial positioning annular surface, 10-circumferential positioning annular surface, 11-positioning inclined surface, 12-pin, 13-locking concave cone surface, 14-positioning end surface, 15-external cone surface. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-5 As shown, a modular tool for rail modification and maintenance comprises a tool box 1, round tool particles 2, straight tool particles 3, a tool disc body 4, tool particle locking screws 5, and tool box locking screws 6. A plurality of tool boxes 1 are spirally distributed around the tool disc body 4, and round tool particles 2 and straight tool particles 3 are spirally distributed on the tool box 1. The round tool particles 2 and straight tool particles 3 are arranged at intervals, and each tool particle is locked on the tool box 1 by the corresponding tool particle locking screw 5. All the tool particles are sequentially spliced ​​with each other to form a complete forming surface processing blade shape.

[0022] A latch 12 is provided below the knife box 1, and a plurality of mounting grooves 7 are provided on the knife disc body 4. The knife box 1 is inserted into the mounting groove 7 on the knife disc body 4 by inserting the latch 12. An axial positioning annular surface 9 and a circumferential positioning annular surface 10 are provided on both sides of the mounting groove 7, respectively. The axial positioning annular surface 9 and the circumferential positioning annular surface 10 are respectively located at annular protrusions on both sides of the mounting groove 7, wherein the axial positioning annular surface 9 is perpendicular to the circumferential surface of the knife disc body 4, and the circumferential positioning annular surface 10 is parallel to the circumferential surface of the knife disc body 4. An oblique positioning surface 11 is provided on the bottom surface of the knife box 1, and the end surface of one end of the oblique positioning surface 11 is a positioning end surface 14. The oblique positioning surface 11 of the knife box 1 is in contact with the circumferential positioning annular surface 10, and the positioning end surface 14 is in contact with the axial positioning annular surface 9.

[0023] The knife box 1 is fixed to the knife disc body 4 by a knife box locking screw 6. A knife box locking threaded hole 8 is provided at each mounting groove 7 on the knife disc body 4. The knife box locking threaded hole 8 is provided on the end surface of the knife disc body 4. The latch pin 12 on the knife box 1 is provided with a locking concave cone surface 13 coaxial with the knife box locking threaded hole 8. The knife box locking screw 6 passes through the knife box locking threaded hole 8 and is inserted into the locking concave cone surface 13 on the latch pin 12.

[0024] The top of the knife box locking screw 6 is provided with an outer cone 15, which fits with the locking concave cone 13, thereby locking the knife box 1 and making it firmly and reliably installed. When disassembling, the knife box 1 can be pulled out by only loosening a part of the knife box locking screw 6, so as to prevent it from being lost during on-site operation.

[0025] The above embodiments describe the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the modifications and changes made by those skilled in the art shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A modular tool for rail repair and maintenance, comprising a cutter head (4), characterized in that: A plurality of knife boxes (1) are arranged along the circumferential surface of the knife disc body (4), a knife head is arranged on the knife box (1), a latch (12) is arranged below the knife box (1), a mounting groove (7) is arranged on the knife disc body (4), the latch (12) can be inserted into the mounting groove (7) and cooperate therewith, a positioning groove is arranged on the latch (12), a threaded hole coaxial with the positioning groove on the latch (12) is arranged on the knife disc body (4), and a bolt is inserted into the threaded hole on the knife disc body (4) and the positioning groove on the latch (12) to fix the knife box (1).

2. A modular tool for rail repair and maintenance according to claim 1, characterized in that: The knife head arranged on the knife box (1) comprises round knife particles (2) and straight knife particles (3), wherein the round knife particles (2) and the straight knife particles (3) are distributed in a spiral and arranged at intervals, and the round knife particles (2) and the straight knife particles (3) are both fixed to the knife box (1) by knife particle locking screws (5).

3. A modular tool for rail repair and maintenance according to claim 1, characterized in that: An axial positioning annular surface (9) and a circumferential positioning annular surface (10) are respectively provided on both sides of the installation groove (7), and an oblique positioning surface (11) is provided on the bottom surface of the knife box (1), and an end surface at one end of the oblique positioning surface (11) is a positioning end surface (14).

4. A modular tool for rail repair and maintenance according to claim 3, characterized in that: The axial positioning annular surface (9) is perpendicular to the circumferential surface of the cutter head body (4), and the circumferential positioning annular surface (10) is parallel to the circumferential surface of the cutter head body (4).

5. A modular tool for rail repair and maintenance according to claim 3, characterized in that: The inclined positioning surface (11) of the knife box (1) fits with the circumferential positioning annular surface (10), and the positioning end surface (14) fits with the axial positioning annular surface (9).

6. A modular tool for rail repair and maintenance according to claim 1, characterized in that: The positioning groove on the latch pin (12) is a locking concave cone surface (13), and the threaded hole coaxial therewith is a knife box locking threaded hole (8). The knife box locking screw (6) is inserted into the knife box locking threaded hole (8) and the locking concave cone surface (13).

7. A modular tool for rail repair and maintenance according to claim 6, characterized in that: An outer conical surface (15) is provided at the top end of the knife box locking screw (6), and the outer conical surface (15) fits with the locking concave conical surface (13).

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