Road cutting saw blade

Abstract

The utility model discloses a road cutting saw blade, which relates to the technical field of road cutting saw blades and comprises a base disc and a cutting blade, a mounting hole is arranged in the middle of the base disc, a positioning hole is annularly arranged on the outer side of the mounting hole, the cutting blade is annularly arranged on the outer side of the base disc, and the cutting blade is movably inserted on the base disc. An adjusting mechanism is installed on the front end face of the base disc, a guide groove is annularly formed in the rear end face of the base disc and corresponds to the adjusting mechanism in front-back position, and a guide rod is movably connected into the guide groove and fixedly installed on the cutting blade. According to the saw blade, the length of the cutting blade can be conveniently adjusted, the cutting requirement is met, and the saw blade can be utilized to the maximum extent; and moreover, the inclined surface is arranged on the base disc, so that cut chips can be conveniently guided out, and the saw blade can be quickly pushed without being blocked by the chips.

Description

Technical Field

[0001] The utility model relates to the technical field of road cutting saw blades, in particular to a road cutting saw blade. Background Art

[0002] Saw blades are a general term for thin circular cutting tools used to cut solid materials. Diamond saw blades are used for stone cutting and are also used for road cutting. Diamond saw blades are named after the diamond composite blade head welded on their edges.

[0003] Old roads refer to roads that have been in operation for a long time. Their internal structures are not as regular as new roads. It is difficult for ordinary saw blades to cut old roads, which wastes time and results in low cutting efficiency. There is also a lack of diamond saw blades suitable for cutting old roads on the market.

[0004] Existing saw blades for road cutting have low strength per piece. When cutting hard cement, the saw blades are prone to breakage. Once the saw blade is damaged, the entire blade needs to be replaced, which increases the cost and is not conducive to widespread use. To address this problem, we propose a saw blade for road cutting. Utility Model Content

[0005] The purpose of the present utility model is to provide a road cutting saw blade to solve the problem of the existing saw blade for road cutting proposed in the above background technology, that the single-piece strength is low, and the cutting saw blade is prone to cracking after cutting harder cement. After the saw blade is damaged, the entire saw blade needs to be replaced, which increases the cost of use and is not conducive to popularization and use.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a road cutting saw blade, comprising a base plate and a cutting blade, a positioning hole and a mounting hole being provided in the middle of the base plate, the positioning hole being provided in an annular shape outside the mounting hole, the cutting blade being provided in an annular shape outside the base plate, and the cutting blade being movably plugged into the base plate, an adjustment mechanism being provided on the front end surface of the base plate, and a guide groove being provided in an annular shape on the rear end surface of the base plate, the guide groove and the adjustment mechanism corresponding to each other in front and rear positions, and a guide rod being movably connected to the inside of the guide groove, and the guide rod being fixedly mounted on the cutting blade;

[0007] The adjustment mechanism includes a mounting plate, the inner side surface of the mounting plate is rotatably connected to an adjusting screw, the adjusting screw is threadedly connected to a sliding block, the sliding block is fixedly installed with the cutting blade, and the front end of the base plate is provided with a sliding groove for sliding the sliding block, the front and rear positions of the sliding groove and the guide groove correspond to each other, and the lengths of the sliding groove and the guide groove are equal.

[0008] Preferably, it is adjacent to the extension line of the opposite side of the cutting blade.

[0009] Preferably, the center lines of the adjusting screw and the guide rod are perpendicular to each other, and the adjusting screw and the guide rod are arranged on two sides of the base plate facing away from each other.

[0010] Preferably, the guide rod and the base plate are connected by threads, and the center line of the base plate and the center line of the guide rod are parallel to each other.

[0011] Preferably, a slot for inserting a cutting blade is provided on the base plate, and the slot is connected to the inside of the guide groove and the sliding groove.

[0012] Preferably, adjacent slots are not connected, and the number of slots corresponds to the number of cutting blades.

[0013] Preferably, the longitudinal section of the cutting blade is triangular, and the sliding block is arranged at the front center of the cutting blade.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. When the cutting blade of this type of road cutting saw blade is worn during use and is no longer suitable for cutting, the adjusting screw is rotated to connect the adjusting screw with the sliding block. At this time, the sliding block drives the cutting blade to move from the inside of the base plate to the outside, thereby increasing the distance the cutting blade extends from the base plate and maximizing the use of the cutting blade.

[0016] This type of road cutting saw blade can facilitate the discharge of cutting debris by arranging an inclined slope on the base plate, and helps the saw blade to advance quickly without being blocked by the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the utility model from a first perspective;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model from a second perspective;

[0019] Figure 3 It is a schematic diagram of the main view of the structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the top-sectional structure of the utility model;

[0021] Figure 5 For the utility model Figure 4 Enlarged view of point M.

[0022] In the figure: 1, base plate; 101, inclined surface; 102, slot; 2, cutting blade; 3, guide groove; 4, guide rod; 5, adjustment mechanism; 51, mounting plate; 52, adjusting screw; 53, sliding block; 6, positioning hole; 7, mounting hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example: See Figure 1-5 The present invention provides a technical solution: a road cutting saw blade, which is mainly aimed at the existing saw blades for road cutting. The single-piece strength is low, and after cutting harder cement, the cutting saw blade is prone to cracking, which affects the service life and effect of the cutting saw blade. The existing saw blades for road cutting have low strength per piece. After cutting harder cement, the cutting saw blade is prone to cracking. After the saw blade is damaged, the entire saw blade needs to be replaced, which increases the cost of use and is not conducive to popularization and use. The specific solution is as follows: It includes a base plate 1 and a cutting blade 2. A positioning hole 6 and a mounting hole 7 are set in the middle of the base plate 1. The positioning hole 6 is arranged in a ring shape outside the mounting hole 7. The setting of the positioning hole 6 and the mounting hole 7 can facilitate the connection and fixation of the saw blade and the cutting machine. By setting the base plate 1 structure, the strength of the cutting saw blade can be increased, the probability of cracking during the road cutting process is reduced, and the safety of road cutting is further guaranteed.

[0025] See also Figure 1 and Figure 2 , wherein the cutting blade 2 is arranged in a ring shape on the outside of the base plate 1, and the cutting blade 2 is movably inserted into the base plate 1, and an adjusting mechanism 5 is installed on the front end surface of the base plate 1, and a guide groove 3 is opened in a ring shape on the rear end surface of the base plate 1. The front and rear positions of the guide groove 3 and the adjusting mechanism 5 correspond to each other, and a guide rod 4 is movably connected inside the guide groove 3, and the guide rod 4 is fixedly installed on the cutting blade 2; the adjusting mechanism 5 can facilitate the adjustment of the length of the cutting blade 2 extending out of the base plate 1. After the cutting blade 2 is worn, the adjusting mechanism 5 can be provided for adjustment, so that the cutting blade 2 is extended. When the cutting blade 2 is prevented from extending a large distance and reducing the cutting strength, the cutting blade 2 can be maximized.

[0026] See also Figure 2-5, wherein the adjustment mechanism 5 includes a mounting plate 51, the mounting plate 51 and the base plate 1 are integrally processed, and the number of mounting plates 51 corresponds to the number of cutting blades 2. An adjusting screw 52 is rotatably connected to the inner side of the mounting plate 51, and a sliding block 53 is threadedly connected to the adjusting screw 52. The longitudinal section of the cutting blade 2 is triangular, and the sliding block 53 is arranged at the front center of the cutting blade 2. The sliding block 53 is fixedly installed with the cutting blade 2, and a slide groove 54 for sliding the sliding block 53 is provided at the front end of the base plate 1. The front and rear positions of the slide groove 54 and the guide groove 3 correspond, and the length of the slide groove 54 and the guide groove 3 are equal. The center lines of the adjusting screw 52 and the guide rod 4 are perpendicular to each other, and the adjusting screw 52 and the guide rod 4 are arranged on both sides of the base plate 1 with their backs to each other. The guide rod 4 and the base plate 1 are connected by threads, and the center line of the base plate 1 and the center line of the guide rod 4 are parallel to each other. When the end of the cutting blade 2 protrudes from the base plate 1 to a shorter distance due to wear, by rotating the adjusting screw 52, ​​through the threaded connection between the adjusting screw 52 and the sliding block 53, the sliding block 53 drives the cutting blade 2 to move from the inside of the base plate 1 to the outside, which can increase the distance that the cutting blade 2 protrudes from the base plate 1, thereby allowing the cutting blade 2 to be fully utilized.

[0027] Furthermore, the position of the cutting blade 2 can be further fixed by the movable connection between the guide groove 3 and the guide rod 4, thereby improving the stability of the cutting saw blade.

[0028] See also Figure 4 In this example, the outer edges of the base plate 1 are each provided with an inwardly inclined surface 101, positioned along the extension of the edge opposite the adjacent cutting blade 2. The base plate 1 is provided with slots 102 for inserting the cutting blade 2. The slots 102 are internally connected to the guide groove 3 and the chute 54. Adjacent slots 102 are not connected, and the number of slots 102 corresponds to the number of cutting blades 2. Providing the inclined surface 101 on the base plate 1 facilitates the removal of cutting debris, facilitating the rapid advancement of the saw blade without being blocked by debris.

[0029] Working principle: Before using this type of road cutting saw blade, the saw blade is fixed to the drive shaft of the cutting machine through the positioning hole 6 and the mounting hole 7, and then it can be used to cut the road surface; during use, after the cutting blade 2 is worn, the adjustment mechanism 5 can be provided to adjust the cutting blade 2 so that the cutting blade 2 is extended, and the cutting blade 2 can be maximized without reducing the cutting strength by extending the cutting blade 2 for a long distance; during specific operation, by rotating the adjusting screw 52, ​​through the threaded connection between the adjusting screw 52 and the sliding block 53, the sliding block 53 drives the cutting blade 2 to move from the inside of the base plate 1 to the outside, which can increase the distance that the cutting blade 2 extends out of the base plate 1, and the cutting blade 2 can be maximized; wherein, an inclined slope 101 is provided on the base plate 1, which can facilitate the discharge of cutting debris and help the saw blade to advance quickly without being blocked by debris.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road cutting saw blade, comprising a base plate (1) and a cutting blade (2), wherein a positioning hole (6) and a mounting hole (7) are provided in the middle of the base plate (1), wherein the positioning hole (6) is provided in an annular shape outside the mounting hole (7), and wherein: The cutting blade (2) is arranged in an annular shape on the outside of the base plate (1), and the cutting blade (2) is movably plugged into the base plate (1). An adjustment mechanism (5) is installed on the front end surface of the base plate (1). A guide groove (3) is provided in an annular shape on the rear end surface of the base plate (1). The guide groove (3) and the adjustment mechanism (5) correspond to each other in front and back positions. A guide rod (4) is movably connected inside the guide groove (3), and the guide rod (4) is fixedly installed on the cutting blade (2); The adjusting mechanism (5) comprises a mounting plate (51), an inner side surface of the mounting plate (51) is rotatably connected to an adjusting screw (52), a sliding block (53) is threadedly connected to the adjusting screw (52), the sliding block (53) is fixedly mounted on the cutting blade (2), and a sliding groove (54) for sliding the sliding block (53) is provided at the front end of the base plate (1), the front and rear positions of the sliding groove (54) and the guide groove (3) correspond to each other, and the lengths of the sliding groove (54) and the guide groove (3) are equal.

2. The road cutting saw blade according to claim 1, characterized in that: An inwardly inclined bevel (101) is provided at the edge of the outer side surface of the base plate (1), and the bevel (101) is provided on the extension line of the opposite side of the adjacent cutting blade (2).

3. The road cutting saw blade according to claim 1, characterized in that: The center lines of the adjusting screw (52) and the guide rod (4) are perpendicular to each other, and the adjusting screw (52) and the guide rod (4) are arranged on both sides of the base plate (1) in a direction opposite to each other.

4. The road cutting saw blade according to claim 1, characterized in that: The guide rod (4) and the base plate (1) are connected via threads, and the center line of the base plate (1) and the center line of the guide rod (4) are parallel to each other.

5. The road cutting saw blade according to claim 1, characterized in that: The base plate (1) is provided with a slot (102) for inserting the cutting blade (2), and the slot (102) is internally connected to the guide groove (3) and the sliding groove (54).

6. The road cutting saw blade according to claim 5, characterized in that: Adjacent slots (102) are not connected, and the number of slots (102) and cutting blades (2) corresponds to each other.

7. The road cutting saw blade according to claim 1, characterized in that: The cutting blade (2) has a triangular longitudinal section, and the sliding block (53) is arranged at the front center of the cutting blade (2).

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