CN212634534U - Saw blade matched with rechargeable electric circular saw - Google Patents

Abstract

The utility model relates to an electric saw especially relates to a rechargeable electric circular saw. Rechargeable supporting saw bit of electric circular saw, the tool bit rake face of this saw bit has an interior concavity circular arc. The utility model discloses reduce the energy consumption from the angle of saw bit to extension battery duration improves the cutting speed.

Description

Saw blade matched with rechargeable electric circular saw

Technical Field

The utility model relates to an electric saw especially relates to a rechargeable electric circular saw.

Background

Rechargeable electric circular saw is one kind and uses the single-phase series excitation motor of lithium cell as power, then carries out the instrument of sawing the operation through drive mechanism drive circular saw piece, has structural design novelty, characteristics such as safe and reliable, work efficiency height. The electric circular saw adopts a lifting and climbing type appearance structure and mainly comprises a motor, a reduction gearbox, a protective cover, an adjusting mechanism, a bottom plate, a handle, a switch, a charging head, a circular saw blade and the like. Since the advent, the use of the device is not limited by places and positions, and the device is popular with users. However, in the actual use process, there are often: the battery capacity is small, and the working time of single charging is short; the cutting overload battery is protected by heat, so that the working efficiency is influenced; the cutting speed is slower than that of the traditional electric circular saw, and the like. In order to extend the operating time of the battery, there are two directions, that is, to increase the battery capacity or to increase the energy density of the battery, but in the development of lithium batteries, the increase of the energy density has been a worldwide problem in view of the capacity of a material used to store electricity, and it is difficult to greatly increase the battery capacity in a limited installation space of an electric circular saw.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art and providing a matched saw blade of a rechargeable electric circular saw. The utility model discloses reduce the energy consumption from the angle of saw bit to extension battery duration improves the cutting speed.

In order to solve the above technical problem, a rechargeable electric circular saw is provided with a saw blade, and a front tool face of a tool bit of the saw blade is provided with an inward concave arc.

The rechargeable electric circular saw match saw bit, concave shape circular arc radius is 1.2 mm.

The rechargeable electric circular saw is matched with a saw blade, and the tooth side surface of the saw blade is provided with an inner concave surface lower than the tooth tip from the tooth bottom to the middle part of the tooth.

The rechargeable electric circular saw is matched with a saw blade, and the inner concave surface is 0.3mm lower than the tooth tip.

The rechargeable electric circular saw is matched with a saw blade, the front angle of the saw blade is 23 degrees, the inclination angle of the blade is 15 degrees, the main deflection angle is 15 degrees, and the rear angle is 12 degrees.

The utility model discloses carbide tool bit designs into the interior concave arc that the rake face has one, can show the friction that reduces saw-dust and rake face to make the saw-dust in time fracture and follow the interior departure of pocket. The inner concave surface of the tooth flank surface from the tooth bottom to the tooth middle part lower than the tooth tip reduces the friction between the tooth flank surface and the cutting surface of the workpiece, and reduces the adhesion of resin and wood dust. Due to the design of the front angle, the edge inclination angle, the main deflection angle and the back angle of the saw blade, under the condition of ensuring the strength of the cutter tip, the angle is sharp as much as possible, and the cutting resistance is reduced. Through tests, the charging type electric circular saw using the saw blade of the utility model has the advantages that the working time of single charging is prolonged by more than 1 time; basically, the overload battery is not cut and is protected by heating, the working efficiency is improved, and the cutting speed is accelerated.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of a circular arc of the concave shape;

FIG. 3 is a schematic view of the edge rake angle;

fig. 4 is a schematic view of the concave surface and the principal declination.

Detailed Description

As shown in fig. 1 and 2: the supporting saw bit of rechargeable electric circular saw, the 2 rake faces of tool bit of this saw bit 1 have an interior concave arc 3.

The rechargeable electric circular saw match saw bit, 3 radiuses of interior concave arc are 1.2 mm.

The rechargeable electric circular saw is matched with a saw blade, and an inner concave surface 4 lower than a tooth tip is arranged from the tooth bottom to the middle of the tooth side surface of the saw blade. The concave surface is 0.3mm lower than the tip (see fig. 4).

As shown in fig. 4 and fig. 2 and 3, the rechargeable electric circular saw is configured with a saw blade, wherein the front angle 5 of the saw blade is 23 °, the blade inclination angle 6 is 15 °, the main declination angle 7 is 15 °, and the rear angle 8 is 12 °.

Claims (3)

1. The matched saw blade of rechargeable electric circular saw, its characterized in that, the tool bit rake face of this saw bit has an interior concave circular arc, the flank of tooth of saw bit is equipped with the interior concave surface that is lower than the prong from the bottom of the tooth to the tooth middle part, saw bit anterior angle is 23, and the sword inclination is 15, and main declination is 15, and the relief angle design is 12.

2. The rechargeable electric circular saw with saw blade as claimed in claim 1, wherein the radius of the concave arc is 1.2 mm.

3. The wrap-around electric circular saw companion saw blade of claim 1, wherein the concave inner surface is 0.3mm lower than the tip.

Images