CN202555904U

CN202555904U - Handheld power saw

Info

Publication number: CN202555904U
Application number: CN2012202146697U
Authority: CN
Inventors: 戴加育
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-14
Filing date: 2012-05-14
Publication date: 2012-11-28
Anticipated expiration: 2022-05-14

Abstract

The utility model relates to the field of machining, in particular to a handheld power saw, which mainly comprises a shell, a rotating shaft, a shaft sleeve, a shaft barrel, a shaft center, a saw blade, a [-shaped crankshaft, V-shaped grooves and a bearing. The handheld power saw is characterized in that the rotating shaft is arranged in the bearing which is arranged at one end in the shell; one end of the rotating shaft is connected with the shaft barrel, and the other end of the rotating shaft is combined with a power source; the shaft barrel is provided with two parallel V-shaped grooves; the other end of the shell is connected with the shaft sleeve in which the shaft center is arranged; one end of the shaft center is connected with the [-shaped crankshaft which is further pressed against the interiors of the V-shaped grooves, and the other end of the shaft center is connected with the saw blade; and therefore, the [-shaped crankshaft is pressed against the interiors of the V-shaped grooves to reciprocally move when the shaft barrel rotates. Compared with a saw adopting helical gear matching in the prior art, the saw can bear higher torque, so that the working efficiency of an operator is improved, the output rotating speed of a machine is increased, the reliability is improved, and the working efficiency is improved.

Description

A kind of hand-held power saw

Technical field

The utility model relates to processing equipment, specifically a kind of hand-held power saw.

Background technology

The prior electric saw comprises shell, and motor in the enclosure is installed; Suit drive bevel gear on the output shaft of said motor; Said drive bevel gear with by dynamic bevel gear engagement, saidly be installed in an end of power transmission shaft by dynamic bevel gear, the other end of said power transmission shaft is installed first helical gear; Second helical gear is installed on the saw blade main shaft, said first helical gear and the engagement of second helical gear; Behind the starter motor,, and then drive the rotation of saw blade main shaft through drive bevel gear, by dynamic bevel gear, first helical gear and second helical gear.The defective that said structure exists: adopt the helical gear transmission, the moment of torsion that bears is less than normal, the insufficient strength of gear, and through after running up for a long time, gear also has the phenomenon of beating tooth, poor reliability.

Summary of the invention

For solving the problems of the technologies described above, basis is novel to provide a kind of hand-held power to saw.

This novel following solution of taking is:

A kind of hand-held power saw, mainly by housing, rotating shaft, axle sleeve, beam barrel, axle core, saw blade, [shape bent axle, V-shaped groove, bearing is characterized in that for constituting: rotating shaft is inserted in the bearing that an end is installed in housing; Rotating shaft one end connects beam barrel, and the rotating shaft other end combines with power source, and two of said beam barrel layouts also connect V-shaped groove; Said housing other end connecting bushing; Placed axis core in the axle sleeve, and the end connection of axle core [the shape bent axle, [the shape bent axle is further conflicted in V-shaped groove; The other end of said axle core connects saw blade, and [the shape bent axle is conflicted and in V-shaped groove, moved back and forth when forming the beam barrel rotation.

In above-mentioned, beam barrel is arranged two and connect V-shaped groove and with [the shape bent axle combines, and [the shape bent axle is conflicted and formed in V-shaped groove that [the shape bent axle moves back and forth, and the saw blade mode of moving back and forth that connects through the axle core is further carried out various cuttings during the beam barrel rotation.

This saw cooperates with respect to the helical gear of prior art, can bear bigger moment of torsion, has improved operator's operating efficiency, the output speed of the machine of raising, and increased reliability, increase work efficiency.

Description of drawings

Fig. 1 is this novel a kind of hand-held power saw structure chart.

Indicate among the figure: 1-housing, 2-rotating shaft, 3-axle sleeve, 4-beam barrel, 5-axle core, 6-saw blade, 7-[shape bent axle, 8-V shape groove, 9-bearing.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further specified.

In Fig. 1, a kind of hand-held power saw, mainly by housing 1, rotating shaft 2, axle sleeve 3, beam barrel 4, axle core 5, saw blade 6, [shape bent axle 7, V-shaped groove 8, bearing 9 are for constituting; It is characterized in that: rotating shaft 2 is inserted in the bearing 9 that an end is installed in housing 1, and rotating shaft 2 one ends connect beam barrel 4, and rotating shaft 2 other ends combine with power source; Said beam barrel 4 two of layouts also connect V-shaped groove 8, said housing 1 other end connecting bushing 3, placed axis cores 5 in the axle sleeve 3; One end of axle core 5 connects [shape bent axle 7; [shape bent axle 7 is further conflicted in V-shaped groove 8, and the other end of said axle core 5 connects saw blade 6, and [shape bent axle 7 is conflicted and in V-shaped groove 8, moved back and forth when forming beam barrel 4 rotations.

In above-mentioned, beam barrel 4 is arranged two and connect V-shaped groove 8 and with [shape bent axle 7 combines, and [shape bent axle 7 is conflicted and formed V-shaped groove 8 in that [shape bent axle 7 moves back and forth, and carries out various cuttings through saw blade 6 modes of moving back and forth of axle core 5 connections further during beam barrel 4 rotations.

Certainly; Above-mentioned practical implementation is not to be this novel restriction, and those of ordinary skill also can be made some variations, improvement, interpolation or alternative in this novel essential scope; All technical schemes that mapping mode obtains that adopts the equivalence replacement or be equal to all drop in this novel protection domain.

Claims

1. hand-held power saw, mainly by housing, rotating shaft, axle sleeve, beam barrel, axle core, saw blade, [shape bent axle, V-shaped groove, bearing is characterized in that for constituting: rotating shaft is inserted in the bearing that an end is installed in housing; Rotating shaft one end connects beam barrel, and the rotating shaft other end combines with power source, and two of said beam barrel layouts also connect V-shaped groove; Said housing other end connecting bushing; Placed axis core in the axle sleeve, and the end connection of axle core [the shape bent axle, [the shape bent axle is further conflicted in V-shaped groove; The other end of said axle core connects saw blade, and [the shape bent axle is conflicted and in V-shaped groove, moved back and forth when forming the beam barrel rotation.