CN213153014U

CN213153014U - Tool bit mechanism of electric scissors

Info

Publication number: CN213153014U
Application number: CN202021557728.1U
Authority: CN
Inventors: 王建
Original assignee: Huizhou Siggear Drive Machinery Co ltd
Current assignee: Guangdong SiGe transmission intelligent technology Co.,Ltd.
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-05-11
Anticipated expiration: 2030-07-31

Abstract

The utility model relates to a mechanical shearing equipment technical field specifically is a tool bit mechanism of electric shears, including lead screw pin, plane bearing, moving blade, swing straight-teeth gear, body frame, nut, screw, plane bearing and stationary blade, install plane bearing in the one side of moving blade and stationary blade interlock, rotate through the reduction gear swing straight-teeth gear and moving blade realize shearing the interlock from top to bottom, owing to set up plane bearing and plane bearing make the frictional force of moving blade and stationary blade mutual interlock reduce in the process of interlock, the utility model discloses reduce the friction of stationary blade and moving blade and make the motor power of electric shears reduce and increase battery continuation of journey, prolong the life of battery, motor; and the maintenance to stationary blade and moving blade is reduced, reduces the maintenance cost.

Description

Tool bit mechanism of electric scissors

Technical Field

The utility model belongs to the technical field of mechanical shearing equipment, especially, relate to a tool bit mechanism of electric shears.

Background

As is well known, with the development of forestry and agriculture, there are many electric scissors tools on the market today for pruning branches of trees with branches trimmed as required, and in the pruning process, the electric scissors are prone to have large power loss to the battery and easy abrasion of the blades due to resistance generated by friction between the fixed blade, the movable blade and the pin.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a tool bit mechanism of electric scissors, which reduces the friction between a fixed blade and a movable blade, so that the motor power of the electric scissors is reduced, the battery endurance is increased, and the service life of the battery and the motor is prolonged; and the maintenance to stationary blade and moving blade is reduced, reduces the maintenance cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a cutter head mechanism of electric scissors is characterized by comprising a screw rod pin, a first bearing, a movable cutter blade, a swing straight gear, a main frame, a nut, a screw, a second bearing and a fixed cutter blade; the fixed blade pass through screw fixed mounting in on the body frame, swing straight-teeth gear with moving blade fixed connection, the moving blade with the fixed blade sets up relatively, and the moving blade is located the fixed blade top, the second bearing is located between moving blade and the fixed blade, first bearing is located between lead screw pin and the swing straight-teeth gear, lead screw pin band nut one end is located the swing straight-teeth gear, and lead screw pin band thread one end is located the fixed blade to fix with the nut.

Furthermore, a first concave mounting groove is formed in the inner side of the nut of the screw rod pin, and the depth of the first concave mounting groove is matched with the thickness of the first bearing.

Furthermore, the first bearing and the second bearing are both plane needle roller bearings, the first bearing reduces the friction force between the screw rod pin and the swing straight gear, and the second bearing reduces the friction force between the movable blade and the fixed blade.

Furthermore, a second concave mounting groove is formed in one side, meshed with each other, of the fixed blade and the movable blade, and the depth of the second concave mounting groove is equal to the thickness of the second bearing.

Furthermore, the swing straight gear is of a Z-shaped structure, the part, attached to the movable blade, of the swing straight gear is concave, the thickness of the movable blade slightly protrudes out of the concave part of the swing straight gear, and after the swing straight gear is connected with the movable blade, the thickness of the swing straight gear and the thickness of the movable blade after installation are reduced, and the whole size is reduced.

Furthermore, a round hole is formed in the front end of the swing straight gear, and the round hole is used for connecting the swing straight gear with the movable blade.

Furthermore, the moving blade is provided with a connecting rod of a cylindrical structure, the size of the connecting rod is matched with that of the round hole, and the connecting rod protrudes towards the round hole.

Furthermore, one side of the nut, which is close to the fixed blade, is provided with insections outwards.

Furthermore, the fixed blade is of an arc-shaped structure and is bent towards the movable blade, and when the branches are sheared, the branches cannot easily slide out of the arc-shaped structure of the fixed blade due to the arc-shaped fixed blade when the branches are pressed by the movable blade.

The utility model has the advantages that

The utility model provides a cutter head mechanism of electric scissors, which adds a plane bearing on the cutter head mechanism to reduce the friction between a fixed blade and a movable blade, so that the motor power of the electric scissors is reduced to increase the battery endurance and prolong the service life of the battery and the motor; and the friction reduces the maintenance to stationary blade and moving blade, reduces the maintenance cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

description of reference numerals: the main frame comprises a screw rod pin 11, a main frame 1, a screw 2, a nut 3, a fixed blade 4, a movable blade second inwards concave mounting groove 5, a plane needle roller bearing 6, a fixed blade second inwards concave mounting groove 7, a movable blade 8, a swing straight gear 9, a plane needle roller bearing 10, a screw rod pin 11 and a first inwards concave mounting groove 12.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout, which are exemplary and are intended to be illustrative only and not to be construed as limiting the invention, and, accordingly, the description is for the purpose of illustration only and the practice of the inventive concepts herein is not intended to be limited solely to the exemplary embodiments described herein and the illustrations in the drawings, which are not intended to be limiting.

As shown in fig. 1-3:

example 1

First indent mounting groove has been seted up to the nut inboard of lead screw pin, the degree of depth and the thickness phase-match of first bearing of first indent mounting groove.

The first bearing and the second bearing are both plane needle roller bearings, the first bearing reduces the friction force between the screw rod pin and the swing straight gear, and the second bearing reduces the friction force between the movable blade and the fixed blade.

The one side of the mutual interlock of stationary blade and movable blade has all been seted up the second indent mounting groove, and the degree of depth of second indent mounting groove is general of second bearing thickness.

The swing straight gear is of a Z-shaped structure, the part of the swing straight gear, which is attached to the movable blade, is concave, the thickness of the movable blade slightly protrudes out of the concave part of the swing straight gear, and after the swing straight gear is connected with the movable blade, the thickness of the swing straight gear and the movable blade after installation is reduced, and the whole volume is reduced.

And a circular hole is formed in the front end of the swing straight gear and used for connecting the swing straight gear with the movable blade.

The moving blade is provided with a connecting rod of a cylindrical structure, the size of the connecting rod is matched with that of the round hole, and the connecting rod protrudes towards the round hole.

One side of the nut, which is close to the fixed blade, is provided with insections outwards.

The fixed blade is of an arc-shaped structure and is bent towards the movable blade, and when the branches are sheared, the branches cannot easily slide out of the arc-shaped structure of the fixed blade due to the arc-shaped reason of the fixed blade when the branches are pressed by the movable blade.

Example 2

In this embodiment, an inner groove matched with the first bearing is formed on the outer side of the swing spur gear.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be implemented by any prior art.

Claims

1. A cutter head mechanism of electric scissors is characterized by comprising a screw rod pin, a first bearing, a movable cutter blade, a swing straight gear, a main frame, a nut, a screw, a second bearing and a fixed cutter blade; the fixed blade pass through screw fixed mounting in on the body frame, swing straight-teeth gear with moving blade fixed connection, the moving blade with the fixed blade sets up relatively, and the moving blade is located the fixed blade top, the second bearing is located between moving blade and the fixed blade, first bearing is located between lead screw pin and the swing straight-teeth gear, lead screw pin band nut one end is located the swing straight-teeth gear, and lead screw pin band thread one end is located the fixed blade to fix with the nut.

2. The cutter head mechanism of electric scissors according to claim 1, wherein a first concave mounting groove is formed on the inner side of the nut of the screw rod pin.

3. The blade mechanism of electric shears according to claim 1, wherein the first and second bearings are both flat needle bearings.

4. The cutter head mechanism of electric scissors according to claim 1, wherein the surfaces of the fixed blade and the movable blade, which are engaged with each other, are provided with second concave mounting grooves.

5. The cutter head mechanism of electric shears according to claim 1, wherein the oscillating spur gear is of a Z-shaped structure, and the part of the oscillating spur gear, which is attached to the movable blade, is concave.

6. The cutter head mechanism of electric shears according to claim 1, wherein the spur gear is provided with a circular hole at a front end thereof.

7. The cutter head mechanism of electric scissors according to claim 1, wherein the movable blade is provided with a connecting rod, and the size of the connecting rod is matched with that of the round hole.

8. The cutter head mechanism of electric shears according to claim 1, wherein the nut has serrations on the side thereof adjacent to the fixed blade.

9. The blade head mechanism of electric shears according to claim 1, wherein the stationary blade is curved toward the movable blade.