CN215074080U - Power direct-drive transmission mechanism of hedge trimmer - Google Patents

Abstract

The utility model discloses a hedge trimmer power directly drives formula drive mechanism, including casing, connection handle and blade subassembly etc. mainly install the motor in the casing in order to form the overhead mounting structure above the blade drive assembly, rotate motor shaft lug connection drive eccentric wheel again to through upper and lower connecting rod drive upper and lower blade relative movement and form the cutting. Obviously, in the above-mentioned power transmission process, because the output power of motor can directly export to blade drive assembly, that is to say the motor speed is blade functioning speed, so whole driven output efficiency is very high, and power directly drives and can reduce the loss, also can better eliminate whole trimmer great vibrations or shake that appear in the course of the work, increases the life of motor, guarantees the operation stationarity of trimmer to bring very big convenience for afforestation workman's use. Meanwhile, the overhead motor is adopted, so that the structural design is more compact, and the appearance is flexible and attractive.

Description

Power direct-drive transmission mechanism of hedge trimmer

Technical Field

The utility model relates to a drive mechanism for among afforestation hedge trimmer specifically is a hedge trimmer power directly drives formula drive mechanism.

Background

A hedge trimmer is a common landscaping trimming tool and mainly comprises an aluminum pipe, a control mechanism arranged at the rear end of the aluminum pipe, a transmission mechanism arranged at the front end of the aluminum pipe, a blade assembly and the like; the motor in the control mechanism is controlled to start during working, the motor power can drive the blade component to realize trimming work, the traditional transmission mechanism is mainly a gear box assembly, and the motor drives the transmission shaft for the output of the rear motor so as to drive the multi-gear-set to transmit. Obviously, the transmission of the plurality of groups of gear sets can reduce the power transmission output efficiency, cause great power loss, and if the normal operation of the blade assembly is ensured, the original rotating speed of the motor is required to be very high, so that the whole trimmer is greatly vibrated or shaken, and great inconvenience is brought to the use of landscaping workers. Meanwhile, the structural design of the rear motor also greatly influences the flexibility and the attractiveness of the overall appearance.

Disclosure of Invention

The utility model aims to solve the technical problem that the defect of the prior art is overcome and a hedge trimmer power direct-drive transmission mechanism with flexible and attractive appearance, high transmission output efficiency, less power loss and stable operation is provided.

The technical problem of the utility model is realized through following technical scheme:

a power direct drive transmission mechanism of a hedge trimmer comprises a shell, a connecting handle arranged at the rear part of the shell and a blade assembly arranged at the front part of the shell, wherein the blade assembly is provided with an upper blade and a lower blade which are arranged in a mutually attached mode; the blade driving assembly is provided with an upper connecting rod, an eccentric wheel and a lower connecting rod which are sequentially arranged from top to bottom, the upper connecting rod is connected with the upper blade, the lower connecting rod is connected with the lower blade, the eccentric wheel is simultaneously and eccentrically connected with the upper connecting rod and the lower connecting rod, the motor is arranged above the blade driving assembly, a motor shaft of the motor is directly connected with the eccentric wheel to drive the eccentric wheel to rotate, and the upper blade and the lower blade are driven by the upper connecting rod and the lower connecting rod to relatively move to form cutting.

The blade driving assembly further comprises an upper box body and a lower box body, the upper box body and the lower box body are mutually buckled and jointly seal the upper connecting rod, the eccentric wheel and the lower connecting rod, the motor is fixedly installed on the top surface of the upper box body in an inverted mode of a motor shaft, and the motor shaft penetrates through the upper box body to be directly connected with the eccentric wheel and drives the eccentric wheel to rotate.

A gear ring is arranged between the front end of the connecting handle and the rear part of the shell, and the front end of the connecting handle is rotatably arranged at the rear part of the shell at a fixed angle through the gear ring.

And a shell which is covered and installed is arranged outside the motor.

Compared with the prior art, the utility model discloses mainly be with the motor in the hedge trimmer drive mechanism install in the top of blade drive assembly in order to form the overhead mounting structure, rotate motor shaft lug connection and the drive eccentric wheel of motor again, this eccentric wheel just can form the cutting through upper and lower connecting rod drive upper and lower blade relative movement. Obviously, in the above-mentioned power transmission process, the output power of motor can directly be exported to blade drive assembly, that is to say the motor rotational speed is blade functioning speed, so whole driven output efficiency is very high, and power directly drives and can reduce the loss, also can better eliminate whole trimmer great vibrations or shake that appear in the course of the work, increases the life of motor, guarantees the operation stationarity of trimmer to bring very big convenience for afforestation workman's use. Meanwhile, the overhead motor is adopted, so that the structural design is more compact, and the appearance is flexible and attractive.

Drawings

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is a schematic view of the external structure of fig. 1.

Fig. 3 is a perspective view of fig. 1.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1 to 3, 1, a shell, 11, a motor, 111, a motor shaft, 12, a blade driving assembly, 121, an upper connecting rod, 122, an eccentric wheel, 123, a lower connecting rod, 124, an upper box, 125, a lower box, 13, a shell, 2, a connecting handle, 3, a blade assembly, 31, an upper blade, 32, a lower blade and 4, a gear ring.

A power direct-drive transmission mechanism of a hedge trimmer is disclosed, as shown in figures 1-3, and relates to a transmission mechanism of a landscaping hedge trimmer, which comprises a shell 1, a connecting handle 2 arranged at the rear part of the shell, a blade assembly 3 arranged at the front part of the shell, and the like, wherein the blade assembly is provided with an upper blade 31 and a lower blade 32 which are attached to each other.

The shell 1 comprises a motor 11 and a blade driving assembly 12; a shell 13 which is covered and installed is arranged outside the motor 11 for protection; the blade driving assembly 12 is composed of an upper case 124, a lower case 125, an upper connecting rod 121, an eccentric wheel 122 and a lower connecting rod 123, wherein the upper connecting rod 121, the eccentric wheel 122 and the lower connecting rod 123 are sequentially arranged from top to bottom, and the upper case 124 and the lower case 125 are buckled with each other and then are jointly sealed.

Meanwhile, the front end of the upper connecting rod 121 is connected with the upper blade 31, the front end of the lower connecting rod 123 is connected with the lower blade 32, and the eccentric wheel 122 is simultaneously matched and assembled in the round holes at the rear ends of the upper connecting rod and the lower connecting rod through the eccentric round blocks which are respectively arranged on the top surface and the bottom surface and are not positioned on the same axial lead, so that the eccentric wheel 122 is simultaneously and eccentrically connected with the upper connecting rod and the lower connecting rod.

The motor 11 is installed above the blade driving assembly 12, and specifically comprises: the motor 11 is fixedly installed on the top surface of the upper box 124 in a manner that the motor shaft 111 is inverted, and the motor shaft 111 penetrates through the upper box 124 to be directly connected and drive the eccentric wheel 122 to rotate, so that the rotation of the eccentric wheel drives the upper blade and the lower blade to relatively move through the upper connecting rod and the lower connecting rod to form cutting.

The rear end of the connecting handle 2 is inserted and fixed at the front end of an aluminum pipe of the hedge trimmer, a gear ring 4 is arranged between the front end of the connecting handle 2 and the rear part of the shell 1, and the front end of the connecting handle 2 is rotatably arranged at the rear part of the shell 1 through the gear ring 4 at a fixed angle, so that the hedge trimmer can be flexibly used at a plurality of angles.

The utility model discloses because install motor 11 in order to form the overhead mounting structure above blade drive assembly 12, so can directly connect motor shaft 111 of motor 11 and drive eccentric wheel 122 and rotate, this eccentric wheel just can drive upper and lower blade relative movement through upper and lower connecting rod and form the cutting, make the output power of motor 11 can directly export to blade drive assembly 12, that is to say the motor speed is blade functioning speed; therefore, the whole transmission output efficiency is very high, the power direct-drive mode can reduce loss, can better eliminate larger vibration or shake of the whole trimmer in the working process, prolongs the service life of the motor, and ensures the operation stability of the trimmer, thereby bringing great convenience to landscaping workers. In addition, the overhead motor is adopted, so that the structural design is more compact, and the appearance is flexible and attractive.

The above description is only an embodiment of the present invention, and those skilled in the art should understand that any structural design similar to the embodiment is included in the protection scope of the present invention.

Claims (4)

1. A power direct drive transmission mechanism of a hedge trimmer comprises a shell (1), a connecting handle (2) arranged at the rear part of the shell and a blade component (3) arranged at the front part of the shell, wherein the blade component is provided with an upper blade (31) and a lower blade (32) which are arranged in a mutually attached mode; the cutting machine is characterized in that the motor (11) is arranged above the blade driving assembly (12), and a motor shaft (111) of the motor (11) is directly connected with the eccentric wheel (122) to drive the eccentric wheel to rotate and drives the upper blade and the lower blade to relatively move to form cutting through the upper connecting rod and the lower connecting rod.

2. A hedge trimmer power direct drive transmission according to claim 1, characterized in that the blade drive assembly (12) further comprises an upper case (124) and a lower case (125) which are engaged with each other and enclose the upper connecting rod (121), the eccentric (122) and the lower connecting rod (123) together, the motor (11) is fixedly mounted on the top surface of the upper case (124) with the motor shaft (111) upside down, and the motor shaft (111) passes through the upper case (124) to be directly connected and drive the eccentric (122) to rotate.

3. A power direct drive transmission mechanism for a hedge trimmer according to claim 1, characterized in that a gear ring (4) is provided between the front end of the connecting handle (2) and the rear of the housing (1), and the front end of the connecting handle (2) is rotatably mounted at the rear of the housing (1) via the gear ring (4).

4. A hedge trimmer power direct drive transmission according to claim 1 characterized in that the motor (11) is externally provided with a housing (13) which is mounted in a covering manner.

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