CN219228410U

CN219228410U - Front suspension lawnmower

Info

Publication number: CN219228410U
Application number: CN202320899176.XU
Authority: CN
Inventors: 夏绪荣; 颜泽方
Original assignee: Weima Agricultural Machinery Co ltd
Current assignee: Weima Agricultural Machinery Co ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-06-23
Anticipated expiration: 2033-04-20

Abstract

The utility model discloses a front-hanging lawnmower, which comprises a lawnmower body, wherein the front end of the lawnmower body is provided with a cutter bracket, the front end of the cutter bracket is provided with a cutter rest, and the cutter rest is provided with a movable cutter and a fixed cutter which are horizontally arranged, vertically distributed and mutually attached; the front end of the cutter bracket is also provided with an eccentric driving wheel, the eccentric driving wheel is connected with the cutter bracket through a supporting shaft and can rotate around the supporting shaft, and one side of the driving wheel, which is away from the supporting shaft, is provided with an eccentric shaft; the movable cutter is connected with a transmission plate, the transmission plate is provided with a connecting plate, one side of the connecting plate, which is close to the transmission wheel, is provided with a connecting shaft, the connecting shaft is connected with the eccentric shaft through a swinging rod, one end of the swinging rod is rotationally connected with the eccentric shaft, and the other end of the swinging rod is rotationally connected with the connecting shaft. The utility model has simple structure, stable and stable transmission, less damage to transmission parts, low noise and long service life.

Description

Front suspension lawnmower

Technical Field

The utility model relates to the technical field of lawnmowers, in particular to a front suspension lawnmower.

Background

The utility model provides a grass mower is a farm machinery that cuts off grass stem through mutual dislocation of the cutting edge of movable cutter and fixed cutter that laminating each other, traditional grass mower generally drives the drive wheel through drive mechanism and rotates, installs the drive post on the drive wheel is eccentric, and corresponding, is equipped with the spout on movable cutter, and the drive post stretches into this spout, and the drive wheel is in the rotation process, the drive post in proper order laminating spout both sides side and follow the both sides slip of spout in the spout in order to promote movable cutter reciprocating motion, realizes cutting grass, therefore, current grass mower relies on the drive mode of stirring very easily to make the drive post produce great wearing and tearing when the drive wheel rotates, and can produce great collision noise along with the clearance increase of drive post and spout after wearing and tearing, further increases wearing and tearing, when the rotational speed of drive wheel is higher, still can along with collision and friction messenger spout cell wall temperature rise, easily produces deformation even damage when the atress, has seriously influenced grass mower's life.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: the front suspension lawnmower solves the problems of easy abrasion, large noise and short service life of the transmission structure of the traditional lawnmower.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a front suspension lawnmower comprises a lawnmower body, wherein the front end of the lawnmower body is provided with a cutter bracket, the front end of the cutter bracket is provided with a cutter rest, and the cutter rest is provided with a movable cutter and a fixed cutter which are horizontally arranged, vertically distributed and mutually attached; the front end of the cutter bracket is also provided with an eccentric driving wheel, the eccentric driving wheel is connected with the cutter bracket through a supporting shaft and can rotate around the supporting shaft, and one side of the driving wheel, which is away from the supporting shaft, is provided with an eccentric shaft;

the movable cutter is connected with a transmission plate, the transmission plate is provided with a connecting plate, and the connecting plate and the eccentric shaft are positioned on the same side of the transmission wheel and are arranged in parallel with the transmission wheel; one side of the connecting plate, which is close to the driving wheel, is provided with a connecting shaft which is connected with the eccentric shaft through a swinging rod, wherein one end of the swinging rod is rotationally connected with the eccentric shaft, and the other end of the swinging rod is rotationally connected with the connecting shaft.

As optimization, a chute is arranged on the tool rest along the length direction of the tool rest, the movable tool is installed in the chute in a sliding fit manner, and when the driving wheel rotates, the movable tool can be driven to slide back and forth in the chute along the length direction of the tool rest through the swing rod.

As optimization, the lawnmower body further comprises a driving mechanism, the driving mechanism comprises a speed reducer, a driving wheel is arranged on an output shaft of the speed reducer, the driving wheel and the driving wheel are located on the same plane, and a driving belt is wound on the driving wheel and the driving wheel.

As optimization, the driving wheel and the driving wheel are provided with belt grooves.

As optimization, the knife rest comprises a fixed knife plate which is horizontally arranged, the fixed knife is arranged at the front end of the fixed knife plate, and the rear end of the fixed knife plate is connected with a knife bracket; a plurality of cushion blocks are distributed on the upper side of the fixed knife plate along the length direction at intervals, the front ends of the cushion blocks are provided with sliding grooves, and the rear ends of the movable knives are installed in the sliding grooves in a sliding fit mode.

Preferably, a sharpening plate is mounted on the upper side of the cushion block, and extends towards the front end of the tool rest and is close to the edge part of the movable tool.

As optimization, the connecting shaft is parallel to the axis of the eccentric shaft; two ends of the swing rod are provided with two bearing seats with parallel axes, the bearing seats are internally provided with bearings, and the two ends of the swing rod are respectively connected with the eccentric shaft and the connecting shaft through the bearings.

As optimization, the connecting shafts and the free ends of the eccentric shafts are distributed in a staggered manner.

Compared with the prior art, the application has the following beneficial effects:

according to the utility model, the swing rod is eccentrically connected with the eccentric driving wheel, the two ends of the swing rod are respectively connected with the driving wheel and the movable cutter, and when the eccentric driving wheel rotates, the swing rod drives the movable cutter to reciprocate, and as the two ends of the swing rod are respectively connected with the eccentric shaft through the rotation of the eccentric shaft and the connecting shaft, abrasion is not easy to occur, and meanwhile, the swing rod enables the movable cutter to change direction more smoothly in the reciprocating motion process, noise is not generated, and the swing rod is particularly suitable for the condition of higher rotating speed of the driving wheel. The utility model has simple structure, stable and stable transmission, less damage to transmission parts, low noise and long service life.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic side view of the tool holder of the present utility model;

FIG. 4 is a perspective view of the present utility model;

in the figure, a cutter bracket 1, a fixed cutter 2, a movable cutter 3, a driving wheel 4, a swing rod 5, a sliding groove 6, a speed reducer 7, a driving wheel 8, a driving belt 9, a fixed cutter plate 10, a cushion block 11, a pressing edge plate 12 and a connecting plate 13.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The specific implementation method comprises the following steps: see fig. 1-4.

The front suspension lawnmower comprises a lawnmower body, wherein the front end of the lawnmower body is provided with a cutter bracket 1, the front end of the cutter bracket 1 is provided with a cutter rest, the cutter bracket 1 is of a telescopic rod structure so as to conveniently adjust the front and rear positions of the cutter rest, and a movable cutter 3 and a fixed cutter 2 which are horizontally arranged, distributed up and down and mutually attached are arranged on the cutter rest; an eccentric driving wheel 4 is further arranged at the front end of the cutter bracket 1, the eccentric driving wheel 4 is connected with the cutter bracket 1 through a supporting shaft and can rotate around the supporting shaft, and an eccentric shaft is arranged at one side of the driving wheel 4, which is away from the supporting shaft.

The movable cutter 3 is connected with a transmission plate, the transmission plate is provided with a connecting plate 13, and the connecting plate 13 and the eccentric shaft are positioned on the same side of the transmission wheel 4 and are arranged in parallel with the transmission wheel 4; a connecting shaft is arranged on one side of the connecting plate 13, which is close to the driving wheel 4, and is connected with the eccentric shaft through a swinging rod 5, wherein one end of the swinging rod 5 is rotationally connected with the eccentric shaft, and the other end of the swinging rod 5 is rotationally connected with the connecting shaft. Specifically, the connecting shaft is parallel to the axial lead of the eccentric shaft; two ends of the swing rod 5 are provided with two bearing seats with parallel axes, bearings are arranged in the bearing seats, and two ends of the swing rod 5 are respectively connected with the eccentric shaft and the connecting shaft through the bearings. The connecting shafts and the free ends of the eccentric shafts are distributed in a staggered manner, namely, the projections of the connecting shafts and the eccentric shafts in a plane parallel to the axis line of the connecting shafts and the eccentric shafts are overlapped, so that the connecting shafts can move along a straight line when the eccentric shafts eccentrically rotate along with the eccentric driving wheels 4. Through this eccentric drive mechanism, the both ends of pendulum rod 5 are all through bearing rotation connection, are difficult for appearing wearing and tearing to movable cutter 3 is at reciprocating motion in-process, and the switching-over is more steady, does not have friction contact structure, is difficult for producing noise and wearing and tearing, especially to under the high-speed operating mode, long service life.

In order to ensure the moving stability of the movable cutter 3, a chute 6 is arranged on the cutter rest along the length direction of the cutter rest, the movable cutter 3 is installed in the chute 6 in a sliding fit manner, and when the driving wheel 4 rotates, the movable cutter 3 can be driven to slide back and forth in the chute 6 along the length direction of the cutter rest through the swing rod 5. Specifically, the tool rest comprises a fixed tool plate 10 which is horizontally arranged, and the transmission plate is fixed on the fixed tool plate 10. The fixed cutter 2 is arranged at the front end of the fixed cutter plate 10, and the rear end of the fixed cutter plate 10 is connected with the cutter bracket 1; a plurality of cushion blocks 11 are distributed on the upper side of the fixed cutter plate 10 at intervals along the length direction, the front ends of the cushion blocks 11 are provided with sliding grooves 6, and the rear ends of the movable cutters 3 are installed in the sliding grooves 6 in a sliding fit mode. The upper side of the cushion block 11 is provided with a pressure-edge plate 12, the pressure-edge plate 12 extends towards the front end of the tool rest and is close to the edge part of the movable tool 3, and the pressure-edge plate 12 can ensure that the movable tool 3 is tightly attached to the fixed tool 2 and improves the shearing performance of the movable tool.

In addition, in this embodiment, the lawnmower body further includes a driving mechanism, where the driving mechanism includes a speed reducer 7, or may not reduce speed by the speed reducer 7, in this embodiment, a driving wheel 8 is disposed on an output shaft of the speed reducer 7, and the driving wheel 8 and the eccentric driving wheel 4 are located on the same plane, belt grooves are disposed on the driving wheel 8 and the driving wheel 4, and a driving belt 9 is wound on the driving wheel 8 and the driving wheel 4.

In this embodiment, the lawnmower body and the eccentric driving wheel 4 are driven by the driving belt 9, and the driving wheel 4 and the extending direction of the cutter support 1 are arranged in parallel, in practical application, the driving wheel 4 may also be arranged perpendicular to the extending direction of the cutter support 1, and driven by a gear or directly driven by a driving shaft, and correspondingly, the connecting shaft and the eccentric shaft are all arranged along the parallel direction of the supporting shaft, which can be specifically set according to practical needs.

While embodiments of the present utility model have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents, and thus the embodiments of the utility model are to be considered illustrative of the utility model and not limited in any way.

Claims

1. A front suspension lawnmower comprises a lawnmower body, wherein the front end of the lawnmower body is provided with a cutter bracket, the front end of the cutter bracket is provided with a cutter rest, and the cutter rest is provided with a movable cutter and a fixed cutter which are horizontally arranged, vertically distributed and mutually attached; the front end of the cutter bracket is also provided with an eccentric driving wheel, the eccentric driving wheel is connected with the cutter bracket through a supporting shaft and can rotate around the supporting shaft, and one side of the driving wheel, which is away from the supporting shaft, is provided with an eccentric shaft;

2. The front suspension lawnmower of claim 1, wherein the lawnmower body further comprises a driving mechanism, the driving mechanism comprises a speed reducer, a driving wheel is arranged on an output shaft of the speed reducer, the driving wheel and the driving wheel are located on the same plane, and a driving belt is wound on the driving wheel and the driving wheel.

3. A front suspension lawnmower as claimed in claim 2 wherein the drive wheel and the drive wheel are provided with belt grooves.

4. A front suspension lawnmower as claimed in claim 1, wherein the connecting shaft is parallel to the axis of the eccentric shaft; two ends of the swing rod are provided with two bearing seats with parallel axes, the bearing seats are internally provided with bearings, and the two ends of the swing rod are respectively connected with the eccentric shaft and the connecting shaft through the bearings.

5. The front suspension lawnmower of claim 4, wherein the connecting shaft is staggered with respect to the free end of the eccentric shaft.

6. The front suspension lawnmower of claim 1, wherein a chute is formed in the blade carrier along a length direction thereof, the movable cutter is slidably mounted in the chute, and when the driving wheel rotates, the movable cutter can be driven by the swing rod to reciprocate in the chute along the length direction of the blade carrier.

7. The front suspension lawnmower of claim 6, wherein the blade carrier comprises a horizontally disposed stationary blade, the stationary blade being mounted at a front end of the stationary blade, a rear end of the stationary blade being connected to a blade support; a plurality of cushion blocks are distributed on the upper side of the fixed knife plate along the length direction at intervals, the front ends of the cushion blocks are provided with sliding grooves, and the rear ends of the movable knives are installed in the sliding grooves in a sliding fit mode.

8. The front suspension lawnmower of claim 7, wherein a sharpening plate is mounted on the upper side of the spacer, the sharpening plate extending toward the front end of the blade holder and being adjacent the edge of the movable cutter.