CN206389778U - Weeder - Google Patents

Abstract

The utility model discloses a weeding machine, which comprises a machine body and a walking wheel installed under the machine body. A knife rest is arranged below the front end of the machine body. The front end of the knife rest is fixedly connected with a shovel blade extending obliquely downward. Both sides are equipped with a knife rest swing mechanism and a knife rest drive mechanism. The knife rest swing mechanism includes at least two rockers spaced apart along the front and rear directions and arranged in parallel. The rack drive mechanism includes a crank-link structure. The crank-link mechanism includes a crank that is rotatably connected to the machine body and a connecting rod that is hingedly connected to the other end of the crank. The other end of the connecting rod is hingedly connected to the tool holder and can drive the tool holder to swing. The body is also fixedly connected with a power device and can drive the crank to rotate. The utility model has the advantages of simple structure and convenient use, and can destroy the roots of weeds so that the weeds are not easy to re-grow, and at the same time, the damage to soil form can be reduced.

Description

weeder

technical field

The utility model relates to a weeding device, in particular to a weeding machine.

Background technique

At present, the main methods of weeding include spraying herbicides, manual weeding and using herbicides to weed. Because herbicides contain a large amount of harmful substances, which will cause damage to the geology, artificial weeding has low efficiency and high cost, so weeding machines are more widely used for weeding. The existing weeder is mainly composed of a body part, a transmission part and a weeding part, wherein the weeding part includes a main shaft connected to the transmission part and a cutter head for weeding, and the power is transmitted to the cutter head through the main shaft to make the cutter head rotate. Thereby realizing the function of weeding. But this kind of weeder only cuts off the stems of weeds above the soil, and the roots still remain in the soil, and the weeds after cutting will germinate and grow rapidly, so the purpose of radical cure cannot be achieved. In addition, there is also a rotary tiller type row weeding machine. Although this weeding machine can destroy the roots of weeds in the soil, it will seriously damage the shape of the soil.

Utility model content

Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is: how to provide a weeder that can destroy the roots of weeds and reduce the damage to the soil form.

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

A weeder, comprising a machine body and traveling wheels installed under the machine body, characterized in that: a knife rest is arranged below the front end of the machine body, the front end of the knife rest is fixedly connected with a shovel blade extending obliquely downward, the left and right sides of the knife rest Both sides are equipped with a knife rest swing mechanism and a knife rest drive mechanism. The knife rest swing mechanism includes at least two rockers spaced apart along the front and rear directions and arranged in parallel. The two ends of the rocker are respectively hingedly connected to the body and the knife rest. The driving mechanism includes a crank-link structure. The crank-link mechanism includes a crank that is rotatably connected to the machine body and a connecting rod that is hingedly connected to the other end of the crank. , the body is also fixedly connected with a power device and can drive the crank to rotate. When the knife rest is at the lowest point of the swing position, the position of the shovel blade is lower than the lowest point of the road wheel.

In the utility model, the crank, the connecting rod and the rocker are combined to form a crank-rocker mechanism. When the power device drives the crank to rotate, the connecting rod can drive the rocker to swing back and forth, and then control the shovel blade on the tool holder to move forward and backward. swing back and forth. During the swinging process of the tool holder from back to front, the shovel blade first swings from the highest point to the lowest point. During this process, the shovel blade shovels into the soil, and the shovel blade continues to swing from the lowest point to the highest point. During this process, the shovel blade will scoop up the floating soil on the soil surface, and at the same time cut off the roots of the weeds in the soil. Afterwards, the shovel blade swings backward again, gets back to the rear end, repeats the swing, and performs the weeding function in a cycle. In this way, only the floating soil on the soil surface is removed, which reduces the damage to the soil form, and at the same time destroys the roots of the weeds, reducing the growth rate of the weeds.

As an optimization, the body includes an outer shell and two racks spaced left and right and extending along the front and rear directions. The feeding device includes a rotating shaft located between the two racks and above the knife holder. The rotating shaft extends along the left and right directions. The two ends of the rotating shaft are respectively connected to the two racks in rotation. Multiple rows of grass winding ropes, each row of grass winding ropes includes a plurality of ropes fixed on the rotating shaft at intervals along the axial direction of the rotating shaft, the length of the ropes is less than the distance from the rotating shaft to the knife rest;

The shell is also provided with a grass-breaking device, which includes a cylindrical shell located behind the weed feeding device and arranged along the left and right directions. The two ends of the cylindrical shell are fixedly connected to the shell, The body is coaxially provided with a cutter shaft connected to it in rotation, and a plurality of grass cutting knives for cutting weeds are installed on the cutter shaft. The bottom of the shaped housing is provided with a strip-shaped discharge port along its axial direction, and a belt conveying device is also provided in the housing and between the weed feeding device and the grass breaking device. The conveying shaft is set and extends along the left and right directions. The belt is wound on the two conveying shafts. The two ends of the two conveying shafts are respectively connected to the shell by rotation. Corresponding to the rear end of the weed feeding device, the belt is located outside the swivel range of the reel rope;

The power device is respectively connected with the crank, the rotating shaft, the knife shaft and the conveying shaft through a transmission mechanism.

During the weeding process of the shovel blade, the weed feeding device can transport the weeds to the rear, wherein the rotating shaft rotates toward the rear, and the weed rope on it can rotate with the rotating shaft, and the rope will rotate during the rotation. Acts on the eradicated weeds and brings them to the rear. When the weeds are drawn to the rear, part of the soil clods at the roots of the weeds will fall off, further reducing the damage to the soil form. The weeds are drawn into the rear belt conveying device, and the belt conveys the weeds to the strip-shaped feeding port on the cylindrical casing of the grass-cutting device, and the knife shaft in the cylindrical casing rotates to make the grass-cutting knife The grass is shredded, and the shredded grass clippings fall out from the strip outlet to the ground, and can be used as fertilizer after decay to improve soil fertility.

As an optimization, a soil block crushing device is also provided in the housing, and the soil block crushing device includes a connecting plate located between the weed feeding device and the belt conveying device, and the left and right ends of the connecting plate are respectively fixedly connected to On the shell, the rear end of the connecting plate corresponds to the input end of the belt, the front end of the connecting plate is arranged obliquely upward and corresponds to the rear end of the weed feeding device, and the front end of the connecting plate is fixedly connected at intervals along the left and right directions There are a plurality of spikes, the spikes extend along the inclined direction of the connecting plate and extend into the rotation range of the coiled grass rope, and the rope can pass between two adjacent spikes. When the weeds are rolled up by the feeding device, a part of the soil clods are entangled with the roots of the weeds and cannot fall. A connecting plate is set between the weed feeding device and the belt conveying device, and the front end of the connecting plate is provided with spikes. After the weeds are drawn in, the roots of the weeds will be poked on the spikes, and then entangled with the roots of the weeds. The clods of soil are removed, and finally the weeds are inclined down to the belt conveyor along the connecting plate.

To sum up, the beneficial effect of the utility model lies in: the utility model is simple in structure, easy to use, can destroy the roots of weeds, make it difficult for weeds to grow again, and at the same time reduce the damage to the soil form.

Description of drawings

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is a three-dimensional view of the utility model;

Fig. 2 is a three-dimensional view of the internal structure of the utility model.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 and 2, the weeder in this specific embodiment includes a body and a walking wheel 1 installed below the body, a knife rest 2 is arranged below the front end of the body, and the front end of the knife rest 2 is fixedly connected to The shovel blade 3 extending obliquely below, the left and right sides of the knife rest 2 are provided with a knife rest swinging mechanism and a knife rest driving mechanism, and the knife rest swinging mechanism includes at least two rocking bars 4 spaced along the front and rear directions and arranged in parallel. The two ends of 4 are hingedly connected to the machine body and the tool holder 2 respectively, the tool holder driving mechanism includes a crank connecting rod structure, and the crank connecting rod mechanism includes a crank 5 rotatably connected to the body and a connecting rod 6 hingedly connected to the other end of the crank 5 , the other end of the connecting rod 6 is hingedly connected to the knife rest 2 and can drive the knife rest 2 to perform swinging motion. The body is also fixedly connected with a power device 7 and can drive the crank 5 to rotate. When the knife rest 2 is at the lowest point of the swing position , the position of the shovel blade 3 is lower than the lowest point of the road wheel 1.

In this specific embodiment, the body includes a casing 8 and two frames 9 spaced left and right and extending along the front and rear directions. The left and right ends of the casing 8 are fixedly connected to the two frames 9 respectively. The weed feeding device, the weed feeding device includes a rotating shaft 10 located between the two frames 9 and above the knife rest 2, the rotating shaft 10 extends along the left and right direction, and the two ends of the rotating shaft 10 are respectively connected to two On the frame 9, on the rotating shaft 10, a plurality of rows of grass ropes are arranged at intervals along its circumference. 10 to the distance length of the knife rest 2;

The shell 8 is also provided with a grass-breaking device, which includes a cylindrical housing 12 located behind the weed feeding device and arranged along the left and right directions, and the two ends of the cylindrical shell 12 are respectively fixedly connected to the shell 8 , the cylindrical housing 12 is coaxially provided with a cutter shaft that is rotatably connected with it, and a plurality of blades for chopping weeds are installed on the cutter shaft, and the front portion of the cylindrical housing 12 is provided with a A strip-shaped material inlet, the bottom of the cylindrical housing 12 is provided with a strip-shaped material outlet along its axial direction, a belt conveyor is also provided in the shell 8 and between the weed feeding device and the grass-breaking device, and the belt conveys The device comprises a belt 13 and two conveying shafts arranged at intervals along the front and rear and extending along the left and right directions. The belt 13 is wound on the two conveying shafts. Corresponding to the strip-shaped feed inlet, the input end of the belt 13 corresponds to the rear end of the weed feeding device, and the belt 13 is located outside the rotation range of the grass rope;

The power device 7 is respectively connected to the crank 5, the rotating shaft 10, the knife shaft and the delivery shaft through a transmission mechanism.

In this specific embodiment, a soil block crushing device is also provided in the housing 8, and the soil block crushing device includes a connecting plate 14 located between the weed feeding device and the belt conveying device, and the left and right sides of the connecting plate 14 The two ends are respectively fixedly connected to the shell 8, the rear end of the connecting plate 14 corresponds to the input end of the belt 13, the front end of the connecting plate 14 is arranged obliquely upwards and corresponds to the rear end of the weed feeding device, The front end of connecting plate 14 is fixedly connected with a plurality of inserting nails 15 at intervals along the left-right direction, and inserting nails 15 extends along the inclined direction of connecting plate 14 and stretches into the range of rotation of the coiled grass rope. Pass between two insert nails 15.

In the process of specific implementation, there are pressure rollers 16 extending along the left and right directions at the rear of the machine body, and the two ends of the pressure rollers 16 are respectively connected to the connecting rods 17 in rotation, and the other ends of the connecting rods 17 are respectively hingedly connected to the two machine frames. 9 on. The pressure roller 16 is at the rear of the body, and can re-roll the weeds after the front chopping and the floating soil shoveled out, restore the soil surface form as much as possible, and reduce the damage to the soil form in the weeding process.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described with reference to the preferred embodiment of the utility model, those of ordinary skill in the art should understand that, Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (3)

1. A weeding machine, comprising a body and a walking wheel installed below the body, characterized in that: a knife rest is arranged below the front end of the body, the front end of the knife rest is fixedly connected with a shovel blade extending obliquely downward, the blade of the knife rest Both left and right sides are provided with a knife rest swing mechanism and a knife rest drive mechanism. The knife rest swing mechanism includes at least two rockers spaced apart along the front and rear directions and arranged in parallel. The two ends of the rocker are respectively hingedly connected to the body and the knife rest. The knife rest drive mechanism includes a crank-link structure, and the crank-link mechanism includes a crank that is rotatably connected to the body and a connecting rod that is hingedly connected to the other end of the crank. The other end of the connecting rod is hingedly connected to the knife rest and can drive the knife rest For swinging motion, the body is also fixedly connected with a power device and can drive the crank to rotate. When the knife rest is at the lowest point of the swinging position, the position of the shovel blade is lower than the lowest point of the road wheel. 2. The weeding machine according to claim 1, characterized in that: the body comprises a housing and two frames spaced from left to right and extending along the front and rear directions, the left and right ends of the housing are respectively fixedly connected to the two frames , the housing is provided with a weed feeding device, the weed feeding device includes a rotating shaft located between the two racks and above the tool rest, the rotating shaft extends along the left and right directions, and the two ends of the rotating shaft are respectively connected to two On the frame, the rotating shaft is provided with multiple rows of grass winding ropes at intervals along its circumference, and each row of grass winding ropes includes a plurality of ropes fixed on the rotating shaft at intervals along the axial direction of the rotating shaft, and the length of the ropes is less than the distance from the rotating shaft to the tool holder ; The shell is also provided with a grass-breaking device, which includes a cylindrical shell located behind the weed feeding device and arranged along the left and right directions. The two ends of the cylindrical shell are fixedly connected to the shell, The body is coaxially provided with a cutter shaft connected to it in rotation, and a plurality of grass cutting knives for cutting weeds are installed on the cutter shaft. The bottom of the shaped housing is provided with a strip-shaped discharge port along its axial direction, and a belt conveying device is also provided in the housing and between the weed feeding device and the grass breaking device. The conveying shaft is set and extends along the left and right directions. The belt is wound on the two conveying shafts. The two ends of the two conveying shafts are respectively connected to the shell by rotation. Corresponding to the rear end of the weed feeding device, the belt is located outside the swivel range of the reel rope; The power device is respectively connected with the crank, the rotating shaft, the knife shaft and the conveying shaft through a transmission mechanism. 3. The weeding machine according to claim 2, characterized in that: a soil block crushing device is also provided in the housing, and the soil block crushing device includes a belt conveyor located between the weed feeding device and the belt conveying device. The connecting plate, the left and right ends of the connecting plate are respectively fixedly connected to the shell, the rear end of the connecting plate corresponds to the input end of the belt, the front end of the connecting plate is arranged obliquely upward and is connected to the rear end of the weed feeding device Correspondingly, the front end of the connecting plate is fixedly connected with a plurality of inserting nails at intervals along the left and right directions, and the inserting nails are extended along the inclined direction of the connecting plate and extend into the rotation range of the rolling rope. between the nails.