CN107484495A - A kind of Chinese chive harvester - Google Patents

Abstract

The invention relates to a leek harvester, which comprises a frame equipped with traveling wheels, a reel driven by a motor to rotate is installed at the front end of the frame, and a A cutting device, a storage box is fixed on the frame behind the cutting device, and the side of the storage box close to the cutting device is an open structure. The whole machine of the present invention has a reasonable structural layout and small volume, and uses the cooperation of the reel on the frame and the cutting device for cutting, which greatly improves the harvesting efficiency, reduces labor intensity, and reduces the working time of farmers in the greenhouse, reducing damage to the body in a humid environment.

Description

A leek harvester

technical field

The invention relates to the technical field of agricultural machinery, in particular to a leek harvester suitable for low sheds.

Background technique

The planting area of leek in our country is very vast, because of its rich nutritional value and unique taste, it has always been loved by people. Moreover, leeks are planted in one year and harvested for many years, with high yields and good benefits. In some areas in northern my country, farmers are very enthusiastic about growing leeks in sheds.

However, there are more obvious problems in the harvest of leeks, mainly in:

(1) It is time-consuming and labor-intensive. Farmers need to squat in low leek sheds and cut leeks with cutting knives close to the ground. The operation is difficult and the harvesting efficiency is low. (2) The working environment is poor. Farmers have to dig into the low shed to harvest leeks, and they need to walk with their waists bowed. Moreover, the temperature and humidity in the shed are high. Farmers work in the shed for a long time, which is very harmful to the body.

With the continuous development of leek planting scale and industrialization, the above problems have seriously restricted the development of Chinese leek planting industry. Therefore, there is an urgent need for a harvesting machine at this stage to solve the problems of leeks in the harvesting of low sheds.

Contents of the invention

In view of the above problems, the present invention provides a leek harvester, which has high harvesting efficiency and can realize neat cutting and temporary storage of leeks.

The present invention is achieved through the following technical solutions. It provides a leek harvester, which includes a frame equipped with traveling wheels. A reel driven by a motor is installed at the front end of the frame. For the cutting device installed on the frame, a storage box is fixed on the frame behind the cutting device, and the side of the storage box close to the cutting device is an open structure.

When this solution is used, the reel is used to straighten and guide the leeks, and the cutting device cuts them off. With the advancement of the frame, the cut leeks pass through the open structure and then enter the storage box, which improves the harvesting efficiency. , reducing the dwelling time of vegetable growers in the greenhouse.

As a preference, the cutting device includes a fixed blade fixed on the frame and a movable blade slidingly connected to the surface of the fixed blade, and the movable blade drives it to reciprocate linearly through an eccentric crank slider mechanism. motor connection. This optimal solution adopts reciprocating cutting, which has high working reliability, good cutting quality, is suitable for harsh environments, and has a self-cleaning function for the stuck soil.

As an optimization, the motor driving the movable blade and the motor driving the reel are the same motor. The weight of the equipment is reduced, the occupied space is reduced, and the use and maintenance costs are saved.

Preferably, the blades of the fixed blade and the movable blade are both serrated. When cutting, the leeks enter the interlaced space of the sawtooth, which effectively prevents the leeks from lodging during cutting, and the cutting efficiency is higher.

Preferably, the reel includes a wheel shaft fixed to the output shaft of the motor, and a wheel body fixed to the wheel shaft, the side of the wheel body has a pentagonal structure, and the surface of the wheel body is fixed with Forks arranged at intervals along the length direction. The reel of this optimal solution has a simple structure and low failure rate. The side is set as a pentagonal structure, which is more suitable for the use of the height of the leek. At the same time, by setting the fork, it can not only move the leek, but also smooth the leek. , to ensure the flatness of the cutting.

As an optimization, it also includes a telescopic rod whose one end is fixedly connected to the frame and the other end is pivotally connected to the wheel shaft. In this optimization scheme, the wheel shaft is connected to the frame through the telescopic rod. When the extension length of the telescopic rod is adjusted, the height of the reel can be adjusted to meet the needs of different harvesting heights.

As an optimization, it also includes a sliding frame fixedly connected with the frame, the sliding frame is provided with a slideway extending in the vertical direction, a sliding block is slidingly connected in the sliding path, and one end of the sliding block is fixed. There is a limit platform larger than the size of the slideway, and a shaft sleeve is fixed on the side of the limit platform away from the slider, and a central shaft connected with the walking wheel is pierced in the shaft sleeve, and the shaft sleeve A fastening screw is pierced on the side wall; a screw rod with a nut is fixed on the other end of the slider, and a blocking piece larger than the size of the slideway is sleeved on the screw rod between the nut and the carriage. This optimization scheme realizes the adjustment of the height and width of the walking wheels through the setting of the carriage. Loosen the fastening screws and change the length of the central shaft extending into the bushing to adjust the width between the walking wheels to adapt to different row spacings. In use, by loosening the nut, the position of the slider in the slideway can be adjusted, thereby realizing the adjustment of the height of the traveling wheel and adapting to the use of different soil conditions.

As an optimization, the bottom of the storage box is provided with several soil leakage holes. By setting the soil leakage hole, the weight of the equipment is reduced, and part of the soil clods on the leeks can be missed.

As an optimization, a temporary storage platform is also provided on the frame behind the storage box, and a number of soil leakage holes are provided on the bottom surface of the temporary storage platform. When there is a large amount of leeks in the holding box, the leeks can be moved to the temporary storage platform, and they will be bundled together after harvesting, which saves harvesting time, and the soil leakage hole on the temporary storage platform provides a channel for further leakage of soil clods.

The beneficial effects of the present invention are: the structural layout of the whole machine is reasonable, the volume of the whole machine is small, the cutter and the reel share the same motor as the power source, which greatly reduces the weight of the whole machine and makes its movement more flexible; Uprighting and guiding feeding functions; the cutting device is a reciprocating cutter, which works reliably, has good cutting quality, and is suitable for harsh environments; the walking wheels can be adjusted in height and width, so as to adjust the appropriate size distance according to the specific environment to meet It meets the needs of leek harvesting; cutting with the cooperation of the reel on the frame and the cutting device greatly improves the harvesting efficiency, reduces labor intensity, reduces the working time of farmers in the greenhouse, and reduces the damage to the body caused by the humid environment.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the front view of Fig. 1;

Fig. 4 is a schematic diagram of the transmission structure of the reel in the present invention;

Fig. 5 is a side rear view of the carriage structure in the present invention;

Fig. 6 is the front view of the carriage structure in the present invention;

Fig. 7 is a sectional view of the carriage structure in the present invention;

Fig. 8 is a schematic structural view of the cutting device in the present invention;

Fig. 9 is an enlarged view of place I in Fig. 8;

As shown in the figure:

1. Reel, 2. Shift fork, 3. Axle, 4. Belt, 5. Reducer, 6. Motor, 7. Traveling wheel, 8. Battery pack, 9. Handrail, 10. Temporary storage platform, 11. Telescopic rod, 13, carriage, 14, tensioning device, 15, cutting device, 16, cutter input shaft, 17, reducer input shaft, 18, motor output shaft, 19, holding box, 121, central shaft, 122, shaft sleeve, 131, limit platform, 132, slide block, 133, slideway, 135, retaining plate, 137, nut, 138, screw rod, 151, turntable, 152, connecting rod, 153, fixed blade, 154, Moving blade, 155, slideway, 156, limit protrusion.

detailed description

In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementation modes.

A kind of leek harvesting machine as shown in Figure 1, comprises frame and four traveling wheels 7 that are installed on the frame, the frame rear end is provided with handrail 9 that is convenient to promote, and frame front end is equipped with by motor 6 driven rotation The reel 1, the reel 1 comprises the axle 3 that is affixed to the motor output shaft 18 of the motor 6, and the wheel body that is affixed to the axle 3, the side of the wheel body is a pentagonal structure, and the surface of the wheel body is fixed. There are shift forks 2 arranged at intervals along the length direction.

In order to reduce the weight, the two sides of the wheel body are short rods that are connected head to tail in turn. The short rods on both sides are connected as a whole through long rods. The wheel axle is fixedly connected as a whole through the radial rod.

In order to realize the adjustable height of the reel, the present embodiment also includes a telescopic rod 11 with one end fixedly connected to the frame and the other end connected to the axle 3. The telescopic rod 11 includes an outer tube affixed to the frame, and One end is inserted into the inner tube in the outer tube, and the other end of the inner tube is connected to the wheel shaft through a bearing. The outer tube is provided with a fastening bolt that penetrates from the outside to the inside to the surface of the inner tube. When the fastening bolt is loosened, it can be adjusted The distance between the inner tube and the outer tube can be adjusted and tightened by tightening the fastening bolts.

The bottom of the reel 1 is provided with a cutting device 15 installed on the frame, and the cutting device 15 includes a fixed blade 153 fixed on the frame and a movable blade 154 slidingly connected to the surface of the fixed blade 153, The movable blade 154 is connected with a motor that drives it to do reciprocating linear motion along the surface of the fixed blade. In order to improve the cutting effect, the blades of the fixed blade 153 and the movable blade 154 are serrated, and the reel moves the leeks into the gaps with interlaced serrations for cutting, which prevents the leeks from falling forward and makes the incision more neat.

In order to reduce costs and increase the flexibility of movement, the motor driving the movable blade is the same motor as the motor driving the reel, and the motor is a DC motor, and the battery pack 8 for powering the DC motor is fixed on the frame superior.

Specifically, a bevel gear is fixedly connected to the output shaft of the motor, and is connected with the reducer input shaft 17 of the reducer 5 through the bevel gear transmission pair, and the output shaft of the reducer transmits power to the reel through the belt 4 to realize reeling. The rotation of the grain wheel, and the tensioning device 14 that is used for tensioning belt is installed on frame. The eccentric crank slider mechanism includes a cutting knife input shaft 16 connected to the bevel gear connected to the output shaft of the motor through a bevel gear transmission pair. The center of the circle is hinged with a connecting rod 152 through a vertical hinge shaft, and the other end of the connecting rod 152 is hinged with the movable blade 154 through another vertical hinge shaft. In order to ensure that the movable blade reciprocates along a straight line, a slideway 155 extending along its moving direction is provided on the movable blade 154, and a limit protrusion 156 slidingly connected with the slideway 155 is fixed on the fixed blade. When the motor rotates, The input shaft 17 of the speed reducer and the input shaft 16 of the cutting knife are respectively driven to rotate by two bevel gear pairs, and the rotating disk 151 is driven to rotate when the input shaft 16 of the cutting knife rotates, thereby driving the moving blade to reciprocate through the connecting rod.

On the frame of cutting device 15 rears, be fixedly provided with containing case 19, also be provided with temporary storage platform 10 on the frame of containing case rear, described containing case 19 is open structure near the side of cutting device, so that The cut leeks enter, and the bottom of the storage box 19 and the bottom surface of the temporary storage platform 10 are provided with some soil leakage holes. During the process of traveling, due to the bumps, the sticky soil clods on the leeks will fall and leak out through the soil leakage holes. , in order to keep the leeks clean.

This embodiment also includes a sliding frame 13 affixed to the frame, the sliding frame 13 is provided with a slideway 133 extending in the vertical direction, and a sliding block 132 is slidingly connected in the sliding path 133. One end of the slider 132 is fixed with a limiter 131 larger than the size of the slideway, and the side of the limiter 131 away from the slider is fixed with a shaft sleeve 122, and the sleeve 122 is penetrated with the The central shaft 121 that the walking wheel 7 is connected to, the side wall of the axle sleeve 122 is pierced with fastening screws; A block piece 135 larger than the size of the slideway is sleeved on the screw rod 138 in between. Loosen the fastening screw, and by changing the length of the central shaft extending into the bushing, the width between the running wheels can be adjusted to suit the use of different row spacings. By loosening the nut, the position of the slider in the slideway can be adjusted.

When in use, first push the leek harvester to the leek field to be harvested, and adjust the height of the driving wheels according to the ground conditions of the leek field. Then, according to the actual environment requirements, fine-tune the lateral width of the machine to avoid obstacles. Then, the guide is aligned with a vegetable field, the motor is started, the operator holds the handrail to control the speed of the whole machine, and then enters the harvesting link. When harvesting, the leeks cut off by the cutter will be poured into the leek storage box under the action of the forward force of the whole machine and the reel. In order to facilitate the transfer of leeks, they can also be placed in the leek storage box. Basket, due to mechanical vibration during the movement, the soil mixed in the leeks will leak out of the leek holding basket, making the harvested leeks more tidy. When the operator observes that the leeks in the leek storage basket have been stored to a certain amount, he will place the storage basket on the temporary storage table, and then put the empty leek storage basket in the storage box, so that it can be bundled uniformly after harvesting .

Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be realized by or using existing technologies, and will not be repeated here; the above embodiments and drawings are only used to illustrate that the technical solutions of the present invention are not is a limitation of the present invention, and the present invention has been described in detail with reference to preferred embodiments, and those of ordinary skill in the art should understand that changes, modifications, Neither addition nor replacement deviates from the gist of the present invention, and should also belong to the protection scope of the claims of the present invention.

Claims (9)

1. A leek harvester, comprising a frame equipped with traveling wheels (7), characterized in that: the front end of the frame is equipped with a reel (1) driven to rotate by a motor (6), and the reel A cutting device (15) installed on the frame is arranged below the wheel (1), and a storage box (19) is fixed on the frame behind the cutting device (15), and the storage box (19) ) The side close to the cutting device is an open structure. 2. A leek harvester according to claim 1, characterized in that: the cutting device (15) includes a fixed blade fixed on the frame and a movable blade slidingly connected to the surface of the fixed blade , the movable blade is connected with a motor that drives it to do reciprocating linear motion through an eccentric crank slider mechanism. 3. A leek harvester according to claim 2, characterized in that: the motor driving the movable blade is the same motor as the motor driving the reel. 4. A leek harvester according to claim 2, characterized in that: the blades of the fixed blade and the movable blade are both serrated. 5. A leek harvester according to claim 1, characterized in that: the reel (1) includes a wheel shaft (3) fixedly connected to the output shaft (18) of the motor (6), and The wheel body fixedly connected to the wheel shaft has a side surface of a pentagonal structure, and the surface of the wheel body is fixed with shift forks (2) arranged at a certain distance along the length direction. 6 . The leek harvester according to claim 5 , further comprising a telescopic rod ( 11 ) whose one end is fixedly connected to the frame, and the other end is pivotally connected to the wheel shaft. 7. A leek harvester according to claim 1, characterized in that it further comprises a carriage (13) fixedly connected to the frame, on which there is a a slideway (133), the slideway (133) is slidably connected with a slider (132), and one end of the slider (132) is fixed with a limit platform (131) larger than the size of the slideway, A shaft sleeve (122) is fixed on the side of the limiting platform (131) away from the slider, and a central shaft (121) connected with the walking wheel (7) is pierced inside the shaft sleeve (122). Fastening screws are pierced on the side wall of the bushing (122); the other end of the slider (132) is fixed with a screw rod (138) with a nut (137), and the nut (137) is connected with the slider ( 13) A stopper (135) larger than the size of the slideway is sleeved on the screw rod (138). 8. A leek harvester according to claim 1, characterized in that: the bottom of the storage box (19) is provided with several soil leakage holes. 9. A leek harvester according to claim 8, characterized in that: a temporary storage platform (10) is provided on the frame behind the storage box, and a number of drains are provided on the bottom surface of the temporary storage platform. soil hole.