CN210987047U

CN210987047U - Potato combine harvester

Info

Publication number: CN210987047U
Application number: CN201921272680.7U
Authority: CN
Inventors: 杨少楠
Original assignee: Hohhot Boyang Renewable Energy Co ltd
Current assignee: Hohhot Boyang Renewable Energy Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-07-14
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses a potato combine harvester, include main frame, digger blade part, mounted frame, transmission case, accompany hoist mechanism, preceding hoist mechanism, back conveying mechanism, separation potato seedling mechanism. Along with hoist mechanism parallel bit in the prerequisite mechanism top that rises, rubber scraper installs on conveying chain II to along with II movements of conveying chain, because the prerequisite rises mechanism conveying chain I and follows II rotation direction of hoist mechanism conveying chain opposite, so, the prerequisite rises mechanism conveying chain I top and follows II below directions of travel of hoist mechanism conveying chain and all upward movements, supports the backward conveying mechanism of potato simultaneously. This potato combine adopts steady formula conveying chain mechanism, and the significantly reduced improves the potato commodity rate to potato epidermis damage, and has improved the life of conveying chain and complete machine, can once only accomplish excavation, soil and potato separation, carry, load (bag) process, realizes potato results combined operation.

Description

Potato combine harvester

Technical Field

The utility model relates to a potato harvester, in particular to a combined harvester in a potato field harvesting machine.

Background

Potatoes are important grain crops, vegetable crops, feed crops and also important industrial raw material crops. The development of potato production has great significance for guaranteeing grain safety and promoting farmer income increase. The potato harvesting is an operation link which has high labor intensity and directly influences the storage, and is also the technical difficulty which influences the manual-mechanical transformation of the potato production. In recent years, due to urgent need of potato production, a plurality of scientific research units and production enterprises develop potato segmental harvesting machines and combined harvesting machines in China successively. The potato digging machine is divided into a lateral output mode and a rear output mode according to a laying mode, the lateral output mode can finish potato digging, separating and lateral laying operation at one time, and two ridges of potatoes can be picked up after being harvested by one ridge of potatoes. The later output potato digging is to directly throw the potatoes dug up behind the machine, so as to be convenient for manual picking. Practices prove that the potato harvesting efficiency is greatly improved by the potato digging, picking and segmented harvesting machine and the combined harvesting machine.

However, the quality of seed potatoes and the appearance and the internal quality of commercial potatoes are seriously reduced due to the tuber damage problem in the mechanical potato harvesting process, and the commercial department puts high requirements on the mechanical harvesting quality and the storage condition of fresh potato finished products because the collision resistance of domestic potato varieties is low, the fresh-eating proportion of the harvested potatoes is high, and the production and processing proportion is low. Most of the existing potato diggers and combine harvesters adopt a multi-stage shaking type chain separating device to reduce the impurity rate of potatoes. However, the skins are easily damaged by the collision and impact between the potatoes and the conveying rods of the separating device and the mutual collision between the potatoes and tubers during the harvesting process, and the more the separation stages are, the more the skins are damaged. Greatly reduces the qualification rate and the quality of the product and can not meet the requirements of the storage conditions of the fresh potatoes. The quality of primary processed potato products and the potato instant food industry are influenced, so that the economic benefit and the social benefit of the whole potato processing industry are influenced, huge economic loss is caused to the potato industry, and the healthy development of potato harvest mechanization is also seriously restricted. Therefore, the research on solving the problem of potato tuber damage and improving the potato harvester are of great significance for ensuring the continuous, efficient and healthy development of the potato industry. The research is based on the physical characteristics of potato tubers, combines factors such as structures of key components in the processes of separating and conveying the potatoes of the potato harvester, and the like, carries out theoretical analysis on the operation mechanism of conveying and separating the potatoes aiming at the problem that the phenomenon of damaging the potatoes is serious such as peeling, extruding and the like of the existing secondary conveying and separating device for the potatoes, effectively reduces the collision and damage to the potatoes, and develops a novel potato combine harvester which can complete the working procedures of digging, separating the potatoes, conveying and loading (bagging) at one time.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a potato combine harvester. The combined harvester can complete the working procedures of digging, soil and potato separation, conveying and loading (bagging) at one time, and has the advantages of simple structure, simple and convenient use and operation and easy processing and manufacturing.

The technical problem of the utility model is solved by following scheme: a potato combine harvester comprises a main frame, a digging shovel component, a cutting disc, a suspension bracket, a transmission case, a connecting frame, an accompanying lifting mechanism, a middle chain wheel III, a rear conveying mechanism, a connecting disc lifting oil cylinder, a connecting disc for containing potato bags, a pedal, a traveling wheel, a front lifting mechanism and a potato seedling separating mechanism.

The cutting disc is arranged at the front end of the main frame and is arranged on two sides. The soil cutting machine has the functions of cutting soil and reducing digging into soil when the machine moves forward.

The transmission case is arranged on the main frame and is positioned in front of the main frame. One side of the transmission case is provided with a small transmission case belt pulley and is connected with a large main transmission belt pulley through a main transmission belt.

The digging shovel component comprises a digging main shovel, an auxiliary digging shovel, a digging shovel connecting plate, an angle adjusting bolt nut and a front bolt nut, the digging shovel component is arranged at the front end of the main frame and is used for digging potatoes in soil along with the forward movement of the machine and sending the potatoes into the front lifting mechanism, three holes are formed in the side face of the main frame, the digging main shovel and the auxiliary digging shovel can change the soil-entering angle through the positions of the angle adjusting bolt nut in the holes, the digging main shovel is made of manganese steel, the included angle of a cutting edge of the digging main shovel is 10-15 degrees (β), and the thickness of the digging main shovel is 15-25 mm (U).

The accompanying lifting mechanism consists of a bearing seat support, a bearing seat, an accompanying lifting mechanism transmission chain wheel, a driving shaft II, a connecting rod, a fixed support, a movable support, an adjusting screw nut, a floating pulley support, a driving chain wheel II, a driven chain wheel II, a conveying chain II and a rubber scraper. The potato lifting mechanism has the function of supporting the potatoes in the conveying chain I of the front lifting mechanism to move upwards and preventing the potatoes from rolling downwards. The fixed bolster passes through the connecting rod and is connected with drive shaft II, movable support one end passes through the connecting rod and is connected with driven shaft II, and the other end cup joints with the fixed bolster, passes through adjusting bolt nut between fixed bolster and movable support and connects.

The accompanying lifting mechanism is connected with the bearing seat support through a bearing seat, the bearing seat support is fixed at the upper end of the main frame through a fixing bolt and a fixing nut, and the accompanying lifting mechanism is located above the front lifting mechanism in parallel. The rubber scraper is arranged on the conveying chain II and moves along with the conveying chain II, and the distance between the end part of the rubber scraper and the grid bars of the conveying chain II is 10-20 mm (S). Because the rotation directions of the first front lifting mechanism conveying chain and the second accompanying lifting mechanism conveying chain are opposite, the advancing directions of the upper part of the first front lifting mechanism conveying chain and the lower part of the second accompanying lifting mechanism conveying chain move upwards, the running speeds are the same, and when the potatoes are supported by the rubber scraper to move upwards.

The middle part of the bearing seat support is provided with an upper adjusting bolt nut and a lower adjusting bolt nut, three holes are processed on the side wall of the corresponding main frame, and the height of the upper and lower adjusting bolt nuts along with the lifting mechanism can be adjusted by adjusting the positions of the upper and lower adjusting bolt nuts in the holes so as to adapt to the height of the harvested potato seedlings.

The floating pulley support is composed of a connecting arm, a connecting plate, a rubber roller, a tensioning spring, a groove-shaped slideway, a tension spring bolt nut and a support. The function of the device is to realize the floating of the support accompanied with the other end of the lifting mechanism, thereby facilitating the up-and-down adjustment of the whole mechanism and the tension of the conveying chain. One end of the connecting plate is welded on the side face of the movable support, the other end of the connecting plate is fixed with the connecting arm through a bolt and a nut, and a rubber roller is arranged on the lower side of the outer end of the connecting arm. The rubber idler wheel is tightly attached to a groove-shaped slideway on the outer side of the main frame, a tension spring is mounted at the end part of the outer end of the connecting arm, a tension bolt nut is mounted at the lower end of the tension spring, and the other end of the tension bolt nut is connected with the support.

The front lifting mechanism comprises a main driving chain wheel, a driving shaft, a driving chain wheel I, a conveying chain I, a driven chain wheel I, a drag chain wheel and a main driving large belt wheel, the front lifting mechanism is installed at the front end of the main frame and is located behind the digging shovel component, the front lifting mechanism is used for stably lifting potatoes dug by the digging main shovel upwards, conveying the potatoes to the rear conveying mechanism and separating soil blocks in the conveying process, the main driving large belt wheel is installed on one side of the driving shaft, the driving chain wheel I is installed in the middle of the driving shaft, the main driving chain wheel, a middle chain wheel IV and a middle chain wheel III are sequentially installed on the other side of the driving shaft, and the included angle between the front lifting mechanism and the ground is 55-60 degrees (α.

The conveying chain I consists of a chain, fine grid bars and coarse grid bars, and the diameter of the fine grid bars is 12mm to E

The diameter of the thick grid is

The center distance of the adjacent grid bars is 50 mm-55 mm (L1);

the rear conveying mechanism consists of a rear conveying mechanism frame, a driving shaft III, a rear conveying mechanism transmission chain wheel, a rear conveying mechanism small belt wheel, a small belt wheel support, a rear conveying mechanism large belt wheel, a driving chain wheel III, a conveying chain III, a driven chain wheel III, a pocket hitching device, a rubber baffle, a telescopic support and a transmission belt. The rear conveying mechanism is arranged at the rear end of the front lifting mechanism. The small belt pulley bracket is arranged on one side of the side plate of the rear conveying mechanism, a small shaft is arranged on the small belt pulley bracket, and a rear conveying mechanism transmission chain wheel and a rear conveying mechanism small belt pulley are respectively arranged at two ends of the shaft. The rear conveying mechanism large belt pulley is arranged on one side of the driving shaft III, is positioned behind the rear conveying mechanism, is connected through a transmission belt, and is coaxially provided with a driving chain wheel III.

The 4 pocket hitches are 2 retractable and 2 fixed. Wherein, 2 fixed pocket hitches are installed on the rear frame of rear conveying mechanism, 2 retractable pocket hitches are installed on the expansion bracket, and the effect is to hitch and hold potato bags, be convenient for accept the potato that rear conveying mechanism carried, through adjusting the telescopic bracket adjusting bolt installed on the telescopic bracket, the distance of pocket hitches around adjustable.

The conveying chain III consists of a chain and grid bars, and the diameter of each grid bar is

The center distance between the adjacent grids is 45 mm-50 mm (L2).

The upper end of the potato bag containing receiving disc is hinged to the rear conveying mechanism support, and the side face of the potato bag containing receiving disc is hinged to the receiving disc lifting oil cylinder. The potato bag containing tray is used for receiving the potato bags.

The potato seedling separating mechanism comprises a seedling separating roller, a seedling separating roller bearing support plate, a tensioning spring II, a seedling separating roller adjusting bolt nut and a shifting lever, wherein the seedling separating roller is positioned below the outlet end of the front lifting mechanism, one end of the seedling separating roller is provided with a seedling separating roller driving chain wheel which is used for gripping together with a front lifting mechanism conveying chain to strip potato seedlings from the potatoes and discharging the potato seedlings out of the machine, two ends of an angle steel support are fixed above a main frame, the shifting lever support is welded on the angle steel support, the shifting lever is hinged with the shifting lever support through a bolt nut and is connected with a pressure spring, the lower end of the shifting lever abuts against the front lifting mechanism conveying chain I under the action of the pressure spring, the shifting lever is used for intercepting the potato seedlings conveyed above the front lifting mechanism conveying chain I and conveying the potato seedlings into a gap below the seedling separating roller and the front lifting mechanism conveying chain I, the potato seedlings are relatively rubbed off the machine under the action of the pressure spring, the seedling separating roller driving chain wheel is arranged on the seedling separating roller bearing support plate through a bearing support plate which is L, the potato seedlings separating roller bearing support plate is connected with the seedling separating roller adjusting bolt nut through a tensioning spring, and the seedling separating roller adjusting bolt nut and the other end of the seedling separating roller are connected with the seedling separating roller.

The utility model has the advantages that: 1. the potato combine harvester can complete the working procedures of digging, soil and potato separation, conveying and loading (bagging) at one time, realize the potato harvesting combined operation and reduce the grinding times of machines on the land; 2. the potato combine harvester adopts the stable conveying chain mechanism, changes the conventional shaking type conveying chain mechanism, greatly reduces the damage to the potato skin and improves the commodity rate of potatoes; the service life of the conveying chain and the whole machine is prolonged; 3. compared with the potato harvester with the same production performance, the potato combine harvester adopts the large-angle front lifting mechanism, greatly shortens the length of the machine tool, and improves the maneuvering performance of the machine tool operation; 4. the machine has simple structure, is suitable for being popularized by small and medium-sized agricultural machinery manufacturers and is convenient for batch production.

Drawings

FIG. 1 is a schematic view of a potato combine harvester;

FIG. 2 is a side view of a potato combine;

FIG. 3 is a front view of a potato combine;

FIG. 4 is a schematic view of a shovel component configuration;

FIG. 5 is a view taken along the line A in FIG. 4;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 7 is a schematic view of a follower support structure associated with the lift mechanism;

FIG. 8 is a side view of the lift mechanism;

FIG. 9 is a view in the direction of C in FIG. 8;

FIG. 10 is a schematic view of the accompanying and front lifting mechanisms;

FIG. 11 is an enlarged view of portion D of FIG. 10;

FIG. 12 is a schematic view of the rear transport mechanism;

FIG. 13 is a top view of the rear transport mechanism;

FIG. 14 is a schematic view of a lift mechanism conveyor chain;

FIG. 15 is a schematic illustration of a rear conveyor transport chain;

FIG. 16 is a schematic view of a potato seedling separating mechanism and a driving sprocket;

FIG. 17 is a schematic view of the position of the seedling separating roller;

FIG. 18 is a side view of the potato seedling separating mechanism and the front lifting mechanism conveying chain;

FIG. 19 is an enlarged view of portion G of FIG. 18;

fig. 20 is an enlarged view of a portion E in fig. 2.

Description of reference numerals:

1 main frame, 2 digging shovel parts, 3 cutting disc, 4 suspension bracket, 5 transmission case, 6 connecting frame, 7 accompanying lifting mechanism, 8 accompanying lifting mechanism chain wheel, 9 driving shaft, 10 potato seedling separating mechanism, 11 main driving chain wheel, 12 intermediate chain wheel III, 13 seedling separating roller driving chain wheel, 14 seedling separating roller chain wheel, 15 rear conveying mechanism driving chain wheel, 16 rear conveying mechanism, 17 rear conveying mechanism large belt wheel, 18 rear conveying mechanism bracket, 19 connecting plate lifting oil cylinder, 20 potato bag connecting plate, 21 pedal, 22 walking wheel, 23 bearing seat bracket, 24 main driving large belt wheel, 25 front lifting mechanism, 26, transmission case small belt wheel, 27 intermediate chain wheel I, 28 intermediate chain wheel II, 29 intermediate chain wheel IV, 30 rear conveying mechanism small belt wheel, 31 main driving belt, 32 sliding plate

2-1 digging main shovel, 2-2 digging shovel connecting plate, 2-3 auxiliary digging shovel, 2-4 digging shovel angle adjusting bolt 2-5 front bolt nut

7-1 driving shaft II, 7-2 rubber scraper, 7-3 conveying chain II, 7-4 connecting rod, 7-5 fixed bracket, 7-6 movable bracket, 7-7 adjusting bolt nut, 7-8 floating pulley bracket, 7-9 bearing seat, 7-10 driving chain wheel II, 7-11 driven chain wheel II, 7-12 connecting arm, 7-13 rubber roller, 7-14 tensioning spring, 7-15 groove-shaped slideway, 7-16 tension spring adjusting bolt nut, 7-17 support, 7-18 connecting plate, 7-19 driven shaft II, 7-20 up-down adjusting bolt nut, 7-21 fixing bolt nut

16-1 rear conveying mechanism rack, 16-2 conveying chain III, 16-3 pocket hitching device, 16-4 telescopic bracket, 16-5 telescopic bracket adjusting bolt, 16-6 rubber baffle, 16-7 small belt pulley bracket, 16-8 driving belt, 16-9 driving chain wheel III, 16-10 driven chain wheel III, 16-11 driving shaft III, 16-12 small shaft, 16-13 chain, 16-14 grid bar

10-1 seedling separating roller, 10-2 seedling separating roller bearing support plate, 10-3 tension spring II, 10-4 seedling separating roller adjusting bolt and nut, 10-5 deflector rod, 10-6 angle steel support, 10-7 pressure spring, 10-8 deflector rod support and 10-9 bolt and nut

25-1 driving chain wheel I, 25-2 conveying chain I, 25-3 drag chain wheels, 25-4 driven chain wheel I, 25-5 chains, 25-6 fine grid bars and 25-7 coarse grid bars.

Detailed Description

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following describes the potato combine in detail with reference to the attached drawings, so that the advantages and features of the potato combine can be more easily understood by those skilled in the art, and thus the protection scope of the present invention is defined more clearly.

As shown in fig. 1, 2 and 3, the potato combine harvester comprises a main frame 1, a digging shovel component 2, a cutting disc 3, a suspension bracket 4, a transmission case 5, a connecting frame 6, an accompanying lifting mechanism 7, a potato seedling separating mechanism 10, an intermediate chain wheel III 12, a rear conveying mechanism 16, a connecting disc lifting oil cylinder 19, a connecting disc for containing potato bags 20, a pedal 21, a traveling wheel 22 and a front lifting mechanism 25.

The cutting disc 3 is arranged at the front end of the main frame 1 and is arranged on two sides.

The transmission case 5 is installed on the main frame 1 and positioned in front of the main frame 1. A small transmission pulley 26 is mounted on one side of the transmission case 5 and is connected with a large transmission pulley 24 through a main transmission belt 31.

As shown in figures 4, 5 and 6, the digging shovel component 2 comprises a digging main shovel 2-1, a digging shovel connecting plate 2-2, an auxiliary digging shovel 2-3, a digging shovel angle adjusting bolt and nut 2-4 and a front bolt and nut 2-5, the digging shovel component 2 is arranged at the front end of the main frame 1, three holes are processed on the side surface of the main frame 1, the soil entering angles of the digging main shovel 2-1 and the auxiliary digging shovel 2-3 can be changed by the position of the digging shovel angle adjusting bolt and nut 2-4 in the holes, the digging main shovel 2-1 is made of manganese steel, the included angle of the cutting edge is 10-15 degrees (β), and the thickness is 15-25 mm (U).

As shown in figures 7, 8 and 9, the accompanying lifting mechanism 7 comprises a bearing seat support 23, a bearing seat 7-9, an accompanying lifting mechanism chain wheel 8, a driving shaft II 7-1, a connecting rod 7-4, a fixed support 7-5, a movable support 7-6, an adjusting screw nut 7-7, a floating pulley support 7-8, a driving chain wheel II 7-10, a driven chain wheel II 7-11, a conveying chain II 7-3 and a rubber scraper 7-2. The accompanying lifting mechanism 7 is connected with a bearing seat support 23 through bearing seats 7-9, the bearing seat support 23 is fixed at the upper end of the main frame 1 through fixing bolt nuts 7-21, and the accompanying lifting mechanism 7 is positioned above the front lifting mechanism 25 in parallel. The rubber scraper 7-2 is arranged on the conveying chain II 7-3 and moves along with the conveying chain II 7-3, and the distance between the end part of the rubber scraper 7-2 and the grid of the conveying chain I25-2 is 10 mm-20 mm (S). Because the rotation directions of the conveying chain I25-2 of the front lifting mechanism 25 and the conveying chain II 7-3 of the accompanying lifting mechanism are opposite, the advancing directions above the conveying chain I25-2 of the front lifting mechanism 25 and below the conveying chain II 7-3 of the accompanying lifting mechanism 7 both move upwards, and when the advancing directions are upwards, the rubber scraper 7-2 supports the potatoes to move upwards. The fixed support 7-5 is connected with the driving shaft II 7-1 through a connecting rod 7-4, one end of the movable support 7-6 is connected with the driven shaft II 7-19 through the connecting rod 7-4, the other end of the movable support is sleeved with the fixed support 7-5, and the fixed support 7-5 is connected with the movable support 7-6 through an adjusting bolt and a nut 7-7.

As shown in fig. 2 and 20, the middle part of the bearing seat support 23 is provided with an up-down adjusting bolt nut 7-20, three holes are processed on the side wall corresponding to the main frame 1, and the up-down height of the accompanying lifting mechanism 7 can be adjusted by adjusting the position of the up-down adjusting bolt nut 7-20 in the holes so as to adapt to the height of harvested potato seedlings.

As shown in fig. 8 and 9, the floating pulley bracket 7-8 is composed of a connecting arm 7-12, a rubber roller 7-13, a tension spring 7-14, a groove-shaped slideway 7-15, a tension spring adjusting bolt nut 7-16, a support 7-17 and a connecting plate 7-18. The function of the device is to float the support at the other end of the lifting mechanism 7, so that the device can be adjusted up and down conveniently. One end of the connecting plate 7-18 is welded on the side surface of the movable support 7-6, the other end of the connecting plate is fixed with the connecting arm 7-12 through a bolt and a nut, and the lower side of the outer end of the connecting arm 7-12 is provided with a rubber roller 7-13. The rubber rollers 7-13 are close to the groove-shaped slideways 7-15 at the outer side of the main frame 1. The end part of the outer end of the connecting arm 7-12 is provided with a tensioning spring 7-14, the lower end of the tensioning spring 7-14 is provided with a tension spring adjusting bolt nut 7-16, and the other end of the tension spring adjusting bolt nut 7-16 is connected with a support 7-17.

As shown in figures 3, 10 and 11, the front lifting mechanism 25 comprises a main driving chain wheel 11, a driving shaft 9, a driving chain wheel I25-1, a conveying chain I25-2, a driven chain wheel I25-4, a drag chain wheel 25-3 and a main driving large belt wheel 24, wherein the front lifting mechanism 25 is installed at the front end of the main frame 1 and is positioned behind the digging shovel component 2, and is used for smoothly lifting the potatoes dug by the digging main shovel 2-1 upwards and conveying the potatoes to the rear conveying mechanism 16, and separating soil blocks in the conveying process, the main driving large belt wheel 24 is installed at one side of the driving shaft 9, the driving chain wheel I25-1 is installed in the middle of the driving shaft, the main driving chain wheel 11, an intermediate chain wheel IV 29 and an intermediate chain wheel III 12 are sequentially installed at the other side of the driving shaft 9, and the included angle between the front lifting mechanism 25 and the ground is 55-60 degrees (.

As shown in FIG. 14, the conveying chain I25-2 of the front lifting mechanism 25 consists of a chain 25-5, a thin grid 25-6 and a thick grid 25-7, wherein the diameter of the thin grid 25-6 is

The diameter of the thick grid bars is 25-7

The center distance of the adjacent grid bars is 50 mm-55 mm (L1);

as shown in the figures 12 and 13, the rear conveying mechanism 16 consists of a rear conveying mechanism rack 16-1, a driving shaft III 16-11, a rear conveying mechanism transmission chain wheel 15, a rear conveying mechanism small belt wheel 30, a small belt wheel bracket 16-7, a rear conveying mechanism large belt wheel 17, a driving chain wheel III 16-9, a conveying chain III 16-2, a driven chain wheel III 16-10, a pocket hitch 16-3, a rubber baffle 16-6, a telescopic bracket 16-4 and a transmission belt 16-8. The rear conveying mechanism 16 is arranged on the main frame 1 through a rear conveying mechanism frame 16-1 and is positioned at the rear ends of the front lifting mechanism 25 and the sliding plate 32. The small belt pulley bracket 16-7 is arranged on one side of a side plate of the rear conveying mechanism 16, a small shaft 16-12 is arranged on the small belt pulley bracket, and a rear conveying mechanism transmission chain wheel 15 and a rear conveying mechanism small belt pulley 30 are respectively arranged at two ends of the shaft. The rear conveying mechanism big belt pulley 17 is arranged on one side of the driving shaft III 16-11, is positioned behind the rear conveying mechanism 16, is connected with the driving shaft III 16-11 through a transmission belt 16-8, and is coaxially provided with a driving chain wheel III 16-9.

The 4 pocket hitches 16-3 are 2 telescopic and 2 fixed. Wherein, 2 fixed pocket hitches 16-3 are arranged on a frame behind the rear conveying mechanism 16, 2 telescopic pocket hitches 16-3 are arranged on a telescopic frame 16-4 and are used for hanging and containing potato bags and facilitating the carrying of potatoes conveyed by the rear conveying mechanism, and the distance between the front and rear pocket hitches 16-3 can be adjusted by adjusting telescopic frame adjusting bolts 16-5 arranged on the telescopic frame 16-4.

As shown in FIG. 15, the conveying chain III 16-2 of the rear conveying mechanism 16 consists of a chain 16-13 and a grid 16-14, wherein the diameter of the grid 16-14 is

The center distance between the adjacent grids is 45 mm-50 mm (L2).

As shown in figures 1 and 2, the upper end of the potato bag receiving tray 20 is hinged on the rear conveying mechanism bracket 18, and the side surface of the potato bag receiving tray is hinged with the tray lifting oil cylinder 19.

As shown in fig. 16, 17, 18 and 19, the potato seedling separating mechanism 10 is composed of a seedling separating roller 10-1, a seedling separating roller bearing support plate 10-2, a tension spring II 10-3, a seedling separating roller adjusting bolt and nut 10-4 and a deflector rod 10-5, wherein the seedling separating roller 10-1 is positioned below the outlet end of a front lifting mechanism 25, one end of the seedling separating roller is provided with a seedling separating roller driving sprocket 13, two ends of an angle steel support 10-6 are fixed above a main frame 1, the deflector rod support 10-8 is welded on the angle steel support 10-6, the deflector rod 10-5 is hinged with the deflector rod support 10-8 through a bolt and nut 10-9 and is connected with a pressure spring 10-7, the lower end of the deflector rod 10-5 is tightly close to a conveying chain of the front lifting mechanism 25 under the action of the pressure spring 10-7, the seedling separating roller driving sprocket 13 is arranged on the seedling separating roller bearing support plate 10-2 through a bearing, the seedling separating roller bearing support plate 10-2 is L-shaped and is connected with a frame through a tension bolt and a tension spring II 10-3, the other end of the tension spring II is connected with a seedling separating roller adjusting bolt and nut 4, and a seedling separating roller adjusting bolt.

As shown in fig. 1, fig. 2 and fig. 3, the principle of the transmission process of the machine is as follows: the transmission case 5 obtains power from a power output shaft of the tractor and transmits the power to the main transmission big belt pulley 24 and the driving shaft 9 through the transmission case small belt pulley 26 and the main transmission belt 31. The driving shaft 9 drives the front lifting mechanism chain wheel 25-1 to rotate, and the front lifting mechanism 25 conveys the chain I25-2 to move upwards. The main driving chain wheel 11 drives the middle chain wheel I27, the middle chain wheel II 28, the accompanying lifting mechanism chain wheel 8, the driving shaft II 7-1 of the accompanying lifting mechanism 7 and the driving chain wheel II 7-10 to drive the conveying chain II 7-3 to move, and the chain between the conveying chain I25-2 and the conveying chain II 7-3 synchronously moves upwards. An intermediate chain wheel IV 29 which is coaxial with the main driving chain wheel 11 drives a seedling separating roller driving chain wheel 13, and a seedling separating roller chain wheel 14 and a seedling separating roller 10-1 are driven by the chain. The middle chain wheel III 12 which is coaxial with the main driving chain wheel 11 drives a rear conveying mechanism transmission chain wheel 15 and a rear conveying mechanism small belt wheel 30 through a chain, and the rear conveying mechanism small belt wheel 30 drives a rear conveying mechanism large belt wheel 17, a transmission shaft III 16-11, a driving chain wheel III 16-9 and a conveying chain III 16-2 to operate through a transmission belt 16-8.

Claims

1. The utility model provides a potato combine harvester, includes main frame, digs shovel part, cutting disc, mounted frame, transmission case, link, accompanies hoist mechanism, potato seedling separating mechanism, middle sprocket III, back conveying mechanism, flange hoist cylinder, dress potato bag flange, footboard, walking wheel, preceding hoist mechanism, its characterized in that:

the cutting disc is arranged at the front end of the main frame and is arranged on two sides;

the transmission case is arranged on the main rack and positioned in front of the main rack; a small belt pulley of the transmission case is arranged on one side of the transmission case and is connected with a large belt pulley of the main transmission through a main transmission belt;

the digging shovel component comprises a main digging shovel, a digging shovel connecting plate, an auxiliary digging shovel, a digging shovel angle adjusting bolt and a front bolt nut, and is arranged at the front end of the main frame; three holes are processed on the side surface of the main frame corresponding to the digging shovel component;

the front lifting mechanism comprises a main driving chain wheel, a driving shaft, a driving chain wheel I, a conveying chain I, a driven chain wheel I, a drag chain wheel and a main driving large belt wheel, is arranged at the front end of the main frame and is positioned behind the digging shovel component; a main driving large belt pulley is arranged on one side of the driving shaft, a driving chain wheel I is arranged in the middle of the driving shaft, and a main driving chain wheel, a middle chain wheel IV and a middle chain wheel III are sequentially arranged on the other side of the driving shaft;

the accompanying lifting mechanism consists of a bearing seat support, a bearing seat, an accompanying lifting mechanism chain wheel, a driving shaft II, a connecting rod, a fixed support, a movable support, an adjusting bolt and nut, a floating pulley support, a driving chain wheel II, a driven chain wheel II, a conveying chain II and a rubber scraper; the auxiliary lifting mechanism is connected with a bearing seat support through a bearing seat, the bearing seat support is fixed at the upper end of the main frame through a fixing bolt and a nut, the auxiliary lifting mechanism is parallelly located above the front lifting mechanism, the rubber scraper is installed on the conveying chain II and moves along with the conveying chain II, the fixing support is connected with the driving shaft II through a connecting rod, and one end of the movable support is connected with the driven shaft II through a connecting rod; the other end of the bearing seat support is sleeved with a fixed support, the fixed support is connected with the movable support through an adjusting bolt and a nut, the middle part of the bearing seat support is provided with an upper adjusting bolt and a lower adjusting bolt and a nut, and three holes are processed on the side wall of the corresponding main rack;

the floating pulley support consists of a connecting arm, a rubber roller, a tension spring, a groove-shaped slideway, a tension spring bolt nut, a support and a connecting plate, wherein one end of the connecting plate is welded on the side surface of the movable support; the other end of the connecting arm is fixed with the connecting arm through a bolt and a nut, a rubber roller is arranged on the lower side of the outer end of the connecting arm and abuts against a groove-shaped slideway on the outer side of the main frame, a tension spring is arranged at the end part of the outer end of the connecting arm, a tension spring adjusting bolt and nut is arranged at the lower end of the tension spring, and the other end of the tension spring adjusting bolt and nut is connected with the;

the rear conveying mechanism consists of a rear conveying mechanism frame, a driving shaft III, a rear conveying mechanism transmission chain wheel, a rear conveying mechanism small belt wheel, a small belt wheel support, a rear conveying mechanism large belt wheel, a driving chain wheel III, a conveying chain III, a driven chain wheel III, a pocket hitching device, a rubber baffle, a telescopic support and a transmission belt;

the pocket knotter is 2 telescopic pocket knotters and 2 fixed pocket knotters, wherein the 2 fixed pocket knotters are arranged on a frame behind the rear conveying mechanism, and the 2 telescopic pocket knotters are arranged on a telescopic bracket;

the potato seedling separating mechanism comprises a seedling separating roller, a seedling separating roller bearing supporting plate, a tensioning spring II, a seedling separating roller adjusting bolt nut and a shifting lever, wherein the seedling separating roller is positioned below the outlet end of a conveying chain I of a front lifting mechanism, a seedling separating roller driving chain wheel is installed at one end of the seedling separating roller driving chain wheel, two ends of an angle steel support are fixed above a main frame, the shifting lever support is welded on the angle steel support, the shifting lever is hinged with the shifting lever support through a bolt nut and is connected with a pressure spring, the lower end of the shifting lever is tightly close to the conveying chain I of the front lifting mechanism under the action of the pressure spring, the seedling separating roller bearing supporting plate is L-shaped and is connected with the frame through a bolt nut, the upper end of the shifting lever is connected with the tensioning spring II.

2. A potato combine harvester according to claim 1, wherein: the included angles between the front lifting mechanism and the accompanying lifting mechanism and the ground are both 55-60 degrees.

3. A potato combine harvester according to claim 1, wherein: the conveying chain I of the front lifting mechanism consists of a chain, thin grid bars and thick grid bars, the diameter of each thin grid bar is 12-15 mm, the diameter of each thick grid bar is 15-18 mm, and the center distance between every two adjacent thin grid bars and the center distance between every two adjacent thick grid bars is 50-55 mm.

4. A potato combine harvester according to claim 1, wherein: the distance between the end part of the rubber scraper and the conveying chain I is 10 mm-20 mm.