Soil screening and conveying device for root-tuber crop harvester

Abstract

The utility model provides a soil screening and conveying device for a rhizome crop harvester, belongs to the technical field of agricultural machinery, and aims to solve the problem that certain potential safety hazards exist when hands of workers enter a conveying area when the workers take stuck crops manually in the prior art. Comprising a soil screening conveyor main body, a harvesting front shovel, a soil screening conveyor belt, a soil screening extrusion mechanism and a soil screening anti-blocking mechanism, the transmission supporting plate is fixedly connected to the front end of the upper portion of the soil screening conveyor body. The front harvesting shovel is fixedly connected to the lower end of the front portion of the soil screening conveyor body. The soil screening conveying belt is arranged on the inner side of the soil screening conveyor body, and a transmission roller of the soil screening conveying belt is in transmission connection with the harvesting transmission part. The soil sieving and extruding mechanism is arranged below the transmission supporting plate; the soil screening anti-blocking mechanism is arranged on the inner side of the soil screening conveying belt, crops clamped on the inner side of the soil screening conveying belt are ejected out, the hands of workers are prevented from entering a conveying area, and the safety of the whole conveyor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and more specifically, particularly relates to a soil screening and conveying device for a root and tuber crop harvester. Background Technique

[0002] When harvesting root and tuber crops, generally a harvester is used to dig the root and tuber crops out of the soil. The dug crops, soil, weeds, etc. fall onto a soil screening conveyor. The soil is separated by the soil screening roller of the soil screening conveyor, and the crops are conveyed into the interior of the collection device.

[0003] The existing application number is: CN202210368960.8. This invention discloses an agricultural harvesting device, which includes a seedling killing device arranged at the front end of a tractor and a root and tuber harvesting device arranged at the rear end of the tractor. The seedling killing device includes several seedling killing mechanisms; the seedling killing mechanisms are arranged on a seedling killing lifting system; the root and tuber harvesting device includes an inclined soil shoveling plate, a soil shaking sieve and a conveying chain. A collection trough is lapped below the tail of the conveying chain, and an automatically openable and closable trough door is arranged at the tail of the collection trough; control buttons for controlling a power device, a lifting drive mechanism and a power transmission system are arranged in the cab of the tractor. This invention is used for harvesting root and tuber crops planted underground, integrating seedling killing, digging, separating and harvesting, realizing a production line harvest, completely realizing an automated root and tuber harvesting process, greatly improving the harvesting efficiency and saving labor costs.

[0004] Based on the above, when the existing soil screening conveyor is used to convey root and tuber crops, since many root and tuber crops are small in size and easily get stuck inside the soil screening roller of the conveyor, resulting in the root and tuber crops always rotating with the soil screening roller of the conveyor, workers need to manually pick up the stuck crops. There are certain safety hazards when workers' hands enter the conveying area, affecting the use effect of the soil screening conveyor. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a soil screening and conveying device for a root and tuber crop harvester to solve the problem that when the existing soil screening conveyor is used to convey root and tuber crops, since many root and tuber crops are small in size and easily get stuck inside the soil screening roller of the conveyor, resulting in the root and tuber crops always rotating with the soil screening roller of the conveyor, workers need to manually pick up the stuck crops. There are certain safety hazards when workers' hands enter the conveying area, affecting the use effect of the soil screening conveyor.

[0006] The purpose and effect of a soil screening and conveying device for a root and tuber crop harvester of the utility model are achieved by the following specific technical means:

[0007] A soil screening and conveying device for a root crop harvester, comprising a soil screening conveyor main body, moving wheels, a transmission support plate, a harvesting transmission member, a pre-harvest shovel, a soil screening conveyor belt, a soil screening extrusion mechanism and a soil screening anti-blocking mechanism;

[0008] Two groups of the moving wheels are provided, and the two groups of moving wheels are respectively fixedly connected to the lower rear end of the soil screening conveyor main body;

[0009] The transmission support plate is fixedly connected to the upper front end of the soil screening conveyor main body;

[0010] The harvesting transmission member is fixedly connected above the transmission support plate. The harvesting transmission member is provided with a central tension rod structure, and the harvesting transmission member is connected to the agricultural machinery transmission through the central tension rod;

[0011] The pre-harvest shovel is fixedly connected to the lower front end of the soil screening conveyor main body;

[0012] The soil screening conveyor belt is arranged inside the soil screening conveyor main body, and the driving roller of the soil screening conveyor belt is in transmission connection with the harvesting transmission member;

[0013] The soil screening extrusion mechanism is arranged below the transmission support plate;

[0014] The soil screening anti-blocking mechanism is arranged inside the soil screening conveyor belt.

[0015] Further, the soil screening extrusion mechanism includes: an extrusion drive shaft and an extrusion drive crankshaft;

[0016] The extrusion drive shaft is rotatably connected to the inner front end of the soil screening conveyor main body, and the extrusion drive shaft is in transmission connection with the harvesting transmission member;

[0017] The extrusion drive crankshaft is coaxially and fixedly connected to the middle position of the extrusion drive shaft.

[0018] Further, the soil screening extrusion mechanism further includes: an extrusion connecting plate and an extrusion transmission member;

[0019] The extrusion connecting plate is slidably connected below the transmission support plate;

[0020] The extrusion transmission member is fixedly connected to the rear end of the extrusion connecting plate. The extrusion transmission member is provided with a rectangular groove structure, and the extrusion drive crankshaft is arranged inside the rectangular groove of the extrusion transmission member.

[0021] Further, the soil screening extrusion mechanism further includes: extrusion guide rods, an extrusion plate and an extrusion connecting spring;

[0022] Two groups of the extrusion guide rods are provided, and the two groups of extrusion guide rods are respectively slidably connected inside the extrusion connecting plate;

[0023] The extrusion plate is of an inclined plate structure and is fixedly connected to the lower end of the extrusion guide rod;

[0024] Two sets of extrusion connection springs are provided. The two sets of extrusion connection springs are respectively fixedly connected to the lower end of the extrusion connection plate, and the lower ends of the two sets of extrusion connection springs are both fixedly connected to the extrusion plate.

[0025] Further, the soil screening anti-blocking mechanism includes: an anti-blocking connecting rod and an anti-blocking driving cam;

[0026] Both the front and rear ends of the anti-blocking connecting rod are rotatably connected to the driving rollers of the soil screening conveyor belt;

[0027] Two sets of anti-blocking driving cams are provided. The two sets of anti-blocking driving cams are respectively fixedly connected to the left and right sides of the rear end of the anti-blocking connecting rod.

[0028] Further, the soil screening anti-blocking mechanism further includes: an anti-blocking driving slider, an anti-blocking connecting spring and an anti-blocking ejector rod;

[0029] Multiple groups of anti-blocking driving sliders are provided. The multiple groups of anti-blocking driving sliders are respectively slidably connected to the inner sides of the driving rollers of the soil screening conveyor belt, and the inner sides of the multiple groups of anti-blocking driving sliders are in frictional contact with the anti-blocking driving cams;

[0030] Multiple groups of anti-blocking connecting springs are provided. The multiple groups of anti-blocking connecting springs are respectively arranged on the inner sides of the driving rollers of the soil screening conveyor belt, and the inner sides of the multiple groups of anti-blocking connecting springs are fixedly connected to the anti-blocking driving sliders;

[0031] Multiple groups of anti-blocking ejector rods are provided. The multiple groups of anti-blocking ejector rods are respectively fixedly connected to the outer sides of the anti-blocking driving sliders.

[0032] Compared with the prior art, the present utility model has the following beneficial effects:

[0033] Through the setting of the soil screening and extrusion mechanism of the present utility model, the harvesting transmission part drives the extrusion transmission shaft to rotate, the extrusion transmission shaft rotates to drive the extrusion driving crankshaft to rotate, the extrusion driving crankshaft rotates to drive the extrusion transmission part to move up and down, the extrusion transmission part moves up and down to drive the extrusion connection plate to move up and down, the extrusion connection plate moves up and down to drive the extrusion guide rod to move up and down, the extrusion guide rod moves up and down to drive the extrusion plate to move up and down, and the up and down movement of the extrusion plate realizes the extrusion of the soil blocks, so that the soil blocks are extruded and broken and fall off, avoiding the soil blocks from entering the collection box along with the soil screening conveyor belt, reducing the labor intensity of subsequent manual sorting, and improving the use effect of the entire conveyor.

[0034] Through the setting of the soil screening anti-blocking mechanism of the present utility model, the anti-blocking driving slider rotates and contacts the anti-blocking driving cam. At this time, the anti-blocking driving cam pushes the anti-blocking driving slider to slide outward. The anti-blocking driving slider slides outward and drives the anti-blocking ejector rod to slide outward. The anti-blocking ejector rod sliding outward realizes the ejection of the crops stuck inside the soil screening conveyor belt, avoiding the continuous transportation of the crops along with the soil screening conveyor belt, avoiding the manual removal of the crops stuck inside the soil screening conveyor belt by workers, avoiding the entry of workers' hands into the transportation area, and improving the safety of the entire conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is the schematic diagram of the overall structure of the present utility model.

[0036] Figure 2 is the schematic diagram of the structure of the extrusion plate of the present utility model.

[0037] Figure 3 is the schematic diagram of the structure of the extrusion transmission part of the present utility model.

[0038] Figure 4 is the schematic diagram of the structure of the soil screening and extrusion mechanism of the present utility model.

[0039] Figure 5 is the schematic diagram of the structure of the soil screening anti-blocking mechanism of the present utility model.

[0040] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0041] 1. Soil screening conveyor main body; 101. Extrusion drive shaft; 102. Extrusion drive crankshaft; 103. Extrusion connecting plate; 104. Extrusion transmission part; 105. Extrusion guide rod; 106. Extrusion plate; 107. Extrusion connection spring; 2. Moving wheel; 3. Transmission support plate; 4. Harvest transmission part; 5. Pre-harvest shovel; 6. Soil screening conveyor belt; 601. Anti-blocking connecting rod; 602. Anti-blocking driving cam; 603. Anti-blocking driving slider; 604. Anti-blocking connection spring; 605. Anti-blocking ejector rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The following further describes in detail the embodiments of the present utility model with reference to the drawings and embodiments.

[0043] Embodiment 1:

[0044] As shown in Attachment Figure 1 to Attachment Figure 4 shown:

[0045] The present utility model provides a soil screening and conveying device for a root crop harvester, including a soil screening conveyor main body 1, a moving wheel 2, a transmission support plate 3, a harvest transmission part 4, a pre-harvest shovel 5, a soil screening conveyor belt 6, and a soil screening and extrusion mechanism;

[0046] There are two sets of moving wheels 2, and the two sets of moving wheels 2 are respectively fixedly connected to the lower rear end of the soil screening conveyor main body 1;

[0047] The transmission support plate 3 is fixedly connected to the upper front end of the soil screening conveyor main body 1;

[0048] The harvesting transmission member 4 is fixedly connected above the transmission support plate 3. The harvesting transmission member 4 is provided with a central tension rod structure, and the harvesting transmission member 4 is connected to the agricultural machinery transmission through the central tension rod;

[0049] The pre-harvest shovel 5 is fixedly connected to the lower front end of the soil screening conveyor main body 1;

[0050] The soil screening conveyor belt 6 is arranged inside the soil screening conveyor main body 1, and the driving roller of the soil screening conveyor belt 6 is in transmission connection with the harvesting transmission member 4;

[0051] The soil screening extrusion mechanism is arranged below the transmission support plate 3.

[0052] Among them, the soil screening extrusion mechanism includes: an extrusion transmission shaft 101, an extrusion driving crankshaft 102, an extrusion connecting plate 103, an extrusion transmission member 104, an extrusion guide rod 105, an extrusion plate 106 and an extrusion connecting spring 107;

[0053] The extrusion transmission shaft 101 is rotatably connected to the inner front end of the soil screening conveyor main body 1, and the extrusion transmission shaft 101 is in transmission connection with the harvesting transmission member 4;

[0054] The extrusion driving crankshaft 102 is coaxially and fixedly connected to the middle position of the extrusion transmission shaft 101;

[0055] The extrusion connecting plate 103 is slidably connected below the transmission support plate 3;

[0056] The extrusion transmission member 104 is fixedly connected to the rear end of the extrusion connecting plate 103. The extrusion transmission member 104 is provided with a rectangular groove structure, and the extrusion driving crankshaft 102 is arranged inside the rectangular groove of the extrusion transmission member 104;

[0057] There are two sets of extrusion guide rods 105, and the two sets of extrusion guide rods 105 are respectively slidably connected inside the extrusion connecting plate 103;

[0058] The extrusion plate 106 is an inclined plate structure, and the extrusion plate 106 is fixedly connected to the lower end of the extrusion guide rod 105;

[0059] There are two sets of extrusion connecting springs 107, and the two sets of extrusion connecting springs 107 are respectively fixedly connected to the lower end of the extrusion connecting plate 103, and the lower ends of the two sets of extrusion connecting springs 107 are both fixedly connected to the extrusion plate 106.

[0060] In use, when harvesting root crops, the harvesting transmission member 4 drives the extrusion transmission shaft 101 to rotate at this time. The rotation of the extrusion transmission shaft 101 drives the extrusion drive crankshaft 102 to rotate. The rotation of the extrusion drive crankshaft 102 drives the extrusion transmission member 104 to move up and down. The up and down movement of the extrusion transmission member 104 drives the extrusion connection plate 103 to move up and down. The up and down movement of the extrusion connection plate 103 drives the extrusion guide rod 105 to move up and down. The up and down movement of the extrusion guide rod 105 drives the extrusion plate 106 to move up and down. The up and down movement of the extrusion plate 106 realizes the extrusion of soil blocks, causing the soil blocks to be extruded and broken and fall off, avoiding the soil blocks from entering the collection box along with the soil screening conveyor belt 6, reducing the labor intensity of subsequent manual sorting, and improving the use effect of the entire conveyor.

[0061] Embodiment Two:

[0062] The present utility model provides a soil screening conveying device for a root crop harvester. On the basis of Embodiment One, as Figures 1 to 5 shown, it further includes a soil screening anti-blocking mechanism, and the soil screening anti-blocking mechanism is arranged inside the soil screening conveyor belt 6.

[0063] Among them, the soil screening anti-blocking mechanism includes: an anti-blocking connecting rod 601, an anti-blocking driving cam 602, an anti-blocking driving slider 603, an anti-blocking connecting spring 604, and an anti-blocking ejector rod 605;

[0064] Both the front and rear ends of the anti-blocking connecting rod 601 are rotatably connected to the driving rollers of the soil screening conveyor belt 6;

[0065] Two groups of anti-blocking driving cams 602 are provided, and the two groups of anti-blocking driving cams 602 are respectively fixedly connected to the left and right sides of the rear end of the anti-blocking connecting rod 601;

[0066] Multiple groups of anti-blocking driving sliders 603 are provided, and the multiple groups of anti-blocking driving sliders 603 are respectively slidably connected to the inside of the driving rollers of the soil screening conveyor belt 6, and the inside of the multiple groups of anti-blocking driving sliders 603 is in frictional contact with the anti-blocking driving cam 602;

[0067] Multiple groups of anti-blocking connecting springs 604 are provided, and the multiple groups of anti-blocking connecting springs 604 are respectively arranged inside the driving rollers of the soil screening conveyor belt 6, and the inside of the multiple groups of anti-blocking connecting springs 604 is fixedly connected to the anti-blocking driving slider 603;

[0068] Multiple groups of anti-blocking ejector rods 605 are provided, and the multiple groups of anti-blocking ejector rods 605 are respectively fixedly connected to the outside of the anti-blocking driving slider 603.

[0069] In use, as the driving roller of the soil screening conveyor belt 6 rotates, it drives the anti-blocking driving slider 603 to rotate. When the anti-blocking driving slider 603 rotates and contacts the anti-blocking driving cam 602, at this time, the anti-blocking driving cam 602 pushes the anti-blocking driving slider 603 to slide outward. The outward sliding of the anti-blocking driving slider 603 drives the anti-blocking ejector rod 605 to slide outward. The outward sliding of the anti-blocking ejector rod 605 realizes the ejection of the crops stuck inside the soil screening conveyor belt 6, avoiding the continuous conveyance of the crops along with the soil screening conveyor belt 6, avoiding the need for workers to manually remove the crops stuck inside the soil screening conveyor belt 6, and avoiding the entry of workers' hands into the conveying area, thus improving the safety of the entire conveyor.

[0070] In this article, the following points need attention:

[0071] 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0072] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0073] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A soil screening and conveying device for a root crop harvester, comprising a soil screening conveyor main body (1), moving wheels (2), a transmission support plate (3), a harvesting transmission member (4), a pre-harvest shovel (5), a soil screening conveyor belt (6), a soil screening extrusion mechanism and a soil screening anti-blocking mechanism; two groups of the moving wheels (2) are provided, and the two groups of moving wheels (2) are respectively fixedly connected to the lower rear end of the soil screening conveyor main body (1); it is characterized in that: The transmission support plate (3) is fixedly connected to the front end above the main body (1) of the soil screening conveyor; the harvesting transmission member (4) is fixedly connected above the transmission support plate (3), and the harvesting transmission member (4) is provided with a central tension rod structure, and the harvesting transmission member (4) is connected to the agricultural machinery through the central tension rod; the pre-harvest shovel (5) is fixedly connected to the lower front end of the main body (1) of the soil screening conveyor; the soil screening conveyor belt (6) is arranged inside the main body (1) of the soil screening conveyor, and the driving roller of the soil screening conveyor belt (6) is in transmission connection with the harvesting transmission member (4); the soil screening extrusion mechanism is arranged below the transmission support plate (3); the soil screening anti-blocking mechanism is arranged inside the soil screening conveyor belt (6).

2. The soil screening and conveying device for a root crop harvester according to claim 1, characterized in that: The soil screening extrusion mechanism includes: an extrusion drive shaft (101) and an extrusion drive crankshaft (102); the extrusion drive shaft (101) is rotatably connected to the front end inside the main body (1) of the soil screening conveyor, and the extrusion drive shaft (101) is in transmission connection with the harvesting transmission member (4); the extrusion drive crankshaft (102) is coaxially and fixedly connected to the middle position of the extrusion drive shaft (101).

3. The soil screening and conveying device for a root crop harvester according to claim 2, characterized in that: The soil screening extrusion mechanism further includes: an extrusion connecting plate (103) and an extrusion transmission member (104); the extrusion connecting plate (103) is slidably connected below the transmission support plate (3); the extrusion transmission member (104) is fixedly connected to the rear end of the extrusion connecting plate (103), the extrusion transmission member (104) is provided with a rectangular groove structure, and the extrusion drive crankshaft (102) is arranged inside the rectangular groove of the extrusion transmission member (104).

4. The soil screening and conveying device for a root crop harvester according to claim 3, characterized in that: The soil screening extrusion mechanism further includes: extrusion guide rods (105), an extrusion plate (106) and extrusion connecting springs (107); two groups of extrusion guide rods (105) are provided, and the two groups of extrusion guide rods (105) are respectively slidably connected inside the extrusion connecting plate (103); the extrusion plate (106) is of an inclined plate structure, and the extrusion plate (106) is fixedly connected to the lower ends of the extrusion guide rods (105); two groups of extrusion connecting springs (107) are provided, the two groups of extrusion connecting springs (107) are respectively fixedly connected to the lower ends of the extrusion connecting plate (103), and the lower ends of the two groups of extrusion connecting springs (107) are both fixedly connected to the extrusion plate (106).

5. The soil screening and conveying device for a root crop harvester according to claim 1, characterized in that: The soil screening anti-blocking mechanism includes: an anti-blocking connecting rod (601) and anti-blocking drive cams (602); the front and rear ends of the anti-blocking connecting rod (601) are both rotatably connected to the driving rollers of the soil screening conveyor belt (6); two groups of anti-blocking drive cams (602) are provided, and the two groups of anti-blocking drive cams (602) are respectively fixedly connected to the left and right sides of the rear end of the anti-blocking connecting rod (601).

6. The soil screening and conveying device for a root crop harvester according to claim 5, wherein: The soil screening anti-blocking mechanism further includes: an anti-blocking driving slider (603), an anti-blocking connecting spring (604), and an anti-blocking ejector rod (605); multiple groups of the anti-blocking driving sliders (603) are provided, and the multiple groups of anti-blocking driving sliders (603) are respectively slidably connected to the inner sides of the driving rollers of the soil screening conveyor belt (6), and the inner sides of the multiple groups of anti-blocking driving sliders (603) are in frictional contact with the anti-blocking driving cam (602); multiple groups of the anti-blocking connecting springs (604) are provided, and the multiple groups of anti-blocking connecting springs (604) are respectively arranged on the inner sides of the driving rollers of the soil screening conveyor belt (6), and the inner sides of the multiple groups of anti-blocking connecting springs (604) are fixedly connected to the anti-blocking driving sliders (603); multiple groups of the anti-blocking ejector rods (605) are provided, and the multiple groups of anti-blocking ejector rods (605) are respectively fixedly connected to the outer sides of the anti-blocking driving sliders (603).

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