Mounting rack for harvesting potatoes

Abstract

The utility model relates to the technical field of agricultural machinery, and particularly discloses a mounting rack for potato harvesting. Comprising a mounting rack formed by welding an iron sheet metal part and a square tube, the mounting rack comprises a rear roller mounting rack, a driving chain wheel mounting rack and a front roller mounting rack, and the rear roller mounting rack and the front roller mounting rack are provided with rail wheels for limiting rollers. The technical problems that in the prior art, due to the installation mode that a long shaft penetrates through a drum screen for driving, harvested potatoes are broken in peel, the quality is not high, and a screen body of the drum screen is prone to deformation are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a mounting frame for potato harvesting. Background Art

[0002] Potatoes include potatoes, sweet potatoes, sweet potatoes, cassava and other food crops. They are one of the main food crops. Because they are a high-yield root crop, they have been widely used as staple food in the past. Currently, China is the world's largest potato-growing country, and potatoes have become one of the important guarantees for my country's future food security.

[0003] However, potatoes are root crops, and their fruits are at the roots, usually buried in the soil. Therefore, when it is time to harvest potatoes, farmers need to dig the potatoes out of the soil. This process is labor-intensive and inefficient. With the progress of society and the development of technology, there are many harvesters in the prior art that help harvest potatoes. For example, the patent document with application number: CN202111439184.8 discloses a spiral drum separation cassava harvester, which uses an excavating shovel of an excavation device to achieve soil entry and crushing, and is also designed with a drum screen. The hollow structure of the drum screen is used to well separate the potatoes from the soil.

[0004] Although the potato harvesting equipment of the above patent can complete the excavation of potatoes, the installation method of the drum screen is to install a rotating shaft at the central axis of the drum screen, and use the rotating shaft to drive the drum to rotate. Since a long shaft passes through the center of the drum screen for rotational drive, the end of the long shaft is affected by the centrifugal force during rotation, and eccentric rotation or non-coaxial rotation occurs, causing the entire drum screen to vibrate violently during rotation, and the potatoes and the screen body collide violently, not only causing the screen body to be deformed and damaged by the impact of the potatoes, but also causing the potatoes to be hit and broken, thus affecting the quality of the potatoes. And this vibration caused by eccentricity will become more serious as the use time increases. Utility Model Content

[0005] The utility model aims to provide a mounting frame for potato harvesting, which is used to solve the technical problems in the prior art mentioned above that the installation method of driving by penetrating a long axis through a drum screen causes the harvested potatoes to break, the quality is not high, and the screen body of the drum screen is easily deformed.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a mounting frame for potato harvesting, including a mounting frame formed by welding iron sheet metal parts and square tubes, the mounting frame including a rear roller mounting frame, a drive sprocket mounting frame and a front roller mounting frame, the rear roller mounting frame and the front roller mounting frame are provided with track wheels for limiting the rollers.

[0007] The beneficial effects of this embodiment are:

[0008] 1. In the prior art, the drum screen is installed by installing a rotating shaft at the center axis of the drum screen, and the rotating shaft is used to drive the drum to rotate. Since a long shaft passes through the center of the drum screen for rotational driving, the end of the long shaft is affected by the centrifugal force during rotation, and eccentric rotation occurs, causing the entire drum screen to vibrate violently during rotation. The present application uses a U-groove track wheel and a limiting ring on the drum to limit the rolling screen, so that the rolling screen can only rotate in the groove of the track wheel, and the driving sprocket is placed on top to provide a certain downward pressure on the drum, so that radial runout and axial runout are not easy to occur, resulting in less vibration.

[0009] 2. In the prior art, since the drum screen is supported by a long axis, eccentric vibration occurs, and the long axis transmits the vibration to the drive device, which makes it easy for the drive device to have gaps and thus be damaged. The present application utilizes the U-groove track to limit the position, and the drum and the frame are matched to form a surface contact rotating pair, and the track wheel rotates around its own axis relative to the drum. The friction during this period is rolling friction, and radial and axial runout are not easy to occur. The transmission matching wear is small, so it is more friendly to the drive device and makes the drive device have a longer service life.

[0010] 3. When the eccentric rotation separates the potatoes from the soil, the drum screen and the potatoes collide violently, causing the potatoes to break the skin, resulting in poor quality of the harvested potatoes, and the drum screen is impacted and easily deformed and damaged. The present application utilizes an inclined rubber-coated iron column, which is spiral in shape as a whole and has the same rotation direction as the drum, thereby further improving the passability of potato crops in the drum. The potatoes rotate on the inner wall of the drum screen without swinging or colliding. The potatoes are not easily broken and the drum screen is not easily damaged.

[0011] Furthermore, the track wheel is a U-shaped groove track wheel with a U-shaped annular groove in the middle. The annular groove can be engaged with a fixing ring on the drum, so that the drum is more stable.

[0012] Furthermore, a side mounting rod is fixedly connected between the rear roller mounting frame and the driving sprocket mounting frame, an oblique support rod is fixedly connected to the side mounting rod, one end of the oblique support rod is connected to the side mounting rod, and the other end is fixed to the lower mounting rod.

[0013] Furthermore, the rear roller mounting frame includes a rear mounting rod, and the front roller mounting frame includes a lower mounting rod. The rear mounting rod and the lower mounting rod are both provided with long waist holes, and the U-shaped groove track wheels are installed in the long waist holes. Two U-shaped groove track wheels are provided on the mounting rod and the lower mounting rod. The long waist holes are used to adjust the distance between the two U-shaped groove track wheels along the long waist holes, and then adjust the front and rear installation height of the roller in the present application, thereby achieving the purpose of adjusting the roller installation inclination angle.

[0014] Furthermore, the drive sprocket mounting frame is bolted to the side mounting rod.

[0015] Furthermore, the front roller mounting frame includes a lower mounting rod and a connecting plate, and the connecting plate is fixedly connected to the oblique support rod by three sets of bolts.

[0016] Furthermore, a side retaining plate is provided inside the oblique support rod, so that the screened soil will not splash under the action of centrifugal force, thereby preventing the processing environment from being polluted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model,

[0018] Figure 2 This is a schematic diagram of the structure of the utility model after assembly.

[0019] Figure 3 This is a schematic diagram of the structure of the front end installation of the drum in the embodiment of the utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the rear end installation of the drum in an embodiment of the utility model. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The figure marks in the drawings of the specification include: driving sprocket 1, seat bearing 2, driving shaft 3, upper mounting rod 4, lower mounting rod 5, connecting plate 6, walking wheel 7, walking support rod 8, inclined support rod 9, side mounting rod 10, rear mounting rod 11, U-groove track wheel 12, side retaining plate 13, chain 14, limit ring 15, screen 16.

[0023] Implementation example Figures 1 to 4 Shown is a mounting frame for potato harvesting, including a mounting frame, wherein the mounting frame includes a rear roller mounting frame, a driving sprocket mounting frame and a front roller mounting frame.

[0024] The rear roller mounting frame includes a rear mounting rod 11, and a U-shaped groove track wheel 12 is connected to the rear mounting rod 11 through a bearing. An annular groove is provided in the middle of the U-shaped groove track wheel 12, and the bottom of the annular groove is a semicircular arc, so the cross section of the annular groove is U-shaped, such as Figure 4 As shown, the U-groove track wheel 12 can be clamped on the inner side of the drum when the drum is installed to support and limit the fixing ring of the drum.

[0025] The front roller mounting frame includes a lower mounting rod 5, a connecting plate 6 and a track wheel mounted on the lower mounting rod 5. The track wheel on the lower mounting rod 5 is connected to the roller in the following manner: Figure 3 As shown, the fixing ring at the front end of the roller can be supported and limited.

[0026] The driving sprocket mounting frame includes an upper mounting rod 4, a seat bearing 2 is fixed to the middle of the upper mounting rod 4 by bolts, and a driving shaft 3 is rotatably connected to the bearing seat through a bearing. After the drum is installed, a driving sprocket 1 is installed on the driving shaft 3, and the drum is driven to rotate through the driving sprocket 1.

[0027] The rear roller mounting frame and the driving sprocket mounting frame are connected as a whole through the side mounting rod 10, one end of the side mounting rod 10 is fixedly connected to the end of the rear mounting rod 11 on the rear roller mounting frame by bolts, and the other end is fixed to the end of the mounting rod 4 on the driving sprocket mounting frame by bolts; and the front roller mounting frame is fixedly connected to the side mounting rod 10 through the oblique support rod 9. Since the side mounting rod 10 has connected the rear roller mounting frame and the driving sprocket mounting frame as a whole, the front roller mounting frame, the rear roller mounting frame and the driving sprocket mounting frame are connected as a whole through the side mounting rod 10 and the oblique support rod 9, and the side mounting rod 9 and the lower mounting rod 5 are welded.

[0028] A walking support rod 8 is arranged downward on the side mounting rod 10, and the walking support rod 8 is fixed to the side mounting rod 10 by bolts. The walking support rod 8 and the oblique support rod 9 are intersected and fixed by bolts at the intersection. Therefore, a triangular stable structure is formed between the side mounting rod 10, the walking support rod 8 and the side mounting rod 10, so that the overall structural strength is improved. The walking support rod 8 is composed of two galvanized pipes with different pipe widths connected by column pins. Its structure is the same as the telescopic rod of a folding umbrella. The walking wheel 7 is connected to the inner pipe of the walking support rod 8 by bolts, so the overlapping degree of the inner and outer galvanized pipes of the walking support rod 8 can be adjusted, and then the gap between the frame and the ground can be adjusted. A side retaining plate 13 is also connected to the inner side of the side mounting rod 10 by bolts.

[0029] The lower mounting rod 5 and the rear mounting rod 11 are provided with long waist holes, and the long waist holes allow the mounting shaft of the U-groove track wheel 12 to move along the long waist holes, which facilitates the installation and adjustment of the U-groove track wheel 12. Therefore, during installation, the U-groove track wheel 12 can be used to move axially along the long waist hole on the lower mounting rod 5 to adjust the distance between the two U-groove track wheels 12, thereby adjusting the inclination angle of the drum; because the closer the U-groove track wheel 12 and the track wheel are installed to the center of the lower mounting rod 5 and the rear mounting rod 11, the lower the position of contact with the drum. For example, the U-groove track wheel 12 is installed at the center position on the rear mounting rod 11. When the drum is installed, the U-groove track wheel 12 is located at the highest point of the drum circumference. At this time, the drum as a whole is lower than the U-groove track wheel 12, but the U-groove track wheel 12 is installed away from the center of the rear mounting rod 11. When the drum is installed, the U-groove track wheel 12 is located in the middle position of the drum circumference. At this time, the drum part of the circumference is higher than the U-groove track wheel 12. The principle of the lower mounting rod 5 is the same as that of the rear mounting rod 11, so the overall inclination angle of the drum can be adjusted to be larger or smaller by adjusting the mounting distance between the two U-groove track wheels 12.

[0030] However, when the track wheel installation distance on the front mounting frame is far away from the center of the lower mounting rod 5, the drive sprocket mounting frame above the drum can be raised by adding a gasket so that the drive sprocket and the chain on the drum are still engaged. The overall inclination angle becomes larger, otherwise the inclination angle becomes smaller.

[0031] like Figure 1 , Figure 2 As shown, connecting plates 6 are welded on both sides of the lower mounting rod 5. The connecting plates 6 are triangular in shape and have three through holes. During harvesting, if the soil is relatively dry and fragile and a drum filter is not needed, the bolts on the connecting plates 6 can be removed and the front and rear frames can be separated to reduce energy loss.

[0032] like Figure 1 , Figure 2 As shown in the figure, there are five contact points for the installation of the roller, namely, the contact points formed by the two U-groove track wheels on the lower mounting rod 5 and the limiting ring 15 of the roller, the contact points formed by the two U-groove track wheels 12 on the rear mounting rod 11 and the rear limiting ring of the roller, and the contact points formed by the chain 14 at the front end of the roller and the driving sprocket 1. The roller is restricted from rotating in the frame through the five contact points.

[0033] like Figure 2 As shown, the front and rear ends of the drum are both provided with limit rings 15, which are iron rings rolled from iron columns, and the inner diameter of the iron ring fits the outer ring of the front end of the drum screen 16, and the two are welded; the U-groove track wheel 12 has a bearing inside, which can rotate by itself, and when the limit ring 15 can rotate on the U-groove track wheel, the track wheel also rotates.

[0034] like Figure 3 , Figure 4 As shown, when the limiting ring 15 and the U-shaped groove track wheels on the rear mounting rod 11 and the lower mounting rod 5 are installed, the U-shaped groove track wheel 12 on the rear mounting rod 11 is located inside the limiting ring 15, and the drum is lifted up as a whole. The U-shaped groove track wheel 12 on the lower mounting rod 5 is located outside the limiting ring 15, and the drum is lifted up as a whole.

[0035] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A mounting frame for potato harvesting, comprising a mounting frame formed by welding iron sheet metal parts and square tubes, characterized in that: The mounting frame comprises a rear roller mounting frame, a driving sprocket mounting frame and a front roller mounting frame, and the rear roller mounting frame and the front roller mounting frame are provided with track wheels for limiting the position of the rollers.

2. The potato harvesting mounting frame according to claim 1, characterized in that: The track wheel is a U-shaped groove track wheel with a U-shaped annular groove in the middle.

3. The mounting frame for potato harvesting according to claim 1, characterized in that: A side mounting rod is fixedly connected between the rear roller mounting frame and the driving sprocket mounting frame, and an oblique support rod is fixedly connected to the side mounting rod. One end of the oblique support rod is connected to the side mounting rod, and the other end is fixed to the lower mounting rod.

4. The mounting frame for potato harvesting according to claim 2, characterized in that: The rear roller mounting frame includes a rear mounting rod, and the front roller mounting frame includes a lower mounting rod. The rear mounting rod and the lower mounting rod are both provided with long waist holes, and the U-shaped groove track wheels are installed in the long waist holes. Two U-shaped groove track wheels are arranged on the mounting rod and the lower mounting rod.

5. The mounting frame for potato harvesting according to claim 3, characterized in that: The drive sprocket mounting frame is bolted to the side mounting rod.

6. The mounting frame for potato harvesting according to claim 3, characterized in that: The front roller mounting frame comprises a lower mounting rod and a connecting plate, and the connecting plate is fixedly connected to the oblique supporting rod by three groups of bolts.

7. The mounting frame for potato harvesting according to claim 6, characterized in that: A side retaining plate is arranged inside the oblique support rod.

Images