Screening and impurity removing device of nut picking machine and nut picking machine

Abstract

The utility model discloses a screening and impurity removing device of a nut picking machine. The screening and impurity removing device solves the problem that an existing nut picking machine needs secondary picking. The screening and impurity removing device of the nut picking machine comprises a sieve plate, impurity removing holes are formed in the sieve plate, the sieve plate comprises a fixedly-arranged first sieve plate body and a second sieve plate body capable of adjusting the first sieve plate body, first sieve holes are formed in the first sieve plate body, and second sieve holes are formed in the second sieve plate body. The first sieve plate and the second sieve plate are stacked up and down, the first sieve holes and the second sieve holes are communicated in the height direction of the sieve plates and at least partially overlapped to form the impurity discharging holes, and the second sieve plate is adjusted to change the overlapping area of the first sieve holes and the second sieve holes so as to change the size of the impurity discharging holes. The probability that small nuts are screened out can be reduced by adjusting the sizes of the impurity discharging holes, and therefore secondary harvesting is reduced or avoided. The utility model further provides a nut picking machine which comprises the screening and impurity removing device.

Description

Technical Field

[0001] This utility model relates to the field of nut-picking machine technology, and in particular to a screening and impurity removal device for nut-picking machines. Background Technology

[0002] Harvesting nuts such as dates and walnuts usually requires knocking the fruit off the tree first, and then using a nut-collecting machine to pick them up. Because there is a lot of debris on the ground, such as soil, fallen leaves, and branches, these debris will also be picked up along with the nuts and put into the nut-collecting machine during the nut-collecting process.

[0003] Existing nut-collecting machines typically have a sieve plate. By shaking the sieve plate from side to side, debris is made to fall through the sieve holes.

[0004] However, the size of the sieve holes in the existing nut picking machine is usually not adjustable. As a result, when picking up nuts with large differences in the size of the nuts, many smaller nuts are sieved out by the sieve and fall back to the ground. The sieved nuts need to be picked up again. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art by proposing a screening and impurity removal device for a nut picking machine, so as to solve the problem that the existing nut picking machine needs to pick up the second time.

[0006] To achieve the above technical objectives, the present invention proposes a screening and impurity removal device for a nut-collecting machine, which is installed on the nut-collecting machine. The screening and impurity removal device includes a sieve plate, and the sieve plate is provided with impurity discharge holes. The sieve plate includes:

[0007] A first sieve plate is fixedly installed and has a first sieve hole; and,

[0008] A second sieve plate is adjustablely connected to the first sieve plate. The second sieve plate is provided with a second sieve hole. The first sieve plate and the second sieve plate are stacked on top of each other. The first sieve hole and the second sieve hole are connected in the height direction of the sieve plate and at least partially overlap to form the impurity discharge hole. Adjusting the second sieve plate changes the overlapping area of ​​the first sieve hole and the second sieve hole, thereby changing the size of the impurity discharge hole.

[0009] The screening and impurity removal device of this utility model adopts a first screen plate and a second screen plate stacked on top of each other. The first screen plate and the second screen plate are adjustablely connected. The user can adjust the second screen plate according to actual needs to change the overlapping area of ​​the first screen hole and the second screen hole, thereby changing the size of the impurity discharge hole. This reduces the probability that small nuts will be screened out by the screening and impurity removal device, so that as many nuts as possible can be harvested, thereby avoiding secondary harvesting, reducing the harvest cost for growers and increasing the harvest quantity.

[0010] Preferably, the first sieve hole is a plurality of strip-shaped holes extending in the same direction, and the second sieve hole is a plurality of strip-shaped holes extending in the same direction as the first sieve hole, and the second sieve hole and the first sieve hole are arranged correspondingly.

[0011] By adopting the aforementioned technical solution, since the first and second screen holes are strip-shaped holes, the length of the discharge holes is increased without increasing the width of the discharge holes. Under the same discharge width, the discharge area on the screen plate is increased, thereby improving the discharge efficiency. Furthermore, the corresponding arrangement of the second and first screen holes allows several discharge holes to be adjusted synchronously in a consistent manner, thereby improving the adjustment efficiency.

[0012] Preferably, the second sieve aperture has the same size as the first sieve aperture.

[0013] By adopting the aforementioned technical solution, the utilization of the first and second screen holes is maximized, avoiding the additional processing costs caused by larger screen holes on the first or second screen plate. Furthermore, when the first and second screen plates form screen holes by stamping, the stamping molds can be interchangeable, further reducing costs.

[0014] Preferably, the device also includes a drive mechanism that drives the sieve plate to reciprocate along the width direction of the nut picking machine, wherein the length direction of the first sieve hole is perpendicular to the reciprocating direction of the sieve plate.

[0015] Using the aforementioned technical solution, the length direction of the first sieve hole is perpendicular to the movement direction of the sieve plate. Since the first and second sieve holes are elongated, the first or second sieve hole forms a guide groove that guides the movement direction of the nuts. Nuts that are stopped by the first or second sieve hole and remain on the sieve plate can move along the extension direction of the first or second sieve hole, reducing the influence of the sieve hole on the movement of the nuts.

[0016] Preferably, one of the first sieve plate and the second sieve plate is provided with a waist-shaped hole for adjusting the position, and the other is provided with a fixing hole. Fasteners pass through the fixing hole and the waist-shaped hole to adjustably fix the first sieve plate and the second sieve plate together.

[0017] Using the aforementioned technical solution, the first screen plate and the second screen plate are tunably and fixedly connected through the waist-shaped hole. The waist-shaped hole allows the second screen plate to be flexibly adjusted relative to the first screen plate, so that the size of the impurity discharge hole can be adjusted more flexibly.

[0018] Preferably, the waist-shaped hole is provided in multiple ways, and the fixing hole is provided in multiple ways accordingly.

[0019] By adopting the aforementioned technical solution, the first sieve plate and the second sieve plate can be reliably fixedly connected, reducing or avoiding the probability of changes in the size of the discharge holes during the use of the screening and impurity removal device.

[0020] Preferably, the first sieve plate includes a sieve plate portion and a connecting plate portion, the fixing hole or the waist-shaped hole is provided on the connecting plate portion, the connecting plate portion is formed by extending downward from one end of the sieve plate portion, and the connecting plate portion and the sieve plate portion form a cavity for receiving the second sieve plate.

[0021] By adopting the aforementioned technical solution, the fasteners protruding from the sieve plate are prevented from breaking the nuts during the nut screening and impurity removal process. The downward extension of the connecting plate also prevents the connecting plate from affecting the entry of the nuts into the sieve plate. At the same time, it provides storage space for the second sieve plate, which can be easily and adjustablely connected to the first sieve plate in the storage space.

[0022] Preferably, the device also includes mounting brackets on both sides of the sieve plate. The mounting brackets include flexible baffles and mounting plates fixedly connected to the flexible baffles. The flexible baffles are respectively connected to opposite sides of the first sieve plate, and the mounting plates are connected between the flexible baffles and the nut picking machine.

[0023] By adopting the aforementioned technical solution, by setting up a mounting frame on the screening and impurity removal device, the nuts are prevented from falling from both sides of the screening and impurity removal device. Furthermore, the mounting frame is equipped with flexible plates that stop on both sides of the sieve plate, which can prevent the nuts from being broken by the mounting frame.

[0024] Preferably, the system also includes a dust removal fan, which is located below the screen plate and generates air that blows toward the screen plate.

[0025] Using the aforementioned technical solution, a dust removal fan is usually installed below the sieve plate, which allows lighter impurities carried on the nuts to be blown out of the nut picking machine by the wind, thereby reducing the impurities carried on the harvested nuts.

[0026] This utility model also proposes a nut picking machine, which includes a screening and impurity removal device for any of the above technical solutions.

[0027] The nut-picking machine of this utility model has all the technical effects of the above-mentioned technical solutions because it adopts the screening and impurity removal device of any of the above-mentioned technical solutions.

[0028] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the screening and impurity removal device in an embodiment of this utility model;

[0030] Figure 2 This is an exploded view of the screening and impurity removal device in an embodiment of this utility model;

[0031] Figure 3This is an exploded schematic diagram of the impurity removal fan in an embodiment of this utility model.

[0032] Figure label:

[0033] 100. Sieve plate; 101. Impurity discharge hole; 110. First sieve plate; 111. First sieve hole; 112. Sieve plate part; 113. Connecting plate part; 114. Fixing hole; 120. Second sieve plate; 121. Second sieve hole; 122. Waist-shaped hole; 130. Mounting bracket; 131. Flexible baffle; 132. Mounting plate;

[0034] 200. Impurity removal fan; 201. Motor; 202. Motor mounting plate; 203. Fan blade. Detailed Implementation

[0035] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" or "several" means two or more, unless otherwise expressly defined.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] like Figure 1 , Figure 2 As shown in the embodiment of this utility model, the screening and impurity removal device for the nut-picking machine is installed on the nut-picking machine. The screening and impurity removal device includes a sieve plate 100, on which impurity discharge holes 101 are provided. The nut-picking machine picks up nuts from the ground, and the picked-up nuts enter the screening and impurity removal device for impurity removal. When the nuts pass through the sieve plate 100, external impurities that entered the screening and impurity removal device along with the picked nuts are discharged through the impurity discharge holes 101. The impurity-removed nuts enter the storage box of the nut-picking machine.

[0040] In this embodiment, the sieve plate 100 includes a fixedly disposed first sieve plate 110 and a second sieve plate 120 tunably connected to the first sieve plate 110. The first sieve plate 110 has a first sieve hole 111, and the second sieve plate 120 has a second sieve hole 121. The first sieve plate 110 and the second sieve plate 120 are stacked vertically, and the first sieve hole 111 and the second sieve hole 121 communicate with each other in the height direction of the sieve plate 100 and at least partially overlap to form the aforementioned impurity discharge hole 101. Adjusting the second sieve plate 120 changes the overlapping area of ​​the first sieve hole 111 and the second sieve hole 121, thereby changing the size of the impurity discharge hole 101. Changing the size of the impurity discharge hole 101 can be done by changing the diameter of the impurity discharge hole 101 or by changing the width of the impurity discharge hole 101.

[0041] In this embodiment, multiple first sieve holes 111 and multiple second sieve holes 121 are provided, and the first sieve holes 111 and multiple second sieve holes 121 are provided in a corresponding manner so that multiple impurity discharge holes 101 are formed on the sieve plate 100.

[0042] The screening and impurity removal device of this utility model adopts a first screen plate 110 and a second screen plate 120 stacked on top of each other. The first screen plate 110 and the second screen plate 120 are tunably connected. The user can adjust the second screen plate 120 according to actual needs to change the overlapping area of ​​the first screen hole 111 and the second screen hole 121, thereby changing the size of the impurity discharge hole 101. This reduces the probability that nuts with smaller kernels will be screened out by the screening and impurity removal device, so that as many nuts as possible can be harvested, thereby avoiding secondary harvesting as much as possible, reducing the harvesting cost for growers and increasing the harvest quantity.

[0043] In one embodiment, such as Figure 1 , Figure 2 As shown, the first sieve hole 111 is a plurality of first strip-shaped holes extending in the same direction, and the second sieve hole 121 is a second strip-shaped hole extending in the same direction as the first sieve hole 111. The second sieve hole 121 is arranged correspondingly to the first sieve hole 111.

[0044] The correspondence between the second sieve hole 121 and the first sieve hole 111 refers to the correspondence in both the number and position of the second sieve hole 121 and the first sieve hole 111. In this way, when adjusting the second sieve plate 120, the several impurity removal holes 101 can be adjusted synchronously in a consistent manner.

[0045] Since the first sieve hole 111 and the second sieve hole 121 are strip-shaped holes, the length of the discharge hole 101 is increased without increasing the width of the discharge hole 101. Under the same discharge width, the discharge area on the sieve plate 100 is increased, thereby improving the discharge efficiency. Furthermore, the corresponding arrangement of the second sieve hole 121 and the first sieve hole 111 allows several discharge holes 101 to be adjusted synchronously in a consistent manner, thereby improving the adjustment efficiency.

[0046] In this embodiment, a plurality of first strip-shaped holes are arranged in a row and distributed at intervals along a direction perpendicular to the length direction of the first sieve holes 111.

[0047] In some other embodiments, the plurality of first strip holes may also be arranged in two or more rows.

[0048] In some other embodiments, the plurality of first strip-shaped holes may also extend in the same direction in an alternating pattern.

[0049] In this preferred embodiment, the second sieve hole 121 has the same size as the first sieve hole 111.

[0050] Understandably, the smaller of the first screen hole 111 and the second screen hole 121 determines the maximum size of the impurity discharge hole 101. Since the second screen hole 121 is the same size as the first screen hole 111, the utilization of both screen holes 111 and 121 is maximized, avoiding the additional processing costs associated with larger screen holes on the first screen plate 110 or the second screen plate 120. Furthermore, when the first screen plate 110 and the second screen plate 120 form screen holes through stamping, the stamping dies can be interchangeable, further reducing costs.

[0051] In some other embodiments, the first sieve hole 111 and the second sieve hole 121 may also be circular through holes.

[0052] In one embodiment, the screening and impurity removal device further includes a drive mechanism that drives the sieve plate 100 to reciprocate along the width direction of the nut picking machine, wherein the length direction of the first sieve hole 111 is perpendicular to the movement direction of the sieve plate 100.

[0053] The drive mechanism includes a motor and a transmission component. The motor's movement drives the sieve plate 100 to reciprocate rapidly via the transmission component. The length direction of the first sieve hole 111 is perpendicular to the movement direction of the sieve plate 100. Since the first sieve hole 111 and the second sieve hole 121 are elongated, they form guide grooves that guide the movement of nuts. Nuts that are stopped by the first sieve hole 111 or the second sieve hole 121 and remain on the sieve plate 100 can move along the extension direction of the first sieve hole 111 or the second sieve hole 121, reducing the influence of the sieve holes on the movement of the nuts.

[0054] In one embodiment, such as Figure 1 , Figure 2 As shown, the first sieve plate 110 is provided with a fixing hole 114, and the second sieve plate 120 is provided with a waist-shaped hole 122 for adjusting the installation position. Fasteners pass through the fixing hole 114 and the waist-shaped hole 122 to adjustably fix the first sieve plate 110 and the second sieve plate 120 together.

[0055] In some other embodiments, the first sieve plate 110 may be provided with a waist-shaped hole 122, and the second sieve plate 120 may be provided with a fixing hole 114.

[0056] The first sieve plate 110 and the second sieve plate 120 are tunably and fixedly connected through the waist-shaped hole 122. The waist-shaped hole 122 allows the second sieve plate 120 to be flexibly adjusted relative to the first sieve plate 110, so that the size of the impurity discharge hole 101 can be adjusted more flexibly.

[0057] In some other embodiments, one of the first sieve plate 110 and the second sieve plate 120 may be provided with a plurality of positioning holes, and the other may be provided with a fixing hole 114. Fasteners pass through the fixing hole 114 and one of the plurality of positioning holes, so that the first sieve plate 110 and the second sieve plate 120 are fixedly connected, and the plurality of positioning holes allow the first sieve plate 110 and the second sieve plate 120 to be adjusted and fixedly connected.

[0058] In one embodiment, such as Figure 1 , Figure 2 As shown, multiple waist-shaped holes 122 are provided, and multiple fixing holes 114 are provided accordingly. The first screen plate 110 and the second screen plate 120 are fixedly connected by multiple fasteners passing through the waist-shaped holes 122 and fixing holes 114 respectively.

[0059] Since the screening and impurity removal device is in motion during operation, the first screen plate 110 and the second screen plate 120 need to be reliably fixedly connected to prevent the second screen plate 120 from shifting relative to the first screen plate 110 and changing the size of the impurity discharge hole 101. Through the above-mentioned arrangement, the first screen plate 110 and the second screen plate 120 can be reliably fixedly connected, reducing or avoiding the probability of the size of the impurity discharge hole 101 changing during the use of the screening and impurity removal device.

[0060] It should be noted that the screening and impurity removal device is in motion when it is working. On the one hand, the nut picker moves along a predetermined route when picking up nuts, and the vibration generated during the movement of the nut picker is transmitted to the screening and impurity removal device. On the other hand, in some embodiments, the screening and impurity removal device is equipped with a drive mechanism that drives the screen plate 100 to vibrate.

[0061] In one embodiment, the first sieve plate 110 includes a sieve plate portion 112 and a connecting plate portion 113. A fixing hole 114 or a waist-shaped hole 122 is provided on the connecting plate portion 113. The connecting plate portion 113 is formed by extending downward from one end of the sieve plate portion 112. The connecting plate portion 113 and the sieve plate portion 112 form a storage space for accommodating the second sieve plate 120.

[0062] This design avoids the fasteners protruding from the sieve plate 100 and breaking the nuts during nut screening and impurity removal. The downward extension of the connecting plate 113 also prevents the connecting plate 113 from affecting the entry of nuts into the sieve plate 100. At the same time, it provides storage space for the second sieve plate 120, which can be easily and flexibly connected to the first sieve plate 110 in the storage space.

[0063] In one embodiment, such as Figures 1 to 3 As shown, the screening and impurity removal device also includes an impurity removal fan 200, which is located below the screen plate 100 and generates air that blows toward the screen plate 100.

[0064] The impurity removal fan 200 includes a motor 201, a motor mounting plate 202, and a fan blade 203. The motor 201 is mounted on the nut picking machine via the motor mounting plate 202, and the fan blade 203 is mounted on the motor 201. The fan blade 203 is approximately parallel to the sieve plate 100. The operation of the motor 201 drives the fan blade 203 to rotate and generate wind blowing towards the sieve plate 100.

[0065] When the screening and impurity removal device is in operation, some lighter impurities are difficult to screen out through the impurity discharge hole 101. Therefore, the impurity removal fan 200 is usually installed below the screen plate 100 so that these lighter impurities can be blown out of the nut picking machine by the wind, thereby reducing the impurities carried on the harvested nuts.

[0066] It should be noted that the impurity removal fan 200 can be in a continuous blowing state, or it can blow intermittently and stop intermittently, or it can blow with varying intensity.

[0067] In one embodiment, such as Figure 1 , Figure 2As shown, the screening and impurity removal device also includes mounting frames 130 disposed on both sides of the sieve plate 100. The mounting frame 130 includes a flexible baffle 131 and a mounting plate 132 fixedly connected to the flexible baffle 131. The two flexible baffles 131 are respectively stopped on opposite sides of the first sieve plate 110. The mounting plate 132 is connected between the flexible baffle 131 and the nut picking machine. The screening and impurity removal device is installed to the nut picking machine through the mounting frame 130.

[0068] In this embodiment, the flexible baffle 131 is a baffle made of rubber.

[0069] By setting a mounting frame 130 on the screening and impurity removal device, nuts are prevented from falling from both sides of the screening and impurity removal device. Furthermore, the mounting frame 130 is provided with flexible plates that stop on both sides of the sieve plate 100, which can prevent the nuts from being broken by the mounting frame 130.

[0070] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A screening and impurity removal device for a nut-collecting machine, installed on the nut-collecting machine, the screening and impurity removal device including a sieve plate, the sieve plate being provided with impurity discharge holes. Its features are, The sieve plate includes: A first sieve plate is fixedly installed and has a first sieve hole; and, A second sieve plate is adjustablely connected to the first sieve plate. The second sieve plate has a second sieve hole. The first sieve plate and the second sieve plate are stacked one on top of the other. The first sieve hole and the second sieve hole are connected in the height direction of the sieve plate and at least partially overlap to form the impurity discharge hole. Adjusting the second sieve plate changes the overlapping area of ​​the first sieve hole and the second sieve hole, thereby changing the size of the impurity discharge hole. The screening and impurity removal device also includes a mounting frame with two sides of the screen plate. The mounting frame includes a flexible baffle and a mounting plate fixedly connected to the flexible baffle. The flexible baffle is respectively connected to the opposite sides of the first screen plate, and the mounting plate is connected between the flexible baffle and the nut picking machine.

2. The screening and impurity removal device as described in claim 1, characterized in that, The first sieve hole is a plurality of strip-shaped holes extending in the same direction, and the second sieve hole is a plurality of strip-shaped holes extending in the same direction as the first sieve hole, and the second sieve hole and the first sieve hole are arranged correspondingly.

3. The screening and impurity removal device as described in claim 2, characterized in that, The second sieve aperture has the same size as the first sieve aperture.

4. The screening and impurity removal device as described in claim 2, characterized in that, It also includes a drive mechanism that drives the sieve plate to reciprocate along the width direction of the nut picking machine, wherein the length direction of the first sieve hole is perpendicular to the reciprocating direction of the sieve plate.

5. The screening and impurity removal device as described in claim 1, characterized in that, One of the first sieve plate and the second sieve plate is provided with a waist-shaped hole for adjusting the position, and the other is provided with a fixing hole. Fasteners pass through the fixing hole and the waist-shaped hole to adjustably fix the first sieve plate and the second sieve plate.

6. The screening and impurity removal device as described in claim 5, characterized in that, The waist-shaped hole is provided in multiple ways, and the fixing hole is provided in multiple ways accordingly.

7. The screening and impurity removal device as described in claim 5, characterized in that, The first sieve plate includes a sieve plate portion and a connecting plate portion. The fixing hole or the waist-shaped hole is provided on the connecting plate portion. The connecting plate portion is formed by extending downward from one end of the sieve plate portion. The connecting plate portion and the sieve plate portion form a cavity for receiving the second sieve plate.

8. The screening and impurity removal device as described in claim 1, characterized in that, It also includes a dust removal fan, which is located below the screen plate and generates air that blows toward the screen plate.

9. A nut-collecting machine, characterized in that, Includes a screening and impurity removal device as claimed in any one of claims 1 to 8.

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