A nut shelling and winnowing integrated machine

Abstract

The application discloses a nut shelling and winnowing integrated machine, which comprises a rack, a shelling part and a winnowing part installed on the rack; the shelling part comprises a concave plate screen, an upper cover body and a shelling roller; the rack is provided with an upper frame body, the upper cover body is installed on the upper side of the upper frame body and can be opened and closed relative to the upper frame body; the rack is provided with two support parts below the upper frame body, two L-shaped ears are formed on the two sides of the concave plate screen, and the two support parts support the two ears respectively; the support parts can move relative to the rack so as to switch the concave plate screen between high and low positions; when the concave plate screen is in the low position, the concave plate screen can be pulled away from the support parts; when the concave plate screen is in the high position, the upper end of the concave plate screen is arranged in the upper frame body, and the support part abuts against the elbow position of the corresponding ear. The application can solve the problems of reciprocating vibration and axial displacement of the concave plate screen while ensuring that the concave plate screen can be conveniently disassembled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nut shelling, in particular to a nut shelling and winnowing integrated machine. BACKGROUND

[0002] At present, it is necessary to use shelling machines to shell nuts such as peanuts in batches to improve work efficiency. The applicant's prior application CN113016261A discloses a small-sized shelling machine for seed peanuts, which can shell peanuts and perform winnowing operation. However, the following problems exist in this scheme:

[0003] (1) In order to facilitate cleaning of the concave screen, a screen body structure that can be quickly pulled out by pulling is designed. In order to reduce the pulling resistance, a gap is left between the hanging ears on both sides of the screen body and the support part, which causes the concave screen to be eccentric to the drum, the concave screen to vibrate back and forth and axially displace during the shelling process. In addition, the main technical problem solved by the present application is.

[0004] (2) The shelling plate is fixed relative to the central shaft, so that the gap between the concave plates cannot be self-adaptively adjusted, which is not conducive to the shelling operation. In addition, the applicant's another prior application CN114766687A discloses a nut shelling drum. The plate mechanism in this patent can elastically translate and expand in the axial direction of the central shaft. The plate mechanism in this patent is elastically connected to the central shaft based on a sliding mechanism and a spiral spring. In actual use, the plate mechanism can be self-adaptively adjusted in too few dimensions, and the elastic expansion direction of the plate mechanism does not conform to the operation characteristics of the plate mechanism, which causes the sliding mechanism to be easily stuck. Moreover, the structure of the plate mechanism is relatively complex and the cost is relatively high. SUMMARY

[0005] The present application provides a nut shelling and winnowing integrated machine that can solve the problems of concave screen reciprocating vibration and axial displacement.

[0006] Technical scheme: In order to achieve the above-mentioned purpose, a nut shelling and winnowing integrated machine according to the present application comprises a rack, wherein the rack is provided with a shelling part and a winnowing part; the shelling part comprises a concave screen, an upper cover body and a shelling drum; the shelling drum is installed in a space surrounded by the concave screen and the upper cover body;

[0007] The rack has an upper frame body, an upper cover body is mounted on the upper side of the upper frame body and can be opened and closed relative to the upper frame body; the rack is provided with two support portions below the upper frame body, two L-shaped hanging ears are formed on the two sides of the concave screen, and the two support portions support the two hanging ears respectively; the concave screen can be pulled out from below the upper frame body; through the layout, the upper cover body can be conveniently opened, and the concave screen can be conveniently pulled out for unblocking and other treatments, and the operation of taking out and putting back the concave screen can be performed separately.

[0008] The support portion can move relative to the rack to switch the concave screen between high and low positions; when the concave screen is in the low position, the concave screen can be pulled away from the support portion; when the concave screen is in the high position, the upper end of the concave screen is placed in the upper frame body, and the support portion abuts against the elbow position in the corresponding hanging ear.

[0009] When the shelling operation is performed, the concave screen is in the high position, the upper frame body limits the axial position of the concave screen, and the support portion limits the transverse position of the concave screen, so that the position of the concave screen is fixed and cannot shake transversely and move axially during shelling, and the concave screen can stably participate in the shelling operation. When the concave screen needs to be pulled out or put in, the concave screen is switched to the low position, at this time, not only the upper end of the concave screen is placed below the upper frame body, but also the top end of the support portion is placed in the middle of the hanging ear, which does not hinder the sliding of the concave screen, and the concave screen can be conveniently pulled out with small sliding resistance.

[0010] Further, the support portion is a right-lying U-shaped structure, and the support portion can rotate relative to the rack to switch the concave screen between high and low positions; the two support portions are connected to a synchronous mechanism, the synchronous mechanism includes two connecting rods connected to the two support portions respectively, one end of each of the two connecting rods is hinged to a lifting block, and the lifting block is located between the two support portions; when the concave screen is in the high position, the two connecting rods are collinear, and thus the entire structure is in a dead point position, and the concave screen can be stably maintained in the high position for fixation.

[0011] Further, the upper frame body is fixed with a guide rail for guiding the lifting block, the guide rail has high and low pin holes, and the lifting block is fixed relative to the guide rail by a pin.

[0012] Further, the support portion includes a U-shaped body portion and a round rod fixed at one side edge of the body portion; the round rod contacts the hanging ear. In this way, the round rod and the groove wall of the hanging ear are in line contact, which can reduce the pulling resistance.

[0013] When the concave screen is in the low position, the distance between the two round rods corresponding to the two support portions is small, and the round rods are located in the middle positions of the corresponding hanging ears. The synchronous mechanism makes the two support portions rotate at the same speed in opposite directions, so that the two round rods rise and the distance between the two round rods increases at the same time, until the two round rods respectively abut against the outer side corner positions of the two hanging ears.

[0014] Further, the shelling drum comprises a middle shaft and a plurality of beating plate assemblies arranged in a circumferential array around the middle shaft, the beating plate assemblies being connected to the middle shaft by elastic plate members; each beating plate assembly comprises a flexible beating plate and first and second support plates respectively arranged on two sides of the flexible beating plate; the first and second support plates are both L-shaped and have long sides and short sides, and the long sides of the two support plates are both fixedly attached to the flexible beating plate; the short side of the first support plate supports the inner side end surface of the flexible beating plate; and the short side of the second support plate is away from the flexible beating plate, and the outer side edge of the elastic plate member is located at the inner corner position of the second support plate.

[0015] With the above structure, on the one hand, the elastic plate members are used to replace the elastic telescopic members, so that the beating plate assemblies can have more degrees of freedom for self-adaptive adjustment in the shelling operation, such as being slightly twisted in multiple dimensions to adapt to the uneven distribution of nuts on the concave screen; compared with the prior art in which the elastic telescopic members only have axial telescopic freedom, the elastic plate members of the present application are obviously more suitable for the actual use requirements of the beating plate assemblies, and there is no problem of being stuck.

[0016] On the other hand, the outer side edge of the elastic plate member abuts against the short side root of the second support plate, which can facilitate positioning during installation and prevent the installation position of the second support plate from gradually shifting during the operation process, so that the beating plate assembly is not parallel to the middle shaft in the unstressed state. The short side of the first support plate supports the inner side end surface of the flexible beating plate, which can help position the flexible beating plate during installation and help the flexible beating plate resist the inward thrust during the operation process, so as to prevent the flexible beating plate from gradually shifting and being not parallel to the middle shaft in the unstressed state. In the above structure, the two L-shaped support plates can be used to position the flexible beating plate and prevent it from shifting during use by reasonable arrangement, which is low in cost and convenient to install.

[0017] In the axial direction of the middle shaft, the width of the elastic plate member is less than the length of the beating plate assembly (the first support plate, the second support plate and the flexible beating plate are equal in length and are installed in alignment), and preferably the width of the elastic plate member is not greater than 1 / 3 of the length of the beating plate assembly, so that during the operation process, the beating plate assembly can fully adapt to the uneven distribution of shelled peanuts by self-adaptive adjustment of the pose.

[0018] The beating plate assembly is fixed on the elastic plate component by means of countersunk screws, when the shelling drum rotates, the first support plate faces forward, and the head of the countersunk screw is in contact with the long side of the first support plate and does not protrude from the long side of the first support plate, so that the head of the countersunk screw does not break the kernel when participating in beating nuts.

[0019] Further, the elastic plate component is composed of a first elastic plate connected to the middle shaft and a second elastic plate connected to the beating plate assembly; the first elastic plate and the second elastic plate have an overlapping portion, and the area of the overlapping portion can be changed; by changing the area of the overlapping portion, the overall rigidity of the elastic plate component can be adjusted to adapt to nuts of different hardness. When the nuts are hard, the rigidity of the elastic plate component can be increased, and when the nuts are hard, the rigidity of the elastic plate component can be reduced. The first elastic plate has a circular hole, the second elastic plate has a first slot, and the two elastic plates are fixedly connected by screws. In addition, the position of the second elastic plate relative to the middle shaft can be adjusted to further adjust the gap between the concave plates after adjusting the rigidity of the elastic plate component.

[0020] Further, the middle shaft is fixed with a shaft sleeve, and the shaft sleeve has a fixing groove; the end of the second elastic plate has a second slot and is fixed in the fixing groove by a bolt. The above fixing structure can offset the installation of the second elastic plate relative to the axis of the middle shaft. When the shelling drum is running, the end surface of the beating plate assembly away from the middle shaft faces forward, and the reaction force of the nuts impacting the beating plate assembly causes the elastic plate component to bend towards the middle shaft. Therefore, when the material on the concave screen is more, the reaction force of the material on the flexible beating plate can increase the gap between the flexible beating plate and the concave screen, so that the concave gap has the ability to adaptively adjust the size, which is more in line with the characteristics of nut shelling than the prior art elastic expansion scheme. When the material is unevenly distributed on the concave screen, the beating plate assembly can twist the elastic plate component relative to the shaft sleeve to make the gaps between the two concave plates different, which is more suitable for shelling when the material is unevenly distributed.

[0021] Further, the wind selection component includes a fan, a chute, an upper guide plate and a lower guide plate; the upper guide plate and the lower guide plate are placed below the concave screen, and form a gradually narrowing guide channel therebetween; the chute is located below the guide channel, the chute is installed obliquely, and the fan blows air flow against the downward direction of the chute. The air flow blown by the fan can blow out the impurities in the material during the process of falling to the chute, so that the impurities are discharged from the upper end of the chute, and the nut kernels are discharged from the lower end of the chute.

[0022] Beneficial effects: The nut shelling and winnowing all-in-one machine has the following technical effects:

[0023] (1) by enabling the support part to move relative to the frame, the concave screen is switched between high and low positions, when shelling, the concave screen is in the high position, the upper frame body limits the axial position of the concave screen, and the support part limits the transverse position of the concave screen, so that the position of the concave screen is fixed and cannot shake transversely and move axially during shelling, and the concave screen can stably participate in shelling. In addition, when the concave screen needs to be pulled out, the concave screen can be switched to the low position, which is convenient to operate.

[0024] (2) The beating plate structure is redesigned, which is simple in structure and low in cost on the one hand, and can adapt to the material for multi-degree-of-freedom self-adaptive adjustment to realize self-adaptive change of the gap between the concave plates, and is more in line with the operation characteristics of shelling. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural diagram of a nut shelling and air separation all-in-one machine;

[0026] Figure 2 is a first state structural diagram of the upper half of the nut shelling and air separation all-in-one machine;

[0027] Figure 3 is a second state structural diagram of the upper half of the nut shelling and air separation all-in-one machine;

[0028] Figure 4 is a combined structural diagram of the shelling drum and the concave screen;

[0029] Figure 5 is a combined side view structural diagram of the elastic plate part and the beating plate assembly;

[0030] Figure 6 is a combined front view structural diagram of the elastic plate part and the beating plate assembly;

[0031] In the figure: A-shelling part; B-air separation part; 1-frame; 11-upper frame body; 12-support part; 12a-body part; 12b-round rod; 2-concave screen; 21-hanging ear; 3-upper cover body; 3a-hopper; 4-shelling drum; 41-middle shaft; 42-elastic plate part; 42a-first elastic plate; 42b-second elastic plate; 421-first strip-shaped hole; 422-second strip-shaped hole; 43-first support plate; 44-second support plate; 45-flat head screw; 46-shaft sleeve; 47-flexible beating plate; 5-synchronous mechanism; 51-connecting rod; 52-lifting block; 53-guiding rail; 6-slide; 7-upper material guiding plate; 8-lower material guiding plate; 9-fan. DETAILED DESCRIPTION

[0032] The application will be further described below in conjunction with the drawings.

[0033] As Figure 1The illustrated nut shelling and winnowing integrated machine comprises a frame 1, a shelling part A and a winnowing part B are installed on the frame 1; the shelling part A comprises a concave screen 2, an upper cover body 3 and a shelling roller 4; the shelling roller 4 is installed in the space surrounded by the concave screen 2 and the upper cover body 3. A hopper 3a is installed on the upper side of the upper cover body 3 to facilitate feeding.

[0034] The winnowing part B comprises a fan 9, a chute 6, an upper guide plate 7 and a lower guide plate 8; the upper guide plate 7 and the lower guide plate 8 are placed below the concave screen 2 and form a gradually narrowing guide channel therebetween; the chute 6 is located below the guide channel, the chute 6 is installed obliquely, and the fan 9 blows air flow against the sliding direction of the chute 6. The air flow blown by the fan 9 can blow out the impurities in the material during the process of the material falling into the chute 6, so that the impurities are discharged from the upper end of the chute 6 and the nut kernels are discharged from the lower end of the chute 6.

[0035] As shown in the drawings, Figure 2 The frame 1 has an upper frame body 11, the upper cover body 3 is installed on the upper side of the upper frame body 11 and can be opened and closed relative to the upper frame body 11; two support parts 12 are installed on the frame 1 below the upper frame body 11, two L-shaped hanging ears 21 are formed on the two sides of the concave screen 2, and the two support parts 12 support the two hanging ears 21 respectively; the concave screen 2 can be pulled out from below the upper frame body 11; through this layout, the upper cover body 3 can be easily opened, and the concave screen 2 can be easily pulled out for unblocking and other treatments, and the operation of taking out and installing the concave screen 2 can be performed separately.

[0036] The support part 12 can move relative to the frame 1 to switch the concave screen 2 between high and low positions; as shown in the drawings, Figure 2 When the concave screen 2 is in the low position, the concave screen 2 can be pulled away from the support part 12; as shown in the drawings, Figure 3 When the concave screen 2 is in the high position, the upper end of the concave screen 2 is placed in the upper frame body 11, and the support part 12 abuts against the outer corner position in the corresponding hanging ear 21.

[0037] When shelling operation is performed, the concave screen 2 is in the high position, the upper frame body 11 limits the axial position of the concave screen 2, and the support part 12 limits the lateral position of the concave screen 2, so that the position of the concave screen 2 is fixed and cannot shake laterally and move axially during shelling, and the concave screen 2 can stably participate in shelling. When the concave screen 2 needs to be pulled out or installed, the concave screen 2 is switched to the low position, at this time, not only the upper end of the concave screen 2 is placed below the upper frame body 11, but also the top end of the support part 12 is placed in the middle of the hanging ear 21, which does not hinder the sliding of the concave screen 2, and the concave screen 2 can be easily pulled out with small sliding resistance.

[0038] The support part 12 is a right-lying U-shaped structure, and the support part 12 can rotate relative to the frame 1 to switch the concave screen 2 between high and low positions; both of the support parts 12 are connected with a synchronous mechanism 5, the synchronous mechanism 5 includes two connecting rods 51 connected with the two support parts 12 respectively, one end of each of the two connecting rods 51 is hinged on a lifting block 52, and the lifting block 52 is located between the two support parts 12; when the concave screen 2 is in the high position, the two connecting rods 51 are collinear, thus the whole structure is in a dead point position, and the concave screen 2 can be stably kept in the high position for fixing. The upper frame body 11 is fixed with a guide rail 53 for guiding the lifting block 52, the guide rail 53 has high and low pin hole, and the lifting block 52 is fixed relative to the guide rail 53 through a pin.

[0039] Preferably, the support part 12 includes a U-shaped body part 12a and a round rod 12b fixed at one side edge of the body part 12a; the round rod 12b is in contact with the lug 21. Thus, the line contact between the round rod 12b and the inner wall of the lug 21 can reduce the pulling resistance.

[0040] When the concave screen 2 is in the low position, the distance between the two round rods 12b corresponding to the two support parts 12 is small, and the round rod 12b is located in the middle position of the corresponding lug 21. The synchronous mechanism 5 makes the two support parts 12 rotate at the same speed and in opposite directions, so that the distance between the two round rods 12b increases while the two round rods 12b rise, until the two round rods 12b respectively abut against the turning positions of the two lugs 21.

[0041] As shown in Figure 4 The above shelling drum 4 includes a middle shaft 41 and a plurality of beating plate assemblies arranged around the circumference of the middle shaft 41, and the beating plate assemblies are connected with the middle shaft 41 through elastic plate parts 42; the beating plate assembly includes a flexible beating plate 47 and first and second support plates 43 and 44 respectively arranged on the two sides of the flexible beating plate 47; the first and second support plates 43 and 44 are both L-shaped, and each has a long side and a short side, and the long sides of the two are fixedly attached to the flexible beating plate 47; the short side of the first support plate 43 supports the inner end surface of the flexible beating plate 47; the short side of the second support plate 44 is away from the flexible beating plate 47, and the outer side edge of the elastic plate part 42 is located at the inner corner position of the second support plate 44.

[0042] With the above structure, on the one hand, the elastic plate component 42 is used to replace the elastic expansion component, so that the beating plate assembly can have more self-adaptive adjustment freedom in the shelling operation, such as the beating plate assembly can be slightly twisted in multiple dimensions to adapt to the uneven distribution of nuts on the concave plate screen 2. Compared with the previous application of the elastic expansion component which only has axial expansion freedom, the elastic plate component 42 of the present application is obviously more in line with the actual use requirements of the beating plate assembly, and there is no problem of being stuck.

[0043] On the other hand, the outer side edge of the elastic plate component 42 abuts against the short edge root of the second support plate 44, which can facilitate positioning during installation and prevent the installation position of the second support plate 44 from gradually shifting during operation, causing the beating plate assembly to be non-parallel to the central shaft 41 in the unstressed state. The short edge of the first support plate 43 supports the inner side end face of the flexible beating plate 47, which can help position the flexible beating plate 47 during installation and help the flexible beating plate 47 resist inward thrust during operation, preventing the flexible beating plate 47 from gradually shifting and becoming non-parallel to the central shaft 41 in the unstressed state. In the above structure, two L-shaped support plates are used to position the flexible beating plate 47 and prevent it from shifting during use, which is low in cost and easy to install.

[0044] As shown in Figure 6 In the axial direction of the central shaft 41, the width of the elastic plate component 42 is less than the length of the beating plate assembly (the first support plate 43, the second support plate 44, and the flexible beating plate 47 are equal in length and installed in alignment), preferably the width of the elastic plate component 42 is not greater than 1 / 3 of the length of the beating plate assembly. In this way, during operation, the beating plate assembly can fully adapt to the uneven distribution of shelled peanuts to adjust the pose.

[0045] The beating plate assembly is fixed to the elastic plate component 42 by means of the countersunk screw 45. When the shelling drum 4 rotates, the first support plate 43 faces forward, and the head of the countersunk screw 45 is in contact with the long edge of the first support plate 43 and does not protrude from the long edge of the first support plate 43. In this way, the head of the countersunk screw 45 will not break the kernel when participating in hitting nuts.

[0046] As shown in Figure 5As shown, the elastic plate component 42 is composed of a first elastic plate 42a connecting the middle shaft 41 and a second elastic plate 42b connecting the beating plate assembly; the first elastic plate 42a and the second elastic plate 42b have an overlapping portion, and the area of the overlapping portion can be changed; by changing the area of the overlapping portion, the overall rigidity of the elastic plate component 42 can be adjusted to adapt to nuts of different hardness. When the nuts are relatively hard, the rigidity of the elastic plate component 42 can be increased; when the nuts are relatively soft, the rigidity of the elastic plate component 42 can be decreased. The first elastic plate 42a has a circular hole, the second elastic plate 42b has a first slotted hole 421, and the two elastic plates are fixedly connected by a screw; in addition, the position of the second elastic plate 42b relative to the middle shaft 41 can be adjusted, so that after the rigidity of the elastic plate component 42 is adjusted, the recess plate gap can be further adjusted by adjusting the position of the second elastic plate 42b.

[0047] The middle shaft 41 is fixed with a shaft sleeve 46, the shaft sleeve 46 has a fixing groove, the end of the second elastic plate 42b has a second slotted hole 422, and is fixed in the fixing groove by a bolt. By using the above fixing structure, the second elastic plate 42b can be installed offset relative to the axis of the middle shaft 41; when the shelling drum 4 is running, the end face of the beating plate assembly away from the middle shaft 41 faces forward, and the reaction force of the nuts impacting the beating plate assembly makes the elastic plate component 42 bend to the side of the middle shaft 41; thus, when the material on the recess plate sieve 2 is relatively large, the reaction force of the material on the flexible beating plate 47 can make the gap between the flexible beating plate 47 and the recess plate sieve 2 increase, so that the recess plate gap has the ability to adaptively adjust the size, which is more in line with the characteristics of nut shelling than the prior elastic expansion scheme. When the material on the recess plate sieve 2 is unevenly distributed, the beating plate assembly can make the elastic plate component 42 twist relative to the shaft sleeve 46, so that the gaps on both sides of the recess plate are not the same, which is more suitable for the shelling needs when the material is unevenly distributed.

[0048] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A nut shelling and winnowing integrated machine, comprising a frame (1) on which a shelling part (A) and a winnowing part (B) are installed; the shelling part (A) comprises a concave screen (2), an upper cover body (3) and a shelling roller (4); the shelling roller (4) is installed in a space surrounded by the concave screen (2) and the upper cover body (3); the frame (1) has an upper frame body (11); the upper cover body (3) is installed on the upper side of the upper frame body (11) and can be opened and closed by rotating relative to the upper frame body (11); the frame (1) is installed with two support parts (12) below the upper frame body (11), two L-shaped hanging ears (21) are formed on the two sides of the concave screen (2), and the two support parts (12) support the two hanging ears (21) respectively; the concave screen (2) can be pulled out from below the upper frame body (11); characterized in that: the support part (12) can move relative to the frame (1) to switch the concave screen (2) between high and low positions; when the concave screen (2) is in the low position, the concave screen (2) can be pulled away from the support part (12); when the concave screen (2) is in the high position, the upper end of the concave screen (2) is placed in the upper frame body (11), and the support part (12) abuts against the elbow position of the corresponding hanging ear (21); the support part (12) is a right-lying U-shaped structure, and the support part (12) can rotate relative to the frame (1) to switch the concave screen (2) between high and low positions; the two support parts (12) are connected to a synchronous mechanism (5), the synchronous mechanism (5) comprises two connecting rods (51) connected to the two support parts (12) respectively, one end of each connecting rod (51) is hinged to a lifting block (52), and the lifting block (52) is located between the two support parts (12); when the concave screen (2) is in the high position, the two connecting rods (51) are collinear.

2. The integrated nut shelling and winnowing machine of claim 1, wherein, a guide rail (53) for guiding the lifting block (52) is fixed on the upper frame body (11), the guide rail (53) has high and low pin holes, and the lifting block (52) is fixed relative to the guide rail (53) by a pin.

3. The integrated nut shelling and winnowing machine of claim 1, wherein, the support part (12) comprises a U-shaped body part (12a) and a round rod (12b) fixed at one side edge of the body part (12a); the round rod (12b) is in contact with the hanging ear (21).

4. The integrated nut shelling and winnowing machine of claim 1, wherein, The shell-off drum (4) comprises a middle shaft (41) and a plurality of beating plate assemblies arranged in a circumferential array around the middle shaft (41), the beating plate assemblies being connected to the middle shaft (41) through elastic plate members (42); the beating plate assembly comprises a flexible beating plate (47) and first and second support plates (43, 44) respectively arranged on two sides of the flexible beating plate (47); the first and second support plates (43, 44) are both L-shaped and have long and short sides respectively; the short side of the first support plate (43) supports the inner end surface of the flexible beating plate (47); the short side of the second support plate (44) is away from the flexible beating plate (47), and the outer edge of the elastic plate member (42) is arranged at the inner corner position of the second support plate (44).

5. The integrated nut shelling and winnowing machine of claim 4, wherein, The elastic plate member (42) is composed of a first elastic plate (42a) connected to the middle shaft (41) and a second elastic plate (42b) connected to the beating plate assembly; the first and second elastic plates (42a, 42b) have an overlapping portion, and the area of the overlapping portion can be changed.

6. The integrated nut shelling and winnowing machine of claim 5, wherein, The middle shaft (41) is fixed with a shaft sleeve (46) having a fixing groove; the end of the second elastic plate (42b) has a second slot (422) and is fixed in the fixing groove through a bolt.

7. The integrated nut shelling and winnowing machine of claim 1, wherein, The winnowing component (B) comprises a fan (9), a chute (6), an upper material guide plate (7) and a lower material guide plate (8); the upper and lower material guide plates (7, 8) are arranged below the concave screen (2) and form a gradually narrowing guide channel therebetween; the chute (6) is located below the guide channel and is installed obliquely; the fan (9) blows air against the sliding direction of the chute (6).

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