Ear picking plate gap adjusting mechanism and ear picking device

Abstract

The utility model provides an ear picking plate gap adjusting mechanism and an ear picking device, and relates to the technical field of agricultural equipment.The ear picking plate gap adjusting mechanism comprises an ear picking frame, a guide chain plate, an adjusting assembly and ear picking plates; the ear picking frame comprises a first frame body and a second frame body which are symmetrically arranged in the first direction, and a mounting groove is formed in the end, away from the second frame body, of the first frame body. The adjusting assembly is arranged in the mounting groove and is provided with a moving end; the ear picking plate comprises a first plate body and a second plate body, the first plate body is arranged in the mounting groove and connected with the moving end, the first plate body is located between the guide chain plate and the groove bottom of the mounting groove, and the second plate body is arranged on the second frame body and located between the frame body and the guide chain plate. The ear picking plate does not need to occupy space on an ear picking frame, the gap between the first plate body and the second plate body is adjusted on the premise that the installation space on the ear picking frame is not occupied, and therefore the manufacturing error between the two ear picking plates can be adjusted according to the use condition.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to an ear picking plate gap adjustment mechanism and an ear picking device. Background Art

[0002] The ear picking plate is an agricultural machinery component, mainly used in corn harvesters. Its function is to pick corn ears from the stalks.

[0003] The design and installation of the ear picking plate have certain clearance requirements, with a front clearance of 3 cm and a rear clearance of 3.5 to 4 cm. In order to reduce the entry of weeds and broken stems into the machine, the opening of the ear picking plate should be widened as much as possible. This design helps to improve the efficiency and quality of corn harvesting while reducing the interference of impurities and broken stems.

[0004] The existing small-row-spacing corn header cannot add a gap adjustment mechanism for the ear picking plates due to its compact structure, resulting in the inability to adjust the gap between the two ear picking plates and the inability to adjust the manufacturing error according to the use conditions. Utility Model Content

[0005] The utility model aims to provide an ear picking plate gap adjustment mechanism to alleviate the technical problem in the prior art that the gap between two ear picking plates cannot be adjusted and the manufacturing error cannot be adjusted according to the use conditions.

[0006] The utility model provides an ear-picking plate gap adjustment mechanism, comprising an ear-picking frame, a chain guide plate, an adjustment component and an ear-picking plate; the ear-picking frame comprises a first frame body and a second frame body symmetrically arranged along a first direction, an end of the first frame body away from the second frame body is provided with a mounting groove, and a through hole is provided in the mounting groove; the chain guide plate is arranged on the ear-picking frame, and a surface of the chain guide plate close to the ear-picking frame is provided with at least two limit members, and the limit members are arranged at intervals along the first direction; the adjustment component is arranged in the mounting groove, and the adjustment component has a movable end, and the movable end can move perpendicular to the first direction; the ear-picking plate comprises a first plate body and a second plate body, the first plate body is arranged in the mounting groove and connected to the movable end, the first plate body is located between the chain guide plate and the groove bottom of the mounting groove, and the first plate body is arranged between two adjacent limit members, and the second plate body is arranged on the second frame body and located between the frame body and the chain guide plate.

[0007] Furthermore, the adjustment assembly includes a rotating adjustment rod, a driving member and a swinging member; the rotating adjustment rod is arranged in the installation groove and extends along the first direction; the driving member is arranged below the ear picking frame and is transmission connected with the rotating adjustment rod to drive the rotating adjustment rod to rotate; one end of the swinging member is the moving end, the moving end is provided with an adjustment groove extending in the vertical direction, and the other end is transmission connected with the rotating adjustment rod; a connecting rod is provided on one side of the first plate body, and the connecting rod is arranged in the adjustment groove.

[0008] Furthermore, there are two swing members and two connecting rods; the two swing members are arranged at intervals along the first direction, and the two swing members are arranged opposite to the two connecting rods.

[0009] Furthermore, the adjustment component also includes a rotating arm; a limit seat is provided on the groove wall of the mounting groove, and an axial hole is provided on the limit seat; one end of the rotating arm is located in the mounting groove, and the other end passes through the bottom of the mounting groove and is connected to the driving member; the rotating adjustment rod is arranged in the axial hole and is connected to one end of the rotating arm located in the mounting groove.

[0010] Furthermore, an end of the rotating arm away from the rotating adjustment rod is provided with a long hole extending in the vertical direction; the driving member is a linear driving member, the driving direction of the linear driving member is perpendicular to the first direction, and the driving end of the linear driving member is provided with a transmission rod, and the transmission rod is inserted into the long hole and can move in the long hole.

[0011] Furthermore, there are two limit seats; the two limit seats are respectively arranged on two opposite groove walls of the installation groove; and the two ends of the rotation adjustment rod are respectively inserted into the two limit seats.

[0012] Furthermore, the limit seat is a triangular structure; a connecting screw hole is arranged on the groove wall of the mounting groove; the axial hole is arranged at a corner of the triangular structure, and two connecting holes are arranged in the horizontal direction on the side of the triangular structure away from the axial hole, the triangular structure is locked to the connecting screw hole by bolts, and the axial hole is located below the connecting screw hole.

[0013] Furthermore, the limiting member is a limiting block; there are two limiting blocks, the two limiting blocks are fixedly arranged on the bottom surface of the chain guide plate, and the two limiting blocks are respectively abutted against two ends of the first plate body.

[0014] Furthermore, the limit block is connected to the chain guide plate by welding.

[0015] The utility model also aims to provide an ear picking device, including an ear picking plate gap adjustment mechanism.

[0016] Beneficial effects:

[0017] The utility model provides an ear-picking plate gap adjustment mechanism, which comprises an ear-picking frame, a chain guide plate, an adjustment component and an ear-picking plate; the ear-picking frame comprises a first frame body and a second frame body symmetrically arranged along a first direction, an end of the first frame body away from the second frame body is provided with a mounting groove, and a through hole is provided in the mounting groove; the chain guide plate is arranged on the ear-picking frame, and at least two limit members are provided on a surface of the chain guide plate close to the ear-picking frame, and the limit members are arranged at intervals along the first direction; the adjustment component is arranged in the mounting groove, and the adjustment component has a movable end, and the movable end can move perpendicular to the first direction; the ear-picking plate comprises a first plate body and a second plate body, the first plate body is arranged in the mounting groove and connected to the movable end, the first plate body is located between the chain guide plate and the groove bottom of the mounting groove, and the first plate body is arranged between two adjacent limit members, and the second plate body is arranged on the second frame and between the frame body and the chain guide plate.

[0018] Specifically, one end of the ear picking frame in the utility model is provided with a mounting groove, and the adjustment component is arranged in the mounting groove and connected with the first plate body. There is no need to install a gap adjustment mechanism on the ear picking frame to occupy the installation space on the ear picking frame. When the movable end of the adjustment component moves perpendicular to the first direction, it can drive the first plate body to move together. The second plate body is arranged on the second frame body and fixed in position. When the first plate body moves perpendicular to the first direction, it can adjust the gap between the first plate body and the second plate body, thereby adjusting the gap between the first plate body and the second plate body, and the chain guide plate is arranged on the top of the ear picking plate to avoid the ear picking plate from moving up and down, and the limiter at the bottom of the chain guide plate can avoid the first plate body from moving along the first direction. The utility model adds an adjustment component to the first plate body by arranging a mounting groove at the end of the ear picking frame, and does not need to occupy space on the ear picking frame. It realizes the adjustment of the gap between the first plate body and the second plate body under the premise of avoiding occupying the installation space on the ear picking frame, thereby realizing the ability to adjust the manufacturing error between the two ear picking plates according to the use conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of the ear picking plate gap adjustment mechanism provided in the embodiment of the utility model Figure 1 ;

[0021] Figure 2 A schematic diagram of the structure of the ear picking plate gap adjustment mechanism provided in the embodiment of the utility model Figure 2 ;

[0022] Figure 3 A schematic diagram of the transmission structure of the ear picking plate and the adjustment component of the ear picking plate gap adjustment mechanism provided in an embodiment of the utility model;

[0023] Figure 4 A schematic diagram of the structure of an ear picking plate of an ear picking plate gap adjustment mechanism provided in an embodiment of the utility model;

[0024] Figure 5 A schematic structural diagram of an adjustment component of an ear picking plate gap adjustment mechanism provided in an embodiment of the utility model.

[0025] icon:

[0026] 100 - ear picking frame; 110 - first frame body; 111 - mounting slot; 112 - limit seat; 120 - second frame body;

[0027] 200-chain guide plate;

[0028] 300 - adjustment assembly; 310 - rotating adjustment rod; 320 - swing member; 321 - adjustment slot; 330 - rotating arm;

[0029] 400 - ear picking plate; 410 - connecting rod. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0037] See also Figures 1 to 5 The ear picking plate gap adjustment mechanism provided in this embodiment includes an ear picking frame 100 , a chain guide plate 200 , an adjustment component 300 and an ear picking plate 400 .

[0038] The ear picking frame 100 includes a first frame 110 and a second frame 120 symmetrically arranged along a first direction, and an installation groove 111 is provided at one end of the first frame 110 away from the second frame 120, and a through hole is provided in the installation groove 111. The chain guide plate 200 is arranged on the ear picking frame 100, and at least two limiters are provided on the side of the chain guide plate 200 close to the ear picking frame 100, and the limiters are arranged at intervals along the first direction. The adjustment component 300 is arranged in the installation groove 111, and the adjustment component 300 has a moving end, and the moving end can move perpendicular to the first direction. The ear picking plate 400 includes a first plate body and a second plate body, the first plate body is arranged in the installation groove 111 and connected to the moving end, the first plate body is located between the chain guide plate 200 and the bottom of the installation groove 111, and the first plate body is arranged between two adjacent limiters, and the second plate body is arranged in the second frame 120 and located between the frame and the chain guide plate 200.

[0039] Specifically, the adjustment assembly 300 in this embodiment is disposed in the installation groove 111 and connected to the first plate body, and there is no need to install a gap adjustment mechanism on the ear picking frame 100 to occupy the installation space on the ear picking frame 100 .

[0040] When the moving end of the adjustment component 300 moves perpendicularly to the first direction, it can drive the first plate to move together. The second plate is fixedly arranged on the second frame 120. When the first plate moves perpendicularly to the first direction, the gap between the first plate and the second plate can be adjusted, thereby adjusting the gap between the first plate and the second plate.

[0041] Furthermore, during the movement of the first plate body, the chain guide plate 200 disposed on the top of the ear picking plate 400 can prevent the ear picking plate 400 from moving up and down, and the limiting piece at the bottom of the chain guide plate 200 can prevent the ear picking plate 400 from moving along the first direction.

[0042] In this embodiment, a mounting groove 111 is set at the end of the ear picking frame 100, and an adjustment component 300 is added in the mounting groove 111 to be connected with the first plate body. There is no need to occupy space on the ear picking frame 100. The gap between the two ear picking plates 400 can be adjusted without occupying the installation space on the ear picking frame 100, so that the manufacturing error between the two ear picking plates 400 can be adjusted according to the usage conditions.

[0043] In this embodiment, the adjustment assembly 300 includes a rotating adjustment rod 310, a driving member and a swinging member 320. The rotating adjustment rod 310 is arranged in the installation groove 111 and extends along the first direction. The driving member is arranged below the ear picking frame 100 and is transmission-connected with the rotating adjustment rod 310 to drive the rotating adjustment rod 310 to rotate. One end of the swinging member 320 is a moving end, and the moving end is provided with an adjustment groove 321 extending in the vertical direction, and the other end is transmission-connected with the rotating adjustment rod 310. A connecting rod 410 is arranged on one side of the first plate body, and the connecting rod 410 is arranged in the adjustment groove 321.

[0044] Specifically, in this embodiment, when the gap is adjusted, the driving member drives the rotating adjustment rod 310 to rotate, thereby driving the swing member 320 to rotate together. Since the bottom end of the swing member 320 is connected to the rotating adjustment rod 310, the top end of the swing member 320 swings perpendicularly to the first direction. During the movement of the swing member 320, the connecting rod 410 is moved perpendicularly to the first direction. The horizontal height of the connecting rod 410 in the adjustment groove 321 remains unchanged, and the connecting rod 410 moves in the adjustment groove 321 along the extension direction of the adjustment groove 321 to move perpendicularly to the first direction, thereby realizing the horizontal movement of the first plate body, so that the first plate body moves closer to or away from the second plate body, and then the gap between the first plate body and the second plate body is adjusted.

[0045] In this embodiment, there are two swing members 320 and two connecting rods 410. The two swing members 320 are arranged at intervals along the first direction, and the two swing members 320 and the two connecting rods 410 are arranged opposite to each other.

[0046] The two swing members 320 and the two connecting rods 410 are matched and spaced apart along the first direction, so as to realize the movement of two points of the first plate, thereby ensuring the force balance of the first plate and preventing the first plate from tilting when it moves due to the movement.

[0047] In this embodiment, the adjustment assembly 300 further includes a rotating arm 330. A stopper seat 112 is provided on the wall of the mounting groove 111, and an axial hole is provided on the stopper seat 112. One end of the rotating arm 330 is located in the mounting groove 111, and the other end passes through the groove bottom of the mounting groove 111 and is connected to the driving member. The rotating adjustment rod 310 is provided in the axial hole and is connected to one end of the rotating arm 330 located in the mounting groove 111.

[0048] The driving member drives the bottom end of the rotating arm 330 to move in a vertical first direction, and the top end of the rotating arm 330 is connected to the rotating adjustment rod 310 and the rotating adjustment rod 310 is inserted into the shaft hole. Under this structure, the position of the rotating arm 330 is fixed. When the bottom end of the rotating arm 330 moves, the top end of the rotating arm 330 rotates, thereby driving the rotating adjustment rod 310 to rotate together, thereby realizing the driving of the swing member 320.

[0049] In this embodiment, a long hole extending in the vertical direction is provided at one end of the rotating arm 330 away from the rotating adjustment rod 310. The driving member is a linear driving member, the driving direction of the linear driving member is perpendicular to the first direction, and a transmission rod is provided at the driving end of the linear driving member, and the transmission rod is inserted into the long hole and can move in the long hole.

[0050] The transmission rod moves horizontally and perpendicularly to the first direction under the drive of the linear drive component. Since the top end of the rotating arm 330 is connected to the rotating adjustment rod 310, and the rotating adjustment rod 310 is inserted in the shaft hole, the top end of the rotating arm 330 can only rotate but cannot swing. In the process of pushing the bottom end of the rotating arm 330, the transmission rod moves in the long hole, thereby converting the linear motion into the rotational motion of the rotating adjustment rod 310.

[0051] In this embodiment, there are two limit seats 112. The two limit seats 112 are respectively arranged on two opposite groove walls of the installation groove 111. The two ends of the rotation adjustment rod 310 are respectively inserted into the two limit seats 112.

[0052] The two limiting seats 112 are both provided with shaft holes, and the two ends of the rotation adjustment rod 310 are respectively inserted into the shaft holes of the two limiting seats 112, thereby improving the structural strength of the rotation structure of the rotation adjustment rod 310.

[0053] In this embodiment, the limit seat 112 is a triangular structure. A connecting screw hole is provided on the groove wall of the mounting groove 111. The shaft hole is provided at a corner of the triangular structure, and two connecting holes are provided in the horizontal direction on the side of the triangular structure away from the shaft hole. The triangular structure is locked to the connecting screw hole by bolts, and the shaft hole is located below the connecting screw hole.

[0054] The triangular structure has excellent structural stability and can ensure the overall strength of the limit seat 112. In this embodiment, the triangular structure is inverted, one corner of the triangular structure faces directly downward, and the shaft hole is provided at the corner facing directly downward, the center of the shaft hole is located on the angular bisector of the corner facing directly downward, and two connecting holes are arranged at intervals in the horizontal direction at a side opposite to the corner facing directly downward, so that the limit seat 112 of the triangular structure is fixedly locked on the groove wall of the installation groove 111.

[0055] In this embodiment, the limiting member is a limiting block. There are two limiting blocks, which are fixedly arranged on the bottom surface of the chain guide plate 200 and respectively abut against two ends of the first plate body.

[0056] After the two limit blocks abut against the first plate body from both ends, the first plate body can be prevented from moving along the first direction when moving, causing the position of the first plate body to move in series.

[0057] In this embodiment, the limit block and the chain guide plate 200 are connected by welding.

[0058] The method of welding the chain guide plate 200 to the limit block is very stable, and can realize the positioning of the ear picking plate 400 without separately welding the limit block on the ear picking frame 100, thereby reducing the cost and the number of parts.

[0059] The ear picking device provided in this embodiment includes an ear picking plate gap adjustment mechanism.

[0060] Among them, the adjusting assembly 300 of the ear picking plate gap adjustment mechanism in this embodiment is arranged in the installation groove 111 and connected to the first plate body, and there is no need to install a gap adjustment mechanism on the ear picking frame 100 to occupy the installation space on the ear picking frame 100. When the moving end of the adjusting assembly 300 moves perpendicular to the first direction, it can drive the first plate body to move together. The second plate body is arranged on the second frame 120 and fixed in position. When the first plate body moves perpendicular to the first direction, it can adjust the gap between the first plate body and the second plate body, thereby adjusting the gap between the first plate body and the second plate body. In addition, during the movement of the first plate body, the chain guide plate 200 is arranged on the top of the ear picking plate 400 to prevent the ear picking plate 400 from moving up and down, and the limiter at the bottom of the chain guide plate 200 can prevent the ear picking plate 400 from moving along the first direction. After the adjustment component 300 is added to the installation groove 111 at the end of the ear picking frame 100 and connected to the first plate body, there is no need to occupy space on the ear picking frame 100. The gap between the two ear picking plates 400 can be adjusted without occupying the installation space on the ear picking frame 100, so that the manufacturing error between the two ear picking plates 400 can be adjusted according to the usage conditions.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. The ear picking plate gap adjustment mechanism is characterized by: include: An ear picking frame (100), a chain guide plate (200), an adjustment component (300) and an ear picking plate (400); The ear picking frame (100) comprises a first frame body (110) and a second frame body (120) symmetrically arranged along a first direction, an end of the first frame body (110) away from the second frame body (120) is provided with a mounting groove (111), and a through hole is provided in the mounting groove (111); The chain guide plate (200) is arranged on the ear picking frame (100), and at least two limiting members are arranged on a surface of the chain guide plate (200) close to the ear picking frame (100), and the limiting members are arranged at intervals along a first direction; The adjustment component (300) is arranged in the installation groove (111), and the adjustment component (300) has a movable end, and the movable end can move perpendicular to the first direction; The ear picking plate (400) includes a first plate body and a second plate body, the first plate body is arranged in the installation groove (111) and connected to the movable end, the first plate body is located between the chain guide plate (200) and the bottom of the installation groove (111), and the first plate body is arranged between two adjacent limiting members, and the second plate body is arranged on the second frame body (120) and is located between the frame body and the chain guide plate (200).

2. The ear picking plate gap adjustment mechanism according to claim 1, characterized in that: The adjustment assembly (300) comprises a rotating adjustment rod (310), a driving member and a swinging member (320); The rotation adjustment rod (310) is arranged in the installation groove (111) and extends along a first direction; The driving member is arranged below the ear picking frame (100) and is transmission-connected to the rotating adjustment rod (310) to drive the rotating adjustment rod (310) to rotate; One end of the swinging member (320) is the moving end, the moving end is provided with an adjustment slot (321) extending in the vertical direction, and the other end is transmission-connected to the rotating adjustment rod (310); A connecting rod (410) is provided on one side of the first plate body, and the connecting rod (410) is arranged in the adjustment groove (321).

3. The ear picking plate gap adjustment mechanism according to claim 2, characterized in that: There are two of each of the swinging member (320) and the connecting rod (410); The two swing members (320) are arranged at intervals along the first direction, and the two swing members (320) are arranged opposite to the two connecting rods (410).

4. The ear picking plate gap adjustment mechanism according to claim 2, characterized in that: The adjustment assembly (300) further includes a rotating arm (330); A limit seat (112) is provided on the groove wall of the installation groove (111), and an axial hole is provided on the limit seat (112); One end of the rotating arm (330) is located in the installation groove (111), and the other end passes through the bottom of the installation groove (111) and is connected to the driving member; The rotation adjustment rod (310) is disposed in the shaft hole and connected to one end of the rotating arm (330) located in the installation groove (111).

5. The ear picking plate gap adjustment mechanism according to claim 4, characterized in that: An end of the rotating arm (330) away from the rotating adjustment rod (310) is provided with a long hole extending in the vertical direction; The driving member is a linear driving member, the driving direction of the linear driving member is perpendicular to the first direction, and a driving rod is provided at the driving end of the linear driving member. The driving rod is inserted into the long hole and can move in the long hole.

6. The ear picking plate gap adjustment mechanism according to claim 4, characterized in that: There are two limit seats (112); The two limiting seats (112) are respectively arranged on two opposite groove walls of the installation groove (111); The two ends of the rotating adjustment rod (310) are respectively inserted into the two limiting seats (112).

7. The ear picking plate gap adjustment mechanism according to claim 6, characterized in that: The limiting seat (112) is a triangular structure; The groove wall of the installation groove (111) is provided with a connecting screw hole; The axial hole is arranged at a corner of the triangular structure, and two connecting holes are arranged in the horizontal direction on one side of the triangular structure away from the axial hole. The triangular structure is locked to the connecting screw hole by bolts, and the axial hole is located below the connecting screw hole.

8. The ear picking plate gap adjustment mechanism according to claim 1, characterized in that: The limiting member is a limiting block; There are two limit blocks, which are fixed on the bottom surface of the chain guide plate (200), and the two limit blocks are respectively in contact with two ends of the first plate body.

9. The ear picking plate gap adjustment mechanism according to claim 8, characterized in that: The limiting block is connected to the chain guide plate (200) by welding.

10. An ear picking device, characterized in that: The invention comprises the ear picking plate gap adjustment mechanism as claimed in any one of claims 1 to 9.

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