A crop conveying mechanism for a highland barley harvester

Abstract

This invention discloses a crop conveying mechanism for a barley harvester, comprising a drum and multiple sets of auxiliary conveying mechanisms dispersed along the axial direction of the drum. Each set of auxiliary conveying mechanisms is arranged in a circumferential array relative to the central axis of the drum. The drum is fixed with a tube portion for each auxiliary conveying mechanism. Each auxiliary conveying mechanism includes a movable hinge joint rotatably mounted at the end of the tube portion, and a rod, one end of which is connected to the movable hinge joint. The auxiliary conveying mechanism also includes a telescopic rod capable of sliding and rotating relative to the tube portion. The outer end of the telescopic rod has a first pin, and the rod has a first slotted hole into which the first pin is inserted. A first drive mechanism for driving the telescopic rod to extend and retract, and a second drive mechanism for driving the telescopic rod to rotate, are mounted on the drum. This crop conveying mechanism maintains the neatness of the barley crop after it has been cut by the cutter, facilitating subsequent processing.

Description

Technical Field

[0001] This invention relates to the field of barley harvesting technology, and in particular to a crop conveying mechanism for a barley harvester. Background Technology

[0002] Barley, as an important crop, has irreplaceable economic and nutritional value in plateau regions and is one of the main food sources for local residents. With the advancement of agricultural modernization, mechanized harvesting has become a key way to improve production efficiency and reduce labor intensity. However, traditional barley harvesters typically use the traditional reel structure shown in patent CN 204157300 U to guide and move the crop. While this design can accomplish the task to a certain extent, it has obvious shortcomings: First, it is difficult to precisely control the contact force of the reel on the barley crop during operation, which can easily cause lodging or damage to the crop, thus affecting the harvest quality; second, due to the design limitations of the reel, it cannot guarantee the uniformity of the crop after cutting, which brings inconvenience to subsequent processing steps such as drying and threshing. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the prior art, the present invention provides a crop conveying mechanism for a barley harvester that can maintain the uniformity of the crop after the barley has been cut.

[0004] Technical solution: To achieve the above objective, the crop conveying mechanism for a barley harvester of the present invention includes a drum and multiple sets of auxiliary conveying mechanisms dispersedly arranged along the axial direction of the drum, wherein the multiple auxiliary conveying mechanisms in each set are arranged in a circumferential array relative to the central axis of the drum.

[0005] The roller is fixed with a tube portion provided for each of the auxiliary conveying mechanisms; the auxiliary conveying mechanism includes a movable hinge joint rotatably mounted at the end of the tube portion, and also includes a rod, one end of which is connected to the movable hinge joint.

[0006] The auxiliary conveying mechanism also includes a telescopic rod that can slide and rotate relative to the tube; the outer end of the telescopic rod has a first pin, and the rod has a first slot for inserting the first pin;

[0007] The roller is equipped with a first drive mechanism for driving the telescopic rod to extend and retract, and a second drive mechanism for driving the telescopic rod to rotate.

[0008] Furthermore, the first driving mechanism includes a first driving rod that is rotatably connected to the inner end of the telescopic rod, and all the telescopic rods corresponding to all the auxiliary conveying mechanisms in the same row are connected to the same first driving rod;

[0009] The first drive rod is capable of sliding radially on the roller.

[0010] Furthermore, a first roller is mounted on the end of the first drive rod; a disc cam is mounted on the end of the roller and is fixedly mounted relative to the frame; the roller is rotatably mounted relative to the frame; the first roller is capable of moving within the groove of the disc cam.

[0011] When the drum rotates, the first roller can move along the groove in the disc cam, allowing the rod to rotate relative to the movable hinge joint, switching between two states: retracted and extended. In the retracted state, the open end of the rod rests against the outer wall of the drum, so that the rod occupies less extra space when the drum rotates. When the tube corresponding to the rod passes the lowest point, it is in the retracted state, so that the drum can descend to a lower position.

[0012] Furthermore, the second drive mechanism includes a control handle that is axially sliding relative to the telescopic rod but cannot rotate circumferentially relative to the telescopic rod; the end of the control handle has a second slotted hole; the second drive mechanism also includes a second drive rod extending axially along the roller; a plurality of second pins are mounted on the second drive rod, the number of second pins being equal to the number of auxiliary conveying mechanisms in the same row, and the second pins extending into the second slotted hole of the corresponding auxiliary conveying mechanism; the second drive rod is axially sliding on the roller.

[0013] Furthermore, an axial cam fixed relative to the frame is mounted on one end of the roller, and a second roller is mounted on the end of the second drive rod; a spring is provided between the second drive rod and the roller to keep the second roller in constant contact with the cam profile of the axial cam.

[0014] With the above structure, the drum rotates and the second roller rolls along the cam profile, which allows the rod to switch between an extended state and a horizontal state. In the extended state, the rod is perpendicular to the axis of the drum, and in the horizontal state, the rod is parallel to the axis of the drum.

[0015] In operation, a cutter is located below the drum. As the drum rotates, the auxiliary conveying mechanism rotates along with it. When the auxiliary conveying mechanism is located at the rear of the drum, its rods are in a retracted state. As it passes the lowest point of the drum and moves forward and upward, it can intervene between the barley crops from below, providing some support to the crops. When the auxiliary conveying mechanism reaches the front of the drum, the disc cam first retracts the telescopic rod via the first drive rod, causing the rod to unfold. Then, the axial cam immediately rotates the telescopic rod via the second drive rod, causing the rod to become horizontal. In this way, the rod intervenes horizontally between the barley crops. After the cutter cuts the barley, the rod holds the crop on the drum and moves it to the upper side with the drum. The barley crops are then removed by the conveying mechanism installed at the rear of the upper end of the drum. This method ensures that the barley crops are neatly arranged, facilitating subsequent processing. After the barley crops are removed, the second drive mechanism first unfolds the rod, and then the first drive mechanism retracts the rod.

[0016] Beneficial effects: The crop conveying mechanism for the barley harvester of the present invention has the following beneficial effects:

[0017] The crop conveying mechanism for a barley harvester using the present invention has a rod that can switch between a retracted state, an extended state, and a horizontal state. This allows the rod to intervene between the barley crops in the retracted state and sequentially change to the extended and horizontal states, thereby holding the barley crops between the roller and the rod. This maintains the neatness of the barley crops after they are cut by the cutter, facilitating subsequent processing. Attached Figure Description

[0018] Figure 1 A front view structural diagram of the crop conveying mechanism used in a barley harvester;

[0019] Figure 2 A side view of the crop conveying mechanism for a barley harvester;

[0020] Figure 3 A three-dimensional structural diagram of the crop conveying mechanism used in a barley harvester;

[0021] Figure 4 A combined structural diagram of the auxiliary conveying mechanism, the first drive mechanism, and the second drive mechanism;

[0022] Figure 5 for Figure 1 AA section view in the image.

[0023] In the figure: 1-roller; 2-tube; 3-movable hinge joint; 4-rod; 4a-first strip hole; 5-telescopic rod; 5a-first pin; 6-first drive mechanism; 61-first drive rod; 62-first roller; 63-disc cam; 63a-groove; 7-second drive mechanism; 71-control handle; 72-second drive rod; 73-second pin; 74-second roller; 75-spring; 76-axial cam. Detailed Implementation

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] like Figures 1 to 3 The crop conveying mechanism for the barley harvester shown includes a drum 1 and multiple sets of auxiliary conveying mechanisms distributed along the axial direction of the drum 1. The multiple auxiliary conveying mechanisms in each set are arranged in a circular array relative to the central axis of the drum 1.

[0026] like Figure 4 As shown, the roller 1 is fixed with a tube 2 provided for each of the auxiliary conveying mechanisms; the auxiliary conveying mechanism includes a movable hinge joint 3 rotatably mounted at the end of the tube 2, and also includes a rod 4, one end of which is connected to the movable hinge joint 3;

[0027] The auxiliary conveying mechanism also includes a telescopic rod 5 that can slide and rotate relative to the tube 2; the outer end of the telescopic rod 5 has a first pin 5a, and the rod 4 has a first strip hole 4a for inserting the first pin 5a.

[0028] The roller 1 is equipped with a first drive mechanism 6 that drives the telescopic rod 5 to extend and retract, and a second drive mechanism 7 that drives the telescopic rod 5 to rotate.

[0029] Preferably, the first driving mechanism 6 includes a first driving rod 61 that is rotatably connected to the inner end of the telescopic rod 5, and all the telescopic rods 5 corresponding to all the auxiliary conveying mechanisms in the same row are connected to the same first driving rod 61;

[0030] The first drive rod 61 is capable of sliding radially on the roller 1.

[0031] Preferably, a first roller 62 is mounted on the end of the first drive rod 61; a disc cam 63, which is fixedly mounted relative to the frame, is mounted on the end of the roller 1, and the roller 1 is rotatably mounted relative to the frame; as shown Figure 5 As shown, the first roller 62 can move within the groove 63a of the disc cam 63.

[0032] When the roller 1 rotates, the first roller 62 can move along the groove in the disc cam 63, so that the rod 4 can rotate relative to the movable hinge joint 3 to switch between the two states of retracted state and extended state. In the retracted state, the open end of the rod 4 is against the outer wall of the roller 1. In this way, the rod 4 occupies less extra space when the roller 1 rotates. When the tube 2 corresponding to the rod 4 passes the lowest point, it is in the retracted state, so the roller 1 can be lowered to a lower position.

[0033] Preferably, the second drive mechanism 7 includes a control handle 71 that can slide axially relative to the telescopic rod 5 but cannot rotate circumferentially relative to the telescopic rod 5; the end of the control handle 71 has a second slotted hole; the second drive mechanism 7 also includes a second drive rod 72 extending axially along the roller 1; a plurality of second pins 73 are mounted on the second drive rod 72, the number of second pins 73 being equal to the number of auxiliary conveying mechanisms in the same row, and the second pins 73 extending into the second slotted hole of the corresponding auxiliary conveying mechanism; the second drive rod 72 is capable of sliding axially on the roller 1.

[0034] Preferably, one end of the roller 1 is equipped with an axial cam 76 fixed relative to the frame, and the end of the second drive rod 72 is equipped with a second roller 74; a spring 75 is provided between the second drive rod 72 and the roller 1 to keep the second roller 74 in constant contact with the cam profile of the axial cam 76.

[0035] With the above structure, the roller 1 rotates and the second roller 74 rolls along the cam profile, which enables the rod 4 to switch between the unfolded state and the horizontal state. In the unfolded state, the rod 4 is perpendicular to the axis of the roller 1, and in the horizontal state, the rod 4 is parallel to the axis of the roller 1.

[0036] In use, a cutter is located below the drum 1. When the drum 1 rotates, the auxiliary conveying mechanism rotates with it. When the auxiliary conveying mechanism is located behind the drum 1, its rod 4 is in a retracted state. As it moves forward and upward after passing the lowest point of the drum 1, it can intervene between the barley crops from below, providing some support for the crops. When the auxiliary conveying mechanism reaches the front of the drum 1, the disc cam 63 first retracts the telescopic rod 5 through the first drive rod 61, causing the rod 4 to become extended. Then, the axial cam 76 immediately rotates the telescopic rod 5 through the second drive rod 72, causing the rod 4 to become horizontal. In this way, the rod 4 intervenes horizontally between the barley crops. After the cutter cuts the barley crops, the rod 4 holds the crops on the drum 1 and moves them to the upper side with the drum 1. The barley crops are then taken away by the conveying mechanism installed on the upper rear side of the drum 1. In this way, the barley crops are neatly arranged, which facilitates subsequent processing. After the barley crop is removed, the second drive mechanism 7 first causes the rod 4 to be in the extended state, and then the first drive mechanism 6 causes the rod 4 to be in the retracted state.

[0037] The crop conveying mechanism for the barley harvester of the present invention has a rod 4 that can switch between a retracted state, an extended state, and a horizontal state. This allows the rod 4 to intervene between the barley crops in the retracted state and sequentially change to the extended state and the horizontal state, so as to keep the barley crops between the roller 1 and the rod 4. After the cutter cuts the barley crops, the uniformity of the barley crops is maintained, which facilitates subsequent processing.

[0038] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A crop conveying mechanism for a barley harvester, comprising a drum (1) and multiple sets of auxiliary conveying mechanisms dispersed along the axial direction of the drum (1), wherein the multiple auxiliary conveying mechanisms in each set are arranged in a circumferential array relative to the central axis of the drum (1); characterized in that: The roller (1) is fixed with a tube (2) provided for each of the auxiliary conveying mechanisms; the auxiliary conveying mechanism includes a movable hinge joint (3) rotatably mounted at the end of the tube (2), and also includes a rod (4), one end of which is connected to the movable hinge joint (3); The auxiliary conveying mechanism also includes a telescopic rod (5) that can slide and rotate relative to the tube (2); the outer end of the telescopic rod (5) has a first pin, and the rod (4) has a first slot (4a) for inserting the first pin; The roller (1) is equipped with a first drive mechanism (6) for driving the telescopic rod (5) to telescopically extend and retract, and a second drive mechanism (7) for driving the telescopic rod (5) to rotate.

2. The crop conveying mechanism for a barley harvester according to claim 1, characterized in that, The first driving mechanism (6) includes a first driving rod (61) that is rotatably connected to the inner end of the telescopic rod (5), and all the telescopic rods (5) corresponding to all the auxiliary conveying mechanisms in the same row are connected to the same first driving rod (61); The first drive rod (61) is capable of sliding radially on the roller (1).

3. The crop conveying mechanism for a barley harvester according to claim 2, characterized in that, The first drive rod (61) is equipped with a first roller (62) at its end; the roller (1) is equipped with a disc cam (63) fixedly mounted relative to the frame at its end, and the roller (1) is rotatably mounted relative to the frame; the first roller (62) is capable of moving within the groove of the disc cam (63).

4. The crop conveying mechanism for a barley harvester according to claim 2, characterized in that, The second drive mechanism (7) includes a control handle (71) that can slide axially relative to the telescopic rod (5) but cannot rotate circumferentially relative to the telescopic rod (5); the end of the control handle (71) has a second slot; the second drive mechanism (7) also includes a second drive rod (72) extending axially along the roller (1); a plurality of second pins (73) are mounted on the second drive rod (72), the number of second pins (73) being equal to the number of auxiliary conveying mechanisms in the same row, and the second pins (73) extending into the second slot of the corresponding auxiliary conveying mechanism; the second drive rod (72) is axially slidable on the roller (1).

5. The crop conveying mechanism for a barley harvester according to claim 4, characterized in that, One end of the roller (1) is fitted with an axial cam (76) fixed relative to the frame, and the end of the second drive rod (72) is fitted with a second roller (74); a spring (75) is provided between the second drive rod (72) and the roller (1) to keep the second roller (74) in constant contact with the cam profile of the axial cam (76).

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