A combing cylinder for forage grass seed harvesting

Abstract

The application discloses a combing roller for harvesting grass seeds, which comprises a roller body and a plurality of sets of combing mechanisms arranged around the roller body, the combing mechanism having a long strip seat body extending along the axial direction of the roller body and brush filaments arranged on the combing mechanism; the outer surface of the roller body is provided with grooves for the combing mechanism to retract into; a driving mechanism for driving the extension and retraction of the combing mechanism is mounted inside the roller body; the driving mechanism comprises a rod extending along the axial direction of the roller body, a connecting rod penetrating through the bottom of the groove and connecting the rod and the long strip seat body; the driving mechanism further comprises two cams arranged at the two ends of the roller body, the cams acting on the end of the rod to enable the rod to move close to or away from the axial center of the roller body.

Description

Technical Field

[0001] This invention relates to the field of accessories for agricultural harvesting machinery, and in particular to a combing roller for harvesting forage grass seeds. Background Technology

[0002] As an important source of feed, the harvesting of forage seeds is crucial for the development of animal husbandry. High-quality forage seeds not only improve livestock feeding efficiency but also promote the restoration and sustainable development of grassland ecosystems. Therefore, improving forage seed harvesting techniques is of great significance for increasing forage yield, improving the ecological environment, and promoting the progress of animal husbandry.

[0003] In the prior art, CN2540739Y discloses a forage seed harvester that uses brush rollers to comb the forage, causing the seeds to detach from the forage. However, this patent presents significant problems with the brush rollers during forage seed harvesting. The traditional brush roller design causes forage to easily entangle on its surface. As the working time increases, the forage becomes increasingly tangled, reducing combing efficiency and potentially causing equipment malfunctions or requiring frequent cleaning, greatly affecting the continuity and stability of the work. This phenomenon limits the effective harvesting of forage seeds, urgently requiring a new solution to overcome these shortcomings. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a combing roller for harvesting forage seeds that can effectively reduce forage tangling and reduce operational failures.

[0005] Technical solution: To achieve the above objective, the present invention provides a combing roller for harvesting forage seeds, which includes a roller body and multiple combing mechanisms arranged around the roller body. The combing mechanism has an elongated seat extending along the axial direction of the roller body and bristles dispersed on the combing mechanism.

[0006] The outer surface of the roller body has a groove for the combing mechanism to retract into; the inside of the roller body is equipped with a drive mechanism for driving the combing mechanism to extend and retract.

[0007] The drive mechanism includes a rod extending axially along the roller body, and a connecting rod passing through the bottom of the groove and connecting the rod and the elongated seat.

[0008] The drive mechanism also includes two cams located at both ends of the drum body. The cams act on the ends of the rod to enable the rod to move closer to or further away from the axis of the drum body.

[0009] Furthermore, the end face of the cam has a guide groove, and both ends of the rod are equipped with rollers that can move within the guide groove; the guide groove has a first arc segment close to the axis, a second arc segment away from the axis, and a transition segment connecting the first arc segment and the second arc segment.

[0010] During operation, the cam does not rotate, while the roller body rotates in one direction. Under the action of the cam, when the roller corresponding to the rod reaches the second arc segment, its distance from the axis is the greatest, allowing the bristles of the combing mechanism to be pushed out of the groove. The bristles can then act on the forage to brush the seeds off the forage, achieving separation of seeds and forage. When the roller corresponding to the rod reaches the first arc segment, its distance from the axis is the closest, the rod pulls the combing mechanism back through the connecting rod, causing the bristles to retract into the groove. This prevents the bristles from continuously rotating around the roller body with the forage, which would cause the forage on the roller body to become increasingly tangled, affecting subsequent harvesting.

[0011] Furthermore, the bristles are made of elastic steel wire.

[0012] Furthermore, the opening of each groove is covered with a plurality of equally spaced, linearly arranged guide teeth, the extension direction of which is perpendicular to the axial direction of the roller body. When the roller corresponding to the rod moves to the first arc segment, a small section of the brush bristles remains outside the guide teeth. Specifically, all guide teeth corresponding to the same groove are positioned between two mounting strips, which are fixed to the roller body by multiple screws.

[0013] Furthermore, the cam is connected to an extension shaft that extends to the outside of the roller body; the end of the roller body is fixed with a sleeve shaft that is sleeved on the outside of the extension shaft and can rotate relative to the extension shaft; the extension shaft is fixedly installed relative to the outer frame.

[0014] Furthermore, a power connection component is fixedly installed on the sleeve shaft, and the power connection component is a gear, sprocket, or pulley.

[0015] Beneficial effects: The combing roller for harvesting forage seeds of the present invention has the following beneficial effects:

[0016] (1) By using the combing roller of the present invention, the combing mechanism can extend the groove to act on the grass only when it moves to a specific angle range. In other angle ranges, the combing mechanism can retract into the groove to detach the grass, preventing the grass from being pulled up and causing it to roll up on the roller body. This ensures the continuity of operation and the stability of operation, and avoids frequent shutdowns to deal with the rolled grass.

[0017] (2) The brush bristles made of elastic steel wire have a strong brushing force on the grass, which can improve the harvest rate. Moreover, the brush bristles will not wear or deform during frequent extension and retraction movements, which can ensure the service life.

[0018] (3) Set a stop tooth on the outside of the groove. As the brush bristles retract into the groove, the stop tooth can help the grass and other debris to get off the brush bristles, prevent the grass from being brought into the groove, and achieve more stable operation. Attached Figure Description

[0019] Figure 1 A structural diagram of a combing roller used for harvesting forage grass seeds;

[0020] Figure 2 for Figure 1 AA section view in the middle;

[0021] Figure 3 for Figure 1 BB section view in the middle;

[0022] Figure 4 for Figure 1 Enlarged structural diagram of section C;

[0023] Figure 5 This is a structural diagram of the combing roller used for harvesting forage seeds in a preferred embodiment;

[0024] Figure 6 This is a structural diagram of the end of the brush roller in a preferred embodiment (the roller body is hidden).

[0025] In the diagram: 1-Roller body; 11-Groove; 12-Air outlet; 2-Brushing mechanism; 21-Long strip seat; 22-Brush bristles; 3-Drive mechanism; 31-Rod; 32-Connecting rod; 33-Cam; 33a-First arc segment; 33b-Second arc segment; 33c-Transition segment; 33d-Axial guide groove; 34-Roller; 41-Stop tooth; 42-Mounting strip; 5-Extending shaft; 6-Sleeve shaft; 7-Power input component; 82-Guide pin; 81-Baffle plate; 81a-Release hole. Detailed Implementation

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] like Figure 1 The shown is a combing roller for harvesting forage grass seeds, which includes a roller body 1 and multiple combing mechanisms 2 arranged around the roller body 1. The combing mechanism 2 has an elongated seat 21 extending along the axial direction of the roller body 1 and bristles 22 dispersed on the combing mechanism 2.

[0028] like Figure 2 As shown, the outer surface of the roller body 1 has a groove 11 for the combing mechanism 2 to retract into; the inside of the roller body 1 is equipped with a drive mechanism 3 for driving the combing mechanism 2 to extend and retract.

[0029] The drive mechanism 3 includes a rod 31 extending along the axial direction of the roller body 1, and a connecting rod 32 passing through the bottom of the groove 11 and connecting the rod 31 and the elongated seat 21.

[0030] The drive mechanism 3 also includes two cams 33 located at both ends of the roller body 1. The cams 33 act on the ends of the rod 31 to enable the rod 31 to move closer to or further away from the axis of the roller body 1.

[0031] Preferably, such as Figure 2 and Figure 3 As shown, the cam 33 has a guide groove on its end face, and both ends of the rod 31 are equipped with rollers 34 that can move within the guide groove (e.g., ...). Figure 3 (As shown); the guide groove has a first arc segment 33a near the axis, a second arc segment 33b away from the axis, and a transition segment 33c connecting the first arc segment 33a and the second arc segment 33b.

[0032] In operation, cam 33 does not rotate, while the roller body 1 rotates in one direction. Under the action of cam 33, when the roller 34 corresponding to rod 31 reaches the second arc segment 33b, its distance from the axis is the greatest, allowing the brush bristles 22 of the combing mechanism 2 to be pushed out of the groove 11. The brush bristles 22 can then act on the forage to brush the grass seeds off the forage, thus separating the grass seeds from the forage. When the roller 34 corresponding to rod 31 reaches the first arc segment 33a, its distance from the axis is the closest, rod 31 pulls the combing mechanism 2 back through connecting rod 32, causing the brush bristles 22 to retract into the groove 11. This prevents the brush bristles 22 from carrying the forage and continuously rotating around the roller body 1, which would cause the forage on the roller body 1 to become increasingly entangled, affecting subsequent harvesting.

[0033] By using the combing roller of the present invention, the combing mechanism 2 can extend out of the groove 11 to act on the hay only when it moves to a specific angle range. In other angle ranges, the combing mechanism 2 can retract into the groove 11 to detach the hay, preventing the hay from being pulled up and causing it to roll and gather on the roller body 1. This can ensure the continuity of operation and the stability of operation, and avoid frequent shutdowns to deal with the rolled hay.

[0034] Preferably, the bristles 22 are made of elastic steel wire. Bristles 22 made of elastic steel wire have a strong brushing force on the forage, which can improve the harvest rate. Moreover, the bristles 22 will not wear or deform during frequent extension and retraction movements, thus ensuring their service life.

[0035] Preferably, such as Figure 4As shown, the opening of each groove 11 is covered with a plurality of equally spaced, linearly arranged baffles 41, the extension direction of which is perpendicular to the axial direction of the roller body 1. When the roller 34 corresponding to the rod 31 moves to the first arc segment 33a, a small section of the brush bristles 22 remains outside the baffles 41. By setting the baffles 41 on the outside of the groove 11, the baffles 41 can help remove debris such as grass from the brush bristles 22 as the brush bristles 22 retract into the groove 11, preventing grass from being brought into the groove 11 and achieving more stable operation. Specifically, all the baffles 41 corresponding to the same groove 11 are placed between two mounting strips 42, which are fixed to the roller body 1 by multiple screws.

[0036] Preferably, the cam 33 is connected to an extension shaft 5 that extends to the outside of the roller body 1; the end of the roller body 1 is fixed with a sleeve shaft 6 that is sleeved on the outside of the extension shaft 5 and can rotate relative to the extension shaft 5; the extension shaft 5 is fixedly installed relative to the outer frame.

[0037] Preferably, a power input component 7 is fixedly installed on the sleeve shaft 6, and the power input component 7 is a gear, sprocket or pulley.

[0038] Preferably, such as Figure 5 and Figure 6 As shown, the outer wall of the roller body 1 has multiple rows of air outlets 12 arranged in a linear array along the axial direction, and the protruding shaft at one end of the roller body 1 has a hollow structure that can guide airflow into the roller body 1; an air outlet 12 is provided between every two combing mechanisms 2, and a baffle plate 81 corresponding to each air outlet 12 is installed inside the roller body 1. The baffle plate 81 has a release hole 81a corresponding to each air outlet 12. When the release hole 81a is aligned with the corresponding air outlet 12 ( Figure 5 As shown in position a), the air outlet 12 can blow out airflow. When the release hole 81a is misaligned with the corresponding air outlet 12, the air outlet 12 is closed. Figure 5 (As shown in position b); the outer circumferential surface of the cam 33 has an axial guide groove 33d, and the end of the baffle plate 81 is equipped with a guide pin 82 embedded in the axial guide groove 33d. The rotation of the cam 33 can not only make the combing mechanism 2 extend and retract, but also make the air outlet 12 open when it reaches the position directly above or diagonally above the roller body 1, and close when it reaches the position directly below or diagonally below the roller body 1. In this way, the brushed grass seeds can be blown upward for easy collection.

[0039] 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 brush cylinder for harvesting grass seeds, comprising a cylinder body (1) and a plurality of brush mechanisms (2) arranged around the cylinder body (1), the brush mechanisms (2) having long strip seats (21) extending along the axial direction of the cylinder body (1) and brush wires (22) arranged on the brush mechanisms (2) in a scattered manner; characterized in that: the outer surface of the cylinder body (1) has grooves (11) for the brush mechanisms (2) to retract into; a driving mechanism (3) for driving the brush mechanisms (2) to extend and retract is mounted inside the cylinder body (1); the driving mechanism (3) comprises a rod (31) extending along the axial direction of the cylinder body (1) and a connecting rod (32) passing through the bottom of the groove (11) and connecting the rod (31) and the long strip seat (21); the driving mechanism (3) further comprises two cams (33) arranged at both ends of the cylinder body (1), which act on the ends of the rod (31) to enable the rod (31) to move close to or away from the axis of the cylinder body (1); the outer wall of the cylinder body (1) has a plurality of rows of air outlets (12) arranged in a linear array along the axial direction, and the protruding shaft at one end of the cylinder body (1) is a hollow structure capable of introducing airflow into the cylinder body (1); one row of air outlets (12) is arranged between every two brush mechanisms (2), and the cylinder body (1) is provided with a shielding piece (81) corresponding to each row of air outlets (12), the shielding piece (81) has a release hole (81a) corresponding to each air outlet (12), when the release hole (81a) is aligned with the corresponding air outlet (12), the air outlet (12) can blow out airflow, when the release hole (81a) is misaligned with the corresponding air outlet (12), the air outlet (12) is closed; the outer circumference of the cam (33) has an axial guide groove (33d), the end of the shielding piece (81) is provided with a guide pin (82) embedded in the axial guide groove (33d), the rotation of the cam (33) not only enables the brush mechanisms (2) to extend and retract, but also enables the air outlets (12) to open when reaching a position directly above or obliquely above the cylinder body (1), and to close when reaching a position directly below or obliquely below the cylinder body (1). the end surface of the cam (33) has a guide groove, the both ends of the rod (31) are provided with rollers (34) capable of moving in the guide groove; the guide groove has a first arc segment (33a) close to the axis, a second arc segment (33b) away from the axis, and a transition segment (33c) connecting the first arc segment (33a) and the second arc segment (33b).

2. A brush cylinder for forage seed harvesting according to claim 1, characterized in that, the brush wire (22) is a steel wire with elasticity.

3. A brush cylinder for forage seed harvesting according to claim 1, characterized in that, the mouth of each groove (11) is covered with a plurality of blocking teeth (41) arranged in a linear array at equal intervals, and the extension direction of the blocking teeth (41) is perpendicular to the axial direction of the cylinder body (1).

4. A brush cylinder for forage seed harvesting according to claim 1, characterized in that, ​ 5. A brush cylinder for forage seed harvesting according to claim 2, characterized in that, The cam (33) is connected with an extension shaft (5) extending to the outside of the drum body (1); the end of the drum body (1) is fixed with a sleeve shaft (6) sleeved on the outside of the extension shaft (5) and capable of rotating relative to the extension shaft (5); the extension shaft (5) is fixedly installed relative to the outside frame.

6. A brush cylinder for forage seed harvesting according to claim 5, characterized in that, The sleeve shaft (6) is fixedly installed with a power access (7), which is a gear, a chain wheel or a belt wheel.

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