Alfalfa harvesting device

Abstract

The utility model discloses an alfalfa harvesting device, which relates to the technical field of harvesting devices and comprises a collecting vehicle body. The harvesting assembly is arranged on the collecting vehicle body in a lifting mode and used for harvesting; the harvesting assembly comprises a harvesting bin and a cutting mechanism arranged at the front end of the harvesting bin, the cutting mechanism comprises fixing bases symmetrically and fixedly installed on the harvesting bin and a transmission box fixedly installed on the side wall of the harvesting bin, a lower cutter is fixedly installed between the two fixing bases, and an upper cutter is slidably arranged on the top face of the lower cutter; the two ends of the upper cutter are fixedly connected with connecting rods, the connecting rods are arranged on the fixing base in a sliding mode, a driving motor is fixedly installed in the transmission box, the driving end of the driving motor is fixedly connected with a cam, and the cam abuts against the ends of the connecting rods. The problems that in the prior art, the harvesting height of harvesting equipment is fixed, and the harvesting height is inconvenient to adjust according to requirements are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of harvesting devices, and in particular relates to an alfalfa harvesting device. Background Art

[0002] Purple alfalfa is a plant of the genus Medicago in the legume family. It is a perennial herb and is one of the raw materials for making cattle feed. The appropriate mowing period for harvesting alfalfa to make wrapped silage is from the bud stage to the initial flowering stage. It is best to mow when about 10% of the flower buds appear in the whole alfalfa. When mowing and drying purple alfalfa raw materials, the general stubble height is 6 to 10 cm when mowing. Raw materials with mud, mildew and rot must not be mowed. Generally, the higher the stubble height, the higher the forage quality will be, but the yield will decrease.

[0003] The existing patent (application number: CN202021124736.7) proposes a device for harvesting alfalfa, including a base plate and a support plate, a No. 2 slot is opened inside the support plate, and a number of No. 1 fixing blocks are snap-connected inside the No. 2 slot, and a No. 2 support rod and a No. 4 support rod are welded to one side of the outer surface of the two No. 1 fixing blocks, respectively, and a No. 3 support rod is welded to one side of the outer surface of the No. 2 support rod.

[0004] When mowing and drying alfalfa raw materials, the stubble height is generally 6 to 10 cm, and the harvesting height of the harvesting equipment in the prior art is fixed, which is not convenient to adjust the harvesting height according to demand, which easily causes the harvesting end to be embedded in the wet soil, and part of the stems to crawl on the surface of the paddy field soil. The soil is easily mixed with the harvested alfalfa, and the later processing needs to be cleaned up, which increases the later production and processing costs.

[0005] In view of this, this application is hereby filed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an alfalfa harvesting device to achieve the desired purpose of facilitating the adjustment of the harvesting height.

[0007] In order to solve the above technical problems, the utility model provides an alfalfa harvesting device, comprising:

[0008] Collect car bodies;

[0009] A harvesting assembly that can be lifted and lowered on the collecting vehicle body for harvesting;

[0010] The harvesting assembly includes a harvesting bin and a cutting mechanism arranged at the front end of the harvesting bin, the cutting mechanism includes a fixed seat symmetrically fixedly installed on the harvesting bin and a transmission box fixedly installed on the side wall of the harvesting bin, a lower cutter is fixedly installed between the two fixed seats, an upper cutter is slidably arranged on the top surface of the lower cutter, both ends of the upper cutter are fixedly connected with connecting rods, the connecting rods are slidably arranged on the fixed seats, a driving motor is fixedly installed inside the transmission box, a cam is fixedly connected to the driving end of the driving motor, and the cam abuts against the end of the connecting rod.

[0011] Furthermore, it also includes an adjustment component for controlling the vertical adjustment height of the harvesting bin on the collecting vehicle body, the adjustment component includes a lifting groove opened on the side wall of the collecting vehicle body and a mounting seat fixedly installed on the outer side wall of the collecting vehicle body, a lifting seat is slidably installed inside the lifting groove, the lifting seat is fixedly connected to the outer side wall of the harvesting bin, an adjusting screw is rotatably installed on the mounting seat, and the lifting groove is threadedly connected to the adjusting screw.

[0012] Furthermore, the lifting slot, lifting seat, mounting seat and adjusting screw are each provided with two groups, wherein synchronous wheels are fixedly installed on the outer walls of the upper parts of the two adjusting screws, a synchronous belt is connected between the two synchronous wheels for transmission, and a knob is fixedly installed on the top of one of the adjusting screws.

[0013] Furthermore, a push rod is fixedly installed on the rear side wall of the collection vehicle body, and the push rod is symmetrically arranged. Brackets are fixedly installed at the four corners of the bottom of the collection vehicle body, and moving wheels are rotatably installed on the brackets.

[0014] Furthermore, the fixed seat is provided with a through hole for the connecting rod to slide, the connecting rod is slidably arranged inside the through hole, and the connecting rod is extended through the through hole to one end of the transmission box and is equipped with a contact head, the connecting rod is abutted against the outer wall of the cam through the contact head, a return spring is sleeved on the outer wall of the connecting rod, one end of the return spring is connected to the outer wall of the harvesting bin, and the other end of the return spring is connected to the outer wall of the contact head.

[0015] Furthermore, a conveying trough is provided on the inner bottom wall of the harvesting bin, and conveying rollers are symmetrically installed inside the conveying trough for rotation, a conveyor belt is transmission-connected between the two conveying rollers, and a conveying motor is fixedly installed on the outer side wall of the harvesting bin, and the driving end of the conveying motor is fixedly connected to one end of one of the conveying rollers.

[0016] Furthermore, a receiving groove is provided on the bottom wall of the collecting vehicle body, a cloth winding roller is rotatably installed inside the receiving groove, a shielding curtain is wound around the cloth winding roller, and one end of the shielding curtain is fixedly connected to the bottom surface of the harvesting bin.

[0017] Furthermore, a torsion spring is sleeved on the axial end of the cloth winding roller, one end of the torsion spring is fixedly connected to the inner wall of the accommodating groove, and the other end of the torsion spring is fixedly connected to the side wall of the cloth winding roller.

[0018] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0019] In the utility model, the lifting seat threadedly connected thereto can be driven to move vertically along the lifting groove by rotating the adjusting screw, and the lifting seat can drive the harvesting assembly as a whole to be lifted and adjusted, so that the harvesting height can be adjusted according to the field terrain, which can not only meet the cutting requirements of alfalfa, but also avoid embedding in uneven soil during the harvesting process, so as to prevent soil from being mixed in the harvested alfalfa, requiring another de-impurity operation, resulting in increased production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0022] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0023] Figure 3 This is a front view structural schematic diagram of the utility model;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0025] Numbers in the figure:

[0026] 1. Collecting vehicle body; 2. Push rod; 3. Bracket; 4. Moving wheel; 5. Harvesting bin;

[0027] 6. Cutting mechanism; 601. Fixed seat; 602. Lower cutter; 603. Upper cutter; 604. Transmission box; 605. Driving motor; 606. Cam; 607. Connecting rod;

[0028] 7. Lifting slot; 8. Lifting seat; 9. Mounting seat; 10. Adjusting screw; 11. Synchronous wheel; 12. Synchronous belt; 13. Knob; 14. Conveying roller; 15. Conveying belt; 16. Conveying motor; 17. Cloth winding roller; 18. Shading curtain.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figures 1 to 4 As shown, the utility model provides an alfalfa harvesting device.

[0034] Specifically, by Figure 1-4 Given, collect car body 1;

[0035] A harvesting assembly that can be lifted and lowered on the collecting vehicle body 1 for harvesting;

[0036] The harvesting assembly includes a harvesting bin 5 and a cutting mechanism 6 arranged at the front end of the harvesting bin 5, the cutting mechanism 6 includes a fixed seat 601 symmetrically fixedly installed on the harvesting bin 5 and a transmission box 604 fixedly installed on the side wall of the harvesting bin 5, a lower cutter 602 is fixedly installed between the two fixed seats 601, an upper cutter 603 is slidably arranged on the top surface of the lower cutter 602, both ends of the upper cutter 603 are fixedly connected with connecting rods 607, the connecting rods 607 are slidably arranged on the fixed seat 601, a driving motor 605 is fixedly installed inside the transmission box 604, a cam 606 is fixedly connected to the driving end of the driving motor 605, and the cam 606 is abutted against the end of the connecting rod 607.

[0037] It also includes an adjustment component for controlling the vertical adjustment height of the harvesting bin 5 on the collecting vehicle body 1, the adjustment component includes a lifting groove 7 opened on the side wall of the collecting vehicle body 1 and a mounting seat 9 fixedly installed on the outer wall of the collecting vehicle body 1, a lifting seat 8 is slidably installed inside the lifting groove 7, the lifting seat 8 is fixedly connected to the outer wall of the harvesting bin 5, an adjusting screw 10 is rotatably installed on the mounting seat 9, and the lifting groove 7 is threadedly connected to the adjusting screw 10.

[0038] In the utility model, the lifting seat 8 threadedly connected thereto can be driven to move vertically along the lifting groove 7 by rotating the adjusting screw 10, and the lifting seat 8 can drive the harvesting assembly to be lifted and adjusted as a whole, so that the harvesting height can be adjusted according to the field terrain, which can not only meet the cutting requirements of alfalfa, but also avoid embedding in the uneven soil during the harvesting process, so as to prevent the soil from being mixed in the harvested alfalfa, and the need for another weeding operation, resulting in increased production costs;

[0039] Furthermore, as a specific implementation of the utility model, the utility model provides an alfalfa harvesting device.

[0040] Specifically, Figure 1 It is shown that the lifting slot 7, the lifting seat 8, the mounting seat 9 and the adjusting screw 10 are each provided with two groups, wherein a synchronous wheel 11 is fixedly mounted on the outer wall of the upper part of the two adjusting screws 10, a synchronous belt 12 is connected for transmission between the two synchronous wheels 11, and a knob 13 is fixedly mounted on the top of one of the adjusting screws 10.

[0041] In the utility model, one of the adjusting screws 10 can be driven to rotate by rotating the knob 13, and the two adjusting screws 10 can be synchronously rotated through the transmission cooperation of the synchronous wheel 11 and the synchronous belt 12, so that the two lifting seats 8 can drive the harvesting bin 5 to move, thereby improving the stability of the adjustment.

[0042] Furthermore, as another specific implementation of the utility model, the utility model provides an alfalfa harvesting device.

[0043] Specifically, Figure 1 It is shown that a push rod 2 is fixedly installed on the rear side wall of the collecting vehicle body 1, and the push rod 2 is symmetrically arranged. Brackets 3 are fixedly installed at the four corners of the bottom of the collecting vehicle body 1, and moving wheels 4 are rotatably installed on the brackets 3.

[0044] In the utility model, the pushing device is convenient to move in the field.

[0045] Furthermore, as a specific implementation of the utility model, the utility model provides an alfalfa harvesting device.

[0046] Specifically, Figure 1 It is given that a through hole for the connecting rod 607 to slide is opened on the fixed seat 601, and the connecting rod 607 is slidably set inside the through hole, and the connecting rod 607 extends through the through hole to the end of the transmission box 604 and is equipped with a contact head. The connecting rod 607 is abutted against the outer wall of the cam 606 through the contact head, and a return spring is sleeved on the outer wall of the connecting rod 607, one end of the return spring is connected to the outer wall of the harvesting bin 5, and the other end of the return spring is connected to the outer wall of the contact head.

[0047] In the utility model, the cam 606 can be driven to rotate by driving the motor 605, and the connecting rod 607 can always fit with the outer wall of the cam 606 under the elastic force of the return spring, so that the cam 606 can drive the connecting rod 607 to slide back and forth on the fixed seat 601, and the connecting rod 607 drives the upper cutter 603 to move back and forth on the lower cutter 602, so that the alfalfa can be harvested quickly.

[0048] Furthermore, as a specific implementation of the utility model, the utility model provides an alfalfa harvesting device.

[0049] Specifically, Figure 3-Figure 4 It is shown that a conveying trough is provided on the inner bottom wall of the harvesting bin 5, and conveying rollers 14 are symmetrically installed inside the conveying trough for rotation, a conveyor belt 15 is transmission-connected between the two conveying rollers 14, and a conveying motor 16 is fixedly installed on the outer wall of the harvesting bin 5, and the driving end of the conveying motor 16 is fixedly connected to one end of one of the conveying rollers 14.

[0050] In the utility model, the conveying motor 16 can drive the conveying roller 14 to rotate, and the conveying roller 14 drives the conveying belt 15 to convey the harvested alfalfa to the inside of the collecting vehicle body 1 for collection.

[0051] Furthermore, as a specific implementation of the utility model, the utility model provides an alfalfa harvesting device.

[0052] Specifically, Figure 4 It is shown that a receiving groove is opened on the inner bottom wall of the collecting vehicle body 1, and a cloth winding roller 17 is rotatably installed inside the receiving groove. A shielding curtain 18 is wound around the cloth winding roller 17, and one end of the shielding curtain 18 is fixedly connected to the bottom surface of the harvesting bin 5.

[0053] In the utility model, the cloth-winding roller 17 and the shielding curtain 18 cooperate to shield the gap between the bottom surface of the harvesting bin 5 and the top wall of the collecting vehicle body 1, thereby preventing the alfalfa collected inside the collecting vehicle body 1 from leaking from the gap.

[0054] Furthermore, as a specific implementation of the utility model, the utility model provides an alfalfa harvesting device.

[0055] Specifically, Figure 4 It is shown that a torsion spring is sleeved on the axial end of the cloth winding roller 17 , one end of the torsion spring is fixedly connected to the inner wall of the accommodating groove, and the other end of the torsion spring is fixedly connected to the side wall of the cloth winding roller 17 .

[0056] In the utility model, the cloth winding roller 17 can be wound around the shielding curtain 18 through the initial torsion force of the torsion spring, ensuring that the cloth winding roller 17 can be automatically rolled up on the shielding curtain 18 when the harvesting bin 5 is adjusted downward in height.

[0057] Working principle: When harvesting, the collecting vehicle body 1 is pushed to the field, and the lifting seat 8 threaded thereon can be driven to move vertically along the lifting slot 7 by rotating the adjusting screw 10. The lifting seat 8 can drive the harvesting assembly to be lifted and adjusted as a whole, and then the harvesting height can be adjusted according to the field terrain, which can not only meet the cutting requirements of alfalfa, but also avoid embedding in the uneven soil during the harvesting process, so as to prevent the soil from being mixed in the harvested alfalfa, and the need for cleaning operations again, resulting in increased production costs. When the height adjustment of the harvesting assembly is completed, the lifting seat 8 is driven to lift the harvesting assembly to the ground. The driving motor 605 can drive the cam 606 to rotate, and the connecting rod 607 can always fit with the outer wall of the cam 606 under the elastic force of the return spring, so that the cam 606 can drive the connecting rod 607 to slide back and forth on the fixed seat 601, and the connecting rod 607 drives the upper cutter 603 to move back and forth on the lower cutter 602, so that the alfalfa can be harvested quickly, and the harvested alfalfa will be accumulated in the harvesting bin 5. The conveying motor 16 can drive the conveying roller 14 to rotate, and the conveying roller 14 drives the conveyor belt 15 to transport the harvested alfalfa to the inside of the collection vehicle body 1 for collection.

[0058] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. An alfalfa harvesting device, comprising: Collecting the vehicle body (1); A harvesting assembly that can be lifted and arranged on the collecting vehicle body (1) for harvesting; The invention is characterized in that the harvesting assembly comprises a harvesting bin (5) and a cutting mechanism (6) arranged at the front end of the harvesting bin (5), the cutting mechanism (6) comprises a fixed seat (601) symmetrically fixedly installed on the harvesting bin (5) and a transmission box (604) fixedly installed on the side wall of the harvesting bin (5), a lower cutter (602) is fixedly installed between the two fixed seats (601), an upper cutter (603) is slidably arranged on the top surface of the lower cutter (602), both ends of the upper cutter (603) are fixedly connected to connecting rods (607), the connecting rods (607) are slidably arranged on the fixed seat (601), a driving motor (605) is fixedly installed inside the transmission box (604), a driving end of the driving motor (605) is fixedly connected to a cam (606), and the cam (606) abuts against the end of the connecting rod (607).

2. The alfalfa harvesting device according to claim 1, characterized in that: It also includes an adjustment component for controlling the vertical adjustment height of the harvesting bin (5) on the collecting vehicle body (1), the adjustment component including a lifting groove (7) provided on the side wall of the collecting vehicle body (1) and a mounting seat (9) fixedly mounted on the outer side wall of the collecting vehicle body (1), a lifting seat (8) being slidably mounted inside the lifting groove (7), the lifting seat (8) being fixedly connected to the outer side wall of the harvesting bin (5), an adjustment screw (10) being rotatably mounted on the mounting seat (9), and the lifting groove (7) being threadedly connected to the adjustment screw (10).

3. The alfalfa harvesting device according to claim 2, characterized in that: The lifting slot (7), the lifting seat (8), the mounting seat (9) and the adjusting screw (10) are each provided in two groups, wherein a synchronous wheel (11) is fixedly mounted on the outer wall of the upper part of the two adjusting screws (10), a synchronous belt (12) is transmission-connected between the two synchronous wheels (11), and a knob (13) is fixedly mounted on the top end of one of the adjusting screws (10).

4. The alfalfa harvesting device according to claim 1, characterized in that: A push rod (2) is fixedly mounted on the rear side wall of the collection vehicle body (1), and the push rod (2) is symmetrically arranged. Brackets (3) are fixedly mounted at the four corners of the bottom of the collection vehicle body (1), and moving wheels (4) are rotatably mounted on the brackets (3).

5. The alfalfa harvesting device according to claim 1, characterized in that: The fixing seat (601) is provided with a through hole for the connecting rod (607) to slide, and the connecting rod (607) is slidably arranged inside the through hole, and one end of the connecting rod (607) extending through the through hole to the inside of the transmission box (604) is equipped with a contact head, and the connecting rod (607) is abutted against the outer wall of the cam (606) through the contact head, and a return spring is sleeved on the outer wall of the connecting rod (607), one end of the return spring is connected to the outer wall of the harvesting bin (5), and the other end of the return spring is connected to the outer wall of the contact head.

6. The alfalfa harvesting device according to claim 1, characterized in that: A conveying trough is provided on the inner bottom wall of the harvesting bin (5), and conveying rollers (14) are symmetrically rotatably installed inside the conveying trough. A conveying belt (15) is transmission-connected between the two conveying rollers (14). A conveying motor (16) is fixedly installed on the outer side wall of the harvesting bin (5), and a driving end of the conveying motor (16) is fixedly connected to one end of one of the conveying rollers (14).

7. The alfalfa harvesting device according to claim 1, characterized in that: A receiving groove is provided on the inner bottom wall of the collecting vehicle body (1), a cloth winding roller (17) is rotatably mounted inside the receiving groove, a shielding curtain (18) is wound around the cloth winding roller (17), and one end of the shielding curtain (18) is fixedly connected to the bottom surface of the harvesting bin (5).

8. The alfalfa harvesting device according to claim 7, characterized in that: A torsion spring is sleeved on the axial end of the cloth winding roller (17), one end of the torsion spring is fixedly connected to the inner wall of the accommodating groove, and the other end of the torsion spring is fixedly connected to the side wall of the cloth winding roller (17).

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