Rice harvesting device

Abstract

The utility model provides a rice harvesting device which solves the problems that when the rice harvesting device is used for harvesting lodging rice, the harvesting difficulty is large, unhulled rice is prone to being lost, and the rice yield is reduced. The height adjusting mechanism is arranged between the header and the reel to adjust the height of the reel, so that when the harvesting device aims at lodging rice, the situation that the reel cannot effectively grab and poke the lodging rice is avoided by reducing the height of the reel, the lodging rice smoothly enters the header, and the harvesting efficiency is improved. The rice yield reduction caused by rice loss is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rice harvesting, in particular to a rice harvesting device. Background Art

[0002] Rice is an annual aquatic herb of the Poaceae family. It is an important cereal widely grown in tropical Asia. Southern China is the main rice-producing area, and it is also planted in northern provinces. It is mainly divided into two subspecies, indica rice and japonica rice. There are many cultivars under each subspecies. The mature caryopsis is used as medicine, which tastes sweet, has a mild effect on digestion, strengthens the spleen and stimulates appetite. After the rice is planted and mature, a harvesting device is needed to harvest the rice grains.

[0003] The weight of the rice ear will increase during the maturity period. If the rice is exposed to extreme weather conditions such as strong winds or heavy rain at this time, the rice ear will be blown to one side and fall over. The fallen rice will be close to the ground, making it difficult for the rice harvester to enter the cutting platform smoothly during harvesting. The rice grains are easily damaged, resulting in a lower rice yield. Utility Model Content

[0004] In order to solve the problem in the background art that when harvesting fallen rice, the rice is difficult to harvest and the rice grains are easily lost, resulting in a reduced rice harvest, the utility model proposes a rice harvesting device.

[0005] The technical solution of the utility model is: a rice harvesting device, including a cutting platform, a cutting knife is fixedly provided on the front end of the cutting platform, a reel is rotatably provided on the cutting platform, the reel includes two star wheels spaced apart on the left and right, a plurality of rotating rods spaced apart along the circumferential direction thereof are rotatably provided between the two star wheels, and teeth spaced apart along the extending direction thereof are fixed on the rotating rods;

[0006] A height adjustment mechanism is provided between the cutting platform and the reel, and the height adjustment mechanism is used to adjust the height of the reel;

[0007] An angle adjustment mechanism is provided on the star wheel on the left, and the rotating rod is transmission-connected with the angle adjustment mechanism. The angle adjustment mechanism is used to adjust the inclination angle of the teeth on the rotating rod.

[0008] Preferably, both left and right ends of the cutting platform are fixed with outward-extending flaps, a support is fixed on the flap, a first adjusting rod extending forward is hinged on the support, and the reel is arranged between the front ends of the two first adjusting rods; both left and right sides of the cutting platform are fixed with telescopic devices, the piston rod of the telescopic device is fixed with a driving rod, the top end of the driving rod slides out of the flap and is hinged to the middle part of the first adjusting rod.

[0009] Preferably, the front end of the first adjusting rod located on the left is fixed with an axle seat, a rotating shaft is rotatably provided in the axle seat, one end of the rotating shaft passes through the axle seat and is fixedly connected to the star wheel located on the left; the front end of the first adjusting rod located on the right is fixed with a drive motor, and the output shaft of the drive motor is fixedly connected to the star wheel located on the right.

[0010] Preferably, the angle adjustment mechanism includes a rotating plate rotatably mounted on the shaft seat, and a plurality of sliding grooves extending along its radial direction are opened on the rotating plate, and the plurality of sliding grooves are arranged at intervals along the circumferential direction of the rotating plate; the left end of the rotating rod rotates to pass through the star wheel and is fixed with a second adjusting rod, and a slider is fixed at the end of the second adjusting rod away from the rotating rod, and the plurality of sliders are respectively arranged in the plurality of sliding grooves.

[0011] Preferably, a hexagonal screw head is fixed on the left edge of the rotating plate; two left and right transparent through holes are provided on the rotating plate, and two left and right transparent arc grooves are provided on the star wheel on the left, the arc grooves correspond to the through holes on the left and right, and a first screw is passed through the corresponding arc grooves and through holes, and a first nut is threaded on the first screw, and the first screw is used to cooperate with the first nut to clamp the rotating plate on the star wheel.

[0012] Preferably, a plurality of fixing frames spaced apart from each other are provided between the two star wheels, and a plurality of rotating rods are rotated and passed through the plurality of fixing frames in sequence, and the fixing frames are used to fix the intervals between the plurality of rotating rods.

[0013] Preferably, the front end of the cutting platform is provided with a plurality of crop supporters arranged at intervals to the left and right, and the crop supporters include a bottom rod arranged at the front end of the cutting platform, and the front end of the bottom rod is fixed with a support rod arranged obliquely from top to bottom and from back to front; the rear end of the bottom rod is provided with a group of second mounting holes that are transparent up and down, and the front end of the cutting platform is provided with a plurality of first mounting holes arranged at intervals to the left and right, and the second mounting holes can correspond to any group of first mounting holes up and down, and the second mounting holes and the corresponding first mounting holes are jointly provided with a second screw, and a second nut is threaded on the second screw, and the second screw is used to cooperate with the second nut to clamp the bottom rod to the front end of the cutting platform.

[0014] Advantages of the present invention: The present invention provides a height adjustment mechanism between the cutting platform and the reel to adjust the height of the reel, so that when the harvesting device targets fallen rice, the height of the reel is lowered to avoid the reel being unable to effectively grab and move the fallen rice, so that the fallen rice can enter the cutting platform smoothly, avoiding loss of rice and resulting in reduced rice harvest.

[0015] The utility model provides an angle adjustment mechanism on the star wheel to adjust the inclination angle of the tongs on the rotating rod, so that when the harvesting device targets fallen rice, the inclination angle between the tongs and the cutting knife is reduced, and the tongs are brought closer to the cutting platform under the action of the height adjustment mechanism, so that the tongs can grab the fallen rice and avoid the fallen rice being stuck or unable to be effectively fed into the cutting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Another perspective structural diagram;

[0019] Figure 3 This is a left view of the star wheel on the left side of the utility model;

[0020] Figure 4 This is a right side view of the star wheel on the left side of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the rice support device of the present utility model.

[0022] In the figure: 1. cutting table; 11. cutting knife; 12. flap; 2. reel; 21. star wheel; 22. rotating rod; 23. teeth; 24. fixing frame; 3. height adjustment mechanism; 31. support; 32. first adjusting rod; 33. telescopic device; 34. driving rod; 4. axle seat; 41. rotating shaft; 5. driving motor; 6. angle adjustment mechanism; 61. rotating plate; 62. slide; 63. second adjusting rod; 64. hexagonal screw head; 65. arc groove; 66. first screw; 7. reel support; 71. bottom rod; 72. support rod; 73. second screw. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0024] Example 1: A rice harvesting device, such as Figure 1-5 As shown, it includes a cutting platform 1, a cutting knife 11 is fixedly provided at the front end of the cutting platform 1, and the cutting knife 11 is used to cut the rice from the ground. A reel 2 is rotatably provided on the cutting platform 1, and the reel 2 is used to move and guide the rice stems into the cutting platform 1, while supporting the cutting and cleaning the cutting platform to prevent the cut stems from piling up on the cutting knife 11 and causing the cutter to be blocked. Specifically, the reel 2 includes two star wheels 21 spaced apart on the left and right, and a plurality of rotating rods 22 spaced apart along the circumferential direction thereof are rotatably provided between the two star wheels 21. The rotating rods 22 are fixed with rake teeth 23 spaced apart along the extension direction thereof, and the rake teeth 23 are used to grab the rice by rotating and rake and send it into the cutting platform 1 for cutting; a plurality of fixed frames 24 spaced apart on the left and right are provided between the two star wheels 21, and the plurality of rotating rods 22 are rotatably passed through the plurality of fixed frames 24 in turn, and the fixed frames 24 are used to fix the spacing between the plurality of rotating rods 22.

[0025] The height adjustment mechanism 3 between the cutting platform 1 and the reel 2 is used to adjust the height of the reel 2, so that when the harvesting device targets the fallen rice, the height of the reel 2 is lowered to prevent the reel 2 from being unable to effectively grab and move the fallen rice, so that the fallen rice can enter the cutting platform smoothly and avoid the loss of rice. Specifically, the left and right ends of the cutting platform 1 are fixed with outwardly extending flaps 12, and the flaps 12 are fixed with supports 31. The supports 31 are hinged with a first adjusting rod 32 extending forward. The wheel 2 is arranged between the front ends of the two first adjusting rods 32; a telescopic device 33 is fixedly provided on the left and right sides of the cutting platform 1, and a driving rod 34 is fixedly provided on the piston rod of the telescopic device 33. The top end of the driving rod 34 slides out of the flap 12 and is hinged to the middle part of the first adjusting rod 32; by driving the extension and contraction of the piston rod in the telescopic device 33, the driving rod 34 is driven to move in the up and down directions, and then the first adjusting rod 32 is driven to rotate up and down along the hinge point with the support 31, so as to achieve the purpose of adjusting the height of the reel 2.

[0026] The front end of the first adjusting rod 32 on the left is fixed with an axle seat 4, and a rotating shaft 41 is rotatably provided in the axle seat 4. One end of the rotating shaft 41 passes through the axle seat 4 and is fixedly connected to the star wheel 21 on the left. The axle seat 4 and the rotating shaft 41 are used to support the right end of the reel 2 through the first adjusting rod 32; the front end of the first adjusting rod 32 on the right is fixed with a drive motor 5, and the output shaft of the drive motor 5 is fixedly connected to the star wheel 21 on the right. The drive motor 5 is used to drive the reel 2 to rotate so as to move and guide the rice stalks into the cutting platform 1.

[0027] An angle adjustment mechanism 6 is provided on the star wheel 21 on the left, and the rotating rod 22 is transmission-connected to the angle adjustment mechanism 6. The angle adjustment mechanism 6 is used to adjust the inclination angle of the reaping teeth 23 on the rotating rod 22, so that when the harvesting device targets the fallen rice, the inclination angle between the reaping teeth 23 and the cutter 11 is reduced, so that the reaping teeth 23 are closer to the cutting platform 1 under the action of the height adjustment mechanism 3, so that the reaping teeth 23 can grab the fallen rice, and avoid the fallen rice from being stuck or unable to be effectively fed into the cutting platform 1. Specifically, the angle adjustment mechanism 6 includes a rotating plate 61 rotatably sleeved on the shaft seat 4, and the rotating plate A plurality of slide grooves 62 extending in the radial direction thereof are provided on 61, and the plurality of slide grooves 62 are arranged at intervals in the circumferential direction of the rotating plate 61; the left end of the rotating rod 22 rotates to pass through the star wheel 21 and is fixed with a second adjusting rod 63, and a slider is fixed at the end of the second adjusting rod 63 away from the rotating rod 22, and the plurality of sliders are respectively arranged in the plurality of slide grooves 62; by rotating the rotating plate 61, the second adjusting rod 63 can be driven to rotate through the slide groove 62 and the slider, thereby driving the rotating rod 22 and the teeth 23 to rotate a certain angle, so as to achieve the purpose of adjusting the inclination angle of the teeth 23 located on the rotating rod 22.

[0028] A hexagonal screw head 64 is fixed to the left edge of the rotating plate 61, so that a wrench tool can easily rotate the rotating plate 61 through the hexagonal screw head 64; two left and right transparent through holes are provided on the rotating plate 61, and two left and right transparent arc grooves 65 are provided on the star wheel 21 on the left. The arc grooves 65 correspond to the through holes on the left and right, and the corresponding arc grooves 65 and the through holes are jointly penetrated by a first screw 66, and a first nut is threaded on the first screw 66. The first screw 66 is used to cooperate with the first nut to clamp the rotating plate 61 on the star wheel 21 to fix the adjusted rotating plate 61.

[0029] The front end of the harvesting platform 1 is provided with a plurality of rice supporters 7 arranged at intervals on the left and right. The rice supporters 7 are used to straighten the rice that has fallen to the left and right sides during the harvesting process, so that the rice can smoothly pass through the reel 2 and enter the cutter 11 to avoid rice loss. Specifically, the rice supporter 7 includes a bottom rod 71 provided at the front end of the harvesting platform 1, and the front end of the bottom rod 71 is fixed with a support rod 72 arranged obliquely from top to bottom and from back to front; the rear end of the bottom rod 71 is provided with a group of second mounting holes that are transparent from top to bottom, and the front end of the harvesting platform 1 is provided with a plurality of first mounting holes arranged at intervals on the left and right. The second mounting hole can correspond to any group of first mounting holes up and down, and a second screw 73 is passed through the second mounting hole and the corresponding first mounting hole. A second nut is threaded on the second screw 73, and the second screw 73 is used to cooperate with the second nut to clamp the bottom rod 71 to the front end of the cutting platform 1. By setting multiple groups of first mounting holes, the position of the bottom rod 71 in the left and right directions can be adjusted by the second screw 73 and the second nut, so that the rice supporter 7 can be located between two rows of rice to straighten the fallen rice.

[0030] Working principle: When harvesting fallen rice, the piston rod in the telescopic device 33 is driven to extend and retract, thereby driving the driving rod 34 to move in the up and down directions, thereby driving the first adjusting rod 32 to rotate downward along the hinge point with the support 31, lowering the height of the reel 2, so that the reel 2 can effectively grab and move the fallen rice. At the same time, the hexagonal screw head 64 is screwed by a wrench to drive the rotating plate 61 to rotate. The rotating plate 61 drives the second adjusting rod 63 to rotate through the slide groove 62 and the slider, thereby driving the rotating rod 22 and the tine 23 to rotate a certain angle to reduce the inclination angle between the tine 23 and the cutter 11. The tine 23 is closer to the cutting table 1 under the action of the height adjustment mechanism 3, so that the tine 23 can grab the fallen rice, thereby preventing the fallen rice from being stuck or unable to be effectively delivered to the cutting table 1.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is determined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A rice harvesting device, characterized in that: The invention comprises a cutting platform (1), a cutting knife (11) is fixedly provided at the front end of the cutting platform (1), a reel (2) is rotatably provided on the cutting platform (1), the reel (2) comprises two star wheels (21) spaced apart from each other, a plurality of rotating rods (22) spaced apart along the circumferential direction thereof are rotatably provided between the two star wheels (21), and teeth (23) spaced apart along the extending direction thereof are fixedly provided on the rotating rods (22); A height adjustment mechanism (3) is provided between the cutting platform (1) and the reel (2), and the height adjustment mechanism (3) is used to adjust the height of the reel (2); An angle adjustment mechanism (6) is provided on the star wheel (21) on the left, and a rotating rod (22) is connected to the angle adjustment mechanism (6) in a transmission manner. The angle adjustment mechanism (6) is used to adjust the tilt angle of the teeth (23) on the rotating rod (22).

2. The rice harvesting device according to claim 1, characterized in that: The left and right ends of the cutting platform (1) are both fixed with flaps (12) extending outward, a support (31) is fixed on the flap (12), a first adjustment rod (32) extending forward is hinged on the support (31), and the reel (2) is arranged between the front ends of the two first adjustment rods (32); the left and right sides of the cutting platform (1) are both fixed with telescopic devices (33), the piston rod of the telescopic device (33) is fixed with a driving rod (34), the top end of the driving rod (34) slides through the flap (12) and is hinged to the middle part of the first adjustment rod (32).

3. The rice harvesting device according to claim 2, characterized in that: A shaft seat (4) is fixedly provided at the front end of the first adjusting rod (32) located on the left, a rotating shaft (41) is rotatably provided in the shaft seat (4), one end of the rotating shaft (41) passes through the shaft seat (4) and is fixedly connected to the star wheel (21) located on the left; a driving motor (5) is fixedly provided at the front end of the first adjusting rod (32) located on the right, and an output shaft of the driving motor (5) is fixedly connected to the star wheel (21) located on the right.

4. A rice harvesting device according to claim 1 or 3, characterized in that: The angle adjustment mechanism (6) comprises a rotating plate (61) rotatably sleeved on the shaft seat (4), the rotating plate (61) being provided with a plurality of slide grooves (62) extending in its radial direction, the plurality of slide grooves (62) being arranged at intervals along the circumferential direction of the rotating plate (61); the left end of the rotating rod (22) being rotated to pass through the star wheel (21) and being fixedly provided with a second adjustment rod (63), the end of the second adjustment rod (63) being away from the rotating rod (22) being fixedly provided with a slider, and the plurality of sliders being respectively provided in the plurality of slide grooves (62).

5. The rice harvesting device according to claim 4, characterized in that: A hexagonal screw head (64) is fixed on the left edge of the rotating plate (61); two left and right transparent through holes are provided on the rotating plate (61); two left and right transparent arc grooves (65) are provided on the star wheel (21) located on the left, and the arc grooves (65) correspond to the through holes on the left and right. A first screw (66) is passed through the corresponding arc grooves (65) and the through holes. A first nut is threadedly sleeved on the first screw (66). The first screw (66) is used to cooperate with the first nut to clamp the rotating plate (61) to the star wheel (21).

6. The rice harvesting device according to claim 1, characterized in that: A plurality of fixed frames (24) are arranged at intervals between the two star wheels (21). A plurality of rotating rods (22) are rotated and passed through the plurality of fixed frames (24) in sequence. The fixed frames (24) are used to fix the intervals between the plurality of rotating rods (22).

7. The rice harvesting device according to claim 1, characterized in that: The front end of the cutting platform (1) is provided with a plurality of left and right spaced-apart straw supports (7), the straw supports (7) comprising a bottom bar (71) provided at the front end of the cutting platform (1), a support bar (72) arranged obliquely from top to bottom and from back to front fixedly provided at the front end of the bottom bar (71); a group of second mounting holes which are transparent from top to bottom are provided at the rear end of the bottom bar (71), the front end of the cutting platform (1) is provided with a plurality of left and right spaced-apart first mounting holes, the second mounting holes can correspond to any group of first mounting holes up and down, a second screw (73) is provided in both the second mounting holes and the corresponding first mounting holes, a second nut is provided on a threaded sleeve of the second screw (73), and the second screw (73) is used to cooperate with the second nut to clamp the bottom bar (71) to the front end of the cutting platform (1).

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