Grain lifting and conveying mechanism and combine harvester

Abstract

The utility model relates to the field of harvesters, in particular to a grain lifting conveying mechanism and a combine harvester, which comprise a transmission chain wheel assembly, a mounting frame for mounting the transmission chain wheel assembly and grain lifting claws mounted on the transmission chain wheel assembly, the transmission chain wheel assembly comprises a driving chain wheel, a driven chain wheel, a transmission chain and a driving unit, the driving chain wheel and the driven chain wheel are installed at the two ends of the installation frame respectively, the transmission chain is assembled on the driving chain wheel and the driven chain wheel, the driving unit is installed on the installation frame, and the output end of the driving unit is in linkage transmission with the driving chain wheel. And a plurality of grain lifting claws are uniformly arranged on the transmission chain. The lodging crops can be lifted up and conveyed to a header, so that lodging clusters which are difficult to harvest originally can be smoothly harvested, the loss caused by lodging is reduced, and the harvesting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of harvester, specifically, relate to a kind of supporting wheat conveying mechanism and combine harvester. BACKGROUND

[0002] With the development of large-scale planting, manual harvesting is difficult to meet the demand, and efficient harvesting machinery is urgently needed for agricultural production.

[0003] In actual planting, ear (such as corn, rice, wheat and other crops) often due to wind and rain and other natural factors to lodge. In the face of lodging crops, ordinary harvester is difficult to harvest when harvesting, resulting in lodging crops harvesting difficulty, loss rate is higher, and harvesting efficiency is lower. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of supporting wheat conveying mechanism, it can be supported and transported to cutting platform to the lodging crops, make the lodging ear that originally difficult to harvest also can be successfully harvested, reduce the loss caused by lodging, improve harvesting efficiency.

[0005] Another purpose of the utility model is to provide a kind of combine harvester, it can be supported and transported to cutting platform to the lodging crops, make the lodging ear that originally difficult to harvest also can be successfully harvested, reduce the loss caused by lodging, improve harvesting efficiency.

[0006] The technical scheme of the utility model is as follows:

[0007] A kind of supporting wheat conveying mechanism, for setting in the side of cutting platform;

[0008] The supporting wheat conveying mechanism includes transmission sprocket assembly, mounting bracket for mounting the transmission sprocket assembly and supporting wheat claw mounted on transmission sprocket assembly, the transmission sprocket assembly includes driving sprocket, driven sprocket, transmission chain and drive unit, the driving sprocket and the driven sprocket are respectively mounted at both ends of the mounting bracket, the transmission chain is assembled on the driving sprocket and the driven sprocket, the drive unit is mounted on the mounting bracket, and the output end of the drive unit is linked with the driving sprocket transmission, a plurality of supporting wheat claws are uniformly arranged on the transmission chain.

[0009] Further, the supporting wheat claw is mounted on the transmission chain through supporting wheat claw base;

[0010] One end of the supporting wheat claw base is connected with the transmission chain, and the other end is connected with one end of the supporting wheat claw through a pin shaft assembly.

[0011] Further, the transmission chain comprises an inner chain part and an outer chain part, and a lifting finger sliding channel is arranged on the mounting frame and corresponds to the outer side of the outer chain part. When the lifting finger moves to the lifting finger sliding channel, the end of the lifting finger sliding channel can resist the lifting finger and make the lifting finger in a folded state. The folded lifting finger can slide in the lifting finger sliding channel.

[0012] Further, the end of the lifting finger sliding channel is provided with an arc-shaped guiding part. When the lifting finger contacts the arc-shaped guiding part, the arc-shaped guiding part can make the lifting finger gradually in a folded state and guide the lifting finger to smoothly enter the lifting finger sliding channel.

[0013] Further, the mounting frame is further provided with a chain tensioning mechanism for tensioning the transmission chain.

[0014] Further, the chain tensioning mechanism comprises a threaded rod, a tensioning sprocket assembly, a tensioning bracket and a first compression spring. The tensioning sprocket assembly is mounted to one end of the tensioning bracket. The other end of the tensioning bracket is threadedly connected to one end of the threaded rod. The other end of the threaded rod is movably inserted into the mounting frame. The first compression spring is sleeved on the outside of the threaded rod and located between the tensioning bracket and the mounting frame.

[0015] The tensioning sprocket of the tensioning sprocket assembly is meshingly connected with the transmission chain.

[0016] Further, an adjusting plate is arranged on the mounting frame close to one end of the driving sprocket. A plurality of adjusting hole groups are arranged on the adjusting plate from high to low. A connecting assembly is mounted in the adjusting hole group to connect with the mounting frame.

[0017] Further, each adjusting hole group comprises a plurality of circularly distributed adjusting holes. The adjusting holes are arc-shaped.

[0018] Further, an angle adjusting assembly is arranged on the mounting frame close to one end of the driven sprocket. The angle adjusting assembly comprises a mounting plate arranged on the mounting frame. A plurality of adjusting bolts are arranged on the mounting plate. A second compression spring is arranged on the outside of the screw rod part of the adjusting bolt. A sleeve is arranged on the outside of the second compression spring. The adjusting bolt is used to connect with the divider guard of the header.

[0019] A combine harvester comprises a header and the lifting and conveying mechanism. The lifting and conveying mechanism is arranged on the left and right sides of the header. The driven sprocket is located at the front lower part of the header. The driving sprocket is located at the rear upper part of the header. The lifting and conveying mechanism is used to lift and convey the lodged crops to the header.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This application provides a crop-lifting and conveying mechanism, which can be installed on both the left and right sides of the header and used in conjunction with the header. By installing crop-lifting claws on the transmission chain, the crop-lifting claws can quickly gather and convey the ears of grain to one side during the operation of the transmission chain, speeding up the entire process from harvesting to conveying, improving the overall harvesting efficiency, and enabling faster feeding speed, thus easily increasing the harvesting speed. Moreover, it has a significant effect on harvesting lodged crops. The crop-lifting claws can also lift lodged crops and convey them to the header, so that lodged ears of grain that are originally difficult to harvest can also be harvested smoothly, reducing losses caused by lodging. At the same time, it can also prevent crops from being thrown out during the harvesting process, allowing them to enter the conveying process more orderly and avoiding losses caused by crop scattering. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view schematic diagram of the harvester's conveyor mechanism installed on the header.

[0024] Figure 2 This utility model Figure 1 Sectional view at point AA;

[0025] Figure 3 This is a schematic diagram of the structure of the crop-supporting claw of this utility model;

[0026] Figure 4 This is a partial structural schematic diagram of the grain-lifting and conveying mechanism of this utility model;

[0027] Figure 5 This utility model Figure 2 View from the C-direction;

[0028] Figure 6 This utility model Figure 2 View from the D direction;

[0029] Figure 7 This is a schematic diagram of the sprocket tensioning mechanism of this utility model;

[0030] Figure 8 This utility model Figure 2 Enlarged view of the local structure at point A in the middle.

[0031] Fig.:

[0032] 1 - drive sprocket assembly; 101 - driving sprocket; 102 - driven sprocket; 103 - drive chain; 1031 - inner chain portion; 1032 - outer chain portion; 104 - driving unit;

[0033] 2 - mounting bracket; 3 - supporting reel; 4 - supporting reel base; 5 - supporting reel slide;

[0034] 6 - arc-shaped guide portion; 7 - chain tensioning mechanism; 701 - threaded rod; 702 - tensioning sprocket assembly; 703 - tensioning bracket; 704 - first compression spring;

[0035] 8 - adjusting plate; 801 - adjusting hole set; 8011 - adjusting hole;

[0036] 9 - angle adjusting assembly; 901 - mounting plate; 902 - adjusting bolt; 903 - second compression spring; 904 - sleeve;

[0037] 10 - header; 11 - pin shaft assembly. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0040] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0041] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, or it is the orientation or position relation that the utility model product uses usually, only is for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, constructs and operates with a particular orientation, therefore can not be understood as the limitation of the utility model. In addition, the term "first", "second", "third" and so on are only used for distinguishing description, and can not be understood as indicating or implying relative importance.

[0042] In addition, the terms "horizontal", "vertical", "overhang" and so on do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0043] In the description of the utility model, it also needs to explain that, unless there is explicit provision and limitation, the terms "set", "mount", "connect", "connect" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] Some embodiments of the utility model will be described in detail below in combination with the drawings. In the case of no conflict, the following examples and the features in the examples can be combined with each other.

[0045] Example 1

[0046] Referring to Figures 1-8 , the embodiment provides a support and transport mechanism, which is arranged on the side of the header 10;

[0047] The support and transport mechanism comprises a transmission sprocket assembly 1, a mounting frame 2 mounting the transmission sprocket assembly 1 and a support and transport claw 3 mounted on the transmission sprocket assembly 1, the transmission sprocket assembly 1 comprises a driving sprocket 101, a driven sprocket 102, a transmission chain 103 and a driving unit 104, the driving sprocket 101 and the driven sprocket 102 are respectively mounted on both ends of the mounting frame 2, the transmission chain 103 is assembled on the driving sprocket 101 and the driven sprocket 102, the driving unit 104 is mounted on the mounting frame 2, and the output end of the driving unit 104 is linked with the driving sprocket 101 in transmission, and a plurality of support and transport claws 3 are uniformly arranged on the transmission chain 103.

[0048] Specifically, the straw supporting claw 3 is installed on the transmission chain 103 through a straw supporting claw base 4;

[0049] One end of the straw supporting claw base 4 is connected with the transmission chain 103, and the other end is connected with one end of the straw supporting claw 3 through a pin shaft assembly 11. The other end of the straw supporting claw base 4 is in a U shape for accommodating the straw supporting claw 3. The U-shaped part of the straw supporting claw 3 and one end of the straw supporting claw 3 are respectively provided with pin holes, and the pin shaft assembly 11 is jointly installed in the pin holes to establish a rotary connection between the straw supporting claw 3 and the straw supporting claw base 4. The straw supporting claw 3 can rotate around the pin shaft assembly 11.

[0050] After the straw supporting conveying mechanism is actually installed on the cutting table 10, one end of the mounting frame 2 close to the driving sprocket 101 is located at the rear end of the cutting table 10, and the other end close to the driven sprocket 102 is located at the front end of the cutting table 10. The transmission chain 103 includes an inner chain part 1031 close to the inner side of the cutting table 10 and an outer chain part 1032 close to the outer side of the cutting table 10. The mounting frame 2 is further provided with a straw supporting claw slide 5 (which can also be referred to as a guide rail welding piece). The straw supporting claw slide 5 is arranged on the outer side of the outer chain part 1032. When the straw supporting claw 3 moves to the straw supporting claw slide 5 with the rotation of the transmission chain 103, the end of the straw supporting claw slide 5 can resist the straw supporting claw 3 and make the straw supporting claw 3 in a folded state. The folded straw supporting claw 3 can slide in the straw supporting claw slide 5 along the straw supporting claw slide 5. In this way, the straw supporting claw 3 on the outer side is in a folded state, effectively shortening the width of the entire straw supporting conveying mechanism, saving space. The material of the straw supporting claw 3 is designed to be metal or plastic. When the straw supporting claw 3 is made of plastic, for example, nylon, the nylon straw supporting claw 3 has high wear resistance and low noise during operation. When the straw supporting claw 3 is made of metal, for example, 40MN alloy steel, the metal straw supporting claw 3 is suitable for grabbing and conveying thicker stems. It has high strength, wear resistance and corrosion resistance. The material of the straw supporting claw 3 can be selected according to different crops.

[0051] In this embodiment, the end of the straw supporting claw slide 5 is further provided with an arc-shaped guide part 6. When the straw supporting claw 3 contacts the arc-shaped guide part 6, the arc-shaped guide part 6 resists the straw supporting claw 3, and the straw supporting claw 3 rotates around the pin shaft assembly 11 on it to be folded. As the straw supporting claw 3 gradually approaches the straw supporting claw slide 5, the straw supporting claw 3 gradually enters a folded state and is guided to smoothly enter the straw supporting claw slide 5 under the guidance of the arc-shaped guide part 6.

[0052] The mounting frame 2 is further provided with a chain tensioning mechanism 7 for tensioning the transmission chain 103.

[0053] The chain tensioning mechanism 7 comprises a threaded rod 701, a tensioning sprocket assembly 702, a tensioning bracket 703 and a first compression spring 704. The tensioning sprocket assembly 702 is mounted on one end of the tensioning bracket 703. The other end of the tensioning bracket 703 is threadedly connected to one end of the threaded rod 701 and locked by a locking nut. The other end of the threaded rod 701 is movably inserted into the mounting bracket 2. The mounting bracket 2 is provided with a screw rod movable hole. The threaded rod 701 is arranged in the screw rod movable hole. The free end of the threaded rod 701 is provided with a blocking piece for blocking the threaded rod 701 from falling out of the screw rod movable hole. The first compression spring 704 is sleeved outside the threaded rod 701 and located between the tensioning bracket 703 and the mounting bracket 2. The tensioning sprocket of the tensioning sprocket assembly 702 is meshingly connected with the transmission chain 103. When the load of the supporting and lifting claw 3 is too large, the first compression spring 704 is compressed to play an overload protection role. In addition, the driving unit 104 can also be provided with overload protection. The driving unit 104 can adopt a hydraulic motor or a rotary motor. The rotary motor can be provided with a motor torque limiter or the hydraulic motor can be provided with a hydraulic overflow valve. When the load is too large, the driving unit 104 is automatically cut off to prevent the driving unit 104 from being damaged or the chain from being broken, thereby realizing double overload protection.

[0054] The adjusting plate 8 is arranged on one end of the mounting bracket 2 close to the driving sprocket 101. A plurality of adjusting hole groups 801 are arranged on the adjusting plate 8 from high to low. A connecting assembly is arranged in the adjusting hole group 801 to connect with the mounting bracket 2. The connecting assembly can adopt a bolt assembly. In actual assembly, the lower part of the adjusting plate 8 can be fixed on the upper side of the divider rear side. The mounting bracket 2 is mounted on the cutting table 10 through the adjusting plate 8.

[0055] Each adjusting hole group 801 comprises four circularly distributed adjusting holes 8011. The adjusting holes 8011 are arc-shaped. As shown in Figure 5 The bolt assembly can be arranged in the adjusting hole 8011 to connect and fix the adjusting plate 8 with the mounting bracket 2. The position of the bolt 902 assembly in the arc-shaped adjusting hole 8011 can be adjusted to realize multi-azimuth angle adjustment of the mounting bracket 2. When the mounting bracket 2 needs to be lowered, the bolt assembly can be arranged in the adjusting hole 8011 at the lower position of the adjusting plate 8 to connect and fix the mounting plate 901, so as to lower the mounting bracket 2 and the rear end of the supporting and conveying mechanism. The inclination angle of the supporting and conveying device can be adjusted by this method.

[0056] The end of the mounting frame 2 close to the driven sprocket 102 (i.e. the front end of the mounting frame 2) is also provided with an angle adjusting assembly 9, the angle adjusting assembly 9 comprises a mounting plate 901, two adjusting bolts 902 are arranged on the mounting plate 901, the outer side of the screw rod part of the adjusting bolt 902 is provided with a second compression spring 903, the outer side of the second compression spring 903 is provided with a sleeve 904, the adjusting bolt 902 is used for being connected with the divider guard of the header 10, as shown in Figure 6 and Figure 8 .

[0057] The corn harvesting machine header 10 can be applied to the existing corn harvesting machine header 10, and the overall angle can be adjusted according to the lodging condition: the front side of the corn harvesting machine header 10 is mounted above the divider guard body on the left and right sides of the header 10, the left and right angles of the front side are adjusted through the second compression spring 903, the angle and the rear side height are adjusted through the adjusting plate 8, and the overall adjustment is realized through cooperation, the greater the inside angle of the corn harvesting machine header 10, the higher the lodging effect, and the connection mode of the corn harvesting machine header 10 is the pin type, which is quick and convenient to replace, and the problem of grass entanglement on the left and right sides of the divider can be solved.

[0058] Embodiment 2

[0059] A combine harvester comprises a header 10 and the corn harvesting machine header 10, the left and right sides of the header 10 are respectively provided with the corn harvesting machine header 10, the front side of the corn harvesting machine header 10 is mounted above the divider guard body on the left and right sides of the header 10, the lower part of the adjusting plate 8 can be fixed above the rear side of the divider, the driven sprocket 102 is located at the front lower part of the header 10, the rear upper part of the driving sprocket 101, and the corn harvesting machine header 10 is mainly used for lifting and conveying the lodged crops to the header 10.

[0060] The corn harvesting machine header 10 has the beneficial effects of the technical scheme:

[0061] 1. Improve the harvesting efficiency: the ear can be quickly gathered and transported to one side, the whole process from harvesting to transportation is accelerated, the overall harvesting efficiency is improved, the feeding speed can be faster, and the harvesting speed can be easily improved.

[0062] 2. Deal with lodged crops: the harvesting effect of the lodged crops is remarkable, the lodged crops can be lifted and transported to the header 10, and the lodged ears can also be successfully harvested, so that the loss caused by lodging is reduced.

[0063] 3. Prevent the ears from scattering: the ears can be prevented from being thrown out during the harvesting process, and can be more orderly into the transportation process, so that the loss caused by scattering is avoided.

[0064] 4. Optimize the transportation effect: the corn harvesting machine header 10 has the characteristics of uniform, smooth and fast feeding, and improves the transportation effect.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and 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 present application.

[0066] The above is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously modified and changed. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A stand of grain conveying mechanism, characterized by, For setting in the side of the header (10); The supporting and conveying mechanism comprises a driving sprocket assembly (1), a mounting frame (2) mounting the driving sprocket assembly (1), and a supporting and conveying claw (3) mounted on the driving sprocket assembly (1). The driving sprocket assembly (1) comprises a driving sprocket (101), a driven sprocket (102), a driving chain (103), and a driving unit (104). The driving sprocket (101) and the driven sprocket (102) are respectively mounted on two ends of the mounting frame (2). The driving chain (103) is assembled on the driving sprocket (101) and the driven sprocket (102). The driving unit (104) is mounted on the mounting frame (2), and the output end of the driving unit (104) is linked with the driving sprocket (101) for transmission. A plurality of the supporting and conveying claws (3) are uniformly arranged on the driving chain (103).

2. The furrow conveyance mechanism of claim 1, wherein, The supporting and conveying claw (3) is mounted on the driving chain (103) through a supporting and conveying claw base (4). One end of the supporting and conveying claw base (4) is connected with the driving chain (103), and the other end is connected with one end of the supporting and conveying claw (3) through a pin shaft assembly (11).

3. The furrow conveyance mechanism of claim 2, wherein, The driving chain (103) comprises an inner chain portion (1031) and an outer chain portion (1032). The mounting frame (2) is further provided with a supporting and conveying claw slide (5) arranged on the outer side of the outer chain portion (1032). When the supporting and conveying claw (3) moves to the supporting and conveying claw slide (5), the end of the supporting and conveying claw slide (5) can resist the supporting and conveying claw (3) and make the supporting and conveying claw (3) in a folded state. The folded supporting and conveying claw (3) can slide in the supporting and conveying claw slide (5) along the supporting and conveying claw slide (5).

4. The furrow conveyance mechanism of claim 3, wherein, The end of the supporting and conveying claw slide (5) is further provided with an arc-shaped guide portion (6). When the supporting and conveying claw (3) contacts the arc-shaped guide portion (6), the arc-shaped guide portion (6) can make the supporting and conveying claw (3) gradually in a folded state, and guide the supporting and conveying claw (3) to smoothly enter the supporting and conveying claw slide (5).

5. The support wheel conveying mechanism according to claim 1, wherein The mounting frame (2) is further provided with a chain tensioning mechanism (7) for tensioning the driving chain (103).

6. The furrow conveyance mechanism of claim 5, wherein, The chain tensioning mechanism (7) comprises a threaded rod (701), a tensioning sprocket assembly (702), a tensioning bracket (703), and a first compression spring (704). The tensioning sprocket assembly (702) is mounted on one end of the tensioning bracket (703). The other end of the tensioning bracket (703) is threadedly connected with one end of the threaded rod (701). The other end of the threaded rod (701) is movably inserted into the mounting frame (2). The first compression spring (704) is sleeved on the outside of the threaded rod (701) and located between the tensioning bracket (703) and the mounting frame (2). The tensioning sprocket of the tensioning sprocket assembly (702) is meshingly connected with the driving chain (103).

7. The support wheel conveying mechanism according to claim 1, wherein Further comprising an adjusting plate (8), one end of the mounting frame (2) is provided with the adjusting plate (8) near the driving sprocket (101), a plurality of adjusting hole groups (801) are arranged from high to low on the adjusting plate (8), and a connecting assembly is mounted in the adjusting hole group (801) to be connected with the mounting frame (2).

8. The furrow conveyance mechanism of claim 7, wherein, Each of the adjusting hole groups (801) comprises a plurality of adjusting holes (8011) arranged in a circular manner, and the adjusting holes (8011) are arranged in an arc shape.

9. The support wheel conveying mechanism according to claim 1, wherein Further comprising an angle adjusting assembly (9) provided on one end of the mounting frame (2) near the driven sprocket (102), the angle adjusting assembly (9) comprises a mounting plate (901) provided on the mounting frame (2), a plurality of adjusting bolts (902) are provided on the mounting plate (901), a second compression spring (903) is provided on the outer side of the screw rod part of the adjusting bolt (902), a sleeve (904) is provided on the outer side of the second compression spring (903), and the adjusting bolt (902) is used to be connected with a divider shield of a cutting platform (10).

10. A combine harvester comprising a header (10), characterised in that Further comprising the supporting and conveying mechanism according to any one of claims 1-9, the supporting and conveying mechanism is arranged on the left and right sides of the cutting platform (10) respectively, the driven sprocket (102) is located at the lower front part of the cutting platform (10), and the driving sprocket (101) is located at the upper rear part of the cutting platform (10), and the supporting and conveying mechanism is used to support and convey the lodged crops to the cutting platform (10).

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