Threshing device and harvester

Abstract

The utility model relates to a threshing device which comprises a speed change mechanism, a tangential flow roller (1) and a longitudinal axial flow roller (2), the tangential flow roller (1) and the longitudinal axial flow roller (2) are sequentially arranged according to the material feeding sequence, a separation concave plate (4) is arranged below the tangential flow roller (1), and a threshing concave plate (6) is arranged below the longitudinal axial flow roller (2). The speed change mechanism comprises a first speed change mechanism (11) used for adjusting the tangential flow roller (1) and a second speed change mechanism (12) used for adjusting the rotating speed of the longitudinal axial flow roller (2). According to the threshing device, shutdown is not needed when the rotating speed ratio of the tangential flow roller to the longitudinal axial flow roller is adjusted, and operation is easy and convenient. In addition, the utility model further relates to a harvester.

Description

Technical Field

[0001] The utility model relates to an agricultural machine, in particular to a threshing device. Further, the utility model relates to a harvester. Background Art

[0002] The threshing device is one of the most important parts of the harvester. The function of the threshing device is to remove and separate the crop seeds from the crop pillars. Its performance determines the threshing performance and production efficiency of the harvester.

[0003] When harvesting different materials, the combined threshing device of the tangential flow drum, the feeding roller and the longitudinal flow drum needs to adjust the speed ratio of the tangential flow drum and the longitudinal flow drum to enable the combined threshing device to maintain a high threshing effect. However, the combined threshing device of the tangential flow drum and the longitudinal flow drum in the prior art cannot directly adjust the speed ratio of the tangential flow drum and the longitudinal flow drum. When harvesting different materials, it is necessary to stop the machine, remove the outer shell and replace the belt between the tangential flow drum and the longitudinal flow drum, which is inconvenient to operate.

[0004] In view of this, it is necessary to design a threshing device that can overcome the above technical difficulties and effectively solve or alleviate the above technical defects. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a threshing device which does not need to be stopped when adjusting the speed ratio of the tangential flow drum and the longitudinal axial flow drum, and is relatively simple to operate.

[0006] Furthermore, the technical problem to be solved by the present invention is to provide a harvester which does not need to be shut down when adjusting the rotational speed ratio of the tangential flow drum and the longitudinal axial flow drum, and is relatively easy to operate.

[0007] In order to solve the above technical problems, the utility model provides a threshing device, which includes a speed change mechanism and a tangential flow drum and a longitudinal flow drum arranged in sequence according to the order of material feeding, a separation concave plate is provided under the tangential flow drum, and a threshing concave plate is provided under the longitudinal flow drum. The speed change mechanism includes a first speed change mechanism for adjusting the tangential flow drum and a second speed change mechanism for adjusting the rotational speed of the longitudinal flow drum.

[0008] Preferably, the first speed change mechanism and / or the second speed change mechanism is a continuously variable speed change mechanism.

[0009] Preferably, the threshing device also includes an acceleration feed roller, which is arranged between the tangential flow drum and the longitudinal flow drum, and is used to feed the material passing through the tangential flow drum into the longitudinal flow drum. The acceleration feed roller and the tangential flow drum are transmission-connected so that the rotational speed of the acceleration feed roller matches the rotational speed of the tangential flow drum.

[0010] Preferably, the threshing machine further comprises a drum cover, which is arranged on the upper side of the longitudinal axial flow drum, and the drum cover and the threshing concave plate cooperate to form a chamber surrounding the longitudinal axial flow drum.

[0011] Specifically, the longitudinal flow drum includes a feeding section, a threshing section and a separation section arranged in sequence, the feeding section is formed with a feeding cone, and a plurality of feeding blades are provided on the feeding cone. The threshing section is provided with multiple groups of threshing plate teeth arranged along a spiral line, and the separation section is provided with multiple groups of separation plate teeth arranged along a spiral line.

[0012] Preferably, the threshing plate teeth are flexible threshing plate teeth.

[0013] Preferably, the feeding blade includes a fixed blade and an assembly blade, the fixed blade is fixed on the feeding cone, and the assembly blade is detachably mounted on the fixed blade.

[0014] Preferably, reinforcing ribs are provided between the feeding cone and the fixed blades.

[0015] Preferably, the length of the longitudinal flow drum is greater than or equal to 3000 mm and less than or equal to 3400 mm, the length of the acceleration feed roller is greater than or equal to 1100 mm and less than or equal to 1400 mm, and the length of the tangential flow drum is greater than or equal to 1100 mm and less than or equal to 1400 mm.

[0016] On the basis of the technical solution of the threshing device of the present invention, the present invention further provides a harvester, which includes the threshing device described in any of the above technical solutions.

[0017] Through the above technical scheme, the threshing device of the utility model adopts a combined threshing device of a tangential flow drum and a longitudinal axial flow drum. The fed material is first threshed by the tangential flow drum and then further threshed by the longitudinal axial flow drum, and the threshing effect is better. A speed change mechanism capable of adjusting the rotational speeds of the tangential flow drum and the longitudinal axial flow drum is provided. The rotational speeds of the tangential flow drum and the longitudinal axial flow drum are adjusted by the speed change structure according to the type of material, so that the rotational speeds and the rotational speed ratio of the tangential flow drum and the longitudinal axial flow drum are configured to be suitable for threshing the material. Therefore, when the threshing device threshes different types of materials, the rotational speed ratio of the tangential flow drum and the longitudinal axial flow drum can be directly adjusted by the speed change mechanism without stopping the machine, so that the threshing device has a better threshing effect when threshing different types of materials, and the adjustment process is more convenient.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view of a threshing device according to a specific embodiment of the present utility model;

[0020] Figure 2 It is a top view of a threshing device according to a specific embodiment of the present utility model;

[0021] Figure 3 It is a structural schematic diagram of a longitudinal axial flow drum according to a specific embodiment of the present invention.

[0022] Description of Reference Numerals

[0023] 1 Tangential flow roller 2 Longitudinal flow roller

[0024] 3 Acceleration feed roller 4 Separation concave plate

[0025] 5 drum cover 6 threshing concave plate

[0026] 7 Feed cone 8 Feed blade

[0027] 801 fixed blade 802 assembly blade

[0028] 9 threshing plate teeth 10 separation plate teeth

[0029] 11 First speed change mechanism 12 Second speed change mechanism DETAILED DESCRIPTION

[0030] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention. The present invention can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

[0031] The present invention provides these embodiments to make the present invention thorough and complete, and to fully convey the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangements of parts and steps, material components, numerical expressions and numerical values ​​described in these embodiments should be interpreted as merely exemplary and not as limiting.

[0032] It should be noted that, in the description of this utility model, unless otherwise specified, "plurality" means greater than or equal to two. Terms such as "upper," "lower," "inner," and "outer" indicating positions or location relationships are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. When the absolute position of the objects being described changes, the relative positional relationships may also change accordingly.

[0033] In addition, the terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are simply used to distinguish different parts. The terms "include," "comprise," and similar terms mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0035] All terms used in this utility model have the same meaning as those understood by ordinary technicians in the field to which this utility model belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0036] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0037] like Figure 1 and Figure 2 As shown, the threshing device of the present invention includes a cutting flow drum 1, a longitudinal flow drum 2, a separation concave plate 4, a threshing concave plate 6 and a speed change mechanism. The longitudinal flow drum 2 is arranged at the rear end corresponding to the cutting flow drum 1, the separation concave plate 4 is arranged below the cutting flow drum 1, and the threshing concave plate 6 is arranged below the longitudinal flow drum 2. The speed change mechanism includes a first speed change mechanism 11 for adjusting the cutting flow drum 1 and a second speed change mechanism 12 for adjusting the rotation speed of the longitudinal flow drum 2. In some specific usage conditions, the threshing device of this embodiment has a front end corresponding to the bridge setting of the cutting flow drum 1, and the material is input into the cutting flow drum 1 through the bridge. The cutting flow drum 1 rotates to drive the material to rotate. The cutting flow drum 1 cooperates with the separation concave plate 4 to perform preliminary threshing on the material, and the material after preliminary threshing is The material is transported to the longitudinal flow drum 2, and the longitudinal flow drum 2 cooperates with the threshing concave plate 6 to further thresh the material to achieve grain separation. The threshing device of this embodiment performs two threshings, and the threshing effect is better. The first speed change mechanism 11 and the second speed change mechanism 12 of the threshing device of the utility model can adjust the rotational speeds of the tangential flow drum 1 and the longitudinal flow drum 2 respectively, so that the threshing device can adjust the rotational speeds of the tangential flow drum 1 and the longitudinal flow drum 2 according to the type of material input into the tangential flow drum 1, so that the rotational speeds and the rotational speed ratio of the tangential flow drum 1 and the longitudinal flow drum 2 are configured to be suitable for improving the threshing effect of the threshing device when threshing the material, and thus the threshing device of the utility model has a better threshing effect when threshing different types of materials.

[0038] As a preferred embodiment, Figure 1 and Figure 2 As shown, the first speed changing mechanism 11 and / or the second speed changing mechanism 12 are stepless speed changing mechanisms, so that the cutting flow drum 1 and / or the longitudinal axial flow drum 2 of this embodiment can be steplessly regulated, and the speed regulation is more precise, so that the speed ratio adjustment of the first speed changing mechanism 11 and the second speed changing mechanism 12 is more precise, which is beneficial to improving the threshing effect of the threshing device.

[0039] When some embodiments are applied to a harvester, two groups of control buttons are provided in the cab of the harvester, and the two groups of control buttons correspond to the first speed change mechanism 11 and the second speed change mechanism 12 respectively. The two groups of control buttons are used to control the circuit control group corresponding to the first speed change mechanism 11 and the circuit control group corresponding to the second speed change mechanism 12 respectively. The circuit control group corresponding to the first speed change mechanism 11 adjusts the power supply to the cutting flow drum 1, thereby changing the rotational speed of the cutting flow drum 1, and the circuit control group corresponding to the second speed change mechanism 12 adjusts the power supply to the longitudinal flow drum 2, thereby changing the rotational speed of the longitudinal flow drum 2. Then, the operator can directly operate the control buttons in the cab to adjust the rotational speeds of the cutting flow drum 1 and the longitudinal flow drum 2, and change the rotational speed ratio of the cutting flow drum 1 and the longitudinal flow drum 2, so that the threshing device of this embodiment can maintain a good threshing effect when threshing different materials, and there is no need to replace the pulleys and belts, and the operation is more convenient and simple.

[0040] As a preferred embodiment, Figure 1 As shown, the threshing device of the present invention also includes an accelerating feeding roller 3, which is arranged between the tangential flow drum 1 and the longitudinal flow drum 2. The accelerating feeding roller 3 is used to feed the feed passing through the tangential flow drum 1 into the longitudinal flow drum 2. On the one hand, the accelerating feeding roller 3 can pre-thresh the material and reduce the pressure of the longitudinal flow drum 2. On the other hand, it can accelerate the material output by the tangential flow drum 1 to the front end of the longitudinal flow drum 2 to prevent the material from accumulating between the tangential flow drum 1 and the longitudinal flow drum 2 and causing the front end of the longitudinal flow drum 2 to be blocked, thereby improving the feeding speed and feeding amount.

[0041] As a preferred embodiment, Figure 1 As shown, the threshing device of this embodiment also includes a drum cover 5, which is arranged on the upper side of the longitudinal flow drum 2. The drum cover 5 and the threshing concave 6 cooperate to form a chamber surrounding the longitudinal flow drum 2. After the material enters the longitudinal flow drum 2, it collides with the threshing concave 6 under the drive of the longitudinal flow drum 2 to achieve seed material separation. Under the guidance of the drum cover 5, the material moves backward. The drum cover 5 and the threshing concave 6 of this embodiment form a closed structure, which is more stable, has a longer service life, and has a better threshing effect. In some embodiments, the threshing device also includes a debris elevator arranged at the rear end of the longitudinal flow drum 2, and the debris is returned to the longitudinal flow drum 3 through the debris elevator, further improving the threshing effect of the material and reducing grain loss.

[0042] As a specific implementation method, Figure 3As shown, the longitudinal flow drum 2 forms a feeding section, a threshing section, and a separation section from one end close to the tangential flow drum 1 to the opposite end. The feeding section is formed with a feeding cone 7, and a plurality of feeding blades 8 are provided on the feeding cone 7. The threshing section is provided with multiple groups of threshing plate teeth 9 arranged along a spiral line, and the separation section is provided with multiple groups of separation plate teeth 10 arranged along a spiral line. The threshing plate teeth 9 arranged along the spiral line are conducive to the threshing device obtaining long straw after harvesting. In some preferred embodiments, the pitch of the threshing plate teeth 9 is greater than the pitch of the separation plate teeth 10. The longitudinal flow drum 2 of this embodiment is conducive to the discharge of longer and faster Platycodon grandiflorus.

[0043] As a preferred embodiment, the threshing plate teeth 9 are flexible threshing plate teeth, which reduces grain loss.

[0044] As a preferred embodiment, the feeding blade 8 includes a fixed blade 801 and an assembly blade 802. The fixed blade 801 is fixed on the feeding cone 7, and the assembly blade 802 is detachably mounted on the fixed blade 801. In some specific embodiments, the fixed blade 801 is welded to the feeding cone 7, and the assembly blade 802 is connected to the fixed blade 801 by a countersunk bolt. When inspecting and replacing the feeding blade 8, the assembly blade 802 can be directly removed and replaced, which is more convenient.

[0045] As a preferred embodiment, reinforcing ribs are provided between the feed cone 7 and the fixed blades 801 to enhance the structural strength of the feed blades 8 .

[0046] As a preferred embodiment, the length of the longitudinal flow drum 2 is 3000-3400mm, and the length of the accelerating feed roller 3 and the tangential flow drum 1 is 1100-1400mm. This further improves threshing capacity, increases the redundancy of the longitudinal flow drum 2, and effectively prevents material blockage. To prevent the longitudinal flow drum 2 from being too long and causing the vehicle height to exceed the limit, the longitudinal flow drum 2 is placed horizontally or tilted 3-5 degrees. In some embodiments, the tangential flow drum 1 adopts a long-grained rod structure for better threshing performance, and the accelerating feed roller adopts a long-toothed plate structure, which increases feeding smoothness and further improves feeding speed and feed volume.

[0047] like Figures 1 to 3As shown, the utility model provides a preferred threshing device. The threshing device of this embodiment includes a body, a tangential flow drum 1, a longitudinal flow drum 2, an accelerating feeding roller 3, a separating concave plate 4, a drum cover 5, a threshing concave plate 6, a first speed change mechanism 11 and a second speed change mechanism 12. The tangential flow drum 1, the longitudinal flow drum 2, the accelerating feeding roller 3, the separating concave plate 4 and the threshing concave plate 6 are all installed on the body, the longitudinal flow drum 2 is arranged at the rear end of the tangential flow drum 1, the accelerating feeding roller 3 is arranged between the tangential flow drum 1 and the longitudinal flow drum 2, the separating concave plate 4 is arranged below the tangential flow drum 1 and the accelerating feeding roller 3, the threshing concave plate 6 is arranged below the longitudinal flow drum 2, the drum cover 5 is arranged on the upper side of the longitudinal flow drum 2, the drum cover 5 and the threshing concave plate 6 cooperate to form a chamber surrounding the longitudinal flow drum 2, the first speed change mechanism 11 is connected to the tangential flow drum 1, and the second speed change mechanism 12 is connected to the longitudinal flow drum 2. The threshing device is used for threshing. When the material is input into the front end of the tangential flow drum 1, the tangential flow drum 1 rotates and cooperates with the separation concave plate 4 to perform preliminary threshing on the material, and transports the material to the rear end of the tangential flow drum 1. The accelerating feeding roller 3 transports the material at the rear end of the tangential flow drum 1 to the front end of the longitudinal flow drum 2, which plays a role in accelerating feeding, avoiding material blockage between the tangential flow drum 1 and the longitudinal flow drum 2, and increasing the feeding amount. The accelerating feeding roller 3 cooperates with the separation concave plate 4 to pre-thresh the material, reducing the pressure of the longitudinal flow drum 2. The longitudinal flow drum 2 rotates to drive the material to rotate. A plurality of guide strips are provided on the inner side of the drum cover 5. The guide strips on the drum cover 5 guide the material, causing the material to move backward. The threshing concave plate 6 collides with the material to separate the grass seeds. The threshing device of this embodiment adopts the combination of the tangential flow drum 1, the longitudinal flow drum 2 and the accelerating feeding roller 3 to improve the threshing effect. The closed longitudinal flow drum structure formed by the longitudinal flow drum 2, the drum cover 5 and the threshing concave plate 6 is more stable, has a longer service life and a better threshing effect. This embodiment can separately adjust the rotational speeds of the tangential flow drum 1 and the longitudinal flow drum 2 by setting the first speed changing mechanism 11 and the second speed changing mechanism 12, so that when the threshing device threshes different materials, the rotational speed ratio of the tangential flow drum and the longitudinal flow drum 2 can be directly adjusted through the first speed changing mechanism 11 and the second speed changing mechanism 12 without replacing the pulley and the belt.The longitudinal flow drum 2 of this embodiment forms a feeding section, a threshing section and a separation section in sequence from one end close to the tangential flow drum 1 to the other opposite end. The feeding section is formed with a feeding cone 7, and a plurality of feeding blades 8 are arranged on the feeding cone 7. The feeding blades 8 include fixed blades 801 and assembly blades 802. The fixed blades 801 are fixed on the feeding cone 7. Reinforcing ribs are provided between the fixed blades 801 and the feeding cone 7 to strengthen the strength of the feeding blades 8. The assembly blades 802 are detachably mounted on the fixed blades 801 to facilitate the later maintenance and replacement of the feeding blades 8. The threshing section is provided with multiple groups of threshing plate teeth 9 arranged along a spiral line, and the separation section is provided with multiple groups of separation plate teeth 10 arranged along a spiral line to obtain long straw after threshing. The threshing plate teeth 9 are flexible threshing plate teeth to reduce grain loss. The pitch of the threshing plate teeth 9 is greater than the pitch of the separation plate teeth 10, which is conducive to longer and faster discharge of straw. The first speed changing mechanism 11 and the second speed changing mechanism 12 are both stepless speed changing mechanisms, so that the rotational speeds of the tangential flow drum 1 and the longitudinal axial flow drum 2 can be freely adjusted, and the rotational speed ratio of the tangential flow drum 1 and the longitudinal axial flow drum 2 can be adjusted more accurately, which is beneficial to improving the threshing effect of the separation device.

[0048] On the basis of the threshing device mentioned in the above technical solution of the present invention, the present invention further provides a harvester, which includes the threshing device mentioned in the present application.

[0049] From the above description, it can be seen that the advantages of the present invention are: first, the threshing device which adopts the combination of the tangential flow drum, the acceleration feeding roller and the longitudinal axial flow drum has a larger feeding amount, a stronger feeding capacity and a better threshing effect; second, the acceleration feeding roller effectively prevents material blockage; third, the speed ratio of the tangential flow drum and the longitudinal axial flow drum is adjusted by a speed changing mechanism, and the threshing effect is better when threshing different materials; fourth, the flexible threshing plate teeth arranged along the spiral line are used to reduce grain loss and meet the customer's grass length requirements; fifth, the feeding blades are easy to inspect and replace.

[0050] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0052] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A threshing device, characterized in that: The invention comprises a speed change mechanism and a tangential flow drum (1) and a longitudinal flow drum (2) arranged in sequence according to the order in which materials are fed. A separation concave plate (4) is provided below the tangential flow drum (1), and a threshing concave plate (6) is provided below the longitudinal flow drum (2). The speed change mechanism comprises a first speed change mechanism (11) for adjusting the speed of the tangential flow drum (1) and a second speed change mechanism (12) for adjusting the speed of the longitudinal flow drum (2).

2. The threshing device according to claim 1, characterized in that The first speed change mechanism (11) and / or the second speed change mechanism (12) is a continuously variable speed change mechanism.

3. The threshing device according to claim 1, characterized in that The invention also includes an accelerating feed roller (3), which is arranged between the tangential flow drum (1) and the longitudinal flow drum (2). The accelerating feed roller (3) is used to feed the material passing through the tangential flow drum (1) into the longitudinal flow drum (2). The accelerating feed roller (3) and the tangential flow drum (1) are connected by transmission so that the rotation speed of the accelerating feed roller (3) matches the rotation speed of the tangential flow drum (1).

4. The threshing device according to claim 1, characterized in that It also includes a drum cover (5), which is arranged on the upper side of the longitudinal axial flow drum (2), and the drum cover (5) and the threshing concave plate (6) cooperate to form a chamber surrounding the longitudinal axial flow drum (2).

5. The threshing device according to claim 1, characterized in that The longitudinal flow drum (2) comprises a feeding section, a threshing section and a separating section which are arranged in sequence, the feeding section forming a feeding cone (7), the feeding cone (7) being provided with a plurality of feeding blades (8), the threshing section being provided with a plurality of groups of threshing plate teeth (9) arranged along a spiral line, and the separating section being provided with a plurality of groups of separating plate teeth (10) arranged along a spiral line.

6. The threshing device according to claim 5, characterized in that The threshing plate teeth (9) are flexible threshing plate teeth.

7. The threshing device according to claim 5, characterized in that The feeding blade (8) comprises a fixed blade (801) and an assembly blade (802), wherein the fixed blade (801) is fixed on the feeding cone (7), and the assembly blade (802) is detachably mounted on the fixed blade (801).

8. The threshing device according to claim 7, characterized in that Reinforcing ribs are also provided between the feeding cone (7) and the fixed blade (801).

9. The threshing device according to claim 3, characterized in that The length of the longitudinal flow drum (2) is greater than or equal to 3000 mm and less than or equal to 3400 mm, the length of the acceleration feed roller (3) is greater than or equal to 1100 mm and less than or equal to 1400 mm, and the length of the tangential flow drum (1) is greater than or equal to 1100 mm and less than or equal to 1400 mm.

10. A harvester, characterized in that: The invention comprises a threshing device according to any one of claims 1 to 9.

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