Threshing machine

Abstract

The utility model discloses a threshing machine which comprises a main machine frame, a main threshing cylinder and a track cylinder are arranged on the top of the main machine frame, and a gap of 8-15 mm is formed between the main threshing cylinder and the track cylinder. The track roller is arranged on the driving chain wheel and the driven chain wheel; a roller screen is arranged below the main threshing roller and the crawler belt roller, a middle-layer material collecting bin is arranged below the roller screen, a vibrating screen is arranged below the middle-layer material collecting bin, a threshing bin cover is arranged above the main threshing roller and the crawler belt roller, and a feeding hopper is arranged on one side of the main threshing roller of the threshing bin cover. A discharging baffle is arranged on one side of the crawler belt roller of the threshing bin cover. Through double threshing and an optimized separation process, the threshing efficiency and the crop processing speed are remarkably improved. Due to the improved separation and deslagging mechanism, the blockage phenomenon is effectively reduced, and the continuous operation of the machine is guaranteed. The energy-saving corn thresher is more energy-saving in the aspects of threshing, separating, deslagging and cleaning, and is favorable for improving the crop yield and the working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a thresher. Background Art

[0002] Threshers currently on the market typically consist of several core components: a feeding mechanism, a threshing mechanism, a vibrating conveyor, a cleaning mechanism (often including air separation), and a power system. These components work together in a carefully designed combination to achieve efficient crop threshing.

[0003] However, existing threshers can encounter challenges when handling long-stemmed or multi-stemmed crops, such as in full-feed threshing operations. Specifically, when a large number of stalks enter the thresher chamber simultaneously, separating the crop from the stalks and stems can become difficult. This congestion not only reduces threshing efficiency but can also slow down the discharge of residue, increasing the risk of machine blockage. Utility Model Content

[0004] The purpose of the present invention is to provide a thresher in order to solve the above problems. The present invention improves the performance and reliability of the thresher when processing specific crops by arranging a main threshing drum and a crawler drum, ensures the effective separation of crops and stems, improves the discharge efficiency of residues, and thus enhances the overall threshing effect.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A thresher includes a main frame;

[0007] A main threshing drum and a crawler drum are provided on the top of the main frame, and a gap of 8-15 mm is provided between the main threshing drum and the crawler drum; the crawler drum is provided on the driving sprocket and the driven sprocket;

[0008] A first transmission wheel is provided on one side of the main threshing drum, a second transmission wheel is provided on one side of the driving sprocket, and a fifth transmission wheel is provided on the other side. A third transmission wheel is provided on the lower part of the main frame. The first transmission wheel, the second transmission wheel, and the third transmission wheel are arranged on the same side of the main frame and are connected to the output wheel of the motor through a belt.

[0009] A drum screen is provided below the main threshing drum and the crawler drum, an intermediate layer aggregate bin is provided below the drum screen, a vibrating screen is provided below the intermediate layer aggregate bin, the vibrating screen includes a first screen and a second screen, the first screen and the second screen are arranged on a vibrating frame, an eccentric wheel is provided at the bottom of the vibrating frame, the eccentric wheel is connected to the fourth transmission wheel through a connecting rod, and the fourth transmission wheel is connected to the fifth transmission wheel on the other side of the driving sprocket through a belt;

[0010] A V-shaped collecting hopper is provided below the vibrating screen, a feeder is provided on one side of the collecting hopper, a feeding auger is provided in the collecting hopper, the inlet of the feeder is communicated with the outlet of the feeding auger, the rotating rod of the feeding auger is connected to the third transmission wheel, a separator is provided at the end of the feeder, and a discharge port is provided at the bottom of the separator; a fan is provided outside the feeder, the rotating shaft of the fan is connected to the rotating rod of the feeding auger, the fan is connected to the separator through a bent pipe, and a slag discharge port is provided on the fan;

[0011] A threshing bin cover is provided above the main threshing drum and the crawler drum, a feed hopper is provided on one side of the main threshing drum of the threshing bin cover, and a discharge baffle is provided on one side of the crawler drum of the threshing bin cover.

[0012] A further solution is that a plurality of threshing racks are symmetrically provided on the main threshing drum.

[0013] A further solution is that the angle between the line connecting the central axes of the driving sprocket and the driven sprocket of the track roller and the horizontal plane is 0°-30°.

[0014] A further solution is that the track roller is provided with a plurality of roller teeth, and the roller teeth are columnar, strip-shaped, prism-shaped or pyramid-shaped.

[0015] A further solution is that a plurality of inverted V-shaped roller dome teeth are provided on the crawler roller, and one side of the roller dome teeth faces the direction of the feed hopper.

[0016] A further solution is that at least one side of the drum dome teeth is provided with a concave-convex or wavy texture.

[0017] A further solution is that the angle between the first screen and the second screen is 130°-145°.

[0018] A further solution is that a detachable adjustment plate is provided on one side of the first screen and the second screen.

[0019] A further solution is that a walking wheel is provided on one side of the bottom of the main frame, and a support frame is provided on the other side;

[0020] The beneficial effects of the present invention are:

[0021] Improved efficiency: Double threshing and optimized separation processes significantly increase threshing efficiency and crop processing speed.

[0022] Reduce clogging: Improved separation and slag discharge mechanism effectively reduces clogging and ensures continuous operation of the machine.

[0023] Reduced energy consumption: This machine is more energy-efficient in threshing, separation, slagging and cleaning, helping to increase crop yields and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions 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.

[0025] Figure 1 It is a side view of the utility model.

[0026] Figure 2 The three-dimensional structure of the utility model Figure 1 .

[0027] Figure 3 The three-dimensional structure of the utility model Figure 2 .

[0028] Figure 4 The three-dimensional structure of the utility model Figure 3 .

[0029] Figure 5 This is the structural diagram of the vibrating screen of this utility model.

[0030] Figure 6 This is a schematic diagram of the location of the middle layer aggregate bin of the utility model. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0032] In any embodiment, Figure 1-6 As shown, a thresher of the present invention comprises a main frame 1, wherein one side of the bottom of the main frame 1 is provided with a walking wheel 11, and the other side is provided with a supporting frame 12, so as to facilitate the movement and stability of the machine.

[0033] A main threshing drum 2 and a crawler drum 3 are mounted on top of the main frame 1. A gap of 8-15 mm is provided between the main threshing drum 2 and the crawler drum 3. The crawler drum 3 is mounted on a driving sprocket 31 and a driven sprocket 32. The angle between the line connecting the central axes of the driving sprocket 31 and the driven sprocket 32 ​​of the crawler drum 3 and the horizontal plane is 0°-30°. The tilt angle can be adjusted according to the characteristics of the crops to be threshed.

[0034] The main threshing drum 2 is provided with a first transmission wheel 21 on one side, a second transmission wheel 33 on one side of the driving sprocket 31, and a fifth transmission wheel 35 on the other side. The lower part of the main frame 1 is provided with a third transmission wheel 34. The first transmission wheel 21, the second transmission wheel 33, and the third transmission wheel 34 are arranged on the same side of the main frame 1 and are connected to the output wheel ( Figure 2 Not shown, located Figure 4 (the belt bend) connection;

[0035] A drum screen 4 is provided below the main threshing drum 2 and the crawler drum 3; an intermediate layer collecting bin 41 is provided below the drum screen 4, and a vibrating screen 5 is provided below the intermediate layer collecting bin 41; the intermediate layer collecting bin 41 is used to collect the material screened from the drum screen 4, so that it falls along the bin wall onto the vibrating screen 5 to prevent the material from being scattered outside the vibrating screen 5.

[0036] The vibrating screen 5 includes a first screen 51 and a second screen 52, which are arranged on a vibrating frame 53. An eccentric wheel 54 is provided at the bottom of the vibrating frame 53. The eccentric wheel 54 is connected to a fourth transmission wheel 55 via a connecting rod. The fourth transmission wheel 55 is connected to the fifth transmission wheel 35 on the other side of the driving sprocket 31 via a belt.

[0037] A V-shaped collecting hopper 6 is provided below the vibrating screen 5. A feeder 61 is provided on one side of the collecting hopper 6. A feeding auger 62 is provided in the collecting hopper 6. The inlet of the feeder 61 is connected to the outlet of the feeding auger 62. The rotating rod of the feeding auger 62 is connected to the third transmission wheel 34. A separator 65 is provided at the end of the feeder 61. A discharge port 66 is provided at the bottom of the separator 65. A fan 63 is provided on the outside of the feeder 61. The rotating shaft of the fan 63 is connected to the rotating rod of the feeding auger 62. The fan 63 is connected to the separator 65 through a bend pipe. A slag discharge port 64 is provided on the fan 63.

[0038] The installation of a drum screen, intermediate collection bin, and vibrating screen further optimizes the separation process. The eccentric wheel ensures more stable and efficient vibrating screen movement, thereby improving screening accuracy and efficiency. The V-shaped collection hopper not only facilitates the collection and concentration of materials, but also, when combined with a feeder and fan, further cleans and separates the crops.

[0039] A threshing bin cover 13 is provided above the main threshing drum 2 and the crawler drum 3 , a feed hopper 14 is provided on one side of the main threshing drum 2 of the threshing bin cover 13 , and a discharge baffle 15 is provided on one side of the crawler drum 3 of the threshing bin cover 13 .

[0040] The main threshing drum 2 is symmetrically provided with a plurality of threshing racks 22; the threshing racks 22 are evenly distributed on the surface of the main threshing drum to improve threshing efficiency.

[0041] The crawler roller 3 is provided with a plurality of roller teeth, each of which is in the shape of a column, strip, prism, or pyramid. The crawler roller 3 is provided with a plurality of inverted V-shaped roller dome teeth, one side of which faces the feed hopper. At least one side of the roller dome teeth is provided with a concave-convex or wavy texture. The roller teeth and the roller dome teeth enhance gripping ability and threshing force. In particular, the special shape of the dome teeth and the addition of the concave-convex or wavy texture significantly enhance the threshing and separation effects, improving overall threshing efficiency.

[0042] The angle between the first screen 51 and the second screen 52 is 130°-145°. The screen angle (130°-145°) is used to optimize the screening path and improve screening accuracy and efficiency.

[0043] A detachable adjustment plate is provided on one side of the first screen 51 and the second screen 52 .

[0044] The utility model has the following features:

[0045] 1. Double threshing system

[0046] First threshing: Crops are fed from the feed hopper and initially threshed by the main threshing drum and threshing screen to initially separate the crops from the stems.

[0047] Secondary threshing: After the initial separation, the stems and the entrained crops enter the crawler drum for secondary threshing to ensure a more thorough separation.

[0048] 2. Triangular vibrating screen optimization

[0049] The triangular vibrating screen is used to further separate the crops from the slag shells, effectively improving the separation accuracy.

[0050] 3. Introduction of air separation components

[0051] The crops discharged from the triangular vibrating screen are then passed through the air separation components to achieve more thorough cleaning and separation.

[0052] 4. Improvement of rod and stem separation and slag discharge

[0053] The optimized threshing bin reduces the amount of crops and stems mixed, has a lighter load, and allows for faster separation and slag discharge.

[0054] 5. Powertrain innovation

[0055] The precise layout of the power transmission wheels enables efficient power transmission, ensuring that each component reaches the required speed and improving overall work efficiency.

[0056] 6. The drum teeth and drum dome teeth can enhance the gripping ability and threshing force. In particular, the special shape of the dome teeth and the addition of concave-convex or wavy textures significantly enhance the threshing and separation effects and improve the overall threshing efficiency.

[0057] The workflow of this utility model is as follows:

[0058] The crops are fed through the feed hopper and first pass through the main threshing drum and threshing screen for preliminary threshing and separation.

[0059] After the initial separation, the stems and the entrained crops enter the crawler drum and are separated again by the threshing screen. Finally, the stems are discharged from the output end of the crawler drum.

[0060] The crops and slag shells discharged from the threshing screen are collected by the middle collecting bin and enter the vibrating screen for further separation.

[0061] The crops separated by the vibrating screen are sent to the air separation component through the collecting hopper and conveying components to complete the cleaning and separation.

[0062] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way if there is no contradiction. In order to avoid unnecessary repetition, the present invention will no longer describe various possible combinations separately. In addition, the various different embodiments of the present invention can also be arbitrarily combined. As long as they do not violate the idea of ​​the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A thresher, characterized in that: Including main frame; A main threshing drum and a crawler drum are provided on the top of the main frame, and a gap of 8-15 mm is provided between the main threshing drum and the crawler drum; the crawler drum is provided on the driving sprocket and the driven sprocket; A first transmission wheel is provided on one side of the main threshing drum, a second transmission wheel is provided on one side of the driving sprocket, and a fifth transmission wheel is provided on the other side. A third transmission wheel is provided on the lower part of the main frame. The first transmission wheel, the second transmission wheel, and the third transmission wheel are arranged on the same side of the main frame and are connected to the output wheel of the motor through a belt. A drum screen is provided below the main threshing drum and the crawler drum, an intermediate layer aggregate bin is provided below the drum screen, a vibrating screen is provided below the intermediate layer aggregate bin, the vibrating screen includes a first screen and a second screen, the first screen and the second screen are arranged on a vibrating frame, an eccentric wheel is provided at the bottom of the vibrating frame, the eccentric wheel is connected to the fourth transmission wheel through a connecting rod, and the fourth transmission wheel is connected to the fifth transmission wheel on the other side of the driving sprocket through a belt; A V-shaped collecting hopper is provided below the vibrating screen, a feeder is provided on one side of the collecting hopper, a feeding auger is provided in the collecting hopper, the inlet of the feeder is communicated with the outlet of the feeding auger, the rotating rod of the feeding auger is connected to the third transmission wheel, a separator is provided at the end of the feeder, and a discharge port is provided at the bottom of the separator; a fan is provided outside the feeder, the rotating shaft of the fan is connected to the rotating rod of the feeding auger, the fan is connected to the separator through a bent pipe, and a slag discharge port is provided on the fan; A threshing bin cover is provided above the main threshing drum and the crawler drum, a feed hopper is provided on one side of the main threshing drum of the threshing bin cover, and a discharge baffle is provided on one side of the crawler drum of the threshing bin cover.

2. A thresher according to claim 1, characterized in that, A plurality of threshing racks are symmetrically arranged on the main threshing drum.

3. A thresher according to claim 1, characterized in that, The angle between the line connecting the central axes of the driving sprocket and the driven sprocket of the track roller and the horizontal plane is 0°-30°.

4. A thresher according to claim 1, characterized in that, The track roller is provided with a plurality of roller teeth, and the roller teeth are column-shaped, strip-shaped, prism-shaped or pyramid-shaped.

5. A thresher according to claim 1, characterized in that: The crawler roller is provided with a plurality of inverted V-shaped roller dome teeth, and one side of the roller dome teeth faces the direction of the feed hopper.

6. A thresher according to claim 5, characterized in that: At least one side of the drum dome teeth is provided with a concave-convex or wavy texture.

7. A thresher according to claim 1, characterized in that: The angle between the first screen and the second screen is 130°-145°.

8. A thresher according to claim 1, characterized in that: A detachable adjustment plate is provided on one side of the first screen and the second screen.

9. A thresher according to claim 1, characterized in that: One side of the bottom of the main frame is provided with a walking wheel, and the other side is provided with a supporting frame.

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