Threshing machine

Abstract

The threshing machine comprises a main machine frame, a main threshing roller and a crawler belt roller are arranged at the top of the main machine frame, and a gap of 8-15 mm is formed between the main threshing roller and the crawler belt roller; 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 corn thresher is more energy-saving in the aspects of threshing, separating, deslagging and cleaning, and is beneficial to improving the crop yield and the working efficiency.

Description

Technical Field

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

[0002] The threshers currently on the market are usually composed of the following core components: feeding device, threshing device, vibrating conveying device, cleaning device (usually including wind separation), and power system. These components work together in a carefully designed combination to achieve efficient threshing of crops.

[0003] However, existing threshers may encounter some challenges when handling long-stemmed or multi-stemmed crops, such as full-feed threshing operations. Specifically, when a large number of stems enter the thresher chamber at the same time, it may make the separation process of crops from stems and stalks difficult. This congestion not only reduces threshing efficiency, but may also cause the discharge speed of residue to slow down, thereby increasing the risk of machine blockage. Summary of the invention

[0004] The purpose of the present invention is to provide a thresher to solve the above-mentioned 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 present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A thresher comprises a main frame;

[0007] A main threshing drum and a crawler drum are arranged on the top of the main frame, and a gap of 8-15 mm is arranged between the main threshing drum and the crawler drum; the crawler drum is arranged 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, and a third transmission wheel is provided at 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 material collection bin is provided below the drum screen, a vibrating screen is provided below the intermediate material collection bin, the vibrating screen comprises 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 with 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 with the rotating rod of the feeding auger, the fan is connected with the separator through a bent pipe, and a slag discharge port is provided on the fan;

[0011] A threshing bin cover is arranged above the main threshing drum and the crawler drum, a feeding hopper is arranged on one side of the main threshing drum of the threshing bin cover, and a discharging baffle is arranged 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 arranged 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 a plurality of roller teeth are provided on the track roller, 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 supporting 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 improve 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: The machine is more energy-efficient in threshing, separation, slag discharge and cleaning, which helps to increase crop yield 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0025] Figure 1 It is a side view of the present invention.

[0026] Figure 2 The three-dimensional structure of the present invention Figure 1 .

[0027] Figure 3 The three-dimensional structure of the present invention Figure 2 .

[0028] Figure 4 The three-dimensional structure of the present invention Figure 3 .

[0029] Figure 5 This is a structural diagram of the vibrating screen of the present invention.

[0030] Figure 6 This is a schematic diagram of the position of the middle layer aggregate bin of the present invention. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0032] In any embodiment, if Figure 1-6 As shown, a thresher of the present invention comprises a main frame 1, 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 arranged on the top of the main frame 1, and a gap of 8-15 mm is arranged between the main threshing drum 2 and the crawler drum 3; the crawler drum 3 is arranged on a driving sprocket 31 and a driven sprocket 32; the angle between the connecting line of the central axis of the driving sprocket 31 and the driven sprocket 32 ​​of the crawler drum 3 and the horizontal plane is 0°-30°. The inclination angle can be adjusted according to the characteristics of different crops to be threshed.

[0034] The main threshing drum 2 is provided with a first transmission wheel 21 on one side, the driving sprocket 31 is provided with a second transmission wheel 33 on one side, 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) is connected;

[0035] A drum screen 4 is provided below the main threshing drum 2 and the track 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 screen of 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 arranged at the bottom of the vibrating frame 53, and the eccentric wheel 54 is connected to a fourth transmission wheel 55 through a connecting rod, and the fourth transmission wheel 55 is connected to a fifth transmission wheel 35 on the other side of the driving sprocket 31 through 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 communicated with 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, and 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 curved pipe, and a slag discharge port 64 is provided on the fan 63;

[0038] The setting of drum screen, middle layer collection bin and vibrating screen further optimizes the separation process. The eccentric wheel makes the movement of the vibrating screen more stable and effective, thus improving the screening accuracy and efficiency. The design of V-shaped collection hopper is not only convenient for the concentration and collection of materials, but also can further clean and separate crops with the use of feeder and fan.

[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 the threshing efficiency.

[0041] The crawler roller 3 is provided with a plurality of roller teeth, and the roller teeth are columnar, strip-shaped, prism-shaped or pyramid-shaped. The crawler roller 3 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. 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 can enhance the gripping ability and threshing force, especially the special shape of the dome teeth, and the addition of the concave-convex or wavy texture, which significantly enhances the threshing and separation effects and improves the 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 the 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 present invention has the following characteristics:

[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 wind selection components

[0051] The crops discharged from the triangular vibrating screen are then passed through the wind selection component 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 is quicker to separate and discharge.

[0054] 5. Powertrain innovation

[0055] Through the precise layout of the power transmission wheels, efficient power transmission is achieved, 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, especially the special shape of the dome teeth and the addition of concave-convex or wavy textures, which significantly enhance the threshing and separation effects and improve the overall threshing efficiency.

[0057] The workflow of the present invention 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] The stems and crops after preliminary separation enter the track roller and are separated from the threshing screen again. Finally, the stems are discharged from the output end of the track roller.

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

[0061] The crops separated by the vibrating screen are sent to the wind 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 thereto. 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 manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further explain various possible combinations. In addition, the various different embodiments of the present invention can also be combined arbitrarily, 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 thresher, It is characterized in that Including main frame; A main threshing drum and a crawler drum are arranged on the top of the main frame, and a gap of 8-15 mm is arranged between the main threshing drum and the crawler drum; the crawler drum is arranged 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, and a third transmission wheel is provided at 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 material collection bin is provided below the drum screen, a vibrating screen is provided below the intermediate material collection bin, the vibrating screen comprises 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 with 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 with the rotating rod of the feeding auger, the fan is connected with the separator through a bent pipe, and a slag discharge port is provided on the fan; A threshing bin cover is arranged above the main threshing drum and the crawler drum, a feeding hopper is arranged on one side of the main threshing drum of the threshing bin cover, and a discharging baffle is arranged on one side of the crawler drum of the threshing bin cover.

2. A thresher as claimed in claim 1, It is characterized in that A plurality of threshing racks are symmetrically arranged on the main threshing drum.

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

4. A thresher as claimed in claim 1, It is characterized in 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.

5. A thresher as claimed in claim 1, It is 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 as claimed in claim 5, It is characterized in that At least one side of the drum dome teeth is provided with a concave-convex or wavy texture.

7. A thresher as claimed in claim 1, It is characterized in that The angle between the first screen and the second screen is 130°-145°.

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

9. A thresher as claimed in claim 1, It is 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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