A slag removal system for an agricultural machine

Abstract

The utility model discloses an agricultural machinery's deslagging system relates to agricultural machinery technical field, and it is including: the baffle slag net board, cyclone prefilter, deslagging fan and air cleaner, the baffle slag net board is provided with a plurality of net holes for ventilation, and the baffle slag net board is installed in radiator frame, the cyclone prefilter is communicated with the air inlet of setting up on radiator frame, and the cyclone prefilter is used for filtering the dust in the air, and the cyclone prefilter is provided with the branch pipe of discharging residue, the deslagging fan is communicated with the branch pipe of discharging residue, and is used for discharging the dust of cyclone prefilter filtering, the air cleaner is installed to engine air inlet, and it is communicated with cyclone prefilter, so setting, can promote the filtration filter efficiency, satisfy the engine demand, can better protect the engine, guarantees the engine service life and performance.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery equipment technology, and in particular to a slag removal system for agricultural machinery. Background Technology

[0002] Agricultural machinery, especially crop harvesting machinery such as cotton harvesters and combine harvesters, operates in extremely harsh environments. Because they directly handle crop plants, they generate large amounts of complex pollutants on-site, consisting of plant debris, dust, lint, and fine residue. These particulate matter, propelled by the high-speed airflow of the machinery, permeates the surrounding area, posing a severe challenge to critical components, particularly the engine.

[0003] As the core power source of agricultural machinery, the engine has extremely high requirements for the cleanliness of the intake air for its normal operation. If dust, fine particles, and other impurities in the air enter the engine during the intake process, it will directly cause abnormal wear of precision components such as engine cylinders and piston rings, leading to a series of problems such as reduced engine power, increased fuel consumption, and shortened service life. In severe cases, it may even lead to premature engine failure.

[0004] Currently, common agricultural machinery engine intake systems are typically equipped with air filters, with the primary filtration stage mainly responsible for filtering larger particles. However, in special operating conditions such as cotton harvesters with high dust and debris levels, traditional primary filtration solutions often suffer from insufficient filtration efficiency. Large amounts of fine plant fibers mixed with dust (fine debris) easily penetrate the primary filtration unit, quickly clogging the main filter element. This not only increases the frequency and cost of maintenance but, more importantly, fails to provide continuous and effective protection for the engine, making it difficult to meet the engine's long-term stable requirements for intake air cleanliness.

[0005] Therefore, improving filtration efficiency to meet engine requirements, better protect the engine, and ensure its lifespan and performance are technical problems that need to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a slag removal system for agricultural machinery that improves filtration efficiency to meet engine requirements. This better protects the engine and ensures its lifespan and performance.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A slag removal system for agricultural machinery, comprising:

[0009] The slag-blocking mesh plate has several mesh holes for ventilation and is installed on the radiator frame.

[0010] The cyclone pre-filter is connected to the air inlet on the radiator frame. The cyclone pre-filter is used to filter dust in the air. The cyclone pre-filter is equipped with a slag discharge branch pipe.

[0011] The slag removal fan is connected to the slag discharge branch pipe and is used to discharge the dust filtered by the cyclone pre-filter.

[0012] An air filter is installed at the engine intake and is connected to a cyclone pre-filter.

[0013] In one possible implementation, a bidirectional cooling fan is also included, which is disposed on the side of the radiator frame away from the slag-blocking mesh plate.

[0014] In one possible implementation, the cyclone pre-filter includes:

[0015] The main air inlet cylinder has its first end connected to the air inlet via a first pipe, and the slag discharge branch pipe is vertically connected to the second end of the main air inlet cylinder.

[0016] The connecting column is a closed structure and is located at the center of the first end of the main air inlet tube. Several spiral guide blades are provided between the outer periphery of the connecting column and the inner wall of the first end of the main air inlet tube.

[0017] The air outlet duct is connected to the second end of the main air inlet duct, and is connected to the air filter through the second pipe.

[0018] In one possible implementation, the end of the connecting column near the first pipe has a smooth arc surface that protrudes toward the first pipe.

[0019] In one possible implementation, the length of the connecting column is greater than the maximum width of the helical guide vane in its axial direction.

[0020] In one possible implementation, the diameter of the air outlet pipe is smaller than the diameter of the main air inlet cylinder, and the air outlet pipe passes through the second end of the main air inlet cylinder, with the air outlet pipe and the main air inlet cylinder being coaxially arranged.

[0021] The distance between the end of the air outlet pipe facing the connecting column and the second end of the main air inlet cylinder is greater than the distance between the slag discharge branch pipe and the second end of the main air inlet cylinder.

[0022] In one possible implementation, the slag-blocking mesh has a wavy structure, which includes a first wave peak and a second wave peak that are spaced apart from each other. The width of the first wave peak is smaller than the width of the second wave peak, and the corners of the first wave peak and the second wave peak are both provided with rounded corners.

[0023] In one possible implementation, the mesh openings are evenly distributed on the slag-blocking mesh plate, and the mesh opening diameter is 1.5 mm.

[0024] In one possible implementation, the second peak is located on the side of the slag-blocking screen plate closer to the air inlet, and the first peak is located on the side of the slag-blocking screen plate away from the air inlet.

[0025] In one possible implementation, the slag removal fan is connected to the slag discharge branch pipe through a third pipe, and the third pipe is a rubber pipe with a smooth inner wall. The power source of the slag removal fan is an electric motor.

[0026] Compared to the aforementioned background technology, the present invention provides a slag removal system for agricultural machinery, comprising: a slag-blocking mesh plate, a cyclone pre-filter, a slag removal fan, and an air filter; the slag-blocking mesh plate is provided with a plurality of mesh holes for ventilation and is installed on the radiator frame; the cyclone pre-filter is connected to an air inlet provided on the radiator frame and is used to filter dust in the air passing through it, and the cyclone pre-filter is provided with a slag discharge branch pipe; the slag removal fan is connected to the slag discharge branch pipe and is used to discharge the dust filtered by the cyclone pre-filter; the air filter is installed at the engine air inlet and is connected to the cyclone pre-filter.

[0027] Specifically, the radiator is installed inside the radiator frame, and a slag baffle is installed on the front side of the radiator. The air inlet is located on the side of the radiator frame, between the slag baffle and the radiator. This allows the air to be coarsely filtered through the mesh of the slag baffle. The coarsely filtered air then enters the cyclone pre-filter through the air inlet, where it undergoes further dust removal and filtration. The dust filtered out here is discharged from the slag discharge branch pipe by the slag removal fan. The air filtered by the cyclone pre-filter then re-enters the air filter for final filtration, and the filtered clean air is then introduced into the engine. This design improves the air filtration efficiency and effect, meets the engine's requirements, better protects the engine, and ensures its service life and performance. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 A schematic diagram of the slag removal system of agricultural machinery provided in an embodiment of this utility model;

[0030] Figure 2 This is a schematic cross-sectional view of the slag-blocking mesh plate provided in an embodiment of the present utility model;

[0031] Figure 3This is a schematic diagram of the slag-blocking mesh plate provided in an embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of the cyclone pre-filter structure provided in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the internal structure of the cyclone pre-filter provided in an embodiment of the present invention;

[0034] Figure 6 This is a front view of the cyclone pre-filter provided in an embodiment of the present invention;

[0035] Figure 7 This is a cross-sectional view of the cyclone pre-filter provided in an embodiment of the present invention.

[0036] in:

[0037] 01-Radiator frame, 011-Air inlet;

[0038] 100 - Slag-blocking screen, 110 - Mesh size, 120 - First wave peak, 130 - Second wave peak;

[0039] 200-Cyclone pre-filter, 210-Inlet main cylinder, 211-Slag discharge branch pipe, 220-Connecting column, 230-Helical guide vane, 240-Outlet pipe;

[0040] 300 - Slag removal fan; 310 - Electric motor;

[0041] 400-Air Filter;

[0042] 500- Cooling fan;

[0043] 610 - First pipe, 620 - Second pipe, 630 - Third pipe. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0047] The purpose of this invention is to provide a slag removal system for agricultural machinery that improves filtration efficiency to meet engine requirements. This better protects the engine and ensures its lifespan and performance.

[0048] To achieve the above objectives, the present invention provides the following technical solution:

[0049] Please see Figures 1 to 7 This embodiment provides a slag removal system for agricultural machinery, including: a slag-blocking mesh plate 100, a cyclone pre-filter 200, a slag removal fan 300, and an air filter 400; the slag-blocking mesh plate 100 is provided with a plurality of mesh holes 110 for ventilation, and the slag-blocking mesh plate 100 is installed on a radiator frame 01; the cyclone pre-filter 200 is connected to an air inlet 011 provided on the radiator frame 01, and the cyclone pre-filter 200 is used to filter dust in the air, and the cyclone pre-filter 200 is provided with a slag discharge branch pipe 211; the slag removal fan 300 is connected to the slag discharge branch pipe 211, and is used to discharge the dust filtered by the cyclone pre-filter 200; the air filter 400 is installed at the engine air inlet and is connected to the cyclone pre-filter 200.

[0050] Specifically, the radiator frame 01 is a square frame structure. The radiator (not shown in the figure) is installed inside the radiator frame 01. The slag baffle 100 is installed on the front end face of the radiator frame 01, that is, the slag baffle 100 is located on the front side of the radiator. At the same time, the air inlet 011 is set on the side plate of the radiator frame 01 and is located between the slag baffle 100 and the radiator. The size and shape of the air inlet 011 can be adjusted according to the actual situation.

[0051] In this way, when the engine draws in air through the air inlet 011, the air can be coarsely filtered through the mesh 110 of the slag baffle plate 100. The coarsely filtered air then enters the cyclone pre-filter 200 through the air inlet, where it undergoes further dust removal and filtration. The dust filtered out here will be discharged from the slag discharge branch pipe 211 by the slag removal fan 300. The air filtered by the cyclone pre-filter 200 will then re-enter the air filter 400 for final filtration, and the filtered clean air will be introduced into the engine. This setup can improve the air filtration efficiency and effect, meet the engine's needs, better protect the engine, and ensure the engine's service life and performance.

[0052] In one possible implementation, a bidirectional cooling fan 500 is also included, which is disposed on the side of the radiator frame 01 away from the slag-blocking mesh plate 100.

[0053] Specifically, such as Figure 1 As shown, in this embodiment, the bidirectional cooling fan 500 is installed on the inner side of the radiator, that is, the side of the radiator away from the ash baffle plate 100. When the cooling fan 500 is working normally, it can draw airflow from the outside of the ash baffle plate 100 toward the radiator to cool the engine. That is, the airflow direction is from the ash baffle plate 100 to the cooling fan 500. However, when a lot of impurities accumulate on the surface of the ash baffle plate 100, it can send a feedback signal to the cooling fan 500 to make it rotate in the opposite direction, thereby changing the airflow direction and making the airflow flow in the opposite direction. The airflow will blow from the cooling fan 500 to the ash baffle plate 100. At this time, the impurities on the ash baffle plate 100 can be removed and blown away to avoid affecting the subsequent air intake.

[0054] In one possible implementation, the cyclone pre-filter 200 includes: an air inlet main cylinder 210, a connecting column 220, and an air outlet pipe 240; the first end of the air inlet main cylinder 210 is connected to the air inlet 011 through a first pipe 610, and the slag discharge branch pipe 211 is vertically connected to the second end of the air inlet main cylinder 210; the connecting column 220 is a closed structure and is located at the center of the first end of the air inlet main cylinder 210, and a plurality of spiral guide blades 230 are provided between the outer periphery of the connecting column 220 and the inner wall of the first end of the air inlet main cylinder 210; the air outlet pipe 240 is connected to the second end of the air inlet main cylinder 210, and the air outlet pipe 240 is connected to the air filter 400 through a second pipe 620.

[0055] Specifically, such as Figures 4 to 7As shown, the cyclone pre-filter 200 has an air inlet at the first end and an air outlet at the second end. A slag discharge branch pipe 211 is provided on the side wall near the second air outlet end. From the installation perspective, the slag discharge port is vertically downward. When dust-laden gas enters the cyclone pre-filter 200 at a certain speed through the air inlet at the first end, it forms a rotational motion after passing through the spiral guide vanes 230. During this period, the airflow forms an outward vortex from the outside to the inside. Centrifugal force throws dust particles with a density much greater than that of the gas toward the wall. Once the dust particles come into contact with the wall, they lose inertial force and fall along the wall by the momentum of the inlet velocity and their own gravity, entering the slag discharge branch pipe 211 located directly below.

[0056] In one possible implementation, the end of the connecting column 220 near the first pipe 610 is a smooth arc surface that protrudes toward the first pipe 610.

[0057] Understandably, the right end of the connecting column 220 is a smooth arc surface. In this way, the dusty air guided by the first pipe 610 will enter the spiral guide vane 230 under the guidance of the arc surface, and then form a rotational motion under its guidance, and use centrifugal force to throw the dust out.

[0058] Furthermore, the length of the connecting column 220 is greater than the maximum width of the helical guide vane 230 in its axial direction.

[0059] like Figure 7 As shown, the length of b is preferably 20mm-23mm. This setting can increase the flow of dust, allowing more dust to fall into the slag discharge branch pipe 211. In other words, by appropriately increasing the length of b, the movement path of air in the annular channel formed between the connecting column 220 and the inner wall of the air inlet main cylinder 210 can be increased, which can ensure that the air rotation time is increased, thereby ensuring that more dust is thrown out under the action of centrifugal force.

[0060] In one possible implementation, the diameter of the air outlet pipe 240 is smaller than the diameter of the main air inlet cylinder 210, and the air outlet pipe 240 passes through the second end of the main air inlet cylinder 210. The air outlet pipe 240 and the main air inlet cylinder 210 are coaxially arranged. The distance between the end of the air outlet pipe 240 facing the connecting column 220 and the second end of the main air inlet cylinder 210 is greater than the distance between the slag discharge branch pipe 211 and the second end of the main air inlet cylinder 210.

[0061] like Figure 7 As shown, the outlet pipe 240 and the main inlet pipe 210 form a stepped cylindrical structure, with the right end extending into the main inlet pipe 210 and protruding a certain distance beyond the rightmost end of the slag discharge branch pipe 211. Figure 7First, the insertion design of the exhaust duct 240 increases the cleaning efficiency of the cyclone pre-filter 200. When the air begins to rotate under the guidance of the spiral guide vanes 230, the dust will be thrown outward under the action of centrifugal force. Due to the insertion design of the exhaust duct 240, it forms an annular groove with the inner wall of the main air inlet duct 210. This annular groove can effectively accommodate the thrown dust and prevent it from entering the exhaust duct 240. Second, the extension length of the exhaust duct 240 exceeds the distance of the rightmost end of the slag discharge branch pipe 211, which can prevent the dust that has fallen into the slag discharge branch pipe 211 from being sucked away by the engine intake, thereby achieving the effect of improving filtration efficiency. In addition, a rounded corner can be set at the connection between the slag discharge branch pipe 211 and the main air inlet duct 210, which makes it easier for the dust in the main air inlet duct 210 to enter the slag discharge branch pipe 211.

[0062] In one possible implementation, the slag-blocking mesh 100 has a wave-shaped structure, which includes a first wave peak 120 and a second wave peak 130 spaced apart from each other. The width of the first wave peak 120 is smaller than the width of the second wave peak 130, and the corners of the first wave peak 120 and the second wave peak 130 are both provided with rounded corners.

[0063] Specifically, such as Figures 2 to 3 As shown, the cross-sectional shape of the slag-blocking screen plate 100 is wavy, which includes a first wave peak 120 and a second wave peak 130 protruding from both sides. With this configuration, the surface area of ​​the slag-blocking screen plate 100 can be increased when the opening area of ​​the radiator frame 01 is fixed. Since a number of mesh holes 110 are provided on its surface, more impurities can accumulate on the surface of the slag-blocking screen plate 100 without affecting its use. That is, the impurities it filters can accumulate in each trough, which can reduce the number of times it needs to be cleaned during the filtration process.

[0064] Meanwhile, to ensure that impurities can accumulate smoothly to the troughs, rounded corners are provided at the corners of each peak. In addition, it is understood that impurities will accumulate on the outer side of the slag-blocking screen 100 during use. Therefore, in order to allow the slag-blocking screen 100 to accumulate more impurities without affecting its use, in this embodiment, the width of the first peak 120 is smaller than the width of the second peak 130. In this way, more impurities can accumulate in the second peak 130 relative to the first peak 120, which is the trough. This increases the number of times the slag-blocking screen 100 needs to be cleaned.

[0065] In this embodiment, the mesh 110 is evenly distributed on the slag-blocking mesh plate 100, and the diameter of the mesh 110 is preferably 1.5 mm. Of course, the diameter and distribution of the mesh 110 can be adjusted appropriately according to the actual situation, and no specific limitation is made here.

[0066] In one possible implementation, the second peak 130 is located on the inner side of the slag-blocking screen 100 near the air inlet 011, and the first peak 120 is located on the outer side of the slag-blocking screen 100 away from the air inlet 011.

[0067] During operation, airborne debris is adsorbed onto the outer surface of the debris-blocking mesh plate 100 due to the strong airflow suction. The trapezoidal folded shape, i.e., the wave-like structure, increases the air intake area. Under the condition of a certain required flow rate, the airflow velocity and air intake resistance can be reduced, thereby reducing the adsorption of large debris.

[0068] Similarly, in reverse airflow, the trapezoidal folded shape makes it easier to remove adsorbed debris. The trapezoidal design alters the airflow direction in this area, helping to blow away residue from different directions for better removal. The design where dimension d is greater than e is intended to minimize the contact area between residue and the first wave crest 120, while maximizing the width in the d direction to prevent residue from accumulating and getting stuck, making it easier to remove during reverse airflow.

[0069] In one possible implementation, the slag removal fan 300 is connected to the slag discharge branch pipe 211 through a third pipe 630, and the third pipe 630 is a rubber pipe with a smooth inner wall. The power source of the slag removal fan 300 is an electric motor 310.

[0070] In this embodiment, the slag removal fan 300 is driven by an electric motor 310 and has stepless speed regulation. The slag removal fan 300 is a centrifugal fan that generates negative pressure. The cyclone pre-filter 200 is connected to the slag removal fan 300 by a section of rubber tubing with a smooth inner wall, which is used to transfer the dust centrifuged out by the cyclone pre-filter 200. The tubing is kept as short as possible and avoids right-angle bends, and is used to eject the dust centrifuged out by the pre-filter and discharge it from the bottom outlet of the slag removal fan 300. The electric motor 310 drives the slag removal fan 300, which can increase control, adjust the speed according to actual needs, save energy, and reduce engine fuel consumption.

[0071] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0073] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A slag removal system for agricultural machinery, characterized in that, include: A slag-blocking mesh plate (100) is provided with a plurality of mesh holes (110) for ventilation, and the slag-blocking mesh plate (100) is installed on the radiator frame (01). The cyclone pre-filter (200) is connected to the air inlet (011) provided on the radiator frame (01). The cyclone pre-filter (200) is used to filter dust in the air. The cyclone pre-filter (200) is provided with a slag discharge branch pipe (211). The slag removal fan (300) is connected to the slag discharge branch pipe (211) and is used to discharge the dust filtered by the cyclone pre-filter (200); An air filter (400) is installed at the engine intake and is connected to the cyclone pre-filter (200).

2. The slag removal system for agricultural machinery according to claim 1, characterized in that, It also includes a two-way cooling fan (500), which is disposed on the side of the radiator frame (01) away from the slag-blocking mesh plate (100).

3. The slag removal system for agricultural machinery according to claim 1, characterized in that, The cyclone pre-filter (200) includes: The main air inlet cylinder (210) has its first end connected to the air inlet (011) through the first pipe (610), and the slag discharge branch pipe (211) is vertically connected to the second end of the main air inlet cylinder (210); The connecting column (220) is a closed structure and is located at the center of the first end of the main air inlet cylinder (210). Several spiral guide blades (230) are provided between the outer periphery of the connecting column (220) and the inner wall of the first end of the main air inlet cylinder (210). An air outlet duct (240) is connected to the second end of the main air inlet duct (210), and the air outlet duct (240) is connected to the air filter (400) through a second pipe (620).

4. The slag removal system for agricultural machinery according to claim 3, characterized in that, The end of the connecting column (220) near the first pipe (610) is a smooth arc surface that protrudes toward the first pipe (610).

5. The slag removal system for agricultural machinery according to claim 4, characterized in that, The length of the connecting column (220) is greater than the maximum width of the helical guide vane (230) in its axial direction.

6. The slag removal system for agricultural machinery according to claim 4, characterized in that, The diameter of the air outlet pipe (240) is smaller than the diameter of the air inlet main cylinder (210), and the air outlet pipe (240) passes through the second end of the air inlet main cylinder (210). The air outlet pipe (240) and the air inlet main cylinder (210) are coaxially arranged. The distance between the end of the air outlet pipe (240) facing the connecting column (220) and the second end of the main air inlet cylinder (210) is greater than the distance between the slag discharge branch pipe (211) and the second end of the main air inlet cylinder (210).

7. The slag removal system for agricultural machinery according to claim 1, characterized in that, The slag-blocking mesh plate (100) has a wave-shaped structure, which includes a first wave peak (120) and a second wave peak (130) spaced apart from each other. The width of the first wave peak (120) is smaller than the width of the second wave peak (130), and the corners of the first wave peak (120) and the second wave peak (130) are rounded.

8. The slag removal system for agricultural machinery according to claim 1, characterized in that, The mesh (110) is evenly distributed on the slag-blocking mesh plate (100), and the diameter of the mesh (110) is 1.5 mm.

9. The slag removal system for agricultural machinery according to claim 7, characterized in that, The second peak (130) is located on the side of the slag-blocking screen (100) close to the air inlet (011), and the first peak (120) is located on the side of the slag-blocking screen (100) away from the air inlet (011).

10. The slag removal system for agricultural machinery according to claim 1, characterized in that, The slag removal fan (300) is connected to the slag discharge branch pipe (211) through a third pipe (630), and the third pipe (630) is a rubber pipe with a smooth inner wall. The power source of the slag removal fan (300) is an electric motor (310).

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