Prefilter injection dust discharge system for harvester and harvester

Abstract

The utility model provides a prefilter ejection dust discharge system for a harvester and the harvester, and the structure of the prefilter ejection dust discharge system for the harvester comprises an air prefilter which is communicated with an air inlet; the negative pressure impurity removal part is communicated with the tail part of the air prefilter, and the negative pressure impurity removal part can suck impurities in the air prefilter through negative pressure; and the air filter is communicated with the air prefilter, and the air filter is communicated with an air inlet of an engine supercharger of the harvester. According to the prefilter ejection dust discharging system for the harvester and the harvester, the problem that an air prefilter needs to be manually maintained and cleaned by a user, and cleaning is not timely can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery maintenance, and in particular to a pre-filter ejection dust exhaust system for a harvester and a harvester. Background Art

[0002] When harvesting machinery is in operation, a large amount of straw chaff and dust will be generated around the vehicle. To ensure the cleanliness of the engine intake, it is necessary to use an air pre-filter and an air filter to filter it. When the whole machine is in operation, the fresh air filtered by the air pre-filter and the air filter is usually sent to the engine supercharger air intake, and the dust is separated and then collected in the dust box. Finally, when maintaining the whole vehicle, open the dust box and pour out the dust to complete the maintenance.

[0003] However, the current air pre-filter still requires manual maintenance and cleaning by the user. During the busy farming season, most users are unable to perform timely maintenance, resulting in a large number of problems such as increased dust accumulation in the pre-filter, increased intake resistance, and increased engine fuel consumption. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a pre-filter ejection dust exhaust system and a harvester for a harvester, so as to solve the problem that the air pre-filter needs to be manually maintained and cleaned by the user, and there is a situation where the cleaning is not timely.

[0005] According to the first aspect of the utility model, a pre-filter ejection dust exhaust system for a harvester is provided, wherein the pre-filter ejection dust exhaust system for the harvester comprises: an air pre-filter connected to an air inlet; a negative pressure impurity removal part connected to the tail of the air pre-filter, the negative pressure impurity removal part can absorb impurities in the air pre-filter through negative pressure; and an air filter connected to the air pre-filter, the air filter being connected to the air inlet of the engine supercharger of the harvester.

[0006] Preferably, a connecting pipe extending outward is provided at the tail of the air pre-filter, the end of the connecting pipe is a dust exhaust port of the pre-filter, and the negative pressure impurity exhaust part is connected to the dust exhaust port of the pre-filter.

[0007] Preferably, the negative pressure impurity exhaust part comprises: an ejection pipeline connected to the dust exhaust port of the pre-filter; and a dust suction fan connected to the ejection pipeline for providing negative pressure.

[0008] Preferably, the negative pressure debris removal part further includes a debris removal pipeline, the debris removal pipeline is connected to the dust suction fan, and the debris removal pipeline is used to discharge debris in the dust suction fan.

[0009] Preferably, the top end of the ejection pipeline is connected to the dust exhaust port of the pre-filter, the bottom end of the ejection pipeline is connected to the dust suction fan, the top end of the debris exhaust pipeline is connected to the dust suction fan, and the bottom end of the debris exhaust pipeline is connected to the outside of the harvester.

[0010] Preferably, the negative pressure impurity removal unit further includes a fan controller, and the fan controller is used to control the opening and closing of the dust suction fan.

[0011] Preferably, the pre-filter ejection dust removal system for the harvester also includes a first air intake pipeline, one end of which is connected to the tail of the air pre-filter, and the other end of which is connected to the air filter.

[0012] Preferably, the pre-filter ejection dust exhaust system for the harvester also includes a second air intake pipeline, one end of the second air intake pipeline is connected to the air filter, and the other end of the second air intake pipeline is connected to the air intake of the engine supercharger.

[0013] Preferably, a cyclone tube is provided in the air pre-filter.

[0014] According to a second aspect of the utility model, a harvester is provided, wherein the harvester includes the pre-filter ejection dust exhaust system for the harvester as described above.

[0015] The pre-filter ejection dust removal system and harvester for a harvester of the utility model embodiment, wherein the air pre-filter is connected to the air inlet, and is used for preliminary filtering when air with impurities enters. The negative pressure impurity removal unit is connected to the tail of the air pre-filter. The negative pressure impurity removal unit can absorb the impurities in the air pre-filter by negative pressure, so as to save the manual maintenance step. The air filter is connected to the air pre-filter, and the impurity-removed air can enter the air pre-filter for further filtration. The air filter is connected to the engine supercharger air inlet of the harvester, and then outputs the clean air to the engine. This can effectively solve the problem that the air pre-filter needs to be manually maintained and cleaned by the user, and there is a situation where the cleaning is not timely.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of a pre-filter ejection dust exhaust system for a harvester according to the utility model.

[0019] Figure 2 The utility model is a schematic diagram of an air pre-filter of a pre-filter ejection dust exhaust system for a harvester.

[0020] Figure numerals: 1-air pre-filter; 10-connecting pipe; 11-pre-filter dust outlet; 2-negative pressure exhaust part; 21-injection pipeline; 22-dust suction fan; 23-exhaust pipeline; 24-fan controller; 3-air filter; 4-first air intake pipeline; 5-second air intake pipeline. DETAILED DESCRIPTION

[0021] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0022] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0023] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0024] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0025] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0026] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0027] The terms used herein are only used to describe various examples and are not used to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprising" and "having" list the existence of the stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0028] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0029] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0030] like Figure 1 and Figure 2According to a first aspect of the utility model, a pre-filter ejection dust exhaust system for a harvester is provided. The pre-filter ejection dust exhaust system for a harvester comprises an air pre-filter 1, a negative pressure impurity exhaust part 2 and an air filter 3.

[0031] In the following description, reference will be made to Figure 1 and Figure 2 The specific structure of the above-mentioned components of the pre-filter ejection dust exhaust system for the harvester and the connection relationship of the above-mentioned components are specifically described.

[0032] like Figure 1 and Figure 2 As shown, in an embodiment, the air prefilter 1 can be connected to the air inlet, and the air prefilter 1 is used to preliminarily filter the air with impurities. The negative pressure impurity removal part 2 can be connected to the tail of the air prefilter 1. The negative pressure impurity removal part 2 can absorb the impurities in the air prefilter 1 through negative pressure, so as to save the manual maintenance steps. The air filter 3 can be connected to the air prefilter 1, and the impurity-removed air can enter the air prefilter 1 for further filtration. The air filter 3 is connected to the air inlet of the engine supercharger of the harvester, and then outputs the clean air to the engine supercharger.

[0033] Preferably, Figure 1 and Figure 2 As shown, in the embodiment, the air pre-filter 1 can be a tubular structure. The pipe mouth of the air pre-filter 1 can be connected to the air inlet for air intake, and the air entering the air pre-filter 1 carries debris (dust, straw, etc.). The debris in the air pre-filter 1 will gather at the tail of the air pre-filter 1 after preliminary filtration. A negative pressure debris removal part 2 can be provided at the tail of the air pre-filter 1 to suck away the accumulated debris and discharge it.

[0034] Furthermore, preferably, in an embodiment, a cyclone tube may be provided inside the air pre-filter 1, so that the air with debris entering the air pre-filter 1 can rotate in the air pre-filter 1, and finally the debris is gathered at the tail of the air pre-filter 1, so as to be easily sucked and discharged by the negative pressure debris removal part 2.

[0035] Preferably, Figure 1 and Figure 2 As shown, in the embodiment, a connecting pipe 10 extending to the outside may be provided at the tail of the air pre-filter 1. The connecting pipe 10 may extend downwardly at an angle, one end of the connecting pipe 10 may be connected to the inside of the air pre-filter 1, and the other end of the connecting pipe 10 may be a pre-filter dust outlet 11. The negative pressure impurity exhaust part 2 may be connected to the pre-filter dust outlet 11.

[0036] Preferably, Figure 1As shown, in an embodiment, the negative pressure impurity exhaust part 2 may include an ejection pipeline 21 and a dust suction fan 22. The ejection pipeline 21 may be connected to the pre-filter dust exhaust port 11. The dust suction fan 22 may be connected to the ejection pipeline 21 to provide negative pressure. In this way, the impurities accumulated in the tail of the air pre-filter 1 can be sucked away by the dust suction fan 22 through the ejection pipeline 21, thereby eliminating the need for manual maintenance.

[0037] More preferably, Figure 1 As shown, in the embodiment, the negative pressure impurity discharge part 2 may further include an impurity discharge pipeline 23. Specifically, the impurity discharge pipeline 23 may be connected to the dust suction fan 22, and the impurity discharge pipeline 23 is used to discharge the impurities in the dust suction fan 22.

[0038] Further, preferably, Figure 1 As shown, in the embodiment, the ejection pipeline 21 can be arranged vertically. The top of the ejection pipeline 21 can be connected to the pre-filter dust outlet 11, and the bottom of the ejection pipeline 21 is connected to the dust suction fan 22. The debris gathered in the tail of the air pre-filter 1 is easily transported to the dust suction fan 22. The top of the debris discharge pipeline 23 can be connected to the dust suction fan 22, and the bottom of the debris discharge pipeline 23 can be connected to the outside of the harvester, so that the debris in the dust suction fan 22 can be discharged to the outside of the harvester.

[0039] In addition, preferably, Figure 1 As shown, in an embodiment, the negative pressure impurity removal unit 2 may further include a fan controller 24. Specifically, the fan controller 24 may be fixed to the bottom of the air filter 3 by bolts. The fan controller 24 may be conductively connected to the dust suction fan 22 through a line, so that an operator may control the opening and closing of the dust suction fan 22 through the fan controller 24.

[0040] Preferably, Figure 1 As shown, in the embodiment, the pre-filter ejection dust exhaust system for the harvester may further include a first air intake pipeline 4. One end of the first air intake pipeline 4 may be connected to the tail of the air pre-filter 1 through a hoop, and the other end of the first air intake pipeline 4 may be connected to the air inlet of the air filter 3 through a hoop. The air preliminarily filtered in the air pre-filter 1 can be transported to the air filter 3.

[0041] Preferably, Figure 1 As shown, in an embodiment, the pre-filter ejection dust exhaust system for the harvester may further include a second air intake pipeline 5. One end of the second air intake pipeline 5 may be connected to the air filter 3, and the other end of the second air intake pipeline 5 may be connected to the air inlet of the engine supercharger. A filter element may be provided in the air filter 3, and after further filtering by the air filter 3, the clean air can be delivered to the engine supercharger.

[0042] In addition, according to the second aspect of the utility model, a harvester is provided, and the harvester includes the pre-filter ejection dust exhaust system for the harvester as described above.

[0043] During use, when the user drives the harvester to operate normally, external air (carrying debris) enters the intake system of the harvester from the air pre-filter 1, and after rotating through the internal structure of the air pre-filter 1, the debris gathers at the tail of the air pre-filter 1. Then the dust suction fan 22 works to generate negative pressure in the ejection pipeline 21, sucking the debris into the dust suction fan 22, and exhausting it to the outside of the harvester through the exhaust pipeline 23, and finally delivering the clean air to the engine supercharger intake of the harvester.

[0044] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A pre-filter ejection dust exhaust system for a harvester, arranged on the harvester, characterized in that: The pre-filter ejection dust exhaust system for the harvester comprises: An air pre-filter is connected to the air inlet; a negative pressure impurity removal part connected to the rear of the air pre-filter, the negative pressure impurity removal part being able to absorb impurities in the air pre-filter through negative pressure; and An air filter is connected to the air pre-filter, and the air filter is connected to the air inlet of the engine supercharger of the harvester.

2. The pre-filter ejection dust exhaust system for a harvester according to claim 1, characterized in that: The tail of the air pre-filter is provided with a connecting pipe extending to the outside, the end of the connecting pipe is the dust discharge port of the pre-filter, and the negative pressure impurity discharge part is connected to the dust discharge port of the pre-filter.

3. The pre-filter ejection dust exhaust system for a harvester according to claim 2, characterized in that: The negative pressure impurity removal unit comprises: an ejection pipeline connected to the dust exhaust port of the pre-filter; and A dust suction fan is connected to the ejection pipeline and is used for providing negative pressure.

4. The pre-filter ejection dust exhaust system for a harvester according to claim 3, characterized in that: The negative pressure impurity discharge part further includes an impurity discharge pipeline, the impurity discharge pipeline is connected to the dust suction fan, and the impurity discharge pipeline is used to discharge the impurities in the dust suction fan.

5. The pre-filter ejection dust exhaust system for a harvester according to claim 4, characterized in that: The top end of the ejection pipeline is connected to the dust exhaust port of the pre-filter, the bottom end of the ejection pipeline is connected to the dust suction fan, the top end of the debris discharge pipeline is connected to the dust suction fan, and the bottom end of the debris discharge pipeline is connected to the outside of the harvester.

6. The pre-filter ejection dust exhaust system for a harvester according to claim 3, characterized in that: The negative pressure impurity removal unit also includes a fan controller, and the fan controller is used to control the opening and closing of the dust suction fan.

7. The pre-filter ejection dust exhaust system for a harvester according to claim 1, characterized in that: The pre-filter ejection dust removal system for the harvester also includes a first air intake pipeline, one end of which is connected to the tail of the air pre-filter, and the other end of which is connected to the air filter.

8. The pre-filter ejection dust exhaust system for a harvester according to claim 7, characterized in that: The pre-filter ejection dust removal system for the harvester also includes a second air intake pipeline, one end of which is connected to the air filter, and the other end of which is connected to the air intake port of the engine supercharger.

9. The pre-filter ejection dust exhaust system for a harvester according to any one of claims 1 to 8, characterized in that: A cyclone tube is arranged in the air pre-filter.

10. A harvester, characterized in that: The harvester comprises a pre-filter ejection dust exhaust system for a harvester according to any one of claims 1 to 9.

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