CN220890354U - Air inlet system and agricultural machine - Google Patents

Abstract

The embodiment of the utility model provides an air inlet system and agricultural machinery, and relates to the technical field of agricultural machinery. The agricultural machine comprises an air inlet system, wherein the air inlet system comprises a filtering mechanism and a filtering box body. The filter mechanism is provided with an air inlet end and an air outlet end, the air outlet end is used for being connected with the engine supercharger, the filter box body comprises a filter inlet and a filter outlet, a filter piece is arranged between the filter inlet and the filter outlet, the filter outlet is communicated with the air inlet end, the filter box body is used for being connected with agricultural machinery, and when the filter box body is installed on the agricultural machinery, the filter inlet faces upwards. Because the filter box installs on agricultural machine, filter the entry up, and the end of admitting air is hidden through the filter box, and direct exposure is in the outside, is admitted air from agricultural machine top, can keep apart left and right sides and below most impurity to be provided with the filter between filter inlet and the filtration export, also can filter partial impurity at the in-process of admitting air, can effectively improve filtering mechanism's air intake quality.

Description

Air inlet system and agricultural machine

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to an air inlet system and agricultural machinery.

Background

In the field of engines, an air filter is used for filtering air entering the engine so as to prevent the engine from sucking air with impurity particles during operation and increasing the probability of abrasion and damage, and at present, a large-scale agricultural machine air inlet system in the market at home and abroad is mainly connected with an air inlet of a turbocharger of the engine through a pipeline after an air prefilter and a main air filter are connected in series.

The inventor researches and discovers that the air inlet end of the filtering mechanism of the air inlet system of the existing engine is mostly directly exposed in the environment, and when the air inlet environment is bad, the air inlet quality is poor especially under the conditions of wheat harvest and grain harvest with larger dust.

Disclosure of utility model

The utility model aims to provide an air inlet system which can improve the air inlet quality of a filtering mechanism.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides an air intake system comprising:

the filtering mechanism is provided with an air inlet end and an air outlet end, and the air outlet end is used for being connected with an engine supercharger;

The filter box body comprises a filter inlet and a filter outlet, a filter piece is arranged between the filter inlet and the filter outlet, the filter outlet is communicated with the air inlet end, the filter box body is used for being connected with agricultural machinery, and when the filter box body is installed on the agricultural machinery, the filter inlet faces upwards.

In an alternative embodiment, the filter housing comprises a base plate and a shroud connected to the base plate, a filter inlet is formed for one end of the plate remote from the base plate, and a filter element is disposed at the filter outlet.

In an alternative embodiment, the filtering mechanism comprises a cyclone type prefilter, a prefilter dust discharge pipe, a main filter and an air outlet pipe, wherein the cyclone type prefilter is connected with the prefilter dust discharge pipe, the prefilter dust discharge pipe is used for being connected with an external negative pressure structure, the cyclone type prefilter is connected with the main filter, one end of the main filter, which is far away from the cyclone type prefilter, is connected with the air outlet pipe, one end of the air outlet pipe, which is far away from the main filter, is an air outlet end, and one end of the cyclone type prefilter, which is far away from the main filter, is an air inlet end.

In an alternative embodiment, the outlet duct tapers in radial dimension in a direction away from the main filter.

In an alternative embodiment, the filter mechanism further comprises a connecting pipe, both ends of the connecting pipe are respectively connected with the cyclone-type prefilter and the main filter, and the radial dimension of the connecting pipe is gradually reduced in the direction approaching the main filter.

In an alternative embodiment, the main filter is provided with an automatic dust discharge valve, and when the automatic dust discharge valve detects that the air intake system is in a rest state, the automatic dust discharge valve can discharge impurities separated by the main filter.

In an alternative embodiment, the filtering mechanism further comprises a pressure alarm in communication connection with the terminal, the pressure alarm is arranged on the main filter, and when the pressure alarm detects that the pressure in the main filter reaches a preset pressure, the pressure alarm can send a preset signal to the terminal.

In an alternative embodiment, the cyclone prefilter comprises a prefilter pipe and a plurality of cyclone prefilters arranged in the prefilter pipe, wherein the prefilter pipe is provided with an air inlet end, the cyclone prefilters are distributed at intervals along the radial direction of the prefilter pipe and are close to the air inlet end, the prefilter pipe is connected with the main filter, and the prefilter dust exhaust pipe is communicated with the prefilter pipe.

In an alternative embodiment, the filter mechanism is removably coupled to the filter housing.

In a second aspect, the utility model provides an agricultural machine comprising an air intake system according to any of the preceding embodiments.

The embodiment of the utility model has the beneficial effects that: the air inlet system provided by the embodiment of the utility model comprises a filtering mechanism and a filtering box body. The filter mechanism is provided with an air inlet end and an air outlet end, the air outlet end is used for being connected with the engine supercharger, the filter box body comprises a filter inlet and a filter outlet, a filter piece is arranged between the filter inlet and the filter outlet, the filter outlet is communicated with the air inlet end, the filter box body is used for being connected with agricultural machinery, and when the filter box body is installed on the agricultural machinery, the filter inlet faces upwards. When being in abominable air intake environment, because the filter box installs on agricultural machine, filter the entry up, and the end of admitting air is hidden through the filter box, directly exposes in the outside, is admitted air from agricultural machine top, can keep apart left and right sides and the impurity of below most to be provided with the filter between filter entry and the filtration export, also can filter partial impurity at the in-process of admitting air, thereby can effectually improve filtering mechanism's air intake quality. The embodiment of the utility model also provides an agricultural machine, which comprises the air inlet system, so that the air inlet system has the beneficial effects.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a filtering structure according to an embodiment of the present utility model at a first view angle;

FIG. 2 is a schematic view of a filter structure according to an embodiment of the present utility model at a second view angle;

FIG. 3 is a schematic diagram illustrating an assembly of a filtering mechanism and a filtering case according to an embodiment of the present utility model.

Icon 1-air intake system; 10-a filtering mechanism; 11-a cyclone-type prefilter; 110-prefiltering the pipeline; 111-an air inlet end; 112-a cyclone prefilter; 113-prefiltering the dust-discharging tube; 12-connecting pipes; 13-a primary filter; 14-an air outlet pipe; 141-an air outlet end; 15-a pressure alarm; 20-a filter box body; 21-a filtration inlet; 22-a filtration outlet; 23-a filter; 30-a laryngeal cuff; 40-hoops; 50-bolts; 60-sealing plate; 70-an automatic dust discharge valve; 2-an engine supercharger; 3-shroud of engine fan.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The specific structure of the air intake system 1 and the corresponding technical effects thereof according to the embodiment of the present utility model are described in detail below with reference to the accompanying drawings.

Referring to fig. 1-3, an air intake system 1 according to an embodiment of the present utility model includes a filtering mechanism 10 and a filtering box 20.

The filter mechanism 10 has an air inlet end 111 and an air outlet end 141, the air outlet end 141 is used for being connected with the engine supercharger 2, the filter box 20 comprises a filter inlet 21 and a filter outlet 22, a filter element 23 is arranged between the filter inlet 21 and the filter outlet 22, the filter outlet 22 is communicated with the air inlet end 111, the filter box 20 is used for being connected with an agricultural machine, and when the filter box 20 is installed on the agricultural machine, the filter inlet 21 faces upwards.

It can be appreciated that, through the setting of the filter box 20, when the air intake system 1 is set up in agricultural machinery, the air intake end 111 of the filter mechanism 10 can not directly expose in the external environment, when being in abominable air intake environment, because the filter box 20 is installed on agricultural machinery, the filter inlet 21 is upwards, and the air intake end 111 is hidden through the filter box 20, directly expose in the outside, air intake from the agricultural machinery top, can isolate the impurity of left and right sides and below majority, and be provided with the filter 23 between filter inlet 21 and the filter outlet 22, also can filter partial impurity in the air intake process, thereby can effectually improve the air intake quality of the filter mechanism 10.

Further, in this embodiment, the filtering box 20 includes a bottom plate and a surrounding plate connected to the bottom plate, one end of the surrounding plate far away from the bottom plate forms a filtering inlet 21, a filtering outlet 22 is disposed on the surrounding plate, and a filtering piece 23 is disposed at the filtering outlet 22.

It can be appreciated that the bottom plate of the filtering box 20 is arranged on the agricultural machine, the filtering inlet 21 is arranged on the top plate, and the filtering inlet 21 is arranged at the top, so that the air inlet system 1 provided by the embodiment is used for air inlet through the filtering inlet 21 arranged at the top, and can isolate the dust with higher content impurities on the left side, the right side and the lower side of the air inlet, thereby effectively improving the air suction quality.

When the air intake system 1 is provided in an agricultural machine, the filter housing 20 may be provided at a higher place of the agricultural machine.

In some existing air intake systems 1, the air intake end 111 of the pre-filter is not only exposed to the air, but also directly discharges the dust separated from the pre-filter through the pre-filter, and other negative pressure structures are not connected, so that the dust separation effect is poor, the dust discharged through the pre-filter can fly around the pre-filter, and the phenomenon of re-suction of the discharged dust is easy to occur.

Further, the filtering mechanism 10 includes a cyclone pre-filtering piece 11, a pre-filtering dust-discharging pipe 113, a main filter 13 and an air outlet pipe 14, the cyclone pre-filtering piece 11 is connected with the pre-filtering dust-discharging pipe 113, the pre-filtering dust-discharging pipe 113 is used for being connected with an external negative pressure structure, the cyclone pre-filtering piece 11 is connected with the main filter 13, one end of the main filter 13, which is far away from the cyclone pre-filtering piece 11, is connected with the air outlet pipe 14, one end of the air outlet pipe 14, which is far away from the main filter 13, is an air outlet end 141, and one end of the cyclone pre-filtering piece 11, which is far away from the main filter 13, is an air inlet end 111.

It will be appreciated that during the air intake process, the cyclone pre-filter 112 is connected to the external negative pressure structure via the pre-filter dust exhaust pipe 113, and a certain negative pressure can be generated to the pre-filter dust exhaust pipe 113 by the external negative pressure structure.

Outside air firstly flows through the filtering box body 20 and enters the cyclone prefilter 11, the cyclone prefilter 11 comprises a cyclone prefilter 112, and as the external negative pressure structure can generate certain negative pressure on the prefilter dust discharge pipe 113, dust separated by the cyclone prefilter 112 can be discharged through the prefilter dust discharge pipe 113 under the action of the negative pressure of the prefilter dust discharge pipe 113, and the separation effect of dust of the cyclone separator is improved.

And since the dust is discharged through the prefilter dust discharge pipe 113 and the prefilter dust discharge pipe 113 has a certain length, the discharged dust can be far away from the air inlet end 111, and the dust discharged from the prefilter can be far away from the air inlet end 111 through the filter box 20, so that the phenomenon of re-suction of the dust filtered by the cyclone type prefilter 11 can be reduced.

It should be noted that the external negative pressure structure may be a structure on an agricultural machine, for example, may be an engine fan on a working machine, and it is understood that the prefilter dust exhaust pipe 113 may be connected to the shroud 3 of the engine fan, and negative pressure is generated to the prefilter dust exhaust pipe 113 by the engine fan.

In an alternative embodiment, a dust box may be further provided at an end of the prefilter dust discharge pipe 113 remote from the cyclone type prefilter 11 to prevent dust separated by prefilter from flying.

Further, in the present embodiment, the radial dimension of the air outlet pipe 14 gradually decreases in the direction away from the main filter 13. It is easily understood that the main filter 13 can be connected to the engine supercharger 2 of the agricultural machine via the outlet duct 14. That is, since the radial dimension of the outlet duct 14 is gradually reduced in a direction away from the main filter 13, the speed of air is gradually increased when the air flows into the engine through the outlet duct 14, so that the air intake efficiency of the engine is improved.

Of course, in other embodiments, the shape of the outlet pipe 14 is not limited to the above arrangement, and may be other shapes, for example, the pipe diameter of the outlet pipe 14 is not changed in the axial direction thereof.

Further, the filtering mechanism 10 further comprises a connecting pipe 12, and two ends of the connecting pipe 12 are respectively connected with the cyclone prefilter 11 and the main filter 13. That is, the cyclone-type prefilter 11 is connected to the main filter 13 through the connection pipe 12, and the connection pipe 12 gradually decreases in radial dimension in a direction approaching the main filter 13. As described above, since the radial dimension of the connection pipe 12 is gradually reduced in the direction approaching the main filter 13, the flow velocity of the air is gradually increased when it flows in the connection pipe 12.

Further, the cyclone prefilter 11 includes a prefilter pipe 110 and a plurality of cyclone prefilters 112 disposed in the prefilter pipe 110, the prefilter pipe 110 has an air inlet end 111, the plurality of cyclone prefilters 112 are arranged at intervals along a radial direction of the prefilter pipe 110 and are close to the air inlet end 111, the prefilter pipe 110 is connected to the main filter 13, and the prefilter dust exhaust pipe 113 is in communication with the prefilter pipe 110.

That is, the prefilter pipe 110 is connected to the connection pipe 12. In this embodiment, the swirl pre-filter 112 has three. The prefilter duct 110 is provided with a mounting plate for mounting the swirl prefilter 112. It will be appreciated that the filtering effect on the air entering from the air intake end 111 can be increased by the three swirl pre-filters 112.

In the present embodiment, the main filter 13 is connected to the connection pipe 12 via the throat hoop 30 in order to ensure the sealing performance of the intake system 1. The prefilter pipe 110 is connected with the connecting pipe 12 in a sealing way through bolts 50 and sealing rings. The air outlet pipe 14 is also connected with the main filter 13 in a sealing way through bolts 50 and hoops 40.

Further, in the present embodiment, the filter mechanism 10 is detachably connected to the filter housing 20, and it is understood that the filter mechanism 10 is convenient to be replaced by a detachable connection manner, so as to clean or repair the filter mechanism 10 or the filter housing 20.

In this embodiment, in order to ensure sealing connection with the filtration tank 20, the filtration pipeline is sleeved with a sealing plate 60, the sealing plate 60 is provided with a screw, and a sealing ring is further provided on one side of the sealing plate 60 away from the main filter 13, and the filtration pipeline is in sealing connection with the side wall of the filtration tank 20 through the sealing plate 60, the screw and the sealing ring.

Similarly, the end of the air outlet pipe 14 away from the main filter 13 is also provided with a hoop 40, and the hoop 40 is provided with a bolt 50, and it is understood that the air outlet pipe 14 can be connected with the engine supercharger 2 in a sealing way through the hoop 40 and the bolt 50.

In this embodiment, the air outlet pipe 14 and the connecting pipe 12 are all rubber pipes, which have a certain deformability and can be installed by a user conveniently.

In some alternative embodiments, the main filter 13 may further be provided with an automatic dust exhaust valve 70, and when the automatic dust exhaust valve 70 detects that the air intake system 1 is in a rest state, the automatic dust exhaust valve 70 can exhaust the main filter 13 to filter the separated impurities. It should be noted that the rest state is understood to be a non-operating state of the air intake system 1, that is, when the main filter 13 and the swirl pre-filter 112 are both operating, and when the air outlet pipe 14 and the connecting pipe 12 are both flowing. When the air intake system 1 is installed on agricultural machinery, the frequency of cleaning the main filter 13 by the manual operation of getting off the vehicle of a user can be reduced through the arrangement, and the service life of the main filter 13 can be prolonged.

Further, the filtering mechanism 10 further includes a pressure alarm 15 communicatively connected to the terminal, the pressure alarm 15 is disposed on the main filter 13, and when the pressure alarm 15 detects that the pressure in the main filter 13 reaches the preset pressure, the pressure alarm 15 can send a preset signal to the terminal. The terminal may refer to a control room in an agricultural machine.

The embodiment of the utility model also provides an agricultural machine, which comprises the air inlet system 1. When the air intake system 1 is mounted on an agricultural machine, the filter housing 20 is mounted on the upper side of the agricultural machine, the filter inlet 21 is directed upward, the end of the air outlet pipe 14 remote from the main filter 13 is connected to the engine supercharger 2 through the anchor ear 40, and the prefilter dust discharge pipe 113 is connected to the hood 3 of the engine fan. Through the setting of filter box 20 for filter inlet 21 overhead, and inlet 111 is hidden, can avoid directly exposing at external environment, and can improve the air quality that gets into inlet 111 through filter box 20 prefilter, and be connected with the guard shield 3 of engine fan through prefilter dust exhaust pipe 113, when the engine fan moves, can make prefilter discharge pipe appear the negative pressure, so that the separation effect of dust in the improvement prefilter pipeline 110, make the dust can be discharged through prefilter dust exhaust pipe 113, and can also avoid prefilter dust to be close to inlet 111 through prefilter dust exhaust pipe 113 and filter box 20, also avoid appearing prefilter dust and inhale the phenomenon again promptly.

In summary, the air intake system 1 provided in the embodiment of the utility model includes the filtering mechanism 10 and the filtering box 20. The filter mechanism 10 has an air inlet end 111 and an air outlet end 141, the air outlet end 141 is used for being connected with the engine supercharger 2, the filter box 20 comprises a filter inlet 21 and a filter outlet 22, a filter element 23 is arranged between the filter inlet 21 and the filter outlet 22, the filter outlet 22 is communicated with the air inlet end 111, the filter box 20 is used for being connected with an agricultural machine, and when the filter box 20 is installed on the agricultural machine, the filter inlet 21 faces upwards. When being in abominable air intake environment, because filter box 20 installs on agricultural machine, filter inlet 21 upwards, and air inlet end 111 is hidden through filter box 20, and direct exposure is in the outside, is admitted air from agricultural machine top, can keep apart left and right sides and below most impurity to be provided with filter 23 between filter inlet 21 and the filter outlet 22, also can filter partial impurity at the in-process of admitting air, thereby can effectually improve the quality of admitting air of filtering mechanism 10.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An air intake system, comprising:

The filtering mechanism is provided with an air inlet end and an air outlet end, and the air outlet end is used for being connected with an engine supercharger;

The filter box, the filter box includes filtration entry and filtration export, filtration entry with be provided with the filter element between the filtration export, filtration export with the inlet end intercommunication, the filter box is used for being connected with agricultural machine, works as the filter box install in on the agricultural machine, filtration entry up.

2. An air intake system according to claim 1, wherein:

The filter box comprises a bottom plate and a coaming connected with the bottom plate, wherein one end of the coaming, far away from the bottom plate, forms the filter inlet, the filter outlet is arranged on the coaming, and the filter element is arranged at the filter outlet.

3. An air intake system according to claim 1, wherein:

The filter mechanism comprises a spiral-flow type prefilter, a prefilter dust exhaust pipe, a main filter and an air outlet pipe, wherein the spiral-flow type prefilter is connected with the prefilter dust exhaust pipe, the prefilter dust exhaust pipe is used for being connected with an external negative pressure structure, the spiral-flow type prefilter is connected with the main filter, one end of the main filter, which is far away from the spiral-flow type prefilter, is connected with the air outlet pipe, one end of the air outlet pipe, which is far away from the main filter, is an air outlet end, and one end of the spiral-flow type prefilter, which is far away from the main filter, is an air inlet end.

4. An air intake system according to claim 3, wherein:

The radial dimension of the outlet duct gradually decreases in a direction away from the main filter.

5. An air intake system according to claim 3, wherein:

The filtering mechanism further comprises a connecting pipe, two ends of the connecting pipe are respectively connected with the cyclone type pre-filtering piece and the main filter, and the radial size of the connecting pipe is gradually reduced in the direction close to the main filter.

6. An air intake system according to claim 3, wherein:

The main filter is provided with an automatic dust discharging valve, and when the automatic dust discharging valve detects that the air inlet system is in a rest state, the automatic dust discharging valve can discharge impurities which are filtered and separated by the main filter.

7. An air intake system according to claim 3, wherein:

The filtering mechanism further comprises a pressure alarm in communication connection with the terminal, the pressure alarm is arranged on the main filter, and when the pressure alarm detects that the pressure in the main filter reaches the preset pressure, the pressure alarm can send a preset signal to the terminal.

8. An air intake system according to claim 3, wherein:

The cyclone prefilter comprises prefilter pipes and a plurality of cyclone prefilters arranged in the prefilter pipes, the prefilter pipes are provided with air inlet ends, the cyclone prefilters are arranged along the radial direction of the prefilter pipes at intervals and are close to the air inlet ends, the prefilter pipes are connected with the main filter, and the prefilter dust discharge pipes are communicated with the prefilter pipes.

9. An air intake system according to claim 1, wherein:

the filtering mechanism is detachably connected with the filtering box body.

10. An agricultural machine comprising an air intake system according to any one of claims 1-9.