CN112588037A - Air filtering device for cab of construction machine - Google Patents
Air filtering device for cab of construction machine Download PDFInfo
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- CN112588037A CN112588037A CN202011334057.7A CN202011334057A CN112588037A CN 112588037 A CN112588037 A CN 112588037A CN 202011334057 A CN202011334057 A CN 202011334057A CN 112588037 A CN112588037 A CN 112588037A
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- Prior art keywords
- filter
- dust
- pipe
- air
- filter cartridge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/26—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies rotatable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4218—Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/74—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
- B01D46/78—Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving centrifugal forces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an air filtering device for a cab of construction machinery, which comprises a filter shell with a three-dimensional structure and a cylindrical filter cartridge arranged in the filter shell; the top of the filter shell is connected with an air inlet pipe communicated with the inside of the filter shell, the side wall of one side of the filter shell along the length direction of the filter shell is connected with an exhaust pipe communicated with the inside of the filter shell, and the bottom of the filter shell is communicated with a dust deposition pipe with a conical structure. According to the invention, the rotatable filter cartridge and the dust accumulation pipe at the bottom of the filter shell are arranged in the device, so that air filtration and dust collection can be realized, dust in the dust accumulation pipe is introduced into the dust accumulation pipe by using engine tail gas as a gas source, and dust cleaning operation in the dust accumulation pipe is automatically completed by matching the electromagnetic valve and the dust alarm sensor, so that the trouble of manual maintenance is avoided, and a large amount of maintenance time and material cost are saved.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to an air filtering device for a cab of construction machinery.
Background
The function of the air filter is to ensure the intake quality in an engine intake system, and the air often contains a large amount of impurities, and most of the impurities are fine particles with high hardness, such as silicon oxide, iron oxide or aluminum oxide. As a first pass of engine air intake, the performance of the air filter affects the efficiency and life of the engine. And construction machinery equipment is often in the severe dust environment, and the air cleaner among the air intake system often can take place blocking phenomenon, and need park after the air cleaner blocks up and wash, otherwise very easily cause the air cleaner life-span to shorten, and vehicle maintenance frequency is too high, influences the progress of construction, has increased the input cost of manpower and financial resources. The invention provides a self-cleaning air filter device for a cab of a construction machine.
Disclosure of Invention
The invention aims to solve the technical problems, and provides an air filtering device for a cab of a construction machine, which can realize air filtration and dust collection by arranging a rotatable filter cylinder and a dust tube at the bottom of a filter shell in the device, wherein dust in the dust tube is introduced into the dust tube by using engine tail gas as an air source, and the automatic injection of the dust tube is realized by matching an electromagnetic valve and a dust alarm sensor, so that the trouble of manually maintaining a filter in the prior art is avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air filtering device for a cab of construction machinery comprises a filter shell with a three-dimensional structure and a cylindrical filter cylinder arranged in the filter shell;
the top of the filter shell is connected with an air inlet pipe communicated with the interior of the filter shell, the side wall of one side of the filter shell along the length direction of the filter shell is connected with an exhaust pipe communicated with the interior of the filter shell, and the bottom of the filter shell is communicated with a dust collecting pipe with a conical structure;
the central axis of the filter cartridge and the central axis of the exhaust pipe are arranged concentrically, and the filter cartridge is rotatably arranged in the filter shell and has adjustable rotating speed; the circumference surface of the filter cartridge is of a net-shaped filter structure, one end of the filter cartridge is connected with a sealing baffle to form a sealing structure, and the other end of the filter cartridge is provided with a vent to form an opening structure; a ventilation limiting pipe is integrally formed on the inner wall of the filter shell, and a ventilation opening of the filter cartridge is communicated with the exhaust pipe in a sealing manner through the ventilation limiting pipe;
the dust collector also comprises a gas injection device communicated with the dust tube, and the gas injection device is controlled by a controller and is used for automatically injecting dust in the dust tube.
Preferably, the center department of cartridge filter is connected with central pivot, the one end of central pivot runs through in proper order seal baffle, set up in be connected with motor drive behind the first bearing of filter casing, the vent center department of cartridge filter has the fixed lantern ring through the first bracing piece fixed mounting that annular distributes, the outside extension of the other end of central pivot is through this fixed lantern ring and cup joints rather than the inner wall is fixed, the center department of blast pipe is connected with the second bearing through the second bracing piece, the central pivot extends to behind the fixed lantern ring the second bearing cup joints rather than the hole is fixed.
Preferably, the ventilation limiting pipe and the exhaust pipe are concentrically arranged, one side of the ventilation limiting pipe, which corresponds to the filter cartridge, is inwardly contracted to form a counter bore step, and the open end of the filter cartridge is embedded into the counter bore step.
Preferably, the inner diameter of the ventilation limiting pipe is the same as that of the filter cylinder.
Preferably, the outer side of the circumferential surface filter screen structure of the filter cartridge is wrapped with a non-woven fabric, the inner side of the circumferential surface filter screen structure of the filter cartridge is provided with filter paper, and the mesh structure, the non-woven fabric and the filter paper on the wall of the filter cartridge jointly form a filter element for filtering dust.
Preferably, the thickness of the non-woven fabric is 4-10 mm.
Preferably, the air source of the air blowing device selects engine tail gas of mechanical equipment, and the air blowing device comprises an air radiator and an exhaust injection pipe, wherein an exhaust manifold connector of the air radiator is connected with an engine exhaust manifold, and the output end of the air radiator is communicated with the inside of the dust collecting pipe through the exhaust injection pipe.
Preferably, the exhaust ejector pipe is provided with an electromagnetic air inlet valve, the outer wall of the dust collecting pipe is provided with a dust alarm sensor, the dust alarm sensor is in signal connection with the controller through a terminal line of the dust alarm sensor, and the output end of the controller is in signal connection with the electromagnetic air inlet valve.
The invention has the beneficial effects that:
(1) the filter shell is rotatably provided with a cylindrical filter cartridge, one axial end of the filter cartridge is of a sealing structure, the other axial end of the filter cartridge is directly communicated with the exhaust pipe through the ventilation limiting pipe, the filter cartridge is driven by the motor to rotate in the filter shell, gas enters the cavity of the filter cartridge through the filter structure on the circumferential surface of the filter cartridge, and finally flows through the ventilation limiting pipe and the exhaust pipe to be exhausted, so that fresh air flow is provided for a cab. And the particulate matter in the air can't be because of the filtration through the cartridge filter attached to its surface to being got rid of filter shell inner wall and finally collecting inside the laying dust pipe, the inside dust of laying dust pipe passes through the tail gas operation air supply of engine, through the solenoid valve of admitting air and dust alarm sensor cooperation effect, the inside dust cleaning operation of laying dust pipe of automatic completion, the trouble of having removed artificial maintenance from, and saved a large amount of maintenance time and material cost.
(2) The filter element of the invention forms a double-layer structure by a net structure, non-woven fabrics and filter paper on the filter screen cylinder, and the non-woven fabrics with high porosity are used for intercepting large-particle dust, thereby reducing the blockage of the non-woven fabrics with high porosity on the surface of the filter paper with low porosity, and ensuring the filtering efficiency and the filtering quality of air.
Drawings
FIG. 1 is a schematic view of a construction machine cab air filter arrangement according to a first aspect of the present invention;
FIG. 2 is a schematic view of a second angle of the air filter assembly for a cab of a construction machine according to the present invention;
FIG. 3 is a first angular view of the internal structure of an air filter assembly for a cab of a construction machine according to the present invention;
FIG. 4 is a second perspective view of the internal structure of the air filter of the cab of the construction machine according to the present invention;
FIG. 5 is a schematic view of a filter cartridge of an air filter device for a cab of a construction machine according to the present invention without a filter element;
fig. 6 is a schematic structural diagram of a filter cartridge in an air filter device of a cab of a construction machine according to the present invention.
In the figure: 1. a filter housing; 2. an air inlet pipe; 3. a motor; 4. a dust pipe; 5. an air radiator; 6. an exhaust manifold connection port; 7. an exhaust ejector tube; 8. an exhaust pipe; 9. an electromagnetic intake valve; 10. a dust alarm sensor; 11. a central rotating shaft; 12. a filter cartridge; 121. sealing the baffle; 122. a vent; 123. a fixed collar; 124. a first support bar; 13. a first bearing; 14. a ventilation limiting pipe; 15. a counter bore step; 16. a second bearing; 17. a second support bar; 18. non-woven fabrics; 19. and (5) filter paper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the invention type, and are not to be construed as limiting the invention type.
In the description of the invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the invention can be understood by those of ordinary skill in the art as appropriate.
Example one
The invention provides an air filtering device for a cab of construction machinery, which comprises a filter shell 1 in a three-dimensional structure, wherein the top of the filter shell 1 is connected with an air inlet pipe 2 communicated with the interior of the filter shell, the side wall of one side of the filter shell 1 in the length direction is connected with an exhaust pipe 8 communicated with the interior of the filter shell, and the bottom of the filter shell 1 is communicated with a dust tube 4 in a conical structure. A cylindrical filter cartridge 12 is rotatably arranged in the filter housing 1, the central axis of the filter cartridge 12 is concentric with the central axis of the exhaust pipe 8, and the rotating speed of the filter cartridge is adjustable; the circumferential surface of the filter cartridge 12 is a net-shaped filter structure, one end of the filter cartridge forms a sealing structure by being connected with a sealing baffle plate 121, and the other end is provided with a vent 122 to form an opening structure; the inner wall of the filter housing 1 is integrally formed with a ventilation limiting pipe 14, and the ventilation opening 122 of the filter cartridge 12 is in sealed communication with the exhaust pipe 8 through the ventilation limiting pipe 14. Air outside the mechanical equipment flows through the air inlet pipe 2 and enters the filter shell 1, because the filter cylinder 12 is in a rotating state, one axial end of the filter cylinder 12 is in a sealing structure, and the other axial end of the filter cylinder 12 is directly communicated with the exhaust pipe 8 through the ventilation limiting pipe 14, outside air enters the filter shell 1, enters the cavity of the filter cylinder 12 through the filtering structure on the circumferential surface of the filter cylinder, and finally flows through the ventilation limiting pipe 14 and the exhaust pipe 8 to be exhausted, so that fresh air flow is provided for a cab, and particulate matters in the air cannot be attached to the surface of the air through the filtering structure of the filter cylinder 12 and are thrown onto the inner wall of the filter shell 1, and finally sink to the bottom of the wall along with the inner wall of the filter shell 1 and are deposited in the dust collecting; the gas blowing device is controlled by the controller to regularly blow out the dust in the dust tube 4 for cleaning.
Specifically, the center of the filter cartridge 12 is connected with a central rotating shaft 11, one end of the central rotating shaft 11 sequentially penetrates through the sealing baffle 121 and is connected with the motor 3 in a driving manner after being arranged on the first bearing 13 of the filter housing 1, the center of the ventilation opening 122 of the filter cartridge 12 is fixedly provided with a fixed lantern ring 123 through a first support rod 124 which is distributed annularly, the other end of the central rotating shaft 11 outwards extends through the fixed lantern ring 123 and is fixedly sleeved with the inner wall of the fixed lantern ring, the center of the exhaust pipe 8 is connected with a second bearing 16 through a second support rod 17, the central rotating shaft 11 extends to the second bearing 16 after penetrating through the fixed lantern ring 123 and is fixedly sleeved with the inner hole of the second bearing, the motor 3 drives the central rotating shaft 11 to rotate, the filter cartridge 12 is fixedly sleeved on the central rotating shaft 11, the two synchronously rotate, the filter cartridge 12 generates centrifugal force on particulate matters in, and motor 3 chooses for use servo motor, can adjust the rotational speed of cartridge filter 12 as required.
Further, since the volume of the filter cartridge 12 is smaller than the space inside the filter housing 1, the fresh air exhausted from the ventilation opening 122 of the filter cartridge 12 needs to be completely introduced into the exhaust pipe 8, therefore, the ventilation limiting pipe 14 is arranged between the ventilation opening 122 of the filter cartridge 12 and the exhaust pipe 8 to be hermetically connected, the ventilation limiting pipe 14 is arranged concentrically with the exhaust pipe 8, and one side of the ventilation limiting pipe 14 corresponding to the filter cartridge 12 is inwardly shrunk to form a counter bore step 15, the open end of the filter cartridge 12 is embedded into the counter bore step 15, so that the air after being filtered can be ensured to be completely introduced into the exhaust pipe 8, and the air which is not subjected to filtering treatment is prevented from directly entering the exhaust pipe 8.
As a preferred embodiment, the inner diameter of the ventilation limiting pipe 14 is the same as that of the filter cartridge 12, so that air exhausted from the ventilation opening 122 of the filter cartridge 12 is prevented from being blocked by the bottom of the counter bore step 15 in the ventilation limiting pipe 14, and the hidden trouble of air leakage from the position is avoided.
In addition, the outside of the filter screen structure of the circumferential surface of the filter cartridge 12 is wrapped with the non-woven fabric 18, the inside of the filter screen structure of the circumferential surface of the filter cartridge 12 is provided with the filter paper 19 with a pleated structure, the reticular structure on the wall of the filter cartridge 12, the non-woven fabric 18 and the filter paper 19 jointly form the filter element for filtering dust, the performance of the filter element directly influences the quality of air in a cab, in order to ensure the filtering efficiency of the filter cartridge 12, aiming at the characteristics of the filter paper 19 and the non-woven fabric 18, the two materials are combined to form the double-layer filter element with the non-woven fabric 18 outside and the filter paper 19 inside, the filter paper 19 has smaller porosity and thinner thickness, and mainly belongs to surface filtration in the filtration, so the filter paper 19 has stronger filtering efficiency, while the non-woven fabric 18 has larger porosity and is softer, and mainly, reducing the blockage of the surface of the low porosity filter paper 19. The thickness of the non-woven fabric 18 is selected to be 8mm as the optimal thickness, so that the air filtering requirement can be met, and the rapid circulation of air is not influenced.
In this embodiment, mechanical equipment's engine tail gas is chooseed for use to gaseous jetting device's air supply, tail gas through the recycle engine has had environmental protection effect concurrently, mechanical equipment's engine exhaust manifold and air radiator 5's exhaust manifold connector 6 are linked together, the cooling is got into to air radiator 5 back by exhaust high temperature tail gas, air radiator 5's output is drawn through the exhaust and is penetrated pipe 7 and be linked together with laying dust pipe 4 is inside, tail gas is blown into to laying dust pipe 4 inside with its inside dust blowout after cooling treatment.
In order to realize the automatic cleaning of dust, in the embodiment, an electromagnetic air inlet valve 9 is arranged on the exhaust injection pipe 7, a dust alarm sensor 10 is arranged on the outer wall of the dust accumulation pipe 4, the dust alarm sensor 10 is in signal connection with a controller through a terminal wire, the output end of the controller is in signal connection with the electromagnetic air inlet valve 9, when the dust in the dust tube 4 reaches the warning amount, the dust alarm sensor 10 arranged outside the dust tube 4 is actuated to act, this dust alarm sensor 10 passes through the terminal line with signal transmission for the controller, and the controller passes the instruction and gives and install the air inlet solenoid valve 9 on exhaust draws the penetrate pipe 7, and the action of air inlet solenoid valve 9, inlet channel are opened, draws the discharge port that penetrates pipe 7 and be connected to laying dust pipe 4 with the gas in the engine exhaust manifold through the exhaust, utilizes the exhaust to draw the gas strength injection in the pipe 7, spouts the particulate matter in laying dust pipe 4 and blows out filter casing 1 outside.
Example two
The air filter device in this embodiment has the same structure as that in the first embodiment, and is different from the first embodiment in that: the thickness of the non-woven fabric 18 is 4 mm.
EXAMPLE III
The air filter device in this embodiment has the same structure as that in the first embodiment, and is different from the first embodiment in that: the thickness of the nonwoven fabric 18 is 10 mm.
The invention provides an air filtering device for a cab of construction machinery, which has the working principle that: the air filtering device is installed in a machine box of mechanical equipment, wherein an exhaust pipe 8 is hermetically communicated with the interior of a cab, the filter shell 1, the motor 3 and the air radiator 5 are reasonably and firmly fixed according to the space in the machine box of the engine, and the air radiator 5 is connected with an exhaust manifold of the engine through an exhaust manifold connecting port 6. When mechanical equipment operates, the motor 3 is driven to act through the controller, the motor 3 drives the filter cartridge 12 to rotate in the filter shell 1, outside air enters the filter shell 1 from the air inlet pipe 2 and enters the cavity of the filter cartridge 12 after being filtered by the filter element structure on the filter cartridge 12, the filtered fresh air flow finally flows through the ventilation limiting pipe 14 and is discharged into a cab from the exhaust pipe 8 for people to use, particulate matters in the air are attached to the non-woven fabric 18 outside the filter cartridge 12 due to the fact that the particulate matters cannot pass through the filter element structure, the particulate matters are thrown to the bottom of the filter shell 1 under the rotation action of the filter cartridge 12 and finally deposit in the dust accumulation pipe 4, when dust in the dust accumulation pipe 4 reaches an alarm amount, the dust alarm sensor 10 acts to alarm and transmits signals to the controller, and the controller controls the air inlet electromagnetic valve 9 to be conducted, and tail gas generated by an equipment engine enters the dust deposition pipe 4 after heat dissipation and cooling treatment, and dust is sprayed to the outside of the filter shell 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (8)
1. The air filtering device for the cab of the construction machine is characterized by comprising a filter shell (1) with a three-dimensional structure and a cylindrical filter cylinder (12) arranged in the filter shell (1);
the top of the filter shell (1) is connected with an air inlet pipe (2) communicated with the interior of the filter shell, the side wall of one side of the filter shell (1) along the length direction is connected with an exhaust pipe (8) communicated with the interior of the filter shell, and the bottom of the filter shell (1) is communicated with a dust deposition pipe (4) with a conical structure;
the central axis of the filter cartridge (12) and the central axis of the exhaust pipe (8) are arranged concentrically, and the filter cartridge (12) is rotatably arranged in the filter shell (1) and has adjustable rotating speed; the circumferential surface of the filter cartridge (12) is of a net-shaped filter structure, one end of the filter cartridge forms a sealing structure by being connected with a sealing baffle plate (121), and the other end of the filter cartridge is provided with a vent (122) to form an opening structure; a ventilation limiting pipe (14) is integrally formed on the inner wall of the filter shell (1), and a ventilation opening (122) of the filter cartridge (12) is communicated with the exhaust pipe (8) in a sealing way through the ventilation limiting pipe (14);
the dust collector also comprises a gas injection device communicated with the dust tube (4), and the gas injection device is controlled by a controller and is used for automatically injecting dust in the dust tube (4).
2. The cab air filter device for construction machinery according to claim 1, the center of the filter cartridge (12) is connected with a central rotating shaft (11), one end of the central rotating shaft (11) sequentially penetrates through the sealing baffle (121) and is arranged behind a first bearing (13) of the filter shell (1) and then is in driving connection with the motor (3), a fixed lantern ring (123) is fixedly arranged at the center of the ventilation opening (122) of the filter cylinder (12) through first support rods (124) which are distributed annularly, the other end of the central rotating shaft (11) extends outwards through the fixed lantern ring (123) and is fixedly sleeved with the inner wall of the fixed lantern ring, the center of the exhaust pipe (8) is connected with a second bearing (16) through a second support rod (17), the central rotating shaft (11) penetrates through the fixed lantern ring (123), extends to the second bearing (16) and is fixedly sleeved with an inner hole of the second bearing.
3. The air filter device for the cab of the construction machine according to claim 2, wherein the ventilation limiting pipe (14) is disposed concentrically with the exhaust pipe (8), and a side of the ventilation limiting pipe (14) corresponding to the filter cartridge (12) is inwardly shrunk to form a counter bore step (15), and an open end of the filter cartridge (12) is fitted into the counter bore step (15).
4. A construction machine cab air filter device according to claim 3, wherein the ventilation limiting tube (14) has the same inner diameter as the filter cartridge (12).
5. The air filter device for the cab of the construction machine as claimed in any one of claims 1 to 4, wherein the outer side of the circumferential screen structure of the filter cartridge (12) is wrapped with the non-woven fabric (18), the inner side of the circumferential screen structure of the filter cartridge (12) is provided with the filter paper (19), and the mesh structure on the wall of the filter cartridge (12), the non-woven fabric (18) and the filter paper (19) together form a filter element for filtering dust.
6. A cab air filter for construction machinery according to claim 5, wherein the thickness of the non-woven fabric (18) is selected to be 4-10 mm.
7. The air filtering device for the cab of the construction machine as claimed in claim 1, wherein an air source of the air blowing device is engine exhaust of mechanical equipment, and comprises an air radiator (5) and an exhaust ejector pipe (7), an exhaust manifold connecting port (6) of the air radiator (5) is connected with an engine exhaust manifold, and an output end of the air radiator (5) is communicated with the inside of the dust collecting pipe (4) through the exhaust ejector pipe (7).
8. The air filtering device for the cab of the construction machine as claimed in claim 7, wherein the exhaust ejector pipe (7) is provided with an electromagnetic air inlet valve (9), the outer wall of the dust deposition pipe (4) is provided with a dust alarm sensor (10), the dust alarm sensor (10) is in signal connection with the controller through a terminal wire of the dust alarm sensor, and the output end of the controller is in signal connection with the electromagnetic air inlet valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334057.7A CN112588037A (en) | 2020-11-25 | 2020-11-25 | Air filtering device for cab of construction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011334057.7A CN112588037A (en) | 2020-11-25 | 2020-11-25 | Air filtering device for cab of construction machine |
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| Publication Number | Publication Date |
|---|---|
| CN112588037A true CN112588037A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011334057.7A Withdrawn CN112588037A (en) | 2020-11-25 | 2020-11-25 | Air filtering device for cab of construction machine |
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| CN (1) | CN112588037A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309228A (en) * | 2021-05-29 | 2021-08-27 | 河北春绿环保科技有限公司 | Side suction type movable workshop |
| CN114272695A (en) * | 2022-01-17 | 2022-04-05 | 广东正升建筑有限公司 | Intelligence dust device based on wisdom building |
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| CN107288785A (en) * | 2017-08-11 | 2017-10-24 | 西京学院 | A kind of mine vehicle self-cleaning air filter |
| CN208042555U (en) * | 2018-03-29 | 2018-11-02 | 成都锐点精密工具有限公司 | A kind of oil filtering thermostat |
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2020
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|---|---|---|---|---|
| WO1984001309A1 (en) * | 1982-10-01 | 1984-04-12 | Donaldson Co Inc | Self-cleaning cabinet dust collector |
| US4826512A (en) * | 1988-10-19 | 1989-05-02 | Fuller Carmel U | Self-cleaning air filter |
| CN203139824U (en) * | 2013-01-06 | 2013-08-21 | 蚌埠市宏威滤清器有限公司 | Filter element of efficient air filter with filter paper unlikely to loose |
| CN107288785A (en) * | 2017-08-11 | 2017-10-24 | 西京学院 | A kind of mine vehicle self-cleaning air filter |
| CN208042555U (en) * | 2018-03-29 | 2018-11-02 | 成都锐点精密工具有限公司 | A kind of oil filtering thermostat |
| CN108859541A (en) * | 2018-05-22 | 2018-11-23 | 曹文东 | A kind of engraving machine wet dust adsorptive purifier |
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| CN113309228A (en) * | 2021-05-29 | 2021-08-27 | 河北春绿环保科技有限公司 | Side suction type movable workshop |
| CN114272695A (en) * | 2022-01-17 | 2022-04-05 | 广东正升建筑有限公司 | Intelligence dust device based on wisdom building |
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Application publication date: 20210402 |