Improved structure of air pre-filter of beam transporting vehicle
By designing the air previewer of the beam transport vehicle to transform the structure and using multiple centrifugal filtration and dust collection technology, the problem of the engine inhaling dust in the dry and sandy environment of the beam transport vehicle is solved, ensuring the cleanliness of the air and protecting the engine performance .
Patent Information
- Application Number
- CN202420018562.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-01-04
AI Technical Summary
When the beam truck works in a dry and windy environment, the engine air filter is prone to sucking in dust, affecting the engine power and damaging parts. The existing air previewer cannot completely isolate fine dust and impurities.
A modified structure of the beam transport vehicle air previewer is designed, including a connecting pipe, the first and second dust collector, a fan blade and a filtering net, and the cleanliness of the air is ensured through multiple centrifugation filtering and dust collection.
It effectively avoids fine dust and impurities entering the engine air filter element, protects engine performance and extends service life.
Smart Images
Figure CN222478828U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air prefilters, in particular to a modified structure of an air prefilter for a beam transport vehicle. Background Art
[0002] During road construction, due to the dry weather and strong wind and sand in some areas, the long-term operation of the beam transporter can easily cause the engine air filter to absorb dust, affecting the engine power, and will have a certain degree of impact on the engine parts. With the collective wisdom of everyone, two air pre-filters are installed in front of each engine air filter to filter the air entering the combustion chamber in advance and then enter the engine combustion chamber after filtering the air filter. This can greatly reduce the dust entering the combustion chamber. When used, it is found that the existing air filter is mostly a single pipeline with guide vanes and centrifugal wind wheels to generate centrifugal force. Although dust and debris are driven by the intake air flow and the rapidly rotating rotor is blown out to the special dust outlet, only clean air flows out from the outlet, but any relatively fine dust and impurities flow into the outlet side and cannot be completely isolated. Therefore, a beam transporter air pre-filter modification structure is needed to solve the above problems. Utility Model Content
[0003] The utility model aims to provide a modified structure of an air prefilter of a beam transport vehicle to solve the above-mentioned multiple defects caused by the prior art.
[0004] A modified structure of an air prefilter for a beam transporter, comprising a connecting pipe, wherein a first support plate and a second support plate parallel to each other are installed on the outer side wall of the connecting pipe, a plurality of pairs of first dust collectors and second dust collectors are installed on the first support plate and in an array along the axial direction of the connecting pipe, a first air outlet pipe extending into the interior of the first dust collector is installed on the second support plate, a guide fan blade is installed on the side wall of the first air outlet pipe located inside the first dust collector, one end of the first air outlet pipe is connected to the corresponding second dust collector, a second air outlet pipe extending into the interior of the second dust collector is installed on the upper end of the second dust collector, and one end of the second air outlet pipe is connected to the connecting pipe.
[0005] Preferably, a cap is installed on the upper end of the second support plate, a filter is installed between the first support plate and the second support plate, and a dust box is symmetrically installed on the lower side of the first support plate.
[0006] Preferably, the first air outlet pipe is arranged along the tangent direction of the cross-section circle of the second dust removal cylinder.
[0007] Preferably, the bottom side of the connecting pipe is mounted on the air intake pipe, and the air intake pipe is connected to the upper end of the rectangular mounting groove.
[0008] Preferably, the lower ends of the first dust removal cylinder and the second dust removal cylinder are both provided with a conical structure for increasing the centrifugal flow velocity.
[0009] The advantages of the utility model are: the utility model installs the mounting groove on the air inlet side of the existing beam transport vehicle air filter element, and the intake duct connected to the rear end of the air filter element draws air inward. At this time, the outside air enters the first dust collector after preliminary filtration through the filter screen, and the air rotates under the guidance of the guide fan blades to generate centrifugal force, so that the dust makes a spiral motion along the first dust collector under the action of the centrifugal force, and the dust gathers and falls into the dust collecting box from the lower end of the first dust collector for collection. The air after the second filtration enters the second dust collector from the first outlet pipe. Since the first outlet pipe is arranged tangentially along the cross-sectional circle of the second dust collector, the air collides with the inner wall when entering the second dust collector and spirally moves to complete the third filtration. Multiple filtrations can prevent fine dust and impurities from flowing into the air filter element and entering the intake duct connected to the rear end of the air filter element, thereby preventing dust from affecting the engine power. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0011] Figure 2 It is a schematic diagram of the structure of the cap, the filter screen and the interior of the installation slot of the utility model.
[0012] Figure 3 It is a schematic structural diagram of the assembly of the connecting pipe, the first supporting plate, the second supporting plate, the first dust removal cylinder and the second dust removal cylinder of the utility model.
[0013] Figure 4 It is a structural schematic diagram of a group of the first dust removal cylinder and the second dust removal cylinder assembled with a connecting pipe, a first support plate and a second support plate of the utility model.
[0014] Figure 5 It is a schematic diagram of the internal structure of the first dust removal cylinder and the second dust removal cylinder of the utility model.
[0015] Figure 6 It is a structural schematic diagram of the dust collecting box of the utility model.
[0016] Wherein: 1-connecting pipe; 2-first support plate; 3-second support plate; 4-first dust removal cylinder; 5-second dust removal
[0017] Dust cylinder; 6-first air outlet pipe; 7-fan blades; 8-second air outlet pipe; 9-cover cap; 10-filter screen; 11-dust collection box; 12-inlet pipe; 13-installation slot. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0019] like Figures 1 to 6 As shown, a modified structure of an air prefilter for a beam transporter comprises a connecting pipe 1, on the outer side wall of which a first supporting plate 2 and a second supporting plate 3 parallel to each other are installed, on the first supporting plate 2 and in an array along the axial direction of the connecting pipe 1 are installed a plurality of pairs of first dust collecting tubes 4 and second dust collecting tubes 5, on the first supporting plate 2 and in an array along the axial direction of the connecting pipe 1, on the second supporting plate 3 is installed a first air outlet pipe 6 extending into the interior of the first dust collecting tube 4, on the side wall of the first air outlet pipe 6 located inside the first dust collecting tube 4 is installed a guide fan blade 7, one end of the first air outlet pipe 6 is connected to the corresponding second dust collecting tube 5, the upper end of the second dust collecting tube 5 is installed with a second air outlet pipe 8 extending into the second dust collecting tube 5, and one end of the second air outlet pipe 8 is connected to the connecting pipe 1. The fan blades 7 are fixedly mounted on the side wall of the first air outlet pipe 6. The fan blades 7 can generate a rotating motion when air enters the first dust collecting cylinder 4. The rotating airflow moves from the circular cylinder along the walls of the first dust collecting cylinder 4 and the second dust collecting cylinder 5 from top to bottom in a spiral shape toward the bottom of the cone, forming a descending external rotating dust-containing airflow. The centrifugal force generated during the strong rotation process throws the dust particles with a density much greater than that of the gas toward the walls of the first dust collecting cylinder 4 and the second dust collecting cylinder 5. Once the dust particles come into contact with the walls of the first dust collecting cylinder 4 and the second dust collecting cylinder 5, they lose their inertia and are forced to move toward the inlet velocity. The momentum of the air flow and its own gravity fall along the wall and enter the dust collecting box 11; after reaching the bottom of the cone, the rotating downward airflow turns upward along the axial part of the first dust collecting cylinder 4 and the second dust collecting cylinder 5 to form an ascending inward rotating airflow, and is discharged from the first air outlet pipe 6 and the second air outlet pipe 8. The connection between the first support plate 2 and the second support plate 3 and the connecting pipe 1 is sealed, the connection between the first dust collecting cylinder 4 and the second dust collecting cylinder 5 and the first support plate 2 is sealed, and the connection between the first air outlet pipe 6 and the second dust collecting cylinder 5 and the second support plate 3 is sealed.
[0020] In this embodiment, a cap 9 is installed on the upper end of the second support plate 3, a filter screen 10 is installed between the first support plate 2 and the second support plate 3, and a dust box 11 is symmetrically installed on the lower side of the first support plate 2. A box cover is hinged on the lower side of the dust box 11, and the dust in the dust box 11 can be poured out by opening the box cover, which is convenient for daily cleaning.
[0021] In this embodiment, the first air outlet pipe 6 is arranged along the tangent direction of the cross-sectional circle of the second dust removal cylinder 5. The first air outlet pipe 6 is arranged along the tangent direction of the cross-sectional circle of the second dust removal cylinder 5, and generates a rotational motion when air enters the second dust removal cylinder 5.
[0022] In this embodiment, the bottom side of the connecting pipe 1 is installed on the air intake pipe 12 , and the air intake pipe 12 is connected to the upper end of the rectangular installation groove 13 .
[0023] In this embodiment, the lower ends of the first dust removal cylinder 4 and the second dust removal cylinder 5 are both provided with a conical structure for increasing the centrifugal flow velocity.
[0024] The working principle of the utility model is as follows: the device is installed on the air inlet side of the existing beam transport vehicle air filter through the installation groove 13, and the air intake pipe connected to the rear end of the air filter draws air inward. At this time, the outside air passes through the filter screen 10 for the first time and enters the first dust removal cylinder 4, and the air rotates under the guidance of the fan blades 7 to generate centrifugal force, so that the dust makes a spiral motion along the first dust removal cylinder 4 under the action of the centrifugal force, and the dust gathers and falls from the lower end of the first dust removal cylinder 4 into the dust collection box 11 for collection, and contacts the conical inner wall of the first dust removal cylinder 4 The clean air swirls upward and enters the second dust collection tube 5 from the first air outlet pipe 6. Since the first air outlet pipe 6 is arranged tangentially along the cross-sectional circle of the second dust collection tube 5, the air collides with the inner wall and spirally moves when entering the second dust collection tube 5. The dust gathers and falls into the dust collecting box 11 from the lower end of the second dust collection tube 5 for collection. The clean air that contacts the conical inner wall of the second dust collection tube 5 swirls upward and enters the connecting pipe 1 from the second air outlet pipe 8. Then the clean air enters the installation groove 13 through the air inlet pipe 12. Then the clean air passes through the air filter element and enters the air inlet duct. The utility model installs the mounting groove 13 on the air inlet side of the existing beam transport vehicle air filter element, and the air intake duct connected to the rear end of the air filter element draws air inward. At this time, the outside air enters the first dust removal tube 4 after preliminary filtration through the filter screen 10, and the air rotates under the guidance of the guide fan blades 7 to generate centrifugal force, so that the dust makes a spiral motion along the first dust removal tube 4 under the action of the centrifugal force, and the dust gathers and falls into the dust collecting box 11 from the lower end of the first dust removal tube 4 for collection. The air after the second filtration enters the second dust removal tube 5 from the first air outlet pipe 6. Since the first air outlet pipe 6 is arranged tangentially along the cross-sectional circle of the second dust removal tube 5, the air collides with the inner wall when entering the second dust removal tube 5 and spirally moves to complete the third filtration. Multiple filtrations can prevent fine dust and impurities from flowing into the air filter element and entering the air intake duct connected to the rear end of the air filter element, thereby preventing dust from affecting the engine power.
[0025] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.
Claims
1. A modified structure of an air prefilter for a beam transport vehicle, characterized in that: The invention comprises a connecting tube (1), wherein a first supporting plate (2) and a second supporting plate (3) which are parallel to each other are mounted on the outer side wall of the connecting tube (1), a plurality of pairs of first dust collecting tubes (4) and second dust collecting tubes (5) are mounted on the first supporting plate (2) and in an array along the axial direction of the connecting tube (1), a first air outlet pipe (6) which extends into the interior of the first dust collecting tube (4) is mounted on the second supporting plate (3), a fan guide blade (7) is mounted on the side wall of the first air outlet pipe (6) which is located inside the first dust collecting tube (4), one end of the first air outlet pipe (6) is connected to the corresponding second dust collecting tube (5), a second air outlet pipe (8) which extends into the interior of the second dust collecting tube (5) is mounted on the upper end of the second dust collecting tube (5), and one end of the second air outlet pipe (8) is connected to the interior of the connecting tube (1).
2. The modified structure of the air prefilter of the beam transport vehicle according to claim 1 is characterized in that: A cover cap (9) is installed on the upper end of the second support plate (3), a filter screen (10) is installed between the first support plate (2) and the second support plate (3), and a dust collection box (11) is symmetrically installed on the lower side of the first support plate (2).
3. The modified structure of the air prefilter of the beam transport vehicle according to claim 1 is characterized in that: The first air outlet pipe (6) is arranged along the tangent direction of the cross-sectional circle of the second dust removal cylinder (5).
4. The modified structure of the air prefilter of the beam transport vehicle according to claim 1 is characterized in that: The bottom side of the connecting pipe (1) is mounted on an air intake pipe (12), and the air intake pipe (12) is connected to the upper end of a rectangular mounting groove (13).
5. The modified structure of the air prefilter of the beam transport vehicle according to claim 1 is characterized in that: The lower ends of the first dust removal cylinder (4) and the second dust removal cylinder (5) are both provided with a conical structure for increasing the centrifugal flow rate.