An air filtration device for a rammer engine

Abstract

The present invention relates to an air filtration device for a rammer engine, comprising a filtration box, an air inlet and an air outlet respectively arranged on both sides of the filtration box, and two partitions vertically arranged in the filtration box to divide the interior of the filtration box into a primary filtration chamber, a secondary filtration chamber and a tertiary filtration chamber; the primary filtration chamber includes a horizontal channel and a vertical channel; the outer end of the horizontal channel is communicated with the air inlet, and the inner end is blocked by one of the partitions; the vertical channel is vertically arranged along the partition, and the lower end is communicated with the end of the horizontal channel; at least one vertically arranged cyclone dust collector is arranged in the secondary filtration chamber; the suction port of the cyclone dust collector is communicated with the vertical channel, and the exhaust port is communicated with the tertiary filtration chamber; a filter element is arranged in the tertiary filtration chamber; the filter element is located between the exhaust port of the cyclone dust collector and the air outlet; by adopting a three-stage filtration structure, the present invention not only has good filtration effect, but also has the advantages of compact structure, convenient assembly and easy maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of rammers, and particularly refers to an air filtering device for a rammer engine. Background Art

[0002] A rammer is a machine for compacting the ground. During construction at a construction site, a large amount of dust will be generated. The power source of the rammer is mainly provided by a fuel engine, and the engine burns a mixture of air and fuel, so the requirement for air cleanliness is very high. If there are dust and other impurities in the air entering the engine, the cylinders of the engine will be quickly worn, shortening the service life of the engine.

[0003] For example, an air filter for a rammer engine and a rammer disclosed in the prior art 201921621411.7 have the following problems:

[0004] 1. Only a primary filtering part and a secondary filtering part are provided. The flow guiding member that makes the air flow in the air inlet rotate in the primary filtering part is a fan blade, and the spaces of the a channel and the b channel are limited, so that the air flow cannot rotate at a high speed, and dust and other impurities in the air flow cannot be effectively removed, resulting in poor filtering effect of the primary filtering part;

[0005] 2. Due to the poor filtering effect of the primary filtering part, the filter element in the secondary filtering part is easily blocked, and the filter element in the secondary filtering part needs to be frequently replaced, greatly increasing the maintenance cost;

[0006] 3. The secondary filtering part is provided with a first-stage filtering member and a second-stage filtering member, which not only greatly increases the manufacturing cost, but also makes the assembly more cumbersome, greatly reducing the production efficiency;

[0007] 4. The first-stage filtering member divides the chamber into an upper chamber and a lower chamber along the vertical direction, and the second-stage filtering member divides the lower chamber into an inner chamber and an outer chamber arranged inside and outside, resulting in a relatively large overall volume and being not conducive to miniaturization. Summary of the Invention

[0008] The purpose of the present invention is to provide an air filtering device for a rammer engine to overcome the deficiencies of the prior art.

[0009] To achieve the above purpose, the technical solution adopted by the present invention is: an air filtering device for a rammer engine, comprising a filtering box, an air inlet and an air outlet respectively arranged on both sides of the filtering box, and two partitions vertically arranged in the filtering box to divide the interior of the filtering box into a primary filtering chamber, a secondary filtering chamber and a tertiary filtering chamber;

[0010] The primary filtration chamber includes a horizontal channel and a vertical channel; the horizontal channel is horizontally placed, with its outer end communicating with the air inlet and its inner end blocked by one of the partitions; the vertical channel is vertically placed along the partition, and has a flat structure, and its lower end communicates with the inner end of the horizontal channel;

[0011] At least one vertically placed cyclone dust collector is provided in the secondary filtration chamber; the suction port of the cyclone dust collector communicates with the vertical channel, and the exhaust port communicates with the tertiary filtration chamber;

[0012] A filter element is provided in the tertiary filtration chamber; the filter element is located between the exhaust port and the air outlet of the cyclone dust collector.

[0013] Preferably, a primary dust collection chamber is provided below the horizontal channel of the primary filtration chamber; a dust discharge channel communicating with the primary dust collection chamber is provided along the partition at the inner end of the horizontal channel; a detachable primary dust collection box is provided in the primary dust collection chamber.

[0014] Preferably, the primary dust collection box is fixed in the primary dust collection chamber by a buckle.

[0015] Preferably, the bottom of the horizontal channel is inclined, and the inner end faces downward.

[0016] Preferably, an air inlet grille is provided at the air inlet.

[0017] Preferably, a secondary dust collection chamber is provided at the bottom of the cyclone dust collector in the secondary filtration chamber; the dust discharge hole at the bottom of the cyclone dust collector communicates with the secondary dust collection chamber; a detachable secondary dust collection box is provided in the secondary dust collection chamber.

[0018] Preferably, the secondary dust collection box is fixed in the secondary dust collection chamber by a buckle.

[0019] Preferably, the filter element is fixed in the tertiary filtration chamber by a buckle.

[0020] Preferably, the filter box includes a box body and a box cover; the primary filtration chamber, the secondary filtration chamber and the tertiary filtration chamber are arranged in the box body, and all have open tops; the box cover is fixed on the top of the box body by a buckle, and makes the secondary filtration chamber and the tertiary filtration chamber be hermetically connected.

[0021] Preferably, the filter box is provided with at least two mounting parts; connection holes are provided in the mounting parts.

[0022] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0023] 1. The present invention is provided with a three - stage filtration structure. First, the large - particle dust and other impurities in the air are preliminarily filtered through the first - stage filtration chamber. Then, the small - particle dust and other impurities in the air are further filtered through the second - stage filtration chamber. Finally, the dust and other impurities in the air are completely filtered through the third - stage filtration chamber, and the filtration effect is good.

[0024] 2. The present invention is provided with dust - collecting boxes in both the first - stage filtration chamber and the second - stage filtration chamber, which can collect the filtered dust and other impurities, avoid secondary inflow into the air, and improve air quality.

[0025] 3. In the present invention, the dust - collecting box, the filter element and the box cover are all fixed by buckles, which is convenient for maintenance.

[0026] 4. The present invention has the advantages of compact specific structure, convenient assembly, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The technical solution of the present invention will be further described below in conjunction with the drawings:

[0028] FIG Figure 1 is a schematic structural view of the air - filtering device for the impact ram engine according to the present invention;

[0029] FIG Figure 2 is a cross - sectional view of the impact ram engine according to the present invention

[0030] FIG Figure 3 is a schematic structural view of the present invention after removing the box cover.

[0031] Wherein: 1. Filter box; 11. Box body; 12. Box cover; 13. Installation part; 14. Connection hole; 2. Air inlet; 3. Air outlet; 4. Partition board; 5. First - stage filtration chamber; 51. Horizontal channel; 52. Vertical channel; 53. First - stage dust - collecting chamber; 54. Dust - discharging channel; 55. First - stage dust - collecting box; 6. Second - stage filtration chamber; 61. Cyclone dust collector; 62. Exhaust port; 63. Second - stage dust - collecting chamber; 64. Second - stage dust - collecting box; 7. Third - stage filtration chamber; 71. Filter element; 8. Air intake grille. DETAILED DESCRIPTION OF THE INVENTION

[0032] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0033] FIG Figures 1-3 is the air - filtering device for the impact ram engine according to the present invention, which includes a filter box 1, an air inlet 2 and an air outlet 3 respectively arranged on both sides of the filter box 1, and two partition boards 4 vertically arranged in the filter box 1 to divide the interior of the filter box 1 into a first - stage filtration chamber 5, a second - stage filtration chamber 6 and a third - stage filtration chamber 7;

[0034] The primary filtration chamber 5 includes a horizontal channel 51 and a vertical channel 52; the horizontal channel 51 is horizontally placed, with its outer end communicating with the air inlet 2 and its inner end blocked by one of the partition plates 4; the vertical channel 52 is vertically placed along the partition plate 4 and has a flat structure, and its lower end communicates with the inner end of the horizontal channel 51;

[0035] Two vertically placed cyclone dust collectors 61 are arranged in the secondary filtration chamber 6; the air inlet of the cyclone dust collector 61 communicates with the vertical channel 52, and the exhaust port 62 communicates with the tertiary filtration chamber 7;

[0036] A filter element 71 is arranged in the tertiary filtration chamber 7; the filter element 71 is located between the exhaust port 62 and the air outlet 3.

[0037] During operation: the air outlet 3 communicates with the air inlet of the engine, so that external air can continuously enter from the air inlet 2. Since the inner end of the horizontal channel 51 is blocked by the partition plate 4, the air carrying dust and other impurities will hit the partition plate 4. Among them, the large-particle dust and other impurities, due to their heavier weight, will fall along the partition plate 4 to achieve primary filtration. Then the remaining air carrying small-particle dust and other impurities enters the two cyclone dust collectors 61 respectively through the flat-structured vertical channel 52. A cyclone is formed by the cyclone dust collector 61, and the air carrying small-particle dust and other impurities is secondarily filtered by using the centrifugal force. Then the relatively clean air enters the tertiary filtration chamber 7 from the exhaust port 62 and is finally completely filtered by the filter element 71; among them, the air carrying dust and other impurities has filtered off more than 90% of the dust and other impurities after passing through the primary filtration chamber 5 and the secondary filtration chamber 6, which can greatly extend the service life of the filter element 71, reduce the replacement frequency of the filter element 71, and reduce the maintenance cost.

[0038] Further, a primary dust collection chamber 53 is arranged below the horizontal channel 51 in the primary filtration chamber 5; a dust discharge channel 54 communicating with the primary dust collection chamber 53 is arranged along the partition plate 4 at the inner end of the horizontal channel 51; a detachable primary dust collection box 55 is arranged in the primary dust collection chamber 53; during operation: the preliminarily filtered large-particle dust and other impurities automatically fall into the primary dust collection box 55 through the dust discharge channel 54 for collection, avoiding secondary inflow into the air and improving the air quality.

[0039] Further, the primary dust collection box 55 is fixed in the primary dust collection chamber 53 by a buckle, which is convenient for taking out the primary dust collection box 55, pouring out the collected dust and other impurities, and making the maintenance more convenient.

[0040] Further, the bottom of the horizontal channel 51 is inclined and the inner end is downward, which plays a guiding role and is convenient for the preliminarily filtered large-particle dust and other impurities to fall into the dust discharge channel 54.

[0041] Further, an air inlet grille 8 is arranged at the air inlet 2, which plays a protective role.

[0042] Further, a secondary dust collection chamber 63 is provided at the bottom of the cyclone dust collector 61 in the secondary filtration chamber 6; the dust discharge hole at the bottom of the cyclone dust collector 61 communicates with the secondary dust collection chamber 63; a detachable secondary dust collection box 64 is provided in the secondary dust collection chamber 63; during operation: small particle dust and other impurities filtered by the cyclone dust collector 61 automatically fall into the secondary dust collection box 64 for collection, preventing secondary inflow into the air and improving air quality.

[0043] Further, the secondary dust collection box 64 is fixed in the secondary dust collection chamber 63 by a buckle, facilitating the removal of the secondary dust collection box 64 to pour out the collected dust and other impurities, and making maintenance more convenient.

[0044] Further, the filter element 71 is fixed in the tertiary filtration chamber 7 by a buckle, facilitating the replacement of the filter element 71 and making maintenance more convenient.

[0045] Further, the filter box 1 includes a box body 11 and a box cover 12; the primary filtration chamber 5, the secondary filtration chamber 6, and the tertiary filtration chamber 7 are provided in the box body 11 and are all open at the top; the box cover 12 is fixed to the top of the box body 11 by a buckle and makes the secondary filtration chamber 6 and the tertiary filtration chamber 7 be hermetically connected; during operation: since the tops of the primary filtration chamber 5, the secondary filtration chamber 6, and the tertiary filtration chamber 7 are all open, it is convenient to install the cyclone dust collector 61 and the filter element 71, and the box cover 12 is fixed to the top of the box body 11 by a buckle, facilitating the maintenance of the cyclone dust collector 61 and the filter element 71, and the box cover 12 can make the secondary filtration chamber 6 and the tertiary filtration chamber 7 be hermetically connected after installation. When the engine sucks air, only the air can enter the tertiary filtration chamber 7 from the exhaust port 62 of the cyclone dust collector 61.

[0046] Further, the filter box 1 is provided with two mounting parts 13; connection holes 14 are provided in the mounting parts 13, facilitating installation on the frame of the rammer.

[0047] The above are only specific application examples of the present invention and do not constitute any limitation to the protection scope of the present invention. Any technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of the present invention's patent protection.

Claims

1. An air filtering device for a rammer engine, characterized in that: It includes a filtration box, an air inlet and an air outlet respectively arranged on both sides of the filtration box, and two partitions vertically arranged in the filtration box to divide the interior of the filtration box into a primary filtration chamber, a secondary filtration chamber and a tertiary filtration chamber; The primary filtration chamber includes a horizontal channel and a vertical channel; the horizontal channel is horizontally placed, with its outer end communicating with the air inlet and its inner end blocked by one of the partitions; the vertical channel is vertically placed along the partition and has a flat structure, and its lower end communicates with the inner end of the horizontal channel; a primary dust collection chamber is arranged below the horizontal channel in the primary filtration chamber; a dust discharge channel communicating with the primary dust collection chamber is arranged along the partition at the inner end of the horizontal channel; a detachable primary dust collection box is arranged in the primary dust collection chamber; the primary dust collection box is fixed in the primary dust collection chamber by a buckle; At least one vertically placed cyclone dust collector is arranged in the secondary filtration chamber; the suction port of the cyclone dust collector communicates with the vertical channel, and the exhaust port communicates with the tertiary filtration chamber; a secondary dust collection chamber is arranged at the bottom of the cyclone dust collector in the secondary filtration chamber; the dust discharge hole at the bottom of the cyclone dust collector communicates with the secondary dust collection chamber; a detachable secondary dust collection box is arranged in the secondary dust collection chamber; the secondary dust collection box is fixed in the secondary dust collection chamber by a buckle; A filter element is arranged in the tertiary filtration chamber; the filter element is located between the exhaust port of the cyclone dust collector and the air outlet; The filtration box includes a box body and a box cover; the primary filtration chamber, the secondary filtration chamber and the tertiary filtration chamber are arranged in the box body, and all are open at the top; the box cover is fixed on the top of the box body by a buckle, and makes the secondary filtration chamber and the tertiary filtration chamber be hermetically connected.

2. The air filtering device for the impact rammer engine according to claim 1, wherein: The bottom of the horizontal channel is inclined, and the inner end faces downward.

3. The air filtering device for a rammer engine according to claim 1 or 2, characterized in that: An air inlet grille is arranged at the air inlet.

4. The air filtration device for a rammer engine according to claim 3, wherein: The filtration box is provided with at least two mounting parts; connection holes are arranged in the mounting parts.

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