A bulldozer

Abstract

The utility model is suitable for bulldozer technical field provides a kind of bulldozer, including backflushing component, the lower portion of backflushing component is equipped with the connecting pipe of installation arrangement, the lower portion of connecting pipe is provided with two-stage filtering component, backflushing component includes air pump, the side of air pump is fixed with backflushing air filter, one end of backflushing air filter is connected with connecting pipe, two-stage filtering component includes two-stage air filter, filter dust in air by setting backflushing air filter, control air pump to carry out backflushing to filter screen in backflushing air filter, dust on backflushing air filter screen is discharged by filter screen, filtered air enters two-stage air filter by air inlet, two-stage air filter carries out second filtration to filtered air, second filtered air enters the air intake system of bulldozer by air outlet, reaches the effect that dust in filter can be discharged, and entering air is more pure by twice filtration.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and more specifically, it relates to a bulldozer. Background Technology

[0002] Air filters are mainly used in pneumatic machinery, internal combustion machinery and other fields. Their function is to provide clean air for these machines to prevent them from inhaling air containing impurities during operation, which would increase the chance of wear and damage. The main components of an air filter are the filter element and the housing. The filter element is the main filtration part, while the housing is the external structure that provides necessary protection for the filter element.

[0003] Currently, the simplest air filtration methods for bulldozers on the market include using a rain cap in conjunction with an air filter. The rain cap is fixed above the air filter to block larger dust particles. The mainstream and more commonly used air filtration method is to combine a pre-filter and an air filter. The pre-filter is located outside the engine compartment, and the air filter is located inside the engine compartment. The air is first filtered by the pre-filter and then filtered by the air filter.

[0004] However, while the rain cap method is simple in structure, the lack of a pre-filter means that all dust in the air intake system during bulldozer operation is filtered and intercepted by the air filter, which leads to a shortened maintenance cycle of the air filter element and the need for frequent cleaning or replacement of the filter element. Although the combination of a pre-filter and an air filter can deal with a certain amount of dust, it still requires frequent manual cleaning.

[0005] Therefore, in view of the above problems, this utility model proposes a bulldozer. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bulldozer.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A bulldozer includes a backflush assembly, a secondary filter assembly, and a connecting pipe connecting the backflush assembly and the secondary filter assembly. The backflush assembly includes an air pump and a backflush air filter disposed on one side of the air pump. One end of the backflush air filter is connected to the connecting pipe. The secondary filter assembly includes a secondary air filter with an air inlet and an air outlet respectively installed on it. The other end of the connecting pipe is connected to the air inlet.

[0008] The present invention is further configured such that: the backflush assembly also includes a backflush bracket, and the backflush air filter and the air pump are both mounted on the backflush bracket.

[0009] The present invention is further configured to include a fixing component, the fixing component including a fixing bracket, the fixing bracket having fixing holes, and support plates fixedly installed on both sides below the fixing bracket.

[0010] The present invention is further configured such that: the backflush bracket is fixed above the fixed bracket, and the position of the backflush air filter is aligned with the position of the fixed hole.

[0011] The present invention is further configured to include a cover plate assembly, the cover plate assembly including a cover plate body, the cover plate body having a connection hole, and the backflushing assembly being disposed above the connection hole.

[0012] The present invention is further configured such that: the fixing bracket is fixed on the upper surface of the cover plate body, and the fixing hole is aligned with the connecting hole.

[0013] The present invention is further configured such that: the secondary filter assembly also includes a mounting bracket, and a stabilizing mounting strip is symmetrically arranged above the mounting bracket, the stabilizing mounting strip being arc-shaped.

[0014] The present invention is further configured such that: the secondary air filter is fixed on the mounting bracket, and the two stabilizing mounting strips are fixed to the outer wall of the secondary air filter.

[0015] The present invention is further configured such that: after the connecting pipe is connected to the backflush air filter, it passes through the fixing hole and the connecting hole and is then connected to the air inlet.

[0016] In summary, this application includes at least one of the following beneficial technical effects: By setting up a backflush air filter to filter dust in the air, and controlling the air pump to backflush the filter screen inside the backflush air filter, the dust on the filter screen is discharged through the filter screen. The filtered air enters the secondary air filter through the air inlet, and the secondary air filter filters the filtered air a second time. The air filtered a second time enters the bulldozer's air intake system through the air outlet. This achieves the effect of expelling dust from the filter and making the incoming air purer through two filtrations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a bulldozer according to the present invention.

[0018] Figure 2 for Figure 1 A schematic diagram of the explosion structure.

[0019] Figure 3 for Figure 1 A schematic diagram showing the fit between the fixing component and the cover plate component.

[0020] Figure 4 for Figure 1 A schematic diagram of the mating structure of the backflush assembly and the cover plate assembly.

[0021] Figure 5 for Figure 4 A schematic diagram of the airflow direction of the backflush assembly.

[0022] Explanation of reference numerals in the attached diagram: 1. Backflush assembly; 11. Backflush bracket; 12. Backflush air filter; 13. Air pump; 2. Fixing components; 21. Fixing bracket; 22. Fixing holes; 23. Support plate; 3. Cover plate assembly; 31. Cover plate body; 32. Connecting hole; 4. Secondary filter assembly; 41. Mounting bracket; 42. Secure mounting strip; 43. Secondary air filter; 44. Air inlet; 45. Air outlet; 5. Connecting pipe. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] Please see Figure 1-5 The present invention provides the following technical solution: To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] See Figure 1 and Figure 2 A bulldozer includes a backflush assembly 1, a connecting pipe 5 installed below the backflush assembly 1, and a secondary filter assembly 4 installed below the connecting pipe 5.

[0027] During the operation of the bulldozer, air needs to be intake. The backflush assembly 1 blocks dust in the air during the air intake process. The secondary filter assembly 4 connects the backflush assembly 1 and the secondary filter assembly 4. The air filtered by the backflush assembly 1 is transported to the secondary filter assembly 4 through the connecting pipe 5 for a second filtration, so as to ensure the air quality to the greatest extent.

[0028] The backflush assembly 1 includes an air pump 13, a backflush air filter 12 is fixed on one side of the air pump 13, one end of the backflush air filter 12 is connected to the connecting pipe 5, and the secondary filter assembly 4 includes a secondary air filter 43, an air inlet 44 and an air outlet 45 are respectively installed on the secondary air filter 43, and the other end of the connecting pipe 5 is connected to the air inlet 44.

[0029] The air pump 13 is connected to a control harness and a power harness. The control harness controls the air pump 13 to power it on and inflate it. The power harness provides power for the backflush function of the air pump 13. The air pump 13 backflushes the dust in the backflush air filter 12. The backflush air filter 12 filters the dust in the air. When the bulldozer's air intake system starts to intake air, the backflush air filter 12 absorbs air, and the dust in the air stays on the filter screen of the backflush air filter 12. At this time, the air pump 13 can be controlled to backflush the filter screen of the backflush air filter 12 to discharge the dust on the filter screen of the backflush air filter 12.

[0030] When the air filtered by the backflush air filter 12 enters the secondary filter assembly 4 through the connecting pipe 5, the filtered air enters the secondary air filter 43 through the air inlet 44. The secondary air filter 43 performs a second filtration on the filtered air, and the second filtered air enters the bulldozer's intake system through the air outlet 45.

[0031] See Figure 5 By setting up a backflush air filter 12 to filter dust in the air, and controlling the air pump 13 to backflush the filter screen inside the backflush air filter 12, the dust on the filter screen of the backflush air filter 12 is discharged through the filter screen. The filtered air enters the secondary air filter 43 through the air inlet 44. The secondary air filter 43 performs a second filtration on the filtered air. The second filtered air enters the intake system of the bulldozer through the air outlet 45. This achieves the effect of expelling dust from the filter and making the incoming air purer through two filtrations.

[0032] See Figure 4 The backflush assembly 1 also includes a backflush bracket 11, on which the backflush air filter 12 and the air pump 13 are mounted.

[0033] The backflush bracket 11 is used to fix and install the backflush air filter 12 and the air pump 13. The backflush air filter 12 is fixed on the backflush bracket 11 to filter the air intake. The air pump 13 is fixed on the backflush bracket 11 to provide kinetic energy for the operation of the backflush air filter 12. The backflush air filter 12 and the air pump 13 are installed on the backflush bracket 11 to prevent them from falling off during operation.

[0034] The device includes a fixing component 2, which includes a fixing bracket 21. The fixing bracket 21 has fixing holes 22. Support plates 23 are fixedly installed on both sides below the fixing bracket 21. The backflush bracket 11 is fixed above the fixing bracket 21. The position of the backflush air filter 12 is aligned with the position of the fixing holes 22.

[0035] The fixed component 2 is connected to the fixed backflush bracket 11. The fixed bracket 21 is fixedly connected to the backflush bracket 11. The fixed hole 22 provides an installation position for the connecting pipe 5, which facilitates the connection of the backflush component 1 and the secondary filter component 4. The two support plates 23 make the support of the fixed bracket 21 more stable, and prevent the backflush component 1 from shaking due to the instability of the fixed component 2 when it is installed on the fixed component 2, so that the backflush component 1 is installed more stably.

[0036] See Figure 3 The cover plate assembly 3 includes a cover plate body 31, a connection hole 32 is provided on the cover plate body 31, a backflushing assembly 1 is provided above the connection hole 32, and a fixing bracket 21 is fixed on the upper surface of the cover plate body 31. The fixing hole 22 is aligned with the connection hole 32.

[0037] The cover plate body 31 is the cover plate of the bulldozer. The fixing component 2 is fixed on the cover plate body 31. By setting the shape of the fixing bracket 21, the fixing component 2 is made to match the slope of the cover plate body 31. The fixing hole 22 and the connecting hole 32 are matched to facilitate the connection of the connecting pipe 5.

[0038] The secondary filter assembly 4 also includes a mounting bracket 41. A stabilizing mounting strip 42 is symmetrically arranged above the mounting bracket 41. The stabilizing mounting strip 42 is arc-shaped. The secondary air filter 43 is fixed on the mounting bracket 41, and the two stabilizing mounting strips 42 are fixed to the outer wall of the secondary air filter 43.

[0039] The mounting bracket 41 is fixed inside the bulldozer. The arc shape of the mounting strip 42 fits the outer wall shape of the secondary air filter 43, fixing the position of the secondary air filter 43 and preventing the secondary air filter 43 from rolling and causing unstable fixing.

[0040] After the connecting pipe 5 is connected to the backflush air filter 12, it passes through the fixing hole 22 and the connecting hole 32 and then connects to the air inlet 44.

[0041] The connecting pipe 5 delivers the air filtered for the first time in the backflush air filter 12 to the air inlet 44 for a second filtration, so that the air entering the bulldozer's intake system contains fewer impurities.

[0042] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A bulldozer, characterized in that: The assembly includes a backflush assembly (1), a secondary filter assembly (4), and a connecting pipe (5) connecting the backflush assembly (1) and the secondary filter assembly (4). The backflush assembly (1) includes an air pump (13) and a backflush air filter (12) disposed on one side of the air pump (13). One end of the backflush air filter (12) is connected to the connecting pipe (5). The secondary filter assembly (4) includes a secondary air filter (43). An air inlet (44) and an air outlet (45) are respectively installed on the secondary air filter (43). The other end of the connecting pipe (5) is connected to the air inlet (44).

2. A bulldozer according to claim 1, characterized in that: The backflush assembly (1) also includes a backflush bracket (11), on which the backflush air filter (12) and the air pump (13) are both mounted.

3. A bulldozer according to claim 2, characterized in that: The device includes a fixing component (2), which includes a fixing bracket (21), a fixing hole (22) on the fixing bracket (21), and a support plate (23) fixedly installed on both sides below the fixing bracket (21).

4. A bulldozer according to claim 3, characterized in that: The backflush bracket (11) is fixed above the fixed bracket (21), and the position of the backflush air filter (12) is aligned with the position of the fixed hole (22).

5. A bulldozer according to claim 3, characterized in that: The cover plate assembly (3) includes a cover plate body (31) with a connection hole (32) on the cover plate body (31) and the backflush assembly (1) is disposed above the connection hole (32).

6. A bulldozer according to claim 5, characterized in that: The fixing bracket (21) is fixed on the upper surface of the cover plate body (31), and the fixing hole (22) is aligned with the connecting hole (32).

7. A bulldozer according to claim 1, characterized in that: The secondary filter assembly (4) also includes a mounting bracket (41), and a stabilizing mounting strip (42) is symmetrically arranged above the mounting bracket (41). The stabilizing mounting strip (42) is arc-shaped.

8. A bulldozer according to claim 7, characterized in that: The secondary air filter (43) is fixed on the mounting bracket (41), and the two stabilizing mounting strips (42) are fixed to the outer wall of the secondary air filter (43).

9. A bulldozer according to claim 6, characterized in that: After the connecting pipe (5) is connected to the backflush air filter (12), it passes through the fixing hole (22) and the connecting hole (32) and then connects to the air inlet (44).

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