CN203614285U - Air filter of hydraulic excavator - Google Patents

Abstract

The utility model discloses an air filter of a hydraulic excavator. The air filter comprises an air prefilter (1), a wall-penetration pipe (2), a bolt I (3), a gasket I (4), a bolt II (31), a gasket II (41), a connection pipe (5), a direct-flow air filter (6), an integrated process tester mounting air hole (7), a hoop I (8), a hoop II (81), a hoop III (82), a hoop IV (83) and an air inlet pipe (9), wherein the air prefilter fixes the wall-penetration pipe through the hoop II; the wall-penetration pipe is fixed on an excavator cover plate through the bolt I and the gasket I; both the wall-penetration pipe and the connection pipe are fixed through the hoop I; the integrated process tester mounting air hole is additionally formed in the surface of the direct-flow air filter; the air inlet pipe is fixedly connected to an inlet of an engine turbosuperchager through the hoop IV. The air filter of the hydraulic excavator has the advantages of small mounting space, high filtering efficiency and high ash containing degree, is low in long-term maintenance cost and is suitable for engines in later stages of Tier4.

Description

The air-strainer of hydraulic shovel

Technical field

The utility model relates to a kind of air-strainer of hydraulic shovel.

Background technique

The performance of engine air filter is directly connected to life-span, power character and the Economy of motor, and the inflow noise to motor and emission smoke intensity also have material impact simultaneously, and particularly under medium-sized and heavy dust environment, impact is especially serious.According to statistics, excavator is relevant with air-strainer with the earlier period damage 70% of motor, and the maintenance period of air filter is shorter, both increased labourer's labor intensity, also increased maintenance expenses, and air filter easily damage under severe working environment, working life reduced.At present, hydraulic excavator engine air filter system main filter conventional on market is radial-flow type filter cleaner, has the shortcomings such as installing space is large, filter efficiency is low, appearance gray scale is low, thereby causes this type air filter maintenance period shorter, maintenance cost is higher, and is prohibited from using in the Tier4 stage.

Summary of the invention

The problem existing for above-mentioned prior art, the utility model provides a kind of air-strainer of hydraulic shovel, has that installing space is little, filter efficiency is high and hold gray scale high, and maintenance period is long, long-time maintenance cost is low, is applicable to the motor of Tier4 with after-stage.

To achieve these goals, the utility model is achieved through the following technical solutions: a kind of air-strainer of hydraulic shovel, comprise air prefilter, cross wall pipe, bolt I, packing ring I, bolt II, packing ring II, connecting tube, direct current type air-strainer, integrated form flow testing device is installed pore, clip I, clip II, clip III, clip IV and suction tude, air prefilter was fixed wall pipe by clip II, crossing wall pipe is fixed on excavator cover plate by bolt I and packing ring I, crossing wall pipe and connecting tube is all to fix by clip I, on direct current type air-strainer surface, install integrated form flow testing device additional pore is installed, direct current type air-strainer is fixed on excavator side plate by bolt II and packing ring II, direct current type air-strainer is connected and fixed suction tude by clip III, suction tude is connected and fixed turbocharger of motor import by clip IV.

Described connecting tube and the material of suction tude are ethylene-propylene-diene monomer sebific ducts.

Described wall pipe matter is excessively stainless steel.

Bulk of the present utility model is little, be allowed to be applicable to the motor of Tier4 with after-stage.This system adopts cascade filtration technological scheme, first enter prefilter with the ambient air of dust and impurity, after pre-flock filters, air enters direct current type air-strainer by crossing wall pipe and suction tude, direct current type air filter can make full use of straight line inlet air flow path, avoid the time of wasting in typical radial-flow type air filter internal diameter, extend filter cleaner working life, reduce air filter resistance, and direct current type air filter can be removed large particle dust and moisture and not stop up, can solve large-scale fragment, avoid dust to be brought in motor, the wearing and tearing of motor are effectively alleviated, better protection motor, can be used in medium-sized and heavy dust rugged environment.Therefore, this system has that installing space is little, filter efficiency is high, holds gray scale advantages of higher, and maintenance period is long, and long-time maintenance cost is low.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

In figure: 1, air prefilter, 2, cross wall pipe, 3, bolt I, 4, packing ring I, 31, bolt II, 41, packing ring II, 5, connecting tube, 6, direct current type air-strainer, 7, integrated form flow testing device installs pore, 8, clip I, 81, clip II, 82, clip III, 83, clip IV, 9, suction tude.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described further.

As shown in Figure 1, the air-strainer of this hydraulic shovel, comprise air prefilter 1, cross wall pipe 2, bolt I 3, packing ring I 4, bolt II 31, packing ring II 41, connecting tube 5, direct current type air-strainer 6, integrated form flow testing device is installed pore 7, clip I 8, clip II 81, clip III 82, clip IV 83 and suction tude 9, ambient air with dust and impurity enters through the grid of air prefilter 1, through stator blade, thick change flows to air, form rotating vortex, rotating vortex drives special rotor, make its generation tell rotation, dust and impurity are directly discharged air prefilter 1 by dust exhaust port like this, clean air enters direct current type air-strainer 6 by crossing wall pipe 2 and connecting tube 5, crossing wall pipe 2 is fixed on excavator cover plate by bolt I 3 and packing ring I 4, it is all fixing by clip I 8 crossing wall pipe 2 and connecting tube 5, the air that enters direct current type air-strainer 6 makes full use of flow path, optimized the time of wasting in common typical radial-flow type air-strainer, large particle dust and moisture are discharged by aggregation type dust expulsion valve, little dust is adsorbed by the filter core in filter cleaner, thereby extend filter cleaner working life and optimized flow resistance parameter, the radially filter cleaner appearance gray scale that compares is greatly improved, and direct current type air-strainer 6 arranges double-filtration, main filter and safety filter element, on direct current type air-strainer 6 surfaces, install integrated form flow testing device additional pore 7 is installed, user can the rapid evaluation situation relevant to air-flow, filter cleaner is maximized working life, reducing filter cleaner replaces and reduces overall maintaining cost, and direct current type air-strainer 6 is injection model composite structure, adopt durable dustless and flexible design, its working efficiency is improved, Safety performance is protected, direct current type air-strainer 6 is fixed on excavator side plate by bolt II 31 and packing ring II 41, direct current type air-strainer 6 is connected and fixed suction tude 9 by clip III 82, suction tude 9 is connected and fixed turbocharger of motor import by clip IV 83, enter turbocharger of motor import through direct current type filter cleaner 6 filtered airs through suction tude 9 like this, thereby under medium-sized and heavy dust, realize higher appearance gray scale and filter efficiency, realize longer maintenance period.

Claims (3)

1. an air-strainer for hydraulic shovel, comprises air prefilter (1), cross wall pipe (2), bolt I (3), packing ring I (4), bolt II (31), packing ring II (41), connecting tube (5), direct current type air-strainer (6), integrated form flow testing device is installed pore (7), clip I (8), clip II (81), clip III (82), clip IV (83) and suction tude (9), it is characterized in that, air prefilter (1) was fixed wall pipe (2) by clip II (81), crossing wall pipe (2) is fixed on excavator cover plate by bolt I (3) and packing ring I (4), it is all fixing by clip I (8) crossing wall pipe (2) and connecting tube (5), on direct current type air-strainer (6) surface, install integrated form flow testing device additional pore (7) is installed, direct current type air-strainer (6) is fixed on excavator side plate by bolt II (31) and packing ring II (41), direct current type air-strainer (6) is connected and fixed suction tude (9) by clip III (82), and suction tude (9) is connected and fixed turbocharger of motor import by clip IV (83).

2. the air-strainer of hydraulic shovel according to claim 1, is characterized in that, described connecting tube (5) and the material of suction tude (9) are ethylene-propylene-diene monomer sebific ducts.

3. the air-strainer of hydraulic shovel according to claim 1, is characterized in that, described wall pipe (2) material is excessively stainless steel.

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