Oil bath type air filter for loader

Abstract

The utility model discloses an oil bath type air filter for a loading machine, and relates to the technical field of air filter devices, the inner side of a filter cover is sequentially provided with a baffle plate, a first filter layer, a baffle plate and a second filter layer from outside to inside, and the center of a filter body is provided with an air outlet pipe extending into the inner side of the filter cover; the baffle plate is a hollow frustum-shaped baffle plate, and the baffle plate is provided with a plurality of through holes. External air is sucked in from the air inlet and is in contact with an oil film in the oil storage chamber, particles and impurities are adsorbed by the oil film and then reach the baffle plate after being filtered by the first filter layer, and the air overflows from the through holes and flows downwards to be in contact with the oil film again after being blocked and baffled by the baffle plate and reaches the second filter layer after being adsorbed by the oil film for the second time. Finally, the filtered air is discharged from the air outlet pipe. The whole process is subjected to two-time oil bath and two-time filtering of the filtering layer, the filtering effect is good, impurities such as dust in the air are thoroughly filtered, and the service life of the loading machine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air filter devices, in particular to an oil bath type air filter for a loader. Background Art

[0002] Loaders are the dominant machines for port collection and distribution and transshipment loading operations. In addition, there are many types of dust-generating cargoes during port operations, which can easily have a significant impact on the service life of the engine of the operating equipment during normal operation. Therefore, it is often used to install an air filter before the engine intake to reduce the impact of impurities in the air on the engine.

[0003] Chinese patent CN104474797A discloses an oil bath air filter. The air passes through an oil filter and two layers of filter elements. Although it has a certain filtering effect, the filtering effect is not ideal, especially in an environment with a lot of dust, the effect is greatly reduced. Summary of the invention

[0004] The technical problem to be solved by the utility model is: aiming at the deficiencies in the prior art, to provide an oil bath type air filter for a loader, which has a good filtering effect on air.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] An oil bath air filter for a loader comprises a filter body and a filter cover, wherein an oil storage chamber is provided at the bottom of the filter body, a plurality of air inlets are provided in the circumferential direction of the filter cover, a baffle, a first filter layer, a baffle plate and a second filter layer are provided in sequence on the inner side of the filter cover from the outside to the inside, and an air outlet pipe extending into the inner side of the filter cover is provided at the center of the filter body;

[0007] The baffle is a hollow frustum-shaped baffle, and the baffle is provided with a plurality of through holes.

[0008] As an improved technical solution, a first fixing groove and a second fixing groove are respectively provided on the inner side of the top of the filter cover, and the first filter layer and the second filter layer are respectively adapted to the first fixing groove and the second fixing groove.

[0009] As an improved technical solution, the inner side of the lower end of the first filter layer abuts against the outer side of the lower end of the baffle.

[0010] As an improved technical solution, an oil drain hole penetrating the oil chamber is provided at the bottom of the filter body, and a wire plug is threadedly connected to the oil drain hole.

[0011] As an improved technical solution, a clamping groove with a U-shaped cross-section is cooperatively arranged on the outer side of the lower end of the filter cover and the outer side of the upper end of the filter body, and two semi-circular buckles are cooperatively arranged on the outer side of the clamping groove. Grooves adapted to the clamping groove are arranged on the inner sides of the two buckles;

[0012] Fixing seats are respectively arranged at both ends of the two buckles, and the corresponding fixing seats are fixedly connected by bolts.

[0013] As an improved technical solution, a first sealing groove is arranged on the upper end surface of the filter body facing downward, and a first clamping convex adapted to the first sealing groove is arranged on the lower end surface of the filter cover.

[0014] As a preferred technical solution, a second sealing groove is arranged on the inner side of the lower end of the filter cover, and a second clamping convex adapted to the second sealing groove is arranged on the inner side of the upper end of the filter body.

[0015] As a preferred technical solution, a third filter layer is arranged on the outer side of the baffle plate.

[0016] Due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] An oil bath air filter for a loader of the present utility model includes a filter body and a filter cover. An oil storage chamber is arranged at the bottom of the filter body. A plurality of air inlets are arranged circumferentially on the filter cover. A baffle plate, a first filter layer, a baffle plate and a second filter layer are sequentially arranged from outside to inside on the inner side of the filter cover. An air outlet pipe extending into the inner side of the filter cover is arranged at the center of the filter body; the baffle plate is a hollow frustum-shaped baffle plate, and a plurality of through holes are arranged on the baffle plate. External air is inhaled from the air inlet and contacts the oil film in the oil storage chamber. Particles and impurities are adsorbed by the oil film, and then reach the baffle plate after passing through the first filter layer. Under the blocking and deflection of the baffle plate, the air overflows from the through holes and flows downward to contact the oil film again. After being adsorbed by the oil film for the second time, it reaches the second filter layer, and finally the filtered air is discharged from the air outlet pipe. The whole process experiences two oil baths and two filter layer filtrations, with good filtering effect, thorough filtration of dust and other impurities in the air, and improvement of the service life of the loader.

[0018] A first fixing groove and a second fixing groove are respectively arranged on the inner side of the top of the filter cover of the present utility model. The first filter layer and the second filter layer respectively adapt to the first fixing groove and the second fixing groove. The first filter layer and the second filter layer can be disassembled, assembled and replaced conveniently, which is convenient to use and reduces the maintenance cost at the same time.

[0019] The inner side of the lower end of the first filter layer abuts against the outer side of the lower end of the baffle plate. Through the double extrusion of the first fixing groove and the baffle plate, the fixing effect of the first filter layer is better, and it is not easy to fall off during use.

[0020] A drain hole penetrating through the oil chamber is provided at the bottom of the filter body, and a plug is threadedly connected to the drain hole. It is convenient to discharge the collected water layer at the bottom of the filter body, and it is also convenient to discharge and replace the dirty oil, which is easy to use.

[0021] A U-shaped slot is cooperatively provided on the outer side of the lower end of the filter cover and the outer side of the upper end of the filter body. Two semi-circular buckle straps are cooperatively provided on the outer side of the slot. Grooves adapted to the slot are provided on the inner sides of the two buckle straps; fixing seats are respectively provided at both ends of the two buckle straps, and the corresponding fixing seats are fixedly connected by bolts. The grooves of the buckle straps can firmly fix the filter cover and the filter body together, and it is not easy to unfasten between the two.

[0022] A first sealing groove is provided on the upper end surface of the filter body facing downward, and a first convex card adapted to the first sealing groove is provided on the lower end surface of the filter cover. The first sealing groove and the first convex card make the sealing performance between the filter body and the filter cover better.

[0023] A second sealing groove is provided on the inner side of the lower end of the filter cover, and a second convex card adapted to the second sealing groove is provided on the inner side of the upper end of the filter body. The second sealing groove and the second convex card further strengthen the sealing effect between the filter body and the filter cover and prevent air from overflowing.

[0024] A third filter layer is provided on the outer side of the baffle plate to further enhance the filtering effect of the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0027] Figure 2 is a cross-sectional view of an embodiment of the present utility model;

[0028] Figure 3 is Figure 2 a schematic structural diagram of the filter cover in

[0029] Figure 4 is Figure 2 a schematic structural diagram of the filter body in

[0030] Figure 5 is Figure 2 a schematic structural diagram of the buckle strap in

[0031] Among them: 1. filter body; 2. filter cover; 3. oil storage chamber; 4. air inlet; 5. baffle; 6. first filter layer; 7. deflector; 8. second filter layer; 9. outlet pipe; 10. through hole; 11. first fixing groove; 12. second fixing groove; 13. oil drain hole; 14. thread plug; 15. slot; 16. buckle; 17. groove; 18. fixing seat; 19. first sealing groove; 20. first clamping protrusion; 21. second sealing groove; 22. second clamping protrusion. DETAILED DESCRIPTION

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

[0033] like Figure 1-5 As shown, an oil bath air filter for a loader includes a filter body 1 and a filter cover 2, wherein an oil storage chamber 3 is provided at the bottom of the filter body 1, and a plurality of air inlets 4 are circumferentially provided at the filter cover 2, and a baffle 5, a first filter layer 6, a baffle 7 and a second filter layer 8 are provided on the inner side of the filter cover 2 in sequence from the outside to the inside, and an air outlet pipe 9 extending into the inner side of the filter cover 2 is provided at the center of the filter body 1; the baffle 7 is a hollow frustum-shaped baffle 7 and its inner diameter gradually increases from top to bottom, and the baffle 7 is provided with a plurality of through holes 10, and the lower ends of the first filter layer 6, the baffle 7 and the second filter layer 8 all extend below the oil film of the oil storage chamber 3. Outside air is sucked in from the air inlet 4 and contacts the oil film in the oil storage chamber 3. Particles and impurities are adsorbed by the oil film, and then reach the baffle 7 after being filtered by the first filter layer 6. Under the blocking and deflection of the baffle 7, the air overflows from the through hole 10 and flows downward to contact the oil film again. After secondary adsorption by the oil film, it reaches the second filter layer 8, and finally the filtered air is discharged from the outlet pipe 9. The whole process undergoes two oil baths and two filter layer filtrations, with good filtering effect, and dust and other impurities in the air are thoroughly filtered, which increases the service life of the loader. The first filter layer 6 and the second filter layer 8 in this embodiment are both paper filter layers with low use cost.

[0034] The top inner side of the filter cover 2 is provided with a first fixing groove 11 and a second fixing groove 12, and the first filter layer 6 and the second filter layer 8 are respectively adapted to the first fixing groove 11 and the second fixing groove 12. The first filter layer 6 and the second filter layer 8 can be conveniently disassembled, assembled and replaced, which is convenient to use and reduces maintenance costs.

[0035] The inner side of the lower end of the first filter layer 6 abuts against the outer side of the lower end of the baffle 7. Through the double extrusion of the first fixing groove 11 and the baffle 7, the first filter layer 6 has a better fixing effect and is not easy to fall off during use.

[0036] A drain hole 13 penetrating the oil chamber is provided at the bottom of the filter body 1, and a plug 14 is threadedly connected to the drain hole 13. It is convenient to discharge the collected water layer at the bottom of the filter body 1, and it is also convenient to discharge and replace the dirty oil, which is easy to use.

[0037] A U-shaped card slot 15 is provided on the outer side of the lower end of the filter cover 2 and the outer side of the upper end of the filter body 1 in a matching manner. Two semi-circular buckle straps 16 are provided on the outer side of the card slot 15 in a matching manner. Grooves 17 adapted to the card slot 15 are provided on the inner sides of the two buckle straps 16; fixing seats 18 are provided at both ends of the two buckle straps 16 respectively, and the corresponding fixing seats 18 are fixedly connected by bolts. The grooves 17 of the buckle straps 16 can firmly fix the filter cover 2 and the filter body 1 together, and it is not easy to unhook between them.

[0038] A first sealing groove 19 is provided on the upper end surface of the filter body 1 facing downward, and a first convex card 20 adapted to the first sealing groove 19 is provided on the lower end surface of the filter cover 2. The first sealing groove 19 and the first convex card 20 make the sealing performance between the filter body 1 and the filter cover 2 better.

[0039] A second sealing groove 21 is provided on the inner side of the lower end of the filter cover 2, and a second convex card 22 adapted to the second sealing groove 21 is provided on the inner side of the upper end of the filter body 1. The second sealing groove 21 and the second convex card 22 further strengthen the sealing effect between the filter body 1 and the filter cover 2 and prevent air from overflowing.

[0040] A third filter layer is provided on the outer side of the baffle 7. In this embodiment, the third filter layer is attached to the outer side of the baffle 7, and the third filter layer is a paper filter layer, which further enhances the air filtering effect and has a lower cost.

[0041] It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. An oil bath air filter for a loader, comprising a filter body and a filter cover, characterized in that: A storage oil chamber is provided at the bottom of the filter body. A plurality of air inlets are circumferentially provided on the filter cover. Inside the filter cover, a baffle plate, a first filter layer, a baffle and a second filter layer are successively arranged from outside to inside. An air outlet pipe extending into the inside of the filter cover is provided at the center of the filter body; The baffle is a hollow frustum-shaped baffle, and the baffle is provided with a plurality of through holes.

2. The oil bath air filter for a loader according to claim 1, characterized in that: A first fixing groove and a second fixing groove are respectively provided on the inner side of the top of the filter cover, and the first filter layer and the second filter layer respectively match with the first fixing groove and the second fixing groove.

3. The oil bath air filter for a loader according to claim 1, characterized in that: The inner side of the lower end of the first filter layer abuts against the outer side of the lower end of the baffle.

4. The oil bath air filter for a loader according to claim 1, characterized in that: A drain hole penetrating through the oil chamber is provided at the bottom of the filter body, and a plug is threadedly connected to the drain hole.

5. The oil bath air filter for a loader according to claim 1, characterized in that: A clamping groove with a U-shaped cross section is cooperatively provided on the outer side of the lower end of the filter cover and the outer side of the upper end of the filter body. Two semi-circular buckles are cooperatively provided on the outer side of the clamping groove. Grooves adapted to the clamping groove are provided on the inner sides of the two buckles; Fixing seats are respectively provided at both ends of the two buckles, and the corresponding fixing seats are fixedly connected by bolts.

6. The oil bath air filter for a loader according to claim 1, characterized in that: A first sealing groove is provided downward on the upper end surface of the filter body, and a first convex is provided on the lower end surface of the filter cover and adapted to the first sealing groove.

7. The oil bath air filter for a loader according to claim 1, characterized in that: A second sealing groove is provided on the inner side of the lower end of the filter cover, and a second convex is provided on the inner side of the upper end of the filter body and adapted to the second sealing groove.

8. The oil bath air filter for a loader according to claim 1, characterized in that: A third filter layer is provided on the outer side of the baffle.

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