CN209959314U

CN209959314U - Oil pan resonance sound absorption structure for harvester

Info

Publication number: CN209959314U
Application number: CN201920614238.1U
Authority: CN
Inventors: 高建成; 金满; 张素敏
Original assignee: ZHEJIANG HUATIAN MACHINERY CO Ltd
Current assignee: ZHEJIANG HUATIAN MACHINERY CO Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-17
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to an oil pan falls the technical field of making an uproar, and discloses an oil pan resonance sound absorption structure for harvester. This oil pan resonance sound absorption structure for harvester, including oil pan, batch oil tank, oil-out, oil pan seal ring, packing ring pilot hole, batch oil tank seal ring, batch oil tank mounting hole, batch oil tank mounting panel, oil pan mounting panel, lower hydraulic fluid port, micropunch board, slit board and perforated plate, the bottom fixed mounting of oil pan has the batch oil tank. The oil pan resonance sound absorption structure for the harvester adopts the resonance sound absorption structure through adopting the design of the oil storage tank, is one of main methods for sound absorption treatment, comprises a perforated plate, a slit plate, a micro-perforated plate and the like, and the sound absorption mechanisms of the perforated plate, the slit plate and the micro-perforated plate are Helmholtz resonators based on a parallel structure. The air in the resonant cavity and near the orifice vibrates back and forth with the sound waves. The resonance sound absorption structure not only can absorb vibration energy of the engine body through the resonance cavity, but also can improve the strength of the oil pan.

Description

Oil pan resonance sound absorption structure for harvester

Technical Field

The utility model relates to an oil pan sound absorption technical field specifically is an oil pan resonance sound absorption structure for harvester.

Background

With the development of science and technology and the continuous improvement of the quality of life of people, the requirements of people on the vibration, the noise and the comfort of agricultural machines are higher and higher. Therefore, research on vibration and noise of the internal combustion engine becomes a new research hotspot. Among the various components of an internal combustion engine, thin-walled structures such as an oil pan, a cylinder head cover, a gear chamber cover, and the like are major noise sources.

The oil pan is a structural member with the largest radiation area exposed outside the shielding shell of the agricultural machine, and the radiation noise of the oil pan can account for about 20% of the total radiation noise. Therefore, the radiation noise of the thin-wall part is reduced, and the overall noise of the engine is greatly reduced. The oil pan integrally formed by stamping the steel plate has the advantages of light weight, high strength and simple manufacturing process, and is widely applied to automobile engines. However, with the noise limitation of the vehicle power system, the structural design of the oil pan needs to be improved urgently to realize the vibration isolation of the oil pan. The effective method for improving the noise reduction performance of the oil pan is to improve the rigidity of the oil pan and reduce the surface vibration of the oil pan; the internal expansion chamber is designed to absorb vibrational energy by resonance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an oil pan resonance sound absorption structure for harvester possesses the good improvement oil pan rigidity of the performance of making an uproar of falling, reduces oil pan surface vibration advantage, has solved noise, the big problem of vibration that the oil pan that commonly uses produced.

The utility model provides a technical scheme that its technical problem adopted is: an oil pan resonance sound absorption structure for a harvester comprises an oil pan, an oil storage tank, an oil outlet, an oil pan sealing gasket, a gasket assembly hole, an oil storage tank sealing gasket, an oil storage tank mounting hole, an oil storage tank mounting plate, an oil pan mounting plate, a lower oil port, a micro-perforated plate, a slit plate and a perforated plate, wherein the oil storage tank is fixedly mounted at the bottom of the oil pan, the oil outlet is fixedly mounted at the right side of the oil storage tank, the oil pan mounting plate is fixedly mounted at the top of the oil pan, the oil pan sealing gasket is arranged at the top of the oil pan mounting plate, the gasket assembly hole is arranged inside the oil pan, the oil storage tank mounting hole is fixedly mounted at the bottom of the oil storage tank, the oil storage tank sealing gasket is arranged at the bottom of the oil pan sealing gasket, the inside fixed mounting of batch oil tank has the microperforated panel, the fixed surface of microperforated panel installs the slit board, the fixed surface of slit board installs the perforated panel.

Further, the oil pan and the oil storage tank are fixedly installed through an oil pan installation plate and an oil storage tank installation plate.

Further, a sealing cover is movably connected to the surface of the oil outlet.

Furthermore, a hole matched with the gasket assembling hole is formed in the oil pan mounting plate.

Furthermore, the inside of batch oil tank mounting panel is seted up the hole with batch oil tank seal ring looks adaptation.

Further, the interior of the oil storage tank is provided with a micro-perforated plate, a slit plate and a perforated plate, and the micro-perforated plate, the slit plate and the perforated plate are fixedly installed from inside to outside in sequence.

The utility model has the advantages that: 1. the oil pan resonance sound absorption structure for the harvester adopts the resonance sound absorption structure through adopting the design of the oil storage tank, is one of main methods for sound absorption treatment, comprises a perforated plate, a slit plate, a micro-perforated plate and the like, and the sound absorption mechanisms of the perforated plate, the slit plate and the micro-perforated plate are Helmholtz resonators based on a parallel structure. The air in the resonant cavity and near the orifice vibrates back and forth with the sound waves. Viscous damping and heat conduction cause energy losses as the air oscillates back and forth near the wall. The resonance sound absorption structure not only can absorb vibration energy of the engine body through the resonance cavity, but also can improve the strength of the oil pan. In addition, the sound absorption plate in the inner cavity of the oil pan can increase the heat dissipation area of engine oil, accelerate the cooling and heat dissipation of the engine oil, inhibit the fluctuation of the engine oil caused by the running vibration of the vehicle body and ensure the reliable work of the engine oil pump.

2. This oil pan resonance sound absorption structure for harvester, oil pan stamping forming technology can improve oil pan rigidity at oil pan surface design strengthening rib, can ensure that oil pan and organism and installation briquetting all do not have direct contact, and convenient assembling can effectively improve the performance of oil pan and fall the effect of making an uproar simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is the structure diagram of the oil pan sealing ring of the present invention.

Fig. 4 is the structural schematic diagram of the sealing ring of the oil storage tank of the present invention.

Description of reference numerals: the oil pan comprises a 1-oil pan, a 2-oil storage tank, a 3-oil outlet, a 4-oil pan sealing ring, a 5-gasket assembly hole, a 6-oil storage tank sealing ring, a 7-oil storage tank mounting hole, an 8-oil storage tank mounting plate, a 9-oil pan mounting plate, a 10-oil outlet, a 11-micro perforated plate, a 12-slit plate and a 13-perforated plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, an oil pan resonance sound absorption structure for a harvester comprises an oil pan 1, an oil storage tank 2, an oil outlet 3, an oil pan sealing washer 4, a washer assembling hole 5, an oil storage tank sealing washer 6, an oil storage tank mounting hole 7, an oil storage tank mounting plate 8, an oil pan mounting plate 9, a lower oil port 10, a micro-perforated plate 11, a slit plate 12 and a perforated plate 13, wherein the oil storage tank 2 is fixedly mounted at the bottom of the oil pan 1, the oil outlet 3 is fixedly mounted at the right side of the oil storage tank 2, a sealing cover is movably connected to the surface of the oil outlet 3, the oil pan mounting plate 9 is fixedly mounted at the top of the oil pan 1, a hole matched with the washer assembling hole 5 is formed in the oil pan mounting plate 9, the oil pan sealing washer 4 is arranged at the top of the oil pan mounting plate 4, the oil pan 1 and the oil storage tank 2 are fixedly installed through an oil pan installation plate 9 and an oil storage tank installation plate 8, an oil storage tank sealing washer 6 is arranged at the bottom of the oil storage tank installation plate 8, a hole matched with the oil storage tank sealing washer 6 is formed in the oil storage tank installation plate 8, an oil storage tank installation hole 7 is formed in the bottom of the oil storage tank sealing washer 6, a lower oil port 10 is formed between the oil pan 1 and the oil storage tank 2, a micro-perforated plate 11 is fixedly installed in the oil storage tank 2, a slit plate 12 is fixedly installed on the surface of the micro-perforated plate 11, a perforated plate 13 is fixedly installed on the surface of the slit plate 12, the micro-perforated plate 11, the slit plate 12 and the perforated plate 13 are sequentially and fixedly installed from inside to outside, the oil storage tank 2 is designed to adopt a resonance sound absorption structure, and the resonance sound absorption, Microperforated panels 11, etc., all of whose sound absorption mechanism is based on Helmholtz resonators in a parallel configuration. The air in the resonant cavity and near the orifice vibrates back and forth with the sound waves. Viscous damping and heat conduction cause energy losses as the air oscillates back and forth near the wall. The resonance sound absorption structure not only can absorb vibration energy of the engine body through the resonance cavity, but also can improve the strength of the oil pan. In addition, the sound absorption plate of the inner cavity of the oil storage tank 2 can also increase the heat dissipation area of engine oil, so that the cooling and heat dissipation of the engine oil are accelerated, the fluctuation of the engine oil caused by the running vibration of the vehicle body is inhibited, the reliable work of the engine oil pump is ensured, the rigidity of the oil pan can be improved by the stamping forming process of the oil pan 1 through the reinforcing ribs designed on the surface of the oil pan 1, the oil pan 1 can be ensured not to be in direct contact with a machine body and an installation pressing block, the assembling is convenient.

In use, the design of the resonance sound absorption structure by using the oil tank 2 is one of the main methods of sound absorption treatment, including the perforated plate 13, the slit plate 12, the micro-perforated plate 11, and the like, and the sound absorption mechanism thereof is based on the helmholtz resonator of the parallel structure. The air in the resonant cavity and near the orifice vibrates back and forth with the sound waves. Viscous damping and heat conduction cause energy losses as the air oscillates back and forth near the wall. The resonance sound absorption structure not only can absorb vibration energy of the engine body through the resonance cavity, but also can improve the strength of the oil pan. In addition, the sound absorption plate of the inner cavity of the oil storage tank 2 can also increase the heat dissipation area of engine oil, so that the cooling and heat dissipation of the engine oil are accelerated, the fluctuation of the engine oil caused by the running vibration of the vehicle body is inhibited, the reliable work of the engine oil pump is ensured, the rigidity of the oil pan can be improved by the stamping forming process of the oil pan 1 through the reinforcing ribs designed on the surface of the oil pan 1, the oil pan 1 can be ensured not to be in direct contact with a machine body and an installation pressing block, the assembling is convenient.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an oil pan resonance sound absorption structure for harvester, includes oil pan (1), batch oil tank (2), oil-out (3), oil pan seal ring (4), packing ring pilot hole (5), batch oil tank seal ring (6), batch oil tank mounting hole (7), batch oil tank mounting panel (8), oil pan mounting panel (9), hydraulic fluid port (10) down, micropunch plate (11), slit board (12) and perforated plate (13), its characterized in that: the oil pan is characterized in that an oil storage tank (2) is fixedly mounted at the bottom of the oil pan (1), an oil outlet (3) is fixedly mounted at the right side of the oil storage tank (2), an oil pan mounting plate (9) is fixedly mounted at the top of the oil pan (1), an oil pan sealing gasket (4) is arranged at the top of the oil pan mounting plate (9), a gasket assembly hole (5) is formed in the oil pan sealing gasket (4), an oil storage tank mounting plate (8) is fixedly mounted at the bottom of the oil storage tank (2), an oil storage tank sealing gasket (6) is arranged at the bottom of the oil pan mounting plate (8), an oil storage tank mounting hole (7) is formed in the bottom of the oil storage tank sealing gasket (6), a lower oil port (10) is formed between the oil pan (1) and the oil storage tank (2), and, the surface fixed mounting of microperforated panel (11) has slit board (12), the fixed surface mounting perforated panel (13) of slit board (12).

2. The harvester oil pan resonance sound absorption structure as set forth in claim 1, wherein: the oil pan (1) and the oil storage tank (2) are fixedly installed through an oil pan installation plate (9) and an oil storage tank installation plate (8).

3. The harvester oil pan resonance sound absorption structure as set forth in claim 1, wherein: the surface of the oil outlet (3) is movably connected with a sealing cover.

4. The harvester oil pan resonance sound absorption structure as set forth in claim 1, wherein: and a hole matched with the gasket assembly hole (5) is formed in the oil pan mounting plate (9).

5. The harvester oil pan resonance sound absorption structure as set forth in claim 1, wherein: and a hole matched with the oil storage tank sealing gasket (6) is formed in the oil storage tank mounting plate (8).

6. The harvester oil pan resonance sound absorption structure as set forth in claim 1, wherein: the interior of the oil storage tank (2) is provided with a micro-perforated plate (11), a slit plate (12) and a perforated plate (13), and the micro-perforated plate, the slit plate and the perforated plate are fixedly installed from inside to outside in sequence.