CN112594360A - Ventilation structure of gear box and motorcycle - Google Patents

Abstract

The invention discloses a ventilation structure of a gear box and a motorcycle, comprising: a gear box provided with a breather pipe; the ventilation box is fixed at the lateral surface of air filter, and the ventilation box is connected with the apron, is formed with the blind chamber between ventilation box and the apron, and the right-hand member of ventilation box is provided with the blow vent in the blind chamber of intercommunication, and the left end of ventilation box is provided with the mouthpiece in the blind chamber of intercommunication, and the tip connection mouthpiece of breather pipe, the ventilation box are provided with the first baffle that is located the blind chamber, and the upper end of first baffle is connected in the top inner wall in blind chamber, forms the gap between the lower extreme of first baffle and the bottom inner wall in blind chamber. Arrange first baffle in the blind chamber, the air that gets into the blind chamber from the blow vent must bypass first baffle, passes through from the gap of first baffle downside, utilizes first baffle to block dust and water in the air and gets into the gear box through the blow vent, and the blind chamber is mutually independent with the inner chamber of empty filter moreover, has eliminated the machine oil in the gear box and has been sucked the hidden danger to empty filter, guarantees gear box steady operation.

Description

Ventilation structure of gear box and motorcycle

Technical Field

The invention relates to the technical field of motorcycles, in particular to a ventilation structure of a gear box and a motorcycle applying the ventilation structure.

Background

The transmission gear box of motorcycle engine usually has breather pipe, can be with its interior oil gas that gives off because of the engine oil temperature rise discharge, maintain the normal of the atmospheric pressure in the gear box. The breather pipe is generally directly communicated with the atmosphere, the breather pipe of a part of vehicle types is communicated with a dirty cavity or a clean cavity of the air filter to prevent muddy water from entering the gear box from the breather pipe, and the engine inhales through the air filter to assist combustion, so that the internal pressure of the air filter is reduced to form negative pressure when the engine inhales, and the condition that the engine oil in the gear box is sucked out due to the negative pressure is caused, so that the consumption of the engine oil in the gear box is increased, and the normal work of.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the ventilation structure of the gear box, which can prevent muddy water from entering the gear box from the ventilation pipe and eliminate the hidden trouble that engine oil in the gear box is sucked out.

The invention also provides a motorcycle with the ventilation structure.

According to an embodiment of the first aspect of the invention, a ventilation structure of a gear box includes: a gear box provided with a breather pipe; the ventilation box is fixed on the outer side surface of the air filter and is connected with the cover plate, a blind cavity is formed between the ventilation box and the cover plate, a ventilation port communicated with the blind cavity is formed in the right end of the ventilation box, a nozzle communicated with the blind cavity is formed in the left end of the ventilation box, the end of the ventilation pipe is connected with the nozzle, the ventilation box is provided with a first baffle located in the blind cavity, the upper end of the first baffle is connected to the inner wall of the top of the blind cavity, and a gap is formed between the lower end of the first baffle and the inner wall of the bottom of the blind cavity.

The ventilation structure of the gear box provided by the embodiment of the invention has at least the following beneficial effects: the breather pipe of gear box passes through the blind chamber of mouthpiece intercommunication, arranges first baffle in the blind chamber, and the air that gets into the blind chamber from the blow vent must bypass first baffle, passes through from the gap of first baffle downside, utilizes first baffle to block dust and water in the air and gets into the gear box through the breather pipe, and the blind chamber is independent each other with the inner chamber of empty filter moreover, has eliminated the machine oil in the gear box and has been sucked the hidden danger to empty filter, guarantees the gear box steady operation.

According to some embodiments of the first aspect of the present invention, the air filter is located above the gear box, and the aeration box is located on a lower side of the air filter facing the gear box.

According to some embodiments of the first aspect of the present invention, the vent box is arranged obliquely with a left end higher than a right end of the vent box.

According to some embodiments of the first aspect of the present invention, the air filter is provided with a recessed area, and the venting box is located in the recessed area.

According to some embodiments of the first aspect of the present invention, the air filter is provided with a side panel located at a right side of the vent box with a gap therebetween.

According to some embodiments of the first aspect of the present invention, the inner bottom wall of the blind cavity is arranged as a plane, and the inner bottom wall of the blind cavity is higher at the left end than at the right end.

According to some embodiments of the first aspect of the present invention, the vent pipe is sleeved outside the nozzle, and the vent pipe and the nozzle are in an interference fit.

According to some embodiments of the first aspect of the present invention, the cover plate is removably connected to the ventilation box.

According to some embodiments of the first aspect of the present invention, the cover plate is provided with a sealing skirt surrounding the blind cavity, and the vent box is provided with a sealing groove that fits the sealing skirt.

According to the motorcycle of the second aspect of the invention, the ventilation structure of the gear box is provided, and the ventilation structure can prevent muddy water from entering the gear box from the ventilation pipe and eliminate the hidden trouble that engine oil in the gear box is sucked out.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a venting structure according to some embodiments of the first aspect of the present invention;

fig. 2 is an exploded schematic view of a venting structure according to some embodiments of the first aspect of the present invention;

fig. 3 is a partially enlarged view of fig. 2.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or state relationship referred to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or state relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 3, some embodiments of a first aspect of the present invention provide a breather structure for a gearbox, comprising: the gearbox 100 and fix the box 300 of ventilating at the outside of air cleaner 200, the box 300 of ventilating can be solitary part, it can also be that the box 300 of ventilating is integrated into one piece at the outside of air cleaner 200, the gearbox 100 is provided with breather pipe 110 for the intercommunication external world, the box 300 of ventilating is connected with apron 400, be formed with blind chamber 310 between box 300 of ventilating and the apron 400, the left end of the box 300 of ventilating is provided with the nozzle 330 that communicates blind chamber 310, the tip of breather pipe 110 connects nozzle 330, the right-hand member of the box 300 of ventilating is provided with the vent 320 that communicates blind chamber 310, from vent 320, blind chamber 310, nozzle 330 to breather pipe 110 constitution ventilation passageway, reach the purpose of the inside ventilation of gearbox 100. In order to prevent dust and water in the outside air from entering the gearbox 100, the ventilation box 300 is provided with a first baffle 340 positioned in the blind cavity 310, the first baffle 340 is vertical, the first baffle 340 extends downwards from the inner wall of the top of the blind cavity 310, a gap is formed between the lower end of the first baffle 340 and the inner wall of the bottom of the blind cavity 310, the first baffle 340 is close to the nozzle 330, the air entering from the air vent 320 is blocked by the first baffle 340 to form a rotary air flow, so that the dust and the water in the air flow fall off due to the action of gravity, and other air passes through the gap to enter the ventilation pipe 110 and the gearbox 100, thereby achieving the purposes of dust removal and water removal; in addition, the blind cavity 310 is arranged outside the air filter 200, and the blind cavity 310 is not communicated with the inner cavity of the air filter 200, so that compared with the mode of communicating with the inside of the air filter in the prior art, the hidden trouble that the engine oil in the gearbox 100 is sucked out of the air filter 200 is eliminated, the engine oil of the gearbox 100 is prevented from being consumed too fast, and the stable operation of the gearbox 100 is ensured.

Referring to fig. 1, according to some embodiments of the first aspect of the present invention, the air filter 200 is located above the gear box 100, and the vent box 300 is located on the lower side of the air filter 200 facing the gear box 100, that is, the vent 320 of the vent box 300 is located between the air filter 200 and the gear box 100, so that muddy water brought up by the motorcycle during driving can be blocked by the gear box 100 and the air filter 200, and the probability of the muddy water entering the vent 320 can be reduced.

Referring to fig. 3, according to some embodiments of the first aspect of the present invention, the venting cartridge 300 is arranged in an inclined manner, with the left end provided with the nozzle 330 higher than the right end provided with the vent 320, to promote the fall of dust and water by using a height difference, and to reduce the probability of dust and water entering the gearbox 100 through the nozzle 330.

Referring to fig. 3, according to some embodiments of the first aspect of the present invention, the bottom inner wall of the venting cartridge 300 is a plane that is obliquely arranged, and the left end where the nozzle 330 is located is higher than the right end where the venting port 320 is located. Water is facilitated to flow away along the bottom inner wall of breather box 300, reducing the chance of water entering gearbox 100.

Referring to fig. 1, according to some embodiments of the first aspect of the present invention, air filter 200 is provided with a recessed area in which vent box 300 is located, and cover plate 400 is substantially flush with the surface of air filter 200 after installation, thereby reducing the chance of collision between vent box 300 and cover plate 400 and providing greater reliability and durability.

Referring to fig. 2 and 3, according to some embodiments of the first aspect of the present invention, the air cleaner 200 is provided with the edge panel 210 positioned at the right side of the vent box 300, the edge panel 210 being positioned in front of the vent hole 320 with a gap between the vent hole 320 and the edge panel 210 in the driving direction of the motorcycle. On one hand, the side panel 210 can be used for shielding the air vent 320, so that the pressure of the direct wind blowing to the air vent 320 during driving is reduced, the direct dust entering the blind cavity 310 is reduced, and rainwater and sediment are prevented from being blown into the pipeline 110 and even the gearbox 100; on the other hand, the edge panel 210 helps the water from the car wash to flow away quickly, reducing the chance of water entering the blind cavity 310.

Referring to fig. 1, according to some embodiments of the first aspect of the present invention, the air pipe 110 is sleeved outside the nozzle 330, the air pipe 110 and the nozzle 330 are in an interference fit, and the assembled air pipe 110 has a stable structure and is reliable and durable.

Referring to fig. 2, according to some embodiments of the first aspect of the present invention, the cover plate 400 is removably connected to the vent cartridge 300. Through dismantling apron 400, can observe the cleanliness factor in blind chamber 310 and clear up dust debris, keep blind chamber 310 clean, be favorable to reducing the dust and the water that get into breather pipe 110.

Referring to fig. 2, according to some embodiments of the first aspect of the present invention, the cover plate 400 is provided with a sealing rim (not shown) surrounding the blind cavity 310, and the vent box 300 is provided with a sealing groove 350 matching with the sealing rim, and the sealing rim is inserted into the sealing groove 350, so that the cover plate 400 is fixedly connected and sealed with the vent box 300, and water is prevented from permeating from the connection between the cover plate 400 and the vent box 300.

The motorcycle according to the second aspect of the present invention includes the ventilation structure of the gear box 100 as in the first aspect of the present invention, which can prevent the muddy water from entering the gear box 100 from the ventilation pipe 110 and eliminate the hidden trouble that the engine oil in the gear box 100 is sucked out.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.

Claims (10)

1. A breather structure for a gear case, comprising:

a gear box provided with a breather pipe;

the ventilation box is fixed on the outer side surface of the air filter and is connected with the cover plate, a blind cavity is formed between the ventilation box and the cover plate, a ventilation port communicated with the blind cavity is formed in the right end of the ventilation box, a nozzle communicated with the blind cavity is formed in the left end of the ventilation box, the end of the ventilation pipe is connected with the nozzle, the ventilation box is provided with a first baffle located in the blind cavity, the upper end of the first baffle is connected to the inner wall of the top of the blind cavity, and a gap is formed between the lower end of the first baffle and the inner wall of the bottom of the blind cavity.

2. A gearbox ventilation arrangement as claimed in claim 1, wherein said air filter is located above said gearbox and said ventilation box is located on the underside of said air filter facing said gearbox.

3. The ventilation structure of a gearbox according to claim 2, wherein the ventilation box is arranged obliquely, and the left end of the ventilation box is higher than the right end of the ventilation box.

4. A gearbox ventilation arrangement as claimed in claim 3, wherein said air filter is provided with a recessed region, said ventilation box being located in said recessed region.

5. A gearbox ventilation structure as claimed in claim 4, wherein said air filter is provided with a side panel located at the right side of said ventilation box, and said ventilation opening and said side panel have a gap therebetween.

6. A gearbox ventilation structure as claimed in claim 3, wherein the bottom internal wall of said blind cavity is arranged as a plane, and the left end of said bottom internal wall of said blind cavity is higher than the right end.

7. The gearbox ventilation structure as claimed in claim 1, wherein the ventilation pipe is sleeved outside the nozzle, and the ventilation pipe and the nozzle are in interference fit.

8. The gearbox ventilation structure as claimed in claim 1, wherein the cover plate is detachably connected to the ventilation box.

9. A gearbox ventilation structure as defined in claim 8, wherein said cover plate is provided with a sealing skirt surrounding said blind cavity, and said ventilation box is provided with a sealing groove engaging said sealing skirt.

10. Motorcycle, characterized in that it comprises a ventilation structure of a gearbox according to any one of claims 1 to 9.

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