CN212776287U

CN212776287U - Automobile flywheel housing ventilation structure

Info

Publication number: CN212776287U
Application number: CN202021531175.2U
Authority: CN
Inventors: 孙华
Original assignee: Shanghai Bus First Public Transport Co ltd
Current assignee: Shanghai Bus First Public Transport Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-23
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a car flywheel housing ventilation structure, including the flywheel housing, the inside stamping forming of flywheel housing has the mounting groove, the air vent has been seted up to the middle part welding of mounting groove on installing port and one side, the periphery in air vent has been seted up sealed butt joint groove and inside and has been seted up four group's screw thread perforation, four group's screw thread perforation are located the inboard in sealed butt joint groove, the air vent has put the filter, the filter includes cartridge filter and the spacing ring of machine-shaping in cartridge filter lower extreme, the cartridge filter is by the urceolus, the one-level filter screen, filter paper and secondary filter net constitute, the inside of urceolus is formed with the inner chamber, the outer end at the inner chamber is fixed to the one. The utility model discloses opened a hole and installed a filter equipment again simultaneously in original installation starter motor's position, just so can let inside the flywheel housing the same with the atmosphere, the condition of oil leak can not appear and can not let inside dust, the water stain entering housing.

Description

Automobile flywheel housing ventilation structure

Technical Field

The utility model relates to an automobile parts technical field specifically is an automobile flywheel housing ventilation structure.

Background

Automotive flywheels are disk-shaped parts with a high moment of inertia, which act as an energy store. For a four-stroke engine, work is done once every four piston strokes, namely, only the work stroke works, and the exhaust stroke, the air inlet stroke and the compression stroke consume the work, the installation of an automobile flywheel needs to be protected by a special flywheel housing, and the S2T model flywheel housing processes the flywheel housing into a fully closed state in order to prevent a generator from being eroded by dust, stones and rainwater, so that the flywheel housing forms a vacuum state in the running process of the engine.

However, the existing S2T model flywheel cover has the following problems in the using process: the engine of the motorcycle type forms a vacuum state in the flywheel housing in the running process, and meanwhile, a certain positive pressure is generated in the crankcase of the engine, so that engine oil is sucked into the flywheel housing from the oil seal due to pressure difference, and the oil leakage condition is generated. For this reason, a corresponding technical scheme needs to be designed to solve the existing technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a car flywheel housing ventilation structure has solved the problem that proposes in the background art, satisfies the in-service use demand.

In order to achieve the above object, the utility model provides a following technical scheme: a ventilation structure of an automobile flywheel housing comprises a flywheel housing, wherein a mounting groove is formed in the flywheel housing in a punching mode, a mounting opening is welded in the middle of the mounting groove, a ventilation opening is formed in one side of the mounting groove, a sealing butt joint groove is formed in the periphery of the ventilation opening, four groups of threaded perforations are formed in the sealing butt joint groove, the four groups of threaded perforations are located on the inner side of the sealing butt joint groove, a filter is arranged in the ventilation opening and comprises a filter cartridge and a limiting ring machined and formed at the lower end of the filter cartridge, the filter cartridge comprises an outer cartridge, a first-stage filter screen, a filter paper and a second-stage filter screen, an inner cavity is formed in the outer cartridge, the first-stage filter screen is fixed at the outer end of the inner cavity, a plurality of groups of air guide cavity holes are longitudinally formed in the inner cavity and in the inner, the plug is fixed in the threaded through hole through threads.

As a preferred embodiment of the utility model, the even machine-shaping of inner wall of mounting groove has a plurality of groups strengthening rib, the strengthening rib is the inner wall integrated into one piece of column structure and inner and mounting groove.

As a preferred embodiment of the present invention, a rubber sealing ring is disposed in the sealing butt joint groove, and the rubber sealing ring is located at the joint of the sealing butt joint groove and the limiting ring.

As a preferred embodiment of the present invention, an outer ring is fixed to the outer end of the outer cylinder by a screw thread, and the outer ring contacts with the outer wall of the flywheel housing.

As a preferred embodiment of the utility model, primary filter screen and secondary filter screen surface are formed with a plurality of groups of bleeder vents, are located bleeder vent diameter on the primary filter screen is greater than the bleeder vent diameter that is located on the secondary filter screen.

As a preferred embodiment of the utility model, the air guide cavity hole is of a curved structure and the inner wall is attached with activated carbon particles.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this scheme opens a hole in the position of original installation starter motor and has installed a filter equipment again simultaneously, just so can let the inside atmosphere the same of flywheel housing, the condition that the oil leak can not appear and can not let inside dust, the water stain entering housing.

2. The ventilation mechanism of this scheme design is simple, and inside filtering mechanism is convenient for install and dismantle, and the cost is with low costs.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a structural view of the ventilating opening of the present invention;

FIG. 3 is a schematic diagram of the filter of the present invention;

fig. 4 is a structure diagram of the inside of the filter cartridge according to the present invention.

In the figure, the flywheel casing is 1, the flywheel casing is 2, the mounting groove is 3, the mounting opening is 4, the ventilation opening is 5, the sealing butt joint groove is 6, the thread perforation is 6, the filter is 7, the limiting ring is 8, the outer cylinder is 9, the primary filter screen is 10, the filter paper is 11, the secondary filter screen is 12, the air guide cavity hole is 13, the plug is 14, the reinforcing rib is 15, the rubber sealing ring is 16, the outer ring is 17, and the ventilation hole is 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a ventilation structure of an automobile flywheel housing comprises a flywheel housing 1, a mounting groove 2 is punched and formed in the flywheel housing 1, a mounting opening 3 is welded in the middle of the mounting groove 2, an air vent 4 is formed in one side of the mounting groove, a sealing butt-joint groove 5 is formed in the periphery of the air vent 4, four groups of threaded through holes 6 are formed in the sealing butt-joint groove 5, a filter 7 is arranged in the air vent 4, the filter 7 comprises a filter cylinder and a limiting ring 8 which is formed at the lower end of the filter cylinder in a machining mode, the filter cylinder comprises an outer cylinder 9, a primary filter screen 10, filter paper 11 and a secondary filter screen 12, an inner cavity is formed in the outer cylinder 9, the primary filter screen 10 is fixed at the outer end of the inner cavity, a plurality of air guide cavity holes 13 are longitudinally formed in the inner cavity of the filter paper 11, the secondary filter screen 12 is fixed at the inner end of the inner cavity, the plug 14 is screwed into the threaded bore 6.

Further improved, as shown in fig. 1: the even machine-shaping of inner wall of mounting groove 2 has a plurality of groups strengthening rib 15, and strengthening rib 15 is the inner wall integrated into one piece of column structure and inner and mounting groove 2, can the inside tightness of effectual improvement flywheel housing 1.

Further improved, as shown in fig. 2: the rubber sealing ring 16 is arranged in the sealing butt joint groove 5, the rubber sealing ring 16 is located at the joint of the sealing butt joint groove 5 and the limiting ring 8, and the sealing performance of the joint can be improved by designing the rubber sealing ring 16 at the joint.

Further improved, as shown in fig. 1: an outer ring 17 is fixed at the outer end of the outer cylinder 9 through threads, the outer ring 17 is in contact with the outer wall of the flywheel housing 1, and the purpose of fixedly mounting the filter 7 can be achieved by fixing the outer ring 17 on the outer side after the filter 7 is mounted.

Further improved, as shown in fig. 4: a plurality of groups of air holes 18 are formed on the surfaces of the first-stage filter screen 10 and the second-stage filter screen 12, the diameter of the air holes 18 on the first-stage filter screen 10 is larger than that of the air holes 18 on the second-stage filter screen 12, and the double-layer filtering purpose can be achieved by the design mode.

Specifically, the air guide cavity hole 13 is of a curved structure, and activated carbon particles are attached to the inner wall of the air guide cavity hole, so that the probability that suspended matters of small particles on the outer side pass through the air guide cavity hole 13 can be effectively reduced by designing the inner cavity hole 13 into the curved structure, and a certain adsorption purpose can be achieved through the activated carbon particles.

When in use: the utility model discloses at first in having seted up the through-air mouth 4 in one side of flywheel housing 1 and arranging filter 7 in through-air mouth 4, urceolus 9 alternates alternate with through-air mouth 4 in and make the spacing ring 8 buckle in the outside with sealed butt joint inslot 5, then carry out spacing fixed to filter 7 at screw perforation 6 female fixed bolt 14, the inboard is fixed to finish the back and is screwed up outer ring 17 at filter 7's outer end screw and reach the fixed purpose in outer end spacing, such design can make the outside and the inboard of flywheel housing 1 can carry out the circulation of air, make inside and outside atmospheric pressure the same, the condition of producing oil can not appear, through one-level filter screen 10, filter paper 11 and secondary filter 12 can carry out filtration treatment layer upon layer to the air in the external world.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automobile flywheel housing ventilation structure, includes flywheel housing (1), its characterized in that: the flywheel housing (1) is punched and formed with a mounting groove (2), the middle welding of the mounting groove (2) is provided with a mounting port (3) and one side of the mounting groove (4), the periphery of the mounting groove (4) is provided with a sealing butt-joint groove (5) and four groups of screw perforation holes (6) are arranged in the mounting groove, the four groups of screw perforation holes (6) are positioned in the inner side of the sealing butt-joint groove (5), a filter (7) is arranged in the mounting groove (4), the filter (7) comprises a filter cartridge and a limiting ring (8) which is formed at the lower end of the filter cartridge in a processing way, the filter cartridge comprises an outer cylinder (9), a first-level filter screen (10), filter paper (11) and a second-level filter screen (12), the inner end of the inner cylinder (9) is fixed by the first-level filter screen (10), the inner cavity is arranged in the filter paper (, the secondary filter screen (12) is fixed at the inner end of the inner cavity, the limiting ring (8) is buckled in the sealing butt joint groove (5) in a clamping mode, four groups of plug bolts (14) are inserted into the surface of the limiting ring in a penetrating mode, and the plug bolts (14) are fixed in the threaded through holes (6) in a threaded mode.

2. The ventilation structure for the flywheel housing of the automobile as set forth in claim 1, wherein: the inner wall of mounting groove (2) evenly machine-formed has a plurality of groups strengthening rib (15), strengthening rib (15) are the inner wall integrated into one piece of column structure and inner and mounting groove (2).

3. The ventilation structure for the flywheel housing of the automobile as set forth in claim 1, wherein: and a rubber sealing ring (16) is arranged in the sealing butt joint groove (5), and the rubber sealing ring (16) is positioned at the joint of the sealing butt joint groove (5) and the limiting ring (8).

4. The ventilation structure for the flywheel housing of the automobile as set forth in claim 1, wherein: an outer ring (17) is fixed at the outer end of the outer cylinder (9) in a threaded manner, and the outer ring (17) is in contact with the outer wall of the flywheel housing (1).

5. The ventilation structure for the flywheel housing of the automobile as set forth in claim 1, wherein: a plurality of groups of air holes (18) are formed in the surfaces of the first-stage filter screen (10) and the second-stage filter screen (12), and the diameters of the air holes (18) in the first-stage filter screen (10) are larger than the diameters of the air holes (18) in the second-stage filter screen (12).

6. The ventilation structure for the flywheel housing of the automobile as set forth in claim 1, wherein: the air guide cavity hole (13) is of a curved structure, and activated carbon particles are attached to the inner wall of the air guide cavity hole.