CN210290797U

CN210290797U - High-strength automobile exhaust valve mechanism

Info

Publication number: CN210290797U
Application number: CN201921271993.0U
Authority: CN
Inventors: 吴春晓
Original assignee: Shenzhen Carnet Motors Technology Co ltd
Current assignee: Shenzhen Carnet Motors Technology Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-04-10
Anticipated expiration: 2029-08-07

Abstract

The utility model discloses an automobile exhaust valve mechanism of high strength, including transmission spring, transmission spring's top fixed mounting has last valve body base, and the top fixed mounting who goes up valve body base has the graphite ring, and the top fixed mounting of graphite ring has down the location shell, and the inner wall fixed mounting who fixes a position the shell down has the bearing. The utility model discloses a car exhaust valve mechanism of high strength adopts the sealed support of graphite ring through the top bearing that sets up, pushes down transmission spring's pressure through the valve body motor, lets bearing step face and graphite end face contact, plays sealed effect. The bottom shaft of the top shaft valve plate is fixedly connected with the bottom shaft, a gap is reserved between the bottom shaft and the sealing plate, a contact space is reserved for the top bearing and the end face of the graphite pad in a suspension state, the graphite self-lubricating corrosion-resistant and high-temperature-resistant characteristic can play a role in long-term lubrication of the bearing under severe conditions, and the controllability of the valve device and the service life of the bearing are greatly increased.

Description

High-strength automobile exhaust valve mechanism

Technical Field

The utility model relates to an automotive filed, in particular to automobile exhaust valve mechanism of high strength.

Background

Because of the shortage of energy, general civil vehicles emphasize the fuel saving, so the exhaust back pressure is improved by various means, the low-speed torque of the engine can be enhanced, the fuel consumption of the vehicle is reduced, but the maximum horsepower of the engine is limited, because the exhaust pressure is greatly increased when the engine outputs large horsepower, a large amount of exhaust gas remains in a cylinder after an exhaust stroke, the air intake efficiency of the next air stroke is influenced, the airflow throughput of the engine is reduced, the rated maximum horsepower of the engine is seriously reduced, and the acceleration reaction of the engine is relatively slowed down.

And because the increase of exhaust pressure can also make the engine easy to knock when high power is output, the engine deposits carbon seriously, so some automobile manufacturers have proposed the variable valve exhaust pipe, but need to rely on the computer control, and difficult to achieve the stepless variable control, with high costs, the maintenance cost is high, mainly apply to high-end motorcycle type at present, such as some time-keeping swift running Bao horse Audi motorcycle types, the ordinary civil car is not adopted by factors such as manufacturer's cost restriction, therefore have proposed a high-strength automobile exhaust valve mechanism here.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a car exhaust valve mechanism of high strength can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-strength automobile exhaust valve mechanism comprises a transmission spring, wherein an upper valve body base is fixedly mounted at the top end of the transmission spring, a graphite ring is fixedly mounted at the top end of the upper valve body base, a lower positioning shell is fixedly mounted at the top end of the graphite ring, a bearing is fixedly mounted on the inner wall of the lower positioning shell, a gear column is fixedly mounted at the top end of the bearing, a first gear is sleeved on the outer wall of the gear column, a second gear is movably connected to the outer wall of the first gear, a clamping piece is fixedly mounted on the inner wall of the lower positioning shell, an upper positioning shell is fixedly mounted at the top end of the lower positioning shell, a mounting pin is fixedly mounted on the inner wall of the upper positioning shell, a top bearing is fixedly mounted at the bottom end of the transmission spring, a groove is formed in the top end of the top bearing, and a, the bottom fixed mounting of valve body frame has the bottom bearing, the bottom fixed mounting of bottom bearing has the steel wire packing ring, the bottom fixed mounting of steel wire packing ring has the closing plate, the inner wall bottom fixed mounting of valve body frame has the valve block.

Preferably, the upper valve body base, the upper positioning shell and the lower positioning shell are fixedly installed through installation pins, and the installation pins are identical in size and specification.

Preferably, the inner wall of the first gear is fixedly connected with the gear column through a clamping block, and the first gear and the second gear are meshed with each other through gears.

Preferably, the transmission spring is directly clamped in a central groove of the motor bearing, and the upper valve body base is fixedly connected with the top bearing through the transmission spring.

Preferably, the gear column and the bearing are connected through welding, and the upper positioning shell and the lower positioning shell are fixedly connected through glue.

Preferably, the bottom end of the top bearing penetrates through the top end of the valve body frame and extends to the inside of the valve body frame, and the top end of the bottom bearing penetrates through the bottom end of the square frame and extends to the inside of the valve body frame.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, the top bearing of setting adopts the sealed support of graphite ring, through the pressure that the valve body motor pushed down drive spring, lets bearing step face and graphite end face contact, plays sealed effect. The bottom shaft of the top shaft valve plate is fixedly connected with the bottom shaft, a gap is reserved between the bottom shaft and the sealing plate, a contact space is reserved for the top bearing and the end face of the graphite pad in a suspension state, the graphite self-lubricating corrosion-resistant and high-temperature-resistant characteristic can play a role in long-term lubrication of the bearing under severe conditions, and the controllability of the valve device and the service life of the bearing are greatly increased.

Drawings

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

FIG. 2 is a schematic view of the upper half of the structure of the present invention;

FIG. 3 is a schematic view of the lower half of the structure of the present invention;

fig. 4 is a structural sectional view of the present invention.

In the figure: 1. a transmission spring; 2. a top bearing; 3. a groove; 4. a valve body frame; 5. a valve plate; 6. a bottom bearing; 7. a wire washer; 8. a sealing sheet; 9. mounting a pin; 10. an upper positioning housing; 11. a card; 12. a first gear; 13. a second gear; 14. a gear post; 15. a bearing; 16. a lower positioning housing; 17. a graphite ring; 18. an upper valve body base.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a high-strength exhaust valve mechanism for an automobile comprises a transmission spring 1, an upper valve body base 18 is fixedly installed at the top end of the transmission spring 1, the upper valve body base 18, an upper positioning housing 10 and a lower positioning housing 16 are all fixedly installed through an installation pin 9, the size and the specification of the installation pin 9 are all the same, a graphite ring 17 is fixedly installed at the top end of the upper valve body base 18, a lower positioning housing 16 is fixedly installed at the top end of the graphite ring 17, a bearing 15 is fixedly installed on the inner wall of the lower positioning housing 16, a gear post 14 is fixedly installed at the top end of the bearing 15, the gear post 14 and the bearing 15 are connected by welding, the upper positioning housing 10 and the lower positioning housing 16 are fixedly connected by glue, a first gear 12 is sleeved on the outer wall of the gear post 14, the inner wall of the first gear 12 is fixedly connected with the gear post 14 through a fixture block, the first gear 12, the outer wall of the first gear 12 is movably connected with a second gear 13, the inner wall of the lower positioning shell 16 is fixedly provided with a clamping piece 11, the top end of the lower positioning shell 16 is fixedly provided with an upper positioning shell 10, the inner wall of the upper positioning shell 10 is fixedly provided with an installation pin 9, the bottom end of the transmission spring 1 is fixedly provided with a top bearing 2, the bottom end of the top bearing 2 penetrates through the top end of the valve body frame 4 and extends to the inside of the valve body frame 4, the top end of the bottom bearing 6 penetrates through the bottom end of the square frame 4 and extends to the inside of the valve body frame 4, the transmission spring 1 is directly clamped in a central groove of a motor bearing, the upper valve body base 18 is fixedly connected with the top bearing through the transmission spring 1, the top end of the top bearing 2 is provided with a groove 3, the bottom end of the top bearing 2 is fixedly provided with the valve body frame 4, the bottom end of the steel wire gasket 7 is fixedly provided with a sealing sheet 8, and the bottom end of the inner wall of the valve body frame 4 is fixedly provided with a valve sheet 5.

It should be noted that the utility model relates to a high strength automobile exhaust valve mechanism, when using, by electronic module and valve motor and muffler pipeline on the valve body base 18 constitute, valve body frame 4 is by 304 stainless steel precision casting, the turning and milling combined machining, valve block 5 is fixed by top bearing 2 and bottom bearing 6, valve block 5 and top bearing 2, the junction of bottom bearing 6 is consolidated with laser welding, bottom bearing 6 is supported by steel wire packing ring 7, bottom bearing below is sealed by circular closing plate 8, closing plate 8 welds the reinforcement anticreep again with the valve body tight fit, prevent that steam from leaking, bearing 15 adopts graphite ring 17 sealed support, through the pressure of valve body motor pushing down transmission spring 1, let the step face of bearing 15 and the terminal surface contact of graphite ring 17, play the sealing effect, bottom bearing 15 and closing plate 8 reserve the clearance, be unsettled state for bearing 15 and graphite ring 17 terminal surface reservation contact space, the graphite self-lubricating corrosion-resistant and high-temperature-resistant characteristic can play a role in long-term lubrication of the bearing 15 under severe conditions, the controllability of the valve device is greatly increased, the service life of the bearing 15 can be prolonged, and the valve plate 5 of the valve can be flexibly opened to discharge tail gas under the condition that the exhaust volume needs to be increased suddenly, such as emergency acceleration of a vehicle.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a car exhaust valve mechanism of high strength, includes transmission spring (1), its characterized in that: the valve body base (18) is fixedly mounted at the top end of the transmission spring (1), the graphite ring (17) is fixedly mounted at the top end of the upper valve body base (18), the positioning shell (16) is fixedly mounted at the top end of the graphite ring (17), the bearing (15) is fixedly mounted at the inner wall of the lower positioning shell (16), the gear column (14) is fixedly mounted at the top end of the bearing (15), the first gear (12) is sleeved on the outer wall of the gear column (14), the second gear (13) is movably connected with the outer wall of the first gear (12), the clamping piece (11) is fixedly mounted at the inner wall of the lower positioning shell (16), the upper positioning shell (10) is fixedly mounted at the top end of the lower positioning shell (16), the mounting pin (9) is fixedly mounted at the inner wall of the upper positioning shell (10), the top bearing (2) is fixedly mounted at the bottom end of the transmission spring (1, the top of top bearing (2) is seted up fluted (3), the bottom fixed mounting of top bearing (2) has valve body frame (4), the bottom fixed mounting of valve body frame (4) has bottom bearing (6), the bottom fixed mounting of bottom bearing (6) has steel wire packing ring (7), the bottom fixed mounting of steel wire packing ring (7) has closing cap (8), the inner wall bottom fixed mounting of valve body frame (4) has valve block (5).

2. A high strength automotive exhaust valve mechanism according to claim 1 wherein: the upper valve body base (18), the upper positioning shell (10) and the lower positioning shell (16) are fixedly installed through installation pins (9), and the installation pins (9) are identical in size and specification.

3. A high strength automotive exhaust valve mechanism according to claim 1 wherein: the inner wall of the first gear (12) is fixedly connected with the gear column (14) through a clamping block, and the first gear (12) and the second gear (13) are meshed with each other through gears.

4. A high strength automotive exhaust valve mechanism according to claim 1 wherein: the transmission spring (1) is directly clamped in a central groove of a motor bearing, and the upper valve body base (18) is fixedly connected with the top bearing through the transmission spring (1).

5. A high strength automotive exhaust valve mechanism according to claim 1 wherein: the gear column (14) is connected with the bearing (15) through welding, and the upper positioning shell (10) is fixedly connected with the lower positioning shell (16) through glue.

6. A high strength automotive exhaust valve mechanism according to claim 1 wherein: the bottom end of the top bearing (2) penetrates through the top end of the valve body frame (4) and extends to the inside of the valve body frame (4), and the top end of the bottom bearing (6) penetrates through the bottom end of the square frame (4) and extends to the inside of the valve body frame (4).