阅读说明：本技术 一种气门座圈安装结构、调节方法及发动机 (Valve seat ring mounting structure, adjusting method and engine ) 是由 刘汉烈 喻磊 朱芙蓉 于 2020-05-14 设计创作，主要内容包括：本发明公开了一种气门座圈安装结构、调节方法及发动机,所述结构包括缸盖、座圈和驱动装置；所述缸盖与所述座圈螺纹连接,所述驱动装置与所述座圈连接,所述驱动装置用于带动所述座圈在所述缸盖上以预定时间间隔转动预设角度,通过将座圈设置成可调节的,能够使得气门和座圈均匀的磨损,避免座圈出现漏液等故障信息,由于座圈会在缸盖安装孔轴线上移动,可以补偿座圈的磨损量,在一定程度上增加了座圈的使用寿命,本发明结构简单,通过精确的控制,保证了座圈的使用时间,减少了维修成本,提高了发动机的寿命。(The invention discloses a valve seat ring mounting structure, an adjusting method and an engine, wherein the structure comprises a cylinder cover, a seat ring and a driving device; the cylinder cover is in threaded connection with the seat ring, the driving device is connected with the seat ring, the driving device is used for driving the seat ring to rotate on the cylinder cover for a preset angle at preset time intervals, the seat ring is set to be adjustable, the valve and the seat ring can be uniformly abraded, fault information such as liquid leakage and the like of the seat ring is avoided, the seat ring can move on the axis of a mounting hole of the cylinder cover, the abrasion loss of the seat ring can be compensated, and the service life of the seat ring is prolonged to a certain extent.)

1. A valve seat ring mounting structure is characterized by comprising a cylinder cover (1), a seat ring (2) and a driving device (3); the cylinder cover (1) is in threaded connection with the seat ring (2), the driving device (3) is connected with the seat ring (2), and the driving device (3) is used for driving the seat ring (2) to rotate for a preset angle at a preset time interval on the cylinder cover (1).

2. A valve seat ring mounting structure according to claim 1, wherein the cylinder head (1) includes a mounting hole (11), the mounting hole (11) is provided with an internal thread, the outer portion of the seat ring (2) is provided with a threaded portion (21) and a connecting portion (22), the threaded portion (21) is fitted with the internal thread of the mounting hole (11), and the connecting portion (22) is connected with the driving device (3).

3. A valve seat ring mounting structure according to claim 2, wherein the connecting portion (22) is provided at the top of the cylinder head (1) and projects outward along the outer periphery of the threaded portion (21).

4. A valve seat ring mounting structure according to claim 2, wherein the driving device (3) includes a driving motor (31), a connecting shaft (32), and a driving gear (33); the driving motor (31) is connected with the driving gear (33) through the connecting shaft (32), and the driving gear (33) is connected with the connecting part (22).

5. A valve seat ring mounting structure according to claim 4, wherein the connecting portion (22) is an outer ring gear, and the drive gear (33) is meshed with the outer ring gear.

6. A valve seat insert mounting arrangement according to claim 2, characterized in that the drive means (3) further comprises a control module (34), the control module (34) being connected to the drive motor (31), the control module (34) being adapted to control the drive motor (31) to drive the seat insert (2) in rotation at preset time intervals.

7. A valve seat ring mounting structure according to claim 2, characterized in that the driving device (3) further comprises a position sensor (35), the position sensor (35) being adapted to detect the position of the seat ring (2) in the cylinder head (1) in real time.

8. A method of valve seat insert adjustment, the method comprising the steps of:

judging whether the engine is started or not;

when an engine is started, acquiring the position information of a seat ring in a cylinder cover in real time;

and controlling a driving motor to drive the seat ring to rotate by a preset angle according to the position information.

9. The valve seat insert adjusting method of claim 8, wherein the controlling a drive motor to rotate the seat insert based on the position information comprises:

when the position of the seat ring in the cylinder cover does not exceed a first preset position, controlling a driving motor to drive the seat ring to rotate for a preset angle along a first direction at a preset time interval;

when the position of the seat ring in the cylinder cover exceeds a first preset position, the driving motor is controlled to drive the seat ring to rotate for a preset angle along a second direction at preset time intervals.

10. An engine which is a methanol engine, characterized by comprising the valve seat ring mounting structure according to any one of claims 1 to 7.

Technical Field

The invention relates to the field of new energy automobiles, in particular to a valve seat ring mounting structure, an adjusting method and an engine.

Background

In recent years, the application of methanol as a fuel for replacing raw coal and oil gas in the fields of automobiles, ships, industrial boilers, heating and heat supply and the like is gradually pushed away, and better economic and environmental benefits are generated. The ministry of industry and trust of 19 days 3 and 3 months in 2019, the national development and improvement committee and other departments jointly release guidance opinions about the development of methanol automobile applications in partial areas, and the reasonable layout of the methanol automobile industry is required to be strengthened, the international leading position of the methanol automobile and related industries in the fields of products, technologies and special equipment in China is kept, and the construction of a methanol automobile manufacturing system is accelerated.

The methanol fuel used by the existing methanol engine has poor self-lubricating property, after the engine is used for a long time, the abrasion of the valve seat ring can be accelerated, the phenomenon of uneven abrasion is shown, and more faults that the valve seat ring is abraded too fast occur in the market.

Disclosure of Invention

In view of the above problems in the prior art, an object of the present invention is to provide a valve seat ring mounting structure, an adjusting method, and an engine, which can solve the problem of uneven wear between a valve and a seat ring.

In order to solve the technical problems, the specific technical scheme of the invention is as follows:

on one hand, the invention provides a valve seat ring mounting structure, which comprises a cylinder cover, a seat ring and a driving device, wherein the cylinder cover is provided with a cylinder cover; the cylinder cover is in threaded connection with the seat ring, the driving device is connected with the seat ring, and the driving device is used for driving the seat ring to rotate on the cylinder cover, so that the valve is prevented from impacting the same part of the seat ring when moving in the cylinder.

Further, the cylinder cap includes the mounting hole, the mounting hole is equipped with the internal thread, the outside of seat circle is equipped with screw thread portion and connecting portion, screw thread portion with the interior screw-thread fit of mounting hole, connecting portion with drive arrangement connects.

Further, the connection portion is provided at a top portion of the cylinder head and protrudes outward along an outer circumference of the screw portion.

Further, the driving device comprises a driving motor, a connecting shaft and a driving gear; the driving motor is connected with the driving gear through the connecting shaft, and the driving gear is connected with the connecting part.

Further, the connecting portion is an outer gear ring, and the driving gear is meshed with the outer gear ring.

Preferably, the driving motor is a stepping motor.

Furthermore, the driving device further comprises a control module, the control module is connected with the driving motor, and the control module is used for controlling the driving motor to drive the seat ring to rotate at preset time intervals.

Preferably, the control module is a vehicle control unit,

preferably, the drive device further comprises a position sensor for detecting the position of the seat ring in the cylinder head in real time.

On the other hand, on the basis of the valve seat ring mounting structure provided above, the present invention also provides a valve seat ring adjusting method, including the steps of:

judging whether the engine is started or not;

when an engine is started, acquiring the position information of a seat ring in a cylinder cover in real time;

and controlling a driving motor to drive the seat ring to rotate according to the position information.

Further, according to the position information, controlling a driving motor to drive the seat ring to rotate comprises:

when the position of the seat ring in the cylinder cover does not exceed a first preset position, controlling a driving motor to drive the seat ring to rotate in a first direction at preset time intervals;

and when the position of the seat ring in the cylinder cover exceeds a first preset position, controlling the driving motor to drive the seat ring to rotate in a second direction at preset time intervals.

In a third aspect, the invention further provides an engine, wherein the engine is a methanol engine, and the engine comprises the valve seat ring mounting structure.

By adopting the technical scheme, the valve seat ring mounting structure, the adjusting method and the engine have the following beneficial effects:

1. according to the valve seat ring mounting structure, the adjusting method and the engine, the seat ring is adjustable, so that the valve and the seat ring can be uniformly abraded, and fault information such as liquid leakage and the like of the seat ring is avoided.

2. According to the valve seat ring mounting structure, the adjusting method and the engine, the seat ring can move on the axis of the cylinder cover mounting hole to compensate the abrasion loss of the seat ring, so that the service life of the seat ring is prolonged to a certain extent.

3. The valve seat ring mounting structure, the adjusting method and the engine are simple in structure, the service time of the seat ring is guaranteed through accurate control, the maintenance cost is reduced, and the service life of the engine is prolonged.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view of a valve seat insert mounting arrangement according to the present invention;

FIG. 2 is a schematic view of the drive assembly of FIG. 1;

FIG. 3 illustrates steps of a valve seat adjustment method of the present invention;

fig. 4 is a detailed step diagram of step S106 in fig. 3.

In the figure: 1-a cylinder cover, 2-a seat ring, 3-a driving device, 4-a valve, 11-a mounting hole, 21-a threaded part, 22-a connecting part, 31-a driving motor, 32-a connecting shaft, 33-a driving gear, 34-a control module and 35-a position sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.