阅读说明：本技术 一种摇臂安装结构、发动机及摩托车 (Rocker arm mounting structure, engine and motorcycle ) 是由 王德海 于 2021-07-14 设计创作，主要内容包括：本发明的实施例提供的一种摇臂安装结构、发动机及摩托车,所述安装结构包括：摇臂,用于压接气门结构的垫片；以及摇臂轴,转动穿设于所述摇臂本体上,用于装设第一摇臂轴支架和第二摇臂轴支架,所述摇臂位于所述第一摇臂轴支架和第二摇臂轴支架之间；限位件,所述限位件可拆卸地设于所述摇臂轴上,所述限位件用于与第二摇臂轴支架共同对所述摇臂进行轴向限位。通过所述限位件和所述第二摇臂支架共同对所述摇臂进行限位,以使所述摇臂可正常运动,通过调整所述限位件,使得所述摇臂轴可移动,从而使得所述摇臂可移动,进而能够进行垫片的调整更换,无需通过拆除凸轮轴才能实现对所述垫片的调整更换,操作简单方便,且工序少,工作效率高。(An embodiment of the present invention provides a rocker arm mounting structure, an engine and a motorcycle, wherein the mounting structure includes: the rocker arm is used for pressing and connecting a gasket of the valve structure; the rocker arm shaft is rotatably arranged on the rocker arm body in a penetrating way and is used for installing a first rocker arm shaft bracket and a second rocker arm shaft bracket, and the rocker arm is positioned between the first rocker arm shaft bracket and the second rocker arm shaft bracket; the limiting piece is detachably arranged on the rocker arm shaft and used for axially limiting the rocker arm together with the second rocker arm shaft bracket. Through locating part with second rocking arm support is common right the rocking arm carries on spacingly, so that the rocking arm can normally move, through the adjustment the locating part makes the rocking arm axle is portable, thereby makes the rocking arm is portable, and then can carry out the adjustment of gasket and change, need not just can realize just through demolising the camshaft the adjustment of gasket is changed, easy operation is convenient, and the process is few, and work efficiency is high.)

1. A rocker arm mounting structure, the mounting structure comprising:

the rocker arm is used for pressing and connecting a gasket of the valve structure;

the rocker arm shaft is rotatably arranged on the rocker arm body, and the rocker arm is positioned between the first rocker arm shaft bracket and the second rocker arm shaft bracket;

the limiting piece is detachably arranged on the rocker arm shaft and is used for limiting the rocker arm in the axial direction together with the second rocker arm shaft bracket; with the stop removed, the rocker arm may be moved axially relative to the first rocker shaft support and/or the second rocker shaft support.

2. The rocker arm mounting structure of claim 1, wherein the rocker arm shaft comprises:

the limiting part is a limiting part;

a mounting part connected with the limiting part, on which the rocker arm is mounted, while the mounting part is supported by a second rocker arm shaft bracket;

the cross-sectional area of the limiting part is larger than that of the mounting part.

3. The rocker arm mounting structure of claim 2,

the part of the limiting part penetrates through the first rocker shaft support, and one end, close to the rocker arm, of the limiting part is located outside the first rocker shaft support.

4. The rocker arm mounting structure of claim 1, wherein the limiting portion defines a first hole, the first rocker shaft bracket defines a second hole,

and the limiting part and the first rocker shaft bracket are fixed together by sequentially penetrating through the first hole and the second hole through locking parts.

5. The rocker arm mounting structure of claim 1, wherein the rocker arm comprises:

one end of the connecting arm is in pressure connection with a gasket of the valve structure;

the periphery of the sleeve is connected with the other end of the connecting arm, and an inner cavity of the sleeve is sleeved on the rocker arm shaft.

6. The rocker arm mounting structure of claim 5,

the first rocker shaft support and the second rocker shaft support limit the rocker arms in the radial direction;

the rocker arm further comprises:

the mounting arm is connected with the periphery of the sleeve, and one end of the mounting arm, which is far away from the sleeve, is provided with a mounting groove;

and the rolling piece is rotatably arranged in the mounting groove and is in compression joint with a cam on a cam shaft positioned below the rolling piece.

7. The rocker arm mounting structure of claim 6, wherein the connecting arm includes a first connecting arm and a second connecting arm,

one end of the first connecting arm and one end of the second connecting arm are both connected with the sleeve, and the other end of the first connecting arm and the other end of the second connecting arm are respectively in compression joint with corresponding gaskets of the valve structure;

the rocker arm further comprises:

the rolling piece is rotatably arranged between the first connecting arm and the second connecting arm and is in compression joint with a cam on the camshaft above the rolling piece.

8. An engine, characterized in that the engine has a rocker arm mounting structure as set forth in any one of claims 1 to 8.

9. A motorcycle characterized by comprising the engine as claimed in claim 9.

Technical Field

The invention relates to the technical field of motorcycles, in particular to a rocker arm mounting structure, an engine and a motorcycle.

Background

Motorcycles, two-wheeled or three-wheeled vehicles driven by gasoline engines and steered by steering front wheels by handlebars, are light, flexible and fast to drive, are widely used for patrol, passenger and cargo transportation and the like, and are also used as sports equipment. In a large direction, motorcycles are classified into street cars, road racing motorcycles, off-road motorcycles, cruise cars, station wagons, and the like.

The rocker arm in a motorcycle is actually a two-armed lever that redirects the force from the push rod, acting on the valve stem end to push open the valve. The ratio of the arm lengths of the two sides of the rocker arm is called as a rocker arm ratio, the rocker arm ratio is about 1.2-1.8, and one end of the long arm is used for pushing the valve. The working surface of the rocker head is generally cylindrical and rolls along the valve stem end surface as the rocker arm oscillates, thus allowing the force between the two to act as far as possible along the valve axis. Lubricating oil channels and oil holes are drilled in the rocker arms. And an adjusting screw for adjusting the valve clearance is screwed into a threaded hole at the end of the short arm of the rocker arm, and a head ball of the screw is in compression joint with a concave ball seat at the top end of the push rod. When the engine of motorcycle igniteed the action, specifically through the cooperation of rocking arm and camshaft, realize the swing of rocking arm, and then drive the valve structure work of rocking arm one end.

However, in the process of implementing the invention technical solution of the embodiment of the present application, the inventor of the present application finds that at least the following technical problems exist in the prior art:

when a gasket in compression joint with a rocker in a valve structure is replaced in a motorcycle in the prior art, a camshaft connected with the rocker needs to be disassembled, and the adjustment and replacement of the gasket can be realized by rotating the rocker, so that the adjustment and replacement processes of the gasket are complex, the number of disassembling processes is large, and the working efficiency is low.

Disclosure of Invention

In order to solve the above problems, the present invention aims to provide a rocker arm mounting structure, an engine and a motorcycle, which are used for solving the technical problems that when a gasket pressed with a rocker arm on a valve structure is replaced, a camshaft connected with the rocker arm needs to be detached, and the gasket can be adjusted and replaced only by rotating the rocker arm, so that the gasket is complicated in adjustment and replacement processes, multiple in detachment processes, and low in working efficiency.

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:

an embodiment of the present invention provides a rocker arm mounting structure, including:

the rocker arm is used for pressing and connecting a gasket of the valve structure;

the rocker arm shaft is rotatably arranged on the rocker arm body in a penetrating way and is used for installing a first rocker arm shaft bracket and a second rocker arm shaft bracket, and the rocker arm is positioned between the first rocker arm shaft bracket and the second rocker arm shaft bracket;

the limiting piece is detachably arranged on the rocker arm shaft and is used for limiting the rocker arm in the axial direction together with the second rocker arm shaft bracket; with the stop removed, the rocker arm may be moved axially relative to the first rocker shaft support and/or the second rocker shaft support.

Further, the rocker arm shaft includes:

the limiting part is a limiting part;

a mounting part connected with the limiting part, on which the rocker arm is mounted, while the mounting part is supported by a second rocker arm shaft bracket;

the cross-sectional area of the limiting part is larger than that of the mounting part.

Furthermore, part of the limiting part penetrates through the first rocker shaft bracket, and one end, close to the rocker arm, of the limiting part is located outside the first rocker shaft bracket.

Furthermore, a first hole is arranged on the limiting part, a second hole is arranged on the first rocker shaft bracket,

and the limiting part and the first rocker shaft bracket are fixed together by sequentially penetrating through the first hole and the second hole through locking parts.

Further, the rocker arm includes:

one end of the connecting arm is in pressure connection with a gasket of the valve structure;

the periphery of the sleeve is connected with the other end of the connecting arm, and an inner cavity of the sleeve is sleeved on the rocker arm shaft.

Further, the rocker arm further comprises:

the mounting arm is connected with the periphery of the sleeve, and one end of the mounting arm, which is far away from the sleeve, is provided with a mounting groove;

and the rolling piece is rotatably arranged in the mounting groove and is in compression joint with a cam on a cam shaft positioned below the rolling piece.

Further, the connecting arm comprises a first connecting arm and a second connecting arm,

one end of the first connecting arm and one end of the second connecting arm are both connected with the sleeve, and the other end of the first connecting arm and the other end of the second connecting arm are respectively in compression joint with corresponding gaskets of the valve structure;

the rocker arm further comprises:

the rolling piece is rotatably arranged between the first connecting arm and the second connecting arm and is in compression joint with a cam on the camshaft above the rolling piece.

The invention also provides an engine comprising the rocker arm mounting structure.

The invention also provides a motorcycle comprising the engine.

Compared with the prior art, the embodiment of the invention has the beneficial effects that:

an embodiment of the present invention provides a rocker arm mounting structure, including: the rocker arm is used for pressing and connecting a gasket of the valve structure; the rocker arm shaft is rotatably arranged on the rocker arm body in a penetrating way and is used for installing a first rocker arm shaft bracket and a second rocker arm shaft bracket, and the rocker arm is positioned between the first rocker arm shaft bracket and the second rocker arm shaft bracket; the limiting piece is detachably arranged on the rocker arm shaft and is used for limiting the rocker arm in the axial direction together with the second rocker arm shaft bracket; with the stop removed, the rocker arm may be moved axially relative to the first rocker shaft support and/or the second rocker shaft support. Through locating part with second rocker arm support is common right the rocking arm carries on spacingly, so that the rocking arm can normal motion, through the adjustment the locating part makes the rocking arm axle can remove, thereby makes the rocking arm can take place to remove, and then can carry out the adjustment of gasket and change, need not just can realize right through demolising the camshaft the adjustment of gasket is changed, and easy operation is convenient, and the process is few, and work efficiency is high. And the technical problems that when a gasket which is in pressure connection with the rocker arm in the valve structure and is replaced in the motorcycle in the prior art, the camshaft connected with the rocker arm needs to be detached, and the gasket can be adjusted and replaced only by rotating the rocker arm, so that the gasket is complex in adjustment and replacement process, multiple in detachment process and low in working efficiency are solved.

The embodiment of the invention also provides an engine which comprises the rocker arm mounting structure with the bushing, and the engine can effectively solve the technical problems that when a gasket which is arranged on a valve structure and is in pressure joint with the rocker arm is replaced in a motorcycle in the prior art, a camshaft connected with the rocker arm needs to be disassembled, and the gasket can be adjusted and replaced only by rotating the rocker arm, so that the gasket is adjusted and replaced in a complex process, a plurality of disassembling processes are required, and the working efficiency is low.

The embodiment of the invention also provides a motorcycle which comprises the engine, and the motorcycle can effectively solve the technical problems that when a gasket which is in a valve structure and is in pressure connection with the rocker arm is replaced in the motorcycle in the prior art, the camshaft connected with the rocker arm needs to be disassembled, and the gasket can be adjusted and replaced only by rotating the rocker arm, so that the gasket is complex in adjustment and replacement process, multiple in disassembly process and low in working efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application 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, and it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram illustrating a connection between a limiting portion of a camshaft of a rocker arm mounting structure provided in an embodiment of the present invention, which is located above a rolling element, and a first rocker arm shaft support;

FIG. 2 is a schematic structural view of a spacing portion of a camshaft of a rocker arm mounting structure above a rolling element, separated from a first rocker arm shaft support;

FIG. 3 is a partial cross-sectional view of a camshaft of a rocker arm mounting arrangement in accordance with an embodiment of the present invention, with a first rocker arm shaft bracket coupled to a limiting portion located above a rolling element;

FIG. 4 is a partial cross-sectional view of a spacing portion of a camshaft of a rocker arm mounting arrangement above a roller separated from a first rocker arm shaft support provided by an embodiment of the present invention;

FIG. 5 is a schematic structural view of a rocker shaft of a rocker arm mounting structure provided in an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a rocker arm shaft of a rocker arm mounting structure provided in accordance with an embodiment of the present invention;

fig. 7 is a schematic structural diagram illustrating a connection between a limiting portion of a camshaft of a rocker arm mounting structure provided in an embodiment of the present invention, which is located below a rolling element, and a first rocker arm shaft bracket;

FIG. 8 is a schematic structural view of a spacing portion of a camshaft of a rocker arm mounting structure provided in an embodiment of the present invention, which is located below a rolling element, being separated from a first rocker arm shaft support;

fig. 9 is a partial sectional view of a limit portion of a camshaft of a rocker arm mounting structure provided in an embodiment of the present invention, which is located below a rolling member, being coupled to a first rocker arm shaft bracket;

FIG. 10 is a partial cross-sectional view of a spacing portion of a camshaft of a rocker arm mounting arrangement below a roller separated from a first rocker arm shaft support provided by an embodiment of the present invention;

FIG. 11 is a structural schematic view of another structure of a rocker arm mounting structure provided in the embodiment of the invention;

FIG. 12 is a sectional view showing an assembled state of another structure of a rocker arm mounting structure according to the embodiment of the invention;

fig. 13 is a sectional view in a disassembled state of another structure of a rocker arm mounting structure provided by the embodiment of the invention.

Wherein:

100. a rocker arm; 110. a connecting arm; 111. a first connecting arm; 112. a second connecting arm; 120. a rolling member; 130. a sleeve; 140. mounting an arm; 200. a rocker shaft; 201. a limiting part; 202. an installation part; 203. a first hole; 204. a second mounting hole; 300. a locking member; 400. a camshaft; 510. a first rocker shaft support; 511. a second hole; 512. a third mounting hole; 520. a second rocker shaft support; 600. a fastener; 700. a valve structure; 701. a gasket; 800. a bushing; 801. a first mounting hole.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

The present application claims a motorcycle, which may be any type of motorcycle product on the market, and is not specifically limited herein. It will be understood that the motorcycle, in addition to the frame, the electronic control system, the transmission system, the wheels, also comprises an engine, which acts as the heart of the motorcycle, for providing the power necessary for normal running. The engine includes a valve train and a rocker arm 100 structure cooperating therewith. The rocker arm 100 is configured to actuate the valve mechanism and produce work.

As shown in fig. 1, fig. 1 is a schematic structural diagram illustrating a connection between a limit portion of a camshaft of a rocker arm mounting structure provided in an embodiment of the present invention, which is located above a rolling element, and a first rocker arm shaft support;

as shown in fig. 1 to 10, the present embodiment provides a rocker arm 100 mounting structure including:

rocker arm 100, press-contacting pad 701 of valve structure 700;

the rocker arm shaft 200 is rotatably arranged on the rocker arm 100 body and used for installing a first rocker arm shaft bracket 510 and a second rocker arm shaft bracket 520, and the rocker arm 100 is positioned between the first rocker arm shaft bracket 510 and the second rocker arm shaft bracket 520;

the limiting piece is detachably arranged on the rocker arm shaft and is used for limiting the rocker arm in the axial direction together with the second rocker arm shaft bracket; with the stop removed, the rocker arm may be moved axially relative to the first rocker shaft support and/or the second rocker shaft support.

Through locating part with second rocker arm support is common right the rocking arm carries on spacingly, so that the rocking arm can normal motion, through the adjustment the locating part makes the rocking arm axle can remove, thereby makes the rocking arm can take place to remove, and then can carry out the adjustment of gasket and change, need not just can realize right through demolising the camshaft the adjustment of gasket is changed, and easy operation is convenient, and the process is few, and work efficiency is high. And the technical problems that when a gasket which is in pressure connection with the rocker arm in the valve structure and is replaced in the motorcycle in the prior art, the camshaft connected with the rocker arm needs to be detached, and the gasket can be adjusted and replaced only by rotating the rocker arm, so that the gasket is complex in adjustment and replacement process, multiple in detachment process and low in working efficiency are solved.

The rocker arm shaft 200 includes:

a limiting portion 201, in this embodiment, the limiting member is the limiting portion, wherein when the limiting portion 201 and the first rocker shaft bracket 510 are connected to each other, the limiting portion 201 and the second rocker shaft bracket 520 jointly limit the rocker arm 100 in the axial direction;

when the stopper portion 201 is separated from the first rocker shaft bracket 510, the rocker shaft 200 is moved so that the rocker arm 100 is movable.

Specifically, the first rocker shaft bracket 510 is sleeved on the limiting portion 201, the second rocker shaft bracket 520 is sleeved on the rocker shaft 200, and the rocker arm 100 is sleeved on the rocker shaft 200, and is limited by the limiting portion 201 and the second rocker shaft bracket, so that the rocker arm cannot move axially.

The first rocker shaft support 510 is connected to the limiting portion 201, and specifically includes:

the first hole 203 is opened on the limiting portion 201, the second hole 511 is opened on the first rocker shaft bracket 510,

the stopper portion 201 and the first rocker shaft bracket 510 are fixed together by a locker 300 sequentially passing through the first hole 203 and the second hole 511.

The limiting part 201 and the first rocker shaft bracket are assembled together through a locking member 300 to prevent the limiting part 201 from moving axially, wherein the locking member 300 can be a bolt, the first hole 203 is a threaded hole, and the locking member 300 passes through the second hole 511 and is screwed in the thread of the first hole 203, so that the limiting part 201 and the first rocker shaft bracket 510 are assembled together to prevent the limiting part 201 from moving axially, and therefore the rocker shaft 200 is prevented from moving axially;

when the limiting part 201 is separated from the first rocker shaft bracket 510, that is, the locking member 300 is removed, the limiting part 201 can axially move relative to the first rocker shaft bracket 510, so that the rocker shaft 200 can move, the rocker arm 100 can move, and when the rocker arm 100 is moved to a position not in pressure contact with the gasket 701 of the valve structure 700, the gasket 701 of the valve structure 700 is adjusted and replaced, so that the process is convenient and fast, the number of processes is small, and the replacement efficiency is high.

The locking member 300 may also be a screw or a wedge, and the limiting portion 201 and the first rocker shaft bracket may be assembled together such that the limiting portion 201 does not move axially. The limiting portion 201 and the first rocker arm shaft support can also be connected in a threaded connection mode or a buckling connection mode, and axial movement of the limiting portion 201 can be avoided.

Wherein the rocker arm shaft 200 further comprises:

a mounting part 202 connected to the stopper part 201, the swing arm 100 being mounted to the mounting part 202, and the mounting part 202 being supported by a second swing arm shaft bracket 520;

the cross-sectional area of the stopper portion 201 is larger than that of the mounting portion 202.

The end of the limiting part 201 is in pressure contact with one side surface of the rocker arm 100, the mounting part 202 penetrates through the rocker arm 100, the second rocker arm shaft bracket 520 is mounted on the mounting part 202, the other side surface of the rocker arm 100 is in pressure contact with the end surface of the second rocker arm 100 bracket, and when the limiting part 201 is connected with the first rocker arm shaft bracket, the limiting part 201 and the second rocker arm shaft bracket 520 limit the rocker arm 100.

The rocker shaft 200 may be a stepped shaft, wherein a shaft portion of the stepped shaft having a larger diameter is a stopper portion 201, and a shaft portion of the stepped shaft having a smaller diameter is an installation shaft. Or two shafts with different outer diameters are connected together, the shaft with the larger diameter is the limiting part 201, and the shaft with the smaller diameter is the mounting part 202.

In order to facilitate the movement of the rocker arm shaft 200, a portion of the limiting portion 201 penetrates the first rocker arm shaft bracket 510, and one end of the limiting portion 201 close to the rocker arm 100 is located outside the first rocker arm shaft bracket 510.

When the stopper portion 201 is separated from the first rocker shaft bracket 510, the rocker shaft 200 can be moved in the axial direction by moving the end closer to the rocker arm 100, and the length of the stopper portion 201 is longer than the length of the first rocker shaft bracket 510. The rocker arm shaft 200 can move axially conveniently, and the problem that the rocker arm shaft 200 is not easy to take out because the limiting part 201 and the mounting part 202 are completely sleeved and covered by the first rocker arm shaft bracket, the rocker arm 100 and the second rocker arm shaft bracket is effectively avoided.

Wherein the rocker arm 100 includes:

a connecting arm 110, one end of the connecting arm 110 being pressed against a gasket 701 of the valve structure 700;

and a sleeve 130, the outer circumference of the sleeve 130 is connected with the other end of the connecting arm 110, and the inner cavity of the sleeve 130 is sleeved on the rocker arm shaft 200.

The sleeve 130 is located between the limiting portion 201 and the second rocker shaft support, and when the limiting portion 201 is connected with the first rocker shaft support 510, the sleeve is limited by the limiting portion 201 and the second rocker shaft support and cannot move axially, so that the rocker arm 100 is prevented from moving left and right, and the rocker arm 100 cannot realize a function of acting on a valve rod end to push open a valve; when the limiting portion 201 is separated from the first rocker shaft bracket 510, the rocker shaft 200 may move axially, so that the limiting portion 201 no longer limits the sleeve 130, the sleeve 130 may move axially, and the rocker arm 100 may move axially, so that the connecting arm 110 of the rocker arm 100 no longer contacts the gasket 701, and the gasket 701 may be replaced.

Wherein, there can be two kinds of connected modes between rocking arm 100 structure and the camshaft 400, and the structure is slightly different, but its effect is the same, specifically as follows:

as shown in fig. 7-10, (1) the rocker arm 100 further comprises:

the mounting arm 140, the mounting arm 140 is connected to the outer circumference of the sleeve 130, and a mounting groove is formed at one end of the mounting arm 140 away from the sleeve 130;

and the rolling member 120 is rotatably installed in the installation groove, and is in press-contact with a cam on the camshaft 400 positioned below the rolling member 120.

Specifically, corresponding through holes are all opened on two sides of the mounting groove, a rotating shaft is respectively installed on the two through holes, the rolling member 120 is installed on the mounting groove, in order to further improve the effect of the rolling member 120, two bearings are arranged on the through holes, and the rotating shaft is installed on the bearings.

The mounting arm 140 is located on the side of the sleeve 130 away from the connecting arm 110, and with the rocker shaft 200 as the center axis, the cam on the cam shaft 400 is located below the rolling element 120, and provides upward pressure, so that the connecting arm 110 provides downward force to press against the shim 701.

As shown in fig. 1-4, (2) the connecting arm 110 includes a first connecting arm 111 and a second connecting arm 112,

one end of the first connecting arm 111 and one end of the second connecting arm 112 are both connected to the sleeve 130, and the other end of the first connecting arm 111 and the other end of the second connecting arm 112 are respectively pressed against the corresponding gasket 701 of the valve structure 700;

the rocker arm 100 further comprises:

and a rolling member 120, wherein the rolling member 120 is rotatably disposed between the first connecting arm 111 and the second connecting arm 112, and is in pressure contact with a cam on the camshaft 400 located above the rolling member.

All set up the through-hole on first linking arm 111 with second linking arm 112, a pivot is corresponding to wear to establish two on the through-hole, rolling member 120 sets up in the pivot, in order to further promote the effect of rolling member 120, can be in two be provided with the bearing on the through-hole, the pivot is installed on the bearing.

The cam on the camshaft 400 is located above the rolling member 120, and the rolling member 120 is pressed against the rolling member 120 by the cam, so that the pressing force of the rolling member 120 is transmitted to the gasket 701 of the corresponding valve structure 700 through the first connecting arm 111 and the second connecting arm 112, and the first connecting arm 111 and the second connecting arm 112 are pressed against the gasket 701 of the corresponding valve structure 700.

The installation structure of the rocker arm 100 of the embodiment is characterized in that the rocker arm 100 is limited by the limiting part 201 and the bracket of the second rocker arm 100, so that the rocker arm 100 can normally move, the limiting part 201 is disassembled, the rocker arm shaft 200 can move, the rocker arm 100 can move, the gasket 701 can be adjusted and replaced, the adjustment and replacement of the gasket 701 can be realized without disassembling the camshaft 400, the operation is simple and convenient, the number of processes is small, and the working efficiency is high. Further, the technical problems that when the gasket 701 is obtained by pressing the rocker arm 100 on the valve replacing structure 700 in the motorcycle in the prior art, the camshaft 400 connected with the rocker arm 100 needs to be disassembled, and the gasket 701 can be adjusted and replaced by rotating the rocker arm 100, so that the adjusting and replacing processes of the gasket 701 are complex, the disassembling processes are multiple, and the working efficiency is low are effectively solved.

As shown in fig. 11-13, in some embodiments of the present application, the position limiter is a bushing 800, specifically:

a bushing 800, which is sleeved on the rocker arm shaft 200 and used for limiting the axial direction of the rocker arm 100 together with the second rocker arm shaft bracket 520;

the bushing 800 is removed so that the rocker arm 100 can move between the two rocker shaft 200 supports.

Specifically, the inner cavity of the bushing 800 is detachably sleeved on the rocker shaft 200, the inner cavity of the first rocker shaft bracket 510 is sleeved on the bushing 800, the bushing 800 may be used for limiting the position of the rocker arm 100 together with the second rocker shaft bracket 520, preferably, a portion of the bushing 800 is located between the first rocker shaft bracket and the rocker arm, and the bushing is used for limiting the position of the rocker arm along the axial direction of the rocker shaft; preventing the rocker arm 100 from moving left and right, resulting in the rocker arm 100 not being able to perform the function of acting on the valve stem end to push the valve open.

Further, the first rocker shaft bracket 510 is sleeved on the bushing 800, the bushing 800 is provided with a first connecting portion, the rocker shaft 200 is provided with a second connecting portion, and the bushing 800 and the rocker shaft 200 are connected through the first connecting portion and the second connecting portion.

The first connection part may be a snap, and the second connection part may be a snap groove, into which the snap is snapped, so that the bushing 800 and the rocker shaft 200 are connected.

In the present embodiment, the first and second electrodes are,

the first connecting part is provided with a first mounting hole 801;

the second connecting part is provided with a second mounting hole 204;

a third mounting hole 512 is formed in the first rocker shaft support 510;

the bushing 800 is disposed on the rocker shaft 200 and cooperates with the second rocker shaft bracket 520 to restrain the rocker arm 100 to the rocker shaft 200 by passing a fastener 600 through the third mounting hole 512, the second mounting hole 204 and the first mounting hole 801 in this order.

The first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 can be assembled together by sequentially inserting the fastener 600 into the third mounting hole 512, the second mounting hole 204 and the first mounting hole 801, the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 can be disassembled by disassembling the fastener 600, the bushing 800 can be disassembled, the rocker arm 100 can be moved between the two rocker shaft 200 brackets, and after moving the rocker arm 100 left and right, the connecting arm 110 of the rocker arm 100 can be prevented from being pressed against the gasket 701 of the valve structure 700, so that the gasket 701 of the valve structure 700 can be directly disassembled and replaced.

Specifically, the first mounting hole 801 is a threaded hole,

the fastening member 600 is a bolt that is,

the bolt passes through the third mounting hole 512 and the second mounting hole 204 and is screwed with the first mounting hole 801.

The bolt is inserted through the third mounting hole 512 and the second mounting hole 204 and is screwed into the thread of the first mounting hole 801, so that the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 are assembled together, and the bushing 800 can be disassembled by unscrewing the bolt so that the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 are disassembled. The direction of the arrow shown in fig. 3 is a direction in which the rocker arm 100 can move after the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 are disassembled.

The fastener 600 may be a screw or another wedge, and the bushing 800 may be coupled to the rocker shaft 200 and the first rocker shaft bracket by snap-fitting or by providing internal and external threads on the bushing 800, and may be easily disassembled as long as the first rocker shaft bracket 510, the bushing 800, and the rocker shaft 200 can be assembled together.

To facilitate removal of the bushing 800, an end of the bushing 800 proximate the rocker arm 100 extends outside the first rocker shaft bracket 510. The bushing 800 can be moved by pushing the bushing 800 of the first rocker shaft bracket outer portion directly after the fastener 600 is removed to facilitate removal, and when the bushing 800 is restraining the rocker arm 100, the bushing 800 can be moved directly after the fastener 600 is removed.

To further facilitate removal of the bushing 800, the bushing 800 has a length greater than the first rocker shaft bracket 510. The length of the bushing 800 is greater than that of the first rocker shaft bracket, so that the problem that when the bushing 800 is dismounted, the bushing 800 is completely positioned in the first rocker shaft bracket and is not easy to dismount is effectively solved.

According to the rocker arm 100 mounting structure with the bushing 800 provided by the embodiment, when the gasket 701 pressed with the rocker arm 100 on the valve structure 700 needs to be replaced, the bushing 800 is detached, so that the rocker arm 100 cannot be limited, the rocker arm 100 can move between two rocker arm shaft 200 supports, and after the rocker arm 100 is moved, the gasket 701 can be easily adjusted and replaced, convenience and rapidness are achieved, the camshaft 400 does not need to be detached, and therefore the gasket 701 is less in adjusting and replacing processes, and the working efficiency is high. Further, the technical problems that when the gasket 701 pressed with the rocker arm on the valve structure 700 is replaced, the camshaft 400 connected with the rocker arm needs to be disassembled, and the adjustment and replacement of the gasket 701 can be realized by rotating the rocker arm in the motorcycle in the prior art, so that the adjustment and replacement processes of the gasket 701 are complex, the number of disassembly processes is large, and the working efficiency is low are effectively solved.

In some embodiments of the present application, the limiting member may also have another structure, and an elastic protrusion disposed on the rocker shaft limits the rocker arm by the protrusion under the action of elastic force, and when the rocker arm is pressed down, the rocker arm may be detachably adjusted by the elastic protrusion, and the limiting member may also limit the rocker arm by another device, and after the rocker arm and the spacer are detached, the rocker arm and the spacer may be adjusted.

The embodiment of the invention also provides an engine, which comprises the rocker arm 100 mounting structure, and can effectively solve the technical problems that when the gasket 701 pressed with the rocker arm 100 on the valve replacing structure 700 in the motorcycle in the prior art is replaced, the camshaft 400 connected with the rocker arm 100 needs to be detached, and the gasket 701 can be adjusted and replaced by rotating the rocker arm 100, so that the gasket 701 is adjusted and replaced in a complex process, a plurality of detaching processes are required, and the working efficiency is low.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The embodiment of the invention also provides a motorcycle which comprises the engine, and the motorcycle can effectively solve the technical problems that when the gasket 701 is obtained by pressing the rocker arm 100 on the valve replacing structure 700, the cam shaft 400 connected with the rocker arm 100 needs to be disassembled, and the gasket 701 can be adjusted and replaced by rotating the rocker arm 100 in the motorcycle in the prior art, so that the adjusting and replacing processes of the gasket 701 are complex, the disassembling processes are multiple, and the working efficiency is low.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.