Rocker arm mounting structure, engine and motorcycle

Abstract

The embodiments of the present invention provide a rocker arm mounting structure, an engine and a motorcycle, wherein the mounting structure includes: a rocker arm, which is used to press a gasket of a valve structure; and a rocker arm shaft, which is rotatably arranged on the rocker arm body and is used to install a first rocker arm shaft bracket and a second rocker arm shaft bracket, wherein the rocker arm is located between the first rocker arm shaft bracket and the second rocker arm shaft bracket; and a limiter, which is detachably arranged on the rocker arm shaft, and is used to axially limit the rocker arm together with the second rocker arm shaft bracket. The rocker arm is limited by the limiter and the second rocker arm bracket together, so that the rocker arm can move normally. By adjusting the limiter, the rocker arm shaft can be moved, thereby making the rocker arm movable, and then the gasket can be adjusted and replaced, and the adjustment and replacement of the gasket can be achieved without removing the camshaft. The operation is simple and convenient, with fewer processes and high work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of motorcycles, and in particular to a rocker arm mounting structure, an engine and a motorcycle. Background Art

[0002] Motorcycles are two-wheeled or three-wheeled vehicles driven by gasoline engines and steered by handlebars. They are light, flexible, and fast, and are widely used for patrols, passenger and cargo transportation, and are also used as sports equipment. In general, motorcycles are divided into street bikes, road racing motorcycles, off-road motorcycles, cruisers, and touring bikes.

[0003] The rocker arm in a motorcycle is actually a double-arm lever, which is used to change the direction of the force transmitted from the push rod and act on the end of the valve stem to push the valve open. The ratio of the length of the two arms of the rocker arm is called the rocker arm ratio, which is about 1.2 to 1.8, and the long arm end is used to push the valve. The working surface of the rocker arm head is generally made into a cylindrical shape, and when the rocker arm swings, it can roll along the end face of the valve stem, so that the force between the two can act along the valve axis as much as possible. Lubricating oil channels and oil holes are also drilled in the rocker arm. In the threaded hole at the short arm end of the rocker arm, the adjustment screw for adjusting the valve clearance is screwed in, and the head ball of the screw is crimped with the concave ball seat at the top of the push rod. When the motorcycle engine performs the ignition action, the rocker arm swings specifically through the cooperation of the rocker arm and the camshaft, thereby driving the valve structure at one end of the rocker arm to work.

[0004] However, in the process of implementing the technical solution of the invention in the embodiment of the present application, the inventors of the present application found that there are at least the following technical problems in the prior art:

[0005] In the motorcycle of the prior art, when replacing the gasket crimped with the rocker arm on the valve structure, it is necessary to disassemble the camshaft connected to the rocker arm, and then adjust and replace the gasket by rotating the rocker arm, which leads to technical problems such as complicated adjustment and replacement process of the gasket, multiple disassembly steps and low work efficiency. Summary of the invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide a rocker arm mounting structure, an engine and a motorcycle, which are used to solve the technical problems in the prior art motorcycle that when replacing the gasket crimped with the rocker arm on the valve structure, the camshaft connected to the rocker arm needs to be disassembled, and the gasket can only be adjusted and replaced by rotating the rocker arm, resulting in a complicated adjustment and replacement process of the gasket, multiple disassembly steps and low work efficiency.

[0007] To solve the above technical problems, the embodiments of the present invention adopt the following technical solutions:

[0008] An embodiment of the present invention provides a rocker arm mounting structure, the mounting structure comprising:

[0009] Rocker arm, used to press the gasket of the valve structure;

[0010] and a rocker shaft, rotatably disposed on the rocker body and used to mount a first rocker shaft bracket and a second rocker shaft bracket, wherein the rocker is located between the first rocker shaft bracket and the second rocker shaft bracket;

[0011] A limiting member is detachably disposed on the rocker shaft, and is used to axially limit the rocker arm together with the second rocker shaft bracket; removing the limiting member can allow the rocker arm to move axially relative to the first rocker shaft bracket and / or the second rocker shaft bracket.

[0012] Furthermore, the rocker arm shaft comprises:

[0013] A limiting part, wherein the limiting member is a limiting part;

[0014] A mounting portion connected to the limiting portion, the rocker arm is mounted on the mounting portion, and the mounting portion is supported by a second rocker arm shaft bracket;

[0015] The cross-sectional area of ​​the limiting portion is greater than the cross-sectional area of ​​the mounting portion.

[0016] Furthermore, part of the limiting portion is inserted into the first rocker shaft bracket, and one end of the limiting portion close to the rocker arm is located outside the first rocker shaft bracket.

[0017] Furthermore, the limiting portion is provided with a first hole, and the first rocker shaft bracket is provided with a second hole.

[0018] The locking member passes through the first hole and the second hole in sequence to fix the limiting portion and the first rocker shaft bracket together.

[0019] Furthermore, the rocker arm comprises:

[0020] A connecting arm, one end of which is crimped to a gasket of the valve structure;

[0021] And a sleeve, the outer periphery of the sleeve is connected to the other end of the connecting arm, and the inner cavity of the sleeve is sleeved on the rocker arm shaft.

[0022] Furthermore, the rocker arm further comprises:

[0023] A mounting arm, the mounting arm being connected to the outer periphery of the sleeve, and a mounting groove being formed at one end of the mounting arm away from the sleeve;

[0024] and a rolling element, which is rotatably mounted in the mounting groove and is pressed against a cam on a camshaft located below the rolling element.

[0025] Furthermore, the connecting arm includes a first connecting arm and a second connecting arm,

[0026] One end of the first connecting arm and one end of the second connecting arm are both connected to the sleeve, and the other end of the first connecting arm and the other end of the second connecting arm are respectively crimped to the gasket of the corresponding valve structure;

[0027] The rocker arm also includes:

[0028] A rolling member is rotatably disposed between the first connecting arm and the second connecting arm and is pressed against a cam on a camshaft located above the rolling member.

[0029] The implementation of the present invention further provides an engine, which includes the rocker arm mounting structure as described above.

[0030] The present invention also provides a motorcycle, which includes the engine as described above.

[0031] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0032] The embodiment of the present invention provides a rocker arm installation structure, the installation structure includes: a rocker arm, a gasket for crimping a valve structure; and a rocker arm shaft, which is rotatably arranged on the rocker arm body and is used to install a first rocker arm shaft bracket and a second rocker arm shaft bracket, the rocker arm is located between the first rocker arm shaft bracket and the second rocker arm shaft bracket; a limiter, the limiter is detachably arranged on the rocker arm shaft, the limiter is used to axially limit the rocker arm together with the second rocker arm shaft bracket; removing the limiter can make the rocker arm move axially relative to the first rocker arm shaft bracket and / or the second rocker arm shaft bracket. The rocker arm is limited by the limiter and the second rocker arm bracket together, so that the rocker arm can move normally, and the rocker arm shaft can be moved by adjusting the limiter, so that the rocker arm can move, and then the gasket can be adjusted and replaced, and the adjustment and replacement of the gasket can be achieved without removing the camshaft, the operation is simple and convenient, and there are fewer processes and high work efficiency. This effectively solves the technical problem that when replacing a gasket crimped to a rocker arm on a valve structure in a motorcycle of the prior art, the camshaft connected to the rocker arm needs to be disassembled, and the gasket can only be adjusted and replaced by rotating the rocker arm, which results in a complicated adjustment and replacement process of the gasket, multiple disassembly steps, and low work efficiency.

[0033] An embodiment of the present invention also provides an engine, which includes a rocker arm mounting structure with a bushing as described above. The engine can effectively solve the technical problem in the prior art motorcycle that when replacing a gasket crimped on a rocker arm on a valve structure, the camshaft connected to the rocker arm needs to be disassembled, and the gasket needs to be adjusted and replaced only by rotating the rocker arm, resulting in a complicated adjustment and replacement process for the gasket, multiple disassembly steps, and low work efficiency.

[0034] An embodiment of the present invention further provides a motorcycle, comprising an engine as described above, and the motorcycle can effectively solve the technical problem in the prior art that when replacing a gasket crimped on a rocker arm on a valve structure, the camshaft connected to the rocker arm needs to be disassembled, and the gasket needs to be adjusted and replaced only by rotating the rocker arm, resulting in a complicated adjustment and replacement process of the gasket, multiple disassembly steps, and low work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0036] Figure 1 It is a structural schematic diagram of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion of a camshaft located above a rolling element is connected to a first rocker arm shaft bracket;

[0037] Figure 2 It is a schematic structural diagram of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion of a camshaft located above a rolling element is separated from a first rocker arm shaft bracket;

[0038] Figure 3 It is a partial cross-sectional view of a camshaft of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion located above a rolling element is connected to a first rocker arm shaft bracket;

[0039] Figure 4 It is a partial cross-sectional view of a camshaft of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion of the camshaft located above a rolling element is separated from a first rocker arm shaft bracket;

[0040] Figure 5 is a structural schematic diagram of a rocker arm shaft of a rocker arm mounting structure provided by an embodiment of the present invention;

[0041] Figure 6 is a cross-sectional view of a rocker arm shaft of a rocker arm mounting structure provided by an embodiment of the present invention;

[0042] Figure 7 It is a structural schematic diagram of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion of a camshaft located below a rolling element is connected to a first rocker arm shaft bracket;

[0043] Figure 8 It is a schematic structural diagram of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion of a camshaft located below a rolling element is separated from a first rocker arm shaft bracket;

[0044] Fig. 9 It is a partial cross-sectional view of a camshaft of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion located below a rolling element is connected to a first rocker arm shaft bracket;

[0045] Fig.10 It is a partial cross-sectional view of a camshaft of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion of the camshaft located below a rolling element is separated from a first rocker arm shaft bracket;

[0046] Fig.11 is a structural schematic diagram of another structure of a rocker arm mounting structure provided by an embodiment of the present invention;

[0047] Fig.12 is a cross-sectional view of another structure of a rocker arm mounting structure provided by an embodiment of the present invention in an assembled state;

[0048] Fig.13 It is a cross-sectional view of another structure of a rocker arm mounting structure provided by an embodiment of the present invention in a disassembled state.

[0049] in:

[0050] 100, rocker arm; 110, connecting arm; 111, first connecting arm; 112, second connecting arm; 120, rolling element; 130, sleeve; 140, mounting arm; 200, rocker shaft; 201, limiting portion; 202, mounting portion; 203, first hole; 204, second mounting hole; 300, locking member; 400, camshaft; 510, first rocker shaft bracket; 511, second hole; 512, third mounting hole; 520, second rocker shaft bracket; 600, fastener; 700, valve structure; 701, gasket; 800, bushing; 801, first mounting hole. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0052] 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", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0053] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0054] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0055] The present application claims protection for a motorcycle, which can be any model of motorcycle products on the market, and is not specifically limited here. It can be understood that in addition to the frame, electronic control system, transmission system, and wheels, the motorcycle also includes an engine. The engine is the heart of the motorcycle and is used to provide the power necessary for normal driving. The engine includes a valve mechanism and a rocker arm 100 structure that cooperates with it. The rocker arm 100 structure is used to drive the valve mechanism to move and do work.

[0056] like Figure 1 As shown, Figure 1 It is a structural schematic diagram of a rocker arm mounting structure provided by an embodiment of the present invention, in which a limiting portion of a camshaft located above a rolling element is connected to a first rocker arm shaft bracket;

[0057] like Figure 1-10 As shown, this embodiment provides a rocker arm 100 installation structure, and the installation structure includes:

[0058] The rocker arm 100 is pressed against a gasket 701 of a valve structure 700;

[0059] and a rocker shaft 200, which is rotatably disposed on the rocker arm 100 body and is used to install a first rocker shaft bracket 510 and a second rocker shaft bracket 520, wherein the rocker arm 100 is located between the first rocker shaft bracket 510 and the second rocker shaft bracket 520;

[0060] A limiting member is detachably disposed on the rocker shaft, and is used to axially limit the rocker arm together with the second rocker shaft bracket; removing the limiting member can allow the rocker arm to move axially relative to the first rocker shaft bracket and / or the second rocker shaft bracket.

[0061] The rocker arm is limited by the limiting member and the second rocker arm bracket together, so that the rocker arm can move normally. The limiting member is adjusted to allow the rocker arm shaft to move, so that the rocker arm can move, and the gasket can be adjusted and replaced. There is no need to remove the camshaft to adjust and replace the gasket. The operation is simple and convenient, with fewer processes and high work efficiency. This effectively solves the technical problem that when replacing the gasket crimped with the rocker arm on the valve structure of the motorcycle in the prior art, the camshaft connected to the rocker arm needs to be disassembled, and the gasket can be adjusted and replaced by rotating the rocker arm, resulting in a complicated adjustment and replacement process of the gasket, and many disassembly processes and low work efficiency.

[0062] The rocker arm shaft 200 includes:

[0063] The limiting part 201, in this embodiment, the limiting member is the limiting part, wherein when the limiting part 201 and the first rocker shaft bracket 510 are connected to each other, the limiting part 201 and the second rocker shaft bracket 520 jointly limit the axial position of the rocker arm 100;

[0064] When the limiting 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.

[0065] 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, 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 and cannot move axially.

[0066] The first rocker shaft bracket 510 is connected to the limiting portion 201, specifically:

[0067] The limiting portion 201 is provided with a first hole 203, and the first rocker shaft bracket 510 is provided with a second hole 511.

[0068] The locking member 300 passes through the first hole 203 and the second hole 511 in sequence, so as to fix the limiting portion 201 and the first rocker shaft bracket 510 together.

[0069] The limiting part 201 and the first rocker shaft bracket are assembled together by the locking member 300 to prevent the limiting part 201 from axial movement, wherein the locking member 300 may be a bolt, the first hole 203 is a threaded hole, the locking member 300 passes through the second hole 511 and is screwed into 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 axial movement, thereby preventing the rocker shaft 200 from axial movement;

[0070] When the limiting portion 201 is separated from the first rocker shaft bracket 510, the locking member 300 is disassembled, and the limiting portion 201 can perform axial relative movement with the first rocker shaft bracket 510, so that the rocker shaft 200 can be moved, and the rocker arm 100 can be moved. When the rocker arm 100 is moved to a point where it is no longer crimped on the gasket 701 of the valve structure 700, the gasket 701 of the valve structure 700 is adjusted and replaced. The process is convenient and quick, with fewer steps and high replacement efficiency.

[0071] The locking member 300 may also be a screw or a wedge, etc., which can assemble the limiting portion 201 and the first rocker shaft bracket together so that the limiting portion 201 does not move axially. The limiting portion 201 and the first rocker shaft bracket may also be connected by threaded connection or snap connection, so that the limiting portion 201 does not move axially.

[0072] Wherein, the rocker arm shaft 200 further includes:

[0073] A mounting portion 202 connected to the limiting portion 201 , the rocker arm 100 is mounted on the mounting portion 202 , and the mounting portion 202 is supported by a second rocker arm shaft bracket 520 ;

[0074] The cross-sectional area of ​​the limiting portion 201 is greater than the cross-sectional area of ​​the mounting portion 202 .

[0075] The end of the limiting portion 201 is crimped with one side surface of the rocker arm 100, the mounting portion 202 passes through the rocker arm 100, the second rocker arm shaft bracket 520 is mounted on the mounting portion 202, and the other side surface of the rocker arm 100 is crimped with the end surface of the second rocker arm 100 bracket. When the limiting portion 201 is connected to the first rocker arm shaft bracket, the limiting portion 201 and the second rocker arm shaft bracket 520 limit the rocker arm 100.

[0076] The rocker arm shaft 200 may be a stepped shaft, wherein the shaft portion with a larger diameter is the stopper 201 and the shaft portion with a smaller diameter is the mounting shaft. Alternatively, two shafts with different outer diameters are connected together, wherein the shaft with a larger diameter is the stopper 201 and the shaft with a smaller diameter is the mounting portion 202.

[0077] In order to facilitate the movement of the rocker shaft 200 , part of the limiting portion 201 is inserted into the first rocker shaft bracket 510 , and one end of the limiting portion 201 close to the rocker arm 100 is located outside the first rocker shaft bracket 510 .

[0078] When the limiting portion 201 is separated from the first rocker shaft bracket 510, the rocker shaft 200 can be axially moved by moving one end close to the rocker arm 100. Furthermore, the length of the limiting portion 201 is greater than the length of the first rocker shaft bracket 510. This facilitates the axial movement of the rocker shaft 200 and effectively avoids the problem that the limiting portion 201 and the mounting portion 202 are completely covered by the first rocker shaft bracket, the rocker arm 100 and the second rocker shaft bracket, making it difficult to remove the rocker shaft 200.

[0079] Wherein, the rocker arm 100 comprises:

[0080] A connecting arm 110, one end of which is pressed against a gasket 701 of the valve structure 700;

[0081] And a sleeve 130 , the outer periphery of the sleeve 130 is connected to the other end of the connecting arm 110 , and the inner cavity of the sleeve 130 is sleeved on the rocker arm shaft 200 .

[0082] The sleeve 130 is located between the limiting portion 201 and the second rocker shaft bracket. When the limiting portion 201 is connected to the first rocker shaft bracket 510, it is limited by the limiting portion 201 and the second rocker shaft bracket and cannot move axially, thereby preventing the rocker arm 100 from moving left and right, resulting in the rocker arm 100 being unable to achieve the function of acting on the valve stem end to push open the valve; when the limiting portion 201 is separated from the first rocker shaft bracket 510, the rocker shaft 200 can move axially, so that the limiting portion 201 no longer limits the sleeve 130, so that the sleeve 130 can move axially, and then the rocker arm 100 can move axially, so that the connecting arm 110 of the rocker arm 100 no longer presses the gasket 701, so that the gasket 701 can be replaced.

[0083] There are two ways of connecting the rocker arm 100 and the camshaft 400, and the structures are slightly different, but the effects are the same, as follows:

[0084] like Figure 7-10 As shown, (1) the rocker arm 100 further includes:

[0085] A mounting arm 140, wherein the mounting arm 140 is connected to the outer periphery of the sleeve 130, and a mounting groove is formed at one end of the mounting arm 140 away from the sleeve 130;

[0086] and a rolling member 120, wherein the rolling member 120 is rotatably mounted in the mounting groove and is pressed against a cam on the camshaft 400 located below the rolling member 120.

[0087] Specifically, corresponding through holes are opened on both sides of the installation groove, and a rotating shaft is respectively installed on the two through holes. The rolling element 120 is installed on the installation groove. In order to further improve the effect of the rolling element 120, bearings can be arranged on the two through holes, and the rotating shaft is installed on the bearings.

[0088] The mounting arm 140 is located on the side of the sleeve 130 away from the connecting arm 110 , with the rocker arm shaft 200 as the central axis. The cam on the camshaft 400 is located below the rolling element 120 , providing pressure upward so that the connecting arm 110 provides a force downward to press the gasket 701 .

[0089] like Figure 1-4 As shown, (2) the connecting arm 110 includes a first connecting arm 111 and a second connecting arm 112,

[0090] 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 crimped to the gasket 701 of the corresponding valve structure 700;

[0091] The rocker arm 100 further includes:

[0092] The rolling member 120 is rotatably disposed between the first connecting arm 111 and the second connecting arm 112 and is pressed against a cam on the camshaft 400 located above the rolling member 120 .

[0093] Through holes are provided on the first connecting arm 111 and the second connecting arm 112, and a rotating shaft is correspondingly arranged on the two through holes. The rolling element 120 is arranged on the rotating shaft. In order to further improve the effect of the rolling element 120, bearings can be arranged on the two through holes, and the rotating shaft is installed on the bearings.

[0094] Among them, the cam on the camshaft 400 is located above the rolling member 120, and the rolling member 120 is crimped by the cam. The rolling member 120 transmits the crimping force to the gasket 701 of the corresponding valve structure 700 through the first connecting arm 111 and the second connecting arm 112, thereby crimping the first connecting arm 111 and the second connecting arm 112 to the gasket 701 of the corresponding valve structure 700.

[0095] The rocker arm 100 installation structure of this embodiment limits the rocker arm 100 through the limiting part 201 and the second rocker arm 100 bracket, so that the rocker arm 100 can move normally. By removing the limiting part 201, the rocker arm shaft 200 can be moved, so that the rocker arm 100 can be moved, and then the gasket 701 can be adjusted and replaced, and there is no need to remove the camshaft 400 to adjust and replace the gasket 701. The operation is simple and convenient, with fewer processes and high work efficiency. It effectively solves the technical problem that when replacing the gasket 701 crimped with the rocker arm 100 on the valve structure 700 in the motorcycle of the prior art, the camshaft 400 connected to the rocker arm 100 needs to be removed, and the gasket 701 can be adjusted and replaced by rotating the rocker arm 100, resulting in a complicated adjustment and replacement process of the gasket 701, and many disassembly processes and low work efficiency.

[0096] like Figure 11-13 As shown, in some embodiments of the present application, the limiting member is a bushing 800, specifically:

[0097] The bushing 800 is sleeved on the rocker arm shaft 200 and is used to limit the axial direction of the rocker arm 100 together with the second rocker arm shaft bracket 520;

[0098] The bushing 800 is removed so that the rocker arm 100 can move between the two rocker arm shaft 200 brackets.

[0099] Specifically, the inner cavity of the bushing 800 is detachably mounted on the rocker shaft 200, and the inner cavity of the first rocker shaft bracket 510 is mounted on the bushing 800. The bushing 800 can be used to limit the rocker arm 100 together with the second rocker shaft bracket 520. Preferably, part of the bushing 800 is located between the first rocker shaft bracket and the rocker arm, and the bushing is used to limit 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 being unable to act on the valve stem end to push open the valve.

[0100] Furthermore, 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 via the first connecting portion and the second connecting portion.

[0101] The first connection portion may be a buckle, and the second connection portion may be a slot, and the buckle is buckled into the slot to connect the bushing 800 and the rocker shaft 200 .

[0102] In this embodiment,

[0103] The first connecting portion has a first mounting hole 801;

[0104] The second connecting portion has a second mounting hole 204;

[0105] The first rocker shaft bracket 510 is provided with a third mounting hole 512;

[0106] The fastener 600 passes through the third mounting hole 512 , the second mounting hole 204 and the first mounting hole 801 in sequence, so that the bushing 800 is disposed on the rocker shaft 200 and together with the second rocker shaft bracket 520 , limits the rocker arm 100 on the rocker shaft 200 .

[0107] By having the fastener 600 pass through the third mounting hole 512, the second mounting hole 204 and the first mounting hole 801 in sequence, the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 can be assembled together, and by removing the fastener 600, the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 can be disassembled, and the bushing 800 can be removed so that the rocker arm 100 can be moved between the two rocker shaft 200 brackets. After the rocker arm 100 is moved left and right, the connecting arm 110 of the rocker arm 100 is no longer crimped with the gasket 701 of the valve structure 700, so that the gasket 701 of the valve structure 700 can be directly removed for replacement.

[0108] Specifically, the first mounting hole 801 is a threaded hole.

[0109] The fastener 600 is a bolt.

[0110] The bolt passes through the third mounting hole 512 and the second mounting hole 204 and is threadedly connected to the first mounting hole 801 .

[0111] The bolt passes 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 as to assemble the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 together. By unscrewing the bolt, the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 can be disassembled, so that the bushing 800 can be removed. Figure 3 The arrow direction is the direction in which the rocker arm 100 can move after the first rocker arm shaft bracket 510, the bushing 800 and the rocker arm shaft 200 are disassembled.

[0112] The fastener 600 may also be a screw or other wedge, and the bushing 800, the rocker shaft 200 and the first rocker shaft bracket may also be connected by a snap-fitting method or by providing internal and external threads on the bushing 800. As long as the first rocker shaft bracket 510, the bushing 800 and the rocker shaft 200 can be assembled together and can be easily disassembled, it can be done.

[0113] In order to facilitate the removal of the bushing 800, one end of the bushing 800 close to the rocker arm 100 extends outside the first rocker arm shaft bracket 510. After the fastener 600 is removed, the bushing 800 can be directly pushed outside the first rocker arm shaft bracket to move the bushing 800, thereby facilitating the removal. When the bushing 800 is used to limit the rocker arm 100, the bushing 800 can be directly moved after the fastener 600 is removed.

[0114] In order to further facilitate the removal of the bushing 800, the length of the bushing 800 is greater than the first rocker shaft bracket 510. The length of the bushing 800 is greater than the first rocker shaft bracket, which can effectively solve the problem that when removing the bushing 800, the bushing 800 is completely located in the first rocker shaft bracket and is not easy to remove.

[0115] The rocker arm 100 installation structure with the bushing 800 provided in this embodiment, when it is necessary to replace the gasket 701 crimped with the rocker arm 100 on the valve structure 700, by removing the bushing 800, the bushing 800 cannot limit the rocker arm 100, so that the rocker arm 100 can be moved between the two rocker arm shaft 200 brackets. After the rocker arm 100 is moved away, the gasket 701 can be easily adjusted and replaced, which is convenient and quick, and there is no need to disassemble the camshaft 400, so that the process of adjusting and replacing the gasket 701 is less and the work efficiency is high. In addition, the technical problem that when replacing the gasket 701 crimped with the rocker arm on the valve structure 700 in the motorcycle of the prior art, the camshaft 400 connected to the rocker arm needs to be disassembled, and the gasket 701 can be adjusted and replaced by rotating the rocker arm, resulting in a complicated adjustment and replacement process of the gasket 701, and many disassembly processes and low work efficiency is effectively solved.

[0116] In some embodiments of the present application, the limiting member may also be other structures, an elastic protrusion arranged on the rocker arm shaft, the protrusion limits the rocker arm under the action of elastic force, and when pressed, the rocker arm can be detachably adjusted thereon. The limiting member may also be other structures that can limit the rocker arm, and the rocker arm and the gasket can be adjusted after disassembly.

[0117] An embodiment of the present invention further provides an engine, which includes a rocker arm 100 installation structure as described above. The engine can effectively solve the technical problem in the prior art motorcycle that when replacing the gasket 701 crimped on the rocker arm 100 on the valve structure 700, the camshaft 400 connected to the rocker arm 100 needs to be disassembled, and the gasket 701 needs to be adjusted and replaced only by rotating the rocker arm 100, resulting in a complicated adjustment and replacement process of the gasket 701, multiple disassembly steps, and low work efficiency.

[0118] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0119] An embodiment of the present invention further provides a motorcycle, comprising an engine as described above, and the motorcycle can effectively solve the technical problem in the prior art that when replacing the gasket 701 crimped onto the rocker arm 100 on the valve structure 700, the camshaft 400 connected to the rocker arm 100 needs to be disassembled, and the gasket 701 needs to be adjusted and replaced only by rotating the rocker arm 100, resulting in a complicated adjustment and replacement process of the gasket 701, multiple disassembly steps, and low work efficiency.

[0120] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0121] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0122] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rocker arm mounting structure, characterized in that: The mounting structure comprises: Rocker arms, used to press-fit gaskets of valve structures; and a rocker shaft, rotatably disposed in the rocker body, wherein the rocker is located between the first rocker shaft bracket and the second rocker shaft bracket; A limiting member, the limiting member is detachably provided on the rocker shaft, and the limiting member is used to axially limit the rocker arm together with the second rocker shaft bracket; the limiting member is removed to allow the rocker arm to axially move relative to the first rocker shaft bracket and / or the second rocker shaft bracket; The limiting member includes a limiting portion; A mounting portion connected to the limiting portion, the rocker arm is mounted on the mounting portion, and the mounting portion is supported by a second rocker arm shaft bracket; The limiting portion limits one end of the rocker arm; The outer diameter of the limiting portion is greater than the outer diameter of the mounting portion; The limiting portion is partially disposed in the first rocker arm shaft bracket, and one end of the limiting portion close to the rocker arm is located outside the first rocker arm shaft bracket; When the limiting portion moves axially along the rocker shaft in a direction away from the rocker arm, the rocker arm can move axially along the rocker shaft between the first rocker shaft bracket and the second rocker shaft bracket in the same direction.

2. The rocker arm mounting structure according to claim 1, characterized in that: The limiting portion is provided with a first hole, and the first rocker shaft bracket is provided with a second hole. The locking member passes through the first hole and the second hole in sequence to fix the limiting portion and the first rocker shaft bracket together.

3. The rocker arm mounting structure according to claim 1, characterized in that: The rocker arm comprises: A connecting arm, one end of which is crimped to a gasket of the valve structure; And a sleeve, the outer periphery of the sleeve is connected to the other end of the connecting arm, and the inner cavity of the sleeve is sleeved on the rocker arm shaft.

4. The rocker arm mounting structure according to claim 3, characterized in that: The first rocker arm shaft bracket and the second rocker arm shaft bracket radially limit the rocker arm; The rocker arm also includes: A mounting arm, the mounting arm being connected to the outer periphery of the sleeve, and a mounting groove being formed at one end of the mounting arm away from the sleeve; and a rolling element, which is rotatably mounted in the mounting groove and is pressed against a cam on a camshaft located below the rolling element.

5. The rocker arm mounting structure according to claim 4, characterized in that: 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 to the sleeve, and the other end of the first connecting arm and the other end of the second connecting arm are respectively crimped to the gasket of the corresponding valve structure; The rocker arm also includes: A rolling member is rotatably disposed between the first connecting arm and the second connecting arm and is pressed against a cam on a camshaft located above the rolling member.

6. An engine, characterized in that: The engine comprises a rocker arm mounting structure as described in any one of claims 1-5.

7. A motorcycle, characterized in that: The motorcycle includes the engine as claimed in claim 6.

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