Rocker arm, valve distribution structure and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses a rocker arm, a valve distribution structure and a vehicle. The rocker arm comprises a rocker arm body, an idler wheel and at least two fork arms, a shaft hole used for being connected with a main shaft is formed in the rocker arm, the rocker arm body is symmetrical about a first plane, the fork arms are connected to the rocker arm body and used for being connected to at least two air valves in a one-to-one correspondence mode, and the fork arms are symmetrical about the first plane. The roller is arranged at one end, far away from the two fork arms, of the rocker arm body and is of a symmetrical structure relative to the first plane, the rocker arm can directly control at least two air valves at the same time, the air distribution efficiency is improved, an air valve bridge structure is omitted, the number of parts is reduced, the cost is reduced, the space utilization rate is improved, and the compactness of an air distribution mechanism is improved; the rollers are symmetrical about the first plane, so that eccentric wear is effectively avoided, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially involves rocker, valve gas distribution structure and vehicle. BACKGROUND

[0002] Valve rocker is the important component indispensable to automobile engine, is installed on the main shaft, and there is a certain angle rotating gap between valve rocker and main shaft, the action of rotating of this valve rocker is mainly used for adjusting the automobile engine valve gap. When the engine crankshaft rotates, the cam rotates, and the cam has many eccentric convex parts corresponding to one end of each valve rocker, and the other end of the valve rocker corresponds to the engine valve top rod. When the cam rotates, the convex part of the cam presses down one end of the valve rocker, and the valve rocker rotates along the main shaft, so that the other end of the valve rocker presses down the valve top rod, and then the engine cylinder inlet passage or exhaust passage is opened.

[0003] In the prior art, the valve rocker can only control one valve, and when multiple valves need to be controlled, a valve bridge is needed to drive, which will lead to complex structure, affect the compactness of the valve distribution mechanism, and increase the cost.

[0004] Therefore, a rocker, valve gas distribution structure and vehicle are needed to solve the above problems. SUMMARY

[0005] The utility model aims at providing a kind of rocker, valve gas distribution structure and vehicle, at least two valves can be controlled simultaneously on the basis of not installing valve bridge, and then the distribution efficiency is improved, the space utilization is improved, and cost is reduced.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Rocker, the rocker includes:

[0008] Rocker body, the rocker body is provided with shaft hole, the shaft hole is used to connect main shaft, and the rocker body is symmetrical about first plane;

[0009] At least two fork arms, at least two fork arms are connected to the rocker body, and at least two fork arms are symmetrically arranged about the first plane, and at least two fork arms are used to one-to-one correspondingly connect at least two valves;

[0010] Roller, the roller is rotationally arranged in the rocker body, and the roller is located at one end of the rocker body away from two fork arms, and the roller is a symmetrical structure about the first plane.

[0011] As an optional technical solution, the fork arm is provided with two, and two fork arms are arranged at an angle.

[0012] As an optional technical solution, the rocker arm further comprises shaft sleeves, the two shaft sleeves are arranged at intervals in the shaft hole, and an oil groove is formed between the inner wall of the rocker arm body and the shaft sleeves.

[0013] As an optional technical solution, the shaft sleeve is provided with a lubricating groove and an oil inlet hole, the rocker arm body is provided with an oil channel, and the lubricating groove is communicated with the oil channel of the rocker arm body through the oil inlet hole.

[0014] As an optional technical solution, the lubricating groove extends along the circumference of the shaft sleeve, and the central angle corresponding to the lubricating groove is at least 180 degrees.

[0015] As an optional technical solution, the rocker arm body is further provided with a drain hole, and the drain hole is communicated with the oil groove.

[0016] As an optional technical solution, the drain hole is arranged at the groove bottom of the oil groove.

[0017] As an optional technical solution, the rocker arm further comprises an adjusting screw, the fork arm is provided with a connecting hole, the adjusting screw is adjustably connected to the connecting hole, and the adjusting screw is used for connecting the valve.

[0018] The utility model still adopts following technical scheme:

[0019] The valve gas distribution structure comprises a main shaft, a camshaft and at least two valves, the valve gas distribution structure further comprises the rocker arm, the main shaft is arranged in the shaft hole, the camshaft is parallel to the main shaft and is arranged at intervals, the roller is always rolled against the cam on the camshaft, and the at least two valves are connected with the at least two fork arms one by one.

[0020] The utility model still adopts following technical scheme:

[0021] The vehicle comprises the valve gas distribution structure.

[0022] The utility model has the advantages of the following:

[0023] The utility model discloses a rocker, this rocker includes rocker body, at least two prongs and gyro wheel, be provided with the shaft hole for connecting the main shaft on the rocker, and the rocker body is about the first plane symmetry, at least two prongs all are connected in the rocker body, for correspondingly connecting in at least two valves, and at least two prongs are about the first plane symmetry, the gyro wheel is arranged in the one end of the rocker body away from two prongs, and the gyro wheel is about the first plane and is the symmetry structure, and this kind of rocker can directly control at least two valves simultaneously, improves the gas distribution efficiency, and cancels the valve bridge structure, and then reduces the spare parts quantity, reduces the cost, improves the space utilization, improves the compactness of gas distribution mechanism, and the gyro wheel is about the first plane symmetry, effectively avoids appearing the eccentric wear, improves the service life.

[0024] The utility model discloses still a valve gas distribution structure, this valve gas distribution structure includes main shaft, camshaft and at least two valves, still include above -mentioned rocker, main shaft is arranged in the shaft hole, camshaft is parallel with main shaft and interval arrangement, gyro wheel always rolls and abuts with the cam on camshaft, at least two valves and at least two prongs correspondingly connect. This valve gas distribution structure is provided with this rocker, can control the opening and closing of at least two valves simultaneously on the basis of not installing valve bridge, improves the gas distribution efficiency, and realizes the compact design of gas distribution structure, reduces the spare parts quantity, reduces the cost, improves the space utilization.

[0025] The utility model discloses still a vehicle, this vehicle includes above -mentioned valve gas distribution structure, is provided with above -mentioned valve gas distribution structure, makes the gas distribution structure spare parts of this vehicle less, and the gas distribution efficiency is high, and effectively improves the space utilization, reduces the cost. ACCURACY OF DRAWINGS

[0026] Figure 1 It is the overhead view of the valve gas distribution structure of the utility model embodiment;

[0027] Figure 2 It is the section view of the rocker of the valve gas distribution structure of the utility model embodiment;

[0028] Figure 3 It is the installation schematic of the rocker and the shaft sleeve of the utility model embodiment Figure 1 ;

[0029] Figure 4 It is the installation schematic of the rocker and the shaft sleeve of the utility model embodiment Figure 2 ;

[0030] Figure 5 It is the structure schematic of the shaft sleeve of the utility model embodiment;

[0031] Figure 6 It is the section view of the adjusting screw of the rocker of the utility model embodiment.

[0032] Fig.

[0033] 1, rocker arm; 2, first plane; 3, main shaft; 4, camshaft; 401, cam; 5, valve;

[0034] 10, rocker arm body; 11, shaft hole; 12, oil drain hole;

[0035] 20, fork arm;

[0036] 30, roller;

[0037] 40, shaft sleeve; 41, oil groove; 42, lubricating groove; 43, oil inlet hole;

[0038] 50, adjusting screw. DETAILED DESCRIPTION

[0039] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0040] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0043] like Figures 1 to 6 As shown, this embodiment provides a rocker arm 1, which includes a rocker arm body 10, a roller 30, and at least two fork arms 20. The rocker arm body 10 is provided with a shaft hole 11 for connecting a main shaft 3. The rocker arm body 10 is symmetrical about a first plane 2. At least two fork arms 20 are connected to the rocker arm body 10 and are symmetrically arranged about the first plane 2. At least two fork arms 20 are used to connect at least two valves 5 in a one-to-one correspondence. The roller 30 is rotatably disposed on the rocker arm body 10 and is located at the end of the rocker arm body 10 away from the two fork arms 20. The roller 30 has a symmetrical structure about the first plane 2. Specifically, in this embodiment, the rocker arm body 10 has a symmetrical structure with the first plane 2 as its symmetrical plane. At least two forks 20 on the rocker arm body 10 are symmetrical about the first plane 2. During use, this ensures good balance of the rocker arm 1, and at least two forks 20 can be connected to at least two valves 5 one-to-one, which can improve valve distribution efficiency, avoid the use of valve bridges which would result in a large valve distribution structure, and reduce the number of parts, thereby reducing costs, improving space utilization, and increasing the compactness of the valve distribution structure. The rocker arm body 10 is also rotatably equipped with rollers 30, which are symmetrical about the first plane 2. In actual use, the rollers 30 and the cams 401 on the camshaft 4 roll and abut against each other, which can make the force on the rocker arm body 10 more balanced, avoid uneven wear between the main shaft 3 and the rocker arm body 10, and thus ensure the service life of the rocker arm 1.

[0044] Specifically, in actual use, in order to achieve a symmetrical structure of roller 30 about the first plane 2, it is necessary to prevent interference between cylinder head bolts and camshaft 4 and to leave design margin for cam 401. Therefore, the position of rocker arm 1 will be slightly raised.

[0045] Furthermore, such as Figure 1 As shown, two fork arms 20 are provided, and the two fork arms 20 are set at an angle. Specifically, in this embodiment, the two fork arms 20 are set at an angle, which allows for a certain distance between the connection points of the two fork arms 20 and the valves 5, thereby avoiding mutual interference between the two valves 5 during operation and improving safety during use.

[0046] Furthermore, such as Figure 3As shown, the rocker arm 1 further comprises two shaft sleeves 40, which are arranged at the shaft hole 11 in a spaced manner and form an oil groove 41 with the inner wall of the rocker arm body 10. Specifically, in the embodiment, the two shaft sleeves 40 are arranged in a spaced manner, so that the two side walls of the two shaft sleeves 40 and the inner wall of the rocker arm body 10 form the oil groove 41. In the embodiment, the shaft sleeve 40 is in interference fit with the shaft hole 11, and the shaft sleeve 40 is located between the inner wall of the shaft hole 11 and the main shaft 3. In actual use, the oil groove 41 contains lubricating oil, which can lubricate the shaft sleeve 40 and the main shaft 3, reduce the friction between the main shaft 3 and the shaft sleeve 40, and further reduce the wear of the main shaft 3 and the shaft sleeve 40, thereby prolonging the service life.

[0047] Further, as shown in Figure 4 and Figure 5 , the shaft sleeve 40 is provided with a lubricating groove 42 and an oil inlet hole 43, and the rocker arm body 10 is provided with an oil channel, and the lubricating groove 42 is communicated with the oil channel through the oil inlet hole 43. Specifically, in the embodiment, the oil inlet hole 43 communicates the lubricating groove 42 with the oil channel, and in actual use, the oil channel in the rocker arm body 10 enters the lubricating groove 42 through the oil inlet hole 43. The lubricating groove 42 is directly opposite to the outer circumferential surface of the main shaft 3. When the main shaft 3 rotates, the lubricating oil will cover the surface of the main shaft 3, thereby reducing the friction between the main shaft 3 and the shaft sleeve 40, and further reducing the wear of the main shaft 3 and the shaft sleeve 40, thereby prolonging the service life.

[0048] Specifically, in the embodiment, the oil inlet hole 43 is located at one end of the lubricating groove 42, and in the installation process, the installation directions of the two shaft sleeves 40 are opposite, so that the distance between the two shaft sleeves 40 and the two oil inlet holes 43 is the farthest. This design makes the shaft sleeve 40 a universal design part, improves the processing convenience, reduces the cost, and facilitates the management of parts. At the same time, the distance between the two oil inlet holes 43 is the farthest, which can improve the oil inlet efficiency and the efficiency of the lubricating oil covering the main shaft 3, thereby ensuring the lubricating efficiency.

[0049] Further, the lubricating groove 42 extends along the circumference of the shaft sleeve 40, and the corresponding central angle of the lubricating groove 42 is at least 180°. Specifically, in the embodiment, this design can make the lubricating groove 42 store enough amount of lubricating oil, ensure that the lubricating effect of the shaft sleeve 40 on the main shaft 3 is good, thereby reducing the wear of the main shaft 3 and the shaft sleeve 40, and further prolonging the service life.

[0050] Further, as shown in Figure 4 , the rocker arm body 10 is further provided with a drain hole 12, which is communicated with the oil groove 41. Specifically, in the embodiment, the drain hole 12 can discharge the lubricating oil in the oil groove 41, improve the smoothness in use, avoid the lubricating oil from being discharged from both sides of the shaft hole 11, and improve the use performance of the rocker arm 1.

[0051] Further, the oil drain hole 12 is arranged at the bottom of the oil groove 41. Specifically, in the embodiment, the shaft hole 11 extends along the horizontal direction, and the oil drain hole 12 is arranged at the bottom of the oil groove 41, so that the lubricating oil in the oil groove 41 can be discharged through the oil drain hole 12 under the action of gravity, thereby effectively preventing the lubricating oil from depositing, and further ensuring the lubricating effect.

[0052] Further, as shown in Figure 6 The rocker arm 1 further comprises an adjusting screw 50, the fork arm 20 is provided with a connecting hole, the adjusting screw 50 is adjustably connected to the connecting hole, and the adjusting screw 50 is used for connecting the valve 5. Specifically, in the embodiment, two adjusting screws 50 are arranged, and the two fork arms 20 are provided with connecting holes, the two adjusting screws 50 are adjustably connected to the two connecting holes, and are used for corresponding connection to the two valves 5 to open or close the two valves 5.

[0053] Specifically, in the embodiment, the adjusting screw 50 is connected to the valve 5 through a ball head structure.

[0054] The embodiment further provides a valve valve structure, which comprises a main shaft 3, a camshaft 4 and at least two valves 5, and further comprises the rocker arm 1 as above, the main shaft 3 is arranged in the shaft hole 11, the camshaft 4 is arranged in parallel and spaced apart from the main shaft 3, the roller 30 is always in rolling abutment with the cam 401 on the camshaft 4, and the at least two valves 5 are connected to the at least two fork arms 20 one by one. The valve valve structure can simultaneously control the opening and closing of the at least two valves 5 without installing a valve bridge by arranging the rocker arm 1, improves the valve efficiency, realizes the compact design of the valve structure, reduces the number of parts, reduces the cost, and improves the space utilization.

[0055] The embodiment further provides a vehicle comprising the valve valve structure as above, so that the valve structure of the vehicle has fewer parts, high valve efficiency, and effectively improves the space utilization and reduces the cost.

[0056] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A rocker arm, characterized in that, The rocker arm includes: The rocker arm body (10) is provided with a shaft hole (11) for connecting the main shaft (3). The rocker arm body (10) is symmetrical about the first plane (2). At least two forks (20), both of which are connected to the rocker arm body (10), and the at least two forks (20) are symmetrically arranged about the first plane (2), and the at least two forks (20) are used to connect at least two valves (5) in a one-to-one correspondence; A roller (30) is rotatably disposed on the rocker arm body (10), and the roller (30) is located at one end of the rocker arm body (10) away from the two forks (20). The roller (30) has a symmetrical structure about the first plane (2).

2. The rocker arm according to claim 1, characterized in that, There are two fork arms (20), and the two fork arms (20) are set at an angle.

3. The rocker arm according to claim 1, characterized in that, The rocker arm also includes bushings (40), and two bushings (40) are spaced apart in the shaft hole (11) to form an oil groove (41) with the inner wall of the rocker arm body (10).

4. The rocker arm according to claim 3, characterized in that, The bushing (40) is provided with a lubrication groove (42) and an oil inlet hole (43), and the rocker arm body (10) is provided with an oil passage. The lubrication groove (42) is connected to the oil passage of the rocker arm body (10) through the oil inlet hole (43).

5. The rocker arm according to claim 4, characterized in that, The lubrication groove (42) extends circumferentially along the bushing (40), and the central angle corresponding to the lubrication groove (42) is at least 180°.

6. The rocker arm according to claim 3, characterized in that, The rocker arm body (10) is also provided with an oil drain hole (12), which is connected to the oil tank (41).

7. The rocker arm according to claim 6, characterized in that, The oil drain hole (12) is located at the bottom of the oil tank (41).

8. The rocker arm according to any one of claims 1-7, characterized in that, The rocker arm also includes an adjusting screw (50), the fork arm (20) has a connecting hole, the adjusting screw (50) is adjustablely connected to the connecting hole, and the adjusting screw (50) is used to connect the valve (5).

9. A valve train structure, wherein the valve train structure comprises a main shaft (3), a camshaft (4), and at least two valves (5), characterized in that, The valve train structure further includes a rocker arm as described in any one of claims 1-8, the main shaft (3) passing through the shaft hole (11), the camshaft (4) being parallel to and spaced apart from the main shaft (3), the roller (30) always rolling against the cam (401) on the camshaft (4), and at least two valves (5) being connected to at least two forks (20) in a one-to-one correspondence.

10. A vehicle, characterized in that, The vehicle includes the valve train structure as described in claim 9.

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