Air valve adjusting auxiliary device

Abstract

The invention relates to the technical field of valve adjustment, and particularly discloses a valve adjustment auxiliary device which is arranged on a flywheel panel of an engine and comprises a driving assembly and a dial plate assembly, the driving assembly is arranged on the flywheel panel and comprises an input shaft coaxial with the flywheel panel, and the input shaft rotates by a circle; the flywheel disc drives the engine to complete a working cycle; the dial plate assembly comprises a static dial plate, a movable dial plate and a driver, the driver is in coaxial running fit with the static dial plate, the movable dial plate is coaxially arranged on the driver, the driver and the input shaft are coaxially arranged and have two states of transmission connection and disconnection, the static dial plate is provided with a pointer in the radial direction, and the static dial plate and the engine are relatively fixed. A plurality of scribed lines are arranged on the movable dial plate around the axis at equal included angles, and the number of the scribed lines is equal to the number of cylinders of an engine. According to the valve adjusting auxiliary device, each piston cylinder can be accurately adjusted to a compression top dead center, and then the deviation existing in the valve clearance adjusting process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of valve adjustment, and in particular to a valve adjustment auxiliary device. Background Art

[0002] To ensure that the valves are tightly closed, an appropriate gap is usually left between the valve stem end and the valve drive parts when the engine is assembled in a cold state. This gap is called valve clearance. The valve clearance has a great impact on the engine. If the gap is too small, the valve will not close tightly when the engine is hot, resulting in power loss or even valve burnout; if the valve clearance is too large, it will cause knocking sounds between transmission parts and between valves and valve seats, and will aggravate wear and other faults. Therefore, the accuracy of the actual adjustment of the valve clearance value has a great impact on the engine.

[0003] Generally, a marking hole is provided on the flywheel of the engine. When the flywheel is rotated and the marking hole of the flywheel is located at the top dead center, the first piston cylinder of the engine is also at the compression top dead center. According to the ignition sequence of the engine, the flywheel is rotated at different angles to adjust the adjustable valves of each cylinder as required until the intake valves and exhaust valves of all cylinders are adjusted.

[0004] However, the biggest problem with the current adjustment method is that when the operator rotates the flywheel, the angle of rotation of the flywheel cannot be accurately controlled, resulting in a large deviation in the valve adjustment process. Summary of the invention

[0005] The purpose of the present invention is to provide a valve adjustment auxiliary device to solve the problem in the related art that when the operator rotates the flywheel, the rotation angle of the flywheel cannot be accurately controlled, resulting in a large deviation in the valve adjustment process.

[0006] The present invention provides a valve adjustment auxiliary device, which is used to be arranged on a flywheel disc of an engine, and the valve adjustment auxiliary device comprises:

[0007] A driving assembly, used to be arranged on the flywheel disc, the driving assembly comprising an input shaft coaxial with the flywheel disc, the input shaft rotates one circle so that the flywheel disc drives the engine to complete a working cycle;

[0008] The dial assembly comprises a static dial, a dynamic dial and a driver, wherein the driver is coaxially rotatably matched with the static dial, the dynamic dial is coaxially sleeved on the driver and fixedly connected to the driver, the driver is coaxially arranged with the input shaft and has two states of transmission connection and disconnection, the static dial is radially provided with a pointer, the static dial is used to be fixed relative to the engine so that the pointer is located at the 12 o'clock direction of the static dial, and the dynamic dial is provided with a plurality of engraved lines at equal angles around the axis of the dynamic dial, and the number of the engraved lines is equal to the number of cylinders of the engine.

[0009] As a preferred technical solution for the valve adjustment auxiliary device, the drive assembly includes a sun gear, a ring gear, a planetary carrier and a plurality of planetary gears. The ring gear is fixed relatively to the engine and is coaxially arranged with the flywheel disc. The input shaft is coaxially arranged with the sun gear. The plurality of planetary gears can drive the flywheel disc to rotate synchronously around the axis of the flywheel disc. The planetary carrier is rotationally coordinated with the input shaft, and the plurality of planetary gears are rotatably arranged on the planetary carrier.

[0010] As a preferred technical solution of the valve adjustment auxiliary device, the flywheel disc is provided with a plurality of bolts at intervals around the axis of the flywheel disc;

[0011] The drive assembly also includes multiple drive sleeves, and there is a one-to-one correspondence between the multiple planetary wheels, the multiple drive sleeves and the multiple bolts. The drive sleeves are arranged between the corresponding planetary wheels and the bolts and rotate with the corresponding planetary wheels. The end surface of the drive sleeve opposite to the bolt is concavely provided with a concave hole adapted to the screw head of the bolt, and the screw head of the bolt is inserted into the concave hole.

[0012] As a preferred technical solution of the valve adjustment auxiliary device, the flywheel disc is provided with a plurality of bolts at intervals around the axis of the flywheel disc;

[0013] The plurality of planetary wheels correspond to the plurality of bolts one by one, and circular holes are concavely arranged on the end surfaces of the planetary wheels opposite to the corresponding bolts, and the screw heads of the bolts are inserted into the circular holes.

[0014] As a preferred technical solution for the valve adjustment auxiliary device, the drive assembly also includes a positioning wheel, which is meshed with the sun gear and the ring gear at the same time, and a positioning pin is protruding from the positioning wheel along the axis of the positioning wheel, and the positioning pin is used to be inserted into the marking hole of the flywheel disc.

[0015] As a preferred technical solution of the valve adjustment auxiliary device, the static dial is fixedly connected to the ring gear.

[0016] As a preferred technical solution for the valve adjustment auxiliary device, the driver includes a drive shaft and a clutch. The drive shaft is rotatably arranged on the stationary disk and is coaxially arranged with the stationary disk. The clutch is used to make the drive shaft and the input shaft have two states of transmission connection and disconnection.

[0017] As a preferred technical solution of the valve adjustment auxiliary device, the static dial is provided with a first observation window, and the first observation window can observe the relative position of the pointer and the engraved line on the dynamic dial;

[0018] And / or, the static dial is provided with a second observation window, and the second observation window is capable of observing the relative position of the pointer and the marking hole of the flywheel disc.

[0019] As a preferred technical solution of the valve adjustment auxiliary device, the engine is a four-stroke engine, and the transmission ratio of the drive assembly is 1:2.

[0020] As a preferred technical solution of the valve adjustment auxiliary device, the engine is a two-stroke engine, and the transmission ratio of the drive assembly is 1:1.

[0021] The beneficial effects of the present invention are:

[0022] The present invention provides a valve adjustment auxiliary device, which is used to be arranged on a flywheel disc of an engine. The valve adjustment auxiliary device comprises a driving component and a dial component. The driving component is used to be arranged on the flywheel disc. The driving component comprises an input shaft coaxial with the flywheel disc. The input shaft rotates one circle so that the flywheel disc drives the engine to complete a working cycle. The dial component comprises a static dial, a dynamic dial and a driver. The driver is coaxially matched with the static dial for rotation. The dynamic dial is coaxially sleeved on the driver and fixedly connected to the driver. The driver is coaxially arranged with the input shaft and has two states of transmission connection and disconnection. The static dial is radially provided with a pointer. The static dial is used to be fixed relatively to the engine so that the pointer is located at the 12 o'clock direction of the static dial. The dynamic dial is provided with a plurality of engraved lines at equal angles around the axis of the dynamic dial, and the number of engraved lines is equal to the number of cylinders of the engine. After the valve adjustment auxiliary device is installed on the flywheel disc, the driver is first adjusted to a state of transmission connection with the input shaft, and then the driver drives the drive assembly to work, so that the axis of the marked hole on the flywheel disc intersects with the pointer on the static dial. At this time, the first piston cylinder of the engine is at the compression top dead center, and then the driver is adjusted to a state of transmission disconnection with the input shaft, and the driver continues to rotate. At this time, the driver drives the moving dial to rotate, so that a scale line on the moving dial coincides with the pointer, and then the driver is adjusted to a state of transmission connection with the input shaft again. After the valve clearance of the intake valve and the valve clearance of the exhaust valve corresponding to the first piston cylinder are adjusted, the driver drives the flywheel disc and the moving dial to rotate at the same time. When the pointer coincides with another scale line on the moving dial, the other piston cylinder of the engine is at the compression top dead center, and then the valve clearance of the intake valve and the valve clearance of the exhaust valve corresponding to the piston cylinder are adjusted. The above actions are repeated until all the scale lines on the pointer and the moving dial coincide, and then all the valve clearances of the engine are adjusted. The valve adjustment auxiliary device can accurately adjust each piston cylinder to the compression top dead center, thereby reducing the deviation in the valve clearance adjustment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the valve adjustment auxiliary device in the first embodiment of the present invention;

[0024] Figure 2 This is an exploded schematic diagram of the valve adjustment auxiliary device in the first embodiment of the present invention;

[0025] Figure 3 for Figure 1 Side view of the center valve adjustment auxiliary device Figure 1 ;

[0026] Figure 4 for Figure 1 Side view of the center valve adjustment auxiliary device Figure 2 ;

[0027] Figure 5 It is a schematic diagram of the structure of the moving dial in the first embodiment of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the valve adjustment auxiliary device in the second embodiment of the present invention;

[0029] Figure 7 for Figure 6 Side view of the center valve adjustment assist device.

[0030] In the figure:

[0031] 100, flywheel disc; 101, bolt;

[0032] 11. Input shaft; 12. Sun gear; 13. Ring gear; 14. Planet carrier; 15. Planet gear; 151. Round hole; 16. Driving sleeve; 161. Concave hole; 17. Positioning wheel;

[0033] 2. dial assembly; 21. static dial; 211. pointer; 212. first observation window; 213. second observation window; 22. dynamic dial; 221. engraved lines; 23. driver; 231. drive shaft; 232. clutch. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of the present invention, 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 detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] like Figure 1 to Figure 5As shown, the present embodiment provides a valve adjustment auxiliary device, which is used to be arranged on a flywheel disc 100 of an engine. The valve adjustment auxiliary device includes a drive assembly and a dial assembly 2. The drive assembly is used to be arranged on the flywheel disc 100. The drive assembly includes an input shaft 11 coaxial with the flywheel disc 100. The input shaft 11 rotates one circle so that the flywheel disc 100 drives the engine to complete a working cycle; the dial assembly 2 includes a static dial 21, a dynamic dial 22 and a driver 23. The driver 23 is coaxial with the static dial 21. The axis is rotated together, the moving dial 22 is coaxially sleeved on the driver 23 and fixedly connected to the driver 23, the driver 23 is coaxially arranged with the input shaft 11 and has two states of transmission connection and disconnection, the static dial 21 is radially provided with a pointer 211, the static dial 21 is used to be fixed relative to the engine so that the pointer 211 is located at the 12 o'clock direction of the static dial 21, and the moving dial 22 is provided with a plurality of engraved lines 221 at equal angles around the axis of the moving dial 22, and the number of engraved lines 221 is equal to the number of cylinders of the engine. After the valve adjustment auxiliary device is installed on the flywheel 100, the driver 23 is first adjusted to a state of transmission connection with the input shaft 11, and then the driver 23 drives the driving assembly to work, so that the axis of the marking hole on the flywheel 100 intersects with the pointer 211 on the static dial 21. At this time, the first piston cylinder of the engine is at the compression top dead center, and then the driver 23 is adjusted to a state of transmission disconnection with the input shaft 11. The driver 23 continues to rotate. At this time, the driver 23 drives the dynamic dial 22 to rotate, so that a scale line 221 on the dynamic dial 22 coincides with the pointer 211, and then the driver 2 3 is adjusted to the state of transmission connection with the input shaft 11 again. After the valve clearance of the intake valve and the valve clearance of the exhaust valve corresponding to the first piston cylinder are adjusted, the driver 23 drives the flywheel 100 and the moving dial 22 to rotate simultaneously. When the pointer 211 coincides with another scale line 221 on the moving dial 22, the other piston cylinder of the engine is at the compression top dead center, and then the valve clearance of the intake valve and the valve clearance of the exhaust valve corresponding to the piston cylinder are adjusted. Repeat the above actions until the pointer 211 and all scale lines 221 on the moving dial 22 coincide, and then all valve clearances of the engine are adjusted. The valve adjustment auxiliary device can accurately adjust each piston cylinder to the compression top dead center, thereby reducing the deviation in the valve clearance adjustment process.

[0039] Optionally, a number corresponding to a piston cylinder may be marked next to each scale line 221 on the moving dial 22. For example, when the engine is an inline six-cylinder engine, there are six scale lines 221 on the moving dial 22, and the six scale lines 221 are numbered 1-5-3-6-2-4 in sequence. When the pointer 211 points to the scale line 221 1, the first piston cylinder is at the compression top dead center; when the pointer 211 points to the scale line 221 5, the fifth piston cylinder is at the compression top dead center; and so on.

[0040] Optionally, the driving assembly includes a sun gear 12, a ring gear 13, a planet carrier 14, and a plurality of planetary gears 15. The ring gear 13 is relatively fixed to the engine and is coaxially arranged with the flywheel disc 100. The input shaft 11 is coaxially arranged on the sun gear 12. The plurality of planetary gears 15 can drive the flywheel disc 100 to rotate synchronously around the axis of the flywheel disc 100. The planet carrier 14 is rotationally matched with the input shaft 11, and the plurality of planetary gears 15 are rotationally arranged on the planet carrier 14. In this embodiment, the input shaft 11 passes through the planet carrier 14 and is fixedly connected to the sun gear 12. The input shaft 11, the planet carrier 14, and the sun gear 12 are coaxially arranged. The planet carrier 14 is rotationally matched with the input shaft 11 through a bearing. Since the ring gear 13 is relatively fixed to the engine, the driver 23 drives the sun gear 12 to rotate, so that the sun gear 12 drives the plurality of planetary gears 15 to rotate while revolving around the input shaft 11, and then the plurality of planetary gears 15 can drive the flywheel disc 100 to rotate synchronously around the axis of the flywheel disc 100.

[0041] Optionally, the flywheel disc 100 is provided with a plurality of bolts 101 at intervals around the axis of the flywheel disc 100; the drive assembly further includes a plurality of drive sleeves 16, and the plurality of planetary gears 15, the plurality of drive sleeves 16 and the plurality of bolts 101 correspond to each other one by one. The drive sleeves 16 are provided between the corresponding planetary gears 15 and the bolts 101 and are rotationally matched with the corresponding planetary gears 15. The end surface of the drive sleeve 16 opposite to the bolt 101 is concavely provided with a concave hole 161 adapted to the screw head of the bolt 101, and the screw head of the bolt 101 is inserted into the concave hole 161. In this embodiment, the screw head of the bolt 101 is inserted into the concave hole 161, so that the drive sleeve 16 can drive the screw head to move in a radial direction perpendicular to the concave hole 161, so that the planetary gear 15 can drive the flywheel disc 100 to rotate through the drive sleeve 16. Since the bolt 101 is fixedly connected to the flywheel disc 100 and the concave hole 161 is adapted to the screw head, the drive sleeve 16 cannot rotate around its own axis. Therefore, the planetary gear 15 and the drive sleeve 16 need to be rotated together.

[0042] Optionally, a rotating shaft is protruded along the axis on one side of the limit of the planetary wheel 15 and the flywheel disc 100, and a mounting groove is recessed on the end surface of the drive sleeve 16 away from the flywheel disc 100. The bearing is fixed in the mounting groove, and the rotating shaft of the planetary wheel 15 is inserted into the inner ring of the bearing in the mounting groove, and the rotating shaft and the inner ring of the bearing are interference fit.

[0043] As a preferred technical solution for the valve adjustment auxiliary device, the drive assembly also includes a positioning wheel 17, which is meshed with the sun gear 12 and the ring gear 13 at the same time. The positioning wheel 17 is provided with a positioning pin protruding along the axis of the positioning wheel 17, and the positioning pin is used to be inserted into the marking hole of the flywheel disc 100.

[0044] Optionally, the static dial 21 is fixedly connected to the ring gear 13. In this embodiment, the static dial 21 is fixed to the ring gear 13 by welding, screwing or gluing. This arrangement allows the static dial 21 and the ring gear 13 to enclose a receiving cavity, and the driver 23, the sun gear 12, the planetary gear 15, etc. are all located in the receiving cavity. This arrangement can prevent the driver 23 and the gears and other structures from causing harm to the staff.

[0045] Optionally, the ring gear 13 is fixed to a housing of a flywheel 100 of the engine.

[0046] Optionally, the driver 23 includes a drive shaft 231 and a clutch 232. The drive shaft 231 is rotatably disposed on the static dial 21 and is coaxially disposed with the static dial 21. The clutch 232 is used to enable the drive shaft 231 and the input shaft 11 to have two states of transmission connection and disconnection. In this embodiment, when the clutch 232 enables the drive shaft 231 and the input shaft 11 to be transmission connected, the staff can drive the input shaft 11 to rotate by driving the drive shaft 231. When the clutch 232 disconnects the drive shaft 231 and the input shaft 11 from transmission connection, the staff drives the drive shaft 231 to rotate, and the drive shaft 231 drives the clutch 232 to rotate.

[0047] Optionally, the static dial 21 is provided with a first observation window 212, which can observe the relative position of the pointer 211 and the scale line 221 on the dynamic dial 22; and / or, the static dial 21 is provided with a second observation window 213, which can observe the relative position of the pointer 211 and the marking hole of the flywheel disc 100. In this embodiment, this setting can facilitate observation by the staff.

[0048] Optionally, the engine is a four-stroke engine, and the transmission ratio of the drive assembly is 1:2. In this embodiment, when the crankshaft of the four-stroke engine rotates two circles, the engine realizes one working cycle. Therefore, when the valve clearance of the engine is adjusted, the flywheel 100 needs to rotate 720°. At this time, the corresponding moving dial 22 rotates 360°, so the transmission ratio of the drive assembly is 1:2.

[0049] Optionally, the engine is a two-stroke engine, and the transmission ratio of the drive assembly is 1:1. In this embodiment, when the crankshaft of the two-stroke engine rotates one circle, the engine realizes one working cycle. Therefore, when the valve clearance of the engine is adjusted, the flywheel disc 100 needs to rotate 360°. At this time, the corresponding moving dial 22 rotates 360°, so the transmission ratio of the drive assembly is 1:1.

[0050] Embodiment 2

[0051] like Figure 6 and Figure 7As shown, this embodiment is basically the same as the first embodiment, and the only difference is how the planetary wheel 15 drives the flywheel disc 100 to rotate. Optionally, the flywheel disc 100 is provided with a plurality of bolts 101 at intervals around the axis of the flywheel disc 100; the plurality of planetary wheels 15 and the plurality of bolts 101 correspond to each other one by one, and the end surface of the planetary wheel 15 opposite to the corresponding bolt 101 is concavely provided with a circular hole 151, and the screw head of the bolt 101 is inserted into the circular hole 151. In this embodiment, after the screw head of the bolt 101 is inserted into the circular hole 151, the screw head can still rotate around the axis of the planetary wheel 15. Therefore, when the planetary wheel 15 revolves, the planetary wheel 15 can drive the screw head to rotate around the axis of the input shaft 11, thereby driving the flywheel disc 100 to rotate.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A valve adjustment auxiliary device, used to be arranged on a flywheel (100) of an engine, characterized in that: include: A drive assembly, used to be arranged on the flywheel disc (100), the drive assembly comprising an input shaft (11) coaxial with the flywheel disc (100), the input shaft (11) rotates one circle so that the flywheel disc (100) drives the engine to complete a working cycle; The dial assembly (2) comprises a static dial (21), a dynamic dial (22) and a driver (23), wherein the driver (23) is coaxially rotatably matched with the static dial (21), the dynamic dial (22) is coaxially sleeved on the driver (23) and fixedly connected to the driver (23), the driver (23) is coaxially arranged with the input shaft (11) and has two states of transmission connection and disconnection, the static dial (21) is radially provided with a pointer (211), the static dial (21) is used to be fixed relative to the engine so that the pointer (211) is located at the 12 o'clock direction of the static dial (21), and the dynamic dial (22) is provided with a plurality of engraved lines (221) at equal angles around the axis of the dynamic dial (22), and the number of the engraved lines (221) is equal to the number of cylinders of the engine.

2. The valve adjustment assisting device according to claim 1, characterized in that: The driving assembly comprises a sun gear (12), a ring gear (13), a planet carrier (14) and a plurality of planetary gears (15); the ring gear (13) is fixed relative to the engine and is coaxially arranged with the flywheel disc (100); the input shaft (11) is coaxially arranged with the sun gear (12); the plurality of planetary gears (15) can drive the flywheel disc (100) to rotate synchronously around the axis of the flywheel disc (100); the planet carrier (14) is rotationally matched with the input shaft (11); and the plurality of planetary gears (15) are all rotationally arranged on the planet carrier (14).

3. The valve adjustment assisting device according to claim 2, characterized in that: The flywheel disc (100) is provided with a plurality of bolts (101) at intervals around the axis of the flywheel disc (100); The driving assembly further comprises a plurality of driving sleeves (16), wherein the plurality of planetary wheels (15), the plurality of driving sleeves (16) and the plurality of bolts (101) correspond to each other in a one-to-one manner, wherein the driving sleeves (16) are arranged between the corresponding planetary wheels (15) and the bolts (101) and are rotatably matched with the corresponding planetary wheels (15), and the end surface of the driving sleeve (16) opposite to the bolt (101) is concavely provided with a concave hole (161) adapted to the screw head of the bolt (101), and the screw head of the bolt (101) is inserted into the concave hole (161).

4. The valve adjustment assisting device according to claim 2, characterized in that: The flywheel disc (100) is provided with a plurality of bolts (101) at intervals around the axis of the flywheel disc (100); The plurality of planetary wheels (15) and the plurality of bolts (101) correspond one to one, and a circular hole (151) is concavely provided on the end surface of the planetary wheel (15) opposite to the corresponding bolt (101), and the screw head of the bolt (101) is inserted into the circular hole (151).

5. The valve adjustment assisting device according to claim 2, characterized in that: The drive assembly further comprises a positioning wheel (17), the positioning wheel (17) meshing with the sun gear (12) and the ring gear (13) at the same time, the positioning wheel (17) being provided with a positioning pin protruding along the axis of the positioning wheel (17), the positioning pin being used to be inserted into the marking hole of the flywheel disc (100).

6. The valve adjustment assisting device according to claim 2, characterized in that: The static dial (21) is fixedly connected to the gear ring (13).

7. The valve adjustment auxiliary device according to any one of claims 1 to 6, characterized in that: The driver (23) comprises a drive shaft (231) and a clutch (232); the drive shaft (231) is rotatably disposed on the static dial (21) and is coaxially disposed with the static dial (21); and the clutch (232) is used to enable the drive shaft (231) and the input shaft (11) to have two states of transmission connection and disconnection.

8. The valve adjustment auxiliary device according to any one of claims 1 to 6, characterized in that: The static dial (21) is provided with a first observation window (212), and the first observation window (212) is capable of observing the relative position of the pointer (211) and the engraved line (221) on the dynamic dial (22); And / or, the static dial (21) is provided with a second observation window (213), and the second observation window (213) is capable of observing the relative position of the pointer (211) and the marking hole of the flywheel disc (100).

9. The valve adjustment auxiliary device according to any one of claims 1 to 6, characterized in that: The engine is a four-stroke engine, and the transmission ratio of the drive assembly is 1:

2.

10. The valve adjustment auxiliary device according to any one of claims 1 to 6, characterized in that: The engine is a two-stroke engine, and the transmission ratio of the drive assembly is 1:1.

Images