Anti-slip groove universal gasoline engine flywheel assembly
By introducing structures such as snap-fit seats, connecting seats, and positioning bolts into the gasoline engine flywheel assembly, the problem of loose connection between the flywheel and crankshaft was solved, a stable connection was achieved, bolt loosening was prevented, and the reliability of the engine was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ANTAI MACHINERY
- Filing Date
- 2025-09-10
- Publication Date
- 2026-06-30
AI Technical Summary
In existing gasoline engine flywheel assemblies, the connecting bolts between the flywheel and the crankshaft are prone to loosening, affecting the normal operation of the engine and resulting in poor overall practicality.
It adopts a structure including a snap-fit seat, connecting seat, positioning seat and positioning bolt, and achieves a stable connection between the crankshaft and the flywheel body through sliding connection and spring design, preventing the positioning bolt from loosening and stripping.
This improves the connection stability of the flywheel assembly, prevents the positioning bolts from loosening under vibration, ensures normal engine operation, and enhances overall practicality.
Smart Images
Figure CN224433265U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of gasoline engine flywheel technology, and in particular relates to a universal gasoline engine flywheel assembly with anti-slip grooves. Background Technology
[0002] The anti-slip toothed universal gasoline engine flywheel assembly is a core component in a gasoline engine used for power transmission and starting. The flywheel is an inertial wheel made of cast iron. Its function is to store a portion of the energy generated during the engine's power stroke to overcome the resistance of other auxiliary strokes, make the crankshaft rotate evenly, and improve the engine's ability to overcome short-term overload, making it easier for the vehicle to start.
[0003] Currently, most gasoline engine flywheel assemblies on the market connect the flywheel and crankshaft using bolts. However, this connection method can cause the bolts connecting the flywheel and crankshaft to loosen after prolonged use. Over time, this can affect the normal operation of subsequent engine components and other structures, resulting in poor overall practicality. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a universal gasoline engine flywheel assembly with anti-slip grooves, which can effectively solve the problems of the existing technology.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a universal gasoline engine flywheel assembly with anti-slip tooth groove, including a crankshaft, a snap-fit seat fixed on the outer side of the bottom of the crankshaft, a guide rod fixed on the outer periphery of the bottom of the snap-fit seat, and a threaded groove opened at the bottom end of the crankshaft.
[0007] It also includes: a flywheel body distributed at the bottom of the crankshaft, and a connecting seat fixedly provided in the middle of the inner side of the flywheel body. An annular groove is opened at the bottom of the connecting seat, and a first through hole is connected to one side of the annular groove. A push rod is slidably connected to the inner side of the annular groove, and an auxiliary slide plate is sleeved on the outer side of one end of the push rod. A first spring is fixedly connected to the side wall of the auxiliary slide plate. A snap-fit groove is opened at the top of the connecting seat, and a guide groove is connected to the bottom of the snap-fit groove. A positioning seat is distributed below the connecting seat, and a positioning bolt is rotatably connected to the middle of one end of the positioning seat.
[0008] Furthermore, a second spring is fixedly connected to the inner side of the positioning seat, and a locking rod is connected to the other end of the second spring. A lever is fixedly provided on the surface of one end of the locking rod.
[0009] Furthermore, a connecting ring is fixedly provided around the positioning seat, and a second through hole is provided on the outer surface of the positioning seat.
[0010] Furthermore, a toothed ring is fixedly provided on the surface of the flywheel body, and a fan blade is fixedly provided on the bottom periphery of the flywheel body.
[0011] Furthermore, the push rod is slidably connected to the connecting seat via an auxiliary sliding plate, and the push rods are equidistantly distributed along the center point of the connecting seat.
[0012] Furthermore, the locking rod is slidably connected to the positioning seat via a second spring, and the locking rods are equidistantly distributed along the center point of the positioning seat.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model, through the design of a snap-fit seat, connecting seat, positioning post, and positioning bolt, can facilitate a stable connection between the crankshaft and the flywheel body. At the same time, it can effectively limit the positioning bolts, preventing them from slipping or loosening due to vibrations generated by the flywheel body during operation, thus affecting the normal operation of the entire flywheel assembly.
[0015] 2. This utility model, through the setting of a second spring, locking rod and toggle block and other structures, can facilitate the subsequent positioning of the positioning seat, thereby effectively ensuring the stability of the positioning bolt during the subsequent operation of the flywheel body, thus improving the connection effect between the flywheel body and the crankshaft, and making the overall practicality higher. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the present invention;
[0018] Figure 2 This is a bottom view of the present invention;
[0019] Figure 3 This is a side view of the positioning seat of this utility model;
[0020] Figure 4 This is a side view of the card holder of this utility model;
[0021] Figure 5 This is a schematic diagram of the cross-section of the positioning seat of this utility model;
[0022] Figure 6 This is a schematic cross-sectional view of the connector of this utility model.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Crankshaft; 2. Snap-fit seat; 3. Guide rod; 4. Threaded groove; 5. Flywheel body; 6. Connecting seat; 7. Annular groove; 8. First through hole; 9. Push rod; 10. Auxiliary slide plate; 11. First spring; 12. Snap-fit groove; 13. Guide groove; 14. Positioning seat; 15. Positioning bolt; 16. Second spring; 17. Locking rod; 18. Toggle block; 19. Connecting ring; 20. Second through hole; 21. Gear ring; 22. Fan blade. Detailed Implementation
[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0026] Please see Figure 1-6 As shown, this utility model is a universal gasoline engine flywheel assembly with anti-slip grooves, including a crankshaft 1, a snap-fit seat 2 fixed on the outer side of the bottom of the crankshaft 1, a guide rod 3 fixed on the outer periphery of the bottom of the snap-fit seat 2, the guide rods 3 being equidistantly distributed along the center point of the snap-fit seat 2, and the number of guide rods 3 being the same as the number of guide grooves 13, and the outer diameter of the guide rods 3 being compatible with the inner diameter of the guide grooves 13, and a threaded groove 4 opened at the bottom end of the crankshaft 1;
[0027] It also includes: a flywheel body 5 distributed at the bottom of the crankshaft 1, and a connecting seat 6 fixedly provided in the middle of the inner side of the flywheel body 5. An annular groove 7 is opened at the bottom of the connecting seat 6, and a first through hole 8 is connected to one side of the annular groove 7. The size of the annular groove 7 is adapted to the size of the connecting ring 19, and the first through hole 8 is equidistantly distributed along the center point of the annular groove 7. A push rod 9 is slidably connected to the size of the annular groove 7 and the inner side of the annular groove 7. An auxiliary slide plate 10 is sleeved on the outer side of one end of the push rod 9. The push rod 9, the first through hole 8, the locking rod 17 and the second through hole 20 are all located on the same horizontal line. A first spring 11 is fixedly connected to the side wall of the auxiliary slide plate 10. A snap-fit groove 12 is opened at the top of the connecting seat 6, and a guide groove 13 is connected to the bottom of the snap-fit groove 12. A positioning seat 14 is distributed below the connecting seat 6, and a positioning bolt 15 is rotatably connected to the middle of one end of the positioning seat 14. A sliding groove for the sliding of the toggle block 18 is opened on the upper surface of the positioning seat 14. The positioning bolt 15 and the positioning seat 14 form a rotatable connection.
[0028] During operation, the crankshaft 1 first drives the locking seat 2 to move longitudinally, causing the locking seat 2 to be inserted into the inner side of the flywheel body 5 and engage with the inner side of the locking groove 12 at the bottom of the connecting seat 6. When the two engage, multiple guide rods 3 are respectively inserted into the inner sides of multiple guide grooves 13, thereby providing a guiding effect for the connection between the crankshaft 1 and the flywheel body 5. Then, one end of the crankshaft 1 extends into the hole in the middle of the connecting seat 6, and the positioning seat 14 is engaged into the groove at the bottom of the connecting seat 6. The positioning bolt 15, located at the middle of one end of the positioning seat 14, passes through the hole in the middle of the bottom of the connecting seat 6 and extends into the inner side of the threaded groove 4 at the bottom of the crankshaft 1, so that the positioning bolt 15 and the threaded groove 4 form a rotational connection. Then, by turning the positioning bolt 15, the positioning seat 14 is positioned, achieving a stable connection between the crankshaft 1 and the flywheel body 5. At the same time, after the positioning bolt 15 is connected, The lateral force applied to the lever 18 is released, and then one end of the locking rod 17 is inserted into the hole opened in the inner wall of the connecting seat 6. Then the locking rod 17 pushes the push rod 9 laterally, realizing the lateral movement of the push rod 9. At this time, the lateral movement of the push rod 9 drives the auxiliary slide plate 10 to move laterally inside the connecting seat 6, improving the stability of the push rod 9 during the lateral movement. At the same time, the lateral movement of the push rod 9 will squeeze the first spring 11, realizing the deformation of the first spring 11. This facilitates the subsequent use of the reverse force generated by the deformation of the first spring 11 to assist the push rod 9 in lateral reset. Then, the lateral movement of the push rod 9 will penetrate the connecting ring 19 connected inside the annular groove 7 and extend to the inside of the first through hole 8, thereby further realizing the positioning treatment of the positioning seat 14, improving the stability of the connection between the positioning seat 14 and the connecting seat 6, and effectively preventing the risk of the positioning bolt 15 falling off after the flywheel body 5 has been working for a long time.
[0029] The inner side of the positioning seat 14 is fixedly connected to a second spring 16, and the other end of the second spring 16 is connected to a locking rod 17. A groove is provided on the inner side of one end of the locking rod 17, and the second spring 16 is fixedly connected to the inner side of the groove. The other end of the second spring 16 is fixedly connected to the inner wall of the positioning seat 14. A toggle block 18 is fixedly provided on the surface of one end of the locking rod 17.
[0030] During operation, the positioning seat 14 is engaged in the groove at the bottom of the connecting seat 6. When the positioning seat 14 and the connecting seat 6 are fully engaged, the lateral force applied to the lever 18 is released. At this time, the reverse force generated by the deformation of the second spring 16 when the lever 18 pulls the locking rod 17 laterally is released. Then, the reverse force generated by the deformation of the second spring 16 is used to push the locking rod 17 in the opposite direction, thereby inputting one end of the locking rod 17 into the inner wall of the connecting seat 6 and pushing the push rod 9 laterally, which facilitates the subsequent lateral movement of the push rod 9.
[0031] A connecting ring 19 is fixedly provided on the periphery of the positioning seat 14. A second through hole 20 is provided on the outer surface of the positioning seat 14. The second through holes 20 are equidistantly distributed along the center point of the connecting ring 19, and the inner diameter of the second through hole 20 is adapted to the outer diameter of the push rod 9.
[0032] During operation, since the connecting ring 19 is fixedly connected to the periphery of the positioning seat 14, when the positioning seat 14 is engaged with the bottom of the connecting seat 6, the connecting ring 19 will be fed into the inner side of the annular groove 7, which facilitates the initial engagement connection between the positioning seat 14 and the connecting seat 6. Then, one end of the push rod 9 will be fed into the inner side of the second through hole 20 under the lateral action of the locking rod 17, thereby further improving the stability of the connection between the positioning seat 14 and the connecting seat 6.
[0033] A toothed ring 21 is fixedly provided on the surface of the flywheel body 5, and a fan blade 22 is fixedly provided on the bottom periphery of the flywheel body 5.
[0034] During operation, the multiple fan blades 22 evenly distributed at the bottom of the flywheel body 5 can effectively guide the airflow, while the toothed ring 21 fixed on the surface of the flywheel body 5 facilitates the subsequent connection between gears in the internal structure of the gasoline engine.
[0035] The push rod 9 is slidably connected to the connecting seat 6 via the auxiliary slide plate 10, and the push rod 9 is equidistantly distributed along the center point of the connecting seat 6;
[0036] During operation, when one end of the locking rod 17 is inserted into the inner side of the connecting seat 6 and contacts the push rod 9, the push rod 9 moves laterally, causing the auxiliary slide plate 10 to slide laterally on the inner side of the connecting seat 6, which facilitates the subsequent insertion of one end of the push rod 9 into the inner side of the first through hole 8.
[0037] The locking rod 17 is slidably connected to the positioning seat 14 via the second spring 16, and the locking rod 17 is equidistantly distributed along the center point of the positioning seat 14.
[0038] During operation, since the locking rod 17 and the positioning seat 14 form a sliding connection, when the second spring 16 deforms and generates a reverse force, it will push the locking rod 17 laterally, thereby causing the locking rod 17 to slide laterally inside the positioning seat 14.
[0039] Working principle: First, the crankshaft 1 drives the snap-fit seat 2 to connect with the connecting seat 6. The guide rod 3 is inserted into the inner side of the guide groove 13, thus providing guidance for the connection between the crankshaft 1 and the flywheel body 5. Then, the positioning seat 14 is engaged in the slot at the bottom of the connecting seat 6, and the positioning bolt 15 extends into the inner side of the threaded groove 4. Tightening the positioning bolt 15 positions the positioning seat 14, achieving a stable connection between the crankshaft 1 and the flywheel body 5. After the positioning bolt 15 is connected, the lever 18 is released, and one end of the locking rod 17 is inserted into the hole in the inner wall of the connecting seat 6. The rear locking rod 17 pushes the push rod 9 laterally, causing the push rod 9 to move laterally through the connecting ring 19 connected to the inner side of the annular groove 7 and extend to the inner side of the first through hole 8. This further achieves the positioning treatment of the positioning seat 14, improves the stability of the connection between the positioning seat 14 and the connecting seat 6, and effectively prevents the positioning bolt 15 from falling off after the flywheel body 5 has been working for a long time. The multiple fan blades 22 distributed at equal intervals at the bottom of the flywheel body 5 can play an effective guiding role, while the toothed ring 21 fixed on the surface of the flywheel body 5 facilitates the subsequent connection between the gears of the internal structure of the gasoline engine.
[0040] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.
Claims
1. A universal gasoline engine flywheel assembly with anti-slip groove, comprising a crankshaft (1), a snap-fit seat (2) fixed on the outer side of the bottom of the crankshaft (1), a guide rod (3) fixed on the outer periphery of the bottom of the snap-fit seat (2), and a threaded groove (4) opened at the bottom end of the crankshaft (1). Its features are, Also includes: The bottom of the crankshaft (1) is provided with a flywheel body (5), and a connecting seat (6) is fixedly provided in the middle of the inner side of the flywheel body (5). The bottom of the connecting seat (6) is provided with an annular groove (7), and one side of the annular groove (7) is connected to a first through hole (8). A push rod (9) is slidably connected to the inner side of the annular groove (7), and an auxiliary slide plate (10) is sleeved on the outer side of one end of the push rod (9). A first spring (11) is fixedly connected to the side wall of the auxiliary slide plate (10). A snap-fit groove (12) is provided at the top of the connecting seat (6), and a guide groove (13) is connected to the bottom of the snap-fit groove (12). A positioning seat (14) is provided below the connecting seat (6), and a positioning bolt (15) is rotatably connected to the middle of one end of the positioning seat (14).
2. The anti-slip toothed universal gasoline engine flywheel assembly according to claim 1, characterized in that, The inner side of the positioning seat (14) is fixedly connected to a second spring (16), and the other end of the second spring (16) is connected to a locking rod (17). A lever (18) is fixedly provided on the surface of one end of the locking rod (17).
3. The anti-slip toothed universal gasoline engine flywheel assembly according to claim 1, characterized in that, A connecting ring (19) is fixed around the positioning seat (14), and a second through hole (20) is opened on the outer surface of the positioning seat (14).
4. The anti-slip toothed universal gasoline engine flywheel assembly according to claim 1, characterized in that, A toothed ring (21) is fixed on the surface of the flywheel body (5), and a fan blade (22) is fixed on the bottom periphery of the flywheel body (5).
5. The anti-slip toothed universal gasoline engine flywheel assembly according to claim 1, characterized in that, The push rod (9) is slidably connected to the connecting seat (6) via the auxiliary slide plate (10), and the push rod (9) is equidistantly distributed along the center point of the connecting seat (6).
6. The anti-slip toothed universal gasoline engine flywheel assembly according to claim 2, characterized in that, The locking rod (17) is slidably connected to the positioning seat (14) via the second spring (16), and the locking rod (17) is equidistantly distributed along the center point of the positioning seat (14).