Engine flywheel cover with vibration reduction structure

Abstract

The utility model discloses an engine flywheel cover with a damping structure, which comprises a cover body, the surface of the cover body is provided with a through groove, the side edge of the cover body is provided with a fixed convex ring, the surface of the fixed convex ring is provided with mounting screw holes at equal angles, and fixing bolts are screwed into the mounting screw holes; through the designed vibration reduction assembly, the vibration reduction effect can be conveniently achieved when the flywheel vibrates in the flywheel, the vibration amplitude of the flywheel can be reduced, the flywheel is not prone to loose connection after being used for a long time, meanwhile, friction damage can be reduced, the protection effect on the flywheel can be conveniently improved, and the service life of the flywheel can be prolonged; the practicability is good; by means of the designed limiting assembly, the flywheel cover can be further limited after being fixedly installed through fixing bolts, the fixing bolts are not prone to loosening when an engine vibrates, the installation firmness of the flywheel cover can be improved conveniently, and the practical effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of metal castings, in particular to an engine flywheel cover with a vibration reduction structure. Background Art

[0002] An engine is a machine that can convert other forms of energy into mechanical energy. The engine is the power unit of a car. A flywheel is a wheel-shaped accumulator with a large rotational inertia installed on the rotating shaft of the engine. After the flywheel is installed and connected to the engine, a protective cover needs to be fixed on the outside to protect the flywheel. However, the existing engine flywheel cover has a problem during use, and there is no vibration reduction structure inside the flywheel cover, so that the flywheel will vibrate when the engine is running, which may cause the flywheel to loosen or wear. This has limitations during use and has room for improvement. Utility Model Content

[0003] The utility model aims to provide an engine flywheel cover with a vibration reduction structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine flywheel cover with a vibration reduction structure, comprising a cover body, a surface of the cover body is provided with a through groove, a side of the cover body is provided with a fixing convex ring, the surface of the fixing convex ring is provided with mounting screw holes at equal angles, fixing bolts are screwed into the inside of the mounting screw holes, and a vibration reduction assembly is arranged inside the cover body.

[0005] The vibration damping assembly includes a limiting ring arranged inside the cover body, a fixing stud is symmetrically fixed to the top of the inner surface of the cover body, a first limiting screw ring is sleeved on the outside of the fixing stud, a connecting spring is sleeved on the outside of one end of the fixing stud, one end of the connecting spring is fixedly connected to the surface of the first limiting screw ring, a connecting snap ring is symmetrically fixed to the top surface of the limiting ring, and the other end of the connecting spring is snap-connected to the connecting snap ring.

[0006] As a further preferred embodiment of the present technical solution, grooves are formed at equal angles on the bottom end surface of the limiting ring, and balls are installed inside the grooves.

[0007] As a further preferred embodiment of the present technical solution, the outer diameter of the limiting ring is smaller than the inner diameter of the cover body, and there is a distance between the top end surface of the limiting ring and one end surface of the fixing stud.

[0008] As a further preferred embodiment of the present technical solution, the inner diameter of the connecting clamp ring at the opening is smaller than the inner middle diameter thereof, and the connecting clamp ring is made of metal.

[0009] As a further preferred embodiment of the present technical solution, a limit stop assembly is provided on the outer surface of the cover body, and the limit stop assembly includes a limit stop plate arranged at an equiangular angle on the side of the cover body, a connecting groove for the limit stop plate to be engaged is opened at an equiangular angle on the bottom of the side surface of the cover body, and a mounting plate is installed at an equiangular angle at the surface edge of the fixing convex ring, one end of the limit stop plate is engaged with the mounting plate, the bottom end surface of the limit stop plate is tightly fitted with the top end surface of the fixing bolt, a connecting plate is installed at one end of the top surface of the limit stop plate, a mounting screw is fixed at an equiangular angle on the side surface of the cover body, a connecting hole is opened on the top side surface of the connecting plate for one end of the mounting screw to pass through, and a second limit stop screw ring is sleeved on the outside of one end of the mounting screw, and one side surface of the second limit stop screw ring is tightly fitted with one side surface of the connecting plate.

[0010] As a further preferred embodiment of the present technical solution, the cross section of the mounting plate is in an inverted "L" shape, and the connecting slot is opened in a through shape.

[0011] The utility model provides an engine flywheel cover with a vibration reduction structure, which has the following beneficial effects:

[0012] 1. The utility model is convenient for achieving the effect of shock absorption when the flywheel vibrates inside the flywheel through the designed vibration reduction component, which can reduce the vibration amplitude of the flywheel, making it difficult for the flywheel to be loosened after long-term use. At the same time, it can also reduce friction damage, which is convenient for improving the protection effect of the flywheel, and can extend the service life of the flywheel, and has good practicality.

[0013] 2. The utility model uses a designed limiting component to facilitate further limiting the flywheel cover after it is fixedly installed by fixing bolts, so that the fixing bolts are not easy to loosen when the engine vibrates, which is convenient for improving the firmness of the flywheel cover installation and has a good practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the installation structure of the vibration reduction component and the limit component in the utility model;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of the middle A area;

[0017] Figure 4 for Figure 2 A magnified schematic diagram of the middle B area;

[0018] In the figure: 1. cover body; 2. through groove; 3. fixing convex ring; 4. mounting screw hole; 5. fixing bolt; 6. fixing stud; 7. first limiting screw ring; 8. connecting spring; 9. limiting ring; 10. limiting plate; 11. mounting plate; 12. mounting screw; 13. connecting plate; 14. groove; 15. ball; 16. connecting clamp ring; 17. connecting socket; 18. second limiting screw ring; 19. connecting clamping groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, an engine flywheel cover with a vibration reduction structure includes a cover body 1, a through groove 2 is provided on the surface of the cover body 1, a fixing convex ring 3 is installed on the side of the cover body 1, and mounting screw holes 4 are provided on the surface of the fixing convex ring 3 at equal angles, and fixing bolts 5 are screwed into the inside of the mounting screw holes 4. A vibration reduction component is provided inside the cover body 1, and the vibration reduction component includes a limiting ring 9 provided inside the cover body 1, and fixing studs 6 are symmetrically fixed on the top of the inner surface of the cover body 1, the outer diameter of the limiting ring 9 is smaller than the inner diameter of the cover body 1, and there is a distance between the top surface of the limiting ring 9 and the surface of one end of the fixing stud 6, and the outer surface of the fixing stud 6 is sleeved with a first limiting screw ring 7, and the outer surface of one end of the fixing stud 6 A connecting spring 8 is sleeved, one end of which is fixedly connected to the surface of the first limiting screw ring 7, a connecting snap ring 16 is symmetrically fixed to the top surface of the limiting ring 9, the other end of the connecting spring 8 is snap-connected with the connecting snap ring 16, the inner diameter of the opening of the connecting snap ring 16 is smaller than the inner middle diameter, the connecting snap ring 16 is made of metal, and grooves 14 are provided at equal angles on the bottom end surface of the limiting ring 9, and balls 15 are installed inside the grooves 14, which is convenient for achieving the purpose of shock absorption when the flywheel vibrates with the engine, and can reduce the vibration amplitude of the flywheel, so that the flywheel is not easy to loosen, and also reduce the friction damage caused to the flywheel, which is convenient for extending the service life of the flywheel and has good practicality.

[0021] like Figure 2 and Figure 4As shown, a limit assembly is provided on the outer surface of the cover body 1, and the limit assembly includes a limit plate 10 which is arranged at an equal angle on the side of the cover body 1, and a connecting groove 19 for the limit plate 10 to engage is provided at an equal angle on the bottom of the side surface of the cover body 1, and a mounting plate 11 is installed at an equal angle on the surface edge of the fixed convex ring 3, and one end of the limit plate 10 is engaged with the mounting plate 11, and the cross section of the mounting plate 11 is an inverted "L" shape, and the connecting groove 19 is opened in a through shape, and the bottom end surface of the limit plate 10 is tightly fitted with the top end surface of the fixing bolt 5, and a connecting groove 19 is installed at one end of the top end surface of the limit plate 10 The connecting plate 13 and the side surface of the cover body 1 are fixed with mounting screws 12 at equal angles. A connecting hole 17 is provided on the top side surface of the connecting plate 13 for one end of the mounting screw 12 to pass through. A second limiting screw ring 18 is sleeved on the outside of one end of the mounting screw 12. One side surface of the second limiting screw ring 18 is tightly fitted with one side surface of the connecting plate 13, which is convenient for improving the firmness of the flywheel cover after installation, so that the fixing bolt 5 can achieve the purpose of secondary limiting after fixed installation, so that the fixing bolt 5 is not easy to loosen when the engine vibrates, and the practical effect is better.

[0022] The utility model provides an engine flywheel cover with a vibration reduction structure, and the specific working principle is as follows: when the vibration reduction component is installed in the early stage of the utility model, the first limiting screw ring 7 is first pushed to move toward the outer end of the fixed stud 6 on the inner side of the cover body 1, and then the first limiting screw ring 7 is rotated, so that the first limiting screw ring 7 drives the connecting spring 8 to rotate and sleeve the outer side of the fixed stud 6 until the first limiting screw ring 7 is rotated to a suitable position, and then the above steps are repeated to install another first limiting screw ring 7, until the two first limiting screw rings 7 are installed in a limited position, and then the first limiting screw ring 7 is pushed again. The limiting ring 9 moves toward the inside of the cover body 1, so that the opening of the connecting snap ring 16 on the top surface of the limiting ring 9 is aligned with one end of the connecting spring 8. At this time, one end of the connecting spring 8 can be limitedly engaged with the inside of the connecting snap ring 16, so that the limiting ring 9 can be connected to the connecting spring 8 through the connecting snap ring 16. At this time, the limiting ring 9 can be limited inside the cover body 1. When the workers install the cover body 1 on the outside of the flywheel at a later stage, the surface of the limiting ring 9 will be pressed and fitted with the surface of the flywheel. When the flywheel vibrates due to the vibration of the engine, the connecting spring 8 can be realized. The present invention has the effect of reducing the vibration of the flywheel, which can reduce the vibration amplitude of the flywheel and make it difficult for the flywheel to loosen. At the same time, when the flywheel rotates, it will roll and fit with the surface of the ball 15 inside the groove 14, thereby reducing the friction generated when the flywheel rotates, reducing friction damage, and extending the service life of the flywheel. It has good practicality. After the cover body 1 is fixedly installed on the outside of the flywheel by the fixing bolts 5, the fixing bolts 5 need to be further limited in order to improve the firmness of the flywheel cover installation. First, pull one end of the connecting plate 13 so that the connecting plate 13 can be connected. The plate 13 drives the limit plate 10 to move to the outside of the connecting slot 19 until one end of the limit plate 10 is limited and engaged with the mounting plate 11. At this time, the bottom end surface of the limit plate 10 is tightly fitted with the top end surface of the fixing bolt 5. Then the second limit screw ring 18 on the outside of one end of the mounting screw 12 is rotated to make one side surface of the second limit screw ring 18 tightly fit with one side surface of the connecting plate 13, so that the limit plate 10 can further limit and fix the fixing bolt 5. When the engine vibrates, the fixing bolt 5 is not easy to loosen, and the practical effect is better.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine flywheel cover with a vibration reduction structure, comprising a cover body (1), a through groove (2) being provided on the surface of the cover body (1), a fixing convex ring (3) being installed on the side of the cover body (1), mounting screw holes (4) being provided on the surface of the fixing convex ring (3) at equal angles, a fixing bolt (5) being screwed into the inside of the mounting screw hole (4), characterized in that: A vibration reduction component is arranged inside the cover body (1); The vibration reduction assembly comprises a limiting ring (9) arranged inside the cover body (1); a fixing stud (6) is symmetrically fixed to the top of the inner surface of the cover body (1); a first limiting screw ring (7) is sleeved on the outside of the fixing stud (6); a connecting spring (8) is sleeved on the outside of one end of the fixing stud (6); one end of the connecting spring (8) is fixedly connected to the surface of the first limiting screw ring (7); a connecting snap ring (16) is symmetrically fixed to the top surface of the limiting ring (9); and the other end of the connecting spring (8) is snap-connected to the connecting snap ring (16).

2. The engine flywheel cover with a vibration reduction structure according to claim 1, characterized in that: The bottom end surface of the limiting ring (9) is provided with grooves (14) at equal angles, and a ball (15) is installed inside the groove (14).

3. The engine flywheel cover with a vibration reduction structure according to claim 1, characterized in that: The outer diameter of the limiting ring (9) is smaller than the inner diameter of the cover body (1), and there is a distance between the top end surface of the limiting ring (9) and one end surface of the fixing stud (6).

4. The engine flywheel cover with a vibration reduction structure according to claim 1, characterized in that: The inner diameter of the opening of the connecting clamp ring (16) is smaller than the diameter of the inner middle portion thereof, and the connecting clamp ring (16) is made of a metal material.

5. The engine flywheel cover with a vibration reduction structure according to claim 1, characterized in that: The outer surface of the cover body (1) is provided with a limit assembly, the limit assembly comprising a limit plate (10) arranged at an equal angle on the side of the cover body (1), a connection slot (19) for the limit plate (10) to engage is opened at an equal angle on the bottom of the side surface of the cover body (1), a mounting plate (11) is installed at an equal angle on the surface edge of the fixing convex ring (3), one end of the limit plate (10) is engaged with the mounting plate (11), and the bottom end surface of the limit plate (10) is connected to the fixing bolt (5). ), a connecting plate (13) is installed at one end of the top surface of the limiting plate (10), a mounting screw (12) is fixed at an equal angle to the side surface of the cover body (1), a connecting hole (17) is provided on the top side surface of the connecting plate (13) for one end of the mounting screw (12) to pass through, a second limiting screw ring (18) is sleeved on the outside of one end of the mounting screw (12), and a side surface of the second limiting screw ring (18) is tightly fitted with a side surface of the connecting plate (13).

6. The engine flywheel cover with a vibration reduction structure according to claim 5, characterized in that: The cross section of the mounting plate (11) is in an inverted "L" shape, and the connecting slot (19) is opened in a through shape.

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