CN216742631U - Damping flywheel - Google Patents

Abstract

The utility model provides a shock attenuation flywheel, including flywheel main part and elastic component, the flywheel main part includes casing and apron, elastic component locates in the accommodation space that casing and apron formed, the bottom of casing is equipped with a bulge at least, elastic component includes first spring and second spring, the length dimension of second spring under natural state is not more than the length dimension of first spring under natural state, and be not less than the length dimension of first spring after the during operation compression, when the spring compression, other end extrusion bulge, the spring is the concertina movement in accommodation space. Above-mentioned shock attenuation flywheel establishes the second spring through the cover in first spring for establish bilayer elastic component, replaced the traditional shock attenuation flywheel that only is equipped with the individual layer spring, strengthened elastic component's elasticity performance, thereby improved the shock-absorbing function of flywheel, solved the technical problem that the shock attenuation demand can't be satisfied to the shock attenuation flywheel that only is equipped with the individual layer spring among the prior art.

Description

Damping flywheel

Technical Field

The utility model relates to an automobile parts technical field, in particular to shock attenuation flywheel.

Background

The damper flywheel acts as a disc-shaped element with a high moment of inertia, acting as a capacity store, which is coupled to the engine and transmits power to the clutch.

In the prior art, a single-layer spring is only arranged in a common damping flywheel to form a single-mass flywheel structure, so that the structure is single, the function is limited, the torsion damping requirements of a new generation of engine power assembly and a transmission system cannot be met, and a series of negative influences such as resonance, abnormal sound, large noise, poor drivability, high oil consumption and the like in the driving process of a vehicle are caused.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a shock attenuation flywheel for solve the technical problem that the shock attenuation flywheel that only is equipped with the individual layer spring among the prior art can't satisfy the shock attenuation demand.

A damping flywheel comprises a flywheel body and an elastic assembly arranged in the flywheel body, wherein the flywheel body comprises a shell and a cover plate arranged on the shell in a covering mode, the shell and the cover plate form an accommodating space, the elastic assembly is arranged in the accommodating space, at least one protruding portion is arranged at the bottom of the shell, the elastic assembly at least comprises a first spring and a second spring sleeved in the first spring, the length of the second spring in a natural state is not larger than the length of the first spring in a natural state and is not smaller than the length of the first spring after the first spring is compressed in work, a lubricant is coated on the outer surface of the spring, the flywheel body further comprises a rotating piece arranged in the shell, the rotating piece is rotatably connected with the shell, and one end of the spring is connected with the rotating piece, when the spring is compressed, the other end presses the bulge, and the spring moves in the accommodating space in a telescopic mode.

Above-mentioned shock attenuation flywheel, establish the second spring through the cover in first spring endotheca, make to establish bilayer elastic component, the shock attenuation flywheel that has replaced the tradition and only was equipped with the individual layer spring, the elastic property of elastic component has been strengthened, thereby the shock-absorbing function of flywheel has been improved, make the shock attenuation flywheel satisfy the user demand, add simultaneously and establish emollient, all moving parts have effectually been lubricated, reduce wearing and tearing, the life of flywheel has been prolonged, the technical problem that the shock attenuation flywheel that only is equipped with the individual layer spring among the prior art can't satisfy the shock attenuation demand is solved.

Furthermore, the bottom of casing is equipped with two the bulge, two the bulge will accommodation space falls into two holding tanks independent relatively, two the holding tank symmetry sets up.

Furthermore, the elastic assembly comprises two first springs and two second springs, the second springs and the first springs are sleeved one by one, and the two first springs are respectively arranged in the two accommodating grooves.

Further, the rotating member includes a rotating body and two ears extending from the rotating body, and when the damping flywheel is in a non-working state, the ears are located above the protruding portion and overlapped with the protruding portion.

Further, the spring includes stiff end and expansion end, the stiff end is connected the ear is worked as when the shock attenuation flywheel is in operating condition, the expansion end extrusion the bulge.

Further, the lubricant is solid grease.

Further, the spring is arranged in the accommodating space in an arc shape.

Drawings

FIG. 1 is a structural diagram of a damping flywheel according to an embodiment of the present invention;

FIG. 2 is a schematic view of the assembly of the elastic component and the housing according to the embodiment of the present invention;

FIG. 3 is a schematic view of the rotary member and one of the first springs shown in FIG. 2 with the rotary member removed;

FIG. 4 is a schematic view of the accommodating groove arrangement;

FIG. 5 is a cross-sectional view of a damped flywheel.

Description of the main element symbols:

the following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, a flywheel according to an embodiment of the present invention is shown, which includes a flywheel main body and an elastic component 200 disposed in the flywheel main body, wherein the flywheel main body includes a casing 100 and a cover plate covering the casing 100, the casing 100 and the cover plate form an accommodating space, the elastic component 200 is disposed in the accommodating space, the bottom of the casing 100 is at least provided with a protrusion 110, the elastic component 200 at least includes a first spring 210 and a second spring 220 sleeved in the first spring 210, a length of the second spring 220 in a natural state is not greater than a length of the first spring 210 in the natural state and is not less than a length of the first spring 210 after being compressed in operation, an outer surface of the spring is coated with a lubricant, the flywheel main body further includes a rotating member 300 disposed in the casing 100, the rotary member 300 is rotatably connected to the housing 100, one end of the spring is connected to the rotary member 300, and when the spring is compressed, the other end presses the protrusion 110, and the spring moves in the accommodating space in a telescopic manner.

In the application, two-stage arc springs are circularly arranged in a shell 100, a small spring is sleeved inside a large spring, the rigidity of the spring is selected according to the parameter design of a power assembly and a transmission system, solid grease is uniformly coated on the two springs and is connected with the shell 100 through a force transmission plate and a lining 400, the assembly is sealed through laser welding and then is fixed on the rear end face of an engine crankshaft through an inner hexagon bolt 500.

The bottom of the housing 100 is provided with two protrusions 110, the two protrusions 110 divide the accommodating space into two relatively independent accommodating grooves 120, and the two accommodating grooves 120 are symmetrically arranged.

The elastic assembly 200 includes two first springs 210 and two second springs 220, the second springs 220 are sleeved with the first springs 210 one by one, and the two first springs 210 are respectively disposed in the two receiving grooves 120.

In the present application, the bottom of the housing 100 is symmetrically provided with two protrusions 110, so as to divide the accommodating space into two relatively independent accommodating grooves 120, which is further described to include but not limited to two accommodating grooves 120, and in other embodiments, the accommodating grooves 120 may be three groups, four groups or other numbers, which is selected according to the actual situation. When the number of receiving grooves 120 is changed, the number of springs included in the corresponding elastic member 200 is also changed accordingly.

The rotating member 300 includes a rotating body 310 and two ears 320 extending from the rotating body 310, and when the shock absorbing flywheel is in a non-operating state, the ears 320 are located above the protrusions 110 and overlap with the protrusions 110.

The spring includes stiff end and expansion end, the stiff end is connected ear 320, works as when shock attenuation flywheel is in operating condition, the expansion end extrusion bulge 110.

The lubricant is solid grease. The spring is arranged in the accommodating space in an arc shape.

As a specific example, a second spring 220 is sleeved in a first spring 210, so that a damping flywheel forms a double-mass flywheel assembly, the double-mass flywheel assembly is fixed on the rear end face of an engine crankshaft by six hexagon socket head bolts 500 and tightened according to a specified torque (110NM +/-10 NM), a gear ring is ensured to be meshed with a starter, the starter is electrified to start and then drives an engine and the flywheel to rotate together, the first spring 210 works when the output torque rotating speed of the engine is in a lower range (less than or equal to 1500rpm), the second spring 220 starts to work when the output torque rotating speed of the engine is in a middle range (1500 rpm-3500 rpm), two springs work simultaneously when the output torque rotating speed of the engine is in a high range (more than or equal to 3500rpm), the compression process of the spring eliminates the vibration of the engine and the resonance of a transmission system, the temperature of the flywheel rises after the high-speed rotation, the viscosity of solid grease in the flywheel is reduced, evenly dispersed in the housing 100, effectively lubricates all moving parts, reduces wear and prolongs the service life of the flywheel.

To sum up, the utility model discloses damping flywheel in the middle of the above-mentioned embodiment, establish the second spring through at first spring endotheca, make and establish bilayer elastic component, the traditional damping flywheel that only is equipped with the individual layer spring has been replaced, elastic component's elastic property has been strengthened, thereby the shock-absorbing function of flywheel has been improved, make damping flywheel satisfy the user demand, add simultaneously and establish emollient, effectual lubricated all moving parts, reduce wearing and tearing, the life of flywheel has been prolonged, the technical problem that damping flywheel that only is equipped with the individual layer spring among the prior art can't satisfy the damping demand is solved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (7)

1. A damping flywheel is characterized by comprising a flywheel main body and an elastic assembly arranged in the flywheel main body, wherein the flywheel main body comprises a shell and a cover plate arranged on the shell in a covering manner, the shell and the cover plate form an accommodating space, the elastic assembly is arranged in the accommodating space, at least one protruding part is arranged at the bottom of the shell, the elastic assembly at least comprises a first spring and a second spring sleeved in the first spring, the length of the second spring in a natural state is not more than the length of the first spring in a natural state and is not less than the length of the first spring after the first spring is compressed in work, a lubricant is coated on the outer surface of the spring, the flywheel main body further comprises a rotating piece arranged in the shell, the rotating piece is rotatably connected with the shell, and one end of the spring is connected with the rotating piece, when the spring is compressed, the other end presses the protruding part, and the spring moves in the accommodating space in a telescopic mode.

2. The flywheel of claim 1, wherein the bottom of the housing has two protrusions, the two protrusions dividing the receiving space into two receiving slots, the two receiving slots being symmetrically disposed.

3. The flywheel of claim 2, wherein the elastic member includes two first springs and two second springs, the second springs are sleeved with the first springs one by one, and the two first springs are disposed in the two receiving grooves.

4. The flywheel of claim 3, wherein the rotating member includes a rotating body and two ears extending from the rotating body, and the ears are located above and overlap the protrusions when the flywheel is in the non-operating state.

5. The flywheel of claim 4 wherein the spring includes a fixed end and a movable end, the fixed end is connected to the ear, and the movable end presses against the protrusion when the flywheel is in the operating state.

6. A damped flywheel according to claim 1 wherein said lubricant is a solid grease.

7. The flywheel of claim 1 wherein the spring is arcuate and is disposed within the receiving space.

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