CN211693369U - Rubber ring, crankshaft torsion damper assembly and vehicle - Google Patents

Abstract

The utility model discloses a rubber ring, rubber ring is non-circular loop type structure. The utility model also discloses a crankshaft torsion damper assembly and a vehicle, which comprises a hub, a rubber ring and an inertia ring which are arranged from inside to outside in sequence, wherein the hub and the inertia ring are connected together through vulcanization bonding or interference tension of the rubber ring; the rubber ring is of a non-circular ring structure; the hub is provided with an outer side surface matched and connected with the rubber ring, and the outer side surface is matched with the inner side surface of the rubber ring; the inertia ring is provided with an inner side surface which is matched and connected with the rubber ring, and the inner side surface is matched with the outer side surface of the rubber ring. The utility model provides a reliability problem of rubber ring, reduced the use length of rubber ring.

Description

Rubber ring, crankshaft torsion damper assembly and vehicle

Technical Field

The utility model belongs to the technical field of automobile engine bent axle system, concretely relates to rubber ring, bent axle twist reverse bumper shock absorber assembly and vehicle.

Background

The modern internal combustion engine is generally applied to automobiles by adopting a 4-stroke multi-cylinder design, and clearance multi-cylinder ignition does work, so that torsional vibration is inevitably generated in the rotation process of a crankshaft. This vibration is transmitted to each component of the engine, which affects the reliability and NVH performance, and also affects the comfort of the vehicle. In order to overcome the torsional vibration of the crankshaft, a crankshaft torsional vibration damper assembly is generally arranged at the front end of the crankshaft, so that the torsional vibration of the crankshaft can be effectively reduced.

As shown in fig. 1 and 2, the most common crankshaft torsional vibration damper assembly for modern engines generally consists of a hub 1 ', a rubber ring 2 ' and an inertia ring 3 '. The hub 1 ' and the inertia ring 3 ' are tightly combined into one part by vulcanization bonding or interference tension of the rubber ring 2 '. The hub 1' is assembled at the front end of the crankshaft and transmits the torque and torsional vibration of the crankshaft; the torsional vibration of the crankshaft is reduced due to the damping of the rubber ring 2 'and the inertial weight of the inertia ring 3'. The application design focuses on the moment of inertia of the inertia ring and the damping of the rubber.

The rubber ring 2 'and inertia ring 3' of the prior crankshaft torsional vibration damper assembly are designed as circular rings. The rubber ring 2' bears radial tangential force in the running process of the engine, and the tangential force pulls the rubber ring to easily cause the breakage of the rubber ring; meanwhile, in order to improve the borne engine torque, the diameter of the rubber ring needs to be increased to keep enough bonding surface, so that the space of the inertia ring 3' is further occupied, and the light-weight and compact design of the assembly is influenced.

Therefore, there is a need for a new rubber ring, crankshaft torsional damper assembly and vehicle.

Disclosure of Invention

The utility model aims at providing a rubber ring, bent axle twist reverse bumper shock absorber assembly and vehicle to solve the reliability problem of rubber ring, and reduce the use length of rubber ring.

A rubber ring, the rubber ring is non-circular ring type structure.

Further, the rubber ring is of a triangle-like ring structure.

Further, the rubber ring comprises three first circular arcs with the radius of R1 and three second circular arcs with the radius of R2, and the two adjacent first circular arcs are in transitional connection through one second circular arc.

Further, the radius R1 of the first circular arc is 50-300 mm; the radius R2 of the second circular arc is 10 mm-40 mm.

Further, the thickness L of the rubber ring is 3 mm-6 mm.

The utility model relates to a crankshaft torsion damper assembly, which comprises a hub, a rubber ring and an inertia ring which are arranged from inside to outside in sequence, wherein the hub and the inertia ring are connected together through vulcanization adhesion or interference tension of the rubber ring; the rubber ring adopts the rubber ring of the utility model;

the hub is provided with an outer side surface matched and connected with the rubber ring, and the outer side surface is matched with the inner side surface of the rubber ring;

the inertia ring is provided with an inner side surface which is matched and connected with the rubber ring, and the inner side surface is matched with the outer side surface of the rubber ring.

A vehicle, adopt like the utility model discloses a bent axle torsion damper assembly.

The utility model has the advantages of it is following: the novel electric heating furnace has the advantages of simple structure, reliable performance, compact size, lower cost, strong practicability and the like.

Drawings

FIG. 1 is a schematic structural view of a prior art crankshaft torsional vibration damper assembly;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural view of the crankshaft torsional vibration damper assembly according to the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic diagram of the principal dimensions of the middle crankshaft torsional vibration damper assembly of the present invention;

in fig. 1 and 2: 1 ' -hub, 2 ' -rubber ring, 3 ' -inertia ring;

in fig. 3 to 5: 1-hub, 2-rubber ring, 3-inertia ring.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

A rubber ring is of a non-circular ring structure.

As shown in fig. 3 and 4, in the present embodiment, the rubber ring 2 is a triangle-like ring structure.

The rubber ring 2 can also be of a quadrilateral-like annular structure, or a pentagonal-like annular structure, or a hexagonal-like annular structure.

The following description will be given by taking the rubber ring 2 as a triangle-like ring structure as an example:

as shown in fig. 5, the rubber ring 2 includes three first arcs with a radius of R1 and three second arcs with a radius of R2, and two adjacent first arcs are transitionally connected by one second arc. Wherein the radius R1 of the first arc is 50-300 mm; the radius R2 of the second circular arc is 10 mm-40 mm. The thickness L of the rubber ring is 3 mm-6 mm.

In the embodiment, the rubber ring 3 is designed into a triangle-like outline, and the circumferential tangential force to the rubber ring 2 in the running process of the engine is partially converted into the pressure to the rubber ring 2, so that the rubber ring 2 is more reliable, the service life is prolonged, and the torsional vibration of the crankshaft is obviously reduced. Meanwhile, the length of the triangle-like rubber ring 2 is shorter than that of a circular rubber ring, and the rubber material cost is reduced by about 25%. In addition, the rubber ring 2 is smaller in size, the inertia ring 3 is larger in design space, larger moment of inertia can be provided at the same outer diameter, or the diameter of the inertia ring 3 can be reduced at the same moment of inertia, so that light weight or compact design is realized.

As shown in fig. 3 and 4, a crankshaft torsion damper assembly includes a hub 1, a rubber ring 2, and an inertia ring 3, which are sequentially arranged from inside to outside, and the hub 1 and the inertia ring 3 are connected together by vulcanization adhesion or interference tension of the rubber ring 2; the rubber ring 2 is of a non-circular ring structure. The hub 1 is provided with an outer side surface matched and connected with the rubber ring 2, and the outer side surface is matched with the inner side surface of the rubber ring 2. Inertia ring 3 has the medial surface of being connected with the rubber ring cooperatees, and this medial surface and the lateral surface looks adaptation of rubber ring 2.

In this embodiment, a vehicle employs a crankshaft torsional damper assembly as described in this embodiment.

Claims (5)

1. A rubber ring, its characterized in that: the rubber ring (2) is of a triangle-like annular structure;

the rubber ring (2) comprises three sections of first arcs with the radius of R1 and three sections of second arcs with the radius of R2, and two adjacent sections of the first arcs are in transitional connection through one section of the second arcs.

2. The rubber ring of claim 1, wherein: the radius R1 of the first arc is 50-300 mm; the radius R2 of the second circular arc is 10 mm-40 mm.

3. The rubber ring according to claim 1 or 2, characterized in that: the thickness L of the rubber ring (2) is 3-6 mm.

4. A crankshaft torsion damper assembly comprises a hub (1), a rubber ring and an inertia ring (3) which are arranged from inside to outside in sequence, wherein the hub (1) and the inertia ring (3) are connected together through vulcanization adhesion or interference tension of the rubber ring; the method is characterized in that: the rubber ring adopts the rubber ring (2) as claimed in any one of claims 1 to 3;

the hub (1) is provided with an outer side surface which is matched and connected with the rubber ring (2), and the outer side surface is matched with the inner side surface of the rubber ring (2);

inertia ring (3) have with rubber ring (2) the medial surface of matching with being connected, this medial surface and the lateral surface looks adaptation of rubber ring (2).

5. A vehicle, characterized in that: the crankshaft torsional damper assembly of claim 4 is employed.

Images