CN214578600U

CN214578600U - Flexible flywheel of automobile engine

Info

Publication number: CN214578600U
Application number: CN202120793625.3U
Authority: CN
Inventors: 孙洪明
Original assignee: Jilin Dahua Machine Manufacturing Co ltd
Current assignee: Jilin Dahua Machine Manufacturing Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-11-02
Anticipated expiration: 2031-04-19

Abstract

The utility model discloses a flexible flywheel of an automobile engine, which comprises a flywheel disc and a gear ring disc, wherein a circle of signal disc is arranged at the parallel position of the outer ring of the flywheel disc and the gear ring disc, a plurality of signal holes are arranged around the signal disc, and a hydraulic torque converter mounting hole, a crankshaft bolt hole and a positioning hole are arranged on the flywheel disc; the utility model discloses a flexible flywheel sets up the strengthening rib and sets up the destressing hole on excessive disc through setting up excessive disc on the flywheel, the interior outer lane of excessive disc sets up the strengthening rib and sets up the destressing hole on excessive disc, avoids being used in the excessive concentration of stress on flexible flywheel.

Description

Flexible flywheel of automobile engine

Technical Field

The utility model relates to a flywheel gear technical field, concretely relates to automobile engine's flexible flywheel.

Background

The flywheel is an inertia wheel made of cast iron, and the function of the flywheel is to store part of energy generated when the engine does work stroke, so as to overcome the resistance of other auxiliary strokes, enable the crankshaft to rotate uniformly, improve the short-term overload capacity of the engine, and enable the vehicle to start easily. The existing automobile engine flexible flywheel has the following defects:

the traditional flexible flywheel is not provided with a signal hole, and a signal panel is additionally installed for obtaining a timing signal of an engine; the problem of stress concentration easily caused by the integrated flexible flywheel in the use process is solved, and due to the fact that the flexible regions of a plurality of flexible flywheels have certain deformation structures, the rigidity of the flywheels is insufficient, local deformation is easy to occur, and therefore the service life of the flywheels is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a flexible flywheel of automobile engine to solve above-mentioned defect among the prior art.

A flexible flywheel of an automobile engine comprises a flywheel disc and a gear ring disc connected to the outer ring of the flywheel disc, wherein a circle of signal disc is arranged at the parallel position of the outer ring of the flywheel disc and the gear ring disc, a plurality of signal holes are formed around the signal disc, and a hydraulic torque converter mounting hole, a crankshaft bolt hole and a positioning hole are formed in the flywheel disc;

the flywheel disc comprises an inner circumferential disc, an outer circumferential disc and a transition disc connected between the inner circumferential disc and the outer circumferential disc, the disc surface of the transition disc is lower than the disc surfaces of the inner circumferential disc and the outer circumferential disc, the connection parts of the transition disc inner ring and the inner circumferential disc outer ring as well as the transition disc outer ring and the outer circumferential disc inner ring are in inclined transition, a circle of reinforcing ribs are arranged at the connection parts, and a plurality of stress relief holes are arranged on the disc surface of the transition disc in an annular array.

Preferably, the stress relief hole is arc-shaped, and the arc-shaped circle center of the stress relief hole deviates from the circle center of the flywheel disc and faces the outer side of the flywheel disc.

Preferably, the outer ring of the outer circumferential disc and the inner ring of the ring gear disc are connected through a plurality of welding points in an annular array.

Preferably, the torque converter mounting holes are arranged in an annular array on the disc surface of the outer circumferential disc.

Preferably, the crankshaft bolt holes and the positioning holes are respectively arranged on the disc surface of the inner circumferential disc in an annular array.

The utility model has the advantages of as follows:

the signal panel and the flywheel panel are arranged integrally, so that the assembly cost of the flywheel is reduced; the flexible flywheel is provided with the sunken transition disc, the reinforcing ribs are arranged on the inner ring and the outer ring of the transition disc, and the stress-relief holes are uniformly distributed in the transition disc, the circumference of the transition disc has a flexible buffer characteristic, so that the relative impact force between the inner circumference and the outer circumference can be reduced, the torque of an engine can be stably transmitted to the hydraulic torque converter, the pulse vibration of a transmission system is reduced, the excessive stress concentration of the flexible flywheel in the use process is avoided, and the service life of the flexible flywheel is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic sectional view of the present invention.

In the figure:

1-flywheel disc; 11-inner circumferential disc; 12-an outer circumferential disc; 13-transition disk; 14-reinforcing ribs; 2-a ring gear disc; 3-signal panel; 4-a signal hole; 5-stress relief holes; 6-a hydraulic torque converter mounting hole; 7-crankshaft bolt holes; 8-positioning holes; 9-welding points.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in figure 1 and figure 2, the utility model provides a flexible flywheel of automobile engine, including flywheel dish 1, connect in the ring gear dish 2 of flywheel dish 1 outer lane.

The outer ring of the flywheel panel 1 and the gear ring panel 2 are arranged side by side to form a circle of signal panel 3, and a plurality of signal holes 4 are formed around the signal panel 3. These signal holes 4 integrate the engine signal into the flexible flywheel. The signal panel 3 and the 1 integral type setting of flywheel dish reduce the assembly cost of flywheel.

A hydraulic torque converter mounting hole 6, a crankshaft bolt hole 7 and a positioning hole 8 are formed in the flywheel disc 1;

the flywheel disc 1 comprises an inner circumferential disc 11, an outer circumferential disc 12 and a transition disc 13 connected between the inner circumferential disc 11 and the outer circumferential disc 12, wherein the disc surface of the transition disc 13 is lower than the disc surfaces of the inner circumferential disc 11 and the outer circumferential disc 12. The flywheel disc 1 has flexible buffer characteristics by adopting the construction mode, and can buffer the relative impact force between the inner circumference and the outer circumference, so that the engine torque can be stably transmitted to the hydraulic torque converter, and the pulse vibration of a transmission system is reduced.

And the connection parts of the inner ring of the transition disc 13 and the outer ring of the inner circumferential disc 11 and the outer ring of the transition disc 13 and the inner ring of the outer circumferential disc 12 are in inclined transition, and a circle of reinforcing ribs 14 are arranged at the connection parts. The two rings of ribs 14 increase the strength of the flexible flywheel disc.

The annular array on the disk surface of the transition disk 13 is provided with a plurality of stress relief holes 5. The destressing hole 5 is arc-shaped, and the arc-shaped circle center of the destressing hole 5 deviates from the circle center of the flywheel disc 1 and faces the outer side of the flywheel disc 1. The stress relief hole 5 here has two functions: on one hand, the flexible flywheel has a weight-reducing function, and the flexible flywheel is lightened as much as possible; on the other hand, the stress concentration problem generated in the use process of the flexible flywheel is effectively reduced, and the service life of the flywheel is prolonged.

The outer ring of the outer circumferential disc 12 and the inner ring of the ring gear disc 2 are connected by a plurality of welding spots 9 in an annular array. The welding mode adopts a gas shielded welding mode, and the thermal deformation of each part of the product in the welding process is reduced as much as possible.

The torque converter mounting holes 6 are arranged in an annular array on the disc surface of the outer circumferential disc 12. The torque converter mounting hole 6 connects the flexible flywheel to a torque converter in an automobile transmission.

The crankshaft bolt holes 7 and the positioning holes 8 are respectively arranged on the disc surface of the inner circumferential disc 11 in an annular array. A crankshaft bolt hole 7 connects the flexible flywheel to the crankshaft of the vehicle. The relative position of the automobile crankshaft and the flexible flywheel is fixed through the positioning hole 8. The relative angle of the signal hole 4 and the positioning hole 8 provides an important positional relationship for the engine so that the engine can be normally started and operated.

In the working process of the flexible flywheel, the engine torque is transmitted to the hydraulic torque converter through the rigidity of the disc body, so that the automobile is driven to run.

The utility model discloses a flexible flywheel is through setting up the excessive disc 13 that caves in on the flywheel, the interior outer lane of excessive disc 13 sets up strengthening rib 14 and equipartition destressing hole 5 on excessive disc 13, excessive disc 13 circumference has the flexible buffer characteristic, can slow down the relative impact force between interior circumference and the outer circumference, make the engine moment of torsion can transmit hydraulic torque converter steadily, reduce transmission system's pulse vibration, avoid flexible flywheel stress excessive concentration in the use, improve flexible flywheel's life.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A flexible flywheel for an automotive engine, characterized in that: the flywheel disc type hydraulic transmission device comprises a flywheel disc (1) and a gear ring disc (2) connected to the outer ring of the flywheel disc (1), wherein a circle of signal disc (3) is arranged on the outer ring of the flywheel disc (1) in parallel with the gear ring disc (2), a plurality of signal holes (4) are formed around the signal disc (3), and a hydraulic torque converter mounting hole (6), a crankshaft bolt hole (7) and a positioning hole (8) are formed in the flywheel disc (1);

the flywheel disc (1) comprises an inner circumferential disc (11), an outer circumferential disc (12) and a transition disc (13) connected between the inner circumferential disc (11) and the outer circumferential disc (12), the disc surface of the transition disc (13) is lower than the disc surfaces of the inner circumferential disc (11) and the outer circumferential disc (12), the inner ring of the transition disc (13) and the outer ring of the inner circumferential disc (11) and the connection parts of the outer ring of the transition disc (13) and the inner ring of the outer circumferential disc (12) are all in inclined transition, a circle of reinforcing ribs (14) are arranged at the connection parts, and a plurality of stress relief holes (5) are arranged in the disc surface of the transition disc (13) in an annular array mode.

2. A flexible flywheel for an automobile engine according to claim 1, characterized in that: the stress relief hole (5) is arc-shaped, and the arc-shaped circle center of the stress relief hole (5) deviates from the circle center of the flywheel disc (1) and faces the outer side of the flywheel disc (1).

3. A flexible flywheel for an automobile engine according to claim 1, characterized in that: the outer ring of the outer circumferential disc (12) is connected with the inner ring of the gear ring disc (2) through a plurality of welding points (9) in an annular array.

4. A flexible flywheel for an automobile engine according to claim 1, characterized in that: the hydraulic torque converter mounting holes (6) are arranged on the disc surface of the outer circumferential disc (12) in an annular array.

5. A flexible flywheel for an automobile engine according to claim 1, characterized in that: the crankshaft bolt holes (7) and the positioning holes (8) are respectively arranged on the disc surface of the inner circumferential disc (11) in an annular array mode.