CN213575281U

CN213575281U - Variable-pitch arc compression spring

Info

Publication number: CN213575281U
Application number: CN202022484698.2U
Authority: CN
Inventors: 马嘉杰; 刘太彬; 肖欢; 许前志; 高友刚; 丁长春; 汤雄; 高明明
Original assignee: Jiangsu Yisiling Shuangdi Spring Co ltd
Current assignee: Jiangsu Yisiling Shuangdi Spring Co ltd
Priority date: 2020-10-31
Filing date: 2020-10-31
Publication date: 2021-06-29
Anticipated expiration: 2030-10-31

Abstract

The utility model discloses a variable pitch arc compression spring, at least, include the arc spring section of the different pitches of two-stage process, the arc spring of this kind of different pitches is receiving alternating force effect time, the reaction force of spring satisfies different alternating action requirements comparatively ideally, can effectively avoid current monomer arc spring to produce because of high strength and high-frequency vibration or extrusion emergence fracture when receiving alternating force effect, through making the arc spring in the different characteristics of the external force size that receives of different positions, elasticity change through changing the arc spring realizes better shock attenuation, thereby reach the shock attenuation effect that improves the arc spring, prolong the life of arc spring.

Description

Variable-pitch arc compression spring

The technical field is as follows:

the utility model relates to a spring especially relates to a dual mass flywheel is with variable pitch arc compression spring.

Background art:

the dual-mass flywheel is an important part in the automobile power transmission system, can isolate the torsional vibration of the engine crankshaft more effectively, help to improve the performance of the car, the dual-mass flywheel divides a flywheel originally into two parts, a part is kept on the position of one side of original engine, play the role of the original flywheel, is used for starting and transmitting the rotational torque of the engine, another part is placed on one side of the drive train speed changer, is used for improving the rotational inertia of the speed changer, there is an annular oil pocket between two part flywheels, there are spring shock absorbers in the cavity, connect two part flywheels into a whole by the spring shock absorber, the spring used in the spring shock absorber at present is a monomer arc spring, its structure is disclosed in patent ZL 201020240812.0. Although the single arc spring has a certain damping effect, there is still a need for improvement.

In the actual driving process of an automobile, the rotating speed of a flywheel is alternating, the speed of speed change is not uniform, a single arc-shaped spring used in the existing spring shock absorber in the working process is also alternating, the alternating acting force generated by the flywheel in the working process is large, the acting force is small at low speed, the acting force is increased rapidly at high speed, the existing arc-shaped shock absorption spring cannot meet the alternating shock absorption requirements of acceleration and deceleration of the flywheel, the spring shock absorber is easy to damage in the working process, the manufacturing cost of the arc-shaped spring is high, the use cost of the device is improved frequently by replacement, the practicability of the device is reduced, and the variable-pitch arc-shaped compression spring is provided.

The utility model has the following contents:

in order to overcome the defects of the prior art, the utility model provides a variable pitch arc compression spring.

The utility model adopts the following technical scheme:

a variable pitch arc compression spring characterized in that: the spring comprises a first pitch spring section and a second pitch spring section, wherein the first pitch spring section and the second pitch spring section both belong to cylindrical compression springs, and the pitch length ratio of the first pitch spring section to the second pitch spring section is 1: 0.2 to 1.

Furthermore, the number of the first pitch spring sections and the second pitch spring sections is more than two, and the first pitch spring sections and the second pitch spring sections are arranged at intervals.

Further, a third pitch spring segment is included, the third pitch spring segment being disposed between the first pitch spring segment and the second pitch spring segment.

Furthermore, still include third pitch spring section, third pitch spring section and second pitch spring section link up the setting.

Further, the arc lengths of the first pitch spring section and the second pitch spring section are the same.

Further, the arc lengths of the first, second and third pitch spring segments are all the same.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

by the arc spring who changes present single pitch's arc spring into the multisection, when moving under the flywheel low-speed state, the arc spring mainly relies on the less spring section of elasticity to the external force extrusion that receives shock attenuation, when moving under the flywheel acceleration rate state, the arc spring then bears external alternating force from the less spring section of elasticity to the spring section that elasticity is the biggest in proper order, realize that the complex bears the shock attenuation, make the arc spring can bear the shock attenuation that the alternating effort and produce, avoid the problem of original arc spring easy damage in the course of the work, make the arc spring more adapt to the alternating force effect, thereby reach the purpose that improves the intensity and the life-span of arc spring, and practicality thereof.

Drawings

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

FIG. 2 is another schematic structural diagram of the present invention;

wherein: 1-a first pitch spring section; 2-a second pitch spring section; 3-third pitch spring segment.

The specific implementation mode is as follows:

embodiments of the present invention are illustrated below with reference to figures 1-2:

in order to make the technical means, innovative features, objectives and functions of the present invention apparent and understood, the present invention will be further described with reference to the following embodiments, which are only preferred embodiments of the present invention, but not all of them. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example 1:

the utility model provides a variable pitch arc compression spring comprises first pitch spring section 1 and second pitch spring section 2 that the external diameter is the same, and first pitch spring section 1 and second pitch spring section 2 all belong to the cylinder compression spring, and the pitch length ratio of first pitch spring section 1 and second pitch spring section 2 is 1: 0.5, the arc lengths of the first pitch spring segment 1 and the second pitch spring segment 2 are the same.

Example 2:

in embodiment 1, the first-pitch spring segment 1 has two segments, and the second-pitch spring segment 2 is disposed between two first-pitch spring segments 1.

Example 3: the utility model provides a variable pitch arc spring, includes first pitch spring section 1, second pitch spring section 2 and third pitch spring section 3, first pitch spring section 1, second pitch spring section 2 and third pitch spring section 3 all are the cylinder compression spring of same diameter, third pitch spring section 3 sets up between first pitch spring section 1 and second pitch spring section 2, the pitch ratio of first pitch spring section 1, second pitch spring section 2 and third pitch spring section 3 is 1: 0.8: 1.8.

example 4: the difference from embodiment 3 is that the third pitch spring segments 3 are arranged next to the second pitch spring segments 2.

In the above examples, the arc lengths of the first pitch spring segment 1, the second pitch spring segment 2 and the third pitch spring segment 3 may be the same or different.

The foregoing examples describe the basic principles, main features and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A variable pitch arc compression spring characterized in that: including first pitch spring section (1) and second pitch spring section (2), first pitch spring section (1) and second pitch spring section (2) all belong to the cylinder compression spring, and the pitch length ratio of first pitch spring section (1) and second pitch spring section (2) is 1: 0.2 to 1.

2. The variable pitch arcuate compression spring as defined in claim 1, wherein: the number of the first pitch spring sections (1) and the second pitch spring sections (2) is more than two, and the first pitch spring sections (1) and the second pitch spring sections (2) are arranged at intervals.

3. The variable pitch arcuate compression spring as defined in claim 1, wherein: still include third pitch spring section (3), third pitch spring section (3) set up between first pitch spring section (1) and second pitch spring section (2).

4. The variable pitch arcuate compression spring as defined in claim 1, wherein: still include third pitch spring section (3), third pitch spring section (3) and second pitch spring section (2) link up the setting.

5. The variable pitch arcuate compression spring as defined in claim 1, wherein: the arc lengths of the first pitch spring section (1) and the second pitch spring section (2) are the same.

6. The variable pitch arcuate compression spring as defined in claim 3 or 4, wherein: the arc lengths of the first pitch spring section (1), the second pitch spring section (2) and the third pitch spring section (3) are the same.