阅读说明：本技术 一种减震联轴器及减震连接方法 (Damping coupling and damping connection method ) 是由 王文科 王宽镖 王伟鹏 王伟达 于 2020-06-18 设计创作，主要内容包括：本发明提供一种减震联轴器,包括主动盘和从动盘,所述主动盘上开设有第一弧形槽,所述从动盘开设有第二弧形槽,相互对应的所述第一弧形槽和所述第二弧形槽共同形成弧形腔,所述弧形腔内设置有弹簧组,所述弹簧组的两端都同时抵接在所述第一弧形槽和所述第二弧形槽的端部上,所述弹簧组包括两个以上依次布置的直线式的减震弹簧；本发明还提供了一种减震连接方法。通过让弧形腔内的减震弹簧有两个以上且依次布置,或者通过将弹簧组内的减震弹簧呈弧形排列,在吸收扭矩拨动后,同一弧形腔内的各个减震弹簧复位产生的弹力的作用方向是不同的,有效降低减震弹簧复位震动的概率,减震效果相对较好。(The invention provides a damping coupling, which comprises a driving disc and a driven disc, wherein a first arc-shaped groove is formed in the driving disc, a second arc-shaped groove is formed in the driven disc, the first arc-shaped groove and the second arc-shaped groove which correspond to each other form an arc-shaped cavity together, a spring group is arranged in the arc-shaped cavity, two ends of the spring group are abutted to the end parts of the first arc-shaped groove and the second arc-shaped groove simultaneously, and the spring group comprises more than two linear damping springs which are sequentially arranged; the invention also provides a shock absorption connecting method. Have more than two and arrange in proper order through the damping spring who lets the arc intracavity, perhaps be the arc through the damping spring with the spring unit in and arrange, stir the back at the absorption moment of torsion, the effect direction of each damping spring in same arc intracavity restores to the throne the elasticity that produces is different, effectively reduces the probability that damping spring resets and shakes, and the shock attenuation effect is better relatively.)

1. The utility model provides a damping coupling, its characterized in that, includes mutual coaxial arrangement's drive plate and driven plate, first arc wall has been seted up on the drive plate, the driven plate with the second arc wall has been seted up in the position department that first arc wall corresponds, corresponds each other first arc wall with the second arc wall forms the arc chamber jointly, the arc chamber is protruding to deviating from the drive plate or the axis direction of driven plate, the arc intracavity is provided with spring assembly, spring assembly's both ends are all the butt simultaneously first arc wall with on the tip of second arc wall, spring assembly includes the damping spring of the orthoscopic of arranging in proper order more than two, adjacent two be formed with the contained angle that is less than 180 between the damping spring.

2. The damping coupling of claim 1 wherein the resilience of each of said damping springs in the same arcuate chamber is different from one another.

3. The damping coupling according to claim 2, wherein the damping spring having the smallest elasticity is provided with a limiting structure for limiting a compression stroke of the damping spring.

4. The damping coupling according to claim 3, wherein the limiting structure is a limiting post inserted into the corresponding damping spring, and the length of the limiting post is less than the pre-compressed length of the damping spring having the smallest elasticity.

5. The damping coupling according to any one of claims 1 to 4, wherein two ends of each damping spring are respectively sleeved with a spring seat slidably connected in the arc-shaped cavity, and each spring seat is provided with a guide hole matched with the damping spring.

6. The damping coupling according to any one of claims 1 to 4, wherein there are more than two arcuate chambers, each of said arcuate chambers being evenly distributed about the axis of said driving disc or said driven disc.

7. A damped coupling according to any one of claims 1 to 4, wherein said driving discs comprise a first disc and a second disc fixedly connected to each other, said driven discs being located between said first disc and said second disc.

8. A damping coupling according to any one of claims 1 to 4 in which a splined sleeve is fixedly attached to said driven disc, coaxially arranged with said driven disc.

9. The damping coupling according to claim 7, characterized in that a counterbore is provided at a side of the first disc body and/or the second disc body facing the driven disc, a damping disc abuts against a bottom of the counterbore, a belleville spring abuts against a side of the damping disc remote from the bottom of the counterbore, the belleville spring abuts against the driven disc, and a plurality of connecting portions are provided at a periphery of the damping disc to be inserted through the driven disc.

10. A shock absorption connection method is characterized in that a driving end is connected to a driving disc, a driven end is connected to a driven disc, then a spring group is arranged between the driving disc and the driven disc, two ends of the spring group are simultaneously abutted against the driving disc and the driven disc, the spring group comprises more than two linear shock absorption springs which are sequentially arranged, and each shock absorption spring is arranged in an arc shape.

11. A shock absorbing coupling as claimed in claim 10 wherein said drive end is an output shaft of an engine flywheel or electric motor and said driven end is an input shaft of a transmission.

Technical Field

The invention relates to a connecting piece and a connecting method, in particular to a damping coupling and a damping connecting method.

Background

During the use of the vehicle, various vibration-prone working conditions such as starting, braking, accelerating and decelerating and the like inevitably exist, so that the engine or the motor of the vehicle is generally required to be in transmission connection with the transmission by adopting a damping coupling so as to ensure the stable operation of the engine or the motor.

The chinese patent application with publication number CN102878218A discloses a torsional damping coupler for a hybrid power system transmission assembly, which comprises two parts, namely a torsional damper and a rigid connection disc, wherein the torsional damper is of a double-spring damping structure, a plurality of spring installation notches are distributed on the end surface of a spline hub according to the circumference, damping springs are installed in the spring installation notches, a large spring and a small spring are arranged in a staggered manner, the center of the spline hub is a spline hole and is used for being sleeved on a connection shaft of a component at the rear end of an engine, and the two end surfaces of the spline hub are respectively attached with the rigid connection disc: the terminal surface that carries at the terminal surface of two torsion damping disks and spline corresponds to open has torsion damping disk spring mount notch, installs and has some card respectively in torsion damping disk spring mount notch at the intraoral damping spring of spline hub spring mount groove, when engine output power has the moment of torsion fluctuation, shouts through big damping spring and little damping spring and shakes: thereby absorbing the torque fluctuation. However, since the damping spring in each mounting groove opening is a single linear spring, after the damping spring is shifted to absorb torque, the elastic force generated by the resetting of the damping spring may also generate large vibration, which affects the damping effect. Simultaneously, because its big small spring distributes in the mounting groove mouth of difference, it is inhomogeneous to lead to the atress of every mounting groove mouth position easily, and this also can influence the shock attenuation effect.

In view of the above, the applicant has made intensive studies to solve the above problems and has made the present invention.

Disclosure of Invention

The invention aims to provide a damping coupling with relatively good damping effect and a damping connection method.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a damping coupling, includes mutual coaxial drive plate and the driven plate of arranging, first arc wall has been seted up on the drive plate, the driven plate with the position department that first arc wall corresponds has seted up the second arc wall, corresponds each other first arc wall with the second arc wall forms the arc chamber jointly, the arc chamber is protruding to deviating from the drive plate or the axis direction of driven plate, the arc intracavity is provided with spring assembly, spring assembly's both ends are all the butt simultaneously first arc wall with on the tip of second arc wall, spring assembly includes the damping spring of the orthoscopic of arranging in proper order more than two, adjacent two be formed with the contained angle that is less than 180 between the damping spring.

As an improvement of the invention, the elasticity of the damping springs in the same arc-shaped cavity is different from each other.

As an improvement of the invention, the damping spring with the smallest elasticity is provided with a limiting structure for limiting the compression stroke of the damping spring.

As an improvement of the present invention, the limiting structure is a limiting post inserted into the corresponding damping spring, and the length of the limiting post is smaller than the pre-compression length of the damping spring with the minimum elasticity.

As an improvement of the invention, two ends of each damping spring are respectively sleeved with a spring seat which is connected in the arc-shaped cavity in a sliding manner, and each spring seat is provided with a guide hole matched with the damping spring.

As an improvement of the invention, more than two arc-shaped cavities are arranged, and the arc-shaped cavities are uniformly distributed by taking the axial line of the driving disk or the driven disk as the center.

As an improvement of the invention, the driving disc comprises a first disc body and a second disc body which are fixedly connected with each other, and the driven disc is positioned between the first disc body and the second disc body.

As an improvement of the invention, a spline sleeve which is coaxially arranged with the driven disc is fixedly connected to the driven disc.

As an improvement of the invention, a counter bore is formed in one side, facing the driven disc, of the first disc body and/or the second disc body, a damping disc is abutted to the bottom of the counter bore, a belleville spring is abutted to one side, far away from the bottom of the counter bore, of the damping disc, the belleville spring is abutted to the driven disc, and a plurality of connecting parts which are inserted on the driven disc are arranged on the periphery of the damping disc.

A damping connection method comprises the steps of connecting a driving end to a driving disc, connecting a driven end to a driven disc, and arranging a spring group between the driving disc and the driven disc, so that two ends of the spring group are simultaneously abutted against the driving disc and the driven disc, wherein the spring group comprises more than two linear damping springs which are sequentially arranged, and each damping spring is arranged in an arc shape.

As an improvement of the invention, the driving end is an output shaft of an engine flywheel or an electric motor, and the driven end is an input shaft of a transmission.

By adopting the technical scheme, the invention has the following beneficial effects:

1. have more than two and arrange in proper order through the damping spring who lets the arc intracavity, perhaps be the arc through the damping spring with the spring unit in and arrange, stir the back at the absorption moment of torsion, the effect direction of each damping spring in same arc intracavity restores to the throne the elasticity that produces is different, effectively reduces the probability that damping spring resets and shakes, and the shock attenuation effect is better relatively.

2. Because the spring group at each arc-shaped cavity position is the same, the shock absorption effect is further improved under the condition of effectively avoiding the occurrence of inconsistent stress.

3. Because the elasticity of each damping spring in the same arc-shaped cavity is different, the amplitude and the frequency of the vibration which can be absorbed by the damping coupling are greatly improved.

4. Through setting up belleville spring and damping disc, form double-deck shock attenuation antitorque structure, not only help improving the shock attenuation effect, can reduce the axial float moreover to a certain extent.

Drawings

FIG. 1 is a schematic structural view of a damping coupling according to the present invention;

fig. 2 is a radial sectional structure schematic diagram of the damping coupling of the present invention.

The designations in the figures correspond to the following:

10-a driving disc; 11-a first tray;

12-a second tray; 20-a driven disc;

21-spline housing; 30-a spring set;

31-a damping spring; 32-spring seats;

33-a limiting column;

40-a damping disc; 41-a connecting part;

50-belleville spring.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

The embodiment provides a damping connection method for a transmission mechanism, which comprises the following steps:

and S1, connecting the driving end to a driving disc, and connecting the driven end to a driven disc, wherein the driving end can be an output shaft of an engine flywheel or a motor and is fixedly connected with the driving disc in a bolt connection mode, and the driven end can be an input shaft of a transmission or a transmission case and is in transmission connection with the driven disc through a spline sleeve fixedly connected to the center of the driven disc.

And S2, arranging a spring group between the driving disc and the driven disc, and enabling two ends of the spring group to simultaneously abut against the driving disc and the driven disc so as to realize the transmission connection between the driving disc and the driven disc. The spring set comprises more than two linear damping springs which are sequentially arranged, the damping springs are arranged in an arc shape, and the central line of the arc shape and the axial lines of the driving disc and the driven disc are the same straight line. Of course, in order to ensure that each damping spring is arc-shaped, a limiting structure is required to be arranged on the driving disc and/or the driven disc, for example, an arc-shaped groove is formed or an arc-shaped guide rod is arranged.

By adopting the damping connection method, in the rotating process of the driving disc, the driving disc can rotate a certain angle relative to the driven disc, so that the damping spring is compressed to store energy, and then the power is transmitted to the driven disc, therefore, the impact load generated at the rotating moment or accelerating moment of the driving disc can be absorbed by the damping spring, and the vibration is effectively avoided; when the driving disc decelerates instantaneously or stops rotating instantaneously, the damping springs release stored energy, the generated elastic force is different because the damping springs are arranged in an arc shape, and the elastic force direction of each damping spring also has a small-angle change in the process of releasing the stored energy, so that the vibration is effectively avoided.

The embodiment also provides a damping coupling designed based on the above damping connection manner, as shown in fig. 1-2, the damping coupling includes a driving disc 10 and a driven disc 20 coaxially arranged with each other, wherein the driving disc 10 includes a first disc body 11 and a second disc body 12 fixedly connected with each other by a connecting bolt, specifically, the connecting bolt is distributed on the periphery of the driving disc 10, a cavity is formed between the first disc body 11 and the second disc body 12, the driven disc 20 is located in the cavity between the first disc body 11 and the second disc body 12, and the driven disc 20 can rotate relative to the driving disc 10, and the structure for achieving the relative rotation between the driving disc 10 and the driven disc 20 can be a conventional structure, such as the driving disc 10 and the driven disc 20 do not contact with each other or are rotationally connected. The driven disc 20 is fixedly connected with a spline housing 21 which is coaxially arranged with the driven disc 20, and of course, a through hole needs to be formed in the driving disc 10 so that the spline housing 21 can penetrate out of the cavity, so that an input shaft of a transmission or a transmission case can be in transmission connection with the driven disc 20 through the spline housing 21.

The driving disc 10 is provided with a first arc-shaped groove, the driven disc 20 is provided with a second arc-shaped groove at a position corresponding to the first arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove which correspond to each other jointly form an arc-shaped cavity, the arc-shaped cavity is convex towards the axis direction deviating from the driving disc 10 or the driven disc 10, concretely, the arc center of the arc-shaped cavity is positioned on the axis of the driving disc 10 or the driven disc 20, the first arc-shaped grooves which correspond to each other and are arranged are respectively arranged on the first disc body 11 and the second disc body 12 of the driving disc 10, the second arc-shaped groove arranged on the driven disc 20 is a through groove which is through from front to back, the front side and the back side of the second arc-shaped groove are respectively communicated with the first arc-shaped groove on the first disc body 11 and the first. The number of the arc-shaped cavities is preferably more than two, and each arc-shaped cavity is uniformly distributed by taking the axis of the driving disc 10 or the driven disc 20 as the center, namely, the number of the first arc-shaped grooves and the number of the second arc-shaped grooves which correspond to each other are also more than two respectively.

The spring sets 30 are arranged in the arc-shaped cavities, and two ends of each spring set 30 are simultaneously abutted against the end parts of the corresponding first arc-shaped groove and the corresponding second arc-shaped groove, so that the spring sets 30 are compressed as long as relative rotation exists between the driving disc 10 and the driven disc 20. The spring groups 30 have the same structure, taking one of the spring groups 30 as an example, the spring group 30 includes more than two linear damping springs 31 (i.e. conventional spiral compression springs with a central shaft) sequentially arranged in an arc shape along the corresponding arc-shaped cavity, an included angle smaller than 180 ° is formed between two adjacent damping springs 31, i.e. the damping springs 31 are linear, but the two adjacent damping springs 31 are not on the same straight line, so that the damping springs 31 can be arranged in an arc shape, of course, the two adjacent damping springs 31 abut against each other, in order to improve the stability of force transmission between the two adjacent damping springs 31, in this embodiment, two ends of each damping spring 31 are respectively sleeved with spring seats 32 slidably connected in the arc-shaped cavity, and each spring seat 32 is provided with a guide hole matched with the corresponding damping spring 31. In addition, the elasticity of the damping springs 31 in the same arc-shaped cavity is different from each other, that is, the elasticity of the damping springs 31 in the same group of spring groups 30 is different from each other, so that the amplitude and the frequency of the vibration which can be absorbed by the damping coupling can be greatly improved.

Because the elasticity of the damping springs 31 in the same arc-shaped cavity is different from each other, when in use, the damping spring 31 with the lowest elasticity is most easily compressed and also is compressed first, compared with other damping springs, the damping spring 31 with the lowest elasticity can reach the service life limit earlier, and further the service life of the whole damping coupling is influenced, in order to overcome the problem, preferably, the damping spring 31 with the lowest elasticity is provided with a limiting structure for limiting the compression stroke of the damping spring 31, in the embodiment, the limiting structure is that a limiting column 33 is inserted in the corresponding damping spring 31, namely, a limiting column 33 is inserted in the damping spring 31 with the lowest elasticity, the length of the limiting column 33 is smaller than the pre-compression length of the damping spring 31 with the lowest elasticity, wherein the pre-compression length of the damping spring 31 refers to the length of the damping spring 31 when the damping coupling is installed behind the arc-shaped cavity and no torque is input, thus, when in use, the damping spring 31 with the minimum elasticity is compressed to the length equal to the spacing column 33 and then is not compressed continuously, but is compressed to the next damping spring in the corresponding spring group 30, namely, the damping spring with the minimum elasticity does not reach the compression limit when in use, and the service life of the damping spring 31 is effectively prolonged. Of course, the above-described stopper posts 33 may be provided to the other damper springs 31 as necessary. It should be noted that the limiting column 33 may slide in the damping spring 31, or may be fixedly connected to one of the spring seats 32. Besides, in addition to the above-mentioned limiting structure, other limiting structures may also be adopted to limit the compression stroke of the damping spring 31 with the minimum elasticity, for example, limit sleeves are fixedly connected or integrally connected to the spring seats 32 at the two ends of the minimum damping spring 31 on the damping spring 31, and after the damping spring 31 is compressed to a predetermined stroke, the opposite ends of the two limit sleeves abut against each other, so as to ensure that the damping spring 31 is not compressed further.

Preferably, a counter bore is formed in one side of the first disc body 11 and/or the second disc body 12 facing the driven disc 20, a damping disc 40 which is sleeved outside the spline housing 21 and is not connected with the spline housing 21 is abutted to the bottom of the counter bore, a belleville spring 50 is abutted to one side of the damping disc 40 far away from the bottom of the counter bore, the belleville spring 50 is also sleeved outside the spline housing 21 and is not connected with the spline housing 21, the belleville spring 50 is abutted to the driven disc 20, a plurality of connecting portions 41 which are inserted into the driven disc 20 are arranged on the periphery of the damping disc 40, and certainly, a connecting hole for inserting the connecting portion 41 needs to be formed in the driven disc 20. Therefore, a double-layer damping anti-torsion structure can be formed, the damping effect is improved, and the axial movement can be reduced to a certain degree.

The damping coupling provided by the embodiment is used in the same way as a conventional damping coupling, but has better damping and torsion-resistant effects.

The present invention is described in detail with reference to the accompanying drawings, but the embodiments of the present invention are not limited to the above embodiments, and those skilled in the art can make various modifications to the present invention based on the prior art, for example, the damping spring in the above embodiments is changed to a damping rubber or a hydraulic spring, and these are within the scope of the present invention.