CN112360925A - Part knocking suppression device - Google Patents
Part knocking suppression device Download PDFInfo
- Publication number
- CN112360925A CN112360925A CN202011374635.XA CN202011374635A CN112360925A CN 112360925 A CN112360925 A CN 112360925A CN 202011374635 A CN202011374635 A CN 202011374635A CN 112360925 A CN112360925 A CN 112360925A
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- CN
- China
- Prior art keywords
- spline
- damping ring
- damping
- spring
- suppression device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/139—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by friction-damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/13164—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by the supporting arrangement of the damper unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a part knocking suppression device which is arranged on the side of a double-mass flywheel shock absorber, namely the power output side, a plurality of damping rings are arranged at the radial position of a spline torque transmission structure to form a complete circle, spring mounting grooves are formed at the two ends of each damping ring, two adjacent spring mounting grooves which are radially arranged form a complete spring mounting groove, a pre-tightening spring is arranged in each damping ring, the axial limiting surface of each damping ring is in contact with the adjacent end surface on an input spline, the pre-tightening springs enable a plurality of sections of damping rings to shrink inwards, and a mutual friction damping performance is formed in the torque transmission process. The invention has the advantages of an adduction type multi-section damping ring structure and wider application range.
Description
Technical Field
The invention relates to a part knocking suppression device, which is mainly applied to various part interfaces needing torque transmission in an automobile power assembly system, such as a spline connection structure and the like.
Background
The spline mainly realizes functions such as moment of torsion transmission, automatic aligning, through the definition to spline precision grade, through promoting the spline precision in order to reduce spline flank clearance, reaches the effect that reduces vibration and spline tooth and strike, but promotes the machining precision of spline and can directly lead to the rising of cost.
At present, splines in various power assembly systems of automobiles are widely applied, for example, in structures such as a manual transmission, an automatic transmission and a stepless transmission, the conventional spline structure inevitably has spline tooth side gaps due to assembly requirements, and the spline teeth of an input spline and an output spline can be repeatedly knocked by fluctuating torque, so that vibration is caused, the spline teeth are knocked, the spline is seriously and directly broken, and the knocking abnormal sound of the splines is heard in a cab.
Chinese patent ZL201920414318.2 part strikes suppression device ", discloses a damping ring and supports through elastic element, provides the structure of the damping ring formula of expanding outward, and the damping ring makes cylindrical friction by-product produce the damping through the mode of expanding outward and plays the effect of suppressing the part and strike. The component knocking suppressing device is mounted on the clutch side, i.e., the power receiving side. However, in the case where the spatial structure is limited, the arrangement on the power receiving side is not possible, and the arrangement on the power output side is necessary, and this technical solution cannot be applied. This is where the application needs to be focused on.
Disclosure of Invention
The invention aims to provide a part knocking suppression device for suppressing spline knocking.
In order to solve the technical problems, the invention provides a part knocking suppression device which is arranged on the side of a double-mass flywheel shock absorber, namely the power output side, a plurality of damping rings are arranged at the radial position of a spline torque transmission structure to form a complete circle, spring mounting grooves are formed in two ends of each damping ring, a complete spring mounting groove is formed in two adjacent spring mounting grooves which are radially arranged, a pre-tightening spring is mounted in each spring mounting groove, the axial limiting surface of each damping ring is in contact with the adjacent end surface on an input spline, the multi-section damping rings are inwards contracted by the pre-tightening spring, and a mutual friction damping performance is formed in the torque transmission process.
And a spring limiting step is arranged in the spring mounting groove to limit the mounting space of the pre-tightening spring.
And an installation hasp is arranged on the axial limiting surface of the damping ring and penetrates through the damping ring installation groove on the input spline to perform axial positioning.
The input spline is provided with a damping ring mounting groove and a spline A, and the spline A is connected with the output spline to transmit torque. The input spline transfers torque of the engine to the output spline.
A spline B, an outer friction surface and a torque transmission piece are arranged on the output spline, and the spline B is connected with the spline A to transmit torque. The output spline transfers torque to a rear disposed component by connecting with an adjacent part.
The part knocking suppression device is arranged on the side of a double-mass flywheel shock absorber, namely the power output side, and generates friction with parts in contact through an inward-folding structure, so that the damping performance generated by a radial cylindrical surface or a conical surface is provided, and the damping performance is designed to be adjusted in the radial direction according to the specific working condition of the whole vehicle. Assuming that the whole vehicle has spline knocking sound under the idling working condition, the invention designs the damping performance according to the idling torque and restrains the spline knocking. The cylindrical surface or the conical surface used by the invention generates damping mode, thereby effectively covering the axial accumulated tolerance and always keeping the stability of the damping.
The invention has the following advantages:
1) the damping device generates damping by utilizing the radial space, is convenient to arrange in the original structure, and realizes the functions of avoiding the knocking of spline teeth, prolonging the service life of parts and the like;
2) the cylindrical surface of the damping ring generates damping, so that the problem of unstable damping caused by axial accumulated tolerance can be avoided;
3) the invention provides an adduction type multi-section damping ring structure which is wider in application range.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of an assembly of the present invention;
FIG. 2 is a schematic cross-sectional view of the assembly of the present invention;
FIG. 3 is a schematic view of the assembly of the present invention;
FIG. 4 is a schematic view of a damping ring component of the present invention;
FIG. 5 is a schematic view of an assembly of the present invention;
the reference numbers in the figures illustrate:
1-input spline;
101-damping ring mounting groove; 102-spline a;
2-a damping ring;
201-installing hasp on damping ring; 202-spring mounting groove;
203-inner friction surface; 204-axial limiting surface;
205-spring limit step;
3-output spline;
301-rivet holes; 302-spline B;
303-outer friction surface;
4-pre-tightening the spring.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 1 shows a schematic view of an assembly of the present invention; FIG. 2 shows a schematic cross-sectional view of an assembly of the present invention; FIG. 3 shows a schematic view of the assembly of the present invention; FIG. 4 shows a schematic view of a damping ring component of the present invention; figure 5 shows a schematic view of the assembly of the present invention.
As shown in fig. 1 to 3, the present invention provides a part knocking suppressing device, an input spline 1 transmits torque of an engine to an output spline 3, the output spline 3 transmits the torque to a rear-end arranged part by connecting with its adjacent part, the input spline 1 is generally connected with a dual mass flywheel, a damper, and the output spline 3 is generally connected with a clutch, a propeller shaft, and the like.
As shown in fig. 2, a damping ring mounting groove 101 and a spline a102 are arranged on the input spline 1, a rivet hole 301, a spline B302 and an outer friction surface 303 are arranged on the output spline 3, torque transmission is performed by connecting the spline a102 with the spline B302, and when torque passes through the splines, spline teeth of the input spline 1 and the output spline 3 are repeatedly knocked due to fluctuating torque due to tooth side gaps between the splines. The rivet hole 301 on the output spline 3 transmits torque to a component arranged at the rear end, in the embodiment, the rivet hole 301 transmits torque through riveting, and the torque transmission is a connection mode of any transmission torque.
As shown in fig. 4, the damping ring 2 is provided with a damping ring mounting buckle 201, a spring mounting groove 202, an inner friction surface 203, an axial limiting surface 204 and a spring limiting step 205. As shown in fig. 5, the damping ring mounting hasps 201 penetrate through the damping ring mounting grooves 101 on the input spline 1 to perform axial positioning, a certain movable amount is ensured in the radial direction, the axial limiting surface 204 is in contact with the adjacent end surface on the input spline 1, the damping ring 2 forms a completed circle by radial arrangement, in this embodiment, there are two sections of damping rings 2, and the two damping ring mounting hasps 201 correspond to the two damping ring mounting grooves 101. Any multi-section damping ring 2 of the invention is matched with a corresponding number of damping ring mounting grooves 101. Spring mounting grooves 202 are arranged at two ends of the damping ring 2, through radial arrangement, two adjacent spring mounting grooves 202 form a complete spring mounting groove, the pre-tightening spring 4 is mounted in the spring mounting groove, and meanwhile, the spring limiting step 205 limits the mounting space of the pre-tightening spring 4 to prevent the pre-tightening spring 4 from falling. The damping rings 2 which are arranged in the radial direction enable the multi-section damping rings 2 to contract inwards by installing the pre-tightening springs 4, the inner friction surfaces 203 form a circle with the diameter smaller than the diameter of the outer friction surfaces 303 on the output spline 3, when the outer friction surfaces 303 are embedded into the cylindrical surfaces formed by the inner friction surfaces 203, the two ends of the damping rings 2 compress the pre-tightening springs 4 and are expanded outwards when the inner friction surfaces 203 are stressed, the diameter of the cylindrical surfaces formed by the inner friction surfaces 203 is increased to be equal to the diameter of the outer friction surfaces 303, the inner friction surfaces 203 are tightly attached to the outer friction surfaces 303 by the force of the pre-tightening springs 4, the two damping rings form a mutual friction damping performance in the torque transmission process, and the damping can ensure that the splines are prevented from being knocked due to tooth side gaps.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A part knock suppressing device characterized by: this part strikes suppression device and installs in dual mass flywheel shock absorber side, power take off side promptly, pass the radial position of turning round the structure at the spline and arrange a plurality of damping rings, form complete circular, the damping ring both ends are equipped with spring mounting groove, two adjacent spring mounting grooves that radially arrange form a complete spring mounting groove, pretension spring mounting is wherein, the axial spacing face of damping ring and the adjacent end face contact on the input spline, pretension spring makes multistage damping ring inwards contract, pass and turn round the in-process and form a frictional damping performance each other.
2. The parts strike suppression device according to claim 1, wherein: and a spring limiting step is arranged in the spring mounting groove to limit the mounting space of the pre-tightening spring.
3. The parts strike suppression device according to claim 1, wherein: and an installation hasp is arranged on the axial limiting surface of the damping ring and penetrates through the damping ring installation groove on the input spline to perform axial positioning.
4. The parts strike suppression device according to claim 1, wherein: the input spline is provided with a damping ring mounting groove and a spline A, and the spline A is connected with the output spline to transmit torque.
5. The parts strike suppression device according to claim 4, wherein: a spline B, an outer friction surface and a torque transmission piece are arranged on the output spline, and the spline B is connected with the spline A to transmit torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011374635.XA CN112360925A (en) | 2020-11-30 | 2020-11-30 | Part knocking suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011374635.XA CN112360925A (en) | 2020-11-30 | 2020-11-30 | Part knocking suppression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112360925A true CN112360925A (en) | 2021-02-12 |
Family
ID=74536566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011374635.XA Pending CN112360925A (en) | 2020-11-30 | 2020-11-30 | Part knocking suppression device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112360925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325099A (en) * | 2021-05-10 | 2022-11-11 | 上汽通用汽车有限公司 | Clutch system and vehicle |
-
2020
- 2020-11-30 CN CN202011374635.XA patent/CN112360925A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325099A (en) * | 2021-05-10 | 2022-11-11 | 上汽通用汽车有限公司 | Clutch system and vehicle |
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