CN204592136U - Upper and lower distributed double frequency torsional vibration damper - Google Patents
Upper and lower distributed double frequency torsional vibration damper Download PDFInfo
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- CN204592136U CN204592136U CN201520106657.6U CN201520106657U CN204592136U CN 204592136 U CN204592136 U CN 204592136U CN 201520106657 U CN201520106657 U CN 201520106657U CN 204592136 U CN204592136 U CN 204592136U
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- mass inertia
- inertia block
- rubber
- mounting flange
- block
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Abstract
A kind of upper and lower distributed double frequency torsional vibration damper, relates to a kind of torsional vibration damper, comprise mass inertia block I, mass inertia block II, absorber rubber I, absorber rubber II, spacing back-up ring and for mounting flange; Mass inertia block I is connected by absorber rubber I sulfuration with mounting flange, and mass inertia block II is connected by absorber rubber II sulfuration with spacing back-up ring, together with mounting flange inner peripheral surface and spacing back-up ring outer peripheral surface are fitted in by interference fit; The natural frequency system that mass inertia block I, absorber rubber I and mounting flange and mass inertia block II, absorber rubber II and limiting block circle define on same direction to be had two to be independent of each other, can work respectively.The utility model can meet solution two band resonant noise problems simultaneously, have again can prevent mass inertia block when high speed operation by turn get rid of, vibration and noise reducing is good, and working band is wide, structure is simple, is easy to apply.
Description
Technical field
The utility model relates to a kind of torsional vibration damper, particularly relates to a kind of upper and lower distributed double frequency torsional vibration damper being applied to front-engine rear-drive electrical automobile transmission shaft.
Background technique
Reduce or eliminate rear driving transmission shaft torsional resonance noise, improve the riding comfort of vehicle, it is one of important content of the design of current domestic automobile and manufacturing enterprise NVH work, torsional vibration damper or mass bumper are installed in the position maximum at amplitude, are to reduce or eliminate transmission shaft torsional resonance comparatively to commonly use and effective means.
Torsional vibration is a complicated vibration system, multiple band resonant can be there is in transmission system under multiple vibrational excitation, the torsional vibration damper needed requires the vibration-damping function that simultaneously can meet several or multiple dominant resonant frequency band, namely requires that vibration damper has several or multiple natural frequency.But, the torsional vibration damper that current market at home generally uses is relatively simple for structure, as shown in Fig. 5 and Fig. 6 of accompanying drawing, only there is a natural frequency in one direction, the resonance noise that single vibration damper can only solve a certain frequency band being installed, in order to meet the vibration damping needs compared with wide resonance frequency band, often needing several or multiple vibration damper is installed, this narrow limitation in cost, technique etc. is very large, cannot apply.
Simultaneously, as shown in Fig. 5 and Fig. 6 of accompanying drawing, because this structure is simpler, substantially be all that mass inertia block is connected by vulcanized rubber with mounting flange, during assembling by pilot hole in mounting flange and transmission shaft fastening, do not adopt the spacing design of effective Anti-extrusion, cause in actual use, vehicle is when anxious acceleration and deceleration, emergency braking or vibration are larger, due to the unexpected damage of rubber time serious, mass inertia block exists and is got rid of the hidden danger deviating to injure other parts of the transmission shaft such as pipe fitting, fuel tank periphery under High Rotation Speed effect of inertia, jeopardizes traffic safety.
Summary of the invention
The technical problems to be solved in the utility model is: provide one can meet solution two band resonant noise problems simultaneously, have again can prevent mass inertia block when high speed operation by turn get rid of the upper and lower distributed double frequency torsional vibration damper for front-engine rear-drive electrical automobile transmission shaft deviate from.
The technological scheme solved the problems of the technologies described above is: a kind of upper and lower distributed double frequency torsional vibration damper, comprises mass inertia block I, mass inertia block II, absorber rubber I, absorber rubber II, spacing back-up ring and the mounting flange for being fastenedly connected with transmission shaft; Described mass inertia block I is connected by absorber rubber I sulfuration with mounting flange, and mass inertia block II is connected by absorber rubber II sulfuration with spacing back-up ring, together with mounting flange inner peripheral surface and spacing back-up ring outer peripheral surface are fitted in by interference fit; The natural frequency system that described mass inertia block I, absorber rubber I and mounting flange and mass inertia block II, absorber rubber II and limiting block circle define on same direction to be had two to be independent of each other, can work respectively.
Further technological scheme of the present utility model is: described absorber rubber I has multiple, and in adpting flange rim, outer peripheral surface is spacedly distributed; Described absorber rubber II is provided with multiple, is spacedly distributed along inner peripheral surface at spacing back-up ring.
Described mass inertia block I is respectively equipped with step hole at two end faces; Described mounting flange is provided with multiple block in flanged surface side, and this block is spacedly distributed along the flanged surface excircle of mounting flange, and is in staggered distribution with absorber rubber I; And block is positioned at the step hole of one of them end face of mass inertia block I.
Described mounting flange is provided with mesopore and pilot hole at flanged surface, and described pilot hole is multiple, and circumferentially arranges at equal intervals on flanged surface.
Described spacing back-up ring is provided with rib and lower stop edge in the side relative with the flanged surface of mounting flange; Wherein go up the step hole that rib is positioned at another end face of mass inertia block I.
Yielding rubber I is respectively arranged with at mass inertia block I and the radial and axial spacing corresponding circle side face of upper rib; Yielding rubber II is respectively arranged with at mass inertia block I and the radial and axial spacing corresponding circle side face of block; This yielding rubber I is connected with mass inertia block I sulfuration with yielding rubber II, and is connected with absorber rubber I in absorber rubber I distribution place.
Mass inertia block II and the spacing corresponding circle side face of lower stop edge axis are provided with yielding rubber III; Spacing corresponding circle side face inside mass inertia block II with mounting flange flanged surface is provided with yielding rubber IV; This yielding rubber III, yielding rubber IV are connected with mass inertia block II sulfuration, and are connected with absorber rubber II in absorber rubber II distribution place.
Owing to adopting said structure, the upper and lower distributed double frequency torsional vibration damper of the utility model compared with prior art, has following beneficial effect:
1. can meet solution two band resonant noise problems simultaneously:
Because the utility model comprises mass inertia block I, mass inertia block II, absorber rubber I, absorber rubber II, spacing back-up ring and the mounting flange for being fastenedly connected with transmission shaft; Described mass inertia block I is connected by absorber rubber I sulfuration with mounting flange, and mass inertia block II is connected by absorber rubber II sulfuration with spacing back-up ring, together with mounting flange inner peripheral surface and spacing back-up ring outer peripheral surface are fitted in by interference fit; The natural frequency system that described mass inertia block I, absorber rubber I and mounting flange and mass inertia block II, absorber rubber II and limiting block circle define on same direction to be had two to be independent of each other, can work respectively.
Therefore, the utility model produces noise vibration frequency by the natural frequency value that arranges vibration damper and vehicle drive system close to or consistent, the reverse inertial force of mass inertia block when resonating is utilized to offset vibration force, rubber produces frictional heat with attenuation vibration energy when being out of shape simultaneously, reaches and reduces resonance noise object.In addition, the utility model is by adjusting the weight of mass inertia block I and mass inertia block II, and the volume of adjustment absorber rubber I and absorber rubber II, hardness or rigidity, can reach and there are two independently natural frequency parameter objects, to realize decaying or eliminating two different resonance peaks, reduce resonance noise simultaneously.
2. can prevent from mass inertia block from being turned when high speed operation to get rid of:
Because the utility model is at one end provided with block, rib, lower stop edge on the other end is arranged, wherein mass inertia block I is limited in middle certain range of motion by block and upper rib; With lower stop edge, mass inertia block II is limited in middle certain range of motion inside the flanged surface of mounting flange, therefore, even if the utility model is when when serious, rubber produces unexpected damage, mass inertia block I and mass inertia block II also can not be got rid of at High Rotation Speed or when vibrating larger deviates to injure other parts of the transmission shaft such as pipe fitting, fuel tank periphery, jeopardizes traffic safety.
3. vibration and noise reducing is good:
Because the utility model is respectively arranged with yielding rubber I at mass inertia block I and the radial and axial spacing corresponding circle side face of upper rib; Yielding rubber II is respectively arranged with at mass inertia block I and the radial and axial spacing corresponding circle side face of block.And the utility model is also provided with yielding rubber III at mass inertia block II and the spacing corresponding circle side face of lower stop edge axis; Spacing corresponding circle side face inside mass inertia block II with mounting flange flanged surface is provided with yielding rubber IV.The spacing noise contacting or collide generation can also be reduced by the buffering of these yielding rubbers with damping effect, reach the object improving car load NVH performance.
4. be conducive to matched design and the application of more resonance modes:
Because of the present utility model pair of natural frequency structure is for distribute up and down, the adjustment space of the weight that mass inertia is fast and absorber rubber volume and leeway are comparatively large, are conducive to matched design and the application of more resonance modes.
5. wide, the structure of working band simple, be easy to apply:
The utility model also has that working band is wide, the simple feature of structure, is easy to apply.
Below, in conjunction with the accompanying drawings and embodiments the technical characteristics of the upper and lower distributed double frequency torsional vibration damper of the utility model is further described.
Accompanying drawing explanation
Fig. 1 ~ Fig. 2: the structural representation of the upper and lower distributed double frequency torsional vibration damper of the utility model, wherein,
Fig. 1: plan view,
The front sectional view of Fig. 2: Fig. 1,
Fig. 3: the three-dimensional structure diagram of mounting flange described in embodiment one,
Fig. 4: the three-dimensional structure diagram of spacing back-up ring described in embodiment one,
Fig. 5 ~ Fig. 6: the structural representation of existing single-frequency torsional vibration damper, wherein,
Fig. 5: plan view,
The front sectional view of Fig. 6: Fig. 5.
In figure:
1-mass inertia block I, 2-absorber rubber I, 21-yielding rubber I, 22-yielding rubber II,
3-mounting flange, 31-pilot hole, 32-mesopore, 33-block,
The spacing back-up ring of 4-, 41-lower stop edge, the upper rib of 42-,
5-absorber rubber II, 51-yielding rubber III, 52-yielding rubber IV,
6-mass inertia block II.
Embodiment
embodiment one:
A kind of upper and lower distributed double frequency torsional vibration damper, as shown in Fig. 1 ~ Fig. 2, comprises mass inertia block I 1, mass inertia block II 6, absorber rubber I 2, absorber rubber II 5, spacing back-up ring 4 and the mounting flange 3 for being fastenedly connected with transmission shaft; Described mass inertia block I 1 is connected by absorber rubber I 2 sulfuration with mounting flange 3, mass inertia block II 6 is connected by absorber rubber II 5 sulfuration with spacing back-up ring 4, together with mounting flange 3 inner peripheral surface and spacing back-up ring 4 outer peripheral surface are fitted in by interference fit; Described mass inertia block I 1, absorber rubber I 2 and mounting flange 3 and mass inertia block II 6, absorber rubber II 5 and spacing back-up ring 4 define on same direction the natural frequency system having two to be independent of each other, can work respectively.
Described absorber rubber I 2 has 4, is spacedly distributed along outer peripheral surface at mounting flange 3; Described absorber rubber II 5 is provided with 4, is spacedly distributed along inner peripheral surface at spacing back-up ring 4.
Described mass inertia block I 1 is respectively equipped with step hole at two end faces; Described mounting flange 3 is provided with 4 blocks 33 in flanged surface side, this block 33 is spacedly distributed along the flanged surface excircle of mounting flange 3, and be in staggered distribution with absorber rubber I 2, and block 33 is positioned at the step hole of one of them end face of mass inertia block I 1; Mounting flange 3 is provided with mesopore 32 and pilot hole 31 at flanged surface, and described pilot hole 31 is 4, and circumferentially arranges at equal intervals on flanged surface.
Described spacing back-up ring 4 is provided with rib 42 and lower stop edge 41 in the side relative with the flanged surface of mounting flange 3, wherein goes up the step hole that rib 42 is positioned at another end face of mass inertia block I 1.
Yielding rubber I 21 is respectively arranged with at mass inertia block I 1 and the radial and axial spacing corresponding circle side face of upper rib 42; Yielding rubber II 22 is respectively arranged with at mass inertia block I 1 and the radial and axial spacing corresponding circle side face of block 33; This yielding rubber I 21 is connected with mass inertia block I 1 sulfuration with yielding rubber II 22, and is connected with absorber rubber I 2 in absorber rubber I 2 distribution place.
Mass inertia block II 6 and the spacing corresponding circle side face of lower stop edge 41 axis are provided with yielding rubber III 51; Spacing corresponding circle side face inside mass inertia block II 6 with mounting flange 3 flanged surface is provided with yielding rubber IV 52; This yielding rubber III 51, yielding rubber IV 52 are connected with mass inertia block II 6 sulfuration, and are connected with absorber rubber II 5 in absorber rubber II 5 distribution place.
One as the present embodiment converts, and according to different automobile types coupling needs, described absorber rubber I 2 also can be 2,3, or is greater than 4; Equally, absorber rubber II 5 also can be 2,3, or is greater than 4; Block 33 also can be 2,3, or is greater than 4, but the quantity one_to_one corresponding of the quantity of block 33 and absorber rubber I 2.
As another conversion of the present embodiment, according to different automobile types coupling needs, described pilot hole 31 also can be 2,3, or is greater than 4.
Claims (7)
1. a distributed double frequency torsional vibration damper about, is characterized in that: comprise mass inertia block I (1), mass inertia block II (6), absorber rubber I (2), absorber rubber II (5), spacing back-up ring (4) and the mounting flange (3) for being fastenedly connected with transmission shaft; Described mass inertia block I (1) is connected by absorber rubber I (2) sulfuration with mounting flange (3), mass inertia block II (6) is connected by absorber rubber II (5) sulfuration with spacing back-up ring (4), together with mounting flange (3) inner peripheral surface and spacing back-up ring (4) outer peripheral surface are fitted in by interference fit; Described mass inertia block I (1), absorber rubber I (2) and mounting flange (3) and mass inertia block II (6), absorber rubber II (5) and spacing back-up ring (4) define on same direction the natural frequency system having two to be independent of each other, can work respectively.
2. upper and lower distributed double frequency torsional vibration damper according to claim 1, is characterized in that: described absorber rubber I (2) has multiple, is spacedly distributed along outer peripheral surface at mounting flange (3); Described absorber rubber II (5) is provided with multiple, is spacedly distributed along inner peripheral surface at spacing back-up ring (4).
3. upper and lower distributed double frequency torsional vibration damper according to claim 2, is characterized in that: described mass inertia block I (1) is respectively equipped with step hole at two end faces; Described mounting flange (3) is provided with multiple block (33) in flanged surface side, and this block (33) is spacedly distributed along the flanged surface excircle of mounting flange (3), and is in staggered distribution with absorber rubber I (2); And block (33) is positioned at the step hole of one of them end face of mass inertia block I (1).
4. upper and lower distributed double frequency torsional vibration damper according to claim 3, it is characterized in that: described mounting flange (3) is provided with mesopore (32) and pilot hole (31) at flanged surface, described pilot hole (31) for multiple, and is circumferentially arranged at equal intervals on flanged surface.
5. upper and lower distributed double frequency torsional vibration damper according to claim 3, is characterized in that: described spacing back-up ring (4) is provided with upper rib (42) and lower stop edge (41) in the side relative with the flanged surface of mounting flange (3); Wherein go up the step hole that rib (42) is positioned at another end face of mass inertia block I (1).
6. upper and lower distributed double frequency torsional vibration damper according to claim 5, is characterized in that: be respectively arranged with yielding rubber I (21) at mass inertia block I (1) and the radial and axial spacing corresponding circle side face of upper rib (42); Yielding rubber II (22) is respectively arranged with at mass inertia block I (1) and the radial and axial spacing corresponding circle side face of block (33); This yielding rubber I (21) is connected with mass inertia block I (1) sulfuration with yielding rubber II (22), and is connected with absorber rubber I (2) in absorber rubber I (2) distribution place.
7. upper and lower distributed double frequency torsional vibration damper according to claim 5, is characterized in that: the spacing corresponding circle side face axial with lower stop edge (41) at mass inertia block II (6) is provided with yielding rubber III (51); Spacing corresponding circle side face inside mass inertia block II (6) with mounting flange (3) flanged surface is provided with yielding rubber IV (52); This yielding rubber III (51), yielding rubber IV (52) are connected with mass inertia block II (6) sulfuration, and are connected with absorber rubber II (5) in absorber rubber II (5) distribution place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106657.6U CN204592136U (en) | 2015-02-13 | 2015-02-13 | Upper and lower distributed double frequency torsional vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520106657.6U CN204592136U (en) | 2015-02-13 | 2015-02-13 | Upper and lower distributed double frequency torsional vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592136U true CN204592136U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520106657.6U Expired - Fee Related CN204592136U (en) | 2015-02-13 | 2015-02-13 | Upper and lower distributed double frequency torsional vibration damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN204592136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696430A (en) * | 2015-02-13 | 2015-06-10 | 柳州金鸿橡塑有限公司 | Vertically-distributed double-frequency torsional shock absorber |
-
2015
- 2015-02-13 CN CN201520106657.6U patent/CN204592136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696430A (en) * | 2015-02-13 | 2015-06-10 | 柳州金鸿橡塑有限公司 | Vertically-distributed double-frequency torsional shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20170213 |