CN204083028U - Silicone oil torsional vibration damper - Google Patents
Silicone oil torsional vibration damper Download PDFInfo
- Publication number
- CN204083028U CN204083028U CN201420277684.5U CN201420277684U CN204083028U CN 204083028 U CN204083028 U CN 204083028U CN 201420277684 U CN201420277684 U CN 201420277684U CN 204083028 U CN204083028 U CN 204083028U
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- Prior art keywords
- inertia ring
- millimeter
- vibration damper
- ring
- face
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- 229920002545 silicone oil Polymers 0.000 title claims description 35
- 210000001624 hip Anatomy 0.000 claims description 28
- 241000826860 Trapezium Species 0.000 claims description 12
- 239000003921 oil Substances 0.000 abstract description 21
- 239000006096 absorbing agent Substances 0.000 abstract description 12
- 230000035939 shock Effects 0.000 abstract description 12
- 230000001133 acceleration Effects 0.000 abstract description 10
- 238000013016 damping Methods 0.000 abstract description 9
- 229910052710 silicon Inorganic materials 0.000 abstract description 9
- 239000010703 silicon Substances 0.000 abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 6
- 238000004939 coking Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
Landscapes
- Vibration Dampers (AREA)
Abstract
The utility model relates to a silicon oil torsional vibration damper belongs to engine damping technical field. The inertia ring sealing structure comprises a shell and a side cover matched with the shell, wherein an annular groove is formed in one end face of the shell, the side cover covers an opening of the annular groove to form a sealing inner cavity, an inertia ring is installed in the sealing inner cavity through a lining sliding sleeve, and a gap between the shell and the inertia ring is filled with silicon oil. The utility model discloses an innovation point lies in the inner circle department thickness of inertia ring is greater than outer lane department thickness, the section of inertia ring is trapezoidal, and the axial clearance between the terminal surface of inertia ring and the sealed intracavity wall forms the wedge, improves the rigidity and the damping of shock absorber under the same condition to under the prerequisite of the reliability of guaranteeing the shock absorber and the compactedness of spatial arrangement, increased the axial clearance of inertia ring and casing, make the shock absorber can adapt to bigger axial acceleration, improved the damping performance of shock absorber, improved the life of shock absorber.
Description
Technical field
The utility model relates to a kind of silicone oil torshional vibration damper, particularly relates to the inertia ring in silicone oil torshional vibration damper, belongs to engine snubber technical field.
Background technique
Silicone oil torshional vibration damper is the one of engine snubber, in engine working process, mainly play the torsional vibration of abatement Crankshaft System, also have certain effect to the reduction of engine crankshaft front end noise and the minimizing of engine crankshaft axial vibration simultaneously.As shown in Figure 1: traditional silicon oil damper is made up of housing 1, side cover 2, inertia ring 3, lining 4, oil fill plug 6 and silicone oil.The front end of bent axle is connected in by the shock absorber casing 1 of steel plate punched (or by casting aft-loaded airfoil), side cover 2 and shock absorber casing 1 form Seal cage, in sealing chamber, inertia ring 3 slides on lining 4, and inertia ring 3 freely can be rotated around the antifriction bush 4 of smooth abrasion-proof.Traditional inertia ring 3 is circular, and its two annular end face is parallel to each other, and forms certain gap between itself and Seal cage inwall, and this gap is full of full-bodied silicone fluid.Work as engine operation, during crankshaft system generation torsional oscillation, because inertia ring 3 rotary inertia is larger, the motion of inertia ring 3 always lags behind the motion of housing 1, forms relative movement between the two, and now between inertia ring 3 and Seal cage inwall, in gap, the viscous damping of silicone oil will consume vibrational energy, thus the torsional vibration of abatement crankshaft system, improve the fatigue life of bent axle, torque ripple of having decayed, decreases the vibration of motor, noise.Tradition vibration damper inertia ring 3 is generally about 0.5 millimeter ~ 0.7 millimeter with Seal cage inwall axial clearance, under given conditions, as inertia ring 3 and the axial clearance of Seal cage may reach 0.35 millimeter, if now bent axle axial acceleration reaches more than 30 times of gravity accleration, then because of the reason of axial acceleration, will produce and firmly contact, frictional heating between inertia ring 3 and housing 1, thus cause vibration damper temperature rise too high, make that silicone oil volatilizees, coking and losing efficacy.
Current existing silicone oil torshional vibration damper is of a great variety, but to vibration damper inertia rings improve less, as China Patent Publication No.: CN203335710U, publication date: on December 11st, 2013, name is called: disclosed by the patent of invention of " a kind of silicon oil damper ", a kind of silicon oil damper, the vibration damper side cover that it comprises shock absorber casing and mates with shock absorber casing, by bearing, inertia rings is installed in shock absorber casing inner chamber, inertia rings inertia rings is provided with arc oil storage tank, when not changing with vibration damper side cover contact length, its oil storage volume of this arc oil storage tank increases, thus add the silicone oil amount injecting oil storage tank, reduce the speed of silicone oil damage and deterioration, improve the life-span of vibration damper.
A kind of good technological scheme improved vibration damper performance, improve vibration damper working life is patent document discloses although above-mentioned, but still there are the following problems for above-mentioned vibration damper: the axial clearance of inertia ring and Seal cage inwall is large not, when bent axle axial acceleration is larger, may because of the reason of axial acceleration between inertia ring and Seal cage inwall, produce hard contact, frictional heating, thus cause vibration damper temperature rise too high fast, makes that silicone oil volatilizees, coking and losing efficacy.If now directly increase inertia ring and Seal cage inwall axial clearance in vibration damper, then vibration damper rigidity and damping and can not be met in the compactedness that space cloth is set up simultaneously.
Summary of the invention
The purpose of this utility model be the axial acceleration of bearing for existing silicone oil torshional vibration damper excessive time, inertia ring easily produces hard contact with Seal cage inwall, frictional heating, thus cause fast vibration damper temperature rise too high, make silicone oil coking and the deficiency lost efficacy, there is provided a kind of and can adapt to larger axle-system axial acceleration, not easily frictional heating makes intensification too high, and the silicone oil torshional vibration damper of silicone oil not easily coking, the compactedness that its operational safety and space are arranged is all better, the further performance improving vibration damper, improves the working life of vibration damper.
For achieving the above object, technical solution of the present utility model is: a kind of silicone oil torshional vibration damper, the side cover that it comprises housing and matches with described housing, the end face of described housing side is provided with annular groove, described side cover covers and forms annular seal space at the opening of this annular groove, on the interior ring-side wall of this annular groove, fixed cover is filled with lining, described lining upper sliding sleeve is installed with inertia ring, it is characterized in that: the section of described inertia ring is that inner ring place thickness is greater than the trapezoidal of outer ring place thickness.
Further, when two waists of the trapezoidal cross-section of described inertia ring are oblique waist, its single annular end face at oblique waist place and the minimum axial gap of Seal cage inwall are 0.7 millimeter ~ 0.9 millimeter, the annular end face at its single oblique waist place larger than minimum axial gap 0.1 millimeter ~ 0.4 millimeter with the maximum axial gap of Seal cage inwall.
Further, when the trapezoidal cross-section of described inertia ring is right-angled trapezium, the annular end face at oblique waist place of this right-angled trapezium and the minimum axial gap of Seal cage inwall are 0.7 millimeter ~ 0.9 millimeter, the annular end face at the oblique waist place of this right-angled trapezium larger than minimum axial gap 0.1 millimeter ~ 0.4 millimeter with the maximum axial gap of Seal cage inwall, the annular end face at straight waist place of this right-angled trapezium and the axial clearance of Seal cage inwall are 0.5 millimeter ~ 0.7 millimeter.
Further, the equal rounding of the rib of described inertia ring.
Compared with prior art, the beneficial effects of the utility model are:
1. inertia ring is arranged to inner ring place thickness and is greater than outer ring place thickness and its section is trapezoidal annulus, make two annular end faces of inertia ring or form wedge gap between one of them and Seal cage inwall, under the prerequisite ensureing to have with existing torshional vibration damper same stiffness and damping requirements (namely calculated by liquid motion analysis and meet rigidity under motion state and damping requirements), increase the axial clearance of vibration damper inertia ring and ring packing cavity wall, add the convenience of axial clearance place silicone oil flowing, efficiently avoid hard friction heating that this place easily produces and heat up too high, make silicone oil torshional vibration damper can adapt to larger axle-system axial acceleration, reduce failure risk.
2. after between ring packing cavity wall and inertia ring, axial clearance increases, while meeting rigidity and damping requirements, the housing of silicone oil torshional vibration damper and the size of inertia ring do not increase yet, and namely the operational safety of the utility model silicone oil torshional vibration damper and bulk compactedness are all guaranteed.
3. the increase of axial clearance between ring packing cavity wall and inertia ring, makes shock absorber casing have better technology capability.
4. the increase of the axial clearance between ring packing cavity wall and inertia ring, also increases the oil reserve in Seal cage, reduces the speed that silicone oil coking damages, extends the life-span of this silicon oil damper.
5. use the technical solution of the utility model, silicone oil torshional vibration damper can adapt to the axle-system axial acceleration of more than 30 times of gravity accleration, effectively improves the ability that silicon oil damper adapts to axle-system axial acceleration, improves silicon oil damper performance.
Accompanying drawing explanation
Fig. 1 is the silicone oil torshional vibration damper schematic diagram of prior art;
Fig. 2 is the structural representation of silicone oil torshional vibration damper of the present utility model;
Fig. 3 is the schematic diagram of the section of inertia ring in Fig. 3;
Fig. 4 is another structural representation of silicone oil torshional vibration damper of the present utility model;
Fig. 5 is the schematic diagram of the section of inertia ring in Fig. 4;
In figure: housing 1, side cover 2, inertia ring 3, lining 4, oil storage tank 5, oil fill plug 6.
Embodiment
Illustrate below in conjunction with accompanying drawing and with specific embodiment mode, the utility model to be described in further detail.
See Fig. 2, a kind of silicone oil torshional vibration damper, the side cover 2 that it comprises housing 1 and matches with described housing 1, described housing 1 is formed by steel plate punched (or by casting aft-loaded airfoil), described housing 1 is fixedly connected on the front end of engine crankshaft, the end face of described housing 1 side is provided with annular groove, described side cover 2 covers the opening at this annular groove, use again and do not need the electron beam welding technology of filler that the side cover 2 after covering and housing 1 are welded formation annular seal space, two longitudinal side walls of this annular seal space parallel, in this annular seal space, lining 4 Fixing shrink ring is in this annular seal space on ring-side wall (i.e. ring-side wall in annular groove), on described lining 4, sliding sleeve is installed with inertia ring 3 again, described inertia ring 3 can be rotated on described lining 4 in free skating, can not slide axially again simultaneously.Described side cover 2 is provided with oil fill plug 6, in order to inject viscosity silicone oil in ring packing inner chamber, the gap between described housing 1 and described inertia ring 3 is made to be full of viscosity silicone oil, the thickness at the inner ring place of described inertia ring 3 is greater than the thickness at outer ring place, and two annular end faces of described inertia ring 3 are plane of inclination.
Composition graphs 3, the section of described inertia ring 3 is that non-right angle is trapezoidal, the one oblique annular end face at waist place of this trapezoidal cross-section and the angle of the radial plane of described inertia ring 3 are α, the annular end face at another oblique waist place of this trapezoidal cross-section and the angle of the radial plane of described inertia ring 3 are β, now two annular end faces of described inertia ring 3 are inclined-plane, form the annulus that inner ring place thickness is greater than outer ring place thickness.Two annular end faces of described inertia ring 3 form wedge gap respectively and between Seal cage inwall, and this wedge gap contributes to the rigidity and the damping that increase silicon oil damper under the same terms.The circumference side, outer ring of described inertia ring 3 parallels with Seal cage outer shroud sidewall (i.e. annular groove outer shroud sidewall).
As shown in Figure 2, this silicone oil torshional vibration damper, is made up of housing 1, side cover 2, inertia ring 3, lining 4, oil fill plug 6 and silicone oil.On described housing 1, the bottom of annular groove inner side surface is also provided with one for increasing the annular oil storage tank 5 of ring packing inner chamber oil reserve, annular seal space is formed by electron beam welding after shock absorber casing 1 and side cover 2 cover, inertia ring 3 in this annular seal space slides over for supporting, locating, the smooth lining 4 of anti-attrition, inertia ring 3 can be trackslipped dynamic on lining 4, can not slide axially again simultaneously.Leave certain gap between this ring packing inner chamber and inertia ring 3, this gap is full of full-bodied silicone fluid.
Two annular end faces of described inertia ring 3 are inclined-plane, this two inclined-plane forms two trapezoidal oblique waists on the trapezoidal cross-section of described inertia ring 3, now this trapezoidal cross-section is that non-right angle is trapezoidal, the annular end face at single oblique waist place on this trapezoidal cross-section and the minimum axial gap of Seal cage inwall are 0.7 millimeter ~ 0.9 millimeter, the annular end face at its single oblique waist place larger than minimum axial gap 0.1 millimeter ~ 0.4 millimeter with the maximum axial gap of Seal cage inwall.Now, the single annular end face of this inertia ring 3 and the maximum axial gap of Seal cage inwall are 0.8 millimeter ~ 1.1 millimeters.
As shown in Figure 3, Fig. 3 is the sectional schematic diagram of inertia ring 3 in Fig. 2, and the section of described inertia ring 3 is that non-right angle is trapezoidal, and its two waist is oblique waist.The one oblique annular end face at waist place of this non-right angle trapezoidal cross-section and the angle of the radial plane of described inertia ring 3 are α, and this angle α is 1 ° ~ 10 °; The annular end face at another oblique waist place of this non-right angle trapezoidal cross-section and the angle of the radial plane of described inertia ring 3 are β, and this angle β is 1 ° ~ 10 °.Now, the surface, place, surface ratio outer ring, inner ring place of the annular end face at the single waist place of the non-right angle trapezoidal cross-section of described inertia ring 3 exceeds 0.1 millimeter ~ 0.4 millimeter in the axial direction.The equal rounding of rib in addition in described inertia ring 3.
As shown in Figure 4, the difference of this graph structure and Fig. 2 is, the section of described inertia ring 3 is right-angled trapezium, and namely an annular end face of described inertia ring 3 forms oblique waist on its right-angled trapezium section, and another annular end face forms straight waist on its right-angled trapezium section.Now, the angle of the annular end face at this oblique waist place and the radial plane of described inertia ring 3 is α, this angle α is 1 ° ~ 10 °, this annular end face be 0.7 millimeter ~ 0.9 millimeter with the minimum axial gap of Seal cage inwall, this annular end face larger than minimum axial gap 0.1 millimeter ~ 0.4 millimeter with the maximum axial gap of Seal cage inwall, now the maximum axial gap of this annular end face and Seal cage inwall is 0.8 millimeter ~ 1.1 millimeters; The annular end face at this straight waist place parallels with the radial plane of described inertia ring 3, and the axial clearance of itself and Seal cage inwall is 0.5 millimeter ~ 0.7 millimeter.
As shown in Figure 5, this Fig. 5 is the sectional schematic diagram of inertia ring 3 in Fig. 4, and the difference of itself and Fig. 3 is, the section of described inertia ring 3 is right-angled trapezium.
Above content is the further description done the utility model in conjunction with embodiment; can not think that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; the simple replacement made, all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. a silicone oil torshional vibration damper, the side cover (2) that it comprises housing (1) and matches with described housing (1), the end face of described housing (1) side is provided with annular groove, described side cover (2) covers and forms annular seal space at the opening of this annular groove, on the interior ring-side wall of this annular groove, fixed cover is filled with lining (4), described lining (4) upper sliding sleeve is installed with inertia ring (3), it is characterized in that: the section of described inertia ring (3) is that inner ring place thickness is greater than the trapezoidal of outer ring place thickness.
2. a kind of silicone oil torshional vibration damper according to claim 1, it is characterized in that: when two waists of the trapezoidal cross-section of described inertia ring (3) are oblique waist, its single annular end face at oblique waist place and the minimum axial gap of Seal cage inwall are 0.7 millimeter ~ 0.9 millimeter, the annular end face at its single oblique waist place larger than minimum axial gap 0.1 millimeter ~ 0.4 millimeter with the maximum axial gap of Seal cage inwall.
3. a kind of silicone oil torshional vibration damper according to claim 1, it is characterized in that: when the trapezoidal cross-section of described inertia ring (3) is right-angled trapezium, the annular end face at oblique waist place of this right-angled trapezium and the minimum axial gap of Seal cage inwall are 0.7 millimeter ~ 0.9 millimeter, the annular end face at the oblique waist place of this right-angled trapezium larger than minimum axial gap 0.1 millimeter ~ 0.4 millimeter with the maximum axial gap of Seal cage inwall, the annular end face at straight waist place of this right-angled trapezium and the axial clearance of Seal cage inwall are 0.5 millimeter ~ 0.7 millimeter.
4. a kind of silicone oil torshional vibration damper according to claim 1, is characterized in that: the equal rounding of rib of described inertia ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277684.5U CN204083028U (en) | 2014-05-28 | 2014-05-28 | Silicone oil torsional vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277684.5U CN204083028U (en) | 2014-05-28 | 2014-05-28 | Silicone oil torsional vibration damper |
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| Publication Number | Publication Date |
|---|---|
| CN204083028U true CN204083028U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420277684.5U Expired - Lifetime CN204083028U (en) | 2014-05-28 | 2014-05-28 | Silicone oil torsional vibration damper |
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| Country | Link |
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| CN (1) | CN204083028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019175A (en) * | 2014-05-28 | 2014-09-03 | 东风商用车有限公司 | Silicone oil torsional vibration damper |
-
2014
- 2014-05-28 CN CN201420277684.5U patent/CN204083028U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019175A (en) * | 2014-05-28 | 2014-09-03 | 东风商用车有限公司 | Silicone oil torsional vibration damper |
| CN104019175B (en) * | 2014-05-28 | 2017-01-04 | 东风商用车有限公司 | Silicone oil torsional vibration damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150107 |