CN204493548U - A kind of three-dimensional unequal rigidity rubber vibration isolator - Google Patents
A kind of three-dimensional unequal rigidity rubber vibration isolator Download PDFInfo
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- CN204493548U CN204493548U CN201420796274.1U CN201420796274U CN204493548U CN 204493548 U CN204493548 U CN 204493548U CN 201420796274 U CN201420796274 U CN 201420796274U CN 204493548 U CN204493548 U CN 204493548U
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Abstract
The utility model belongs to the device of equipment anti-vibration and shock, relates to a kind of three-dimensional unequal rigidity rubber vibration isolator.Described three-dimensional unequal rigidity rubber vibration isolator, comprise internal axle sleeve, ring-shaped rubber body, annulus, frame, packaging ring, some bolts, screw rod, block nut, described internal axle sleeve, ring-shaped rubber body, annulus forms annular rubber assembly jointly, load to frame inner, its top is concordant with frame top, by bolt, packaging ring is fixed on frame top, the screw rod on the flange-type fitting seat top be connected with motor is through internal axle sleeve, top exceeds internal axle sleeve one segment distance, block nut is sleeved on the thread section that screw tip exceeds internal axle sleeve, employing stop pin is fixed.The utility model can be used for the installation that aeroengine, auxiliary power unit etc. need the asymmetric device of multidirectional damping requirements, and it is good to have isolating affection, and the installation reliability of power plant is high, the course rigidity advantages of higher of vibration isolator.
Description
Technical field
The utility model belongs to the device of equipment anti-vibration and shock, relates to a kind of three-dimensional unequal rigidity rubber vibration isolator.
Background technique
Rubber vibration isolator utilizes the superelasticity of rubber element and can produce the performance of moderate finite deformation, for vibration isolator provides stiffness characteristics; Utilize rubber material molecular chain and its expendable distortion dissipate vibrational energy each other, for vibration isolator provides damping characteristic; Metallic member for vibration isolator provide upper and lower port connect and structure support.Multi-point support form is taked in the installation of aeroengine, auxiliary power unit usually, due to the asymmetry that equipment quality distribution and mounting points are arranged, each mounting points place three-way rigidity has bigger difference, be not suitable for the rigidity vibration isolators such as application three-dimensional, and revise motor erection joint to whole Project R&D and need a large amount of designs, assessment and checking work, therefore amendment structure of vibration isolation device is comparatively ideal approach, the These characteristics of installing based on motor and requirement, design the utility model vibration isolator.
Summary of the invention
The purpose of this utility model: provide a kind of three-dimensional unequal rigidity rubber vibration isolator, needs the installation of the asymmetric device of multidirectional damping requirements for aeroengine, auxiliary power unit etc.
The technical solution of the utility model: a kind of three-dimensional unequal rigidity rubber vibration isolator, it comprises internal axle sleeve, ring-shaped rubber body, annulus, frame, packaging ring, some bolts, wherein internal axle sleeve is bonded in ring-shaped rubber body inside, annulus is bonded in the periphery of ring-shaped rubber body, described internal axle sleeve, ring-shaped rubber body, annulus forms annular rubber assembly jointly, load to frame inner, its top is concordant with frame top, described packaging ring along the circumferential direction evenly arranges some circular holes, packaging ring is fixed on frame top through circular hole by described bolt.
Described internal axle sleeve is the I-shaped axle sleeve of the round top cover of two end band, and in the middle of the top cover of two ends, the cross section of uniform section section part is outer ring is oblate, that inner ring is circle ring structure, and in inwall 2/3rds length, place is provided with a round boss.
Described ring-shaped rubber body is high-low temperature resistant high-damping rubber, through the hyperelastic body that High Temperature High Pressure sulfuration is made.
The cross section of described ring-shaped rubber body is inner ring is circle, outer ring is oblate ring structure, inner ring and internal axle sleeve junction point, outer ring and annulus junction point, be provided with the rounding of certain radian, ring-shaped rubber body upper and lower end face is disposed radially the streamlined of larger radian and caves in, and is symmetrically arranged with two V-type arc grooves along oblate shape inner ring minor axis.
Described annulus is a thin walled cylinder.
Described frame is the barrel-shaped structure of a bottom opening, the diameter circular hole equal with its inwall is opened at its top, top outer is along the circumferential direction symmetrically arranged with certain thickness semi-circular cylindrical boss, each boss top center is provided with a bolt hole, and bottom is provided with the manhole that a diameter is 70 ~ 80mm.
The screw rod on the flange-type fitting seat top that motor connects firmly is through the inside of internal axle sleeve, and top exceeds internal axle sleeve, and is sleeved on thread section that screw tip exceeds internal axle sleeve fixing by a block nut.
The beneficial effects of the utility model: the feature that the utility model is large according to aeroengine course load, vertical load is little, oblate profile shaft nested structure is utilized to make ring-type axle sleeve vibration insulation structure have different stiffness coefficients in the both direction that radial direction is perpendicular, make this vibration isolator have three-dimensional unequal rigidity characteristic, improve vibration isolating effect; Inner chamber body and frame adopt the Structural Hardware of internal axle sleeve and outer annular sleeve that rubber body is wrapped in centre, even if after rubber tears or come off, still can reliably be connected, and have ensured the installation reliability of power plant, belong to a kind of effectively safety measure; Ring-shaped rubber body upper and lower surface is all symmetrically arranged with the V-type groove of a pair certain radian along oblate minor axis, add the free area perpendicular to this groove direction rubber body, further increase the ratio of rigidity of the radial perpendicular both direction of this vibration isolator, improve vibration isolator integral rigidity characteristic.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model rip cutting sectional drawing;
Fig. 3 is the utility model bottom view.
Wherein, 1-internal axle sleeve, 2-ring-shaped rubber body, 3-annulus, 4-frame, 5-packaging ring, 6-bolt, 7-dogbolt, 8-screw rod, 9-frame bottom outlet, 10-internal axle sleeve round boss, 11-ring-shaped rubber body V-type groove.
Embodiment
Below by embodiment, the present invention is described in further detail:
Refer to Fig. 1 and Fig. 2, a kind of three-dimensional unequal rigidity of the utility model rubber vibration isolator comprises internal axle sleeve 1, ring-shaped rubber body 2, annulus 3, frame 4, packaging ring 5,5 bolts 6.Wherein internal axle sleeve 1 bonding by Vulcanization is inner at ring-shaped rubber body 2, and annulus 3 bonding by Vulcanization is in the periphery of ring-shaped rubber body 2.Described internal axle sleeve 1, ring-shaped rubber body 2, annulus 3 be the annular rubber assembly of composition jointly, and load to frame 4 inner, its top is concordant with frame 4 top.Described packaging ring 5 evenly arranges 5 circular holes along 90 °, and packaging ring 5 is fixed on frame 4 top through 5 circular holes by 5 bolts 6.During installation, the screw rod on the flange-type fitting seat top connected firmly by motor passes the inside of internal axle sleeve 1, and this screw tip exceeds internal axle sleeve 1 about 25mm, and is sleeved on a block nut thread section that screw tip exceeds internal axle sleeve 1, is fixed by this rubber vibration isolator.
Described internal axle sleeve 1 is the I-shaped axle sleeve of the round top cover of two end band, and in the middle of the top cover of two ends, the cross section of uniform section section part is outer ring is oblate, that inner ring is circle ring structure, and in inwall 2/3rds length, place is provided with a round boss.
Described ring-shaped rubber body 2 is high-low temperature resistant high-damping rubber, through the hyperelastic body that High Temperature High Pressure sulfuration is made.
The cross section of described ring-shaped rubber body 2 is inner ring is circle, outer ring is oblate ring structure, inner ring and internal axle sleeve 1 junction point, outer ring and annulus 3 junction point, be provided with the rounding of certain radian, ring-shaped rubber body 2 upper and lower end face is disposed radially the streamlined of larger radian and caves in, two V-type arc grooves are symmetrically arranged with, to improve structural behaviour along oblate shape inner ring minor axis.Described annulus 3 is a thin walled cylinder.
Described frame 4 is the barrel-shaped structure of a bottom opening, the diameter circular hole equal with its inwall is opened at its top, top outer is along the circumferential direction symmetrically arranged with certain thickness semi-circular cylindrical boss, each boss top center is provided with a bolt hole, and bottom is provided with the manhole that a diameter is 70 ~ 80mm.
The feature that the utility model is large according to aeroengine course load, vertical load is little, oblate profile shaft nested structure is utilized to make ring-type axle sleeve vibration insulation structure have different stiffness coefficients in the both direction that radial direction is perpendicular, make this vibration isolator have three-dimensional unequal rigidity characteristic, improve vibration isolating effect.Inner chamber body and frame adopt the Structural Hardware of internal axle sleeve and outer annular sleeve that rubber body is wrapped in centre, even if after rubber tears or come off, still can reliably be connected, and have ensured the installation reliability of power plant, belong to a kind of effectively safety measure.Ring-shaped rubber body upper and lower surface is all symmetrically arranged with the V-type groove of a pair certain radian along oblate minor axis limit, add the free area perpendicular to this groove direction rubber body, further increase the ratio of rigidity of the radial perpendicular both direction of this vibration isolator, improve vibration isolator integral rigidity characteristic.
Claims (8)
1. a three-dimensional unequal rigidity rubber vibration isolator, for symplex structure up and down, it is characterized in that: comprise internal axle sleeve (1), ring-shaped rubber body (2), annulus (3), frame (4), packaging ring (5), some bolts (6), wherein internal axle sleeve (1) is bonded in ring-shaped rubber body (2) inside, annulus (3) is bonded in the periphery of ring-shaped rubber body (2), described internal axle sleeve (1), ring-shaped rubber body (2), annulus (3) is the annular rubber assembly of composition jointly, load to frame (4) inner, its top is concordant with frame (4) top, (5) along the circumferential direction evenly arrange some circular holes to described packaging ring, packaging ring (5) is fixed on frame (4) top through circular hole by described bolt (6).
2. three-dimensional unequal rigidity rubber vibration isolator according to claim 1, it is characterized in that: described internal axle sleeve (1) is the I-shaped axle sleeve of the round top cover of two end band, in the middle of the top cover of two ends, the cross section of uniform section section part is outer ring is oblate, that inner ring is circle ring structure.
3. three-dimensional unequal rigidity rubber vibration isolator according to claim 2, is characterized in that: described internal axle sleeve (1) inwall 2/3rds length place is provided with a round boss.
4. three-dimensional unequal rigidity rubber vibration isolator according to claim 1, it is characterized in that: the cross section of described ring-shaped rubber body (2) is inner ring is circle, outer ring is oblate ring structure, inner ring and internal axle sleeve (1) junction point, outer ring and annulus (3) junction point, be provided with rounding.
5. three-dimensional unequal rigidity rubber vibration isolator according to claim 4, is characterized in that: described ring-shaped rubber body (2) upper and lower end face has been disposed radially streamlined caving in, and is symmetrically arranged with two V-type arc grooves along oblate shape inner ring minor axis.
6. three-dimensional unequal rigidity rubber vibration isolator according to claim 1, is characterized in that: described annulus (3) is a thin walled cylinder.
7. three-dimensional unequal rigidity rubber vibration isolator according to claim 1, it is characterized in that: described frame (4) is the barrel-shaped structure of a bottom opening, the diameter circular hole equal with its inwall is opened at its top, top outer is along the circumferential direction symmetrically arranged with certain thickness semi-circular cylindrical boss, each boss top center is provided with a bolt hole, and bottom is provided with the manhole that a diameter is 70 ~ 80mm.
8. three-dimensional unequal rigidity rubber vibration isolator according to claim 1, it is characterized in that: during installation, the screw rod on the flange-type fitting seat top that motor connects firmly passes the inside of internal axle sleeve (1), top exceeds internal axle sleeve (1), and is sleeved on thread section that screw tip exceeds internal axle sleeve (1) fixing by a block nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796274.1U CN204493548U (en) | 2014-12-15 | 2014-12-15 | A kind of three-dimensional unequal rigidity rubber vibration isolator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796274.1U CN204493548U (en) | 2014-12-15 | 2014-12-15 | A kind of three-dimensional unequal rigidity rubber vibration isolator |
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| CN204493548U true CN204493548U (en) | 2015-07-22 |
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| CN201420796274.1U Active CN204493548U (en) | 2014-12-15 | 2014-12-15 | A kind of three-dimensional unequal rigidity rubber vibration isolator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895229A (en) * | 2015-12-18 | 2017-06-27 | 中国核动力研究设计院 | A kind of close-coupled vibration isolation position limiting structure for possessing three-dimensional limit function |
| CN110439960A (en) * | 2019-07-19 | 2019-11-12 | 中国船舶重工集团公司第七一九研究所 | A kind of small-sized air bag |
| CN110594330A (en) * | 2019-07-19 | 2019-12-20 | 中国船舶重工集团公司第七一九研究所 | Frequency conversion isolator |
-
2014
- 2014-12-15 CN CN201420796274.1U patent/CN204493548U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895229A (en) * | 2015-12-18 | 2017-06-27 | 中国核动力研究设计院 | A kind of close-coupled vibration isolation position limiting structure for possessing three-dimensional limit function |
| CN110439960A (en) * | 2019-07-19 | 2019-11-12 | 中国船舶重工集团公司第七一九研究所 | A kind of small-sized air bag |
| CN110594330A (en) * | 2019-07-19 | 2019-12-20 | 中国船舶重工集团公司第七一九研究所 | Frequency conversion isolator |
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