CN107676417B - Silicon oil shock absorber - Google Patents
Silicon oil shock absorber Download PDFInfo
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- CN107676417B CN107676417B CN201710919270.6A CN201710919270A CN107676417B CN 107676417 B CN107676417 B CN 107676417B CN 201710919270 A CN201710919270 A CN 201710919270A CN 107676417 B CN107676417 B CN 107676417B
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- 230000035939 shock Effects 0.000 title claims abstract description 47
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 45
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims description 11
- 239000003921 oil Substances 0.000 title claims description 11
- 229910052710 silicon Inorganic materials 0.000 title claims description 11
- 239000010703 silicon Substances 0.000 title claims description 11
- 238000013016 damping Methods 0.000 claims abstract description 170
- 229920002545 silicone oil Polymers 0.000 claims abstract description 57
- 230000003139 buffering effect Effects 0.000 claims description 9
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Pure & Applied Mathematics (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Gears, Cams (AREA)
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Abstract
The silicone oil shock absorber comprises a shell and an inertia ring, wherein the inertia ring is arranged inside the shell; the inertia ring is of an annular structure, the cross section of the inertia ring along the radial direction of the inertia ring is of a rectangular structure, n damping teeth are uniformly distributed on the outer circumference of the inertia ring, and n is an integer greater than or equal to 2; twelve or sixteen damping teeth are uniformly distributed on the outer circumference of the inertia ring; the damping surface is intersected with the outer circumferential surface of the inertia ring, and a tangent plane at the intersection line of the damping surface and the inertia ring is perpendicular to the damping surface. The design is simple in structure and convenient to machine, damping and rigidity of the silicone oil damper are effectively improved, installation space of the silicone oil damper is reduced, and arrangement of other gear trains at the front end of an engine is facilitated.
Description
Technical Field
The invention relates to a silicone oil damper, in particular to a silicone oil damper which is particularly suitable for increasing the rigidity and damping of the silicone oil damper and reducing the volume of the silicone oil damper.
Background
With the development of commercial vehicle markets, the requirements on the power rising and the detonation pressure of the engine are higher and higher, namely, the engine with the same power is smaller in size and has market competitiveness, so that the structural design requirement of the engine is more compact, the arrangement requirement of a front end train of the engine is high, the axial and radial arrangement space of the shock absorber is influenced by the occurrence of a multi-layer train, the power rising requirement of the engine is improved, the rigidity and damping requirements of the shock absorber are increased, if the traditional shock absorber is used, the design requirement is required, the space arrangement is difficult, and meanwhile, the top and side gaps of the shock absorber are small, and the reliability is at risk.
In the existing silicone oil shock absorber, a shock absorber shell is coupled with an inertia ring through the shearing stress of silicone oil, in the traditional shock absorber, the outer sides of the inner wall of the shell and the inertia ring are cylindrical surfaces, wherein the shell is connected with a crankshaft, and the relative movement of the shell and the crankshaft causes the work consumed by the shearing stress of the silicone oil to be finally converted into heat, so that the torsion vibration damping effect is achieved.
The invention patent with publication number CN105156543A and publication date 2015 of 12 months and 16 days discloses a high-rigidity high-damping silicone oil torsional vibration damper, which comprises a shell, an inertia ring and a side cover which are concentrically arranged, wherein the shell comprises an inner shell wall, an outer shell wall and a side shell wall which are concentrically arranged, two sides of the outer shell wall are respectively connected with two sides of the inner shell wall through the side shell wall and the side cover, silicone oil is injected into a gap between the inertia ring and the inner cavity of a sliding sleeve in an inner cavity surrounded by the side cover, the outer shell wall, the side shell wall and the inner shell wall, and a plurality of tooth grooves are arranged between the side cover ring surface, the top ring surface, the side shell ring surface and the inner walls of the side cover, the outer shell wall and the side shell wall to be matched with each other so as to increase the fluid area between two relative moving objects, thereby increasing the rigidity and damping of the silicone oil. Although this invention can increase the damping of silicone oil dampers, it still has the following drawbacks:
1. the shock absorber can be complex in structure with the inertia ring, has a matching relationship with the inertia ring, has high requirement on the dimensional accuracy, and is not beneficial to industrial production.
Disclosure of Invention
The invention aims to solve the problem of difficult production and processing in the prior art and provides a silicone oil damper which is easy to process and suitable for industrial production.
In order to achieve the above object, the technical solution of the present invention is:
the silicone oil shock absorber comprises a shell and an inertia ring, wherein the inertia ring is arranged inside the shell;
the inertia ring is of an annular structure, the cross section of the inertia ring along the radial direction of the inertia ring is of a rectangular structure, n damping teeth are uniformly distributed on the outer circumference of the inertia ring, and n is an integer greater than or equal to 2.
Twelve or sixteen damping teeth are uniformly distributed on the outer circumference of the inertia ring.
The distance from the tooth tip of the damping tooth to the outer circumferential surface of the inertia ring is h, the value range of h is 2-15 mm, damping surfaces and buffer surfaces are formed on two sides of the damping tooth, and the buffer surfaces are tangent to the outer circumferential surface of the inertia ring.
The damping surface is intersected with the outer circumferential surface of the inertia ring, and a tangent plane at the intersection line of the damping surface and the inertia ring is perpendicular to the damping surface.
The calculation formula of the rigidity of the silicone oil damper increased by the damping tooth structure is as follows:
the calculation formula of the damping added by the silicone oil damper through the damping tooth structure is as follows:
wherein: cr=r2-R1;
in the above formula; cr is the clearance distance between the inertia ring of the shock absorber and the outer ring shell of the shell, R2 is the inner circumferential radius of the outer ring shell, R1 is the outer circumferential radius of the inertia ring, R is the outer circumferential radius of the shock absorber shell, L is the thickness of the shock absorber, mu is the viscosity of silicone oil, omega is the relative movement speed of the shock absorber shell and the inertia ring, epsilon 1 The eccentricity of a single damping tooth is h, the distance from the tooth tip of the damping tooth to the outer circumferential surface of the inertia ring is n, the number of the damping teeth on the inertia ring is n, and r1 is the radius of a circle surrounded by the tooth tip of the damping tooth, the tangent point of the buffer surface and the circle center of the inertia ring.
The damping surface is a concave cambered surface.
The damping surface is intersected with the outer circumferential surface of the inertia ring, and the included angle between the tangent plane at the intersection line of the damping surface and the inertia ring and the damping surface is an acute angle.
The shell comprises an outer ring shell, an inner ring shell and side plates which are coaxially arranged, the outer ring shell is connected with the inner ring shell through the side plates, the inner ring shell is in rotary fit with the inertia ring, m shell damping teeth are uniformly distributed on the inner side of the outer ring shell along the circumference, and m is an integer greater than or equal to 2.
The distance from the tooth tip of the shell damping tooth to the inner circumferential surface of the outer ring shell is j, the value range of j is 2-15 mm, the radius of the inner circumference of the outer ring shell is R2, the two sides of the shell damping tooth are provided with a tooth damping surface and a tooth buffering surface, the tooth buffering surface is a tangent plane of the tooth circumferential surface, and the tooth circumferential surface is a circumferential surface taking the circle center of the outer ring shell as the circle center and taking R2-j as the radius;
the tooth damping surface intersects with the inner circumferential surface of the outer ring shell, and a tangential plane at the intersection line of the tooth damping surface 31 and the inner circumferential surface of the outer ring shell 11 is perpendicular to the tooth damping surface.
The calculation formula of the stiffness of the silicone oil damper increased by the shell damping tooth structure is as follows:
the calculation formula of the damping added by the silicone oil damper through the shell damping tooth structure is as follows:
wherein: cr=r2-R1; epsilon 2 ＝r2/R＝R2/2R；
In the above formula; cr is the clearance distance between the inertia ring of the shock absorber and the outer ring shell of the shell, R2 is the inner circumferential radius of the outer ring shell, R1 is the outer circumferential radius of the inertia ring, R is the outer circumferential radius of the shock absorber shell, L is the thickness of the shock absorber, mu is the viscosity of silicone oil, omega is the relative movement speed of the shock absorber shell and the inertia ring, epsilon 2 The eccentricity of a single shell damping tooth is j, the distance from the tooth tip of the shell damping tooth to the inner circumferential surface of the outer ring shell, m is the number of the shell damping teeth on the outer ring shell, and r2 is the radius of a circle surrounded by the tooth tip of the shell damping tooth, the intersection point of the tooth buffer surface and the inner circumferential surface of the outer ring shell and the circle center of the outer ring shell.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the silicon oil shock absorber, the damping teeth are arranged on the inertia ring of the silicon oil shock absorber, so that the rotation resistance of the inertia ring is effectively increased, the damping and the rigidity of the silicon oil shock absorber are improved, and the silicon oil shock absorber is smaller in volume and lighter in weight under the same damping and rigidity requirements. Therefore, the design can effectively improve the damping and rigidity of the silicone oil damper, reduce the installation space of the silicone oil damper, and is beneficial to the arrangement of other gear trains at the front end of the engine.
2. The number of the damping teeth on the inertia ring in the silicone oil damper is 12 or 16, so that the number of the damping teeth is increased as much as possible, and the inertia ring is convenient to machine and mold. Therefore, the damping teeth of the inertia ring are reasonable in number, and actual machining is facilitated.
3. The damping surface of the damping teeth on the inertia ring in the silicon oil damper can be designed into a concave arc shape or an inward concave included angle, so that the design further increases the resistance of the damping teeth on the inertia ring and optimizes the structure of the damping teeth on the inertia ring. Therefore, the damping teeth on the inertia ring have various structural designs, and the damping effect is effectively improved.
4. According to the silicon oil damper, the shell damping teeth are arranged on the shell, so that the damping and rigidity of the silicon oil damper are multiplied, and the mechanical structure of the silicon oil damper is further optimized. Therefore, the design has reasonable structural design, good damping effect and high rigidity of the silicone oil shock absorber.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the inertia ring of fig. 1.
Fig. 3 is a dimensioning of the invention.
Fig. 4 is example 1 of the present invention.
Fig. 5 is example 3 of the present invention.
Fig. 6 is example 4 of the present invention.
Fig. 7 is example 5 of the present invention.
Fig. 8 is a schematic view of the structure of the housing of fig. 7.
In the figure: the shell 1, the outer ring shell 11, the inner ring shell 12, the side plates 13, the inertia ring 2, the damping teeth 21, the damping surface 22, the damping surface 23, the shell damping teeth 3, the tooth damping surface 31 and the tooth damping surface 32.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 8, a silicone oil damper includes a housing 1 and an inertia ring 2, the inertia ring 2 being disposed inside the housing 1;
the inertia ring 2 is of an annular structure, the cross section of the inertia ring 2 along the radial direction of the inertia ring is of a rectangular structure, n damping teeth 21 are uniformly distributed on the outer circumference of the inertia ring 2, and n is an integer greater than or equal to 2.
Twelve or sixteen damping teeth 21 are uniformly distributed on the outer circumference of the inertia ring 2.
The distance from the tooth tip of the damping tooth 21 to the outer circumferential surface of the inertia ring 2 is h, the value range of h is 2-15 mm, a damping surface 22 and a buffer surface 23 are formed on two sides of the damping tooth 21, and the buffer surface 23 is tangent to the outer circumferential surface of the inertia ring 2.
The damping surface 22 is intersected with the outer circumferential surface of the inertia ring 2, and a tangent plane at the intersection line of the damping surface 22 and the inertia ring 2 is perpendicular to the damping surface 22.
The stiffness of the silicone oil damper added by the structure of the damper tooth 21 is calculated as follows:
the damping of the silicone oil damper by the structure of the damper tooth 21 is calculated as follows:
wherein: cr=r2-R1;
in the above formula; cr is the clearance distance between the inertia ring 2 of the shock absorber and the outer ring shell 11 of the shell 1, R2 is the inner circumference radius of the outer ring shell 11, R1 is the outer circumference radius of the inertia ring 2, R is the outer circumference radius of the shock absorber shell, L is the thickness of the shock absorber, mu is the viscosity of silicone oil, omega is the relative movement speed of the shock absorber shell and the inertia ring, epsilon 1 The eccentricity of a single damper tooth 21, h is the tooth tip of the damper tooth 21The distance from the outer circumferential surface of the inertia ring 2 is n, the number of the damping teeth 21 on the inertia ring 2 is n, and r1 is the radius of a circle formed by the tooth tip of the damping teeth 21, the tangent point of the buffer surface 23 and the circle center of the inertia ring 2.
The damping surface 22 is a concave cambered surface.
The damping surface 22 intersects with the outer circumferential surface of the inertia ring 2, and the included angle between the tangent plane at the intersection line of the damping surface 22 and the inertia ring 2 and the damping surface 22 is an acute angle.
The shell 1 comprises an outer ring shell 11, an inner ring shell 12 and a side plate 13 which are coaxially arranged, the outer ring shell 11 is connected with the inner ring shell 12 through the side plate 13, the inner ring shell 12 is in rotary fit with the inertia ring 2, m shell damping teeth 3 are uniformly distributed on the inner side of the outer ring shell 11 along the circumference, and m is an integer greater than or equal to 2.
The distance from the tooth tip of the shell damping tooth 3 to the inner circumferential surface of the outer ring shell 11 is j, the value range of j is 2-15 mm, the radius of the inner circumference of the outer ring shell 11 is R2, the two sides of the shell damping tooth 3 are provided with a tooth damping surface 31 and a tooth buffering surface 32, the tooth buffering surface 32 is a tangent plane of the tooth circumferential surface, and the tooth circumferential surface is a circumferential surface taking the circle center of the outer ring shell 11 as the circle center and taking R2-j as the radius;
the tooth damping surface 31 intersects with the inner circumferential surface of the outer ring shell 11, and a tangential plane at the intersection line of the tooth damping surface 31 and the inner circumferential surface of the outer ring shell 11 is perpendicular to the tooth damping surface 31.
The calculation formula of the stiffness of the silicone oil damper added by the structure of the shell damper tooth 3 is as follows:
the calculation formula of the damping of the silicone oil damper added by the structure of the shell damping tooth 3 is as follows:
wherein: cr=r2-R1; epsilon 2 ＝r2/R＝R2/2R；
In the above formula; cr is the inertia of the shock absorberThe clearance distance between the ring 2 and the outer ring shell 11 of the shell 1, R2 is the inner circumference radius of the outer ring shell 11, R1 is the outer circumference radius of the inertia ring 2, R is the outer circumference radius of the damper shell, L is the thickness of the damper, mu is the viscosity of silicone oil, omega is the relative movement speed of the damper shell and the inertia ring, epsilon 2 For the eccentricity of a single shell damping tooth 3, j is the distance from the tooth tip of the shell damping tooth 3 to the inner circumferential surface of the outer ring shell 11, m is the number of the shell damping teeth 3 on the outer ring shell 11, and r2 is the radius of a circle formed by the intersection point of the tooth tip of the shell damping tooth 3, the tooth buffer surface 32 and the inner circumferential surface of the outer ring shell 11 and the circle center of the outer ring shell 11.
The principle of the invention is explained as follows:
the rotation direction of the engine is clockwise, when the rotation speed of the shell 1 is lower than that of the inertia ring 2, the damping teeth 21 and/or the shell damping teeth 3 inside the silicone oil damper are added, namely the rotation resistance of the damper is increased; when the rotational speed of the housing 1 is higher than the rotational speed of the inertia ring 2, the added damping teeth 21 and/or housing damping teeth 3 inside the silicone oil damper achieve an additional increase in the stiffness and damping of the damper by squeezing the silicone oil with the damping tooth structure without changing the original stiffness and damping of the damper.
The sector arc corresponding to each damping tooth structure is equivalent to that of a sector arc without a damping tooth structure, a certain eccentricity is increased, the rigidity and the damping of the shock absorber are improved, and the rigidity and the damping of the silicone shock absorber can be effectively increased through the superposition effect of a plurality of damping tooth structures.
Example 1:
referring to fig. 1 to 4, a silicone oil damper includes a housing 1 and an inertia ring 2, the inertia ring 2 being disposed inside the housing 1; the inertia ring 2 is of an annular structure, the cross section of the inertia ring 2 along the radial direction of the inertia ring is of a rectangular structure, n damping teeth 21 are uniformly distributed on the outer circumference of the inertia ring 2, and n is an integer greater than or equal to 2; the distance from the tooth tip of the damping tooth 21 to the outer circumferential surface of the inertia ring 2 is h, the value range of h is 2-15 mm, a damping surface 22 and a buffer surface 23 are formed on two sides of the damping tooth 21, and the buffer surface 23 is tangent to the outer circumferential surface of the inertia ring 2; the damping surface 22 is intersected with the outer circumferential surface of the inertia ring 2, and a tangent plane at the intersection line of the damping surface 22 and the inertia ring 2 is perpendicular to the damping surface 22.
The stiffness of the silicone oil damper added by the structure of the damper tooth 21 is calculated as follows:
the damping of the silicone oil damper by the structure of the damper tooth 21 is calculated as follows:
wherein: cr=r2-R1;
in the above formula; cr is the clearance distance between the inertia ring 2 of the shock absorber and the outer ring shell 11 of the shell 1, R2 is the inner circumference radius of the outer ring shell 11, R1 is the outer circumference radius of the inertia ring 2, R is the outer circumference radius of the shock absorber shell, L is the thickness of the shock absorber, mu is the viscosity of silicone oil, omega is the relative movement speed of the shock absorber shell and the inertia ring, epsilon 1 For the eccentricity of a single damping tooth 21, h is the distance from the tooth tip of the damping tooth 21 to the outer circumferential surface of the inertia ring 2, n is the number of damping teeth 21 on the inertia ring 2, and r1 is the radius of a circle surrounded by the tooth tip of the damping tooth 21, the tangent point of the buffer surface 23 and the circle center of the inertia ring 2.
Example 2:
example 2 is substantially the same as example 1 except that:
twelve or sixteen damping teeth 21 are uniformly distributed on the outer circumference of the inertia ring 2.
Example 3:
example 3 is substantially the same as example 2 except that:
referring to fig. 5, the damping surface 22 is a concave cambered surface.
Example 4:
example 4 is substantially the same as example 2 except that:
referring to fig. 6, the damping surface 22 intersects with the outer circumferential surface of the inertia ring 2, and the tangential plane at the intersection line of the damping surface 22 and the inertia ring 2 forms an acute angle with the damping surface 22.
Example 5:
example 5 is substantially the same as example 2 except that:
referring to fig. 7 and 8, the housing 1 includes an outer ring shell 11, an inner ring shell 12 and a side plate 13 coaxially arranged, the outer ring shell 11 is connected with the inner ring shell 12 through the side plate 13, the inner ring shell 12 is rotationally matched with the inertia ring 2, m housing damping teeth 3 are uniformly distributed on the inner side of the outer ring shell 11 along the circumference, and m is an integer greater than or equal to 2.
The distance from the tooth tip of the shell damping tooth 3 to the inner circumferential surface of the outer ring shell 11 is j, the value range of j is 2-15 mm, the radius of the inner circumference of the outer ring shell 11 is R2, the two sides of the shell damping tooth 3 are provided with a tooth damping surface 31 and a tooth buffering surface 32, the tooth buffering surface 32 is a tangent plane of the tooth circumferential surface, and the tooth circumferential surface is a circumferential surface taking the circle center of the outer ring shell 11 as the circle center and taking R2-j as the radius;
the tooth damping surface 31 intersects with the inner circumferential surface of the outer ring shell 11, and a tangential plane at the intersection line of the tooth damping surface 31 and the inner circumferential surface of the outer ring shell 11 is perpendicular to the tooth damping surface 31.
The calculation formula of the stiffness of the silicone oil damper added by the structure of the shell damper tooth 3 is as follows:
the calculation formula of the damping of the silicone oil damper added by the structure of the shell damping tooth 3 is as follows:
wherein: cr=r2-R1; epsilon 2 ＝r2/R＝R2/2R；
In the above formula; cr is the inertia of the shock absorberThe clearance distance between the ring 2 and the outer ring shell 11 of the shell 1, R2 is the inner circumference radius of the outer ring shell 11, R1 is the outer circumference radius of the inertia ring 2, R is the outer circumference radius of the damper shell, L is the thickness of the damper, mu is the viscosity of silicone oil, omega is the relative movement speed of the damper shell and the inertia ring, epsilon 2 For the eccentricity of a single shell damping tooth 3, j is the distance from the tooth tip of the shell damping tooth 3 to the inner circumferential surface of the outer ring shell 11, m is the number of the shell damping teeth 3 on the outer ring shell 11, and r2 is the radius of a circle formed by the intersection point of the tooth tip of the shell damping tooth 3, the tooth buffer surface 32 and the inner circumferential surface of the outer ring shell 11 and the circle center of the outer ring shell 11.
Claims (9)
1. The utility model provides a silicone oil shock absorber, includes casing (1) and inertia ring (2), inertia ring (2) set up in casing (1) inside, its characterized in that:
the inertia ring (2) is of an annular structure, the cross section of the inertia ring (2) along the radius direction of the inertia ring is of a rectangular structure, n damping teeth (21) are uniformly distributed on the outer circumference of the inertia ring (2), and n is an integer greater than or equal to 2;
the distance from the tooth tip of the damping tooth (21) to the outer circumferential surface of the inertia ring (2) is h, a damping surface (22) and a buffer surface (23) are formed on two sides of the damping tooth (21), and the buffer surface (23) is tangential to the outer circumferential surface of the inertia ring (2);
the stiffness of the silicone oil damper increased by the structure of the damper teeth (21) is calculated as follows:
the formula for the damping of the silicone oil damper added by the damping tooth (21) structure is as follows:
wherein: cr=r2-R1;
；
in the above formula; cr is the clearance distance between an inertia ring (2) of the shock absorber and an outer ring shell (11) of a shell (1), R2 is the inner circumference radius of the outer ring shell (11), R1 is the outer circumference radius of the inertia ring (2), R is the outer circumference radius of the shock absorber shell, L is the thickness of the shock absorber, mu is the viscosity of silicone oil, omega is the relative movement speed of the shock absorber shell and the inertia ring,
for the eccentricity of a single damping tooth (21), h is the distance from the tooth tip of the damping tooth (21) to the outer circumferential surface of the inertia ring (2), n is the number of the damping teeth (21) on the inertia ring (2), and r1 is the radius of a circle formed by the tooth tip of the damping tooth (21), the tangent point of the buffer surface (23) and the circle center of the inertia ring (2).
2. A silicone oil damper as set forth in claim 1 wherein:
twelve or sixteen damping teeth (21) are uniformly distributed on the outer circumference of the inertia ring (2).
3. A silicone oil damper according to claim 1 or 2, characterized in that:
the distance h from the tooth tip of the damping tooth (21) to the outer circumferential surface of the inertia ring (2) is 2-15 mm.
4. A silicone oil damper as set forth in claim 1 wherein:
the damping surface (22) is intersected with the outer circumferential surface of the inertia ring (2), and a tangent plane at the intersection line of the damping surface (22) and the inertia ring (2) is perpendicular to the damping surface (22).
5. A silicone oil damper according to claim 3, wherein:
the damping surface (22) is a concave cambered surface.
6. A silicone oil damper as set forth in claim 1 wherein:
the damping surface (22) is intersected with the outer circumferential surface of the inertia ring (2), and an included angle between a tangent plane at the intersection line of the damping surface (22) and the inertia ring (2) and the damping surface (22) is an acute angle.
7. A silicone oil damper according to claim 1 or 2, characterized in that:
the shell (1) comprises an outer ring shell (11), an inner ring shell (12) and a side plate (13) which are coaxially arranged, the outer ring shell (11) is connected with the inner ring shell (12) through the side plate (13), the inner ring shell (12) is in rotary fit with the inertia ring (2), m shell damping teeth (3) are uniformly distributed on the inner side of the outer ring shell (11) along the circumference, and m is an integer greater than or equal to 2.
8. A silicone oil damper as set forth in claim 7 wherein:
the distance from the tooth tip of the shell damping tooth (3) to the inner circumferential surface of the outer ring shell (11) is j, the value range of j is 2-15 mm, the radius of the inner circumference of the outer ring shell (11) is R2, a tooth damping surface (31) and a tooth buffering surface (32) are formed on two sides of the shell damping tooth (3), the tooth buffering surface (32) is a tangent plane of the tooth circumferential surface, and the tooth circumferential surface is a circumferential surface taking the center of the outer ring shell (11) as the center of a circle and taking R2-j as the radius;
the tooth damping surface (31) is intersected with the inner circumferential surface of the outer ring shell (11), and a tangent plane at the intersection line of the tooth damping surface (31) and the inner circumferential surface of the outer ring shell (11) is perpendicular to the tooth damping surface (31).
9. A silicone oil damper as set forth in claim 8 wherein:
the calculation formula of the rigidity of the silicon oil shock absorber increased by the structure of the shell damping tooth (3) is as follows:
the calculation formula of the damping of the silicone oil damper increased by the structure of the shell damping teeth (3) is as follows:
wherein: cr=r2-R1;
；
in the above formula; cr is the clearance distance between an inertia ring (2) of the shock absorber and an outer ring shell (11) of a shell (1), R2 is the inner circumference radius of the outer ring shell (11), R1 is the outer circumference radius of the inertia ring (2), R is the outer circumference radius of the shock absorber shell, L is the thickness of the shock absorber, mu is the viscosity of silicone oil, omega is the relative movement speed of the shock absorber shell and the inertia ring,
for the eccentricity of a single shell damping tooth (3), j is the distance from the tooth tip of the shell damping tooth (3) to the inner circumferential surface of the outer ring shell (11), m is the number of the shell damping teeth (3) on the outer ring shell (11), and r2 is the radius of a circle formed by the intersection point of the tooth tip of the shell damping tooth (3), the tooth buffering surface (32) and the inner circumferential surface of the outer ring shell (11) and the circle center of the outer ring shell (11). />
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919270.6A CN107676417B (en) | 2017-09-30 | 2017-09-30 | Silicon oil shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710919270.6A CN107676417B (en) | 2017-09-30 | 2017-09-30 | Silicon oil shock absorber |
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| CN107676417A CN107676417A (en) | 2018-02-09 |
| CN107676417B true CN107676417B (en) | 2023-05-30 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT340213B (en) * | 1976-01-23 | 1977-12-12 | Geislinger Dr Ing Leonard | ROTARY VIBRATION DAMPER OR VIBRATION DAMPENING AND TORSO-ELASTIC COUPLING |
| JPS60569B2 (en) * | 1980-06-04 | 1985-01-09 | 株式会社日立製作所 | damping bearing |
| CN202001549U (en) * | 2011-03-16 | 2011-10-05 | 天津大学 | Shock absorber of diesel engine |
| US9091316B2 (en) * | 2013-03-13 | 2015-07-28 | Trd U.S.A., Inc. | Dampers for crankshafts of reciprocating engines and reciprocating engines comprising the same |
| CN104696431A (en) * | 2015-02-13 | 2015-06-10 | 柳州金鸿橡塑有限公司 | Rubber torsional shock absorber |
| CN207569134U (en) * | 2017-09-30 | 2018-07-03 | 东风商用车有限公司 | Silicon oil shock absorber |
| CN207500380U (en) * | 2017-09-30 | 2018-06-15 | 东风商用车有限公司 | Silicon oil shock absorber structure |
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