CN110026810B - Three-dimensional damping hinge seat for vibration reduction of parallel machine tool - Google Patents
Three-dimensional damping hinge seat for vibration reduction of parallel machine tool Download PDFInfo
- Publication number
- CN110026810B CN110026810B CN201910288180.0A CN201910288180A CN110026810B CN 110026810 B CN110026810 B CN 110026810B CN 201910288180 A CN201910288180 A CN 201910288180A CN 110026810 B CN110026810 B CN 110026810B
- Authority
- CN
- China
- Prior art keywords
- cylinder cover
- damping
- upper cylinder
- lower cylinder
- hinge sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a three-dimensional damping hinge seat for vibration reduction of a parallel machine tool, which comprises an upper cylinder cover, a damping liquid bag, a rigid porous plate, a supporting plate, a lower cylinder cover and a hinge sleeve, wherein the upper cylinder cover is connected with the damping liquid bag through a hinge sleeve; the upper and lower cylinder covers are fixedly connected with the lower end of the hinge sleeve respectively; the damping liquid bag, the rigid porous plate and the supporting plate are sequentially arranged in a cavity between the upper cylinder cover and the lower cylinder cover from inside to outside; the supporting plate is fixedly connected with the upper cylinder cover and the lower cylinder cover; the inner side and the outer side of the rigid porous plate are fixedly connected with the damping liquid bag and the supporting plate respectively; the damping liquid bag is attached to the hinge sleeve; the damping liquid bags are arranged around the hinge sleeve, and adjacent damping liquid bags are connected through a capillary oil conveying pipe; an oil storage cavity is arranged between the rigid porous plate and the upper cylinder cover, and the liquid in the upper oil storage cavity and the liquid in the lower oil storage cavity are communicated through the rigid porous plate; a second sealing ring is arranged between the hinge sleeve and the damping liquid bag; the upper cylinder cover and the lower cylinder cover are symmetrically arranged relative to the hinge sleeve; the upper cylinder cover and the lower cylinder cover are both in a tooth-shaped structure; the number of teeth is 2n, and n is more than or equal to 2; the supporting plate is provided with a plurality of slits corresponding to the teeth. The invention can realize multi-dimensional vibration reduction.
Description
Technical Field
The invention relates to the field of damping vibration attenuation, in particular to a three-dimensional damping hinge seat for vibration attenuation of a parallel machine tool.
Background
The viscous damper is used as an excellent energy-consuming vibration-damping structural member and widely applied to mechanical, vehicle, aerospace and military engineering. The common viscous damper is of a hydraulic oil cylinder type and mainly comprises a piston head, a piston rod, a cylinder body and a sealing piece, wherein the piston head is provided with a plurality of small holes or a proper radial gap is reserved between the piston head and the cylinder body, a damping cavity in the oil cylinder is divided into two damping chambers by the piston head, viscous liquid with higher viscosity is filled in the damping chambers, when the piston moves relative to the oil cylinder, the liquid sealed in the damping chamber on the pressurized side is extruded, the pressure is increased, the viscous liquid flows to the other damping chamber from the gap or the small hole between the piston head and the cylinder body, the pressure difference between the two damping chambers forms acting on the motion resistance of the piston head, and the mechanical energy is converted into heat energy, so that the purpose of absorbing external energy is achieved.
The parallel machine tool is a high-speed precise device, and has vibration characteristics of high frequency, micro amplitude and multi-dimensional vibration during working. The damping of the parallel machine tool bodies is determined by the structure and the material of the parallel machine tool bodies, and the special arrangement of the damper is complex and has poor effect; the electric cylinder is complex in structure and difficult to install the damper, the damper is arranged at the joint of the moving branch chain and the machine tool body of the parallel machine tool, so that the vibration of the moving platform and the moving branch chain of the machine tool can be effectively inhibited, and the design and installation difficulty can be reduced.
Chinese patent CN101956780A discloses a viscous damper, which vulcanizes the elastomers at the two ends of the cylinder body, the cylinder body and the piston rod into a whole, thus improving the initial stiffness of the mechanism, but still failing to meet the stiffness requirement of the parallel machine tool and failing to realize multi-dimensional vibration damping; chinese patent CN104154170A discloses a parallel-structured multidimensional vibration damping platform, which is a vibration damping device formed by connecting a plurality of piston dampers in parallel, can realize multidimensional vibration damping, can adjust both rigidity and damping, and is applied to vibration isolation occasions of important instruments and equipment. But the motion range is large, and the requirements of rigidity and high-frequency micro-amplitude vibration suppression of the parallel machine tool cannot be met.
Disclosure of Invention
The invention aims to provide a three-dimensional damping hinge seat for vibration reduction of a parallel machine tool, which provides damping forces in three directions under the condition of ensuring that the posture of a hinge is not changed, and realizes multi-dimensional vibration reduction.
The technical solution for realizing the purpose of the invention is as follows:
a three-dimensional damping hinge seat for damping vibration of a parallel machine tool comprises an upper cylinder cover, a damping liquid bag, a rigid porous plate, a supporting plate, a lower cylinder cover and a hinge sleeve;
the upper cylinder cover and the lower cylinder cover are fixedly connected with the lower end of the hinge sleeve respectively; the damping liquid bag, the rigid porous plate and the supporting plate are sequentially arranged in a cavity between the upper cylinder cover and the lower cylinder cover from inside to outside; the supporting plate is fixedly connected with the upper cylinder cover and the lower cylinder cover; the outer side of the rigid porous plate is fixedly connected with the supporting plate, and the inner side of the rigid porous plate is fixedly connected with the damping liquid bag; the damping liquid bag is attached to the hinge sleeve; the damping liquid bags are uniformly arranged on the periphery of the hinge sleeve, and two adjacent damping liquid bags are communicated through a capillary oil conveying pipe; oil storage cavities are respectively arranged between the rigid porous plate and the upper cylinder cover and between the rigid porous plate and the lower cylinder cover, and the liquid in the upper oil storage cavity and the liquid in the lower oil storage cavity can be communicated through the rigid porous plate; first sealing rings are arranged among the upper cylinder cover, the lower cylinder cover and the supporting plate; a second sealing ring is arranged between the hinge sleeve and the damping liquid bag; the upper cylinder cover and the lower cylinder cover are symmetrically arranged relative to the hinge sleeve; the upper cylinder cover and the lower cylinder cover are both in a tooth-shaped structure, and the teeth are uniformly arranged; the tooth number of the tooth-shaped structure is 2n, and n is more than or equal to 2; the supporting plate is provided with a plurality of slits, and the slits are positioned at the positions corresponding to the teeth.
Compared with the prior art, the invention has the following remarkable advantages:
(1) through designing the flexible structure, the structure can generate elastic deformation, and can generate larger three-dimensional damping force in the horizontal direction and the vertical direction under the condition of small amplitude, thereby realizing three-dimensional vibration reduction.
(2) The parallel constraint structure is adopted, so that the attitude of the mounted hinge can be effectively maintained, and the mounted hinge is in translation when the mounted hinge vibrates under the load in any direction.
(3) The structure has higher motion rigidity, and the rigidity can be adjusted according to the requirement by changing the size of the structure.
Drawings
FIG. 1 is a schematic perspective view of a three-dimensional damping hinge mount for vibration reduction of a machine tool according to the present invention.
FIG. 2 is a sectional view of the three-dimensional damping hinge base structure for machine tool vibration damping according to the present invention.
FIG. 3 is an enlarged view of the flexible hinge structure of the present invention.
Fig. 4 is an enlarged view of the sealing device of the present invention.
Fig. 5 is a sectional view of the structure of the cylinder head of the present invention.
Fig. 6 is a schematic perspective view of the rigid porous plate of the present invention.
FIG. 7 is a schematic view of the lateral damping fluid bag according to the present invention.
FIG. 8 is a partial cross-sectional view of the lateral damping fluid bladder of the present invention.
FIG. 9 is a cross-sectional view of the lateral damping fluid bladder of the present invention.
FIG. 10 is an equivalent diagram of vertical vibration damping according to the present invention.
FIG. 11 is an equivalent diagram of horizontal vibration damping according to the present invention.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
With reference to fig. 1 to 11, the three-dimensional damping hinge seat for damping vibration of a parallel machine tool of the invention comprises an upper cylinder cover 2, a damping liquid bag 3, a rigid porous plate 4-1, a support plate 4-2, a lower cylinder cover 5 and a hinge sleeve 6; the upper cylinder cover 2 and the lower cylinder cover 5 are fixedly connected with the upper end and the lower end of the hinge sleeve 6 respectively; the damping liquid bag 3, the rigid porous plate 4-1 and the support plate 4-2 are sequentially arranged in a cavity between the upper cylinder cover 2 and the lower cylinder cover 5 from inside to outside; the supporting plate 4-2 is fixedly connected with the upper cylinder cover 2 and the lower cylinder cover 5; the outer side of the rigid porous plate 4-1 is fixedly connected with the support plate 4-2, and the inner side of the rigid porous plate is fixedly connected with the damping liquid bag 3; the damping liquid bag 3 is attached to the hinge sleeve 6 and forms tight fit with the hinge sleeve 6 after being pressed. The damping liquid bags 3 are uniformly arranged around the hinge sleeve 6, and two adjacent damping liquid bags 3 are communicated through a capillary oil conveying pipe; an oil storage cavity is respectively arranged between the rigid porous plate 4-1 and the upper cylinder cover 2 and between the rigid porous plate and the lower cylinder cover 5, and the liquid in the upper oil storage cavity and the liquid in the lower oil storage cavity can be communicated through the rigid porous plate 4-1; first sealing rings 4-3 are arranged among the upper cylinder cover 2, the lower cylinder cover 5 and the supporting plate 4-2 to prevent liquid in the oil storage cavity from overflowing; a second sealing ring 6-1 is arranged between the hinge sleeve 6 and the damping liquid bag 3 to prevent liquid channeling of the upper and lower oil storage cavities; the upper cylinder cover 2 and the lower cylinder cover 5 are both in a tooth-shaped structure, and the teeth are uniformly arranged; the upper cylinder cover 2 and the lower cylinder cover 5 are symmetrically arranged relative to the hinge sleeve 6; the tooth number of the tooth-shaped structure is 2n, and n is more than or equal to 2; the upper cylinder cover 2 and the lower cylinder cover 5 are at least provided with two pairs of teeth along the radial direction, and the upper cylinder cover 2 and the lower cylinder cover 5 are easy to generate elastic deformation in the direction vertical to the teeth; as shown in fig. 1, there are a pair of teeth in the X-axis direction, and the upper and lower cylinder heads 2 and 5 are easily elastically deformed in the direction perpendicular to the teeth, i.e., the Y-axis direction. A plurality of slits 4-4 are arranged on the supporting plate 4-2, and the slits 4-4 are positioned at the positions corresponding to the teeth; the slots 4-4 serve to reduce the rigidity of the support plate 4-2 in the radial direction so that the upper cylinder head 2, the lower cylinder head 5 and the hinge housing 6 together are translatable in the radial direction relative to the support plate 4-2.
Furthermore, the upper end surface and the lower end surface of the upper cylinder cover 2 are respectively provided with a circle of annular grooves 2-1 for reducing the rigidity of the upper cylinder cover 2 in the thickness direction, so that the upper cylinder cover 2 is easier to generate elastic deformation along the thickness direction.
Furthermore, the upper end face and the lower end face of the lower cylinder cover 5 are also provided with a circle of annular grooves 2-1 for reducing the rigidity of the lower cylinder cover 5 in the thickness direction, so that the lower cylinder cover 5 is easier to generate elastic deformation along the thickness direction.
Preferably, the annular groove 2-1 corresponds to the outer edge of the rigid perforated plate 4-1.
With reference to fig. 5, further, the upper and lower end faces of the center line of each tooth of the upper cylinder cover 2 are provided with a transverse groove 2-2; and the grooves 2-2 on the upper and lower end surfaces are arranged in a staggered manner; the groove 2-2 divides each tooth into two parts, so that the center line position of each tooth is low in rigidity and can generate dislocation; with reference to fig. 11, when the micro-deformation occurs due to the force in the direction opposite to the vertical teeth, the teeth are equivalent to a parallelogram mechanism, so that the upper cover plate and the lower cover plate can be horizontally translated.
In one embodiment, the upper cylinder cover 2, the lower cylinder cover 5 and the support plate 4-2 are connected through bolts 7, and the bolts connect the positions of the tooth structures of the upper cylinder cover 2 and the lower cylinder cover 5.
Preferably, a plurality of groups of connecting holes are formed in the supporting plate 4-2, each group of connecting holes comprises two through holes 4-5, and each through hole is provided with a bolt 7; the structure is equivalent to the mechanism shown in fig. 10, and the upper and lower cylinder covers fixedly connected with the hinge sleeve 6 form parallelogram constraint, so that the hinge sleeve 6 can ensure translation and can make slight movement in the direction of the Z axis.
As an embodiment, an oil delivery port joint 1 is arranged on the upper cylinder cover 2 to fill the oil storage cavity with oil.
In some embodiments, the upper cylinder cover 2 is fixedly connected with the hinge sleeve 6 by welding; the lower cylinder cover 5 is fixedly connected with the hinge sleeve 6 through a screw 5-1; and a sealing copper ring 6-2 is adopted for sealing between the lower cylinder cover 5 and the hinge sleeve 6, so that the viscous liquid in the lower end oil storage cavity is prevented from leaking.
As an implementation mode, the upper cylinder cover and the lower cylinder cover are designed into a symmetrical six-tooth structure, two opposite teeth form a tooth pair, a transverse strip series of pits 2-2 are formed along the center line of each tooth, when the teeth are subjected to slight deformation caused by a force vertical to the tooth pair direction, the teeth are equal to a parallelogram mechanism, the rigidity of the upper cylinder cover 2 and the lower cylinder cover 5 in the direction vertical to the tooth pair is lower, and the rigidity of the upper cylinder cover and the lower cylinder cover in the direction along the tooth pair is higher, as shown in fig. 1, when the hinge sleeve 6 is subjected to a force in the Y direction, the rigidity of two teeth in the X direction is lower, and the two teeth are equal to two parallelogram mechanisms and can generate elastic deformation in the X direction; the symmetrical six-tooth structure enables the upper cylinder cover 2 and the lower cylinder cover 5 to be elastically deformed in any direction in a horizontal plane.
When the three-dimensional damping hinge base is used, the three-dimensional damping hinge base for damping vibration of the parallel machine tool is connected with the fixed platform through the counter bores 4-5, and the hinge sleeve 6 is connected with a hinge at the tail end of a moving branch chain of the parallel machine tool; the upper end face and the lower end face of the upper cylinder cover 2 and the lower cylinder cover 5 are both provided with a circle of annular grooves 2-1, so that the rigidity of the upper cylinder cover 2 in the thickness direction is reduced, and the upper cylinder cover 2 and the lower cylinder cover 5 are easier to generate elastic deformation along the thickness direction; oil storage cavities are respectively arranged between the rigid porous plate 4-1 and the upper cylinder cover 2 and between the rigid porous plate and the lower cylinder cover 5, and the liquid in the upper oil storage cavity and the liquid in the lower oil storage cavity can be communicated through the rigid porous plate 4-1; viscous liquid is injected into the oil storage cavity through the oil delivery port connector 1; when the hinge sleeve 6 bears the vibration along the Z-axis direction transmitted by the motion branch chain of the parallel machine tool, the hinge sleeve 6 drives the upper cylinder cover 2 and the lower cylinder cover 5 to do small-amplitude motion along the Z-axis, the volumes of the upper oil storage cavity and the lower oil storage cavity are changed, and viscous liquid is pressed to flow through the rigid porous plate 4-1, so that the force for blocking the liquid flow, namely viscous damping force, is generated, and the vibration along the Z-axis direction is suppressed; the damping liquid bag 3, the rigid porous plate 4-1 and the support plate 4-2 are sequentially arranged in a cavity between the upper cylinder cover 2 and the lower cylinder cover 5 from inside to outside; the supporting plate 4-2 is fixedly connected with the upper cylinder cover 2 and the lower cylinder cover 5; the outer side of the rigid porous plate 4-1 is fixedly connected with the support plate 4-2, and the inner side is fixedly connected with the damping liquid bag 3; the damping liquid bag 3 is attached to the hinge sleeve 6, and the damping liquid bag 3 is pressed and filled with viscous liquid to form tight fit with the hinge sleeve 6; when the hinge sleeve 6 bears the vibration in the horizontal direction transmitted by the motion branch chains of the parallel machine tool, the hinge sleeve 6 can do small-amplitude motion in all directions on the horizontal plane to extrude the damping liquid bag 3 to generate elastic deformation, and the viscous liquid in the liquid bag with the reduced volume is pressed to flow to the adjacent liquid bag through the capillary oil conveying pipe, so that viscous damping force is generated, and the two-dimensional vibration in the horizontal direction can be inhibited.
Claims (9)
1. A three-dimensional damping hinge seat for vibration reduction of a parallel machine tool is characterized by comprising an upper cylinder cover (2), a damping liquid bag (3), a rigid porous plate (4-1), a supporting plate (4-2), a lower cylinder cover (5) and a hinge sleeve (6);
the upper cylinder cover (2) and the lower cylinder cover (5) are fixedly connected with the upper end and the lower end of the hinge sleeve (6) respectively; the damping liquid bag (3), the rigid porous plate (4-1) and the support plate (4-2) are sequentially arranged in a cavity between the upper cylinder cover (2) and the lower cylinder cover (5) from inside to outside; the supporting plate (4-2) is fixedly connected with the upper cylinder cover (2) and the lower cylinder cover (5); the outer side of the rigid porous plate (4-1) is fixedly connected with the supporting plate (4-2), and the inner side of the rigid porous plate is fixedly connected with the damping liquid bag (3); the damping liquid bag (3) is attached to the hinge sleeve (6); the damping liquid bags (3) are uniformly arranged on the hinge sleeve (6) in a circle, and two adjacent damping liquid bags (3) are communicated through a capillary oil conveying pipe; oil storage cavities are respectively arranged between the rigid porous plate (4-1) and the upper cylinder cover (2) and between the rigid porous plate and the lower cylinder cover (5), and the liquid in the upper oil storage cavity and the liquid in the lower oil storage cavity can be communicated through the rigid porous plate (4-1); first sealing rings (4-3) are arranged among the upper cylinder cover (2), the lower cylinder cover (5) and the supporting plate (4-2); a second sealing ring (6-1) is arranged between the hinge sleeve (6) and the damping liquid bag (3); the upper cylinder cover (2) and the lower cylinder cover (5) are symmetrically arranged relative to the hinge sleeve (6); the upper cylinder cover (2) and the lower cylinder cover (5) are both in a tooth-shaped structure, and the teeth are uniformly arranged; the tooth number of the tooth-shaped structure is 2n, and n is more than or equal to 2; the supporting plate (4-2) is provided with a plurality of slits (4-4), and the slits (4-4) are positioned at the positions corresponding to the teeth.
2. The three-dimensional damping hinge seat for the vibration reduction of the parallel machine tool is characterized in that the upper end surface and the lower end surface of the upper cylinder cover (2) are provided with a ring of annular grooves (2-1).
3. The three-dimensional damping hinge seat for the vibration reduction of the parallel machine tool is characterized in that the upper end surface and the lower end surface of the lower cylinder cover (5) are provided with a ring of annular grooves (2-1).
4. Three-dimensional damping hinge mount for vibration damping of parallel machine tools according to claim 2 or 3, characterized in that the annular groove (2-1) corresponds to the outer edge of the rigid perforated plate (4-1).
5. The three-dimensional damping hinge seat for the vibration reduction of the parallel machine tool is characterized in that the upper end surface and the lower end surface of the central line of each tooth of the upper cylinder cover (2) are provided with transverse grooves (2-2); and the transverse grooves on the upper end surface and the lower end surface are arranged in a staggered manner.
6. The three-dimensional damping hinge base for the vibration reduction of the parallel machine tool is characterized in that the upper cylinder cover (2), the lower cylinder cover (5) and the support plate (4-2) are connected through bolts (7) which are connected with the tooth-shaped structures of the upper cylinder cover (2) and the lower cylinder cover (5).
7. The three-dimensional damping hinge base for the vibration reduction of the parallel machine tool is characterized in that a plurality of groups of connecting holes are arranged on the supporting plate (4-2), each group of connecting holes comprises two through holes (4-5), and each through hole is provided with a bolt (7).
8. The three-dimensional damping hinge base for the vibration reduction of the parallel machine tool is characterized in that an oil delivery port joint (1) is arranged on the upper cylinder cover (2).
9. The three-dimensional damping hinge seat for the vibration reduction of the parallel machine tool is characterized in that the upper cylinder cover (2) is fixedly connected with the hinge sleeve (6) in a welding mode; the lower cylinder cover (5) is fixedly connected with the hinge sleeve (6) through a screw (5-1); the lower cylinder cover (5) and the hinge sleeve (6) are sealed by a sealing copper ring (6-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288180.0A CN110026810B (en) | 2019-04-11 | 2019-04-11 | Three-dimensional damping hinge seat for vibration reduction of parallel machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288180.0A CN110026810B (en) | 2019-04-11 | 2019-04-11 | Three-dimensional damping hinge seat for vibration reduction of parallel machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110026810A CN110026810A (en) | 2019-07-19 |
| CN110026810B true CN110026810B (en) | 2021-04-27 |
Family
ID=67238049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910288180.0A Active CN110026810B (en) | 2019-04-11 | 2019-04-11 | Three-dimensional damping hinge seat for vibration reduction of parallel machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110026810B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236704B (en) * | 2021-05-27 | 2022-09-27 | 株洲时代瑞唯减振装备有限公司 | Hydraulic damping vibration attenuation device integrally arranged with rubber pile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598352A (en) * | 2004-07-27 | 2005-03-23 | 天津大学 | Three-dimensional vibrating composite damper of engine axis for vehicle |
| CN101338807A (en) * | 2007-07-06 | 2009-01-07 | F.波尔希名誉工学博士公司 | Hydraulic damping bearing |
| CN103775486A (en) * | 2014-01-22 | 2014-05-07 | 武汉第二船舶设计研究所 | Axial-radial damping type rotary joint |
| CN104191927A (en) * | 2014-09-12 | 2014-12-10 | 东风小康汽车有限公司重庆分公司 | Axial variable-damping hydraulic bushing for automotive suspension |
| CN104315076A (en) * | 2014-09-12 | 2015-01-28 | 东风小康汽车有限公司重庆分公司 | Self-adapting variable-damping hydraulic pressure rubber vibration isolation device for automobile suspension |
| CN205021830U (en) * | 2015-07-10 | 2016-02-10 | 开县伟朋科技服务中心 | Breakage -proof drilling equipment |
-
2019
- 2019-04-11 CN CN201910288180.0A patent/CN110026810B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598352A (en) * | 2004-07-27 | 2005-03-23 | 天津大学 | Three-dimensional vibrating composite damper of engine axis for vehicle |
| CN101338807A (en) * | 2007-07-06 | 2009-01-07 | F.波尔希名誉工学博士公司 | Hydraulic damping bearing |
| DE102007031606A1 (en) * | 2007-07-06 | 2009-01-08 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Hydraulic back up bearing for motor vehicle, has chambers axially separated from each other between inner and outer sleeves, and support body including channels provided with draft between axial ends of channels |
| CN103775486A (en) * | 2014-01-22 | 2014-05-07 | 武汉第二船舶设计研究所 | Axial-radial damping type rotary joint |
| CN104191927A (en) * | 2014-09-12 | 2014-12-10 | 东风小康汽车有限公司重庆分公司 | Axial variable-damping hydraulic bushing for automotive suspension |
| CN104315076A (en) * | 2014-09-12 | 2015-01-28 | 东风小康汽车有限公司重庆分公司 | Self-adapting variable-damping hydraulic pressure rubber vibration isolation device for automobile suspension |
| CN205021830U (en) * | 2015-07-10 | 2016-02-10 | 开县伟朋科技服务中心 | Breakage -proof drilling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110026810A (en) | 2019-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100425860C (en) | Damper | |
| CN110026810B (en) | Three-dimensional damping hinge seat for vibration reduction of parallel machine tool | |
| CN108265847B (en) | Piston type particle damper | |
| CN104105902A (en) | Sealed fluid vibration prevention device | |
| US3231255A (en) | Friction devices including shock absorbing dampers and the like | |
| CN108749550B (en) | Hydraulic suspension structure | |
| CN111089117B (en) | Flexible vibration damping bearing bush | |
| CN101173703A (en) | Damper | |
| CN210176267U (en) | Multi-degree-of-freedom hydraulic marine elevator shaft damping vibration damper | |
| CN112178110B (en) | Liquid elastic vibration isolator capable of achieving assembly type frequency modulation | |
| CN210371428U (en) | High-sealing quick multi-cavity hydraulic oil cylinder | |
| CN211571370U (en) | Speed locking device | |
| CN203670584U (en) | Hydraulic damper with non-metallic compensator | |
| CN209587021U (en) | Vibration isolation buffering device | |
| JP6207280B2 (en) | Fluid filled vibration isolator | |
| RU2503862C2 (en) | Hydraulic vibration support | |
| CN101245820B (en) | Damper | |
| CN101165362A (en) | Damper possessing axial guiding means | |
| CN113153955B (en) | High-damping fluid damper | |
| CN211924798U (en) | Floating piston assembly and shock absorber | |
| JP7113890B2 (en) | Hydroelastic device with locking system | |
| JPH03189439A (en) | Fluid damping type strut | |
| CN220726964U (en) | Combined piston special for damping motorcycle | |
| CN114791027B (en) | Built-in hydraulic valve type damper with adjustable damping gap | |
| CN218816683U (en) | Wear-resistant cylinder gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |