CN113236701A - Spiral damping channel viscous fluid damper - Google Patents
Spiral damping channel viscous fluid damper Download PDFInfo
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- CN113236701A CN113236701A CN202110742561.9A CN202110742561A CN113236701A CN 113236701 A CN113236701 A CN 113236701A CN 202110742561 A CN202110742561 A CN 202110742561A CN 113236701 A CN113236701 A CN 113236701A
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- viscous fluid
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- 238000013016 damping Methods 0.000 title claims abstract description 109
- 239000012530 fluid Substances 0.000 title claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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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
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/20—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with the piston-rod extending through both ends of the cylinder, e.g. constant-volume dampers
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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
- F16F9/3214—Constructional features of pistons
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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
- F16F9/3228—Constructional features of connections between pistons and piston rods
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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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/3405—Throttling passages in or on piston body, e.g. slots
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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
- F16F2232/00—Nature of movement
- F16F2232/08—Linear
Abstract
The invention discloses a spiral damping channel viscous fluid damper, comprising: a piston rod; the cylinder barrel is sleeved on the piston rod, two ends of the cylinder barrel are hermetically connected with the outer periphery of the piston rod, an accommodating cavity is formed between the cylinder barrel and the piston rod, and viscous fluid is filled in the accommodating cavity; the piston, on the piston rod was located to the piston cover, the outer peripheral face of piston pasted mutually with the inner wall of cylinder to will hold the chamber and divide into first cavity and second cavity, the piston has even number spiral damping runner, and the axis of spiral damping runner is parallel with the axis of piston rod, and the first cavity of one end intercommunication of spiral damping runner, the other end intercommunication second cavity of spiral damping runner, the axis evenly distributed about the piston rod of even number spiral damping runner. The invention reduces the length of the damper without reducing the damping performance, thereby improving the application range of the damper.
Description
Technical Field
The invention belongs to the technical field of dampers, and particularly relates to a spiral damping channel viscous fluid damper.
Background
In a common viscous fluid damper, a cylinder is divided into two closed chambers by a piston, damping medium is filled in the chambers, and when the piston moves along the axial direction of the cylinder, pressure difference is generated between the two chambers. The piston is provided with a certain number of round elongated holes to form a straight hole type damping channel. When the two cavities have different pressures, the damping medium flows from the high-pressure cavity to the low-pressure cavity along the straight hole type damping channel, and a damping force is generated in the process. Different damping parameters are generally obtained by adjusting the aperture and length of the straight orifice damping channel.
The parameters of the damping channel determine the energy consumption capability, and the longer the damping channel is, the lower the damping index is, so that the energy consumption capability of the damper is improved, and therefore, a low damping index is generally pursued in practical engineering application.
In the design of the traditional damper, in order to pursue higher energy consumption capability, a longer straight hole type damping channel is often adopted, although a lower damping index can be obtained, the length of the damping channel is too long, the thickness of the whole piston is increased, the whole length of the whole damper is lengthened, the applicability of the damper of the type in practical application is not high, and the requirement of a smaller installation space cannot be particularly met.
The scheme that the spiral damping channel is arranged on the outer surface of the piston is adopted to reduce the volume in the prior art, however, the viscous fluid flows in the spiral damping channel in a single direction, acting force can be applied to the circumferential direction of the piston rod, the piston rod further generates torque, on one hand, the service life of the damper is reduced, and on the other hand, influence and damage can be caused to the service environment of the damper.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention provides the spiral damping channel viscous fluid damper which has the advantages of reducing the length of the damper and avoiding the damper from generating torque on a connector on the premise of not reducing the damping performance.
The spiral damping channel viscous fluid damper according to the embodiment of the invention comprises: a piston rod; the cylinder barrel is sleeved on the piston rod, two ends of the cylinder barrel are hermetically connected with the outer periphery of the piston rod, an accommodating cavity is formed between the cylinder barrel and the piston rod, and viscous fluid is filled in the accommodating cavity; the piston is sleeved on the piston rod, the outer peripheral surface of the piston is attached to the inner wall of the cylinder barrel so as to divide the accommodating cavity into a first cavity and a second cavity, the piston is provided with an even number of spiral damping flow channels, the axes of the spiral damping flow channels are parallel to the axis of the piston rod, one ends of the spiral damping flow channels are communicated with the first cavity, the other ends of the spiral damping flow channels are communicated with the second cavity, and the even number of spiral damping flow channels are uniformly distributed relative to the axis of the piston rod.
According to one embodiment of the invention, the spiral damping channels on the piston are of opposite directions on the same diameter.
According to one embodiment of the invention, an even number of through holes penetrating along the axial direction are formed in the piston, a damping shaft is arranged in each through hole, the outer peripheral surface of each damping shaft is attached to the corresponding through hole, a spiral flow passage is formed in the outer peripheral surface of each damping shaft, and each spiral flow passage is communicated with the first cavity and the second cavity.
According to one embodiment of the invention, the piston rod is provided with two annular grooves, the annular grooves are internally provided with limit keys, the piston is positioned between the two annular grooves, and the end part of the piston is abutted against the limit keys.
According to one embodiment of the invention, the limit key is formed by splicing two symmetrically arranged semi-annular parts.
According to an embodiment of the present invention, further comprising: the first pressing plate is arranged on one side of the piston, the first pressing plate is connected with the piston through a screw, and the first pressing plate abuts against one limiting key; the second pressing plate is arranged on the other side of the piston, the second pressing plate is connected with the piston through a screw, and the second pressing plate abuts against the other limiting key.
According to one embodiment of the present invention, one end of the damping shaft is connected to the first pressing plate, and the other end of the damping shaft is connected to the second pressing plate.
According to one embodiment of the invention, the damping shaft comprises: the shaft body is cylindrical, and a spiral flow channel is formed in the outer peripheral surface of the shaft body; two stiff ends, two the stiff end is located respectively the both ends of axis body, one the stiff end plug-in connection to in the first clamp plate, another the stiff end plug-in connection to in the second clamp plate.
According to one embodiment of the present invention, the cross-sectional shape of the fixing end is a square.
According to an embodiment of the present invention, two ends of the damping shaft are axially opened with first communicating holes, two ends of the damping shaft are radially opened with second communicating holes, one end of the first communicating hole is communicated with the accommodating chamber, the other end of the first communicating hole is communicated with one end of the second communicating hole, and the other end of the second communicating hole is communicated with the spiral flow channel.
The piston has the beneficial effects that the spiral damping flow channel is formed in the piston, so that the length of the damper is reduced while the damping performance is not reduced, and the application range of the damper is further improved; the spiral damping flow channels are uniformly distributed in even number, so that the circumferential acting force generated by the viscous fluid in the spiral damping flow channels on the piston rod can be offset, and the damper and objects connected with the damper are prevented from being adversely affected.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic cross-sectional view of a spiral damping channel viscous fluid damper according to the present invention;
FIG. 2 is a schematic perspective view of a damping shaft in the spiral damping channel viscous fluid damper according to the present invention;
FIG. 3 is a schematic cross-sectional view of a damping shaft in a spiral damping channel viscous fluid damper according to the present invention;
reference numerals:
the cylinder barrel 1, the piston rod 2, the piston 3, the first pressure plate 4, the second pressure plate 5, the limit key 6, the damping shaft 7, the viscous fluid 8, the shaft body 71, the fixed end 72, the first communicating hole 73, the spiral flow channel 74 and the second communicating hole 75.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The spiral damping passage viscous fluid damper of the embodiment of the present invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a spiral damping channel viscous fluid damper according to an embodiment of the present invention includes: the cylinder barrel 1 is sleeved on the piston rod 2, two ends of the cylinder barrel 1 are hermetically connected with the outer periphery of the piston rod 2, an accommodating cavity is formed between the cylinder barrel 1 and the piston rod 2, and viscous fluid 8 is filled in the accommodating cavity; the piston 3 is sleeved on the piston rod 2, the peripheral surface of the piston 3 is attached to the inner wall of the cylinder barrel 1, the accommodating cavity is divided into a first cavity and a second cavity, the piston 3 is provided with an even number of spiral damping flow channels, the axes of the spiral damping flow channels are parallel to the axis of the piston rod 2, one ends of the spiral damping flow channels are communicated with the first cavity, the other ends of the spiral damping flow channels are communicated with the second cavity, and the even number of spiral damping flow channels are uniformly distributed relative to the axis of the piston rod 2.
According to the invention, the spiral damping flow channel is formed on the piston 3, so that the length of the damper is reduced while the damping performance is not reduced, and the application range of the damper is further improved; the spiral damping flow channels are uniformly distributed in even number, so that the circumferential acting force generated by the piston rod 2 when the viscous fluid 8 flows in the spiral damping flow channels is counteracted, and the damper and objects connected with the damper are prevented from being adversely affected.
Further, the rotating directions of the two spiral damping flow channels on the same diameter on the piston 3 are opposite; further, the even number of spiral damping channels have the same pitch. The turning directions of the two spiral damping flow passages on the same diameter are set to be opposite, so that acting forces in the radial direction can be mutually offset, the thread pitches are set to be the same, the flow velocity of the viscous fluid 8 in the axial direction can be ensured to be the same, and the damping effect is uniform.
As shown in fig. 1, the piston 3 is provided with an even number of through holes penetrating in the axial direction, the through holes are internally provided with the damping shaft 7, the outer peripheral surface of the damping shaft 7 is attached to the through holes, the outer peripheral surface of the damping shaft 7 is provided with a spiral flow passage 74, and the spiral flow passage 74 communicates the first chamber and the second chamber.
According to one embodiment of the invention, the piston rod 2 is provided with two annular grooves, the annular grooves are internally provided with limit keys 6, the piston 3 is positioned between the two annular grooves, and the end part of the piston 3 is abutted against the limit keys 6.
Furthermore, the limiting key 6 is in a circular ring shape, and the limiting key 6 is formed by splicing two semi-ring-shaped parts which are symmetrically arranged. The design is convenient for installing the limit key 6 in the annular groove.
Further, the helical damping channel viscous fluid damper further comprises: the first pressing plate 4 is arranged on one side of the piston 3, the first pressing plate 4 is connected with the piston 3 through a screw, and the first pressing plate 4 abuts against a limiting key 6; the second pressing plate 5 is arranged on the other side of the piston 3, the second pressing plate 5 is connected with the piston 3 through a screw, and the second pressing plate 5 abuts against the other limiting key 6. Utilize first clamp plate 4 and second clamp plate 5 will be fixed between piston 3 and the spacing key 6, guaranteed that piston 3 keeps fixed in the axial for piston rod 2, fixed knot constructs simply, convenient to detach maintains.
According to one embodiment of the present invention, one end of the damping shaft 7 is connected to the first presser plate 4, and the other end of the damping shaft 7 is connected to the second presser plate 5. The damping shaft 7 is convenient to disassemble and assemble, and the damping shaft 7 is fixed.
As shown in fig. 2 and 3, the damping shaft 7 includes: the shaft body 71 is cylindrical, and a spiral flow passage 74 is formed in the outer peripheral surface of the shaft body 71; two fixed ends 72, two fixed ends 72 are respectively arranged at two ends of the shaft body 71, one fixed end 72 is inserted into the first pressure plate 4, and the other fixed end 72 is inserted into the second pressure plate 5. Preferably, the cross-sectional shape of the fixed end 72 is square. The square shape can avoid the damping shaft 7 rotating relative to the piston 3, ensure the stable state of the spiral damping flow channel and balance the damping effect.
More preferably, both ends of the damping shaft 7 are axially opened with first communicating holes 73, both ends of the damping shaft 7 are radially opened with second communicating holes 75, one end of the first communicating hole 73 is communicated with the accommodating chamber, the other end of the first communicating hole 73 is communicated with one end of the second communicating hole 75, and the other end of the second communicating hole 75 is communicated with the spiral flow passage 74.
The damper is simple in structure and convenient to disassemble and assemble, the spiral damping flow channels are arranged, the flowing length of the viscous fluid 8 is prolonged in a limited space, the damping performance is improved, the spiral damping flow channels are uniformly arranged, and proper rotation direction and screw pitch are set, so that acting force of the viscous fluid 8 on the piston rod 2 can be mutually offset, and the service life and the using effect of the damper are improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A spiral damping channel viscous fluid damper comprising:
a piston rod (2);
the cylinder barrel (1) is sleeved on the piston rod (2), two ends of the cylinder barrel (1) are hermetically connected with the outer periphery of the piston rod (2), an accommodating cavity is formed between the cylinder barrel (1) and the piston rod (2), and viscous fluid (8) is filled in the accommodating cavity;
the piston (3) is sleeved on the piston rod (2), the outer peripheral surface of the piston (3) is attached to the inner wall of the cylinder barrel (1) so as to divide the accommodating cavity into a first cavity and a second cavity, the piston (3) is provided with an even number of spiral damping flow channels, the axes of the spiral damping flow channels are parallel to the axis of the piston rod (2), one ends of the spiral damping flow channels are communicated with the first cavity, the other ends of the spiral damping flow channels are communicated with the second cavity, and the even number of spiral damping flow channels are uniformly distributed relative to the axis of the piston rod (2).
2. A helical damping channel viscous fluid damper according to claim 1, characterized in that the two helical damping flow paths on the same diameter on the piston (3) have opposite rotation directions.
3. The spiral damping channel viscous fluid damper according to claim 2, wherein the piston (3) is provided with an even number of through holes penetrating in the axial direction, a damping shaft (7) is provided in the through holes, the outer peripheral surface of the damping shaft (7) is attached to the through holes, a spiral flow passage (74) is provided in the outer peripheral surface of the damping shaft (7), and the spiral flow passage (74) communicates the first chamber and the second chamber.
4. The viscous fluid damper with the spiral damping channel according to claim 3, wherein the piston rod (2) is provided with two annular grooves, a limit key (6) is arranged in each annular groove, the piston (3) is positioned between the two annular grooves, and the end part of the piston (3) is abutted against the limit key (6).
5. A spiral damping channel viscous fluid damper according to claim 4, characterized in that the limit key (6) is formed by splicing two symmetrically arranged semi-annular pieces.
6. The helical damping channel viscous fluid damper of claim 4, further comprising:
the first pressing plate (4) is arranged on one side of the piston (3), the first pressing plate (4) is connected with the piston (3) through a screw, and the first pressing plate (4) abuts against one limiting key (6);
the second pressing plate (5) is arranged on the other side of the piston (3), the second pressing plate (5) is connected with the piston (3) through a screw, and the second pressing plate (5) abuts against the other limiting key (6).
7. A spiral damping channel viscous fluid damper according to claim 6, characterized in that one end of the damping shaft (7) is connected to the first presser plate (4) and the other end of the damping shaft (7) is connected to the second presser plate (5).
8. The helical damping channel viscous fluid damper as claimed in claim 7, wherein the damping shaft (7) comprises:
the shaft body (71), the shaft body (71) is cylindrical, and a spiral flow passage (74) is formed in the peripheral surface of the shaft body (71);
two stiff ends (72), two stiff end (72) are located respectively the both ends of axis body (71), one stiff end (72) peg graft to in first clamp plate (4), another stiff end (72) peg graft to in second clamp plate (5).
9. The spiral damping channel viscous fluid damper of claim 8, wherein the cross-sectional shape of the fixed end (72) is square.
10. A spiral damping channel viscous fluid damper according to claim 3, wherein both ends of the damping shaft (7) are opened with a first communicating hole (73) in an axial direction, both ends of the damping shaft (7) are opened with a second communicating hole (75) in a radial direction, one end of the first communicating hole (73) communicates with the accommodating chamber, the other end of the first communicating hole (73) communicates with one end of the second communicating hole (75), and the other end of the second communicating hole (75) communicates with the spiral flow passage (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110742561.9A CN113236701A (en) | 2021-07-01 | 2021-07-01 | Spiral damping channel viscous fluid damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110742561.9A CN113236701A (en) | 2021-07-01 | 2021-07-01 | Spiral damping channel viscous fluid damper |
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| CN113236701A true CN113236701A (en) | 2021-08-10 |
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| CN202110742561.9A Pending CN113236701A (en) | 2021-07-01 | 2021-07-01 | Spiral damping channel viscous fluid damper |
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| CN106051022A (en) * | 2016-05-09 | 2016-10-26 | 江苏大学 | Hydraulic mem-inerter device and application thereof |
| CN205918649U (en) * | 2016-08-29 | 2017-02-01 | 重庆水泵厂有限责任公司 | Multistage water segment structure that pumps of radially split type axial force self -balancing double -shell |
| CN108506404A (en) * | 2018-04-18 | 2018-09-07 | 常州格林电力机械制造有限公司 | A kind of large hydraulic damper |
| CN211745245U (en) * | 2020-03-01 | 2020-10-27 | 承德市艺风园林绿化工程有限公司 | Gardens construction is with high-efficient cave machine of digging |
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2021
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1036352A (en) * | 1964-04-24 | 1966-07-20 | Westland Aircraft Ltd | Improvements in viscous type dampers |
| CN101287926A (en) * | 2004-10-14 | 2008-10-15 | 坦尼科汽车操作有限公司 | Amplitude controlled orifice valving |
| CN101555922A (en) * | 2009-05-13 | 2009-10-14 | 东南大学 | Spiral-hole type viscous damper |
| CN201851356U (en) * | 2010-03-16 | 2011-06-01 | 吕敬辉 | Radial pressure balanced gear pump |
| CN102619747A (en) * | 2012-04-06 | 2012-08-01 | 北京工业大学 | High-pressure seawater hydraulic pump for double-cone opposite-cone threaded rod |
| CN106051022A (en) * | 2016-05-09 | 2016-10-26 | 江苏大学 | Hydraulic mem-inerter device and application thereof |
| CN205918649U (en) * | 2016-08-29 | 2017-02-01 | 重庆水泵厂有限责任公司 | Multistage water segment structure that pumps of radially split type axial force self -balancing double -shell |
| CN108506404A (en) * | 2018-04-18 | 2018-09-07 | 常州格林电力机械制造有限公司 | A kind of large hydraulic damper |
| CN211745245U (en) * | 2020-03-01 | 2020-10-27 | 承德市艺风园林绿化工程有限公司 | Gardens construction is with high-efficient cave machine of digging |
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