CN114877002A - External adjustable rotary viscous variable damper and use method thereof - Google Patents
External adjustable rotary viscous variable damper and use method thereof Download PDFInfo
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- CN114877002A CN114877002A CN202210584533.3A CN202210584533A CN114877002A CN 114877002 A CN114877002 A CN 114877002A CN 202210584533 A CN202210584533 A CN 202210584533A CN 114877002 A CN114877002 A CN 114877002A
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- 238000000034 method Methods 0.000 title claims description 9
- 238000013016 damping Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000000903 blocking effect Effects 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims description 20
- 230000035939 shock Effects 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
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- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 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
- F16F9/10—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
- F16F9/145—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only rotary movement of the effective parts
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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
- F16F9/3235—Constructional features of cylinders
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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
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
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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
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses an external adjustable rotary viscous variable damper, which comprises an end cover, a cylinder barrel, a rotary piston, an external pipeline and an adjusting valve, wherein the end cover is provided with a first end and a second end; the two ends of the cylinder barrel are hermetically connected with the end covers, the inside of the sealed cylinder barrel is provided with the baffle component and the rotary piston, the two ends of the baffle component are fixedly connected to the inner side face of the cylinder barrel, the middle part of the rotary piston is in matched sliding connection with the middle part of the baffle component, and the two ends of the rotary piston are in matched sliding connection with the inner side face of the cylinder barrel; the inside of the cylinder barrel is divided into a plurality of hydraulic cavities by the blocking assembly and the rotary piston, and fluid damping media are filled in the hydraulic cavities; the rotary piston is also connected with an input shaft, and two end parts of the input shaft penetrate through the end covers and are exposed outside the cylinder; the cylinder outside sets up a pair of external pipeline, and the both ends of external pipeline and the inside hydraulic pressure chamber intercommunication of cylinder install adjusting valve on the external pipeline. The damping device can meet the use requirement of damping of the rotating mechanism or the robot joint, and can meet the use requirement of providing different damping for the rotating mechanism or the robot joint according to the requirement.
Description
Technical Field
The invention belongs to the technical field of damping variable dampers, is particularly suitable for rotating mechanisms or robot joints and the like, and particularly relates to an external adjustable rotating viscous variable damper and a using method thereof.
Background
When a fluid medium flows in the path of a closed pipe, the fluid medium passes through a narrow connecting port of a pipeline and short-range local positions such as sudden change of the pipe diameter and the like, the flow form of the fluid medium can be obviously changed due to the rapid change of the diameter or the angle of the pipeline, and special phenomena such as impact, backflow, liquid flow deformation, vortex and the like are directly caused to be generated, the pressure loss generated by the phenomena is local pressure loss, and then the loss can be reduced by using a hydraulic damper which is a damping device sensitive to speed reaction and developed in the 70 th 20 th century; at present, common hydraulic dampers include linear motion dampers and the like, and the linear motion dampers are applied to the industries of machinery, automobiles and the like, are used for alleviating impact caused by mechanical vibration and are relatively widely used; however, the rotary variable damping type damper has been rarely studied, and most dampers have a fixed viscous damping coefficient, and cannot satisfy the use of damping for a rotary mechanism, a robot joint, or the like, and cannot satisfy the requirement of providing different damping to the rotary mechanism, the robot joint, or the like as needed.
Disclosure of Invention
Aiming at the problems, the invention makes up the defects of the prior art and provides an external adjustable rotary viscous variable damper and a using method thereof; the variable damper can meet the use of vibration absorption of a rotating mechanism, a robot joint and the like, and can meet the requirement of providing different damping for the rotating mechanism, the robot joint and the like according to requirements.
In order to achieve the purpose, the invention adopts the following technical scheme.
An external adjustable rotary viscous variable damper comprises an end cover, a cylinder barrel, a rotary piston, an external pipeline and an adjusting valve;
the two ends of the cylinder barrel are hermetically connected with the end covers, a baffle component and a rotary piston are arranged in the sealed cylinder barrel, the two ends of the baffle component are fixedly connected to the inner side face of the cylinder barrel, the middle part of the rotary piston is in matched sliding connection with the middle part of the baffle component, and the two ends of the rotary piston are in matched sliding connection with the inner side face of the cylinder barrel;
the inside of the cylinder barrel is divided into a plurality of hydraulic cavities by the blocking assembly and the rotary piston, and fluid damping media are filled in the hydraulic cavities;
the rotary piston is also connected with an input shaft, and two end parts of the input shaft penetrate through the end covers and are exposed outside the cylinder;
the cylinder outside is provided with a pair of external pipeline, and the both ends of external pipeline and the inside hydraulic pressure chamber intercommunication of cylinder install adjusting valve on the external pipeline.
In a preferred embodiment of the present invention, the inside of the cylinder is divided into two opposing first hydraulic chambers and two opposing second hydraulic chambers by the blocking assembly and the rotary piston, and the first hydraulic chambers are adjacent to the second hydraulic chambers.
As another preferred scheme of the invention, the cylinder barrel is cylindrical, the baffle component comprises two symmetrical partition plates, the two symmetrical partition plates are radially arranged in the cylinder barrel, one ends of the two symmetrical partition plates are connected with the inner side face of the cylinder barrel, a gap is reserved between the other ends of the two symmetrical partition plates, and a rotary piston is inserted into the gap of the two symmetrical partition plates.
As another preferred scheme of the invention, the rotary piston comprises a key sleeve and a shifting plate, the key sleeve is cylindrical, the center of the key sleeve is superposed with the center of the cylinder barrel, and the shifting plate is radially and symmetrically connected with the outer side surface of the key sleeve; the end parts of the two symmetrical partition plates, which are contacted with the outer side surface of the key sleeve of the rotary piston, are provided with first arc sliding surfaces, the first arc sliding surfaces are matched with the outer side surface of the key sleeve, and the end parts of the shifting plates are provided with second arc sliding surfaces matched with the inner side surface of the cylinder barrel.
Furthermore, a key groove is formed in the inner side of the key sleeve, a convex key ring is arranged on the input shaft, and the input shaft is connected with the key groove in the inner side of the key sleeve in a matched mode through the convex key ring.
As another preferred scheme of the invention, the two ends of the cylinder barrel are provided with flanges, the center of the end cover is provided with a through hole which is matched and connected with the input shaft, and the end cover and the flanges are provided with corresponding connecting holes.
As another preferred scheme of the invention, the cylinder barrel is further provided with a pipeline connecting hole, the pipeline connecting hole is respectively formed in the cylinder barrel walls on two sides of the separation and blocking assembly, and two ends of the external pipeline are communicated with the first hydraulic cavity and the second hydraulic cavity in the cylinder barrel through the pipeline connecting holes.
A use method of an external adjustable rotation viscous variable damper comprises the steps of carrying out shock absorption operation on a rotation mechanism or a robot joint, and providing different damping for the rotation mechanism or the robot joint according to requirements;
wherein, the shock attenuation operation is carried out to rotary mechanism or robot joint, including the following step:
step a 1: the output shaft of a motor of a rotating mechanism or a robot joint needing damping is connected with the input shaft of an external adjustable rotary viscous variable damper through a coupler, so that the output shaft of the motor drives the input shaft to rotate, and a rotary piston rotates;
step a 2: when the motor output shaft of the rotating mechanism or the robot joint vibrates in the circumferential direction during rotation, the vibration transmission can be generated on the input shaft of the external adjustable rotation viscous variable damper, and then the rotating piston connected with the input shaft of the external adjustable rotation viscous variable damper can be driven to vibrate; at the moment, through the rotation of the rotary piston, the shifting plate of the rotary piston can push the fluid damping medium in the cylinder barrel into the other adjacent hydraulic cavity from one hydraulic cavity through the external pipeline, so that the two adjacent hydraulic cavities generate damping force due to different pressures, and the vibration of the rotary mechanism or the robot joint is restrained;
wherein the rotary mechanism or the robot joint provides different damping as required, comprising the steps of:
step b 1: connecting a motor output shaft of a rotating mechanism or a robot joint with an input shaft of an external adjustable rotating viscous variable damper through a coupler;
step b 2: the pressure intensity of two adjacent hydraulic cavities is changed by controlling the opening degree of an adjusting valve on the external pipeline, so that the stress magnitude of the rotary piston is changed, and different damping forces are generated.
Further, the adjusting valve is an electric adjusting valve.
The invention has the beneficial effects that:
1. the external adjustable rotary viscous variable damper comprises a cylinder barrel, a blocking component in the cylinder barrel and a rotary piston, wherein the cylinder barrel, the blocking component in the cylinder barrel and the rotary piston form a plurality of hydraulic cavities; meanwhile, the external pipelines arranged outside the pair of cylinder barrels and the adjusting valves arranged on the external pipelines are used for changing the damping coefficient by controlling the opening degree of the adjusting valves, so that the damping force is changed.
2. In conclusion, the external adjustable rotary viscous variable damper realizes the application of the viscous damping principle to the vibration absorption of a rotary mechanism or a robot joint; meanwhile, the external adjustable rotary viscous variable damper is also provided with an external pipeline provided with an adjusting valve, and the use of a rotary mechanism or a robot joint which needs to change the magnitude of the damping coefficient according to requirements is met by controlling the opening of the adjusting valve.
Drawings
Fig. 1 is a schematic structural view of the end cap of the present invention after opening.
Fig. 2 is a schematic structural view of a rotary piston according to the present invention.
Fig. 3 is a schematic structural view of an input shaft of the present invention.
The labels in the figure are: the hydraulic cylinder is characterized in that the hydraulic cylinder is provided with an end cover 1, a second hydraulic cavity 2, a pipeline connecting hole 3, a partition plate 4, a flange plate 5, a regulating valve 6, a cylinder barrel 7, a first arc sliding surface 8, a rotary piston 9, an external pipeline 10, a first hydraulic cavity 11, an input shaft 12, a through hole 13, a connecting hole 14, a convex key ring 15, a key groove 16, a key sleeve 17, a shifting plate 18 and a second arc sliding surface 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in further detail below with reference to the drawings in the embodiments of the present invention, so that the technical problems, technical solutions, and beneficial effects solved by the present invention will be more clearly understood. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 3, the external adjustable rotary viscous variable damper provided by the present invention includes an end cap 1, a cylinder 7, a rotary piston 9, an external pipe 10, and an adjusting valve 6; the two ends of the cylinder barrel 7 are hermetically connected with the end covers 1, a blocking component and a rotary piston 9 are arranged inside the sealed cylinder barrel 7, the two ends of the blocking component are fixedly connected to the inner side face of the cylinder barrel 7, the middle part of the rotary piston 9 is in matched sliding connection with the middle part of the blocking component, and the two ends of the rotary piston 9 are in matched sliding connection with the inner side face of the cylinder barrel 7; the inside of the cylinder barrel 7 is divided into a plurality of hydraulic cavities by the blocking component and the rotary piston 9, and fluid damping media are filled in the hydraulic cavities; the rotary piston 9 is also connected with an input shaft 12, and two end parts of the input shaft 12 penetrate through the end cover 1 and are exposed out of the cylinder barrel 7; a pair of external pipelines 10 are arranged on the outer side of the cylinder barrel 7, two ends of each external pipeline 10 are communicated with the hydraulic cavity inside the cylinder barrel 7, and the external pipelines 10 are provided with regulating valves 6.
The inside of the cylinder barrel 7 is divided into two opposite first hydraulic cavities 11 and two opposite second hydraulic cavities 2 by the blocking component and the rotary piston 9, and the first hydraulic cavities 11 are adjacent to the second hydraulic cavities 2.
The cylinder barrel 7 is cylindrical, the baffle component comprises two symmetrical partition plates 4, the two symmetrical partition plates 4 are radially arranged in the cylinder barrel 7, one ends of the two symmetrical partition plates 4 are all in welded connection with the inner side face of the cylinder barrel 7, a gap is reserved between the other ends of the two symmetrical partition plates 4, and the rotary piston 9 is inserted into the gap of the two symmetrical partition plates 4.
The rotary piston 9 comprises a key sleeve 17 and a shifting plate 18, the key sleeve 17 is cylindrical, the center of the key sleeve 17 is superposed with the center of the cylinder barrel 7, and the shifting plate 18 is radially and symmetrically connected to the outer side surface of the key sleeve 17; the end parts of the two symmetrical partition plates 4, which are contacted with the outer side surface of the key sleeve 17 of the rotary piston 9, are provided with first arc sliding surfaces 8, the first arc sliding surfaces 8 are matched with the outer side surface of the key sleeve 17, and the end part of the shifting plate 18 is provided with a second arc sliding surface 19 matched with the inner side surface of the cylinder barrel 7.
A key groove 16 is formed in the inner side of the key sleeve 17, a convex key ring 15 is arranged on the input shaft 12, and the input shaft 12 is connected with the key groove in the inner side of the key sleeve in a matched mode through the convex key ring.
The two ends of the cylinder barrel 7 are both provided with flange plates 5, the center of the upper end cover 1 is provided with a through hole 13 which is matched and connected with the input shaft 12, and the upper end cover 1 and the flange plates 5 are provided with corresponding connecting holes 14; specifically, the end cover 1 and the flange plate 5 are connected in a sealing mode through bolts and sealing gaskets, and the flange plate 5 is connected with the cylinder barrel 7 in a welding mode.
The cylinder barrel 7 is also provided with a pipeline connecting hole 3, the pipeline connecting holes 3 are respectively formed in the cylinder barrel walls of the cylinder barrel 7 on the two sides of the blocking assembly, and the two ends of the external pipeline 10 are communicated with the first hydraulic cavity 11 and the second hydraulic cavity 2 in the cylinder barrel 7 through the pipeline connecting holes 3; the two ends of the regulating valve 6 on the external pipeline 10 are mounted together with the pipeline through flanges, as shown in fig. 1, the external pipeline 10 is C-shaped, and the regulating valve 6 is mounted in the middle of the C-shaped external pipeline 10.
The external adjustable rotary viscous damper applies a hydraulic throttling principle and the opening of the regulating valve 6 to the damper, changes the pressure between two adjacent hydraulic cavities by regulating the opening of the regulating valve 6 and further changing the flow passing through the regulating valve 6, provides different damping forces for the rotary piston 9, and meets the requirements of damping and the use of a rotary mechanism or a machine joint which changes the damping force according to the requirements.
As shown in fig. 1, 2 and 3, the input shaft 12 is provided with a convex key ring 15 which is matched with a key groove 16 in a key sleeve 17; when the input shaft 12 rotates clockwise, the rotary piston 9 can be driven to rotate clockwise, the second hydraulic cavity 2 is expanded under the pushing of the shifting plate 18, the first hydraulic cavity 11 is compressed, and the fluid damping medium in the first hydraulic cavity 11 enters the second hydraulic cavity 2 through the external pipeline 10 and the regulating valve 6.
The invention provides a use method of an external adjustable rotation viscous variable damper, which comprises the steps of carrying out damping operation on a rotation mechanism or a robot joint, and providing different damping for the rotation mechanism or the robot joint according to requirements;
wherein, carry out shock attenuation operation to slewing mechanism or robot joint, including the following step:
step a 1: the output shaft of a motor of a rotating mechanism or a robot joint needing damping is connected with an input shaft 12 of an external adjustable rotary viscous variable damper through a coupler, so that the output shaft of the motor drives the input shaft 12 to rotate, and a rotary piston 9 rotates;
step a 2: when the motor output shaft of the rotary mechanism or the robot joint vibrates in the circumferential direction during rotation, the vibration is transmitted to the input shaft 12 of the external adjustable rotary viscous variable damper, and then the rotary piston 9 connected with the input shaft 12 of the external adjustable rotary viscous variable damper is driven to vibrate; at this time, through the rotation of the rotary piston 9, the dial plate 18 of the rotary piston 9 pushes the fluid damping medium in the cylinder 7 into another adjacent hydraulic cavity from one hydraulic cavity through the external pipeline 10, so that the pressure intensity of the two adjacent hydraulic cavities is different to generate damping force, and the vibration of the rotary mechanism or the robot joint is suppressed;
wherein the rotary mechanism or the robot joint provides different damping as required, comprising the steps of:
step b 1: connecting a motor output shaft of the rotating mechanism or the robot joint with an input shaft 12 of an external adjustable rotation viscous variable damper through a coupler;
step b 2: the pressure intensity of two adjacent hydraulic cavities is changed by controlling the opening degree of the regulating valve 6 on the external pipeline 10, so that the stress of the rotary piston 9 is changed, and different damping forces are generated.
The adjusting valve 6 is an electric adjusting valve which is an existing valve, the opening of the valve can be controlled through a control unit of the electric adjusting valve, and the flow of a fluid damping medium passing through the adjusting valve 6 is further controlled; fluid damping medium can enter the other hydraulic cavity from one hydraulic cavity through the external pipeline 10 and the regulating valve 6, so that the pressure intensity of two adjacent hydraulic cavities is reduced, and different damping coefficients are provided according to the opening degree of the regulating valve 6.
The external adjustable rotary viscous variable damper of the invention utilizes the cylinder barrel 7, the partition plate 4 in the cylinder barrel 7 and the rotary piston 9 to form a plurality of hydraulic cavities, and utilizes the matching rotation of the input shaft 12 and the rotary piston 9 to provide a torsional damping force for a rotary mechanism or a robot joint connected with the input shaft 12; meanwhile, the pair of external pipelines 10 and the adjusting valves 6 on the external pipelines 10 are utilized to change the damping coefficient by controlling the opening degree of the adjusting valves 6, so that the damping force is changed. The device realizes the application of the viscous damping principle to the damping of the rotating mechanism or the robot joint, and simultaneously, the external pipeline 10 provided with the adjusting valve 6 is arranged, so that the use of the rotating mechanism or the robot joint which needs to change the magnitude of the damping coefficient according to the requirement is met by controlling the opening of the adjusting valve 6.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (9)
1. The utility model provides a rotatory viscous variable damper with adjustable it is external which characterized in that: the device comprises an end cover, a cylinder barrel, a rotary piston, an external pipeline and an adjusting valve;
the two ends of the cylinder barrel are hermetically connected with the end covers, a baffle component and a rotary piston are arranged in the sealed cylinder barrel, the two ends of the baffle component are fixedly connected to the inner side face of the cylinder barrel, the middle part of the rotary piston is in matched sliding connection with the middle part of the baffle component, and the two ends of the rotary piston are in matched sliding connection with the inner side face of the cylinder barrel;
the inside of the cylinder barrel is divided into a plurality of hydraulic cavities by the blocking assembly and the rotary piston, and fluid damping media are filled in the hydraulic cavities;
the rotary piston is also connected with an input shaft, and two ends of the input shaft penetrate through the end covers and are exposed out of the cylinder;
the cylinder outside is provided with a pair of external pipeline, and the both ends of external pipeline and the inside hydraulic pressure chamber intercommunication of cylinder install adjusting valve on the external pipeline.
2. The external adjustable rotary viscous-variable damper according to claim 1, characterized in that: the inside of the cylinder barrel is divided into two opposite first hydraulic cavities and two opposite second hydraulic cavities by the separating and blocking assembly and the rotary piston, and the first hydraulic cavities are adjacent to the second hydraulic cavities.
3. The external adjustable rotary viscous-variable damper according to claim 2, characterized in that: the cylinder is cylindrical, the baffle component comprises two symmetrical partition plates, the two symmetrical partition plates are radially arranged in the cylinder, one ends of the two symmetrical partition plates are connected with the inner side face of the cylinder, a gap is reserved between the other ends of the two symmetrical partition plates, and rotary pistons are inserted into the gaps of the two symmetrical partition plates.
4. The external adjustable rotary viscous-variable damper according to claim 3, characterized in that: the rotary piston comprises a key sleeve and a shifting plate, the key sleeve is cylindrical, the center of the key sleeve is superposed with the center of the cylinder barrel, and the shifting plate is radially and symmetrically connected with the outer side surface of the key sleeve; the end parts of the two symmetrical partition plates, which are contacted with the outer side surface of the key sleeve of the rotary piston, are provided with first arc sliding surfaces, the first arc sliding surfaces are matched with the outer side surface of the key sleeve, and the end parts of the shifting plates are provided with second arc sliding surfaces matched with the inner side surface of the cylinder barrel.
5. The external adjustable rotary viscous-variable damper according to claim 4, characterized in that: the key groove is formed in the inner side of the key sleeve, the convex key ring is arranged on the input shaft, and the input shaft is connected with the key groove in the inner side of the key sleeve in a matched mode through the convex key ring.
6. The external adjustable rotary viscous variable damper according to claim 1, characterized in that: the two ends of the cylinder barrel are provided with flange plates, the center of the end cover is provided with a through hole which is connected with the input shaft in a matched mode, and the end cover and the flange plates are provided with corresponding connecting holes.
7. The external adjustable rotary viscous-variable damper according to claim 1, characterized in that: still be provided with the pipeline on the cylinder and connect the hole, the pipeline connects the hole to set up respectively on separating the cylinder section of thick bamboo wall that keeps off the subassembly both sides, and the both ends of external pipeline connect the hole through the pipeline and communicate with inside first hydraulic pressure chamber, the second hydraulic pressure chamber of cylinder.
8. The use method of the external adjustable rotary viscous variable damper is characterized by comprising the steps of carrying out shock absorption operation on a rotary mechanism or a robot joint, and providing different damping for the rotary mechanism or the robot joint according to requirements;
wherein, the shock attenuation operation is carried out to rotary mechanism or robot joint, including the following step:
step a 1: the output shaft of a motor of a rotating mechanism or a robot joint needing damping is connected with the input shaft of an external adjustable rotary viscous variable damper through a coupler, so that the output shaft of the motor drives the input shaft to rotate, and a rotary piston rotates;
step a 2: when the motor output shaft of the rotating mechanism or the robot joint vibrates in the circumferential direction during rotation, the vibration transmission can be generated on the input shaft of the external adjustable rotation viscous variable damper, and then the rotating piston connected with the input shaft of the external adjustable rotation viscous variable damper can be driven to vibrate; at the moment, through the rotation of the rotary piston, the shifting plate of the rotary piston can push the fluid damping medium in the cylinder barrel into the other adjacent hydraulic cavity from one hydraulic cavity through the external pipeline, so that the two adjacent hydraulic cavities generate damping force due to different pressures, and the vibration of the rotary mechanism or the robot joint is restrained;
wherein the rotary mechanism or the robot joint provides different damping as required, comprising the steps of:
step b 1: connecting a motor output shaft of a rotating mechanism or a robot joint with an input shaft of an external adjustable rotating viscous variable damper through a coupler;
step b 2: the pressure intensity of two adjacent hydraulic cavities is changed by controlling the opening degree of an adjusting valve on the external pipeline, so that the stress magnitude of the rotary piston is changed, and different damping forces are generated.
9. The use method of the external adjustable rotary viscous-variable damper as claimed in claim 8, characterized in that: the adjusting valve is an electric adjusting valve.
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| CN202210584533.3A CN114877002A (en) | 2022-05-27 | 2022-05-27 | External adjustable rotary viscous variable damper and use method thereof |
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| CN202210584533.3A CN114877002A (en) | 2022-05-27 | 2022-05-27 | External adjustable rotary viscous variable damper and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115674208A (en) * | 2022-12-30 | 2023-02-03 | 广东隆崎机器人有限公司 | Robot vibration suppression device, control method and robot thereof |
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| CN107327539A (en) * | 2017-06-22 | 2017-11-07 | 金华集群科技有限公司 | A kind of fluid damping automatic adjusument flywheel and its damping adjusting method |
| CN108916294A (en) * | 2018-06-20 | 2018-11-30 | 安徽工程大学 | Rotary type hydraulic damper |
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| CN1605768A (en) * | 2003-10-06 | 2005-04-13 | 托克轴承株式会社 | Rotating damper |
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| CN106438815A (en) * | 2016-11-07 | 2017-02-22 | 湖北汽车工业学院 | Electronic control variable-damping rotation hydraulic damper |
| CN107327539A (en) * | 2017-06-22 | 2017-11-07 | 金华集群科技有限公司 | A kind of fluid damping automatic adjusument flywheel and its damping adjusting method |
| CN108916294A (en) * | 2018-06-20 | 2018-11-30 | 安徽工程大学 | Rotary type hydraulic damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115674208A (en) * | 2022-12-30 | 2023-02-03 | 广东隆崎机器人有限公司 | Robot vibration suppression device, control method and robot thereof |
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