CN108071730A - A kind of main passive damping device - Google Patents
A kind of main passive damping device Download PDFInfo
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- CN108071730A CN108071730A CN201710735617.1A CN201710735617A CN108071730A CN 108071730 A CN108071730 A CN 108071730A CN 201710735617 A CN201710735617 A CN 201710735617A CN 108071730 A CN108071730 A CN 108071730A
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- hydraulic stem
- cylinder body
- cavity
- cylinder
- catch
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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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/066—Units characterised by the partition, baffle or like element
- F16F9/067—Partitions of the piston type, e.g. sliding pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
- F16F9/461—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall characterised by actuation means
- F16F9/462—Rotary actuation means
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
- F16F9/466—Throttling control, i.e. regulation of flow passage geometry
- F16F9/467—Throttling control, i.e. regulation of flow passage geometry using rotary valves
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
- F16F9/466—Throttling control, i.e. regulation of flow passage geometry
- F16F9/469—Valves incorporated in the piston
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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
- F16F9/54—Arrangements for attachment
-
- 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
- F16F9/58—Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention belongs to damper technique fields, provide a kind of main passive damping device, including：Bottom offers the inlet and the power cylinder of liquid outlet that are connected with hydraulic pump；Through the cylinder body of power cylinder openend, and cylinder body bottom is arranged in power cylinder, and cylinder body bottom forms the 4th cavity with power cylinder bottom and power cylinder side wall；It is sealed in the cylinder end caps of cylinder body openend；Through the hydraulic stem of cylinder end caps through hole, one end that hydraulic stem is equipped with hydraulic stem disk is arranged in cylinder body, hydraulic stem disk through hole is offered on hydraulic stem disk, cylinder end caps form the first cavity with hydraulic stem disk and power cylinder side wall, and hydraulic stem disk forms central cavity with the side wall of cylinder body bottom and cylinder body；First cavity, central cavity and the 4th cavity are filled with liquid.Damper structure is simple, and the driving force of active can be provided in dynamic state, and passive Telescopic can be realized in non-power state.
Description
Technical field
The invention belongs to damper technique fields, are to be related to a kind of main passive damping device more specifically.
Background technology
Damper is a kind of resistance for providing movement, the device of depletion kinergety, which is widely used in antidetonation and subtracts
Shake field.The operation principle of conventional hydraulic damper is：When hydraulic damper is stressed, piston rod is hampered by hydraulic pressure oilhole limit
It makes the effect with spring pressure and shrinks back, play damping action, pressure is cancelled, and under the action of return spring, beats automatically
Open the rapid oil return of check valve of another oil duct, piston rod return.
However traditional hydraulic damper can only be used in the case that being stressed, by cannot then be used during pulling force, therefore nothing
Method provides the driving force of active while passive Telescopic is provided, and the grease chamber before and after piston need to separately set casing as logical
Road, it is complicated.
More than deficiency, have much room for improvement.
The content of the invention
It is an object of the invention to provide a kind of main passive damping devices, can not to solve damper in the prior art
While passive Telescopic is provided provide active driving force and it is complicated the technical issues of.
To achieve the above object, the technical solution adopted by the present invention is：A kind of main passive damping device is provided, including：
Power cylinder, the power cylinder bottom of the power cylinder offer inlet and liquid outlet for being connected with hydraulic pump；
Cylinder body, the cylinder body pass through the openend of the power cylinder, and the cylinder body bottom of the cylinder body is arranged on the power cylinder
It is interior, and the cylinder body bottom and the interior wall seamless of the power cylinder are slidably connected, the cylinder body bottom and the power cylinder bottom
And the 4th cavity is formed between the power cylinder side wall；
Cylinder end caps, the cylinder end caps are sealed in the cylinder body openend of the cylinder body, and the cylinder end caps offer end
Lid through hole；
Hydraulic stem, the hydraulic stem pass through the end cap through hole, and end is equipped with hydraulic stem disk, the hydraulic stem disk
In the cylinder body, the hydraulic stem disk offers hydraulic stem disk through hole, the circumference of the hydraulic stem disk with it is described
The interior wall seamless of cylinder body is slidably connected；It is formed between the cylinder end caps and the hydraulic stem disk and the side wall of the cylinder body
First cavity；Central cavity is formed between the hydraulic stem disk and the cylinder body bottom and the side wall of the cylinder body；
First cavity, the central cavity and the 4th cavity are filled with liquid.
Further, further include：
Motor, the hydraulic stem is hollow, and the motor is arranged in the hydraulic stem, and the motor is equipped with motor shaft；
Catch, the catch is arranged between the hydraulic stem disk and the cylinder body bottom and the catch passes through the electricity
Arbor is connected with the motor, and the motor can drive the catch to rotate, and the catch leads to compared with the hydraulic stem disk
The position in hole offers catch through hole, and the registration of the catch through hole and the hydraulic stem disk through hole passes through the motor tune
Section.
Further, the catch through hole is identical with the size of the hydraulic stem disk through hole.
Further, the catch is equipped with catch flange, and the catch flange is arranged in the hydraulic stem.
Further, sliding bearing, the outer wall of the sliding bearing and the hydraulic stem are arranged on the catch flange
Interior wall seamless be slidably connected.
Further, one end that the hydraulic stem is arranged on outside the cylinder body is equipped with hydraulic pressure stem cover, the hydraulic pressure stem cover
It is equipped with the end cap connecting portion being attached with external equipment.
Further, further include：
Free-piston, the free-piston are arranged between the catch and the cylinder body bottom, the circle of the free-piston
All interior wall seamless with the cylinder body are slidably connected；
The second cavity, second cavity are formed between the free-piston and the side wall of the catch and the cylinder body
It is interior filled with liquid；
The 3rd cavity of formation between the free-piston and the cylinder body bottom and the side wall of the cylinder body, the described 3rd
Chamber is filled with air；
Bottom spring, the bottom spring be arranged on the 3rd cavity in, and the both ends of the bottom spring respectively with institute
Free-piston is stated to connect with the cylinder body bottom.
Further, inner spring is further included, the inner spring is sheathed on the hydraulic stem, and the inner spring is arranged on institute
It states between cylinder end caps and the hydraulic stem disk.
Further, further include：
Adjusting nut, the adjusting nut are sheathed on the hydraulic stem and outside the cylinder bodies, the adjusting nut
It can be slided along the hydraulic stem；
Outer spring, the outer spring be sheathed on the hydraulic stem and arranged on the cylinder end caps and the adjusting nut it
Between.
Further, the power cylinder bottom is additionally provided with the bottom connecting portion being attached with external equipment.
A kind of advantageous effect of main passive damping device provided by the invention is：Damper structure is simple, and due to power
The mutual cooperation of cylinder, cylinder body and hydraulic stem so that main passive damping device can provide the driving force of active in dynamic state,
It can realize passive Telescopic in non-power state, the liquid in the first cavity and the 4th cavity passes through hydraulic stem disk through hole
Damping action can be generated to the movement of hydraulic stem, the driving of active can both be provided by realizing same damper when mutually flowing
Power, and can realize passive Telescopic.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the cross-sectional view of main passive damping device provided in an embodiment of the present invention；
Fig. 2 is a kind of structure diagram of main passive damping device provided in an embodiment of the present invention；
Fig. 3 is the partial structural diagram of main passive damping device provided in an embodiment of the present invention；
Fig. 4 is another structure diagram of main passive damping device provided in an embodiment of the present invention；
Fig. 5 is the configuration schematic diagram of main passive damping device provided in an embodiment of the present invention.
Wherein, each reference numeral in figure：
11- cylinder bodies；111- cylinder bodies bottom；112- cylinder bodies openend；
12- cylinder end caps；121- end cap through holes；122- cover flanges；
21- hydraulic stems；211- hydraulic stem disks；2111- hydraulic stem disk through holes；
22- motors；221- motor shafts；222- catch；
2221- catch through holes；2222- catch flanges；23- sliding bearings；
24- hydraulic pressure stem covers；241- end cap connecting portions；
32- free-pistons；33- bottoms spring；34- inner springs；
35- outer springs；351- adjusting nuts；The first cavitys of 41-；
The second cavitys of 42-；The 3rd cavitys of 43-；The 4th cavitys of 44-.
51- power cylinders；511- power cylinders bottom；512- openends；
513- inlets；514- liquid outlets；515- bottoms connecting portion.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being arranged at " another element, it can be directly on another element
Or it is connected on another element.When an element is known as " being connected to " another element, it can directly be connected
It is connected to another element or is indirectly connected on another element.In addition, term " first ", " second " are only used for description mesh
, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.It limits as a result,
Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".The present invention's
In description, " multiple " are meant that two or more, unless otherwise specifically defined.
It please refers to Fig.1, Fig. 3 and Fig. 5, a kind of main passive damping device, including power cylinder 51, cylinder body 11,12 He of cylinder end caps
Hydraulic stem 21.The power cylinder bottom 511 of power cylinder 51 offers the inlet 513 being connected with hydraulic pump and liquid outlet 514；
Cylinder body 11 passes through the openend 512 of power cylinder 51, and cylinder body bottom 111 is arranged in power cylinder 51, and cylinder body bottom 111 and power cylinder
51 interior wall seamless is slidably connected, and the 4th chamber is formed between 51 side wall of cylinder body bottom 111 and power cylinder bottom 511 and power cylinder
Body 44；Cylinder end caps 12 are sealed in the cylinder body openend 112 of cylinder body 11, and cylinder end caps 12 offer end cap through hole 121；Hydraulic stem
21 pass through end cap through hole 121, and the outer diameter of hydraulic stem 21 matches with 121 diameter of end cap through hole, i.e., hydraulic stem 21 leads to end cap
Hole 121 is seamless to be slidably connected, and the end of hydraulic stem 21 is equipped with hydraulic stem disk 211, and hydraulic stem disk 211 is arranged in cylinder body 11,
Hydraulic stem disk 211 offers hydraulic stem disk through hole 2111, and the circumference of hydraulic stem disk 211 is slided with the interior wall seamless of cylinder body 11
Dynamic connection；The first cavity 41, hydraulic stem disk are formed between cylinder end caps 12 and the side wall of hydraulic stem disk 211 and cylinder body 11
Central cavity is formed between 211 and the side wall of cylinder body bottom 111 and cylinder body 11；First cavity 41, central cavity and the 4th chamber
Body 44 is filled with liquid.
The operation principle of main passive damping device provided in this embodiment is as follows：
It is hydraulically full in the first cavity 41, central cavity and the 4th cavity 44 first；
During non-power state, hydraulic pressure air pump inoperative, inlet 113 and liquid outlet 114 are closed completely, so that the 4th
Amount of liquid in cavity 44 is consistent, and with power cylinder 51 relative motion does not occur for cylinder body 11, when hydraulic stem 21 is under pressure,
Hydraulic stem 21 is moved to close to the direction of cylinder body bottom 111, so that hydraulic stem disk 211 is to close to cylinder body bottom 111
Direction is moved, and the volume of central cavity reduces, and the liquid in central cavity is by hydraulic stem disk through hole 2111 to the first cavity
41 flowings so as to play damping action to the movement of hydraulic stem, while adapt to the volume variation of central cavity；When hydraulic stem 21 by
During to pulling force, hydraulic stem 21 is moved to the direction away from cylinder body bottom 111, so that hydraulic stem disk 211 is to away from cylinder body
The direction movement of bottom 111, the volume of central cavity become larger, and the liquid in the first cavity 41 passes through hydraulic stem disk through hole 2111
It is flowed to central cavity, so as to play damping action to the movement of hydraulic stem, while adapts to the volume variation of central cavity；
During dynamic state, hydraulic pump works, inlet 113 and liquid outlet 114 are opened and are connected with hydraulic pump, hydraulic pressure
Pump injects liquid by inlet 113 to the 4th cavity 44, and liquid increases the pressure of cylinder body 11 in the 4th cavity 44, so that
Cylinder body 11 is moved to the direction away from power cylinder bottom 511, and then increase in central cavity liquid to the pressure of hydraulic stem 21,
So as to which hydraulic stem 21 be promoted to be moved to the direction away from cylinder body bottom 111, the volume of the first cavity 41 becomes smaller, in the first cavity 41
Liquid flowed by hydraulic stem disk through hole 2111 to central cavity, so as to playing damping action to the movement of hydraulic stem 21,
The volume variation of the first cavity 41 is adapted to simultaneously；When the liquid in the 4th cavity 44 flows out the 4th cavity 44 by liquid outlet 114
When, liquid reduces the pressure of cylinder body bottom 111 in the 4th cavity 44, so that cylinder body 11 is to close to power cylinder bottom 511
Direction movement, and then reduce in central cavity that liquid is to the pressure of hydraulic stem 21, so as to promote hydraulic stem 21 to close to cylinder body
The direction movement of bottom 111, the volume of central cavity becomes smaller, the liquid in central cavity by hydraulic stem disk through hole 2111 to
First cavity 41 flows, and so as to play damping action to the movement of hydraulic stem 21, while adapts to the volume variation of central cavity.
The advantageous effect so set is：Damper structure is simple, and due to power cylinder 51, cylinder body 11 and hydraulic stem 21
Mutual cooperation so that main passive damping device can provide the driving force of active in dynamic state, in non-power state
It can realize passive Telescopic, the liquid in the first cavity 41 and the 4th cavity 44 passes through hydraulic stem disk through hole 2111 and mutually flows
When dynamic damping action can be generated to the movement of hydraulic stem 21, the driving force of active can both be provided by realizing same damper,
It can realize passive Telescopic again.
Further, cylinder end caps 12 are equipped with cylinder end caps flange 122, when cylinder end caps 12 and cylinder body openend 112 are matched somebody with somebody
When closing connection, cylinder end caps flange 122 is placed in cylinder body 11, and the inner wall of the outer wall of cylinder end caps flange 122 and cylinder body 11 without
Seam is connected, and the diameter of cylinder end caps 12 is not less than the outer diameter of cylinder body 11.Cylinder body bottom 111, which is additionally provided with, to be used for and external equipment
The bottom connecting portion 115 of connection.
Further, main passive damping device provided in this embodiment further includes motor 22 and catch 222, in hydraulic stem 21
Sky, motor 22 are arranged in hydraulic stem 21, and motor 22 is equipped with motor shaft 221；Catch 222 is arranged on hydraulic stem disk 211 and cylinder body bottom
Between end 111 and catch 222 is connected by motor shaft 221 with motor 22, and motor 22 can drive catch 222 to rotate, 222 phase of catch
Catch through hole 2221, catch through hole 2221 and hydraulic stem disk through hole are offered for the position of hydraulic stem disk through hole 2111
2111 registration is adjusted by motor 22.The diameter of catch 222 is identical with the diameter of hydraulic stem disk 211, catch through hole
2221 is identical with the size of hydraulic stem disk through hole 2111.
It please refers to Fig.1 and Fig. 3, motor 22 can drive catch 222 rotate by motor shaft 221, so as to adjust catch
The registration of through hole 2221 and hydraulic stem disk through hole 2111, and then liquid is adjusted between the first cavity 41 and central cavity
Flowing velocity, and then the stretching speed of adjustable hydraulic stem 21, so as to play damping action：When catch through hole 2221 and hydraulic stem
When disk through hole 2111 is completely misaligned, the liquid in liquid and central cavity in the first cavity 41 can not mutually flow, from
And cause hydraulic stem 21 can not opposing cylinder 11 move；When catch through hole 2221 and hydraulic stem disk through hole 2111 are completely superposed
When, the resistance that the liquid in liquid and central cavity in the first cavity 41 mutually flows is minimum, when being moved so as to hydraulic stem 21
Resistance it is minimum, the stretching speed of hydraulic stem 21 is most fast；Catch through hole 2221 and the registration of hydraulic stem disk through hole 2111 are got over
Small, the resistance that the liquid in liquid and central cavity in the first cavity 41 mutually flows is bigger, the stretching speed of hydraulic stem 21
It is slower.
In the present embodiment, the identical hydraulic stem disk of 8 sizes is uniformly provided on the circumference of hydraulic stem disk 211 to lead to
Hole 2111, the circumference of catch 222 accordingly offer 8 identical catch of size compared with the position of hydraulic stem disk through hole 2111
Through hole 2221.
In other embodiments, the diameter of catch 222 can be slightly less than the diameter of hydraulic stem disk 211, on catch 222
Catch through hole 2221 is corresponding with the position of hydraulic stem disk through hole 2111.
Further, catch 222 is equipped with catch flange 2222, and catch flange 2222 is arranged in hydraulic stem 21, so that
Catch 222 can be preferably connected with hydraulic stem 21.Sliding bearing 23 is arranged on catch flange 2222, and sliding bearing 23 is interior
Footpath and the outer diameter of catch flange 2222 match, and the outer wall of sliding bearing 23 is arranged on the inner wall of hydraulic stem 21, and sliding bearing 23
The internal diameter of outer diameter and hydraulic stem 21 match.When opposing hydraulic bar 21 rotates under drive of the catch 222 in motor 22, slide
Bearing 23 can greatly reduce friction loss and surface abrasion, and stable working, reliable, noiseless.
Further, one end that hydraulic stem 21 is arranged on outside cylinder body 11 is equipped with hydraulic pressure stem cover 24, is set on hydraulic pressure stem cover 24
It is useful for the end cap connecting portion 241 being attached with external equipment.Motor 22 can be encapsulated in hydraulic stem by hydraulic pressure stem cover 24
In 21, on the one hand motor 22 can be protected, on the other hand but also main passive damping device appearance is more beautiful.
It please refers to Fig.1, Fig. 4 and Fig. 5, further, main passive damping device provided in this embodiment further includes free-piston
32 and bottom spring 33, free-piston 32 is arranged between catch 222 and cylinder body bottom 111, the circumference and cylinder body of free-piston 32
11 interior wall seamless is slidably connected；The second cavity 42 is formed between free-piston 32 and the side wall of catch 222 and cylinder body 11, the
Filled with liquid in two cavitys 42；The 3rd cavity 43 is formed between free-piston 32 and the side wall of cylinder body bottom 111 and cylinder body 11,
Filled with air in 3rd cavity 43；Bottom spring 33 be arranged on the 3rd cavity 43 in, and the both ends of bottom spring 33 respectively with freedom
Piston 32 and cylinder body bottom 11 connect.
The accumulation of energy of bottom spring 33 and the process to release energy are as follows：
Under non-power state, when hydraulic stem 21 is under pressure, hydraulic stem 21 is moved to close to the direction of cylinder body bottom 111
Dynamic, so that hydraulic stem disk 211 is moved to close to the direction of cylinder body bottom 111,42 volume of the second cavity reduces, the
Pressure increase in two cavitys 42, so as to which free-piston 32 be promoted to be moved to the direction close to cylinder body bottom 111, so as to compress bottom
Portion's spring 33, energy storage is in the bottom spring 33 compressed；When 21 under tension of hydraulic stem, hydraulic stem 21 is to away from cylinder
The direction movement of body bottom 111, so that hydraulic stem disk 211 is moved to the direction away from cylinder body bottom 111, the second cavity
42 volume becomes larger, and the pressure in the second cavity 42 reduces, and bottom spring 33 is gradually replied, so as to which the energy that will be stored discharges,
Free-piston 32 is promoted to be moved to the direction away from cylinder body bottom 111；
Under dynamic state, when hydraulic pump injects liquid by inlet 113 to the 4th cavity 44, in the 4th cavity 44
Liquid increases the pressure of cylinder body bottom 111, and cylinder body bottom 111 is promoted to be moved to the direction away from power cylinder bottom 511, and then
Increase the pressure of liquid in the second cavity 42 to free-piston 32, so as to compressing bottom spring 33, energy storage is being compressed
In bottom spring 33；When the liquid in the 4th cavity 44 flows out four cavitys 44 by liquid outlet 114, liquid in the 4th cavity 44
Body reduces the pressure of cylinder body bottom 111, and cylinder body bottom 111 is promoted to be moved to close to the direction of power cylinder bottom 511, and then is subtracted
Liquid is to the pressure of free-piston 32, the gradually reply of bottom spring 33 in small second cavity 42, so that the energy that will be stored discharges,
Cylinder body bottom 111 is promoted to be moved to close to the direction of cylinder base 111.
Due to being full of air in the 3rd cavity 43, and telescopic bottom spring 33 is equipped in the 3rd cavity 43, therefore the
Three cavitys 43 are telescopic cavity, and the compression of one side bottom spring 33 and Recovery Process can play the role of accumulation of energy and release
The effect of energy, the compressibility of the 3rd cavity 43 of another aspect can solve hydraulic stem 21 to close to the side of cylinder body bottom 111
The problem of pressure caused by reducing to 42 volume of the second cavity during movement is excessive so that hydraulic stem 21 causes in telescopic process
Cylinder body 21 in the second cavity 42 variation it is adaptable, so as to play a protective role to main passive damping device.
Further, main passive damping device provided in this embodiment further includes inner spring 34, and inner spring 34 is sheathed on hydraulic pressure
On bar 21, and inner spring 34 is arranged between cylinder end caps 12 and hydraulic stem disk 211.Since hydraulic stem 21 is to away from cylinder body bottom
Inner spring 34 can be compressed during the direction movement at end 111, energy storage is in the inner spring 34 compressed；Hydraulic stem 21 is to close
Inner spring 34 is gradually replied during the direction movement of cylinder body bottom 111, so as to the energy release that will be stored, hydraulic stem 21 is promoted to transport
It is dynamic.Therefore inner spring 34 can play the role of accumulation of energy and be released energy in the telescopic process of hydraulic stem 21.
It please refers to Fig.1, Fig. 2 and Fig. 5, further, main passive damping device provided in this embodiment further includes adjusting nut
351, adjusting nut 351 is sheathed on hydraulic stem 21 and outside cylinder body 11, adjusting nut 351 can be slided along hydraulic stem 21；Outside
Spring 35, outer spring 35 are sheathed on hydraulic stem 21 and arranged between cylinder end caps 12 and adjusting nuts 351.Due to adjusting nut
351 can slide along hydraulic stem 21, so as to adjust the initial compression length of outer spring 35, and then can adjust initial preload
Power.Since hydraulic stem 21 when being moved close to the direction of cylinder body bottom 111 to that can compress outer spring 35, energy storage is being compressed
Outer spring 35 in；The outer spring 35 when being moved to the direction away from cylinder body bottom 111 of hydraulic stem 21 is gradually replied, so as to store up
The energy release deposited, promotes hydraulic stem 21 to move.Therefore outer spring 35 can be played in the telescopic process of hydraulic stem 21 accumulation of energy and
The effect to release energy.
Main passive damping device provided in this embodiment can be used for the knee joint position of assistant robot, and main passive damping device can
It is walked by the flexible help user of hydraulic stem, while adjustable damping action is provided；Main passive damping device connects hydraulic pressure
Pump can provide active drive power, so as to help user's stair activity or auxiliary user's walking, while provide adjustable
Damping action；Simultaneously when user needs support, main passive damping device is alternatively user and provides larger support force.
Operation principle when main passive damping device provided in this embodiment is connected to the knee joint position of assistant robot is such as
Under：
It is hydraulically full in the first cavity 41, the second cavity 42 and the 4th cavity 44 first, and keep filling in the 3rd cavity
Full air.
During non-power state, hydraulic pressure air pump inoperative, inlet 113 and liquid outlet 114 are closed completely, so that the 4th
Amount of liquid in cavity 44 is consistent, and with power cylinder 51 relative motion does not occur for cylinder body bottom 111；
When user goes down on one's knees, hydraulic stem 21 is under pressure, and hydraulic stem 21 is moved to close to the direction of cylinder body bottom 111,
So that hydraulic stem disk 211 is moved to close to the direction of cylinder body bottom 111, outer spring 35 is compressed, and energy storage is in quilt
In the outer spring 35 of compression, 42 volume of the second cavity reduces, and the pressure increase in the second cavity 42 promotes free-piston 32
It is moved to the direction close to cylinder body bottom 111, so as to compress bottom spring 33, energy storage is in the bottom spring 33 compressed
In, the liquid in the second cavity 42 is flowed by hydraulic stem disk through hole 2111 to the first cavity 41, to adapt to the second cavity 42
Volume variation, the volume increase of the first cavity 41, the inner spring 34 in the first cavity 41 gradually replys, and is stored in inner spring 34
In energy release；
When user stretches knee, 21 under tension of hydraulic stem, hydraulic stem 21 is moved to the direction away from cylinder body bottom 111,
So that hydraulic stem disk 211 is moved to the direction away from cylinder body bottom 111, outer spring 35 is gradually replied, and is stored in outer bullet
Energy release in spring 35, the volume of the second cavity 42 become larger, and the pressure in the second cavity 42 reduces, and bottom spring 33 gradually returns
It is multiple, so as to the energy release that will be stored, free-piston 33 is promoted to be moved to the direction away from cylinder body bottom 111, the first cavity 41
In liquid flowed by hydraulic stem disk through hole 2111 to the second cavity 42, to adapt to the variation of the volume of the second cavity 42, the
The volume of one cavity 41 becomes smaller, and the inner spring 34 in the first cavity 41 is compressed, and energy storage is in the inner spring 34 compressed.
During dynamic state, hydraulic pump works, inlet 113 and liquid outlet 114 are opened and are connected with hydraulic pump completely；
Hydraulic pump injects liquid by inlet 113 to the 4th cavity 44, and liquid is to the pressure of cylinder body 11 in the 4th cavity 44
Power increases, so that cylinder body 11 is moved to the direction away from power cylinder bottom 511, and then increases liquid pair in the second cavity 42
The pressure of hydraulic stem 21 and free-piston 32, so as to compress bottom spring 33, energy storage in the bottom spring 33 compressed,
Hydraulic stem 21 is promoted to be moved to the direction away from cylinder body bottom 111 simultaneously, the volume of the first cavity 41 becomes smaller, in the first cavity 41
Liquid by hydraulic stem disk through hole 2111 to central cavity flow, with adapt to the volume of the first cavity 41 variation, the first chamber
Inner spring 34 in body 41 is compressed, and energy storage is in the inner spring 34 compressed, while outer spring 35 is gradually replied, storage
Energy release in outer spring 35；
When the liquid in the 4th cavity 44 flows out four cavitys 44 by liquid outlet 114, liquid pair in the 4th cavity 44
The pressure of cylinder body bottom 111 reduces, so that cylinder body 11 is moved to close to the direction of power cylinder bottom 511, and then reduces the
Liquid is to the pressure of hydraulic stem 21 and free-piston 32 in two cavitys 42, and bottom spring 33 is gradually replied, so as to the energy that will be stored
Amount release, promotes cylinder body bottom 111 to be moved to close to the direction of power cylinder bottom 511, while promotes hydraulic stem 21 to close to cylinder
The direction movement of body bottom 111, the volume of the second cavity 42 become smaller, and the liquid in the second cavity 42 passes through hydraulic stem disk through hole
2111 flow to the first cavity 41, and to adapt to the variation of the volume of the second cavity 42, the volume of the first cavity 41 becomes larger, the first cavity
Inner spring 34 in 41 is gradually replied, and the energy release being stored in inner spring 34, outer spring 35 is compressed, and energy storage is outside
In spring 35.
It, can be by adjusting catch through hole 2221 and hydraulic stem either in dynamic state or non-power state
The registration of disk through hole 2111 adjusts flowing velocity of the liquid between the first cavity 41 and the second cavity 42, and then adjustable
The stretching speed of hydraulic stem 21 is saved, so as to play damping action, catch through hole 2221 is overlapped with hydraulic stem disk through hole 2111
Spend smaller, the resistance that the liquid in liquid and the second cavity 42 in the first cavity 41 mutually flows is relatively bigger, hydraulic stem 21
Stretching speed it is relatively slower.
When in holding state, catch through hole 2221 is completely misaligned with hydraulic stem disk through hole 2111, so that
The liquid in liquid and the second cavity 42 in first cavity 41 can not mutually flow, and hydraulic stem 21 is not sent out compared with hydraulic cylinder 11
Raw movement, therefore larger support force can be provided.
Main passive damping device provided in this embodiment has the beneficial effect that：
(1) mutual cooperation of power cylinder 51, cylinder body 11 and hydraulic stem 21 so that main passive damping device is in dynamic state
The driving force of active can be provided, passive Telescopic can be realized in non-power state, it is achieved thereby that same damper
The driving force of active can be not only provided, but also can realize passive Telescopic；
(2) motor 22 can drive catch 222 to rotate by motor shaft 221, so as to adjust catch through hole 2221 and liquid
The registration of compression bar disk through hole 2111, and then flowing velocity of the liquid between the first cavity 41 and the second cavity 42 is adjusted,
And then the stretching speed of adjustable hydraulic stem 21, so as to play damping action；
Full of air in (3) the 3rd cavitys 43, and telescopic bottom spring 33, therefore the 3rd are equipped in the 3rd cavity 43
Cavity 43 is telescopic cavity, solves hydraulic stem 21 caused by 42 volume of the second cavity when being moved close to cylinder body 1 reduces
Pressure it is excessive the problem of so that the variation of second cavity 42 in caused cylinder body 11 in telescopic process of hydraulic stem 21 has suitable
Ying Xing, so as to play a protective role to main passive damping device；
(4) bottom spring 33, inner spring 34 and outer spring 35 can be with accumulation of energys, during reply during compression
It can release energy, not only save energy, but also cushioning effect is played in the compression of spring and Recovery Process, and under being
Action once provides power；
(5) it is in different convalescences according to user to be adjusted adjusting nut 351, so as to adjust just
Beginning pretightning force meets the requirement of different users；
(6) according to the curved maximum angle situation of user leg energy, adjusted by adjusting the length of the 4th cavity 44
The curved maximum angle of assistant robot knee joint energy, meets the requirement of different users.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of main passive damping device, it is characterised in that：Including
Power cylinder, the power cylinder bottom of the power cylinder offer inlet and liquid outlet for being connected with hydraulic pump；
Cylinder body, the cylinder body pass through the openend of the power cylinder, and the cylinder body bottom of the cylinder body is arranged in the power cylinder, and
The cylinder body bottom and the interior wall seamless of the power cylinder are slidably connected, the cylinder body bottom and the power cylinder bottom and institute
It states and the 4th cavity is formed between power cylinder side wall；
Cylinder end caps, the cylinder end caps are sealed in the cylinder body openend of the cylinder body, and the cylinder end caps offer end cap and lead to
Hole；
Hydraulic stem, the hydraulic stem pass through the end cap through hole, and end is equipped with hydraulic stem disk, and the hydraulic stem disk is arranged on
In the cylinder body, the hydraulic stem disk offers hydraulic stem disk through hole, circumference and the cylinder body of the hydraulic stem disk
Interior wall seamless be slidably connected；First is formed between the cylinder end caps and the hydraulic stem disk and the side wall of the cylinder body
Cavity；Central cavity is formed between the hydraulic stem disk and the cylinder body bottom and the side wall of the cylinder body；
First cavity, the central cavity and the 4th cavity are filled with liquid.
2. main passive damping device as described in claim 1, it is characterised in that：It further includes
Motor, the hydraulic stem is hollow, and the motor is arranged in the hydraulic stem, and the motor is equipped with motor shaft；
Catch, the catch is arranged between the hydraulic stem disk and the cylinder body bottom and the catch passes through the motor shaft
It is connected with the motor, the motor can drive the catch to rotate, and the catch is compared with the hydraulic stem disk through hole
Position offers catch through hole, and the registration of the catch through hole and the hydraulic stem disk through hole is adjusted by the motor.
3. main passive damping device as claimed in claim 2, it is characterised in that：The catch through hole leads to the hydraulic stem disk
The size in hole is identical.
4. main passive damping device as claimed in claim 2, it is characterised in that：The catch is equipped with catch flange, the catch
Flange is arranged in the hydraulic stem.
5. main passive damping device as claimed in claim 4, it is characterised in that：Sliding bearing is arranged on the catch flange,
The outer wall of the sliding bearing and the interior wall seamless of the hydraulic stem are slidably connected.
6. main passive damping device as claimed in claim 2, it is characterised in that：The hydraulic stem is arranged on one end outside the cylinder body
Equipped with hydraulic pressure stem cover, the hydraulic pressure stem cover is equipped with the end cap connecting portion being attached with external equipment.
7. main passive damping device as claimed in claim 2, it is characterised in that：It further includes
Free-piston, the free-piston be arranged between the catch and the cylinder body bottom, the circumference of the free-piston with
The interior wall seamless of the cylinder body is slidably connected；
The second cavity is formed between the free-piston and the side wall of the catch and the cylinder body, is filled in second cavity
There is liquid；
The 3rd cavity, the 3rd cavity are formed between the free-piston and the cylinder body bottom and the side wall of the cylinder body
It is interior filled with air；
Bottom spring, the bottom spring be arranged on the 3rd cavity in, and the both ends of the bottom spring respectively with it is described from
It is connected by piston with the cylinder body bottom.
8. such as the main passive damping device of claim 1~7 any one of them, it is characterised in that：Further include inner spring, the interior bullet
Spring is sheathed on the hydraulic stem, and the inner spring is arranged between the cylinder end caps and the hydraulic stem disk.
9. such as the main passive damping device of claim 1~7 any one of them, it is characterised in that：It further includes
Adjusting nut, the adjusting nut is sheathed on the hydraulic stem and outside the cylinder body, the adjusting nut can edge
The hydraulic stem slides；
Outer spring, the outer spring are sheathed on the hydraulic stem and arranged between the cylinder end caps and the adjusting nuts.
10. such as the main passive damping device of claim 1~7 any one of them, it is characterised in that：The power cylinder bottom is additionally provided with
For the bottom connecting portion being attached with external equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710735617.1A CN108071730B (en) | 2017-08-24 | 2017-08-24 | Active and passive damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710735617.1A CN108071730B (en) | 2017-08-24 | 2017-08-24 | Active and passive damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108071730A true CN108071730A (en) | 2018-05-25 |
| CN108071730B CN108071730B (en) | 2020-10-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710735617.1A Active CN108071730B (en) | 2017-08-24 | 2017-08-24 | Active and passive damper |
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| CN108730397A (en) * | 2018-06-26 | 2018-11-02 | 海南大学 | A kind of air spring additional air chamber of variable volume |
| CN109486669A (en) * | 2018-12-30 | 2019-03-19 | 北京蓉山食品有限公司 | Thick chilli sauce installation for fermenting |
| CN111120568A (en) * | 2020-02-11 | 2020-05-08 | 焦彪彪 | Gas-liquid series variable damping shock absorber |
| CN111993098A (en) * | 2020-08-28 | 2020-11-27 | 芜湖熠康智能科技有限公司 | Sliding table with movable buffering function |
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| WO2010113636A1 (en) * | 2009-04-02 | 2010-10-07 | カヤバ工業株式会社 | Hydraulic cylinder |
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| CN111993098A (en) * | 2020-08-28 | 2020-11-27 | 芜湖熠康智能科技有限公司 | Sliding table with movable buffering function |
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| Publication number | Publication date |
|---|---|
| CN108071730B (en) | 2020-10-13 |
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