CN106594153A - Hydraulic damper with rigidity adjusting function - Google Patents
Hydraulic damper with rigidity adjusting function Download PDFInfo
- Publication number
- CN106594153A CN106594153A CN201710066041.4A CN201710066041A CN106594153A CN 106594153 A CN106594153 A CN 106594153A CN 201710066041 A CN201710066041 A CN 201710066041A CN 106594153 A CN106594153 A CN 106594153A
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- Prior art keywords
- piston
- reserve tank
- fuel reserve
- damper
- cylinder body
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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
- F16F9/32—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
- F16F9/3235—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
- 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
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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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
Abstract
The invention discloses a hydraulic damper with a rigidity adjusting function. The hydraulic damper comprises a right pin head (1), a right end cover (2), a cylinder body (3), a piston assembly (4), a piston rod (5), a left end cover (6), a left pin head (7), a first valve group (10), a second valve group (11), an oil storage tank assembly (14) and a plurality of oil ways. A rigidity compensation device is arranged on a piston of the hydraulic damper, the rigidity requirement of the hydraulic damper in the pulling direction is met by adjusting the structural rigidity of the hydraulic damper or replacing working oil, then the rigidity requirement of the hydraulic damper in the pressing direction is met by adjusting the rigidity compensation device arranged on the piston of the hydraulic damper, and thus the rigidity requirements of the hydraulic damper in the pulling and pressing directions are met. The hydraulic damper is simple in structure and reliable in working, the requirements of the hydraulic damper for rigidity adjustment in the pulling and pressing directions can be met, and the hydraulic damper has broad application prospects.
Description
Technical field
The present invention relates to a kind of hydraulic damper, and in particular to a kind of hydraulic damper with rigidity adjuster,
Belong to electric and field of electromechanical technology.
Background technology
At present, hydraulic damper is widely used in antivibration field of shock absorption, for common hydraulic damper, its rigidity
It is main to determine that the hydraulic damper of certain specification is once by the rigidity of structure of hydraulic damper and the aspect of rigidity two of work fluid
Design is completed, and is determined after work fluid, and its rigidity is also just determined substantially, by theory analysis and experiment, hydraulic pressure resistance
The rigidity in Buddhist nun's device tension and compression direction be it is inconsistent, it is universal for, hydraulic damper draws the rigidity in direction than pressing the rigidity in direction
Little a lot, this is its inherent characteristic.In certain some special occasions, the requirement to hydraulic damper rigidity is stricter, for
The requirement of hydraulic damper single direction rigidity, we can pass through the rigidity of structure of adjustment hydraulic damper or more change jobs
The method of fluid is realizing, but the rigidity in hydraulic damper tension and compression direction has the situation of strict demand, solves just very
It is difficult.In order to meet the rigidity requirement of hydraulic damper tension and compression twocouese, the present invention is adopted on hydraulic damper piston, if
Rigidity compensating device is put, hydraulic pressure resistance is met by the rigidity of structure for adjusting hydraulic damper or the method for changing work fluid
Buddhist nun's device draws the rigidity requirement in direction, then is arranged on the rigidity compensating device on hydraulic damper piston to meet hydraulic pressure by adjustment
Damper presses the rigidity requirement in direction, so as to meet the rigidity requirement of hydraulic damper tension and compression twocouese.
The content of the invention
It is an object of the invention to provide a kind of hydraulic damper with stiffness tuning function.
The technical solution used in the present invention is：A kind of hydraulic damper with stiffness tuning function, including right plunger, right-hand member
Lid, cylinder body, piston component, piston rod, left end cap, left plunger, the first valve group, the second valve group, oil storage box assembly and some logical oil
Road；Some logical oil circuits include the first logical oil circuit, the second logical oil circuit, threeway oil circuit and four-way oil circuit；
The piston component includes piston only, cover plate, mounting screw, compensating piston, compensation returning spring, the piston only
Right side central offer compensated cavity, the left bottom of compensated cavity offers spring accommodating chamber, sets on the left of the compensating piston
There is compensation returning spring seat, compensating piston black box is installed on the outer circle wall of compensating piston, compensating piston is together with compensation
Piston seal component is installed along with compensated cavity, and between compensating piston and compensation cavity wall good sealing, the compensation are formed
Returning spring is arranged in spring accommodating chamber, and the left side for compensating returning spring pushes against the left bottom of spring accommodating chamber, compensates back
It is sleeved on the right side of multiple spring on compensation returning spring seat, and pushes against the left side of compensating piston, offers in the middle part of the cover plate
Axially through compensation oil through, cover plate is securedly mounted to the right side of piston only by mounting screw, in compensation returning spring
In the presence of, the right side of compensating piston pushes against the left side of cover plate；
The upper left-hand of the cylinder body offers the damper left oil port of radial direction insertion, and right side offers the damper of radial direction insertion
Right oil port；The left end of the piston rod and piston component are formed and are fastenedly connected, and piston rod is installed along with cylinder together with piston component
In vivo, corresponding seal is installed between the excircle and inboard wall of cylinder block of piston component, piston rod and piston component are in cylinder body
Interior to realize axially-movable, piston component is divided into the left working chamber C of damper and the right working chamber of damper the inner chamber of cylinder body
D；Right installing hole B is offered in the middle part of the right plunger, right plunger and right end cap are integrally welded；The right end cap fastening is installed
Corresponding seal is installed between the inwall of the right side of cylinder body, right end cap and cylinder body；The left end cap is securedly mounted to cylinder
The left side of body, piston rod is passed from the intermediate throughholes of left end cap, between left end cap and the inwall of cylinder body and in the middle of left end cap
Corresponding seal is installed between through hole and the outer wall of piston rod；Right installing hole A, left pin are offered in the middle part of the left plunger
The left end of head and piston rod is formed and is fastenedly connected；
First valve group includes the first check valve and the first damping hole；Second valve group includes the second check valve and the second resistance
Buddhist nun hole；The oil storage box assembly includes fuel reserve tank cylinder barrel, fuel reserve tank piston and fuel reserve tank returning spring, and fuel reserve tank piston is arranged on
In fuel reserve tank cylinder barrel, respective seals, oil storage are installed between the outer circle wall of fuel reserve tank piston and the inwall of fuel reserve tank cylinder barrel
Case piston is divided into fuel reserve tank left chamber and fuel reserve tank right chamber the endoporus of fuel reserve tank cylinder barrel, and fuel reserve tank piston can be in fuel reserve tank cylinder
Axially-movable is realized in cylinder, fuel reserve tank returning spring is arranged in fuel reserve tank left chamber, and left end pushes against the left end cap of fuel reserve tank, right-hand member
Push against the left side of fuel reserve tank piston；The oil-in of second valve group is connected by the second logical oil circuit with damper right oil port,
The oil-out of the second valve group is connected by four-way oil circuit with fuel reserve tank right chamber；The oil-in of first valve group passes through first
Logical oil circuit is connected with damper left oil port, and the oil-out of the first valve group is by threeway oil circuit and four-way oil circuit and fuel reserve tank
Right chamber is connected；The left working chamber C of the damper, the right working chamber D of damper, fuel reserve tank right chamber, the first logical oil circuit, the second logical oil
Road, threeway oil circuit and four-way oil circuit are each filled with work fluid.
The present invention arranges rigidity compensating device using on hydraulic damper piston, first by adjusting hydraulic damper
The rigidity of structure or change work fluid method come meet hydraulic damper draw direction rigidity requirement, then by adjustment set
Put the rigidity compensating device on hydraulic damper piston to meet the rigidity requirement that hydraulic damper presses direction, so as to meet liquid
The rigidity requirement of pressure damper tension and compression twocouese.
The course of work of the rigidity compensating device on hydraulic damper piston is as follows：When left plunger relative to right plunger to the right
During motion, hydraulic damper forms the work of pressure direction.Right plunger drives piston rod and piston component to move right, in hydraulic damping
Device low-speed motion state, the first check valve of the first valve group is positive to be opened, and the second check valve of the second valve group does not have a locking, and second
Passage gaps are remained between inner elements of check valve and valve seat.Now, the work fluid one side in the right working chamber D of hydraulic damper
By damper right oil port, the second logical passage gaps between oil circuit, the second inner elements of check valve of the second valve group and valve seat and the
Positive the first check valve opened of two damping holes, four-way oil circuit, threeway oil circuit, the first valve group and the first damping hole, first
Logical oil circuit and damper right oil port are flowed into the left working chamber C of damper；On the other hand, it is unnecessary in the right working chamber D of hydraulic damper
Work fluid, by damper right oil port, the second logical stream between oil circuit, the second inner elements of check valve of the second valve group and valve seat
Logical gap and the second damping hole, four-way oil circuit are flowed in fuel reserve tank right chamber, fuel reserve tank piston overpowers fuel reserve tank returning spring
Active force be moved to the left.In the quick motion state of hydraulic damper, the first check valve of the first valve group is positive to be opened, the second valve
Second check valve of group produces locking, and the passage gaps between the second inner elements of check valve and valve seat are closed.Now, hydraulic damper
Work fluid in right working chamber D on the one hand by damper right oil port, the second logical oil circuit, the second damping hole of the second valve group,
Positive the first check valve opened of four-way oil circuit, threeway oil circuit, the first valve group and the first damping hole, the first logical oil circuit and resistance
Buddhist nun's device right oil port is flowed into the left working chamber C of damper；On the other hand, work fluid unnecessary in the right working chamber D of hydraulic damper,
Fuel reserve tank right chamber is flowed into by damper right oil port, the second logical oil circuit, the second damping hole of the second valve group, four-way oil circuit
Interior, the active force of fuel reserve tank piston overpowers fuel reserve tank returning spring is moved to the left；Because the second check valve of the second valve group is produced
Locking, in the presence of loading outside, the pressure rise of work fluid in the right working chamber D of hydraulic damper, it is by cover plate middle part
Compensation oil through enter into the right side of compensating piston, and act on compensating piston, overcome the active force of compensation returning spring,
Compensating piston is promoted to be moved to the left in compensated cavity, work fluid is by the benefit in the middle part of cover plate in the right working chamber D of hydraulic damper
Repay in the compensation cavity space that oil through is entered on the right side of compensating piston.Due to some work in the right working chamber D of hydraulic damper
Being flowed in compensated cavity as fluid, equivalent under identical working condition, increased hydraulic damper piston direction is being pressed
Displacement, so as to reduce hydraulic damper pressure direction rigidity.Lived by adjusting compensated cavity axial length or compensation
The thickness of plug, can adjust from the right working chamber D of hydraulic damper and be flowed in compensated cavity the volume of the fluid that works, and adjust hydraulic pressure
Damper finally meets the rigidity requirement of hydraulic damper tension and compression twocouese in the rigidity in pressure direction.
First valve group may be mounted on cylinder body or cylinder body（3）Outward.
Second valve group may be mounted on cylinder body or cylinder body（3）Outward.
The relation of the oil storage box assembly and hydraulic damper body, oil storage box assembly can be independently mounted at outside cylinder body
Portion, is connected by logical oil circuit with valve group and the left working chamber C of damper, the right working chamber D of damper, forms the oil storage of outlet structure
Case, it is also possible to which annular is sleeved on outer wall of cylinder block, by logical oil circuit and valve group and the left working chamber C of damper, the right working chamber D of damper
Connection, forms the fuel reserve tank of sleeve structure, can also divide and arrange into several small-sized fuel reserve tanks, and circumference uniform distribution leads in cylinder wall
Cross logical oil circuit to be connected with valve group and the left working chamber C of damper, the right working chamber D of damper, form the fuel reserve tank of row structure.
The invention has the beneficial effects as follows：
The present invention arranges rigidity compensating device using on hydraulic damper piston, firm by the structure for adjusting hydraulic damper
Degree or change work fluid method come meet hydraulic damper draw direction rigidity requirement, then by adjustment be arranged on hydraulic pressure
Rigidity compensating device in damper piston come meet hydraulic damper press direction rigidity requirement, so as to meet hydraulic damper
The rigidity requirement of tension and compression twocouese.
Description of the drawings
The embodiment for being given below in conjunction with the accompanying drawings is described in more detail to the present invention.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial enlarged drawing of E in Fig. 1.
Specific embodiment
As shown in Figure 1 and Figure 2, a kind of hydraulic damper with stiffness tuning function, including right plunger 1, right end cap 2, cylinder body
3rd, piston component 4, piston rod 5, left end cap 6, left plunger 7, the first valve group 10, the second valve group 11, oil storage box assembly 14 and some
Logical oil circuit；Some logical oil circuits include that the first logical oil circuit 8, second leads to oil circuit 9, threeway oil circuit 12 and four-way oil circuit 13；
The piston component 4 includes piston only 4-1, cover plate 4-2, mounting screw 4-3, compensating piston 4-5, compensation returning spring
The right side central of 4-10, the piston only 4-1 offers compensated cavity 4-6, and the left bottom of compensated cavity 4-6 offers spring appearance
Receive chamber 4-8, compensation returning spring seat 4-7 is provided with the left of the compensating piston 4-5, pacify on the outer circle wall of compensating piston 4-5
Equipped with compensating piston black box 4-8, compensating piston 4-5 is installed along with compensated cavity 4- together with compensating piston black box 4-8
Good sealing is formed between 6, compensating piston 4-5 and compensated cavity 4-6 inwalls, the compensation returning spring 4-10 is arranged on spring
In accommodating chamber 4-8, the left side for compensating returning spring 4-10 pushes against the left bottom of spring accommodating chamber 4-8, compensates returning spring 4-
10 right side is sleeved on compensation returning spring seat 4-7, and pushes against the left side of compensating piston 4-5, is opened in the middle part of the cover plate 4-2
Be provided with axially through compensation oil through 4-4, cover plate 4-2 is securedly mounted to the right side of piston only 4-1 by mounting screw 4-3
Side, in the presence of compensation returning spring 4-10, the right side of compensating piston 4-5 pushes against the left side of cover plate 4-2；
The upper left-hand of the cylinder body 3 offers the damper left oil port 3-1 of radial direction insertion, and right side offers the resistance of radial direction insertion
Buddhist nun device right oil port 3-2；The left end of the piston rod 5 and piston component 4 are formed and are fastenedly connected, and piston rod 5 is together with piston component 4 one
Rise and be arranged in cylinder body 3, corresponding seal, the He of piston rod 5 are installed between the excircle and the inwall of cylinder body 3 of piston component 4
Piston component 4 can realize axially-movable in cylinder body 3, and piston component 4 is divided into the left working chamber of damper the inner chamber of cylinder body 3
The C and right working chamber D of damper；The middle part of the right plunger 1 offers right installing hole B, and right plunger 1 and right end cap 2 are welded into one
Body；The right end cap 2 is securedly mounted to be provided with corresponding sealing between the inwall on the right side of cylinder body 3, right end cap 2 and cylinder body 3
Part；The left end cap 6 is securedly mounted to the left side of cylinder body 3, and piston rod 5 is passed from the intermediate throughholes of left end cap 6, left end cap 6
Corresponding seal is installed and the inwall of cylinder body 3 between and between the outer wall of the intermediate throughholes of left end cap 6 and piston rod 5；Institute
State left plunger 7 middle part offer right installing hole A, left plunger 7 and piston rod 5 left end formed be fastenedly connected；
First valve group 10 includes the first check valve 10-1 and the first damping hole 10-2；Second valve group 11 includes that second is single
To valve 11-1 and the second damping hole 11-2；The oil storage box assembly 14 include fuel reserve tank cylinder barrel 14-3, fuel reserve tank piston 14-1 and
Fuel reserve tank returning spring 14-2, fuel reserve tank piston 14-1 are arranged in fuel reserve tank cylinder barrel 14-3, and fuel reserve tank piston 14-1's is cylindrical
Respective seals are installed, fuel reserve tank piston 14-1 is fuel reserve tank cylinder barrel 14-3 between the inwall of perisporium and fuel reserve tank cylinder barrel 14-3
Endoporus be divided into fuel reserve tank left chamber 14-5 and fuel reserve tank right chamber 14-4, fuel reserve tank piston 14-1 can be in fuel reserve tank cylinder barrel 14-3
Axially-movable is inside realized, fuel reserve tank returning spring 14-2 is arranged in fuel reserve tank left chamber 14-5, and left end pushes against the left end of fuel reserve tank
Lid, right-hand member pushes against the left side of fuel reserve tank piston 14-1；The oil-in of second valve group 11 is by the second logical oil circuit 9 and damper
Right oil port 3-2 is connected, and the oil-out of the second valve group 11 is connected by four-way oil circuit 13 with fuel reserve tank right chamber 14-4；It is described
The oil-in of the first valve group 10 is connected by the first logical oil circuit 8 with damper left oil port 3-1, and the oil-out of the first valve group 10 leads to
Cross threeway oil circuit 12 to be connected with four-way oil circuit 13 and fuel reserve tank right chamber 14-4；The left working chamber C of the damper, damper
Right working chamber D, fuel reserve tank right chamber 14-4, the logical oil circuit 9, threeway oil circuit 12 of the first logical oil circuit 8, second and four-way oil circuit 13 are equal
Full of work fluid.
The present invention arranges rigidity compensating device using on hydraulic damper piston, first by adjusting hydraulic damper
The rigidity of structure or change work fluid method come meet hydraulic damper draw direction rigidity requirement, then by adjustment set
Put the rigidity compensating device on hydraulic damper piston to meet the rigidity requirement that hydraulic damper presses direction, so as to meet liquid
The rigidity requirement of pressure damper tension and compression twocouese.
The course of work of the rigidity compensating device on hydraulic damper piston is as follows：When left plunger 7 relative to right plunger 1 to
During right motion, hydraulic damper forms the work of pressure direction.Right plunger 1 drives piston rod 5 and piston component 4 to move right, in liquid
Pressure damper low-speed motion state, the first check valve 10-1 of the first valve group 10 is positive to be opened, and the second of the second valve group 11 is unidirectional
Valve 11-1 does not have locking, and between the second check valve 11-1 valve elements and valve seat passage gaps are remained with.Now, the right work of hydraulic damper
Make the work fluid in the D of chamber on the one hand by damper right oil port 3-2, the second logical oil circuit 9, the second check valve of the second valve group 11
Passage gaps and the second damping hole 11-2, four-way oil circuit 13, threeway oil circuit 12, the first valve between 11-1 valve elements and valve seat
Positive the first check valve 10-1 for opening and the first damping hole 10-2 of group 10, the first logical oil circuit 8 and damper right oil port 3-2 are flowed into
To the left working chamber C of damper；On the other hand, work fluid unnecessary in the right working chamber D of hydraulic damper, by the right oil of damper
Mouth 3-2, the second logical passage gaps between oil circuit 9, the second check valve 11-1 valve elements of the second valve group 11 and valve seat and the second resistance
Buddhist nun hole 11-2, four-way oil circuit 13 are flowed in fuel reserve tank right chamber 14-4, and fuel reserve tank piston 14-1 overcomes fuel reserve tank returning spring
The active force of 14-2 is moved to the left.In the quick motion state of hydraulic damper, the first check valve 10-1 of the first valve group 10 is positive
Open, the second check valve 11-1 of the second valve group 11 produces locking, between the circulation between the second check valve 11-1 valve elements and valve seat
Gap is closed.Now, the work fluid in the right working chamber D of hydraulic damper is on the one hand by damper right oil port 3-2, the second logical oil
Road 9, the second damping hole 11-2 of the second valve group 11, four-way oil circuit 13, threeway oil circuit 12, the forward direction of the first valve group 10 are opened
First check valve 10-1 and the first damping hole 10-2, the first logical oil circuit 8 and damper right oil port 3-2 are flowed into the left work of damper
Chamber C；On the other hand, work fluid unnecessary in the right working chamber D of hydraulic damper, by damper right oil port 3-2, the second logical oil
Road 9, the second damping hole 11-2 of the second valve group 11, four-way oil circuit 13 are flowed in fuel reserve tank right chamber 14-4, fuel reserve tank piston
14-1 overcomes the active force of fuel reserve tank returning spring 14-2 to be moved to the left；Because the second check valve 11-1 of the second valve group 11 is produced
Locking, in the presence of loading outside, the pressure rise of work fluid in the right working chamber D of hydraulic damper, it passes through in cover plate 4-2
The compensation oil through 4-4 in portion enters into the right side of compensating piston 4-5, and acts on compensating piston 4-5, overcomes compensation to reply bullet
The active force of spring 4-10, promotes compensating piston 4-5 to be moved to the left in compensated cavity 4-6, work in the right working chamber D of hydraulic damper
In the compensated cavity 4-6 spaces that fluid is entered on the right side of compensating piston 4-5 by the compensation oil through 4-4 in the middle part of cover plate 4-2.Due to
Some work fluid has been flowed in compensated cavity 4-6 in the right working chamber D of hydraulic damper, equivalent in identical work shape
Under state, displacement of the hydraulic damper piston in pressure direction is increased, so as to reduce rigidity of the hydraulic damper in pressure direction.
By the thickness for adjusting compensated cavity 4-6 axial lengths or compensating piston 4-5, working chamber D right from hydraulic damper can be adjusted
The volume of work fluid in compensated cavity 4-6 has been flowed into, rigidity of the hydraulic damper in pressure direction has been adjusted, hydraulic pressure resistance has finally been met
The rigidity requirement of Buddhist nun's device tension and compression twocouese.
First valve group 10 may be mounted on cylinder body 3 or cylinder body（3）Outward.
Second valve group 11 may be mounted on cylinder body 3 or cylinder body（3）Outward.
The relation of oil storage box assembly 14 and hydraulic damper body, oil storage box assembly 14 can be independently mounted at outside cylinder body 3
Portion, is connected by logical oil circuit with valve group and the left working chamber C of damper, the right working chamber D of damper, forms the oil storage of outlet structure
Case, it is also possible to which annular is sleeved on the outer wall of cylinder body 3, by logical oil circuit and valve group and the left working chamber C of damper, the right working chamber of damper
D connect, formed sleeve structure fuel reserve tank, can also divide and arrange into several small-sized fuel reserve tanks, circumference uniform distribution in the wall of cylinder body 3,
It is connected with valve group and the left working chamber C of damper, the right working chamber D of damper by logical oil circuit, forms the fuel reserve tank of row structure.
The invention has the beneficial effects as follows：
The present invention arranges rigidity compensating device using on hydraulic damper piston, firm by the structure for adjusting hydraulic damper
Degree or change work fluid method come meet hydraulic damper draw direction rigidity requirement, then by adjustment be arranged on hydraulic pressure
Rigidity compensating device in damper piston come meet hydraulic damper press direction rigidity requirement, so as to meet hydraulic damper
The rigidity requirement of tension and compression twocouese.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of hydraulic damper with stiffness tuning function, it is characterised in that：Including right plunger（1）, right end cap（2）, cylinder body
（3）, piston component（4）, piston rod（5）, left end cap（6）, left plunger（7）, the first valve group（10）, the second valve group（11）, oil storage
Box assembly（14）And some logical oil circuits；Some logical oil circuits include the first logical oil circuit（8）, the second logical oil circuit（9）, threeway oil
Road（12）With four-way oil circuit（13）；
The piston component（4）Including piston only（4-1）, cover plate（4-2）, mounting screw（4-3）, compensating piston（4-5）, mend
Repay returning spring（4-10）, the piston only（4-1）Right side central offer compensated cavity（4-6）, compensated cavity（4-6）A left side
Side bottom offers spring accommodating chamber（4-8）, the compensating piston（4-5）Left side be provided with compensation returning spring seat（4-7）, mend
Repay piston（4-5）Outer circle wall on compensating piston black box is installed（4-8）, compensating piston（4-5）Together with compensating piston
Black box（4-8）It is installed along with compensated cavity（4-6）, compensating piston（4-5）And compensated cavity（4-6）Formed between inwall close
Envelope, the compensation returning spring（4-10）Installed in spring accommodating chamber（4-8）It is interior, compensate returning spring（4-10）Left side push against
Spring accommodating chamber（4-8）Left bottom, compensate returning spring（4-10）Right side be sleeved on compensation returning spring seat（4-7）
On, and push against compensating piston（4-5）Left side, the cover plate（4-2）Middle part offer axially through compensation oil through（4-
4）, cover plate（4-2）By mounting screw（4-3）It is securedly mounted to piston only（4-1）Right side, compensation returning spring（4-
10）In the presence of, compensating piston（4-5）Right side push against cover plate（4-2）Left side；
The cylinder body（3）Upper left-hand offer the damper left oil port of radial direction insertion（3-1）, right side offers radial direction insertion
Damper right oil port（3-2）；The piston rod（5）Left end and piston component（4）Formation is fastenedly connected, piston rod（5）Even
Same piston component（4）It is installed along with cylinder body（3）It is interior, piston component（4）Excircle and cylinder body（3）Phase is installed between inwall
The seal answered, piston rod（5）And piston component（4）In cylinder body（3）It is interior to realize axially-movable, piston component（4）Cylinder
Body（3）Inner chamber be divided into the left working chamber C of the damper and right working chamber D of damper；The right plunger（1）Middle part offer the right side
Installing hole B, right plunger（1）And right end cap（2）It is integrally welded；The right end cap（2）It is securedly mounted to cylinder body（3）Right side,
Right end cap（2）And cylinder body（3）Inwall between corresponding seal is installed；The left end cap（6）It is securedly mounted to cylinder body（3）
Left side, piston rod（5）From left end cap（6）Intermediate throughholes in pass, left end cap（6）And cylinder body（3）Inwall between and
Left end cap（6）Intermediate throughholes and piston rod（5）Outer wall between corresponding seal is installed；The left plunger（7）Middle part
Offer right installing hole A, left plunger（7）And piston rod（5）Left end formed be fastenedly connected；
First valve group（10）Including the first check valve（10-1）With the first damping hole（10-2）；Second valve group（11）Bag
Include the second check valve（11-1）With the second damping hole（11-2）；The oil storage box assembly（14）Including fuel reserve tank cylinder barrel（14-3）、
Fuel reserve tank piston（14-1）With fuel reserve tank returning spring（14-2）, fuel reserve tank piston（14-1）Installed in fuel reserve tank cylinder barrel（14-3）
It is interior, fuel reserve tank piston（14-1）Outer circle wall and fuel reserve tank cylinder barrel（14-3）Inwall between respective seals are installed, store up
Fuel tank piston（14-1）Fuel reserve tank cylinder barrel（14-3）Endoporus be divided into fuel reserve tank left chamber（14-5）With fuel reserve tank right chamber（14-
4）, fuel reserve tank piston（14-1）Can be in fuel reserve tank cylinder barrel（14-3）Inside realize axially-movable, fuel reserve tank returning spring（14-2）
Installed in fuel reserve tank left chamber（14-5）Interior, left end pushes against the left end cap of fuel reserve tank, and right-hand member pushes against fuel reserve tank piston（14-1）A left side
Side；Second valve group（11）Oil-in by the second logical oil circuit（9）With damper right oil port（3-2）It is connected, the second valve
Group（11）Oil-out pass through four-way oil circuit（13）With fuel reserve tank right chamber（14-4）It is connected；First valve group（10）Enter
Hydraulic fluid port is by the first logical oil circuit（8）With damper left oil port（3-1）It is connected, the first valve group（10）Oil-out pass through threeway
Oil circuit（12）With four-way oil circuit（13）And fuel reserve tank right chamber（14-4）It is connected；The left working chamber C of the damper, damper are right
Working chamber D, fuel reserve tank right chamber（14-4）, the first logical oil circuit（8）, the second logical oil circuit（9）, threeway oil circuit（12）And four-way oil
Road（13）It is each filled with work fluid.
2. a kind of hydraulic damper with stiffness tuning function according to claim 1, it is characterised in that：First valve
Group（10）Installed in cylinder body（3）Upper or cylinder body（3）Outward.
3. a kind of hydraulic damper with stiffness tuning function according to claim 1, it is characterised in that：Second valve
Group（11）Installed in cylinder body（3）Upper or cylinder body（3）Outward.
4. a kind of hydraulic damper with stiffness tuning function according to claim 1, it is characterised in that：The fuel reserve tank
Component（14）Installed in cylinder body（3）Outside, is connected by logical oil circuit with valve group and the right working chamber D of the left working chamber C of damper, damper
Connect, form the fuel reserve tank of outlet structure.
5. a kind of hydraulic damper with stiffness tuning function according to claim 1, it is characterised in that：The fuel reserve tank
Component（14）Annular is sleeved on cylinder body（3）Outer wall, by logical oil circuit and valve group and the left working chamber C of damper, the right work of damper
Chamber D connects, and forms the fuel reserve tank of sleeve structure.
6. a kind of hydraulic damper with stiffness tuning function according to claim 1, it is characterised in that：The fuel reserve tank
Component（14）Divide and arrange into several small-sized fuel reserve tanks, circumference uniform distribution is in cylinder body（3）In wall, by logical oil circuit and valve group and damper
The right working chamber D connections of left working chamber C, damper, form the fuel reserve tank of row structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710066041.4A CN106594153B (en) | 2017-02-06 | 2017-02-06 | A kind of hydraulic damper with stiffness tuning function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710066041.4A CN106594153B (en) | 2017-02-06 | 2017-02-06 | A kind of hydraulic damper with stiffness tuning function |
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| Publication Number | Publication Date |
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| CN106594153A true CN106594153A (en) | 2017-04-26 |
| CN106594153B CN106594153B (en) | 2018-05-18 |
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| CN201710066041.4A Active CN106594153B (en) | 2017-02-06 | 2017-02-06 | A kind of hydraulic damper with stiffness tuning function |
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| CN108953462A (en) * | 2018-07-12 | 2018-12-07 | 河海大学常州校区 | A kind of in-line arrangement hydraulic damper |
| CN108953461A (en) * | 2018-07-12 | 2018-12-07 | 河海大学常州校区 | A kind of in-line arrangement hydraulic damper |
| CN111188865A (en) * | 2020-02-17 | 2020-05-22 | 常州机电职业技术学院 | Hydraulic damper with rigidity adjusting device |
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| WO2013143070A1 (en) * | 2012-03-27 | 2013-10-03 | Beijingwest Industries Co., Ltd. | Hydraulic damper with adjustable rebound valve assembly |
| CN104204602A (en) * | 2012-03-27 | 2014-12-10 | 北京京西重工有限公司 | Amplitude sensitive hydraulic damper |
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| CN107559370A (en) * | 2017-09-28 | 2018-01-09 | 浙江路得坦摩汽车部件股份有限公司 | A kind of one-way circulation oil path valve system |
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| CN111188865B (en) * | 2020-02-17 | 2021-08-20 | 常州机电职业技术学院 | Hydraulic damper with rigidity adjusting device |
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|---|---|
| CN106594153B (en) | 2018-05-18 |
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