CN110425245A - A kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping - Google Patents
A kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping Download PDFInfo
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- CN110425245A CN110425245A CN201910661828.4A CN201910661828A CN110425245A CN 110425245 A CN110425245 A CN 110425245A CN 201910661828 A CN201910661828 A CN 201910661828A CN 110425245 A CN110425245 A CN 110425245A
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- pedestal
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- 238000013016 damping Methods 0.000 title claims abstract description 93
- 238000005096 rolling process Methods 0.000 title claims abstract description 31
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 119
- 230000006835 compression Effects 0.000 claims abstract description 74
- 238000007906 compression Methods 0.000 claims abstract description 74
- 210000000635 valve cell Anatomy 0.000 claims abstract description 62
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 47
- 239000000428 dust Substances 0.000 claims description 27
- 239000000346 nonvolatile oil Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 description 8
- 230000035939 shock Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000003981 vehicle Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/3405—Throttling passages in or on piston body, e.g. slots
-
- 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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of rolling stock half active oil-pressure dampers of double oil circuits switching regulator adaptive damping, including cylinder component and the dustproof cover component for being slidably mounted on cylinder component upper end；Cylinder component includes the working cylinder of internal filling hydraulic oil；Dustproof cover component includes the piston rod that sliding is threaded through in working cylinder, the orifice valve composition for being mounted on piston rod inner end and being connected to piston both ends working cylinder compression chamber and elongated cavity on piston with the piston that be bonded of the work inside wall of cylinder and being installed in；Orifice valve composition includes forward mounted multiple positive damping valve cells, and the multiple reverse damping valve cells inversely installed.Damper of the invention, by being symmetrical arranged orifice valve on piston, make oil-pressure damper that there is double oil circuits structure in Compression and Expansion, to guarantee that oil-pressure damper Dynamic Damp Characteristics and dynamic rate characteristic have symmetry characteristic, to guarantee high speed motor car driving safety in use.
Description
Technical field
The present invention relates to a kind of damper more particularly to a kind of half actives of double oil circuits switching regulator adaptive damping of rolling stock
Oil-pressure damper belongs to rolling stock dampening apparatus field.
Background technique
With the rise of Leap-forward Development of Railway and urban track traffic, the demand suddenly poly- increasing of rolling stock, subway,
Oil-pressure damper is as important zero for rolling stock of decaying, Subway Vibration and raising vehicle smoothness and comfort
Part, demand increasingly increase, while higher to the performance requirement of damper product, also proposed more to the assembling of damper product
High requirement.
Firstly, the oil-pressure damper with half active characteristic belongs to greatly single oil channel structures characteristic in structure at present, i.e.,
Compression and Expansion generates damping characteristic by a single orifice valve, due to single oil channel structures oil-pressure damper Dynamic Damp Characteristics
And dynamic rate characteristic has very big asymmetrical characteristic, in rolling stock use process especially high speed motor car use process
In, asymmetric dynamic characteristic can have an impact the dynamic performance of vehicle, to generate security risk.Secondly, traditional
Rolling stock with oil-pressure damper be a kind of passive-type damper, passively export a certain size in one timing of Compression and Expansion speed
Damping characteristic, damping characteristic can not be according to different road conditions, and situations such as running velocity size is converted.Finally,
Rolling stock generally requires damping force size of the oil-pressure damper with very little when crossing curve, to protect wheel rim relative to railway
Abrasion, conventional passive oil-pressure damper also cannot achieve this function.
Summary of the invention
In order to solve problem above, the object of the present invention is to provide a kind of rolling stock double oil circuits switching regulator adaptive dampings
Half active oil-pressure damper makes oil-pressure damper have double oil in Compression and Expansion by being symmetrical arranged orifice valve on piston
Line structure, to guarantee that oil-pressure damper Dynamic Damp Characteristics and dynamic rate characteristic have symmetry characteristic, to guarantee high quick-action
Vehicle driving safety in use；By being provided with plug-in switch valve, the damping characteristic of damper can be converted, in railway
Vehicle protects abrasion of the wheel rim relative to railway when crossing curve.
In order to achieve the goal above, the technical solution adopted by the present invention:
A kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping, including cylinder component and sliding
It is mounted on the dustproof cover component of cylinder component upper end；
The cylinder component includes the working cylinder of internal filling hydraulic oil, and the working cylinder includes compression chamber and elongated cavity；
The dustproof cover component includes sliding the piston rod being threaded through in the working cylinder, being mounted on the piston rod inner end
And with the piston that be bonded of the work inside wall of cylinder and it is installed in the damping valve group of connection piston two sides compression chamber and elongated cavity on piston
At；
The orifice valve composition includes forward mounted multiple positive damping valve cells, and is inversely installed multiple reverse
Valve cell is damped, the multiple positive damping valve cell and multiple reverse damping valve cells are symmetrical along piston axis.
In the present invention, the compression chamber and stretching of forward direction damping valve cell and the reverse damping equal unilaterally connected working cylinder of valve cell
Chamber, when piston rod compresses, hydraulic oil enters elongated cavity through reverse damping valve cell from compression chamber；When piston rod stretches, hydraulic oil
Enter compression chamber from elongated cavity through forward direction damping valve cell.Forward direction damping valve cell and reverse damping valve cell are along piston axis
It is symmetrical, make oil-pressure damper Dynamic Damp Characteristics and dynamic rate characteristic that there is symmetry characteristic, to guarantee that high speed motor car exists
Driving safety in use process, solves in the prior art that compression chamber is connected to elongated cavity by a single orifice valve, causes
Make damper Dynamic Damp Characteristics and dynamic rate characteristic that there is asymmetrical characteristic, caused by security hidden trouble.
Further, the cylinder component further includes the pedestal and guide holder for closing the working cylinder left and right ends, institute
Piston rod sliding is stated to be threaded through in the guide holder；It is respectively arranged in the pedestal and guide holder and is connected to the compression chamber and drawing
The pedestal for stretching chamber leads to oil circuit and guide holder leads to oil circuit, is equipped between pedestal and guide holder and is connected to the logical oil circuit of the pedestal and guide holder
The oil pipe of logical oil circuit, the oil pipe are located on the outside of the working cylinder.
In the present invention, for being supported to damper, guide holder is used to be oriented to piston rod and seal pedestal, makes in it
The piston being bonded with the work inside wall of cylinder is held to slide in working cylinder along working cylinder inner sidewall.The compression chamber and elongated cavity of working cylinder
Between, it can be connected to first is that can be made up of the orifice valve on working cylinder inner piston by two oil communications, be used for railcar
It is used when normally travel；Second is that can be connected to by the oil pipe on the outside of working cylinder, use when crossing curve for rolling stock.
Because rolling stock cross curve when, generally require oil-pressure damper have very little damping characteristic, with protect wheel rim relative to
The abrasion of railway；And when by the composition connection of inside orifice valve, damper can be made to generate biggish damping force, pass through the logical of outside
When oil pipe is connected to, compression chamber is directly connected to elongated cavity, can generate the damping force of very little.
Further, the pedestal leads to oil circuit, guide holder leads on the oil circuit that oil circuit and oil pipe are constituted, reception is installed
The plug-in switch valve of external signal control opening and closing degree.By being provided with plug-in switch valve, external signal is received, work is controlled
Make the degree and closing that oil circuit is opened on the outside of cylinder, and then control the flow by hydraulic oil in oil pipe, to make damper
Damping force is decreased to desired damping force, reaches the requirement for adjusting resistance of shock absorber characteristic.
Further, being equipped with oil drum on the outside of the working cylinder, the oil pipe is located in the oil drum, the bottom
Bottom valve is equipped between seat and the compression chamber of working cylinder；Fixed bottom valve is installed on the bottom valve and to be connected to the compression chamber and pedestal logical
The bottom valve damping valve cell of compression chamber described in the fixed oil pipe of the pedestal of oil circuit, multiple unilaterally connecteds and oil drum and unidirectional
It is connected to the check valve of the oil drum and compression chamber.
In the present invention, hydraulic oil is stored in oil drum, to carry out the exchange of working cylinder internal hydraulic pressure oil, storage is due to work
Cylinder inner piston rod volume increases hydraulic oil be discharged, and makes up since working cylinder inner piston rod volume reduces required compensation
Hydraulic oil.Bottom valve is fixed on the base by the fixed oil pipe of pedestal, and is connected to compression chamber and the logical oil of pedestal by the aperture in it
Road, in order to be connected to oil pipe.Compression chamber damps valve cell by bottom valve with oil drum and is connected to check valve, bottom valve orifice valve
Unit and check valve are in parallel, equal unilaterally connected, and hydraulic oil enters in compression chamber from oil drum through check valve when stretching, liquid when compression
Pressure oil enters in oil drum from compression chamber through bottom valve damping valve cell.
Further, the damping valve cell of positive damping valve cell, reverse damping valve cell and bottom valve damping valve cell,
It include that the compressed spring set is pushed up in orifice valve, the valve bonnet of orifice valve side and the orifice valve other side.In the present invention, working cylinder
Compression chamber and elongated cavity and compression chamber and oil drum pass through damping valve cell unilaterally connected, in order to oil liquid exchange, generate
Damping force.
Further, the dustproof cover component further includes dust cover and dust guard holder, the dust cover is located at the work
On the outside of stopper rod, dust cover one end is set on the outside of the oil drum, and the other end is fixedly connected with the dust guard holder, the piston rod
Outer end is fixedly connected with the dust guard holder.Dust cover is used for the dustproof cover component proofing dust and protecting to sliding.
Further, the pedestal and dust guard holder outer end are respectively connected with rubber nodal point, for damper to be mounted on
It needs on the rolling stock of vibration damping.
Further, the positive damping valve cell and reverse damping valve cell are mounted on two.
Beneficial effects of the present invention:
Damper provided by the invention, piston are equipped with symmetrical positive damping valve cell and reverse orifice valve list
Member makes oil-pressure damper have double oil circuits structure in Compression and Expansion, to guarantee oil-pressure damper Dynamic Damp Characteristics and move
There is state stiffness characteristics symmetry characteristic to solve and press in the prior art to guarantee high speed motor car driving safety in use
Contracting chamber is connected to elongated cavity by a single orifice valve, and damper Dynamic Damp Characteristics and dynamic rate characteristic is caused to have
Asymmetrical characteristic, caused by security hidden trouble.
Damper provided by the invention between working cylinder compression chamber and elongated cavity, can pass through the orifice valve on the inside of working cylinder
Two oil communications of oil pipe of composition and outside, when being connected to by the oil pipe in outside, compression chamber is directly connected to elongated cavity,
Guarantee rolling stock when crossing curve, damper generates the damping force of very little, to protect abrasion of the wheel rim relative to railway.
Damper provided by the invention makes damper in tensile speed by controlling the opening and closing degree of plug-in switch valve
One timing, can export different size of damping characteristic, damping characteristic can be big according to different road conditions, running velocity
Situations such as small, is converted, and the requirement for adjusting resistance of shock absorber characteristic is reached.
Detailed description of the invention
Fig. 1 is cross-sectional view of the invention；
Fig. 2 is explosive view of the invention；
Fig. 3 is the explosive view that orifice valve composition is installed on piston of the invention；
In figure: 1, cylinder component；11, working cylinder；111, compression chamber；112, elongated cavity；12, pedestal；121, the logical oil of pedestal
Road；13, guide holder；131, guide holder leads to oil circuit；14, oil pipe；15, plug-in switch valve；16, oil drum；17, bottom valve；18,
Pedestal fixes oil pipe；2, dustproof cover component；21, piston rod；22, piston；23, orifice valve forms；24, dust cover；25, dust-proof
Cover seat；3, valve cell is damped；31, orifice valve；32, valve bonnet；33, compressed spring；4, rubber nodal point.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made into one with reference to the accompanying drawing
Step illustrates.In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " is set
Be equipped with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1
A kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping, as shown in Figs. 1-2, including oil
Cylinder component 1 and the dustproof cover component 2 for being slidably mounted on 1 upper end of cylinder component.
Cylinder component 1 includes the working cylinder 11 of internal filling hydraulic oil；Working cylinder 11 includes compression chamber 111 and elongated cavity
112, the cavity of the direction of motion in working cylinder 11 of piston 22 when compression chamber 111 is shock absorbers compression, elongated cavity 112 is damper
The cavity of the direction of motion in working cylinder 11 of piston 22 when stretching.
Dustproof cover component 2 include sliding be threaded through in working cylinder 11 piston rod 21, be mounted on 21 inner end of piston rod and with
The piston 22 of 11 inner wall of working cylinder fitting and installing are connected to 22 two sides compression chamber 111 of piston and elongated cavity 112 on the piston 22
Orifice valve composition 23；Working cylinder 11 is divided to for two cavitys by piston 22, is compression chamber 111 on the left of piston 22, and right side is to stretch
Chamber 112.
Orifice valve composition 23 includes forward mounted two positive damping valve cells, and the two reverse resistances inversely installed
Buddhist nun's valve cell, two positive damping valve cells and two reverse damping valve cells are distributed along 22 axisymmetrical of piston.
When specifically used, when damper stretches, hydraulic oil is from elongated cavity 112 through the positive damping valve cell on piston 22
Into compression chamber 111；When shock absorbers compression, hydraulic oil enters drawing through the reverse damping valve cell on piston 22 from compression chamber 111
Stretch chamber 112.Forward direction damping valve cell and reverse damping valve cell are distributed along 22 axisymmetrical of piston, make oil-pressure damper dynamic
Damping characteristic and dynamic rate characteristic have symmetry characteristic, to guarantee high speed motor car driving safety in use.
Embodiment 2
The present embodiment is improved further on the basis of embodiment 1, and as shown in Figs. 1-2, cylinder component 1 further includes envelope
The pedestal 12 and guide holder 13 of 11 left and right ends of working cylinder are closed, the sliding of piston rod 21 is threaded through in guide holder 13；It pedestal 12 and leads
The pedestal that connection compression chamber 111 and elongated cavity 112 are respectively arranged with into seat 13 leads to oil circuit 121 and the logical oil circuit 131 of guide holder, bottom
Seat 12 with the oil pipe 14 for be connected to pedestal and leading to the logical oil circuit 131 of oil circuit 121 and guide holder is installed between guide holder 13, oil pipe 14
In 11 outside of working cylinder.
The damper of the present embodiment, in rolling stock normally travel, 11 compression chamber 111 of working cylinder and elongated cavity 112
Hydraulic oil access passes through 23 connection of orifice valve composition on 11 inner piston 22 of working cylinder；When rolling stock crosses curve, working cylinder
The hydraulic oil access of 11 compression chambers 111 and elongated cavity 112 is connected to by the oil pipe 14 in 11 outside of working cylinder, makes vibration damping utensil
There is the damping characteristic of very little, to protect the rolling stock abrasion of wheel rim relative to railway when crossing curve.
Embodiment 3
The present embodiment is improved further on the basis of embodiment 2, and as shown in Figs. 1-2, pedestal leads to oil circuit 121, leads
Lead on the oil circuit that oil circuit 131 and oil pipe 14 are constituted to seat, the plug-in for being equipped with reception external signal control opening and closing degree is opened
Close valve 15.The plug-in switch valve 15 of the present embodiment, selects the bi-bit bi-pass of BVE type Electromagnetic Control, and two-position three way cut-off type changes
To valve, the pedestal that plug-in switch valve 15 is mounted on pedestal 12 leads on oil circuit.
When specifically used, plug-in switch valve 15 receives the signal of peripheral control unit, and operator passes through external control
Device controls the opening and closing degree of plug-in switch valve 15, and then controls degree and closing that 11 outside oil circuit of working cylinder is opened, thus
So that the damping force of damper is decreased to desired damping force, its damping characteristic is allow to run speed according to different road conditions, vehicle
Situations such as spending size is converted, and the requirement for adjusting resistance of shock absorber characteristic is reached.
Embodiment 4
The present embodiment is improved further on the basis of embodiment 2 or 3 any one, as shown in Figs. 1-2, working cylinder
11 outsides are equipped with oil drum 16, and oil pipe 14 is located in oil drum 16, and bottom is equipped between the compression chamber 111 of pedestal 12 and working cylinder 11
Valve 17；Fixed bottom valve 17 is installed on bottom valve 17 and is connected to the fixed oil pipe of pedestal of compression chamber 111 and the logical oil circuit 121 of pedestal
18, the bottom valve of two unilaterally connected compression chambers 111 and oil drum 16 damps valve cell (being not marked in figure) and one unidirectionally connects
The check valve (being not marked in figure) of logical oil drum 16 and compression chamber 111.
In the present embodiment, bottom valve damps the structure of valve cell and inversely damps valve cell and bottom valve orifice valve cellular construction one
Sample, check valve are conventional check valve, and the effect of bottom valve damping valve cell and check valve is unilaterally connected compression chamber 111 and storage
Oily cylinder 16.When specifically used, hydraulic oil is stored in oil drum 16, storage increases institute by 11 inner piston rod of working cylinder, 21 volume
The hydraulic oil of discharge, and make up since 11 inner piston rod of working cylinder, 21 volume reduces the required hydraulic oil compensated.Pedestal is fixed
Bottom valve 17 is fixed on pedestal 12 by oil pipe 18, and is connected to compression chamber 111 and the logical oil circuit of pedestal by the aperture in it, so as to
It is connected in oil pipe 18.Compression chamber 111 damps valve cell by bottom valve with oil drum 16 and is connected to check valve, bottom valve orifice valve
Unit and check valve are in parallel, equal unilaterally connected compression chamber 111 and oil drum 16, and communication direction is on the contrary, hydraulic oil is from storage when stretching
Oily cylinder 16 enters in compression chamber 111 through check valve, and hydraulic oil enters oil storage through bottom valve damping valve cell from compression chamber 111 when compression
In cylinder 16.
Embodiment 5
The present embodiment is improved further on the basis of embodiment 4, as shown in figure 3, positive damping valve cell, reverse
Damp valve cell and bottom valve damping valve cell damping valve cell 3, include orifice valve 31,31 side of orifice valve valve bonnet 32 with
And the compressed spring 33 set is pushed up in 31 other side of orifice valve.
In the present embodiment, orifice valve is orifice valve conventional in the prior art, and orifice valve 31 is equipped with unloading hole and meropodium
Through flow hole, piston and bottom valve are equipped with the through-hole for being connected to orifice valve 31.When specifically used, 111 He of compression chamber of working cylinder 11
Elongated cavity 112 and compression chamber 111 are connected to by damping valve cell 3 with oil drum 16；Meropodium through flow hole is for being connected to damping
The cavity of 4 two sides of valve cell；After unloading hole is for the movement of orifice valve 31, it is connected to through-hole, makes damper off-load.
Embodiment 6
The present embodiment is improved further on the basis of embodiment 4 or 5 any one, as shown in Figs. 1-2, dust cover
Component 2 further includes dust cover 24 and dust guard holder 25, and dust cover 24 is located at 21 outside of piston rod, and 24 one end of dust cover is set in storage
Oily 16 outside of cylinder, the other end are fixedly connected with dust guard holder 25, and piston rod 21 is fixedly connected with dust guard holder 25 away from 22 end of piston.In
When specifically used, pass through 2 proofing dust and protecting of dustproof cover component of 24 pairs of dust cover slidings.
Embodiment 7
The present embodiment is improved further, as shown in Figs. 1-2, pedestal 12 and dust guard holder on the basis of embodiment 6
25 outer ends are respectively connected with rubber nodal point 4.When specifically used, damper is mounted on to the iron for needing vibration damping by rubber nodal point 4
On road vehicles.
Embodiment 8
The present embodiment is improved further on the basis of embodiment 1-7 any one, is risen and is stretched and compression
Forward direction damping valve cell and reverse damping valve cell are mounted on two, and forward direction damping valve cell and reverse damping valve cell are constituted
Double oil circuits make oil-pressure damper Dynamic Damp Characteristics and dynamic rate characteristic have symmetry characteristic, to guarantee that high speed motor car makes
With driving safety in the process.
In order to better understand the present invention, the working principle of the invention is made below with reference to above-described embodiment primary complete
Description:
When rolling stock normally travel, plug-in type switch valve 15 is closed, and the oil circuit in 11 outside of shock absorber working cylinder is closed.Subtract
When vibration device drawing process, since 112 pressure of elongated cavity on 22 top of piston increases, the hydraulic oil of elongated cavity 112 passes through work first
The length on orifice valve 31 is led to throttle orifice and is entered in the compression chamber 111 of 22 lower part of piston beyond the Great Wall, due to the viscous effect of hydraulic oil,
Damper generates the damping force opposite with direction of vibration under certain speed, and as speed increases, hydraulic fluid pressure pushes piston
Orifice valve 31 and cylindroid helical-coil compression spring 33 on 22 on positive damping valve cell move down, until the off-load of orifice valve 31
Hole is opened, and damper generates off-load.Simultaneously because the rising of piston rod 21, the compression chamber 111 of 22 lower end working cylinder 11 of piston is needed
The loss of certain 21 volume reduction of oil liquid compensating piston bar is supplemented, the hydraulic oil inside oil drum 16 can be by bottom valve 17
Check valve enter inside compression chamber 111.
When rolling stock normally travel, plug-in type switch valve 15 is closed, and the oil circuit in 11 outside of shock absorber working cylinder is closed.Together
Sample, when oil-pressure damper is when in a compressed state, 111 pressure of compression chamber of 22 lower part of piston increases, hydraulic in compression chamber 111
Oil leads to throttle orifice by the length damped on valve cell 3 on piston 22 first, enters in the elongated cavity 112 on 22 top of piston, by
Damping is generated in the viscous effect of hydraulic oil, damper generates the damping force opposite with direction of vibration under certain speed, with
Compression speed increases, and hydraulic fluid pressure pushes the orifice valve 31 of reverse orifice valve unit and cylindrical screw compression on piston 22 respectively
Spring 33 up moves until the unloading hole of orifice valve 31 is opened, and 22 lower end compression cylinder of piston, 111 internal hydraulic pressure oil enters work
It fills in 22 top tension cylinders 112, damper generates off-load.Simultaneously because the decline of piston rod 21, piston rod 21 enters work
Inside cylinder 11, the hydraulic oil of 11 internal compression chamber 111 of working cylinder enters in oil drum 16 through bottom valve damping valve cell, to compensate work
Increase of 21 volume of stopper rod in working cylinder 11.
The present invention increases an inserting on the oil circuit of the pedestal 12 in 11 outside of working cylinder, oil pipe 14 and guide holder 13
Formula switch valve 15, rolling stock receive external input signal in the open state, subtract in curve, plug-in type switch valve 15 excessively
It shakes device stretching travel, the hydraulic oil in 22 upper end stretching cylinder 112 of piston passes through 13 inside guide holder of guide holder first and leads to oil circuit 131
Oil pipe 14 is entered, enters work by the hydraulic oil access that the pedestal of pedestal 12 leads to the fixed oil pipe 18 of oil circuit 131, pedestal
Fill in the compression chamber 111 of 22 lower ends；Equally, the hydraulic oil when damper is in compression travel, in 11 lower end compression cylinder 111 of piston
It is entered in the stretching cylinder 112 of 22 upper end working cylinder 11 of piston by identical oil circuit but opposite direction.Since plug-in type switchs
Valve 15 is opened, and 22 both ends hydraulic oil access of piston increases, and the opening and closing degree of plug-in type switch valve 15 is adjusted, so that damper be made to hinder
Buddhist nun's force value is decreased to require damping force, reaches and adjusts resistance of shock absorber characteristic requirements.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of rolling stock half active oil-pressure damper of double oil circuits switching regulator adaptive damping, it is characterised in that: including oil cylinder
Component (1) and the dustproof cover component (2) for being slidably mounted on cylinder component (1) upper end；
The cylinder component (1) includes the working cylinder (11) of internal filling hydraulic oil, and the working cylinder (11) includes compression chamber
(111) and elongated cavity (112)；
The dustproof cover component (2) includes sliding the piston rod (21) being threaded through in the working cylinder (11), being mounted on the work
Stopper rod (21) inner end and the piston (22) being bonded with working cylinder (11) inner wall and it is installed on piston (22) connection piston (22)
The orifice valve of two sides compression chamber (111) and elongated cavity (112) forms (23)；
The orifice valve composition (23) includes forward mounted multiple positive damping valve cells, and is inversely installed multiple reverse
Valve cell is damped, the multiple positive damping valve cell and multiple reverse damping valve cells are along piston (22) axisymmetrical point
Cloth.
2. a kind of rolling stock according to claim 1 half active oil-pressure damper of double oil circuits switching regulator adaptive damping,
It is characterized by: the cylinder component (1) further includes the pedestal (12) and guide holder for closing the working cylinder (11) left and right ends
(13), piston rod (21) sliding is threaded through in the guide holder (13)；
The bottom for being connected to the compression chamber (111) and elongated cavity (112) is respectively arranged in the pedestal (12) and guide holder (13)
The logical oil circuit (121) of seat and guide holder lead to oil circuit (131), are equipped between pedestal (12) and guide holder (13) and are connected to the logical oil of the pedestal
Road (121) and guide holder lead to the oil pipe (14) of oil circuit (131), and the oil pipe (14) is located on the outside of the working cylinder (11).
3. a kind of rolling stock according to claim 2 half active oil-pressure damper of double oil circuits switching regulator adaptive damping,
It is characterized by: on the oil circuit that the pedestal leads to oil circuit (121), guide holder leads to oil circuit (131) and oil pipe (14) is constituted, installation
There is the plug-in switch valve (15) for receiving external signal control opening and closing degree.
4. a kind of rolling stock according to claim 2 half active oil-pressure damper of double oil circuits switching regulator adaptive damping,
It is characterized by: being equipped with oil drum (16) on the outside of the working cylinder (11), the oil pipe (14) is located at the oil drum (16)
It is interior, bottom valve (17) are equipped between the pedestal (12) and compression chamber (111)；The connection compression chamber is installed on the bottom valve (17)
(111) and pedestal leads to compression chamber (111) and oil storage described in the pedestal fixed oil pipe (18) of oil circuit (121), multiple unilaterally connecteds
The check valve of oil drum (16) and compression chamber (111) described in the bottom valve damping valve cell and unilaterally connected of cylinder (16).
5. a kind of rolling stock according to claim 4 half active oil-pressure damper of double oil circuits switching regulator adaptive damping,
It is characterized by: the damping valve cell (3) of positive damping valve cell, reverse damping valve cell and bottom valve damping valve cell, is wrapped
It includes orifice valve (31), the valve bonnet (32) of orifice valve (31) side and orifice valve (31) other side and pushes up the compressed spring (33) set.
6. a kind of rolling stock according to claim 4 half active oil-pressure damper of double oil circuits switching regulator adaptive damping,
It is characterized by: the dustproof cover component (2) further includes dust cover (24) and dust guard holder (25), the dust cover (24) is located at
On the outside of the piston rod (21), dust cover (24) one end is set on the outside of the oil drum (16), and the other end is fixedly connected described
The outer end of dust guard holder (25), the piston rod (21) is fixedly connected with the dust guard holder (25).
7. a kind of rolling stock according to claim 6 half active oil-pressure damper of double oil circuits switching regulator adaptive damping,
It is characterized by: the pedestal (12) and dust guard holder (25) outer end are respectively connected with rubber nodal point (4).
8. a kind of rolling stock according to claim 1 half active oil-pressure damper of double oil circuits switching regulator adaptive damping,
It is characterized by: the positive damping valve cell and reverse damping valve cell are mounted on two.
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| CN201910661828.4A CN110425245B (en) | 2019-07-22 | 2019-07-22 | Double-oil-way switch type variable damping semi-active oil pressure shock absorber for railway vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059198A (en) * | 2019-12-31 | 2020-04-24 | 珠海市业成轨道交通设备科技有限公司 | Double-circulation structure oil pressure shock absorber piston assembly for railway vehicle |
| CN112727978A (en) * | 2021-01-22 | 2021-04-30 | 保定市东利机械制造股份有限公司 | Damping self-adaptation automobile shock absorber ware |
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| CN111059198A (en) * | 2019-12-31 | 2020-04-24 | 珠海市业成轨道交通设备科技有限公司 | Double-circulation structure oil pressure shock absorber piston assembly for railway vehicle |
| CN112727978A (en) * | 2021-01-22 | 2021-04-30 | 保定市东利机械制造股份有限公司 | Damping self-adaptation automobile shock absorber ware |
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