CN109027094A - A kind of air damping spring of not isometrical binodal flow tube - Google Patents
A kind of air damping spring of not isometrical binodal flow tube Download PDFInfo
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- CN109027094A CN109027094A CN201811199074.7A CN201811199074A CN109027094A CN 109027094 A CN109027094 A CN 109027094A CN 201811199074 A CN201811199074 A CN 201811199074A CN 109027094 A CN109027094 A CN 109027094A
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- air
- isometrical
- upper cover
- damping spring
- cover plate
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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
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/0436—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by being contained in a generally closed space
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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
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
- F16F9/0472—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by comprising a damping device
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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
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
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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
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
Abstract
The invention belongs to air spring technical fields, in particular a kind of air damping spring of not isometrical binodal flow tube, including piston and two throttle pipes, the top of the piston is connected with rubber pneumatic bag, the top of the rubber pneumatic bag is equipped with upper cover plate, and the top of the upper cover plate is equipped with two throttle pipes；Two throttle pipe diameters are respectively d1, d2, two throttle Guan Jun insert the top that mode is connected to upper cover plate by gas nozzle fastly, the diameter is inserted mode to be respectively equipped with No.1, No. two switch electromagnetic valves inside the damper tube of d1, d2, by gas nozzle fastly and is connected with auxiliary chamber.The present invention uses not isometrical binodal flow tube, if there are two switch electromagnetic valves, the level Four regulatory function of air damping spring rate transient characteristic and air damping characteristic can be achieved, so that its rigidity and air damping characteristic is carried out real-time control by the opening and closing that control unit controls solenoid valve according to vehicle driving situation, is conducive to the control stability and riding comfort that improve vehicle.
Description
Technical field
The invention belongs to air spring technical fields, and in particular to a kind of air damping spring of not isometrical binodal flow tube.
Background technique
Air spring is a kind of ideal elastic element, has ideal nonlinear mechanics characteristic, good road
Friendly, light weight, interior friction are small, are conducive to the lightweight of vehicle and reduce noise, superior mechanical characteristic can be vehicle
Good riding comfort is provided.Therefore, air spring be widely used in commercial vehicle vehicle body, train second level suspension, vehicle suspension,
The multiple fields such as equipment damping.
Although air spring makes it have ideal linear Stiffness characteristic using rubber material and compressed air, only
Conventional metals spring is substituted as elastic element, without preferably expanding the application range of air spring.Using air spring as
Main air chamber constitutes air damping spring by way of increasing auxiliary chamber and restricting element, has air damping spring and becomes
The double grading of rigidity and variable damping has expanded the function of air spring.The introducing of air damping also replaces air damping spring
It is possibly realized for conventional hydraulic damper, is of great significance to automotive suspension lightweight, improvement vehicle comprehensive performance.
But in the prior art, air damping spring structure is directly arranged attachment gas chamber frequently with monolithic construction
It immediately below piston, causes air damping spring structure big, is not easy to be arranged in vehicle suspension kind, it is especially outstanding in seat
Difficult arrangement in frame, body mount and riding suspension.
But in the prior art, in air damping spring frequently with throttle orifice as restricting element, compressed air stream flows through section
Discharge orifice have extremely strong nonlinear characteristic, in addition the strong nonlinearity of rubber pneumatic bag change with compressed air thermodynamic state it is non-thread
Property, cause design, the difficulty in computation of entire air damping spring big.
But it in the prior art, is not provided with solenoid valve in air damping spring, and only single restricting element, leads to sky
The rigidity and air damping size of gas damping spring cannot be adjusted according to vehicle driving situation, and single restricting element can not yet
Realize the adjusting of multistage stiffness transition characteristic and multi-staged air damping characteristic.
Therefore, big difficulty, non-linear extremely strong, rigidity and damping characteristic list are arranged to improve conventional air damper spring arrangement
One and the problems such as cannot be adjusted according to vehicle driving situation, study a kind of structure flexible arrangement, mechanical characteristic linearisation relatively more
Good, rigidity and damping characteristic can the multistage novel air damping spring actively adjusted seem especially urgent.
Summary of the invention
To solve the problems mentioned above in the background art.The present invention provides a kind of resistances of the air of not isometrical binodal flow tube
Buddhist nun's spring has the characteristics that convenient for arrangement.
To achieve the above object, the invention provides the following technical scheme: a kind of air damping bullet of not isometrical binodal flow tube
Spring, air damping spring include:
Piston, the top of the piston are connected with rubber pneumatic bag, and the top of the rubber pneumatic bag is equipped with upper cover plate, it is described on
Cover board is welded with double air inlet studs, with gas nozzle screw threads for fastening, sealed connection, two throttles of the push-in connection of gas nozzle
Pipe；
Two throttle pipes, two throttle pipes are divided into the damper tube that the damper tube that diameter is d2 and diameter are d1,
The top that two throttle Guan Jun are connected to upper cover plate by inserting mode fastly with gas nozzle, the diameter is the interior of the damper tube of d2
Portion is equipped with No. two switch electromagnetic valves, and the diameter is that the inside of the damper tube of d1 is equipped with No.1 switch electromagnetic valve, and the diameter is
The damper tube and diameter of d2 are that the other end of the damper tube of d1 is connected with auxiliary chamber；
Control unit ECU, described control unit ECU pass through cable and No.1 switch electromagnetic valve and No. two switch electromagnetism respectively
Valve connection.
It in order to increase air spring volume, promotes vehicle comfort and lightweight is horizontal, a kind of differed as of the invention
The air damping spring optimal technical scheme of diameter binodal flow tube, the piston are hollow structural member made of aluminum casting, piston
Top offers connecting hole, and piston is connected to by connecting hole with rubber pneumatic bag.
In order to enable equipment is more convenient when adjusting rigidity and damping, as a kind of not isometrical binodal flow tube of the invention
Air damping spring optimal technical scheme, design has double air inlet studs, the damping that upper cover plate and diameter are d2 on the upper cover plate
Pipe, the damper tube that diameter is d1 are connected to by push-in gas nozzle with air inlet stud, and air inlet stud design has inside and outside double thread, into
Gas stud and upper cover plate are welded using carbon-dioxide arc welding, and upper cover plate is handled using trivalent chromium plating.
In order to lift structure leakproofness and be conveniently replaceable air bag body, as a kind of not isometrical binodal flow tube of the invention
Air damping spring optimal technical scheme, the rubber pneumatic bag are made of rubber and cord fabric thread vulcanization, the rubber pneumatic bag and work
It is connected between plug, rubber pneumatic bag and upper cover plate using seam allowance cooperation, pressure self-sealing, upper cover plate, rubber pneumatic bag and piston are constituted
Air spring.
For the ease of the quick-replaceable of equipment, the air damping spring as a kind of not isometrical binodal flow tube of the invention is excellent
Selecting technology scheme has sealant on the gas nozzle, and with air inlet stud using being threadedly coupled, sealing, gas nozzle is not isometrical with two
Throttle pipe is push-in sealed connection.The connection of two not isometrical throttle pipes and switch electromagnetic valve, auxiliary chamber is equal
For the push-in connection of gas nozzle.
For the structural strength of lifting means, extend the service life of equipment, realizes multistage stiffness transition characteristic and air
Damping characteristic, as a kind of air damping spring optimal technical scheme of not isometrical binodal flow tube of the invention, two throttle blocks
Buddhist nun's pipe is all made of high-intensitive, high pressure resistant nylon tube, and diameter and the length of two throttle pipes are all different.
In order to realize the adjusting of multistage stiffness transition characteristic and air damping characteristic, as of the invention a kind of not isometrical pair
The air damping spring optimal technical scheme of throttle pipe, two not isometrical throttle pipes are internally provided with No.1, No. two switches
Solenoid valve.
In order to enable equipment more can accurately carry out stiffness transition characteristic and air damping is adjusted, as of the invention
A kind of air damping spring optimal technical scheme of not isometrical binodal flow tube, the described control unit ECU other end are connected by cable
It is connected to rotary angle transmitter, height sensor, baroceptor and acceleration transducer, described control unit ECU passes through electricity respectively
Cable is connect with No.1 switch electromagnetic valve and No. two switch electromagnetic valves.
For the security performance of lifting means, the air damping spring as a kind of not isometrical binodal flow tube of the invention is excellent
Selecting technology scheme, the auxiliary chamber are single-chamber gas receiver, and the bottom end of auxiliary chamber has been connected through a screw thread drain valve, add gas
The side wall of room has been connected through a screw thread side safety valve.
In order to which equipment is more convenient for installing and places, the air damping spring as a kind of not isometrical binodal flow tube of the invention
Optimal technical scheme, the auxiliary chamber are split type arrangement with the air spring being made of upper cover plate, rubber pneumatic bag and piston.
Compared with prior art, the beneficial effects of the present invention are:
(1) matched between the upper cover plate of the air spring of the air damping spring, rubber pneumatic bag and piston three using seam allowance
It closing, components are few, and installation is simple, and it is easy to maintain, after the rubber pneumatic bag fatigue damage of air spring, it is only necessary to replace rubber gas
Capsule, maintenance is simple, and maintenance cost is low.
(2) the air damping spring use split type arrangement, auxiliary chamber flexible arrangement, be conducive in a limited space into
Row suspension design and reasonable Arrangement.The air damping spring, as restricting element, is had relatively preferably using throttle pipe
Linear characteristic can reduce air damping spring design-calculated complexity, be conducive to shorten development cycle and preferably right
Its mechanical characteristic is controlled.Gas nozzle on throttle pipe and air inlet stud, solenoid valve and auxiliary chamber are push-in company
It connects, assembly is simple, reliable, easy to maintain.
(3) the air damping spring uses not isometrical binodal flow tube, and sets there are two switch electromagnetic valve, and air may be implemented
The level Four regulatory function of dampening spring rates transient characteristic and air damping characteristic allows its rigidity and air damping characteristic root
Real-time control is carried out by the opening and closing that control unit controls solenoid valve according to vehicle driving situation, the manipulation for being conducive to improve vehicle is steady
Qualitative and riding comfort.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the upper cover plate overlooking structure diagram in the present invention；
Fig. 3 is the upper cover plate cross section structure schematic diagram in the present invention；
Fig. 4 is the rubber pneumatic bag structural schematic diagram in the present invention；
In figure: 1, piston；2, rubber pneumatic bag；3, upper cover plate；4, gas nozzle；5, diameter is the damper tube of d2；6, diameter d1
Damper tube；7, No.1 switch electromagnetic valve；8, No. two switch electromagnetic valves；9, control unit ECU；10, rotary angle transmitter；11, high
Spend sensor；12, baroceptor；13, acceleration transducer；14, auxiliary chamber；15, drain valve；16, safety valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Please refer to Fig. 1-4, the present invention the following technical schemes are provided: a kind of air damping spring of not isometrical binodal flow tube,
Including piston 1, the top of the piston 1 is connected with rubber pneumatic bag 2, and the top of the rubber pneumatic bag 2 is equipped with upper cover plate 3, described
Upper cover plate 3 is welded with double air inlet studs, and with 4 screw threads for fastening of gas nozzle, sealed connection, the gas nozzle 4 is push-in to be connected with two sections
Flow damping pipe；
Two throttle pipes, two throttle pipes are divided into the damper tube that the damper tube 5 that diameter is d2 and diameter are d1
6, two throttle Guan Jun are threaded in the top of upper cover plate 3 by push-in gas nozzle 4, and the diameter is the damper tube of d2
5 inside is equipped with No. two switch electromagnetic valves 8, and the diameter is that the inside of the damper tube 6 of d1 is equipped with No.1 switch electromagnetic valve 7, institute
The other end for stating the damper tube 5 that diameter is d2 and the damper tube 6 that diameter is d1 is connected with auxiliary chamber 14；
Control unit ECU9, described control unit ECU9 pass through cable and No.1 switch electromagnetic valve 7 and No. two switches respectively
Solenoid valve 8 connects, and in the present embodiment, No.1 switch electromagnetic valve 7 and No. two autonomous workings of switch electromagnetic valve 8 can be convenient for equipment
Adjust the closing of the pressure and throttling passage inside rubber pneumatic bag 2.
Specifically, piston 1 is hollow structural member made of aluminum casting, 1 top of piston offers connecting hole, and piston 1 is logical
It crosses connecting hole to be connected to rubber pneumatic bag 2, piston 1 is hollow structural member made of aluminum casting in the present embodiment.
Specifically, design has double air inlet studs on upper cover plate 3, damper tube 5 that upper cover plate 3 is d2 with diameter, diameter d1
Damper tube 6 be connected to air inlet stud by gas nozzle 4, air inlet stud design has inside and outside double thread, air inlet stud and upper cover plate 3
It is welded using carbon-dioxide arc welding, upper cover plate 3 is handled using trivalent chromium plating, and trivalent chromium plating promotes upper cover in the present embodiment
The inertia of plate 3 reduces corrosion, promotes the service life of upper cover plate 3, environmental and durable.
Specifically, rubber pneumatic bag 2 is made of rubber and cord fabric thread vulcanization, rubber pneumatic bag 2 and piston 1, rubber pneumatic bag 2 with it is upper
Using seam allowance cooperation, pressure self-sealing connection between cover board 3, upper cover plate 3, rubber pneumatic bag 2 and piston 1 constitute air spring.
Specifically, have sealant on gas nozzle 4, with air inlet stud using being threadedly coupled, seal, gas nozzle 4 and two are differed
Diameter throttle pipe is push-in sealed connection, and two throttle pipes are all made of high-intensitive, high pressure resistant nylon tube, two throttlings
The diameter of damper tube is all different with length, and two not isometrical throttle pipes and the connection of No.1, No. two switch electromagnetic valves are equal
For the push-in connection of gas nozzle 4, push-in connection carries out the components such as damper tube or solenoid valve convenient for staff in the present embodiment
Replacement promotes replacement efficiency.
Specifically, control unit ECU9 and rotary angle transmitter 10, height sensor 11, acceleration transducer 12 and air pressure transmission
Sensors 13 etc. are by cable connection, and in the present embodiment, cable connection normally communicate progress signal transmission and electric power convenient for equipment
Transmission.
Specifically, auxiliary chamber 14 is single-chamber gas receiver, the bottom end of auxiliary chamber 14 has been connected through a screw thread drain valve 15,
The side wall of auxiliary chamber 14 has been connected through a screw thread side safety valve 16, in the present embodiment, auxiliary chamber be aluminium alloy lightweight,
Corrosion resistant material, the security performance of drain valve 15 and 16 lifting means of safety valve.
Specifically, auxiliary chamber 14 is split type cloth with the air spring being made of upper cover plate 3, rubber pneumatic bag 2 and piston 1
It sets, split type arrangement is convenient for the installation and placement of equipment in the present embodiment.
Control unit ECU9, rotary angle transmitter 10, height sensor 11, baroceptor 12 and acceleration in the present embodiment
Sensor 13 is the known technology for being widely used in daily life having disclosed, and control unit ECU9 uses Jinan freely rich automobile
The control unit of the model 202V25803-7915 of accessory Co., Ltd production, rotary angle transmitter 10 is using Xiamen neck summer intelligence
The sensor of the model SAS-01 of Science and Technology Ltd.'s production, height sensor 11 are limited using the macro wound automobile parts of Rui'an City
The sensor of the model RQH10030 of company's production, baroceptor 12 are produced using Beijing giga ohm Tian Sheng commerce and trade Co., Ltd
Model 2.4L MT sensor, acceleration transducer 13 using macro bright scientific and technological (Hong Kong) Co., Ltd production model
The sensor of MMA7660FC.
The working principle of the invention and process for using: the equipment piston 1 and rubber pneumatic bag 2, rubber at runtime in the present invention
Glue air bag 2 and upper cover plate 3 constitute air spring between any two by seam allowance cooperation, pressure self-sealing.Band on push-in gas nozzle 4
There is sealant, be tightly connected by the air inlet stud in screw threads for fastening and upper cover plate 3.Two not isometrical throttle pipes 5,6 with
Gas nozzle 4 is push-in sealed connection.Throttle pipe 5,6 is also through push-in gas nozzle and two switch electromagnetic valves 7,8 both ends and attached
Aerating room 14 is attached.Two switch electromagnetic valves 7,8 control terminals are by cable connection to control unit ECU 9.Control unit ECU
The signals such as 9 reception rotary angle transmitters 10, height sensor 11, baroceptor 12 and acceleration transducer 13 carry out comprehensive meter
It calculates, analysis, and then issues electric signal control switch electromagnetism valve events.Lower drain valve 15 has been connected through a screw thread on auxiliary chamber 14
With side safety valve 16.
When being filled and deflated by or highly adjusting, two solenoid valves 7,8 are in opening state.Gas from compressor or air accumulator into
Enter auxiliary chamber 14 (there is an air inlet in 14 side of gas chamber, is not drawn into figure), by two throttle pipes 5,6 via switch electromagnetic valve 7,
8 enter in rubber pneumatic bag, realize the air inlet of air damping spring, degassing function by the side air inlet of attachment gas chamber 14.
In work, cooperated between upper cover plate 3, rubber pneumatic bag 2 and piston 1 by seam allowance, pressure self-sealing, guarantees air bullet
Spring air-tightness.Air spring, throttle pipe 5,6, solenoid valve 7,8 and auxiliary chamber 14 constitute a closed pneumatic circuit.Work as work
Plug 1, upper cover plate 3 are mounted in automotive suspension when generating relative motion, and control unit 9 is according to the rotary angle transmitter of real-time reception
10, the signals such as height sensor 11, baroceptor 12 and acceleration transducer 13 carry out COMPREHENSIVE CALCULATING, analysis, judge vehicle
Driving status, and then issue electric signal control switch solenoid valve 7,8 act.
Four kinds of states that two movements of switch electromagnetic valve 7,8 generate are as follows:
Switch electromagnetic valve 7 is in the open state, and solenoid valve 8 is in the open state, in the rubber pneumatic bag of air damping spring
Gas passes through the throttle pipe 5,6 that diameter is d2, d1 simultaneously and solenoid valve 7,8 is connected to auxiliary chamber.At this point, air damping
The stiffness transition characteristic and air damping property settings of spring are first order rigidity, damping state.
Switch electromagnetic valve 7 is in close state, and solenoid valve 8 is in the open state, in the rubber pneumatic bag of air damping spring
Gas is connected to by throttle pipe 5, the solenoid valve 8 that diameter is d2 with auxiliary chamber.At this point, the rigidity mistake of air damping spring
It crosses characteristic and air damping property settings is second level rigidity, damping state.
Switch electromagnetic valve 7 is in the open state, and solenoid valve 8 is in close state, in the rubber pneumatic bag of air damping spring
Gas is connected to by throttle pipe 6, the solenoid valve 7 that diameter is d1 with auxiliary chamber.At this point, the rigidity mistake of air damping spring
It crosses characteristic and air damping property settings is third level rigidity, damping state.
Switch electromagnetic valve 7,8 is in closed state, in the rubber pneumatic bag of air damping spring in gas and auxiliary chamber
Gas is completely cut off by solenoid valve 7,8.At this point, air damping spring is single air spring, no air damping, rigidity is maximum, if
It is set to fourth stage rigidity, damping state.
In the description of the present invention, it is to be understood that, term " on ", "lower", "left", "right", " one end ", " centre ",
The orientation or positional relationship of the instructions such as " circumference ", " top ", " bottom end ", " left end ", " right end " is orientation based on the figure
Or positional relationship, it is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " another " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple ", " several " are meant that at least two, such as
Two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, the description of reference term " one embodiment ", " example " etc. means to combine and be somebody's turn to do
Embodiment or example particular features, structures, materials, or characteristics described are contained at least one embodiment of the present invention or show
In example.In the present specification, the schematic representation of the above terms does not necessarily have to refer to the same embodiment or example.And
And particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples with suitable side
Formula combines.In addition, without conflicting with each other, those skilled in the art can will be described in this specification different real
The feature for applying example or example and different embodiments or examples is combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of air damping spring of not isometrical binodal flow tube, it is characterised in that: air damping spring includes:
Piston, the top of the piston are connected with rubber pneumatic bag, and the top of the rubber pneumatic bag is equipped with upper cover plate, the upper cover plate
Double air inlet studs are welded with, are sealed with gas nozzle screw threads for fastening, the top of the upper cover plate is equipped with two throttle pipes；
Two throttle pipes, two throttle pipes are divided into the damper tube that damper tube that diameter is d2 and diameter are d1, and two
Throttle Guan Jun is connected to the top of upper cover plate by push-in gas nozzle, and the diameter is that the inside of the damper tube of d2 is equipped with two
Number switch electromagnetic valve, the diameter are that the inside of the damper tube of d1 is equipped with No.1 switch electromagnetic valve, and the diameter is the damping of d2
The other end of pipe and the damper tube that diameter is d1 is connected with auxiliary chamber；
Control unit ECU, described control unit ECU pass through cable and No.1 switch electromagnetic valve respectively and No. two switch electromagnetic valves connect
It connects.
2. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: the piston
For hollow structural member made of aluminum casting, piston tip offers connecting hole, and piston is connected to by connecting hole with rubber pneumatic bag.
3. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: the upper cover
Design has double air inlet studs on plate, and the damper tube that damper tube that upper cover plate and diameter are d1, diameter are d2 passes through push-in gas nozzle
It is connected to air inlet stud, air inlet stud design has inside and outside double thread, air inlet stud and upper cover plate to weld using carbon-dioxide arc welding
It connects, upper cover plate is handled using trivalent chromium plating.
4. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: the rubber
Air bag is made of rubber and cord fabric thread vulcanization, is matched between the rubber pneumatic bag and piston, rubber pneumatic bag and upper cover plate using seam allowance
It closes, pressure self-sealing connection, upper cover plate, rubber pneumatic bag and piston constitute air spring.
5. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: the gas nozzle
Upper to have sealant, with air inlet stud using being threadedly coupled, sealing, gas nozzle is push-in close with two not isometrical throttle pipes
Envelope connection.
6. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: two throttlings
Damper tube is all made of high-intensitive, high pressure resistant nylon tube, and diameter and the length of two throttle pipes are all different.
7. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: two are differed
No.1, No. two switch electromagnetic valves are respectively arranged with inside diameter throttle pipe, the connection of damper tube and switch electromagnetic valve is gas
It has a loose tongue plug-in connection.
8. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: the control
The unit ECU other end passes through the angled sensor of cable connection, height sensor, baroceptor and acceleration transducer.
9. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: described additional
Gas chamber is single-chamber gas receiver, and the bottom end of auxiliary chamber has been connected through a screw thread drain valve, and the side wall of auxiliary chamber is connected by screw thread
It is connected to side safety valve.
10. a kind of air damping spring of not isometrical binodal flow tube according to claim 1, it is characterised in that: described attached
Aerating room is split type arrangement with the air spring being made of upper cover plate, rubber pneumatic bag and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199074.7A CN109027094A (en) | 2018-10-15 | 2018-10-15 | A kind of air damping spring of not isometrical binodal flow tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199074.7A CN109027094A (en) | 2018-10-15 | 2018-10-15 | A kind of air damping spring of not isometrical binodal flow tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109027094A true CN109027094A (en) | 2018-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811199074.7A Pending CN109027094A (en) | 2018-10-15 | 2018-10-15 | A kind of air damping spring of not isometrical binodal flow tube |
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| Country | Link |
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| CN (1) | CN109027094A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182783A (en) * | 2011-04-27 | 2011-09-14 | 江苏大学 | Pipeline flow control valve between auxiliary air chamber and air spring |
| US20130054091A1 (en) * | 2011-08-31 | 2013-02-28 | Bombardier Recreational Products Inc. | Vehicle suspension and pneumatic systems |
| CN204127188U (en) * | 2014-09-02 | 2015-01-28 | 山东红光橡胶科技有限公司 | A kind of rubber air spring being applicable to bullet train vibration isolation sound insulation |
| CN107472282A (en) * | 2017-07-26 | 2017-12-15 | 中车唐山机车车辆有限公司 | City rail vehicle bogie contacts sleeper beam and city rail vehicle |
| CN208885846U (en) * | 2018-10-15 | 2019-05-21 | 江西理工大学 | A kind of air damping spring of not isometrical binodal flow tube |
-
2018
- 2018-10-15 CN CN201811199074.7A patent/CN109027094A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182783A (en) * | 2011-04-27 | 2011-09-14 | 江苏大学 | Pipeline flow control valve between auxiliary air chamber and air spring |
| US20130054091A1 (en) * | 2011-08-31 | 2013-02-28 | Bombardier Recreational Products Inc. | Vehicle suspension and pneumatic systems |
| CN204127188U (en) * | 2014-09-02 | 2015-01-28 | 山东红光橡胶科技有限公司 | A kind of rubber air spring being applicable to bullet train vibration isolation sound insulation |
| CN107472282A (en) * | 2017-07-26 | 2017-12-15 | 中车唐山机车车辆有限公司 | City rail vehicle bogie contacts sleeper beam and city rail vehicle |
| CN208885846U (en) * | 2018-10-15 | 2019-05-21 | 江西理工大学 | A kind of air damping spring of not isometrical binodal flow tube |
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