CN109973662A - A kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber wears case axis gas-tight sealing - Google Patents
A kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber wears case axis gas-tight sealing Download PDFInfo
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- CN109973662A CN109973662A CN201910296454.0A CN201910296454A CN109973662A CN 109973662 A CN109973662 A CN 109973662A CN 201910296454 A CN201910296454 A CN 201910296454A CN 109973662 A CN109973662 A CN 109973662A
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- ring
- fixedly connected
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- low temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
- F16C32/0622—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via nozzles, restrictors
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
- F16C32/0625—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via supply slits
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The present invention relates to space flight ground simulation test technical fields, it in particular is that a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber wears case axis gas-tight sealing, including air seal set, horizontal drive shaft, attachment device, longitudinal two-freedom moves air bearing, pedestal air bearing, high-low temperature chamber and fore-and-aft plane triangle hook gear, dry pure gas, which is provided, by extraneous air feed equipment enters air seal set, air film I is formed in air seal set can reduce the friction in horizontal drive shaft rotation process, be conducive to the transmission of power, under the action of transverse triangle balancing suspension hook, balance the gravity of whole device, horizontal drive shaft is eliminated to impact test because of gravity, formation air film II between longitudinal two-freedom movement air bearing and fixed air bearing simultaneously, formation air film between longitudinal triangle balancing suspension hook and longitudinal two-freedom movement air bearing III, so that air seal set is steadily suspended in the plane of high-low temperature chamber side.
Description
Technical field
It is in particular that a kind of high-low temperature chamber horizontal three is free the present invention relates to space flight ground simulation test technical field
Degree low speed wears case axis gas-tight sealing.
Background technique
The horizontal case axis of wearing of low speed is often used in space flight ground-based simulation equipment space environment simulation box.High/low temperature
Using dry dustless gas as protective gas in case, it is exposed to will appear gas in equipment use process, in high-low temperature chamber
Temperature, humidity, cleanliness are influenced by external condition, at the same it is horizontal wear case axis in the process of running, because of the weight of transmission shaft
Power is not balanced, can not only severely impact entire experimental result, but also there is the hidden of expensive equipment in damage high-low temperature chamber
Suffer from.And traditional sealing device is during the test in the presence of the disadvantages of pollution is big, sealing device can rub with transmission shaft.Cause
This, providing a kind of horizontal case shaft sealer important point of wearing of low speed is its, energy balanced gas sealing dress good with air-tightness
Set with the gravity of horizontal transmission shaft, freedom degree more than feature.
Summary of the invention
The object of the present invention is to provide a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber to wear case axis gas-tight sealing, can be with
The friction in horizontal drive shaft rotation process is reduced, the transmission of power is conducive to, reaches that air-tightness is strong, free of contamination sealing is wanted
It asks, under the action of longitudinal triangle balancing suspension hook, balances the gravity of whole device, eliminate horizontal drive shaft because of gravity and to examination
It tests and impacts, under the action of gas pressure, air seal set is enable steadily to be suspended in the plane of high-low temperature chamber side, and
The planar movement that two-freedom is carried out along high-low temperature chamber side plane, certain protection is played to the testing equipment in high-low temperature chamber
Act on and better adapt to the working condition for being difficult to expect complexity of horizontal drive shaft during space flight ground simulation test.
The purpose of the present invention is achieved through the following technical solutions:
A kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber wears case axis gas-tight sealing, including air seal set, laterally transmission
Axis, attachment device, longitudinal two-freedom movement air bearing, pedestal air bearing, high-low temperature chamber and fore-and-aft plane triangle hook gear, it is described
Air seal set includes shell, axle sleeve, sealing gland boss I, sealing gland boss II and adjusts ring, and it is convex that the upper end of shell is fixedly connected with sealing gland
Platform II, the lower end of axle sleeve are fixedly connected with sealing gland boss I, and shell, axle sleeve, sealing gland boss I and sealing gland boss II form cyclic annular sky
Between, it is provided with adjusting ring in annulus, adjusts between ring and shell, axle sleeve and sealing gland boss I there are gap I, gap I is supplying
Air film I is formed under the gas supply of device of air, the air pressure in air film I is higher than the air pressure in high-low temperature chamber, horizontal drive shaft interference fit
It in axle sleeve, is fixedly connected on air seal set on the inside of attachment device, longitudinal two is fixedly connected on the outside of attachment device certainly
Air bearing is moved by degree, pedestal air bearing is fixedly connected on high-low temperature chamber, between longitudinal two-freedom movement air bearing and pedestal air bearing
There are gap II, gap II forms air film II under the gas supply of feeder, is fixedly connected with fore-and-aft plane three on high-low temperature chamber
Angle hook gear forms gap III between the inside of fore-and-aft plane triangle hook gear and longitudinal two-freedom movement air bearing,
Gap III forms air film III under the gas supply of feeder, and the air pressure in air film II and air film III mutually balances promotion longitudinal two freely
Degree movement air bearing floats on the vertical plane of pedestal air bearing side.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
Body sealing device, the air seal set further include gas-guide tube, through-hole, vent plug, annular groove I, honeycomb shape sealing ring I, venthole, bee
Nest shape sealing ring II, annular groove II, honeycomb shape sealing ring III, baffle ring, stripper loop and compressed spring are provided with through-hole on shell,
Gas-guide tube passes through shell and is connected to through-hole, and feeder is connected on gas-guide tube, and vent plug is provided in through-hole, adjusts and is arranged on ring
There is annular groove I, annular groove I is connected to through-hole, adjusts the outside setting of ring there are two honeycomb shape sealing ring I, two honeycombeds are close
Seal I is located at the left and right sides of annular groove I, adjusts and is provided with multiple ventholes on the left of ring, the right end of multiple ventholes
It is connected to annular groove I, gap I of the left end of multiple ventholes between sealing gland boss I and adjusting ring is connected to, and it is left to adjust ring
It is provided with honeycomb shape sealing ring II and annular groove II on the outside of end, adjusts and is provided with honeycomb shape sealing ring III on the inside of ring right end,
It is placed with baffle ring in honeycomb shape sealing ring III, stripper loop is connected on baffle ring, pressure is provided between stripper loop and sealing gland boss II
Contracting spring.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
Body sealing device, the compressed spring are in compressive state, and the equal axis with shell of the axis of gas-guide tube and multiple ventholes is put down
Row.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
Body sealing device corresponds to each other part between the shell, axle sleeve, sealing gland boss I, sealing gland boss II, adjusting ring and stripper loop
Turning be fillet.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
Body sealing device, the attachment device include that washer I, washer II and circular rubber, bolt I sequentially pass through II He of sealing gland boss
Circular rubber is fixedly connected on washer I.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
Body sealing device, the longitudinal direction two-freedom movement air bearing include movable air-float lid, movable air-float, packer ring I, transmit and lead to
Road I, appendix I, delivery outlet I, copper sheathing nozzle I, limit baffle ring, suspension hook suspension boss, marble and magnet I, bolt II is successively
It is fixedly connected on washer II across movable air-float, movable air-float lid and circular rubber, bolt III sequentially passes through movable air-float
It is fixedly connected on movable air-float with movable air-float lid to cover, there are two seal rubbers for setting between movable air-float lid and movable air-float
Ring I is provided with transmission channel I on the right side of movable air-float, and two packer rings I are coaxially disposed with transmission channel I, and transmission is led to
The inner and outer diameter in road I is respectively positioned between two packer rings I, and delivery outlet I is provided with multiple, multiple edge transmission of delivery outlets I
Channel I is circumferential to be uniformly distributed, and multiple delivery outlets I are connected to transmission channel I, are fixedly connected to copper sheathing in multiple delivery outlets I
Nozzle I, appendix I pass through movable air-float lid and are connected to transmission channel I, and air feed equipment is connected on appendix I, and movable air-float is left
Limit baffle ring is fixedly connected on the inside of end, movable air-float, which covers, is fixedly connected with suspension hook suspension boss, and movable air-float covers solid
Surely it is connected with marble, is fixedly connected with magnet I on the inside of suspension hook suspension boss.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
Body sealing device, the pedestal air bearing includes pedestal, pedestal air bearing, packer ring II, transmission channel II, appendix II, defeated
Portal II and copper sheathing nozzle II, screw sequentially passes through pedestal and pedestal air bearing is fixedly connected on high-low temperature chamber, pedestal and pedestal
Setting is there are two packer ring II between air bearing, is provided with transmission channel II on pedestal, and two packer rings II and pass
Defeated channel II is coaxially disposed, and the inner and outer diameter of transmission channel II is respectively positioned between two packer rings II, and appendix II passes through
Pedestal is connected to transmission channel II, and air feed equipment is connected on appendix II, and delivery outlet II is provided with multiple, multiple delivery outlets II
It is circumferentially uniformly distributed along transmission channel II, multiple delivery outlets II are connected to transmission channel II, solid in multiple delivery outlets II
Surely it is connected with copper sheathing nozzle II, forms gap II between pedestal and movable air-float.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
The axial direction of body sealing device, the multiple delivery outlet II is vertically arranged with respect to transmission channel II, the pneumatically supported interior diameter of pedestal and
The interior diameter of high-low temperature chamber is equal, and the axial direction of multiple delivery outlets I is vertically arranged with respect to transmission channel I, relative transport channel I
Interior diameter is greater than the overall diameter of transmission channel II, and the vertical position of the limit baffle ring left end is located at pedestal air bearing right end vertical position
The left side set.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
Body sealing device, the fore-and-aft plane triangle hook gear include servo motor I, screw rod I, movable plate, mobile platform, synchronization
Band, suspension hook, appendix III, gas transmission slot, delivery outlet III, copper sheathing nozzle III, servo motor II, screw rod II, sliding platform, screw rod spiral shell
Base and magnet II, there are two the settings of servo motor I, and two motors I are fixedly connected on high-low temperature chamber, two motors I
It is fixedly connected to screw rod I on output shaft, movable plate has been connected through a screw thread on two screw rods I, two movable plates are solid respectively
Surely the both ends of mobile platform are connected to, servo motor III is fixedly connected on mobile platform, the output shaft of servo motor III uploads
It is dynamic to be connected with synchronous belt, suspension hook is fixedly connected on synchronous belt, there are two the settings of servo motor II, two servo motors II it is defeated
It is fixedly connected to screw rod II on shaft, feed screw nut's seat, sliding platform setting have been connected through a screw thread on two screw rods II
There are two, two feed screw nut's seats are respectively fixedly connected on two sliding platforms, are fixedly connected on two feed screw nut's seats
There is suspension hook, there are three suspension hook settings, and appendix III is respectively connected on three suspension hooks, is respectively connected with and is connected on three appendixs III
Air feed equipment is respectively connected with gas transmission slot on three suspension hooks, and three appendixs III are connected to three gas transmission slots respectively, on three suspension hooks
Multiple delivery outlets III are provided with, are fixedly connected to copper sheathing nozzle III in each delivery outlet III, the one of each copper sheathing nozzle III
End is connected to corresponding gas transmission slot, and the outlet end of each copper sheathing nozzle III is marble, and the outside of three suspension hooks is fixed
It is connected with magnet II, three magnet II are and magnet I is corresponding, and there are gaps III between three suspension hooks and suspension hook suspension boss.
As advanced optimizing for the technical program, a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas
Body sealing device, three suspension hooks are arranged on the right side of fore-and-aft plane movable air-float in equilateral triangle.
A kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears having the beneficial effect that for case axis gas-tight sealing
A kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the present invention wears case axis gas-tight sealing, can prevent high-low temperature chamber
In protective gas overflow, while in air seal set formed air film I can reduce the friction in horizontal drive shaft rotation process,
Be conducive to the transmission of power, and can guarantee that the dew-point temperature inside high-low temperature chamber is constant, horizontal drive shaft can be reduced and turned
Friction during dynamic, is conducive to the transmission of power, reaches that air-tightness is strong, free of contamination seal request；It is balanced in transverse triangle
Under the action of suspension hook, the gravity of whole device is balanced, horizontal drive shaft is eliminated and test is impacted because of gravity, indulge simultaneously
The formation air film II between air bearing and fixed air bearing is moved to two-freedom, longitudinal triangle balancing suspension hook and longitudinal two-freedom are transported
The formation air film III taken offence between floating enables air seal set to be steadily suspended in high-low temperature chamber under the action of gas pressure
In the plane of side, and moving freely for two-freedom is carried out, certain protection is not only played to the testing equipment in high-low temperature chamber
Effect, moreover it is possible to better adapt to the work shape for being difficult to expect complexity of horizontal drive shaft during space flight ground simulation test
Condition.
Detailed description of the invention
The present invention will be further described in detail with specific implementation method with reference to the accompanying drawing.
Fig. 1 is that the horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the invention wears the signal of case axis gas-tight sealing overall structure
Figure；
Fig. 2 is that the horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the invention wears case axis gas-tight sealing right view structural representation
Figure；
Fig. 3 is that the horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the invention wears the signal of case axis gas-tight sealing partial structurtes
Figure；
Fig. 4 is that the horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the invention wears the signal of case axis gas-tight sealing partial structurtes
Figure；
Fig. 5 is A partial enlargement figure structure schematic representation of the invention；
Fig. 6 is air seal set structural schematic diagram of the invention；
Fig. 7 is attachment device structural schematic diagram of the invention；
Fig. 8 is longitudinal two-freedom movement air bearing structural schematic diagram of the invention；
Fig. 9 is D partial enlargement figure structure schematic representation of the invention；
Figure 10 is pedestal air floating structure schematic diagram of the invention；
Figure 11 is E partial enlargement figure structure schematic representation of the invention；
Figure 12 is fore-and-aft plane triangle hook gear structural schematic diagram of the invention；
Figure 13 is F partial enlargement figure structure schematic representation of the invention.
In figure: air seal set 1；Shell 1-1；Axle sleeve 1-2；I 1-3 of sealing gland boss；II 1-4 of sealing gland boss；Gas-guide tube 1-5；
Through-hole 1-6；Vent plug 1-7；Adjust ring 1-8；I 1-9 of annular groove；I 1-10 of honeycomb shape sealing ring；Venthole 1-11；Honeycombed sealing
Enclose II 1-12；II 1-13 of annular groove；III 1-14 of honeycomb shape sealing ring；Baffle ring 1-15；Stripper loop 1-16；Compressed spring 1-17；It is horizontal
To transmission shaft 2；Attachment device 3；I 3-1 of washer；II 3-2 of washer；Circular rubber 3-3；Longitudinal two-freedom moves air bearing 4；It moves
Take offence floating head 4-1；Movable air-float 4-2；I 4-3 of packer ring；I 4-4 of transmission channel；I 4-5 of appendix；I 4-6 of delivery outlet；Copper
Cover nozzle I 4-7；Limit baffle ring 4-8；Suspension hook suspension boss 4-9；Marble 4-10；I 4-11 of magnet；Pedestal air bearing 5；Pedestal 5-
1；Pedestal air bearing 5-2；II 5-3 of packer ring；II 5-4 of transmission channel；II 5-5 of appendix；II 5-6 of delivery outlet；Copper sheathing nozzle
Ⅱ5-7；High-low temperature chamber 6；Fore-and-aft plane triangle hook gear 7；I 7-1 of servo motor；I 7-2 of screw rod；Movable plate 7-3；It is mobile flat
Platform 7-4；Synchronous belt 7-5；Suspension hook 7-6；III 7-7 of appendix；Gas transmission slot 7-8；III 7-9 of delivery outlet；III 7-10 of copper sheathing nozzle；Servo
II 7-11 of motor；II 7-12 of screw rod；Sliding platform 7-13；Feed screw nut's seat 7-14；II 7-15 of magnet.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "top", "bottom", "inner", "outside" and " endways " is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the present invention
Limitation.
In the description of the present invention, it should be noted that unless otherwise expressly provided and limit, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or being integrally connected can
To be to be directly connected to, can also be indirectly connected with by intermediary, can be the connection of two components interiors.For this field
Those of ordinary skill for, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " multiple groups ", " more " be meant that two or
It is more than two.
Specific embodiment 1:
Illustrate present embodiment below with reference to Fig. 1-13, it is close that a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber wears case axis gas
Seal apparatus, including air seal set 1, horizontal drive shaft 2, attachment device 3, longitudinal two-freedom movement air bearing 4, pedestal air bearing 5, height
Cryogenic box 6 and fore-and-aft plane triangle hook gear 7, the air seal set 1 include shell 1-1, axle sleeve 1-2, I 1-3 of sealing gland boss,
II 1-4 of sealing gland boss and adjusting ring 1-8, the upper end of shell 1-1 are fixedly connected with II 1-4 of sealing gland boss, and the lower end of axle sleeve 1-2 is solid
Surely it is connected with I 1-3 of sealing gland boss, shell 1-1, axle sleeve 1-2, I 1-3 of sealing gland boss and II 1-4 of sealing gland boss form annulus,
It is provided in annulus and adjusts ring 1-8, adjusted between existing between ring 1-8 and shell 1-1, I 1-3 of axle sleeve 1-2 and sealing gland boss
Gap I, gap I form air film I under the gas supply of feeder, and the air pressure in air film I is higher than the air pressure in high-low temperature chamber 6, laterally
Transmission shaft 2 is interference fitted in axle sleeve 1-2, and the inside of attachment device 3 is fixedly connected on air seal set 1, outside attachment device 3
Side is fixedly connected on longitudinal two-freedom movement air bearing 4, and pedestal air bearing 5 is fixedly connected on high-low temperature chamber 6, longitudinal two-freedom
It moves between air bearing 4 and pedestal air bearing 5 there are gap II, gap II forms air film II, high/low temperature under the gas supply of feeder
Fore-and-aft plane triangle hook gear 7 is fixedly connected on case 6, the inside of fore-and-aft plane triangle hook gear 7 and longitudinal two is freely
Gap III is formed between degree movement air bearing 4, gap III forms air film III under the gas supply of feeder, in air film II and air film III
Air pressure mutually balance the longitudinal two-freedom movement air bearing 4 of promotion and float on the vertical plane of 5 side of pedestal air bearing；It can prevent height
Protective gas in cryogenic box 6 overflows, while formation air film I can reduce 2 rotation process of horizontal drive shaft in air seal set 1
In friction, be conducive to the transmission of power, and can guarantee that the dew-point temperature inside high-low temperature chamber 6 is constant, cross can be reduced
Friction into 2 rotation process of transmission shaft, is conducive to the transmission of power, reaches that air-tightness is strong, free of contamination seal request；In cross
To under the action of triangle balancing suspension hook 7, the gravity of whole device is balanced, horizontal drive shaft 2 is eliminated and test is made because of gravity
At influence, while longitudinal two-freedom moves the formation air film II between air bearing 4 and fixed air bearing 5, longitudinal triangle balancing suspension hook 7
Formation air film III between the movement air bearing 4 of longitudinal two-freedom keeps air seal set 1 steady under the action of gas pressure
Surely it is suspended in 6 side plane of high-low temperature chamber, and carries out moving freely for two-freedom, not only to the examination in high-low temperature chamber 6
It tests equipment to play a certain protective role, moreover it is possible to better adapt to the horizontal drive shaft 2 during space flight ground simulation test
It is difficult to expect complicated working condition；Horizontal drive shaft 2 in the present apparatus necessarily is in the state that slowly runs, and axial direction
It cannot move.
Specific embodiment 2:
Illustrate present embodiment below with reference to Fig. 1-13, the air seal set 1 further includes gas-guide tube 1-5, through-hole 1-6, gas
Fill in 1-7, I 1-9 of annular groove, I 1-10 of honeycomb shape sealing ring, venthole 1-11, II 1-12 of honeycomb shape sealing ring, II 1- of annular groove
13, III 1-14 of honeycomb shape sealing ring, baffle ring 1-15, stripper loop 1-16 and compressed spring 1-17 are provided with through-hole 1- on shell 1-1
6, gas-guide tube 1-5 pass through shell 1-1 and are connected to through-hole 1-6, and feeder is connected on gas-guide tube 1-5, is provided in through-hole 1-6
Vent plug 1-7 is adjusted and is provided with I 1-9 of annular groove on ring 1-8, and I 1-9 of annular groove is connected to through-hole 1-6, is adjusted and is set on the outside of ring 1-8
I 1-10 of honeycomb shape sealing ring there are two setting, two I 1-10 of honeycomb shape sealing ring are located at the left and right sides of I 1-9 of annular groove,
It adjusts and is provided with multiple venthole 1-11 on the left of ring 1-8, the right end of multiple venthole 1-11 is connected to I 1-9 of annular groove, more
Gap I of the left end of a venthole 1-11 between I 1-3 of sealing gland boss and adjusting ring 1-8 is connected to, and adjusts the left end ring 1-8
Outside is provided with II 1-13 of II 1-12 of honeycomb shape sealing ring and annular groove, and it is close to be provided with honeycombed on the inside of adjusting ring 1-8 right end
It is placed with baffle ring 1-15 on III 1-14 of seal, III 1-14 of honeycomb shape sealing ring, stripper loop 1-16 is connected on baffle ring 1-15, is separated
Compressed spring 1-17 is provided between II 1-4 of ring 1-16 and sealing gland boss；It is filled with dry dustless gas in high-low temperature chamber 6, supplies
Device of air is responsible for the gas supply of air seal set, can have the dustless gas of drying of certain pressure, the drying nothing of conveying with constant delivery
The pressure of dust and gas body is greater than the pressure of dry dustless gas in high-low temperature chamber 6；I 1-10 of honeycomb shape sealing ring, honeycomb shape sealing ring
The effect of III 1-14 of II 1-12 and honeycomb shape sealing ring is to maintain gas in I 1-3 of sealing gland boss, adjust ring 1-8 and deviation shaft set 1-2
Between pressure so that I 1-3 of sealing gland boss, adjust ring 1-8 and deviation shaft set 1-2 keep stablizing, uniform gap I, stripper loop 1-16
Compressed spring 1-17 is provided between II 1-4 of sealing gland boss to guarantee to adjust ring 1-8, shell 1-1 and II 1-4 of sealing gland boss always
There are certain pressure to guarantee the pressure in air film I；The dustless high pressure gas of drying in air seal set 1 is by feeder by leading
Tracheae 1-5 is injected into I 1-9 of annular groove by through-hole 1-6, and the gas in I 1-9 of annular groove is passed to tune along venthole 1-11
When saving the gap I between ring 1-8 and I 1-3 of sealing gland boss, it is divided into both direction and flows to II 1-12 of honeycomb shape sealing ring and bee respectively
III 1-14 of nest shape sealing ring generates turbulence effect at this time and increases air-flow damping action, while the suction of III 1-14 of honeycomb shape sealing ring
Attached effect can play when functions, the air-flows such as frictional resistance sealing flow through honeycomb III 1-14 of shape sealing ring by baffle ring 1-15, a part from
Gap I between stripper loop 1-16 and axle sleeve 1-2 is flowed through, and another part is from baffle ring 1-15 and adjusts the stream of gap I between ring 1-8
It crosses, gas jacks up compressed spring 1-17, and gas passes through a big space, is buffered air-flow, air-flow is equably from axis
The outflow of gap I between set 1-2, II 1-4 of I 1-3 of sealing gland boss, shell 1-1 and sealing gland boss forms air film I to realize gas
Sealing；Stable air film I in homogeneous thickness is formed between axle sleeve 1-2 and adjusting ring 1-8, gas can pass through vertical transmission shaft 2
Top and bottom uniformly flow out, due to the dustless gas pressure of the drying of input be greater than high-low temperature chamber 6 in the dustless gas of drying
Pressure, so that the dustless gas overflowing of drying in high-low temperature chamber 6 is avoided, to reach good sealing effect；Compressed spring 1-
17 final compress adjust ring 1-8, it is ensured that air film I has enough pressure in initial rotation, facilitates air film and maintains air film I
Stabilization.
Specific embodiment 3:
Illustrate present embodiment below with reference to Fig. 1-13, the compressed spring 1-17 is in compressive state, and gap I is greater than
0.1mm, gas-guide tube 1-5 are parallel with the axis of shell 1-1 with the axis of multiple venthole 1-11；Preferred air film I is greater than
0.2mm。
Specific embodiment 4:
Illustrate that present embodiment, the shell 1-1, axle sleeve 1-2, I 1-3 of sealing gland boss, sealing gland are convex below with reference to Fig. 1-13
II 1-4 of platform, the turning for adjusting reciprocal correspondence part between ring 1-8 and stripper loop 1-16 are fillet；Dry dustless high pressure gas
When entering annular groove I 1-9 and II 1-13 of annular groove by high-pressure channel, the corner of process is uniform fillet, be can avoid
Transition position pressure increased dramatically.
Specific embodiment 5:
Illustrate that present embodiment, the attachment device 3 include I 3-1 of washer, II 3-2 of washer and circle below with reference to Fig. 1-13
Ring-shaped rubber 3-3, bolt I sequentially passes through II 1-4 of sealing gland boss and annular shape rubber 3-3 is fixedly connected on I 3-1 of washer.
Specific embodiment 6:
Illustrate present embodiment below with reference to Fig. 1-13, the longitudinal direction two-freedom movement air bearing 4 includes movable air-float lid
4-1, movable air-float 4-2, I 4-3 of packer ring, I 4-4 of transmission channel, I 4-5 of appendix, I 4-6 of delivery outlet, copper sheathing nozzle I 4-
7, limit baffle ring 4-8, suspension hook suspension boss 4-9, I 4-11 of marble 4-10 and magnet, bolt II sequentially pass through movable air-float 4-
2, movable air-float lid 4-1 and annular shape rubber 3-3 are fixedly connected on II 3-2 of washer, and bolt III sequentially passes through movable air-float 4-2
It is fixedly connected on movable air-float lid 4-1 with movable air-float lid 4-1, is provided between movable air-float lid 4-1 and movable air-float 4-2
Be provided with I 4-4 of transmission channel on the right side of two packer rings I 4-3, movable air-float 4-2, two I 4-3 of packer ring and
I 4-4 of transmission channel coaxial arrangement, the inner and outer diameter of I 4-4 of transmission channel are respectively positioned between two I 4-3 of packer ring, are exported
I 4-6 of hole is provided with multiple, and multiple I 4-6 of delivery outlet are circumferentially uniformly distributed along I 4-4 of transmission channel, and multiple I 4-6 of delivery outlet are equal
It is connected to I 4-4 of transmission channel, copper sheathing nozzle I 4-7 is fixedly connected in multiple I 4-6 of delivery outlet, I 4-5 of appendix, which is passed through, to be moved
The floating head 4-1 that takes offence is connected to I 4-4 of transmission channel, is connected with air feed equipment on I 4-5 of appendix, the left end movable air-float 4-2 it is interior
Side is fixedly connected with limit baffle ring 4-8, and suspension hook suspension boss 4-9, movable air-float lid 4- are fixedly connected on movable air-float lid 4-1
It is fixedly connected with marble 4-10 on 1, is fixedly connected with I 4-11 of magnet on the inside of suspension hook suspension boss 4-9.
Specific embodiment 7:
Illustrate present embodiment below with reference to Fig. 1-13, the pedestal air bearing 5 includes pedestal 5-1, pedestal air bearing 5-2, close
Envelope II 5-3 of rubber ring, II 5-4 of transmission channel, II 5-5 of appendix, II 5-6 of delivery outlet and copper sheathing nozzle II 5-7, screw are successively worn
It crosses pedestal 5-1 and pedestal air bearing 5-2 is fixedly connected on high-low temperature chamber 6, be provided with two between pedestal 5-1 and pedestal air bearing 5-2
II 5-4 of transmission channel is provided on a II 5-3 of packer ring, pedestal 5-1, two II 5-3 of packer ring are and transmission is logical
II 5-4 of road coaxial arrangement, the inner and outer diameter of II 5-4 of transmission channel are respectively positioned between two II 5-3 of packer ring, appendix II
5-5 passes through pedestal 5-1 and is connected to II 5-4 of transmission channel, and air feed equipment, II 5-6 of delivery outlet setting are connected on II 5-5 of appendix
Have multiple, multiple II 5-6 of delivery outlet are circumferentially uniformly distributed along II 5-4 of transmission channel, and multiple II 5-6 of delivery outlet are and transmission is logical
II 5-4 of road connection, be fixedly connected in multiple II 5-6 of delivery outlet copper sheathing nozzle II 5-7, pedestal 5-1 and movable air-float 4-2 it
Between formed gap II；Horizontal drive shaft 2 passes through air seal set 1 and connect with 6 internal unit of high-low temperature chamber, and air seal set 1 passes through company
Connection device 3 is linked together with longitudinal two-freedom movement air bearing 4, and longitudinal two-freedom movement air bearing 4 passes through I 4-5 mono- of appendix
End is communicated with extraneous air feed equipment, and the other end is communicated with I 4-4 of transmission channel, and two-freedom moves I 4-4 of transmission channel along longitudinal direction
The circumferencial direction of air bearing 4 is uniformly distributed I 4-6 of delivery outlet, and the gas output end of I 4-6 of delivery outlet is fixed air bearing 5, I 4- of delivery outlet
6 inside is equipped with copper sheathing the nozzle I 4-7, copper sheathing nozzle I 4-7 that aperture is 0.2mm to the fixed uniform jet of air bearing 5 in gap II
Interior formation air film II, fixed air bearing 5 are fixed by screws on high-low temperature chamber 6, pass through II one end 5-5 of appendix and extraneous gas supply
Equipment communicates, and the other end of II 5-5 of appendix is communicated with II 5-4 of transmission channel, circle of II 5-4 of transmission channel along fixed air bearing 5
Circumferential direction is uniformly distributed II 5-6 of delivery outlet, and the gas output end of II 5-6 of delivery outlet is that longitudinal two-freedom moves air bearing 4, output
The inside of II 5-6 of hole is equipped with copper sheathing nozzle II 5-7, copper sheathing nozzle II 5-7 that aperture is 0.2mm to the fixed uniform jet of air bearing 4
Air film II is formed in gap II, so that longitudinal two-freedom is moved air bearing 4 by extraneous air feed equipment and is mutually blown with fixed air bearing 5
Gas forms air film II in gap II, so that longitudinal two-freedom is moved air bearing 4 by air pressure and drives sealing gland to fill using attachment device 3
The plane that 1 is suspended in two freedom degrees in progress " Z " and " Y " axis direction on 6 side of high-low temperature chamber is set to move freely.
Specific embodiment 8:
Illustrate present embodiment below with reference to Fig. 1-13, the axial direction of the multiple II 5-6 of delivery outlet is with respect to transmission channel
II 5-4 is vertically arranged, and the interior diameter of pedestal air bearing 5-2 and the interior diameter of high-low temperature chamber 6 are equal, the axial direction of multiple I 4-6 of delivery outlet
It is vertically arranged with respect to I 4-4 of transmission channel, the interior diameter of I 4-4 of relative transport channel is greater than the overall diameter of II 5-4 of transmission channel,
The vertical position of the left end the limit baffle ring 4-8 is located at the left side of pedestal air bearing 5-2 right end vertical position；Limit baffle ring 4-8 can
To limit during moving freely longitudinal two-freedom movement 4 planar movement range of air bearing, when guaranteeing the present apparatus
It is at quarter under the conditions of best air-tightness and works.
Specific embodiment 9:
Illustrate present embodiment below with reference to Fig. 1-13, the fore-and-aft plane triangle hook gear 7 includes I 7- of servo motor
1, I 7-2 of screw rod, movable plate 7-3, mobile platform 7-4, synchronous belt 7-5, suspension hook 7-6, III 7-7 of appendix, gas transmission slot 7-8, output
III 7-9 of hole, III 7-10 of copper sheathing nozzle, II 7-11 of servo motor, II 7-12 of screw rod, sliding platform 7-13, feed screw nut's seat 7-14
With II 7-15 of magnet, there are two I 7-1 of servo motor settings, and two I 7-1 of motor are fixedly connected on high-low temperature chamber 6, and two
It is fixedly connected to I 7-2 of screw rod on the output shaft of I 7-1 of motor, has been connected through a screw thread movable plate 7- on two I 7-2 of screw rod
3, two movable plate 7-3 are respectively fixedly connected with is fixedly connected with servo electricity on the both ends of mobile platform 7-4, mobile platform 7-4
Machine III is sequentially connected with synchronous belt 7-5 on the output shaft of servo motor III, suspension hook 7-6 is fixedly connected on synchronous belt 7-5, is watched
It takes there are two II 7-11 of motor settings, is fixedly connected to II 7-12 of screw rod on the output shaft of two II 7-11 of servo motor, two
It has been connected through a screw thread on a II 7-12 of screw rod there are two feed screw nut's seat 7-14, sliding platform 7-13 settings, two screw rods
Nut seat 7-14 is respectively fixedly connected on two sliding platform 7-13, is fixedly connected to and is hung on two feed screw nut's seat 7-14
There are three hook 7-6, suspension hook 7-6 settings, is respectively connected with III 7-7 of appendix on three suspension hook 7-6, equal on three III 7-7 of appendix
Be connected with air feed equipment, be respectively connected with gas transmission slot 7-8 on three suspension hook 7-6, three III 7-7 of appendix respectively with three
Gas transmission slot 7-8 is connected to, and multiple III 7-9 of delivery outlet, fixed company in each III 7-9 of delivery outlet are provided on three suspension hook 7-6
It is connected to III 7-10 of copper sheathing nozzle, one end of each III 7-10 of copper sheathing nozzle is connected to corresponding gas transmission slot 7-8, each copper sheathing spray
The outlet end of III 7-10 of mouth is marble 4-10, and II 7-15 of magnet, three magnetic are fixedly connected on the outside of three suspension hook 7-6
II 7-15 of iron is corresponding with I 4-11 of magnet, and there are gaps III between three suspension hook 7-6 and suspension hook suspension boss 4-9；Servo electricity
When I 7-1 of machine is rotated, the output shaft of I 7-1 of servo motor drives I 7-2 of screw rod to be rotated centered on own axes, I 7- of screw rod
2 drive movable plate 7-3 are moved on the axis direction of I 7-2 of screw rod, and two movable plate 7-3 drive mobile platform 7-4 in silk
It is moved on the axis direction of I 7-2 of bar, drives synchronous belt 7-5 to be moved when servo motor III rotates, synchronous belt 7-5 band
The dynamic suspension hook 7-6 being fixedly connected thereon is moved, and the relative position of synchronous belt 7-5 hook 7-6, II 7- of servo motor are changed
When 11 rotation, the output shaft of II 7-11 of servo motor drives II 7-12 of screw rod to be rotated centered on own axes, screw rod II
7-12 drives feed screw nut's seat 7-14 to move on the axis direction of II 7-12 of screw rod, and feed screw nut's seat 7-14 drives thereon
The suspension hook 7-6 being fixedly connected is moved, and the relative position of synchronous belt 7-5 hook 7-6 is changed, and three suspension hook 7-6's is opposite
Position change drives the change of the position in pedestal air bearing 5 of fore-and-aft plane movable air-float 4, passes through I 4- of II 7-15 of magnet and magnet
The magnetic force generated between 11 make three not suspension hook 7-6 do not contacted with suspension hook suspension boss 4-9；It is hung by fore-and-aft plane triangle
Hook device 7 balances the gravity of air seal set 1 and fore-and-aft plane movable air-float 4, while extraneous air feed equipment offer drying is dustless
Gas is entered in gas transmission slot 7-8 by III 7-7 of appendix on three suspension hook 7-6 outer walls, is uniformly sprayed from III 7-10 of copper sheathing nozzle
Air pressure is formed in gap III out, balances fore-and-aft plane movable air-float 4 in the horizontal direction by the gas transmitted by pedestal air bearing 5
Pressure, enables fore-and-aft plane movable air-float 4 and air seal set 1 to stablize in vertical direction.
Specific embodiment 10:
Illustrate present embodiment below with reference to Fig. 1-13, three suspension hook 7-6 are on the right side of fore-and-aft plane movable air-float 4
It is arranged in equilateral triangle；Three suspension hook 7-6 as shown in Figure 2 are arranged on the right side of fore-and-aft plane movable air-float 4 in equilateral triangle, indulge
The gravity and horizontal direction that air seal set 1 and fore-and-aft plane movable air-float 4 can be balanced to plane trigonometry hook gear 7 are by pedestal
The air pressure that air bearing 5 provides stablizes fore-and-aft plane movable air-float 4 and air seal set 1 in vertical direction.
A kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber of the invention wears case axis gas-tight sealing, its working principle is that:
Dry dustless gas is filled in high-low temperature chamber 6, feeder is responsible for the gas supply of air seal set, can be with constant delivery
The dustless gas of drying with certain pressure, the pressure of the dustless gas of the drying of conveying are greater than dry dust-free gas in high-low temperature chamber 6
The pressure of body；The effect of III 1-14 of I 1-10 of honeycomb shape sealing ring, II 1-12 of honeycomb shape sealing ring and honeycomb shape sealing ring is to maintain
Gas I 1-3 of sealing gland boss, adjust ring 1-8 and deviation shaft set 1-2 between pressure so that I 1-3 of sealing gland boss, adjust ring 1-8 and
Deviation shaft covers 1-2 and keeps stable, uniform gap I, being provided with compressed spring 1-17 between II 1-4 of stripper loop 1-16 and sealing gland boss
Guarantee that adjusting ring 1-8, shell 1-1 and II 1-4 of sealing gland boss have the pressure in certain pressure guarantee air film I always；Sealing gland
The dustless high pressure gas of drying in device 1 is injected into I 1-9 of annular groove by through-hole 1-6 by gas-guide tube 1-5 by feeder
Interior, the gas in I 1-9 of annular groove is passed to the gap I adjusted between ring 1-8 and I 1-3 of sealing gland boss along venthole 1-11
When, it is divided into that both direction flows to II 1-12 of honeycomb shape sealing ring respectively and III 1-14 of honeycomb shape sealing ring generates turbulence effect at this time
Air-flow damping action is increased, while the adsorption effect of III 1-14 of honeycomb shape sealing ring can play the functions such as frictional resistance sealing, air-flow
By baffle ring 1-15 when flowing through honeycomb III 1-14 of shape sealing ring, gap I of a part between stripper loop 1-16 and axle sleeve 1-2 is flowed
It crosses, gap I of the another part between baffle ring 1-15 and adjusting ring 1-8 is flowed through, and gas jacks up compressed spring 1-17, gas warp
A big space is crossed, air-flow is buffered, air-flow is equably from axle sleeve 1-2, I 1-3 of sealing gland boss, shell 1-1 and sealing gland
Flow out the sealing for forming air film I to realize gas in gap I between II 1-4 of boss；In axle sleeve 1-2 and adjust between ring 1-8
Stable air film I in homogeneous thickness is formed, gas can uniformly be flowed out by the top and bottom of vertical transmission shaft 2, due to input
Dry dustless gas pressure is greater than the dustless gas pressure of drying in high-low temperature chamber 6, to avoid the drying nothing in high-low temperature chamber 6
Dirt gas overflowing, to reach good sealing effect；Compressed spring 1-17, which is finally compressed, adjusts ring 1-8, it is ensured that air film I
There is enough pressure in initial rotation, facilitates the stabilization that air film maintains air film I；Horizontal drive shaft 2 pass through air seal set 1 with
The connection of 6 internal unit of high-low temperature chamber, air seal set 1 move air bearing 4 with longitudinal two-freedom by attachment device 3 and are linked together,
Longitudinal two-freedom movement air bearing 4 is communicated by I one end 4-5 of appendix with extraneous air feed equipment, the other end and I 4- of transmission channel
4 communicate, and I 4-4 of the transmission channel circumferencial direction that two-freedom moves air bearing 4 along longitudinal direction is uniformly distributed I 4-6 of delivery outlet, delivery outlet I
The gas output end of 4-6 is fixed air bearing 5, and the inside of I 4-6 of delivery outlet is equipped with the copper sheathing nozzle I 4-7 that aperture is 0.2mm, copper sheathing
Nozzle I 4-7 forms air film II to the fixed uniform jet of air bearing 5 in gap II, and fixed air bearing 5 is fixed by screws in high/low temperature
On case 6, communicated by II one end 5-5 of appendix with extraneous air feed equipment, the other end and II 5- of transmission channel of II 5-5 of appendix
4 communicate, and II 5-4 of transmission channel is uniformly distributed II 5-6 of delivery outlet, the gas of II 5-6 of delivery outlet along the circumferencial direction of fixed air bearing 5
Output end is that longitudinal two-freedom moves air bearing 4, and the inside of II 5-6 of delivery outlet is equipped with the copper sheathing nozzle II 5- that aperture is 0.2mm
7, copper sheathing nozzle II 5-7 form air film II to the fixed uniform jet of air bearing 4 in gap II, make longitudinal direction by extraneous air feed equipment
Two-freedom moves air bearing 4 and forms air film II in gap II with the fixed mutually air blowing of air bearing 5, makes longitudinal direction two freely by air pressure
Degree movement air bearing 4 drives air seal set 1 to be suspended in progress " Z " and " Y " axis direction on 6 side of high-low temperature chamber using attachment device 3
The plane of upper two freedom degrees moves freely；When I 7-1 of servo motor is rotated, the output shaft of I 7-1 of servo motor drives I 7- of screw rod
2 are rotated centered on own axes, and I 7-2 of screw rod drives movable plate 7-3 to be transported on the axis direction of I 7-2 of screw rod
Dynamic, two movable plate 7-3 drive mobile platform 7-4 to be moved on the axis direction of I 7-2 of screw rod, and servo motor III rotates
When drive synchronous belt 7-5 to be moved, synchronous belt 7-5 drives the suspension hook 7-6 that is fixedly connected thereon to be moved, and changes synchronous belt
The relative position of 7-5 hook 7-6, when II 7-11 of servo motor is rotated, the output shaft of II 7-11 of servo motor drives screw rod II
7-12 is rotated centered on own axes, and II 7-12 of screw rod drives feed screw nut's seat 7-14 in the axis side of II 7-12 of screw rod
It is moved upwards, feed screw nut's seat 7-14 drives the suspension hook 7-6 being fixedly connected thereon to move, and changes on synchronous belt 7-5
The relative position of suspension hook 7-6, the relative position of three suspension hook 7-6, which changes, drives fore-and-aft plane movable air-float 4 in pedestal air bearing 5
The change of position, by the magnetic force generated between I 4-11 of II 7-15 of magnet and magnet make three not suspension hook 7-6 not with suspension hook
Suspension boss 4-9 contact；The weight of air seal set 1 and fore-and-aft plane movable air-float 4 is balanced by fore-and-aft plane triangle hook gear 7
Power, while extraneous air feed equipment provides dry dustless gas, is entered by III 7-7 of appendix on three suspension hook 7-6 outer walls
It in gas transmission slot 7-8, is uniformly ejected in gap III from III 7-10 of copper sheathing nozzle and forms air pressure, balance fore-and-aft plane movable air-float 4
In the horizontal direction by the air pressure transmitted by pedestal air bearing 5, fore-and-aft plane movable air-float 4 and air seal set 1 is enable to stablize
Vertical direction.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that those of ordinary skill is made within the essential scope of the present invention also belong to guarantor of the invention
Protect range.
Claims (10)
1. a kind of horizontal Three Degree Of Freedom low speed of high-low temperature chamber wears case axis gas-tight sealing, including air seal set (1), laterally transmission
Axis (2), attachment device (3), longitudinal two-freedom movement air bearing (4), pedestal air bearing (5), high-low temperature chamber (6) and fore-and-aft plane three
Angle hook gear (7), it is characterised in that: the air seal set (1) includes shell (1-1), axle sleeve (1-2), I (1- of sealing gland boss
3), sealing gland boss II (1-4) and adjusting ring (1-8), the upper end of shell (1-1) is fixedly connected with sealing gland boss II (1-4), axle sleeve
The lower end of (1-2) is fixedly connected with sealing gland boss I (1-3), shell (1-1), axle sleeve (1-2), sealing gland boss I (1-3) and sealing gland
Boss II (1-4) forms annulus, is provided in annulus and adjusts ring (1-8), adjusts ring (1-8) and shell (1-1), axis
It covers between (1-2) and sealing gland boss I (1-3) there are gap I, gap I forms air film I under the gas supply of feeder, in air film I
Air pressure be higher than the air pressure in high-low temperature chamber (6), horizontal drive shaft (2) is interference fitted in axle sleeve (1-2), attachment device (3)
Inside be fixedly connected on air seal set (1), the movement air bearing of lateral two-freedom is fixedly connected on the outside of attachment device (3)
(4), pedestal air bearing (5) is fixedly connected on high-low temperature chamber (6), longitudinal two-freedom movement air bearing (4) and pedestal air bearing (5) it
Between there are gap II, gap II forms air film II under the gas supply of feeder, is fixedly connected on high-low temperature chamber (6) longitudinal flat
Face triangle hook gear (7), between the inside of fore-and-aft plane triangle hook gear (7) and longitudinal two-freedom movement air bearing (4)
Gap III is formed, gap III forms air film III under the gas supply of feeder, and the air pressure in air film II and air film III mutually balances
Longitudinal two-freedom movement air bearing (4) is pushed to float on the vertical plane of pedestal air bearing (5) side.
2. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 1 wears case axis gas-tight sealing, special
Sign is: the air seal set (1) further includes gas-guide tube (1-5), through-hole (1-6), vent plug (1-7), annular groove I (1-9), honeycomb
Shape sealing ring I (1-10), venthole (1-11), honeycomb shape sealing ring II (1-12), annular groove II (1-13), honeycomb shape sealing ring
III (1-14), baffle ring (1-15), stripper loop (1-16) and compressed spring (1-17) are provided with through-hole (1-6) on shell (1-1),
Gas-guide tube (1-5) passes through shell (1-1) and is connected to through-hole (1-6), and feeder, through-hole (1-6) are connected on gas-guide tube (1-5)
It is inside provided with vent plug (1-7), adjusts and be provided with annular groove I (1-9) on ring (1-8), annular groove I (1-9) and through-hole (1-6) are even
It is logical, it adjusts there are two the outside settings of ring (1-8) honeycomb shape sealing ring I (1-10), two honeycomb shape sealing rings I (1-10) are respectively
Positioned at the left and right sides of annular groove I (1-9), adjusts and be provided with multiple ventholes (1-11), multiple ventholes on the left of ring (1-8)
The right end of (1-11) is connected to annular groove I (1-9), and the left ends of multiple ventholes (1-11) is and sealing gland boss I (1-3) and tune
The gap I saved between ring (1-8) is connected to, and is adjusted and is provided with honeycomb shape sealing ring II (1-12) and ring on the outside of the left end ring (1-8)
Shape slot II (1-13) adjusts and is provided with honeycomb shape sealing ring III (1-14), honeycomb shape sealing ring III on the inside of ring (1-8) right end
It is placed with baffle ring (1-15), is connected on baffle ring (1-15) stripper loop (1-16) on (1-14), stripper loop (1-16) and sealing gland are convex
Compressed spring (1-17) is provided between platform II (1-4).
3. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 2 wears case axis gas-tight sealing, special
Sign is: the compressed spring (1-17) is in compressive state, the axis of gas-guide tube (1-5) and multiple ventholes (1-11) and
The axis of shell (1-1) is parallel.
4. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 2 wears case axis gas-tight sealing, special
Sign is: the shell (1-1), sealing gland boss I (1-3), sealing gland boss II (1-4), adjusts ring (1-8) and divides axle sleeve (1-2)
It is fillet that the turning of part is corresponded to each other between spacer ring (1-16).
5. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 4 wears case axis gas-tight sealing, special
Sign is: the attachment device (3) includes that washer I (3-1), washer II (3-2) and circular rubber (3-3), bolt I are successively worn
It crosses sealing gland boss II (1-4) and circular rubber (3-3) is fixedly connected on washer I (3-1).
6. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 5 wears case axis gas-tight sealing, special
Sign is: longitudinal direction two-freedom movement air bearing (4) includes movable air-float lid (4-1), movable air-float (4-2), seal rubber
Ring I (4-3), transmission channel I (4-4), appendix I (4-5), delivery outlet I (4-6), copper sheathing nozzle I (4-7), limit baffle ring (4-
8), suspension hook suspension boss (4-9), marble (4-10) and magnet I (4-11), bolt II sequentially pass through movable air-float (4-2), move
It takes offence floating head (4-1) and circular rubber (3-3) is fixedly connected on washer II (3-2), bolt III sequentially passes through movable air-float
(4-2) and movable air-float lid (4-1) are fixedly connected on movable air-float lid (4-1), movable air-float lid (4-1) and movable air-float
Between (4-2) there are two settings packer ring I (4-3), it is provided with transmission channel I (4-4) on the right side of movable air-float (4-2),
Two packer rings I (4-3) are respectively positioned on transmission channel I (4-4) coaxial arrangement, the inner and outer diameter of transmission channel I (4-4)
Between two packer rings I (4-3), delivery outlet I (4-6) is provided with multiple, and multiple delivery outlets I (4-6) are along transmission channel I
(4-4) is circumferentially uniformly distributed, and multiple delivery outlets I (4-6) are connected to transmission channel I (4-4), in multiple delivery outlets I (4-6)
It being fixedly connected with copper sheathing nozzle I (4-7), appendix I (4-5) passes through movable air-float lid (4-1) and is connected to transmission channel I (4-4),
It is connected with air feed equipment on appendix I (4-5), is fixedly connected with limit baffle ring (4-8) on the inside of the left end movable air-float (4-2),
It is fixedly connected with suspension hook suspension boss (4-9) on movable air-float lid (4-1), is fixedly connected with Dali on movable air-float lid (4-1)
Stone (4-10) is fixedly connected with magnet I (4-11) on the inside of suspension hook suspension boss (4-9).
7. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 6 wears case axis gas-tight sealing, special
Sign is: the pedestal air bearing (5) includes pedestal (5-1), pedestal air bearing (5-2), packer ring II (5-3), transmission channel
II (5-4), appendix II (5-5), delivery outlet II (5-6) and copper sheathing nozzle II (5-7), screw sequentially pass through pedestal (5-1) and
Pedestal air bearing (5-2) is fixedly connected on high-low temperature chamber (6), and there are two close for setting between pedestal (5-1) and pedestal air bearing (5-2)
It seals rubber ring II (5-3), is provided with transmission channel II (5-4) on pedestal (5-1), two packer rings II (5-3) are equal and pass
The coaxial arrangement of defeated channel II (5-4), the inner and outer diameter of transmission channel II (5-4) be respectively positioned on two packer rings II (5-3) it
Between, appendix II (5-5) passes through pedestal (5-1) and is connected to transmission channel II (5-4), is connected with gas supply on appendix II (5-5)
Equipment, delivery outlet II (5-6) are provided with multiple, and multiple delivery outlets II (5-6) are circumferential uniformly point along transmission channel II (5-4)
Cloth, multiple delivery outlets II (5-6) are connected to transmission channel II (5-4), are fixedly connected to copper in multiple delivery outlets II (5-6)
It covers nozzle II (5-7), forms gap II between pedestal (5-1) and movable air-float (4-2).
8. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 7 wears case axis gas-tight sealing, special
Sign is: the axial direction of the multiple delivery outlet II (5-6) is vertically arranged with respect to transmission channel II (5-4), pedestal air bearing (5-2)
Interior diameter and high-low temperature chamber (6) interior diameter it is equal, the axial direction of multiple delivery outlets I (4-6) is with respect to transmission channel I (4-4)
It is vertically arranged, the interior diameter of relative transport channel I (4-4) is greater than the overall diameter of transmission channel II (5-4), the limit baffle ring
The vertical position of the left end (4-8) is located at the left side of pedestal air bearing (5-2) right end vertical position.
9. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 8 wears case axis gas-tight sealing, special
Sign is: the fore-and-aft plane triangle hook gear (7) include servo motor I (7-1), screw rod I (7-2), movable plate (7-3),
Mobile platform (7-4), synchronous belt (7-5), suspension hook (7-6), appendix III (7-7), gas transmission slot (7-8), delivery outlet III (7-9),
Copper sheathing nozzle III (7-10), servo motor II (7-11), screw rod II (7-12), sliding platform (7-13), feed screw nut's seat (7-
14) with magnet II (7-15), there are two servo motor I (7-1) settings, and two motors I (7-1) are fixedly connected in high-low temperature chamber
(6) it on, is fixedly connected on the output shaft of two motors I (7-1) screw rod I (7-2), passes through spiral shell on two screw rods I (7-2)
Line is connected with movable plate (7-3), and two movable plates (7-3) are respectively fixedly connected in the both ends of mobile platform (7-4), mobile platform
It is fixedly connected with servo motor III on (7-4), synchronous belt (7-5), synchronous belt are sequentially connected on the output shaft of servo motor III
It is fixedly connected on (7-5) suspension hook (7-6), there are two servo motor II (7-11) settings, two servo motors II (7-11)
It is fixedly connected on output shaft screw rod II (7-12), feed screw nut's seat has been connected through a screw thread on two screw rods II (7-12)
(7-14), there are two sliding platform (7-13) settings, and two feed screw nut's seats (7-14) are respectively fixedly connected with flat in two slidings
On platform (7-13), it is fixedly connected to suspension hook (7-6) on two feed screw nut's seats (7-14), there are three suspension hook (7-6) settings, and three
It is respectively connected with appendix III (7-7) on a suspension hook (7-6), is respectively connected on three appendixs III (7-7) and is connected with air feed equipment,
It is respectively connected with gas transmission slot (7-8) on three suspension hooks (7-6), three appendixs III (7-7) connect with three gas transmission slots (7-8) respectively
It is logical, it is provided with multiple delivery outlets III (7-9) on three suspension hooks (7-6), is fixedly connected to copper in each delivery outlet III (7-9)
It covers nozzle III (7-10), one end of each copper sheathing nozzle III (7-10) is connected to corresponding gas transmission slot (7-8), each copper sheathing spray
The outlet end of mouth III (7-10) is marble (4-10), is fixedly connected to II (7- of magnet on the outside of three suspension hooks (7-6)
15), three magnet II (7-15) are and magnet I (4-11) is corresponding, three suspension hooks (7-6) and suspension hook suspension boss (4-9) it
Between there are gaps III.
10. the horizontal Three Degree Of Freedom low speed of a kind of high-low temperature chamber according to claim 9 wears case axis gas-tight sealing, special
Sign is: three suspension hooks (7-6) are arranged on the right side of fore-and-aft plane movable air-float (4) in equilateral triangle.
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| CN201910296454.0A CN109973662B (en) | 2019-04-13 | 2019-04-13 | High-low temperature box transverse three-degree-of-freedom low-speed box penetrating shaft gas sealing device |
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| CN109973662B CN109973662B (en) | 2020-06-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110778823A (en) * | 2019-12-03 | 2020-02-11 | 中国工程物理研究院总体工程研究所 | Bidirectional air-float rotary joint |
| CN110966229A (en) * | 2019-12-23 | 2020-04-07 | 东方电气集团东方汽轮机有限公司 | Coaxial integrated radial-axial mixed flow wet air turbine compressor rotor structure |
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| JPH051531A (en) * | 1991-06-21 | 1993-01-08 | Honda Motor Co Ltd | Adiabatic clamping structure |
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| CN110778823A (en) * | 2019-12-03 | 2020-02-11 | 中国工程物理研究院总体工程研究所 | Bidirectional air-float rotary joint |
| CN110966229A (en) * | 2019-12-23 | 2020-04-07 | 东方电气集团东方汽轮机有限公司 | Coaxial integrated radial-axial mixed flow wet air turbine compressor rotor structure |
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| CN109973662B (en) | 2020-06-02 |
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